Initial creation of sourceware repository

78 files changed, 37404 insertions, 0 deletions

diff --git a/readline/CHANGELOG b/readline/CHANGELOG
new file mode 100644
index 00000000000..8094590945c
--- /dev/null
+++ b/readline/CHANGELOG
@@ -0,0 +1,77 @@
+[Readline-specific changelog.  Descriptions of changes to the source are
+ found in the bash changelog.]
+
+				    6/9
+				    ---
+Makefile.in
+	- quote value of ${INSTALL_DATA} when passing it to makes in
+	  subdirectories
+
+				    7/1
+				    ---
+Makefile.in
+	- don't pass INSTALL_DATA to a make in the `doc' subdirectory; let
+	  autoconf set the value itself in the Makefile
+	- removed a stray `-' before $(RANLIB) in the `install' recipe
+
+doc/Makefile.in
+	- add a VPATH assignment so the documentation is not remade if it's
+	  already up-to-date in the distribution
+
+configure.in
+	- call AC_SUBST(LOCAL_LDFLAGS), since Makefile.in contains
+	  @LOCAL_LDFLAGS@
+
+				    7/9
+				    ---
+
+config.h.in
+	- add define lines for STRUCT_WINSIZE_IN_SYS_IOCTL and
+	  STRUCT_WINSIZE_IN_TERMIOS
+
+configure.in
+	- call BASH_STRUCT_WINSIZE to look for the definition of
+	  `struct winsize'
+
+				   7/17
+				   ----
+configure.in
+	- call AC_MINIX
+
+config.h.in
+	- add define line for AC_MINIX
+
+				   7/18
+				   ----
+Makefile.in
+	- add `install-shared' and `uninstall-shared' targets
+
+				    8/4
+				    ---
+Makefile.in
+	- install and uninstall libhistory.a in the `install' and
+	  `uninstall' targets
+
+				    9/4
+				    ---
+configure.in
+	- bumped LIBVERSION up to 2.1.1, indicating that this is patch
+	  level 1 to release 2.1
+
+
+				   9/16
+				   ----
+Makefile.in
+	- `make distclean' now descends into the `examples' subdir
+
+doc/Makefile.in
+	- the `distclean' and `maintainer-clean' targets should remove
+	  Makefile
+
+examples/Makefile.in
+	- added the various clean targets
+
+				    4/2
+				    ---
+configure.in
+	- bumped LIBVERSION up to 2.2
diff --git a/readline/CHANGES b/readline/CHANGES
new file mode 100644
index 00000000000..382406e30db
--- /dev/null
+++ b/readline/CHANGES
@@ -0,0 +1,84 @@
+This document details the changes between this version, readline-2.2.1,
+and the previous version, readline-2.2.
+
+1.  Changes to Readline
+
+a.  The `make install' target was corrected so that it did not move the
+    newly-installed libreadline.a to libhistory.old
+
+b.  The `make install' target for the documentation will now install the
+    info files from the source directory if they do not appear in the
+    build directory, since they are shipped in the readline tar file.
+
+c.  Fixed a problem with redisplay that showed up when the prompt string was
+    longer than the screen width and the prompt contained invisible characters.
+
+d.  Fixed a problem with the paren matching code -- the blink was far too
+    short (it's specified in microseconds, not milliseconds, Chet!).
+
+------------------------------------------------------------------------------
+This document details the changes between this version, readline-2.2,
+and the previous version, readline-2.1.
+
+1.  Changes to Readline
+
+a.  Added a missing `extern' to a declaration in readline.h that kept
+    readline from compiling cleanly on some systems.
+
+b.  The history file is now opened with mode 0600 when it is written for
+    better security.
+
+c.  Changes were made to the SIGWINCH handling code so that prompt redisplay
+    is done better.
+
+d.  ^G now interrupts incremental searches correctly.
+
+e.  A bug that caused a core dump when the set of characters to be quoted
+    when completing words was empty was fixed.
+
+f.  Fixed a problem in the readline test program rltest.c that caused a core
+    dump.
+
+g.  The code that handles parser directives in inputrc files now displays
+    more error messages.
+
+h.  The history expansion code was fixed so that the appearance of the
+    history comment character at the beginning of a word inhibits history
+    expansion for that word and the rest of the input line.
+
+i.  The code that prints completion listings now behaves better if one or
+    more of the filenames contains non-printable characters.
+
+j.  The time delay when showing matching parentheses is now 0.5 seconds.
+
+
+2.  New Features in Readline
+
+a.  There is now an option for `iterative' yank-last-arg handline, so a user
+    can keep entering `M-.', yanking the last argument of successive history
+    lines.
+
+b.  New variable, `print-completions-horizontally', which causes completion
+    matches to be displayed across the screen (like `ls -x') rather than up
+    and down the screen (like `ls').
+
+c.  New variable, `completion-ignore-case', which causes filename completion
+    and matching to be performed case-insensitively.
+
+d.  There is a new bindable command, `magic-space', which causes history
+    expansion to be performed on the current readline buffer and a space to
+    be inserted into the result.
+
+e.  There is a new bindable command, `menu-complete', which enables tcsh-like
+    menu completion (successive executions of menu-complete insert a single
+    completion match, cycling through the list of possible completions).
+
+f.  There is a new bindable command, `paste-from-clipboard', for use on Win32
+    systems, to insert the text from the Win32 clipboard into the editing
+    buffer.
+
+g.  The key sequence translation code now understands printf-style backslash
+    escape sequences, including \NNN octal escapes.  These escape sequences
+    may be used in key sequence definitions or macro values.
+
+h.  An `$include' inputrc file parser directive has been added.
diff --git a/readline/COPYING b/readline/COPYING
new file mode 100644
index 00000000000..a43ea2126fb
--- /dev/null
+++ b/readline/COPYING
@@ -0,0 +1,339 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                          675 Mass Ave, Cambridge, MA 02139, USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	Appendix: How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) 19yy  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) 19yy name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/readline/INSTALL b/readline/INSTALL
new file mode 100644
index 00000000000..95d84c820fb
--- /dev/null
+++ b/readline/INSTALL
@@ -0,0 +1,176 @@
+Basic Installation
+==================
+
+   These are generic installation instructions.
+
+   The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation.  It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions.  Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, a file
+`config.cache' that saves the results of its tests to speed up
+reconfiguring, and a file `config.log' containing compiler output
+(useful mainly for debugging `configure').
+
+   If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release.  If at some point `config.cache'
+contains results you don't want to keep, you may remove or edit it.
+
+   The file `configure.in' is used to create `configure' by a program
+called `autoconf'.  You only need `configure.in' if you want to change
+it or regenerate `configure' using a newer version of `autoconf'.
+
+The simplest way to compile this package is:
+
+  1. `cd' to the directory containing the package's source code and type
+     `./configure' to configure the package for your system.  If you're
+     using `csh' on an old version of System V, you might need to type
+     `sh ./configure' instead to prevent `csh' from trying to execute
+     `configure' itself.
+
+     Running `configure' takes awhile.  While running, it prints some
+     messages telling which features it is checking for.
+
+  2. Type `make' to compile the package.
+
+  3. Optionally, type `make check' to run any self-tests that come with
+     the package.
+
+  4. Type `make install' to install the programs and any data files and
+     documentation.
+
+  5. You can remove the program binaries and object files from the
+     source code directory by typing `make clean'.  To also remove the
+     files that `configure' created (so you can compile the package for
+     a different kind of computer), type `make distclean'.  There is
+     also a `make maintainer-clean' target, but that is intended mainly
+     for the package's developers.  If you use it, you may have to get
+     all sorts of other programs in order to regenerate files that came
+     with the distribution.
+
+Compilers and Options
+=====================
+
+   Some systems require unusual options for compilation or linking that
+the `configure' script does not know about.  You can give `configure'
+initial values for variables by setting them in the environment.  Using
+a Bourne-compatible shell, you can do that on the command line like
+this:
+     CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
+
+Or on systems that have the `env' program, you can do it like this:
+     env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
+
+Compiling For Multiple Architectures
+====================================
+
+   You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory.  To do this, you must use a version of `make' that
+supports the `VPATH' variable, such as GNU `make'.  `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script.  `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.
+
+   If you have to use a `make' that does not supports the `VPATH'
+variable, you have to compile the package for one architecture at a time
+in the source code directory.  After you have installed the package for
+one architecture, use `make distclean' before reconfiguring for another
+architecture.
+
+Installation Names
+==================
+
+   By default, `make install' will install the package's files in
+`/usr/local/bin', `/usr/local/man', etc.  You can specify an
+installation prefix other than `/usr/local' by giving `configure' the
+option `--prefix=PATH'.
+
+   You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files.  If you
+give `configure' the option `--exec-prefix=PATH', the package will use
+PATH as the prefix for installing programs and libraries.
+Documentation and other data files will still use the regular prefix.
+
+   If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+Optional Features
+=================
+
+   Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System).  The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+   For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+Specifying the System Type
+==========================
+
+   There may be some features `configure' can not figure out
+automatically, but needs to determine by the type of host the package
+will run on.  Usually `configure' can figure that out, but if it prints
+a message saying it can not guess the host type, give it the
+`--host=TYPE' option.  TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name with three fields:
+     CPU-COMPANY-SYSTEM
+
+See the file `config.sub' for the possible values of each field.  If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the host type.
+
+   If you are building compiler tools for cross-compiling, you can also
+use the `--target=TYPE' option to select the type of system they will
+produce code for and the `--build=TYPE' option to select the type of
+system on which you are compiling the package.
+
+Sharing Defaults
+================
+
+   If you want to set default values for `configure' scripts to share,
+you can create a site shell script called `config.site' that gives
+default values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists.  Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Operation Controls
+==================
+
+   `configure' recognizes the following options to control how it
+operates.
+
+`--cache-file=FILE'
+     Use and save the results of the tests in FILE instead of
+     `./config.cache'.  Set FILE to `/dev/null' to disable caching, for
+     debugging `configure'.
+
+`--help'
+     Print a summary of the options to `configure', and exit.
+
+`--quiet'
+`--silent'
+`-q'
+     Do not print messages saying which checks are being made.
+
+`--srcdir=DIR'
+     Look for the package's source code in directory DIR.  Usually
+     `configure' can determine that directory automatically.
+
+`--version'
+     Print the version of Autoconf used to generate the `configure'
+     script, and exit.
+
+`configure' also accepts some other, not widely useful, options.
+
diff --git a/readline/MANIFEST b/readline/MANIFEST
new file mode 100644
index 00000000000..e9e1c4005f9
--- /dev/null
+++ b/readline/MANIFEST
@@ -0,0 +1,85 @@
+#
+# Master distribution manifest for the standalone readline distribution
+#
+doc		d
+examples	d
+support		d
+COPYING		f
+README		f
+MANIFEST	f
+INSTALL		f
+CHANGELOG	f
+CHANGES		f
+aclocal.m4	f
+acconfig.h	f
+config.h.in	f
+configure	f
+configure.in	f
+Makefile.in	f
+ansi_stdlib.h	f
+chardefs.h	f
+history.h	f
+histlib.h	f
+keymaps.h	f
+posixdir.h	f
+posixjmp.h	f
+posixstat.h	f
+readline.h	f
+rlconf.h	f
+rldefs.h	f
+rltty.h		f
+rlwinsize.h	f
+tcap.h		f
+tilde.h		f
+bind.c		f
+complete.c	f
+display.c	f
+emacs_keymap.c	f
+funmap.c	f
+input.c		f
+isearch.c	f
+keymaps.c	f
+kill.c		f
+macro.c		f
+nls.c		f
+parens.c	f
+readline.c	f
+rltty.c		f
+search.c	f
+shell.c		f
+signals.c	f
+terminal.c	f
+tilde.c		f
+undo.c		f
+util.c		f
+vi_keymap.c	f
+vi_mode.c	f
+callback.c	f
+xmalloc.c	f
+history.c	f
+histexpand.c	f
+histfile.c	f
+histsearch.c	f
+support/config.guess	f
+support/config.sub	f
+support/install.sh	f
+support/mkdirs		f
+support/mkdist		f
+doc/Makefile.in		f
+doc/texinfo.tex		f
+doc/rlman.texinfo	f
+doc/rltech.texinfo	f
+doc/rluser.texinfo	f
+doc/hist.texinfo	f
+doc/hstech.texinfo	f
+doc/hsuser.texinfo	f
+doc/readline.3		f
+doc/texi2dvi		f
+doc/texi2html		f
+examples/Makefile.in	f
+examples/fileman.c	f
+examples/manexamp.c	f
+examples/rltest.c	f
+examples/rl.c		f
+examples/histexamp.c	f
+examples/Inputrc	f
diff --git a/readline/Makefile.in b/readline/Makefile.in
new file mode 100644
index 00000000000..0c5c169fe28
--- /dev/null
+++ b/readline/Makefile.in
@@ -0,0 +1,560 @@
+## -*- text -*- ##
+# Master Makefile for the GNU readline library.
+# Copyright (C) 1994, 1998 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+RL_LIBRARY_VERSION = @LIBVERSION@
+RL_LIBRARY_NAME = readline
+
+srcdir = @srcdir@
+VPATH = .:@srcdir@
+top_srcdir = @top_srcdir@
+BUILD_DIR = @BUILD_DIR@
+
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+
+CC = @CC@
+LD = ld			# needed when building shared libraries
+RANLIB = @RANLIB@
+AR = ar
+RM = rm -f
+CP = cp
+MV = mv
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+libdir = @libdir@
+mandir = @mandir@
+includedir = @includedir@
+
+infodir = @infodir@
+
+man3dir = $(mandir)/man3
+
+SHELL = /bin/sh
+
+# Programs to make tags files.
+ETAGS = etags -tw
+CTAGS = ctags -tw
+
+CFLAGS = @CFLAGS@
+LOCAL_CFLAGS = @LOCAL_CFLAGS@ -DRL_LIBRARY_VERSION='"$(RL_LIBRARY_VERSION)"'
+CPPFLAGS = @CPPFLAGS@
+LDFLAGS = @LDFLAGS@ @LOCAL_LDFLAGS@ @CFLAGS@
+
+DEFS = @DEFS@
+LOCAL_DEFS = @LOCAL_DEFS@
+
+# For libraries which include headers from other libraries.
+INCLUDES = -I. -I$(srcdir) -I$(includedir)
+
+CCFLAGS = $(DEFS) $(LOCAL_DEFS) $(CPPFLAGS) $(INCLUDES) $(LOCAL_CFLAGS) $(CFLAGS)
+
+# these two options need tweaking for compiler/OS versions other than gcc
+# and SunOS4
+PICFLAG=        -fpic    # -pic for some versions of cc
+SHLIB_OPTS=	-assert pure-text -ldl	# -Bshareable for some versions of gcc
+
+MAJOR=		3
+# shared library systems like SVR4's do not use minor versions
+MINOR=		.0
+
+.SUFFIXES:	.so
+
+.c.o:
+	$(CC) -c $(CCFLAGS) $<
+
+.c.so:
+	-mv $*.o z$*.o
+	$(CC) -c $(PICFLAG) $(CCFLAGS) $< 
+	mv $*.o $@
+	-mv z$*.o $*.o
+
+# The name of the main library target.
+LIBRARY_NAME = libreadline.a
+STATIC_LIBS = libreadline.a libhistory.a
+
+SHARED_READLINE = libreadline.so.$(MAJOR)$(MINOR)
+SHARED_HISTORY = libhistory.so.$(MAJOR)$(MINOR)
+SHARED_LIBS = $(SHARED_READLINE) $(SHARED_HISTORY)
+
+# The C code source files for this library.
+CSOURCES = $(srcdir)/readline.c $(srcdir)/funmap.c $(srcdir)/keymaps.c \
+	   $(srcdir)/vi_mode.c $(srcdir)/parens.c $(srcdir)/rltty.c \
+	   $(srcdir)/complete.c $(srcdir)/bind.c $(srcdir)/isearch.c \
+	   $(srcdir)/display.c $(srcdir)/signals.c $(srcdir)/emacs_keymap.c \
+	   $(srcdir)/vi_keymap.c $(srcdir)/util.c $(srcdir)/kill.c \
+	   $(srcdir)/undo.c $(srcdir)/macro.c $(srcdir)/input.c \
+	   $(srcdir)/callback.c $(srcdir)/terminal.c $(srcdir)/xmalloc.c \
+	   $(srcdir)/history.c $(srcdir)/histsearch.c $(srcdir)/histexpand.c \
+	   $(srcdir)/histfile.c $(srcdir)/nls.c $(srcdir)/search.c \
+	   $(srcdir)/shell.c $(srcdir)/tilde.c
+
+# The header files for this library.
+HSOURCES = readline.h rldefs.h chardefs.h keymaps.h history.h histlib.h \
+	   posixstat.h posixdir.h posixjmp.h tilde.h rlconf.h rltty.h \
+	   ansi_stdlib.h tcap.h
+
+HISTOBJ = history.o histexpand.o histfile.o histsearch.o shell.o
+TILDEOBJ = tilde.o
+OBJECTS = readline.o vi_mode.o funmap.o keymaps.o parens.o search.o \
+	  rltty.o complete.o bind.o isearch.o display.o signals.o \
+	  util.o kill.o undo.o macro.o input.o callback.o terminal.o \
+	  nls.o xmalloc.o $(HISTOBJ) $(TILDEOBJ)
+
+SHARED_HISTOBJ = history.so histexpand.so histfile.so histsearch.so shell.so
+SHARED_TILDEOBJ = tilde.so
+SHARED_OBJ = readline.so vi_mode.so funmap.so keymaps.so parens.so search.so \
+	  rltty.so complete.so bind.so isearch.so display.so signals.so \
+	  util.so kill.so undo.so macro.so input.so callback.so terminal.so \
+	  nls.so xmalloc.so $(SHARED_HISTOBJ) $(SHARED_TILDEOBJ)
+
+# The texinfo files which document this library.
+DOCSOURCE = doc/rlman.texinfo doc/rltech.texinfo doc/rluser.texinfo
+DOCOBJECT = doc/readline.dvi
+DOCSUPPORT = doc/Makefile
+DOCUMENTATION = $(DOCSOURCE) $(DOCOBJECT) $(DOCSUPPORT)
+
+CREATED_MAKEFILES = Makefile doc/Makefile examples/Makefile
+CREATED_CONFIGURE = config.status config.h config.cache config.log \
+		    stamp-config stamp-h
+CREATED_TAGS = TAGS tags
+
+INSTALLED_HEADERS = readline.h chardefs.h keymaps.h history.h tilde.h
+
+##########################################################################
+
+all: static
+
+static: $(STATIC_LIBS)
+shared: $(SHARED_LIBS)
+
+libreadline.a: $(OBJECTS)
+	$(RM) $@
+	$(AR) cr $@ $(OBJECTS)
+	-test -n "$(RANLIB)" && $(RANLIB) $@
+
+libhistory.a: $(HISTOBJ) xmalloc.o
+	$(RM) $@
+	$(AR) cr $@ $(HISTOBJ) xmalloc.o
+	-test -n "$(RANLIB)" && $(RANLIB) $@
+
+$(SHARED_READLINE):	$(SHARED_OBJ)
+	$(RM) $@
+	$(LD) ${SHLIB_OPTS} -o $@ $(SHARED_OBJ)
+
+$(SHARED_HISTORY):	$(SHARED_HISTOBJ) xmalloc.so
+	$(RM) $@
+	$(LD) ${SHLIB_OPTS} -o $@ $(SHARED_HISTOBJ) xmalloc.so
+
+readline: $(OBJECTS) readline.h rldefs.h chardefs.h
+	$(CC) $(CCFLAGS) -o $@ ./examples/rl.c ./libreadline.a -ltermcap
+
+Makefile makefile: config.status $(srcdir)/Makefile.in
+	CONFIG_FILES=Makefile CONFIG_HEADERS= $(SHELL) ./config.status
+
+Makefiles makefiles: config.status $(srcdir)/Makefile.in
+	@for mf in $(CREATED_MAKEFILES); do \
+		CONFIG_FILES=$$mf CONFIG_HEADERS= $(SHELL) ./config.status ; \
+	done
+
+config.status: configure
+	$(SHELL) ./config.status --recheck
+
+config.h:	stamp-h
+
+stamp-h: config.status $(srcdir)/config.h.in
+	CONFIG_FILES= CONFIG_HEADERS=config.h ./config.status
+	echo > $@
+
+# CYGNUS LOCAL: Never run autoconf.
+#$(srcdir)/configure: $(srcdir)/configure.in	 Comment-me-out in distribution
+#	cd $(srcdir) && autoconf	 Comment-me-out in distribution
+
+documentation: force
+	-test -d doc || mkdir doc
+	-( cd doc && $(MAKE) $(MFLAGS) )
+
+examples: force
+	-test -d examples || mkdir examples
+	-(cd examples && ${MAKE} ${MFLAGS} all )
+
+force:
+
+install: installdirs $(STATIC_LIBS)
+	for f in ${INSTALLED_HEADERS}; do \
+		$(INSTALL_DATA) $(srcdir)/$$f $(includedir)/readline ; \
+	done
+	-( if test -f $(libdir)/libreadline.a ; then $(MV) $(libdir)/libreadline.a $(libdir)/libreadline.old; fi )
+	$(INSTALL_DATA) libreadline.a $(libdir)/libreadline.a
+	-test -n "$(RANLIB)" && $(RANLIB) -t $(libdir)/libreadline.a
+	-( if test -f $(libdir)/libhistory.a; then $(MV) $(libdir)/libhistory.a $(libdir)/libhistory.old; fi )
+	$(INSTALL_DATA) libhistory.a $(libdir)/libhistory.a
+	-test -n "$(RANLIB)" && $(RANLIB) -t $(libdir)/libhistory.a
+	-( if test -d doc ; then \
+		cd doc && \
+		${MAKE} ${MFLAGS} infodir=$(infodir) $@; \
+	  fi )
+
+installdirs: $(srcdir)/support/mkdirs
+	-$(SHELL) $(srcdir)/support/mkdirs $(includedir) \
+		$(includedir)/readline $(libdir) $(infodir) $(man3dir)
+
+uninstall:
+	-test -n "$(includedir)" && cd $(includedir)/readline && \
+		${RM} ${INSTALLED_HEADERS}
+	-test -n "$(libdir)" && cd $(libdir) && \
+		${RM} libreadline.a libreadline.old libhistory.a libhistory.old $(SHARED_LIBS)
+
+install-shared: installdirs shared
+	-$(MV) $(libdir)/$(SHARED_HISTORY) $(libdir)/$(SHARED_HISTORY).old
+	$(INSTALL_DATA) $(SHARED_HISTORY) $(libdir)/$(SHARED_HISTORY)
+	-$(MV) $(libdir)/$(SHARED_READLINE) $(libdir)/$(SHARED_READLINE).old
+	$(INSTALL_DATA) $(SHARED_READLINE) $(libdir)/$(SHARED_READLINE)
+
+uninstall-shared:
+	-test -n "$(libdir)" && cd $(libdir) && ${RM} ${SHARED_LIBS}
+
+TAGS:	force
+	$(ETAGS) $(CSOURCES) $(HSOURCES)
+
+tags:	force
+	$(CTAGS) $(CSOURCES) $(HSOURCES)
+
+clean:	force
+	$(RM) $(OBJECTS) $(STATIC_LIBS)
+	$(RM) $(SHARED_OBJ) $(SHARED_LIBS)
+	-( cd doc && $(MAKE) $(MFLAGS) $@ )
+	-( cd examples && $(MAKE) $(MFLAGS) $@ )
+
+mostlyclean: clean
+	-( cd doc && $(MAKE) $(MFLAGS) $@ )
+	-( cd examples && $(MAKE) $(MFLAGS) $@ )
+
+distclean maintainer-clean: clean
+	-( cd doc && $(MAKE) $(MFLAGS) $@ )
+	-( cd examples && $(MAKE) $(MFLAGS) $@ )
+	$(RM) Makefile
+	$(RM) $(CREATED_CONFIGURE)
+	$(RM) $(CREATED_TAGS)
+
+info dvi:
+	-( cd doc && $(MAKE) $(MFLAGS) $@ )
+
+install-info:
+check:
+installcheck:
+
+dist:   force
+	@echo Readline distributions are created using $(srcdir)/support/mkdist.
+	@echo Here is a sample of the necessary commands:
+	@echo bash $(srcdir)/support/mkdist -m $(srcdir)/MANIFEST -s $(srcdir) -r $(RL_LIBRARY_NAME)-$(RL_LIBRARY_VERSION)
+	@echo tar cf $(RL_LIBRARY_NAME)-${RL_LIBRARY_VERSION}.tar ${RL_LIBRARY_NAME}-$(RL_LIBRARY_VERSION)
+	@echo gzip $(RL_LIBRARY_NAME)-$(RL_LIBRARY_VERSION).tar
+
+# Tell versions [3.59,3.63) of GNU make not to export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
+
+# Dependencies
+bind.o: ansi_stdlib.h posixstat.h
+bind.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+bind.o: readline.h keymaps.h chardefs.h tilde.h
+bind.o: history.h
+callback.o: rlconf.h
+callback.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+callback.o: readline.h keymaps.h chardefs.h tilde.h
+complete.o: ansi_stdlib.h posixdir.h posixstat.h
+complete.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+complete.o: readline.h keymaps.h chardefs.h tilde.h
+display.o: ansi_stdlib.h posixstat.h
+display.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+display.o: tcap.h
+display.o: readline.h keymaps.h chardefs.h tilde.h
+display.o: history.h
+funmap.o: readline.h keymaps.h chardefs.h tilde.h
+funmap.o: rlconf.h ansi_stdlib.h
+funmap.o: ${BUILD_DIR}/config.h
+histexpand.o: ansi_stdlib.h
+histexpand.o: history.h histlib.h
+histexpand.o: ${BUILD_DIR}/config.h
+histfile.o: ansi_stdlib.h
+histfile.o: history.h histlib.h
+histfile.o: ${BUILD_DIR}/config.h
+history.o: ansi_stdlib.h
+history.o: history.h histlib.h
+history.o: ${BUILD_DIR}/config.h
+histsearch.o: ansi_stdlib.h
+histsearch.o: history.h histlib.h
+histsearch.o: ${BUILD_DIR}/config.h
+input.o: ansi_stdlib.h
+input.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+input.o: readline.h keymaps.h chardefs.h tilde.h
+isearch.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+isearch.o: readline.h keymaps.h chardefs.h tilde.h
+isearch.o: ansi_stdlib.h history.h
+keymaps.o: emacs_keymap.c vi_keymap.c
+keymaps.o: keymaps.h chardefs.h rlconf.h ansi_stdlib.h
+keymaps.o: readline.h keymaps.h chardefs.h tilde.h
+keymaps.o: ${BUILD_DIR}/config.h
+kill.o: ansi_stdlib.h
+kill.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+kill.o: readline.h keymaps.h chardefs.h tilde.h
+kill.o: history.h
+macro.o: ansi_stdlib.h
+macro.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+macro.o: readline.h keymaps.h chardefs.h tilde.h
+macro.o: history.h
+nls.o: ansi_stdlib.h
+nls.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+parens.o: rlconf.h
+parens.o: ${BUILD_DIR}/config.h
+parens.o: readline.h keymaps.h chardefs.h tilde.h
+readline.o: readline.h keymaps.h chardefs.h tilde.h
+readline.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+readline.o: history.h
+readline.o: posixstat.h ansi_stdlib.h posixjmp.h
+rltty.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+rltty.o: rltty.h
+rltty.o: readline.h keymaps.h chardefs.h tilde.h
+search.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+search.o: readline.h keymaps.h chardefs.h tilde.h
+search.o: ansi_stdlib.h history.h
+shell.o: ${BUILD_DIR}/config.h
+shell.o: ansi_stdlib.h
+signals.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+signals.o: readline.h keymaps.h chardefs.h tilde.h
+signals.o: history.h
+terminal.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+terminal.o: tcap.h
+terminal.o: readline.h keymaps.h chardefs.h tilde.h
+terminal.o: history.h
+tilde.o: ansi_stdlib.h
+tilde.o: ${BUILD_DIR}/config.h
+tilde.o: tilde.h
+undo.o: ansi_stdlib.h
+undo.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+undo.o: readline.h keymaps.h chardefs.h tilde.h
+undo.o: history.h
+util.o: posixjmp.h ansi_stdlib.h
+util.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+util.o: readline.h keymaps.h chardefs.h tilde.h
+vi_mode.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+vi_mode.o: readline.h keymaps.h chardefs.h tilde.h
+vi_mode.o: history.h ansi_stdlib.h
+xmalloc.o: ${BUILD_DIR}/config.h
+xmalloc.o: ansi_stdlib.h
+
+readline.o: $(srcdir)/readline.c
+vi_mode.o: $(srcdir)/vi_mode.c
+funmap.o: $(srcdir)/funmap.c
+keymaps.o: $(srcdir)/keymaps.c
+parens.o: $(srcdir)/parens.c
+search.o: $(srcdir)/search.c
+rltty.o: $(srcdir)/rltty.c
+complete.o: $(srcdir)/complete.c
+bind.o: $(srcdir)/bind.c
+isearch.o: $(srcdir)/isearch.c
+display.o: $(srcdir)/display.c
+signals.o: $(srcdir)/signals.c
+util.o: $(srcdir)/util.c
+kill.o: $(srcdir)/kill.c
+undo.o: $(srcdir)/undo.c
+macro.o: $(srcdir)/macro.c
+input.o: $(srcdir)/input.c
+callback.o: $(srcdir)/callback.c
+terminal.o: $(srcdir)/terminal.c
+nls.o: $(srcdir)/nls.c
+xmalloc.o: $(srcdir)/xmalloc.c
+history.o: $(srcdir)/history.c
+histexpand.o: $(srcdir)/histexpand.c
+histfile.o: $(srcdir)/histfile.c
+histsearch.o: $(srcdir)/histsearch.c
+shell.o: $(srcdir)/shell.c
+tilde.o: $(srcdir)/tilde.c
+
+bind.so: ansi_stdlib.h posixstat.h
+bind.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+bind.so: readline.h keymaps.h chardefs.h tilde.h
+bind.so: history.h
+callback.so: rlconf.h
+callback.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+callback.so: readline.h keymaps.h chardefs.h tilde.h
+complete.so: ansi_stdlib.h posixdir.h posixstat.h
+complete.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+complete.so: readline.h keymaps.h chardefs.h tilde.h
+display.so: ansi_stdlib.h posixstat.h
+display.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+display.so: tcap.h
+display.so: readline.h keymaps.h chardefs.h tilde.h
+display.so: history.h
+funmap.so: readline.h keymaps.h chardefs.h tilde.h
+funmap.so: rlconf.h ansi_stdlib.h
+funmap.so: ${BUILD_DIR}/config.h
+histexpand.so: ansi_stdlib.h
+histexpand.so: history.h histlib.h
+histexpand.so: ${BUILD_DIR}/config.h
+histfile.so: ansi_stdlib.h
+histfile.so: history.h histlib.h
+histfile.so: ${BUILD_DIR}/config.h
+history.so: ansi_stdlib.h
+history.so: history.h histlib.h
+history.so: ${BUILD_DIR}/config.h
+histsearch.so: ansi_stdlib.h
+histsearch.so: history.h histlib.h
+histsearch.so: ${BUILD_DIR}/config.h
+input.so: ansi_stdlib.h
+input.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+input.so: readline.h keymaps.h chardefs.h tilde.h
+isearch.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+isearch.so: readline.h keymaps.h chardefs.h tilde.h
+isearch.so: ansi_stdlib.h history.h
+keymaps.so: emacs_keymap.c vi_keymap.c
+keymaps.so: keymaps.h chardefs.h rlconf.h ansi_stdlib.h
+keymaps.so: readline.h keymaps.h chardefs.h tilde.h
+keymaps.so: ${BUILD_DIR}/config.h
+kill.so: ansi_stdlib.h
+kill.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+kill.so: readline.h keymaps.h chardefs.h tilde.h
+kill.so: history.h
+macro.so: ansi_stdlib.h
+macro.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+macro.so: readline.h keymaps.h chardefs.h tilde.h
+macro.so: history.h
+nls.so: ansi_stdlib.h
+nls.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+parens.so: rlconf.h
+parens.so: ${BUILD_DIR}/config.h
+parens.so: readline.h keymaps.h chardefs.h tilde.h
+readline.so: readline.h keymaps.h chardefs.h tilde.h
+readline.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+readline.so: history.h
+readline.so: posixstat.h ansi_stdlib.h posixjmp.h
+rltty.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+rltty.so: rltty.h
+rltty.so: readline.h keymaps.h chardefs.h tilde.h
+search.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+search.so: readline.h keymaps.h chardefs.h tilde.h
+search.so: ansi_stdlib.h history.h
+signals.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+signals.so: readline.h keymaps.h chardefs.h tilde.h
+signals.so: history.h
+terminal.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+terminal.so: tcap.h
+terminal.so: readline.h keymaps.h chardefs.h tilde.h
+terminal.so: history.h
+tilde.so: ansi_stdlib.h
+tilde.so: ${BUILD_DIR}/config.h
+tilde.so: tilde.h
+undo.so: ansi_stdlib.h
+undo.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+undo.so: readline.h keymaps.h chardefs.h tilde.h
+undo.so: history.h
+util.so: posixjmp.h ansi_stdlib.h
+util.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+util.so: readline.h keymaps.h chardefs.h tilde.h
+vi_mode.so: rldefs.h ${BUILD_DIR}/config.h rlconf.h
+vi_mode.so: readline.h keymaps.h chardefs.h tilde.h
+vi_mode.so: history.h ansi_stdlib.h
+xmalloc.so: ${BUILD_DIR}/config.h
+xmalloc.so: ansi_stdlib.h
+
+readline.o: readline.c
+vi_mode.o: vi_mode.c
+funmap.o: funmap.c
+keymaps.o: keymaps.c
+parens.o: parens.c
+search.o: search.c
+rltty.o: rltty.c
+complete.o: complete.c
+bind.o: bind.c
+isearch.o: isearch.c
+display.o: display.c
+signals.o: signals.c
+util.o: util.c
+kill.o: kill.c
+undo.o: undo.c
+macro.o: macro.c
+input.o: input.c
+callback.o: callback.c
+terminal.o: terminal.c
+nls.o: nls.c
+xmalloc.o: xmalloc.c
+history.o: history.c
+histexpand.o: histexpand.c
+histfile.o: histfile.c
+histsearch.o: histsearch.c
+shell.o: shell.c
+tilde.o: tilde.c
+
+readline.so: $(srcdir)/readline.c
+vi_mode.so: $(srcdir)/vi_mode.c
+funmap.so: $(srcdir)/funmap.c
+keymaps.so: $(srcdir)/keymaps.c
+parens.so: $(srcdir)/parens.c
+search.so: $(srcdir)/search.c
+rltty.so: $(srcdir)/rltty.c
+complete.so: $(srcdir)/complete.c
+bind.so: $(srcdir)/bind.c
+isearch.so: $(srcdir)/isearch.c
+display.so: $(srcdir)/display.c
+signals.so: $(srcdir)/signals.c
+util.so: $(srcdir)/util.c
+kill.so: $(srcdir)/kill.c
+undo.so: $(srcdir)/undo.c
+macro.so: $(srcdir)/macro.c
+input.so: $(srcdir)/input.c
+callback.so: $(srcdir)/callback.c
+terminal.so: $(srcdir)/terminal.c
+nls.so: $(srcdir)/nls.c
+xmalloc.so: $(srcdir)/xmalloc.c
+history.so: $(srcdir)/history.c
+histexpand.so: $(srcdir)/histexpand.c
+histfile.so: $(srcdir)/histfile.c
+histsearch.so: $(srcdir)/histsearch.c
+shell.so: $(srcdir)/shell.c
+tilde.so: $(srcdir)/tilde.c
+
+readline.so: readline.c
+vi_mode.so: vi_mode.c
+funmap.so: funmap.c
+keymaps.so: keymaps.c
+parens.so: parens.c
+search.so: search.c
+rltty.so: rltty.c
+complete.so: complete.c
+bind.so: bind.c
+isearch.so: isearch.c
+display.so: display.c
+signals.so: signals.c
+util.so: util.c
+kill.so: kill.c
+undo.so: undo.c
+macro.so: macro.c
+input.so: input.c
+callback.so: callback.c
+terminal.so: terminal.c
+nls.so: nls.c
+xmalloc.so: xmalloc.c
+history.so: history.c
+histexpand.so: histexpand.c
+histfile.so: histfile.c
+histsearch.so: histsearch.c
+shell.so: shell.c
+tilde.so: tilde.c
diff --git a/readline/README b/readline/README
new file mode 100644
index 00000000000..f19f92560a5
--- /dev/null
+++ b/readline/README
@@ -0,0 +1,112 @@
+Introduction
+============
+
+This is the Gnu Readline library, version 2.2
+
+The Readline library provides a set of functions for use by applications
+that allow users to edit command lines as they are typed in.  Both
+Emacs and vi editing modes are available.  The Readline library includes
+additional functions to maintain a list of previously-entered command
+lines, to recall and perhaps reedit those lines, and perform csh-like
+history expansion on previous commands.
+
+The history facilites are also placed into a separate library, the
+History library, as part of the build process.  The History library
+may be used without Readline in applications which desire its
+capabilities.
+
+The Readline library is free software, distributed under the terms of
+the GNU Public License, version 2.  For more information, see the file
+COPYING.
+
+To build the library, try typing `./configure', then `make'.  The
+configuration process is automated, so no further intervention should
+be necessary.  Readline builds with `gcc' by default if it is
+available.  If you want to use `cc' instead, type
+
+        CC=cc ./configure
+
+if you are using a Bourne-style shell.  If you are not, the following
+may work:
+
+        env CC=cc ./configure
+
+Read the file INSTALL in this directory for more information about how
+to customize and control the build process.
+
+The file rlconf.h contains defines that enable and disable certain
+Readline features.
+
+Examples
+========
+
+There are several example programs that use Readline features in the
+examples directory.  The `rl' program is of particular interest.  It
+is a command-line interface to Readline, suitable for use in shell
+scripts in place of `read'.
+
+Shared Libraries
+================
+
+There is skeletal support for building shared versions of the
+Readline and History libraries.
+
+Typing `make shared' will cause shared versions of the Readline and
+History libraries to be built on SunOS 4.1.x.  For versions of Unix
+other than SunOS, you will have to make some changes to Makefile.in.
+The relevant variables are:
+
+PICFLAG		Options to give to the compiler to produce position-independent
+		code.  The value `-fpic' works for most versions of gcc.
+SHLIB_OPTS	Options to give to the linker to produce a shared library.
+		The value `-assert pure-text -ldl' works on SunOS 4.1.x.
+		The value `-Bshareable' works for some versions of GNU ld.
+
+MAJOR		The major version number of the shared library.  You should
+		not need to change this.
+MINOR		The minor version number of the shared library.  Some systems,
+		such as SVR4 and its descendents (e.g., Solaris, Unixware),
+		do not use minor version numbers.  For those systems, this
+		variable should be left unset.
+
+LD		The linker.  The value of `ld' is correct for SunOS 4.1.x.
+		You may need to change it to `gcc'; make sure to change
+		SHLIB_OPTS if you do so.
+
+Once you have edited Makefile.in, type `make Makefile' to rebuild the
+Makefile, then `make shared' to build the shared libraries.
+
+Documentation
+=============
+
+The documentation for the Readline and History libraries appears in the
+`doc' subdirectory.  There are two texinfo files and a Unix-style manual
+page describing the programming facilities available in the Readline
+library.  The texinfo files include both user and programmer's manuals.
+
+Reporting Bugs
+==============
+
+Bug reports for Readline should be sent to:
+
+        bug-readline@gnu.org
+
+When reporting a bug, please include the following information:
+
+        * the version number and release status of Readline (e.g., 2.2-release)
+        * the machine and OS that it is running on
+        * a list of the compilation flags or the contents of `config.h', if
+          appropriate
+        * a description of the bug
+        * a recipe for recreating the bug reliably
+        * a fix for the bug if you have one!
+
+If you would like to contact the Readline maintainer directly, send mail
+to bash-maintainers@gnu.org.
+
+Since Readline is developed along with bash, the bug-bash@gnu.org mailing
+list (mirrored to the Usenet newsgroup gnu.bash.bug) often contains
+Readline bug reports and fixes. 
+
+Chet Ramey
+chet@po.cwru.edu
diff --git a/readline/acconfig.h b/readline/acconfig.h
new file mode 100644
index 00000000000..b41ac519285
--- /dev/null
+++ b/readline/acconfig.h
@@ -0,0 +1,56 @@
+/* acconfig.h
+   This file is in the public domain.
+
+   Descriptive text for the C preprocessor macros that
+   the distributed Autoconf macros can define.
+   No software package will use all of them; autoheader copies the ones
+   your configure.in uses into your configuration header file templates.
+
+   The entries are in sort -df order: alphabetical, case insensitive,
+   ignoring punctuation (such as underscores).  Although this order
+   can split up related entries, it makes it easier to check whether
+   a given entry is in the file.
+
+   Leave the following blank line there!!  Autoheader needs it.  */
+
+
+/* Definitions pulled in from aclocal.m4. */
+#undef VOID_SIGHANDLER
+
+#undef TIOCGWINSZ_IN_SYS_IOCTL
+
+#undef TIOCSTAT_IN_SYS_IOCTL
+
+#undef HAVE_GETPW_DECLS
+
+#undef FIONREAD_IN_SYS_IOCTL
+
+#undef HAVE_BSD_SIGNALS
+
+#undef HAVE_LSTAT
+
+#undef HAVE_POSIX_SIGNALS
+
+#undef HAVE_POSIX_SIGSETJMP
+
+#undef HAVE_USG_SIGHOLD
+
+#undef MUST_REINSTALL_SIGHANDLERS
+
+#undef SPEED_T_IN_SYS_TYPES
+
+#undef STRCOLL_BROKEN
+
+#undef STRUCT_DIRENT_HAS_D_FILENO
+
+#undef STRUCT_DIRENT_HAS_D_INO
+
+#undef STRUCT_WINSIZE_IN_SYS_IOCTL
+
+#undef STRUCT_WINSIZE_IN_TERMIOS
+
+
+/* Leave that blank line there!!  Autoheader needs it.
+   If you're adding to this file, keep in mind:
+   The entries are in sort -df order: alphabetical, case insensitive,
+   ignoring punctuation (such as underscores).  */
diff --git a/readline/aclocal.m4 b/readline/aclocal.m4
new file mode 100644
index 00000000000..822ead0ee84
--- /dev/null
+++ b/readline/aclocal.m4
@@ -0,0 +1,1344 @@
+dnl
+dnl Bash specific tests
+dnl
+dnl Some derived from PDKSH 5.1.3 autoconf tests
+dnl
+dnl
+dnl Check if dup2() does not clear the close on exec flag
+dnl
+AC_DEFUN(BASH_DUP2_CLOEXEC_CHECK,
+[AC_MSG_CHECKING(if dup2 fails to clear the close-on-exec flag)
+AC_CACHE_VAL(bash_cv_dup2_broken,
+[AC_TRY_RUN([
+#include <sys/types.h>
+#include <fcntl.h>
+main()
+{
+  int fd1, fd2, fl;
+  fd1 = open("/dev/null", 2);
+  if (fcntl(fd1, 2, 1) < 0)
+    exit(1);
+  fd2 = dup2(fd1, 1);
+  if (fd2 < 0)
+    exit(2);
+  fl = fcntl(fd2, 1, 0);
+  /* fl will be 1 if dup2 did not reset the close-on-exec flag. */
+  exit(fl != 1);
+}
+], bash_cv_dup2_broken=yes, bash_cv_dup2_broken=no,
+    [AC_MSG_ERROR(cannot check dup2 if cross compiling -- defaulting to no)
+     bash_cv_dup2_broken=no])
+])
+AC_MSG_RESULT($bash_cv_dup2_broken)
+if test $bash_cv_dup2_broken = yes; then
+AC_DEFINE(DUP2_BROKEN)
+fi
+])
+
+dnl Check type of signal routines (posix, 4.2bsd, 4.1bsd or v7)
+AC_DEFUN(BASH_SIGNAL_CHECK,
+[AC_REQUIRE([AC_TYPE_SIGNAL])
+AC_MSG_CHECKING(for type of signal functions)
+AC_CACHE_VAL(bash_cv_signal_vintage,
+[
+  AC_TRY_LINK([#include <signal.h>],[
+    sigset_t ss;
+    struct sigaction sa;
+    sigemptyset(&ss); sigsuspend(&ss);
+    sigaction(SIGINT, &sa, (struct sigaction *) 0);
+    sigprocmask(SIG_BLOCK, &ss, (sigset_t *) 0);
+  ], bash_cv_signal_vintage=posix,
+  [
+    AC_TRY_LINK([#include <signal.h>], [
+	int mask = sigmask(SIGINT);
+	sigsetmask(mask); sigblock(mask); sigpause(mask);
+    ], bash_cv_signal_vintage=4.2bsd,
+    [
+      AC_TRY_LINK([
+	#include <signal.h>
+	RETSIGTYPE foo() { }], [
+		int mask = sigmask(SIGINT);
+		sigset(SIGINT, foo); sigrelse(SIGINT);
+		sighold(SIGINT); sigpause(SIGINT);
+        ], bash_cv_signal_vintage=svr3, bash_cv_signal_vintage=v7
+    )]
+  )]
+)
+])
+AC_MSG_RESULT($bash_cv_signal_vintage)
+if test "$bash_cv_signal_vintage" = posix; then
+AC_DEFINE(HAVE_POSIX_SIGNALS)
+elif test "$bash_cv_signal_vintage" = "4.2bsd"; then
+AC_DEFINE(HAVE_BSD_SIGNALS)
+elif test "$bash_cv_signal_vintage" = svr3; then
+AC_DEFINE(HAVE_USG_SIGHOLD)
+fi
+])
+
+dnl Check if the pgrp of setpgrp() can't be the pid of a zombie process.
+AC_DEFUN(BASH_PGRP_SYNC,
+[AC_REQUIRE([AC_FUNC_GETPGRP])
+AC_MSG_CHECKING(whether pgrps need synchronization)
+AC_CACHE_VAL(bash_cv_pgrp_pipe,
+[AC_TRY_RUN([
+#ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+#endif
+main()
+{
+# ifdef GETPGRP_VOID
+#  define getpgID()	getpgrp()
+# else
+#  define getpgID()	getpgrp(0)
+#  define setpgid(x,y)	setpgrp(x,y)
+# endif
+	int pid1, pid2, fds[2];
+	int status;
+	char ok;
+
+	switch (pid1 = fork()) {
+	  case -1:
+	    exit(1);
+	  case 0:
+	    setpgid(0, getpid());
+	    exit(0);
+	}
+	setpgid(pid1, pid1);
+
+	sleep(2);	/* let first child die */
+
+	if (pipe(fds) < 0)
+	  exit(2);
+
+	switch (pid2 = fork()) {
+	  case -1:
+	    exit(3);
+	  case 0:
+	    setpgid(0, pid1);
+	    ok = getpgID() == pid1;
+	    write(fds[1], &ok, 1);
+	    exit(0);
+	}
+	setpgid(pid2, pid1);
+
+	close(fds[1]);
+	if (read(fds[0], &ok, 1) != 1)
+	  exit(4);
+	wait(&status);
+	wait(&status);
+	exit(ok ? 0 : 5);
+}
+], bash_cv_pgrp_pipe=no,bash_cv_pgrp_pipe=yes,
+   [AC_MSG_ERROR(cannot check pgrp synchronization if cross compiling -- defaulting to no)
+    bash_cv_pgrp_pipe=no])
+])
+AC_MSG_RESULT($bash_cv_pgrp_pipe)
+if test $bash_cv_pgrp_pipe = yes; then
+AC_DEFINE(PGRP_PIPE)
+fi
+])
+
+dnl
+dnl check for typedef'd symbols in header files, but allow the caller to
+dnl specify the include files to be checked in addition to the default
+dnl 
+dnl BASH_CHECK_TYPE(TYPE, HEADERS, DEFAULT[, VALUE-IF-FOUND])
+AC_DEFUN(BASH_CHECK_TYPE,
+[AC_REQUIRE([AC_HEADER_STDC])dnl
+AC_MSG_CHECKING(for $1)
+AC_CACHE_VAL(bash_cv_type_$1,
+[AC_EGREP_CPP($1, [#include <sys/types.h>
+#if STDC_HEADERS
+#include <stdlib.h>
+#endif
+$2
+], bash_cv_type_$1=yes, bash_cv_type_$1=no)])
+AC_MSG_RESULT($bash_cv_type_$1)
+ifelse($#, 4, [if test $bash_cv_type_$1 = yes; then
+	AC_DEFINE($4)
+	fi])
+if test $bash_cv_type_$1 = no; then
+  AC_DEFINE($1, $3)
+fi
+])
+
+dnl
+dnl Type of struct rlimit fields: some systems (OSF/1, NetBSD, RISC/os 5.0)
+dnl have a rlim_t, others (4.4BSD based systems) use quad_t, others use
+dnl long and still others use int (HP-UX 9.01, SunOS 4.1.3).  To simplify
+dnl matters, this just checks for rlim_t, quad_t, or long.
+dnl
+AC_DEFUN(BASH_RLIMIT_TYPE,
+[AC_MSG_CHECKING(for size and type of struct rlimit fields)
+AC_CACHE_VAL(bash_cv_type_rlimit,
+[AC_TRY_COMPILE([#include <sys/types.h>
+#include <sys/resource.h>],
+[rlim_t xxx;], bash_cv_type_rlimit=rlim_t,[
+AC_TRY_RUN([
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+main()
+{
+#ifdef HAVE_QUAD_T
+  struct rlimit rl;
+  if (sizeof(rl.rlim_cur) == sizeof(quad_t))
+    exit(0);
+#endif
+  exit(1);
+}], bash_cv_type_rlimit=quad_t, bash_cv_type_rlimit=long,
+        [AC_MSG_ERROR(cannot check quad_t if cross compiling -- defaulting to long)
+         bash_cv_type_rlimit=long])])
+])
+AC_MSG_RESULT($bash_cv_type_rlimit)
+if test $bash_cv_type_rlimit = quad_t; then
+AC_DEFINE(RLIMTYPE, quad_t)
+elif test $bash_cv_type_rlimit = rlim_t; then
+AC_DEFINE(RLIMTYPE, rlim_t)
+fi
+])
+
+dnl
+dnl Check for sys_siglist[] or _sys_siglist[]
+dnl
+AC_DEFUN(BASH_DECL_UNDER_SYS_SIGLIST,
+[AC_MSG_CHECKING([for _sys_siglist in signal.h or unistd.h])
+AC_CACHE_VAL(bash_cv_decl_under_sys_siglist,
+[AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <signal.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif], [ char *msg = _sys_siglist[2]; ],
+  bash_cv_decl_under_sys_siglist=yes, bash_cv_decl_under_sys_siglist=no,
+  [AC_MSG_ERROR(cannot check for _sys_siglist[] if cross compiling -- defaulting to no)])])dnl
+AC_MSG_RESULT($bash_cv_decl_under_sys_siglist)
+if test $bash_cv_decl_under_sys_siglist = yes; then
+AC_DEFINE(UNDER_SYS_SIGLIST_DECLARED)
+fi
+])
+
+AC_DEFUN(BASH_UNDER_SYS_SIGLIST,
+[AC_REQUIRE([BASH_DECL_UNDER_SYS_SIGLIST])
+AC_MSG_CHECKING([for _sys_siglist in system C library])
+AC_CACHE_VAL(bash_cv_under_sys_siglist,
+[AC_TRY_RUN([
+#include <sys/types.h>
+#include <signal.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifndef UNDER_SYS_SIGLIST_DECLARED
+extern char *_sys_siglist[];
+#endif
+main()
+{
+char *msg = (char *)_sys_siglist[2];
+exit(msg == 0);
+}],
+	bash_cv_under_sys_siglist=yes, bash_cv_under_sys_siglist=no,
+	[AC_MSG_ERROR(cannot check for _sys_siglist[] if cross compiling -- defaulting to no)
+	 bash_cv_under_sys_siglist=no])])
+AC_MSG_RESULT($bash_cv_under_sys_siglist)
+if test $bash_cv_under_sys_siglist = yes; then
+AC_DEFINE(HAVE_UNDER_SYS_SIGLIST)
+fi
+])
+
+AC_DEFUN(BASH_SYS_SIGLIST,
+[AC_REQUIRE([AC_DECL_SYS_SIGLIST])
+AC_MSG_CHECKING([for sys_siglist in system C library])
+AC_CACHE_VAL(bash_cv_sys_siglist,
+[AC_TRY_RUN([
+#include <sys/types.h>
+#include <signal.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifndef SYS_SIGLIST_DECLARED
+extern char *sys_siglist[];
+#endif
+main()
+{
+char *msg = sys_siglist[2];
+exit(msg == 0);
+}],
+	bash_cv_sys_siglist=yes, bash_cv_sys_siglist=no,
+	[AC_MSG_ERROR(cannot check for sys_siglist if cross compiling -- defaulting to no)
+	 bash_cv_sys_siglist=no])])
+AC_MSG_RESULT($bash_cv_sys_siglist)
+if test $bash_cv_sys_siglist = yes; then
+AC_DEFINE(HAVE_SYS_SIGLIST)
+fi
+])
+
+dnl Check for sys_errlist[] and sys_nerr, check for declaration
+AC_DEFUN(BASH_SYS_ERRLIST,
+[AC_MSG_CHECKING([for sys_errlist and sys_nerr])
+AC_CACHE_VAL(bash_cv_sys_errlist,
+[AC_TRY_LINK([#include <errno.h>],
+[extern char *sys_errlist[];
+ extern int sys_nerr;
+ char *msg = sys_errlist[sys_nerr - 1];],
+    bash_cv_sys_errlist=yes, bash_cv_sys_errlist=no)])dnl
+AC_MSG_RESULT($bash_cv_sys_errlist)
+if test $bash_cv_sys_errlist = yes; then
+AC_DEFINE(HAVE_SYS_ERRLIST)
+fi
+])
+
+dnl Check to see if opendir will open non-directories (not a nice thing)
+AC_DEFUN(BASH_FUNC_OPENDIR_CHECK,
+[AC_REQUIRE([AC_HEADER_DIRENT])dnl
+AC_MSG_CHECKING(if opendir() opens non-directories)
+AC_CACHE_VAL(bash_cv_opendir_not_robust,
+[AC_TRY_RUN([
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+#if defined(HAVE_DIRENT_H)
+# include <dirent.h>
+#else
+# define dirent direct
+# ifdef HAVE_SYS_NDIR_H
+#  include <sys/ndir.h>
+# endif /* SYSNDIR */
+# ifdef HAVE_SYS_DIR_H
+#  include <sys/dir.h>
+# endif /* SYSDIR */
+# ifdef HAVE_NDIR_H
+#  include <ndir.h>
+# endif
+#endif /* HAVE_DIRENT_H */
+main()
+{
+DIR *dir;
+int fd;
+unlink("/tmp/not_a_directory");
+fd = open("/tmp/not_a_directory", O_WRONLY|O_CREAT, 0666);
+write(fd, "\n", 1);
+close(fd);
+dir = opendir("/tmp/not_a_directory");
+unlink("/tmp/not_a_directory");
+exit (dir == 0);
+}], bash_cv_opendir_not_robust=yes,bash_cv_opendir_not_robust=no,
+    [AC_MSG_ERROR(cannot check opendir if cross compiling -- defaulting to no)
+     bash_cv_opendir_not_robust=no]
+)])
+AC_MSG_RESULT($bash_cv_opendir_not_robust)
+if test $bash_cv_opendir_not_robust = yes; then
+AC_DEFINE(OPENDIR_NOT_ROBUST)
+fi
+])
+
+dnl
+AC_DEFUN(BASH_TYPE_SIGHANDLER,
+[AC_MSG_CHECKING([whether signal handlers are of type void])
+AC_CACHE_VAL(bash_cv_void_sighandler,
+[AC_TRY_COMPILE([#include <sys/types.h>
+#include <signal.h>
+#ifdef signal
+#undef signal
+#endif
+#ifdef __cplusplus
+extern "C"
+#endif
+void (*signal ()) ();],
+[int i;], bash_cv_void_sighandler=yes, bash_cv_void_sighandler=no)])dnl
+AC_MSG_RESULT($bash_cv_void_sighandler)
+if test $bash_cv_void_sighandler = yes; then
+AC_DEFINE(VOID_SIGHANDLER)
+fi
+])
+
+AC_DEFUN(BASH_TYPE_INT32_T,
+[
+if test "X$bash_cv_type_int32_t" = "X"; then
+_bash_needmsg=yes
+else
+AC_MSG_CHECKING(which builtin C type is 32 bits wide)
+_bash_needmsg=
+fi
+AC_CACHE_VAL(bash_cv_type_int32_t,
+[AC_TRY_RUN([
+main()
+{
+#if SIZEOF_INT == 4
+exit (0);
+#else
+#  if SIZEOF_LONG == 4
+exit (1);
+#  else
+#    error cannot find 32 bit type...
+#  endif
+#endif
+}], bash_cv_type_int32_t=int, bash_cv_type_int32_t=long,
+    [AC_MSG_ERROR(cannot check type sizes if cross-compiling -- defaulting to int)
+     bash_cv_type_int32_t=int]
+)])
+if test "X$_bash_needmsg" = "Xyes"; then
+AC_MSG_CHECKING(which builtin C type is 32 bits wide)
+fi
+AC_MSG_RESULT($bash_cv_type_int32_t);
+if test "$bash_cv_type_int32_t" = "int"; then
+AC_DEFINE(int32_t, int)
+else
+AC_DEFINE(int32_t, long)
+fi
+])
+
+AC_DEFUN(BASH_TYPE_U_INT32_T,
+[
+if test "X$bash_cv_type_u_int32_t" = "X"; then
+_bash_needmsg=yes
+else
+AC_MSG_CHECKING(which unsigned builtin C type is 32 bits wide)
+_bash_needmsg=
+fi
+AC_CACHE_VAL(bash_cv_type_u_int32_t,
+[AC_TRY_RUN([
+main()
+{
+#if SIZEOF_INT == 4
+exit (0);
+#else
+#  if SIZEOF_LONG == 4
+exit (1);
+#  else
+#    error cannot find 32 bit type...
+#  endif
+#endif
+}], bash_cv_type_u_int32_t=int, bash_cv_type_u_int32_t=long,
+    [AC_MSG_ERROR(cannot check type sizes if cross-compiling -- defaulting to int)
+     bash_cv_type_u_int32_t=int]
+)])
+if test "X$_bash_needmsg" = "Xyes"; then
+AC_MSG_CHECKING(which unsigned builtin C type is 32 bits wide)
+fi
+AC_MSG_RESULT($bash_cv_type_u_int32_t);
+if test "$bash_cv_type_u_int32_t" = "int"; then
+AC_DEFINE(u_int32_t, unsigned int)
+else
+AC_DEFINE(u_int32_t, unsigned long)
+fi
+])
+
+AC_DEFUN(BASH_TYPE_PTRDIFF_T,
+[
+if test "X$bash_cv_type_ptrdiff_t" = "X"; then
+_bash_needmsg=yes
+else
+AC_MSG_CHECKING(which builtin C type is correct for ptrdiff_t)
+_bash_needmsg=
+fi
+AC_CACHE_VAL(bash_cv_type_ptrdiff_t,
+[AC_TRY_RUN([
+main()
+{
+#if SIZEOF_CHAR_P == SIZEOF_INT
+exit (0);
+#else
+#  if SIZEOF_CHAR_P == SIZEOF_LONG
+exit (1);
+#  else
+#    error cannot find type for pointer arithmetic...
+#  endif
+#endif
+}], bash_cv_type_ptrdiff_t=int, bash_cv_type_ptrdiff_t=long,
+    [AC_MSG_ERROR(cannot check type sizes if cross-compiling -- defaulting to int)
+     bash_cv_type_ptrdiff_t=int]
+)])
+if test "X$_bash_needmsg" = "Xyes"; then
+AC_MSG_CHECKING(which builtin C type is correct for ptrdiff_t)
+fi
+AC_MSG_RESULT($bash_cv_type_ptrdiff_t);
+if test "$bash_cv_type_ptrdiff_t" = "int"; then
+AC_DEFINE(ptrdiff_t, int)
+else
+AC_DEFINE(ptrdiff_t, long)
+fi
+])
+
+AC_DEFUN(BASH_FUNC_STRSIGNAL,
+[AC_MSG_CHECKING([for the existence of strsignal])
+AC_CACHE_VAL(bash_cv_have_strsignal,
+[AC_TRY_LINK([#include <sys/types.h>
+#include <signal.h>],
+[char *s = (char *)strsignal(2);],
+ bash_cv_have_strsignal=yes, bash_cv_have_strsignal=no)])
+AC_MSG_RESULT($bash_cv_have_strsignal)
+if test $bash_cv_have_strsignal = yes; then
+AC_DEFINE(HAVE_STRSIGNAL)
+fi
+])
+
+AC_DEFUN(BASH_FUNC_LSTAT,
+[dnl Cannot use AC_CHECK_FUNCS(lstat) because Linux defines lstat() as an
+dnl inline function in <sys/stat.h>.
+AC_CACHE_CHECK([for lstat], bash_cv_func_lstat,
+[AC_TRY_LINK([
+#include <sys/types.h>
+#include <sys/stat.h>
+],[ lstat(".",(struct stat *)0); ],
+bash_cv_func_lstat=yes, bash_cv_func_lstat=no)])
+if test $bash_cv_func_lstat = yes; then
+  AC_DEFINE(HAVE_LSTAT)
+fi
+])
+
+AC_DEFUN(BASH_STRUCT_TERMIOS_LDISC,
+[AC_MSG_CHECKING([for a c_line member of struct termios])
+AC_CACHE_VAL(bash_cv_termios_ldisc,
+[AC_TRY_COMPILE([#include <sys/types.h>
+#include <termios.h>],[struct termios t; int i; i = t.c_line;],
+  bash_cv_termios_ldisc=yes, bash_cv_termios_ldisc=no)])dnl
+AC_MSG_RESULT($bash_cv_termios_ldisc)
+if test $bash_cv_termios_ldisc = yes; then
+AC_DEFINE(TERMIOS_LDISC)
+fi
+])
+
+AC_DEFUN(BASH_STRUCT_TERMIO_LDISC,
+[AC_MSG_CHECKING([for a c_line member of struct termio])
+AC_CACHE_VAL(bash_cv_termio_ldisc,
+[AC_TRY_COMPILE([#include <sys/types.h>
+#include <termio.h>],[struct termio t; int i; i = t.c_line;],
+  bash_cv_termio_ldisc=yes, bash_cv_termio_ldisc=no)])dnl
+AC_MSG_RESULT($bash_cv_termio_ldisc)
+if test $bash_cv_termio_ldisc = yes; then
+AC_DEFINE(TERMIO_LDISC)
+fi
+])
+
+AC_DEFUN(BASH_FUNC_GETENV,
+[AC_MSG_CHECKING(to see if getenv can be redefined)
+AC_CACHE_VAL(bash_cv_getenv_redef,
+[AC_TRY_RUN([
+#ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+#endif
+#ifndef __STDC__
+#  ifndef const
+#    define const
+#  endif
+#endif
+char *
+getenv (name)
+#if defined (__linux__) || defined (__bsdi__) || defined (convex)
+     const char *name;
+#else
+     char const *name;
+#endif /* !__linux__ && !__bsdi__ && !convex */
+{
+return "42";
+}
+main()
+{
+char *s;
+/* The next allows this program to run, but does not allow bash to link
+   when it redefines getenv.  I'm not really interested in figuring out
+   why not. */
+#if defined (NeXT)
+exit(1);
+#endif
+s = getenv("ABCDE");
+exit(s == 0);	/* force optimizer to leave getenv in */
+}
+], bash_cv_getenv_redef=yes, bash_cv_getenv_redef=no,
+   [AC_MSG_ERROR(cannot check getenv redefinition if cross compiling -- defaulting to yes)
+    bash_cv_getenv_redef=yes]
+)])
+AC_MSG_RESULT($bash_cv_getenv_redef)
+if test $bash_cv_getenv_redef = yes; then
+AC_DEFINE(CAN_REDEFINE_GETENV)
+fi
+])
+
+AC_DEFUN(BASH_FUNC_PRINTF,
+[AC_MSG_CHECKING(for declaration of printf in <stdio.h>)
+AC_CACHE_VAL(bash_cv_printf_declared,
+[AC_TRY_RUN([
+#include <stdio.h>
+#ifdef __STDC__
+typedef int (*_bashfunc)(const char *, ...);
+#else
+typedef int (*_bashfunc)();
+#endif
+main()
+{
+_bashfunc pf;
+pf = (_bashfunc) printf;
+exit(pf == 0);
+}
+], bash_cv_printf_declared=yes, bash_cv_printf_declared=no,
+   [AC_MSG_ERROR(cannot check printf declaration if cross compiling -- defaulting to yes)
+    bash_cv_printf_declared=yes]
+)])
+AC_MSG_RESULT($bash_cv_printf_declared)
+if test $bash_cv_printf_declared = yes; then
+AC_DEFINE(PRINTF_DECLARED)
+fi
+])
+
+AC_DEFUN(BASH_FUNC_ULIMIT_MAXFDS,
+[AC_MSG_CHECKING(whether ulimit can substitute for getdtablesize)
+AC_CACHE_VAL(bash_cv_ulimit_maxfds,
+[AC_TRY_RUN([
+main()
+{
+long maxfds = ulimit(4, 0L);
+exit (maxfds == -1L);
+}
+], bash_cv_ulimit_maxfds=yes, bash_cv_ulimit_maxfds=no,
+   [AC_MSG_ERROR(cannot check ulimit if cross compiling -- defaulting to no)
+    bash_cv_ulimit_maxfds=no]
+)])
+AC_MSG_RESULT($bash_cv_ulimit_maxfds)
+if test $bash_cv_ulimit_maxfds = yes; then
+AC_DEFINE(ULIMIT_MAXFDS)
+fi
+])
+
+AC_DEFUN(BASH_CHECK_LIB_TERMCAP,
+[
+if test "X$bash_cv_termcap_lib" = "X"; then
+_bash_needmsg=yes
+else
+AC_MSG_CHECKING(which library has the termcap functions)
+_bash_needmsg=
+fi
+AC_CACHE_VAL(bash_cv_termcap_lib,
+[AC_CHECK_LIB(termcap, tgetent, bash_cv_termcap_lib=libtermcap,
+    [AC_CHECK_LIB(curses, tgetent, bash_cv_termcap_lib=libcurses,
+	[AC_CHECK_LIB(ncurses, tgetent, bash_cv_termcap_lib=libncurses,
+	    bash_cv_termcap_lib=gnutermcap)])])])
+if test "X$_bash_needmsg" = "Xyes"; then
+AC_MSG_CHECKING(which library has the termcap functions)
+fi
+AC_MSG_RESULT(using $bash_cv_termcap_lib)
+if test $bash_cv_termcap_lib = gnutermcap && test -z "$prefer_curses"; then
+LDFLAGS="$LDFLAGS -L./lib/termcap"
+TERMCAP_LIB="./lib/termcap/libtermcap.a"
+TERMCAP_DEP="./lib/termcap/libtermcap.a"
+elif test $bash_cv_termcap_lib = libtermcap && test -z "$prefer_curses"; then
+TERMCAP_LIB=-ltermcap
+TERMCAP_DEP=
+elif test $bash_cv_termcap_lib = libncurses; then
+TERMCAP_LIB=-lncurses
+TERMCAP_DEP=
+else
+TERMCAP_LIB=-lcurses
+TERMCAP_DEP=
+fi
+])
+
+AC_DEFUN(BASH_FUNC_GETCWD,
+[AC_MSG_CHECKING([if getcwd() calls popen()])
+AC_CACHE_VAL(bash_cv_getcwd_calls_popen,
+[AC_TRY_RUN([
+#include <stdio.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifndef __STDC__
+#ifndef const
+#define const
+#endif
+#endif
+
+int popen_called;
+
+FILE *
+popen(command, type)
+     const char *command;
+     const char *type;
+{
+	popen_called = 1;
+	return (FILE *)NULL;
+}
+
+FILE *_popen(command, type)
+     const char *command;
+     const char *type;
+{
+  return (popen (command, type));
+}
+
+int
+pclose(stream)
+FILE *stream;
+{
+	return 0;
+}
+
+int
+_pclose(stream)
+FILE *stream;
+{
+	return 0;
+}
+
+main()
+{
+	char	lbuf[32];
+	popen_called = 0;
+	getcwd(lbuf, 32);
+	exit (popen_called);
+}
+], bash_cv_getcwd_calls_popen=no, bash_cv_getcwd_calls_popen=yes,
+   [AC_MSG_ERROR(cannot check whether getcwd calls popen if cross compiling -- defaulting to no)
+    bash_cv_getcwd_calls_popen=no]
+)])
+AC_MSG_RESULT($bash_cv_getcwd_calls_popen)
+if test $bash_cv_getcwd_calls_popen = yes; then
+AC_DEFINE(GETCWD_BROKEN)
+fi
+])
+
+AC_DEFUN(BASH_STRUCT_DIRENT_D_INO,
+[AC_REQUIRE([AC_HEADER_DIRENT])
+AC_MSG_CHECKING(if struct dirent has a d_ino member)
+AC_CACHE_VAL(bash_cv_dirent_has_dino,
+[AC_TRY_COMPILE([
+#include <stdio.h>
+#include <sys/types.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+#if defined(HAVE_DIRENT_H)
+# include <dirent.h>
+#else
+# define dirent direct
+# ifdef HAVE_SYS_NDIR_H
+#  include <sys/ndir.h>
+# endif /* SYSNDIR */
+# ifdef HAVE_SYS_DIR_H
+#  include <sys/dir.h>
+# endif /* SYSDIR */
+# ifdef HAVE_NDIR_H
+#  include <ndir.h>
+# endif
+#endif /* HAVE_DIRENT_H */
+],[
+struct dirent d; int z; z = d.d_ino;
+], bash_cv_dirent_has_dino=yes, bash_cv_dirent_has_dino=no)])
+AC_MSG_RESULT($bash_cv_dirent_has_dino)
+if test $bash_cv_dirent_has_dino = yes; then
+AC_DEFINE(STRUCT_DIRENT_HAS_D_INO)
+fi
+])
+
+AC_DEFUN(BASH_STRUCT_DIRENT_D_FILENO,
+[AC_REQUIRE([AC_HEADER_DIRENT])
+AC_MSG_CHECKING(if struct dirent has a d_fileno member)
+AC_CACHE_VAL(bash_cv_dirent_has_d_fileno,
+[AC_TRY_COMPILE([
+#include <stdio.h>
+#include <sys/types.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+#if defined(HAVE_DIRENT_H)
+# include <dirent.h>
+#else
+# define dirent direct
+# ifdef HAVE_SYS_NDIR_H
+#  include <sys/ndir.h>
+# endif /* SYSNDIR */
+# ifdef HAVE_SYS_DIR_H
+#  include <sys/dir.h>
+# endif /* SYSDIR */
+# ifdef HAVE_NDIR_H
+#  include <ndir.h>
+# endif
+#endif /* HAVE_DIRENT_H */
+],[
+struct dirent d; int z; z = d.d_fileno;
+], bash_cv_dirent_has_d_fileno=yes, bash_cv_dirent_has_d_fileno=no)])
+AC_MSG_RESULT($bash_cv_dirent_has_d_fileno)
+if test $bash_cv_dirent_has_d_fileno = yes; then
+AC_DEFINE(STRUCT_DIRENT_HAS_D_FILENO)
+fi
+])
+
+AC_DEFUN(BASH_REINSTALL_SIGHANDLERS,
+[AC_REQUIRE([AC_TYPE_SIGNAL])
+AC_REQUIRE([BASH_SIGNAL_CHECK])
+AC_MSG_CHECKING([if signal handlers must be reinstalled when invoked])
+AC_CACHE_VAL(bash_cv_must_reinstall_sighandlers,
+[AC_TRY_RUN([
+#include <signal.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+typedef RETSIGTYPE sigfunc();
+
+int nsigint;
+
+#ifdef HAVE_POSIX_SIGNALS
+sigfunc *
+set_signal_handler(sig, handler)
+     int sig;
+     sigfunc *handler;
+{
+  struct sigaction act, oact;
+  act.sa_handler = handler;
+  act.sa_flags = 0;
+  sigemptyset (&act.sa_mask);
+  sigemptyset (&oact.sa_mask);
+  sigaction (sig, &act, &oact);
+  return (oact.sa_handler);
+}
+#else
+#define set_signal_handler(s, h) signal(s, h)
+#endif
+
+RETSIGTYPE
+sigint(s)
+int s;
+{
+  nsigint++;
+}
+
+main()
+{
+	nsigint = 0;
+	set_signal_handler(SIGINT, sigint);
+	kill((int)getpid(), SIGINT);
+	kill((int)getpid(), SIGINT);
+	exit(nsigint != 2);
+}
+], bash_cv_must_reinstall_sighandlers=no, bash_cv_must_reinstall_sighandlers=yes,
+   [AC_MSG_ERROR(cannot check signal handling if cross compiling -- defaulting to no)
+    bash_cv_must_reinstall_sighandlers=no]
+)])
+AC_MSG_RESULT($bash_cv_must_reinstall_sighandlers)
+if test $bash_cv_must_reinstall_sighandlers = yes; then
+AC_DEFINE(MUST_REINSTALL_SIGHANDLERS)
+fi
+])
+
+AC_DEFUN(BASH_FUNC_SBRK_DECLARED,
+[AC_MSG_CHECKING(for declaration of sbrk in <unistd.h>)
+AC_CACHE_VAL(bash_cv_sbrk_declared,
+[AC_EGREP_HEADER(sbrk, unistd.h,
+ bash_cv_sbrk_declared=yes, bash_cv_sbrk_declared=no)])
+AC_MSG_RESULT($bash_cv_sbrk_declared)
+if test $bash_cv_sbrk_declared = yes; then
+AC_DEFINE(SBRK_DECLARED)
+fi
+])
+
+dnl check that some necessary job control definitions are present
+AC_DEFUN(BASH_JOB_CONTROL_MISSING,
+[AC_REQUIRE([BASH_SIGNAL_CHECK])
+AC_MSG_CHECKING(for presence of necessary job control definitions)
+AC_CACHE_VAL(bash_cv_job_control_missing,
+[AC_TRY_RUN([
+#include <sys/types.h>
+#ifdef HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <signal.h>
+
+/* Add more tests in here as appropriate. */
+main()
+{
+/* signal type */
+#if !defined (HAVE_POSIX_SIGNALS) && !defined (HAVE_BSD_SIGNALS)
+exit(1);
+#endif
+
+/* signals and tty control. */
+#if !defined (SIGTSTP) || !defined (SIGSTOP) || !defined (SIGCONT)
+exit (1);
+#endif
+
+/* process control */
+#if !defined (WNOHANG) || !defined (WUNTRACED) 
+exit(1);
+#endif
+
+/* Posix systems have tcgetpgrp and waitpid. */
+#if defined (_POSIX_VERSION) && !defined (HAVE_TCGETPGRP)
+exit(1);
+#endif
+
+#if defined (_POSIX_VERSION) && !defined (HAVE_WAITPID)
+exit(1);
+#endif
+
+/* Other systems have TIOCSPGRP/TIOCGPRGP and wait3. */
+#if !defined (_POSIX_VERSION) && !defined (HAVE_WAIT3)
+exit(1);
+#endif
+
+exit(0);
+}], bash_cv_job_control_missing=present, bash_cv_job_control_missing=missing,
+    [AC_MSG_ERROR(cannot check job control if cross-compiling -- defaulting to missing)
+     bash_cv_job_control_missing=missing]
+)])
+AC_MSG_RESULT($bash_cv_job_control_missing)
+if test $bash_cv_job_control_missing = missing; then
+AC_DEFINE(JOB_CONTROL_MISSING)
+fi
+])
+
+dnl check whether named pipes are present
+dnl this requires a previous check for mkfifo, but that is awkward to specify
+AC_DEFUN(BASH_SYS_NAMED_PIPES,
+[AC_MSG_CHECKING(for presence of named pipes)
+AC_CACHE_VAL(bash_cv_sys_named_pipes,
+[AC_TRY_RUN([
+#include <sys/types.h>
+#include <sys/stat.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+/* Add more tests in here as appropriate. */
+main()
+{
+int fd;
+
+#if defined (HAVE_MKFIFO)
+exit (0);
+#endif
+
+#if !defined (S_IFIFO) && (defined (_POSIX_VERSION) && !defined (S_ISFIFO))
+exit (1);
+#endif
+
+#if defined (NeXT)
+exit (1);
+#endif
+
+fd = mknod ("/tmp/sh-np-autoconf", 0666 | S_IFIFO, 0);
+if (fd == -1)
+  exit (1);
+close(fd);
+unlink ("/tmp/sh-np-autoconf");
+exit(0);
+}], bash_cv_sys_named_pipes=present, bash_cv_sys_named_pipes=missing,
+    [AC_MSG_ERROR(cannot check for named pipes if cross-compiling -- defaulting to missing)
+     bash_cv_sys_named_pipes=missing]
+)])
+AC_MSG_RESULT($bash_cv_sys_named_pipes)
+if test $bash_cv_sys_named_pipes = missing; then
+AC_DEFINE(NAMED_PIPES_MISSING)
+fi
+])
+
+AC_DEFUN(BASH_FUNC_POSIX_SETJMP,
+[AC_REQUIRE([BASH_SIGNAL_CHECK])
+AC_MSG_CHECKING(for presence of POSIX-style sigsetjmp/siglongjmp)
+AC_CACHE_VAL(bash_cv_func_sigsetjmp,
+[AC_TRY_RUN([
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <sys/types.h>
+#include <signal.h>
+#include <setjmp.h>
+
+main()
+{
+#if !defined (_POSIX_VERSION) || !defined (HAVE_POSIX_SIGNALS)
+exit (1);
+#else
+
+int code;
+sigset_t set, oset;
+sigjmp_buf xx;
+
+/* get the mask */
+sigemptyset(&set);
+sigemptyset(&oset);
+sigprocmask(SIG_BLOCK, (sigset_t *)NULL, &set);
+sigprocmask(SIG_BLOCK, (sigset_t *)NULL, &oset);
+
+/* save it */
+code = sigsetjmp(xx, 1);
+if (code)
+  exit(0);	/* could get sigmask and compare to oset here. */
+
+/* change it */
+sigaddset(&set, SIGINT);
+sigprocmask(SIG_BLOCK, &set, (sigset_t *)NULL);
+
+/* and siglongjmp */
+siglongjmp(xx, 10);
+exit(1);
+#endif
+}], bash_cv_func_sigsetjmp=present, bash_cv_func_sigsetjmp=missing,
+    [AC_MSG_ERROR(cannot check for sigsetjmp/siglongjmp if cross-compiling -- defaulting to missing)
+     bash_cv_func_sigsetjmp=missing]
+)])
+AC_MSG_RESULT($bash_cv_func_sigsetjmp)
+if test $bash_cv_func_sigsetjmp = present; then
+AC_DEFINE(HAVE_POSIX_SIGSETJMP)
+fi
+])
+
+AC_DEFUN(BASH_HAVE_TIOCGWINSZ,
+[AC_MSG_CHECKING(for TIOCGWINSZ in sys/ioctl.h)
+AC_CACHE_VAL(bash_cv_tiocgwinsz_in_ioctl,
+[AC_TRY_COMPILE([#include <sys/types.h>
+#include <sys/ioctl.h>], [int x = TIOCGWINSZ;],
+  bash_cv_tiocgwinsz_in_ioctl=yes,bash_cv_tiocgwinsz_in_ioctl=no)])
+AC_MSG_RESULT($bash_cv_tiocgwinsz_in_ioctl)
+if test $bash_cv_tiocgwinsz_in_ioctl = yes; then   
+AC_DEFINE(GWINSZ_IN_SYS_IOCTL)
+fi
+])
+
+AC_DEFUN(BASH_STRUCT_WINSIZE,
+[AC_MSG_CHECKING(for struct winsize in sys/ioctl.h and termios.h)
+AC_CACHE_VAL(bash_cv_struct_winsize_header,
+[AC_TRY_COMPILE([#include <sys/types.h>
+#include <sys/ioctl.h>], [struct winsize x;],
+  bash_cv_struct_winsize_header=ioctl_h,
+  [AC_TRY_COMPILE([#include <sys/types.h>
+#include <termios.h>], [struct winsize x;],
+  bash_cv_struct_winsize_header=termios_h, bash_cv_struct_winsize_header=other)
+])])
+if test $bash_cv_struct_winsize_header = ioctl_h; then
+  AC_MSG_RESULT(sys/ioctl.h)
+  AC_DEFINE(STRUCT_WINSIZE_IN_SYS_IOCTL)
+elif test $bash_cv_struct_winsize_header = termios_h; then
+  AC_MSG_RESULT(termios.h)
+  AC_DEFINE(STRUCT_WINSIZE_IN_TERMIOS)
+else
+  AC_MSG_RESULT(not found)
+fi
+])
+
+AC_DEFUN(BASH_HAVE_TIOCSTAT,
+[AC_MSG_CHECKING(for TIOCSTAT in sys/ioctl.h)
+AC_CACHE_VAL(bash_cv_tiocstat_in_ioctl,
+[AC_TRY_COMPILE([#include <sys/types.h>
+#include <sys/ioctl.h>], [int x = TIOCSTAT;],
+  bash_cv_tiocstat_in_ioctl=yes,bash_cv_tiocstat_in_ioctl=no)])
+AC_MSG_RESULT($bash_cv_tiocstat_in_ioctl)
+if test $bash_cv_tiocstat_in_ioctl = yes; then   
+AC_DEFINE(TIOCSTAT_IN_SYS_IOCTL)
+fi
+])
+
+AC_DEFUN(BASH_HAVE_FIONREAD,
+[AC_MSG_CHECKING(for FIONREAD in sys/ioctl.h)
+AC_CACHE_VAL(bash_cv_fionread_in_ioctl,
+[AC_TRY_COMPILE([#include <sys/types.h>
+#include <sys/ioctl.h>], [int x = FIONREAD;],
+  bash_cv_fionread_in_ioctl=yes,bash_cv_fionread_in_ioctl=no)])
+AC_MSG_RESULT($bash_cv_fionread_in_ioctl)
+if test $bash_cv_fionread_in_ioctl = yes; then   
+AC_DEFINE(FIONREAD_IN_SYS_IOCTL)
+fi
+])
+
+dnl
+dnl See if speed_t is declared in <sys/types.h>.  Some versions of linux
+dnl require a definition of speed_t each time <termcap.h> is included,
+dnl but you can only get speed_t if you include <termios.h> (on some
+dnl versions) or <sys/types.h> (on others).
+dnl
+AC_DEFUN(BASH_MISC_SPEED_T,
+[AC_MSG_CHECKING(for speed_t in sys/types.h)
+AC_CACHE_VAL(bash_cv_speed_t_in_sys_types,
+[AC_TRY_COMPILE([#include <sys/types.h>], [speed_t x;],
+  bash_cv_speed_t_in_sys_types=yes,bash_cv_speed_t_in_sys_types=no)])
+AC_MSG_RESULT($bash_cv_speed_t_in_sys_types)
+if test $bash_cv_speed_t_in_sys_types = yes; then   
+AC_DEFINE(SPEED_T_IN_SYS_TYPES)
+fi
+])
+
+AC_DEFUN(BASH_CHECK_GETPW_FUNCS,
+[AC_MSG_CHECKING(whether programs are able to redeclare getpw functions)
+AC_CACHE_VAL(bash_cv_can_redecl_getpw,
+[AC_TRY_COMPILE([#include <sys/types.h>
+#include <pwd.h>
+extern struct passwd *getpwent();
+extern struct passwd *getpwuid();
+extern struct passwd *getpwnam();],
+[struct passwd *z; z = getpwent(); z = getpwuid(0); z = getpwnam("root");],
+  bash_cv_can_redecl_getpw=yes,bash_cv_can_redecl_getpw=no)])
+AC_MSG_RESULT($bash_cv_can_redecl_getpw)
+if test $bash_cv_can_redecl_getpw = no; then
+AC_DEFINE(HAVE_GETPW_DECLS)
+fi
+])
+
+AC_DEFUN(BASH_CHECK_DEV_FD,
+[AC_MSG_CHECKING(whether /dev/fd is available)
+AC_CACHE_VAL(bash_cv_dev_fd,
+[if test -d /dev/fd  && test -r /dev/fd/0; then
+   bash_cv_dev_fd=standard
+ elif test -d /proc/self/fd && test -r /proc/self/fd/0; then
+   bash_cv_dev_fd=whacky
+ else
+   bash_cv_dev_fd=absent
+ fi
+])
+AC_MSG_RESULT($bash_cv_dev_fd)
+if test $bash_cv_dev_fd = "standard"; then
+  AC_DEFINE(HAVE_DEV_FD)
+  AC_DEFINE(DEV_FD_PREFIX, "/dev/fd/")
+elif test $bash_cv_dev_fd = "whacky"; then
+  AC_DEFINE(HAVE_DEV_FD)
+  AC_DEFINE(DEV_FD_PREFIX, "/proc/self/fd/")
+fi
+])
+
+dnl
+dnl Check for the presence of getpeername (the only networking function
+dnl bash currently requires) in libsocket.  If libsocket is present,
+dnl check for libnsl and add it to LIBS if it's there, since most
+dnl systems with libsocket require linking with libnsl as well.
+dnl This should only be called if getpeername was not found in libc.
+dnl
+AC_DEFUN(BASH_CHECK_SOCKLIB,
+[
+if test "X$bash_cv_have_socklib" = "X"; then
+_bash_needmsg=
+else
+AC_MSG_CHECKING(for socket library)
+_bash_needmsg=yes
+fi
+AC_CACHE_VAL(bash_cv_have_socklib,
+[AC_CHECK_LIB(socket, getpeername,
+        bash_cv_have_socklib=yes, bash_cv_have_socklib=no, -lnsl)])
+if test "X$_bash_needmsg" = Xyes; then
+  AC_MSG_RESULT($bash_cv_have_socklib)
+  _bash_needmsg=
+fi
+if test $bash_cv_have_socklib = yes; then
+  # check for libnsl, add it to LIBS if present
+  if test "X$bash_cv_have_libnsl" = "X"; then
+    _bash_needmsg=
+  else
+    AC_MSG_CHECKING(for libnsl)
+    _bash_needmsg=yes
+  fi
+  AC_CACHE_VAL(bash_cv_have_libnsl,
+	   [AC_CHECK_LIB(nsl, t_open,
+		 bash_cv_have_libnsl=yes, bash_cv_have_libnsl=no)])
+  if test "X$_bash_needmsg" = Xyes; then
+    AC_MSG_RESULT($bash_cv_have_libnsl)
+    _bash_needmsg=
+  fi
+  if test $bash_cv_have_libnsl = yes; then
+    LIBS="-lsocket -lnsl $LIBS"
+  else
+    LIBS="-lsocket $LIBS"
+  fi
+  AC_DEFINE(HAVE_LIBSOCKET)
+  AC_DEFINE(HAVE_GETPEERNAME)
+fi
+])
+
+AC_DEFUN(BASH_DEFAULT_MAIL_DIR,
+[AC_MSG_CHECKING(for default mail directory)
+AC_CACHE_VAL(bash_cv_mail_dir,
+[if test -d /var/mail; then
+   bash_cv_mail_dir=/var/mail
+ elif test -d /usr/mail; then
+   bash_cv_mail_dir=/usr/mail
+ elif test -d /var/spool/mail; then
+   bash_cv_mail_dir=/var/spool/mail
+ elif test -d /usr/spool/mail; then
+   bash_cv_mail_dir=/usr/spool/mail
+ else
+   bash_cv_mail_dir=unknown
+ fi
+])
+AC_MSG_RESULT($bash_cv_mail_dir)
+if test $bash_cv_mail_dir = "/var/mail"; then
+   AC_DEFINE(DEFAULT_MAIL_DIRECTORY, "/var/mail")
+elif test $bash_cv_mail_dir = "/usr/mail"; then
+   AC_DEFINE(DEFAULT_MAIL_DIRECTORY, "/usr/mail")
+elif test $bash_cv_mail_dir = "/var/spool/mail"; then
+   AC_DEFINE(DEFAULT_MAIL_DIRECTORY, "/var/spool/mail")
+elif test $bash_cv_mail_dir = "/usr/spool/mail"; then
+   AC_DEFINE(DEFAULT_MAIL_DIRECTORY, "/usr/spool/mail")
+else
+   AC_DEFINE(DEFAULT_MAIL_DIRECTORY, "unknown")
+fi
+])
+
+dnl
+dnl Check if HPUX needs _KERNEL defined for RLIMIT_* definitions
+dnl
+AC_DEFUN(BASH_KERNEL_RLIMIT_CHECK,
+[AC_MSG_CHECKING([whether $host_os needs _KERNEL for RLIMIT defines])
+AC_CACHE_VAL(bash_cv_kernel_rlimit,
+[AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <sys/resource.h>
+],
+[
+  int f;
+  f = RLIMIT_DATA;
+], bash_cv_kernel_rlimit=no,
+[AC_TRY_COMPILE([
+#include <sys/types.h>
+#define _KERNEL
+#include <sys/resource.h>
+#undef _KERNEL
+],
+[
+	int f;
+        f = RLIMIT_DATA;
+], bash_cv_kernel_rlimit=yes, bash_cv_kernel_rlimit=no)]
+)])
+AC_MSG_RESULT($bash_cv_kernel_rlimit)
+if test $bash_cv_kernel_rlimit = yes; then
+AC_DEFINE(RLIMIT_NEEDS_KERNEL)
+fi
+])
+
+AC_DEFUN(BASH_FUNC_STRCOLL,
+[
+AC_MSG_CHECKING(whether or not strcoll and strcmp differ)
+AC_CACHE_VAL(bash_cv_func_strcoll_broken,
+[AC_TRY_RUN([
+#include <stdio.h>
+#if defined (HAVE_LOCALE_H)
+#include <locale.h>
+#endif
+
+main(c, v)
+int     c;
+char    *v[];
+{
+        int     r1, r2;
+        char    *deflocale, *defcoll;
+
+#ifdef HAVE_SETLOCALE
+        deflocale = setlocale(LC_ALL, "");
+	defcoll = setlocale(LC_COLLATE, "");
+#endif
+
+#ifdef HAVE_STRCOLL
+	/* These two values are taken from tests/glob-test. */
+        r1 = strcoll("abd", "aXd");
+#else
+	r1 = 0;
+#endif
+        r2 = strcmp("abd", "aXd");
+
+	/* These two should both be greater than 0.  It is permissible for
+	   a system to return different values, as long as the sign is the
+	   same. */
+
+        /* Exit with 1 (failure) if these two values are both > 0, since
+	   this tests whether strcoll(3) is broken with respect to strcmp(3)
+	   in the default locale. */
+	exit (r1 > 0 && r2 > 0);
+}
+], bash_cv_func_strcoll_broken=yes, bash_cv_func_strcoll_broken=no,
+   [AC_MSG_ERROR(cannot check strcoll if cross compiling -- defaulting to no)
+    bash_cv_func_strcoll_broken=no]
+)])
+AC_MSG_RESULT($bash_cv_func_strcoll_broken)
+if test $bash_cv_func_strcoll_broken = yes; then
+AC_DEFINE(STRCOLL_BROKEN)
+fi
+])
+
+dnl
+dnl If available, use support for large files unless the user specified
+dnl one of the CPPFLAGS, LDFLAGS, or LIBS variables (<eggert@twinsun.com>
+dnl via GNU patch 2.5)
+dnl
+AC_DEFUN(BASH_LARGE_FILE_SUPPORT,
+[AC_MSG_CHECKING(whether large file support needs explicit enabling)
+ac_getconfs=''
+ac_result=yes
+ac_set=''
+ac_shellvars='CPPFLAGS LDFLAGS LIBS'
+for ac_shellvar in $ac_shellvars; do
+  case $ac_shellvar in
+  CPPFLAGS) ac_lfsvar=LFS_CFLAGS ac_lfs64var=LFS64_CFLAGS ;;
+  *) ac_lfsvar=LFS_$ac_shellvar ac_lfs64var=LFS64_$ac_shellvar ;;
+  esac
+  eval test '"${'$ac_shellvar'+set}"' = set && ac_set=$ac_shellvar
+  (getconf $ac_lfsvar) >/dev/null 2>&1 || { ac_result=no; break; }
+  ac_getconf=`getconf $ac_lfsvar`
+  ac_getconf64=`getconf $ac_lfs64var`
+  ac_getconfs=$ac_getconfs$ac_getconf\ $ac_getconf64
+  eval ac_test_$ac_shellvar="\$ac_getconf\ \$ac_getconf64"
+done
+case "$ac_result$ac_getconfs" in
+yes) ac_result=no ;;
+esac
+case "$ac_result$ac_set" in
+yes?*) ac_result="yes, but $ac_set is already set, so use its settings"
+esac
+AC_MSG_RESULT($ac_result)
+case $ac_result in
+yes)
+  for ac_shellvar in $ac_shellvars; do
+    eval $ac_shellvar=\$ac_test_$ac_shellvar
+  done ;;
+esac
+])
+
+dnl
+dnl AC_SYS_RESTARTABLE_SYSCALLS tests only for restarted system calls
+dnl after a signal handler has been installed with signal().  Since
+dnl Bash uses sigaction() if it is available, we need to check whether
+dnl or not a signal handler installed with sigaction and SA_RESTART
+dnl causes system calls to be restarted after the signal is caught
+dnl
+AC_DEFUN(BASH_SYS_RESTARTABLE_SYSCALLS,
+[AC_REQUIRE([BASH_SIGNAL_CHECK])
+AC_CACHE_CHECK(for restartable system calls with posix sigaction,
+bash_cv_sys_restartable_syscalls,
+[AC_TRY_RUN(
+[/* Exit 0 (true) if wait returns something other than -1,
+   i.e. the pid of the child, which means that wait was restarted
+   after getting the signal.  */
+#include <sys/types.h>
+#include <signal.h>
+static int caught = 0;
+void ucatch (isig) int isig; { caught = 1; }
+main ()
+{
+#if !defined (_POSIX_VERSION) || !defined (HAVE_POSIX_SIGNALS)
+  exit (1);
+#else
+  struct sigaction act, oact;
+  int i, status;
+
+  act.sa_handler = ucatch;
+  /* Might want to add SA_RESTART here, but bash's set_signal_handler
+     does not. */
+  act.sa_flags = 0;
+  sigemptyset(&act.sa_mask);
+  sigemptyset(&oact.sa_mask);
+  i = fork ();
+  /* A possible race condition here, but in practice it never happens. */
+  if (i == 0) { sleep (3); kill (getppid (), SIGINT); sleep (3); exit (0); }
+  sigaction(SIGINT, &act, &oact);
+  status = wait(&i);
+  if (status == -1) wait(&i);
+  exit (status == -1);
+#endif
+}
+], bash_cv_sys_restartable_syscalls=yes, bash_cv_sys_restartable_syscalls=no,
+   AC_MSG_ERROR(cannot check restartable syscalls if cross compiling))
+])
+if test $bash_cv_sys_restartable_syscalls = yes; then
+  AC_DEFINE(HAVE_RESTARTABLE_SYSCALLS)
+fi
+])
diff --git a/readline/ansi_stdlib.h b/readline/ansi_stdlib.h
new file mode 100644
index 00000000000..52339da5d33
--- /dev/null
+++ b/readline/ansi_stdlib.h
@@ -0,0 +1,41 @@
+/* ansi_stdlib.h -- An ANSI Standard stdlib.h. */
+/* A minimal stdlib.h containing extern declarations for those functions
+   that bash uses. */
+
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash is free software; you can redistribute it and/or modify it under
+   the terms of the GNU General Public License as published by the Free
+   Software Foundation; either version 2, or (at your option) any later
+   version.
+
+   Bash is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with Bash; see the file COPYING.  If not, write to the Free Software
+   Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (_STDLIB_H_)
+#define	_STDLIB_H_ 1
+
+/* String conversion functions. */
+extern int atoi ();
+extern long int atol ();
+
+/* Memory allocation functions. */
+extern char *malloc ();
+extern char *realloc ();
+extern void free ();
+
+/* Other miscellaneous functions. */
+extern void abort ();
+extern void exit ();
+extern char *getenv ();
+extern void qsort ();
+
+#endif /* _STDLIB_H  */
diff --git a/readline/bind.c b/readline/bind.c
new file mode 100644
index 00000000000..300530a0781
--- /dev/null
+++ b/readline/bind.c
@@ -0,0 +1,1944 @@
+/* bind.c -- key binding and startup file support for the readline library. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#if defined (HAVE_SYS_FILE_H)
+#  include <sys/file.h>
+#endif /* HAVE_SYS_FILE_H */
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <signal.h>
+#include <errno.h>
+
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+#include "posixstat.h"
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+#if !defined (strchr) && !defined (__STDC__)
+extern char *strchr (), *strrchr ();
+#endif /* !strchr && !__STDC__ */
+
+extern int _rl_horizontal_scroll_mode;
+extern int _rl_mark_modified_lines;
+extern int _rl_bell_preference;
+extern int _rl_meta_flag;
+extern int _rl_convert_meta_chars_to_ascii;
+extern int _rl_output_meta_chars;
+extern int _rl_complete_show_all;
+extern int _rl_complete_mark_directories;
+extern int _rl_print_completions_horizontally;
+extern int _rl_completion_case_fold;
+extern int _rl_enable_keypad;
+#if defined (PAREN_MATCHING)
+extern int rl_blink_matching_paren;
+#endif /* PAREN_MATCHING */
+#if defined (VISIBLE_STATS)
+extern int rl_visible_stats;
+#endif /* VISIBLE_STATS */
+extern int rl_complete_with_tilde_expansion;
+extern int rl_completion_query_items;
+extern int rl_inhibit_completion;
+extern char *_rl_comment_begin;
+
+extern int rl_explicit_arg;
+extern int rl_editing_mode;
+extern unsigned char _rl_parsing_conditionalized_out;
+extern Keymap _rl_keymap;
+
+extern char *possible_control_prefixes[], *possible_meta_prefixes[];
+
+/* Functions imported from funmap.c */
+extern char **rl_funmap_names ();
+extern int rl_add_funmap_entry ();
+
+/* Functions imported from util.c */
+extern char *_rl_strindex ();
+
+/* Functions imported from shell.c */
+extern char *get_env_value ();
+
+/* Variables exported by this file. */
+Keymap rl_binding_keymap;
+
+/* Forward declarations */
+void rl_set_keymap_from_edit_mode ();
+
+static int _rl_read_init_file ();
+static int glean_key_from_name ();
+static int substring_member_of_array ();
+
+extern char *xmalloc (), *xrealloc ();
+
+/* **************************************************************** */
+/*								    */
+/*			Binding keys				    */
+/*								    */
+/* **************************************************************** */
+
+/* rl_add_defun (char *name, Function *function, int key)
+   Add NAME to the list of named functions.  Make FUNCTION be the function
+   that gets called.  If KEY is not -1, then bind it. */
+int
+rl_add_defun (name, function, key)
+     char *name;
+     Function *function;
+     int key;
+{
+  if (key != -1)
+    rl_bind_key (key, function);
+  rl_add_funmap_entry (name, function);
+  return 0;
+}
+
+/* Bind KEY to FUNCTION.  Returns non-zero if KEY is out of range. */
+int
+rl_bind_key (key, function)
+     int key;
+     Function *function;
+{
+  if (key < 0)
+    return (key);
+
+  if (META_CHAR (key) && _rl_convert_meta_chars_to_ascii)
+    {
+      if (_rl_keymap[ESC].type == ISKMAP)
+	{
+	  Keymap escmap;
+
+	  escmap = FUNCTION_TO_KEYMAP (_rl_keymap, ESC);
+	  key = UNMETA (key);
+	  escmap[key].type = ISFUNC;
+	  escmap[key].function = function;
+	  return (0);
+	}
+      return (key);
+    }
+
+  _rl_keymap[key].type = ISFUNC;
+  _rl_keymap[key].function = function;
+  rl_binding_keymap = _rl_keymap;
+  return (0);
+}
+
+/* Bind KEY to FUNCTION in MAP.  Returns non-zero in case of invalid
+   KEY. */
+int
+rl_bind_key_in_map (key, function, map)
+     int key;
+     Function *function;
+     Keymap map;
+{
+  int result;
+  Keymap oldmap;
+
+  oldmap = _rl_keymap;
+  _rl_keymap = map;
+  result = rl_bind_key (key, function);
+  _rl_keymap = oldmap;
+  return (result);
+}
+
+/* Make KEY do nothing in the currently selected keymap.
+   Returns non-zero in case of error. */
+int
+rl_unbind_key (key)
+     int key;
+{
+  return (rl_bind_key (key, (Function *)NULL));
+}
+
+/* Make KEY do nothing in MAP.
+   Returns non-zero in case of error. */
+int
+rl_unbind_key_in_map (key, map)
+     int key;
+     Keymap map;
+{
+  return (rl_bind_key_in_map (key, (Function *)NULL, map));
+}
+
+/* Unbind all keys bound to FUNCTION in MAP. */
+int
+rl_unbind_function_in_map (func, map)
+     Function *func;
+     Keymap map;
+{
+  register int i;
+
+  for (i = 0; i < KEYMAP_SIZE; i++)
+    {
+      if (map[i].type == ISFUNC && map[i].function == func)
+	map[i].function = (Function *)NULL;
+    }
+}
+
+int
+rl_unbind_command_in_map (command, map)
+     char *command;
+     Keymap map;
+{
+  Function *func;
+  register int i;
+
+  func = rl_named_function (command);
+  if (func == 0)
+    return 0;
+  return (rl_unbind_function_in_map (func, map));
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+   FUNCTION.  This makes new keymaps as necessary.  The initial
+   place to do bindings is in MAP. */
+int
+rl_set_key (keyseq, function, map)
+     char *keyseq;
+     Function *function;
+     Keymap map;
+{
+  return (rl_generic_bind (ISFUNC, keyseq, (char *)function, map));
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+   the string of characters MACRO.  This makes new keymaps as
+   necessary.  The initial place to do bindings is in MAP. */
+int
+rl_macro_bind (keyseq, macro, map)
+     char *keyseq, *macro;
+     Keymap map;
+{
+  char *macro_keys;
+  int macro_keys_len;
+
+  macro_keys = (char *)xmalloc ((2 * strlen (macro)) + 1);
+
+  if (rl_translate_keyseq (macro, macro_keys, &macro_keys_len))
+    {
+      free (macro_keys);
+      return -1;
+    }
+  rl_generic_bind (ISMACR, keyseq, macro_keys, map);
+  return 0;
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+   the arbitrary pointer DATA.  TYPE says what kind of data is
+   pointed to by DATA, right now this can be a function (ISFUNC),
+   a macro (ISMACR), or a keymap (ISKMAP).  This makes new keymaps
+   as necessary.  The initial place to do bindings is in MAP. */
+int
+rl_generic_bind (type, keyseq, data, map)
+     int type;
+     char *keyseq, *data;
+     Keymap map;
+{
+  char *keys;
+  int keys_len;
+  register int i;
+
+  /* If no keys to bind to, exit right away. */
+  if (!keyseq || !*keyseq)
+    {
+      if (type == ISMACR)
+	free (data);
+      return -1;
+    }
+
+  keys = xmalloc (1 + (2 * strlen (keyseq)));
+
+  /* Translate the ASCII representation of KEYSEQ into an array of
+     characters.  Stuff the characters into KEYS, and the length of
+     KEYS into KEYS_LEN. */
+  if (rl_translate_keyseq (keyseq, keys, &keys_len))
+    {
+      free (keys);
+      return -1;
+    }
+
+  /* Bind keys, making new keymaps as necessary. */
+  for (i = 0; i < keys_len; i++)
+    {
+      int ic = (int) ((unsigned char)keys[i]);
+
+      if (_rl_convert_meta_chars_to_ascii && META_CHAR (ic))
+	{
+	  ic = UNMETA (ic);
+	  if (map[ESC].type == ISKMAP)
+	    map = FUNCTION_TO_KEYMAP (map, ESC);
+	}
+
+      if ((i + 1) < keys_len)
+	{
+	  if (map[ic].type != ISKMAP)
+	    {
+	      if (map[ic].type == ISMACR)
+		free ((char *)map[ic].function);
+
+	      map[ic].type = ISKMAP;
+	      map[ic].function = KEYMAP_TO_FUNCTION (rl_make_bare_keymap());
+	    }
+	  map = FUNCTION_TO_KEYMAP (map, ic);
+	}
+      else
+	{
+	  if (map[ic].type == ISMACR)
+	    free ((char *)map[ic].function);
+
+	  map[ic].function = KEYMAP_TO_FUNCTION (data);
+	  map[ic].type = type;
+	}
+
+      rl_binding_keymap = map;
+    }
+  free (keys);
+  return 0;
+}
+
+/* Translate the ASCII representation of SEQ, stuffing the values into ARRAY,
+   an array of characters.  LEN gets the final length of ARRAY.  Return
+   non-zero if there was an error parsing SEQ. */
+int
+rl_translate_keyseq (seq, array, len)
+     char *seq, *array;
+     int *len;
+{
+  register int i, c, l, temp;
+
+  for (i = l = 0; c = seq[i]; i++)
+    {
+      if (c == '\\')
+	{
+	  c = seq[++i];
+
+	  if (c == 0)
+	    break;
+
+	  /* Handle \C- and \M- prefixes. */
+	  if ((c == 'C' || c == 'M') && seq[i + 1] == '-')
+	    {
+	      /* Handle special case of backwards define. */
+	      if (strncmp (&seq[i], "C-\\M-", 5) == 0)
+		{
+		  array[l++] = ESC;
+		  i += 5;
+		  array[l++] = CTRL (_rl_to_upper (seq[i]));
+		  if (seq[i] == '\0')
+		    i--;
+		}
+	      else if (c == 'M')
+		{
+		  i++;
+		  array[l++] = ESC;	/* XXX */
+		}
+	      else if (c == 'C')
+		{
+		  i += 2;
+		  /* Special hack for C-?... */
+		  array[l++] = (seq[i] == '?') ? RUBOUT : CTRL (_rl_to_upper (seq[i]));
+		}
+	      continue;
+	    }	      
+
+	  /* Translate other backslash-escaped characters.  These are the
+	     same escape sequences that bash's `echo' and `printf' builtins
+	     handle, with the addition of \d -> RUBOUT.  A backslash
+	     preceding a character that is not special is stripped. */
+	  switch (c)
+	    {
+	    case 'a':
+	      array[l++] = '\007';
+	      break;
+	    case 'b':
+	      array[l++] = '\b';
+	      break;
+	    case 'd':
+	      array[l++] = RUBOUT;	/* readline-specific */
+	      break;
+	    case 'e':
+	      array[l++] = ESC;
+	      break;
+	    case 'f':
+	      array[l++] = '\f';
+	      break;
+	    case 'n':
+	      array[l++] = NEWLINE;
+	      break;
+	    case 'r':
+	      array[l++] = RETURN;
+	      break;
+	    case 't':
+	      array[l++] = TAB;
+	      break;
+	    case 'v':
+	      array[l++] = 0x0B;
+	      break;
+	    case '\\':
+	      array[l++] = '\\';
+	      break;
+	    case '0': case '1': case '2': case '3':
+	    case '4': case '5': case '6': case '7':
+	      i++;
+	      for (temp = 2, c -= '0'; ISOCTAL (seq[i]) && temp--; i++)
+	        c = (c * 8) + OCTVALUE (seq[i]);
+	      i--;	/* auto-increment in for loop */
+	      array[l++] = c % (largest_char + 1);
+	      break;
+	    case 'x':
+	      i++;
+	      for (temp = 3, c = 0; isxdigit (seq[i]) && temp--; i++)
+	        c = (c * 16) + HEXVALUE (seq[i]);
+	      if (temp == 3)
+	        c = 'x';
+	      i--;	/* auto-increment in for loop */
+	      array[l++] = c % (largest_char + 1);
+	      break;
+	    default:	/* backslashes before non-special chars just add the char */
+	      array[l++] = c;
+	      break;	/* the backslash is stripped */
+	    }
+	  continue;
+	}
+
+      array[l++] = c;
+    }
+
+  *len = l;
+  array[l] = '\0';
+  return (0);
+}
+
+char *
+rl_untranslate_keyseq (seq)
+     int seq;
+{
+  static char kseq[16];
+  int i, c;
+
+  i = 0;
+  c = seq;
+  if (META_CHAR (c))
+    {
+      kseq[i++] = '\\';
+      kseq[i++] = 'M';
+      kseq[i++] = '-';
+      c = UNMETA (c);
+    }
+  else if (CTRL_CHAR (c))
+    {
+      kseq[i++] = '\\';
+      kseq[i++] = 'C';
+      kseq[i++] = '-';
+      c = _rl_to_lower (UNCTRL (c));
+    }
+  else if (c == RUBOUT)
+    {
+      kseq[i++] = '\\';
+      kseq[i++] = 'C';
+      kseq[i++] = '-';
+      c = '?';
+    }
+
+  if (c == ESC)
+    {
+      kseq[i++] = '\\';
+      c = 'e';
+    }
+  else if (c == '\\' || c == '"')
+    {
+      kseq[i++] = '\\';
+    }
+
+  kseq[i++] = (unsigned char) c;
+  kseq[i] = '\0';
+  return kseq;
+}
+
+static char *
+_rl_untranslate_macro_value (seq)
+     char *seq;
+{
+  char *ret, *r, *s;
+  int c;
+
+  r = ret = xmalloc (7 * strlen (seq) + 1);
+  for (s = seq; *s; s++)
+    {
+      c = *s;
+      if (META_CHAR (c))
+	{
+	  *r++ = '\\';
+	  *r++ = 'M';
+	  *r++ = '-';
+	  c = UNMETA (c);
+	}
+      else if (CTRL_CHAR (c) && c != ESC)
+	{
+	  *r++ = '\\';
+	  *r++ = 'C';
+	  *r++ = '-';
+	  c = _rl_to_lower (UNCTRL (c));
+	}
+      else if (c == RUBOUT)
+ 	{
+ 	  *r++ = '\\';
+ 	  *r++ = 'C';
+ 	  *r++ = '-';
+ 	  c = '?';
+ 	}
+
+      if (c == ESC)
+	{
+	  *r++ = '\\';
+	  c = 'e';
+	}
+      else if (c == '\\' || c == '"')
+	*r++ = '\\';
+
+      *r++ = (unsigned char)c;
+    }
+  *r = '\0';
+  return ret;
+}
+
+/* Return a pointer to the function that STRING represents.
+   If STRING doesn't have a matching function, then a NULL pointer
+   is returned. */
+Function *
+rl_named_function (string)
+     char *string;
+{
+  register int i;
+
+  rl_initialize_funmap ();
+
+  for (i = 0; funmap[i]; i++)
+    if (_rl_stricmp (funmap[i]->name, string) == 0)
+      return (funmap[i]->function);
+  return ((Function *)NULL);
+}
+
+/* Return the function (or macro) definition which would be invoked via
+   KEYSEQ if executed in MAP.  If MAP is NULL, then the current keymap is
+   used.  TYPE, if non-NULL, is a pointer to an int which will receive the
+   type of the object pointed to.  One of ISFUNC (function), ISKMAP (keymap),
+   or ISMACR (macro). */
+Function *
+rl_function_of_keyseq (keyseq, map, type)
+     char *keyseq;
+     Keymap map;
+     int *type;
+{
+  register int i;
+
+  if (!map)
+    map = _rl_keymap;
+
+  for (i = 0; keyseq && keyseq[i]; i++)
+    {
+      int ic = keyseq[i];
+
+      if (META_CHAR (ic) && _rl_convert_meta_chars_to_ascii)
+	{
+	  if (map[ESC].type != ISKMAP)
+	    {
+	      if (type)
+		*type = map[ESC].type;
+
+	      return (map[ESC].function);
+	    }
+	  else
+	    {
+	      map = FUNCTION_TO_KEYMAP (map, ESC);
+	      ic = UNMETA (ic);
+	    }
+	}
+
+      if (map[ic].type == ISKMAP)
+	{
+	  /* If this is the last key in the key sequence, return the
+	     map. */
+	  if (!keyseq[i + 1])
+	    {
+	      if (type)
+		*type = ISKMAP;
+
+	      return (map[ic].function);
+	    }
+	  else
+	    map = FUNCTION_TO_KEYMAP (map, ic);
+	}
+      else
+	{
+	  if (type)
+	    *type = map[ic].type;
+
+	  return (map[ic].function);
+	}
+    }
+  return ((Function *) NULL);
+}
+
+/* The last key bindings file read. */
+static char *last_readline_init_file = (char *)NULL;
+
+/* The file we're currently reading key bindings from. */
+static char *current_readline_init_file;
+static int current_readline_init_include_level;
+static int current_readline_init_lineno;
+
+/* Read FILENAME into a locally-allocated buffer and return the buffer.
+   The size of the buffer is returned in *SIZEP.  Returns NULL if any
+   errors were encountered. */
+static char *
+_rl_read_file (filename, sizep)
+     char *filename;
+     size_t *sizep;
+{
+  struct stat finfo;
+  size_t file_size;
+  char *buffer;
+  int i, file;
+
+  if ((stat (filename, &finfo) < 0) || (file = open (filename, O_RDONLY, 0666)) < 0)
+    return ((char *)NULL);
+
+  file_size = (size_t)finfo.st_size;
+
+  /* check for overflow on very large files */
+  if (file_size != finfo.st_size || file_size + 1 < file_size)
+    {
+      if (file >= 0)
+	close (file);
+#if defined (EFBIG)
+      errno = EFBIG;
+#endif
+      return ((char *)NULL);
+    }
+
+  /* Read the file into BUFFER. */
+  buffer = (char *)xmalloc (file_size + 1);
+  i = read (file, buffer, file_size);
+  close (file);
+
+  if (i < file_size)
+    {
+      free (buffer);
+      return ((char *)NULL);
+    }
+
+  buffer[file_size] = '\0';
+  if (sizep)
+    *sizep = file_size;
+  return (buffer);
+}
+
+/* Re-read the current keybindings file. */
+int
+rl_re_read_init_file (count, ignore)
+     int count, ignore;
+{
+  int r;
+  r = rl_read_init_file ((char *)NULL);
+  rl_set_keymap_from_edit_mode ();
+  return r;
+}
+
+/* Do key bindings from a file.  If FILENAME is NULL it defaults
+   to the first non-null filename from this list:
+     1. the filename used for the previous call
+     2. the value of the shell variable `INPUTRC'
+     3. ~/.inputrc
+   If the file existed and could be opened and read, 0 is returned,
+   otherwise errno is returned. */
+int
+rl_read_init_file (filename)
+     char *filename;
+{
+  /* Default the filename. */
+  if (filename == 0)
+    {
+      filename = last_readline_init_file;
+      if (filename == 0)
+        filename = get_env_value ("INPUTRC");
+      if (filename == 0)
+	filename = DEFAULT_INPUTRC;
+    }
+
+  if (*filename == 0)
+    filename = DEFAULT_INPUTRC;
+
+  return (_rl_read_init_file (filename, 0));
+}
+
+static int
+_rl_read_init_file (filename, include_level)
+     char *filename;
+     int include_level;
+{
+  register int i;
+  char *buffer, *openname, *line, *end;
+  size_t file_size;
+
+  current_readline_init_file = filename;
+  current_readline_init_include_level = include_level;
+
+  openname = tilde_expand (filename);
+  buffer = _rl_read_file (openname, &file_size);
+  if (buffer == 0)
+    return (errno);
+  
+  if (include_level == 0 && filename != last_readline_init_file)
+    {
+      FREE (last_readline_init_file);
+      last_readline_init_file = savestring (filename);
+    }
+
+  /* Loop over the lines in the file.  Lines that start with `#' are
+     comments; all other lines are commands for readline initialization. */
+  current_readline_init_lineno = 1;
+  line = buffer;
+  end = buffer + file_size;
+  while (line < end)
+    {
+      /* Find the end of this line. */
+      for (i = 0; line + i != end && line[i] != '\n'; i++);
+
+      /* Mark end of line. */
+      line[i] = '\0';
+
+      /* Skip leading whitespace. */
+      while (*line && whitespace (*line))
+        {
+	  line++;
+	  i--;
+        }
+
+      /* If the line is not a comment, then parse it. */
+      if (*line && *line != '#')
+	rl_parse_and_bind (line);
+
+      /* Move to the next line. */
+      line += i + 1;
+      current_readline_init_lineno++;
+    }
+
+  free (buffer);
+  return (0);
+}
+
+static void
+_rl_init_file_error (msg)
+     char *msg;
+{
+  fprintf (stderr, "readline: %s: line %d: %s\n", current_readline_init_file,
+ 		   current_readline_init_lineno,
+ 		   msg);
+}
+
+/* **************************************************************** */
+/*								    */
+/*			Parser Directives       		    */
+/*								    */
+/* **************************************************************** */
+
+/* Conditionals. */
+
+/* Calling programs set this to have their argv[0]. */
+char *rl_readline_name = "other";
+
+/* Stack of previous values of parsing_conditionalized_out. */
+static unsigned char *if_stack = (unsigned char *)NULL;
+static int if_stack_depth;
+static int if_stack_size;
+
+/* Push _rl_parsing_conditionalized_out, and set parser state based
+   on ARGS. */
+static int
+parser_if (args)
+     char *args;
+{
+  register int i;
+
+  /* Push parser state. */
+  if (if_stack_depth + 1 >= if_stack_size)
+    {
+      if (!if_stack)
+	if_stack = (unsigned char *)xmalloc (if_stack_size = 20);
+      else
+	if_stack = (unsigned char *)xrealloc (if_stack, if_stack_size += 20);
+    }
+  if_stack[if_stack_depth++] = _rl_parsing_conditionalized_out;
+
+  /* If parsing is turned off, then nothing can turn it back on except
+     for finding the matching endif.  In that case, return right now. */
+  if (_rl_parsing_conditionalized_out)
+    return 0;
+
+  /* Isolate first argument. */
+  for (i = 0; args[i] && !whitespace (args[i]); i++);
+
+  if (args[i])
+    args[i++] = '\0';
+
+  /* Handle "$if term=foo" and "$if mode=emacs" constructs.  If this
+     isn't term=foo, or mode=emacs, then check to see if the first
+     word in ARGS is the same as the value stored in rl_readline_name. */
+  if (rl_terminal_name && _rl_strnicmp (args, "term=", 5) == 0)
+    {
+      char *tem, *tname;
+
+      /* Terminals like "aaa-60" are equivalent to "aaa". */
+      tname = savestring (rl_terminal_name);
+      tem = strchr (tname, '-');
+      if (tem)
+	*tem = '\0';
+
+      /* Test the `long' and `short' forms of the terminal name so that
+	 if someone has a `sun-cmd' and does not want to have bindings
+	 that will be executed if the terminal is a `sun', they can put
+	 `$if term=sun-cmd' into their .inputrc. */
+      _rl_parsing_conditionalized_out = _rl_stricmp (args + 5, tname) &&
+					_rl_stricmp (args + 5, rl_terminal_name);
+      free (tname);
+    }
+#if defined (VI_MODE)
+  else if (_rl_strnicmp (args, "mode=", 5) == 0)
+    {
+      int mode;
+
+      if (_rl_stricmp (args + 5, "emacs") == 0)
+	mode = emacs_mode;
+      else if (_rl_stricmp (args + 5, "vi") == 0)
+	mode = vi_mode;
+      else
+	mode = no_mode;
+
+      _rl_parsing_conditionalized_out = mode != rl_editing_mode;
+    }
+#endif /* VI_MODE */
+  /* Check to see if the first word in ARGS is the same as the
+     value stored in rl_readline_name. */
+  else if (_rl_stricmp (args, rl_readline_name) == 0)
+    _rl_parsing_conditionalized_out = 0;
+  else
+    _rl_parsing_conditionalized_out = 1;
+  return 0;
+}
+
+/* Invert the current parser state if there is anything on the stack. */
+static int
+parser_else (args)
+     char *args;
+{
+  register int i;
+
+  if (if_stack_depth == 0)
+    {
+      _rl_init_file_error ("$else found without matching $if");
+      return 0;
+    }
+
+  /* Check the previous (n - 1) levels of the stack to make sure that
+     we haven't previously turned off parsing. */
+  for (i = 0; i < if_stack_depth - 1; i++)
+    if (if_stack[i] == 1)
+      return 0;
+
+  /* Invert the state of parsing if at top level. */
+  _rl_parsing_conditionalized_out = !_rl_parsing_conditionalized_out;
+  return 0;
+}
+
+/* Terminate a conditional, popping the value of
+   _rl_parsing_conditionalized_out from the stack. */
+static int
+parser_endif (args)
+     char *args;
+{
+  if (if_stack_depth)
+    _rl_parsing_conditionalized_out = if_stack[--if_stack_depth];
+  else
+    _rl_init_file_error ("$endif without matching $if");
+  return 0;
+}
+
+static int
+parser_include (args)
+     char *args;
+{
+  char *old_init_file, *e;
+  int old_line_number, old_include_level, r;
+
+  if (_rl_parsing_conditionalized_out)
+    return (0);
+
+  old_init_file = current_readline_init_file;
+  old_line_number = current_readline_init_lineno;
+  old_include_level = current_readline_init_include_level;
+
+  e = strchr (args, '\n');
+  if (e)
+    *e = '\0';
+  r = _rl_read_init_file (args, old_include_level + 1);
+
+  current_readline_init_file = old_init_file;
+  current_readline_init_lineno = old_line_number;
+  current_readline_init_include_level = old_include_level;
+
+  return r;
+}
+  
+/* Associate textual names with actual functions. */
+static struct {
+  char *name;
+  Function *function;
+} parser_directives [] = {
+  { "if", parser_if },
+  { "endif", parser_endif },
+  { "else", parser_else },
+  { "include", parser_include },
+  { (char *)0x0, (Function *)0x0 }
+};
+
+/* Handle a parser directive.  STATEMENT is the line of the directive
+   without any leading `$'. */
+static int
+handle_parser_directive (statement)
+     char *statement;
+{
+  register int i;
+  char *directive, *args;
+
+  /* Isolate the actual directive. */
+
+  /* Skip whitespace. */
+  for (i = 0; whitespace (statement[i]); i++);
+
+  directive = &statement[i];
+
+  for (; statement[i] && !whitespace (statement[i]); i++);
+
+  if (statement[i])
+    statement[i++] = '\0';
+
+  for (; statement[i] && whitespace (statement[i]); i++);
+
+  args = &statement[i];
+
+  /* Lookup the command, and act on it. */
+  for (i = 0; parser_directives[i].name; i++)
+    if (_rl_stricmp (directive, parser_directives[i].name) == 0)
+      {
+	(*parser_directives[i].function) (args);
+	return (0);
+      }
+
+  /* display an error message about the unknown parser directive */
+  _rl_init_file_error ("unknown parser directive");
+  return (1);
+}
+
+/* Read the binding command from STRING and perform it.
+   A key binding command looks like: Keyname: function-name\0,
+   a variable binding command looks like: set variable value.
+   A new-style keybinding looks like "\C-x\C-x": exchange-point-and-mark. */
+int
+rl_parse_and_bind (string)
+     char *string;
+{
+  char *funname, *kname;
+  register int c, i;
+  int key, equivalency;
+
+  while (string && whitespace (*string))
+    string++;
+
+  if (!string || !*string || *string == '#')
+    return 0;
+
+  /* If this is a parser directive, act on it. */
+  if (*string == '$')
+    {
+      handle_parser_directive (&string[1]);
+      return 0;
+    }
+
+  /* If we aren't supposed to be parsing right now, then we're done. */
+  if (_rl_parsing_conditionalized_out)
+    return 0;
+
+  i = 0;
+  /* If this keyname is a complex key expression surrounded by quotes,
+     advance to after the matching close quote.  This code allows the
+     backslash to quote characters in the key expression. */
+  if (*string == '"')
+    {
+      int passc = 0;
+
+      for (i = 1; c = string[i]; i++)
+	{
+	  if (passc)
+	    {
+	      passc = 0;
+	      continue;
+	    }
+
+	  if (c == '\\')
+	    {
+	      passc++;
+	      continue;
+	    }
+
+	  if (c == '"')
+	    break;
+	}
+      /* If we didn't find a closing quote, abort the line. */
+      if (string[i] == '\0')
+        {
+          _rl_init_file_error ("no closing `\"' in key binding");
+          return 1;
+        }
+    }
+
+  /* Advance to the colon (:) or whitespace which separates the two objects. */
+  for (; (c = string[i]) && c != ':' && c != ' ' && c != '\t'; i++ );
+
+  equivalency = (c == ':' && string[i + 1] == '=');
+
+  /* Mark the end of the command (or keyname). */
+  if (string[i])
+    string[i++] = '\0';
+
+  /* If doing assignment, skip the '=' sign as well. */
+  if (equivalency)
+    string[i++] = '\0';
+
+  /* If this is a command to set a variable, then do that. */
+  if (_rl_stricmp (string, "set") == 0)
+    {
+      char *var = string + i;
+      char *value;
+
+      /* Make VAR point to start of variable name. */
+      while (*var && whitespace (*var)) var++;
+
+      /* Make value point to start of value string. */
+      value = var;
+      while (*value && !whitespace (*value)) value++;
+      if (*value)
+	*value++ = '\0';
+      while (*value && whitespace (*value)) value++;
+
+      rl_variable_bind (var, value);
+      return 0;
+    }
+
+  /* Skip any whitespace between keyname and funname. */
+  for (; string[i] && whitespace (string[i]); i++);
+  funname = &string[i];
+
+  /* Now isolate funname.
+     For straight function names just look for whitespace, since
+     that will signify the end of the string.  But this could be a
+     macro definition.  In that case, the string is quoted, so skip
+     to the matching delimiter.  We allow the backslash to quote the
+     delimiter characters in the macro body. */
+  /* This code exists to allow whitespace in macro expansions, which
+     would otherwise be gobbled up by the next `for' loop.*/
+  /* XXX - it may be desirable to allow backslash quoting only if " is
+     the quoted string delimiter, like the shell. */
+  if (*funname == '\'' || *funname == '"')
+    {
+      int delimiter = string[i++], passc;
+
+      for (passc = 0; c = string[i]; i++)
+	{
+	  if (passc)
+	    {
+	      passc = 0;
+	      continue;
+	    }
+
+	  if (c == '\\')
+	    {
+	      passc = 1;
+	      continue;
+	    }
+
+	  if (c == delimiter)
+	    break;
+	}
+      if (c)
+	i++;
+    }
+
+  /* Advance to the end of the string.  */
+  for (; string[i] && !whitespace (string[i]); i++);
+
+  /* No extra whitespace at the end of the string. */
+  string[i] = '\0';
+
+  /* Handle equivalency bindings here.  Make the left-hand side be exactly
+     whatever the right-hand evaluates to, including keymaps. */
+  if (equivalency)
+    {
+      return 0;
+    }
+
+  /* If this is a new-style key-binding, then do the binding with
+     rl_set_key ().  Otherwise, let the older code deal with it. */
+  if (*string == '"')
+    {
+      char *seq;
+      register int j, k, passc;
+
+      seq = xmalloc (1 + strlen (string));
+      for (j = 1, k = passc = 0; string[j]; j++)
+	{
+	  /* Allow backslash to quote characters, but leave them in place.
+	     This allows a string to end with a backslash quoting another
+	     backslash, or with a backslash quoting a double quote.  The
+	     backslashes are left in place for rl_translate_keyseq (). */
+	  if (passc || (string[j] == '\\'))
+	    {
+	      seq[k++] = string[j];
+	      passc = !passc;
+	      continue;
+	    }
+
+	  if (string[j] == '"')
+	    break;
+
+	  seq[k++] = string[j];
+	}
+      seq[k] = '\0';
+
+      /* Binding macro? */
+      if (*funname == '\'' || *funname == '"')
+	{
+	  j = strlen (funname);
+
+	  /* Remove the delimiting quotes from each end of FUNNAME. */
+	  if (j && funname[j - 1] == *funname)
+	    funname[j - 1] = '\0';
+
+	  rl_macro_bind (seq, &funname[1], _rl_keymap);
+	}
+      else
+	rl_set_key (seq, rl_named_function (funname), _rl_keymap);
+
+      free (seq);
+      return 0;
+    }
+
+  /* Get the actual character we want to deal with. */
+  kname = strrchr (string, '-');
+  if (!kname)
+    kname = string;
+  else
+    kname++;
+
+  key = glean_key_from_name (kname);
+
+  /* Add in control and meta bits. */
+  if (substring_member_of_array (string, possible_control_prefixes))
+    key = CTRL (_rl_to_upper (key));
+
+  if (substring_member_of_array (string, possible_meta_prefixes))
+    key = META (key);
+
+  /* Temporary.  Handle old-style keyname with macro-binding. */
+  if (*funname == '\'' || *funname == '"')
+    {
+      unsigned char useq[2];
+      int fl = strlen (funname);
+
+      useq[0] = key; useq[1] = '\0';
+      if (fl && funname[fl - 1] == *funname)
+	funname[fl - 1] = '\0';
+
+      rl_macro_bind (useq, &funname[1], _rl_keymap);
+    }
+#if defined (PREFIX_META_HACK)
+  /* Ugly, but working hack to keep prefix-meta around. */
+  else if (_rl_stricmp (funname, "prefix-meta") == 0)
+    {
+      char seq[2];
+
+      seq[0] = key;
+      seq[1] = '\0';
+      rl_generic_bind (ISKMAP, seq, (char *)emacs_meta_keymap, _rl_keymap);
+    }
+#endif /* PREFIX_META_HACK */
+  else
+    rl_bind_key (key, rl_named_function (funname));
+  return 0;
+}
+
+/* Simple structure for boolean readline variables (i.e., those that can
+   have one of two values; either "On" or 1 for truth, or "Off" or 0 for
+   false. */
+
+static struct {
+  char *name;
+  int *value;
+} boolean_varlist [] = {
+#if defined (PAREN_MATCHING)
+  { "blink-matching-paren",	&rl_blink_matching_paren },
+#endif
+  { "completion-ignore-case",	&_rl_completion_case_fold },
+  { "convert-meta",		&_rl_convert_meta_chars_to_ascii },
+  { "disable-completion",	&rl_inhibit_completion },
+  { "enable-keypad",		&_rl_enable_keypad },
+  { "expand-tilde",		&rl_complete_with_tilde_expansion },
+  { "horizontal-scroll-mode",	&_rl_horizontal_scroll_mode },
+  { "input-meta",		&_rl_meta_flag },
+  { "mark-directories",		&_rl_complete_mark_directories },
+  { "mark-modified-lines",	&_rl_mark_modified_lines },
+  { "meta-flag",		&_rl_meta_flag },
+  { "output-meta",		&_rl_output_meta_chars },
+  { "print-completions-horizontally", &_rl_print_completions_horizontally },
+  { "show-all-if-ambiguous",	&_rl_complete_show_all },
+#if defined (VISIBLE_STATS)
+  { "visible-stats",		&rl_visible_stats },
+#endif /* VISIBLE_STATS */
+  { (char *)NULL, (int *)NULL }
+};
+
+int
+rl_variable_bind (name, value)
+     char *name, *value;
+{
+  register int i;
+
+  /* Check for simple variables first. */
+  for (i = 0; boolean_varlist[i].name; i++)
+    {
+      if (_rl_stricmp (name, boolean_varlist[i].name) == 0)
+	{
+	  /* A variable is TRUE if the "value" is "on", "1" or "". */
+	  *boolean_varlist[i].value = *value == 0 ||
+	  			      _rl_stricmp (value, "on") == 0 ||
+				      (value[0] == '1' && value[1] == '\0');
+	  return 0;
+	}
+    }
+
+  /* Not a boolean variable, so check for specials. */
+
+  /* Editing mode change? */
+  if (_rl_stricmp (name, "editing-mode") == 0)
+    {
+      if (_rl_strnicmp (value, "vi", 2) == 0)
+	{
+#if defined (VI_MODE)
+	  _rl_keymap = vi_insertion_keymap;
+	  rl_editing_mode = vi_mode;
+#endif /* VI_MODE */
+	}
+      else if (_rl_strnicmp (value, "emacs", 5) == 0)
+	{
+	  _rl_keymap = emacs_standard_keymap;
+	  rl_editing_mode = emacs_mode;
+	}
+    }
+
+  /* Comment string change? */
+  else if (_rl_stricmp (name, "comment-begin") == 0)
+    {
+      if (*value)
+	{
+	  if (_rl_comment_begin)
+	    free (_rl_comment_begin);
+
+	  _rl_comment_begin = savestring (value);
+	}
+    }
+  else if (_rl_stricmp (name, "completion-query-items") == 0)
+    {
+      int nval = 100;
+      if (*value)
+	{
+	  nval = atoi (value);
+	  if (nval < 0)
+	    nval = 0;
+	}
+      rl_completion_query_items = nval;
+    }
+  else if (_rl_stricmp (name, "keymap") == 0)
+    {
+      Keymap kmap;
+      kmap = rl_get_keymap_by_name (value);
+      if (kmap)
+        rl_set_keymap (kmap);
+    }
+  else if (_rl_stricmp (name, "bell-style") == 0)
+    {
+      if (!*value)
+        _rl_bell_preference = AUDIBLE_BELL;
+      else
+        {
+          if (_rl_stricmp (value, "none") == 0 || _rl_stricmp (value, "off") == 0)
+            _rl_bell_preference = NO_BELL;
+          else if (_rl_stricmp (value, "audible") == 0 || _rl_stricmp (value, "on") == 0)
+            _rl_bell_preference = AUDIBLE_BELL;
+          else if (_rl_stricmp (value, "visible") == 0)
+            _rl_bell_preference = VISIBLE_BELL;
+        }
+    }
+  else if (_rl_stricmp (name, "prefer-visible-bell") == 0)
+    {
+      /* Backwards compatibility. */
+      if (*value && (_rl_stricmp (value, "on") == 0 ||
+		     (*value == '1' && !value[1])))
+        _rl_bell_preference = VISIBLE_BELL;
+      else
+        _rl_bell_preference = AUDIBLE_BELL;
+    }
+
+  /* For the time being, unknown variable names are simply ignored. */
+  return 0;
+}
+
+/* Return the character which matches NAME.
+   For example, `Space' returns ' '. */
+
+typedef struct {
+  char *name;
+  int value;
+} assoc_list;
+
+static assoc_list name_key_alist[] = {
+  { "DEL", 0x7f },
+  { "ESC", '\033' },
+  { "Escape", '\033' },
+  { "LFD", '\n' },
+  { "Newline", '\n' },
+  { "RET", '\r' },
+  { "Return", '\r' },
+  { "Rubout", 0x7f },
+  { "SPC", ' ' },
+  { "Space", ' ' },
+  { "Tab", 0x09 },
+  { (char *)0x0, 0 }
+};
+
+static int
+glean_key_from_name (name)
+     char *name;
+{
+  register int i;
+
+  for (i = 0; name_key_alist[i].name; i++)
+    if (_rl_stricmp (name, name_key_alist[i].name) == 0)
+      return (name_key_alist[i].value);
+
+  return (*(unsigned char *)name);	/* XXX was return (*name) */
+}
+
+/* Auxiliary functions to manage keymaps. */
+static struct {
+  char *name;
+  Keymap map;
+} keymap_names[] = {
+  { "emacs", emacs_standard_keymap },
+  { "emacs-standard", emacs_standard_keymap },
+  { "emacs-meta", emacs_meta_keymap },
+  { "emacs-ctlx", emacs_ctlx_keymap },
+#if defined (VI_MODE)
+  { "vi", vi_movement_keymap },
+  { "vi-move", vi_movement_keymap },
+  { "vi-command", vi_movement_keymap },
+  { "vi-insert", vi_insertion_keymap },
+#endif /* VI_MODE */
+  { (char *)0x0, (Keymap)0x0 }
+};
+
+Keymap
+rl_get_keymap_by_name (name)
+     char *name;
+{
+  register int i;
+
+  for (i = 0; keymap_names[i].name; i++)
+    if (strcmp (name, keymap_names[i].name) == 0)
+      return (keymap_names[i].map);
+  return ((Keymap) NULL);
+}
+
+char *
+rl_get_keymap_name (map)
+     Keymap map;
+{
+  register int i;
+  for (i = 0; keymap_names[i].name; i++)
+    if (map == keymap_names[i].map)
+      return (keymap_names[i].name);
+  return ((char *)NULL);
+}
+  
+void
+rl_set_keymap (map)
+     Keymap map;
+{
+  if (map)
+    _rl_keymap = map;
+}
+
+Keymap
+rl_get_keymap ()
+{
+  return (_rl_keymap);
+}
+
+void
+rl_set_keymap_from_edit_mode ()
+{
+  if (rl_editing_mode == emacs_mode)
+    _rl_keymap = emacs_standard_keymap;
+#if defined (VI_MODE)
+  else if (rl_editing_mode == vi_mode)
+    _rl_keymap = vi_insertion_keymap;
+#endif /* VI_MODE */
+}
+
+char *
+rl_get_keymap_name_from_edit_mode ()
+{
+  if (rl_editing_mode == emacs_mode)
+    return "emacs";
+#if defined (VI_MODE)
+  else if (rl_editing_mode == vi_mode)
+    return "vi";
+#endif /* VI_MODE */
+  else
+    return "none";
+}
+
+/* **************************************************************** */
+/*								    */
+/*		  Key Binding and Function Information		    */
+/*								    */
+/* **************************************************************** */
+
+/* Each of the following functions produces information about the
+   state of keybindings and functions known to Readline.  The info
+   is always printed to rl_outstream, and in such a way that it can
+   be read back in (i.e., passed to rl_parse_and_bind (). */
+
+/* Print the names of functions known to Readline. */
+void
+rl_list_funmap_names ()
+{
+  register int i;
+  char **funmap_names;
+
+  funmap_names = rl_funmap_names ();
+
+  if (!funmap_names)
+    return;
+
+  for (i = 0; funmap_names[i]; i++)
+    fprintf (rl_outstream, "%s\n", funmap_names[i]);
+
+  free (funmap_names);
+}
+
+static char *
+_rl_get_keyname (key)
+     int key;
+{
+  char *keyname;
+  int i, c, v;
+
+  keyname = (char *)xmalloc (8);
+
+  c = key;
+  /* Since this is going to be used to write out keysequence-function
+     pairs for possible inclusion in an inputrc file, we don't want to
+     do any special meta processing on KEY. */
+
+#if 0
+  /* We might want to do this, but the old version of the code did not. */
+
+  /* If this is an escape character, we don't want to do any more processing.
+     Just add the special ESC key sequence and return. */
+  if (c == ESC)
+    {
+      keyseq[0] = '\\';
+      keyseq[1] = 'e';
+      keyseq[2] = '\0';
+      return keyseq;
+    }
+#endif
+
+  /* RUBOUT is translated directly into \C-? */
+  if (key == RUBOUT)
+    {
+      keyname[0] = '\\';
+      keyname[1] = 'C';
+      keyname[2] = '-';
+      keyname[3] = '?';
+      keyname[4] = '\0';
+      return keyname;
+    }
+
+  i = 0;
+  /* Now add special prefixes needed for control characters.  This can
+     potentially change C. */
+  if (CTRL_CHAR (c))
+    {
+      keyname[i++] = '\\';
+      keyname[i++] = 'C';
+      keyname[i++] = '-';
+      c = _rl_to_lower (UNCTRL (c));
+    }
+
+  /* XXX experimental code.  Turn the characters that are not ASCII or
+     ISO Latin 1 (128 - 159) into octal escape sequences (\200 - \237).
+     This changes C. */
+  if (c >= 128 && c <= 159)
+    {
+      keyname[i++] = '\\';
+      keyname[i++] = '2';
+      c -= 128;
+      keyname[i++] = (c / 8) + '0';
+      c = (c % 8) + '0';
+    }
+
+  /* Now, if the character needs to be quoted with a backslash, do that. */
+  if (c == '\\' || c == '"')
+    keyname[i++] = '\\';
+
+  /* Now add the key, terminate the string, and return it. */
+  keyname[i++] = (char) c;
+  keyname[i] = '\0';
+
+  return keyname;
+}
+
+/* Return a NULL terminated array of strings which represent the key
+   sequences that are used to invoke FUNCTION in MAP. */
+char **
+rl_invoking_keyseqs_in_map (function, map)
+     Function *function;
+     Keymap map;
+{
+  register int key;
+  char **result;
+  int result_index, result_size;
+
+  result = (char **)NULL;
+  result_index = result_size = 0;
+
+  for (key = 0; key < KEYMAP_SIZE; key++)
+    {
+      switch (map[key].type)
+	{
+	case ISMACR:
+	  /* Macros match, if, and only if, the pointers are identical.
+	     Thus, they are treated exactly like functions in here. */
+	case ISFUNC:
+	  /* If the function in the keymap is the one we are looking for,
+	     then add the current KEY to the list of invoking keys. */
+	  if (map[key].function == function)
+	    {
+	      char *keyname;
+
+	      keyname = _rl_get_keyname (key);
+
+	      if (result_index + 2 > result_size)
+	        {
+	          result_size += 10;
+		  result = (char **) xrealloc (result, result_size * sizeof (char *));
+	        }
+
+	      result[result_index++] = keyname;
+	      result[result_index] = (char *)NULL;
+	    }
+	  break;
+
+	case ISKMAP:
+	  {
+	    char **seqs;
+	    register int i;
+
+	    /* Find the list of keyseqs in this map which have FUNCTION as
+	       their target.  Add the key sequences found to RESULT. */
+	    if (map[key].function)
+	      seqs =
+	        rl_invoking_keyseqs_in_map (function, FUNCTION_TO_KEYMAP (map, key));
+	    else
+	      break;
+
+	    if (seqs == 0)
+	      break;
+
+	    for (i = 0; seqs[i]; i++)
+	      {
+		char *keyname = (char *)xmalloc (6 + strlen (seqs[i]));
+
+		if (key == ESC)
+		  sprintf (keyname, "\\e");
+		else if (CTRL_CHAR (key))
+		  sprintf (keyname, "\\C-%c", _rl_to_lower (UNCTRL (key)));
+		else if (key == RUBOUT)
+		  sprintf (keyname, "\\C-?");
+		else if (key == '\\' || key == '"')
+		  {
+		    keyname[0] = '\\';
+		    keyname[1] = (char) key;
+		    keyname[2] = '\0';
+		  }
+		else
+		  {
+		    keyname[0] = (char) key;
+		    keyname[1] = '\0';
+		  }
+		
+		strcat (keyname, seqs[i]);
+		free (seqs[i]);
+
+		if (result_index + 2 > result_size)
+		  {
+		    result_size += 10;
+		    result = (char **) xrealloc (result, result_size * sizeof (char *));
+		  }
+
+		result[result_index++] = keyname;
+		result[result_index] = (char *)NULL;
+	      }
+
+	    free (seqs);
+	  }
+	  break;
+	}
+    }
+  return (result);
+}
+
+/* Return a NULL terminated array of strings which represent the key
+   sequences that can be used to invoke FUNCTION using the current keymap. */
+char **
+rl_invoking_keyseqs (function)
+     Function *function;
+{
+  return (rl_invoking_keyseqs_in_map (function, _rl_keymap));
+}
+
+/* Print all of the functions and their bindings to rl_outstream.  If
+   PRINT_READABLY is non-zero, then print the output in such a way
+   that it can be read back in. */
+void
+rl_function_dumper (print_readably)
+     int print_readably;
+{
+  register int i;
+  char **names;
+  char *name;
+
+  names = rl_funmap_names ();
+
+  fprintf (rl_outstream, "\n");
+
+  for (i = 0; name = names[i]; i++)
+    {
+      Function *function;
+      char **invokers;
+
+      function = rl_named_function (name);
+      invokers = rl_invoking_keyseqs_in_map (function, _rl_keymap);
+
+      if (print_readably)
+	{
+	  if (!invokers)
+	    fprintf (rl_outstream, "# %s (not bound)\n", name);
+	  else
+	    {
+	      register int j;
+
+	      for (j = 0; invokers[j]; j++)
+		{
+		  fprintf (rl_outstream, "\"%s\": %s\n",
+			   invokers[j], name);
+		  free (invokers[j]);
+		}
+
+	      free (invokers);
+	    }
+	}
+      else
+	{
+	  if (!invokers)
+	    fprintf (rl_outstream, "%s is not bound to any keys\n",
+		     name);
+	  else
+	    {
+	      register int j;
+
+	      fprintf (rl_outstream, "%s can be found on ", name);
+
+	      for (j = 0; invokers[j] && j < 5; j++)
+		{
+		  fprintf (rl_outstream, "\"%s\"%s", invokers[j],
+			   invokers[j + 1] ? ", " : ".\n");
+		}
+
+	      if (j == 5 && invokers[j])
+		fprintf (rl_outstream, "...\n");
+
+	      for (j = 0; invokers[j]; j++)
+		free (invokers[j]);
+
+	      free (invokers);
+	    }
+	}
+    }
+}
+
+/* Print all of the current functions and their bindings to
+   rl_outstream.  If an explicit argument is given, then print
+   the output in such a way that it can be read back in. */
+int
+rl_dump_functions (count, key)
+     int count, key;
+{
+  if (rl_dispatching)
+    fprintf (rl_outstream, "\r\n");
+  rl_function_dumper (rl_explicit_arg);
+  rl_on_new_line ();
+  return (0);
+}
+
+static void
+_rl_macro_dumper_internal (print_readably, map, prefix)
+     int print_readably;
+     Keymap map;
+     char *prefix;
+{
+  register int key;
+  char *keyname, *out;
+  int prefix_len;
+
+  for (key = 0; key < KEYMAP_SIZE; key++)
+    {
+      switch (map[key].type)
+	{
+	case ISMACR:
+	  keyname = _rl_get_keyname (key);
+#if 0
+	  out = (char *)map[key].function;
+#else
+	  out = _rl_untranslate_macro_value ((char *)map[key].function);
+#endif
+	  if (print_readably)
+	    fprintf (rl_outstream, "\"%s%s\": \"%s\"\n", prefix ? prefix : "",
+						         keyname,
+						         out ? out : "");
+	  else
+	    fprintf (rl_outstream, "%s%s outputs %s\n", prefix ? prefix : "",
+							keyname,
+							out ? out : "");
+	  free (keyname);
+#if 1
+	  free (out);
+#endif
+	  break;
+	case ISFUNC:
+	  break;
+	case ISKMAP:
+	  prefix_len = prefix ? strlen (prefix) : 0;
+	  if (key == ESC)
+	    {
+	      keyname = xmalloc (3 + prefix_len);
+	      if (prefix)
+		strcpy (keyname, prefix);
+	      keyname[prefix_len] = '\\';
+	      keyname[prefix_len + 1] = 'e';
+	      keyname[prefix_len + 2] = '\0';
+	    }
+	  else
+	    {
+	      keyname = _rl_get_keyname (key);
+	      if (prefix)
+		{
+		  out = xmalloc (strlen (keyname) + prefix_len + 1);
+		  strcpy (out, prefix);
+		  strcpy (out + prefix_len, keyname);
+		  free (keyname);
+		  keyname = out;
+		}
+	    }
+
+	  _rl_macro_dumper_internal (print_readably, FUNCTION_TO_KEYMAP (map, key), keyname);
+	  free (keyname);
+	  break;
+	}
+    }
+}
+
+void
+rl_macro_dumper (print_readably)
+     int print_readably;
+{
+  _rl_macro_dumper_internal (print_readably, _rl_keymap, (char *)NULL);
+}
+
+int
+rl_dump_macros (count, key)
+     int count, key;
+{
+  if (rl_dispatching)
+    fprintf (rl_outstream, "\r\n");
+  rl_macro_dumper (rl_explicit_arg);
+  rl_on_new_line ();
+  return (0);
+}
+
+void
+rl_variable_dumper (print_readably)
+     int print_readably;
+{
+  int i;
+  char *kname;
+
+  for (i = 0; boolean_varlist[i].name; i++)
+    {
+      if (print_readably)
+        fprintf (rl_outstream, "set %s %s\n", boolean_varlist[i].name,
+			       *boolean_varlist[i].value ? "on" : "off");
+      else
+        fprintf (rl_outstream, "%s is set to `%s'\n", boolean_varlist[i].name,
+			       *boolean_varlist[i].value ? "on" : "off");
+    }
+
+  /* bell-style */
+  switch (_rl_bell_preference)
+    {
+    case NO_BELL:
+      kname = "none"; break;
+    case VISIBLE_BELL:
+      kname = "visible"; break;
+    case AUDIBLE_BELL:
+    default:
+      kname = "audible"; break;
+    }
+  if (print_readably)
+    fprintf (rl_outstream, "set bell-style %s\n", kname);
+  else
+    fprintf (rl_outstream, "bell-style is set to `%s'\n", kname);
+
+  /* comment-begin */
+  if (print_readably)
+    fprintf (rl_outstream, "set comment-begin %s\n", _rl_comment_begin ? _rl_comment_begin : RL_COMMENT_BEGIN_DEFAULT);
+  else
+    fprintf (rl_outstream, "comment-begin is set to `%s'\n", _rl_comment_begin ? _rl_comment_begin : "");
+
+  /* completion-query-items */
+  if (print_readably)
+    fprintf (rl_outstream, "set completion-query-items %d\n", rl_completion_query_items);
+  else
+    fprintf (rl_outstream, "completion-query-items is set to `%d'\n", rl_completion_query_items);
+
+  /* editing-mode */
+  if (print_readably)
+    fprintf (rl_outstream, "set editing-mode %s\n", (rl_editing_mode == emacs_mode) ? "emacs" : "vi");
+  else
+    fprintf (rl_outstream, "editing-mode is set to `%s'\n", (rl_editing_mode == emacs_mode) ? "emacs" : "vi");
+
+  /* keymap */
+  kname = rl_get_keymap_name (_rl_keymap);
+  if (kname == 0)
+    kname = rl_get_keymap_name_from_edit_mode ();
+  if (print_readably)
+    fprintf (rl_outstream, "set keymap %s\n", kname ? kname : "none");
+  else
+    fprintf (rl_outstream, "keymap is set to `%s'\n", kname ? kname : "none");
+}
+
+/* Print all of the current variables and their values to
+   rl_outstream.  If an explicit argument is given, then print
+   the output in such a way that it can be read back in. */
+int
+rl_dump_variables (count, key)
+     int count, key;
+{
+  if (rl_dispatching)
+    fprintf (rl_outstream, "\r\n");
+  rl_variable_dumper (rl_explicit_arg);
+  rl_on_new_line ();
+  return (0);
+}
+
+/* Bind key sequence KEYSEQ to DEFAULT_FUNC if KEYSEQ is unbound. */
+void
+_rl_bind_if_unbound (keyseq, default_func)
+     char *keyseq;
+     Function *default_func;
+{
+  Function *func;
+
+  if (keyseq)
+    {
+      func = rl_function_of_keyseq (keyseq, _rl_keymap, (int *)NULL);
+      if (!func || func == rl_do_lowercase_version)
+	rl_set_key (keyseq, default_func, _rl_keymap);
+    }
+}
+
+/* Return non-zero if any members of ARRAY are a substring in STRING. */
+static int
+substring_member_of_array (string, array)
+     char *string, **array;
+{
+  while (*array)
+    {
+      if (_rl_strindex (string, *array))
+	return (1);
+      array++;
+    }
+  return (0);
+}
diff --git a/readline/callback.c b/readline/callback.c
new file mode 100644
index 00000000000..34dbc724611
--- /dev/null
+++ b/readline/callback.c
@@ -0,0 +1,149 @@
+/* callback.c -- functions to use readline as an X `callback' mechanism. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include "rlconf.h"
+
+#if defined (READLINE_CALLBACKS)
+
+#include <sys/types.h>
+#include <stdio.h>
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+#include "readline.h"
+
+extern void readline_internal_startup ();
+extern char *readline_internal_teardown ();
+extern int readline_internal_char ();
+extern void _rl_init_line_state ();
+
+extern int _rl_meta_flag;
+extern char *rl_prompt;
+extern int rl_visible_prompt_length;
+
+/* **************************************************************** */
+/*								    */
+/*			Callback Readline Functions                 */
+/*								    */
+/* **************************************************************** */
+
+/* Allow using readline in situations where a program may have multiple
+   things to handle at once, and dispatches them via select().  Call
+   rl_callback_handler_install() with the prompt and a function to call
+   whenever a complete line of input is ready.  The user must then
+   call rl_callback_read_char() every time some input is available, and 
+   rl_callback_read_char() will call the user's function with the complete
+   text read in at each end of line.  The terminal is kept prepped and
+   signals handled all the time, except during calls to the user's function. */
+
+VFunction *rl_linefunc;		/* user callback function */
+static int in_handler;		/* terminal_prepped and signals set? */
+
+/* Make sure the terminal is set up, initialize readline, and prompt. */
+static void
+_rl_callback_newline ()
+{
+  rl_initialize ();
+
+  if (in_handler == 0)
+    {
+      in_handler = 1;
+
+      (*rl_prep_term_function) (_rl_meta_flag);
+
+#if defined (HANDLE_SIGNALS)
+      rl_set_signals ();
+#endif
+    }
+
+  readline_internal_setup ();
+}
+
+/* Install a readline handler, set up the terminal, and issue the prompt. */
+void
+rl_callback_handler_install (prompt, linefunc)
+     char *prompt;
+     VFunction *linefunc;
+{
+  rl_prompt = prompt;
+  rl_visible_prompt_length = rl_prompt ? rl_expand_prompt (rl_prompt) : 0;
+  rl_linefunc = linefunc;
+  _rl_callback_newline ();
+}
+
+/* Read one character, and dispatch to the handler if it ends the line. */
+void
+rl_callback_read_char ()
+{
+  char *line;
+  int eof;
+
+  if (rl_linefunc == NULL)
+    {
+      fprintf (stderr, "readline: readline_callback_read_char() called with no handler!\r\n");
+      abort ();
+    }
+
+  eof = readline_internal_char ();
+
+  if (rl_done)
+    {
+      line = readline_internal_teardown (eof);
+
+      (*rl_deprep_term_function) ();
+#if defined (HANDLE_SIGNALS)
+      rl_clear_signals ();
+#endif
+      in_handler = 0;
+      (*rl_linefunc) (line);
+
+    /* If the user did not clear out the line, do it for him. */
+    if (rl_line_buffer[0])
+      _rl_init_line_state ();
+
+    /* Redisplay the prompt if readline_handler_{install,remove} not called. */
+      if (in_handler == 0 && rl_linefunc)
+	_rl_callback_newline ();
+    }
+}
+
+/* Remove the handler, and make sure the terminal is in its normal state. */
+void
+rl_callback_handler_remove ()
+{
+  rl_linefunc = NULL;
+  if (in_handler)
+    {
+      in_handler = 0;
+      (*rl_deprep_term_function) ();
+#if defined (HANDLE_SIGNALS)
+      rl_clear_signals ();
+#endif
+    }
+}
+
+#endif
diff --git a/readline/chardefs.h b/readline/chardefs.h
new file mode 100644
index 00000000000..3e9e2737706
--- /dev/null
+++ b/readline/chardefs.h
@@ -0,0 +1,140 @@
+/* chardefs.h -- Character definitions for readline. */
+
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#ifndef _CHARDEFS_H_
+#define _CHARDEFS_H_
+
+#include <ctype.h>
+
+#if defined (HAVE_CONFIG_H)
+#  if defined (HAVE_STRING_H)
+#    include <string.h>
+#  else
+#    include <strings.h>
+#  endif /* HAVE_STRING_H */
+#else
+#  include <string.h>
+#endif /* !HAVE_CONFIG_H */
+
+#ifndef whitespace
+#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
+#endif
+
+#ifdef CTRL
+#undef CTRL
+#endif
+
+/* Some character stuff. */
+#define control_character_threshold 0x020   /* Smaller than this is control. */
+#define control_character_mask 0x1f	    /* 0x20 - 1 */
+#define meta_character_threshold 0x07f	    /* Larger than this is Meta. */
+#define control_character_bit 0x40	    /* 0x000000, must be off. */
+#define meta_character_bit 0x080	    /* x0000000, must be on. */
+#define largest_char 255		    /* Largest character value. */
+
+#define CTRL_CHAR(c) ((c) < control_character_threshold && (c) >= 0)
+#define META_CHAR(c) ((c) > meta_character_threshold && (c) <= largest_char)
+
+#define CTRL(c) ((c) & control_character_mask)
+#define META(c) ((c) | meta_character_bit)
+
+#define UNMETA(c) ((c) & (~meta_character_bit))
+#define UNCTRL(c) _rl_to_upper(((c)|control_character_bit))
+
+/* Old versions
+#define _rl_lowercase_p(c) (((c) > ('a' - 1) && (c) < ('z' + 1)))
+#define _rl_uppercase_p(c) (((c) > ('A' - 1) && (c) < ('Z' + 1)))
+#define _rl_digit_p(c)  ((c) >= '0' && (c) <= '9')
+*/
+
+#define _rl_lowercase_p(c) (islower(c))
+#define _rl_uppercase_p(c) (isupper(c))
+#define _rl_digit_p(x)  (isdigit (x))
+
+#define _rl_pure_alphabetic(c) (_rl_lowercase_p(c) || _rl_uppercase_p(c))
+#define ALPHABETIC(c)	(_rl_lowercase_p(c) || _rl_uppercase_p(c) || _rl_digit_p(c))
+
+/* Old versions
+#  define _rl_to_upper(c) (_rl_lowercase_p(c) ? ((c) - 32) : (c))
+#  define _rl_to_lower(c) (_rl_uppercase_p(c) ? ((c) + 32) : (c))
+*/
+
+#ifndef _rl_to_upper
+#  define _rl_to_upper(c) (islower(c) ? toupper(c) : (c))
+#  define _rl_to_lower(c) (isupper(c) ? tolower(c) : (c))
+#endif
+
+#ifndef _rl_digit_value
+#define _rl_digit_value(x) ((x) - '0')
+#endif
+
+#ifndef NEWLINE
+#define NEWLINE '\n'
+#endif
+
+#ifndef RETURN
+#define RETURN CTRL('M')
+#endif
+
+#ifndef RUBOUT
+#define RUBOUT 0x7f
+#endif
+
+#ifndef TAB
+#define TAB '\t'
+#endif
+
+#ifdef ABORT_CHAR
+#undef ABORT_CHAR
+#endif
+#define ABORT_CHAR CTRL('G')
+
+#ifdef PAGE
+#undef PAGE
+#endif
+#define PAGE CTRL('L')
+
+#ifdef SPACE
+#undef SPACE
+#endif
+#define SPACE ' '	/* XXX - was 0x20 */
+
+#ifdef ESC
+#undef ESC
+#endif
+#define ESC CTRL('[')
+
+#ifndef ISOCTAL
+#define ISOCTAL(c)      ((c) >= '0' && (c) <= '7')
+#endif
+#define OCTVALUE(c)     ((c) - '0')
+
+#ifndef isxdigit
+#  define isxdigit(c)   (isdigit((c)) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F'))
+#endif
+
+#define HEXVALUE(c) \
+  (((c) >= 'a' && (c) <= 'f') \
+  	? (c)-'a'+10 \
+  	: (c) >= 'A' && (c) <= 'F' ? (c)-'A'+10 : (c)-'0')
+
+#endif  /* _CHARDEFS_H_ */
diff --git a/readline/complete.c b/readline/complete.c
new file mode 100644
index 00000000000..985e8981eee
--- /dev/null
+++ b/readline/complete.c
@@ -0,0 +1,1702 @@
+/* complete.c -- filename completion for readline. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+#include <fcntl.h>
+#if defined (HAVE_SYS_FILE_H)
+#include <sys/file.h>
+#endif
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <stdio.h>
+
+#include <errno.h>
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+#include <pwd.h>
+#if !defined (HAVE_GETPW_DECLS)
+extern struct passwd *getpwent ();
+#endif /* USG && !HAVE_GETPW_DECLS */
+
+/* ISC systems don't define getpwent() if _POSIX_SOURCE is defined. */
+#if defined (isc386) && defined (_POSIX_SOURCE)
+#  if defined (__STDC__)
+extern struct passwd *getpwent (void);
+#  else
+extern struct passwd *getpwent ();
+#  endif /* !__STDC__ */
+#endif /* isc386 && _POSIX_SOURCE */
+
+#include "posixdir.h"
+#include "posixstat.h"
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+
+extern char *tilde_expand ();
+extern char *rl_copy_text ();
+extern void _rl_abort_internal ();
+extern int _rl_qsort_string_compare ();
+extern void _rl_replace_text ();
+
+extern Function *rl_last_func;
+extern int rl_editing_mode;
+extern int screenwidth;
+
+extern void _rl_move_vert ();
+extern int _rl_vis_botlin;
+extern int rl_display_fixed;
+
+/* Forward declarations for functions defined and used in this file. */
+char *filename_completion_function ();
+char **completion_matches ();
+
+#if defined (VISIBLE_STATS)
+#  if !defined (X_OK)
+#    define X_OK 1
+#  endif
+static int stat_char ();
+#endif
+
+static char *rl_quote_filename ();
+static char *rl_strpbrk ();
+
+static char **remove_duplicate_matches ();
+static void insert_match ();
+static int append_to_match ();
+static void insert_all_matches ();
+static void display_matches ();
+static int compute_lcd_of_matches ();
+
+extern char *xmalloc (), *xrealloc ();
+
+/* **************************************************************** */
+/*								    */
+/*	Completion matching, from readline's point of view.	    */
+/*								    */
+/* **************************************************************** */
+
+/* Variables known only to the readline library. */
+
+/* If non-zero, non-unique completions always show the list of matches. */
+int _rl_complete_show_all = 0;
+
+/* If non-zero, completed directory names have a slash appended. */
+int _rl_complete_mark_directories = 1;
+
+/* If non-zero, completions are printed horizontally in alphabetical order,
+   like `ls -x'. */
+int _rl_print_completions_horizontally;
+
+/* Non-zero means that case is not significant in filename completion. */
+int _rl_completion_case_fold;
+
+/* Global variables available to applications using readline. */
+
+#if defined (VISIBLE_STATS)
+/* Non-zero means add an additional character to each filename displayed
+   during listing completion iff rl_filename_completion_desired which helps
+   to indicate the type of file being listed. */
+int rl_visible_stats = 0;
+#endif /* VISIBLE_STATS */
+
+/* If non-zero, then this is the address of a function to call when
+   completing on a directory name.  The function is called with
+   the address of a string (the current directory name) as an arg. */
+Function *rl_directory_completion_hook = (Function *)NULL;
+
+/* Non-zero means readline completion functions perform tilde expansion. */
+int rl_complete_with_tilde_expansion = 0;
+
+/* Pointer to the generator function for completion_matches ().
+   NULL means to use filename_completion_function (), the default filename
+   completer. */
+Function *rl_completion_entry_function = (Function *)NULL;
+
+/* Pointer to alternative function to create matches.
+   Function is called with TEXT, START, and END.
+   START and END are indices in RL_LINE_BUFFER saying what the boundaries
+   of TEXT are.
+   If this function exists and returns NULL then call the value of
+   rl_completion_entry_function to try to match, otherwise use the
+   array of strings returned. */
+CPPFunction *rl_attempted_completion_function = (CPPFunction *)NULL;
+
+/* Non-zero means to suppress normal filename completion after the
+   user-specified completion function has been called. */
+int rl_attempted_completion_over = 0;
+
+/* Set to a character indicating the type of completion being performed
+   by rl_complete_internal, available for use by application completion
+   functions. */
+int rl_completion_type = 0;
+
+/* Up to this many items will be displayed in response to a
+   possible-completions call.  After that, we ask the user if
+   she is sure she wants to see them all. */
+int rl_completion_query_items = 100;
+
+/* The basic list of characters that signal a break between words for the
+   completer routine.  The contents of this variable is what breaks words
+   in the shell, i.e. " \t\n\"\\'`@$><=" */
+char *rl_basic_word_break_characters = " \t\n\"\\'`@$><=;|&{(";
+
+/* List of basic quoting characters. */
+char *rl_basic_quote_characters = "\"'";
+
+/* The list of characters that signal a break between words for
+   rl_complete_internal.  The default list is the contents of
+   rl_basic_word_break_characters.  */
+char *rl_completer_word_break_characters = (char *)NULL;
+
+/* List of characters which can be used to quote a substring of the line.
+   Completion occurs on the entire substring, and within the substring
+   rl_completer_word_break_characters are treated as any other character,
+   unless they also appear within this list. */
+char *rl_completer_quote_characters = (char *)NULL;
+
+/* List of characters that should be quoted in filenames by the completer. */
+char *rl_filename_quote_characters = (char *)NULL;
+
+/* List of characters that are word break characters, but should be left
+   in TEXT when it is passed to the completion function.  The shell uses
+   this to help determine what kind of completing to do. */
+char *rl_special_prefixes = (char *)NULL;
+
+/* If non-zero, then disallow duplicates in the matches. */
+int rl_ignore_completion_duplicates = 1;
+
+/* Non-zero means that the results of the matches are to be treated
+   as filenames.  This is ALWAYS zero on entry, and can only be changed
+   within a completion entry finder function. */
+int rl_filename_completion_desired = 0;
+
+/* Non-zero means that the results of the matches are to be quoted using
+   double quotes (or an application-specific quoting mechanism) if the
+   filename contains any characters in rl_filename_quote_chars.  This is
+   ALWAYS non-zero on entry, and can only be changed within a completion
+   entry finder function. */
+int rl_filename_quoting_desired = 1;
+
+/* This function, if defined, is called by the completer when real
+   filename completion is done, after all the matching names have been
+   generated. It is passed a (char**) known as matches in the code below.
+   It consists of a NULL-terminated array of pointers to potential
+   matching strings.  The 1st element (matches[0]) is the maximal
+   substring that is common to all matches. This function can re-arrange
+   the list of matches as required, but all elements of the array must be
+   free()'d if they are deleted. The main intent of this function is
+   to implement FIGNORE a la SunOS csh. */
+Function *rl_ignore_some_completions_function = (Function *)NULL;
+
+/* Set to a function to quote a filename in an application-specific fashion.
+   Called with the text to quote, the type of match found (single or multiple)
+   and a pointer to the quoting character to be used, which the function can
+   reset if desired. */
+CPFunction *rl_filename_quoting_function = rl_quote_filename;
+         
+/* Function to call to remove quoting characters from a filename.  Called
+   before completion is attempted, so the embedded quotes do not interfere
+   with matching names in the file system.  Readline doesn't do anything
+   with this; it's set only by applications. */
+CPFunction *rl_filename_dequoting_function = (CPFunction *)NULL;
+
+/* Function to call to decide whether or not a word break character is
+   quoted.  If a character is quoted, it does not break words for the
+   completer. */
+Function *rl_char_is_quoted_p = (Function *)NULL;
+
+/* Character appended to completed words when at the end of the line.  The
+   default is a space. */
+int rl_completion_append_character = ' ';
+
+/* If non-zero, inhibit completion (temporarily). */
+int rl_inhibit_completion;
+
+/* Variables local to this file. */
+
+/* Local variable states what happened during the last completion attempt. */
+static int completion_changed_buffer;
+
+/*************************************/
+/*				     */
+/*    Bindable completion functions  */
+/*				     */
+/*************************************/
+
+/* Complete the word at or before point.  You have supplied the function
+   that does the initial simple matching selection algorithm (see
+   completion_matches ()).  The default is to do filename completion. */
+int
+rl_complete (ignore, invoking_key)
+     int ignore, invoking_key;
+{
+  if (rl_inhibit_completion)
+    return (rl_insert (ignore, invoking_key));
+  else if (rl_last_func == rl_complete && !completion_changed_buffer)
+    return (rl_complete_internal ('?'));
+  else if (_rl_complete_show_all)
+    return (rl_complete_internal ('!'));
+  else
+    return (rl_complete_internal (TAB));
+}
+
+/* List the possible completions.  See description of rl_complete (). */
+int
+rl_possible_completions (ignore, invoking_key)
+     int ignore, invoking_key;
+{
+  return (rl_complete_internal ('?'));
+}
+
+int
+rl_insert_completions (ignore, invoking_key)
+     int ignore, invoking_key;
+{
+  return (rl_complete_internal ('*'));
+}
+
+/************************************/
+/*				    */
+/*    Completion utility functions  */
+/*				    */
+/************************************/
+
+/* Find the first occurrence in STRING1 of any character from STRING2.
+   Return a pointer to the character in STRING1. */
+static char *
+rl_strpbrk (string1, string2)
+     char *string1, *string2;
+{
+  register char *scan;
+
+  for (; *string1; string1++)
+    {
+      for (scan = string2; *scan; scan++)
+	{
+	  if (*string1 == *scan)
+	    {
+	      return (string1);
+	    }
+	}
+    }
+  return ((char *)NULL);
+}
+
+/* The user must press "y" or "n". Non-zero return means "y" pressed. */
+static int
+get_y_or_n ()
+{
+  int c;
+
+  for (;;)
+    {
+      c = rl_read_key ();
+      if (c == 'y' || c == 'Y' || c == ' ')
+	return (1);
+      if (c == 'n' || c == 'N' || c == RUBOUT)
+	return (0);
+      if (c == ABORT_CHAR)
+	_rl_abort_internal ();
+      ding ();
+    }
+}
+
+#if defined (VISIBLE_STATS)
+/* Return the character which best describes FILENAME.
+     `@' for symbolic links
+     `/' for directories
+     `*' for executables
+     `=' for sockets
+     `|' for FIFOs
+     `%' for character special devices
+     `#' for block special devices */
+static int
+stat_char (filename)
+     char *filename;
+{
+  struct stat finfo;
+  int character, r;
+
+#if defined (HAVE_LSTAT) && defined (S_ISLNK)
+  r = lstat (filename, &finfo);
+#else
+  r = stat (filename, &finfo);
+#endif
+
+  if (r == -1)
+    return (0);
+
+  character = 0;
+  if (S_ISDIR (finfo.st_mode))
+    character = '/';
+#if defined (S_ISCHR)
+  else if (S_ISCHR (finfo.st_mode))
+    character = '%';
+#endif /* S_ISCHR */
+#if defined (S_ISBLK)
+  else if (S_ISBLK (finfo.st_mode))
+    character = '#';
+#endif /* S_ISBLK */
+#if defined (S_ISLNK)
+  else if (S_ISLNK (finfo.st_mode))
+    character = '@';
+#endif /* S_ISLNK */
+#if defined (S_ISSOCK)
+  else if (S_ISSOCK (finfo.st_mode))
+    character = '=';
+#endif /* S_ISSOCK */
+#if defined (S_ISFIFO)
+  else if (S_ISFIFO (finfo.st_mode))
+    character = '|';
+#endif
+  else if (S_ISREG (finfo.st_mode))
+    {
+      if (access (filename, X_OK) == 0)
+	character = '*';
+    }
+  return (character);
+}
+#endif /* VISIBLE_STATS */
+
+/* Return the portion of PATHNAME that should be output when listing
+   possible completions.  If we are hacking filename completion, we
+   are only interested in the basename, the portion following the
+   final slash.  Otherwise, we return what we were passed. */
+static char *
+printable_part (pathname)
+      char *pathname;
+{
+  char *temp;
+
+  temp = rl_filename_completion_desired ? strrchr (pathname, '/') : (char *)NULL;
+  return (temp ? ++temp : pathname);
+}
+
+/* Output TO_PRINT to rl_outstream.  If VISIBLE_STATS is defined and we
+   are using it, check for and output a single character for `special'
+   filenames.  Return the number of characters we output. */
+
+#define PUTX(c) \
+    do { \
+      if (CTRL_CHAR (c)) \
+        { \
+          putc ('^', rl_outstream); \
+          putc (UNCTRL (c), rl_outstream); \
+          printed_len += 2; \
+        } \
+      else if (c == RUBOUT) \
+	{ \
+	  putc ('^', rl_outstream); \
+	  putc ('?', rl_outstream); \
+	  printed_len += 2; \
+	} \
+      else \
+	{ \
+	  putc (c, rl_outstream); \
+	  printed_len++; \
+	} \
+    } while (0)
+
+static int
+print_filename (to_print, full_pathname)
+     char *to_print, *full_pathname;
+{
+  int printed_len = 0;
+#if !defined (VISIBLE_STATS)
+  char *s;
+
+  for (s = to_print; *s; s++)
+    {
+      PUTX (*s);
+    }
+#else  
+  char *s, c, *new_full_pathname;
+  int extension_char, slen, tlen;
+
+  for (s = to_print; *s; s++)
+    {
+      PUTX (*s);
+    }
+
+ if (rl_filename_completion_desired && rl_visible_stats)
+    {
+      /* If to_print != full_pathname, to_print is the basename of the
+	 path passed.  In this case, we try to expand the directory
+	 name before checking for the stat character. */
+      if (to_print != full_pathname)
+	{
+	  /* Terminate the directory name. */
+	  c = to_print[-1];
+	  to_print[-1] = '\0';
+
+	  s = tilde_expand (full_pathname);
+	  if (rl_directory_completion_hook)
+	    (*rl_directory_completion_hook) (&s);
+
+	  slen = strlen (s);
+	  tlen = strlen (to_print);
+	  new_full_pathname = xmalloc (slen + tlen + 2);
+	  strcpy (new_full_pathname, s);
+	  new_full_pathname[slen] = '/';
+	  strcpy (new_full_pathname + slen + 1, to_print);
+
+	  extension_char = stat_char (new_full_pathname);
+
+	  free (new_full_pathname);
+	  to_print[-1] = c;
+	}
+      else
+	{
+	  s = tilde_expand (full_pathname);
+	  extension_char = stat_char (s);
+	}
+
+      free (s);
+      if (extension_char)
+	{
+	  putc (extension_char, rl_outstream);
+	  printed_len++;
+	}
+    }
+#endif /* VISIBLE_STATS */
+  return printed_len;
+}
+
+static char *
+rl_quote_filename (s, rtype, qcp)
+     char *s;
+     int rtype;
+     char *qcp;
+{
+  char *r;
+
+  r = xmalloc (strlen (s) + 2);
+  *r = *rl_completer_quote_characters;
+  strcpy (r + 1, s);
+  if (qcp)
+    *qcp = *rl_completer_quote_characters;
+  return r;
+}
+
+/* Find the bounds of the current word for completion purposes, and leave
+   rl_point set to the end of the word.  This function skips quoted
+   substrings (characters between matched pairs of characters in
+   rl_completer_quote_characters.  First we try to find an unclosed
+   quoted substring on which to do matching.  If one is not found, we use
+   the word break characters to find the boundaries of the current word.
+   We call an application-specific function to decide whether or not a
+   particular word break character is quoted; if that function returns a
+   non-zero result, the character does not break a word.  This function
+   returns the opening quote character if we found an unclosed quoted
+   substring, '\0' otherwise.  FP, if non-null, is set to a value saying
+   which (shell-like) quote characters we found (single quote, double
+   quote, or backslash) anywhere in the string.  DP, if non-null, is set to
+   the value of the delimiter character that caused a word break. */
+
+static char
+find_completion_word (fp, dp)
+     int *fp, *dp;
+{
+  int scan, end, found_quote, delimiter, pass_next, isbrk;
+  char quote_char;
+
+  end = rl_point;
+  found_quote = delimiter = 0;
+  quote_char = '\0';
+
+  if (rl_completer_quote_characters)
+    {
+      /* We have a list of characters which can be used in pairs to
+	 quote substrings for the completer.  Try to find the start
+	 of an unclosed quoted substring. */
+      /* FOUND_QUOTE is set so we know what kind of quotes we found. */
+      for (scan = pass_next = 0; scan < end; scan++)
+	{
+	  if (pass_next)
+	    {
+	      pass_next = 0;
+	      continue;
+	    }
+
+	  if (rl_line_buffer[scan] == '\\')
+	    {
+	      pass_next = 1;
+	      found_quote |= RL_QF_BACKSLASH;
+	      continue;
+	    }
+
+	  if (quote_char != '\0')
+	    {
+	      /* Ignore everything until the matching close quote char. */
+	      if (rl_line_buffer[scan] == quote_char)
+		{
+		  /* Found matching close.  Abandon this substring. */
+		  quote_char = '\0';
+		  rl_point = end;
+		}
+	    }
+	  else if (strchr (rl_completer_quote_characters, rl_line_buffer[scan]))
+	    {
+	      /* Found start of a quoted substring. */
+	      quote_char = rl_line_buffer[scan];
+	      rl_point = scan + 1;
+	      /* Shell-like quoting conventions. */
+	      if (quote_char == '\'')
+		found_quote |= RL_QF_SINGLE_QUOTE;
+	      else if (quote_char == '"')
+		found_quote |= RL_QF_DOUBLE_QUOTE;
+	    }
+	}
+    }
+
+  if (rl_point == end && quote_char == '\0')
+    {
+      /* We didn't find an unclosed quoted substring upon which to do
+         completion, so use the word break characters to find the
+         substring on which to complete. */
+      while (--rl_point)
+	{
+	  scan = rl_line_buffer[rl_point];
+
+	  if (strchr (rl_completer_word_break_characters, scan) == 0)
+	    continue;
+
+	  /* Call the application-specific function to tell us whether
+	     this word break character is quoted and should be skipped. */
+	  if (rl_char_is_quoted_p && found_quote &&
+	      (*rl_char_is_quoted_p) (rl_line_buffer, rl_point))
+	    continue;
+
+	  /* Convoluted code, but it avoids an n^2 algorithm with calls
+	     to char_is_quoted. */
+	  break;
+	}
+    }
+
+  /* If we are at an unquoted word break, then advance past it. */
+  scan = rl_line_buffer[rl_point];
+
+  /* If there is an application-specific function to say whether or not
+     a character is quoted and we found a quote character, let that
+     function decide whether or not a character is a word break, even
+     if it is found in rl_completer_word_break_characters. */
+  if (rl_char_is_quoted_p)
+    isbrk = (found_quote == 0 ||
+ 		(*rl_char_is_quoted_p) (rl_line_buffer, rl_point) == 0) &&
+	      strchr (rl_completer_word_break_characters, scan) != 0;
+  else
+    isbrk = strchr (rl_completer_word_break_characters, scan) != 0;
+
+  if (isbrk)
+    {
+      /* If the character that caused the word break was a quoting
+	 character, then remember it as the delimiter. */
+      if (rl_basic_quote_characters && strchr (rl_basic_quote_characters, scan) && (end - rl_point) > 1)
+	delimiter = scan;
+
+      /* If the character isn't needed to determine something special
+	 about what kind of completion to perform, then advance past it. */
+      if (rl_special_prefixes == 0 || strchr (rl_special_prefixes, scan) == 0)
+	rl_point++;
+    }
+
+  if (fp)
+    *fp = found_quote;
+  if (dp)
+    *dp = delimiter;
+
+  return (quote_char);
+}
+
+static char **
+gen_completion_matches (text, start, end, our_func, found_quote, quote_char)
+     char *text;
+     int start, end;
+     Function *our_func;
+     int found_quote, quote_char;
+{
+  char **matches, *temp;
+
+  /* If the user wants to TRY to complete, but then wants to give
+     up and use the default completion function, they set the
+     variable rl_attempted_completion_function. */
+  if (rl_attempted_completion_function)
+    {
+      matches = (*rl_attempted_completion_function) (text, start, end);
+
+      if (matches || rl_attempted_completion_over)
+	{
+	  rl_attempted_completion_over = 0;
+	  return (matches);
+	}
+    }
+
+  /* Beware -- we're stripping the quotes here.  Do this only if we know
+     we are doing filename completion and the application has defined a
+     filename dequoting function. */
+  temp = (char *)NULL;
+  if (found_quote && our_func == (Function *)filename_completion_function &&
+      rl_filename_dequoting_function)
+    {
+      /* delete single and double quotes */
+      temp = (*rl_filename_dequoting_function) (text, quote_char);
+      text = temp;	/* not freeing text is not a memory leak */
+    }
+
+  matches = completion_matches (text, our_func);
+  FREE (temp);
+  return matches;  
+}
+
+/* Filter out duplicates in MATCHES.  This frees up the strings in
+   MATCHES. */
+static char **
+remove_duplicate_matches (matches)
+     char **matches;
+{
+  char *lowest_common;
+  int i, j, newlen;
+  char dead_slot;
+  char **temp_array;
+
+  /* Sort the items. */
+  for (i = 0; matches[i]; i++)
+    ;
+
+  /* Sort the array without matches[0], since we need it to
+     stay in place no matter what. */
+  if (i)
+    qsort (matches+1, i-1, sizeof (char *), _rl_qsort_string_compare);
+
+  /* Remember the lowest common denominator for it may be unique. */
+  lowest_common = savestring (matches[0]);
+
+  for (i = newlen = 0; matches[i + 1]; i++)
+    {
+      if (strcmp (matches[i], matches[i + 1]) == 0)
+	{
+	  free (matches[i]);
+	  matches[i] = (char *)&dead_slot;
+	}
+      else
+	newlen++;
+    }
+
+  /* We have marked all the dead slots with (char *)&dead_slot.
+     Copy all the non-dead entries into a new array. */
+  temp_array = (char **)xmalloc ((3 + newlen) * sizeof (char *));
+  for (i = j = 1; matches[i]; i++)
+    {
+      if (matches[i] != (char *)&dead_slot)
+	temp_array[j++] = matches[i];
+    }
+  temp_array[j] = (char *)NULL;
+
+  if (matches[0] != (char *)&dead_slot)
+    free (matches[0]);
+
+  /* Place the lowest common denominator back in [0]. */
+  temp_array[0] = lowest_common;
+
+  /* If there is one string left, and it is identical to the
+     lowest common denominator, then the LCD is the string to
+     insert. */
+  if (j == 2 && strcmp (temp_array[0], temp_array[1]) == 0)
+    {
+      free (temp_array[1]);
+      temp_array[1] = (char *)NULL;
+    }
+  return (temp_array);
+}
+
+/* Find the common prefix of the list of matches, and put it into
+   matches[0]. */
+static int
+compute_lcd_of_matches (match_list, matches, text)
+     char **match_list;
+     int matches;
+     char *text;
+{
+  register int i, c1, c2, si;
+  int low;		/* Count of max-matched characters. */
+
+  /* If only one match, just use that.  Otherwise, compare each
+     member of the list with the next, finding out where they
+     stop matching. */
+  if (matches == 1)
+    {
+      match_list[0] = match_list[1];
+      match_list[1] = (char *)NULL;
+      return 1;
+    }
+
+  for (i = 1, low = 100000; i < matches; i++)
+    {
+      if (_rl_completion_case_fold)
+	{
+	  for (si = 0;
+	       (c1 = _rl_to_lower(match_list[i][si])) &&
+	       (c2 = _rl_to_lower(match_list[i + 1][si]));
+	       si++)
+	    if (c1 != c2)
+	      break;
+	}
+      else
+	{
+	  for (si = 0;
+	       (c1 = match_list[i][si]) &&
+	       (c2 = match_list[i + 1][si]);
+	       si++)
+	    if (c1 != c2)
+	      break;
+	}
+
+      if (low > si)
+	low = si;
+    }
+
+  /* If there were multiple matches, but none matched up to even the
+     first character, and the user typed something, use that as the
+     value of matches[0]. */
+  if (low == 0 && text && *text)
+    {
+      match_list[0] = xmalloc (strlen (text) + 1);
+      strcpy (match_list[0], text);
+    }
+  else
+    {
+      match_list[0] = xmalloc (low + 1);
+      strncpy (match_list[0], match_list[1], low);
+      match_list[0][low] = '\0';
+    }
+
+  return matches;
+}
+
+static int
+postprocess_matches (text, matchesp, matching_filenames)
+     char *text;
+     char ***matchesp;
+     int matching_filenames;
+{
+  char *t, **matches, **temp_matches;
+  int nmatch, i;
+
+  matches = *matchesp;
+
+  /* It seems to me that in all the cases we handle we would like
+     to ignore duplicate possiblilities.  Scan for the text to
+     insert being identical to the other completions. */
+  if (rl_ignore_completion_duplicates)
+    {
+      temp_matches = remove_duplicate_matches (matches);
+      free (matches);
+      matches = temp_matches;
+    }
+
+  /* If we are matching filenames, then here is our chance to
+     do clever processing by re-examining the list.  Call the
+     ignore function with the array as a parameter.  It can
+     munge the array, deleting matches as it desires. */
+  if (rl_ignore_some_completions_function && matching_filenames)
+    {
+      for (nmatch = 1; matches[nmatch]; nmatch++)
+	;
+      (void)(*rl_ignore_some_completions_function) (matches);
+      if (matches == 0 || matches[0] == 0)
+	{
+	  FREE (matches);
+	  ding ();
+	  *matchesp = (char **)0;
+	  return 0;
+        }
+      else
+	{
+	  /* If we removed some matches, recompute the common prefix. */
+	  for (i = 1; matches[i]; i++)
+	    ;
+	  if (i > 1 && i < nmatch)
+	    {
+	      t = matches[0];
+	      compute_lcd_of_matches (matches, i - 1, text);
+	      FREE (t);
+	    }
+	}
+    }
+
+  *matchesp = matches;
+  return (1);
+}
+
+static void
+display_matches (matches)
+     char **matches;
+{
+  int len, count, limit, max, printed_len;
+  int i, j, k, l;
+  char *temp;
+
+  /* Move to the last visible line of a possibly-multiple-line command. */
+  _rl_move_vert (_rl_vis_botlin);
+
+  /* Handle simple case first.  What if there is only one answer? */
+  if (matches[1] == 0)
+    {
+      temp = printable_part (matches[0]);
+      crlf ();
+      print_filename (temp, matches[0]);
+      crlf ();
+#if 0
+      rl_on_new_line ();
+#else
+      rl_forced_update_display ();
+      rl_display_fixed = 1;
+#endif
+      return;
+    }
+
+  /* There is more than one answer.  Find out how many there are,
+     and find the maximum printed length of a single entry. */
+  for (max = 0, i = 1; matches[i]; i++)
+    {
+      temp = printable_part (matches[i]);
+      len = strlen (temp);
+
+      if (len > max)
+	max = len;
+    }
+
+  len = i - 1;
+
+  /* If there are many items, then ask the user if she really wants to
+     see them all. */
+  if (len >= rl_completion_query_items)
+    {
+      crlf ();
+      fprintf (rl_outstream, "Display all %d possibilities? (y or n)", len);
+      fflush (rl_outstream);
+      if (get_y_or_n () == 0)
+	{
+	  crlf ();
+#if 0
+	  rl_on_new_line ();
+#else
+	  rl_forced_update_display ();
+	  rl_display_fixed = 1;
+#endif
+	  return;
+	}
+    }
+
+  /* How many items of MAX length can we fit in the screen window? */
+  max += 2;
+  limit = screenwidth / max;
+  if (limit != 1 && (limit * max == screenwidth))
+    limit--;
+
+  /* Avoid a possible floating exception.  If max > screenwidth,
+     limit will be 0 and a divide-by-zero fault will result. */
+  if (limit == 0)
+    limit = 1;
+
+  /* How many iterations of the printing loop? */
+  count = (len + (limit - 1)) / limit;
+
+  /* Watch out for special case.  If LEN is less than LIMIT, then
+     just do the inner printing loop.
+	   0 < len <= limit  implies  count = 1. */
+
+  /* Sort the items if they are not already sorted. */
+  if (rl_ignore_completion_duplicates == 0)
+    qsort (matches + 1, len, sizeof (char *), _rl_qsort_string_compare);
+
+  crlf ();
+
+  if (_rl_print_completions_horizontally == 0)
+    {
+      /* Print the sorted items, up-and-down alphabetically, like ls. */
+      for (i = 1; i <= count; i++)
+	{
+	  for (j = 0, l = i; j < limit; j++)
+	    {
+	      if (l > len || matches[l] == 0)
+		break;
+	      else
+		{
+		  temp = printable_part (matches[l]);
+		  printed_len = print_filename (temp, matches[l]);
+
+		  if (j + 1 < limit)
+		    for (k = 0; k < max - printed_len; k++)
+		      putc (' ', rl_outstream);
+		}
+	      l += count;
+	    }
+	  crlf ();
+	}
+    }
+  else
+    {
+      /* Print the sorted items, across alphabetically, like ls -x. */
+      for (i = 1; matches[i]; i++)
+	{
+	  temp = printable_part (matches[i]);
+	  printed_len = print_filename (temp, matches[i]);
+	  /* Have we reached the end of this line? */
+	  if (matches[i+1])
+	    {
+	      if (i && (limit > 1) && (i % limit) == 0)
+		crlf ();
+	      else
+		for (k = 0; k < max - printed_len; k++)
+		  putc (' ', rl_outstream);
+	    }
+	}
+      crlf ();
+    }
+
+#if 0
+  rl_on_new_line ();
+#else
+  rl_forced_update_display ();
+  rl_display_fixed = 1;
+#endif
+}
+
+static char *
+make_quoted_replacement (match, mtype, qc)
+     char *match;
+     int mtype;
+     char *qc;	/* Pointer to quoting character, if any */
+{
+  int should_quote, do_replace;
+  char *replacement;
+
+  /* If we are doing completion on quoted substrings, and any matches
+     contain any of the completer_word_break_characters, then auto-
+     matically prepend the substring with a quote character (just pick
+     the first one from the list of such) if it does not already begin
+     with a quote string.  FIXME: Need to remove any such automatically
+     inserted quote character when it no longer is necessary, such as
+     if we change the string we are completing on and the new set of
+     matches don't require a quoted substring. */
+  replacement = match;
+
+  should_quote = match && rl_completer_quote_characters &&
+			rl_filename_completion_desired &&
+			rl_filename_quoting_desired;
+
+  if (should_quote)
+#if defined (SHELL)
+    should_quote = should_quote && (!qc || !*qc || *qc == '"' || *qc == '\'');
+#else /* !SHELL */
+    should_quote = should_quote && (!qc || !*qc);
+#endif /* !SHELL */
+
+  if (should_quote)
+    {
+      /* If there is a single match, see if we need to quote it.
+         This also checks whether the common prefix of several
+	 matches needs to be quoted. */
+      should_quote = rl_filename_quote_characters
+			? (rl_strpbrk (match, rl_filename_quote_characters) != 0)
+			: 0;
+
+      do_replace = should_quote ? mtype : NO_MATCH;
+      /* Quote the replacement, since we found an embedded
+	 word break character in a potential match. */
+      if (do_replace != NO_MATCH && rl_filename_quoting_function)
+	replacement = (*rl_filename_quoting_function) (match, do_replace, qc);
+    }
+  return (replacement);
+}
+
+static void
+insert_match (match, start, mtype, qc)
+     char *match;
+     int start, mtype;
+     char *qc;
+{
+  char *replacement;
+  char oqc;
+
+  oqc = qc ? *qc : '\0';
+  replacement = make_quoted_replacement (match, mtype, qc);
+
+  /* Now insert the match. */
+  if (replacement)
+    {
+      /* Don't double an opening quote character. */
+      if (qc && *qc && start && rl_line_buffer[start - 1] == *qc &&
+	    replacement[0] == *qc)
+	start--;
+      /* If make_quoted_replacement changed the quoting character, remove
+	 the opening quote and insert the (fully-quoted) replacement. */
+      else if (qc && (*qc != oqc) && start && rl_line_buffer[start - 1] == oqc &&
+	    replacement[0] != oqc)
+	start--;
+      _rl_replace_text (replacement, start, rl_point - 1);
+      if (replacement != match)
+        free (replacement);
+    }
+}
+
+/* Append any necessary closing quote and a separator character to the
+   just-inserted match.  If the user has specified that directories
+   should be marked by a trailing `/', append one of those instead.  The
+   default trailing character is a space.  Returns the number of characters
+   appended. */
+static int
+append_to_match (text, delimiter, quote_char)
+     char *text;
+     int delimiter, quote_char;
+{
+  char temp_string[4], *filename;
+  int temp_string_index;
+  struct stat finfo;
+
+  temp_string_index = 0;
+  if (quote_char && rl_point && rl_line_buffer[rl_point - 1] != quote_char)
+    temp_string[temp_string_index++] = quote_char;
+
+  if (delimiter)
+    temp_string[temp_string_index++] = delimiter;
+  else if (rl_completion_append_character)
+    temp_string[temp_string_index++] = rl_completion_append_character;
+
+  temp_string[temp_string_index++] = '\0';
+
+  if (rl_filename_completion_desired)
+    {
+      filename = tilde_expand (text);
+      if (stat (filename, &finfo) == 0 && S_ISDIR (finfo.st_mode))
+	{
+	  if (_rl_complete_mark_directories && rl_line_buffer[rl_point] != '/')
+	    rl_insert_text ("/");
+	}
+      else
+	{
+	  if (rl_point == rl_end)
+	    rl_insert_text (temp_string);
+	}
+      free (filename);
+    }
+  else
+    {
+      if (rl_point == rl_end)
+	rl_insert_text (temp_string);
+    }
+
+  return (temp_string_index);
+}
+
+static void
+insert_all_matches (matches, point, qc)
+     char **matches;
+     int point;
+     char *qc;
+{
+  int i;
+  char *rp;
+
+  rl_begin_undo_group ();
+  /* remove any opening quote character; make_quoted_replacement will add
+     it back. */
+  if (qc && *qc && point && rl_line_buffer[point - 1] == *qc)
+    point--;
+  rl_delete_text (point, rl_point);
+  rl_point = point;
+
+  if (matches[1])
+    {
+      for (i = 1; matches[i]; i++)
+	{
+	  rp = make_quoted_replacement (matches[i], SINGLE_MATCH, qc);
+	  rl_insert_text (rp);
+	  rl_insert_text (" ");
+	  if (rp != matches[i])
+	    free (rp);
+	}
+    }
+  else
+    {
+      rp = make_quoted_replacement (matches[0], SINGLE_MATCH, qc);
+      rl_insert_text (rp);
+      rl_insert_text (" ");
+      if (rp != matches[0])
+	free (rp);
+    }
+  rl_end_undo_group ();
+}
+
+/* Complete the word at or before point.
+   WHAT_TO_DO says what to do with the completion.
+   `?' means list the possible completions.
+   TAB means do standard completion.
+   `*' means insert all of the possible completions.
+   `!' means to do standard completion, and list all possible completions if
+   there is more than one. */
+int
+rl_complete_internal (what_to_do)
+     int what_to_do;
+{
+  char **matches;
+  Function *our_func;
+  int start, end, delimiter, found_quote, i;
+  char *text, *saved_line_buffer;
+  char quote_char;
+
+  /* Only the completion entry function can change these. */
+  rl_filename_completion_desired = 0;
+  rl_filename_quoting_desired = 1;
+  rl_completion_type = what_to_do;
+
+  saved_line_buffer = rl_line_buffer ? savestring (rl_line_buffer) : (char *)NULL;
+  our_func = rl_completion_entry_function
+		? rl_completion_entry_function
+		: (Function *)filename_completion_function;
+
+  /* We now look backwards for the start of a filename/variable word. */
+  end = rl_point;
+  found_quote = delimiter = 0;
+  quote_char = '\0';
+
+  if (rl_point)
+    /* This (possibly) changes rl_point.  If it returns a non-zero char,
+       we know we have an open quote. */
+    quote_char = find_completion_word (&found_quote, &delimiter);
+
+  start = rl_point;
+  rl_point = end;
+
+  text = rl_copy_text (start, end);
+  matches = gen_completion_matches (text, start, end, our_func, found_quote, quote_char);
+
+  if (matches == 0)
+    {
+      ding ();
+      FREE (saved_line_buffer);
+      free (text);
+      return (0);
+    }
+
+  /* If we are matching filenames, our_func will have been set to
+     filename_completion_function */
+  i = our_func == (Function *)filename_completion_function;
+  if (postprocess_matches (text, &matches, i) == 0)
+    {
+      FREE (saved_line_buffer);
+      free (text);
+      return (0);
+    }
+
+  free (text);
+
+  switch (what_to_do)
+    {
+    case TAB:
+    case '!':
+      /* Insert the first match with proper quoting. */
+      if (*matches[0])
+	insert_match (matches[0], start, matches[1] ? MULT_MATCH : SINGLE_MATCH, &quote_char);
+
+      /* If there are more matches, ring the bell to indicate.
+	 If we are in vi mode, Posix.2 says to not ring the bell.
+	 If the `show-all-if-ambiguous' variable is set, display
+	 all the matches immediately.  Otherwise, if this was the
+	 only match, and we are hacking files, check the file to
+	 see if it was a directory.  If so, and the `mark-directories'
+	 variable is set, add a '/' to the name.  If not, and we
+	 are at the end of the line, then add a space.  */
+      if (matches[1])
+	{
+	  if (what_to_do == '!')
+	    {
+	      display_matches (matches);
+	      break;
+	    }
+	  else if (rl_editing_mode != vi_mode)
+	    ding ();	/* There are other matches remaining. */
+	}
+      else
+	append_to_match (matches[0], delimiter, quote_char);
+
+      break;
+
+    case '*':
+      insert_all_matches (matches, start, &quote_char);
+      break;
+
+    case '?':
+      display_matches (matches);
+      break;
+
+    default:
+      fprintf (stderr, "\r\nreadline: bad value %d for what_to_do in rl_complete\n", what_to_do);
+      ding ();
+      FREE (saved_line_buffer);
+      return 1;
+    }
+
+  for (i = 0; matches[i]; i++)
+    free (matches[i]);
+  free (matches);
+
+  /* Check to see if the line has changed through all of this manipulation. */
+  if (saved_line_buffer)
+    {
+      completion_changed_buffer = strcmp (rl_line_buffer, saved_line_buffer) != 0;
+      free (saved_line_buffer);
+    }
+
+  return 0;
+}
+
+/***************************************************************/
+/*							       */
+/*  Application-callable completion match generator functions  */
+/*							       */
+/***************************************************************/
+
+/* Return an array of (char *) which is a list of completions for TEXT.
+   If there are no completions, return a NULL pointer.
+   The first entry in the returned array is the substitution for TEXT.
+   The remaining entries are the possible completions.
+   The array is terminated with a NULL pointer.
+
+   ENTRY_FUNCTION is a function of two args, and returns a (char *).
+     The first argument is TEXT.
+     The second is a state argument; it should be zero on the first call, and
+     non-zero on subsequent calls.  It returns a NULL pointer to the caller
+     when there are no more matches.
+ */
+char **
+completion_matches (text, entry_function)
+     char *text;
+     CPFunction *entry_function;
+{
+  /* Number of slots in match_list. */
+  int match_list_size;
+
+  /* The list of matches. */
+  char **match_list;
+
+  /* Number of matches actually found. */
+  int matches;
+
+  /* Temporary string binder. */
+  char *string;
+
+  matches = 0;
+  match_list_size = 10;
+  match_list = (char **)xmalloc ((match_list_size + 1) * sizeof (char *));
+  match_list[1] = (char *)NULL;
+
+  while (string = (*entry_function) (text, matches))
+    {
+      if (matches + 1 == match_list_size)
+	match_list = (char **)xrealloc
+	  (match_list, ((match_list_size += 10) + 1) * sizeof (char *));
+
+      match_list[++matches] = string;
+      match_list[matches + 1] = (char *)NULL;
+    }
+
+  /* If there were any matches, then look through them finding out the
+     lowest common denominator.  That then becomes match_list[0]. */
+  if (matches)
+    compute_lcd_of_matches (match_list, matches, text);
+  else				/* There were no matches. */
+    {
+      free (match_list);
+      match_list = (char **)NULL;
+    }
+  return (match_list);
+}
+
+/* A completion function for usernames.
+   TEXT contains a partial username preceded by a random
+   character (usually `~').  */
+char *
+username_completion_function (text, state)
+     int state;
+     char *text;
+{
+#if defined (__GO32__) || defined (__WIN32__)
+  return (char *)NULL;
+#else /* !__GO32__ */
+  static char *username = (char *)NULL;
+  static struct passwd *entry;
+  static int namelen, first_char, first_char_loc;
+  char *value;
+
+  if (state == 0)
+    {
+      FREE (username);
+
+      first_char = *text;
+      first_char_loc = first_char == '~';
+
+      username = savestring (&text[first_char_loc]);
+      namelen = strlen (username);
+      setpwent ();
+    }
+
+  while (entry = getpwent ())
+    {
+      /* Null usernames should result in all users as possible completions. */
+      if (namelen == 0 || (STREQN (username, entry->pw_name, namelen)))
+	break;
+    }
+
+  if (entry == 0)
+    {
+      endpwent ();
+      return ((char *)NULL);
+    }
+  else
+    {
+      value = xmalloc (2 + strlen (entry->pw_name));
+
+      *value = *text;
+
+      strcpy (value + first_char_loc, entry->pw_name);
+
+      if (first_char == '~')
+	rl_filename_completion_desired = 1;
+
+      return (value);
+    }
+#endif /* !__GO32__ */
+}
+
+/* Okay, now we write the entry_function for filename completion.  In the
+   general case.  Note that completion in the shell is a little different
+   because of all the pathnames that must be followed when looking up the
+   completion for a command. */
+char *
+filename_completion_function (text, state)
+     int state;
+     char *text;
+{
+  static DIR *directory = (DIR *)NULL;
+  static char *filename = (char *)NULL;
+  static char *dirname = (char *)NULL;
+  static char *users_dirname = (char *)NULL;
+  static int filename_len;
+  char *temp;
+  int dirlen;
+  struct dirent *entry;
+
+  /* If we don't have any state, then do some initialization. */
+  if (state == 0)
+    {
+      /* If we were interrupted before closing the directory or reading
+	 all of its contents, close it. */
+      if (directory)
+	{
+	  closedir (directory);
+	  directory = (DIR *)NULL;
+	}
+      FREE (dirname);
+      FREE (filename);
+      FREE (users_dirname);
+
+      filename = savestring (text);
+      if (*text == 0)
+	text = ".";
+      dirname = savestring (text);
+
+      temp = strrchr (dirname, '/');
+
+      if (temp)
+	{
+	  strcpy (filename, ++temp);
+	  *temp = '\0';
+	}
+      else
+	{
+	  dirname[0] = '.';
+	  dirname[1] = '\0';
+	}
+
+      /* We aren't done yet.  We also support the "~user" syntax. */
+
+      /* Save the version of the directory that the user typed. */
+      users_dirname = savestring (dirname);
+
+      if (*dirname == '~')
+	{
+	  temp = tilde_expand (dirname);
+	  free (dirname);
+	  dirname = temp;
+	}
+
+      if (rl_directory_completion_hook && (*rl_directory_completion_hook) (&dirname))
+	{
+	  free (users_dirname);
+	  users_dirname = savestring (dirname);
+	}
+
+      directory = opendir (dirname);
+      filename_len = strlen (filename);
+
+      rl_filename_completion_desired = 1;
+    }
+
+  /* At this point we should entertain the possibility of hacking wildcarded
+     filenames, like /usr/man/man<WILD>/te<TAB>.  If the directory name
+     contains globbing characters, then build an array of directories, and
+     then map over that list while completing. */
+  /* *** UNIMPLEMENTED *** */
+
+  /* Now that we have some state, we can read the directory. */
+
+  entry = (struct dirent *)NULL;
+  while (directory && (entry = readdir (directory)))
+    {
+      /* Special case for no filename.
+	 All entries except "." and ".." match. */
+      if (filename_len == 0)
+	{
+	  if (entry->d_name[0] != '.' ||
+	       (entry->d_name[1] &&
+		 (entry->d_name[1] != '.' || entry->d_name[2])))
+	    break;
+	}
+      else
+	{
+	  /* Otherwise, if these match up to the length of filename, then
+	     it is a match. */
+	  if (_rl_completion_case_fold)
+	    {
+	      if ((_rl_to_lower (entry->d_name[0]) == _rl_to_lower (filename[0])) &&
+		  (((int)D_NAMLEN (entry)) >= filename_len) &&
+		  (_rl_strnicmp (filename, entry->d_name, filename_len) == 0))
+		break;
+	    }
+	  else
+	    {
+	      if ((entry->d_name[0] == filename[0]) &&
+		  (((int)D_NAMLEN (entry)) >= filename_len) &&
+		  (strncmp (filename, entry->d_name, filename_len) == 0))
+		break;
+	    }
+	}
+    }
+
+  if (entry == 0)
+    {
+      if (directory)
+	{
+	  closedir (directory);
+	  directory = (DIR *)NULL;
+	}
+      if (dirname)
+	{
+	  free (dirname);
+	  dirname = (char *)NULL;
+	}
+      if (filename)
+	{
+	  free (filename);
+	  filename = (char *)NULL;
+	}
+      if (users_dirname)
+	{
+	  free (users_dirname);
+	  users_dirname = (char *)NULL;
+	}
+
+      return (char *)NULL;
+    }
+  else
+    {
+      /* dirname && (strcmp (dirname, ".") != 0) */
+      if (dirname && (dirname[0] != '.' || dirname[1]))
+	{
+	  if (rl_complete_with_tilde_expansion && *users_dirname == '~')
+	    {
+	      dirlen = strlen (dirname);
+	      temp = xmalloc (2 + dirlen + D_NAMLEN (entry));
+	      strcpy (temp, dirname);
+	      /* Canonicalization cuts off any final slash present.  We
+		 may need to add it back. */
+	      if (dirname[dirlen - 1] != '/')
+	        {
+	          temp[dirlen++] = '/';
+	          temp[dirlen] = '\0';
+	        }
+	    }
+	  else
+	    {
+	      dirlen = strlen (users_dirname);
+	      temp = xmalloc (1 + dirlen + D_NAMLEN (entry));
+	      strcpy (temp, users_dirname);
+	    }
+
+	  strcpy (temp + dirlen, entry->d_name); /* strcat (temp, entry->d_name); */
+	}
+      else
+	temp = savestring (entry->d_name);
+
+      return (temp);
+    }
+}
+
+/* An initial implementation of a menu completion function a la tcsh.  The
+   first time (if the last readline command was not rl_menu_complete), we
+   generate the list of matches.  This code is very similar to the code in
+   rl_complete_internal -- there should be a way to combine the two.  Then,
+   for each item in the list of matches, we insert the match in an undoable
+   fashion, with the appropriate character appended (this happens on the
+   second and subsequent consecutive calls to rl_menu_complete).  When we
+   hit the end of the match list, we restore the original unmatched text,
+   ring the bell, and reset the counter to zero. */
+int
+rl_menu_complete (count, ignore)
+     int count, ignore;
+{
+  Function *our_func;
+  int matching_filenames, found_quote;
+
+  static char *orig_text;
+  static char **matches = (char **)0;
+  static int match_list_index = 0;
+  static int match_list_size = 0;
+  static int orig_start, orig_end;
+  static char quote_char;
+  static int delimiter;
+
+  /* The first time through, we generate the list of matches and set things
+     up to insert them. */
+  if (rl_last_func != rl_menu_complete)
+    {
+      /* Clean up from previous call, if any. */
+      FREE (orig_text);
+      if (matches)
+	{
+	  for (match_list_index = 0; matches[match_list_index]; match_list_index++)
+	    free (matches[match_list_index]);
+	  free (matches);
+	}
+
+      match_list_index = match_list_size = 0;
+      matches = (char **)NULL;
+
+      /* Only the completion entry function can change these. */
+      rl_filename_completion_desired = 0;
+      rl_filename_quoting_desired = 1;
+      rl_completion_type = '%';
+
+      our_func = rl_completion_entry_function
+			? rl_completion_entry_function
+			: (Function *)filename_completion_function;
+
+      /* We now look backwards for the start of a filename/variable word. */
+      orig_end = rl_point;
+      found_quote = delimiter = 0;
+      quote_char = '\0';
+
+      if (rl_point)
+	/* This (possibly) changes rl_point.  If it returns a non-zero char,
+	   we know we have an open quote. */
+	quote_char = find_completion_word (&found_quote, &delimiter);
+
+      orig_start = rl_point;
+      rl_point = orig_end;
+
+      orig_text = rl_copy_text (orig_start, orig_end);
+      matches = gen_completion_matches (orig_text, orig_start, orig_end,
+					our_func, found_quote, quote_char);
+
+      /* If we are matching filenames, our_func will have been set to
+	 filename_completion_function */
+      matching_filenames = our_func == (Function *)filename_completion_function;
+      if (matches == 0 || postprocess_matches (orig_text, &matches, matching_filenames) == 0)
+	{
+    	  ding ();
+	  FREE (matches);
+	  matches = (char **)0;
+	  FREE (orig_text);
+	  orig_text = (char *)0;
+    	  completion_changed_buffer = 0;
+          return (0);
+	}
+
+      for (match_list_size = 0; matches[match_list_size]; match_list_size++)
+        ;
+      /* matches[0] is lcd if match_list_size > 1, but the circular buffer
+	 code below should take care of it. */
+    }
+
+  /* Now we have the list of matches.  Replace the text between
+     rl_line_buffer[orig_start] and rl_line_buffer[rl_point] with
+     matches[match_list_index], and add any necessary closing char. */
+
+  if (matches == 0 || match_list_size == 0) 
+    {
+      ding ();
+      FREE (matches);
+      matches = (char **)0;
+      completion_changed_buffer = 0;
+      return (0);
+    }
+
+  match_list_index = (match_list_index + count) % match_list_size;
+  if (match_list_index < 0)
+    match_list_index += match_list_size;
+
+  if (match_list_index == 0)
+    {
+      ding ();
+      insert_match (orig_text, orig_start, MULT_MATCH, &quote_char);
+    }
+  else
+    {
+      insert_match (matches[match_list_index], orig_start, SINGLE_MATCH, &quote_char);
+      append_to_match (matches[match_list_index], delimiter, quote_char);
+    }
+
+  completion_changed_buffer = 1;
+  return (0);
+}
diff --git a/readline/config.h.in b/readline/config.h.in
new file mode 100644
index 00000000000..d7cf6cffa0b
--- /dev/null
+++ b/readline/config.h.in
@@ -0,0 +1,150 @@
+/* config.h.in.  Generated automatically from configure.in by autoheader.  */
+
+/* Define if you have the strcoll function and it is properly defined.  */
+#undef HAVE_STRCOLL
+
+/* Define if on MINIX.  */
+#undef _MINIX
+
+/* Define if the system does not provide POSIX.1 features except
+   with this defined.  */
+#undef _POSIX_1_SOURCE
+
+/* Define if you need to in order for stat and other things to work.  */
+#undef _POSIX_SOURCE
+
+/* Define as the return type of signal handlers (int or void).  */
+#undef RETSIGTYPE
+
+/* Define if the `S_IS*' macros in <sys/stat.h> do not work properly.  */
+#undef STAT_MACROS_BROKEN
+
+/* Definitions pulled in from aclocal.m4. */
+#undef VOID_SIGHANDLER
+
+#undef TIOCSTAT_IN_SYS_IOCTL
+
+#undef HAVE_GETPW_DECLS
+
+#undef FIONREAD_IN_SYS_IOCTL
+
+#undef HAVE_BSD_SIGNALS
+
+#undef HAVE_LSTAT
+
+#undef HAVE_POSIX_SIGNALS
+
+#undef HAVE_POSIX_SIGSETJMP
+
+#undef HAVE_USG_SIGHOLD
+
+#undef MUST_REINSTALL_SIGHANDLERS
+
+#undef SPEED_T_IN_SYS_TYPES
+
+#undef STRCOLL_BROKEN
+
+#undef STRUCT_DIRENT_HAS_D_FILENO
+
+#undef STRUCT_DIRENT_HAS_D_INO
+
+#undef STRUCT_WINSIZE_IN_SYS_IOCTL
+
+#undef STRUCT_WINSIZE_IN_TERMIOS
+
+/* Define if you have the lstat function.  */
+#undef HAVE_LSTAT
+
+/* Define if you have the putenv function.  */
+#undef HAVE_PUTENV
+
+/* Define if you have the select function.  */
+#undef HAVE_SELECT
+
+/* Define if you have the setenv function.  */
+#undef HAVE_SETENV
+
+/* Define if you have the setlocale function.  */
+#undef HAVE_SETLOCALE
+
+/* Define if you have the strcasecmp function.  */
+#undef HAVE_STRCASECMP
+
+/* Define if you have the tcgetattr function.  */
+#undef HAVE_TCGETATTR
+
+/* Define if you have the <dirent.h> header file.  */
+#undef HAVE_DIRENT_H
+
+/* Define if you have the <locale.h> header file.  */
+#undef HAVE_LOCALE_H
+
+/* Define if you have the <ndir.h> header file.  */
+#undef HAVE_NDIR_H
+
+/* Define if you have the <stdarg.h> header file.  */
+#undef HAVE_STDARG_H
+
+/* Define if you have the <stdlib.h> header file.  */
+#undef HAVE_STDLIB_H
+
+/* Define if you have the <string.h> header file.  */
+#undef HAVE_STRING_H
+
+/* Define if you have the <sys/dir.h> header file.  */
+#undef HAVE_SYS_DIR_H
+
+/* Define if you have the <sys/file.h> header file.  */
+#undef HAVE_SYS_FILE_H
+
+/* Define if you have the <sys/ndir.h> header file.  */
+#undef HAVE_SYS_NDIR_H
+
+/* Define if you have the <sys/pte.h> header file.  */
+#undef HAVE_SYS_PTE_H
+
+/* Define if you have the <sys/ptem.h> header file.  */
+#undef HAVE_SYS_PTEM_H
+
+/* Define if you have the <sys/select.h> header file.  */
+#undef HAVE_SYS_SELECT_H
+
+/* Define if you have the <sys/stream.h> header file.  */
+#undef HAVE_SYS_STREAM_H
+
+/* Define if you have the <termcap.h> header file.  */
+#undef HAVE_TERMCAP_H
+
+/* Define if you have the <termio.h> header file.  */
+#undef HAVE_TERMIO_H
+
+/* Define if you have the <termios.h> header file.  */
+#undef HAVE_TERMIOS_H
+
+/* Define if you have the <unistd.h> header file.  */
+#undef HAVE_UNISTD_H
+
+/* Define if you have the <varargs.h> header file.  */
+#undef HAVE_VARARGS_H
+/* config.h.bot */
+/* modify settings or make new ones based on what autoconf tells us. */
+
+/* Ultrix botches type-ahead when switching from canonical to
+   non-canonical mode, at least through version 4.3 */
+#if !defined (HAVE_TERMIOS_H) || !defined (HAVE_TCGETATTR) || defined (ultrix)
+#  define TERMIOS_MISSING
+#endif
+
+#if defined (STRCOLL_BROKEN)
+#  undef HAVE_STRCOLL
+#endif
+
+#if defined (__STDC__) && defined (HAVE_STDARG_H)
+#  define PREFER_STDARG
+#  define USE_VARARGS
+#else
+#  if defined (HAVE_VARARGS_H)
+#    define PREFER_VARARGS
+#    define USE_VARARGS
+#  endif
+#endif
diff --git a/readline/configure b/readline/configure
new file mode 100755
index 00000000000..f22bd1134dc
--- /dev/null
+++ b/readline/configure
@@ -0,0 +1,2877 @@
+#! /bin/sh
+
+# From configure.in for Readline 2.2, version 2.07, from autoconf version 2.12.2
+LIBVERSION=2.2
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# Guess values for system-dependent variables and create Makefiles.
+# Generated automatically using autoconf version 2.12.2 
+# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+
+# Defaults:
+ac_help=
+ac_default_prefix=/usr/local
+# Any additions from configure.in:
+ac_help="$ac_help
+--with-curses               use the curses library instead of the termcap library"
+
+# Initialize some variables set by options.
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+build=NONE
+cache_file=./config.cache
+exec_prefix=NONE
+host=NONE
+no_create=
+nonopt=NONE
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+target=NONE
+verbose=
+x_includes=NONE
+x_libraries=NONE
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datadir='${prefix}/share'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+libdir='${exec_prefix}/lib'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+infodir='${prefix}/info'
+mandir='${prefix}/man'
+
+# Initialize some other variables.
+subdirs=
+MFLAGS= MAKEFLAGS=
+SHELL=${CONFIG_SHELL-/bin/sh}
+# Maximum number of lines to put in a shell here document.
+ac_max_here_lines=12
+
+ac_prev=
+for ac_option
+do
+
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval "$ac_prev=\$ac_option"
+    ac_prev=
+    continue
+  fi
+
+  case "$ac_option" in
+  -*=*) ac_optarg=`echo "$ac_option" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
+  *) ac_optarg= ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case "$ac_option" in
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir="$ac_optarg" ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build="$ac_optarg" ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file="$ac_optarg" ;;
+
+  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
+  | --da=*)
+    datadir="$ac_optarg" ;;
+
+  -disable-* | --disable-*)
+    ac_feature=`echo $ac_option|sed -e 's/-*disable-//'`
+    # Reject names that are not valid shell variable names.
+    if test -n "`echo $ac_feature| sed 's/[-a-zA-Z0-9_]//g'`"; then
+      { echo "configure: error: $ac_feature: invalid feature name" 1>&2; exit 1; }
+    fi
+    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
+    eval "enable_${ac_feature}=no" ;;
+
+  -enable-* | --enable-*)
+    ac_feature=`echo $ac_option|sed -e 's/-*enable-//' -e 's/=.*//'`
+    # Reject names that are not valid shell variable names.
+    if test -n "`echo $ac_feature| sed 's/[-_a-zA-Z0-9]//g'`"; then
+      { echo "configure: error: $ac_feature: invalid feature name" 1>&2; exit 1; }
+    fi
+    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
+    case "$ac_option" in
+      *=*) ;;
+      *) ac_optarg=yes ;;
+    esac
+    eval "enable_${ac_feature}='$ac_optarg'" ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix="$ac_optarg" ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he)
+    # Omit some internal or obsolete options to make the list less imposing.
+    # This message is too long to be a string in the A/UX 3.1 sh.
+    cat << EOF
+Usage: configure [options] [host]
+Options: [defaults in brackets after descriptions]
+Configuration:
+  --cache-file=FILE       cache test results in FILE
+  --help                  print this message
+  --no-create             do not create output files
+  --quiet, --silent       do not print \`checking...' messages
+  --version               print the version of autoconf that created configure
+Directory and file names:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [same as prefix]
+  --bindir=DIR            user executables in DIR [EPREFIX/bin]
+  --sbindir=DIR           system admin executables in DIR [EPREFIX/sbin]
+  --libexecdir=DIR        program executables in DIR [EPREFIX/libexec]
+  --datadir=DIR           read-only architecture-independent data in DIR
+                          [PREFIX/share]
+  --sysconfdir=DIR        read-only single-machine data in DIR [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data in DIR
+                          [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data in DIR [PREFIX/var]
+  --libdir=DIR            object code libraries in DIR [EPREFIX/lib]
+  --includedir=DIR        C header files in DIR [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc in DIR [/usr/include]
+  --infodir=DIR           info documentation in DIR [PREFIX/info]
+  --mandir=DIR            man documentation in DIR [PREFIX/man]
+  --srcdir=DIR            find the sources in DIR [configure dir or ..]
+  --program-prefix=PREFIX prepend PREFIX to installed program names
+  --program-suffix=SUFFIX append SUFFIX to installed program names
+  --program-transform-name=PROGRAM
+                          run sed PROGRAM on installed program names
+EOF
+    cat << EOF
+Host type:
+  --build=BUILD           configure for building on BUILD [BUILD=HOST]
+  --host=HOST             configure for HOST [guessed]
+  --target=TARGET         configure for TARGET [TARGET=HOST]
+Features and packages:
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --x-includes=DIR        X include files are in DIR
+  --x-libraries=DIR       X library files are in DIR
+EOF
+    if test -n "$ac_help"; then
+      echo "--enable and --with options recognized:$ac_help"
+    fi
+    exit 0 ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host="$ac_optarg" ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir="$ac_optarg" ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir="$ac_optarg" ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir="$ac_optarg" ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir="$ac_optarg" ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst \
+  | --locals | --local | --loca | --loc | --lo)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* \
+  | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
+    localstatedir="$ac_optarg" ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir="$ac_optarg" ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir="$ac_optarg" ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix="$ac_optarg" ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix="$ac_optarg" ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix="$ac_optarg" ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name="$ac_optarg" ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir="$ac_optarg" ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir="$ac_optarg" ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site="$ac_optarg" ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir="$ac_optarg" ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir="$ac_optarg" ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target="$ac_optarg" ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers)
+    echo "configure generated by autoconf version 2.12.2"
+    exit 0 ;;
+
+  -with-* | --with-*)
+    ac_package=`echo $ac_option|sed -e 's/-*with-//' -e 's/=.*//'`
+    # Reject names that are not valid shell variable names.
+    if test -n "`echo $ac_package| sed 's/[-_a-zA-Z0-9]//g'`"; then
+      { echo "configure: error: $ac_package: invalid package name" 1>&2; exit 1; }
+    fi
+    ac_package=`echo $ac_package| sed 's/-/_/g'`
+    case "$ac_option" in
+      *=*) ;;
+      *) ac_optarg=yes ;;
+    esac
+    eval "with_${ac_package}='$ac_optarg'" ;;
+
+  -without-* | --without-*)
+    ac_package=`echo $ac_option|sed -e 's/-*without-//'`
+    # Reject names that are not valid shell variable names.
+    if test -n "`echo $ac_package| sed 's/[-a-zA-Z0-9_]//g'`"; then
+      { echo "configure: error: $ac_package: invalid package name" 1>&2; exit 1; }
+    fi
+    ac_package=`echo $ac_package| sed 's/-/_/g'`
+    eval "with_${ac_package}=no" ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes="$ac_optarg" ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries="$ac_optarg" ;;
+
+  -*) { echo "configure: error: $ac_option: invalid option; use --help to show usage" 1>&2; exit 1; }
+    ;;
+
+  *)
+    if test -n "`echo $ac_option| sed 's/[-a-z0-9.]//g'`"; then
+      echo "configure: warning: $ac_option: invalid host type" 1>&2
+    fi
+    if test "x$nonopt" != xNONE; then
+      { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; }
+    fi
+    nonopt="$ac_option"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  { echo "configure: error: missing argument to --`echo $ac_prev | sed 's/_/-/g'`" 1>&2; exit 1; }
+fi
+
+trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
+
+# File descriptor usage:
+# 0 standard input
+# 1 file creation
+# 2 errors and warnings
+# 3 some systems may open it to /dev/tty
+# 4 used on the Kubota Titan
+# 6 checking for... messages and results
+# 5 compiler messages saved in config.log
+if test "$silent" = yes; then
+  exec 6>/dev/null
+else
+  exec 6>&1
+fi
+exec 5>./config.log
+
+echo "\
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+" 1>&5
+
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Also quote any args containing shell metacharacters.
+ac_configure_args=
+for ac_arg
+do
+  case "$ac_arg" in
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c) ;;
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
+  *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
+  ac_configure_args="$ac_configure_args '$ac_arg'" ;;
+  *) ac_configure_args="$ac_configure_args $ac_arg" ;;
+  esac
+done
+
+# NLS nuisances.
+# Only set these to C if already set.  These must not be set unconditionally
+# because not all systems understand e.g. LANG=C (notably SCO).
+# Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'!
+# Non-C LC_CTYPE values break the ctype check.
+if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
+if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
+if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi
+if test "${LC_CTYPE+set}"    = set; then LC_CTYPE=C;    export LC_CTYPE;    fi
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -rf conftest* confdefs.h
+# AIX cpp loses on an empty file, so make sure it contains at least a newline.
+echo > confdefs.h
+
+# A filename unique to this package, relative to the directory that
+# configure is in, which we can look for to find out if srcdir is correct.
+ac_unique_file=readline.h
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then its parent.
+  ac_prog=$0
+  ac_confdir=`echo $ac_prog|sed 's%/[^/][^/]*$%%'`
+  test "x$ac_confdir" = "x$ac_prog" && ac_confdir=.
+  srcdir=$ac_confdir
+  if test ! -r $srcdir/$ac_unique_file; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r $srcdir/$ac_unique_file; then
+  if test "$ac_srcdir_defaulted" = yes; then
+    { echo "configure: error: can not find sources in $ac_confdir or .." 1>&2; exit 1; }
+  else
+    { echo "configure: error: can not find sources in $srcdir" 1>&2; exit 1; }
+  fi
+fi
+srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`
+
+# Prefer explicitly selected file to automatically selected ones.
+if test -z "$CONFIG_SITE"; then
+  if test "x$prefix" != xNONE; then
+    CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
+  else
+    CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
+  fi
+fi
+for ac_site_file in $CONFIG_SITE; do
+  if test -r "$ac_site_file"; then
+    echo "loading site script $ac_site_file"
+    . "$ac_site_file"
+  fi
+done
+
+if test -r "$cache_file"; then
+  echo "loading cache $cache_file"
+  . $cache_file
+else
+  echo "creating cache $cache_file"
+  > $cache_file
+fi
+
+ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
+
+ac_exeext=
+ac_objext=o
+if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
+  # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
+  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
+    ac_n= ac_c='
+' ac_t='	'
+  else
+    ac_n=-n ac_c= ac_t=
+  fi
+else
+  ac_n= ac_c='\c' ac_t=
+fi
+
+
+
+
+
+
+
+ac_aux_dir=
+for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
+  if test -f $ac_dir/install-sh; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f $ac_dir/install.sh; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  { echo "configure: error: can not find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." 1>&2; exit 1; }
+fi
+ac_config_guess=$ac_aux_dir/config.guess
+ac_config_sub=$ac_aux_dir/config.sub
+ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
+
+
+# Make sure we can run config.sub.
+if ${CONFIG_SHELL-/bin/sh} $ac_config_sub sun4 >/dev/null 2>&1; then :
+else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
+fi
+
+echo $ac_n "checking host system type""... $ac_c" 1>&6
+echo "configure:646: checking host system type" >&5
+
+host_alias=$host
+case "$host_alias" in
+NONE)
+  case $nonopt in
+  NONE)
+    if host_alias=`${CONFIG_SHELL-/bin/sh} $ac_config_guess`; then :
+    else { echo "configure: error: can not guess host type; you must specify one" 1>&2; exit 1; }
+    fi ;;
+  *) host_alias=$nonopt ;;
+  esac ;;
+esac
+
+host=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $host_alias`
+host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+echo "$ac_t""$host" 1>&6
+
+
+opt_curses=no
+opt_shared=no
+
+# Check whether --with-curses or --without-curses was given.
+if test "${with_curses+set}" = set; then
+  withval="$with_curses"
+  opt_curses=$withval
+fi
+
+
+if test "$opt_curses" = "yes"; then
+	prefer_curses=yes
+fi
+
+# We want these before the checks, so the checks can modify their values.
+test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
+
+# Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:687: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_CC="gcc"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+fi
+fi
+CC="$ac_cv_prog_CC"
+if test -n "$CC"; then
+  echo "$ac_t""$CC" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:716: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
+  ac_prog_rejected=no
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then
+        ac_prog_rejected=yes
+	continue
+      fi
+      ac_cv_prog_CC="cc"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# -gt 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    set dummy "$ac_dir/$ac_word" "$@"
+    shift
+    ac_cv_prog_CC="$@"
+  fi
+fi
+fi
+fi
+CC="$ac_cv_prog_CC"
+if test -n "$CC"; then
+  echo "$ac_t""$CC" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+  if test -z "$CC"; then
+    case "`uname -s`" in
+    *win32* | *WIN32*)
+      # Extract the first word of "cl", so it can be a program name with args.
+set dummy cl; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:766: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_CC="cl"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+fi
+fi
+CC="$ac_cv_prog_CC"
+if test -n "$CC"; then
+  echo "$ac_t""$CC" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+ ;;
+    esac
+  fi
+  test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
+fi
+
+echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
+echo "configure:797: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+
+ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
+
+cat > conftest.$ac_ext <<EOF
+#line 807 "configure"
+#include "confdefs.h"
+main(){return(0);}
+EOF
+if { (eval echo configure:811: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  ac_cv_prog_cc_works=yes
+  # If we can't run a trivial program, we are probably using a cross compiler.
+  if (./conftest; exit) 2>/dev/null; then
+    ac_cv_prog_cc_cross=no
+  else
+    ac_cv_prog_cc_cross=yes
+  fi
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  ac_cv_prog_cc_works=no
+fi
+rm -fr conftest*
+
+echo "$ac_t""$ac_cv_prog_cc_works" 1>&6
+if test $ac_cv_prog_cc_works = no; then
+  { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
+fi
+echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
+echo "configure:831: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
+cross_compiling=$ac_cv_prog_cc_cross
+
+echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
+echo "configure:836: checking whether we are using GNU C" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.c <<EOF
+#ifdef __GNUC__
+  yes;
+#endif
+EOF
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:845: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+  ac_cv_prog_gcc=yes
+else
+  ac_cv_prog_gcc=no
+fi
+fi
+
+echo "$ac_t""$ac_cv_prog_gcc" 1>&6
+
+if test $ac_cv_prog_gcc = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+
+ac_test_CFLAGS="${CFLAGS+set}"
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS=
+echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
+echo "configure:864: checking whether ${CC-cc} accepts -g" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  echo 'void f(){}' > conftest.c
+if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
+  ac_cv_prog_cc_g=yes
+else
+  ac_cv_prog_cc_g=no
+fi
+rm -f conftest*
+
+fi
+
+echo "$ac_t""$ac_cv_prog_cc_g" 1>&6
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS="$ac_save_CFLAGS"
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+
+echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
+echo "configure:896: checking how to run the C preprocessor" >&5
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+if eval "test \"`echo '$''{'ac_cv_prog_CPP'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+    # This must be in double quotes, not single quotes, because CPP may get
+  # substituted into the Makefile and "${CC-cc}" will confuse make.
+  CPP="${CC-cc} -E"
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp.
+  cat > conftest.$ac_ext <<EOF
+#line 911 "configure"
+#include "confdefs.h"
+#include <assert.h>
+Syntax Error
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:917: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+  :
+else
+  echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  CPP="${CC-cc} -E -traditional-cpp"
+  cat > conftest.$ac_ext <<EOF
+#line 928 "configure"
+#include "confdefs.h"
+#include <assert.h>
+Syntax Error
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:934: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+  :
+else
+  echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  CPP="${CC-cc} -nologo -E"
+  cat > conftest.$ac_ext <<EOF
+#line 945 "configure"
+#include "confdefs.h"
+#include <assert.h>
+Syntax Error
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:951: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+  :
+else
+  echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  CPP=/lib/cpp
+fi
+rm -f conftest*
+fi
+rm -f conftest*
+fi
+rm -f conftest*
+  ac_cv_prog_CPP="$CPP"
+fi
+  CPP="$ac_cv_prog_CPP"
+else
+  ac_cv_prog_CPP="$CPP"
+fi
+echo "$ac_t""$CPP" 1>&6
+
+ac_safe=`echo "minix/config.h" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for minix/config.h""... $ac_c" 1>&6
+echo "configure:977: checking for minix/config.h" >&5
+if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 982 "configure"
+#include "confdefs.h"
+#include <minix/config.h>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:987: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=yes"
+else
+  echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  MINIX=yes
+else
+  echo "$ac_t""no" 1>&6
+MINIX=
+fi
+
+if test "$MINIX" = yes; then
+  cat >> confdefs.h <<\EOF
+#define _POSIX_SOURCE 1
+EOF
+
+  cat >> confdefs.h <<\EOF
+#define _POSIX_1_SOURCE 2
+EOF
+
+  cat >> confdefs.h <<\EOF
+#define _MINIX 1
+EOF
+
+fi
+
+
+
+ 
+if test "x$cross_compiling" = "xyes"; then
+    case "${host}" in
+    *-cygwin*)
+	cross_cache=${srcdir}/cross-build/cygwin.cache
+	if test -r "${cross_cache}"; then
+	    echo "loading cross-build cache file ${cross_cache}"
+	    . ${cross_cache}
+	fi
+	LOCAL_CFLAGS="$LOCAL_CFLAGS -I${srcdir}/../libtermcap"
+	unset cross_cache
+	;;
+    *)  echo "configure: cross-compiling for a non-cygwin target is not supported" >&2
+	;;
+    esac
+fi
+ 
+if test "x$cross_compiling" = "xyes"; then
+  CROSS_COMPILING_FLAG=-DCROSS_COMPILING
+else
+  CROSS_COMPILING_FLAG=
+fi
+
+ 
+if test -z "$CC_FOR_BUILD"; then
+    if test "x$cross_compiling" = "xno"; then
+        CC_FOR_BUILD='$(CC)'
+    else
+        CC_FOR_BUILD=gcc
+    fi
+fi
+
+ 
+
+
+
+# If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
+test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
+
+if test $ac_cv_prog_gcc = yes; then
+    echo $ac_n "checking whether ${CC-cc} needs -traditional""... $ac_c" 1>&6
+echo "configure:1067: checking whether ${CC-cc} needs -traditional" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_gcc_traditional'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+    ac_pattern="Autoconf.*'x'"
+  cat > conftest.$ac_ext <<EOF
+#line 1073 "configure"
+#include "confdefs.h"
+#include <sgtty.h>
+Autoconf TIOCGETP
+EOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  egrep "$ac_pattern" >/dev/null 2>&1; then
+  rm -rf conftest*
+  ac_cv_prog_gcc_traditional=yes
+else
+  rm -rf conftest*
+  ac_cv_prog_gcc_traditional=no
+fi
+rm -f conftest*
+
+
+  if test $ac_cv_prog_gcc_traditional = no; then
+    cat > conftest.$ac_ext <<EOF
+#line 1091 "configure"
+#include "confdefs.h"
+#include <termio.h>
+Autoconf TCGETA
+EOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  egrep "$ac_pattern" >/dev/null 2>&1; then
+  rm -rf conftest*
+  ac_cv_prog_gcc_traditional=yes
+fi
+rm -f conftest*
+
+  fi
+fi
+
+echo "$ac_t""$ac_cv_prog_gcc_traditional" 1>&6
+  if test $ac_cv_prog_gcc_traditional = yes; then
+    CC="$CC -traditional"
+  fi
+fi
+
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# ./install, which can be erroneously created by make from ./install.sh.
+echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
+echo "configure:1124: checking for a BSD compatible install" >&5
+if test -z "$INSTALL"; then
+if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+    IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS=":"
+  for ac_dir in $PATH; do
+    # Account for people who put trailing slashes in PATH elements.
+    case "$ac_dir/" in
+    /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
+    *)
+      # OSF1 and SCO ODT 3.0 have their own names for install.
+      # Don't use installbsd from OSF since it installs stuff as root
+      # by default.
+      for ac_prog in ginstall scoinst install; do
+        if test -f $ac_dir/$ac_prog; then
+	  if test $ac_prog = install &&
+            grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  else
+	    ac_cv_path_install="$ac_dir/$ac_prog -c"
+	    break 2
+	  fi
+	fi
+      done
+      ;;
+    esac
+  done
+  IFS="$ac_save_IFS"
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL="$ac_cv_path_install"
+  else
+    # As a last resort, use the slow shell script.  We don't cache a
+    # path for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the path is relative.
+    INSTALL="$ac_install_sh"
+  fi
+fi
+echo "$ac_t""$INSTALL" 1>&6
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+# Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:1177: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_RANLIB="ranlib"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+  test -z "$ac_cv_prog_RANLIB" && ac_cv_prog_RANLIB=":"
+fi
+fi
+RANLIB="$ac_cv_prog_RANLIB"
+if test -n "$RANLIB"; then
+  echo "$ac_t""$RANLIB" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+
+echo $ac_n "checking return type of signal handlers""... $ac_c" 1>&6
+echo "configure:1205: checking return type of signal handlers" >&5
+if eval "test \"`echo '$''{'ac_cv_type_signal'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1210 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <signal.h>
+#ifdef signal
+#undef signal
+#endif
+#ifdef __cplusplus
+extern "C" void (*signal (int, void (*)(int)))(int);
+#else
+void (*signal ()) ();
+#endif
+
+int main() {
+int i;
+; return 0; }
+EOF
+if { (eval echo configure:1227: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  ac_cv_type_signal=void
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  ac_cv_type_signal=int
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$ac_cv_type_signal" 1>&6
+cat >> confdefs.h <<EOF
+#define RETSIGTYPE $ac_cv_type_signal
+EOF
+
+
+
+echo $ac_n "checking whether stat file-mode macros are broken""... $ac_c" 1>&6
+echo "configure:1247: checking whether stat file-mode macros are broken" >&5
+if eval "test \"`echo '$''{'ac_cv_header_stat_broken'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1252 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#if defined(S_ISBLK) && defined(S_IFDIR)
+# if S_ISBLK (S_IFDIR)
+You lose.
+# endif
+#endif
+
+#if defined(S_ISBLK) && defined(S_IFCHR)
+# if S_ISBLK (S_IFCHR)
+You lose.
+# endif
+#endif
+
+#if defined(S_ISLNK) && defined(S_IFREG)
+# if S_ISLNK (S_IFREG)
+You lose.
+# endif
+#endif
+
+#if defined(S_ISSOCK) && defined(S_IFREG)
+# if S_ISSOCK (S_IFREG)
+You lose.
+# endif
+#endif
+
+EOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  egrep "You lose" >/dev/null 2>&1; then
+  rm -rf conftest*
+  ac_cv_header_stat_broken=yes
+else
+  rm -rf conftest*
+  ac_cv_header_stat_broken=no
+fi
+rm -f conftest*
+
+fi
+
+echo "$ac_t""$ac_cv_header_stat_broken" 1>&6
+if test $ac_cv_header_stat_broken = yes; then
+  cat >> confdefs.h <<\EOF
+#define STAT_MACROS_BROKEN 1
+EOF
+
+fi
+
+ac_header_dirent=no
+for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h
+do
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for $ac_hdr that defines DIR""... $ac_c" 1>&6
+echo "configure:1307: checking for $ac_hdr that defines DIR" >&5
+if eval "test \"`echo '$''{'ac_cv_header_dirent_$ac_safe'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1312 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <$ac_hdr>
+int main() {
+DIR *dirp = 0;
+; return 0; }
+EOF
+if { (eval echo configure:1320: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  eval "ac_cv_header_dirent_$ac_safe=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_header_dirent_$ac_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_header_dirent_'$ac_safe`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_hdr 1
+EOF
+ ac_header_dirent=$ac_hdr; break
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+# Two versions of opendir et al. are in -ldir and -lx on SCO Xenix.
+if test $ac_header_dirent = dirent.h; then
+echo $ac_n "checking for opendir in -ldir""... $ac_c" 1>&6
+echo "configure:1345: checking for opendir in -ldir" >&5
+ac_lib_var=`echo dir'_'opendir | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-ldir  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 1353 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char opendir();
+
+int main() {
+opendir()
+; return 0; }
+EOF
+if { (eval echo configure:1364: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  LIBS="$LIBS -ldir"
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+else
+echo $ac_n "checking for opendir in -lx""... $ac_c" 1>&6
+echo "configure:1386: checking for opendir in -lx" >&5
+ac_lib_var=`echo x'_'opendir | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-lx  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 1394 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char opendir();
+
+int main() {
+opendir()
+; return 0; }
+EOF
+if { (eval echo configure:1405: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  LIBS="$LIBS -lx"
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+fi
+
+
+for ac_func in strcasecmp select setenv putenv tcgetattr setlocale lstat
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:1431: checking for $ac_func" >&5
+if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1436 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char $ac_func();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+$ac_func();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:1459: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_func 1
+EOF
+ 
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+
+
+echo $ac_n "checking for working strcoll""... $ac_c" 1>&6
+echo "configure:1485: checking for working strcoll" >&5
+if eval "test \"`echo '$''{'ac_cv_func_strcoll_works'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  ac_cv_func_strcoll_works=no
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1493 "configure"
+#include "confdefs.h"
+#include <string.h>
+main ()
+{
+  exit (strcoll ("abc", "def") >= 0 ||
+	strcoll ("ABC", "DEF") >= 0 ||
+	strcoll ("123", "456") >= 0);
+}
+EOF
+if { (eval echo configure:1503: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+  ac_cv_func_strcoll_works=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  ac_cv_func_strcoll_works=no
+fi
+rm -fr conftest*
+fi
+
+fi
+
+echo "$ac_t""$ac_cv_func_strcoll_works" 1>&6
+if test $ac_cv_func_strcoll_works = yes; then
+  cat >> confdefs.h <<\EOF
+#define HAVE_STRCOLL 1
+EOF
+
+fi
+
+
+for ac_hdr in unistd.h stdlib.h varargs.h stdarg.h string.h \
+		sys/ptem.h sys/pte.h sys/stream.h sys/select.h \
+		termcap.h termios.h termio.h sys/file.h locale.h
+do
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
+echo "configure:1532: checking for $ac_hdr" >&5
+if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1537 "configure"
+#include "confdefs.h"
+#include <$ac_hdr>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:1542: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=yes"
+else
+  echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_hdr 1
+EOF
+ 
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+
+
+
+echo $ac_n "checking for type of signal functions""... $ac_c" 1>&6
+echo "configure:1571: checking for type of signal functions" >&5
+if eval "test \"`echo '$''{'bash_cv_signal_vintage'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
+  cat > conftest.$ac_ext <<EOF
+#line 1577 "configure"
+#include "confdefs.h"
+#include <signal.h>
+int main() {
+
+    sigset_t ss;
+    struct sigaction sa;
+    sigemptyset(&ss); sigsuspend(&ss);
+    sigaction(SIGINT, &sa, (struct sigaction *) 0);
+    sigprocmask(SIG_BLOCK, &ss, (sigset_t *) 0);
+  
+; return 0; }
+EOF
+if { (eval echo configure:1590: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  bash_cv_signal_vintage=posix
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  
+    cat > conftest.$ac_ext <<EOF
+#line 1599 "configure"
+#include "confdefs.h"
+#include <signal.h>
+int main() {
+
+	int mask = sigmask(SIGINT);
+	sigsetmask(mask); sigblock(mask); sigpause(mask);
+    
+; return 0; }
+EOF
+if { (eval echo configure:1609: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  bash_cv_signal_vintage=4.2bsd
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  
+      cat > conftest.$ac_ext <<EOF
+#line 1618 "configure"
+#include "confdefs.h"
+
+	#include <signal.h>
+	RETSIGTYPE foo() { }
+int main() {
+
+		int mask = sigmask(SIGINT);
+		sigset(SIGINT, foo); sigrelse(SIGINT);
+		sighold(SIGINT); sigpause(SIGINT);
+        
+; return 0; }
+EOF
+if { (eval echo configure:1631: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  bash_cv_signal_vintage=svr3
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bash_cv_signal_vintage=v7
+    
+fi
+rm -f conftest*
+  
+fi
+rm -f conftest*
+
+fi
+rm -f conftest*
+
+fi
+
+echo "$ac_t""$bash_cv_signal_vintage" 1>&6
+if test "$bash_cv_signal_vintage" = posix; then
+cat >> confdefs.h <<\EOF
+#define HAVE_POSIX_SIGNALS 1
+EOF
+
+elif test "$bash_cv_signal_vintage" = "4.2bsd"; then
+cat >> confdefs.h <<\EOF
+#define HAVE_BSD_SIGNALS 1
+EOF
+
+elif test "$bash_cv_signal_vintage" = svr3; then
+cat >> confdefs.h <<\EOF
+#define HAVE_USG_SIGHOLD 1
+EOF
+
+fi
+
+
+
+echo $ac_n "checking if signal handlers must be reinstalled when invoked""... $ac_c" 1>&6
+echo "configure:1672: checking if signal handlers must be reinstalled when invoked" >&5
+if eval "test \"`echo '$''{'bash_cv_must_reinstall_sighandlers'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  { echo "configure: error: cannot check signal handling if cross compiling -- defaulting to no" 1>&2; exit 1; }
+    bash_cv_must_reinstall_sighandlers=no
+
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1682 "configure"
+#include "confdefs.h"
+
+#include <signal.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+typedef RETSIGTYPE sigfunc();
+
+int nsigint;
+
+#ifdef HAVE_POSIX_SIGNALS
+sigfunc *
+set_signal_handler(sig, handler)
+     int sig;
+     sigfunc *handler;
+{
+  struct sigaction act, oact;
+  act.sa_handler = handler;
+  act.sa_flags = 0;
+  sigemptyset (&act.sa_mask);
+  sigemptyset (&oact.sa_mask);
+  sigaction (sig, &act, &oact);
+  return (oact.sa_handler);
+}
+#else
+#define set_signal_handler(s, h) signal(s, h)
+#endif
+
+RETSIGTYPE
+sigint(s)
+int s;
+{
+  nsigint++;
+}
+
+main()
+{
+	nsigint = 0;
+	set_signal_handler(SIGINT, sigint);
+	kill((int)getpid(), SIGINT);
+	kill((int)getpid(), SIGINT);
+	exit(nsigint != 2);
+}
+
+EOF
+if { (eval echo configure:1729: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+  bash_cv_must_reinstall_sighandlers=no
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  bash_cv_must_reinstall_sighandlers=yes
+fi
+rm -fr conftest*
+fi
+
+fi
+
+echo "$ac_t""$bash_cv_must_reinstall_sighandlers" 1>&6
+if test $bash_cv_must_reinstall_sighandlers = yes; then
+cat >> confdefs.h <<\EOF
+#define MUST_REINSTALL_SIGHANDLERS 1
+EOF
+
+fi
+
+
+
+echo $ac_n "checking for presence of POSIX-style sigsetjmp/siglongjmp""... $ac_c" 1>&6
+echo "configure:1754: checking for presence of POSIX-style sigsetjmp/siglongjmp" >&5
+if eval "test \"`echo '$''{'bash_cv_func_sigsetjmp'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  { echo "configure: error: cannot check for sigsetjmp/siglongjmp if cross-compiling -- defaulting to missing" 1>&2; exit 1; }
+     bash_cv_func_sigsetjmp=missing
+
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1764 "configure"
+#include "confdefs.h"
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <sys/types.h>
+#include <signal.h>
+#include <setjmp.h>
+
+main()
+{
+#if !defined (_POSIX_VERSION) || !defined (HAVE_POSIX_SIGNALS)
+exit (1);
+#else
+
+int code;
+sigset_t set, oset;
+sigjmp_buf xx;
+
+/* get the mask */
+sigemptyset(&set);
+sigemptyset(&oset);
+sigprocmask(SIG_BLOCK, (sigset_t *)NULL, &set);
+sigprocmask(SIG_BLOCK, (sigset_t *)NULL, &oset);
+
+/* save it */
+code = sigsetjmp(xx, 1);
+if (code)
+  exit(0);	/* could get sigmask and compare to oset here. */
+
+/* change it */
+sigaddset(&set, SIGINT);
+sigprocmask(SIG_BLOCK, &set, (sigset_t *)NULL);
+
+/* and siglongjmp */
+siglongjmp(xx, 10);
+exit(1);
+#endif
+}
+EOF
+if { (eval echo configure:1805: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+  bash_cv_func_sigsetjmp=present
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  bash_cv_func_sigsetjmp=missing
+fi
+rm -fr conftest*
+fi
+
+fi
+
+echo "$ac_t""$bash_cv_func_sigsetjmp" 1>&6
+if test $bash_cv_func_sigsetjmp = present; then
+cat >> confdefs.h <<\EOF
+#define HAVE_POSIX_SIGSETJMP 1
+EOF
+
+fi
+
+echo $ac_n "checking for lstat""... $ac_c" 1>&6
+echo "configure:1828: checking for lstat" >&5
+if eval "test \"`echo '$''{'bash_cv_func_lstat'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1833 "configure"
+#include "confdefs.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+int main() {
+ lstat(".",(struct stat *)0); 
+; return 0; }
+EOF
+if { (eval echo configure:1843: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  bash_cv_func_lstat=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bash_cv_func_lstat=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$bash_cv_func_lstat" 1>&6
+if test $bash_cv_func_lstat = yes; then
+  cat >> confdefs.h <<\EOF
+#define HAVE_LSTAT 1
+EOF
+
+fi
+
+echo $ac_n "checking whether programs are able to redeclare getpw functions""... $ac_c" 1>&6
+echo "configure:1864: checking whether programs are able to redeclare getpw functions" >&5
+if eval "test \"`echo '$''{'bash_cv_can_redecl_getpw'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1869 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <pwd.h>
+extern struct passwd *getpwent();
+extern struct passwd *getpwuid();
+extern struct passwd *getpwnam();
+int main() {
+struct passwd *z; z = getpwent(); z = getpwuid(0); z = getpwnam("root");
+; return 0; }
+EOF
+if { (eval echo configure:1880: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bash_cv_can_redecl_getpw=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bash_cv_can_redecl_getpw=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$bash_cv_can_redecl_getpw" 1>&6
+if test $bash_cv_can_redecl_getpw = no; then
+cat >> confdefs.h <<\EOF
+#define HAVE_GETPW_DECLS 1
+EOF
+
+fi
+
+
+echo $ac_n "checking whether or not strcoll and strcmp differ""... $ac_c" 1>&6
+echo "configure:1902: checking whether or not strcoll and strcmp differ" >&5
+if eval "test \"`echo '$''{'bash_cv_func_strcoll_broken'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  { echo "configure: error: cannot check strcoll if cross compiling -- defaulting to no" 1>&2; exit 1; }
+    bash_cv_func_strcoll_broken=no
+
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1912 "configure"
+#include "confdefs.h"
+
+#include <stdio.h>
+#if defined (HAVE_LOCALE_H)
+#include <locale.h>
+#endif
+
+main(c, v)
+int     c;
+char    *v[];
+{
+        int     r1, r2;
+        char    *deflocale, *defcoll;
+
+#ifdef HAVE_SETLOCALE
+        deflocale = setlocale(LC_ALL, "");
+	defcoll = setlocale(LC_COLLATE, "");
+#endif
+
+#ifdef HAVE_STRCOLL
+	/* These two values are taken from tests/glob-test. */
+        r1 = strcoll("abd", "aXd");
+#else
+	r1 = 0;
+#endif
+        r2 = strcmp("abd", "aXd");
+
+	/* These two should both be greater than 0.  It is permissible for
+	   a system to return different values, as long as the sign is the
+	   same. */
+
+        /* Exit with 1 (failure) if these two values are both > 0, since
+	   this tests whether strcoll(3) is broken with respect to strcmp(3)
+	   in the default locale. */
+	exit (r1 > 0 && r2 > 0);
+}
+
+EOF
+if { (eval echo configure:1951: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+  bash_cv_func_strcoll_broken=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  bash_cv_func_strcoll_broken=no
+fi
+rm -fr conftest*
+fi
+
+fi
+
+echo "$ac_t""$bash_cv_func_strcoll_broken" 1>&6
+if test $bash_cv_func_strcoll_broken = yes; then
+cat >> confdefs.h <<\EOF
+#define STRCOLL_BROKEN 1
+EOF
+
+fi
+
+
+echo $ac_n "checking whether signal handlers are of type void""... $ac_c" 1>&6
+echo "configure:1975: checking whether signal handlers are of type void" >&5
+if eval "test \"`echo '$''{'bash_cv_void_sighandler'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1980 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <signal.h>
+#ifdef signal
+#undef signal
+#endif
+#ifdef __cplusplus
+extern "C"
+#endif
+void (*signal ()) ();
+int main() {
+int i;
+; return 0; }
+EOF
+if { (eval echo configure:1995: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bash_cv_void_sighandler=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bash_cv_void_sighandler=no
+fi
+rm -f conftest*
+fi
+echo "$ac_t""$bash_cv_void_sighandler" 1>&6
+if test $bash_cv_void_sighandler = yes; then
+cat >> confdefs.h <<\EOF
+#define VOID_SIGHANDLER 1
+EOF
+
+fi
+
+echo $ac_n "checking for TIOCGWINSZ in sys/ioctl.h""... $ac_c" 1>&6
+echo "configure:2015: checking for TIOCGWINSZ in sys/ioctl.h" >&5
+if eval "test \"`echo '$''{'bash_cv_tiocgwinsz_in_ioctl'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2020 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/ioctl.h>
+int main() {
+int x = TIOCGWINSZ;
+; return 0; }
+EOF
+if { (eval echo configure:2028: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bash_cv_tiocgwinsz_in_ioctl=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bash_cv_tiocgwinsz_in_ioctl=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$bash_cv_tiocgwinsz_in_ioctl" 1>&6
+if test $bash_cv_tiocgwinsz_in_ioctl = yes; then   
+cat >> confdefs.h <<\EOF
+#define GWINSZ_IN_SYS_IOCTL 1
+EOF
+
+fi
+
+echo $ac_n "checking for TIOCSTAT in sys/ioctl.h""... $ac_c" 1>&6
+echo "configure:2049: checking for TIOCSTAT in sys/ioctl.h" >&5
+if eval "test \"`echo '$''{'bash_cv_tiocstat_in_ioctl'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2054 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/ioctl.h>
+int main() {
+int x = TIOCSTAT;
+; return 0; }
+EOF
+if { (eval echo configure:2062: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bash_cv_tiocstat_in_ioctl=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bash_cv_tiocstat_in_ioctl=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$bash_cv_tiocstat_in_ioctl" 1>&6
+if test $bash_cv_tiocstat_in_ioctl = yes; then   
+cat >> confdefs.h <<\EOF
+#define TIOCSTAT_IN_SYS_IOCTL 1
+EOF
+
+fi
+
+echo $ac_n "checking for FIONREAD in sys/ioctl.h""... $ac_c" 1>&6
+echo "configure:2083: checking for FIONREAD in sys/ioctl.h" >&5
+if eval "test \"`echo '$''{'bash_cv_fionread_in_ioctl'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2088 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/ioctl.h>
+int main() {
+int x = FIONREAD;
+; return 0; }
+EOF
+if { (eval echo configure:2096: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bash_cv_fionread_in_ioctl=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bash_cv_fionread_in_ioctl=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$bash_cv_fionread_in_ioctl" 1>&6
+if test $bash_cv_fionread_in_ioctl = yes; then   
+cat >> confdefs.h <<\EOF
+#define FIONREAD_IN_SYS_IOCTL 1
+EOF
+
+fi
+
+echo $ac_n "checking for speed_t in sys/types.h""... $ac_c" 1>&6
+echo "configure:2117: checking for speed_t in sys/types.h" >&5
+if eval "test \"`echo '$''{'bash_cv_speed_t_in_sys_types'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2122 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+int main() {
+speed_t x;
+; return 0; }
+EOF
+if { (eval echo configure:2129: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bash_cv_speed_t_in_sys_types=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bash_cv_speed_t_in_sys_types=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$bash_cv_speed_t_in_sys_types" 1>&6
+if test $bash_cv_speed_t_in_sys_types = yes; then   
+cat >> confdefs.h <<\EOF
+#define SPEED_T_IN_SYS_TYPES 1
+EOF
+
+fi
+
+echo $ac_n "checking for struct winsize in sys/ioctl.h and termios.h""... $ac_c" 1>&6
+echo "configure:2150: checking for struct winsize in sys/ioctl.h and termios.h" >&5
+if eval "test \"`echo '$''{'bash_cv_struct_winsize_header'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2155 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/ioctl.h>
+int main() {
+struct winsize x;
+; return 0; }
+EOF
+if { (eval echo configure:2163: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bash_cv_struct_winsize_header=ioctl_h
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  cat > conftest.$ac_ext <<EOF
+#line 2171 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <termios.h>
+int main() {
+struct winsize x;
+; return 0; }
+EOF
+if { (eval echo configure:2179: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bash_cv_struct_winsize_header=termios_h
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bash_cv_struct_winsize_header=other
+fi
+rm -f conftest*
+
+fi
+rm -f conftest*
+fi
+
+if test $bash_cv_struct_winsize_header = ioctl_h; then
+  echo "$ac_t""sys/ioctl.h" 1>&6
+  cat >> confdefs.h <<\EOF
+#define STRUCT_WINSIZE_IN_SYS_IOCTL 1
+EOF
+
+elif test $bash_cv_struct_winsize_header = termios_h; then
+  echo "$ac_t""termios.h" 1>&6
+  cat >> confdefs.h <<\EOF
+#define STRUCT_WINSIZE_IN_TERMIOS 1
+EOF
+
+else
+  echo "$ac_t""not found" 1>&6
+fi
+
+
+echo $ac_n "checking if struct dirent has a d_ino member""... $ac_c" 1>&6
+echo "configure:2212: checking if struct dirent has a d_ino member" >&5
+if eval "test \"`echo '$''{'bash_cv_dirent_has_dino'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2217 "configure"
+#include "confdefs.h"
+
+#include <stdio.h>
+#include <sys/types.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+#if defined(HAVE_DIRENT_H)
+# include <dirent.h>
+#else
+# define dirent direct
+# ifdef HAVE_SYS_NDIR_H
+#  include <sys/ndir.h>
+# endif /* SYSNDIR */
+# ifdef HAVE_SYS_DIR_H
+#  include <sys/dir.h>
+# endif /* SYSDIR */
+# ifdef HAVE_NDIR_H
+#  include <ndir.h>
+# endif
+#endif /* HAVE_DIRENT_H */
+
+int main() {
+
+struct dirent d; int z; z = d.d_ino;
+
+; return 0; }
+EOF
+if { (eval echo configure:2246: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bash_cv_dirent_has_dino=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bash_cv_dirent_has_dino=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$bash_cv_dirent_has_dino" 1>&6
+if test $bash_cv_dirent_has_dino = yes; then
+cat >> confdefs.h <<\EOF
+#define STRUCT_DIRENT_HAS_D_INO 1
+EOF
+
+fi
+
+
+echo $ac_n "checking if struct dirent has a d_fileno member""... $ac_c" 1>&6
+echo "configure:2268: checking if struct dirent has a d_fileno member" >&5
+if eval "test \"`echo '$''{'bash_cv_dirent_has_d_fileno'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2273 "configure"
+#include "confdefs.h"
+
+#include <stdio.h>
+#include <sys/types.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+#if defined(HAVE_DIRENT_H)
+# include <dirent.h>
+#else
+# define dirent direct
+# ifdef HAVE_SYS_NDIR_H
+#  include <sys/ndir.h>
+# endif /* SYSNDIR */
+# ifdef HAVE_SYS_DIR_H
+#  include <sys/dir.h>
+# endif /* SYSDIR */
+# ifdef HAVE_NDIR_H
+#  include <ndir.h>
+# endif
+#endif /* HAVE_DIRENT_H */
+
+int main() {
+
+struct dirent d; int z; z = d.d_fileno;
+
+; return 0; }
+EOF
+if { (eval echo configure:2302: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bash_cv_dirent_has_d_fileno=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bash_cv_dirent_has_d_fileno=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$bash_cv_dirent_has_d_fileno" 1>&6
+if test $bash_cv_dirent_has_d_fileno = yes; then
+cat >> confdefs.h <<\EOF
+#define STRUCT_DIRENT_HAS_D_FILENO 1
+EOF
+
+fi
+
+
+case "$host_os" in
+aix*)   prefer_curses=yes ;;
+esac
+
+if test "X$bash_cv_termcap_lib" = "X"; then
+_bash_needmsg=yes
+else
+echo $ac_n "checking which library has the termcap functions""... $ac_c" 1>&6
+echo "configure:2331: checking which library has the termcap functions" >&5
+_bash_needmsg=
+fi
+if eval "test \"`echo '$''{'bash_cv_termcap_lib'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  echo $ac_n "checking for tgetent in -ltermcap""... $ac_c" 1>&6
+echo "configure:2338: checking for tgetent in -ltermcap" >&5
+ac_lib_var=`echo termcap'_'tgetent | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-ltermcap  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2346 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char tgetent();
+
+int main() {
+tgetent()
+; return 0; }
+EOF
+if { (eval echo configure:2357: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  bash_cv_termcap_lib=libtermcap
+else
+  echo "$ac_t""no" 1>&6
+echo $ac_n "checking for tgetent in -lcurses""... $ac_c" 1>&6
+echo "configure:2376: checking for tgetent in -lcurses" >&5
+ac_lib_var=`echo curses'_'tgetent | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-lcurses  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2384 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char tgetent();
+
+int main() {
+tgetent()
+; return 0; }
+EOF
+if { (eval echo configure:2395: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  bash_cv_termcap_lib=libcurses
+else
+  echo "$ac_t""no" 1>&6
+echo $ac_n "checking for tgetent in -lncurses""... $ac_c" 1>&6
+echo "configure:2414: checking for tgetent in -lncurses" >&5
+ac_lib_var=`echo ncurses'_'tgetent | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-lncurses  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2422 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char tgetent();
+
+int main() {
+tgetent()
+; return 0; }
+EOF
+if { (eval echo configure:2433: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  bash_cv_termcap_lib=libncurses
+else
+  echo "$ac_t""no" 1>&6
+bash_cv_termcap_lib=gnutermcap
+fi
+
+fi
+
+fi
+
+fi
+
+if test "X$_bash_needmsg" = "Xyes"; then
+echo $ac_n "checking which library has the termcap functions""... $ac_c" 1>&6
+echo "configure:2462: checking which library has the termcap functions" >&5
+fi
+echo "$ac_t""using $bash_cv_termcap_lib" 1>&6
+if test $bash_cv_termcap_lib = gnutermcap && test -z "$prefer_curses"; then
+LDFLAGS="$LDFLAGS -L./lib/termcap"
+TERMCAP_LIB="./lib/termcap/libtermcap.a"
+TERMCAP_DEP="./lib/termcap/libtermcap.a"
+elif test $bash_cv_termcap_lib = libtermcap && test -z "$prefer_curses"; then
+TERMCAP_LIB=-ltermcap
+TERMCAP_DEP=
+elif test $bash_cv_termcap_lib = libncurses; then
+TERMCAP_LIB=-lncurses
+TERMCAP_DEP=
+else
+TERMCAP_LIB=-lcurses
+TERMCAP_DEP=
+fi
+
+if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
+	TERMCAP_LIB=-ltermcap	#default
+fi
+
+case "$host_cpu" in
+*cray*)	LOCAL_CFLAGS=-DCRAY ;;
+esac
+
+case "$host_os" in
+isc*)	LOCAL_CFLAGS=-Disc386 ;;
+esac
+
+BUILD_DIR=`pwd`
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+trap '' 1 2 15
+cat > confcache <<\EOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs.  It is not useful on other systems.
+# If it contains results you don't want to keep, you may remove or edit it.
+#
+# By default, configure uses ./config.cache as the cache file,
+# creating it if it does not exist already.  You can give configure
+# the --cache-file=FILE option to use a different cache file; that is
+# what configure does when it calls configure scripts in
+# subdirectories, so they share the cache.
+# Giving --cache-file=/dev/null disables caching, for debugging configure.
+# config.status only pays attention to the cache file if you give it the
+# --recheck option to rerun configure.
+#
+EOF
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, don't put newlines in cache variables' values.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(set) 2>&1 |
+  case `(ac_space=' '; set) 2>&1 | grep ac_space` in
+  *ac_space=\ *)
+    # `set' does not quote correctly, so add quotes (double-quote substitution
+    # turns \\\\ into \\, and sed turns \\ into \).
+    sed -n \
+      -e "s/'/'\\\\''/g" \
+      -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p"
+    ;;
+  *)
+    # `set' quotes correctly as required by POSIX, so do not add quotes.
+    sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
+    ;;
+  esac >> confcache
+if cmp -s $cache_file confcache; then
+  :
+else
+  if test -w $cache_file; then
+    echo "updating cache $cache_file"
+    cat confcache > $cache_file
+  else
+    echo "not updating unwritable cache $cache_file"
+  fi
+fi
+rm -f confcache
+
+trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+# Any assignment to VPATH causes Sun make to only execute
+# the first set of double-colon rules, so remove it if not needed.
+# If there is a colon in the path, we need to keep it.
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[ 	]*VPATH[ 	]*=[^:]*$/d'
+fi
+
+trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15
+
+DEFS=-DHAVE_CONFIG_H
+
+# Without the "./", some shells look in PATH for config.status.
+: ${CONFIG_STATUS=./config.status}
+
+echo creating $CONFIG_STATUS
+rm -f $CONFIG_STATUS
+cat > $CONFIG_STATUS <<EOF
+#! /bin/sh
+# Generated automatically by configure.
+# Run this file to recreate the current configuration.
+# This directory was configured as follows,
+# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+#
+# $0 $ac_configure_args
+#
+# Compiler output produced by configure, useful for debugging
+# configure, is in ./config.log if it exists.
+
+ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
+for ac_option
+do
+  case "\$ac_option" in
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
+    exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
+  -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
+    echo "$CONFIG_STATUS generated by autoconf version 2.12.2"
+    exit 0 ;;
+  -help | --help | --hel | --he | --h)
+    echo "\$ac_cs_usage"; exit 0 ;;
+  *) echo "\$ac_cs_usage"; exit 1 ;;
+  esac
+done
+
+ac_given_srcdir=$srcdir
+ac_given_INSTALL="$INSTALL"
+
+trap 'rm -fr `echo "Makefile doc/Makefile examples/Makefile config.h" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
+EOF
+cat >> $CONFIG_STATUS <<EOF
+
+# Protect against being on the right side of a sed subst in config.status.
+sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
+ s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
+$ac_vpsub
+$extrasub
+s%@SHELL@%$SHELL%g
+s%@CFLAGS@%$CFLAGS%g
+s%@CPPFLAGS@%$CPPFLAGS%g
+s%@CXXFLAGS@%$CXXFLAGS%g
+s%@DEFS@%$DEFS%g
+s%@LDFLAGS@%$LDFLAGS%g
+s%@LIBS@%$LIBS%g
+s%@exec_prefix@%$exec_prefix%g
+s%@prefix@%$prefix%g
+s%@program_transform_name@%$program_transform_name%g
+s%@bindir@%$bindir%g
+s%@sbindir@%$sbindir%g
+s%@libexecdir@%$libexecdir%g
+s%@datadir@%$datadir%g
+s%@sysconfdir@%$sysconfdir%g
+s%@sharedstatedir@%$sharedstatedir%g
+s%@localstatedir@%$localstatedir%g
+s%@libdir@%$libdir%g
+s%@includedir@%$includedir%g
+s%@oldincludedir@%$oldincludedir%g
+s%@infodir@%$infodir%g
+s%@mandir@%$mandir%g
+s%@host@%$host%g
+s%@host_alias@%$host_alias%g
+s%@host_cpu@%$host_cpu%g
+s%@host_vendor@%$host_vendor%g
+s%@host_os@%$host_os%g
+s%@CC@%$CC%g
+s%@CPP@%$CPP%g
+s%@CROSS_COMPILING_FLAG@%$CROSS_COMPILING_FLAG%g
+s%@CC_FOR_BUILD@%$CC_FOR_BUILD%g
+s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
+s%@INSTALL_DATA@%$INSTALL_DATA%g
+s%@RANLIB@%$RANLIB%g
+s%@BUILD_DIR@%$BUILD_DIR%g
+s%@LOCAL_CFLAGS@%$LOCAL_CFLAGS%g
+s%@LOCAL_LDFLAGS@%$LOCAL_LDFLAGS%g
+s%@LOCAL_DEFS@%$LOCAL_DEFS%g
+s%@LIBVERSION@%$LIBVERSION%g
+s%@TERMCAP_LIB@%$TERMCAP_LIB%g
+
+CEOF
+EOF
+
+cat >> $CONFIG_STATUS <<\EOF
+
+# Split the substitutions into bite-sized pieces for seds with
+# small command number limits, like on Digital OSF/1 and HP-UX.
+ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
+ac_file=1 # Number of current file.
+ac_beg=1 # First line for current file.
+ac_end=$ac_max_sed_cmds # Line after last line for current file.
+ac_more_lines=:
+ac_sed_cmds=""
+while $ac_more_lines; do
+  if test $ac_beg -gt 1; then
+    sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
+  else
+    sed "${ac_end}q" conftest.subs > conftest.s$ac_file
+  fi
+  if test ! -s conftest.s$ac_file; then
+    ac_more_lines=false
+    rm -f conftest.s$ac_file
+  else
+    if test -z "$ac_sed_cmds"; then
+      ac_sed_cmds="sed -f conftest.s$ac_file"
+    else
+      ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
+    fi
+    ac_file=`expr $ac_file + 1`
+    ac_beg=$ac_end
+    ac_end=`expr $ac_end + $ac_max_sed_cmds`
+  fi
+done
+if test -z "$ac_sed_cmds"; then
+  ac_sed_cmds=cat
+fi
+EOF
+
+cat >> $CONFIG_STATUS <<EOF
+
+CONFIG_FILES=\${CONFIG_FILES-"Makefile doc/Makefile examples/Makefile"}
+EOF
+cat >> $CONFIG_STATUS <<\EOF
+for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
+  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
+  case "$ac_file" in
+  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
+       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
+  *) ac_file_in="${ac_file}.in" ;;
+  esac
+
+  # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.
+
+  # Remove last slash and all that follows it.  Not all systems have dirname.
+  ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
+  if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
+    # The file is in a subdirectory.
+    test ! -d "$ac_dir" && mkdir "$ac_dir"
+    ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
+    # A "../" for each directory in $ac_dir_suffix.
+    ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
+  else
+    ac_dir_suffix= ac_dots=
+  fi
+
+  case "$ac_given_srcdir" in
+  .)  srcdir=.
+      if test -z "$ac_dots"; then top_srcdir=.
+      else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
+  /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
+  *) # Relative path.
+    srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
+    top_srcdir="$ac_dots$ac_given_srcdir" ;;
+  esac
+
+  case "$ac_given_INSTALL" in
+  [/$]*) INSTALL="$ac_given_INSTALL" ;;
+  *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
+  esac
+
+  echo creating "$ac_file"
+  rm -f "$ac_file"
+  configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
+  case "$ac_file" in
+  *Makefile*) ac_comsub="1i\\
+# $configure_input" ;;
+  *) ac_comsub= ;;
+  esac
+
+  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
+  sed -e "$ac_comsub
+s%@configure_input@%$configure_input%g
+s%@srcdir@%$srcdir%g
+s%@top_srcdir@%$top_srcdir%g
+s%@INSTALL@%$INSTALL%g
+" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
+fi; done
+rm -f conftest.s*
+
+# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
+# NAME is the cpp macro being defined and VALUE is the value it is being given.
+#
+# ac_d sets the value in "#define NAME VALUE" lines.
+ac_dA='s%^\([ 	]*\)#\([ 	]*define[ 	][ 	]*\)'
+ac_dB='\([ 	][ 	]*\)[^ 	]*%\1#\2'
+ac_dC='\3'
+ac_dD='%g'
+# ac_u turns "#undef NAME" with trailing blanks into "#define NAME VALUE".
+ac_uA='s%^\([ 	]*\)#\([ 	]*\)undef\([ 	][ 	]*\)'
+ac_uB='\([ 	]\)%\1#\2define\3'
+ac_uC=' '
+ac_uD='\4%g'
+# ac_e turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
+ac_eA='s%^\([ 	]*\)#\([ 	]*\)undef\([ 	][ 	]*\)'
+ac_eB='$%\1#\2define\3'
+ac_eC=' '
+ac_eD='%g'
+
+if test "${CONFIG_HEADERS+set}" != set; then
+EOF
+cat >> $CONFIG_STATUS <<EOF
+  CONFIG_HEADERS="config.h"
+EOF
+cat >> $CONFIG_STATUS <<\EOF
+fi
+for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
+  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
+  case "$ac_file" in
+  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
+       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
+  *) ac_file_in="${ac_file}.in" ;;
+  esac
+
+  echo creating $ac_file
+
+  rm -f conftest.frag conftest.in conftest.out
+  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
+  cat $ac_file_inputs > conftest.in
+
+EOF
+
+# Transform confdefs.h into a sed script conftest.vals that substitutes
+# the proper values into config.h.in to produce config.h.  And first:
+# Protect against being on the right side of a sed subst in config.status.
+# Protect against being in an unquoted here document in config.status.
+rm -f conftest.vals
+cat > conftest.hdr <<\EOF
+s/[\\&%]/\\&/g
+s%[\\$`]%\\&%g
+s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD}%gp
+s%ac_d%ac_u%gp
+s%ac_u%ac_e%gp
+EOF
+sed -n -f conftest.hdr confdefs.h > conftest.vals
+rm -f conftest.hdr
+
+# This sed command replaces #undef with comments.  This is necessary, for
+# example, in the case of _POSIX_SOURCE, which is predefined and required
+# on some systems where configure will not decide to define it.
+cat >> conftest.vals <<\EOF
+s%^[ 	]*#[ 	]*undef[ 	][ 	]*[a-zA-Z_][a-zA-Z_0-9]*%/* & */%
+EOF
+
+# Break up conftest.vals because some shells have a limit on
+# the size of here documents, and old seds have small limits too.
+
+rm -f conftest.tail
+while :
+do
+  ac_lines=`grep -c . conftest.vals`
+  # grep -c gives empty output for an empty file on some AIX systems.
+  if test -z "$ac_lines" || test "$ac_lines" -eq 0; then break; fi
+  # Write a limited-size here document to conftest.frag.
+  echo '  cat > conftest.frag <<CEOF' >> $CONFIG_STATUS
+  sed ${ac_max_here_lines}q conftest.vals >> $CONFIG_STATUS
+  echo 'CEOF
+  sed -f conftest.frag conftest.in > conftest.out
+  rm -f conftest.in
+  mv conftest.out conftest.in
+' >> $CONFIG_STATUS
+  sed 1,${ac_max_here_lines}d conftest.vals > conftest.tail
+  rm -f conftest.vals
+  mv conftest.tail conftest.vals
+done
+rm -f conftest.vals
+
+cat >> $CONFIG_STATUS <<\EOF
+  rm -f conftest.frag conftest.h
+  echo "/* $ac_file.  Generated automatically by configure.  */" > conftest.h
+  cat conftest.in >> conftest.h
+  rm -f conftest.in
+  if cmp -s $ac_file conftest.h 2>/dev/null; then
+    echo "$ac_file is unchanged"
+    rm -f conftest.h
+  else
+    # Remove last slash and all that follows it.  Not all systems have dirname.
+      ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
+      if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
+      # The file is in a subdirectory.
+      test ! -d "$ac_dir" && mkdir "$ac_dir"
+    fi
+    rm -f $ac_file
+    mv conftest.h $ac_file
+  fi
+fi; done
+
+EOF
+cat >> $CONFIG_STATUS <<EOF
+
+EOF
+cat >> $CONFIG_STATUS <<\EOF
+
+# Makefile uses this timestamp file to record whether config.h is up to date.
+echo > stamp-h
+
+exit 0
+EOF
+chmod +x $CONFIG_STATUS
+rm -fr confdefs* $ac_clean_files
+test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1
+
diff --git a/readline/configure.in b/readline/configure.in
new file mode 100644
index 00000000000..1e8e7754da2
--- /dev/null
+++ b/readline/configure.in
@@ -0,0 +1,151 @@
+dnl
+dnl Configure script for readline library
+dnl
+dnl report bugs to chet@po.cwru.edu
+dnl
+dnl Process this file with autoconf to produce a configure script.
+AC_REVISION([for Readline 2.2, version 2.07, from autoconf version] AC_ACVERSION)
+LIBVERSION=2.2
+
+AC_INIT(readline.h)
+AC_CONFIG_HEADER(config.h)
+
+dnl make sure we are using a recent autoconf version
+AC_PREREQ(2.10)
+
+dnl AC_CONFIG_AUX_DIR(./support)
+
+AC_CANONICAL_HOST
+
+dnl configure defaults
+opt_curses=no
+opt_shared=no
+
+dnl arguments to configure
+AC_ARG_WITH(curses, --with-curses               use the curses library instead of the termcap library,opt_curses=$withval)
+
+if test "$opt_curses" = "yes"; then
+	prefer_curses=yes
+fi
+
+# We want these before the checks, so the checks can modify their values.
+test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
+
+AC_PROG_CC
+AC_MINIX
+
+
+dnl BEGIN changes for CYGNUS cross-building for Cygwin
+ 
+dnl load up the cross-building cache file -- add more cases and cache
+dnl files as necessary
+if test "x$cross_compiling" = "xyes"; then
+    case "${host}" in
+    *-cygwin*)
+	cross_cache=${srcdir}/cross-build/cygwin.cache
+	if test -r "${cross_cache}"; then
+	    echo "loading cross-build cache file ${cross_cache}"
+	    . ${cross_cache}
+	fi
+	LOCAL_CFLAGS="$LOCAL_CFLAGS -I${srcdir}/../libtermcap"
+	unset cross_cache
+	;;
+    *)  echo "configure: cross-compiling for a non-cygwin target is not supported" >&2
+	;;
+    esac
+fi
+ 
+if test "x$cross_compiling" = "xyes"; then
+  CROSS_COMPILING_FLAG=-DCROSS_COMPILING
+else
+  CROSS_COMPILING_FLAG=
+fi
+AC_SUBST(CROSS_COMPILING_FLAG)
+ 
+if test -z "$CC_FOR_BUILD"; then
+    if test "x$cross_compiling" = "xno"; then
+        CC_FOR_BUILD='$(CC)'
+    else
+        CC_FOR_BUILD=gcc
+    fi
+fi
+AC_SUBST(CC_FOR_BUILD)
+ 
+dnl END changes for CYGNUS cross-building for Cygwin
+
+
+
+# If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
+test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
+
+AC_PROG_GCC_TRADITIONAL
+AC_PROG_INSTALL
+AC_PROG_RANLIB
+
+AC_RETSIGTYPE
+
+AC_HEADER_STAT
+AC_HEADER_DIRENT
+
+AC_CHECK_FUNCS(strcasecmp select setenv putenv tcgetattr setlocale lstat)
+
+AC_FUNC_STRCOLL
+
+AC_CHECK_HEADERS(unistd.h stdlib.h varargs.h stdarg.h string.h \
+		sys/ptem.h sys/pte.h sys/stream.h sys/select.h \
+		termcap.h termios.h termio.h sys/file.h locale.h)
+
+BASH_SIGNAL_CHECK
+BASH_REINSTALL_SIGHANDLERS
+
+BASH_FUNC_POSIX_SETJMP
+BASH_FUNC_LSTAT
+BASH_CHECK_GETPW_FUNCS
+BASH_FUNC_STRCOLL
+
+BASH_TYPE_SIGHANDLER
+BASH_HAVE_TIOCGWINSZ
+BASH_HAVE_TIOCSTAT
+BASH_HAVE_FIONREAD
+BASH_MISC_SPEED_T
+BASH_STRUCT_WINSIZE
+BASH_STRUCT_DIRENT_D_INO
+BASH_STRUCT_DIRENT_D_FILENO
+
+dnl yuck
+case "$host_os" in
+aix*)   prefer_curses=yes ;;
+esac
+BASH_CHECK_LIB_TERMCAP
+if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
+	TERMCAP_LIB=-ltermcap	#default
+fi
+
+case "$host_cpu" in
+*cray*)	LOCAL_CFLAGS=-DCRAY ;;
+esac
+
+case "$host_os" in
+isc*)	LOCAL_CFLAGS=-Disc386 ;;
+esac
+
+BUILD_DIR=`pwd`
+AC_SUBST(BUILD_DIR)
+
+AC_SUBST(CFLAGS)
+AC_SUBST(LOCAL_CFLAGS)
+AC_SUBST(LOCAL_LDFLAGS)
+AC_SUBST(LOCAL_DEFS)
+
+AC_SUBST(host_cpu)
+AC_SUBST(host_os)
+
+AC_SUBST(LIBVERSION)
+
+AC_SUBST(TERMCAP_LIB)
+
+AC_OUTPUT([Makefile doc/Makefile examples/Makefile],
+[
+# Makefile uses this timestamp file to record whether config.h is up to date.
+echo > stamp-h
+])
diff --git a/readline/display.c b/readline/display.c
new file mode 100644
index 00000000000..f7ec69b247c
--- /dev/null
+++ b/readline/display.c
@@ -0,0 +1,1545 @@
+/* display.c -- readline redisplay facility. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#include "posixstat.h"
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <stdio.h>
+
+#if defined (__GO32__)
+#  include <go32.h>
+#  include <pc.h>
+#endif /* __GO32__ */
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Termcap library stuff. */
+#include "tcap.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+#if !defined (strchr) && !defined (__STDC__)
+extern char *strchr (), *strrchr ();
+#endif /* !strchr && !__STDC__ */
+
+/* Global and pseudo-global variables and functions
+   imported from readline.c. */
+extern char *rl_prompt;
+extern int readline_echoing_p;
+
+extern int _rl_output_meta_chars;
+extern int _rl_horizontal_scroll_mode;
+extern int _rl_mark_modified_lines;
+extern int _rl_prefer_visible_bell;
+
+/* Variables and functions imported from terminal.c */
+extern void _rl_output_some_chars ();
+#ifdef _MINIX
+extern void _rl_output_character_function ();
+#else
+extern int _rl_output_character_function ();
+#endif
+extern int _rl_backspace ();
+
+extern char *term_clreol, *term_clrpag;
+extern char *term_im, *term_ic,  *term_ei, *term_DC;
+extern char *term_up, *term_dc, *term_cr, *term_IC;
+extern int screenheight, screenwidth, screenchars;
+extern int terminal_can_insert, _rl_term_autowrap;
+
+/* Pseudo-global functions (local to the readline library) exported
+   by this file. */
+void _rl_move_cursor_relative (), _rl_output_some_chars ();
+void _rl_move_vert ();
+void _rl_clear_to_eol (), _rl_clear_screen ();
+
+static void update_line (), space_to_eol ();
+static void delete_chars (), insert_some_chars ();
+static void cr ();
+
+static int *inv_lbreaks, *vis_lbreaks;
+
+extern char *xmalloc (), *xrealloc ();
+
+/* Heuristic used to decide whether it is faster to move from CUR to NEW
+   by backing up or outputting a carriage return and moving forward. */
+#define CR_FASTER(new, cur) (((new) + 1) < ((cur) - (new)))
+
+/* **************************************************************** */
+/*								    */
+/*			Display stuff				    */
+/*								    */
+/* **************************************************************** */
+
+/* This is the stuff that is hard for me.  I never seem to write good
+   display routines in C.  Let's see how I do this time. */
+
+/* (PWP) Well... Good for a simple line updater, but totally ignores
+   the problems of input lines longer than the screen width.
+
+   update_line and the code that calls it makes a multiple line,
+   automatically wrapping line update.  Careful attention needs
+   to be paid to the vertical position variables. */
+
+/* Keep two buffers; one which reflects the current contents of the
+   screen, and the other to draw what we think the new contents should
+   be.  Then compare the buffers, and make whatever changes to the
+   screen itself that we should.  Finally, make the buffer that we
+   just drew into be the one which reflects the current contents of the
+   screen, and place the cursor where it belongs.
+
+   Commands that want to can fix the display themselves, and then let
+   this function know that the display has been fixed by setting the
+   RL_DISPLAY_FIXED variable.  This is good for efficiency. */
+
+/* Application-specific redisplay function. */
+VFunction *rl_redisplay_function = rl_redisplay;
+
+/* Global variables declared here. */
+/* What YOU turn on when you have handled all redisplay yourself. */
+int rl_display_fixed = 0;
+
+int _rl_suppress_redisplay = 0;
+
+/* The stuff that gets printed out before the actual text of the line.
+   This is usually pointing to rl_prompt. */
+char *rl_display_prompt = (char *)NULL;
+
+/* Pseudo-global variables declared here. */
+/* The visible cursor position.  If you print some text, adjust this. */
+int _rl_last_c_pos = 0;
+int _rl_last_v_pos = 0;
+
+/* Number of lines currently on screen minus 1. */
+int _rl_vis_botlin = 0;
+
+/* Variables used only in this file. */
+/* The last left edge of text that was displayed.  This is used when
+   doing horizontal scrolling.  It shifts in thirds of a screenwidth. */
+static int last_lmargin;
+
+/* The line display buffers.  One is the line currently displayed on
+   the screen.  The other is the line about to be displayed. */
+static char *visible_line = (char *)NULL;
+static char *invisible_line = (char *)NULL;
+
+/* A buffer for `modeline' messages. */
+static char msg_buf[128];
+
+/* Non-zero forces the redisplay even if we thought it was unnecessary. */
+static int forced_display;
+
+/* Default and initial buffer size.  Can grow. */
+static int line_size = 1024;
+
+static char *local_prompt, *local_prompt_prefix;
+static int visible_length, prefix_length;
+
+/* The number of invisible characters in the line currently being
+   displayed on the screen. */
+static int visible_wrap_offset;
+
+/* static so it can be shared between rl_redisplay and update_line */
+static int wrap_offset;
+
+/* The index of the last invisible_character in the prompt string. */
+static int last_invisible;
+
+/* The length (buffer offset) of the first line of the last (possibly
+   multi-line) buffer displayed on the screen. */
+static int visible_first_line_len;
+
+/* Expand the prompt string S and return the number of visible
+   characters in *LP, if LP is not null.  This is currently more-or-less
+   a placeholder for expansion.  LIP, if non-null is a place to store the
+   index of the last invisible character in ther eturned string. */
+
+/* Current implementation:
+	\001 (^A) start non-visible characters
+	\002 (^B) end non-visible characters
+   all characters except \001 and \002 (following a \001) are copied to
+   the returned string; all characters except those between \001 and
+   \002 are assumed to be `visible'. */	
+
+static char *
+expand_prompt (pmt, lp, lip)
+     char *pmt;
+     int *lp, *lip;
+{
+  char *r, *ret, *p;
+  int l, rl, last, ignoring;
+
+  /* Short-circuit if we can. */
+  if (strchr (pmt, RL_PROMPT_START_IGNORE) == 0)
+    {
+      r = savestring (pmt);
+      if (lp)
+	*lp = strlen (r);
+      return r;
+    }
+
+  l = strlen (pmt);
+  r = ret = xmalloc (l + 1);
+  
+  for (rl = ignoring = last = 0, p = pmt; p && *p; p++)
+    {
+      /* This code strips the invisible character string markers
+	 RL_PROMPT_START_IGNORE and RL_PROMPT_END_IGNORE */
+      if (*p == RL_PROMPT_START_IGNORE)
+	{
+	  ignoring++;
+	  continue;
+	}
+      else if (ignoring && *p == RL_PROMPT_END_IGNORE)
+	{
+	  ignoring = 0;
+	  last = r - ret - 1;
+	  continue;
+	}
+      else
+	{
+	  *r++ = *p;
+	  if (!ignoring)
+	    rl++;
+	}
+    }
+
+  *r = '\0';
+  if (lp)
+    *lp = rl;
+  if (lip)
+    *lip = last;
+  return ret;
+}
+
+/*
+ * Expand the prompt string into the various display components, if
+ * necessary.
+ *
+ * local_prompt = expanded last line of string in rl_display_prompt
+ *		  (portion after the final newline)
+ * local_prompt_prefix = portion before last newline of rl_display_prompt,
+ *			 expanded via expand_prompt
+ * visible_length = number of visible characters in local_prompt
+ * prefix_length = number of visible characters in local_prompt_prefix
+ *
+ * This function is called once per call to readline().  It may also be
+ * called arbitrarily to expand the primary prompt.
+ *
+ * The return value is the number of visible characters on the last line
+ * of the (possibly multi-line) prompt.
+ */
+int
+rl_expand_prompt (prompt)
+     char *prompt;
+{
+  char *p, *t;
+  int c;
+
+  /* Clear out any saved values. */
+  if (local_prompt)
+    free (local_prompt);
+  if (local_prompt_prefix)
+    free (local_prompt_prefix);
+  local_prompt = local_prompt_prefix = (char *)0;
+  last_invisible = 0;
+
+  if (prompt == 0 || *prompt == 0)
+    return (0);
+
+  p = strrchr (prompt, '\n');
+  if (!p)
+    {
+      /* The prompt is only one line. */
+      local_prompt = expand_prompt (prompt, &visible_length, &last_invisible);
+      local_prompt_prefix = (char *)0;
+      return (visible_length);
+    }
+  else
+    {
+      /* The prompt spans multiple lines. */
+      t = ++p;
+      local_prompt = expand_prompt (p, &visible_length, &last_invisible);
+      c = *t; *t = '\0';
+      /* The portion of the prompt string up to and including the
+	 final newline is now null-terminated. */
+      local_prompt_prefix = expand_prompt (prompt, &prefix_length, (int *)NULL);
+      *t = c;
+      return (prefix_length);
+    }
+}
+
+/* Basic redisplay algorithm. */
+void
+rl_redisplay ()
+{
+  register int in, out, c, linenum, cursor_linenum;
+  register char *line;
+  int c_pos, inv_botlin, lb_botlin, lb_linenum;
+  int newlines, lpos, temp;
+  char *prompt_this_line;
+
+  if (!readline_echoing_p)
+    return;
+
+  if (!rl_display_prompt)
+    rl_display_prompt = "";
+
+  if (invisible_line == 0)
+    {
+      visible_line = xmalloc (line_size);
+      invisible_line = xmalloc (line_size);
+      for (in = 0; in < line_size; in++)
+	{
+	  visible_line[in] = 0;
+	  invisible_line[in] = 1;
+	}
+
+      /* should be enough, but then again, this is just for testing. */
+      inv_lbreaks = (int *)malloc (256 * sizeof (int));
+      vis_lbreaks = (int *)malloc (256 * sizeof (int));
+      inv_lbreaks[0] = vis_lbreaks[0] = 0;
+
+      rl_on_new_line ();
+    }
+
+  /* Draw the line into the buffer. */
+  c_pos = -1;
+
+  line = invisible_line;
+  out = inv_botlin = 0;
+
+  /* Mark the line as modified or not.  We only do this for history
+     lines. */
+  if (_rl_mark_modified_lines && current_history () && rl_undo_list)
+    {
+      line[out++] = '*';
+      line[out] = '\0';
+    }
+
+  /* If someone thought that the redisplay was handled, but the currently
+     visible line has a different modification state than the one about
+     to become visible, then correct the caller's misconception. */
+  if (visible_line[0] != invisible_line[0])
+    rl_display_fixed = 0;
+
+  /* If the prompt to be displayed is the `primary' readline prompt (the
+     one passed to readline()), use the values we have already expanded.
+     If not, use what's already in rl_display_prompt.  WRAP_OFFSET is the
+     number of non-visible characters in the prompt string. */
+  if (rl_display_prompt == rl_prompt || local_prompt)
+    {
+      int local_len = local_prompt ? strlen (local_prompt) : 0;
+      if (local_prompt_prefix && forced_display)
+	_rl_output_some_chars (local_prompt_prefix, strlen (local_prompt_prefix));
+
+      if (local_len > 0)
+	{
+	  strncpy (line + out, local_prompt, local_len);
+	  out += local_len;
+	}
+      line[out] = '\0';
+      wrap_offset = local_len - visible_length;
+    }
+  else
+    {
+      int pmtlen;
+      prompt_this_line = strrchr (rl_display_prompt, '\n');
+      if (!prompt_this_line)
+	prompt_this_line = rl_display_prompt;
+      else
+	{
+	  prompt_this_line++;
+	  if (forced_display)
+	    {
+	      _rl_output_some_chars (rl_display_prompt, prompt_this_line - rl_display_prompt);
+	      /* Make sure we are at column zero even after a newline,
+		 regardless of the state of terminal output processing. */
+	      if (prompt_this_line[-2] != '\r')
+		cr ();
+	    }
+	}
+
+      pmtlen = strlen (prompt_this_line);
+      strncpy (line + out,  prompt_this_line, pmtlen);
+      out += pmtlen;
+      line[out] = '\0';
+      wrap_offset = 0;
+    }
+
+#define CHECK_LPOS() \
+      do { \
+        lpos++; \
+        if (lpos >= screenwidth) \
+          { \
+            inv_lbreaks[++newlines] = out; \
+            lpos = 0; \
+          } \
+      } while (0)
+
+  /* inv_lbreaks[i] is where line i starts in the buffer. */
+  inv_lbreaks[newlines = 0] = 0;
+  lpos = out - wrap_offset;
+
+  /* XXX - what if lpos is already >= screenwidth before we start drawing the
+     contents of the command line? */
+  while (lpos >= screenwidth)
+    {
+#if 0
+      temp = ((newlines + 1) * screenwidth) - ((newlines == 0) ? wrap_offset : 0);
+#else
+      /* XXX - possible fix from Darin Johnson <darin@acuson.com> for prompt
+	 string with invisible characters that is longer than the screen
+	 width. */
+      temp = ((newlines + 1) * screenwidth) + ((newlines == 0) ? wrap_offset : 0);
+#endif
+      inv_lbreaks[++newlines] = temp;
+      lpos -= screenwidth;
+    }
+
+  lb_linenum = 0;
+  for (in = 0; in < rl_end; in++)
+    {
+      c = (unsigned char)rl_line_buffer[in];
+
+      if (out + 8 >= line_size)		/* XXX - 8 for \t */
+	{
+	  line_size *= 2;
+	  visible_line = xrealloc (visible_line, line_size);
+	  invisible_line = xrealloc (invisible_line, line_size);
+	  line = invisible_line;
+	}
+
+      if (in == rl_point)
+	{
+	  c_pos = out;
+	  lb_linenum = newlines;
+	}
+
+      if (META_CHAR (c))
+	{
+	  if (_rl_output_meta_chars == 0)
+	    {
+	      sprintf (line + out, "\\%o", c);
+
+	      if (lpos + 4 >= screenwidth)
+		{
+		  temp = screenwidth - lpos;
+		  inv_lbreaks[++newlines] = out + temp;
+		  lpos = 4 - temp;
+		}
+	      else
+		lpos += 4;
+
+	      out += 4;
+	    }
+	  else
+	    {
+	      line[out++] = c;
+	      CHECK_LPOS();
+	    }
+	}
+#if defined (DISPLAY_TABS)
+      else if (c == '\t')
+	{
+	  register int temp, newout;
+	  newout = (out | (int)7) + 1;
+	  temp = newout - out;
+	  if (lpos + temp >= screenwidth)
+	    {
+	      register int temp2;
+	      temp2 = screenwidth - lpos;
+	      inv_lbreaks[++newlines] = out + temp2;
+	      lpos = temp - temp2;
+	      while (out < newout)
+		line[out++] = ' ';
+	    }
+	  else
+	    {
+	      while (out < newout)
+		line[out++] = ' ';
+	      lpos += temp;
+	    }
+	}
+#endif
+      else if (c == '\n' && _rl_horizontal_scroll_mode == 0 && term_up && *term_up)
+        {
+          line[out++] = '\0';	/* XXX - sentinel */
+          inv_lbreaks[++newlines] = out;
+          lpos = 0;
+        }
+      else if (CTRL_CHAR (c) || c == RUBOUT)
+	{
+	  line[out++] = '^';
+	  CHECK_LPOS();
+	  line[out++] = CTRL_CHAR (c) ? UNCTRL (c) : '?';
+	  CHECK_LPOS();
+	}
+      else
+	{
+	  line[out++] = c;
+	  CHECK_LPOS();
+	}
+    }
+  line[out] = '\0';
+  if (c_pos < 0)
+    {
+      c_pos = out;
+      lb_linenum = newlines;
+    }
+
+  inv_botlin = lb_botlin = newlines;
+  inv_lbreaks[newlines+1] = out;
+  cursor_linenum = lb_linenum;
+
+  /* C_POS == position in buffer where cursor should be placed. */
+
+  /* PWP: now is when things get a bit hairy.  The visible and invisible
+     line buffers are really multiple lines, which would wrap every
+     (screenwidth - 1) characters.  Go through each in turn, finding
+     the changed region and updating it.  The line order is top to bottom. */
+
+  /* If we can move the cursor up and down, then use multiple lines,
+     otherwise, let long lines display in a single terminal line, and
+     horizontally scroll it. */
+
+  if (_rl_horizontal_scroll_mode == 0 && term_up && *term_up)
+    {
+      int nleft, pos, changed_screen_line;
+
+      if (!rl_display_fixed || forced_display)
+	{
+	  forced_display = 0;
+
+	  /* If we have more than a screenful of material to display, then
+	     only display a screenful.  We should display the last screen,
+	     not the first.  */
+	  if (out >= screenchars)
+	    out = screenchars - 1;
+
+	  /* The first line is at character position 0 in the buffer.  The
+	     second and subsequent lines start at inv_lbreaks[N], offset by
+	     OFFSET (which has already been calculated above).  */
+
+#define W_OFFSET(line, offset) ((line) == 0 ? offset : 0)
+#define VIS_LLEN(l)	((l) > _rl_vis_botlin ? 0 : (vis_lbreaks[l+1] - vis_lbreaks[l]))
+#define INV_LLEN(l)	(inv_lbreaks[l+1] - inv_lbreaks[l])
+#define VIS_CHARS(line) (visible_line + vis_lbreaks[line])
+#define VIS_LINE(line) ((line) > _rl_vis_botlin) ? "" : VIS_CHARS(line)
+#define INV_LINE(line) (invisible_line + inv_lbreaks[line])
+
+	  /* For each line in the buffer, do the updating display. */
+	  for (linenum = 0; linenum <= inv_botlin; linenum++)
+	    {
+	      update_line (VIS_LINE(linenum), INV_LINE(linenum), linenum,
+			   VIS_LLEN(linenum), INV_LLEN(linenum), inv_botlin);
+
+	      /* If this is the line with the prompt, we might need to
+		 compensate for invisible characters in the new line. Do
+		 this only if there is not more than one new line (which
+		 implies that we completely overwrite the old visible line)
+		 and the new line is shorter than the old.  Make sure we are
+		 at the end of the new line before clearing. */
+	      if (linenum == 0 &&
+		  inv_botlin == 0 && _rl_last_c_pos == out &&
+		  (wrap_offset > visible_wrap_offset) &&
+		  (_rl_last_c_pos < visible_first_line_len))
+		{
+		  nleft = screenwidth + wrap_offset - _rl_last_c_pos;
+		  if (nleft)
+		    _rl_clear_to_eol (nleft);
+		}
+
+	      /* Since the new first line is now visible, save its length. */
+	      if (linenum == 0)
+		visible_first_line_len = (inv_botlin > 0) ? inv_lbreaks[1] : out - wrap_offset;
+	    }
+
+	  /* We may have deleted some lines.  If so, clear the left over
+	     blank ones at the bottom out. */
+	  if (_rl_vis_botlin > inv_botlin)
+	    {
+	      char *tt;
+	      for (; linenum <= _rl_vis_botlin; linenum++)
+		{
+		  tt = VIS_CHARS (linenum);
+		  _rl_move_vert (linenum);
+		  _rl_move_cursor_relative (0, tt);
+		  _rl_clear_to_eol
+		    ((linenum == _rl_vis_botlin) ? strlen (tt) : screenwidth);
+		}
+	    }
+	  _rl_vis_botlin = inv_botlin;
+
+	  /* CHANGED_SCREEN_LINE is set to 1 if we have moved to a
+	     different screen line during this redisplay. */
+	  changed_screen_line = _rl_last_v_pos != cursor_linenum;
+	  if (changed_screen_line)
+	    {
+	      _rl_move_vert (cursor_linenum);
+	      /* If we moved up to the line with the prompt using term_up,
+	         the physical cursor position on the screen stays the same,
+	         but the buffer position needs to be adjusted to account
+	         for invisible characters. */
+	      if (cursor_linenum == 0 && wrap_offset)
+	        _rl_last_c_pos += wrap_offset;
+	    }
+
+	  /* We have to reprint the prompt if it contains invisible
+	     characters, since it's not generally OK to just reprint
+	     the characters from the current cursor position.  But we
+	     only need to reprint it if the cursor is before the last
+	     invisible character in the prompt string. */
+	  nleft = visible_length + wrap_offset;
+	  if (cursor_linenum == 0 && wrap_offset > 0 && _rl_last_c_pos > 0 &&
+	      _rl_last_c_pos <= last_invisible && local_prompt)
+	    {
+	      if (term_cr)
+		tputs (term_cr, 1, _rl_output_character_function);
+	      _rl_output_some_chars (local_prompt, nleft);
+	      _rl_last_c_pos = nleft;
+	    }
+
+	  /* Where on that line?  And where does that line start
+	     in the buffer? */
+	  pos = inv_lbreaks[cursor_linenum];
+	  /* nleft == number of characters in the line buffer between the
+	     start of the line and the cursor position. */
+	  nleft = c_pos - pos;
+
+	  /* Since _rl_backspace() doesn't know about invisible characters in the
+	     prompt, and there's no good way to tell it, we compensate for
+	     those characters here and call _rl_backspace() directly. */
+	  if (wrap_offset && cursor_linenum == 0 && nleft < _rl_last_c_pos)
+	    {
+	      _rl_backspace (_rl_last_c_pos - nleft);
+	      _rl_last_c_pos = nleft;
+	    }
+
+	  if (nleft != _rl_last_c_pos)
+	    _rl_move_cursor_relative (nleft, &invisible_line[pos]);
+	}
+    }
+  else				/* Do horizontal scrolling. */
+    {
+#define M_OFFSET(margin, offset) ((margin) == 0 ? offset : 0)
+      int lmargin, ndisp, nleft, phys_c_pos, t;
+
+      /* Always at top line. */
+      _rl_last_v_pos = 0;
+
+      /* Compute where in the buffer the displayed line should start.  This
+	 will be LMARGIN. */
+
+      /* The number of characters that will be displayed before the cursor. */
+      ndisp = c_pos - wrap_offset;
+      nleft  = visible_length + wrap_offset;
+      /* Where the new cursor position will be on the screen.  This can be
+         longer than SCREENWIDTH; if it is, lmargin will be adjusted. */
+      phys_c_pos = c_pos - (last_lmargin ? last_lmargin : wrap_offset);
+      t = screenwidth / 3;
+
+      /* If the number of characters had already exceeded the screenwidth,
+         last_lmargin will be > 0. */
+
+      /* If the number of characters to be displayed is more than the screen
+         width, compute the starting offset so that the cursor is about
+         two-thirds of the way across the screen. */
+      if (phys_c_pos > screenwidth - 2)
+	{
+	  lmargin = c_pos - (2 * t);
+	  if (lmargin < 0)
+	    lmargin = 0;
+	  /* If the left margin would be in the middle of a prompt with
+	     invisible characters, don't display the prompt at all. */
+	  if (wrap_offset && lmargin > 0 && lmargin < nleft)
+	    lmargin = nleft;
+	}
+      else if (ndisp < screenwidth - 2)		/* XXX - was -1 */
+        lmargin = 0;
+      else if (phys_c_pos < 1)
+	{
+	  /* If we are moving back towards the beginning of the line and
+	     the last margin is no longer correct, compute a new one. */
+	  lmargin = ((c_pos - 1) / t) * t;	/* XXX */
+	  if (wrap_offset && lmargin > 0 && lmargin < nleft)
+	    lmargin = nleft;
+	}
+      else
+        lmargin = last_lmargin;
+
+      /* If the first character on the screen isn't the first character
+	 in the display line, indicate this with a special character. */
+      if (lmargin > 0)
+	line[lmargin] = '<';
+
+      /* If SCREENWIDTH characters starting at LMARGIN do not encompass
+         the whole line, indicate that with a special characters at the
+         right edge of the screen.  If LMARGIN is 0, we need to take the
+         wrap offset into account. */
+      t = lmargin + M_OFFSET (lmargin, wrap_offset) + screenwidth;
+      if (t < out)
+        line[t - 1] = '>';
+
+      if (!rl_display_fixed || forced_display || lmargin != last_lmargin)
+	{
+	  forced_display = 0;
+	  update_line (&visible_line[last_lmargin],
+		       &invisible_line[lmargin],
+		       0,
+		       screenwidth + visible_wrap_offset,
+		       screenwidth + (lmargin ? 0 : wrap_offset),
+		       0);
+
+	  /* If the visible new line is shorter than the old, but the number
+	     of invisible characters is greater, and we are at the end of
+	     the new line, we need to clear to eol. */
+	  t = _rl_last_c_pos - M_OFFSET (lmargin, wrap_offset);
+	  if ((M_OFFSET (lmargin, wrap_offset) > visible_wrap_offset) &&
+	      (_rl_last_c_pos == out) &&
+	      t < visible_first_line_len)
+	    {
+	      nleft = screenwidth - t;
+	      _rl_clear_to_eol (nleft);
+	    }
+	  visible_first_line_len = out - lmargin - M_OFFSET (lmargin, wrap_offset);
+	  if (visible_first_line_len > screenwidth)
+	    visible_first_line_len = screenwidth;
+
+	  _rl_move_cursor_relative (c_pos - lmargin, &invisible_line[lmargin]);
+	  last_lmargin = lmargin;
+	}
+    }
+  fflush (rl_outstream);
+
+  /* Swap visible and non-visible lines. */
+  {
+    char *temp = visible_line;
+    int *itemp = vis_lbreaks;
+    visible_line = invisible_line;
+    invisible_line = temp;
+    vis_lbreaks = inv_lbreaks;
+    inv_lbreaks = itemp;
+    rl_display_fixed = 0;
+    /* If we are displaying on a single line, and last_lmargin is > 0, we
+       are not displaying any invisible characters, so set visible_wrap_offset
+       to 0. */
+    if (_rl_horizontal_scroll_mode && last_lmargin)
+      visible_wrap_offset = 0;
+    else
+      visible_wrap_offset = wrap_offset;
+  }
+}
+
+/* PWP: update_line() is based on finding the middle difference of each
+   line on the screen; vis:
+
+			     /old first difference
+	/beginning of line   |	      /old last same       /old EOL
+	v		     v	      v		    v
+old:	eddie> Oh, my little gruntle-buggy is to me, as lurgid as
+new:	eddie> Oh, my little buggy says to me, as lurgid as
+	^		     ^	^			   ^
+	\beginning of line   |	\new last same	   \new end of line
+			     \new first difference
+
+   All are character pointers for the sake of speed.  Special cases for
+   no differences, as well as for end of line additions must be handeled.
+
+   Could be made even smarter, but this works well enough */
+static void
+update_line (old, new, current_line, omax, nmax, inv_botlin)
+     register char *old, *new;
+     int current_line, omax, nmax, inv_botlin;
+{
+  register char *ofd, *ols, *oe, *nfd, *nls, *ne;
+  int temp, lendiff, wsatend, od, nd;
+  int current_invis_chars;
+
+  /* If we're at the right edge of a terminal that supports xn, we're
+     ready to wrap around, so do so.  This fixes problems with knowing
+     the exact cursor position and cut-and-paste with certain terminal
+     emulators.  In this calculation, TEMP is the physical screen
+     position of the cursor. */
+  temp = _rl_last_c_pos - W_OFFSET(_rl_last_v_pos, visible_wrap_offset);
+  if (temp == screenwidth && _rl_term_autowrap && !_rl_horizontal_scroll_mode
+      && _rl_last_v_pos == current_line - 1)
+    {
+      if (new[0])
+	putc (new[0], rl_outstream);
+      else
+	putc (' ', rl_outstream);
+      _rl_last_c_pos = 1;		/* XXX */
+      _rl_last_v_pos++;
+      if (old[0] && new[0])
+        old[0] = new[0];
+    }
+      
+  /* Find first difference. */
+  for (ofd = old, nfd = new;
+       (ofd - old < omax) && *ofd && (*ofd == *nfd);
+       ofd++, nfd++)
+    ;
+
+  /* Move to the end of the screen line.  ND and OD are used to keep track
+     of the distance between ne and new and oe and old, respectively, to
+     move a subtraction out of each loop. */
+  for (od = ofd - old, oe = ofd; od < omax && *oe; oe++, od++);
+  for (nd = nfd - new, ne = nfd; nd < nmax && *ne; ne++, nd++);
+
+  /* If no difference, continue to next line. */
+  if (ofd == oe && nfd == ne)
+    return;
+
+  wsatend = 1;			/* flag for trailing whitespace */
+  ols = oe - 1;			/* find last same */
+  nls = ne - 1;
+  while ((ols > ofd) && (nls > nfd) && (*ols == *nls))
+    {
+      if (*ols != ' ')
+	wsatend = 0;
+      ols--;
+      nls--;
+    }
+
+  if (wsatend)
+    {
+      ols = oe;
+      nls = ne;
+    }
+  else if (*ols != *nls)
+    {
+      if (*ols)			/* don't step past the NUL */
+	ols++;
+      if (*nls)
+	nls++;
+    }
+
+  /* count of invisible characters in the current invisible line. */
+  current_invis_chars = W_OFFSET (current_line, wrap_offset);
+  if (_rl_last_v_pos != current_line)
+    {
+      _rl_move_vert (current_line);
+      if (current_line == 0 && visible_wrap_offset)
+	_rl_last_c_pos += visible_wrap_offset;
+    }
+
+  /* If this is the first line and there are invisible characters in the
+     prompt string, and the prompt string has not changed, and the current
+     cursor position is before the last invisible character in the prompt,
+     and the index of the character to move to is past the end of the prompt
+     string, then redraw the entire prompt string.  We can only do this
+     reliably if the terminal supports a `cr' capability.
+
+     This is not an efficiency hack -- there is a problem with redrawing
+     portions of the prompt string if they contain terminal escape
+     sequences (like drawing the `unbold' sequence without a corresponding
+     `bold') that manifests itself on certain terminals. */
+
+  lendiff = local_prompt ? strlen (local_prompt) : 0;
+  od = ofd - old;	/* index of first difference in visible line */
+  if (current_line == 0 && !_rl_horizontal_scroll_mode &&
+      term_cr && lendiff > visible_length && _rl_last_c_pos > 0 &&
+      od > lendiff && _rl_last_c_pos < last_invisible)
+    {
+      tputs (term_cr, 1, _rl_output_character_function);
+      _rl_output_some_chars (local_prompt, lendiff);
+      _rl_last_c_pos = lendiff;
+    }
+
+  _rl_move_cursor_relative (od, old);
+
+  /* if (len (new) > len (old)) */
+  lendiff = (nls - nfd) - (ols - ofd);
+
+  /* If we are changing the number of invisible characters in a line, and
+     the spot of first difference is before the end of the invisible chars,
+     lendiff needs to be adjusted. */
+  if (current_line == 0 && !_rl_horizontal_scroll_mode &&
+      current_invis_chars != visible_wrap_offset)
+    {
+      temp = visible_wrap_offset - current_invis_chars;
+      lendiff += temp;
+    }
+
+  /* Insert (diff (len (old), len (new)) ch. */
+  temp = ne - nfd;
+  if (lendiff > 0)
+    {
+      /* Non-zero if we're increasing the number of lines. */
+      int gl = current_line >= _rl_vis_botlin && inv_botlin > _rl_vis_botlin;
+      /* Sometimes it is cheaper to print the characters rather than
+	 use the terminal's capabilities.  If we're growing the number
+	 of lines, make sure we actually cause the new line to wrap
+	 around on auto-wrapping terminals. */
+      if (terminal_can_insert && ((2 * temp) >= lendiff || term_IC) && (!_rl_term_autowrap || !gl))
+	{
+	  /* If lendiff > visible_length and _rl_last_c_pos == 0 and
+	     _rl_horizontal_scroll_mode == 1, inserting the characters with
+	     term_IC or term_ic will screw up the screen because of the
+	     invisible characters.  We need to just draw them. */
+	  if (*ols && (!_rl_horizontal_scroll_mode || _rl_last_c_pos > 0 ||
+			lendiff <= visible_length || !current_invis_chars))
+	    {
+	      insert_some_chars (nfd, lendiff);
+	      _rl_last_c_pos += lendiff;
+	    }
+	  else if (*ols == 0)
+	    {
+	      /* At the end of a line the characters do not have to
+		 be "inserted".  They can just be placed on the screen. */
+	      /* However, this screws up the rest of this block, which
+	         assumes you've done the insert because you can. */
+	      _rl_output_some_chars (nfd, lendiff);
+	      _rl_last_c_pos += lendiff;
+	    }
+	  else
+	    {
+	      /* We have horizontal scrolling and we are not inserting at
+		 the end.  We have invisible characters in this line.  This
+		 is a dumb update. */
+	      _rl_output_some_chars (nfd, temp);
+	      _rl_last_c_pos += temp;
+	      return;
+	    }
+	  /* Copy (new) chars to screen from first diff to last match. */
+	  temp = nls - nfd;
+	  if ((temp - lendiff) > 0)
+	    {
+	      _rl_output_some_chars (nfd + lendiff, temp - lendiff);
+	      _rl_last_c_pos += temp - lendiff;
+	    }
+	}
+      else
+	{
+	  /* cannot insert chars, write to EOL */
+	  _rl_output_some_chars (nfd, temp);
+	  _rl_last_c_pos += temp;
+	}
+    }
+  else				/* Delete characters from line. */
+    {
+      /* If possible and inexpensive to use terminal deletion, then do so. */
+      if (term_dc && (2 * temp) >= -lendiff)
+	{
+	  /* If all we're doing is erasing the invisible characters in the
+	     prompt string, don't bother.  It screws up the assumptions
+	     about what's on the screen. */
+	  if (_rl_horizontal_scroll_mode && _rl_last_c_pos == 0 &&
+	      -lendiff == visible_wrap_offset)
+	    lendiff = 0;
+
+	  if (lendiff)
+	    delete_chars (-lendiff); /* delete (diff) characters */
+
+	  /* Copy (new) chars to screen from first diff to last match */
+	  temp = nls - nfd;
+	  if (temp > 0)
+	    {
+	      _rl_output_some_chars (nfd, temp);
+	      _rl_last_c_pos += temp;
+	    }
+	}
+      /* Otherwise, print over the existing material. */
+      else
+	{
+	  if (temp > 0)
+	    {
+	      _rl_output_some_chars (nfd, temp);
+	      _rl_last_c_pos += temp;
+	    }
+	  lendiff = (oe - old) - (ne - new);
+	  if (_rl_term_autowrap && current_line < inv_botlin)
+	    space_to_eol (lendiff);
+	  else
+	    _rl_clear_to_eol (lendiff);
+	}
+    }
+}
+
+/* Tell the update routines that we have moved onto a new (empty) line. */
+int
+rl_on_new_line ()
+{
+  if (visible_line)
+    visible_line[0] = '\0';
+
+  _rl_last_c_pos = _rl_last_v_pos = 0;
+  _rl_vis_botlin = last_lmargin = 0;
+  if (vis_lbreaks)
+    vis_lbreaks[0] = vis_lbreaks[1] = 0;
+  visible_wrap_offset = 0;
+  return 0;
+}
+
+/* Actually update the display, period. */
+int
+rl_forced_update_display ()
+{
+  if (visible_line)
+    {
+      register char *temp = visible_line;
+
+      while (*temp)
+        *temp++ = '\0';
+    }
+  rl_on_new_line ();
+  forced_display++;
+  (*rl_redisplay_function) ();
+  return 0;
+}
+
+/* Move the cursor from _rl_last_c_pos to NEW, which are buffer indices.
+   DATA is the contents of the screen line of interest; i.e., where
+   the movement is being done. */
+void
+_rl_move_cursor_relative (new, data)
+     int new;
+     char *data;
+{
+  register int i;
+
+  /* If we don't have to do anything, then return. */
+  if (_rl_last_c_pos == new) return;
+
+  /* It may be faster to output a CR, and then move forwards instead
+     of moving backwards. */
+  /* i == current physical cursor position. */
+  i = _rl_last_c_pos - W_OFFSET(_rl_last_v_pos, visible_wrap_offset);
+  if (new == 0 || CR_FASTER (new, _rl_last_c_pos) ||
+      (_rl_term_autowrap && i == screenwidth))
+    {
+#if defined (__MSDOS__)
+      putc ('\r', rl_outstream);
+#else
+      tputs (term_cr, 1, _rl_output_character_function);
+#endif /* !__MSDOS__ */
+      _rl_last_c_pos = 0;
+    }
+
+  if (_rl_last_c_pos < new)
+    {
+      /* Move the cursor forward.  We do it by printing the command
+	 to move the cursor forward if there is one, else print that
+	 portion of the output buffer again.  Which is cheaper? */
+
+      /* The above comment is left here for posterity.  It is faster
+	 to print one character (non-control) than to print a control
+	 sequence telling the terminal to move forward one character.
+	 That kind of control is for people who don't know what the
+	 data is underneath the cursor. */
+#if defined (HACK_TERMCAP_MOTION)
+      extern char *term_forward_char;
+
+      if (term_forward_char)
+	for (i = _rl_last_c_pos; i < new; i++)
+	  tputs (term_forward_char, 1, _rl_output_character_function);
+      else
+	for (i = _rl_last_c_pos; i < new; i++)
+	  putc (data[i], rl_outstream);
+#else
+      for (i = _rl_last_c_pos; i < new; i++)
+	putc (data[i], rl_outstream);
+#endif /* HACK_TERMCAP_MOTION */
+    }
+  else if (_rl_last_c_pos != new)
+    _rl_backspace (_rl_last_c_pos - new);
+  _rl_last_c_pos = new;
+}
+
+/* PWP: move the cursor up or down. */
+void
+_rl_move_vert (to)
+     int to;
+{
+  register int delta, i;
+
+  if (_rl_last_v_pos == to || to > screenheight)
+    return;
+
+#if defined (__GO32__)
+  {
+    int row, col;
+
+    ScreenGetCursor (&row, &col);
+    ScreenSetCursor ((row + to - _rl_last_v_pos), col);
+  }
+#else /* !__GO32__ */
+
+  if ((delta = to - _rl_last_v_pos) > 0)
+    {
+      for (i = 0; i < delta; i++)
+	putc ('\n', rl_outstream);
+      tputs (term_cr, 1, _rl_output_character_function);
+      _rl_last_c_pos = 0;
+    }
+  else
+    {			/* delta < 0 */
+      if (term_up && *term_up)
+	for (i = 0; i < -delta; i++)
+	  tputs (term_up, 1, _rl_output_character_function);
+    }
+#endif /* !__GO32__ */
+  _rl_last_v_pos = to;		/* Now TO is here */
+}
+
+/* Physically print C on rl_outstream.  This is for functions which know
+   how to optimize the display.  Return the number of characters output. */
+int
+rl_show_char (c)
+     int c;
+{
+  int n = 1;
+  if (META_CHAR (c) && (_rl_output_meta_chars == 0))
+    {
+      fprintf (rl_outstream, "M-");
+      n += 2;
+      c = UNMETA (c);
+    }
+
+#if defined (DISPLAY_TABS)
+  if ((CTRL_CHAR (c) && c != '\t') || c == RUBOUT)
+#else
+  if (CTRL_CHAR (c) || c == RUBOUT)
+#endif /* !DISPLAY_TABS */
+    {
+      fprintf (rl_outstream, "C-");
+      n += 2;
+      c = CTRL_CHAR (c) ? UNCTRL (c) : '?';
+    }
+
+  putc (c, rl_outstream);
+  fflush (rl_outstream);
+  return n;
+}
+
+int
+rl_character_len (c, pos)
+     register int c, pos;
+{
+  unsigned char uc;
+
+  uc = (unsigned char)c;
+
+  if (META_CHAR (uc))
+    return ((_rl_output_meta_chars == 0) ? 4 : 1);
+
+  if (uc == '\t')
+    {
+#if defined (DISPLAY_TABS)
+      return (((pos | 7) + 1) - pos);
+#else
+      return (2);
+#endif /* !DISPLAY_TABS */
+    }
+
+  if (CTRL_CHAR (c) || c == RUBOUT)
+    return (2);
+
+  return ((isprint (uc)) ? 1 : 2);
+}
+
+/* How to print things in the "echo-area".  The prompt is treated as a
+   mini-modeline. */
+
+#if defined (USE_VARARGS)
+int
+#if defined (PREFER_STDARG)
+rl_message (const char *format, ...)
+#else
+rl_message (va_alist)
+     va_dcl
+#endif
+{
+  va_list args;
+#if defined (PREFER_VARARGS)
+  char *format;
+#endif
+
+#if defined (PREFER_STDARG)
+  va_start (args, format);
+#else
+  va_start (args);
+  format = va_arg (args, char *);
+#endif
+
+  vsprintf (msg_buf, format, args);
+  va_end (args);
+
+  rl_display_prompt = msg_buf;
+  (*rl_redisplay_function) ();
+  return 0;
+}
+#else /* !USE_VARARGS */
+int
+rl_message (format, arg1, arg2)
+     char *format;
+{
+  sprintf (msg_buf, format, arg1, arg2);
+  rl_display_prompt = msg_buf;
+  (*rl_redisplay_function) ();
+  return 0;
+}
+#endif /* !USE_VARARGS */
+
+/* How to clear things from the "echo-area". */
+int
+rl_clear_message ()
+{
+  rl_display_prompt = rl_prompt;
+  (*rl_redisplay_function) ();
+  return 0;
+}
+
+int
+rl_reset_line_state ()
+{
+  rl_on_new_line ();
+
+  rl_display_prompt = rl_prompt ? rl_prompt : "";
+  forced_display = 1;
+  return 0;
+}
+
+static char *saved_local_prompt;
+static char *saved_local_prefix;
+static int saved_last_invisible;
+static int saved_visible_length;
+
+void
+_rl_save_prompt ()
+{
+  saved_local_prompt = local_prompt;
+  saved_local_prefix = local_prompt_prefix;
+  saved_last_invisible = last_invisible;
+  saved_visible_length = visible_length;
+
+  local_prompt = local_prompt_prefix = (char *)0;
+  last_invisible = visible_length = 0;
+}
+
+void
+_rl_restore_prompt ()
+{
+  if (local_prompt)
+    free (local_prompt);
+  if (local_prompt_prefix)
+    free (local_prompt_prefix);
+
+  local_prompt = saved_local_prompt;
+  local_prompt_prefix = saved_local_prefix;
+  last_invisible = saved_last_invisible;
+  visible_length = saved_visible_length;
+}
+
+char *
+_rl_make_prompt_for_search (pchar)
+     int pchar;
+{
+  int len;
+  char *pmt;
+
+  _rl_save_prompt ();
+
+  if (saved_local_prompt == 0)
+    {
+      len = (rl_prompt && *rl_prompt) ? strlen (rl_prompt) : 0;
+      pmt = xmalloc (len + 2);
+      if (len)
+        strcpy (pmt, rl_prompt);
+      pmt[len] = pchar;
+      pmt[len+1] = '\0';
+    }
+  else
+    {
+      len = *saved_local_prompt ? strlen (saved_local_prompt) : 0;
+      pmt = xmalloc (len + 2);
+      if (len)
+        strcpy (pmt, saved_local_prompt);
+      pmt[len] = pchar;
+      pmt[len+1] = '\0';
+      local_prompt = savestring (pmt);
+      last_invisible = saved_last_invisible;
+      visible_length = saved_visible_length + 1;
+    }
+  return pmt;
+}
+
+/* Quick redisplay hack when erasing characters at the end of the line. */
+void
+_rl_erase_at_end_of_line (l)
+     int l;
+{
+  register int i;
+
+  _rl_backspace (l);
+  for (i = 0; i < l; i++)
+    putc (' ', rl_outstream);
+  _rl_backspace (l);
+  for (i = 0; i < l; i++)
+    visible_line[--_rl_last_c_pos] = '\0';
+  rl_display_fixed++;
+}
+
+/* Clear to the end of the line.  COUNT is the minimum
+   number of character spaces to clear, */
+void
+_rl_clear_to_eol (count)
+     int count;
+{
+#if !defined (__GO32__)
+  if (term_clreol)
+    tputs (term_clreol, 1, _rl_output_character_function);
+  else if (count)
+#endif /* !__GO32__ */
+    space_to_eol (count);
+}
+
+/* Clear to the end of the line using spaces.  COUNT is the minimum
+   number of character spaces to clear, */
+static void
+space_to_eol (count)
+     int count;
+{
+  register int i;
+
+  for (i = 0; i < count; i++)
+   putc (' ', rl_outstream);
+
+  _rl_last_c_pos += count;
+}
+
+void
+_rl_clear_screen ()
+{
+#if !defined (__GO32__)
+  if (term_clrpag)
+    tputs (term_clrpag, 1, _rl_output_character_function);
+  else
+#endif /* !__GO32__ */
+    crlf ();
+}
+
+/* Insert COUNT characters from STRING to the output stream. */
+static void
+insert_some_chars (string, count)
+     char *string;
+     int count;
+{
+#if defined (__GO32__)
+  int row, col, width;
+  char *row_start;
+
+  ScreenGetCursor (&row, &col);
+  width = ScreenCols ();
+  row_start = ScreenPrimary + (row * width);
+
+  memcpy (row_start + col + count, row_start + col, width - col - count);
+
+  /* Place the text on the screen. */
+  _rl_output_some_chars (string, count);
+#else /* !_GO32 */
+
+  /* If IC is defined, then we do not have to "enter" insert mode. */
+  if (term_IC)
+    {
+      char *buffer;
+      buffer = tgoto (term_IC, 0, count);
+      tputs (buffer, 1, _rl_output_character_function);
+      _rl_output_some_chars (string, count);
+    }
+  else
+    {
+      register int i;
+
+      /* If we have to turn on insert-mode, then do so. */
+      if (term_im && *term_im)
+	tputs (term_im, 1, _rl_output_character_function);
+
+      /* If there is a special command for inserting characters, then
+	 use that first to open up the space. */
+      if (term_ic && *term_ic)
+	{
+	  for (i = count; i--; )
+	    tputs (term_ic, 1, _rl_output_character_function);
+	}
+
+      /* Print the text. */
+      _rl_output_some_chars (string, count);
+
+      /* If there is a string to turn off insert mode, we had best use
+	 it now. */
+      if (term_ei && *term_ei)
+	tputs (term_ei, 1, _rl_output_character_function);
+    }
+#endif /* !__GO32__ */
+}
+
+/* Delete COUNT characters from the display line. */
+static void
+delete_chars (count)
+     int count;
+{
+#if defined (__GO32__)
+  int row, col, width;
+  char *row_start;
+
+  ScreenGetCursor (&row, &col);
+  width = ScreenCols ();
+  row_start = ScreenPrimary + (row * width);
+
+  memcpy (row_start + col, row_start + col + count, width - col - count);
+  memset (row_start + width - count, 0, count * 2);
+#else /* !_GO32 */
+
+  if (count > screenwidth)	/* XXX */
+    return;
+
+  if (term_DC && *term_DC)
+    {
+      char *buffer;
+      buffer = tgoto (term_DC, count, count);
+      tputs (buffer, count, _rl_output_character_function);
+    }
+  else
+    {
+      if (term_dc && *term_dc)
+	while (count--)
+	  tputs (term_dc, 1, _rl_output_character_function);
+    }
+#endif /* !__GO32__ */
+}
+
+void
+_rl_update_final ()
+{
+  int full_lines;
+
+  full_lines = 0;
+  /* If the cursor is the only thing on an otherwise-blank last line,
+     compensate so we don't print an extra CRLF. */
+  if (_rl_vis_botlin && _rl_last_c_pos == 0 &&
+	visible_line[vis_lbreaks[_rl_vis_botlin]] == 0)
+    {
+      _rl_vis_botlin--;
+      full_lines = 1;
+    }
+  _rl_move_vert (_rl_vis_botlin);
+  /* If we've wrapped lines, remove the final xterm line-wrap flag. */
+  if (full_lines && _rl_term_autowrap && (VIS_LLEN(_rl_vis_botlin) == screenwidth))
+    {
+      char *last_line;
+      last_line = &visible_line[inv_lbreaks[_rl_vis_botlin]];
+      _rl_move_cursor_relative (screenwidth - 1, last_line);
+      _rl_clear_to_eol (0);
+      putc (last_line[screenwidth - 1], rl_outstream);
+    }
+  _rl_vis_botlin = 0;
+  crlf ();
+  fflush (rl_outstream);
+  rl_display_fixed++;
+}
+
+/* Move to the start of the current line. */
+static void
+cr ()
+{
+  if (term_cr)
+    {
+      tputs (term_cr, 1, _rl_output_character_function);
+      _rl_last_c_pos = 0;
+    }
+}
+
+/* Redisplay the current line after a SIGWINCH is received. */
+void
+_rl_redisplay_after_sigwinch ()
+{
+  char *t, *oldp, *oldl, *oldlprefix;
+
+  /* Clear the current line and put the cursor at column 0.  Make sure
+     the right thing happens if we have wrapped to a new screen line. */
+  if (term_cr)
+    {
+      tputs (term_cr, 1, _rl_output_character_function);
+      _rl_last_c_pos = 0;
+      if (term_clreol)
+	tputs (term_clreol, 1, _rl_output_character_function);
+      else
+	{
+	  space_to_eol (screenwidth);
+	  tputs (term_cr, 1, _rl_output_character_function);
+	}
+      if (_rl_last_v_pos > 0)
+	_rl_move_vert (0);
+    }
+  else
+    crlf ();
+
+  /* Redraw only the last line of a multi-line prompt. */
+  t = strrchr (rl_display_prompt, '\n');
+  if (t)
+    {
+      oldp = rl_display_prompt;
+      oldl = local_prompt;
+      oldlprefix = local_prompt_prefix;
+      rl_display_prompt = ++t;
+      local_prompt = local_prompt_prefix = (char *)NULL;
+      rl_forced_update_display ();
+      rl_display_prompt = oldp;
+      local_prompt = oldl;
+      local_prompt_prefix = oldlprefix;
+    }
+  else
+    rl_forced_update_display ();
+}
+
+void
+_rl_clean_up_for_exit ()
+{
+  if (readline_echoing_p)
+    {
+      _rl_move_vert (_rl_vis_botlin);
+      _rl_vis_botlin = 0;
+      fflush (rl_outstream);
+      rl_restart_output ();
+    }
+}
diff --git a/readline/doc/Makefile.in b/readline/doc/Makefile.in
new file mode 100644
index 00000000000..2eabb410833
--- /dev/null
+++ b/readline/doc/Makefile.in
@@ -0,0 +1,135 @@
+# This makefile for Readline library documentation is in -*- text -*- mode.
+# Emacs likes it that way.
+top_srcdir = @top_srcdir@
+srcdir = @srcdir@
+VPATH = .:@srcdir@
+
+prefix = @prefix@
+infodir = @infodir@
+
+mandir = @mandir@
+man3dir = $(mandir)/man3
+
+RM = rm -f
+
+TEXINPUTDIR = $(srcdir)
+
+MAKEINFO    = makeinfo
+TEXI2DVI    = $(srcdir)/texi2dvi
+TEXI2HTML   = $(srcdir)/texi2html
+QUIETPS     = #set this to -q to shut up dvips
+DVIPS       = dvips -D 300 $(QUIETPS) -o $@     # tricky
+
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+
+RLSRC = $(srcdir)/rlman.texinfo $(srcdir)/rluser.texinfo \
+	$(srcdir)/rltech.texinfo
+HISTSRC = $(srcdir)/hist.texinfo $(srcdir)/hsuser.texinfo \
+	  $(srcdir)/hstech.texinfo
+
+# This should be a program that converts troff to an ascii-readable format
+NROFF       = groff -Tascii
+
+# This should be a program that converts troff to postscript
+GROFF       = groff
+
+DVIOBJ = readline.dvi history.dvi
+INFOOBJ = readline.info history.info
+PSOBJ = readline.ps history.ps
+HTMLOBJ = readline.html history.html
+HTMLTOC = readline_toc.html history_toc.html
+TEXTOBJ = readline.0
+
+CREATED_DOCS = $(DVIOBJ) $(INFOOBJ) $(PSOBJ) $(HTMLOBJ) $(HTMLTOC) $(TEXTOBJ)
+
+.SUFFIXES:      .0 .3 .ps .txt .dvi
+
+.3.0:
+	$(RM) $@
+	-${NROFF} -man $< > $@
+
+all: info dvi html ps text
+nodvi: info html text
+
+readline.dvi: $(RLSRC)
+	TEXINPUTS=.:$(TEXINPUTDIR):$$TEXINPUTS $(TEXI2DVI) $(srcdir)/rlman.texinfo
+	mv rlman.dvi readline.dvi
+
+readline.info: $(RLSRC)
+	$(MAKEINFO) --no-split -I $(TEXINPUTDIR) -o $@ $(srcdir)/rlman.texinfo
+
+history.dvi: ${HISTSRC}
+	TEXINPUTS=.:$(TEXINPUTDIR):$$TEXINPUTS $(TEXI2DVI) $(srcdir)/hist.texinfo
+	mv hist.dvi history.dvi
+
+history.info: ${HISTSRC}
+	$(MAKEINFO) --no-split -I $(TEXINPUTDIR) -o $@ $(srcdir)/hist.texinfo
+
+readline.ps:	readline.dvi
+	$(RM) $@
+	$(DVIPS) readline.dvi
+
+history.ps:	history.dvi
+	$(RM) $@
+	$(DVIPS) history.dvi
+
+readline.html:	${RLSRC}
+	$(TEXI2HTML) -I $(TEXINPUTDIR) $(srcdir)/rlman.texinfo
+	sed -e 's:rlman.html:readline.html:' -e 's:rlman_toc.html:readline_toc.html:' rlman.html > readline.html
+	sed -e 's:rlman.html:readline.html:' -e 's:rlman_toc.html:readline_toc.html:' rlman_toc.html > readline_toc.html
+	$(RM) rlman.html rlman_toc.html
+
+history.html:	${HISTSRC}
+	$(TEXI2HTML) -I $(TEXINPUTDIR) $(srcdir)/hist.texinfo
+	sed -e 's:hist.html:history.html:' -e 's:hist_toc.html:history_toc.html:' hist.html > history.html
+	sed -e 's:hist.html:history.html:' -e 's:hist_toc.html:history_toc.html:' hist_toc.html > history_toc.html
+	$(RM) hist.html hist_toc.html
+
+info:	$(INFOOBJ)
+dvi:	$(DVIOBJ)
+ps:	$(PSOBJ)
+html:	$(HTMLOBJ)
+text:	$(TEXTOBJ)
+
+readline.0: readline.3
+
+clean:
+	$(RM) *.aux *.cp *.fn *.ky *.log *.pg *.toc *.tp *.vr *.cps *.pgs \
+	      *.fns *.kys *.tps *.vrs *.o core
+
+distclean: clean
+	$(RM) $(CREATED_DOCS)
+	$(RM) Makefile
+
+mostlyclean: clean
+
+maintainer-clean: clean
+	$(RM) $(CREATED_DOCS)
+	$(RM) Makefile
+
+installdirs:	$(top_srcdir)/support/mkdirs
+	-$(SHELL) $(top_srcdir)/support/mkdirs $(infodir) $(man3dir)
+
+install:	installdirs info
+	if test -f readline.info; then \
+		${INSTALL_DATA} readline.info $(infodir)/readline.info; \
+	else \
+		${INSTALL_DATA} $(srcdir)/readline.info $(infodir)/readline.info; \
+	fi
+	if test -f history.info; then \
+		${INSTALL_DATA} history.info $(infodir)/history.info; \
+	else \
+		${INSTALL_DATA} $(srcdir)/history.info $(infodir)/history.info; \
+	fi
+	if $(SHELL) -c 'install-info --version' >/dev/null 2>&1; then \
+		install-info --dir-file=$(infodir)/dir $(infodir)/readline.info ; \
+		install-info --dir-file=$(infodir)/dir $(infodir)/history.info ; \
+	else true; fi
+	-${INSTALL_DATA} $(srcdir)/readline.3 $(man3dir)/readline.3
+
+uninstall:
+	$(RM) $(infodir)/readline.info
+	$(RM) $(infodir)/history.info
+	$(RM) $(man3dir)/readline.3
diff --git a/readline/doc/hist.texinfo b/readline/doc/hist.texinfo
new file mode 100644
index 00000000000..be8742f5e66
--- /dev/null
+++ b/readline/doc/hist.texinfo
@@ -0,0 +1,117 @@
+\input texinfo    @c -*-texinfo-*-
+@c %**start of header (This is for running Texinfo on a region.)
+@setfilename history.info
+@settitle GNU History Library
+@c %**end of header (This is for running Texinfo on a region.)
+
+@setchapternewpage odd
+
+@ignore
+last change: Thu Apr  2 14:38:22 EST 1998
+@end ignore
+
+@set EDITION 2.2
+@set VERSION 2.2
+@set UPDATED 2 April 1998
+@set UPDATE-MONTH April 1998
+
+@dircategory Libraries
+@direntry
+* History: (history).       The GNU history library API
+@end direntry
+
+@ifinfo
+This document describes the GNU History library, a programming tool that
+provides a consistent user interface for recalling lines of previously
+typed input.
+
+Copyright (C) 1988, 1991, 1993, 1995, 1996, 1998 Free Software Foundation, Inc.
+
+Permission is granted to make and distribute verbatim copies of
+this manual provided the copyright notice and this permission notice
+pare preserved on all copies.
+
+@ignore
+Permission is granted to process this file through TeX and print the
+results, provided the printed document carries copying permission
+notice identical to this one except for the removal of this paragraph
+(this paragraph not being relevant to the printed manual).
+@end ignore
+
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided that the entire
+resulting derived work is distributed under the terms of a permission
+notice identical to this one.
+
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for modified versions,
+except that this permission notice may be stated in a translation approved
+by the Foundation.
+@end ifinfo
+
+@titlepage
+@title GNU History Library
+@subtitle Edition @value{EDITION}, for @code{History Library} Version @value{VERSION}.
+@subtitle @value{UPDATE-MONTH}
+@author Brian Fox, Free Software Foundation
+@author Chet Ramey, Case Western Reserve University
+
+@page
+This document describes the GNU History library, a programming tool that
+provides a consistent user interface for recalling lines of previously
+typed input.
+
+Published by the Free Software Foundation @*
+675 Massachusetts Avenue, @*
+Cambridge, MA 02139 USA
+
+Permission is granted to make and distribute verbatim copies of
+this manual provided the copyright notice and this permission notice
+are preserved on all copies.
+
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided that the entire
+resulting derived work is distributed under the terms of a permission
+notice identical to this one.
+
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for modified versions,
+except that this permission notice may be stated in a translation approved
+by the Foundation.
+
+@vskip 0pt plus 1filll
+Copyright @copyright{} 1989, 1991 Free Software Foundation, Inc.
+@end titlepage
+
+@ifinfo
+@node Top
+@top GNU History Library
+
+This document describes the GNU History library, a programming tool that
+provides a consistent user interface for recalling lines of previously
+typed input.
+
+@menu
+* Using History Interactively::	  GNU History User's Manual.
+* Programming with GNU History::  GNU History Programmer's Manual.
+* Concept Index::		  Index of concepts described in this manual.
+* Function and Variable Index::	  Index of externally visible functions
+				  and variables.
+@end menu
+@end ifinfo
+
+@syncodeindex fn vr
+
+@include hsuser.texinfo
+@include hstech.texinfo
+
+@node Concept Index
+@appendix Concept Index
+@printindex cp
+
+@node Function and Variable Index
+@appendix Function and Variable Index
+@printindex vr
+
+@contents
+@bye
diff --git a/readline/doc/hstech.texinfo b/readline/doc/hstech.texinfo
new file mode 100644
index 00000000000..54100908407
--- /dev/null
+++ b/readline/doc/hstech.texinfo
@@ -0,0 +1,515 @@
+@ignore
+This file documents the user interface to the GNU History library.
+
+Copyright (C) 1988, 1991, 1994, 1996 Free Software Foundation, Inc.
+Authored by Brian Fox and Chet Ramey.
+
+Permission is granted to make and distribute verbatim copies of this manual
+provided the copyright notice and this permission notice are preserved on
+all copies.
+
+Permission is granted to process this file through Tex and print the
+results, provided the printed document carries copying permission notice
+identical to this one except for the removal of this paragraph (this
+paragraph not being relevant to the printed manual).
+
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided also that the
+GNU Copyright statement is available to the distributee, and provided that
+the entire resulting derived work is distributed under the terms of a
+permission notice identical to this one.
+
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for modified versions.
+@end ignore
+
+@node Programming with GNU History
+@chapter Programming with GNU History
+
+This chapter describes how to interface programs that you write
+with the GNU History Library.
+It should be considered a technical guide.
+For information on the interactive use of GNU History, @pxref{Using
+History Interactively}.
+
+@menu
+* Introduction to History::	What is the GNU History library for?
+* History Storage::		How information is stored.
+* History Functions::		Functions that you can use.
+* History Variables::		Variables that control behaviour.
+* History Programming Example::	Example of using the GNU History Library.
+@end menu
+
+@node Introduction to History
+@section Introduction to History
+
+Many programs read input from the user a line at a time.  The GNU History
+library is able to keep track of those lines, associate arbitrary data with
+each line, and utilize information from previous lines in composing new
+ones.
+
+The programmer using the History library has available functions
+for remembering lines on a history list, associating arbitrary data
+with a line, removing lines from the list, searching through the list
+for a line containing an arbitrary text string, and referencing any line
+in the list directly.  In addition, a history @dfn{expansion} function
+is available which provides for a consistent user interface across
+different programs.
+
+The user using programs written with the History library has the
+benefit of a consistent user interface with a set of well-known
+commands for manipulating the text of previous lines and using that text
+in new commands.  The basic history manipulation commands are similar to
+the history substitution provided by @code{csh}.
+
+If the programmer desires, he can use the Readline library, which
+includes some history manipulation by default, and has the added
+advantage of command line editing.
+
+@node History Storage
+@section History Storage
+
+The history list is an array of history entries.  A history entry is
+declared as follows:
+
+@example
+typedef struct _hist_entry @{
+  char *line;
+  char *data;
+@} HIST_ENTRY;
+@end example
+
+The history list itself might therefore be declared as
+
+@example
+HIST_ENTRY **the_history_list;
+@end example
+
+The state of the History library is encapsulated into a single structure:
+
+@example
+/* A structure used to pass the current state of the history stuff around. */
+typedef struct _hist_state @{
+  HIST_ENTRY **entries;         /* Pointer to the entries themselves. */
+  int offset;                   /* The location pointer within this array. */
+  int length;                   /* Number of elements within this array. */
+  int size;                     /* Number of slots allocated to this array. */
+  int flags;
+@} HISTORY_STATE;
+@end example
+
+If the flags member includes @code{HS_STIFLED}, the history has been
+stifled.
+
+@node History Functions
+@section History Functions
+
+This section describes the calling sequence for the various functions
+present in GNU History.
+
+@menu
+* Initializing History and State Management::	Functions to call when you
+						want to use history in a
+						program.
+* History List Management::		Functions used to manage the list
+					of history entries.
+* Information About the History List::	Functions returning information about
+					the history list.
+* Moving Around the History List::	Functions used to change the position
+					in the history list.
+* Searching the History List::		Functions to search the history list
+					for entries containing a string.
+* Managing the History File::		Functions that read and write a file
+					containing the history list.
+* History Expansion::			Functions to perform csh-like history
+					expansion.
+@end menu
+
+@node Initializing History and State Management
+@subsection Initializing History and State Management
+
+This section describes functions used to initialize and manage
+the state of the History library when you want to use the history
+functions in your program.
+
+@deftypefun void using_history ()
+Begin a session in which the history functions might be used.  This
+initializes the interactive variables.
+@end deftypefun
+
+@deftypefun {HISTORY_STATE *} history_get_history_state ()
+Return a structure describing the current state of the input history.
+@end deftypefun
+
+@deftypefun void history_set_history_state (HISTORY_STATE *state)
+Set the state of the history list according to @var{state}.
+@end deftypefun
+
+@node History List Management
+@subsection History List Management
+
+These functions manage individual entries on the history list, or set
+parameters managing the list itself.
+
+@deftypefun void add_history (char *string)
+Place @var{string} at the end of the history list.  The associated data
+field (if any) is set to @code{NULL}.
+@end deftypefun
+
+@deftypefun {HIST_ENTRY *} remove_history (int which)
+Remove history entry at offset @var{which} from the history.  The
+removed element is returned so you can free the line, data,
+and containing structure.
+@end deftypefun
+
+@deftypefun {HIST_ENTRY *} replace_history_entry (int which, char *line, char *data)
+Make the history entry at offset @var{which} have @var{line} and @var{data}.
+This returns the old entry so you can dispose of the data.  In the case
+of an invalid @var{which}, a @code{NULL} pointer is returned.
+@end deftypefun
+
+@deftypefun void clear_history ()
+Clear the history list by deleting all the entries.
+@end deftypefun
+
+@deftypefun void stifle_history (int max)
+Stifle the history list, remembering only the last @var{max} entries.
+@end deftypefun
+
+@deftypefun int unstifle_history ()
+Stop stifling the history.  This returns the previous amount the
+history was stifled.  The value is positive if the history was
+stifled, negative if it wasn't.
+@end deftypefun
+
+@deftypefun int history_is_stifled ()
+Returns non-zero if the history is stifled, zero if it is not.
+@end deftypefun
+
+@node Information About the History List
+@subsection Information About the History List
+
+These functions return information about the entire history list or
+individual list entries.
+
+@deftypefun {HIST_ENTRY **} history_list ()
+Return a @code{NULL} terminated array of @code{HIST_ENTRY} which is the
+current input history.  Element 0 of this list is the beginning of time.
+If there is no history, return @code{NULL}.
+@end deftypefun
+
+@deftypefun int where_history ()
+Returns the offset of the current history element.
+@end deftypefun
+
+@deftypefun {HIST_ENTRY *} current_history ()
+Return the history entry at the current position, as determined by
+@code{where_history ()}.  If there is no entry there, return a @code{NULL}
+pointer.
+@end deftypefun
+
+@deftypefun {HIST_ENTRY *} history_get (int offset)
+Return the history entry at position @var{offset}, starting from
+@code{history_base}.  If there is no entry there, or if @var{offset}
+is greater than the history length, return a @code{NULL} pointer.
+@end deftypefun
+
+@deftypefun int history_total_bytes ()
+Return the number of bytes that the primary history entries are using.
+This function returns the sum of the lengths of all the lines in the
+history.
+@end deftypefun
+
+@node Moving Around the History List
+@subsection Moving Around the History List
+
+These functions allow the current index into the history list to be
+set or changed.
+
+@deftypefun int history_set_pos (int pos)
+Set the position in the history list to @var{pos}, an absolute index
+into the list.
+@end deftypefun
+
+@deftypefun {HIST_ENTRY *} previous_history ()
+Back up the current history offset to the previous history entry, and
+return a pointer to that entry.  If there is no previous entry, return
+a @code{NULL} pointer.
+@end deftypefun
+
+@deftypefun {HIST_ENTRY *} next_history ()
+Move the current history offset forward to the next history entry, and
+return the a pointer to that entry.  If there is no next entry, return
+a @code{NULL} pointer.
+@end deftypefun
+
+@node Searching the History List
+@subsection Searching the History List
+@cindex History Searching
+
+These functions allow searching of the history list for entries containing
+a specific string.  Searching may be performed both forward and backward
+from the current history position.  The search may be @dfn{anchored},
+meaning that the string must match at the beginning of the history entry.
+@cindex anchored search
+
+@deftypefun int history_search (char *string, int direction)
+Search the history for @var{string}, starting at the current history
+offset.  If @var{direction} < 0, then the search is through previous entries,
+else through subsequent.  If @var{string} is found, then
+the current history index is set to that history entry, and the value
+returned is the offset in the line of the entry where
+@var{string} was found.  Otherwise, nothing is changed, and a -1 is
+returned.
+@end deftypefun
+
+@deftypefun int history_search_prefix (char *string, int direction)
+Search the history for @var{string}, starting at the current history
+offset.  The search is anchored: matching lines must begin with
+@var{string}.  If @var{direction} < 0, then the search is through previous
+entries, else through subsequent.  If @var{string} is found, then the
+current history index is set to that entry, and the return value is 0. 
+Otherwise, nothing is changed, and a -1 is returned. 
+@end deftypefun
+
+@deftypefun int history_search_pos (char *string, int direction, int pos)
+Search for @var{string} in the history list, starting at @var{pos}, an
+absolute index into the list.  If @var{direction} is negative, the search
+proceeds backward from @var{pos}, otherwise forward.  Returns the absolute
+index of the history element where @var{string} was found, or -1 otherwise.
+@end deftypefun
+
+@node Managing the History File
+@subsection Managing the History File
+
+The History library can read the history from and write it to a file.
+This section documents the functions for managing a history file.
+
+@deftypefun int read_history (char *filename)
+Add the contents of @var{filename} to the history list, a line at a
+time.  If @var{filename} is @code{NULL}, then read from
+@file{~/.history}.  Returns 0 if successful, or errno if not.
+@end deftypefun
+
+@deftypefun int read_history_range (char *filename, int from, int to)
+Read a range of lines from @var{filename}, adding them to the history list.
+Start reading at line @var{from} and end at @var{to}.  If
+@var{from} is zero, start at the beginning.  If @var{to} is less than
+@var{from}, then read until the end of the file.  If @var{filename} is
+@code{NULL}, then read from @file{~/.history}.  Returns 0 if successful,
+or @code{errno} if not.
+@end deftypefun
+
+@deftypefun int write_history (char *filename)
+Write the current history to @var{filename}, overwriting @var{filename}
+if necessary.  If @var{filename} is
+@code{NULL}, then write the history list to @file{~/.history}.  Values
+returned are as in @code{read_history ()}.
+@end deftypefun
+
+@deftypefun int append_history (int nelements, char *filename)
+Append the last @var{nelements} of the history list to @var{filename}.
+@end deftypefun
+
+@deftypefun int history_truncate_file (char *filename, int nlines)
+Truncate the history file @var{filename}, leaving only the last
+@var{nlines} lines.
+@end deftypefun
+
+@node History Expansion
+@subsection History Expansion
+
+These functions implement @code{csh}-like history expansion.
+
+@deftypefun int history_expand (char *string, char **output)
+Expand @var{string}, placing the result into @var{output}, a pointer
+to a string (@pxref{History Interaction}).  Returns:
+@table @code
+@item 0
+If no expansions took place (or, if the only change in
+the text was the de-slashifying of the history expansion
+character);
+@item 1
+if expansions did take place;
+@item -1
+if there was an error in expansion;
+@item 2
+if the returned line should only be displayed, but not executed,
+as with the @code{:p} modifier (@pxref{Modifiers}).
+@end table
+
+If an error ocurred in expansion, then @var{output} contains a descriptive
+error message.
+@end deftypefun
+
+@deftypefun {char *} history_arg_extract (int first, int last, char *string)
+Extract a string segment consisting of the @var{first} through @var{last}
+arguments present in @var{string}.  Arguments are broken up as in Bash.
+@end deftypefun
+
+@deftypefun {char *} get_history_event (char *string, int *cindex, int qchar)
+Returns the text of the history event beginning at @var{string} +
+@var{*cindex}.  @var{*cindex} is modified to point to after the event
+specifier.  At function entry, @var{cindex} points to the index into
+@var{string} where the history event specification begins.  @var{qchar}
+is a character that is allowed to end the event specification in addition
+to the ``normal'' terminating characters.
+@end deftypefun
+
+@deftypefun {char **} history_tokenize (char *string)
+Return an array of tokens parsed out of @var{string}, much as the
+shell might.  The tokens are split on white space and on the
+characters @code{()<>;&|$}, and shell quoting conventions are
+obeyed.
+@end deftypefun
+
+@node History Variables
+@section History Variables
+
+This section describes the externally visible variables exported by
+the GNU History Library.
+
+@deftypevar int history_base
+The logical offset of the first entry in the history list.
+@end deftypevar
+
+@deftypevar int history_length
+The number of entries currently stored in the history list.
+@end deftypevar
+
+@deftypevar int max_input_history
+The maximum number of history entries.  This must be changed using
+@code{stifle_history ()}.
+@end deftypevar
+
+@deftypevar char history_expansion_char
+The character that starts a history event.  The default is @samp{!}.
+@end deftypevar
+
+@deftypevar char history_subst_char
+The character that invokes word substitution if found at the start of
+a line.  The default is @samp{^}.
+@end deftypevar
+
+@deftypevar char history_comment_char
+During tokenization, if this character is seen as the first character
+of a word, then it and all subsequent characters up to a newline are
+ignored, suppressing history expansion for the remainder of the line.
+This is disabled by default.
+@end deftypevar
+
+@deftypevar {char *} history_no_expand_chars
+The list of characters which inhibit history expansion if found immediately
+following @var{history_expansion_char}.  The default is whitespace and
+@samp{=}.
+@end deftypevar
+
+@deftypevar {char *} history_search_delimiter_chars
+The list of additional characters which can delimit a history search
+string, in addition to whitespace, @samp{:} and @samp{?} in the case of
+a substring search.  The default is empty.
+@end deftypevar
+
+@deftypevar int history_quotes_inhibit_expansion
+If non-zero, single-quoted words are not scanned for the history expansion
+character.  The default value is 0.
+@end deftypevar
+
+@deftypevar {Function *} history_inhibit_expansion_function
+This should be set to the address of a function that takes two arguments:
+a @code{char *} (@var{string}) and an integer index into that string (@var{i}).
+It should return a non-zero value if the history expansion starting at
+@var{string[i]} should not be performed; zero if the expansion should
+be done.
+It is intended for use by applications like Bash that use the history
+expansion character for additional purposes.
+By default, this variable is set to NULL.
+@end deftypevar
+
+@node History Programming Example
+@section History Programming Example
+
+The following program demonstrates simple use of the GNU History Library.
+
+@smallexample
+main ()
+@{
+  char line[1024], *t;
+  int len, done = 0;
+
+  line[0] = 0;
+
+  using_history ();
+  while (!done)
+    @{
+      printf ("history$ ");
+      fflush (stdout);
+      t = fgets (line, sizeof (line) - 1, stdin);
+      if (t && *t)
+        @{
+          len = strlen (t);
+          if (t[len - 1] == '\n')
+            t[len - 1] = '\0';
+        @}
+
+      if (!t)
+        strcpy (line, "quit");
+
+      if (line[0])
+        @{
+          char *expansion;
+          int result;
+
+          result = history_expand (line, &expansion);
+          if (result)
+            fprintf (stderr, "%s\n", expansion);
+
+          if (result < 0 || result == 2)
+            @{
+              free (expansion);
+              continue;
+            @}
+
+          add_history (expansion);
+          strncpy (line, expansion, sizeof (line) - 1);
+          free (expansion);
+        @}
+
+      if (strcmp (line, "quit") == 0)
+        done = 1;
+      else if (strcmp (line, "save") == 0)
+        write_history ("history_file");
+      else if (strcmp (line, "read") == 0)
+        read_history ("history_file");
+      else if (strcmp (line, "list") == 0)
+        @{
+          register HIST_ENTRY **the_list;
+          register int i;
+
+          the_list = history_list ();
+          if (the_list)
+            for (i = 0; the_list[i]; i++)
+              printf ("%d: %s\n", i + history_base, the_list[i]->line);
+        @}
+      else if (strncmp (line, "delete", 6) == 0)
+        @{
+          int which;
+          if ((sscanf (line + 6, "%d", &which)) == 1)
+            @{
+              HIST_ENTRY *entry = remove_history (which);
+              if (!entry)
+                fprintf (stderr, "No such entry %d\n", which);
+              else
+                @{
+                  free (entry->line);
+                  free (entry);
+                @}
+            @}
+          else
+            @{
+              fprintf (stderr, "non-numeric arg given to `delete'\n");
+            @}
+        @}
+    @}
+@}
+@end smallexample
diff --git a/readline/doc/hsuser.texinfo b/readline/doc/hsuser.texinfo
new file mode 100644
index 00000000000..7c4582d2ace
--- /dev/null
+++ b/readline/doc/hsuser.texinfo
@@ -0,0 +1,398 @@
+@ignore
+This file documents the user interface to the GNU History library.
+
+Copyright (C) 1988, 1991, 1996 Free Software Foundation, Inc.
+Authored by Brian Fox and Chet Ramey.
+
+Permission is granted to make and distribute verbatim copies of this manual
+provided the copyright notice and this permission notice are preserved on
+all copies.
+
+Permission is granted to process this file through Tex and print the
+results, provided the printed document carries copying permission notice
+identical to this one except for the removal of this paragraph (this
+paragraph not being relevant to the printed manual).
+
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided also that the
+GNU Copyright statement is available to the distributee, and provided that
+the entire resulting derived work is distributed under the terms of a
+permission notice identical to this one.
+
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for modified versions.
+@end ignore
+
+@node Using History Interactively
+@chapter Using History Interactively
+
+@ifset BashFeatures
+This chapter describes how to use the GNU History Library interactively,
+from a user's standpoint.  It should be considered a user's guide.  For
+information on using the GNU History Library in other programs,
+see the GNU Readline Library Manual.
+@end ifset
+@ifclear BashFeatures
+This chapter describes how to use the GNU History Library interactively,
+from a user's standpoint.  It should be considered a user's guide.  For
+information on using the GNU History Library in your own programs,
+@pxref{Programming with GNU History}.
+@end ifclear
+
+@ifset BashFeatures
+@menu
+* Bash History Facilities::	How Bash lets you manipulate your command
+				history.
+* Bash History Builtins::	The Bash builtin commands that manipulate
+				the command history.
+* History Interaction::		What it feels like using History as a user.
+@end menu
+@end ifset
+@ifclear BashFeatures
+@menu
+* History Interaction::		What it feels like using History as a user.
+@end menu
+@end ifclear
+
+@ifset BashFeatures
+@node Bash History Facilities
+@section Bash History Facilities
+@cindex command history
+@cindex history list
+
+When the @samp{-o history} option to the @code{set} builtin
+is enabled (@pxref{The Set Builtin}),
+the shell provides access to the @var{command history},
+the list of commands previously typed.  The text of the last
+@code{HISTSIZE}
+commands (default 500) is saved in a history list.  The shell
+stores each command in the history list prior to parameter and
+variable expansion
+but after history expansion is performed, subject to the
+values of the shell variables
+@code{HISTIGNORE} and @code{HISTCONTROL}.
+When the shell starts up, the history is initialized from the
+file named by the @code{HISTFILE} variable (default @file{~/.bash_history}).
+@code{HISTFILE} is truncated, if necessary, to contain no more than
+the number of lines specified by the value of the @code{HISTFILESIZE}
+variable.  When an interactive shell exits, the last
+@code{HISTSIZE} lines are copied from the history list to @code{HISTFILE}.
+If the @code{histappend} shell option is set (@pxref{Bash Builtins}),
+the lines are appended to the history file,
+otherwise the history file is overwritten.
+If @code{HISTFILE}
+is unset, or if the history file is unwritable, the history is
+not saved.  After saving the history, the history file is truncated
+to contain no more than @code{$HISTFILESIZE}
+lines.  If @code{HISTFILESIZE} is not set, no truncation is performed.
+
+The builtin command @code{fc} may be used to list or edit and re-execute
+a portion of the history list.
+The @code{history} builtin can be used to display or modify the history
+list and manipulate the history file.
+When using the command-line editing, search commands
+are available in each editing mode that provide access to the
+history list.
+
+The shell allows control over which commands are saved on the history
+list.  The @code{HISTCONTROL} and @code{HISTIGNORE}
+variables may be set to cause the shell to save only a subset of the
+commands entered.
+The @code{cmdhist}
+shell option, if enabled, causes the shell to attempt to save each
+line of a multi-line command in the same history entry, adding
+semicolons where necessary to preserve syntactic correctness.
+The @code{lithist}
+shell option causes the shell to save the command with embedded newlines
+instead of semicolons.
+@xref{Bash Builtins}, for a description of @code{shopt}.
+
+@node Bash History Builtins
+@section Bash History Builtins
+@cindex history builtins
+
+Bash provides two builtin commands that allow you to manipulate the
+history list and history file.
+
+@table @code
+
+@item fc
+@comment btindex fc
+@example
+@code{fc [-e @var{ename}] [-nlr] [@var{first}] [@var{last}]}
+@code{fc -s [@var{pat}=@var{rep}] [@var{command}]}
+@end example
+
+Fix Command.  In the first form, a range of commands from @var{first} to
+@var{last} is selected from the history list.  Both @var{first} and
+@var{last} may be specified as a string (to locate the most recent
+command beginning with that string) or as a number (an index into the
+history list, where a negative number is used as an offset from the
+current command number).  If @var{last} is not specified it is set to
+@var{first}.  If @var{first} is not specified it is set to the previous
+command for editing and @minus{}16 for listing.  If the @samp{-l} flag is
+given, the commands are listed on standard output.  The @samp{-n} flag
+suppresses the command numbers when listing.  The @samp{-r} flag
+reverses the order of the listing.  Otherwise, the editor given by
+@var{ename} is invoked on a file containing those commands.  If
+@var{ename} is not given, the value of the following variable expansion
+is used: @code{$@{FCEDIT:-$@{EDITOR:-vi@}@}}.  This says to use the
+value of the @code{FCEDIT} variable if set, or the value of the
+@code{EDITOR} variable if that is set, or @code{vi} if neither is set.
+When editing is complete, the edited commands are echoed and executed.
+
+In the second form, @var{command} is re-executed after each instance
+of @var{pat} in the selected command is replaced by @var{rep}.
+
+A useful alias to use with the @code{fc} command is @code{r='fc -s'}, so
+that typing @samp{r cc} runs the last command beginning with @code{cc}
+and typing @samp{r} re-executes the last command (@pxref{Aliases}).
+
+@item history
+@comment btindex history
+@example
+history [-c] [@var{n}]
+history [-anrw] [@var{filename}]
+history -ps @var{arg}
+@end example
+
+Display the history list with line numbers.  Lines prefixed with
+with a @samp{*} have been modified.  An argument of @var{n} says
+to list only the last @var{n} lines.  Options, if supplied, have
+the following meanings:
+
+@table @code
+@item -w
+Write out the current history to the history file.
+
+@item -r
+Read the current history file and append its contents to
+the history list.
+
+@item -a
+Append the new
+history lines (history lines entered since the beginning of the
+current Bash session) to the history file.
+
+@item -n
+Append the history lines not already read from the history file
+to the current history list.  These are lines appended to the history
+file since the beginning of the current Bash session.
+
+@item -c
+Clear the history list.  This may be combined
+with the other options to replace the history list completely.
+
+@item -s
+The @var{arg}s are added to the end of
+the history list as a single entry.
+
+@item -p
+Perform history substitution on the @var{arg}s and display the result
+on the standard output, without storing the results in the history list.
+@end table
+
+When the @samp{-w}, @samp{-r}, @samp{-a}, or @samp{-n} option is
+used, if @var{filename}
+is given, then it is used as the history file.  If not, then
+the value of the @code{HISTFILE} variable is used.
+
+@end table
+@end ifset
+
+@node History Interaction
+@section History Expansion
+@cindex history expansion
+
+The History library provides a history expansion feature that is similar
+to the history expansion provided by @code{csh}.  This section
+describes the syntax used to manipulate the history information.
+
+History expansions introduce words from the history list into
+the input stream, making it easy to repeat commands, insert the
+arguments to a previous command into the current input line, or
+fix errors in previous commands quickly.
+
+History expansion takes place in two parts.  The first is to determine
+which line from the history list should be used during substitution.
+The second is to select portions of that line for inclusion into the
+current one.  The line selected from the history is called the
+@dfn{event}, and the portions of that line that are acted upon are
+called @dfn{words}.  Various @dfn{modifiers} are available to manipulate
+the selected words.  The line is broken into words in the same fashion
+that Bash does, so that several words
+surrounded by quotes are considered one word.
+History expansions are introduced by the appearance of the
+history expansion character, which is @samp{!} by default.
+@ifset BashFeatures
+Only @samp{\} and @samp{'} may be used to escape the history expansion
+character.
+@end ifset
+
+@ifset BashFeatures
+Several shell options settable with the @code{shopt}
+builtin (@pxref{Bash Builtins}) may be used to tailor
+the behavior of history expansion.  If the
+@code{histverify} shell option is enabled, and Readline
+is being used, history substitutions are not immediately passed to
+the shell parser.
+Instead, the expanded line is reloaded into the Readline
+editing buffer for further modification.
+If Readline is being used, and the @code{histreedit}
+shell option is enabled, a failed history expansion will be
+reloaded into the Readline editing buffer for correction.
+The @samp{-p} option to the @code{history} builtin command
+may be used to see what a history expansion will do before using it.
+The @samp{-s} option to the @code{history} builtin may be used to
+add commands to the end of the history list without actually executing
+them, so that they are available for subsequent recall.
+This is most useful in conjunction with Readline.
+
+The shell allows control of the various characters used by the
+history expansion mechanism with the @code{histchars} variable.
+@end ifset
+
+@menu
+* Event Designators::	How to specify which history line to use.
+* Word Designators::	Specifying which words are of interest.
+* Modifiers::		Modifying the results of substitution.
+@end menu
+
+@node Event Designators
+@subsection Event Designators
+@cindex event designators
+
+An event designator is a reference to a command line entry in the
+history list.
+@cindex history events
+
+@table @asis
+
+@item @code{!}
+Start a history substitution, except when followed by a space, tab,
+the end of the line, @samp{=} or @samp{(}.
+
+@item @code{!@var{n}}
+Refer to command line @var{n}.
+
+@item @code{!-@var{n}}
+Refer to the command @var{n} lines back.
+
+@item @code{!!}
+Refer to the previous command.  This is a synonym for @samp{!-1}.
+
+@item @code{!@var{string}}
+Refer to the most recent command starting with @var{string}.
+
+@item @code{!?@var{string}[?]}
+Refer to the most recent command containing @var{string}.  The trailing
+@samp{?} may be omitted if the @var{string} is followed immediately by
+a newline.
+
+@item @code{^@var{string1}^@var{string2}^}
+Quick Substitution.  Repeat the last command, replacing @var{string1}
+with @var{string2}.  Equivalent to
+@code{!!:s/@var{string1}/@var{string2}/}.
+
+@item @code{!#}
+The entire command line typed so far.
+
+@end table
+
+@node Word Designators
+@subsection Word Designators
+
+Word designators are used to select desired words from the event.
+A @samp{:} separates the event specification from the word designator.  It
+may be omitted if the word designator begins with a @samp{^}, @samp{$},
+@samp{*}, @samp{-}, or @samp{%}.  Words are numbered from the beginning
+of the line, with the first word being denoted by 0 (zero).  Words are
+inserted into the current line separated by single spaces.
+
+@table @code
+
+@item 0 (zero)
+The @code{0}th word.  For many applications, this is the command word.
+
+@item @var{n}
+The @var{n}th word.
+
+@item ^
+The first argument; that is, word 1.
+
+@item $
+The last argument.
+
+@item %
+The word matched by the most recent @samp{?@var{string}?} search.
+
+@item @var{x}-@var{y}
+A range of words; @samp{-@var{y}} abbreviates @samp{0-@var{y}}.
+
+@item *
+All of the words, except the @code{0}th.  This is a synonym for @samp{1-$}.
+It is not an error to use @samp{*} if there is just one word in the event;
+the empty string is returned in that case.
+
+@item @var{x}*
+Abbreviates @samp{@var{x}-$}
+
+@item @var{x}-
+Abbreviates @samp{@var{x}-$} like @samp{@var{x}*}, but omits the last word.
+
+@end table
+
+If a word designator is supplied without an event specification, the
+previous command is used as the event.
+
+@node Modifiers
+@subsection Modifiers
+
+After the optional word designator, you can add a sequence of one or more
+of the following modifiers, each preceded by a @samp{:}.
+
+@table @code
+
+@item h
+Remove a trailing pathname component, leaving only the head.
+
+@item t
+Remove all leading  pathname  components, leaving the tail.
+
+@item r
+Remove a trailing suffix of the form @samp{.@var{suffix}}, leaving
+the basename.
+
+@item e
+Remove all but the trailing suffix.
+
+@item p
+Print the new command but do not execute it.
+
+@ifset BashFeatures
+@item q
+Quote the substituted words, escaping further substitutions.
+
+@item x
+Quote the substituted words as with @samp{q},
+but break into words at spaces, tabs, and newlines.
+@end ifset
+
+@item s/@var{old}/@var{new}/
+Substitute @var{new} for the first occurrence of @var{old} in the
+event line.  Any delimiter may be used in place of @samp{/}.
+The delimiter may be quoted in @var{old} and @var{new}
+with a single backslash.  If @samp{&} appears in @var{new},
+it is replaced by @var{old}.  A single backslash will quote
+the @samp{&}.  The final delimiter is optional if it is the last
+character on the input line.
+
+@item &
+Repeat the previous substitution.
+
+@item g
+Cause changes to be applied over the entire event line.  Used in
+conjunction with @samp{s}, as in @code{gs/@var{old}/@var{new}/},
+or with @samp{&}.
+
+@end table
diff --git a/readline/doc/readline.3 b/readline/doc/readline.3
new file mode 100644
index 00000000000..bb9f7590258
--- /dev/null
+++ b/readline/doc/readline.3
@@ -0,0 +1,1181 @@
+.\"
+.\" MAN PAGE COMMENTS to
+.\"
+.\"	Chet Ramey
+.\"	Information Network Services
+.\"	Case Western Reserve University
+.\"	chet@ins.CWRU.Edu
+.\"
+.\"	Last Change: Thu Feb 19 10:26:47 EST 1998
+.\"
+.TH READLINE 3 "1998 Feb 19" GNU
+.\"
+.\" File Name macro.  This used to be `.PN', for Path Name,
+.\" but Sun doesn't seem to like that very much.
+.\"
+.de FN
+\fI\|\\$1\|\fP
+..
+.SH NAME
+readline \- get a line from a user with editing
+.SH SYNOPSIS
+.LP
+.nf
+.ft B
+#include <readline.h>
+#include <history.h>
+.ft
+.fi
+.LP
+.nf
+.ft B
+char *readline (prompt)
+char *prompt;
+.ft
+.fi
+.SH COPYRIGHT
+.if n Readline is Copyright (C) 1989, 1991, 1993, 1995, 1996 by the Free Software Foundation, Inc.
+.if t Readline is Copyright \(co 1989, 1991, 1993, 1995, 1996 by the Free Software Foundation, Inc.
+.SH DESCRIPTION
+.LP
+.B readline
+will read a line from the terminal
+and return it, using
+.B prompt
+as a prompt.  If 
+.B prompt
+is null, no prompt is issued.  The line returned is allocated with
+.IR malloc (3),
+so the caller must free it when finished.  The line returned
+has the final newline removed, so only the text of the line
+remains.
+.LP
+.B readline
+offers editing capabilities while the user is entering the
+line.
+By default, the line editing commands
+are similar to those of emacs.
+A vi\-style line editing interface is also available.
+.SH RETURN VALUE
+.LP
+.B readline
+returns the text of the line read.  A blank line
+returns the empty string.  If
+.B EOF
+is encountered while reading a line, and the line is empty,
+.B NULL
+is returned.  If an
+.B EOF
+is read with a non\-empty line, it is
+treated as a newline.
+.SH NOTATION
+.LP
+An emacs-style notation is used to denote
+keystrokes.  Control keys are denoted by C\-\fIkey\fR, e.g., C\-n
+means Control\-N.  Similarly, 
+.I meta
+keys are denoted by M\-\fIkey\fR, so M\-x means Meta\-X.  (On keyboards
+without a 
+.I meta
+key, M\-\fIx\fP means ESC \fIx\fP, i.e., press the Escape key
+then the
+.I x
+key.  This makes ESC the \fImeta prefix\fP.
+The combination M\-C\-\fIx\fP means ESC\-Control\-\fIx\fP,
+or press the Escape key
+then hold the Control key while pressing the
+.I x
+key.)
+.PP
+Readline commands may be given numeric
+.IR arguments ,
+which normally act as a repeat count.  Sometimes, however, it is the
+sign of the argument that is significant.  Passing a negative argument
+to a command that acts in the forward direction (e.g., \fBkill\-line\fP)
+causes that command to act in a backward direction.  Commands whose
+behavior with arguments deviates from this are noted.
+.PP
+When a command is described as \fIkilling\fP text, the text
+deleted is saved for possible future retrieval
+(\fIyanking\fP).  The killed text is saved in a
+\fIkill ring\fP.  Consecutive kills cause the text to be
+accumulated into one unit, which can be yanked all at once. 
+Commands which do not kill text separate the chunks of text
+on the kill ring.
+.SH INITIALIZATION FILE
+.LP
+Readline is customized by putting commands in an initialization
+file (the \fIinputrc\fP file).
+The name of this file is taken from the value of the
+.B INPUTRC
+environment variable.  If that variable is unset, the default is
+.IR ~/.inputrc .
+When a program which uses the readline library starts up, the
+init file is read, and the key bindings and variables are set.
+There are only a few basic constructs allowed in the
+readline init file.  Blank lines are ignored.
+Lines beginning with a \fB#\fP are comments.
+Lines beginning with a \fB$\fP indicate conditional constructs.
+Other lines denote key bindings and variable settings.
+Each program using this library may add its own commands
+and bindings.
+.PP
+For example, placing
+.RS
+.PP
+M\-Control\-u: universal\-argument
+.RE
+or
+.RS
+C\-Meta\-u: universal\-argument
+.RE
+into the 
+.I inputrc
+would make M\-C\-u execute the readline command
+.IR universal\-argument .
+.PP
+The following symbolic character names are recognized while
+processing key bindings:
+.IR RUBOUT ,
+.IR DEL ,
+.IR ESC ,
+.IR LFD ,
+.IR NEWLINE ,
+.IR RET ,
+.IR RETURN ,
+.IR SPC ,
+.IR SPACE ,
+and
+.IR TAB .
+In addition to command names, readline allows keys to be bound
+to a string that is inserted when the key is pressed (a \fImacro\fP).
+.PP
+.SS Key Bindings
+.PP
+The syntax for controlling key bindings in the
+.I inputrc
+file is simple.  All that is required is the name of the
+command or the text of a macro and a key sequence to which
+it should be bound. The name may be specified in one of two ways:
+as a symbolic key name, possibly with \fIMeta\-\fP or \fIControl\-\fP
+prefixes, or as a key sequence.
+When using the form \fBkeyname\fP:\^\fIfunction-name\fP or \fImacro\fP,
+.I keyname
+is the name of a key spelled out in English.  For example:
+.sp
+.RS
+Control\-u: universal\-argument
+.br
+Meta\-Rubout: backward\-kill\-word
+.br
+Control\-o: ">&output"
+.RE
+.LP
+In the above example,
+.I C\-u
+is bound to the function
+.BR universal\-argument ,
+.I M-DEL
+is bound to the function
+.BR backward\-kill\-word ,
+and
+.I C\-o
+is bound to run the macro
+expressed on the right hand side (that is, to insert the text
+.I >&output
+into the line).
+.PP
+In the second form, \fB"keyseq"\fP:\^\fIfunction\-name\fP or \fImacro\fP,
+.B keyseq
+differs from
+.B keyname
+above in that strings denoting
+an entire key sequence may be specified by placing the sequence
+within double quotes.  Some GNU Emacs style key escapes can be
+used, as in the following example.
+.sp
+.RS
+"\eC\-u": universal\-argument
+.br
+"\eC\-x\eC\-r": re\-read\-init\-file
+.br
+"\ee[11~": "Function Key 1"
+.RE
+.PP
+In this example,
+.I C-u
+is again bound to the function
+.BR universal\-argument .
+.I "C-x C-r"
+is bound to the function
+.BR re\-read\-init\-file ,
+and 
+.I "ESC [ 1 1 ~"
+is bound to insert the text
+.BR "Function Key 1" .
+The full set of GNU Emacs style escape sequences is
+.RS
+.PD 0
+.TP
+.B \eC\-
+control prefix
+.TP
+.B \eM\-
+meta prefix
+.TP
+.B \ee
+an escape character
+.TP
+.B \e\e
+backslash
+.TP
+.B \e"
+literal "
+.TP
+.B \e'
+literal '
+.RE
+.PD
+.PP
+In addition to the GNU Emacs style escape sequences, a second
+set of backslash escapes is available:
+.RS
+.PD 0
+.TP
+.B \ea
+alert (bell)
+.TP
+.B \eb
+backspace
+.TP
+.B \ed
+delete
+.TP
+.B \ef
+form feed
+.TP
+.B \en
+newline
+.TP
+.B \er
+carriage return
+.TP
+.B \et
+horizontal tab
+.TP
+.B \ev
+vertical tab
+.TP
+.B \e\fInnn\fP
+the character whose ASCII code is the octal value \fInnn\fP
+(one to three digits)
+.TP
+.B \ex\fInnn\fP
+the character whose ASCII code is the hexadecimal value \fInnn\fP
+(one to three digits)
+.RE
+.PD
+.PP
+When entering the text of a macro, single or double quotes should
+be used to indicate a macro definition.  Unquoted text
+is assumed to be a function name.
+In the macro body, the backslash escapes described above are expanded.
+Backslash will quote any other character in the macro text,
+including " and '.
+.PP
+.B Bash
+allows the current readline key bindings to be displayed or modified
+with the
+.B bind
+builtin command.  The editing mode may be switched during interactive
+use by using the
+.B \-o
+option to the
+.B set
+builtin command.  Other programs using this library provide
+similar mechanisms.  The
+.I inputrc
+file may be edited and re-read if a program does not provide
+any other means to incorporate new bindings.
+.SS Variables
+.PP
+Readline has variables that can be used to further customize its
+behavior.  A variable may be set in the
+.I inputrc
+file with a statement of the form
+.RS
+.PP
+\fBset\fP \fIvariable\-name\fP \fIvalue\fP
+.RE
+.PP
+Except where noted, readline variables can take the values
+.B On
+or
+.BR Off .
+The variables and their default values are:
+.PP
+.PD 0
+.TP
+.B bell\-style (audible)
+Controls what happens when readline wants to ring the terminal bell.
+If set to \fBnone\fP, readline never rings the bell.  If set to
+\fBvisible\fP, readline uses a visible bell if one is available.
+If set to \fBaudible\fP, readline attempts to ring the terminal's bell.
+.TP
+.B comment\-begin (``#'')
+The string that is inserted in \fBvi\fP mode when the
+.B insert\-comment
+command is executed.
+This command is bound to
+.B M\-#
+in emacs mode and to
+.B #
+in vi command mode.
+.TP 
+.B completion\-ignore\-case (Off)
+If set to \fBOn\fP, readline performs filename matching and completion
+in a case\-insensitive fashion.
+.TP
+.B completion\-query\-items (100)
+This determines when the user is queried about viewing
+the number of possible completions
+generated by the \fBpossible\-completions\fP command.
+It may be set to any integer value greater than or equal to
+zero.  If the number of possible completions is greater than
+or equal to the value of this variable, the user is asked whether
+or not he wishes to view them; otherwise they are simply listed
+on the terminal.
+.TP
+.B convert\-meta (On)
+If set to \fBOn\fP, readline will convert characters with the
+eighth bit set to an ASCII key sequence
+by stripping the eighth bit and prepending an
+escape character (in effect, using escape as the \fImeta prefix\fP).
+.TP
+.B disable\-completion (Off)
+If set to \fBOn\fP, readline will inhibit word completion.  Completion 
+characters will be inserted into the line as if they had been
+mapped to \fBself-insert\fP.
+.TP
+.B editing\-mode (emacs)
+Controls whether readline begins with a set of key bindings similar
+to \fIemacs\fP or \fIvi\fP.
+.B editing\-mode
+can be set to either
+.B emacs
+or
+.BR vi .
+.TP
+.B enable\-keypad (Off)
+When set to \fBOn\fP, readline will try to enable the application
+keypad when it is called.  Some systems need this to enable the
+arrow keys.
+.TP
+.B expand\-tilde (Off)
+If set to \fBon\fP, tilde expansion is performed when readline
+attempts word completion.
+.TP
+.B horizontal\-scroll\-mode (Off)
+When set to \fBOn\fP, makes readline use a single line for display,
+scrolling the input horizontally on a single screen line when it
+becomes longer than the screen width rather than wrapping to a new line.
+.TP
+.B keymap (emacs)
+Set the current readline keymap.  The set of legal keymap names is
+\fIemacs, emacs-standard, emacs-meta, emacs-ctlx, vi, vi-move,
+vi-command\fP, and
+.IR vi-insert .
+\fIvi\fP is equivalent to \fIvi-command\fP; \fIemacs\fP is
+equivalent to \fIemacs-standard\fP.  The default value is
+.IR emacs ;
+the value of
+.B editing\-mode
+also affects the default keymap.
+.TP
+.B mark\-directories (On)
+If set to \fBOn\fP, complete<d directory names have a slash
+appended.
+.TP
+.B mark\-modified\-lines (Off)
+If set to \fBOn\fP, history lines that have been modified are displayed
+with a preceding asterisk (\fB*\fP).
+.TP
+.B meta\-flag (Off)
+If set to \fBOn\fP, readline will enable eight-bit input (that is,
+it will not strip the high bit from the characters it reads),
+regardless of what the terminal claims it can support.
+.TP
+.B output\-meta (Off)
+If set to \fBOn\fP, readline will display characters with the
+eighth bit set directly rather than as a meta-prefixed escape
+sequence.
+.TP
+.B print\-completions\-horizontally (Off)
+If set to \fBOn\fP, readline will display completions with matches
+sorted horizontally in alphabetical order, rather than down the screen.
+.TP
+.B show\-all\-if\-ambiguous (Off)
+This alters the default behavior of the completion functions.  If
+set to
+.BR on ,
+words which have more than one possible completion cause the
+matches to be listed immediately instead of ringing the bell.
+.TP
+.B visible\-stats (Off)
+If set to \fBOn\fP, a character denoting a file's type as reported  
+by \fBstat\fP(2) is appended to the filename when listing possible
+completions.
+.PD
+.SS Conditional Constructs
+.PP
+Readline implements a facility similar in spirit to the conditional
+compilation features of the C preprocessor which allows key
+bindings and variable settings to be performed as the result
+of tests.  There are four parser directives used.
+.IP \fB$if\fP
+The 
+.B $if
+construct allows bindings to be made based on the
+editing mode, the terminal being used, or the application using
+readline.  The text of the test extends to the end of the line;
+no characters are required to isolate it.
+.RS
+.IP \fBmode\fP
+The \fBmode=\fP form of the \fB$if\fP directive is used to test
+whether readline is in emacs or vi mode.
+This may be used in conjunction
+with the \fBset keymap\fP command, for instance, to set bindings in
+the \fIemacs-standard\fP and \fIemacs-ctlx\fP keymaps only if
+readline is starting out in emacs mode.
+.IP \fBterm\fP
+The \fBterm=\fP form may be used to include terminal-specific
+key bindings, perhaps to bind the key sequences output by the
+terminal's function keys.  The word on the right side of the
+.B =
+is tested against the full name of the terminal and the portion
+of the terminal name before the first \fB\-\fP.  This allows
+.I sun
+to match both
+.I sun
+and
+.IR sun\-cmd ,
+for instance.
+.IP \fBapplication\fP
+The \fBapplication\fP construct is used to include
+application-specific settings.  Each program using the readline
+library sets the \fIapplication name\fP, and an initialization
+file can test for a particular value.
+This could be used to bind key sequences to functions useful for
+a specific program.  For instance, the following command adds a
+key sequence that quotes the current or previous word in Bash:
+.sp 1
+.RS
+.nf
+\fB$if\fP bash
+# Quote the current or previous word
+"\eC-xq": "\eeb\e"\eef\e""
+\fB$endif\fP
+.fi
+.RE
+.RE
+.IP \fB$endif\fP
+This command, as seen in the previous example, terminates an
+\fB$if\fP command.
+.IP \fB$else\fP
+Commands in this branch of the \fB$if\fP directive are executed if
+the test fails.
+.IP \fB$include\fP
+This directive takes a single filename as an argument and reads commands
+and bindings from that file.  For example, the following directive
+would read \fI/etc/inputrc\fP:
+.sp 1
+.RS
+.nf
+\fB$include\fP \^ \fI/etc/inputrc\fP
+.fi 
+.RE
+.SH SEARCHING
+.PP
+Readline provides commands for searching through the command history
+for lines containing a specified string.
+There are two search modes:
+.I incremental
+and
+.IR non-incremental .
+.PP
+Incremental searches begin before the user has finished typing the
+search string.
+As each character of the search string is typed, readline displays
+the next entry from the history matching the string typed so far.
+An incremental search requires only as many characters as needed to
+find the desired history entry.
+The Escape character is used to terminate an incremental search.
+Control-J will also terminate the search.
+Control-G will abort an incremental search and restore the original
+line.
+When the search is terminated, the history entry containing the
+search string becomes the current line.
+To find other matching entries in the history list, type Control-S or
+Control-R as appropriate.
+This will search backward or forward in the history for the next
+line matching the search string typed so far.
+Any other key sequence bound to a readline command will terminate
+the search and execute that command.
+For instance, a \fInewline\fP will terminate the search and accept
+the line, thereby executing the command from the history list.
+.PP
+Non-incremental searches read the entire search string before starting
+to search for matching history lines.  The search string may be
+typed by the user or be part of the contents of the current line.
+.SH EDITING COMMANDS
+.PP
+The following is a list of the names of the commands and the default
+key sequences to which they are bound.
+Command names without an accompanying key sequence are unbound by default.
+.SS Commands for Moving
+.PP
+.PD 0
+.TP
+.B beginning\-of\-line (C\-a)
+Move to the start of the current line.
+.TP
+.B end\-of\-line (C\-e)
+Move to the end of the line.
+.TP
+.B forward\-char (C\-f)
+Move forward a character.
+.TP
+.B backward\-char (C\-b)
+Move back a character.
+.TP
+.B forward\-word (M\-f)
+Move forward to the end of the next word.  Words are composed of
+alphanumeric characters (letters and digits).
+.TP
+.B backward\-word (M\-b)
+Move back to the start of this, or the previous, word.  Words are
+composed of alphanumeric characters (letters and digits).
+.TP
+.B clear\-screen (C\-l)
+Clear the screen leaving the current line at the top of the screen.
+With an argument, refresh the current line without clearing the
+screen.
+.TP
+.B redraw\-current\-line
+Refresh the current line.
+.PD
+.SS Commands for Manipulating the History
+.PP
+.PD 0
+.TP
+.B accept\-line (Newline, Return)
+Accept the line regardless of where the cursor is.  If this line is
+non-empty, add it to the history list. If the line is a modified
+history line, then restore the history line to its original state.
+.TP
+.B previous\-history (C\-p)
+Fetch the previous command from the history list, moving back in
+the list.
+.TP
+.B next\-history (C\-n)
+Fetch the next command from the history list, moving forward in the
+list.
+.TP
+.B beginning\-of\-history (M\-<)
+Move to the first line in the history.
+.TP
+.B end\-of\-history (M\->)
+Move to the end of the input history, i.e., the line currently being
+entered.
+.TP
+.B reverse\-search\-history (C\-r)
+Search backward starting at the current line and moving `up' through
+the history as necessary.  This is an incremental search.
+.TP
+.B forward\-search\-history (C\-s)
+Search forward starting at the current line and moving `down' through
+the history as necessary.  This is an incremental search.
+.TP
+.B non\-incremental\-reverse\-search\-history (M\-p)
+Search backward through the history starting at the current line
+using a non-incremental search for a string supplied by the user.
+.TP
+.B non\-incremental\-forward\-search\-history (M\-n)
+Search forward through the history using a non-incremental search
+for a string supplied by the user.
+.TP
+.B history\-search\-forward
+Search forward through the history for the string of characters
+between the start of the current line and the current cursor
+position (the \fIpoint\fP).
+This is a non-incremental search.
+.TP
+.B history\-search\-backward
+Search backward through the history for the string of characters
+between the start of the current line and the point.
+This is a non-incremental search.
+.TP
+.B yank\-nth\-arg (M\-C\-y)
+Insert the first argument to the previous command (usually
+the second word on the previous line) at point (the current
+cursor position).  With an argument
+.IR n ,
+insert the \fIn\fPth word from the previous command (the words
+in the previous command begin with word 0).  A negative argument
+inserts the \fIn\fPth word from the end of the previous command.
+.TP
+.B
+yank\-last\-arg (M\-.\^, M\-_\^)
+Insert the last argument to the previous command (the last word of
+the previous history entry).  With an argument,
+behave exactly like \fByank\-nth\-arg\fP.
+Successive calls to \fByank\-last\-arg\fP move back through the history
+list, inserting the last argument of each line in turn.
+.PD
+.SS Commands for Changing Text
+.PP
+.PD 0
+.TP
+.B delete\-char (C\-d)
+Delete the character under the cursor.  If point is at the
+beginning of the line, there are no characters in the line, and
+the last character typed was not bound to \fBBdelete\-char\fP, then return
+.SM
+.BR EOF .
+.TP
+.B backward\-delete\-char (Rubout)
+Delete the character behind the cursor.  When given a numeric argument,
+save the deleted text on the kill ring.
+.TP
+.B quoted\-insert (C\-q, C\-v)
+Add the next character that you type to the line verbatim.  This is
+how to insert characters like \fBC\-q\fP, for example.
+.TP
+.B tab\-insert (M-TAB)
+Insert a tab character.
+.TP
+.B self\-insert (a,\ b,\ A,\ 1,\ !,\ ...)
+Insert the character typed.
+.TP
+.B transpose\-chars (C\-t)
+Drag the character before point forward over the character at point.
+Point moves forward as well.  If point is at the end of the line, then
+transpose the two characters before point.  Negative arguments don't work.
+.TP
+.B transpose\-words (M\-t)
+Drag the word behind the cursor past the word in front of the cursor
+moving the cursor over that word as well.
+.TP
+.B upcase\-word (M\-u)
+Uppercase the current (or following) word.  With a negative argument,
+uppercase the previous word, but do not move point.
+.TP
+.B downcase\-word (M\-l)
+Lowercase the current (or following) word.  With a negative argument,
+lowercase the previous word, but do not move point.
+.TP
+.B capitalize\-word (M\-c)
+Capitalize the current (or following) word.  With a negative argument,
+capitalize the previous word, but do not move point.
+.PD
+.SS Killing and Yanking
+.PP
+.PD 0
+.TP
+.B kill\-line (C\-k)
+Kill the text from the current cursor position to the end of the line.
+.TP
+.B backward\-kill\-line (C\-x Rubout)
+Kill backward to the beginning of the line.
+.TP
+.B unix\-line\-discard (C\-u)
+Kill backward from point to the beginning of the line.
+The killed text is saved on the kill-ring.
+.\" There is no real difference between this and backward-kill-line
+.TP
+.B kill\-whole\-line
+Kill all characters on the current line, no matter where the
+cursor is.
+.TP
+.B kill\-word  (M\-d)
+Kill from the cursor to the end of the current word, or if between
+words, to the end of the next word.  Word boundaries are the same as
+those used by \fBforward\-word\fP.
+.TP
+.B backward\-kill\-word (M\-Rubout)
+Kill the word behind the cursor.  Word boundaries are the same as
+those used by \fBbackward\-word\fP.
+.TP
+.B unix\-word\-rubout (C\-w)
+Kill the word behind the cursor, using white space as a word boundary.
+The word boundaries are different from
+.BR backward\-kill\-word .
+.TP
+.B delete\-horizontal\-space (M\-\e)
+Delete all spaces and tabs around point.
+.TP
+.B kill\-region
+Kill the text between the point and \fImark\fP (saved cursor position).
+This text is referred to as the \fIregion\fP.
+.TP
+.B copy\-region\-as\-kill
+Copy the text in the region to the kill buffer.
+.TP
+.B copy\-backward\-word
+Copy the word before point to the kill buffer.
+The word boundaries are the same as \fBbackward\-word\fP.
+.TP
+.B copy\-forward\-word
+Copy the word following point to the kill buffer.
+The word boundaries are the same as \fBforward\-word\fP.
+.TP
+.B yank (C\-y)
+Yank the top of the kill ring into the buffer at the cursor.
+.TP
+.B yank\-pop (M\-y)
+Rotate the kill ring, and yank the new top.  Only works following
+.B yank
+or
+.BR yank\-pop .
+.PD
+.SS Numeric Arguments
+.PP
+.PD 0
+.TP
+.B digit\-argument (M\-0, M\-1, ..., M\-\-)
+Add this digit to the argument already accumulating, or start a new
+argument.  M\-\- starts a negative argument.
+.TP
+.B universal\-argument
+This is another way to specify an argument.
+If this command is followed by one or more digits, optionally with a
+leading minus sign, those digits define the argument.
+If the command is followed by digits, executing
+.B universal\-argument
+again ends the numeric argument, but is otherwise ignored.
+As a special case, if this command is immediately followed by a
+character that is neither a digit or minus sign, the argument count
+for the next command is multiplied by four.
+The argument count is initially one, so executing this function the
+first time makes the argument count four, a second time makes the
+argument count sixteen, and so on.
+.PD
+.SS Completing
+.PP
+.PD 0
+.TP
+.B complete (TAB)
+Attempt to perform completion on the text before point.
+The actual completion performed is application-specific.
+.BR Bash ,
+for instance, attempts completion treating the text as a variable
+(if the text begins with \fB$\fP), username (if the text begins with
+\fB~\fP), hostname (if the text begins with \fB@\fP), or
+command (including aliases and functions) in turn.  If none
+of these produces a match, filename completion is attempted.
+.BR Gdb ,
+on the other hand,
+allows completion of program functions and variables, and
+only attempts filename completion under certain circumstances.
+.TP
+.B possible\-completions (M\-?)
+List the possible completions of the text before point.
+.TP
+.B insert\-completions (M\-*)
+Insert all completions of the text before point
+that would have been generated by
+\fBpossible\-completions\fP.
+.TP
+.B menu\-complete
+Similar to \fBcomplete\fP, but replaces the word to be completed
+with a single match from the list of possible completions.
+Repeated execution of \fBmenu\-complete\fP steps through the list
+of possible completions, inserting each match in turn.
+At the end of the list of completions, the bell is rung and the
+original text is restored.
+An argument of \fIn\fP moves \fIn\fP positions forward in the list
+of matches; a negative argument may be used to move backward 
+through the list.
+This command is intended to be bound to \fBTAB\fP, but is unbound
+by default.
+.PD
+.SS Keyboard Macros
+.PP
+.PD 0
+.TP
+.B start\-kbd\-macro (C\-x (\^)
+Begin saving the characters typed into the current keyboard macro.
+.TP
+.B end\-kbd\-macro (C\-x )\^)
+Stop saving the characters typed into the current keyboard macro
+and store the definition.
+.TP
+.B call\-last\-kbd\-macro (C\-x e)
+Re-execute the last keyboard macro defined, by making the characters
+in the macro appear as if typed at the keyboard.
+.PD
+.SS Miscellaneous
+.PP
+.PD 0
+.TP
+.B re\-read\-init\-file (C\-x C\-r)
+Read in the contents of the \fIinputrc\fP file, and incorporate
+any bindings or variable assignments found there.
+.TP
+.B abort (C\-g)
+Abort the current editing command and
+ring the terminal's bell (subject to the setting of
+.BR bell\-style ).
+.TP
+.B do\-uppercase\-version (M\-a, M\-b, M\-\fIx\fP, ...)
+If the metafied character \fIx\fP is lowercase, run the command
+that is bound to the corresponding uppercase character.
+.TP
+.B prefix\-meta (ESC)
+Metafy the next character typed.
+.SM
+.B ESC
+.B f
+is equivalent to
+.BR Meta\-f .
+.TP
+.B undo (C\-_, C\-x C\-u)
+Incremental undo, separately remembered for each line.
+.TP
+.B revert\-line (M\-r)
+Undo all changes made to this line.  This is like executing the
+.B undo
+command enough times to return the line to its initial state.
+.TP
+.B tilde\-expand (M\-~)
+Perform tilde expansion on the current word.
+.TP
+.B set\-mark (C\-@, M-<space>)
+Set the mark to the current point.  If a
+numeric argument is supplied, the mark is set to that position.
+.TP
+.B exchange\-point\-and\-mark (C\-x C\-x)
+Swap the point with the mark.  The current cursor position is set to
+the saved position, and the old cursor position is saved as the mark.
+.TP
+.B character\-search (C\-])
+A character is read and point is moved to the next occurrence of that
+character.  A negative count searches for previous occurrences.
+.TP
+.B character\-search\-backward (M\-C\-])
+A character is read and point is moved to the previous occurrence of that
+character.  A negative count searches for subsequent occurrences.
+.TP
+.B insert\-comment (M\-#)
+The value of the readline
+.B comment\-begin
+variable is inserted at the beginning of the current line, and the line
+is accepted as if a newline had been typed.  This makes the current line
+a shell comment.
+.TP
+.B dump\-functions
+Print all of the functions and their key bindings to the
+readline output stream.  If a numeric argument is supplied,
+the output is formatted in such a way that it can be made part
+of an \fIinputrc\fP file.
+.TP
+.B dump\-variables
+Print all of the settable variables and their values to the
+readline output stream.  If a numeric argument is supplied,
+the output is formatted in such a way that it can be made part
+of an \fIinputrc\fP file.
+.TP
+.B dump\-macros
+Print all of the readline key sequences bound to macros and the
+strings they ouput.  If a numeric argument is supplied,
+the output is formatted in such a way that it can be made part
+of an \fIinputrc\fP file.
+.TP
+.B emacs\-editing\-mode (C\-e)
+When in
+.B vi
+editing mode, this causes a switch to
+.B emacs
+editing mode.
+.TP
+.B vi\-editing\-mode (M\-C\-j)
+When in
+.B emacs
+editing mode, this causes a switch to
+.B vi
+editing mode.
+.PD
+.SH DEFAULT KEY BINDINGS
+.LP
+The following is a list of the default emacs and vi bindings.
+Characters with the 8th bit set are written as M\-<character>, and
+are referred to as
+.I metafied
+characters.
+The printable ASCII characters not mentioned in the list of emacs
+standard bindings are bound to the
+.I self\-insert
+function, which just inserts the given character into the input line.
+In vi insertion mode, all characters not specifically mentioned are
+bound to
+.IR self\-insert .
+Characters assigned to signal generation by
+.IR stty (1)
+or the terminal driver, such as C-Z or C-C,
+retain that function.
+Upper and lower case
+.I metafied
+characters are bound to the same function in the emacs mode
+meta keymap.
+The remaining characters are unbound, which causes readline
+to ring the bell (subject to the setting of the
+.B bell\-style
+variable).
+.SS Emacs Mode
+.RS +.6i
+.nf
+.ta 2.5i
+.sp
+Emacs Standard bindings
+.sp
+"C-@"  set-mark
+"C-A"  beginning-of-line
+"C-B"  backward-char
+"C-D"  delete-char
+"C-E"  end-of-line
+"C-F"  forward-char
+"C-G"  abort
+"C-H"  backward-delete-char
+"C-I"  complete
+"C-J"  accept-line
+"C-K"  kill-line
+"C-L"  clear-screen
+"C-M"  accept-line
+"C-N"  next-history
+"C-P"  previous-history
+"C-Q"  quoted-insert
+"C-R"  reverse-search-history
+"C-S"  forward-search-history
+"C-T"  transpose-chars
+"C-U"  unix-line-discard
+"C-V"  quoted-insert
+"C-W"  unix-word-rubout
+"C-Y"  yank
+"C-]"  character-search
+"C-_"  undo
+"\^ " to "/"  self-insert
+"0"  to "9"  self-insert
+":"  to "~"  self-insert
+"C-?"  backward-delete-char
+.PP
+Emacs Meta bindings
+.sp
+"M-C-G"  abort
+"M-C-H"  backward-kill-word
+"M-C-I"  tab-insert
+"M-C-J"  vi-editing-mode
+"M-C-M"  vi-editing-mode
+"M-C-R"  revert-line
+"M-C-Y"  yank-nth-arg
+"M-C-["  complete
+"M-C-]"  character-search-backward
+"M-space"  set-mark
+"M-#"  insert-comment
+"M-&"  tilde-expand
+"M-*"  insert-completions
+"M--"  digit-argument
+"M-."  yank-last-arg
+"M-0"  digit-argument
+"M-1"  digit-argument
+"M-2"  digit-argument
+"M-3"  digit-argument
+"M-4"  digit-argument
+"M-5"  digit-argument
+"M-6"  digit-argument
+"M-7"  digit-argument
+"M-8"  digit-argument
+"M-9"  digit-argument
+"M-<"  beginning-of-history
+"M-="  possible-completions
+"M->"  end-of-history
+"M-?"  possible-completions
+"M-B"  backward-word
+"M-C"  capitalize-word
+"M-D"  kill-word
+"M-F"  forward-word
+"M-L"  downcase-word
+"M-N"  non-incremental-forward-search-history
+"M-P"  non-incremental-reverse-search-history
+"M-R"  revert-line
+"M-T"  transpose-words
+"M-U"  upcase-word
+"M-Y"  yank-pop
+"M-\e"  delete-horizontal-space
+"M-~"  tilde-expand
+"M-C-?"  backward-delete-word
+"M-_"  yank-last-arg
+.PP
+Emacs Control-X bindings
+.sp
+"C-XC-G"  abort
+"C-XC-R"  re-read-init-file
+"C-XC-U"  undo
+"C-XC-X"  exchange-point-and-mark
+"C-X("  start-kbd-macro
+"C-X)"  end-kbd-macro
+"C-XE"  call-last-kbd-macro
+"C-XC-?"  backward-kill-line
+.sp
+.RE
+.SS VI Mode bindings
+.RS +.6i
+.nf
+.ta 2.5i
+.sp
+.PP
+VI Insert Mode functions
+.sp
+"C-D"  vi-eof-maybe
+"C-H"  backward-delete-char
+"C-I"  complete
+"C-J"  accept-line
+"C-M"  accept-line
+"C-R"  reverse-search-history
+"C-S"  forward-search-history
+"C-T"  transpose-chars
+"C-U"  unix-line-discard
+"C-V"  quoted-insert
+"C-W"  unix-word-rubout
+"C-Y"  yank
+"C-["  vi-movement-mode
+"C-_"  undo
+"\^ " to "~"  self-insert
+"C-?"  backward-delete-char
+.PP
+VI Command Mode functions
+.sp
+"C-D"  vi-eof-maybe
+"C-E"  emacs-editing-mode
+"C-G"  abort
+"C-H"  backward-char
+"C-J"  accept-line
+"C-K"  kill-line
+"C-L"  clear-screen
+"C-M"  accept-line
+"C-N"  next-history
+"C-P"  previous-history
+"C-Q"  quoted-insert
+"C-R"  reverse-search-history
+"C-S"  forward-search-history
+"C-T"  transpose-chars
+"C-U"  unix-line-discard
+"C-V"  quoted-insert
+"C-W"  unix-word-rubout
+"C-Y"  yank
+"\^ "  forward-char
+"#"  insert-comment
+"$"  end-of-line
+"%"  vi-match
+"&"  vi-tilde-expand
+"*"  vi-complete
+"+"  next-history
+","  vi-char-search
+"-"  previous-history
+"."  vi-redo
+"/"  vi-search
+"0"  beginning-of-line
+"1" to "9"  vi-arg-digit
+";"  vi-char-search
+"="  vi-complete
+"?"  vi-search
+"A"  vi-append-eol
+"B"  vi-prev-word
+"C"  vi-change-to
+"D"  vi-delete-to
+"E"  vi-end-word
+"F"  vi-char-search
+"G"  vi-fetch-history
+"I"  vi-insert-beg
+"N"  vi-search-again
+"P"  vi-put
+"R"  vi-replace
+"S"  vi-subst
+"T"  vi-char-search
+"U"  revert-line
+"W"  vi-next-word
+"X"  backward-delete-char
+"Y"  vi-yank-to
+"\e"  vi-complete
+"^"  vi-first-print
+"_"  vi-yank-arg
+"`"  vi-goto-mark
+"a"  vi-append-mode
+"b"  vi-prev-word
+"c"  vi-change-to
+"d"  vi-delete-to
+"e"  vi-end-word
+"f"  vi-char-search
+"h"  backward-char
+"i"  vi-insertion-mode
+"j"  next-history
+"k"  prev-history
+"l"  forward-char
+"m"  vi-set-mark
+"n"  vi-search-again
+"p"  vi-put
+"r"  vi-change-char
+"s"  vi-subst
+"t"  vi-char-search
+"u"  undo
+"w"  vi-next-word
+"x"  vi-delete
+"y"  vi-yank-to
+"|"  vi-column
+"~"  vi-change-case
+.RE
+.SH "SEE ALSO"
+.PD 0
+.TP
+\fIThe Gnu Readline Library\fP, Brian Fox and Chet Ramey
+.TP
+\fIThe Gnu History Library\fP, Brian Fox and Chet Ramey
+.TP
+\fIbash\fP(1)
+.PD
+.SH FILES
+.PD 0
+.TP
+.FN ~/.inputrc
+Individual \fBreadline\fP initialization file
+.PD
+.SH AUTHORS
+Brian Fox, Free Software Foundation (primary author)
+.br
+bfox@ai.MIT.Edu
+.PP
+Chet Ramey, Case Western Reserve University
+.br
+chet@ins.CWRU.Edu
+.SH BUG REPORTS
+If you find a bug in
+.B readline,
+you should report it.  But first, you should
+make sure that it really is a bug, and that it appears in the latest
+version of the
+.B readline
+library that you have.
+.PP
+Once you have determined that a bug actually exists, mail a
+bug report to \fIbug\-readline\fP@\fIgnu.org\fP.
+If you have a fix, you are welcome to mail that
+as well!  Suggestions and `philosophical' bug reports may be mailed
+to \fPbug-readline\fP@\fIgnu.org\fP or posted to the Usenet
+newsgroup
+.BR gnu.bash.bug .
+.PP
+Comments and bug reports concerning
+this manual page should be directed to
+.IR chet@ins.CWRU.Edu .
+.SH BUGS
+.PP
+It's too big and too slow.
diff --git a/readline/doc/rlman.texinfo b/readline/doc/rlman.texinfo
new file mode 100644
index 00000000000..dd6478af5a2
--- /dev/null
+++ b/readline/doc/rlman.texinfo
@@ -0,0 +1,115 @@
+\input texinfo    @c -*-texinfo-*-
+@comment %**start of header (This is for running Texinfo on a region.)
+@setfilename readline.info
+@settitle GNU Readline Library
+@comment %**end of header (This is for running Texinfo on a region.)
+@synindex vr fn
+@setchapternewpage odd
+
+@ignore
+last change: Thu Apr  2 14:39:03 EST 1998
+@end ignore
+
+@set EDITION 2.2
+@set VERSION 2.2
+@set UPDATED 2 April 1998
+@set UPDATE-MONTH April 1998
+
+@dircategory Libraries
+@direntry
+* Readline: (readline).       The GNU readline library API
+@end direntry
+
+@ifinfo
+This document describes the GNU Readline Library, a utility which aids
+in the consistency of user interface across discrete programs that need
+to provide a command line interface.
+
+Copyright (C) 1988, 1991, 1993, 1996, 1998 Free Software Foundation, Inc.
+
+Permission is granted to make and distribute verbatim copies of
+this manual provided the copyright notice and this permission notice
+pare preserved on all copies.
+
+@ignore
+Permission is granted to process this file through TeX and print the
+results, provided the printed document carries copying permission
+notice identical to this one except for the removal of this paragraph
+(this paragraph not being relevant to the printed manual).
+@end ignore
+
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided that the entire
+resulting derived work is distributed under the terms of a permission
+notice identical to this one.
+
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for modified versions,
+except that this permission notice may be stated in a translation approved
+by the Foundation.
+@end ifinfo
+
+@titlepage  
+@title GNU Readline Library
+@subtitle Edition @value{EDITION}, for @code{Readline Library} Version @value{VERSION}.
+@subtitle @value{UPDATE-MONTH}
+@author Brian Fox, Free Software Foundation
+@author Chet Ramey, Case Western Reserve University
+
+@page
+This document describes the GNU Readline Library, a utility which aids
+in the consistency of user interface across discrete programs that need
+to provide a command line interface.
+
+Published by the Free Software Foundation @*
+675 Massachusetts Avenue, @*
+Cambridge, MA 02139 USA
+
+Permission is granted to make and distribute verbatim copies of
+this manual provided the copyright notice and this permission notice
+are preserved on all copies.
+
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided that the entire
+resulting derived work is distributed under the terms of a permission
+notice identical to this one.
+
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for modified versions,
+except that this permission notice may be stated in a translation approved
+by the Foundation.
+
+@vskip 0pt plus 1filll
+Copyright @copyright{} 1989, 1991 Free Software Foundation, Inc.
+@end titlepage
+
+@ifinfo
+@node Top
+@top GNU Readline Library
+
+This document describes the GNU Readline Library, a utility which aids
+in the consistency of user interface across discrete programs that need
+to provide a command line interface.
+
+@menu
+* Command Line Editing::	   GNU Readline User's Manual.
+* Programming with GNU Readline::  GNU Readline Programmer's Manual.
+* Concept Index::		   Index of concepts described in this manual.
+* Function and Variable Index::	   Index of externally visible functions
+				   and variables.
+@end menu
+@end ifinfo
+
+@include rluser.texinfo
+@include rltech.texinfo
+
+@node Concept Index
+@unnumbered Concept Index
+@printindex cp
+
+@node Function and Variable Index
+@unnumbered Function and Variable Index
+@printindex fn
+
+@contents
+@bye
diff --git a/readline/doc/rltech.texinfo b/readline/doc/rltech.texinfo
new file mode 100644
index 00000000000..bce508717ac
--- /dev/null
+++ b/readline/doc/rltech.texinfo
@@ -0,0 +1,1548 @@
+@comment %**start of header (This is for running Texinfo on a region.)
+@setfilename rltech.info
+@comment %**end of header (This is for running Texinfo on a region.)
+@setchapternewpage odd
+
+@ifinfo
+This document describes the GNU Readline Library, a utility for aiding
+in the consitency of user interface across discrete programs that need
+to provide a command line interface.
+
+Copyright (C) 1988, 1994, 1996 Free Software Foundation, Inc.
+
+Permission is granted to make and distribute verbatim copies of
+this manual provided the copyright notice and this permission notice
+pare preserved on all copies.
+
+@ignore
+Permission is granted to process this file through TeX and print the
+results, provided the printed document carries copying permission
+notice identical to this one except for the removal of this paragraph
+(this paragraph not being relevant to the printed manual).
+@end ignore
+
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided that the entire
+resulting derived work is distributed under the terms of a permission
+notice identical to this one.
+
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for modified versions,
+except that this permission notice may be stated in a translation approved
+by the Foundation.
+@end ifinfo
+
+@node Programming with GNU Readline
+@chapter Programming with GNU Readline
+
+This chapter describes the interface between the GNU Readline Library and
+other programs.  If you are a programmer, and you wish to include the
+features found in GNU Readline
+such as completion, line editing, and interactive history manipulation
+in your own programs, this section is for you.
+
+@menu
+* Basic Behavior::	Using the default behavior of Readline.
+* Custom Functions::	Adding your own functions to Readline.
+* Readline Variables::			Variables accessible to custom
+					functions.
+* Readline Convenience Functions::	Functions which Readline supplies to
+					aid in writing your own
+* Custom Completers::	Supplanting or supplementing Readline's
+			completion functions.
+@end menu
+
+@node Basic Behavior
+@section Basic Behavior
+
+Many programs provide a command line interface, such as @code{mail},
+@code{ftp}, and @code{sh}.  For such programs, the default behaviour of
+Readline is sufficient.  This section describes how to use Readline in
+the simplest way possible, perhaps to replace calls in your code to
+@code{gets()} or @code{fgets ()}.
+
+@findex readline
+@cindex readline, function
+The function @code{readline ()} prints a prompt and then reads and returns
+a single line of text from the user.  The line @code{readline}
+returns is allocated with @code{malloc ()}; you should @code{free ()}
+the line when you are done with it.  The declaration for @code{readline}
+in ANSI C is
+
+@example
+@code{char *readline (char *@var{prompt});}
+@end example
+
+@noindent
+So, one might say
+@example
+@code{char *line = readline ("Enter a line: ");}
+@end example
+@noindent
+in order to read a line of text from the user.
+The line returned has the final newline removed, so only the
+text remains.
+
+If @code{readline} encounters an @code{EOF} while reading the line, and the
+line is empty at that point, then @code{(char *)NULL} is returned.
+Otherwise, the line is ended just as if a newline had been typed.
+
+If you want the user to be able to get at the line later, (with
+@key{C-p} for example), you must call @code{add_history ()} to save the
+line away in a @dfn{history} list of such lines.
+
+@example
+@code{add_history (line)};
+@end example
+
+@noindent
+For full details on the GNU History Library, see the associated manual.
+
+It is preferable to avoid saving empty lines on the history list, since
+users rarely have a burning need to reuse a blank line.  Here is
+a function which usefully replaces the standard @code{gets ()} library
+function, and has the advantage of no static buffer to overflow:
+
+@example
+/* A static variable for holding the line. */
+static char *line_read = (char *)NULL;
+
+/* Read a string, and return a pointer to it.  Returns NULL on EOF. */
+char *
+rl_gets ()
+@{
+  /* If the buffer has already been allocated, return the memory
+     to the free pool. */
+  if (line_read)
+    @{
+      free (line_read);
+      line_read = (char *)NULL;
+    @}
+
+  /* Get a line from the user. */
+  line_read = readline ("");
+
+  /* If the line has any text in it, save it on the history. */
+  if (line_read && *line_read)
+    add_history (line_read);
+
+  return (line_read);
+@}
+@end example
+
+This function gives the user the default behaviour of @key{TAB}
+completion: completion on file names.  If you do not want Readline to
+complete on filenames, you can change the binding of the @key{TAB} key
+with @code{rl_bind_key ()}.
+
+@example
+@code{int rl_bind_key (int @var{key}, int (*@var{function})());}
+@end example
+
+@code{rl_bind_key ()} takes two arguments: @var{key} is the character that
+you want to bind, and @var{function} is the address of the function to
+call when @var{key} is pressed.  Binding @key{TAB} to @code{rl_insert ()}
+makes @key{TAB} insert itself.
+@code{rl_bind_key ()} returns non-zero if @var{key} is not a valid
+ASCII character code (between 0 and 255).
+
+Thus, to disable the default @key{TAB} behavior, the following suffices:
+@example
+@code{rl_bind_key ('\t', rl_insert);}
+@end example
+
+This code should be executed once at the start of your program; you
+might write a function called @code{initialize_readline ()} which
+performs this and other desired initializations, such as installing
+custom completers (@pxref{Custom Completers}).
+
+@node Custom Functions
+@section Custom Functions
+
+Readline provides many functions for manipulating the text of
+the line, but it isn't possible to anticipate the needs of all
+programs.  This section describes the various functions and variables
+defined within the Readline library which allow a user program to add
+customized functionality to Readline.
+
+@menu
+* The Function Type::	C declarations to make code readable.
+* Function Writing::	Variables and calling conventions.
+@end menu
+
+@node The Function Type
+@subsection The Function Type
+
+For readabilty, we declare a new type of object, called
+@dfn{Function}.  A @code{Function} is a C function which
+returns an @code{int}.  The type declaration for @code{Function} is:
+
+@noindent
+@code{typedef int Function ();}
+
+The reason for declaring this new type is to make it easier to write
+code describing pointers to C functions.  Let us say we had a variable
+called @var{func} which was a pointer to a function.  Instead of the
+classic C declaration
+
+@code{int (*)()func;}
+
+@noindent
+we may write
+
+@code{Function *func;}
+
+@noindent
+Similarly, there are
+
+@example
+typedef void VFunction ();
+typedef char *CPFunction (); @r{and}
+typedef char **CPPFunction ();
+@end example
+
+@noindent
+for functions returning no value, @code{pointer to char}, and
+@code{pointer to pointer to char}, respectively.
+
+@node Function Writing
+@subsection Writing a New Function
+
+In order to write new functions for Readline, you need to know the
+calling conventions for keyboard-invoked functions, and the names of the
+variables that describe the current state of the line read so far.
+
+The calling sequence for a command @code{foo} looks like
+
+@example
+@code{foo (int count, int key)}
+@end example
+
+@noindent
+where @var{count} is the numeric argument (or 1 if defaulted) and
+@var{key} is the key that invoked this function.
+
+It is completely up to the function as to what should be done with the
+numeric argument.  Some functions use it as a repeat count, some
+as a flag, and others to choose alternate behavior (refreshing the current
+line as opposed to refreshing the screen, for example).  Some choose to
+ignore it.  In general, if a
+function uses the numeric argument as a repeat count, it should be able
+to do something useful with both negative and positive arguments.
+At the very least, it should be aware that it can be passed a
+negative argument.
+
+@node Readline Variables
+@section Readline Variables
+
+These variables are available to function writers.
+
+@deftypevar {char *} rl_line_buffer
+This is the line gathered so far.  You are welcome to modify the
+contents of the line, but see @ref{Allowing Undoing}.
+@end deftypevar
+
+@deftypevar int rl_point
+The offset of the current cursor position in @code{rl_line_buffer}
+(the @emph{point}).
+@end deftypevar
+
+@deftypevar int rl_end
+The number of characters present in @code{rl_line_buffer}.  When
+@code{rl_point} is at the end of the line, @code{rl_point} and
+@code{rl_end} are equal.
+@end deftypevar
+
+@deftypevar int rl_mark
+The mark (saved position) in the current line.  If set, the mark
+and point define a @emph{region}.
+@end deftypevar
+
+@deftypevar int rl_done
+Setting this to a non-zero value causes Readline to return the current
+line immediately.
+@end deftypevar
+
+@deftypevar int rl_pending_input
+Setting this to a value makes it the next keystroke read.  This is a
+way to stuff a single character into the input stream.
+@end deftypevar
+
+@deftypevar {char *} rl_prompt
+The prompt Readline uses.  This is set from the argument to
+@code{readline ()}, and should not be assigned to directly.
+@end deftypevar
+
+@deftypevar {char *} rl_library_version
+The version number of this revision of the library.
+@end deftypevar
+
+@deftypevar {char *} rl_terminal_name
+The terminal type, used for initialization.
+@end deftypevar
+
+@deftypevar {char *} rl_readline_name
+This variable is set to a unique name by each application using Readline.
+The value allows conditional parsing of the inputrc file
+(@pxref{Conditional Init Constructs}).
+@end deftypevar
+
+@deftypevar {FILE *} rl_instream
+The stdio stream from which Readline reads input.
+@end deftypevar
+
+@deftypevar {FILE *} rl_outstream
+The stdio stream to which Readline performs output.
+@end deftypevar
+
+@deftypevar {Function *} rl_startup_hook
+If non-zero, this is the address of a function to call just
+before @code{readline} prints the first prompt.
+@end deftypevar
+
+@deftypevar {Function *} rl_event_hook
+If non-zero, this is the address of a function to call periodically
+when readline is waiting for terminal input.
+@end deftypevar
+
+@deftypevar {Function *} rl_getc_function
+If non-zero, @code{readline} will call indirectly through this pointer
+to get a character from the input stream.  By default, it is set to
+@code{rl_getc}, the default @code{readline} character input function
+(@pxref{Utility Functions}).
+@end deftypevar
+
+@deftypevar {VFunction *} rl_redisplay_function
+If non-zero, @code{readline} will call indirectly through this pointer
+to update the display with the current contents of the editing buffer.
+By default, it is set to @code{rl_redisplay}, the default @code{readline}
+redisplay function (@pxref{Redisplay}).
+@end deftypevar
+
+@deftypevar {Keymap} rl_executing_keymap
+This variable is set to the keymap (@pxref{Keymaps}) in which the
+currently executing readline function was found.
+@end deftypevar 
+
+@deftypevar {Keymap} rl_binding_keymap
+This variable is set to the keymap (@pxref{Keymaps}) in which the
+last key binding occurred.
+@end deftypevar 
+
+@node Readline Convenience Functions
+@section Readline Convenience Functions
+
+@menu
+* Function Naming::	How to give a function you write a name.
+* Keymaps::		Making keymaps.
+* Binding Keys::	Changing Keymaps.
+* Associating Function Names and Bindings::	Translate function names to
+						key sequences.
+* Allowing Undoing::	How to make your functions undoable.
+* Redisplay::		Functions to control line display.
+* Modifying Text::	Functions to modify @code{rl_line_buffer}.
+* Utility Functions::	Generally useful functions and hooks.
+* Alternate Interface::	Using Readline in a `callback' fashion.
+@end menu
+
+@node Function Naming
+@subsection Naming a Function
+
+The user can dynamically change the bindings of keys while using
+Readline.  This is done by representing the function with a descriptive
+name.  The user is able to type the descriptive name when referring to
+the function.  Thus, in an init file, one might find
+
+@example
+Meta-Rubout:	backward-kill-word
+@end example
+
+This binds the keystroke @key{Meta-Rubout} to the function
+@emph{descriptively} named @code{backward-kill-word}.  You, as the
+programmer, should bind the functions you write to descriptive names as
+well.  Readline provides a function for doing that:
+
+@deftypefun int rl_add_defun (char *name, Function *function, int key)
+Add @var{name} to the list of named functions.  Make @var{function} be
+the function that gets called.  If @var{key} is not -1, then bind it to
+@var{function} using @code{rl_bind_key ()}.
+@end deftypefun
+
+Using this function alone is sufficient for most applications.  It is
+the recommended way to add a few functions to the default functions that
+Readline has built in.  If you need to do something other
+than adding a function to Readline, you may need to use the
+underlying functions described below.
+
+@node Keymaps
+@subsection Selecting a Keymap
+
+Key bindings take place on a @dfn{keymap}.  The keymap is the
+association between the keys that the user types and the functions that
+get run.  You can make your own keymaps, copy existing keymaps, and tell
+Readline which keymap to use.
+
+@deftypefun Keymap rl_make_bare_keymap ()
+Returns a new, empty keymap.  The space for the keymap is allocated with
+@code{malloc ()}; you should @code{free ()} it when you are done.
+@end deftypefun
+
+@deftypefun Keymap rl_copy_keymap (Keymap map)
+Return a new keymap which is a copy of @var{map}.
+@end deftypefun
+
+@deftypefun Keymap rl_make_keymap ()
+Return a new keymap with the printing characters bound to rl_insert,
+the lowercase Meta characters bound to run their equivalents, and
+the Meta digits bound to produce numeric arguments.
+@end deftypefun
+
+@deftypefun void rl_discard_keymap (Keymap keymap)
+Free the storage associated with @var{keymap}.
+@end deftypefun
+
+Readline has several internal keymaps.  These functions allow you to
+change which keymap is active.
+
+@deftypefun Keymap rl_get_keymap ()
+Returns the currently active keymap.
+@end deftypefun
+
+@deftypefun void rl_set_keymap (Keymap keymap)
+Makes @var{keymap} the currently active keymap.
+@end deftypefun
+
+@deftypefun Keymap rl_get_keymap_by_name (char *name)
+Return the keymap matching @var{name}.  @var{name} is one which would
+be supplied in a @code{set keymap} inputrc line (@pxref{Readline Init File}).
+@end deftypefun
+
+@deftypefun {char *} rl_get_keymap_name (Keymap keymap)
+Return the name matching @var{keymap}.  @var{name} is one which would
+be supplied in a @code{set keymap} inputrc line (@pxref{Readline Init File}).
+@end deftypefun
+
+@node Binding Keys
+@subsection Binding Keys
+
+You associate keys with functions through the keymap.  Readline has
+several internal keymaps: @code{emacs_standard_keymap},
+@code{emacs_meta_keymap}, @code{emacs_ctlx_keymap},
+@code{vi_movement_keymap}, and @code{vi_insertion_keymap}.
+@code{emacs_standard_keymap} is the default, and the examples in
+this manual assume that.
+
+These functions manage key bindings.
+
+@deftypefun int rl_bind_key (int key, Function *function)
+Binds @var{key} to @var{function} in the currently active keymap.
+Returns non-zero in the case of an invalid @var{key}.
+@end deftypefun
+
+@deftypefun int rl_bind_key_in_map (int key, Function *function, Keymap map)
+Bind @var{key} to @var{function} in @var{map}.  Returns non-zero in the case
+of an invalid @var{key}.
+@end deftypefun
+
+@deftypefun int rl_unbind_key (int key)
+Bind @var{key} to the null function in the currently active keymap.
+Returns non-zero in case of error.
+@end deftypefun
+
+@deftypefun int rl_unbind_key_in_map (int key, Keymap map)
+Bind @var{key} to the null function in @var{map}.
+Returns non-zero in case of error.
+@end deftypefun
+
+@deftypefun int rl_unbind_function_in_map (Function *function, Keymap map)
+Unbind all keys that execute @var{function} in @var{map}.
+@end deftypefun
+
+@deftypefun int rl_unbind_command_in_map (char *command, Keymap map)
+Unbind all keys that are bound to @var{command} in @var{map}.
+@end deftypefun
+
+@deftypefun int rl_generic_bind (int type, char *keyseq, char *data, Keymap map)
+Bind the key sequence represented by the string @var{keyseq} to the arbitrary
+pointer @var{data}.  @var{type} says what kind of data is pointed to by
+@var{data}; this can be a function (@code{ISFUNC}), a macro
+(@code{ISMACR}), or a keymap (@code{ISKMAP}).  This makes new keymaps as
+necessary.  The initial keymap in which to do bindings is @var{map}.
+@end deftypefun
+
+@deftypefun int rl_parse_and_bind (char *line)
+Parse @var{line} as if it had been read from the @code{inputrc} file and
+perform any key bindings and variable assignments found
+(@pxref{Readline Init File}).
+@end deftypefun
+
+@deftypefun int rl_read_init_file (char *filename)
+Read keybindings and variable assignments from @var{filename}
+(@pxref{Readline Init File}).
+@end deftypefun
+
+@node Associating Function Names and Bindings
+@subsection Associating Function Names and Bindings
+
+These functions allow you to find out what keys invoke named functions
+and the functions invoked by a particular key sequence.
+
+@deftypefun {Function *} rl_named_function (char *name)
+Return the function with name @var{name}.
+@end deftypefun
+
+@deftypefun {Function *} rl_function_of_keyseq (char *keyseq, Keymap map, int *type)
+Return the function invoked by @var{keyseq} in keymap @var{map}.
+If @var{map} is NULL, the current keymap is used.  If @var{type} is
+not NULL, the type of the object is returned in it (one of @code{ISFUNC},
+@code{ISKMAP}, or @code{ISMACR}).
+@end deftypefun
+
+@deftypefun {char **} rl_invoking_keyseqs (Function *function)
+Return an array of strings representing the key sequences used to
+invoke @var{function} in the current keymap.
+@end deftypefun
+
+@deftypefun {char **} rl_invoking_keyseqs_in_map (Function *function, Keymap map)
+Return an array of strings representing the key sequences used to
+invoke @var{function} in the keymap @var{map}.
+@end deftypefun
+
+@deftypefun void rl_function_dumper (int readable)
+Print the readline function names and the key sequences currently
+bound to them to @code{rl_outstream}.  If @var{readable} is non-zero,
+the list is formatted in such a way that it can be made part of an
+@code{inputrc} file and re-read.
+@end deftypefun
+
+@deftypefun void rl_list_funmap_names ()
+Print the names of all bindable Readline functions to @code{rl_outstream}.
+@end deftypefun
+
+@node Allowing Undoing
+@subsection Allowing Undoing
+
+Supporting the undo command is a painless thing, and makes your
+functions much more useful.  It is certainly easy to try
+something if you know you can undo it.  I could use an undo function for
+the stock market.
+
+If your function simply inserts text once, or deletes text once, and
+uses @code{rl_insert_text ()} or @code{rl_delete_text ()} to do it, then
+undoing is already done for you automatically.
+
+If you do multiple insertions or multiple deletions, or any combination
+of these operations, you should group them together into one operation.
+This is done with @code{rl_begin_undo_group ()} and
+@code{rl_end_undo_group ()}.
+
+The types of events that can be undone are:
+
+@example
+enum undo_code @{ UNDO_DELETE, UNDO_INSERT, UNDO_BEGIN, UNDO_END @}; 
+@end example
+
+Notice that @code{UNDO_DELETE} means to insert some text, and
+@code{UNDO_INSERT} means to delete some text.  That is, the undo code
+tells undo what to undo, not how to undo it.  @code{UNDO_BEGIN} and
+@code{UNDO_END} are tags added by @code{rl_begin_undo_group ()} and
+@code{rl_end_undo_group ()}.
+
+@deftypefun int rl_begin_undo_group ()
+Begins saving undo information in a group construct.  The undo
+information usually comes from calls to @code{rl_insert_text ()} and
+@code{rl_delete_text ()}, but could be the result of calls to
+@code{rl_add_undo ()}.
+@end deftypefun
+
+@deftypefun int rl_end_undo_group ()
+Closes the current undo group started with @code{rl_begin_undo_group
+()}.  There should be one call to @code{rl_end_undo_group ()}
+for each call to @code{rl_begin_undo_group ()}.
+@end deftypefun
+
+@deftypefun void rl_add_undo (enum undo_code what, int start, int end, char *text)
+Remember how to undo an event (according to @var{what}).  The affected
+text runs from @var{start} to @var{end}, and encompasses @var{text}.
+@end deftypefun
+
+@deftypefun void free_undo_list ()
+Free the existing undo list.
+@end deftypefun
+
+@deftypefun int rl_do_undo ()
+Undo the first thing on the undo list.  Returns @code{0} if there was
+nothing to undo, non-zero if something was undone.
+@end deftypefun
+
+Finally, if you neither insert nor delete text, but directly modify the
+existing text (e.g., change its case), call @code{rl_modifying ()}
+once, just before you modify the text.  You must supply the indices of
+the text range that you are going to modify.
+
+@deftypefun int rl_modifying (int start, int end)
+Tell Readline to save the text between @var{start} and @var{end} as a
+single undo unit.  It is assumed that you will subsequently modify
+that text.
+@end deftypefun
+
+@node Redisplay
+@subsection Redisplay
+
+@deftypefun void rl_redisplay ()
+Change what's displayed on the screen to reflect the current contents
+of @code{rl_line_buffer}.
+@end deftypefun
+
+@deftypefun int rl_forced_update_display ()
+Force the line to be updated and redisplayed, whether or not
+Readline thinks the screen display is correct.
+@end deftypefun
+
+@deftypefun int rl_on_new_line ()
+Tell the update routines that we have moved onto a new (empty) line,
+usually after ouputting a newline.
+@end deftypefun
+
+@deftypefun int rl_reset_line_state ()
+Reset the display state to a clean state and redisplay the current line
+starting on a new line.
+@end deftypefun
+
+@deftypefun int rl_message (va_alist)
+The arguments are a string as would be supplied to @code{printf}.  The
+resulting string is displayed in the @dfn{echo area}.  The echo area
+is also used to display numeric arguments and search strings.
+@end deftypefun
+
+@deftypefun int rl_clear_message ()
+Clear the message in the echo area.
+@end deftypefun
+
+@node Modifying Text
+@subsection Modifying Text
+
+@deftypefun int rl_insert_text (char *text)
+Insert @var{text} into the line at the current cursor position.
+@end deftypefun
+
+@deftypefun int rl_delete_text (int start, int end)
+Delete the text between @var{start} and @var{end} in the current line.
+@end deftypefun
+
+@deftypefun {char *} rl_copy_text (int start, int end)
+Return a copy of the text between @var{start} and @var{end} in
+the current line.
+@end deftypefun
+
+@deftypefun int rl_kill_text (int start, int end)
+Copy the text between @var{start} and @var{end} in the current line
+to the kill ring, appending or prepending to the last kill if the
+last command was a kill command.  The text is deleted.
+If @var{start} is less than @var{end},
+the text is appended, otherwise prepended.  If the last command was
+not a kill, a new kill ring slot is used.
+@end deftypefun
+
+@node Utility Functions
+@subsection Utility Functions
+
+@deftypefun int rl_read_key ()
+Return the next character available.  This handles input inserted into
+the input stream via @var{pending input} (@pxref{Readline Variables})
+and @code{rl_stuff_char ()}, macros, and characters read from the keyboard.
+@end deftypefun
+
+@deftypefun int rl_getc (FILE *)
+Return the next character available from the keyboard.
+@end deftypefun
+
+@deftypefun int rl_stuff_char (int c)
+Insert @var{c} into the Readline input stream.  It will be "read"
+before Readline attempts to read characters from the terminal with
+@code{rl_read_key ()}.
+@end deftypefun
+
+@deftypefun rl_extend_line_buffer (int len)
+Ensure that @code{rl_line_buffer} has enough space to hold @var{len}
+characters, possibly reallocating it if necessary.
+@end deftypefun
+
+@deftypefun int rl_initialize ()
+Initialize or re-initialize Readline's internal state.
+@end deftypefun
+
+@deftypefun int rl_reset_terminal (char *terminal_name)
+Reinitialize Readline's idea of the terminal settings using
+@var{terminal_name} as the terminal type (e.g., @code{vt100}).
+@end deftypefun
+
+@deftypefun int alphabetic (int c)
+Return 1 if @var{c} is an alphabetic character.
+@end deftypefun
+
+@deftypefun int numeric (int c)
+Return 1 if @var{c} is a numeric character.
+@end deftypefun
+
+@deftypefun int ding ()
+Ring the terminal bell, obeying the setting of @code{bell-style}.
+@end deftypefun
+
+The following are implemented as macros, defined in @code{chartypes.h}.
+
+@deftypefun int uppercase_p (int c)
+Return 1 if @var{c} is an uppercase alphabetic character.
+@end deftypefun
+
+@deftypefun int lowercase_p (int c)
+Return 1 if @var{c} is a lowercase alphabetic character.
+@end deftypefun
+
+@deftypefun int digit_p (int c)
+Return 1 if @var{c} is a numeric character.
+@end deftypefun
+
+@deftypefun int to_upper (int c)
+If @var{c} is a lowercase alphabetic character, return the corresponding
+uppercase character.
+@end deftypefun
+
+@deftypefun int to_lower (int c)
+If @var{c} is an uppercase alphabetic character, return the corresponding
+lowercase character.
+@end deftypefun
+
+@deftypefun int digit_value (int c)
+If @var{c} is a number, return the value it represents.
+@end deftypefun
+
+@node Alternate Interface
+@subsection Alternate Interface
+
+An alternate interface is available to plain @code{readline()}.  Some
+applications need to interleave keyboard I/O with file, device, or
+window system I/O, typically by using a main loop to @code{select()}
+on various file descriptors.  To accomodate this need, readline can
+also be invoked as a `callback' function from an event loop.  There
+are functions available to make this easy.
+
+@deftypefun void rl_callback_handler_install (char *prompt, Vfunction *lhandler)
+Set up the terminal for readline I/O and display the initial
+expanded value of @var{prompt}.  Save the value of @var{lhandler} to
+use as a callback when a complete line of input has been entered.
+@end deftypefun
+
+@deftypefun void rl_callback_read_char ()
+Whenever an application determines that keyboard input is available, it
+should call @code{rl_callback_read_char()}, which will read the next
+character from the current input source.  If that character completes the
+line, @code{rl_callback_read_char} will invoke the @var{lhandler}
+function saved by @code{rl_callback_handler_install} to process the
+line.  @code{EOF} is  indicated by calling @var{lhandler} with a
+@code{NULL} line.
+@end deftypefun
+
+@deftypefun void rl_callback_handler_remove ()
+Restore the terminal to its initial state and remove the line handler.
+This may be called from within a callback as well as independently.
+@end deftypefun
+
+@subsection An Example
+
+Here is a function which changes lowercase characters to their uppercase
+equivalents, and uppercase characters to lowercase.  If
+this function was bound to @samp{M-c}, then typing @samp{M-c} would
+change the case of the character under point.  Typing @samp{M-1 0 M-c}
+would change the case of the following 10 characters, leaving the cursor on
+the last character changed.
+
+@example
+/* Invert the case of the COUNT following characters. */
+int
+invert_case_line (count, key)
+     int count, key;
+@{
+  register int start, end, i;
+
+  start = rl_point;
+
+  if (rl_point >= rl_end)
+    return (0);
+
+  if (count < 0)
+    @{
+      direction = -1;
+      count = -count;
+    @}
+  else
+    direction = 1;
+      
+  /* Find the end of the range to modify. */
+  end = start + (count * direction);
+
+  /* Force it to be within range. */
+  if (end > rl_end)
+    end = rl_end;
+  else if (end < 0)
+    end = 0;
+
+  if (start == end)
+    return (0);
+
+  if (start > end)
+    @{
+      int temp = start;
+      start = end;
+      end = temp;
+    @}
+
+  /* Tell readline that we are modifying the line, so it will save
+     the undo information. */
+  rl_modifying (start, end);
+
+  for (i = start; i != end; i++)
+    @{
+      if (uppercase_p (rl_line_buffer[i]))
+        rl_line_buffer[i] = to_lower (rl_line_buffer[i]);
+      else if (lowercase_p (rl_line_buffer[i]))
+        rl_line_buffer[i] = to_upper (rl_line_buffer[i]);
+    @}
+  /* Move point to on top of the last character changed. */
+  rl_point = (direction == 1) ? end - 1 : start;
+  return (0);
+@}
+@end example
+
+@node Custom Completers
+@section Custom Completers
+
+Typically, a program that reads commands from the user has a way of
+disambiguating commands and data.  If your program is one of these, then
+it can provide completion for commands, data, or both.
+The following sections describe how your program and Readline
+cooperate to provide this service.
+
+@menu
+* How Completing Works::	The logic used to do completion.
+* Completion Functions::	Functions provided by Readline.
+* Completion Variables::	Variables which control completion.
+* A Short Completion Example::	An example of writing completer subroutines.
+@end menu
+
+@node How Completing Works
+@subsection How Completing Works
+
+In order to complete some text, the full list of possible completions
+must be available.  That is, it is not possible to accurately
+expand a partial word without knowing all of the possible words
+which make sense in that context.  The Readline library provides
+the user interface to completion, and two of the most common
+completion functions:  filename and username.  For completing other types
+of text, you must write your own completion function.  This section
+describes exactly what such functions must do, and provides an example.
+
+There are three major functions used to perform completion:
+
+@enumerate
+@item
+The user-interface function @code{rl_complete ()}.  This function is
+called with the same arguments as other Readline
+functions intended for interactive use:  @var{count} and
+@var{invoking_key}.  It isolates the word to be completed and calls
+@code{completion_matches ()} to generate a list of possible completions.
+It then either lists the possible completions, inserts the possible
+completions, or actually performs the
+completion, depending on which behavior is desired.
+
+@item
+The internal function @code{completion_matches ()} uses your
+@dfn{generator} function to generate the list of possible matches, and
+then returns the array of these matches.  You should place the address
+of your generator function in @code{rl_completion_entry_function}.
+
+@item
+The generator function is called repeatedly from
+@code{completion_matches ()}, returning a string each time.  The
+arguments to the generator function are @var{text} and @var{state}.
+@var{text} is the partial word to be completed.  @var{state} is zero the
+first time the function is called, allowing the generator to perform
+any necessary initialization, and a positive non-zero integer for
+each subsequent call.  When the generator function returns
+@code{(char *)NULL} this signals @code{completion_matches ()} that there are
+no more possibilities left.  Usually the generator function computes the
+list of possible completions when @var{state} is zero, and returns them
+one at a time on subsequent calls.  Each string the generator function
+returns as a match must be allocated with @code{malloc()}; Readline
+frees the strings when it has finished with them.
+
+@end enumerate
+
+@deftypefun int rl_complete (int ignore, int invoking_key)
+Complete the word at or before point.  You have supplied the function
+that does the initial simple matching selection algorithm (see
+@code{completion_matches ()}).  The default is to do filename completion.
+@end deftypefun
+
+@deftypevar {Function *} rl_completion_entry_function
+This is a pointer to the generator function for @code{completion_matches
+()}.  If the value of @code{rl_completion_entry_function} is
+@code{(Function *)NULL} then the default filename generator function,
+@code{filename_completion_function ()}, is used.
+@end deftypevar
+
+@node Completion Functions
+@subsection Completion Functions
+
+Here is the complete list of callable completion functions present in
+Readline.
+
+@deftypefun int rl_complete_internal (int what_to_do)
+Complete the word at or before point.  @var{what_to_do} says what to do
+with the completion.  A value of @samp{?} means list the possible
+completions.  @samp{TAB} means do standard completion.  @samp{*} means
+insert all of the possible completions.  @samp{!} means to display
+all of the possible completions, if there is more than one, as well as
+performing partial completion.
+@end deftypefun
+
+@deftypefun int rl_complete (int ignore, int invoking_key)
+Complete the word at or before point.  You have supplied the function
+that does the initial simple matching selection algorithm (see
+@code{completion_matches ()} and @code{rl_completion_entry_function}).
+The default is to do filename
+completion.  This calls @code{rl_complete_internal ()} with an
+argument depending on @var{invoking_key}.
+@end deftypefun
+
+@deftypefun int rl_possible_completions (int count, int invoking_key))
+List the possible completions.  See description of @code{rl_complete
+()}.  This calls @code{rl_complete_internal ()} with an argument of
+@samp{?}.
+@end deftypefun
+
+@deftypefun int rl_insert_completions (int count, int invoking_key))
+Insert the list of possible completions into the line, deleting the
+partially-completed word.  See description of @code{rl_complete ()}.
+This calls @code{rl_complete_internal ()} with an argument of @samp{*}.
+@end deftypefun
+
+@deftypefun {char **} completion_matches (char *text, CPFunction *entry_func)
+Returns an array of @code{(char *)} which is a list of completions for
+@var{text}.  If there are no completions, returns @code{(char **)NULL}.
+The first entry in the returned array is the substitution for @var{text}.
+The remaining entries are the possible completions.  The array is
+terminated with a @code{NULL} pointer.
+
+@var{entry_func} is a function of two args, and returns a
+@code{(char *)}.  The first argument is @var{text}.  The second is a
+state argument; it is zero on the first call, and non-zero on subsequent
+calls.  @var{entry_func} returns a @code{NULL}  pointer to the caller
+when there are no more matches.
+@end deftypefun
+
+@deftypefun {char *} filename_completion_function (char *text, int state)
+A generator function for filename completion in the general case.  Note
+that completion in Bash is a little different because of all
+the pathnames that must be followed when looking up completions for a
+command.  The Bash source is a useful reference for writing custom
+completion functions.
+@end deftypefun
+
+@deftypefun {char *} username_completion_function (char *text, int state)
+A completion generator for usernames.  @var{text} contains a partial
+username preceded by a random character (usually @samp{~}).  As with all
+completion generators, @var{state} is zero on the first call and non-zero
+for subsequent calls.
+@end deftypefun
+
+@node Completion Variables
+@subsection Completion Variables
+
+@deftypevar {Function *} rl_completion_entry_function
+A pointer to the generator function for @code{completion_matches ()}.
+@code{NULL} means to use @code{filename_entry_function ()}, the default
+filename completer.
+@end deftypevar
+
+@deftypevar {CPPFunction *} rl_attempted_completion_function
+A pointer to an alternative function to create matches.
+The function is called with @var{text}, @var{start}, and @var{end}.
+@var{start} and @var{end} are indices in @code{rl_line_buffer} saying
+what the boundaries of @var{text} are.  If this function exists and
+returns @code{NULL}, or if this variable is set to @code{NULL}, then
+@code{rl_complete ()} will call the value of
+@code{rl_completion_entry_function} to generate matches, otherwise the
+array of strings returned will be used.
+@end deftypevar
+
+@deftypevar {CPFunction *} rl_filename_quoting_function
+A pointer to a function that will quote a filename in an application-
+specific fashion.  This is called if filename completion is being
+attempted and one of the characters in @code{rl_filename_quote_characters}
+appears in a completed filename.  The function is called with
+@var{text}, @var{match_type}, and @var{quote_pointer}.  The @var{text}
+is the filename to be quoted.  The @var{match_type} is either
+@code{SINGLE_MATCH}, if there is only one completion match, or
+@code{MULT_MATCH}.  Some functions use this to decide whether or not to
+insert a closing quote character.  The @var{quote_pointer} is a pointer
+to any opening quote character the user typed.  Some functions choose
+to reset this character.
+@end deftypevar
+
+@deftypevar {CPFunction *} rl_filename_dequoting_function
+A pointer to a function that will remove application-specific quoting
+characters from a filename before completion is attempted, so those
+characters do not interfere with matching the text against names in
+the filesystem.  It is called with @var{text}, the text of the word
+to be dequoted, and @var{quote_char}, which is the quoting character 
+that delimits the filename (usually @samp{'} or @samp{"}).  If
+@var{quote_char} is zero, the filename was not in an embedded string.
+@end deftypevar
+
+@deftypevar {Function *} rl_char_is_quoted_p
+A pointer to a function to call that determines whether or not a specific
+character in the line buffer is quoted, according to whatever quoting
+mechanism the program calling readline uses.  The function is called with
+two arguments: @var{text}, the text of the line, and @var{index}, the
+index of the character in the line.  It is used to decide whether a
+character found in @code{rl_completer_word_break_characters} should be
+used to break words for the completer.
+@end deftypevar
+
+@deftypevar int rl_completion_query_items
+Up to this many items will be displayed in response to a
+possible-completions call.  After that, we ask the user if she is sure
+she wants to see them all.  The default value is 100.
+@end deftypevar
+
+@deftypevar {char *} rl_basic_word_break_characters
+The basic list of characters that signal a break between words for the
+completer routine.  The default value of this variable is the characters
+which break words for completion in Bash, i.e.,
+@code{" \t\n\"\\'`@@$><=;|&@{("}.
+@end deftypevar
+
+@deftypevar {char *} rl_basic_quote_characters
+List of quote characters which can cause a word break.
+@end deftypevar
+
+@deftypevar {char *} rl_completer_word_break_characters
+The list of characters that signal a break between words for
+@code{rl_complete_internal ()}.  The default list is the value of
+@code{rl_basic_word_break_characters}.
+@end deftypevar
+
+@deftypevar {char *} rl_completer_quote_characters
+List of characters which can be used to quote a substring of the line.
+Completion occurs on the entire substring, and within the substring
+@code{rl_completer_word_break_characters} are treated as any other character,
+unless they also appear within this list.
+@end deftypevar
+
+@deftypevar {char *} rl_filename_quote_characters
+A list of characters that cause a filename to be quoted by the completer
+when they appear in a completed filename.  The default is the null string.
+@end deftypevar
+
+@deftypevar {char *} rl_special_prefixes
+The list of characters that are word break characters, but should be
+left in @var{text} when it is passed to the completion function.
+Programs can use this to help determine what kind of completing to do.
+For instance, Bash sets this variable to "$@@" so that it can complete
+shell variables and hostnames.
+@end deftypevar
+
+@deftypevar {int} rl_completion_append_character
+When a single completion alternative matches at the end of the command
+line, this character is appended to the inserted completion text.  The
+default is a space character (@samp{ }).  Setting this to the null
+character (@samp{\0}) prevents anything being appended automatically.
+This can be changed in custom completion functions to
+provide the ``most sensible word separator character'' according to
+an application-specific command line syntax specification.
+@end deftypevar
+
+@deftypevar int rl_ignore_completion_duplicates
+If non-zero, then disallow duplicates in the matches.  Default is 1.
+@end deftypevar
+
+@deftypevar int rl_filename_completion_desired
+Non-zero means that the results of the matches are to be treated as
+filenames.  This is @emph{always} zero on entry, and can only be changed
+within a completion entry generator function.  If it is set to a non-zero
+value, directory names have a slash appended and Readline attempts to
+quote completed filenames if they contain any embedded word break
+characters.
+@end deftypevar
+
+@deftypevar int rl_filename_quoting_desired
+Non-zero means that the results of the matches are to be quoted using
+double quotes (or an application-specific quoting mechanism) if the
+completed filename contains any characters in
+@code{rl_filename_quote_chars}.  This is @emph{always} non-zero
+on entry, and can only be changed within a completion entry generator
+function.  The quoting is effected via a call to the function pointed to
+by @code{rl_filename_quoting_function}.
+@end deftypevar
+
+@deftypevar int rl_inhibit_completion
+If this variable is non-zero, completion is inhibit<ed.  The completion
+character will be inserted as any other bound to @code{self-insert}.
+@end deftypevar
+
+@deftypevar {Function *} rl_ignore_some_completions_function
+This function, if defined, is called by the completer when real filename
+completion is done, after all the matching names have been generated.
+It is passed a @code{NULL} terminated array of matches.
+The first element (@code{matches[0]}) is the
+maximal substring common to all matches. This function can
+re-arrange the list of matches as required, but each element deleted
+from the array must be freed.
+@end deftypevar
+
+@deftypevar {Function *} rl_directory_completion_hook
+This function, if defined, is allowed to modify the directory portion
+of filenames Readline completes.  It is called with the address of a
+string (the current directory name) as an argument.  It could be used
+to expand symbolic links or shell variables in pathnames.
+@end deftypevar
+
+@node A Short Completion Example
+@subsection A Short Completion Example
+
+Here is a small application demonstrating the use of the GNU Readline
+library.  It is called @code{fileman}, and the source code resides in
+@file{examples/fileman.c}.  This sample application provides
+completion of command names, line editing features, and access to the
+history list.
+
+@page
+@smallexample
+/* fileman.c -- A tiny application which demonstrates how to use the
+   GNU Readline library.  This application interactively allows users
+   to manipulate files and their modes. */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <sys/errno.h>
+
+#include <readline/readline.h>
+#include <readline/history.h>
+
+extern char *getwd ();
+extern char *xmalloc ();
+
+/* The names of functions that actually do the manipulation. */
+int com_list (), com_view (), com_rename (), com_stat (), com_pwd ();
+int com_delete (), com_help (), com_cd (), com_quit ();
+
+/* A structure which contains information on the commands this program
+   can understand. */
+
+typedef struct @{
+  char *name;			/* User printable name of the function. */
+  Function *func;		/* Function to call to do the job. */
+  char *doc;			/* Documentation for this function.  */
+@} COMMAND;
+
+COMMAND commands[] = @{
+  @{ "cd", com_cd, "Change to directory DIR" @},
+  @{ "delete", com_delete, "Delete FILE" @},
+  @{ "help", com_help, "Display this text" @},
+  @{ "?", com_help, "Synonym for `help'" @},
+  @{ "list", com_list, "List files in DIR" @},
+  @{ "ls", com_list, "Synonym for `list'" @},
+  @{ "pwd", com_pwd, "Print the current working directory" @},
+  @{ "quit", com_quit, "Quit using Fileman" @},
+  @{ "rename", com_rename, "Rename FILE to NEWNAME" @},
+  @{ "stat", com_stat, "Print out statistics on FILE" @},
+  @{ "view", com_view, "View the contents of FILE" @},
+  @{ (char *)NULL, (Function *)NULL, (char *)NULL @}
+@};
+
+/* Forward declarations. */
+char *stripwhite ();
+COMMAND *find_command ();
+
+/* The name of this program, as taken from argv[0]. */
+char *progname;
+
+/* When non-zero, this global means the user is done using this program. */
+int done;
+
+char *
+dupstr (s)
+     int s;
+@{
+  char *r;
+
+  r = xmalloc (strlen (s) + 1);
+  strcpy (r, s);
+  return (r);
+@}
+
+main (argc, argv)
+     int argc;
+     char **argv;
+@{
+  char *line, *s;
+
+  progname = argv[0];
+
+  initialize_readline ();	/* Bind our completer. */
+
+  /* Loop reading and executing lines until the user quits. */
+  for ( ; done == 0; )
+    @{
+      line = readline ("FileMan: ");
+
+      if (!line)
+        break;
+
+      /* Remove leading and trailing whitespace from the line.
+         Then, if there is anything left, add it to the history list
+         and execute it. */
+      s = stripwhite (line);
+
+      if (*s)
+        @{
+          add_history (s);
+          execute_line (s);
+        @}
+
+      free (line);
+    @}
+  exit (0);
+@}
+
+/* Execute a command line. */
+int
+execute_line (line)
+     char *line;
+@{
+  register int i;
+  COMMAND *command;
+  char *word;
+
+  /* Isolate the command word. */
+  i = 0;
+  while (line[i] && whitespace (line[i]))
+    i++;
+  word = line + i;
+
+  while (line[i] && !whitespace (line[i]))
+    i++;
+
+  if (line[i])
+    line[i++] = '\0';
+
+  command = find_command (word);
+
+  if (!command)
+    @{
+      fprintf (stderr, "%s: No such command for FileMan.\n", word);
+      return (-1);
+    @}
+
+  /* Get argument to command, if any. */
+  while (whitespace (line[i]))
+    i++;
+
+  word = line + i;
+
+  /* Call the function. */
+  return ((*(command->func)) (word));
+@}
+
+/* Look up NAME as the name of a command, and return a pointer to that
+   command.  Return a NULL pointer if NAME isn't a command name. */
+COMMAND *
+find_command (name)
+     char *name;
+@{
+  register int i;
+
+  for (i = 0; commands[i].name; i++)
+    if (strcmp (name, commands[i].name) == 0)
+      return (&commands[i]);
+
+  return ((COMMAND *)NULL);
+@}
+
+/* Strip whitespace from the start and end of STRING.  Return a pointer
+   into STRING. */
+char *
+stripwhite (string)
+     char *string;
+@{
+  register char *s, *t;
+
+  for (s = string; whitespace (*s); s++)
+    ;
+    
+  if (*s == 0)
+    return (s);
+
+  t = s + strlen (s) - 1;
+  while (t > s && whitespace (*t))
+    t--;
+  *++t = '\0';
+
+  return s;
+@}
+
+/* **************************************************************** */
+/*                                                                  */
+/*                  Interface to Readline Completion                */
+/*                                                                  */
+/* **************************************************************** */
+
+char *command_generator ();
+char **fileman_completion ();
+
+/* Tell the GNU Readline library how to complete.  We want to try to complete
+   on command names if this is the first word in the line, or on filenames
+   if not. */
+initialize_readline ()
+@{
+  /* Allow conditional parsing of the ~/.inputrc file. */
+  rl_readline_name = "FileMan";
+
+  /* Tell the completer that we want a crack first. */
+  rl_attempted_completion_function = (CPPFunction *)fileman_completion;
+@}
+
+/* Attempt to complete on the contents of TEXT.  START and END bound the
+   region of rl_line_buffer that contains the word to complete.  TEXT is
+   the word to complete.  We can use the entire contents of rl_line_buffer
+   in case we want to do some simple parsing.  Return the array of matches,
+   or NULL if there aren't any. */
+char **
+fileman_completion (text, start, end)
+     char *text;
+     int start, end;
+@{
+  char **matches;
+
+  matches = (char **)NULL;
+
+  /* If this word is at the start of the line, then it is a command
+     to complete.  Otherwise it is the name of a file in the current
+     directory. */
+  if (start == 0)
+    matches = completion_matches (text, command_generator);
+
+  return (matches);
+@}
+
+/* Generator function for command completion.  STATE lets us know whether
+   to start from scratch; without any state (i.e. STATE == 0), then we
+   start at the top of the list. */
+char *
+command_generator (text, state)
+     char *text;
+     int state;
+@{
+  static int list_index, len;
+  char *name;
+
+  /* If this is a new word to complete, initialize now.  This includes
+     saving the length of TEXT for efficiency, and initializing the index
+     variable to 0. */
+  if (!state)
+    @{
+      list_index = 0;
+      len = strlen (text);
+    @}
+
+  /* Return the next name which partially matches from the command list. */
+  while (name = commands[list_index].name)
+    @{
+      list_index++;
+
+      if (strncmp (name, text, len) == 0)
+        return (dupstr(name));
+    @}
+
+  /* If no names matched, then return NULL. */
+  return ((char *)NULL);
+@}
+
+/* **************************************************************** */
+/*                                                                  */
+/*                       FileMan Commands                           */
+/*                                                                  */
+/* **************************************************************** */
+
+/* String to pass to system ().  This is for the LIST, VIEW and RENAME
+   commands. */
+static char syscom[1024];
+
+/* List the file(s) named in arg. */
+com_list (arg)
+     char *arg;
+@{
+  if (!arg)
+    arg = "";
+
+  sprintf (syscom, "ls -FClg %s", arg);
+  return (system (syscom));
+@}
+
+com_view (arg)
+     char *arg;
+@{
+  if (!valid_argument ("view", arg))
+    return 1;
+
+  sprintf (syscom, "more %s", arg);
+  return (system (syscom));
+@}
+
+com_rename (arg)
+     char *arg;
+@{
+  too_dangerous ("rename");
+  return (1);
+@}
+
+com_stat (arg)
+     char *arg;
+@{
+  struct stat finfo;
+
+  if (!valid_argument ("stat", arg))
+    return (1);
+
+  if (stat (arg, &finfo) == -1)
+    @{
+      perror (arg);
+      return (1);
+    @}
+
+  printf ("Statistics for `%s':\n", arg);
+
+  printf ("%s has %d link%s, and is %d byte%s in length.\n", arg,
+          finfo.st_nlink,
+          (finfo.st_nlink == 1) ? "" : "s",
+          finfo.st_size,
+          (finfo.st_size == 1) ? "" : "s");
+  printf ("Inode Last Change at: %s", ctime (&finfo.st_ctime));
+  printf ("      Last access at: %s", ctime (&finfo.st_atime));
+  printf ("    Last modified at: %s", ctime (&finfo.st_mtime));
+  return (0);
+@}
+
+com_delete (arg)
+     char *arg;
+@{
+  too_dangerous ("delete");
+  return (1);
+@}
+
+/* Print out help for ARG, or for all of the commands if ARG is
+   not present. */
+com_help (arg)
+     char *arg;
+@{
+  register int i;
+  int printed = 0;
+
+  for (i = 0; commands[i].name; i++)
+    @{
+      if (!*arg || (strcmp (arg, commands[i].name) == 0))
+        @{
+          printf ("%s\t\t%s.\n", commands[i].name, commands[i].doc);
+          printed++;
+        @}
+    @}
+
+  if (!printed)
+    @{
+      printf ("No commands match `%s'.  Possibilties are:\n", arg);
+
+      for (i = 0; commands[i].name; i++)
+        @{
+          /* Print in six columns. */
+          if (printed == 6)
+            @{
+              printed = 0;
+              printf ("\n");
+            @}
+
+          printf ("%s\t", commands[i].name);
+          printed++;
+        @}
+
+      if (printed)
+        printf ("\n");
+    @}
+  return (0);
+@}
+
+/* Change to the directory ARG. */
+com_cd (arg)
+     char *arg;
+@{
+  if (chdir (arg) == -1)
+    @{
+      perror (arg);
+      return 1;
+    @}
+
+  com_pwd ("");
+  return (0);
+@}
+
+/* Print out the current working directory. */
+com_pwd (ignore)
+     char *ignore;
+@{
+  char dir[1024], *s;
+
+  s = getwd (dir);
+  if (s == 0)
+    @{
+      printf ("Error getting pwd: %s\n", dir);
+      return 1;
+    @}
+
+  printf ("Current directory is %s\n", dir);
+  return 0;
+@}
+
+/* The user wishes to quit using this program.  Just set DONE non-zero. */
+com_quit (arg)
+     char *arg;
+@{
+  done = 1;
+  return (0);
+@}
+
+/* Function which tells you that you can't do this. */
+too_dangerous (caller)
+     char *caller;
+@{
+  fprintf (stderr,
+           "%s: Too dangerous for me to distribute.  Write it yourself.\n",
+           caller);
+@}
+
+/* Return non-zero if ARG is a valid argument for CALLER, else print
+   an error message and return zero. */
+int
+valid_argument (caller, arg)
+     char *caller, *arg;
+@{
+  if (!arg || !*arg)
+    @{
+      fprintf (stderr, "%s: Argument required.\n", caller);
+      return (0);
+    @}
+
+  return (1);
+@}
+@end smallexample
diff --git a/readline/doc/rluser.texinfo b/readline/doc/rluser.texinfo
new file mode 100644
index 00000000000..b2fd060366a
--- /dev/null
+++ b/readline/doc/rluser.texinfo
@@ -0,0 +1,1261 @@
+@comment %**start of header (This is for running Texinfo on a region.)
+@setfilename rluser.info
+@comment %**end of header (This is for running Texinfo on a region.)
+@setchapternewpage odd
+
+@ignore
+This file documents the end user interface to the GNU command line
+editing features.  It is to be an appendix to manuals for programs which
+use these features.  There is a document entitled "readline.texinfo"
+which contains both end-user and programmer documentation for the GNU
+Readline Library.
+
+Copyright (C) 1988, 1991, 1993, 1996 Free Software Foundation, Inc.
+
+Authored by Brian Fox and Chet Ramey.
+
+Permission is granted to process this file through Tex and print the
+results, provided the printed document carries copying permission notice
+identical to this one except for the removal of this paragraph (this
+paragraph not being relevant to the printed manual).
+
+Permission is granted to make and distribute verbatim copies of this manual
+provided the copyright notice and this permission notice are preserved on
+all copies.
+
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided also that the
+GNU Copyright statement is available to the distributee, and provided that
+the entire resulting derived work is distributed under the terms of a
+permission notice identical to this one.
+
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for modified versions.
+@end ignore
+
+@comment If you are including this manual as an appendix, then set the
+@comment variable readline-appendix.
+
+@node Command Line Editing
+@chapter Command Line Editing
+
+This chapter describes the basic features of the @sc{GNU}
+command line editing interface.
+
+@menu
+* Introduction and Notation::	Notation used in this text.
+* Readline Interaction::	The minimum set of commands for editing a line.
+* Readline Init File::		Customizing Readline from a user's view.
+* Bindable Readline Commands::	A description of most of the Readline commands
+				available for binding
+* Readline vi Mode::		A short description of how to make Readline
+				behave like the vi editor.
+@end menu
+
+@node Introduction and Notation
+@section Introduction to Line Editing
+
+The following paragraphs describe the notation used to represent
+keystrokes.
+
+The text @key{C-k} is read as `Control-K' and describes the character
+produced when the @key{k} key is pressed while the Control key
+is depressed.
+
+The text @key{M-k} is read as `Meta-K' and describes the character
+produced when the meta key (if you have one) is depressed, and the @key{k}
+key is pressed.  If you do not have a meta key, the identical keystroke
+can be generated by typing @key{ESC} @i{first}, and then typing @key{k}.
+Either process is known as @dfn{metafying} the @key{k} key.
+
+The text @key{M-C-k} is read as `Meta-Control-k' and describes the
+character produced by @dfn{metafying} @key{C-k}.
+
+In addition, several keys have their own names.  Specifically,
+@key{DEL}, @key{ESC}, @key{LFD}, @key{SPC}, @key{RET}, and @key{TAB} all
+stand for themselves when seen in this text, or in an init file
+(@pxref{Readline Init File}).
+
+@node Readline Interaction
+@section Readline Interaction
+@cindex interaction, readline
+
+Often during an interactive session you type in a long line of text,
+only to notice that the first word on the line is misspelled.  The
+Readline library gives you a set of commands for manipulating the text
+as you type it in, allowing you to just fix your typo, and not forcing
+you to retype the majority of the line.  Using these editing commands,
+you move the cursor to the place that needs correction, and delete or
+insert the text of the corrections.  Then, when you are satisfied with
+the line, you simply press @key{RETURN}.  You do not have to be at the
+end of the line to press @key{RETURN}; the entire line is accepted
+regardless of the location of the cursor within the line.
+
+@menu
+* Readline Bare Essentials::	The least you need to know about Readline.
+* Readline Movement Commands::	Moving about the input line.
+* Readline Killing Commands::	How to delete text, and how to get it back!
+* Readline Arguments::		Giving numeric arguments to commands.
+* Searching::			Searching through previous lines.
+ @end menu
+
+@node Readline Bare Essentials
+@subsection Readline Bare Essentials
+@cindex notation, readline
+@cindex command editing
+@cindex editing command lines
+
+In order to enter characters into the line, simply type them.  The typed
+character appears where the cursor was, and then the cursor moves one
+space to the right.  If you mistype a character, you can use your
+erase character to back up and delete the mistyped character.
+
+Sometimes you may miss typing a character that you wanted to type, and
+not notice your error until you have typed several other characters.  In
+that case, you can type @key{C-b} to move the cursor to the left, and then
+correct your mistake.  Afterwards, you can move the cursor to the right
+with @key{C-f}.
+
+When you add text in the middle of a line, you will notice that characters
+to the right of the cursor are `pushed over' to make room for the text
+that you have inserted.  Likewise, when you delete text behind the cursor,
+characters to the right of the cursor are `pulled back' to fill in the
+blank space created by the removal of the text.  A list of the basic bare
+essentials for editing the text of an input line follows.
+
+@table @asis
+@item @key{C-b}
+Move back one character.
+@item @key{C-f}
+Move forward one character.
+@item @key{DEL}
+Delete the character to the left of the cursor.
+@item @key{C-d}
+Delete the character underneath the cursor.
+@item @w{Printing characters}
+Insert the character into the line at the cursor.
+@item @key{C-_}
+Undo the last editing command.  You can undo all the way back to an
+empty line.
+@end table
+
+@node Readline Movement Commands
+@subsection Readline Movement Commands
+
+
+The above table describes the most basic possible keystrokes that you need
+in order to do editing of the input line.  For your convenience, many
+other commands have been added in addition to @key{C-b}, @key{C-f},
+@key{C-d}, and @key{DEL}.  Here are some commands for moving more rapidly
+about the line.
+
+@table @key
+@item C-a
+Move to the start of the line.
+@item C-e
+Move to the end of the line.
+@item M-f
+Move forward a word, where a word is composed of letters and digits.
+@item M-b
+Move backward a word.
+@item C-l
+Clear the screen, reprinting the current line at the top.
+@end table
+
+Notice how @key{C-f} moves forward a character, while @key{M-f} moves
+forward a word.  It is a loose convention that control keystrokes
+operate on characters while meta keystrokes operate on words.
+
+@node Readline Killing Commands
+@subsection Readline Killing Commands
+
+@cindex killing text
+@cindex yanking text
+
+@dfn{Killing} text means to delete the text from the line, but to save
+it away for later use, usually by @dfn{yanking} (re-inserting)
+it back into the line.
+If the description for a command says that it `kills' text, then you can
+be sure that you can get the text back in a different (or the same)
+place later.
+
+When you use a kill command, the text is saved in a @dfn{kill-ring}.
+Any number of consecutive kills save all of the killed text together, so
+that when you yank it back, you get it all.  The kill
+ring is not line specific; the text that you killed on a previously
+typed line is available to be yanked back later, when you are typing
+another line.
+@cindex kill ring
+
+Here is the list of commands for killing text.
+
+@table @key
+@item C-k
+Kill the text from the current cursor position to the end of the line.
+
+@item M-d
+Kill from the cursor to the end of the current word, or if between
+words, to the end of the next word.
+
+@item M-DEL
+Kill from the cursor the start of the previous word, or if between
+words, to the start of the previous word.
+
+@item C-w
+Kill from the cursor to the previous whitespace.  This is different than
+@key{M-DEL} because the word boundaries differ.
+
+@end table
+
+Here is how to @dfn{yank} the text back into the line.  Yanking
+means to copy the most-recently-killed text from the kill buffer.
+
+@table @key
+@item C-y
+Yank the most recently killed text back into the buffer at the cursor.
+
+@item M-y
+Rotate the kill-ring, and yank the new top.  You can only do this if
+the prior command is @key{C-y} or @key{M-y}.
+@end table
+
+@node Readline Arguments
+@subsection Readline Arguments
+
+You can pass numeric arguments to Readline commands.  Sometimes the
+argument acts as a repeat count, other times it is the @i{sign} of the
+argument that is significant.  If you pass a negative argument to a
+command which normally acts in a forward direction, that command will
+act in a backward direction.  For example, to kill text back to the
+start of the line, you might type @samp{M-- C-k}.
+
+The general way to pass numeric arguments to a command is to type meta
+digits before the command.  If the first `digit' typed is a minus
+sign (@key{-}), then the sign of the argument will be negative.  Once
+you have typed one meta digit to get the argument started, you can type
+the remainder of the digits, and then the command.  For example, to give
+the @key{C-d} command an argument of 10, you could type @samp{M-1 0 C-d}.
+
+@node Searching
+@subsection Searching for Commands in the History
+
+Readline provides commands for searching through the command history
+@ifset BashFeatures
+(@pxref{Bash History Facilities})
+@end ifset
+for lines containing a specified string.
+There are two search modes:  @var{incremental} and @var{non-incremental}.
+
+Incremental searches begin before the user has finished typing the
+search string.
+As each character of the search string is typed, Readline displays
+the next entry from the history matching the string typed so far.
+An incremental search requires only as many characters as needed to
+find the desired history entry.
+The @key{ESC} character is used to terminate an incremental search.
+@key{C-j} will also terminate the search.
+@key{C-g} will abort an incremental search and restore the original line.
+When the search is terminated, the history entry containing the
+search string becomes the current line.
+To find other matching entries in the history list, type @key{C-s} or
+@key{C-r} as appropriate.
+This will search backward or forward in the history for the next
+entry matching the search string typed so far.
+Any other key sequence bound to a Readline command will terminate
+the search and execute that command.
+For instance, a @key{RET} will terminate the search and accept
+the line, thereby executing the command from the history list.
+
+Non-incremental searches read the entire search string before starting
+to search for matching history lines.  The search string may be
+typed by the user or be part of the contents of the current line.
+
+@node Readline Init File
+@section Readline Init File
+@cindex initialization file, readline
+
+Although the Readline library comes with a set of @code{emacs}-like
+keybindings installed by default, it is possible to use a different set
+of keybindings.
+Any user can customize programs that use Readline by putting
+commands in an @dfn{inputrc} file in his home directory.
+The name of this
+@ifset BashFeatures
+file is taken from the value of the shell variable @code{INPUTRC}.  If
+@end ifset
+@ifclear BashFeatures
+file is taken from the value of the environment variable @code{INPUTRC}.  If
+@end ifclear
+that variable is unset, the default is @file{~/.inputrc}.
+
+When a program which uses the Readline library starts up, the
+init file is read, and the key bindings are set.
+
+In addition, the @code{C-x C-r} command re-reads this init file, thus
+incorporating any changes that you might have made to it.
+
+@menu
+* Readline Init File Syntax::	Syntax for the commands in the inputrc file.
+
+* Conditional Init Constructs::	Conditional key bindings in the inputrc file.
+
+* Sample Init File::		An example inputrc file.
+@end menu
+
+@node Readline Init File Syntax
+@subsection Readline Init File Syntax
+
+There are only a few basic constructs allowed in the
+Readline init file.  Blank lines are ignored.
+Lines beginning with a @samp{#} are comments.
+Lines beginning with a @samp{$} indicate conditional
+constructs (@pxref{Conditional Init Constructs}).  Other lines
+denote variable settings and key bindings.
+
+@table @asis
+@item Variable Settings
+You can modify the run-time behavior of Readline by
+altering the values of variables in Readline
+using the @code{set} command within the init file.  Here is how to
+change from the default Emacs-like key binding to use
+@code{vi} line editing commands:
+
+@example
+set editing-mode vi
+@end example
+
+A great deal of run-time behavior is changeable with the following
+variables.
+
+@table @code
+
+@item bell-style
+@vindex bell-style
+Controls what happens when Readline wants to ring the terminal bell.
+If set to @samp{none}, Readline never rings the bell.  If set to
+@samp{visible}, Readline uses a visible bell if one is available.
+If set to @samp{audible} (the default), Readline attempts to ring
+the terminal's bell.
+
+@item comment-begin
+@vindex comment-begin
+The string to insert at the beginning of the line when the
+@code{insert-comment} command is executed.  The default value
+is @code{"#"}.
+
+@item completion-ignore-case
+If set to @samp{on}, Readline performs filename matching and completion
+in a case-insensitive fashion.
+The default value is @samp{off}.
+
+@item completion-query-items
+@vindex completion-query-items
+The number of possible completions that determines when the user is
+asked whether he wants to see the list of possibilities.  If the
+number of possible completions is greater than this value,
+Readline will ask the user whether or not he wishes to view
+them; otherwise, they are simply listed.  The default limit is
+@code{100}.
+
+@item convert-meta
+@vindex convert-meta
+If set to @samp{on}, Readline will convert characters with the
+eighth bit set to an ASCII key sequence by stripping the eighth
+bit and prepending an @key{ESC} character, converting them to a
+meta-prefixed key sequence.  The default value is @samp{on}.
+
+@item disable-completion
+@vindex disable-completion
+If set to @samp{On}, Readline will inhibit word completion.
+Completion  characters will be inserted into the line as if they had
+been mapped to @code{self-insert}.  The default is @samp{off}.
+
+@item editing-mode
+@vindex editing-mode
+The @code{editing-mode} variable controls which default set of
+key bindings is used.  By default, Readline starts up in Emacs editing
+mode, where the keystrokes are most similar to Emacs.  This variable can be
+set to either @samp{emacs} or @samp{vi}.
+
+@item enable-keypad
+@vindex enable-keypad
+When set to @samp{on}, Readline will try to enable the application
+keypad when it is called.  Some systems need this to enable the
+arrow keys.  The default is @samp{off}.
+
+@item expand-tilde
+@vindex expand-tilde
+If set to @samp{on}, tilde expansion is performed when Readline
+attempts word completion.  The default is @samp{off}.
+
+@item horizontal-scroll-mode
+@vindex horizontal-scroll-mode
+This variable can be set to either @samp{on} or @samp{off}.  Setting it
+to @samp{on} means that the text of the lines being edited will scroll
+horizontally on a single screen line when they are longer than the width
+of the screen, instead of wrapping onto a new screen line.  By default,
+this variable is set to @samp{off}.
+
+@item keymap
+@vindex keymap
+Sets Readline's idea of the current keymap for key binding commands.
+Acceptable @code{keymap} names are
+@code{emacs},
+@code{emacs-standard},
+@code{emacs-meta},
+@code{emacs-ctlx},
+@code{vi},
+@code{vi-command}, and
+@code{vi-insert}.
+@code{vi} is equivalent to @code{vi-command}; @code{emacs} is
+equivalent to @code{emacs-standard}.  The default value is @code{emacs}.
+The value of the @code{editing-mode} variable also affects the
+default keymap.
+
+@item mark-directories
+If set to @samp{on}, completed directory names have a slash
+appended.  The default is @samp{on}.
+
+@item mark-modified-lines
+@vindex mark-modified-lines
+This variable, when set to @samp{on}, causes Readline to display an
+asterisk (@samp{*}) at the start of history lines which have been modified.
+This variable is @samp{off} by default.
+
+@item input-meta
+@vindex input-meta
+@vindex meta-flag
+If set to @samp{on}, Readline will enable eight-bit input (it
+will not strip the eighth bit from the characters it reads),
+regardless of what the terminal claims it can support.  The
+default value is @samp{off}.  The name @code{meta-flag} is a
+synonym for this variable.
+
+@item output-meta
+@vindex output-meta
+If set to @samp{on}, Readline will display characters with the
+eighth bit set directly rather than as a meta-prefixed escape
+sequence.  The default is @samp{off}.
+
+@item print-completions-horizontally
+If set to @samp{on}, Readline will display completions with matches
+sorted horizontally in alphabetical order, rather than down the screen.
+The default is @samp{off}.
+
+@item show-all-if-ambiguous
+@vindex show-all-if-ambiguous
+This alters the default behavior of the completion functions.  If
+set to @samp{on}, 
+words which have more than one possible completion cause the
+matches to be listed immediately instead of ringing the bell.
+The default value is @samp{off}.
+
+@item visible-stats
+@vindex visible-stats
+If set to @samp{on}, a character denoting a file's type
+is appended to the filename when listing possible
+completions.  The default is @samp{off}.
+
+@end table
+
+@item Key Bindings
+The syntax for controlling key bindings in the init file is
+simple.  First you have to know the name of the command that you
+want to change.  The following sections contain tables of the command
+name, the default keybinding, if any, and a short description of what
+the command does.
+
+Once you know the name of the command, simply place the name of the key
+you wish to bind the command to, a colon, and then the name of the
+command on a line in the init file.  The name of the key
+can be expressed in different ways, depending on which is most
+comfortable for you.
+
+@table @asis
+@item @w{@var{keyname}: @var{function-name} or @var{macro}}
+@var{keyname} is the name of a key spelled out in English.  For example:
+@example
+Control-u: universal-argument
+Meta-Rubout: backward-kill-word
+Control-o: "> output"
+@end example
+
+In the above example, @key{C-u} is bound to the function
+@code{universal-argument}, and @key{C-o} is bound to run the macro
+expressed on the right hand side (that is, to insert the text
+@samp{> output} into the line).
+
+@item @w{"@var{keyseq}": @var{function-name} or @var{macro}}
+@var{keyseq} differs from @var{keyname} above in that strings
+denoting an entire key sequence can be specified, by placing
+the key sequence in double quotes.  Some GNU Emacs style key
+escapes can be used, as in the following example, but the
+special character names are not recognized.
+
+@example
+"\C-u": universal-argument
+"\C-x\C-r": re-read-init-file
+"\e[11~": "Function Key 1"
+@end example
+
+In the above example, @key{C-u} is bound to the function
+@code{universal-argument} (just as it was in the first example),
+@samp{@key{C-x} @key{C-r}} is bound to the function @code{re-read-init-file},
+and @samp{@key{ESC} @key{[} @key{1} @key{1} @key{~}} is bound to insert
+the text @samp{Function Key 1}.
+
+@end table
+
+The following GNU Emacs style escape sequences are available when
+specifying key sequences:
+
+@table @code
+@item @kbd{\C-}
+control prefix
+@item @kbd{\M-}
+meta prefix
+@item @kbd{\e}
+an escape character
+@item @kbd{\\}
+backslash
+@item @kbd{\"}
+@key{"}
+@item @kbd{\'}
+@key{'}
+@end table
+
+In addition to the GNU Emacs style escape sequences, a second
+set of backslash escapes is available:
+
+@table @code
+@item \a
+alert (bell)
+@item \b
+backspace
+@item \d
+delete
+@item \f
+form feed
+@item \n
+newline
+@item \r
+carriage return
+@item \t
+horizontal tab
+@item \v
+vertical tab
+@item \@var{nnn}
+the character whose ASCII code is the octal value @var{nnn}
+(one to three digits)
+@item \x@var{nnn}
+the character whose ASCII code is the hexadecimal value @var{nnn}
+(one to three digits)
+@end table
+
+When entering the text of a macro, single or double quotes must
+be used to indicate a macro definition.
+Unquoted text is assumed to be a function name.
+In the macro body, the backslash escapes described above are expanded.
+Backslash will quote any other character in the macro text,
+including @samp{"} and @samp{'}.
+For example, the following binding will make @samp{C-x \}
+insert a single @samp{\} into the line:
+@example
+"\C-x\\": "\\"
+@end example
+
+@end table
+
+@node Conditional Init Constructs
+@subsection Conditional Init Constructs
+
+Readline implements a facility similar in spirit to the conditional
+compilation features of the C preprocessor which allows key
+bindings and variable settings to be performed as the result
+of tests.  There are four parser directives used.
+
+@table @code
+@item $if
+The @code{$if} construct allows bindings to be made based on the
+editing mode, the terminal being used, or the application using
+Readline.  The text of the test extends to the end of the line;
+no characters are required to isolate it.
+
+@table @code
+@item mode
+The @code{mode=} form of the @code{$if} directive is used to test
+whether Readline is in @code{emacs} or @code{vi} mode.
+This may be used in conjunction
+with the @samp{set keymap} command, for instance, to set bindings in
+the @code{emacs-standard} and @code{emacs-ctlx} keymaps only if
+Readline is starting out in @code{emacs} mode.
+
+@item term
+The @code{term=} form may be used to include terminal-specific
+key bindings, perhaps to bind the key sequences output by the
+terminal's function keys.  The word on the right side of the
+@samp{=} is tested against both the full name of the terminal and
+the portion of the terminal name before the first @samp{-}.  This
+allows @code{sun} to match both @code{sun} and @code{sun-cmd},
+for instance.
+
+@item application
+The @var{application} construct is used to include
+application-specific settings.  Each program using the Readline
+library sets the @var{application name}, and you can test for it. 
+This could be used to bind key sequences to functions useful for
+a specific program.  For instance, the following command adds a
+key sequence that quotes the current or previous word in Bash:
+@example
+$if Bash
+# Quote the current or previous word
+"\C-xq": "\eb\"\ef\""
+$endif
+@end example
+@end table
+
+@item $endif
+This command, as seen in the previous example, terminates an
+@code{$if} command.
+
+@item $else
+Commands in this branch of the @code{$if} directive are executed if
+the test fails.
+
+@item $include
+This directive takes a single filename as an argument and reads commands
+and bindings from that file.
+@example
+$include /etc/inputrc
+@end example
+@end table
+
+@node Sample Init File
+@subsection Sample Init File
+
+Here is an example of an inputrc file.  This illustrates key
+binding, variable assignment, and conditional syntax.
+
+@example
+@page
+# This file controls the behaviour of line input editing for
+# programs that use the Gnu Readline library.  Existing programs
+# include FTP, Bash, and Gdb.
+#
+# You can re-read the inputrc file with C-x C-r.
+# Lines beginning with '#' are comments.
+#
+# First, include any systemwide bindings and variable assignments from
+# /etc/Inputrc
+$include /etc/Inputrc
+
+#
+# Set various bindings for emacs mode.
+
+set editing-mode emacs 
+
+$if mode=emacs
+
+Meta-Control-h:	backward-kill-word	Text after the function name is ignored
+
+#
+# Arrow keys in keypad mode
+#
+#"\M-OD":        backward-char
+#"\M-OC":        forward-char
+#"\M-OA":        previous-history
+#"\M-OB":        next-history
+#
+# Arrow keys in ANSI mode
+#
+"\M-[D":        backward-char
+"\M-[C":        forward-char
+"\M-[A":        previous-history
+"\M-[B":        next-history
+#
+# Arrow keys in 8 bit keypad mode
+#
+#"\M-\C-OD":       backward-char
+#"\M-\C-OC":       forward-char
+#"\M-\C-OA":       previous-history
+#"\M-\C-OB":       next-history
+#
+# Arrow keys in 8 bit ANSI mode
+#
+#"\M-\C-[D":       backward-char
+#"\M-\C-[C":       forward-char
+#"\M-\C-[A":       previous-history
+#"\M-\C-[B":       next-history
+
+C-q: quoted-insert
+
+$endif
+
+# An old-style binding.  This happens to be the default.
+TAB: complete
+
+# Macros that are convenient for shell interaction
+$if Bash
+# edit the path
+"\C-xp": "PATH=$@{PATH@}\e\C-e\C-a\ef\C-f"
+# prepare to type a quoted word -- insert open and close double quotes
+# and move to just after the open quote
+"\C-x\"": "\"\"\C-b"
+# insert a backslash (testing backslash escapes in sequences and macros)
+"\C-x\\": "\\"
+# Quote the current or previous word
+"\C-xq": "\eb\"\ef\""
+# Add a binding to refresh the line, which is unbound
+"\C-xr": redraw-current-line
+# Edit variable on current line.
+"\M-\C-v": "\C-a\C-k$\C-y\M-\C-e\C-a\C-y="
+$endif
+
+# use a visible bell if one is available
+set bell-style visible
+
+# don't strip characters to 7 bits when reading
+set input-meta on
+
+# allow iso-latin1 characters to be inserted rather than converted to
+# prefix-meta sequences
+set convert-meta off
+
+# display characters with the eighth bit set directly rather than
+# as meta-prefixed characters
+set output-meta on
+
+# if there are more than 150 possible completions for a word, ask the
+# user if he wants to see all of them
+set completion-query-items 150
+
+# For FTP
+$if Ftp
+"\C-xg": "get \M-?"
+"\C-xt": "put \M-?"
+"\M-.": yank-last-arg
+$endif
+@end example
+
+@node Bindable Readline Commands
+@section Bindable Readline Commands
+
+@menu
+* Commands For Moving::		Moving about the line.
+* Commands For History::	Getting at previous lines.
+* Commands For Text::		Commands for changing text.
+* Commands For Killing::	Commands for killing and yanking.
+* Numeric Arguments::		Specifying numeric arguments, repeat counts.
+* Commands For Completion::	Getting Readline to do the typing for you.
+* Keyboard Macros::		Saving and re-executing typed characters
+* Miscellaneous Commands::	Other miscellaneous commands.
+@end menu
+
+This section describes Readline commands that may be bound to key
+sequences.
+
+@node Commands For Moving
+@subsection Commands For Moving
+@ftable @code
+@item beginning-of-line (C-a)
+Move to the start of the current line.
+
+@item end-of-line (C-e)
+Move to the end of the line.
+
+@item forward-char (C-f)
+Move forward a character.
+
+@item backward-char (C-b)
+Move back a character.
+
+@item forward-word (M-f)
+Move forward to the end of the next word.  Words are composed of
+letters and digits.
+
+@item backward-word (M-b)
+Move back to the start of this, or the previous, word.  Words are
+composed of letters and digits.
+
+@item clear-screen (C-l)
+Clear the screen and redraw the current line,
+leaving the current line at the top of the screen.
+
+@item redraw-current-line ()
+Refresh the current line.  By default, this is unbound.
+
+@end ftable
+
+@node Commands For History
+@subsection Commands For Manipulating The History
+
+@ftable @code
+@item accept-line (Newline, Return)
+@ifset BashFeatures
+Accept the line regardless of where the cursor is.  If this line is
+non-empty, add it to the history list according to the setting of
+the @code{HISTCONTROL} and @code{HISTIGNORE} variables.
+If this line was a history line, then restore the history line to its
+original state.
+@end ifset
+@ifclear BashFeatures
+Accept the line regardless of where the cursor is.  If this line is
+non-empty, add it to the history list.  If this line was a history
+line, then restore the history line to its original state.
+@end ifclear
+
+@item previous-history (C-p)
+Move `up' through the history list.
+
+@item next-history (C-n)
+Move `down' through the history list.
+
+@item beginning-of-history (M-<)
+Move to the first line in the history.
+
+@item end-of-history (M->)
+Move to the end of the input history, i.e., the line currently
+being entered.
+
+@item reverse-search-history (C-r)
+Search backward starting at the current line and moving `up' through
+the history as necessary.  This is an incremental search.
+
+@item forward-search-history (C-s)
+Search forward starting at the current line and moving `down' through
+the the history as necessary.  This is an incremental search.
+
+@item non-incremental-reverse-search-history (M-p)
+Search backward starting at the current line and moving `up'
+through the history as necessary using a non-incremental search
+for a string supplied by the user.
+
+@item non-incremental-forward-search-history (M-n)
+Search forward starting at the current line and moving `down'
+through the the history as necessary using a non-incremental search
+for a string supplied by the user.
+
+@item history-search-forward ()
+Search forward through the history for the string of characters
+between the start of the current line and the current cursor
+position (the @var{point}).  This is a non-incremental search.  By
+default, this command is unbound.
+
+@item history-search-backward ()
+Search backward through the history for the string of characters
+between the start of the current line and the point.  This
+is a non-incremental search.  By default, this command is unbound.
+
+@item yank-nth-arg (M-C-y)
+Insert the first argument to the previous command (usually
+the second word on the previous line).  With an argument @var{n},
+insert the @var{n}th word from the previous command (the words
+in the previous command begin with word 0).  A negative argument
+inserts the @var{n}th word from the end of the previous command.
+
+@item yank-last-arg (M-., M-_)
+Insert last argument to the previous command (the last word of the
+previous history entry).  With an
+argument, behave exactly like @code{yank-nth-arg}.
+Successive calls to @code{yank-last-arg} move back through the history
+list, inserting the last argument of each line in turn.
+
+@end ftable
+
+@node Commands For Text
+@subsection Commands For Changing Text
+
+@ftable @code
+@item delete-char (C-d)
+Delete the character under the cursor.  If the cursor is at the
+beginning of the line, there are no characters in the line, and
+the last character typed was not bound to @code{delete-char}, then
+return @code{EOF}.
+
+@item backward-delete-char (Rubout)
+Delete the character behind the cursor.  A numeric argument means
+to kill the characters instead of deleting them.
+
+@item quoted-insert (C-q, C-v)
+Add the next character typed to the line verbatim.  This is
+how to insert key sequences like @key{C-q}, for example.
+
+@ifclear BashFeatures
+@item tab-insert (M-TAB)
+Insert a tab character.
+@end ifclear
+
+@item self-insert (a, b, A, 1, !, ...)
+Insert yourself.
+
+@item transpose-chars (C-t)
+Drag the character before the cursor forward over
+the character at the cursor, moving the
+cursor forward as well.  If the insertion point
+is at the end of the line, then this
+transposes the last two characters of the line.
+Negative arguments don't work.
+
+@item transpose-words (M-t)
+Drag the word behind the cursor past the word in front of the cursor
+moving the cursor over that word as well.
+
+@item upcase-word (M-u)
+Uppercase the current (or following) word.  With a negative argument,
+uppercase the previous word, but do not move the cursor.
+
+@item downcase-word (M-l)
+Lowercase the current (or following) word.  With a negative argument,
+lowercase the previous word, but do not move the cursor.
+
+@item capitalize-word (M-c)
+Capitalize the current (or following) word.  With a negative argument,
+capitalize the previous word, but do not move the cursor.
+
+@end ftable
+
+@node Commands For Killing
+@subsection Killing And Yanking
+
+@ftable @code
+
+@item kill-line (C-k)
+Kill the text from the current cursor position to the end of the line.
+
+@item backward-kill-line (C-x Rubout)
+Kill backward to the beginning of the line.
+
+@item unix-line-discard (C-u)
+Kill backward from the cursor to the beginning of the current line.
+The killed text is saved on the kill-ring.
+
+@item kill-whole-line ()
+Kill all characters on the current line, no matter where the
+cursor is.  By default, this is unbound.
+
+@item kill-word (M-d)
+Kill from the cursor to the end of the current word, or if between
+words, to the end of the next word.  Word boundaries are the same
+as @code{forward-word}.
+
+@item backward-kill-word (M-DEL)
+Kill the word behind the cursor.  Word boundaries are the same
+as @code{backward-word}.
+
+@item unix-word-rubout (C-w)
+Kill the word behind the cursor, using white space as a word
+boundary.  The killed text is saved on the kill-ring.
+
+@item delete-horizontal-space ()
+Delete all spaces and tabs around point.  By default, this is unbound.
+
+@item kill-region ()
+Kill the text between the point and the @emph{mark} (saved
+cursor position).  This text is referred to as the @var{region}.
+By default, this command is unbound.
+
+@item copy-region-as-kill ()
+Copy the text in the region to the kill buffer, so it can be yanked
+right away.  By default, this command is unbound.
+
+@item copy-backward-word ()
+Copy the word before point to the kill buffer.
+The word boundaries are the same as @code{backward-word}.
+By default, this command is unbound.
+
+@item copy-forward-word ()
+Copy the word following point to the kill buffer.
+The word boundaries are the same as @code{forward-word}.
+By default, this command is unbound.
+
+@item yank (C-y)
+Yank the top of the kill ring into the buffer at the current
+cursor position.
+
+@item yank-pop (M-y)
+Rotate the kill-ring, and yank the new top.  You can only do this if
+the prior command is yank or yank-pop.
+@end ftable
+
+@node Numeric Arguments
+@subsection Specifying Numeric Arguments
+@ftable @code
+
+@item digit-argument (M-0, M-1, ... M--)
+Add this digit to the argument already accumulating, or start a new
+argument.  @key{M--} starts a negative argument.
+
+@item universal-argument ()
+This is another way to specify an argument.
+If this command is followed by one or more digits, optionally with a
+leading minus sign, those digits define the argument.
+If the command is followed by digits, executing @code{universal-argument}
+again ends the numeric argument, but is otherwise ignored.
+As a special case, if this command is immediately followed by a
+character that is neither a digit or minus sign, the argument count
+for the next command is multiplied by four.
+The argument count is initially one, so executing this function the
+first time makes the argument count four, a second time makes the
+argument count sixteen, and so on.
+By default, this is not bound to a key.
+@end ftable
+
+@node Commands For Completion
+@subsection Letting Readline Type For You
+
+@ftable @code
+@item complete (TAB)
+Attempt to do completion on the text before the cursor.  This is
+application-specific.  Generally, if you are typing a filename
+argument, you can do filename completion; if you are typing a command,
+you can do command completion; if you are typing in a symbol to GDB, you
+can do symbol name completion; if you are typing in a variable to Bash,
+you can do variable name completion, and so on.
+@ifset BashFeatures
+Bash attempts completion treating the text as a variable (if the
+text begins with @samp{$}), username (if the text begins with
+@samp{~}), hostname (if the text begins with @samp{@@}), or
+command (including aliases and functions) in turn.  If none 
+of these produces a match, filename completion is attempted.
+@end ifset
+
+@item possible-completions (M-?)
+List the possible completions of the text before the cursor.
+
+@item insert-completions (M-*)
+Insert all completions of the text before point that would have
+been generated by @code{possible-completions}.
+
+@item menu-complete ()
+Similar to @code{complete}, but replaces the word to be completed
+with a single match from the list of possible completions.
+Repeated execution of @code{menu-complete} steps through the list
+of possible completions, inserting each match in turn.
+At the end of the list of completions, the bell is rung and the
+original text is restored.
+An argument of @var{n} moves @var{n} positions forward in the list
+of matches; a negative argument may be used to move backward
+through the list.
+This command is intended to be bound to @code{TAB}, but is unbound
+by default.
+
+@ifset BashFeatures
+@item complete-filename (M-/)
+Attempt filename completion on the text before point.
+
+@item possible-filename-completions (C-x /)
+List the possible completions of the text before point,
+treating it as a filename.
+
+@item complete-username (M-~)
+Attempt completion on the text before point, treating
+it as a username.
+
+@item possible-username-completions (C-x ~)
+List the possible completions of the text before point,
+treating it as a username.
+
+@item complete-variable (M-$)
+Attempt completion on the text before point, treating
+it as a shell variable.
+
+@item possible-variable-completions (C-x $)
+List the possible completions of the text before point,
+treating it as a shell variable.
+
+@item complete-hostname (M-@@)
+Attempt completion on the text before point, treating
+it as a hostname.
+
+@item possible-hostname-completions (C-x @@)
+List the possible completions of the text before point,
+treating it as a hostname.
+
+@item complete-command (M-!)
+Attempt completion on the text before point, treating
+it as a command name.  Command completion attempts to
+match the text against aliases, reserved words, shell
+functions, shell builtins, and finally executable filenames,
+in that order.
+
+@item possible-command-completions (C-x !)
+List the possible completions of the text before point,
+treating it as a command name.
+
+@item dynamic-complete-history (M-TAB)
+Attempt completion on the text before point, comparing
+the text against lines from the history list for possible
+completion matches.
+
+@item complete-into-braces (M-@{)
+Perform filename completion and return the list of possible completions
+enclosed within braces so the list is available to the shell
+(@pxref{Brace Expansion}).
+
+@end ifset
+@end ftable
+
+@node Keyboard Macros
+@subsection Keyboard Macros
+@ftable @code
+
+@item start-kbd-macro (C-x ()
+Begin saving the characters typed into the current keyboard macro.
+
+@item end-kbd-macro (C-x ))
+Stop saving the characters typed into the current keyboard macro
+and save the definition.
+
+@item call-last-kbd-macro (C-x e)
+Re-execute the last keyboard macro defined, by making the characters
+in the macro appear as if typed at the keyboard.
+
+@end ftable
+
+@node Miscellaneous Commands
+@subsection Some Miscellaneous Commands
+@ftable @code
+
+@item re-read-init-file (C-x C-r)
+Read in the contents of the inputrc file, and incorporate
+any bindings or variable assignments found there.
+
+@item abort (C-g)
+Abort the current editing command and
+ring the terminal's bell (subject to the setting of
+@code{bell-style}).
+
+@item do-uppercase-version (M-a, M-b, M-@var{x}, @dots{})
+If the metafied character @var{x} is lowercase, run the command
+that is bound to the corresponding uppercase character.
+
+@item prefix-meta (ESC)
+Make the next character typed be metafied.  This is for keyboards
+without a meta key.  Typing @samp{ESC f} is equivalent to typing
+@samp{M-f}.
+
+@item undo (C-_, C-x C-u)
+Incremental undo, separately remembered for each line.
+
+@item revert-line (M-r)
+Undo all changes made to this line.  This is like executing the @code{undo}
+command enough times to get back to the beginning.
+
+@item tilde-expand (M-~)
+Perform tilde expansion on the current word.
+
+@item set-mark (C-@@)
+Set the mark to the current point.  If a
+numeric argument is supplied, the mark is set to that position.
+
+@item exchange-point-and-mark (C-x C-x)
+Swap the point with the mark.  The current cursor position is set to
+the saved position, and the old cursor position is saved as the mark.
+
+@item character-search (C-])
+A character is read and point is moved to the next occurrence of that
+character.  A negative count searches for previous occurrences.
+
+@item character-search-backward (M-C-])
+A character is read and point is moved to the previous occurrence
+of that character.  A negative count searches for subsequent
+occurrences.
+
+@item insert-comment (M-#)
+The value of the @code{comment-begin}
+variable is inserted at the beginning of the current line,
+and the line is accepted as if a newline had been typed.
+@ifset BashFeatures
+This makes the current line a shell comment.
+@end ifset
+
+@item dump-functions ()
+Print all of the functions and their key bindings to the
+Readline output stream.  If a numeric argument is supplied,
+the output is formatted in such a way that it can be made part
+of an @var{inputrc} file.  This command is unbound by default.
+
+@item dump-variables ()
+Print all of the settable variables and their values to the
+Readline output stream.  If a numeric argument is supplied,
+the output is formatted in such a way that it can be made part
+of an @var{inputrc} file.  This command is unbound by default.
+
+@item dump-macros ()
+Print all of the Readline key sequences bound to macros and the
+strings they ouput.  If a numeric argument is supplied,
+the output is formatted in such a way that it can be made part
+of an @var{inputrc} file.  This command is unbound by default.
+
+@ifset BashFeatures
+@item glob-expand-word (C-x *)
+The word before point is treated as a pattern for pathname expansion,
+and the list of matching file names is inserted, replacing the word.
+
+@item glob-list-expansions (C-x g)
+The list of expansions that would have been generated by
+@code{glob-expand-word} is displayed, and the line is redrawn.
+
+@item display-shell-version (C-x C-v)
+Display version information about the current instance of Bash.
+
+@item shell-expand-line (M-C-e)
+Expand the line as the shell does.
+This performs alias and history expansion as well as all of the shell
+word expansions (@pxref{Shell Expansions}).
+
+@item history-expand-line (M-^)
+Perform history expansion on the current line.
+
+@item magic-space ()
+Perform history expansion on the current line and insert a space
+(@pxref{History Interaction}).
+
+@item alias-expand-line ()
+Perform alias expansion on the current line (@pxref{Aliases}).
+
+@item history-and-alias-expand-line ()
+Perform history and alias expansion on the current line.
+
+@item insert-last-argument (M-., M-_)
+A synonym for @code{yank-last-arg}.
+
+@item operate-and-get-next (C-o)
+Accept the current line for execution and fetch the next line
+relative to the current line from the history for editing.  Any
+argument is ignored.
+
+@item emacs-editing-mode (C-e)
+When in @code{vi} editing mode, this causes a switch back to
+@code{emacs} editing mode, as if the command @samp{set -o emacs} had
+been executed.
+
+@end ifset
+
+@end ftable
+
+@node Readline vi Mode
+@section Readline vi Mode
+
+While the Readline library does not have a full set of @code{vi}
+editing functions, it does contain enough to allow simple editing
+of the line.  The Readline @code{vi} mode behaves as specified in
+the @sc{POSIX} 1003.2 standard.
+
+@ifset BashFeatures
+In order to switch interactively between @code{emacs} and @code{vi}
+editing modes, use the @samp{set -o emacs} and @samp{set -o vi}
+commands (@pxref{The Set Builtin}).
+@end ifset
+@ifclear BashFeatures
+In order to switch interactively between @code{emacs} and @code{vi}
+editing modes, use the command M-C-j (toggle-editing-mode).
+@end ifclear
+The Readline default is @code{emacs} mode.
+
+When you enter a line in @code{vi} mode, you are already placed in
+`insertion' mode, as if you had typed an @samp{i}.  Pressing @key{ESC}
+switches you into `command' mode, where you can edit the text of the
+line with the standard @code{vi} movement keys, move to previous
+history lines with @samp{k} and subsequent lines with @samp{j}, and
+so forth.
diff --git a/readline/doc/texi2dvi b/readline/doc/texi2dvi
new file mode 100755
index 00000000000..00e154d0fe8
--- /dev/null
+++ b/readline/doc/texi2dvi
@@ -0,0 +1,275 @@
+#! /bin/sh
+# texi2dvi --- smartly produce DVI files from texinfo sources
+
+# Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+
+# $Id$
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, you can either send email to this
+# program's maintainer or write to: The Free Software Foundation,
+# Inc.; 59 Temple Place, Suite 330; Boston, MA 02111-1307, USA.
+
+# Commentary:
+
+# Author: Noah Friedman <friedman@prep.ai.mit.edu>
+
+# Please send bug reports, etc. to bug-texinfo@prep.ai.mit.edu
+# If possible, please send a copy of the output of the script called with
+# the `--debug' option when making a bug report.
+
+# In the interest of general portability, some common bourne shell
+# constructs were avoided because they weren't guaranteed to be available
+# in some earlier implementations.  I've tried to make this program as
+# portable as possible.  Welcome to unix, where the lowest common
+# denominator is rapidly diminishing.
+#
+# Among the more interesting lossages I noticed with some bourne shells
+# are:
+#     * No shell functions.
+#     * No `unset' builtin.
+#     * `shift' cannot take a numeric argument, and signals an error if
+#       there are no arguments to shift.
+
+# Code:
+
+# Name by which this script was invoked.
+progname=`echo "$0" | sed -e 's/[^\/]*\///g'`
+
+# This string is expanded by rcs automatically when this file is checked out.
+rcs_revision='$Revision$'
+version=`set - $rcs_revision; echo $2`
+
+# To prevent hairy quoting and escaping later.
+bq='`'
+eq="'"
+
+usage="Usage: $progname {options} [file1] {file2 {...}}
+(version $version)
+
+Options are:
+-D, --debug          Turn on shell debugging ($bq${bq}set -x$eq$eq).
+-h, --help           You're looking at it.
+-v, --version        Print version number.
+
+Arguments in brackets are required.  Those in braces are optional.
+"
+
+# Initialize variables.
+# Don't use `unset' since old bourne shells don't have this command.
+# Instead, assign them an empty value.
+# Some of these, like TEX and TEXINDEX, may be inherited from the environment
+backup_extension=.bak
+debug=
+orig_pwd="`pwd`"
+verbose=
+texindex="${TEXINDEX-texindex}"
+tex="${TEX-tex}"
+
+# Save this so we can construct a new TEXINPUTS path for each file to be
+# processed.
+TEXINPUTS_orig="$TEXINPUTS"
+export TEXINPUTS
+
+# Parse command line arguments.
+# Make sure that all wildcarded options are long enough to be unambiguous.
+# It's a good idea to document the full long option name in each case.
+# Long options which take arguments will need a `*' appended to the
+# canonical name to match the value appended after the `=' character.
+while : ; do
+  case $# in 0) break ;; esac
+  case "$1" in
+    -D | --debug | --d* )
+      debug=t
+      shift
+     ;;
+    -h | --help | --h* )
+      echo "$usage" 1>&2
+      exit 0
+     ;;
+    -v | --version | --v* )
+      echo "texi2dvi version $version" 1>&2
+      exit 0
+     ;;
+    -- )     # Stop option processing
+      shift
+      break
+     ;;
+    -* )
+      case "$1" in
+        --*=* ) arg=`echo "$1" | sed -e 's/=.*//'` ;;
+        * )     arg="$1" ;;
+      esac
+      exec 1>&2
+      echo "$progname: unknown or ambiguous option $bq$arg$eq"
+      echo "$progname: Use $bq--help$eq for a list of options."
+      exit 1
+     ;;
+    * )
+      break
+     ;;
+   esac
+done
+
+# See if there are any command line args left (which will be interpreted as
+# filename arguments)
+case $# in
+  0 )
+    exec 1>&2
+    echo "$progname: at least one file name is required as an argument."
+    echo "$progname: Use $bq--help$eq for a description of command syntax."
+    exit 2
+   ;;
+esac
+
+case "$debug" in t ) set -x ;; esac
+
+# Texify files
+for command_line_filename in ${1+"$@"} ; do
+   # Roughly equivalent to `dirname ...`, but more portable
+   directory="`echo ${command_line_filename} | sed 's/\/[^\/]*$//'`"
+   filename_texi="`basename ${command_line_filename}`"
+   # Strip off the last extension part (probably .texinfo or .texi)
+   filename_noext="`echo ${filename_texi} | sed 's/\.[^.]*$//'`"
+
+   # If directory and file are the same, then it's probably because there's
+   # no pathname component.  Set dirname to `.', the current directory.
+   if test "z${directory}" = "z${command_line_filename}" ; then
+      directory="."
+   fi
+
+   # Source file might @include additional texinfo sources.  Put `.' and
+   # directory where source file(s) reside in TEXINPUTS before anything
+   # else.  `.' goes first to ensure that any old .aux, .cps, etc. files in
+   # ${directory} don't get used in preference to fresher files in `.'.
+   TEXINPUTS=".:${directory}:${TEXINPUTS_orig}"
+
+   # "Unset" variables that might have values from previous iterations and
+   # which won't be completely reset later.
+   definite_index_files=""
+
+   # See if file exists here.  If it doesn't we're in trouble since, even
+   # though the user may be able to reenter a valid filename at the tex
+   # prompt (assuming they're attending the terminal), this script won't be
+   # able to find the right index files and so forth.
+   if test ! -r "${command_line_filename}" ; then
+      echo "${progname}: ${command_line_filename}: No such file or permission denied." 1>&2
+      continue;
+   fi
+
+   # Find all files having root filename with a two-letter extension,
+   # determine whether they're really index files, and save them.  Foo.aux
+   # is actually the cross-references file, but we need to keep track of
+   # that too.
+   possible_index_files="`eval echo ${filename_noext}.?? ${filename_noext}.aux`"
+   for this_file in ${possible_index_files} ; do
+      # If file is empty, forget it.
+      if test ! -s "${this_file}" ; then
+         continue;
+      fi
+
+      # Examine first character of file.  If it's not a backslash or
+      # single quote, then it's definitely not an index or xref file.
+      first_character="`sed -n '1s/^\(.\).*$/\1/p;q' ${this_file}`"
+      if test "${first_character}" = "\\" -o "${first_character}" = "'" ; then
+         definite_index_files="${definite_index_files} ${this_file}"
+      fi
+   done
+   orig_index_files="${definite_index_files}"
+   orig_index_files_sans_aux="`echo ${definite_index_files} \
+                                | sed 's/'${filename_noext}'\.aux//;
+                                       s/^[ ]*//;s/[ ]*$//;'`"
+
+   # Now save copies of original index files so we have some means of
+   # comparison later.
+   for index_file_to_save in ${orig_index_files} ; do
+       cp "${index_file_to_save}" "${index_file_to_save}${backup_extension}"
+   done
+
+   # Run texindex on current index files.  If they already exist, and
+   # after running TeX a first time the index files don't change, then
+   # there's no reason to run TeX again.  But we won't know that if the
+   # index files are out of date or nonexistent.
+   if test "${orig_index_files_sans_aux}" ; then
+      ${texindex} ${orig_index_files_sans_aux}
+   fi
+
+   if ${tex} ${command_line_filename} ; then		# TeX run first time
+      definite_index_files=""
+      # Get list of new index files
+      possible_index_files="`eval echo ${filename_noext}.?? ${filename_noext}.aux`"
+      for this_file in ${possible_index_files} ; do
+         # If file is empty, forget it.
+         if test ! -s ${this_file} ; then
+            continue;
+         fi
+
+         # Examine first character of file.  If it's not a backslash or
+         # single quote, then it's definitely not an index or xref file.
+         first_character="`sed -n '1s/^\(.\).*$/\1/p;q' ${this_file}`"
+         if test "${first_character}" = "\\" -o "${first_character}" = "'" ; then
+            definite_index_files="${definite_index_files} ${this_file}"
+         fi
+      done
+      new_index_files="${definite_index_files}"
+      new_index_files_sans_aux="`echo ${definite_index_files} \
+                                  | sed 's/'${filename_noext}'\.aux//;
+                                         s/^[ ]*//;s/[ ]*$//;'`"
+
+      # If old and new list don't at least have the same file list, then one
+      # file or another has definitely changed.
+      if test "${orig_index_files}" != "${new_index_files}" ; then
+         index_files_changed_p=t
+      else
+         # File list is the same.  We must compare each file until we find a
+         # difference.
+         index_files_changed_p=""
+         for this_file in ${new_index_files} ; do
+            # cmp -s will return nonzero exit status if files differ.
+            cmp -s "${this_file}" "${this_file}${backup_extension}"
+            if test $? -ne 0  ; then
+               # We only need to keep comparing until we find *one* that
+               # differs, because we'll have to run texindex & tex no
+               # matter what.
+               index_files_changed_p=t
+               break
+            fi
+         done
+      fi
+
+      # If index files have changed since TeX has been run, or if the aux
+      # file wasn't present originally, run texindex and TeX again.
+      if test "${index_files_changed_p}"  ; then
+         retval=0
+         if test "${new_index_files_sans_aux}" ; then
+            ${texindex} ${new_index_files_sans_aux}
+            retval=$?
+         fi
+         if test ${retval} -eq 0 ; then
+            ${tex} "${command_line_filename}"
+         fi
+      fi
+   fi
+
+   # Generate list of files to delete, then call rm once with the entire
+   # list.  This is significantly faster than multiple executions of rm.
+   file_list=""
+   for file in ${orig_index_files} ; do
+       file_list="${file_list} ${file}${backup_extension}"
+   done
+   if test "${file_list}" ; then
+      rm -f ${file_list}
+   fi
+done
+
+# texi2dvi ends here
diff --git a/readline/doc/texi2html b/readline/doc/texi2html
new file mode 100755
index 00000000000..cc751785493
--- /dev/null
+++ b/readline/doc/texi2html
@@ -0,0 +1,2021 @@
+#!/usr/bin/perl
+'di ';
+'ig 00 ';
+#+##############################################################################
+#                                                                              #
+# File: texi2html                                                              #
+#                                                                              #
+# Description: Program to transform most Texinfo documents to HTML             #
+#                                                                              #
+#-##############################################################################
+
+# @(#)texi2html	1.51 09/10/96	Written (mainly) by Lionel Cons, Lionel.Cons@cern.ch
+
+# The man page for this program is included at the end of this file and can be
+# viewed using the command 'nroff -man texi2html'.
+# Please read the copyright at the end of the man page.
+
+#+++############################################################################
+#                                                                              #
+# Constants                                                                    #
+#                                                                              #
+#---############################################################################
+
+$DEBUG_TOC   =  1;
+$DEBUG_INDEX =  2;
+$DEBUG_BIB   =  4;
+$DEBUG_GLOSS =  8;
+$DEBUG_DEF   = 16;
+$DEBUG_HTML  = 32;
+$DEBUG_USER  = 64;
+
+$BIBRE = '\[[\w\/]+\]';			# RE for a bibliography reference
+$FILERE = '[\/\w.+-]+';			# RE for a file name
+$VARRE = '[^\s\{\}]+';			# RE for a variable name
+$NODERE = '[^@{}:\'`",]+';		# RE for a node name
+$NODESRE = '[^@{}:\'`"]+';		# RE for a list of node names
+$XREFRE = '[^@{}]+';			# RE for a xref (should use NODERE)
+
+$ERROR = "***";			        # prefix for errors and warnings
+$THISPROG = "texi2html 1.51";			# program name and version
+$HOMEPAGE = "http://wwwcn.cern.ch/dci/texi2html/"; # program home page
+$TODAY = &pretty_date;			# like "20 September 1993"
+$SPLITTAG = "<!-- SPLIT HERE -->\n";	# tag to know where to split
+$PROTECTTAG = "_ThisIsProtected_";	# tag to recognize protected sections
+$html2_doctype = '<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0 Strict Level 2//EN">';
+
+#
+# language dependent constants
+#
+#$LDC_SEE = 'see';
+#$LDC_SECTION = 'section';
+#$LDC_IN = 'in';
+#$LDC_TOC = 'Table of Contents';
+#$LDC_GOTO = 'Go to the';
+#$LDC_FOOT = 'Footnotes';
+# TODO: @def* shortcuts
+
+#
+# pre-defined indices
+#
+%predefined_index = (
+		    'cp', 'c',
+		    'fn', 'f',
+		    'vr', 'v',
+		    'ky', 'k',
+		    'pg', 'p',
+		    'tp', 't',
+	            );
+
+#
+# valid indices
+#
+%valid_index = (
+		    'c', 1,
+		    'f', 1,
+		    'v', 1,
+		    'k', 1,
+		    'p', 1,
+		    't', 1,
+		);
+
+#
+# texinfo section names to level
+#
+%sec2level = (
+	      'top', 0,
+	      'chapter', 1,
+	      'unnumbered', 1,
+	      'majorheading', 1,
+	      'chapheading', 1,
+	      'appendix', 1,
+	      'section', 2,
+	      'unnumberedsec', 2,
+	      'heading', 2,
+	      'appendixsec', 2,
+	      'appendixsection', 2,
+	      'subsection', 3,
+	      'unnumberedsubsec', 3,
+	      'subheading', 3,
+	      'appendixsubsec', 3,
+	      'subsubsection', 4,
+	      'unnumberedsubsubsec', 4,
+	      'subsubheading', 4,
+	      'appendixsubsubsec', 4,
+	      );
+
+#
+# accent map, TeX command to ISO name
+#
+%accent_map = (
+	       '"',  'uml',
+	       '~',  'tilde',
+	       '^',  'circ',
+	       '`',  'grave',
+	       '\'', 'acute',
+	       );
+
+#
+# texinfo "simple things" (@foo) to HTML ones
+#
+%simple_map = (
+	       # cf. makeinfo.c
+	       "*", "<BR>",		# HTML+
+	       " ", " ",
+	       "\n", "\n",
+	       "|", "",
+	       # spacing commands
+	       ":", "",
+	       "!", "!",
+	       "?", "?",
+	       ".", ".",
+	       );
+
+#
+# texinfo "things" (@foo{}) to HTML ones
+#
+%things_map = (
+	       'TeX', 'TeX',
+	       'br', '<P>',		# paragraph break
+	       'bullet', '*',
+	       'copyright', '(C)',
+	       'dots', '...',
+	       'equiv', '==',
+	       'error', 'error-->',
+	       'expansion', '==>',
+	       'minus', '-',
+	       'point', '-!-',
+	       'print', '-|',
+	       'result', '=>',
+	       'today', $TODAY,
+	       );
+
+#
+# texinfo styles (@foo{bar}) to HTML ones
+#
+%style_map = (
+	      'asis', '',
+	      'b', 'B',
+	      'cite', 'CITE',
+	      'code', 'CODE',
+	      'ctrl', '&do_ctrl',	# special case
+	      'dfn', 'STRONG',		# DFN tag is illegal in the standard
+	      'dmn', '',		# useless
+	      'emph', 'EM',
+	      'file', '"TT',		# will put quotes, cf. &apply_style
+	      'i', 'I',
+	      'kbd', 'KBD',
+	      'key', 'KBD',
+	      'r', '',			# unsupported
+	      'samp', '"SAMP',		# will put quotes, cf. &apply_style
+	      'sc', '&do_sc',		# special case
+	      'strong', 'STRONG',
+	      't', 'TT',
+	      'titlefont', '',		# useless
+	      'var', 'VAR',
+	      'w', '',			# unsupported
+	      );
+
+#
+# texinfo format (@foo/@end foo) to HTML ones
+#
+%format_map = (
+	       'display', 'PRE',
+	       'example', 'PRE',
+	       'format', 'PRE',
+	       'lisp', 'PRE',
+	       'quotation', 'BLOCKQUOTE',
+	       'smallexample', 'PRE',
+	       'smalllisp', 'PRE',
+	       # lists
+	       'itemize', 'UL',
+	       'enumerate', 'OL',
+	       # poorly supported
+	       'flushleft', 'PRE',
+	       'flushright', 'PRE',
+	       );
+
+#
+# texinfo definition shortcuts to real ones
+#
+%def_map = (
+	    # basic commands
+	    'deffn', 0,
+	    'defvr', 0,
+	    'deftypefn', 0,
+	    'deftypevr', 0,
+	    'defcv', 0,
+	    'defop', 0,
+	    'deftp', 0,
+	    # basic x commands
+	    'deffnx', 0,
+	    'defvrx', 0,
+	    'deftypefnx', 0,
+	    'deftypevrx', 0,
+	    'defcvx', 0,
+	    'defopx', 0,
+	    'deftpx', 0,
+	    # shortcuts
+	    'defun', 'deffn Function',
+	    'defmac', 'deffn Macro',
+	    'defspec', 'deffn {Special Form}',
+	    'defvar', 'defvr Variable',
+	    'defopt', 'defvr {User Option}',
+	    'deftypefun', 'deftypefn Function',
+	    'deftypevar', 'deftypevr Variable',
+	    'defivar', 'defcv {Instance Variable}',
+	    'defmethod', 'defop Method',
+	    # x shortcuts
+	    'defunx', 'deffnx Function',
+	    'defmacx', 'deffnx Macro',
+	    'defspecx', 'deffnx {Special Form}',
+	    'defvarx', 'defvrx Variable',
+	    'defoptx', 'defvrx {User Option}',
+	    'deftypefunx', 'deftypefnx Function',
+	    'deftypevarx', 'deftypevrx Variable',
+	    'defivarx', 'defcvx {Instance Variable}',
+	    'defmethodx', 'defopx Method',
+	    );
+
+#
+# things to skip
+#
+%to_skip = (
+	    # comments
+	    'c', 1,
+	    'comment', 1,
+	    # useless
+	    'contents', 1,
+	    'shortcontents', 1,
+	    'summarycontents', 1,
+	    'footnotestyle', 1,
+	    'end ifclear', 1,
+	    'end ifset', 1,
+	    'titlepage', 1,
+	    'end titlepage', 1,
+	    # unsupported commands (formatting)
+	    'afourpaper', 1,
+	    'cropmarks', 1,
+	    'finalout', 1,
+	    'headings', 1,
+	    'need', 1,
+	    'page', 1,
+	    'setchapternewpage', 1,
+	    'everyheading', 1,
+	    'everyfooting', 1,
+	    'evenheading', 1,
+	    'evenfooting', 1,
+	    'oddheading', 1,
+	    'oddfooting', 1,
+	    'smallbook', 1,
+	    'vskip', 1,
+	    'filbreak', 1,
+	    # unsupported formats
+	    'cartouche', 1,
+	    'end cartouche', 1,
+	    'group', 1,
+	    'end group', 1,
+	    );
+
+#+++############################################################################
+#                                                                              #
+# Argument parsing, initialisation                                             #
+#                                                                              #
+#---############################################################################
+
+$use_bibliography = 1;
+$use_acc = 0;
+$debug = 0;
+$doctype = '';
+$check = 0;
+$expandinfo = 0;
+$use_glossary = 0;
+$invisible_mark = '';
+$use_iso = 0;
+@include_dirs = ();
+$show_menu = 0;
+$number_sections = 0;
+$split_node = 0;
+$split_chapter = 0;
+$monolithic = 0;
+$verbose = 0;
+$usage = <<EOT;
+This is $THISPROG
+To convert a Texinfo file to HMTL: $0 [options] file
+  where options can be:
+    -expandinfo    : use \@ifinfo sections, not \@iftex
+    -glossary      : handle a glossary
+    -invisible name: use 'name' as an invisible anchor
+    -I dir         : search also for files in 'dir'
+    -menu          : handle menus
+    -monolithic    : output only one file including ToC
+    -number        : number sections
+    -split_chapter : split on main sections
+    -split_node    : split on nodes
+    -usage         : print usage instructions
+    -verbose       : verbose output
+To check converted files: $0 -check [-verbose] files
+EOT
+
+while ($#ARGV >= 0 && $ARGV[0] =~ /^-/) {
+    $_ = shift(@ARGV);
+    if (/^-acc$/)            { $use_acc = 1; next; }
+    if (/^-d(ebug)?(\d+)?$/) { $debug = $2 || shift(@ARGV); next; }
+    if (/^-doctype$/)        { $doctype = shift(@ARGV); next; }
+    if (/^-c(heck)?$/)       { $check = 1; next; }
+    if (/^-e(xpandinfo)?$/)  { $expandinfo = 1; next; }
+    if (/^-g(lossary)?$/)    { $use_glossary = 1; next; }
+    if (/^-i(nvisible)?$/)   { $invisible_mark = shift(@ARGV); next; }
+    if (/^-iso$/)            { $use_iso = 1; next; }
+    if (/^-I(.+)?$/)         { push(@include_dirs, $1 || shift(@ARGV)); next; }
+    if (/^-m(enu)?$/)        { $show_menu = 1; next; }
+    if (/^-mono(lithic)?$/)  { $monolithic = 1; next; }
+    if (/^-n(umber)?$/)      { $number_sections = 1; next; }
+    if (/^-s(plit)?_?(n(ode)?|c(hapter)?)?$/) {
+	if ($2 =~ /^n/) {
+	    $split_node = 1;
+	} else {
+	    $split_chapter = 1;
+	}
+	next;
+    }
+    if (/^-v(erbose)?$/)     { $verbose = 1; next; }
+    die $usage;
+}
+if ($check) {
+    die $usage unless @ARGV > 0;
+    &check;
+    exit;
+}
+
+if (($split_node || $split_chapter) && $monolithic) {
+    warn "Can't use -monolithic with -split, -monolithic ignored.\n";
+    $monolithic = 0;
+}
+if ($expandinfo) {
+    $to_skip{'ifinfo'}++;
+    $to_skip{'end ifinfo'}++;
+} else {
+    $to_skip{'iftex'}++;
+    $to_skip{'end iftex'}++;
+}
+$invisible_mark = '<IMG SRC="invisible.xbm">' if $invisible_mark eq 'xbm';
+die $usage unless @ARGV == 1;
+$docu = shift(@ARGV);
+if ($docu =~ /.*\//) {
+    chop($docu_dir = $&);
+    $docu_name = $';
+} else {
+    $docu_dir = '.';
+    $docu_name = $docu;
+}
+unshift(@include_dirs, $docu_dir);
+$docu_name =~ s/\.te?x(i|info)?$//;	# basename of the document
+
+$docu_doc = "$docu_name.html";		# document's contents
+if ($monolithic) {
+    $docu_toc = $docu_foot = $docu_doc;
+} else {
+    $docu_toc  = "${docu_name}_toc.html";  # document's table of contents
+    $docu_foot = "${docu_name}_foot.html"; # document's footnotes
+}
+
+#
+# variables
+#
+%value = ();				# hold texinfo variables
+$value{'html'} = 1;			# predefine html (the output format)
+$value{'texi2html'} = '1.51';		# predefine texi2html (the translator)
+# _foo: internal to track @foo
+foreach ('_author', '_title', '_subtitle',
+	 '_settitle', '_setfilename') {
+    $value{$_} = '';		        # prevent -w warnings
+}
+%node2sec = ();				# node to section name
+%node2href = ();			# node to HREF
+%bib2href = ();				# bibliography reference to HREF
+%gloss2href = ();			# glossary term to HREF
+@sections = ();				# list of sections
+%tag2pro = ();				# protected sections
+
+#
+# initial indexes
+#
+$bib_num = 0;
+$foot_num = 0;
+$gloss_num = 0;
+$idx_num = 0;
+$sec_num = 0;
+$doc_num = 0;
+$html_num = 0;
+
+#
+# can I use ISO8879 characters? (HTML+)
+#
+if ($use_iso) {
+    $things_map{'bullet'} = "&bull;";
+    $things_map{'copyright'} = "&copy;";
+    $things_map{'dots'} = "&hellip;";
+    $things_map{'equiv'} = "&equiv;";
+    $things_map{'expansion'} = "&rarr;";
+    $things_map{'point'} = "&lowast;";
+    $things_map{'result'} = "&rArr;";
+}
+
+#
+# read texi2html extensions (if any)
+#
+$extensions = 'texi2html.ext'; # extensions in working directory
+if (-f $extensions) {
+    print "# reading extensions from $extensions\n" if $verbose;
+    require($extensions);
+}
+($progdir = $0) =~ s/[^\/]+$//;
+if ($progdir && ($progdir ne './')) {
+    $extensions = "${progdir}texi2html.ext"; # extensions in texi2html directory
+    if (-f $extensions) {
+	print "# reading extensions from $extensions\n" if $verbose;
+	require($extensions);
+    }
+}
+
+print "# reading from $docu\n" if $verbose;
+
+#+++############################################################################
+#                                                                              #
+# Pass 1: read source, handle command, variable, simple substitution           #
+#                                                                              #
+#---############################################################################
+
+@lines = ();				# whole document
+@toc_lines = ();			# table of contents
+$toplevel = 0;			        # top level seen in hierarchy
+$curlevel = 0;				# current level in TOC
+$node = '';				# current node name
+$in_table = 0;				# am I inside a table
+$table_type = '';			# type of table ('', 'f', 'v')
+@tables = ();			        # nested table support
+$in_bibliography = 0;			# am I inside a bibliography
+$in_glossary = 0;			# am I inside a glossary
+$in_top = 0;				# am I inside the top node
+$in_pre = 0;				# am I inside a preformatted section
+$in_list = 0;				# am I inside a list
+$in_html = 0;				# am I inside an HTML section
+$first_line = 1;		        # is it the first line
+$dont_html = 0;				# don't protect HTML on this line
+$split_num = 0;				# split index
+$deferred_ref = '';			# deferred reference for indexes
+@html_stack = ();			# HTML elements stack
+$html_element = '';			# current HTML element
+&html_reset;
+
+# build code for simple substitutions
+# the maps used (%simple_map and %things_map) MUST be aware of this
+# watch out for regexps, / and escaped characters!
+$subst_code = '';
+foreach (keys(%simple_map)) {
+    ($re = $_) =~ s/(\W)/\\$1/g; # protect regexp chars
+    $subst_code .= "s/\\\@$re/$simple_map{$_}/g;\n";
+}
+foreach (keys(%things_map)) {
+    $subst_code .= "s/\\\@$_\\{\\}/$things_map{$_}/g;\n";
+}
+if ($use_acc) {
+    # accentuated characters
+    foreach (keys(%accent_map)) {
+	if ($_ eq "`") {
+	    $subst_code .= "s/$;3";
+	} elsif ($_ eq "'") {
+	    $subst_code .= "s/$;4";
+	} else {
+	    $subst_code .= "s/\\\@\\$_";
+	}
+	$subst_code .= "([aeiou])/&\${1}$accent_map{$_};/gi;\n";
+    }
+}
+eval("sub simple_substitutions { $subst_code }");
+
+&init_input;
+while ($_ = &next_line) {
+    #
+    # remove \input on the first lines only
+    #
+    if ($first_line) {
+	next if /^\\input/;
+	$first_line = 0;
+    }
+    #
+    # parse texinfo tags
+    #
+    $tag = '';
+    $end_tag = '';
+    if (/^\@end\s+(\w+)\b/) {
+	$end_tag = $1;
+    } elsif (/^\@(\w+)\b/) {
+	$tag = $1;
+    }
+    #
+    # handle @ifhtml / @end ifhtml
+    #
+    if ($in_html) {
+	if ($end_tag eq 'ifhtml') {
+	    $in_html = 0;
+	} else {
+	    $tag2pro{$in_html} .= $_;
+	}
+	next;
+    } elsif ($tag eq 'ifhtml') {
+	$in_html = $PROTECTTAG . ++$html_num;
+	push(@lines, $in_html);
+	next;
+    }
+    #
+    # try to skip the line
+    #
+    if ($end_tag) {
+	next if $to_skip{"end $end_tag"};
+    } elsif ($tag) {
+	next if $to_skip{$tag};
+	last if $tag eq 'bye';
+    }
+    if ($in_top) {
+	# parsing the top node
+	if ($tag eq 'node' || $tag eq 'include' || $sec2level{$tag}) {
+	    # no more in top
+	    $in_top = 0;
+	} else {
+	    # skip it
+	    next;
+	}
+    }
+    #
+    # try to remove inlined comments
+    # syntax from tex-mode.el comment-start-skip
+    #
+    s/((^|[^\@])(\@\@)*)\@c(omment)? .*/$1/;
+    # non-@ substitutions cf. texinfmt.el
+    s/``/\"/g;
+    s/''/\"/g;
+    s/([\w ])---([\w ])/$1--$2/g;
+    #
+    # analyze the tag
+    #
+    if ($tag) {
+	# skip lines
+	&skip_until($tag), next if $tag eq 'ignore';
+	if ($expandinfo) {
+	    &skip_until($tag), next if $tag eq 'iftex';
+	} else {
+	    &skip_until($tag), next if $tag eq 'ifinfo';
+	}
+	&skip_until($tag), next if $tag eq 'tex';
+	# handle special tables
+	if ($tag eq 'table') {
+	    $table_type = '';
+	} elsif ($tag eq 'ftable') {
+	    $tag = 'table';
+	    $table_type = 'f';
+	} elsif ($tag eq 'vtable') {
+	    $tag = 'table';
+	    $table_type = 'v';
+	}
+	# special cases
+	if ($tag eq 'top' || ($tag eq 'node' && /^\@node\s+top\s*,/i)) {
+	    $in_top = 1;
+	    @lines = (); # ignore all lines before top (title page garbage)
+	    next;
+	} elsif ($tag eq 'node') {
+	    $in_top = 0;
+	    warn "$ERROR Bad node line: $_" unless $_ =~ /^\@node\s$NODESRE$/o;
+	    $_ = &protect_html($_); # if node contains '&' for instance
+	    s/^\@node\s+//;
+	    ($node) = split(/,/);
+	    &normalise_node($node);
+	    if ($split_node) {
+		&next_doc;
+		push(@lines, $SPLITTAG) if $split_num++;
+		push(@sections, $node);
+	    }
+	    next;
+	} elsif ($tag eq 'include') {
+	    if (/^\@include\s+($FILERE)\s*$/o) {
+		$file = $1;
+		unless (-e $file) {
+		    foreach $dir (@include_dirs) {
+			$file = "$dir/$1";
+			last if -e $file;
+		    }
+		}
+		if (-e $file) {
+		    &open($file);
+		    print "# including $file\n" if $verbose;
+		} else {
+		    warn "$ERROR Can't find $file, skipping";
+		}
+	    } else {
+		warn "$ERROR Bad include line: $_";
+	    }
+	    next;
+	} elsif ($tag eq 'ifclear') {
+	    if (/^\@ifclear\s+($VARRE)\s*$/o) {
+		next unless defined($value{$1});
+		&skip_until($tag);
+	    } else {
+		warn "$ERROR Bad ifclear line: $_";
+	    }
+	    next;
+	} elsif ($tag eq 'ifset') {
+	    if (/^\@ifset\s+($VARRE)\s*$/o) {
+		next if defined($value{$1});
+		&skip_until($tag);
+	    } else {
+		warn "$ERROR Bad ifset line: $_";
+	    }
+	    next;
+	} elsif ($tag eq 'menu') {
+	    unless ($show_menu) {
+		&skip_until($tag);
+		next;
+	    }
+	    &html_push_if($tag);
+	    push(@lines, &html_debug("\n", __LINE__));
+	} elsif ($format_map{$tag}) {
+	    $in_pre = 1 if $format_map{$tag} eq 'PRE';
+	    &html_push_if($format_map{$tag});
+	    push(@lines, &html_debug("\n", __LINE__));
+	    $in_list++ if $format_map{$tag} eq 'UL' || $format_map{$tag} eq 'OL' ;
+	    push(@lines, &debug("<$format_map{$tag}>\n", __LINE__));
+	    next;
+	} elsif ($tag eq 'table') {
+	    if (/^\@[fv]?table\s+\@(\w+)\s*$/) {
+		$in_table = $1;
+		unshift(@tables, join($;, $table_type, $in_table));
+		push(@lines, &debug("<DL COMPACT>\n", __LINE__));
+		&html_push_if('DL');
+		push(@lines, &html_debug("\n", __LINE__));
+	    } else {
+		warn "$ERROR Bad table line: $_";
+	    }
+	    next;
+	} elsif ($tag eq 'synindex' || $tag eq 'syncodeindex') {
+	    if (/^\@$tag\s+(\w)\w\s+(\w)\w\s*$/) {
+		eval("*${1}index = *${2}index");
+	    } else {
+		warn "$ERROR Bad syn*index line: $_";
+	    }
+	    next;
+	} elsif ($tag eq 'sp') {
+	    push(@lines, &debug("<P>\n", __LINE__));
+	    next;
+	} elsif ($tag eq 'setref') {
+	    &protect_html; # if setref contains '&' for instance
+	    if (/^\@$tag\s*{($NODERE)}\s*$/) {
+		$setref = $1;
+		$setref =~ s/\s+/ /g; # normalize
+		$setref =~ s/ $//;
+		$node2sec{$setref} = $name;
+		$node2href{$setref} = "$docu_doc#$docid";
+	    } else {
+		warn "$ERROR Bad setref line: $_";
+	    }
+	    next;
+	} elsif ($tag eq 'defindex' || $tag eq 'defcodeindex') {
+	    if (/^\@$tag\s+(\w\w)\s*$/) {
+		$valid_index{$1} = 1;
+	    } else {
+		warn "$ERROR Bad defindex line: $_";
+	    }
+	    next;
+	} elsif (defined($def_map{$tag})) {
+	    if ($def_map{$tag}) {
+		s/^\@$tag\s+//;
+		$tag = $def_map{$tag};
+		$_ = "\@$tag $_";
+		$tag =~ s/\s.*//;
+	    }
+	} elsif (defined($user_sub{$tag})) {
+	    s/^\@$tag\s+//;
+	    $sub = $user_sub{$tag};
+	    print "# user $tag = $sub, arg: $_" if $debug & $DEBUG_USER;
+	    if (defined(&$sub)) {
+		chop($_);
+		&$sub($_);
+	    } else {
+		warn "$ERROR Bad user sub for $tag: $sub\n";
+	    }
+	    next;
+	}
+	if (defined($def_map{$tag})) {
+	    s/^\@$tag\s+//;
+	    if ($tag =~ /x$/) {
+		# extra definition line
+		$tag = $`;
+		$is_extra = 1;
+	    } else {
+		$is_extra = 0;
+	    }
+	    while (/\{([^\{\}]*)\}/) {
+		# this is a {} construct
+		($before, $contents, $after) = ($`, $1, $');
+		# protect spaces
+		$contents =~ s/\s+/$;9/g;
+		# restore $_ protecting {}
+		$_ = "$before$;7$contents$;8$after";
+	    }
+	    @args = split(/\s+/, &protect_html($_));
+	    foreach (@args) {
+		s/$;9/ /g;	# unprotect spaces
+		s/$;7/\{/g;	# ... {
+		s/$;8/\}/g;	# ... }
+	    }
+	    $type = shift(@args);
+	    $type =~ s/^\{(.*)\}$/$1/;
+	    print "# def ($tag): {$type} ", join(', ', @args), "\n"
+		if $debug & $DEBUG_DEF;
+	    $type .= ':'; # it's nicer like this
+	    $name = shift(@args);
+	    $name =~ s/^\{(.*)\}$/$1/;
+	    if ($is_extra) {
+		$_ = &debug("<DT>", __LINE__);
+	    } else {
+		$_ = &debug("<DL>\n<DT>", __LINE__);
+	    }
+	    if ($tag eq 'deffn' || $tag eq 'defvr' || $tag eq 'deftp') {
+		$_ .= "<U>$type</U> <B>$name</B>";
+		$_ .= " <I>@args</I>" if @args;
+	    } elsif ($tag eq 'deftypefn' || $tag eq 'deftypevr'
+		     || $tag eq 'defcv' || $tag eq 'defop') {
+		$ftype = $name;
+		$name = shift(@args);
+		$name =~ s/^\{(.*)\}$/$1/;
+		$_ .= "<U>$type</U> $ftype <B>$name</B>";
+		$_ .= " <I>@args</I>" if @args;
+	    } else {
+		warn "$ERROR Unknown definition type: $tag\n";
+		$_ .= "<U>$type</U> <B>$name</B>";
+		$_ .= " <I>@args</I>" if @args;
+	    }
+ 	    $_ .= &debug("\n<DD>", __LINE__);
+	    $name = &unprotect_html($name);
+	    if ($tag eq 'deffn' || $tag eq 'deftypefn') {
+		unshift(@input_spool, "\@findex $name\n");
+	    } elsif ($tag eq 'defop') {
+		unshift(@input_spool, "\@findex $name on $ftype\n");
+	    } elsif ($tag eq 'defvr' || $tag eq 'deftypevr' || $tag eq 'defcv') {
+		unshift(@input_spool, "\@vindex $name\n");
+	    } else {
+		unshift(@input_spool, "\@tindex $name\n");
+	    }
+	    $dont_html = 1;
+	}
+    } elsif ($end_tag) {
+	if ($format_map{$end_tag}) {
+	    $in_pre = 0 if $format_map{$end_tag} eq 'PRE';
+	    $in_list-- if $format_map{$end_tag} eq 'UL' || $format_map{$end_tag} eq 'OL' ;
+	    &html_pop_if('LI', 'P');
+	    &html_pop_if();
+	    push(@lines, &debug("</$format_map{$end_tag}>\n", __LINE__));
+	    push(@lines, &html_debug("\n", __LINE__));
+	} elsif ($end_tag eq 'table' ||
+		 $end_tag eq 'ftable' ||
+		 $end_tag eq 'vtable') {
+	    shift(@tables);
+	    if (@tables) {
+		($table_type, $in_table) = split($;, $tables[0]);
+	    } else {
+		$in_table = 0;
+	    }
+	    push(@lines, "</DL>\n");
+	    &html_pop_if('DD');
+	    &html_pop_if();
+	} elsif (defined($def_map{$end_tag})) {
+ 	    push(@lines, &debug("</DL>\n", __LINE__));
+	} elsif ($end_tag eq 'menu') {
+	    &html_pop_if();
+	    push(@lines, $_); # must keep it for pass 2
+	}
+	next;
+    }
+    #
+    # misc things
+    #
+    # protect texi and HTML things
+    &protect_texi;
+    $_ = &protect_html($_) unless $dont_html;
+    $dont_html = 0;
+    # substitution (unsupported things)
+    s/^\@center\s+//g;
+    s/^\@exdent\s+//g;
+    s/\@noindent\s+//g;
+    s/\@refill\s+//g;
+    # other substitutions
+    &simple_substitutions;
+    s/\@value{($VARRE)}/$value{$1}/eg;
+    s/\@footnote\{/\@footnote$docu_doc\{/g; # mark footnotes, cf. pass 4
+    #
+    # analyze the tag again
+    #
+    if ($tag) {
+	if (defined($sec2level{$tag}) && $sec2level{$tag} > 0) {
+	    if (/^\@$tag\s+(.+)$/) {
+		$name = $1;
+		$name =~ s/\s+$//;
+		$level = $sec2level{$tag};
+		$name = &update_sec_num($tag, $level) . "  $name"
+		    if $number_sections && $tag !~ /^unnumbered/;
+		if ($tag =~ /heading$/) {
+		    push(@lines, &html_debug("\n", __LINE__));
+		    if ($html_element ne 'body') {
+			# We are in a nice pickle here. We are trying to get a H? heading
+			# even though we are not in the body level. So, we convert it to a
+			# nice, bold, line by itself.
+			$_ = &debug("\n\n<P><STRONG>$name</STRONG></P>\n\n", __LINE__);
+		    } else {
+			$_ = &debug("<H$level>$name</H$level>\n", __LINE__);
+			&html_push_if('body');
+		    }
+		    print "# heading, section $name, level $level\n"
+			if $debug & $DEBUG_TOC;
+		} else {
+		    if ($split_chapter) {
+			unless ($toplevel) {
+			    # first time we see a "section"
+			    unless ($level == 1) {
+				warn "$ERROR The first section found is not of level 1: $_";
+				warn "$ERROR I'll split on sections of level $level...\n";
+			    }
+			    $toplevel = $level;
+			}
+			if ($level == $toplevel) {
+			    &next_doc;
+			    push(@lines, $SPLITTAG) if $split_num++;
+			    push(@sections, $name);
+			}
+		    }
+		    $sec_num++;
+		    $docid = "SEC$sec_num";
+		    $tocid = "TOC$sec_num";
+		    # check biblio and glossary
+		    $in_bibliography = ($name =~ /^([A-Z]|\d+)?(\.\d+)*\s*bibliography$/i);
+		    $in_glossary = ($name =~ /^([A-Z]|\d+)?(\.\d+)*\s*glossary$/i);
+		    # check node
+		    if ($node) {
+			if ($node2sec{$node}) {
+			    warn "$ERROR Duplicate node found: $node\n";
+			} else {
+			    $node2sec{$node} = $name;
+			    $node2href{$node} = "$docu_doc#$docid";
+			    print "# node $node, section $name, level $level\n"
+				if $debug & $DEBUG_TOC;
+			}
+			$node = '';
+		    } else {
+			print "# no node, section $name, level $level\n"
+			    if $debug & $DEBUG_TOC;
+		    }
+		    # update TOC
+		    while ($level > $curlevel) {
+			$curlevel++;
+			push(@toc_lines, "<UL>\n");
+		    }
+		    while ($level < $curlevel) {
+			$curlevel--;
+			push(@toc_lines, "</UL>\n");
+		    }
+		    $_ = "<LI>" . &anchor($tocid, "$docu_doc#$docid", $name, 1);
+		    push(@toc_lines, &substitute_style($_));
+		    # update DOC
+		    push(@lines, &html_debug("\n", __LINE__));
+		    &html_reset;
+		    $_ =  "<H$level>".&anchor($docid, "$docu_toc#$tocid", $name)."</H$level>\n";
+		    $_ = &debug($_, __LINE__);
+		    push(@lines, &html_debug("\n", __LINE__));
+		}
+		# update DOC
+		foreach $line (split(/\n+/, $_)) {
+		    push(@lines, "$line\n");
+		}
+		next;
+	    } else {
+		warn "$ERROR Bad section line: $_";
+	    }
+	} else {
+	    # track variables
+	    $value{$1} = $2, next if /^\@set\s+($VARRE)\s+(.*)$/o;
+	    delete $value{$1}, next if /^\@clear\s+($VARRE)\s*$/o;
+	    # store things
+	    $value{'_setfilename'}   = $1, next if /^\@setfilename\s+(.*)$/;
+	    $value{'_settitle'}      = $1, next if /^\@settitle\s+(.*)$/;
+	    $value{'_author'}   .= "$1\n", next if /^\@author\s+(.*)$/;
+	    $value{'_subtitle'} .= "$1\n", next if /^\@subtitle\s+(.*)$/;
+	    $value{'_title'}    .= "$1\n", next if /^\@title\s+(.*)$/;
+	    # index
+	    if (/^\@(..?)index\s+/) {
+		unless ($valid_index{$1}) {
+		    warn "$ERROR Undefined index command: $_";
+		    next;
+		}
+		$id = 'IDX' . ++$idx_num;
+		$index = $1 . 'index';
+		$what = &substitute_style($');
+		$what =~ s/\s+$//;
+		print "# found $index for '$what' id $id\n"
+		    if $debug & $DEBUG_INDEX;
+		eval(<<EOC);
+		if (defined(\$$index\{\$what\})) {
+		    \$$index\{\$what\} .= "$;$docu_doc#$id";
+		} else {
+		    \$$index\{\$what\} = "$docu_doc#$id";
+		}
+EOC
+		#
+		# dirty hack to see if I can put an invisible anchor...
+		#
+		if ($html_element eq 'P' ||
+		    $html_element eq 'LI' ||
+		    $html_element eq 'DT' ||
+		    $html_element eq 'DD' ||
+		    $html_element eq 'ADDRESS' ||
+		    $html_element eq 'B' ||
+		    $html_element eq 'BLOCKQUOTE' ||
+		    $html_element eq 'PRE' ||
+		    $html_element eq 'SAMP') {
+                    push(@lines, &anchor($id, '', $invisible_mark, !$in_pre));
+                } elsif ($html_element eq 'body') {
+		    push(@lines, &debug("<P>\n", __LINE__));
+                    push(@lines, &anchor($id, '', $invisible_mark, !$in_pre));
+		    &html_push('P');
+		} elsif ($html_element eq 'DL' ||
+			 $html_element eq 'UL' ||
+			 $html_element eq 'OL' ) {
+		    $deferred_ref .= &anchor($id, '', $invisible_mark, !$in_pre) . " ";
+		}
+		next;
+	    }
+	    # list item
+	    if (/^\@itemx?\s+/) {
+		$what = $';
+		$what =~ s/\s+$//;
+		if ($in_bibliography && $use_bibliography) {
+		    if ($what =~ /^$BIBRE$/o) {
+			$id = 'BIB' . ++$bib_num;
+			$bib2href{$what} = "$docu_doc#$id";
+			print "# found bibliography for '$what' id $id\n"
+			    if $debug & $DEBUG_BIB;
+			$what = &anchor($id, '', $what);
+		    }
+		} elsif ($in_glossary && $use_glossary) {
+		    $id = 'GLOSS' . ++$gloss_num;
+		    $entry = $what;
+		    $entry =~ tr/A-Z/a-z/ unless $entry =~ /^[A-Z\s]+$/;
+		    $gloss2href{$entry} = "$docu_doc#$id";
+		    print "# found glossary for '$entry' id $id\n"
+			if $debug & $DEBUG_GLOSS;
+		    $what = &anchor($id, '', $what);
+		}
+		&html_pop_if('P');
+		if ($html_element eq 'DL' || $html_element eq 'DD') {
+		    if ($things_map{$in_table} && !$what) {
+			# special case to allow @table @bullet for instance
+			push(@lines, &debug("<DT>$things_map{$in_table}\n", __LINE__));
+		    } else {
+			push(@lines, &debug("<DT>\@$in_table\{$what\}\n", __LINE__));
+		    }
+		    push(@lines, "<DD>");
+		    &html_push('DD') unless $html_element eq 'DD';
+		    if ($table_type) { # add also an index
+			unshift(@input_spool, "\@${table_type}index $what\n");
+		    }
+		} else {
+		    push(@lines, &debug("<LI>$what\n", __LINE__));
+		    &html_push('LI') unless $html_element eq 'LI';
+		}
+		push(@lines, &html_debug("\n", __LINE__));
+		if ($deferred_ref) {
+		    push(@lines, &debug("$deferred_ref\n", __LINE__));
+		    $deferred_ref = '';
+		}
+		next;
+	    }
+	}
+    }
+    # paragraph separator
+    if ($_ eq "\n") {
+	next if $#lines >= 0 && $lines[$#lines] eq "\n";
+	if ($html_element eq 'P') {
+	    push(@lines, "\n");
+	    $_ = &debug("</P>\n", __LINE__);
+	    &html_pop;
+	}
+    } elsif ($html_element eq 'body' || $html_element eq 'BLOCKQUOTE') {
+	push(@lines, "<P>\n");
+	&html_push('P');
+	$_ = &debug($_, __LINE__);
+    }
+    # otherwise
+    push(@lines, $_);
+}
+
+# finish TOC
+$level = 0;
+while ($level < $curlevel) {
+    $curlevel--;
+    push(@toc_lines, "</UL>\n");
+}
+
+print "# end of pass 1\n" if $verbose;
+
+#+++############################################################################
+#                                                                              #
+# Pass 2/3: handle style, menu, index, cross-reference                         #
+#                                                                              #
+#---############################################################################
+
+@lines2 = ();				# whole document (2nd pass)
+@lines3 = ();				# whole document (3rd pass)
+$in_menu = 0;				# am I inside a menu
+
+while (@lines) {
+    $_ = shift(@lines);
+    #
+    # special case (protected sections)
+    #
+    if (/^$PROTECTTAG/o) {
+	push(@lines2, $_);
+	next;
+    }
+    #
+    # menu
+    #
+    $in_menu = 1, push(@lines2, &debug("<UL>\n", __LINE__)), next if /^\@menu\b/;
+    $in_menu = 0, push(@lines2, &debug("</UL>\n", __LINE__)), next if /^\@end\s+menu\b/;
+    if ($in_menu) {
+	if (/^\*\s+($NODERE)::/o) {
+	    $descr = $';
+	    chop($descr);
+	    &menu_entry($1, $1, $descr);
+	} elsif (/^\*\s+(.+):\s+([^\t,\.\n]+)[\t,\.\n]/) {
+	    $descr = $';
+	    chop($descr);
+	    &menu_entry($1, $2, $descr);
+	} elsif (/^\*/) {
+	    warn "$ERROR Bad menu line: $_";
+	} else { # description continued?
+	    push(@lines2, $_);
+	}
+	next;
+    }
+    #
+    # printindex
+    #
+    if (/^\@printindex\s+(\w\w)\b/) {
+	local($index, *ary, @keys, $key, $letter, $last_letter, @refs);
+	if ($predefined_index{$1}) {
+	    $index = $predefined_index{$1} . 'index';
+	} else {
+	    $index = $1 . 'index';
+	}
+	eval("*ary = *$index");
+	@keys = keys(%ary);
+	foreach $key (@keys) {
+	    $_ = $key;
+	    1 while s/<(\w+)>\`(.*)\'<\/\1>/$2/; # remove HTML tags with quotes
+	    1 while s/<(\w+)>(.*)<\/\1>/$2/;     # remove HTML tags
+	    $_ = &unprotect_html($_);
+	    &unprotect_texi;
+	    tr/A-Z/a-z/; # lowercase
+	    $key2alpha{$key} = $_;
+	    print "# index $key sorted as $_\n"
+		if $key ne $_ && $debug & $DEBUG_INDEX;
+	}
+	$last_letter = undef;
+	foreach $key (sort byalpha @keys) {
+	    $letter = substr($key2alpha{$key}, 0, 1);
+	    $letter = substr($key2alpha{$key}, 0, 2) if $letter eq $;;
+	    if (!defined($last_letter) || $letter ne $last_letter) {
+		push(@lines2, "</DIR>\n") if defined($last_letter);
+		push(@lines2, "<H2>" . &protect_html($letter) . "</H2>\n");
+		push(@lines2, "<DIR>\n");
+		$last_letter = $letter;
+	    }
+	    @refs = ();
+	    foreach (split(/$;/, $ary{$key})) {
+		push(@refs, &anchor('', $_, $key, 0));
+	    }
+	    push(@lines2, "<LI>" . join(", ", @refs) . "\n");
+	}
+	push(@lines2, "</DIR>\n") if defined($last_letter);
+	next;
+    }
+    #
+    # simple style substitutions
+    #
+    $_ = &substitute_style($_);
+    #
+    # xref
+    #
+    while (/\@(x|px|info|)ref{($XREFRE)(}?)/o) {
+	# note: Texinfo may accept other characters
+	($type, $nodes, $full) = ($1, $2, $3);
+	($before, $after) = ($`, $');
+	if (! $full && $after) {
+	    warn "$ERROR Bad xref (no ending } on line): $_";
+	    $_ = "$before$;0${type}ref\{$nodes$after";
+	    next; # while xref
+	}
+	if ($type eq 'x') {
+	    $type = 'See ';
+	} elsif ($type eq 'px') {
+	    $type = 'see ';
+	} elsif ($type eq 'info') {
+	    $type = 'See Info';
+	} else {
+	    $type = '';
+	}
+	unless ($full) {
+	    $next = shift(@lines);
+	    $next = &substitute_style($next);
+	    chop($nodes); # remove final newline
+	    if ($next =~ /\}/) { # split on 2 lines
+		$nodes .= " $`";
+		$after = $';
+	    } else {
+		$nodes .= " $next";
+		$next = shift(@lines);
+		$next = &substitute_style($next);
+		chop($nodes);
+		if ($next =~ /\}/) { # split on 3 lines
+		    $nodes .= " $`";
+		    $after = $';
+		} else {
+		    warn "$ERROR Bad xref (no ending }): $_";
+		    $_ = "$before$;0xref\{$nodes$after";
+		    unshift(@lines, $next);
+		    next; # while xref
+		}
+	    }
+	}
+	$nodes =~ s/\s+/ /g; # remove useless spaces
+	@args = split(/\s*,\s*/, $nodes);
+	$node = $args[0]; # the node is always the first arg
+	&normalise_node($node);
+	$sec = $node2sec{$node};
+	if (@args == 5) { # reference to another manual
+	    $sec = $args[2] || $node;
+	    $man = $args[4] || $args[3];
+	    $_ = "${before}${type}section `$sec' in \@cite{$man}$after";
+	} elsif ($type =~ /Info/) { # inforef
+	    warn "$ERROR Wrong number of arguments: $_" unless @args == 3;
+	    ($nn, $_, $in) = @args;
+	    $_ = "${before}${type} file `$in', node `$nn'$after";
+	} elsif ($sec) {
+	    $href = $node2href{$node};
+	    $_ = "${before}${type}section " . &anchor('', $href, $sec) . $after;
+	} else {
+	    warn "$ERROR Undefined node ($node): $_";
+	    $_ = "$before$;0xref{$nodes}$after";
+	}
+    }
+    #
+    # try to guess bibliography references or glossary terms
+    #
+    unless (/^<H\d><A NAME=\"SEC\d/) {
+	if ($use_bibliography) {
+	    $done = '';
+	    while (/$BIBRE/o) {
+		($pre, $what, $post) = ($`, $&, $');
+		$href = $bib2href{$what};
+		if (defined($href) && $post !~ /^[^<]*<\/A>/) {
+		    $done .= $pre . &anchor('', $href, $what);
+		} else {
+		    $done .= "$pre$what";
+		}
+		$_ = $post;
+	    }
+	    $_ = $done . $_;
+	}
+	if ($use_glossary) {
+	    $done = '';
+	    while (/\b\w+\b/) {
+		($pre, $what, $post) = ($`, $&, $');
+		$entry = $what;
+		$entry =~ tr/A-Z/a-z/ unless $entry =~ /^[A-Z\s]+$/;
+		$href = $gloss2href{$entry};
+		if (defined($href) && $post !~ /^[^<]*<\/A>/) {
+		    $done .= $pre . &anchor('', $href, $what);
+		} else {
+		    $done .= "$pre$what";
+		}
+		$_ = $post;
+	    }
+	    $_ = $done . $_;
+	}
+    }
+    # otherwise
+    push(@lines2, $_);
+}
+print "# end of pass 2\n" if $verbose;
+
+#
+# split style substitutions
+#
+while (@lines2) {
+    $_ = shift(@lines2);
+    #
+    # special case (protected sections)
+    #
+    if (/^$PROTECTTAG/o) {
+	push(@lines3, $_);
+	next;
+    }
+    #
+    # split style substitutions
+    #
+    $old = '';
+    while ($old ne $_) {
+        $old = $_;
+	if (/\@(\w+)\{/) {
+	    ($before, $style, $after) = ($`, $1, $');
+	    if (defined($style_map{$style})) {
+		$_ = $after;
+		$text = '';
+		$after = '';
+		$failed = 1;
+		while (@lines2) {
+		    if (/\}/) {
+			$text .= $`;
+			$after = $';
+			$failed = 0;
+			last;
+		    } else {
+			$text .= $_;
+			$_ = shift(@lines2);
+		    }
+		}
+		if ($failed) {
+		    die "* Bad syntax (\@$style) after: $before\n";
+		} else {
+		    $text = &apply_style($style, $text);
+		    $_ = "$before$text$after";
+		}
+	    }
+	}
+    }
+    # otherwise
+    push(@lines3, $_);
+}
+print "# end of pass 3\n" if $verbose;
+
+#+++############################################################################
+#                                                                              #
+# Pass 4: foot notes, final cleanup                                            #
+#                                                                              #
+#---############################################################################
+
+@foot_lines = ();			# footnotes
+@doc_lines = ();			# final document
+$end_of_para = 0;			# true if last line is <P>
+
+while (@lines3) {
+    $_ = shift(@lines3);
+    #
+    # special case (protected sections)
+    #
+    if (/^$PROTECTTAG/o) {
+	push(@doc_lines, $_);
+	$end_of_para = 0;
+	next;
+    }
+    #
+    # footnotes
+    #
+    while (/\@footnote([^\{\s]+)\{/) {
+	($before, $d, $after) = ($`, $1, $');
+	$_ = $after;
+	$text = '';
+	$after = '';
+	$failed = 1;
+	while (@lines3) {
+	    if (/\}/) {
+		$text .= $`;
+		$after = $';
+		$failed = 0;
+		last;
+	    } else {
+		$text .= $_;
+		$_ = shift(@lines3);
+	    }
+	}
+	if ($failed) {
+	    die "* Bad syntax (\@footnote) after: $before\n";
+	} else {
+	    $foot_num++;
+	    $docid  = "DOCF$foot_num";
+	    $footid = "FOOT$foot_num";
+	    $foot = "($foot_num)";
+	    push(@foot_lines, "<H3>" . &anchor($footid, "$d#$docid", $foot) . "</H3>\n");
+	    $text = "<P>$text" unless $text =~ /^\s*<P>/;
+	    push(@foot_lines, "$text\n");
+	    $_ = $before . &anchor($docid, "$docu_foot#$footid", $foot) . $after;
+	}
+    }
+    #
+    # remove unnecessary <P>
+    #
+    if (/^\s*<P>\s*$/) {
+	next if $end_of_para++;
+    } else {
+	$end_of_para = 0;
+    }
+    # otherwise
+    push(@doc_lines, $_);
+}
+print "# end of pass 4\n" if $verbose;
+
+#+++############################################################################
+#                                                                              #
+# Pass 5: print things                                                         #
+#                                                                              #
+#---############################################################################
+
+$header = <<EOT;
+<!-- This HTML file has been created by $THISPROG
+     from $docu on $TODAY -->
+EOT
+
+$full_title = $value{'_title'} || $value{'_settitle'} || "Untitled Document";
+$title = $value{'_settitle'} || $full_title;
+$_ = &substitute_style($full_title);
+&unprotect_texi;
+s/\n$//; # rmv last \n (if any)
+$full_title = "<H1>" . join("</H1>\n<H1>", split(/\n/, $_)) . "</H1>\n";
+
+#
+# print ToC
+#
+if (!$monolithic && @toc_lines) {
+    if (open(FILE, "> $docu_toc")) {
+	print "# creating $docu_toc...\n" if $verbose;
+	&print_toplevel_header("$title - Table of Contents");
+	&print_ruler;
+	&print(*toc_lines, FILE);
+	&print_toplevel_footer;
+	close(FILE);
+    } else {
+	warn "$ERROR Can't write to $docu_toc: $!\n";
+    }
+}
+
+#
+# print footnotes
+#
+if (!$monolithic && @foot_lines) {
+    if (open(FILE, "> $docu_foot")) {
+	print "# creating $docu_foot...\n" if $verbose;
+	&print_toplevel_header("$title - Footnotes");
+	&print_ruler;
+        &print(*foot_lines, FILE);
+	&print_toplevel_footer;
+	close(FILE);
+    } else {
+	warn "$ERROR Can't write to $docu_foot: $!\n";
+    }
+}
+
+#
+# print document
+#
+if ($split_chapter || $split_node) { # split
+    $doc_num = 0;
+    $last_num = scalar(@sections);
+    $first_doc = &doc_name(1);
+    $last_doc = &doc_name($last_num);
+    while (@sections) {
+	$section = shift(@sections);
+	&next_doc;
+	if (open(FILE, "> $docu_doc")) {
+	    print "# creating $docu_doc...\n" if $verbose;
+	    &print_header("$title - $section");
+	    $prev_doc = ($doc_num == 1 ? undef : &doc_name($doc_num - 1));
+	    $next_doc = ($doc_num == $last_num ? undef : &doc_name($doc_num + 1));
+	    $navigation = "Go to the ";
+	    $navigation .= ($prev_doc ? &anchor('', $first_doc, "first") : "first");
+	    $navigation .= ", ";
+	    $navigation .= ($prev_doc ? &anchor('', $prev_doc, "previous") : "previous");
+	    $navigation .= ", ";
+	    $navigation .= ($next_doc ? &anchor('', $next_doc, "next") : "next");
+	    $navigation .= ", ";
+	    $navigation .= ($next_doc ? &anchor('', $last_doc, "last") : "last");
+	    $navigation .= " section, " . &anchor('', $docu_toc, "table of contents") . ".\n";
+	    print FILE $navigation;
+	    &print_ruler;
+	    # find corresponding lines
+            @tmp_lines = ();
+            while (@doc_lines) {
+		$_ = shift(@doc_lines);
+		last if ($_ eq $SPLITTAG);
+		push(@tmp_lines, $_);
+	    }
+            &print(*tmp_lines, FILE);
+	    &print_ruler;
+	    print FILE $navigation;
+	    &print_footer;
+	    close(FILE);
+	} else {
+	    warn "$ERROR Can't write to $docu_doc: $!\n";
+	}
+    }
+} else { # not split
+    if (open(FILE, "> $docu_doc")) {
+	print "# creating $docu_doc...\n" if $verbose;
+	if ($monolithic || !@toc_lines) {
+	    &print_toplevel_header($title);
+	} else {
+	    &print_header($title);
+	    print FILE $full_title;
+	}
+	if ($monolithic && @toc_lines) {
+	    &print_ruler;
+ 	    print FILE "<H1>Table of Contents</H1>\n";
+ 	    &print(*toc_lines, FILE);
+	}
+	&print_ruler;
+        &print(*doc_lines, FILE);
+	if ($monolithic && @foot_lines) {
+	    &print_ruler;
+ 	    print FILE "<H1>Footnotes</H1>\n";
+ 	    &print(*foot_lines, FILE);
+	}
+	if ($monolithic || !@toc_lines) {
+	    &print_toplevel_footer;
+	} else {
+	    &print_footer;
+	}
+	close(FILE);
+    } else {
+	warn "$ERROR Can't write to $docu_doc: $!\n";
+    }
+}
+
+print "# that's all folks\n" if $verbose;
+
+#+++############################################################################
+#                                                                              #
+# Low level functions                                                          #
+#                                                                              #
+#---############################################################################
+
+sub update_sec_num {
+    local($name, $level) = @_;
+
+    $level--; # here we start at 0
+    if ($name =~ /^appendix/) {
+	# appendix style
+	if (defined(@appendix_sec_num)) {
+	    &incr_sec_num($level, @appendix_sec_num);
+	} else {
+	    @appendix_sec_num = ('A', 0, 0, 0);
+	}
+	return(join('.', @appendix_sec_num[0..$level]));
+    } else {
+	# normal style
+	if (defined(@normal_sec_num)) {
+	    &incr_sec_num($level, @normal_sec_num);
+	} else {
+	    @normal_sec_num = (1, 0, 0, 0);
+	}
+	return(join('.', @normal_sec_num[0..$level]));
+    }
+}
+
+sub incr_sec_num {
+    local($level, $l);
+    $level = shift(@_);
+    $_[$level]++;
+    foreach $l ($level+1 .. 3) {
+	$_[$l] = 0;
+    }
+}
+
+sub check {
+    local($_, %seen, %context, $before, $match, $after);
+
+    while (<>) {
+	if (/\@(\*|\.|\:|\@|\{|\})/) {
+	    $seen{$&}++;
+	    $context{$&} .= "> $_" if $verbose;
+	    $_ = "$`XX$'";
+	    redo;
+	}
+	if (/\@(\w+)/) {
+	    ($before, $match, $after) = ($`, $&, $');
+	    if ($before =~ /\b[\w-]+$/ && $after =~ /^[\w-.]*\b/) { # e-mail address
+		$seen{'e-mail address'}++;
+		$context{'e-mail address'} .= "> $_" if $verbose;
+	    } else {
+		$seen{$match}++;
+		$context{$match} .= "> $_" if $verbose;
+	    }
+	    $match =~ s/^\@/X/;
+	    $_ = "$before$match$after";
+	    redo;
+	}
+    }
+    
+    foreach (sort(keys(%seen))) {
+	if ($verbose) {
+	    print "$_\n";
+	    print $context{$_};
+	} else {
+	    print "$_ ($seen{$_})\n";
+	}
+    }
+}
+
+sub open {
+    local($name) = @_;
+
+    ++$fh_name;
+    if (open($fh_name, $name)) {
+	unshift(@fhs, $fh_name);
+    } else {
+	warn "$ERROR Can't read file $name: $!\n";
+    }
+}
+
+sub init_input {
+    @fhs = ();			# hold the file handles to read
+    @input_spool = ();		# spooled lines to read
+    $fh_name = 'FH000';
+    &open($docu);
+}
+
+sub next_line {
+    local($fh, $line);
+
+    if (@input_spool) {
+	$line = shift(@input_spool);
+	return($line);
+    }
+    while (@fhs) {
+	$fh = $fhs[0];
+	$line = <$fh>;
+	return($line) if $line;
+	close($fh);
+	shift(@fhs);
+    }
+    return(undef);
+}
+
+# used in pass 1, use &next_line
+sub skip_until {
+    local($tag) = @_;
+    local($_);
+
+    while ($_ = &next_line) {
+	return if /^\@end\s+$tag\s*$/;
+    }
+    die "* Failed to find '$tag' after: " . $lines[$#lines];
+}
+
+#
+# HTML stacking to have a better HTML output
+#
+
+sub html_reset {
+    @html_stack = ('html');
+    $html_element = 'body';
+}
+
+sub html_push {
+    local($what) = @_;
+    push(@html_stack, $html_element);
+    $html_element = $what;
+}
+
+sub html_push_if {
+    local($what) = @_;
+    push(@html_stack, $html_element)
+	if ($html_element && $html_element ne 'P');
+    $html_element = $what;
+}
+
+sub html_pop {
+    $html_element = pop(@html_stack);
+}
+
+sub html_pop_if {
+    local($elt);
+
+    if (@_) {
+	foreach $elt (@_) {
+	    if ($elt eq $html_element) {
+		$html_element = pop(@html_stack) if @html_stack;
+		last;
+	    }
+	}
+    } else {
+	$html_element = pop(@html_stack) if @html_stack;
+    }
+}
+
+sub html_debug {
+    local($what, $line) = @_;
+    return("<!-- $line @html_stack, $html_element -->$what")
+	if $debug & $DEBUG_HTML;
+    return($what);
+}
+
+# to debug the output...
+sub debug {
+    local($what, $line) = @_;
+    return("<!-- $line -->$what")
+	if $debug & $DEBUG_HTML;
+    return($what);
+}
+
+sub normalise_node {
+    $_[0] =~ s/\s+/ /g;
+    $_[0] =~ s/ $//;
+    $_[0] =~ s/^ //;
+}
+
+sub menu_entry {
+    local($entry, $node, $descr) = @_;
+    local($href);
+
+    &normalise_node($node);
+    $href = $node2href{$node};
+    if ($href) {
+	$descr =~ s/^\s+//;
+	$descr = ": $descr" if $descr;
+	push(@lines2, "<LI>" . &anchor('', $href, $entry) . "$descr\n");
+    } else {
+	warn "$ERROR Undefined node ($node): $_";
+    }
+}
+
+sub do_ctrl { "^$_[0]" }
+
+sub do_sc { "\U$_[0]\E" }
+
+sub apply_style {
+    local($texi_style, $text) = @_;
+    local($style);
+
+    $style = $style_map{$texi_style};
+    if (defined($style)) { # known style
+	if ($style =~ /^\"/) { # add quotes
+	    $style = $';
+	    $text = "\`$text\'";
+	}
+	if ($style =~ /^\&/) { # custom
+	    $style = $';
+	    $text = &$style($text);
+	} elsif ($style) { # good style
+	    $text = "<$style>$text</$style>";
+	} else { # no style
+	}
+    } else { # unknown style
+	$text = undef;
+    }
+    return($text);
+}
+
+# remove Texinfo styles
+sub remove_style {
+    local($_) = @_;
+    s/\@\w+{([^\{\}]+)}/$1/g;
+    return($_);
+}
+
+sub substitute_style {
+    local($_) = @_;
+    local($changed, $done, $style, $text);
+
+    $changed = 1;
+    while ($changed) {
+	$changed = 0;
+	$done = '';
+	while (/\@(\w+){([^\{\}]+)}/) {
+	    $text = &apply_style($1, $2);
+	    if ($text) {
+		$_ = "$`$text$'";
+		$changed = 1;
+	    } else {
+		$done .= "$`\@$1";
+		$_ = "{$2}$'";
+	    }
+	}
+        $_ = $done . $_;
+    }
+    return($_);
+}
+
+sub anchor {
+    local($name, $href, $text, $newline) = @_;
+    local($result);
+
+    $result = "<A";
+    $result .= " NAME=\"$name\"" if $name;
+    $result .= " HREF=\"$href\"" if $href;
+    $result .= ">$text</A>";
+    $result .= "\n" if $newline;
+    return($result);
+}
+
+sub pretty_date {
+    local(@MoY, $sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst);
+
+    @MoY = ('January', 'Febuary', 'March', 'April', 'May', 'June',
+	    'July', 'August', 'September', 'October', 'November', 'December');
+    ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) = localtime(time);
+    $year += ($year < 70) ? 2000 : 1900;
+    return("$mday $MoY[$mon] $year");
+}
+
+sub doc_name {
+    local($num) = @_;
+
+    return("${docu_name}_$num.html");
+}
+
+sub next_doc {
+    $docu_doc = &doc_name(++$doc_num);
+}
+
+sub print {
+    local(*lines, $fh) = @_;
+    local($_);
+
+    while (@lines) {
+	$_ = shift(@lines);
+	if (/^$PROTECTTAG/o) {
+	    $_ = $tag2pro{$_};
+	} else {
+	    &unprotect_texi;
+	}
+	print $fh $_;
+    }
+}
+
+sub print_ruler {
+    print FILE "<P><HR><P>\n";
+}
+
+sub print_header {
+    local($_);
+
+    # clean the title
+    $_ = &remove_style($_[0]);
+    &unprotect_texi;
+    # print the header
+    if ($doctype eq 'html2') {
+	print FILE $html2_doctype;
+    } elsif ($doctype) {
+	print FILE $doctype;
+    }
+    print FILE <<EOT;
+<HTML>
+<HEAD>
+$header
+<TITLE>$_</TITLE>
+</HEAD>
+<BODY>
+EOT
+}
+
+sub print_toplevel_header {
+    local($_);
+
+    &print_header; # pass given arg...
+    print FILE $full_title;
+    if ($value{'_subtitle'}) {
+	$value{'_subtitle'} =~ s/\n+$//;
+	foreach (split(/\n/, $value{'_subtitle'})) {
+	    $_ = &substitute_style($_);
+	    &unprotect_texi;
+	    print FILE "<H2>$_</H2>\n";
+	}
+    }
+    if ($value{'_author'}) {
+	$value{'_author'} =~ s/\n+$//;
+	foreach (split(/\n/, $value{'_author'})) {
+	    $_ = &substitute_style($_);
+	    &unprotect_texi;
+	    s/[\w.-]+\@[\w.-]+/<A HREF="mailto:$&">$&<\/A>/g;
+	    print FILE "<ADDRESS>$_</ADDRESS>\n";
+	}
+    }
+    print FILE "<P>\n";
+}
+
+sub print_footer {
+    print FILE <<EOT;
+</BODY>
+</HTML>
+EOT
+}
+
+sub print_toplevel_footer {
+    &print_ruler;
+    print FILE <<EOT;
+This document was generated on $TODAY using the
+<A HREF=\"$HOMEPAGE\">texi2html</A>
+translator version 1.51.</P>
+EOT
+    &print_footer;
+}
+
+sub protect_texi {
+    # protect @ { } ` '
+    s/\@\@/$;0/go;
+    s/\@\{/$;1/go;
+    s/\@\}/$;2/go;
+    s/\@\`/$;3/go;
+    s/\@\'/$;4/go;
+}
+
+sub protect_html {
+    local($what) = @_;
+    # protect & < >
+    $what =~ s/\&/\&\#38;/g;
+    $what =~ s/\</\&\#60;/g;
+    $what =~ s/\>/\&\#62;/g;
+    # but recognize some HTML things
+    $what =~ s/\&\#60;\/A\&\#62;/<\/A>/g;	      # </A>
+    $what =~ s/\&\#60;A ([^\&]+)\&\#62;/<A $1>/g;     # <A [^&]+>
+    $what =~ s/\&\#60;IMG ([^\&]+)\&\#62;/<IMG $1>/g; # <IMG [^&]+>
+    return($what);
+}
+
+sub unprotect_texi {
+    s/$;0/\@/go;
+    s/$;1/\{/go;
+    s/$;2/\}/go;
+    s/$;3/\`/go;
+    s/$;4/\'/go;
+}
+
+sub unprotect_html {
+    local($what) = @_;
+    $what =~ s/\&\#38;/\&/g;
+    $what =~ s/\&\#60;/\</g;
+    $what =~ s/\&\#62;/\>/g;
+    return($what);
+}
+
+sub byalpha {
+    $key2alpha{$a} cmp $key2alpha{$b};
+}
+
+##############################################################################
+
+	# These next few lines are legal in both Perl and nroff.
+
+.00 ;			# finish .ig
+ 
+'di			\" finish diversion--previous line must be blank
+.nr nl 0-1		\" fake up transition to first page again
+.nr % 0			\" start at page 1
+'; __END__ ############# From here on it's a standard manual page ############
+.TH TEXI2HTML 1 "09/10/96"
+.AT 3
+.SH NAME
+texi2html \- a Texinfo to HTML converter
+.SH SYNOPSIS
+.B texi2html [options] file
+.PP
+.B texi2html -check [-verbose] files
+.SH DESCRIPTION
+.I Texi2html
+converts the given Texinfo file to a set of HTML files. It tries to handle
+most of the Texinfo commands. It creates hypertext links for cross-references,
+footnotes...
+.PP
+It also tries to add links from a reference to its corresponding entry in the
+bibliography (if any). It may also handle a glossary (see the
+.B \-glossary
+option).
+.PP
+.I Texi2html
+creates several files depending on the contents of the Texinfo file and on
+the chosen options (see FILES).
+.PP
+The HTML files created by
+.I texi2html
+are closer to TeX than to Info, that's why
+.I texi2html
+converts @iftex sections and not @ifinfo ones by default. You can reverse
+this with the \-expandinfo option.
+.SH OPTIONS
+.TP 12
+.B \-check
+Check the given file and give the list of all things that may be Texinfo commands.
+This may be used to check the output of
+.I texi2html
+to find the Texinfo commands that have been left in the HTML file.
+.TP
+.B \-expandinfo
+Expand @ifinfo sections, not @iftex ones.
+.TP
+.B \-glossary
+Use the section named 'Glossary' to build a list of terms and put links in the HTML
+document from each term toward its definition.
+.TP
+.B \-invisible \fIname\fP
+Use \fIname\fP to create invisible destination anchors for index links. This is a workaround
+for a known bug of many WWW browsers, including xmosaic.
+.TP
+.B \-I \fIdir\fP
+Look also in \fIdir\fP to find included files.
+.TP
+.B \-menu
+Show the Texinfo menus; by default they are ignored.
+.TP
+.B \-monolithic
+Output only one file, including the table of contents and footnotes.
+.TP
+.B \-number
+Number the sections.
+.TP
+.B \-split_chapter
+Split the output into several HTML files (one per main section:
+chapter, appendix...).
+.TP
+.B \-split_node
+Split the output into several HTML files (one per node).
+.TP
+.B \-usage
+Print usage instructions, listing the current available command-line options.
+.TP
+.B \-verbose
+Give a verbose output. Can be used with the
+.B \-check
+option.
+.PP
+.SH FILES
+By default
+.I texi2html
+creates the following files (foo being the name of the Texinfo file):
+.TP 16
+.B foo_toc.html
+The table of contents.
+.TP
+.B foo.html
+The document's contents.
+.TP
+.B foo_foot.html
+The footnotes (if any).
+.PP
+When used with the
+.B \-split
+option, it creates several files (one per chapter or node), named
+.B foo_n.html
+(n being the indice of the chapter or node), instead of the single
+.B foo.html
+file.
+.PP
+When used with the
+.B \-monolithic
+option, it creates only one file:
+.B foo.html
+.SH VARIABLES
+.I texi2html
+predefines the following variables: \fBhtml\fP, \fBtexi2html\fP.
+.SH ADDITIONAL COMMANDS
+.I texi2html
+implements the following non-Texinfo commands:
+.TP 16
+.B @ifhtml
+This indicates the start of an HTML section, this section will passed through
+without any modofication.
+.TP
+.B @end ifhtml
+This indcates the end of an HTML section.
+.SH VERSION
+This is \fItexi2html\fP version 1.51, 09/10/96.
+.PP
+The latest version of \fItexi2html\fP can be found in WWW, cf. URL
+http://wwwcn.cern.ch/dci/texi2html/
+.SH AUTHOR
+The main author is Lionel Cons, CERN CN/DCI/UWS, Lionel.Cons@cern.ch.
+Many other people around the net contributed to this program.
+.SH COPYRIGHT
+This program is the intellectual property of the European
+Laboratory for Particle Physics (known as CERN). No guarantee whatsoever is
+provided by CERN. No liability whatsoever is accepted for any loss or damage
+of any kind resulting from any defect or inaccuracy in this information or
+code.
+.PP
+CERN, 1211 Geneva 23, Switzerland
+.SH "SEE ALSO"
+GNU Texinfo Documentation Format,
+HyperText Markup Language (HTML),
+World Wide Web (WWW).
+.SH BUGS
+This program does not understand all Texinfo commands (yet).
+.PP
+TeX specific commands (normally enclosed in @iftex) will be
+passed unmodified.
+.ex
diff --git a/readline/emacs_keymap.c b/readline/emacs_keymap.c
new file mode 100644
index 00000000000..4ba385843f6
--- /dev/null
+++ b/readline/emacs_keymap.c
@@ -0,0 +1,885 @@
+/* emacs_keymap.c -- the keymap for emacs_mode in readline (). */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (BUFSIZ)
+#include <stdio.h>
+#endif /* !BUFSIZ */
+
+#include "readline.h"
+
+/* An array of function pointers, one for each possible key.
+   If the type byte is ISKMAP, then the pointer is the address of
+   a keymap. */
+
+KEYMAP_ENTRY_ARRAY emacs_standard_keymap = {
+
+  /* Control keys. */
+  { ISFUNC, rl_set_mark },		/* Control-@ */
+  { ISFUNC, rl_beg_of_line },		/* Control-a */
+  { ISFUNC, rl_backward },		/* Control-b */
+  { ISFUNC, (Function *)0x0 },		/* Control-c */
+  { ISFUNC, rl_delete },		/* Control-d */
+  { ISFUNC, rl_end_of_line },		/* Control-e */
+  { ISFUNC, rl_forward },		/* Control-f */
+  { ISFUNC, rl_abort },			/* Control-g */
+  { ISFUNC, rl_rubout },		/* Control-h */
+  { ISFUNC, rl_complete },		/* Control-i */
+  { ISFUNC, rl_newline },		/* Control-j */
+  { ISFUNC, rl_kill_line },		/* Control-k */
+  { ISFUNC, rl_clear_screen },		/* Control-l */
+  { ISFUNC, rl_newline },		/* Control-m */
+  { ISFUNC, rl_get_next_history },	/* Control-n */
+  { ISFUNC, (Function *)0x0 },		/* Control-o */
+  { ISFUNC, rl_get_previous_history },	/* Control-p */
+  { ISFUNC, rl_quoted_insert },		/* Control-q */
+  { ISFUNC, rl_reverse_search_history }, /* Control-r */
+  { ISFUNC, rl_forward_search_history }, /* Control-s */
+  { ISFUNC, rl_transpose_chars },	/* Control-t */
+  { ISFUNC, rl_unix_line_discard },	/* Control-u */
+  { ISFUNC, rl_quoted_insert },		/* Control-v */
+  { ISFUNC, rl_unix_word_rubout },	/* Control-w */
+  { ISKMAP, (Function *)emacs_ctlx_keymap },	/* Control-x */
+  { ISFUNC, rl_yank },			/* Control-y */
+  { ISFUNC, (Function *)0x0 },		/* Control-z */
+  { ISKMAP, (Function *)emacs_meta_keymap }, /* Control-[ */
+  { ISFUNC, (Function *)0x0 },		/* Control-\ */
+  { ISFUNC, rl_char_search },		/* Control-] */
+  { ISFUNC, (Function *)0x0 },		/* Control-^ */
+  { ISFUNC, rl_undo_command },		/* Control-_ */
+
+  /* The start of printing characters. */
+  { ISFUNC, rl_insert },	/* SPACE */
+  { ISFUNC, rl_insert },	/* ! */
+  { ISFUNC, rl_insert },	/* " */
+  { ISFUNC, rl_insert },	/* # */
+  { ISFUNC, rl_insert },	/* $ */
+  { ISFUNC, rl_insert },	/* % */
+  { ISFUNC, rl_insert },	/* & */
+  { ISFUNC, rl_insert },	/* ' */
+  { ISFUNC, rl_insert },	/* ( */
+#if defined (PAREN_MATCHING)
+  { ISFUNC, rl_insert_close },	/* ) */
+#else
+  { ISFUNC, rl_insert },	/* ) */
+#endif /* !PAREN_MATCHING */
+  { ISFUNC, rl_insert },	/* * */
+  { ISFUNC, rl_insert },	/* + */
+  { ISFUNC, rl_insert },	/* , */
+  { ISFUNC, rl_insert },	/* - */
+  { ISFUNC, rl_insert },	/* . */
+  { ISFUNC, rl_insert },	/* / */
+
+  /* Regular digits. */
+  { ISFUNC, rl_insert },	/* 0 */
+  { ISFUNC, rl_insert },	/* 1 */
+  { ISFUNC, rl_insert },	/* 2 */
+  { ISFUNC, rl_insert },	/* 3 */
+  { ISFUNC, rl_insert },	/* 4 */
+  { ISFUNC, rl_insert },	/* 5 */
+  { ISFUNC, rl_insert },	/* 6 */
+  { ISFUNC, rl_insert },	/* 7 */
+  { ISFUNC, rl_insert },	/* 8 */
+  { ISFUNC, rl_insert },	/* 9 */
+
+  /* A little more punctuation. */
+  { ISFUNC, rl_insert },	/* : */
+  { ISFUNC, rl_insert },	/* ; */
+  { ISFUNC, rl_insert },	/* < */
+  { ISFUNC, rl_insert },	/* = */
+  { ISFUNC, rl_insert },	/* > */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* @ */
+
+  /* Uppercase alphabet. */
+  { ISFUNC, rl_insert },	/* A */
+  { ISFUNC, rl_insert },	/* B */
+  { ISFUNC, rl_insert },	/* C */
+  { ISFUNC, rl_insert },	/* D */
+  { ISFUNC, rl_insert },	/* E */
+  { ISFUNC, rl_insert },	/* F */
+  { ISFUNC, rl_insert },	/* G */
+  { ISFUNC, rl_insert },	/* H */
+  { ISFUNC, rl_insert },	/* I */
+  { ISFUNC, rl_insert },	/* J */
+  { ISFUNC, rl_insert },	/* K */
+  { ISFUNC, rl_insert },	/* L */
+  { ISFUNC, rl_insert },	/* M */
+  { ISFUNC, rl_insert },	/* N */
+  { ISFUNC, rl_insert },	/* O */
+  { ISFUNC, rl_insert },	/* P */
+  { ISFUNC, rl_insert },	/* Q */
+  { ISFUNC, rl_insert },	/* R */
+  { ISFUNC, rl_insert },	/* S */
+  { ISFUNC, rl_insert },	/* T */
+  { ISFUNC, rl_insert },	/* U */
+  { ISFUNC, rl_insert },	/* V */
+  { ISFUNC, rl_insert },	/* W */
+  { ISFUNC, rl_insert },	/* X */
+  { ISFUNC, rl_insert },	/* Y */
+  { ISFUNC, rl_insert },	/* Z */
+
+  /* Some more punctuation. */
+  { ISFUNC, rl_insert },	/* [ */
+  { ISFUNC, rl_insert },	/* \ */
+#if defined (PAREN_MATCHING)
+  { ISFUNC, rl_insert_close },	/* ] */
+#else
+  { ISFUNC, rl_insert },	/* ] */
+#endif /* !PAREN_MATCHING */
+  { ISFUNC, rl_insert },	/* ^ */
+  { ISFUNC, rl_insert },	/* _ */
+  { ISFUNC, rl_insert },	/* ` */
+
+  /* Lowercase alphabet. */
+  { ISFUNC, rl_insert },	/* a */
+  { ISFUNC, rl_insert },	/* b */
+  { ISFUNC, rl_insert },	/* c */
+  { ISFUNC, rl_insert },	/* d */
+  { ISFUNC, rl_insert },	/* e */
+  { ISFUNC, rl_insert },	/* f */
+  { ISFUNC, rl_insert },	/* g */
+  { ISFUNC, rl_insert },	/* h */
+  { ISFUNC, rl_insert },	/* i */
+  { ISFUNC, rl_insert },	/* j */
+  { ISFUNC, rl_insert },	/* k */
+  { ISFUNC, rl_insert },	/* l */
+  { ISFUNC, rl_insert },	/* m */
+  { ISFUNC, rl_insert },	/* n */
+  { ISFUNC, rl_insert },	/* o */
+  { ISFUNC, rl_insert },	/* p */
+  { ISFUNC, rl_insert },	/* q */
+  { ISFUNC, rl_insert },	/* r */
+  { ISFUNC, rl_insert },	/* s */
+  { ISFUNC, rl_insert },	/* t */
+  { ISFUNC, rl_insert },	/* u */
+  { ISFUNC, rl_insert },	/* v */
+  { ISFUNC, rl_insert },	/* w */
+  { ISFUNC, rl_insert },	/* x */
+  { ISFUNC, rl_insert },	/* y */
+  { ISFUNC, rl_insert },	/* z */
+
+  /* Final punctuation. */
+  { ISFUNC, rl_insert },	/* { */
+  { ISFUNC, rl_insert },	/* | */
+#if defined (PAREN_MATCHING)
+  { ISFUNC, rl_insert_close },	/* } */
+#else
+  { ISFUNC, rl_insert },	/* } */
+#endif /* !PAREN_MATCHING */
+  { ISFUNC, rl_insert },	/* ~ */
+  { ISFUNC, rl_rubout },	/* RUBOUT */
+
+#if KEYMAP_SIZE > 128
+  /* Pure 8-bit characters (128 - 159).
+     These might be used in some
+     character sets. */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+
+  /* ISO Latin-1 characters (160 - 255) */
+  { ISFUNC, rl_insert },	/* No-break space */
+  { ISFUNC, rl_insert },	/* Inverted exclamation mark */
+  { ISFUNC, rl_insert },	/* Cent sign */
+  { ISFUNC, rl_insert },	/* Pound sign */
+  { ISFUNC, rl_insert },	/* Currency sign */
+  { ISFUNC, rl_insert },	/* Yen sign */
+  { ISFUNC, rl_insert },	/* Broken bar */
+  { ISFUNC, rl_insert },	/* Section sign */
+  { ISFUNC, rl_insert },	/* Diaeresis */
+  { ISFUNC, rl_insert },	/* Copyright sign */
+  { ISFUNC, rl_insert },	/* Feminine ordinal indicator */
+  { ISFUNC, rl_insert },	/* Left pointing double angle quotation mark */
+  { ISFUNC, rl_insert },	/* Not sign */
+  { ISFUNC, rl_insert },	/* Soft hyphen */
+  { ISFUNC, rl_insert },	/* Registered sign */
+  { ISFUNC, rl_insert },	/* Macron */
+  { ISFUNC, rl_insert },	/* Degree sign */
+  { ISFUNC, rl_insert },	/* Plus-minus sign */
+  { ISFUNC, rl_insert },	/* Superscript two */
+  { ISFUNC, rl_insert },	/* Superscript three */
+  { ISFUNC, rl_insert },	/* Acute accent */
+  { ISFUNC, rl_insert },	/* Micro sign */
+  { ISFUNC, rl_insert },	/* Pilcrow sign */
+  { ISFUNC, rl_insert },	/* Middle dot */
+  { ISFUNC, rl_insert },	/* Cedilla */
+  { ISFUNC, rl_insert },	/* Superscript one */
+  { ISFUNC, rl_insert },	/* Masculine ordinal indicator */
+  { ISFUNC, rl_insert },	/* Right pointing double angle quotation mark */
+  { ISFUNC, rl_insert },	/* Vulgar fraction one quarter */
+  { ISFUNC, rl_insert },	/* Vulgar fraction one half */
+  { ISFUNC, rl_insert },	/* Vulgar fraction three quarters */
+  { ISFUNC, rl_insert },	/* Inverted questionk mark */
+  { ISFUNC, rl_insert },	/* Latin capital letter a with grave */
+  { ISFUNC, rl_insert },	/* Latin capital letter a with acute */
+  { ISFUNC, rl_insert },	/* Latin capital letter a with circumflex */
+  { ISFUNC, rl_insert },	/* Latin capital letter a with tilde */
+  { ISFUNC, rl_insert },	/* Latin capital letter a with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin capital letter a with ring above */
+  { ISFUNC, rl_insert },	/* Latin capital letter ae */
+  { ISFUNC, rl_insert },	/* Latin capital letter c with cedilla */
+  { ISFUNC, rl_insert },	/* Latin capital letter e with grave */
+  { ISFUNC, rl_insert },	/* Latin capital letter e with acute */
+  { ISFUNC, rl_insert },	/* Latin capital letter e with circumflex */
+  { ISFUNC, rl_insert },	/* Latin capital letter e with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin capital letter i with grave */
+  { ISFUNC, rl_insert },	/* Latin capital letter i with acute */
+  { ISFUNC, rl_insert },	/* Latin capital letter i with circumflex */
+  { ISFUNC, rl_insert },	/* Latin capital letter i with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin capital letter eth (Icelandic) */
+  { ISFUNC, rl_insert },	/* Latin capital letter n with tilde */
+  { ISFUNC, rl_insert },	/* Latin capital letter o with grave */
+  { ISFUNC, rl_insert },	/* Latin capital letter o with acute */
+  { ISFUNC, rl_insert },	/* Latin capital letter o with circumflex */
+  { ISFUNC, rl_insert },	/* Latin capital letter o with tilde */
+  { ISFUNC, rl_insert },	/* Latin capital letter o with diaeresis */
+  { ISFUNC, rl_insert },	/* Multiplication sign */
+  { ISFUNC, rl_insert },	/* Latin capital letter o with stroke */
+  { ISFUNC, rl_insert },	/* Latin capital letter u with grave */
+  { ISFUNC, rl_insert },	/* Latin capital letter u with acute */
+  { ISFUNC, rl_insert },	/* Latin capital letter u with circumflex */
+  { ISFUNC, rl_insert },	/* Latin capital letter u with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin capital letter Y with acute */
+  { ISFUNC, rl_insert },	/* Latin capital letter thorn (Icelandic) */
+  { ISFUNC, rl_insert },	/* Latin small letter sharp s (German) */
+  { ISFUNC, rl_insert },	/* Latin small letter a with grave */
+  { ISFUNC, rl_insert },	/* Latin small letter a with acute */
+  { ISFUNC, rl_insert },	/* Latin small letter a with circumflex */
+  { ISFUNC, rl_insert },	/* Latin small letter a with tilde */
+  { ISFUNC, rl_insert },	/* Latin small letter a with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin small letter a with ring above */
+  { ISFUNC, rl_insert },	/* Latin small letter ae */
+  { ISFUNC, rl_insert },	/* Latin small letter c with cedilla */
+  { ISFUNC, rl_insert },	/* Latin small letter e with grave */
+  { ISFUNC, rl_insert },	/* Latin small letter e with acute */
+  { ISFUNC, rl_insert },	/* Latin small letter e with circumflex */
+  { ISFUNC, rl_insert },	/* Latin small letter e with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin small letter i with grave */
+  { ISFUNC, rl_insert },	/* Latin small letter i with acute */
+  { ISFUNC, rl_insert },	/* Latin small letter i with circumflex */
+  { ISFUNC, rl_insert },	/* Latin small letter i with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin small letter eth (Icelandic) */
+  { ISFUNC, rl_insert },	/* Latin small letter n with tilde */
+  { ISFUNC, rl_insert },	/* Latin small letter o with grave */
+  { ISFUNC, rl_insert },	/* Latin small letter o with acute */
+  { ISFUNC, rl_insert },	/* Latin small letter o with circumflex */
+  { ISFUNC, rl_insert },	/* Latin small letter o with tilde */
+  { ISFUNC, rl_insert },	/* Latin small letter o with diaeresis */
+  { ISFUNC, rl_insert },	/* Division sign */
+  { ISFUNC, rl_insert },	/* Latin small letter o with stroke */
+  { ISFUNC, rl_insert },	/* Latin small letter u with grave */
+  { ISFUNC, rl_insert },	/* Latin small letter u with acute */
+  { ISFUNC, rl_insert },	/* Latin small letter u with circumflex */
+  { ISFUNC, rl_insert },	/* Latin small letter u with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin small letter y with acute */
+  { ISFUNC, rl_insert },	/* Latin small letter thorn (Icelandic) */
+  { ISFUNC, rl_insert }		/* Latin small letter y with diaeresis */
+#endif /* KEYMAP_SIZE > 128 */
+};
+
+KEYMAP_ENTRY_ARRAY emacs_meta_keymap = {
+
+  /* Meta keys.  Just like above, but the high bit is set. */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-@ */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-a */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-b */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-c */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-d */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-e */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-f */
+  { ISFUNC, rl_abort },		/* Meta-Control-g */
+  { ISFUNC, rl_backward_kill_word },	/* Meta-Control-h */
+  { ISFUNC, rl_tab_insert },	/* Meta-Control-i */
+  { ISFUNC, rl_vi_editing_mode }, /* Meta-Control-j */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-k */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-l */
+  { ISFUNC, rl_vi_editing_mode }, /* Meta-Control-m */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-n */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-o */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-p */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-q */
+  { ISFUNC, rl_revert_line },	/* Meta-Control-r */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-s */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-t */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-u */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-v */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-w */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-x */
+  { ISFUNC, rl_yank_nth_arg },	/* Meta-Control-y */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-z */
+
+  { ISFUNC, rl_complete },	/* Meta-Control-[ */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-\ */
+  { ISFUNC, rl_backward_char_search },	/* Meta-Control-] */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-^ */
+  { ISFUNC, (Function *)0x0 },	/* Meta-Control-_ */
+
+  /* The start of printing characters. */
+  { ISFUNC, rl_set_mark },	/* Meta-SPACE */
+  { ISFUNC, (Function *)0x0 },	/* Meta-! */
+  { ISFUNC, (Function *)0x0 },	/* Meta-" */
+  { ISFUNC, rl_insert_comment },/* Meta-# */
+  { ISFUNC, (Function *)0x0 },	/* Meta-$ */
+  { ISFUNC, (Function *)0x0 },	/* Meta-% */
+  { ISFUNC, rl_tilde_expand },	/* Meta-& */
+  { ISFUNC, (Function *)0x0 },	/* Meta-' */
+  { ISFUNC, (Function *)0x0 },	/* Meta-( */
+  { ISFUNC, (Function *)0x0 },	/* Meta-) */
+  { ISFUNC, rl_insert_completions },	/* Meta-* */
+  { ISFUNC, (Function *)0x0 },	/* Meta-+ */
+  { ISFUNC, (Function *)0x0 },	/* Meta-, */
+  { ISFUNC, rl_digit_argument }, /* Meta-- */
+  { ISFUNC, rl_yank_last_arg},	/* Meta-. */
+  { ISFUNC, (Function *)0x0 },	/* Meta-/ */
+
+  /* Regular digits. */
+  { ISFUNC, rl_digit_argument }, /* Meta-0 */
+  { ISFUNC, rl_digit_argument }, /* Meta-1 */
+  { ISFUNC, rl_digit_argument }, /* Meta-2 */
+  { ISFUNC, rl_digit_argument }, /* Meta-3 */
+  { ISFUNC, rl_digit_argument }, /* Meta-4 */
+  { ISFUNC, rl_digit_argument }, /* Meta-5 */
+  { ISFUNC, rl_digit_argument }, /* Meta-6 */
+  { ISFUNC, rl_digit_argument }, /* Meta-7 */
+  { ISFUNC, rl_digit_argument }, /* Meta-8 */
+  { ISFUNC, rl_digit_argument }, /* Meta-9 */
+
+  /* A little more punctuation. */
+  { ISFUNC, (Function *)0x0 },		/* Meta-: */
+  { ISFUNC, (Function *)0x0 },		/* Meta-; */
+  { ISFUNC, rl_beginning_of_history },	/* Meta-< */
+  { ISFUNC, rl_possible_completions },	/* Meta-= */
+  { ISFUNC, rl_end_of_history },	/* Meta-> */
+  { ISFUNC, rl_possible_completions },	/* Meta-? */
+  { ISFUNC, (Function *)0x0 },		/* Meta-@ */
+
+  /* Uppercase alphabet. */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-A */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-B */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-C */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-D */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-E */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-F */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-G */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-H */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-I */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-J */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-K */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-L */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-M */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-N */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-O */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-P */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-Q */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-R */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-S */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-T */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-U */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-V */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-W */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-X */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-Y */
+  { ISFUNC, rl_do_lowercase_version },	/* Meta-Z */
+
+  /* Some more punctuation. */
+  { ISFUNC, (Function *)0x0 },		/* Meta-[ */	/* was rl_arrow_keys */
+  { ISFUNC, rl_delete_horizontal_space },	/* Meta-\ */
+  { ISFUNC, (Function *)0x0 },		/* Meta-] */
+  { ISFUNC, (Function *)0x0 },		/* Meta-^ */
+  { ISFUNC, rl_yank_last_arg },		/* Meta-_ */
+  { ISFUNC, (Function *)0x0 },		/* Meta-` */
+
+  /* Lowercase alphabet. */
+  { ISFUNC, (Function *)0x0 },	/* Meta-a */
+  { ISFUNC, rl_backward_word },	/* Meta-b */
+  { ISFUNC, rl_capitalize_word }, /* Meta-c */
+  { ISFUNC, rl_kill_word },	/* Meta-d */
+  { ISFUNC, (Function *)0x0 },	/* Meta-e */
+  { ISFUNC, rl_forward_word },	/* Meta-f */
+  { ISFUNC, (Function *)0x0 },	/* Meta-g */
+  { ISFUNC, (Function *)0x0 },	/* Meta-h */
+  { ISFUNC, (Function *)0x0 },	/* Meta-i */
+  { ISFUNC, (Function *)0x0 },	/* Meta-j */
+  { ISFUNC, (Function *)0x0 },	/* Meta-k */
+  { ISFUNC, rl_downcase_word },	/* Meta-l */
+  { ISFUNC, (Function *)0x0 },	/* Meta-m */
+  { ISFUNC, rl_noninc_forward_search },	/* Meta-n */
+  { ISFUNC, (Function *)0x0 },	/* Meta-o */	/* was rl_arrow_keys */
+  { ISFUNC, rl_noninc_reverse_search },	/* Meta-p */
+  { ISFUNC, (Function *)0x0 },	/* Meta-q */
+  { ISFUNC, rl_revert_line },	/* Meta-r */
+  { ISFUNC, (Function *)0x0 },	/* Meta-s */
+  { ISFUNC, rl_transpose_words }, /* Meta-t */
+  { ISFUNC, rl_upcase_word },	/* Meta-u */
+  { ISFUNC, (Function *)0x0 },	/* Meta-v */
+  { ISFUNC, (Function *)0x0 },	/* Meta-w */
+  { ISFUNC, (Function *)0x0 },	/* Meta-x */
+  { ISFUNC, rl_yank_pop },	/* Meta-y */
+  { ISFUNC, (Function *)0x0 },	/* Meta-z */
+
+  /* Final punctuation. */
+  { ISFUNC, (Function *)0x0 },	/* Meta-{ */
+  { ISFUNC, (Function *)0x0 },	/* Meta-| */
+  { ISFUNC, (Function *)0x0 },	/* Meta-} */
+  { ISFUNC, rl_tilde_expand },	/* Meta-~ */
+  { ISFUNC, rl_backward_kill_word }, /* Meta-rubout */
+
+#if KEYMAP_SIZE > 128
+  /* Undefined keys. */
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 }
+#endif /* KEYMAP_SIZE > 128 */
+};
+
+KEYMAP_ENTRY_ARRAY emacs_ctlx_keymap = {
+
+  /* Control keys. */
+  { ISFUNC, (Function *)0x0 },		/* Control-@ */
+  { ISFUNC, (Function *)0x0 },		/* Control-a */
+  { ISFUNC, (Function *)0x0 },		/* Control-b */
+  { ISFUNC, (Function *)0x0 },		/* Control-c */
+  { ISFUNC, (Function *)0x0 },		/* Control-d */
+  { ISFUNC, (Function *)0x0 },		/* Control-e */
+  { ISFUNC, (Function *)0x0 },		/* Control-f */
+  { ISFUNC, rl_abort },			/* Control-g */
+  { ISFUNC, (Function *)0x0 },		/* Control-h */
+  { ISFUNC, (Function *)0x0 },		/* Control-i */
+  { ISFUNC, (Function *)0x0 },		/* Control-j */
+  { ISFUNC, (Function *)0x0 },		/* Control-k */
+  { ISFUNC, (Function *)0x0 },		/* Control-l */
+  { ISFUNC, (Function *)0x0 },		/* Control-m */
+  { ISFUNC, (Function *)0x0 },		/* Control-n */
+  { ISFUNC, (Function *)0x0 },		/* Control-o */
+  { ISFUNC, (Function *)0x0 },		/* Control-p */
+  { ISFUNC, (Function *)0x0 },		/* Control-q */
+  { ISFUNC, rl_re_read_init_file },	/* Control-r */
+  { ISFUNC, (Function *)0x0 },		/* Control-s */
+  { ISFUNC, (Function *)0x0 },		/* Control-t */
+  { ISFUNC, rl_undo_command },		/* Control-u */
+  { ISFUNC, (Function *)0x0 },		/* Control-v */
+  { ISFUNC, (Function *)0x0 },		/* Control-w */
+  { ISFUNC, rl_exchange_point_and_mark },/* Control-x */
+  { ISFUNC, (Function *)0x0 },		/* Control-y */
+  { ISFUNC, (Function *)0x0 },		/* Control-z */
+  { ISFUNC, (Function *)0x0 },		/* Control-[ */
+  { ISFUNC, (Function *)0x0 },		/* Control-\ */
+  { ISFUNC, (Function *)0x0 },		/* Control-] */
+  { ISFUNC, (Function *)0x0 },		/* Control-^ */
+  { ISFUNC, (Function *)0x0 },		/* Control-_ */
+
+  /* The start of printing characters. */
+  { ISFUNC, (Function *)0x0 },		/* SPACE */
+  { ISFUNC, (Function *)0x0 },		/* ! */
+  { ISFUNC, (Function *)0x0 },		/* " */
+  { ISFUNC, (Function *)0x0 },		/* # */
+  { ISFUNC, (Function *)0x0 },		/* $ */
+  { ISFUNC, (Function *)0x0 },		/* % */
+  { ISFUNC, (Function *)0x0 },		/* & */
+  { ISFUNC, (Function *)0x0 },		/* ' */
+  { ISFUNC, rl_start_kbd_macro },	/* ( */
+  { ISFUNC, rl_end_kbd_macro  },	/* ) */
+  { ISFUNC, (Function *)0x0 },		/* * */
+  { ISFUNC, (Function *)0x0 },		/* + */
+  { ISFUNC, (Function *)0x0 },		/* , */
+  { ISFUNC, (Function *)0x0 },		/* - */
+  { ISFUNC, (Function *)0x0 },		/* . */
+  { ISFUNC, (Function *)0x0 },		/* / */
+
+  /* Regular digits. */
+  { ISFUNC, (Function *)0x0 },		/* 0 */
+  { ISFUNC, (Function *)0x0 },		/* 1 */
+  { ISFUNC, (Function *)0x0 },		/* 2 */
+  { ISFUNC, (Function *)0x0 },		/* 3 */
+  { ISFUNC, (Function *)0x0 },		/* 4 */
+  { ISFUNC, (Function *)0x0 },		/* 5 */
+  { ISFUNC, (Function *)0x0 },		/* 6 */
+  { ISFUNC, (Function *)0x0 },		/* 7 */
+  { ISFUNC, (Function *)0x0 },		/* 8 */
+  { ISFUNC, (Function *)0x0 },		/* 9 */
+
+  /* A little more punctuation. */
+  { ISFUNC, (Function *)0x0 },	/* : */
+  { ISFUNC, (Function *)0x0 },	/* ; */
+  { ISFUNC, (Function *)0x0 },	/* < */
+  { ISFUNC, (Function *)0x0 },	/* = */
+  { ISFUNC, (Function *)0x0 },	/* > */
+  { ISFUNC, (Function *)0x0 },	/* ? */
+  { ISFUNC, (Function *)0x0 },	/* @ */
+
+  /* Uppercase alphabet. */
+  { ISFUNC, rl_do_lowercase_version },	/* A */
+  { ISFUNC, rl_do_lowercase_version },	/* B */
+  { ISFUNC, rl_do_lowercase_version },	/* C */
+  { ISFUNC, rl_do_lowercase_version },	/* D */
+  { ISFUNC, rl_do_lowercase_version },	/* E */
+  { ISFUNC, rl_do_lowercase_version },	/* F */
+  { ISFUNC, rl_do_lowercase_version },	/* G */
+  { ISFUNC, rl_do_lowercase_version },	/* H */
+  { ISFUNC, rl_do_lowercase_version },	/* I */
+  { ISFUNC, rl_do_lowercase_version },	/* J */
+  { ISFUNC, rl_do_lowercase_version },	/* K */
+  { ISFUNC, rl_do_lowercase_version },	/* L */
+  { ISFUNC, rl_do_lowercase_version },	/* M */
+  { ISFUNC, rl_do_lowercase_version },	/* N */
+  { ISFUNC, rl_do_lowercase_version },	/* O */
+  { ISFUNC, rl_do_lowercase_version },	/* P */
+  { ISFUNC, rl_do_lowercase_version },	/* Q */
+  { ISFUNC, rl_do_lowercase_version },	/* R */
+  { ISFUNC, rl_do_lowercase_version },	/* S */
+  { ISFUNC, rl_do_lowercase_version },	/* T */
+  { ISFUNC, rl_do_lowercase_version },	/* U */
+  { ISFUNC, rl_do_lowercase_version },	/* V */
+  { ISFUNC, rl_do_lowercase_version },	/* W */
+  { ISFUNC, rl_do_lowercase_version },	/* X */
+  { ISFUNC, rl_do_lowercase_version },	/* Y */
+  { ISFUNC, rl_do_lowercase_version },	/* Z */
+
+  /* Some more punctuation. */
+  { ISFUNC, (Function *)0x0 },		/* [ */
+  { ISFUNC, (Function *)0x0 },		/* \ */
+  { ISFUNC, (Function *)0x0 },		/* ] */
+  { ISFUNC, (Function *)0x0 },		/* ^ */
+  { ISFUNC, (Function *)0x0 },		/* _ */
+  { ISFUNC, (Function *)0x0 },		/* ` */
+
+  /* Lowercase alphabet. */
+  { ISFUNC, (Function *)0x0 },		/* a */
+  { ISFUNC, (Function *)0x0 },		/* b */
+  { ISFUNC, (Function *)0x0 },		/* c */
+  { ISFUNC, (Function *)0x0 },		/* d */
+  { ISFUNC, rl_call_last_kbd_macro },	/* e */
+  { ISFUNC, (Function *)0x0 },		/* f */
+  { ISFUNC, (Function *)0x0 },		/* g */
+  { ISFUNC, (Function *)0x0 },		/* h */
+  { ISFUNC, (Function *)0x0 },		/* i */
+  { ISFUNC, (Function *)0x0 },		/* j */
+  { ISFUNC, (Function *)0x0 },		/* k */
+  { ISFUNC, (Function *)0x0 },		/* l */
+  { ISFUNC, (Function *)0x0 },		/* m */
+  { ISFUNC, (Function *)0x0 },		/* n */
+  { ISFUNC, (Function *)0x0 },		/* o */
+  { ISFUNC, (Function *)0x0 },		/* p */
+  { ISFUNC, (Function *)0x0 },		/* q */
+  { ISFUNC, (Function *)0x0 },		/* r */
+  { ISFUNC, (Function *)0x0 },		/* s */
+  { ISFUNC, (Function *)0x0 },		/* t */
+  { ISFUNC, (Function *)0x0 },		/* u */
+  { ISFUNC, (Function *)0x0 },		/* v */
+  { ISFUNC, (Function *)0x0 },		/* w */
+  { ISFUNC, (Function *)0x0 },		/* x */
+  { ISFUNC, (Function *)0x0 },		/* y */
+  { ISFUNC, (Function *)0x0 },		/* z */
+
+  /* Final punctuation. */
+  { ISFUNC, (Function *)0x0 },		/* { */
+  { ISFUNC, (Function *)0x0 },		/* | */
+  { ISFUNC, (Function *)0x0 },		/* } */
+  { ISFUNC, (Function *)0x0 },		/* ~ */
+  { ISFUNC, rl_backward_kill_line },	/* RUBOUT */
+
+#if KEYMAP_SIZE > 128
+  /* Undefined keys. */
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 }
+#endif /* KEYMAP_SIZE > 128 */
+};
diff --git a/readline/examples/Inputrc b/readline/examples/Inputrc
new file mode 100644
index 00000000000..5b71bd701c4
--- /dev/null
+++ b/readline/examples/Inputrc
@@ -0,0 +1,65 @@
+# My ~/.inputrc file is in -*- text -*- for easy editing with Emacs.
+#
+# Notice the various bindings which are conditionalized depending
+# on which program is running, or what terminal is active.
+#
+
+# In all programs, all terminals, make sure this is bound.
+"\C-x\C-r": re-read-init-file
+
+# Hp terminals (and some others) have ugly default behaviour for C-h.
+"\C-h": backward-delete-char
+"\e\C-h": backward-kill-word
+"\C-xd": dump-functions
+
+# In xterm windows, make the arrow keys do the right thing.
+$if TERM=xterm
+"\e[A": previous-history
+"\e[B": next-history
+"\e[C": forward-char
+"\e[D": backward-char
+
+# alternate arrow key prefix
+"\eOA": previous-history
+"\eOB": next-history
+"\eOC": forward-char
+"\eOD": backward-char
+
+# Under Xterm in Bash, we bind local Function keys to do something useful.
+$if Bash
+"\e[11~": "Function Key 1"
+"\e[12~": "Function Key 2"
+"\e[13~": "Function Key 3"
+"\e[14~": "Function Key 4"
+"\e[15~": "Function Key 5"
+
+# I know the following escape sequence numbers are 1 greater than
+# the function key.  Don't ask me why, I didn't design the xterm terminal.
+"\e[17~": "Function Key 6"
+"\e[18~": "Function Key 7"
+"\e[19~": "Function Key 8"
+"\e[20~": "Function Key 9"
+"\e[21~": "Function Key 10"
+$endif
+$endif
+
+# For Bash, all terminals, add some Bash specific hacks.
+$if Bash
+"\C-xv": show-bash-version
+"\C-x\C-e": shell-expand-line
+
+# Here is one for editing my path.
+"\C-xp": "$PATH\C-x\C-e\C-e\"\C-aPATH=\":\C-b"
+
+# Make C-x r read my mail in emacs.
+# "\C-xr": "emacs -f rmail\C-j"
+$endif
+
+# For FTP, different hacks:
+$if Ftp
+"\C-xg": "get \M-?"
+"\C-xt": "put \M-?"
+"\M-.": yank-last-arg
+$endif
+
+" ": self-insert
diff --git a/readline/examples/Makefile.in b/readline/examples/Makefile.in
new file mode 100644
index 00000000000..18486736ec9
--- /dev/null
+++ b/readline/examples/Makefile.in
@@ -0,0 +1,50 @@
+# This is the Makefile for the examples subdirectory of readline. -*- text -*-
+#
+SHELL = /bin/sh
+RM = rm -f
+
+srcdir = @srcdir@
+VPATH = .:@srcdir@
+top_srcdir = @top_srcdir@
+BUILD_DIR = .
+
+DEFS = @DEFS@
+CC = @CC@
+CFLAGS = @CFLAGS@
+LOCAL_CFLAGS = @LOCAL_CFLAGS@
+CPPFLAGS = @CPPFLAGS@
+
+INCLUDES = -I $(srcdir) -I $(top_srcdir) -I..
+
+CCFLAGS  = $(DEFS) $(LOCAL_CFLAGS) $(CPPFLAGS) $(INCLUDES) $(CFLAGS)
+LDFLAGS = -g -L..
+
+TERMCAP_LIB = @TERMCAP_LIB@
+
+.c.o:
+	$(CC) $(CCFLAGS) -c $<
+
+EXECUTABLES = fileman rltest rl
+OBJECTS = fileman.o rltest.o rl.o
+
+all: $(EXECUTABLES)
+
+rl: rl.o
+	$(CC) $(LDFLAGS) -o $@ rl.o -lreadline $(TERMCAP_LIB)
+
+fileman: fileman.o
+	$(CC) $(LDFLAGS) -o $@ fileman.o -lreadline $(TERMCAP_LIB)
+
+rltest: rltest.o
+	$(CC) $(LDFLAGS) -o $@ rltest.o -lreadline $(TERMCAP_LIB)
+
+clean mostlyclean:
+	$(RM) $(OBJECTS)
+	$(RM) $(EXECUTABLES)
+
+distclean maintainer-clean: clean
+	$(RM) Makefile
+
+fileman.o: fileman.c
+rltest.o: rltest.c
+rl.o: rl.c
diff --git a/readline/examples/fileman.c b/readline/examples/fileman.c
new file mode 100644
index 00000000000..0702a5badc7
--- /dev/null
+++ b/readline/examples/fileman.c
@@ -0,0 +1,450 @@
+/* fileman.c -- A tiny application which demonstrates how to use the
+   GNU Readline library.  This application interactively allows users
+   to manipulate files and their modes. */
+/*
+ * Remove the next line if you're compiling this against an installed
+ * libreadline.a
+ */
+#define READLINE_LIBRARY
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <sys/types.h>
+#ifdef HAVE_SYS_FILE_H
+#include <sys/file.h>
+#endif
+#include <sys/stat.h>
+
+#include <stdio.h>
+#include <errno.h>
+
+#if defined (HAVE_STRING_H)
+#  include <string.h>
+#else /* !HAVE_STRING_H */
+#  include <strings.h>
+#endif /* !HAVE_STRING_H */
+
+#ifdef READLINE_LIBRARY
+#  include "readline.h"
+#  include "history.h"
+#else
+#  include <readline/readline.h>
+#  include <readline/history.h>
+#endif
+
+extern char *getwd ();
+extern char *xmalloc ();
+
+/* The names of functions that actually do the manipulation. */
+int com_list (), com_view (), com_rename (), com_stat (), com_pwd ();
+int com_delete (), com_help (), com_cd (), com_quit ();
+
+/* A structure which contains information on the commands this program
+   can understand. */
+
+typedef struct {
+  char *name;			/* User printable name of the function. */
+  Function *func;		/* Function to call to do the job. */
+  char *doc;			/* Documentation for this function.  */
+} COMMAND;
+
+COMMAND commands[] = {
+  { "cd", com_cd, "Change to directory DIR" },
+  { "delete", com_delete, "Delete FILE" },
+  { "help", com_help, "Display this text" },
+  { "?", com_help, "Synonym for `help'" },
+  { "list", com_list, "List files in DIR" },
+  { "ls", com_list, "Synonym for `list'" },
+  { "pwd", com_pwd, "Print the current working directory" },
+  { "quit", com_quit, "Quit using Fileman" },
+  { "rename", com_rename, "Rename FILE to NEWNAME" },
+  { "stat", com_stat, "Print out statistics on FILE" },
+  { "view", com_view, "View the contents of FILE" },
+  { (char *)NULL, (Function *)NULL, (char *)NULL }
+};
+
+/* Forward declarations. */
+char *stripwhite ();
+COMMAND *find_command ();
+
+/* The name of this program, as taken from argv[0]. */
+char *progname;
+
+/* When non-zero, this global means the user is done using this program. */
+int done;
+
+char *
+dupstr (s)
+     char *s;
+{
+  char *r;
+
+  r = xmalloc (strlen (s) + 1);
+  strcpy (r, s);
+  return (r);
+}
+
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  char *line, *s;
+
+  progname = argv[0];
+
+  initialize_readline ();	/* Bind our completer. */
+
+  /* Loop reading and executing lines until the user quits. */
+  for ( ; done == 0; )
+    {
+      line = readline ("FileMan: ");
+
+      if (!line)
+        break;
+
+      /* Remove leading and trailing whitespace from the line.
+         Then, if there is anything left, add it to the history list
+         and execute it. */
+      s = stripwhite (line);
+
+      if (*s)
+        {
+          add_history (s);
+          execute_line (s);
+        }
+
+      free (line);
+    }
+  exit (0);
+}
+
+/* Execute a command line. */
+int
+execute_line (line)
+     char *line;
+{
+  register int i;
+  COMMAND *command;
+  char *word;
+
+  /* Isolate the command word. */
+  i = 0;
+  while (line[i] && whitespace (line[i]))
+    i++;
+  word = line + i;
+
+  while (line[i] && !whitespace (line[i]))
+    i++;
+
+  if (line[i])
+    line[i++] = '\0';
+
+  command = find_command (word);
+
+  if (!command)
+    {
+      fprintf (stderr, "%s: No such command for FileMan.\n", word);
+      return (-1);
+    }
+
+  /* Get argument to command, if any. */
+  while (whitespace (line[i]))
+    i++;
+
+  word = line + i;
+
+  /* Call the function. */
+  return ((*(command->func)) (word));
+}
+
+/* Look up NAME as the name of a command, and return a pointer to that
+   command.  Return a NULL pointer if NAME isn't a command name. */
+COMMAND *
+find_command (name)
+     char *name;
+{
+  register int i;
+
+  for (i = 0; commands[i].name; i++)
+    if (strcmp (name, commands[i].name) == 0)
+      return (&commands[i]);
+
+  return ((COMMAND *)NULL);
+}
+
+/* Strip whitespace from the start and end of STRING.  Return a pointer
+   into STRING. */
+char *
+stripwhite (string)
+     char *string;
+{
+  register char *s, *t;
+
+  for (s = string; whitespace (*s); s++)
+    ;
+    
+  if (*s == 0)
+    return (s);
+
+  t = s + strlen (s) - 1;
+  while (t > s && whitespace (*t))
+    t--;
+  *++t = '\0';
+
+  return s;
+}
+
+/* **************************************************************** */
+/*                                                                  */
+/*                  Interface to Readline Completion                */
+/*                                                                  */
+/* **************************************************************** */
+
+char *command_generator ();
+char **fileman_completion ();
+
+/* Tell the GNU Readline library how to complete.  We want to try to complete
+   on command names if this is the first word in the line, or on filenames
+   if not. */
+initialize_readline ()
+{
+  /* Allow conditional parsing of the ~/.inputrc file. */
+  rl_readline_name = "FileMan";
+
+  /* Tell the completer that we want a crack first. */
+  rl_attempted_completion_function = (CPPFunction *)fileman_completion;
+}
+
+/* Attempt to complete on the contents of TEXT.  START and END bound the
+   region of rl_line_buffer that contains the word to complete.  TEXT is
+   the word to complete.  We can use the entire contents of rl_line_buffer
+   in case we want to do some simple parsing.  Return the array of matches,
+   or NULL if there aren't any. */
+char **
+fileman_completion (text, start, end)
+     char *text;
+     int start, end;
+{
+  char **matches;
+
+  matches = (char **)NULL;
+
+  /* If this word is at the start of the line, then it is a command
+     to complete.  Otherwise it is the name of a file in the current
+     directory. */
+  if (start == 0)
+    matches = completion_matches (text, command_generator);
+
+  return (matches);
+}
+
+/* Generator function for command completion.  STATE lets us know whether
+   to start from scratch; without any state (i.e. STATE == 0), then we
+   start at the top of the list. */
+char *
+command_generator (text, state)
+     char *text;
+     int state;
+{
+  static int list_index, len;
+  char *name;
+
+  /* If this is a new word to complete, initialize now.  This includes
+     saving the length of TEXT for efficiency, and initializing the index
+     variable to 0. */
+  if (!state)
+    {
+      list_index = 0;
+      len = strlen (text);
+    }
+
+  /* Return the next name which partially matches from the command list. */
+  while (name = commands[list_index].name)
+    {
+      list_index++;
+
+      if (strncmp (name, text, len) == 0)
+        return (dupstr(name));
+    }
+
+  /* If no names matched, then return NULL. */
+  return ((char *)NULL);
+}
+
+/* **************************************************************** */
+/*                                                                  */
+/*                       FileMan Commands                           */
+/*                                                                  */
+/* **************************************************************** */
+
+/* String to pass to system ().  This is for the LIST, VIEW and RENAME
+   commands. */
+static char syscom[1024];
+
+/* List the file(s) named in arg. */
+com_list (arg)
+     char *arg;
+{
+  if (!arg)
+    arg = "";
+
+  sprintf (syscom, "ls -FClg %s", arg);
+  return (system (syscom));
+}
+
+com_view (arg)
+     char *arg;
+{
+  if (!valid_argument ("view", arg))
+    return 1;
+
+  sprintf (syscom, "more %s", arg);
+  return (system (syscom));
+}
+
+com_rename (arg)
+     char *arg;
+{
+  too_dangerous ("rename");
+  return (1);
+}
+
+com_stat (arg)
+     char *arg;
+{
+  struct stat finfo;
+
+  if (!valid_argument ("stat", arg))
+    return (1);
+
+  if (stat (arg, &finfo) == -1)
+    {
+      perror (arg);
+      return (1);
+    }
+
+  printf ("Statistics for `%s':\n", arg);
+
+  printf ("%s has %d link%s, and is %d byte%s in length.\n",
+	  arg,
+          finfo.st_nlink,
+          (finfo.st_nlink == 1) ? "" : "s",
+          finfo.st_size,
+          (finfo.st_size == 1) ? "" : "s");
+  printf ("Inode Last Change at: %s", ctime (&finfo.st_ctime));
+  printf ("      Last access at: %s", ctime (&finfo.st_atime));
+  printf ("    Last modified at: %s", ctime (&finfo.st_mtime));
+  return (0);
+}
+
+com_delete (arg)
+     char *arg;
+{
+  too_dangerous ("delete");
+  return (1);
+}
+
+/* Print out help for ARG, or for all of the commands if ARG is
+   not present. */
+com_help (arg)
+     char *arg;
+{
+  register int i;
+  int printed = 0;
+
+  for (i = 0; commands[i].name; i++)
+    {
+      if (!*arg || (strcmp (arg, commands[i].name) == 0))
+        {
+          printf ("%s\t\t%s.\n", commands[i].name, commands[i].doc);
+          printed++;
+        }
+    }
+
+  if (!printed)
+    {
+      printf ("No commands match `%s'.  Possibilties are:\n", arg);
+
+      for (i = 0; commands[i].name; i++)
+        {
+          /* Print in six columns. */
+          if (printed == 6)
+            {
+              printed = 0;
+              printf ("\n");
+            }
+
+          printf ("%s\t", commands[i].name);
+          printed++;
+        }
+
+      if (printed)
+        printf ("\n");
+    }
+  return (0);
+}
+
+/* Change to the directory ARG. */
+com_cd (arg)
+     char *arg;
+{
+  if (chdir (arg) == -1)
+    {
+      perror (arg);
+      return 1;
+    }
+
+  com_pwd ("");
+  return (0);
+}
+
+/* Print out the current working directory. */
+com_pwd (ignore)
+     char *ignore;
+{
+  char dir[1024], *s;
+
+  s = getwd (dir);
+  if (s == 0)
+    {
+      printf ("Error getting pwd: %s\n", dir);
+      return 1;
+    }
+
+  printf ("Current directory is %s\n", dir);
+  return 0;
+}
+
+/* The user wishes to quit using this program.  Just set DONE non-zero. */
+com_quit (arg)
+     char *arg;
+{
+  done = 1;
+  return (0);
+}
+
+/* Function which tells you that you can't do this. */
+too_dangerous (caller)
+     char *caller;
+{
+  fprintf (stderr,
+           "%s: Too dangerous for me to distribute.  Write it yourself.\n",
+           caller);
+}
+
+/* Return non-zero if ARG is a valid argument for CALLER, else print
+   an error message and return zero. */
+int
+valid_argument (caller, arg)
+     char *caller, *arg;
+{
+  if (!arg || !*arg)
+    {
+      fprintf (stderr, "%s: Argument required.\n", caller);
+      return (0);
+    }
+
+  return (1);
+}
diff --git a/readline/examples/histexamp.c b/readline/examples/histexamp.c
new file mode 100644
index 00000000000..eceb66df19e
--- /dev/null
+++ b/readline/examples/histexamp.c
@@ -0,0 +1,82 @@
+main ()
+{
+  char line[1024], *t;
+  int len, done = 0;
+
+  line[0] = 0;
+
+  using_history ();
+  while (!done)
+    {
+      printf ("history$ ");
+      fflush (stdout);
+      t = fgets (line, sizeof (line) - 1, stdin);
+      if (t && *t)
+        {
+          len = strlen (t);
+          if (t[len - 1] == '\n')
+            t[len - 1] = '\0';
+        }
+
+      if (!t)
+        strcpy (line, "quit");
+
+      if (line[0])
+        {
+          char *expansion;
+          int result;
+
+          using_history ();
+
+          result = history_expand (line, &expansion);
+          if (result)
+            fprintf (stderr, "%s\n", expansion);
+
+          if (result < 0 || result == 2)
+            {
+              free (expansion);
+              continue;
+            }
+
+          add_history (expansion);
+          strncpy (line, expansion, sizeof (line) - 1);
+          free (expansion);
+        }
+
+      if (strcmp (line, "quit") == 0)
+        done = 1;
+      else if (strcmp (line, "save") == 0)
+        write_history ("history_file");
+      else if (strcmp (line, "read") == 0)
+        read_history ("history_file");
+      else if (strcmp (line, "list") == 0)
+        {
+          register HIST_ENTRY **the_list;
+          register int i;
+
+          the_list = history_list ();
+          if (the_list)
+            for (i = 0; the_list[i]; i++)
+              printf ("%d: %s\n", i + history_base, the_list[i]->line);
+        }
+      else if (strncmp (line, "delete", 6) == 0)
+        {
+          int which;
+          if ((sscanf (line + 6, "%d", &which)) == 1)
+            {
+              HIST_ENTRY *entry = remove_history (which);
+              if (!entry)
+                fprintf (stderr, "No such entry %d\n", which);
+              else
+                {
+                  free (entry->line);
+                  free (entry);
+                }
+            }
+          else
+            {
+              fprintf (stderr, "non-numeric arg given to `delete'\n");
+            }
+        }
+    }
+}
diff --git a/readline/examples/manexamp.c b/readline/examples/manexamp.c
new file mode 100644
index 00000000000..3496efa00e7
--- /dev/null
+++ b/readline/examples/manexamp.c
@@ -0,0 +1,94 @@
+/* manexamp.c -- The examples which appear in the documentation are here. */
+
+#include <stdio.h>
+#include <readline/readline.h>
+
+
+/* **************************************************************** */
+/*                                                                  */
+*   			How to Emulate gets ()			    */
+/*                                                                  */
+/* **************************************************************** */
+
+/* A static variable for holding the line. */
+static char *line_read = (char *)NULL;
+
+/* Read a string, and return a pointer to it.  Returns NULL on EOF. */
+char *
+rl_gets ()
+{
+  /* If the buffer has already been allocated, return the memory
+     to the free pool. */
+  if (line_read)
+    {
+      free (line_read);
+      line_read = (char *)NULL;
+    }
+
+  /* Get a line from the user. */
+  line_read = readline ("");
+
+  /* If the line has any text in it, save it on the history. */
+  if (line_read && *line_read)
+    add_history (line_read);
+
+  return (line_read);
+}
+
+/* **************************************************************** */
+/*                                                                  */
+/*        Writing a Function to be Called by Readline.              */
+/*                                                                  */
+/* **************************************************************** */
+
+/* Invert the case of the COUNT following characters. */
+invert_case_line (count, key)
+     int count, key;
+{
+  register int start, end;
+
+  start = rl_point;
+
+  if (count < 0)
+    {
+      direction = -1;
+      count = -count;
+    }
+  else
+    direction = 1;
+      
+  /* Find the end of the range to modify. */
+  end = start + (count * direction);
+
+  /* Force it to be within range. */
+  if (end > rl_end)
+    end = rl_end;
+  else if (end < 0)
+    end = -1;
+
+  if (start > end)
+    {
+      int temp = start;
+      start = end;
+      end = temp;
+    }
+
+  if (start == end)
+    return;
+
+  /* Tell readline that we are modifying the line, so save the undo
+     information. */
+  rl_modifying (start, end);
+
+  for (; start != end; start += direction)
+    {
+      if (uppercase_p (rl_line_buffer[start]))
+	rl_line_buffer[start] = to_lower (rl_line_buffer[start]);
+      else if (lowercase_p (rl_line_buffer[start]))
+	rl_line_buffer[start] = to_upper (rl_line_buffer[start]);
+    }
+
+  /* Move point to on top of the last character changed. */
+  rl_point = end - direction;
+}
+
diff --git a/readline/examples/rl.c b/readline/examples/rl.c
new file mode 100644
index 00000000000..ccddd0fb752
--- /dev/null
+++ b/readline/examples/rl.c
@@ -0,0 +1,117 @@
+/*
+ * rl - command-line interface to read a line from the standard input
+ *      (or another fd) using readline.
+ *
+ * usage: rl [-p prompt] [-u unit] [-d default]
+ */
+
+/*
+ * Remove the next line if you're compiling this against an installed
+ * libreadline.a
+ */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+#include "posixstat.h"
+#include "readline.h"
+#include "history.h"
+
+extern int optind;
+extern char *optarg;
+
+#if !defined (strchr) && !defined (__STDC__)
+extern char *strrchr();
+#endif
+
+static char *progname;
+static char *deftext;
+
+static int
+set_deftext ()
+{
+  if (deftext)
+    {
+      rl_insert_text (deftext);
+      deftext = (char *)NULL;
+      rl_startup_hook = (Function *)NULL;
+    }
+}
+
+usage()
+{
+  fprintf (stderr, "%s: usage: %s [-p prompt] [-u unit] [-d default]\n",
+		progname, progname);
+}
+
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  char *temp, *prompt;
+  struct stat sb;
+  int done, opt, fd;
+  FILE *ifp;
+
+  progname = strrchr(argv[0], '/');
+  if (progname == 0)
+    progname = argv[0];
+  else
+    progname++;
+
+  /* defaults */
+  prompt = "readline$ ";
+  fd = 0;
+  deftext = (char *)0;
+
+  while ((opt = getopt(argc, argv, "p:u:d:")) != EOF)
+    {
+      switch (opt)
+	{
+	case 'p':
+	  prompt = optarg;
+	  break;
+	case 'u':
+	  fd = atoi(optarg);
+	  if (fd < 0)
+	    {
+	      fprintf (stderr, "%s: bad file descriptor `%s'\n", progname, optarg);
+	      exit (2);
+	    }
+	  break;
+	case 'd':
+	  deftext = optarg;
+	  break;
+	default:
+	  usage ();
+	  exit (2);
+	}
+    }
+
+  if (fd != 0)
+    {
+      if (fstat (fd, &sb) < 0)
+	{
+	  fprintf (stderr, "%s: %d: bad file descriptor\n", progname, fd);
+	  exit (1);
+	}
+      ifp = fdopen (fd, "r");
+      rl_instream = ifp;
+    }
+
+  if (deftext && *deftext)
+    rl_startup_hook = set_deftext;
+
+  temp = readline (prompt);
+
+  /* Test for EOF. */
+  if (temp == 0)
+    exit (1);
+
+  puts (temp);
+  exit (0);
+}
diff --git a/readline/examples/rltest.c b/readline/examples/rltest.c
new file mode 100644
index 00000000000..453f8ec2ada
--- /dev/null
+++ b/readline/examples/rltest.c
@@ -0,0 +1,67 @@
+/* **************************************************************** */
+/*								    */
+/*			Testing Readline			    */
+/*								    */
+/* **************************************************************** */
+
+/*
+ * Remove the next line if you're compiling this against an installed
+ * libreadline.a
+ */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+#include "readline.h"
+#include "history.h"
+
+extern HIST_ENTRY **history_list ();
+
+main ()
+{
+  char *temp, *prompt;
+  int done;
+
+  temp = (char *)NULL;
+  prompt = "readline$ ";
+  done = 0;
+
+  while (!done)
+    {
+      temp = readline (prompt);
+
+      /* Test for EOF. */
+      if (!temp)
+	exit (1);
+
+      /* If there is anything on the line, print it and remember it. */
+      if (*temp)
+	{
+	  fprintf (stderr, "%s\r\n", temp);
+	  add_history (temp);
+	}
+
+      /* Check for `command' that we handle. */
+      if (strcmp (temp, "quit") == 0)
+	done = 1;
+
+      if (strcmp (temp, "list") == 0)
+	{
+	  HIST_ENTRY **list;
+	  register int i;
+
+	  list = history_list ();
+	  if (list)
+	    {
+	      for (i = 0; list[i]; i++)
+		fprintf (stderr, "%d: %s\r\n", i, list[i]->line);
+	    }
+	}
+      free (temp);
+    }
+  exit (0);
+}
diff --git a/readline/funmap.c b/readline/funmap.c
new file mode 100644
index 00000000000..3946e0fc26e
--- /dev/null
+++ b/readline/funmap.c
@@ -0,0 +1,252 @@
+/* funmap.c -- attach names to functions. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+extern char *xmalloc (), *xrealloc ();
+
+#if !defined (BUFSIZ)
+#include <stdio.h>
+#endif /* BUFSIZ */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include "rlconf.h"
+#include "readline.h"
+
+extern int _rl_qsort_string_compare ();
+
+FUNMAP **funmap;
+static int funmap_size;
+static int funmap_entry;
+
+/* After initializing the function map, this is the index of the first
+   program specific function. */
+int funmap_program_specific_entry_start;
+
+static FUNMAP default_funmap[] = {
+  { "abort", rl_abort },
+  { "accept-line", rl_newline },
+  { "arrow-key-prefix", rl_arrow_keys },
+  { "backward-char", rl_backward },
+  { "backward-delete-char", rl_rubout },
+  { "backward-kill-line", rl_backward_kill_line },
+  { "backward-kill-word", rl_backward_kill_word },
+  { "backward-word", rl_backward_word },
+  { "beginning-of-history", rl_beginning_of_history },
+  { "beginning-of-line", rl_beg_of_line },
+  { "call-last-kbd-macro", rl_call_last_kbd_macro },
+  { "capitalize-word", rl_capitalize_word },
+  { "character-search", rl_char_search },
+  { "character-search-backward", rl_backward_char_search },
+  { "clear-screen", rl_clear_screen },
+  { "complete", rl_complete },
+  { "copy-backward-word", rl_copy_backward_word },
+  { "copy-forward-word", rl_copy_forward_word },
+  { "copy-region-as-kill", rl_copy_region_to_kill },
+  { "delete-char", rl_delete },
+  { "delete-horizontal-space", rl_delete_horizontal_space },
+  { "digit-argument", rl_digit_argument },
+  { "do-lowercase-version", rl_do_lowercase_version },
+  { "downcase-word", rl_downcase_word },
+  { "dump-functions", rl_dump_functions },
+  { "dump-macros", rl_dump_macros },
+  { "dump-variables", rl_dump_variables },
+  { "emacs-editing-mode", rl_emacs_editing_mode },
+  { "end-kbd-macro", rl_end_kbd_macro },
+  { "end-of-history", rl_end_of_history },
+  { "end-of-line", rl_end_of_line },
+  { "exchange-point-and-mark", rl_exchange_point_and_mark },
+  { "forward-char", rl_forward },
+  { "forward-search-history", rl_forward_search_history },
+  { "forward-word", rl_forward_word },
+  { "history-search-backward", rl_history_search_backward },
+  { "history-search-forward", rl_history_search_forward },
+  { "insert-comment", rl_insert_comment },
+  { "insert-completions", rl_insert_completions },
+  { "kill-whole-line", rl_kill_full_line },
+  { "kill-line", rl_kill_line },
+  { "kill-region", rl_kill_region },
+  { "kill-word", rl_kill_word },
+  { "menu-complete", rl_menu_complete },
+  { "next-history", rl_get_next_history },
+  { "non-incremental-forward-search-history", rl_noninc_forward_search },
+  { "non-incremental-reverse-search-history", rl_noninc_reverse_search },
+  { "non-incremental-forward-search-history-again", rl_noninc_forward_search_again },
+  { "non-incremental-reverse-search-history-again", rl_noninc_reverse_search_again },
+#ifdef __CYGWIN32__
+  { "paste-from-clipboard", rl_paste_from_clipboard },
+#endif
+  { "possible-completions", rl_possible_completions },
+  { "previous-history", rl_get_previous_history },
+  { "quoted-insert", rl_quoted_insert },
+  { "re-read-init-file", rl_re_read_init_file },
+  { "redraw-current-line", rl_refresh_line},
+  { "reverse-search-history", rl_reverse_search_history },
+  { "revert-line", rl_revert_line },
+  { "self-insert", rl_insert },
+  { "set-mark", rl_set_mark },
+  { "start-kbd-macro", rl_start_kbd_macro },
+  { "tab-insert", rl_tab_insert },
+  { "tilde-expand", rl_tilde_expand },
+  { "transpose-chars", rl_transpose_chars },
+  { "transpose-words", rl_transpose_words },
+  { "tty-status", rl_tty_status },
+  { "undo", rl_undo_command },
+  { "universal-argument", rl_universal_argument },
+  { "unix-line-discard", rl_unix_line_discard },
+  { "unix-word-rubout", rl_unix_word_rubout },
+  { "upcase-word", rl_upcase_word },
+  { "yank", rl_yank },
+  { "yank-last-arg", rl_yank_last_arg },
+  { "yank-nth-arg", rl_yank_nth_arg },
+  { "yank-pop", rl_yank_pop },
+
+#if defined (VI_MODE)
+  { "vi-append-eol", rl_vi_append_eol },
+  { "vi-append-mode", rl_vi_append_mode },
+  { "vi-arg-digit", rl_vi_arg_digit },
+  { "vi-back-to-indent", rl_vi_back_to_indent },
+  { "vi-bWord", rl_vi_bWord },
+  { "vi-bracktype", rl_vi_bracktype },
+  { "vi-bword", rl_vi_bword },
+  { "vi-change-case", rl_vi_change_case },
+  { "vi-change-char", rl_vi_change_char },
+  { "vi-change-to", rl_vi_change_to },
+  { "vi-char-search", rl_vi_char_search },
+  { "vi-column", rl_vi_column },
+  { "vi-complete", rl_vi_complete },
+  { "vi-delete", rl_vi_delete },
+  { "vi-delete-to", rl_vi_delete_to },
+  { "vi-eWord", rl_vi_eWord },
+  { "vi-editing-mode", rl_vi_editing_mode },
+  { "vi-end-word", rl_vi_end_word },
+  { "vi-eof-maybe", rl_vi_eof_maybe },
+  { "vi-eword", rl_vi_eword },
+  { "vi-fWord", rl_vi_fWord },
+  { "vi-fetch-history", rl_vi_fetch_history },
+  { "vi-first-print", rl_vi_first_print },
+  { "vi-fword", rl_vi_fword },
+  { "vi-goto-mark", rl_vi_goto_mark },
+  { "vi-insert-beg", rl_vi_insert_beg },
+  { "vi-insertion-mode", rl_vi_insertion_mode },
+  { "vi-match", rl_vi_match },
+  { "vi-movement-mode", rl_vi_movement_mode },
+  { "vi-next-word", rl_vi_next_word },
+  { "vi-overstrike", rl_vi_overstrike },
+  { "vi-overstrike-delete", rl_vi_overstrike_delete },
+  { "vi-prev-word", rl_vi_prev_word },
+  { "vi-put", rl_vi_put },
+  { "vi-redo", rl_vi_redo },
+  { "vi-replace", rl_vi_replace },
+  { "vi-search", rl_vi_search },
+  { "vi-search-again", rl_vi_search_again },
+  { "vi-set-mark", rl_vi_set_mark },
+  { "vi-subst", rl_vi_subst },
+  { "vi-tilde-expand", rl_vi_tilde_expand },
+  { "vi-yank-arg", rl_vi_yank_arg },
+  { "vi-yank-to", rl_vi_yank_to },
+#endif /* VI_MODE */
+
+ {(char *)NULL, (Function *)NULL }
+};
+
+int
+rl_add_funmap_entry (name, function)
+     char *name;
+     Function *function;
+{
+  if (funmap_entry + 2 >= funmap_size)
+    {
+      funmap_size += 64;
+      funmap = (FUNMAP **)xrealloc (funmap, funmap_size * sizeof (FUNMAP *));
+    }
+  
+  funmap[funmap_entry] = (FUNMAP *)xmalloc (sizeof (FUNMAP));
+  funmap[funmap_entry]->name = name;
+  funmap[funmap_entry]->function = function;
+
+  funmap[++funmap_entry] = (FUNMAP *)NULL;
+  return funmap_entry;
+}
+
+static int funmap_initialized;
+
+/* Make the funmap contain all of the default entries. */
+void
+rl_initialize_funmap ()
+{
+  register int i;
+
+  if (funmap_initialized)
+    return;
+
+  for (i = 0; default_funmap[i].name; i++)
+    rl_add_funmap_entry (default_funmap[i].name, default_funmap[i].function);
+
+  funmap_initialized = 1;
+  funmap_program_specific_entry_start = i;
+}
+
+/* Produce a NULL terminated array of known function names.  The array
+   is sorted.  The array itself is allocated, but not the strings inside.
+   You should free () the array when you done, but not the pointrs. */
+char **
+rl_funmap_names ()
+{
+  char **result;
+  int result_size, result_index;
+
+  /* Make sure that the function map has been initialized. */
+  rl_initialize_funmap ();
+
+  for (result_index = result_size = 0, result = (char **)NULL; funmap[result_index]; result_index++)
+    {
+      if (result_index + 2 > result_size)
+	{
+	  result_size += 20;
+	  result = (char **)xrealloc (result, result_size * sizeof (char *));
+	}
+
+      result[result_index] = funmap[result_index]->name;
+      result[result_index + 1] = (char *)NULL;
+    }
+
+  qsort (result, result_index, sizeof (char *), _rl_qsort_string_compare);
+  return (result);
+}
+
+/* Things that mean `Control'. */
+char *possible_control_prefixes[] = {
+  "Control-", "C-", "CTRL-", (char *)NULL
+};
+
+char *possible_meta_prefixes[] = {
+  "Meta", "M-", (char *)NULL
+};
diff --git a/readline/histexpand.c b/readline/histexpand.c
new file mode 100644
index 00000000000..0dc179ac7f6
--- /dev/null
+++ b/readline/histexpand.c
@@ -0,0 +1,1355 @@
+/* histexpand.c -- history expansion. */
+
+/* Copyright (C) 1989, 1992 Free Software Foundation, Inc.
+
+   This file contains the GNU History Library (the Library), a set of
+   routines for managing the text of previously typed lines.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#if defined (HAVE_UNISTD_H)
+#  ifndef _MINIX
+#    include <sys/types.h>
+#  endif
+#  include <unistd.h>
+#endif
+
+#if defined (HAVE_STRING_H)
+#  include <string.h>
+#else
+#  include <strings.h>
+#endif /* !HAVE_STRING_H */
+
+#include "history.h"
+#include "histlib.h"
+
+#define HISTORY_WORD_DELIMITERS		" \t\n;&()|<>"
+#define HISTORY_QUOTE_CHARACTERS	"\"'`"
+
+static char error_pointer;
+
+static char *subst_lhs;
+static char *subst_rhs;
+static int subst_lhs_len;
+static int subst_rhs_len;
+
+static char *get_history_word_specifier ();
+static char *history_find_word ();
+
+extern int history_offset;
+
+extern char *single_quote ();
+static char *quote_breaks ();
+
+extern char *xmalloc (), *xrealloc ();
+
+/* Variables exported by this file. */
+/* The character that represents the start of a history expansion
+   request.  This is usually `!'. */
+char history_expansion_char = '!';
+
+/* The character that invokes word substitution if found at the start of
+   a line.  This is usually `^'. */
+char history_subst_char = '^';
+
+/* During tokenization, if this character is seen as the first character
+   of a word, then it, and all subsequent characters upto a newline are
+   ignored.  For a Bourne shell, this should be '#'.  Bash special cases
+   the interactive comment character to not be a comment delimiter. */
+char history_comment_char = '\0';
+
+/* The list of characters which inhibit the expansion of text if found
+   immediately following history_expansion_char. */
+char *history_no_expand_chars = " \t\n\r=";
+
+/* If set to a non-zero value, single quotes inhibit history expansion.
+   The default is 0. */
+int history_quotes_inhibit_expansion = 0;
+
+/* If set, this points to a function that is called to verify that a
+   particular history expansion should be performed. */
+Function *history_inhibit_expansion_function;
+
+/* **************************************************************** */
+/*								    */
+/*			History Expansion			    */
+/*								    */
+/* **************************************************************** */
+
+/* Hairy history expansion on text, not tokens.  This is of general
+   use, and thus belongs in this library. */
+
+/* The last string searched for by a !?string? search. */
+static char *search_string;
+
+/* The last string matched by a !?string? search. */
+static char *search_match;
+
+/* Return the event specified at TEXT + OFFSET modifying OFFSET to
+   point to after the event specifier.  Just a pointer to the history
+   line is returned; NULL is returned in the event of a bad specifier.
+   You pass STRING with *INDEX equal to the history_expansion_char that
+   begins this specification.
+   DELIMITING_QUOTE is a character that is allowed to end the string
+   specification for what to search for in addition to the normal
+   characters `:', ` ', `\t', `\n', and sometimes `?'.
+   So you might call this function like:
+   line = get_history_event ("!echo:p", &index, 0);  */
+char *
+get_history_event (string, caller_index, delimiting_quote)
+     char *string;
+     int *caller_index;
+     int delimiting_quote;
+{
+  register int i;
+  register char c;
+  HIST_ENTRY *entry;
+  int which, sign, local_index, substring_okay;
+  Function *search_func;
+  char *temp;
+
+  /* The event can be specified in a number of ways.
+
+     !!   the previous command
+     !n   command line N
+     !-n  current command-line minus N
+     !str the most recent command starting with STR
+     !?str[?]
+	  the most recent command containing STR
+
+     All values N are determined via HISTORY_BASE. */
+
+  i = *caller_index;
+
+  if (string[i] != history_expansion_char)
+    return ((char *)NULL);
+
+  /* Move on to the specification. */
+  i++;
+
+  sign = 1;
+  substring_okay = 0;
+
+#define RETURN_ENTRY(e, w) \
+	return ((e = history_get (w)) ? e->line : (char *)NULL)
+
+  /* Handle !! case. */
+  if (string[i] == history_expansion_char)
+    {
+      i++;
+      which = history_base + (history_length - 1);
+      *caller_index = i;
+      RETURN_ENTRY (entry, which);
+    }
+
+  /* Hack case of numeric line specification. */
+  if (string[i] == '-')
+    {
+      sign = -1;
+      i++;
+    }
+
+  if (_rl_digit_p (string[i]))
+    {
+      /* Get the extent of the digits and compute the value. */
+      for (which = 0; _rl_digit_p (string[i]); i++)
+	which = (which * 10) + _rl_digit_value (string[i]);
+
+      *caller_index = i;
+
+      if (sign < 0)
+	which = (history_length + history_base) - which;
+
+      RETURN_ENTRY (entry, which);
+    }
+
+  /* This must be something to search for.  If the spec begins with
+     a '?', then the string may be anywhere on the line.  Otherwise,
+     the string must be found at the start of a line. */
+  if (string[i] == '?')
+    {
+      substring_okay++;
+      i++;
+    }
+
+  /* Only a closing `?' or a newline delimit a substring search string. */
+  for (local_index = i; c = string[i]; i++)
+    if ((!substring_okay && (whitespace (c) || c == ':' ||
+	(history_search_delimiter_chars && member (c, history_search_delimiter_chars)) ||
+	string[i] == delimiting_quote)) ||
+	string[i] == '\n' ||
+	(substring_okay && string[i] == '?'))
+      break;
+
+  which = i - local_index;
+  temp = xmalloc (1 + which);
+  if (which)
+    strncpy (temp, string + local_index, which);
+  temp[which] = '\0';
+
+  if (substring_okay && string[i] == '?')
+    i++;
+
+  *caller_index = i;
+
+#define FAIL_SEARCH() \
+  do { \
+    history_offset = history_length; free (temp) ; return (char *)NULL; \
+  } while (0)
+
+  /* If there is no search string, try to use the previous search string,
+     if one exists.  If not, fail immediately. */
+  if (*temp == '\0' && substring_okay)
+    {
+      if (search_string)
+        {
+          free (temp);
+          temp = savestring (search_string);
+        }
+      else
+        FAIL_SEARCH ();
+    }
+
+  search_func = substring_okay ? history_search : history_search_prefix;
+  while (1)
+    {
+      local_index = (*search_func) (temp, -1);
+
+      if (local_index < 0)
+	FAIL_SEARCH ();
+
+      if (local_index == 0 || substring_okay)
+	{
+	  entry = current_history ();
+	  history_offset = history_length;
+	
+	  /* If this was a substring search, then remember the
+	     string that we matched for word substitution. */
+	  if (substring_okay)
+	    {
+	      FREE (search_string);
+	      search_string = temp;
+
+	      FREE (search_match);
+	      search_match = history_find_word (entry->line, local_index);
+	    }
+	  else
+	    free (temp);
+
+	  return (entry->line);
+	}
+
+      if (history_offset)
+	history_offset--;
+      else
+	FAIL_SEARCH ();
+    }
+#undef FAIL_SEARCH
+#undef RETURN_ENTRY
+}
+
+/* Function for extracting single-quoted strings.  Used for inhibiting
+   history expansion within single quotes. */
+
+/* Extract the contents of STRING as if it is enclosed in single quotes.
+   SINDEX, when passed in, is the offset of the character immediately
+   following the opening single quote; on exit, SINDEX is left pointing
+   to the closing single quote. */
+static void
+hist_string_extract_single_quoted (string, sindex)
+     char *string;
+     int *sindex;
+{
+  register int i;
+
+  for (i = *sindex; string[i] && string[i] != '\''; i++)
+    ;
+
+  *sindex = i;
+}
+
+static char *
+quote_breaks (s)
+     char *s;
+{
+  register char *p, *r;
+  char *ret;
+  int len = 3;
+
+  for (p = s; p && *p; p++, len++)
+    {
+      if (*p == '\'')
+	len += 3;
+      else if (whitespace (*p) || *p == '\n')
+	len += 2;
+    }
+
+  r = ret = xmalloc (len);
+  *r++ = '\'';
+  for (p = s; p && *p; )
+    {
+      if (*p == '\'')
+	{
+	  *r++ = '\'';
+	  *r++ = '\\';
+	  *r++ = '\'';
+	  *r++ = '\'';
+	  p++;
+	}
+      else if (whitespace (*p) || *p == '\n')
+	{
+	  *r++ = '\'';
+	  *r++ = *p++;
+	  *r++ = '\'';
+	}
+      else
+	*r++ = *p++;
+    }
+  *r++ = '\'';
+  *r = '\0';
+  return ret;
+}
+
+static char *
+hist_error(s, start, current, errtype)
+      char *s;
+      int start, current, errtype;
+{
+  char *temp, *emsg;
+  int ll, elen;
+
+  ll = current - start;
+
+  switch (errtype)
+    {
+    case EVENT_NOT_FOUND:
+      emsg = "event not found";
+      elen = 15;
+      break;
+    case BAD_WORD_SPEC:
+      emsg = "bad word specifier";
+      elen = 18;
+      break;
+    case SUBST_FAILED:
+      emsg = "substitution failed";
+      elen = 19;
+      break;
+    case BAD_MODIFIER:
+      emsg = "unrecognized history modifier";
+      elen = 29;
+      break;
+    default:
+      emsg = "unknown expansion error";
+      elen = 23;
+      break;
+    }
+
+  temp = xmalloc (ll + elen + 3);
+  strncpy (temp, s + start, ll);
+  temp[ll] = ':';
+  temp[ll + 1] = ' ';
+  strcpy (temp + ll + 2, emsg);
+  return (temp);
+}
+
+/* Get a history substitution string from STR starting at *IPTR
+   and return it.  The length is returned in LENPTR.
+
+   A backslash can quote the delimiter.  If the string is the
+   empty string, the previous pattern is used.  If there is
+   no previous pattern for the lhs, the last history search
+   string is used.
+
+   If IS_RHS is 1, we ignore empty strings and set the pattern
+   to "" anyway.  subst_lhs is not changed if the lhs is empty;
+   subst_rhs is allowed to be set to the empty string. */
+
+static char *
+get_subst_pattern (str, iptr, delimiter, is_rhs, lenptr)
+     char *str;
+     int *iptr, delimiter, is_rhs, *lenptr;
+{
+  register int si, i, j, k;
+  char *s = (char *) NULL;
+
+  i = *iptr;
+
+  for (si = i; str[si] && str[si] != delimiter; si++)
+    if (str[si] == '\\' && str[si + 1] == delimiter)
+      si++;
+
+  if (si > i || is_rhs)
+    {
+      s = xmalloc (si - i + 1);
+      for (j = 0, k = i; k < si; j++, k++)
+	{
+	  /* Remove a backslash quoting the search string delimiter. */
+	  if (str[k] == '\\' && str[k + 1] == delimiter)
+	    k++;
+	  s[j] = str[k];
+	}
+      s[j] = '\0';
+      if (lenptr)
+	*lenptr = j;
+    }
+
+  i = si;
+  if (str[i])
+    i++;
+  *iptr = i;
+
+  return s;
+}
+
+static void
+postproc_subst_rhs ()
+{
+  char *new;
+  int i, j, new_size;
+
+  new = xmalloc (new_size = subst_rhs_len + subst_lhs_len);
+  for (i = j = 0; i < subst_rhs_len; i++)
+    {
+      if (subst_rhs[i] == '&')
+	{
+	  if (j + subst_lhs_len >= new_size)
+	    new = xrealloc (new, (new_size = new_size * 2 + subst_lhs_len));
+	  strcpy (new + j, subst_lhs);
+	  j += subst_lhs_len;
+	}
+      else
+	{
+	  /* a single backslash protects the `&' from lhs interpolation */
+	  if (subst_rhs[i] == '\\' && subst_rhs[i + 1] == '&')
+	    i++;
+	  if (j >= new_size)
+	    new = xrealloc (new, new_size *= 2);
+	  new[j++] = subst_rhs[i];
+	}
+    }
+  new[j] = '\0';
+  free (subst_rhs);
+  subst_rhs = new;
+  subst_rhs_len = j;
+}
+
+/* Expand the bulk of a history specifier starting at STRING[START].
+   Returns 0 if everything is OK, -1 if an error occurred, and 1
+   if the `p' modifier was supplied and the caller should just print
+   the returned string.  Returns the new index into string in
+   *END_INDEX_PTR, and the expanded specifier in *RET_STRING. */
+static int
+history_expand_internal (string, start, end_index_ptr, ret_string, current_line)
+     char *string;
+     int start, *end_index_ptr;
+     char **ret_string;
+     char *current_line;	/* for !# */
+{
+  int i, n, starting_index;
+  int substitute_globally, want_quotes, print_only;
+  char *event, *temp, *result, *tstr, *t, c, *word_spec;
+  int result_len;
+
+  result = xmalloc (result_len = 128);
+
+  i = start;
+
+  /* If it is followed by something that starts a word specifier,
+     then !! is implied as the event specifier. */
+
+  if (member (string[i + 1], ":$*%^"))
+    {
+      char fake_s[3];
+      int fake_i = 0;
+      i++;
+      fake_s[0] = fake_s[1] = history_expansion_char;
+      fake_s[2] = '\0';
+      event = get_history_event (fake_s, &fake_i, 0);
+    }
+  else if (string[i + 1] == '#')
+    {
+      i += 2;
+      event = current_line;
+    }
+  else
+    {
+      int quoted_search_delimiter = 0;
+
+      /* If the character before this `!' is a double or single
+	 quote, then this expansion takes place inside of the
+	 quoted string.  If we have to search for some text ("!foo"),
+	 allow the delimiter to end the search string. */
+      if (i && (string[i - 1] == '\'' || string[i - 1] == '"'))
+	quoted_search_delimiter = string[i - 1];
+      event = get_history_event (string, &i, quoted_search_delimiter);
+    }
+	  
+  if (event == 0)
+    {
+      *ret_string = hist_error (string, start, i, EVENT_NOT_FOUND);
+      free (result);
+      return (-1);
+    }
+
+  /* If a word specifier is found, then do what that requires. */
+  starting_index = i;
+  word_spec = get_history_word_specifier (string, event, &i);
+
+  /* There is no such thing as a `malformed word specifier'.  However,
+     it is possible for a specifier that has no match.  In that case,
+     we complain. */
+  if (word_spec == (char *)&error_pointer)
+    {
+      *ret_string = hist_error (string, starting_index, i, BAD_WORD_SPEC);
+      free (result);
+      return (-1);
+    }
+
+  /* If no word specifier, than the thing of interest was the event. */
+  temp = word_spec ? savestring (word_spec) : savestring (event);
+  FREE (word_spec);
+
+  /* Perhaps there are other modifiers involved.  Do what they say. */
+  want_quotes = substitute_globally = print_only = 0;
+  starting_index = i;
+
+  while (string[i] == ':')
+    {
+      c = string[i + 1];
+
+      if (c == 'g')
+	{
+	  substitute_globally = 1;
+	  i++;
+	  c = string[i + 1];
+	}
+
+      switch (c)
+	{
+	default:
+	  *ret_string = hist_error (string, i+1, i+2, BAD_MODIFIER);
+	  free (result);
+	  free (temp);
+	  return -1;
+
+	case 'q':
+	  want_quotes = 'q';
+	  break;
+
+	case 'x':
+	  want_quotes = 'x';
+	  break;
+
+	  /* :p means make this the last executed line.  So we
+	     return an error state after adding this line to the
+	     history. */
+	case 'p':
+	  print_only++;
+	  break;
+
+	  /* :t discards all but the last part of the pathname. */
+	case 't':
+	  tstr = strrchr (temp, '/');
+	  if (tstr)
+	    {
+	      tstr++;
+	      t = savestring (tstr);
+	      free (temp);
+	      temp = t;
+	    }
+	  break;
+
+	  /* :h discards the last part of a pathname. */
+	case 'h':
+	  tstr = strrchr (temp, '/');
+	  if (tstr)
+	    *tstr = '\0';
+	  break;
+
+	  /* :r discards the suffix. */
+	case 'r':
+	  tstr = strrchr (temp, '.');
+	  if (tstr)
+	    *tstr = '\0';
+	  break;
+
+	  /* :e discards everything but the suffix. */
+	case 'e':
+	  tstr = strrchr (temp, '.');
+	  if (tstr)
+	    {
+	      t = savestring (tstr);
+	      free (temp);
+	      temp = t;
+	    }
+	  break;
+
+	/* :s/this/that substitutes `that' for the first
+	   occurrence of `this'.  :gs/this/that substitutes `that'
+	   for each occurrence of `this'.  :& repeats the last
+	   substitution.  :g& repeats the last substitution
+	   globally. */
+
+	case '&':
+	case 's':
+	  {
+	    char *new_event, *t;
+	    int delimiter, failed, si, l_temp;
+
+	    if (c == 's')
+	      {
+		if (i + 2 < (int)strlen (string))
+		  delimiter = string[i + 2];
+		else
+		  break;	/* no search delimiter */
+
+		i += 3;
+
+		t = get_subst_pattern (string, &i, delimiter, 0, &subst_lhs_len);
+		/* An empty substitution lhs with no previous substitution
+		   uses the last search string as the lhs. */
+		if (t)
+		  {
+		    FREE (subst_lhs);
+		    subst_lhs = t;
+		  }
+		else if (!subst_lhs)
+		  {
+		    if (search_string && *search_string)
+		      {
+			subst_lhs = savestring (search_string);
+			subst_lhs_len = strlen (subst_lhs);
+		      }
+		    else
+		      {
+			subst_lhs = (char *) NULL;
+			subst_lhs_len = 0;
+		      }
+		  }
+
+		/* If there is no lhs, the substitution can't succeed. */
+		if (subst_lhs_len == 0)
+		  {
+		    *ret_string = hist_error (string, starting_index, i, SUBST_FAILED);
+		    free (result);
+		    free (temp);
+		    return -1;
+		  }
+
+		FREE (subst_rhs);
+		subst_rhs = get_subst_pattern (string, &i, delimiter, 1, &subst_rhs_len);
+
+		/* If `&' appears in the rhs, it's supposed to be replaced
+		   with the lhs. */
+		if (member ('&', subst_rhs))
+		  postproc_subst_rhs ();
+	      }
+	    else
+	      i += 2;
+
+	    l_temp = strlen (temp);
+	    /* Ignore impossible cases. */
+	    if (subst_lhs_len > l_temp)
+	      {
+		*ret_string = hist_error (string, starting_index, i, SUBST_FAILED);
+		free (result);
+		free (temp);
+		return (-1);
+	      }
+
+	    /* Find the first occurrence of THIS in TEMP. */
+	    si = 0;
+	    for (failed = 1; (si + subst_lhs_len) <= l_temp; si++)
+	      if (STREQN (temp+si, subst_lhs, subst_lhs_len))
+		{
+		  int len = subst_rhs_len - subst_lhs_len + l_temp;
+		  new_event = xmalloc (1 + len);
+		  strncpy (new_event, temp, si);
+		  strncpy (new_event + si, subst_rhs, subst_rhs_len);
+		  strncpy (new_event + si + subst_rhs_len,
+			   temp + si + subst_lhs_len,
+			   l_temp - (si + subst_lhs_len));
+		  new_event[len] = '\0';
+		  free (temp);
+		  temp = new_event;
+
+		  failed = 0;
+
+		  if (substitute_globally)
+		    {
+		      si += subst_rhs_len;
+		      l_temp = strlen (temp);
+		      substitute_globally++;
+		      continue;
+		    }
+		  else
+		    break;
+		}
+
+	    if (substitute_globally > 1)
+	      {
+		substitute_globally = 0;
+		continue;	/* don't want to increment i */
+	      }
+
+	    if (failed == 0)
+	      continue;		/* don't want to increment i */
+
+	    *ret_string = hist_error (string, starting_index, i, SUBST_FAILED);
+	    free (result);
+	    free (temp);
+	    return (-1);
+	  }
+	}
+      i += 2;
+    }
+  /* Done with modfiers. */
+  /* Believe it or not, we have to back the pointer up by one. */
+  --i;
+
+  if (want_quotes)
+    {
+      char *x;
+
+      if (want_quotes == 'q')
+	x = single_quote (temp);
+      else if (want_quotes == 'x')
+	x = quote_breaks (temp);
+      else
+	x = savestring (temp);
+
+      free (temp);
+      temp = x;
+    }
+
+  n = strlen (temp);
+  if (n >= result_len)
+    result = xrealloc (result, n + 2);
+  strcpy (result, temp);
+  free (temp);
+
+  *end_index_ptr = i;
+  *ret_string = result;
+  return (print_only);
+}
+
+/* Expand the string STRING, placing the result into OUTPUT, a pointer
+   to a string.  Returns:
+
+  -1) If there was an error in expansion.
+   0) If no expansions took place (or, if the only change in
+      the text was the de-slashifying of the history expansion
+      character)
+   1) If expansions did take place
+   2) If the `p' modifier was given and the caller should print the result
+
+  If an error ocurred in expansion, then OUTPUT contains a descriptive
+  error message. */
+
+#define ADD_STRING(s) \
+	do \
+	  { \
+	    int sl = strlen (s); \
+	    j += sl; \
+	    if (j >= result_len) \
+	      { \
+		while (j >= result_len) \
+		  result_len += 128; \
+		result = xrealloc (result, result_len); \
+	      } \
+	    strcpy (result + j - sl, s); \
+	  } \
+	while (0)
+
+#define ADD_CHAR(c) \
+	do \
+	  { \
+	    if (j >= result_len - 1) \
+	      result = xrealloc (result, result_len += 64); \
+	    result[j++] = c; \
+	    result[j] = '\0'; \
+	  } \
+	while (0)
+
+int
+history_expand (hstring, output)
+     char *hstring;
+     char **output;
+{
+  register int j;
+  int i, r, l, passc, cc, modified, eindex, only_printing;
+  char *string;
+
+  /* The output string, and its length. */
+  int result_len;
+  char *result;
+
+  /* Used when adding the string. */
+  char *temp;
+
+  /* Setting the history expansion character to 0 inhibits all
+     history expansion. */
+  if (history_expansion_char == 0)
+    {
+      *output = savestring (hstring);
+      return (0);
+    }
+    
+  /* Prepare the buffer for printing error messages. */
+  result = xmalloc (result_len = 256);
+  result[0] = '\0';
+
+  only_printing = modified = 0;
+  l = strlen (hstring);
+
+  /* Grovel the string.  Only backslash and single quotes can quote the
+     history escape character.  We also handle arg specifiers. */
+
+  /* Before we grovel forever, see if the history_expansion_char appears
+     anywhere within the text. */
+
+  /* The quick substitution character is a history expansion all right.  That
+     is to say, "^this^that^" is equivalent to "!!:s^this^that^", and in fact,
+     that is the substitution that we do. */
+  if (hstring[0] == history_subst_char)
+    {
+      string = xmalloc (l + 5);
+
+      string[0] = string[1] = history_expansion_char;
+      string[2] = ':';
+      string[3] = 's';
+      strcpy (string + 4, hstring);
+      l += 4;
+    }
+  else
+    {
+      string = hstring;
+      /* If not quick substitution, still maybe have to do expansion. */
+
+      /* `!' followed by one of the characters in history_no_expand_chars
+	 is NOT an expansion. */
+      for (i = 0; string[i]; i++)
+	{
+	  cc = string[i + 1];
+	  /* The history_comment_char, if set, appearing that the beginning
+	     of a word signifies that the rest of the line should not have
+	     history expansion performed on it.
+	     Skip the rest of the line and break out of the loop. */
+	  if (history_comment_char && string[i] == history_comment_char &&
+	      (i == 0 || member (string[i - 1], HISTORY_WORD_DELIMITERS)))
+	    {
+	      while (string[i])
+		i++;
+	      break;
+	    }
+	  else if (string[i] == history_expansion_char)
+	    {
+	      if (!cc || member (cc, history_no_expand_chars))
+		continue;
+	      /* If the calling application has set
+		 history_inhibit_expansion_function to a function that checks
+		 for special cases that should not be history expanded,
+		 call the function and skip the expansion if it returns a
+		 non-zero value. */
+	      else if (history_inhibit_expansion_function &&
+			(*history_inhibit_expansion_function) (string, i))
+		continue;
+	      else
+		break;
+	    }
+	  /* XXX - at some point, might want to extend this to handle
+		   double quotes as well. */
+	  else if (history_quotes_inhibit_expansion && string[i] == '\'')
+	    {
+	      /* If this is bash, single quotes inhibit history expansion. */
+	      i++;
+	      hist_string_extract_single_quoted (string, &i);
+	    }
+	  else if (history_quotes_inhibit_expansion && string[i] == '\\')
+	    {
+	      /* If this is bash, allow backslashes to quote single
+		 quotes and the history expansion character. */
+	      if (cc == '\'' || cc == history_expansion_char)
+		i++;
+	    }
+	}
+	  
+      if (string[i] != history_expansion_char)
+	{
+	  free (result);
+	  *output = savestring (string);
+	  return (0);
+	}
+    }
+
+  /* Extract and perform the substitution. */
+  for (passc = i = j = 0; i < l; i++)
+    {
+      int tchar = string[i];
+
+      if (passc)
+	{
+	  passc = 0;
+	  ADD_CHAR (tchar);
+	  continue;
+	}
+
+      if (tchar == history_expansion_char)
+	tchar = -3;
+      else if (tchar == history_comment_char)
+	tchar = -2;
+
+      switch (tchar)
+	{
+	default:
+	  ADD_CHAR (string[i]);
+	  break;
+
+	case '\\':
+	  passc++;
+	  ADD_CHAR (tchar);
+	  break;
+
+	case '\'':
+	  {
+	    /* If history_quotes_inhibit_expansion is set, single quotes
+	       inhibit history expansion. */
+	    if (history_quotes_inhibit_expansion)
+	      {
+		int quote, slen;
+
+		quote = i++;
+		hist_string_extract_single_quoted (string, &i);
+
+		slen = i - quote + 2;
+		temp = xmalloc (slen);
+		strncpy (temp, string + quote, slen);
+		temp[slen - 1] = '\0';
+		ADD_STRING (temp);
+		free (temp);
+	      }
+	    else
+	      ADD_CHAR (string[i]);
+	    break;
+	  }
+
+	case -2:		/* history_comment_char */
+	  if (i == 0 || member (string[i - 1], HISTORY_WORD_DELIMITERS))
+	    {
+	      temp = xmalloc (l - i + 1);
+	      strcpy (temp, string + i);
+	      ADD_STRING (temp);
+	      free (temp);
+	      i = l;
+	    }
+	  else
+	    ADD_CHAR (string[i]);
+	  break;
+
+	case -3:		/* history_expansion_char */
+	  cc = string[i + 1];
+
+	  /* If the history_expansion_char is followed by one of the
+	     characters in history_no_expand_chars, then it is not a
+	     candidate for expansion of any kind. */
+	  if (member (cc, history_no_expand_chars))
+	    {
+	      ADD_CHAR (string[i]);
+	      break;
+	    }
+
+#if defined (NO_BANG_HASH_MODIFIERS)
+	  /* There is something that is listed as a `word specifier' in csh
+	     documentation which means `the expanded text to this point'.
+	     That is not a word specifier, it is an event specifier.  If we
+	     don't want to allow modifiers with `!#', just stick the current
+	     output line in again. */
+	  if (cc == '#')
+	    {
+	      if (result)
+		{
+		  temp = xmalloc (1 + strlen (result));
+		  strcpy (temp, result);
+		  ADD_STRING (temp);
+		  free (temp);
+		}
+	      i++;
+	      break;
+	    }
+#endif
+
+	  r = history_expand_internal (string, i, &eindex, &temp, result);
+	  if (r < 0)
+	    {
+	      *output = temp;
+	      free (result);
+	      if (string != hstring)
+		free (string);
+	      return -1;
+	    }
+	  else
+	    {
+	      if (temp)
+		{
+		  modified++;
+		  if (*temp)
+		    ADD_STRING (temp);
+		  free (temp);
+		}
+	      only_printing = r == 1;
+	      i = eindex;
+	    }
+	  break;
+	}
+    }
+
+  *output = result;
+  if (string != hstring)
+    free (string);
+
+  if (only_printing)
+    {
+      add_history (result);
+      return (2);
+    }
+
+  return (modified != 0);
+}
+
+/* Return a consed string which is the word specified in SPEC, and found
+   in FROM.  NULL is returned if there is no spec.  The address of
+   ERROR_POINTER is returned if the word specified cannot be found.
+   CALLER_INDEX is the offset in SPEC to start looking; it is updated
+   to point to just after the last character parsed. */
+static char *
+get_history_word_specifier (spec, from, caller_index)
+     char *spec, *from;
+     int *caller_index;
+{
+  register int i = *caller_index;
+  int first, last;
+  int expecting_word_spec = 0;
+  char *result;
+
+  /* The range of words to return doesn't exist yet. */
+  first = last = 0;
+  result = (char *)NULL;
+
+  /* If we found a colon, then this *must* be a word specification.  If
+     it isn't, then it is an error. */
+  if (spec[i] == ':')
+    {
+      i++;
+      expecting_word_spec++;
+    }
+
+  /* Handle special cases first. */
+
+  /* `%' is the word last searched for. */
+  if (spec[i] == '%')
+    {
+      *caller_index = i + 1;
+      return (search_match ? savestring (search_match) : savestring (""));
+    }
+
+  /* `*' matches all of the arguments, but not the command. */
+  if (spec[i] == '*')
+    {
+      *caller_index = i + 1;
+      result = history_arg_extract (1, '$', from);
+      return (result ? result : savestring (""));
+    }
+
+  /* `$' is last arg. */
+  if (spec[i] == '$')
+    {
+      *caller_index = i + 1;
+      return (history_arg_extract ('$', '$', from));
+    }
+
+  /* Try to get FIRST and LAST figured out. */
+
+  if (spec[i] == '-')
+    first = 0;
+  else if (spec[i] == '^')
+    first = 1;
+  else if (_rl_digit_p (spec[i]) && expecting_word_spec)
+    {
+      for (first = 0; _rl_digit_p (spec[i]); i++)
+	first = (first * 10) + _rl_digit_value (spec[i]);
+    }
+  else
+    return ((char *)NULL);	/* no valid `first' for word specifier */
+
+  if (spec[i] == '^' || spec[i] == '*')
+    {
+      last = (spec[i] == '^') ? 1 : '$';	/* x* abbreviates x-$ */
+      i++;
+    }
+  else if (spec[i] != '-')
+    last = first;
+  else
+    {
+      i++;
+
+      if (_rl_digit_p (spec[i]))
+	{
+	  for (last = 0; _rl_digit_p (spec[i]); i++)
+	    last = (last * 10) + _rl_digit_value (spec[i]);
+	}
+      else if (spec[i] == '$')
+	{
+	  i++;
+	  last = '$';
+	}
+      else if (!spec[i] || spec[i] == ':')  /* could be modifier separator */
+	last = -1;		/* x- abbreviates x-$ omitting word `$' */
+    }
+
+  *caller_index = i;
+
+  if (last >= first || last == '$' || last < 0)
+    result = history_arg_extract (first, last, from);
+
+  return (result ? result : (char *)&error_pointer);
+}
+
+/* Extract the args specified, starting at FIRST, and ending at LAST.
+   The args are taken from STRING.  If either FIRST or LAST is < 0,
+   then make that arg count from the right (subtract from the number of
+   tokens, so that FIRST = -1 means the next to last token on the line).
+   If LAST is `$' the last arg from STRING is used. */
+char *
+history_arg_extract (first, last, string)
+     int first, last;
+     char *string;
+{
+  register int i, len;
+  char *result;
+  int size, offset;
+  char **list;
+
+  /* XXX - think about making history_tokenize return a struct array,
+     each struct in array being a string and a length to avoid the
+     calls to strlen below. */
+  if ((list = history_tokenize (string)) == NULL)
+    return ((char *)NULL);
+
+  for (len = 0; list[len]; len++)
+    ;
+
+  if (last < 0)
+    last = len + last - 1;
+
+  if (first < 0)
+    first = len + first - 1;
+
+  if (last == '$')
+    last = len - 1;
+
+  if (first == '$')
+    first = len - 1;
+
+  last++;
+
+  if (first >= len || last > len || first < 0 || last < 0 || first > last)
+    result = ((char *)NULL);
+  else
+    {
+      for (size = 0, i = first; i < last; i++)
+	size += strlen (list[i]) + 1;
+      result = xmalloc (size + 1);
+      result[0] = '\0';
+
+      for (i = first, offset = 0; i < last; i++)
+	{
+	  strcpy (result + offset, list[i]);
+	  offset += strlen (list[i]);
+	  if (i + 1 < last)
+	    {
+      	      result[offset++] = ' ';
+	      result[offset] = 0;
+	    }
+	}
+    }
+
+  for (i = 0; i < len; i++)
+    free (list[i]);
+  free (list);
+
+  return (result);
+}
+
+#define slashify_in_quotes "\\`\"$"
+
+/* Parse STRING into tokens and return an array of strings.  If WIND is
+   not -1 and INDP is not null, we also want the word surrounding index
+   WIND.  The position in the returned array of strings is returned in
+   *INDP. */
+static char **
+history_tokenize_internal (string, wind, indp)
+     char *string;
+     int wind, *indp;
+{
+  char **result;
+  register int i, start, result_index, size;
+  int len, delimiter;
+
+  /* Get a token, and stuff it into RESULT.  The tokens are split
+     exactly where the shell would split them. */
+  for (i = result_index = size = 0, result = (char **)NULL; string[i]; )
+    {
+      delimiter = 0;
+
+      /* Skip leading whitespace. */
+      for (; string[i] && whitespace (string[i]); i++)
+	;
+      if (string[i] == 0 || string[i] == history_comment_char)
+	return (result);
+
+      start = i;
+      
+      if (member (string[i], "()\n"))
+	{
+	  i++;
+	  goto got_token;
+	}
+
+      if (member (string[i], "<>;&|$"))
+	{
+	  int peek = string[i + 1];
+
+	  if (peek == string[i] && peek != '$')
+	    {
+	      if (peek == '<' && string[i + 2] == '-')
+		i++;
+	      i += 2;
+	      goto got_token;
+	    }
+	  else
+	    {
+	      if ((peek == '&' && (string[i] == '>' || string[i] == '<')) ||
+		  ((peek == '>') && (string[i] == '&')) ||
+		  ((peek == '(') && (string[i] == '$')))
+		{
+		  i += 2;
+		  goto got_token;
+		}
+	    }
+	  if (string[i] != '$')
+	    {
+	      i++;
+	      goto got_token;
+	    }
+	}
+
+      /* Get word from string + i; */
+
+      if (member (string[i], HISTORY_QUOTE_CHARACTERS))
+	delimiter = string[i++];
+
+      for (; string[i]; i++)
+	{
+	  if (string[i] == '\\' && string[i + 1] == '\n')
+	    {
+	      i++;
+	      continue;
+	    }
+
+	  if (string[i] == '\\' && delimiter != '\'' &&
+	      (delimiter != '"' || member (string[i], slashify_in_quotes)))
+	    {
+	      i++;
+	      continue;
+	    }
+
+	  if (delimiter && string[i] == delimiter)
+	    {
+	      delimiter = 0;
+	      continue;
+	    }
+
+	  if (!delimiter && (member (string[i], HISTORY_WORD_DELIMITERS)))
+	    break;
+
+	  if (!delimiter && member (string[i], HISTORY_QUOTE_CHARACTERS))
+	    delimiter = string[i];
+	}
+
+    got_token:
+
+      /* If we are looking for the word in which the character at a
+	 particular index falls, remember it. */
+      if (indp && wind != -1 && wind >= start && wind < i)
+        *indp = result_index;
+
+      len = i - start;
+      if (result_index + 2 >= size)
+	result = (char **)xrealloc (result, ((size += 10) * sizeof (char *)));
+      result[result_index] = xmalloc (1 + len);
+      strncpy (result[result_index], string + start, len);
+      result[result_index][len] = '\0';
+      result[++result_index] = (char *)NULL;
+    }
+
+  return (result);
+}
+
+/* Return an array of tokens, much as the shell might.  The tokens are
+   parsed out of STRING. */
+char **
+history_tokenize (string)
+     char *string;
+{
+  return (history_tokenize_internal (string, -1, (int *)NULL));
+}
+
+/* Find and return the word which contains the character at index IND
+   in the history line LINE.  Used to save the word matched by the
+   last history !?string? search. */
+static char *
+history_find_word (line, ind)
+     char *line;
+     int ind;
+{
+  char **words, *s;
+  int i, wind;
+
+  words = history_tokenize_internal (line, ind, &wind);
+  if (wind == -1)
+    return ((char *)NULL);
+  s = words[wind];
+  for (i = 0; i < wind; i++)
+    free (words[i]);
+  for (i = wind + 1; words[i]; i++)
+    free (words[i]);
+  free (words);
+  return s;
+}
diff --git a/readline/histfile.c b/readline/histfile.c
new file mode 100644
index 00000000000..81dda57d0fe
--- /dev/null
+++ b/readline/histfile.c
@@ -0,0 +1,366 @@
+/* histfile.c - functions to manipulate the history file. */
+
+/* Copyright (C) 1989, 1992 Free Software Foundation, Inc.
+
+   This file contains the GNU History Library (the Library), a set of
+   routines for managing the text of previously typed lines.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* The goal is to make the implementation transparent, so that you
+   don't have to know what data types are used, just what functions
+   you can call.  I think I have done that. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+
+#include <sys/types.h>
+#ifndef _MINIX
+#  include <sys/file.h>
+#endif
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif
+
+#if defined (HAVE_STRING_H)
+#  include <string.h>
+#else
+#  include <strings.h>
+#endif /* !HAVE_STRING_H */
+
+#if defined (__EMX__)
+#  ifndef O_BINARY
+#    define O_BINARY 0
+#  endif
+#else /* !__EMX__ */
+   /* If we're not compiling for __EMX__, we don't want this at all.  Ever. */
+#  undef O_BINARY
+#  define O_BINARY 0
+#endif /* !__EMX__ */
+
+#include <errno.h>
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+#include "history.h"
+#include "histlib.h"
+
+/* Functions imported from shell.c */
+extern char *get_env_value ();
+
+extern char *xmalloc (), *xrealloc ();
+
+/* Return the string that should be used in the place of this
+   filename.  This only matters when you don't specify the
+   filename to read_history (), or write_history (). */
+static char *
+history_filename (filename)
+     char *filename;
+{
+  char *return_val, *home;
+  int home_len;
+
+  return_val = filename ? savestring (filename) : (char *)NULL;
+
+  if (return_val)
+    return (return_val);
+  
+  home = get_env_value ("HOME");
+
+  if (home == 0)
+    {
+      home = ".";
+      home_len = 1;
+    }
+  else
+    home_len = strlen (home);
+
+  return_val = xmalloc (2 + home_len + 8); /* strlen(".history") == 8 */
+  strcpy (return_val, home);
+  return_val[home_len] = '/';
+  strcpy (return_val + home_len + 1, ".history");
+
+  return (return_val);
+}
+
+/* Add the contents of FILENAME to the history list, a line at a time.
+   If FILENAME is NULL, then read from ~/.history.  Returns 0 if
+   successful, or errno if not. */
+int
+read_history (filename)
+     char *filename;
+{
+  return (read_history_range (filename, 0, -1));
+}
+
+/* Read a range of lines from FILENAME, adding them to the history list.
+   Start reading at the FROM'th line and end at the TO'th.  If FROM
+   is zero, start at the beginning.  If TO is less than FROM, read
+   until the end of the file.  If FILENAME is NULL, then read from
+   ~/.history.  Returns 0 if successful, or errno if not. */
+int
+read_history_range (filename, from, to)
+     char *filename;
+     int from, to;
+{
+  register int line_start, line_end;
+  char *input, *buffer;
+  int file, current_line;
+  struct stat finfo;
+  size_t file_size;
+
+  buffer = (char *)NULL;
+  input = history_filename (filename);
+  file = open (input, O_RDONLY|O_BINARY, 0666);
+
+  if ((file < 0) || (fstat (file, &finfo) == -1))
+    goto error_and_exit;
+
+  file_size = (size_t)finfo.st_size;
+
+  /* check for overflow on very large files */
+  if (file_size != finfo.st_size || file_size + 1 < file_size)
+    {
+#if defined (EFBIG)
+      errno = EFBIG;
+#endif
+      goto error_and_exit;
+    }
+
+  buffer = xmalloc (file_size + 1);
+  if (read (file, buffer, file_size) != file_size)
+    {
+  error_and_exit:
+      if (file >= 0)
+	close (file);
+
+      FREE (input);
+      FREE (buffer);
+
+      return (errno);
+    }
+
+  close (file);
+
+  /* Set TO to larger than end of file if negative. */
+  if (to < 0)
+    to = file_size;
+
+  /* Start at beginning of file, work to end. */
+  line_start = line_end = current_line = 0;
+
+  /* Skip lines until we are at FROM. */
+  while (line_start < file_size && current_line < from)
+    {
+      for (line_end = line_start; line_end < file_size; line_end++)
+	if (buffer[line_end] == '\n')
+	  {
+	    current_line++;
+	    line_start = line_end + 1;
+	    if (current_line == from)
+	      break;
+	  }
+    }
+
+  /* If there are lines left to gobble, then gobble them now. */
+  for (line_end = line_start; line_end < file_size; line_end++)
+    if (buffer[line_end] == '\n')
+      {
+	buffer[line_end] = '\0';
+
+	if (buffer[line_start])
+	  add_history (buffer + line_start);
+
+	current_line++;
+
+	if (current_line >= to)
+	  break;
+
+	line_start = line_end + 1;
+      }
+
+  FREE (input);
+  FREE (buffer);
+
+  return (0);
+}
+
+/* Truncate the history file FNAME, leaving only LINES trailing lines.
+   If FNAME is NULL, then use ~/.history. */
+int
+history_truncate_file (fname, lines)
+     char *fname;
+     register int lines;
+{
+  register int i;
+  int file, chars_read;
+  char *buffer, *filename;
+  struct stat finfo;
+  size_t file_size;
+
+  buffer = (char *)NULL;
+  filename = history_filename (fname);
+  file = open (filename, O_RDONLY|O_BINARY, 0666);
+
+  if (file == -1 || fstat (file, &finfo) == -1)
+    goto truncate_exit;
+
+  file_size = (size_t)finfo.st_size;
+
+  /* check for overflow on very large files */
+  if (file_size != finfo.st_size || file_size + 1 < file_size)
+    {
+      close (file);
+#if defined (EFBIG)
+      errno = EFBIG;
+#endif
+      goto truncate_exit;
+    }
+
+  buffer = xmalloc (file_size + 1);
+  chars_read = read (file, buffer, file_size);
+  close (file);
+
+  if (chars_read <= 0)
+    goto truncate_exit;
+
+  /* Count backwards from the end of buffer until we have passed
+     LINES lines. */
+  for (i = chars_read - 1; lines && i; i--)
+    {
+      if (buffer[i] == '\n')
+	lines--;
+    }
+
+  /* If this is the first line, then the file contains exactly the
+     number of lines we want to truncate to, so we don't need to do
+     anything.  It's the first line if we don't find a newline between
+     the current value of i and 0.  Otherwise, write from the start of
+     this line until the end of the buffer. */
+  for ( ; i; i--)
+    if (buffer[i] == '\n')
+      {
+	i++;
+	break;
+      }
+
+  /* Write only if there are more lines in the file than we want to
+     truncate to. */
+  if (i && ((file = open (filename, O_WRONLY|O_TRUNC|O_BINARY, 0600)) != -1))
+    {
+      write (file, buffer + i, file_size - i);
+      close (file);
+    }
+
+ truncate_exit:
+
+  FREE (buffer);
+
+  free (filename);
+  return 0;
+}
+
+/* Workhorse function for writing history.  Writes NELEMENT entries
+   from the history list to FILENAME.  OVERWRITE is non-zero if you
+   wish to replace FILENAME with the entries. */
+static int
+history_do_write (filename, nelements, overwrite)
+     char *filename;
+     int nelements, overwrite;
+{
+  register int i;
+  char *output;
+  int file, mode;
+
+  mode = overwrite ? O_WRONLY|O_CREAT|O_TRUNC|O_BINARY : O_WRONLY|O_APPEND|O_BINARY;
+  output = history_filename (filename);
+
+  if ((file = open (output, mode, 0600)) == -1)
+    {
+      FREE (output);
+      return (errno);
+    }
+
+  if (nelements > history_length)
+    nelements = history_length;
+
+  /* Build a buffer of all the lines to write, and write them in one syscall.
+     Suggested by Peter Ho (peter@robosts.oxford.ac.uk). */
+  {
+    HIST_ENTRY **the_history;	/* local */
+    register int j;
+    int buffer_size;
+    char *buffer;
+
+    the_history = history_list ();
+    /* Calculate the total number of bytes to write. */
+    for (buffer_size = 0, i = history_length - nelements; i < history_length; i++)
+      buffer_size += 1 + strlen (the_history[i]->line);
+
+    /* Allocate the buffer, and fill it. */
+    buffer = xmalloc (buffer_size);
+
+    for (j = 0, i = history_length - nelements; i < history_length; i++)
+      {
+	strcpy (buffer + j, the_history[i]->line);
+	j += strlen (the_history[i]->line);
+	buffer[j++] = '\n';
+      }
+
+    write (file, buffer, buffer_size);
+    free (buffer);
+  }
+
+  close (file);
+
+  FREE (output);
+
+  return (0);
+}
+
+/* Append NELEMENT entries to FILENAME.  The entries appended are from
+   the end of the list minus NELEMENTs up to the end of the list. */
+int
+append_history (nelements, filename)
+     int nelements;
+     char *filename;
+{
+  return (history_do_write (filename, nelements, HISTORY_APPEND));
+}
+
+/* Overwrite FILENAME with the current history.  If FILENAME is NULL,
+   then write the history list to ~/.history.  Values returned
+   are as in read_history ().*/
+int
+write_history (filename)
+     char *filename;
+{
+  return (history_do_write (filename, history_length, HISTORY_OVERWRITE));
+}
diff --git a/readline/histlib.h b/readline/histlib.h
new file mode 100644
index 00000000000..10a40d7919b
--- /dev/null
+++ b/readline/histlib.h
@@ -0,0 +1,81 @@
+/* histlib.h -- internal definitions for the history library. */
+/* Copyright (C) 1989, 1992 Free Software Foundation, Inc.
+
+   This file contains the GNU History Library (the Library), a set of
+   routines for managing the text of previously typed lines.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (_HISTLIB_H_)
+#define _HISTLIB_H_
+
+/* Function pointers can be declared as (Function *)foo. */
+#if !defined (_FUNCTION_DEF)
+#  define _FUNCTION_DEF
+typedef int Function ();
+typedef void VFunction ();
+typedef char *CPFunction ();
+typedef char **CPPFunction ();
+#endif /* _FUNCTION_DEF */
+
+#define STREQ(a, b)	(((a)[0] == (b)[0]) && (strcmp ((a), (b)) == 0))
+#define STREQN(a, b, n)	(((a)[0] == (b)[0]) && (strncmp ((a), (b), (n)) == 0))
+
+#ifndef savestring
+#  ifndef strcpy
+extern char *strcpy ();
+#  endif
+#define savestring(x) strcpy (xmalloc (1 + strlen (x)), (x))
+#endif
+
+#ifndef whitespace
+#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
+#endif
+
+#ifndef _rl_digit_p
+#define _rl_digit_p(c)  ((c) >= '0' && (c) <= '9')
+#endif
+
+#ifndef _rl_digit_value
+#define _rl_digit_value(c) ((c) - '0')
+#endif
+
+#ifndef member
+#  ifndef strchr
+extern char *strchr ();
+#  endif
+#define member(c, s) ((c) ? ((char *)strchr ((s), (c)) != (char *)NULL) : 0)
+#endif
+
+#ifndef FREE
+#  define FREE(x)	if (x) free (x)
+#endif
+
+/* Possible history errors passed to hist_error. */
+#define EVENT_NOT_FOUND 0
+#define BAD_WORD_SPEC	1
+#define SUBST_FAILED	2
+#define BAD_MODIFIER	3
+
+/* Possible definitions for history starting point specification. */
+#define ANCHORED_SEARCH 1
+#define NON_ANCHORED_SEARCH 0
+
+/* Possible definitions for what style of writing the history file we want. */
+#define HISTORY_APPEND 0
+#define HISTORY_OVERWRITE 1
+
+#endif /* !_HISTLIB_H_ */
diff --git a/readline/history.c b/readline/history.c
new file mode 100644
index 00000000000..24c5a49c359
--- /dev/null
+++ b/readline/history.c
@@ -0,0 +1,388 @@
+/* History.c -- standalone history library */
+
+/* Copyright (C) 1989, 1992 Free Software Foundation, Inc.
+
+   This file contains the GNU History Library (the Library), a set of
+   routines for managing the text of previously typed lines.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* The goal is to make the implementation transparent, so that you
+   don't have to know what data types are used, just what functions
+   you can call.  I think I have done that. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#if defined (HAVE_UNISTD_H)
+#  ifdef _MINIX
+#    include <sys/types.h>
+#  endif
+#  include <unistd.h>
+#endif
+
+#if defined (HAVE_STRING_H)
+#  include <string.h>
+#else
+#  include <strings.h>
+#endif /* !HAVE_STRING_H */
+
+#include "history.h"
+#include "histlib.h"
+
+extern char *xmalloc (), *xrealloc ();
+
+/* The number of slots to increase the_history by. */
+#define DEFAULT_HISTORY_GROW_SIZE 50
+
+/* **************************************************************** */
+/*								    */
+/*			History Functions			    */
+/*								    */
+/* **************************************************************** */
+
+/* An array of HIST_ENTRY.  This is where we store the history. */
+static HIST_ENTRY **the_history = (HIST_ENTRY **)NULL;
+
+/* Non-zero means that we have enforced a limit on the amount of
+   history that we save. */
+static int history_stifled;
+
+/* If HISTORY_STIFLED is non-zero, then this is the maximum number of
+   entries to remember. */
+int max_input_history;
+
+/* The current location of the interactive history pointer.  Just makes
+   life easier for outside callers. */
+int history_offset;
+
+/* The number of strings currently stored in the history list. */
+int history_length;
+
+/* The current number of slots allocated to the input_history. */
+static int history_size;
+
+/* The logical `base' of the history array.  It defaults to 1. */
+int history_base = 1;
+
+/* Return the current HISTORY_STATE of the history. */
+HISTORY_STATE *
+history_get_history_state ()
+{
+  HISTORY_STATE *state;
+
+  state = (HISTORY_STATE *)xmalloc (sizeof (HISTORY_STATE));
+  state->entries = the_history;
+  state->offset = history_offset;
+  state->length = history_length;
+  state->size = history_size;
+  state->flags = 0;
+  if (history_stifled)
+    state->flags |= HS_STIFLED;
+
+  return (state);
+}
+
+/* Set the state of the current history array to STATE. */
+void
+history_set_history_state (state)
+     HISTORY_STATE *state;
+{
+  the_history = state->entries;
+  history_offset = state->offset;
+  history_length = state->length;
+  history_size = state->size;
+  if (state->flags & HS_STIFLED)
+    history_stifled = 1;
+}
+
+/* Begin a session in which the history functions might be used.  This
+   initializes interactive variables. */
+void
+using_history ()
+{
+  history_offset = history_length;
+}
+
+/* Return the number of bytes that the primary history entries are using.
+   This just adds up the lengths of the_history->lines. */
+int
+history_total_bytes ()
+{
+  register int i, result;
+
+  result = 0;
+
+  for (i = 0; the_history && the_history[i]; i++)
+    result += strlen (the_history[i]->line);
+
+  return (result);
+}
+
+/* Returns the magic number which says what history element we are
+   looking at now.  In this implementation, it returns history_offset. */
+int
+where_history ()
+{
+  return (history_offset);
+}
+
+/* Make the current history item be the one at POS, an absolute index.
+   Returns zero if POS is out of range, else non-zero. */
+int
+history_set_pos (pos)
+     int pos;
+{
+  if (pos > history_length || pos < 0 || !the_history)
+    return (0);
+  history_offset = pos;
+  return (1);
+}
+ 
+/* Return the current history array.  The caller has to be carefull, since this
+   is the actual array of data, and could be bashed or made corrupt easily.
+   The array is terminated with a NULL pointer. */
+HIST_ENTRY **
+history_list ()
+{
+  return (the_history);
+}
+
+/* Return the history entry at the current position, as determined by
+   history_offset.  If there is no entry there, return a NULL pointer. */
+HIST_ENTRY *
+current_history ()
+{
+  return ((history_offset == history_length) || the_history == 0)
+		? (HIST_ENTRY *)NULL
+		: the_history[history_offset];
+}
+
+/* Back up history_offset to the previous history entry, and return
+   a pointer to that entry.  If there is no previous entry then return
+   a NULL pointer. */
+HIST_ENTRY *
+previous_history ()
+{
+  return history_offset ? the_history[--history_offset] : (HIST_ENTRY *)NULL;
+}
+
+/* Move history_offset forward to the next history entry, and return
+   a pointer to that entry.  If there is no next entry then return a
+   NULL pointer. */
+HIST_ENTRY *
+next_history ()
+{
+  return (history_offset == history_length) ? (HIST_ENTRY *)NULL : the_history[++history_offset];
+}
+
+/* Return the history entry which is logically at OFFSET in the history array.
+   OFFSET is relative to history_base. */
+HIST_ENTRY *
+history_get (offset)
+     int offset;
+{
+  int local_index;
+
+  local_index = offset - history_base;
+  return (local_index >= history_length || local_index < 0 || !the_history)
+		? (HIST_ENTRY *)NULL
+		: the_history[local_index];
+}
+
+/* Place STRING at the end of the history list.  The data field
+   is  set to NULL. */
+void
+add_history (string)
+     char *string;
+{
+  HIST_ENTRY *temp;
+
+  if (history_stifled && (history_length == max_input_history))
+    {
+      register int i;
+
+      /* If the history is stifled, and history_length is zero,
+	 and it equals max_input_history, we don't save items. */
+      if (history_length == 0)
+	return;
+
+      /* If there is something in the slot, then remove it. */
+      if (the_history[0])
+	{
+	  free (the_history[0]->line);
+	  free (the_history[0]);
+	}
+
+      /* Copy the rest of the entries, moving down one slot. */
+      for (i = 0; i < history_length; i++)
+	the_history[i] = the_history[i + 1];
+
+      history_base++;
+    }
+  else
+    {
+      if (history_size == 0)
+	{
+	  history_size = DEFAULT_HISTORY_GROW_SIZE;
+	  the_history = (HIST_ENTRY **)xmalloc (history_size * sizeof (HIST_ENTRY *));
+	  history_length = 1;
+	}
+      else
+	{
+	  if (history_length == (history_size - 1))
+	    {
+	      history_size += DEFAULT_HISTORY_GROW_SIZE;
+	      the_history = (HIST_ENTRY **)
+		xrealloc (the_history, history_size * sizeof (HIST_ENTRY *));
+	    }
+	  history_length++;
+	}
+    }
+
+  temp = (HIST_ENTRY *)xmalloc (sizeof (HIST_ENTRY));
+  temp->line = savestring (string);
+  temp->data = (char *)NULL;
+
+  the_history[history_length] = (HIST_ENTRY *)NULL;
+  the_history[history_length - 1] = temp;
+}
+
+/* Make the history entry at WHICH have LINE and DATA.  This returns
+   the old entry so you can dispose of the data.  In the case of an
+   invalid WHICH, a NULL pointer is returned. */
+HIST_ENTRY *
+replace_history_entry (which, line, data)
+     int which;
+     char *line;
+     char *data;
+{
+  HIST_ENTRY *temp = (HIST_ENTRY *)xmalloc (sizeof (HIST_ENTRY));
+  HIST_ENTRY *old_value;
+
+  if (which >= history_length)
+    return ((HIST_ENTRY *)NULL);
+
+  old_value = the_history[which];
+
+  temp->line = savestring (line);
+  temp->data = data;
+  the_history[which] = temp;
+
+  return (old_value);
+}
+
+/* Remove history element WHICH from the history.  The removed
+   element is returned to you so you can free the line, data,
+   and containing structure. */
+HIST_ENTRY *
+remove_history (which)
+     int which;
+{
+  HIST_ENTRY *return_value;
+
+  if (which >= history_length || !history_length)
+    return_value = (HIST_ENTRY *)NULL;
+  else
+    {
+      register int i;
+      return_value = the_history[which];
+
+      for (i = which; i < history_length; i++)
+	the_history[i] = the_history[i + 1];
+
+      history_length--;
+    }
+
+  return (return_value);
+}
+
+/* Stifle the history list, remembering only MAX number of lines. */
+void
+stifle_history (max)
+     int max;
+{
+  if (max < 0)
+    max = 0;
+
+  if (history_length > max)
+    {
+      register int i, j;
+
+      /* This loses because we cannot free the data. */
+      for (i = 0, j = history_length - max; i < j; i++)
+	{
+	  free (the_history[i]->line);
+	  free (the_history[i]);
+	}
+
+      history_base = i;
+      for (j = 0, i = history_length - max; j < max; i++, j++)
+	the_history[j] = the_history[i];
+      the_history[j] = (HIST_ENTRY *)NULL;
+      history_length = j;
+    }
+
+  history_stifled = 1;
+  max_input_history = max;
+}
+
+/* Stop stifling the history.  This returns the previous amount the 
+   history was stifled by.  The value is positive if the history was
+   stifled,  negative if it wasn't. */
+int
+unstifle_history ()
+{
+  if (history_stifled)
+    {
+      history_stifled = 0;
+      return (-max_input_history);
+    }
+
+  return (max_input_history);
+}
+
+int
+history_is_stifled ()
+{
+  return (history_stifled);
+}
+
+void
+clear_history ()
+{
+  register int i;
+
+  /* This loses because we cannot free the data. */
+  for (i = 0; i < history_length; i++)
+    {
+      free (the_history[i]->line);
+      free (the_history[i]);
+      the_history[i] = (HIST_ENTRY *)NULL;
+    }
+
+  history_offset = history_length = 0;
+}
diff --git a/readline/history.h b/readline/history.h
new file mode 100644
index 00000000000..e49a341492f
--- /dev/null
+++ b/readline/history.h
@@ -0,0 +1,223 @@
+/* History.h -- the names of functions that you can call in history. */
+/* Copyright (C) 1989, 1992 Free Software Foundation, Inc.
+
+   This file contains the GNU History Library (the Library), a set of
+   routines for managing the text of previously typed lines.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#ifndef _HISTORY_H_
+#define _HISTORY_H_
+
+#if !defined (_FUNCTION_DEF)
+#  define _FUNCTION_DEF
+typedef int Function ();
+typedef void VFunction ();
+typedef char *CPFunction ();
+typedef char **CPPFunction ();
+#endif
+
+/* The structure used to store a history entry. */
+typedef struct _hist_entry {
+  char *line;
+  char *data;
+} HIST_ENTRY;
+
+/* A structure used to pass the current state of the history stuff around. */
+typedef struct _hist_state {
+  HIST_ENTRY **entries;		/* Pointer to the entries themselves. */
+  int offset;			/* The location pointer within this array. */
+  int length;			/* Number of elements within this array. */
+  int size;			/* Number of slots allocated to this array. */
+  int flags;
+} HISTORY_STATE;
+
+/* Flag values for the `flags' member of HISTORY_STATE. */
+#define HS_STIFLED	0x01
+
+/* Initialization and state management. */
+
+/* Begin a session in which the history functions might be used.  This
+   just initializes the interactive variables. */
+extern void using_history ();
+
+/* Return the current HISTORY_STATE of the history. */
+extern HISTORY_STATE *history_get_history_state ();
+
+/* Set the state of the current history array to STATE. */
+extern void history_set_history_state ();
+
+/* Manage the history list. */
+
+/* Place STRING at the end of the history list.
+   The associated data field (if any) is set to NULL. */
+extern void add_history ();
+
+/* A reasonably useless function, only here for completeness.  WHICH
+   is the magic number that tells us which element to delete.  The
+   elements are numbered from 0. */
+extern HIST_ENTRY *remove_history ();
+
+/* Make the history entry at WHICH have LINE and DATA.  This returns
+   the old entry so you can dispose of the data.  In the case of an
+   invalid WHICH, a NULL pointer is returned. */
+extern HIST_ENTRY *replace_history_entry ();
+
+/* Clear the history list and start over. */
+extern void clear_history ();
+
+/* Stifle the history list, remembering only MAX number of entries. */
+extern void stifle_history ();
+
+/* Stop stifling the history.  This returns the previous amount the
+   history was stifled by.  The value is positive if the history was
+   stifled, negative if it wasn't. */
+extern int unstifle_history ();
+
+/* Return 1 if the history is stifled, 0 if it is not. */
+extern int history_is_stifled ();
+
+/* Information about the history list. */
+
+/* Return a NULL terminated array of HIST_ENTRY which is the current input
+   history.  Element 0 of this list is the beginning of time.  If there
+   is no history, return NULL. */
+extern HIST_ENTRY **history_list ();
+
+/* Returns the number which says what history element we are now
+   looking at.  */
+extern int where_history ();
+  
+/* Return the history entry at the current position, as determined by
+   history_offset.  If there is no entry there, return a NULL pointer. */
+HIST_ENTRY *current_history ();
+
+/* Return the history entry which is logically at OFFSET in the history
+   array.  OFFSET is relative to history_base. */
+extern HIST_ENTRY *history_get ();
+
+/* Return the number of bytes that the primary history entries are using.
+   This just adds up the lengths of the_history->lines. */
+extern int history_total_bytes ();
+
+/* Moving around the history list. */
+
+/* Set the position in the history list to POS. */
+int history_set_pos ();
+
+/* Back up history_offset to the previous history entry, and return
+   a pointer to that entry.  If there is no previous entry, return
+   a NULL pointer. */
+extern HIST_ENTRY *previous_history ();
+
+/* Move history_offset forward to the next item in the input_history,
+   and return the a pointer to that entry.  If there is no next entry,
+   return a NULL pointer. */
+extern HIST_ENTRY *next_history ();
+
+/* Searching the history list. */
+
+/* Search the history for STRING, starting at history_offset.
+   If DIRECTION < 0, then the search is through previous entries,
+   else through subsequent.  If the string is found, then
+   current_history () is the history entry, and the value of this function
+   is the offset in the line of that history entry that the string was
+   found in.  Otherwise, nothing is changed, and a -1 is returned. */
+extern int history_search ();
+
+/* Search the history for STRING, starting at history_offset.
+   The search is anchored: matching lines must begin with string. */
+extern int history_search_prefix ();
+
+/* Search for STRING in the history list, starting at POS, an
+   absolute index into the list.  DIR, if negative, says to search
+   backwards from POS, else forwards.
+   Returns the absolute index of the history element where STRING
+   was found, or -1 otherwise. */
+extern int history_search_pos ();
+
+/* Managing the history file. */
+
+/* Add the contents of FILENAME to the history list, a line at a time.
+   If FILENAME is NULL, then read from ~/.history.  Returns 0 if
+   successful, or errno if not. */
+extern int read_history ();
+
+/* Read a range of lines from FILENAME, adding them to the history list.
+   Start reading at the FROM'th line and end at the TO'th.  If FROM
+   is zero, start at the beginning.  If TO is less than FROM, read
+   until the end of the file.  If FILENAME is NULL, then read from
+   ~/.history.  Returns 0 if successful, or errno if not. */
+extern int read_history_range ();
+
+/* Write the current history to FILENAME.  If FILENAME is NULL,
+   then write the history list to ~/.history.  Values returned
+   are as in read_history ().  */
+extern int write_history ();
+
+/* Append NELEMENT entries to FILENAME.  The entries appended are from
+   the end of the list minus NELEMENTs up to the end of the list. */
+int append_history ();
+
+/* Truncate the history file, leaving only the last NLINES lines. */
+extern int history_truncate_file ();
+
+/* History expansion. */
+
+/* Expand the string STRING, placing the result into OUTPUT, a pointer
+   to a string.  Returns:
+
+   0) If no expansions took place (or, if the only change in
+      the text was the de-slashifying of the history expansion
+      character)
+   1) If expansions did take place
+  -1) If there was an error in expansion.
+   2) If the returned line should just be printed.
+
+  If an error ocurred in expansion, then OUTPUT contains a descriptive
+  error message. */
+extern int history_expand ();
+
+/* Extract a string segment consisting of the FIRST through LAST
+   arguments present in STRING.  Arguments are broken up as in
+   the shell. */
+extern char *history_arg_extract ();
+
+/* Return the text of the history event beginning at the current
+   offset into STRING. */
+extern char *get_history_event ();
+
+/* Return an array of tokens, much as the shell might.  The tokens are
+   parsed out of STRING. */
+extern char **history_tokenize ();
+
+/* Exported history variables. */
+extern int history_base;
+extern int history_length;
+extern int max_input_history;
+extern char history_expansion_char;
+extern char history_subst_char;
+extern char history_comment_char;
+extern char *history_no_expand_chars;
+extern char *history_search_delimiter_chars;
+extern int history_quotes_inhibit_expansion;
+
+/* If set, this function is called to decide whether or not a particular
+   history expansion should be treated as a special case for the calling
+   application and not expanded. */
+extern Function *history_inhibit_expansion_function;
+
+#endif /* !_HISTORY_H_ */
diff --git a/readline/histsearch.c b/readline/histsearch.c
new file mode 100644
index 00000000000..7e98e950acb
--- /dev/null
+++ b/readline/histsearch.c
@@ -0,0 +1,200 @@
+/* histsearch.c -- searching the history list. */
+
+/* Copyright (C) 1989, 1992 Free Software Foundation, Inc.
+
+   This file contains the GNU History Library (the Library), a set of
+   routines for managing the text of previously typed lines.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+#if defined (HAVE_UNISTD_H)
+#  ifdef _MINIX
+#    include <sys/types.h>
+#  endif
+#  include <unistd.h>
+#endif
+#if defined (HAVE_STRING_H)
+#  include <string.h>
+#else
+#  include <strings.h>
+#endif /* !HAVE_STRING_H */
+
+#include "history.h"
+#include "histlib.h"
+
+/* Variables imported from other history library files. */
+extern int history_offset;
+
+/* The list of alternate characters that can delimit a history search
+   string. */
+char *history_search_delimiter_chars = (char *)NULL;
+
+/* Search the history for STRING, starting at history_offset.
+   If DIRECTION < 0, then the search is through previous entries, else
+   through subsequent.  If ANCHORED is non-zero, the string must
+   appear at the beginning of a history line, otherwise, the string
+   may appear anywhere in the line.  If the string is found, then
+   current_history () is the history entry, and the value of this
+   function is the offset in the line of that history entry that the
+   string was found in.  Otherwise, nothing is changed, and a -1 is
+   returned. */
+
+static int
+history_search_internal (string, direction, anchored)
+     char *string;
+     int direction, anchored;
+{
+  register int i, reverse;
+  register char *line;
+  register int line_index;
+  int string_len;
+  HIST_ENTRY **the_history; 	/* local */
+
+  i = history_offset;
+  reverse = (direction < 0);
+
+  /* Take care of trivial cases first. */
+  if (string == 0 || *string == '\0')
+    return (-1);
+
+  if (!history_length || ((i == history_length) && !reverse))
+    return (-1);
+
+  if (reverse && (i == history_length))
+    i--;
+
+#define NEXT_LINE() do { if (reverse) i--; else i++; } while (0)
+
+  the_history = history_list ();
+  string_len = strlen (string);
+  while (1)
+    {
+      /* Search each line in the history list for STRING. */
+
+      /* At limit for direction? */
+      if ((reverse && i < 0) || (!reverse && i == history_length))
+	return (-1);
+
+      line = the_history[i]->line;
+      line_index = strlen (line);
+
+      /* If STRING is longer than line, no match. */
+      if (string_len > line_index)
+	{
+	  NEXT_LINE ();
+	  continue;
+	}
+
+      /* Handle anchored searches first. */
+      if (anchored == ANCHORED_SEARCH)
+	{
+	  if (STREQN (string, line, string_len))
+	    {
+	      history_offset = i;
+	      return (0);
+	    }
+
+	  NEXT_LINE ();
+	  continue;
+	}
+
+      /* Do substring search. */
+      if (reverse)
+	{
+	  line_index -= string_len;
+
+	  while (line_index >= 0)
+	    {
+	      if (STREQN (string, line + line_index, string_len))
+		{
+		  history_offset = i;
+		  return (line_index);
+		}
+	      line_index--;
+	    }
+	}
+      else
+	{
+	  register int limit;
+
+	  limit = line_index - string_len + 1;
+	  line_index = 0;
+
+	  while (line_index < limit)
+	    {
+	      if (STREQN (string, line + line_index, string_len))
+		{
+		  history_offset = i;
+		  return (line_index);
+		}
+	      line_index++;
+	    }
+	}
+      NEXT_LINE ();
+    }
+}
+
+/* Do a non-anchored search for STRING through the history in DIRECTION. */
+int
+history_search (string, direction)
+     char *string;
+     int direction;
+{
+  return (history_search_internal (string, direction, NON_ANCHORED_SEARCH));
+}
+
+/* Do an anchored search for string through the history in DIRECTION. */
+int
+history_search_prefix (string, direction)
+     char *string;
+     int direction;
+{
+  return (history_search_internal (string, direction, ANCHORED_SEARCH));
+}
+
+/* Search for STRING in the history list.  DIR is < 0 for searching
+   backwards.  POS is an absolute index into the history list at
+   which point to begin searching. */
+int
+history_search_pos (string, dir, pos)
+     char *string;
+     int dir, pos;
+{
+  int ret, old;
+
+  old = where_history ();
+  history_set_pos (pos);
+  if (history_search (string, dir) == -1)
+    {
+      history_set_pos (old);
+      return (-1);
+    }
+  ret = where_history ();
+  history_set_pos (old);
+  return ret;
+}
diff --git a/readline/input.c b/readline/input.c
new file mode 100644
index 00000000000..7e3c0feb5ce
--- /dev/null
+++ b/readline/input.c
@@ -0,0 +1,449 @@
+/* input.c -- character input functions for readline. */
+
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 2, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+#include <fcntl.h>
+#if defined (HAVE_SYS_FILE_H)
+#  include <sys/file.h>
+#endif /* HAVE_SYS_FILE_H */
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#if defined (HAVE_SELECT)
+#  if !defined (HAVE_SYS_SELECT_H) || !defined (M_UNIX)
+#    include <sys/time.h>
+#  endif
+#endif /* HAVE_SELECT */
+#if defined (HAVE_SYS_SELECT_H)
+#  include <sys/select.h>
+#endif
+
+#if defined (FIONREAD_IN_SYS_IOCTL)
+#  include <sys/ioctl.h>
+#endif
+
+#include <stdio.h>
+#include <errno.h>
+
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+
+/* What kind of non-blocking I/O do we have? */
+#if !defined (O_NDELAY) && defined (O_NONBLOCK)
+#  define O_NDELAY O_NONBLOCK	/* Posix style */
+#endif
+
+/* Functions imported from other files in the library. */
+extern char *xmalloc (), *xrealloc ();
+
+/* Variables and functions from macro.c. */
+extern void _rl_add_macro_char ();
+extern void _rl_with_macro_input ();
+extern int _rl_next_macro_key ();
+extern int _rl_defining_kbd_macro;
+
+#if defined (VI_MODE)
+extern void _rl_vi_set_last ();
+extern int _rl_vi_textmod_command ();
+#endif /* VI_MODE */
+
+extern FILE *rl_instream, *rl_outstream;
+extern Function *rl_last_func;
+extern int rl_key_sequence_length;
+extern int rl_pending_input;
+extern int rl_editing_mode;
+
+extern Keymap _rl_keymap;
+
+extern int _rl_convert_meta_chars_to_ascii;
+
+#if defined (__GO32__)
+#  include <pc.h>
+#endif /* __GO32__ */
+
+/* Non-null means it is a pointer to a function to run while waiting for
+   character input. */
+Function *rl_event_hook = (Function *)NULL;
+
+Function *rl_getc_function = rl_getc;
+
+/* **************************************************************** */
+/*								    */
+/*			Character Input Buffering       	    */
+/*								    */
+/* **************************************************************** */
+
+static int pop_index, push_index;
+static unsigned char ibuffer[512];
+static int ibuffer_len = sizeof (ibuffer) - 1;
+
+#define any_typein (push_index != pop_index)
+
+int
+_rl_any_typein ()
+{
+  return any_typein;
+}
+
+/* Add KEY to the buffer of characters to be read. */
+int
+rl_stuff_char (key)
+     int key;
+{
+  if (key == EOF)
+    {
+      key = NEWLINE;
+      rl_pending_input = EOF;
+    }
+  ibuffer[push_index++] = key;
+  if (push_index >= ibuffer_len)
+    push_index = 0;
+  return push_index;
+}
+
+/* Make C be the next command to be executed. */
+int
+rl_execute_next (c)
+     int c;
+{
+  rl_pending_input = c;
+  return 0;
+}
+
+/* Return the amount of space available in the
+   buffer for stuffing characters. */
+static int
+ibuffer_space ()
+{
+  if (pop_index > push_index)
+    return (pop_index - push_index);
+  else
+    return (ibuffer_len - (push_index - pop_index));
+}
+
+/* Get a key from the buffer of characters to be read.
+   Return the key in KEY.
+   Result is KEY if there was a key, or 0 if there wasn't. */
+static int
+rl_get_char (key)
+     int *key;
+{
+  if (push_index == pop_index)
+    return (0);
+
+  *key = ibuffer[pop_index++];
+
+  if (pop_index >= ibuffer_len)
+    pop_index = 0;
+
+  return (1);
+}
+
+/* Stuff KEY into the *front* of the input buffer.
+   Returns non-zero if successful, zero if there is
+   no space left in the buffer. */
+static int
+rl_unget_char (key)
+     int key;
+{
+  if (ibuffer_space ())
+    {
+      pop_index--;
+      if (pop_index < 0)
+	pop_index = ibuffer_len - 1;
+      ibuffer[pop_index] = key;
+      return (1);
+    }
+  return (0);
+}
+
+/* If a character is available to be read, then read it
+   and stuff it into IBUFFER.  Otherwise, just return. */
+static void
+rl_gather_tyi ()
+{
+#if defined (__GO32__)
+  char input;
+
+  if (isatty (0) && kbhit () && ibuffer_space ())
+    {
+      int i;
+      i = (*rl_getc_function) (rl_instream);
+      rl_stuff_char (i);
+    }
+#else /* !__GO32__ */
+
+  int tty;
+  register int tem, result;
+  int chars_avail;
+  char input;
+#if defined(HAVE_SELECT)
+  fd_set readfds, exceptfds;
+  struct timeval timeout;
+#endif
+
+  tty = fileno (rl_instream);
+
+#if defined (HAVE_SELECT)
+  FD_ZERO (&readfds);
+  FD_ZERO (&exceptfds);
+  FD_SET (tty, &readfds);
+  FD_SET (tty, &exceptfds);
+  timeout.tv_sec = 0;
+  timeout.tv_usec = 100000;	/* 0.1 seconds */
+  if (select (tty + 1, &readfds, (fd_set *)NULL, &exceptfds, &timeout) <= 0)
+    return;	/* Nothing to read. */
+#endif
+
+  result = -1;
+#if defined (FIONREAD)
+  result = ioctl (tty, FIONREAD, &chars_avail);
+#endif
+
+#if defined (O_NDELAY)
+  if (result == -1)
+    {
+      tem = fcntl (tty, F_GETFL, 0);
+
+      fcntl (tty, F_SETFL, (tem | O_NDELAY));
+      chars_avail = read (tty, &input, 1);
+
+      fcntl (tty, F_SETFL, tem);
+      if (chars_avail == -1 && errno == EAGAIN)
+	return;
+    }
+#endif /* O_NDELAY */
+
+  /* If there's nothing available, don't waste time trying to read
+     something. */
+  if (chars_avail <= 0)
+    return;
+
+  tem = ibuffer_space ();
+
+  if (chars_avail > tem)
+    chars_avail = tem;
+
+  /* One cannot read all of the available input.  I can only read a single
+     character at a time, or else programs which require input can be
+     thwarted.  If the buffer is larger than one character, I lose.
+     Damn! */
+  if (tem < ibuffer_len)
+    chars_avail = 0;
+
+  if (result != -1)
+    {
+      while (chars_avail--)
+	rl_stuff_char ((*rl_getc_function) (rl_instream));
+    }
+  else
+    {
+      if (chars_avail)
+	rl_stuff_char (input);
+    }
+#endif /* !__GO32__ */
+}
+
+/* Is there input available to be read on the readline input file
+   descriptor?  Only works if the system has select(2) or FIONREAD. */
+int
+_rl_input_available ()
+{
+#if defined(HAVE_SELECT)
+  fd_set readfds, exceptfds;
+  struct timeval timeout;
+#endif
+#if defined(FIONREAD)
+  int chars_avail;
+#endif
+  int tty;
+
+  tty = fileno (rl_instream);
+
+#if defined (HAVE_SELECT)
+  FD_ZERO (&readfds);
+  FD_ZERO (&exceptfds);
+  FD_SET (tty, &readfds);
+  FD_SET (tty, &exceptfds);
+  timeout.tv_sec = 0;
+  timeout.tv_usec = 100000;	/* 0.1 seconds */
+  return (select (tty + 1, &readfds, (fd_set *)NULL, &exceptfds, &timeout) > 0);
+#endif
+
+#if defined (FIONREAD)
+  if (ioctl (tty, FIONREAD, &chars_avail) == 0)
+    return (chars_avail);
+#endif
+
+  return 0;
+}
+
+void
+_rl_insert_typein (c)
+     int c;     
+{    	
+  int key, t, i;
+  char *string;
+
+  i = key = 0;
+  string = xmalloc (ibuffer_len + 1);
+  string[i++] = (char) c;
+
+  while ((t = rl_get_char (&key)) &&
+	 _rl_keymap[key].type == ISFUNC &&
+	 _rl_keymap[key].function == rl_insert)
+    string[i++] = key;
+
+  if (t)
+    rl_unget_char (key);
+
+  string[i] = '\0';
+  rl_insert_text (string);
+  free (string);
+}
+
+/* **************************************************************** */
+/*								    */
+/*			     Character Input			    */
+/*								    */
+/* **************************************************************** */
+
+/* Read a key, including pending input. */
+int
+rl_read_key ()
+{
+  int c;
+
+  rl_key_sequence_length++;
+
+  if (rl_pending_input)
+    {
+      c = rl_pending_input;
+      rl_pending_input = 0;
+    }
+  else
+    {
+      /* If input is coming from a macro, then use that. */
+      if (c = _rl_next_macro_key ())
+	return (c);
+
+      /* If the user has an event function, then call it periodically. */
+      if (rl_event_hook)
+	{
+	  while (rl_event_hook && rl_get_char (&c) == 0)
+	    {
+	      (*rl_event_hook) ();
+	      rl_gather_tyi ();
+	    }
+	}
+      else
+	{
+	  if (rl_get_char (&c) == 0)
+	    c = (*rl_getc_function) (rl_instream);
+	}
+    }
+
+  return (c);
+}
+
+int
+rl_getc (stream)
+     FILE *stream;
+{
+  int result, flags;
+  unsigned char c;
+
+#if defined (__GO32__)
+  if (isatty (0))
+    return (getkey () & 0x7F);
+#endif /* __GO32__ */
+
+  while (1)
+    {
+      result = read (fileno (stream), &c, sizeof (unsigned char));
+
+      if (result == sizeof (unsigned char))
+	return (c);
+
+      /* If zero characters are returned, then the file that we are
+	 reading from is empty!  Return EOF in that case. */
+      if (result == 0)
+	return (EOF);
+
+#if defined (EWOULDBLOCK)
+      if (errno == EWOULDBLOCK)
+	{
+	  if ((flags = fcntl (fileno (stream), F_GETFL, 0)) < 0)
+	    return (EOF);
+	  if (flags & O_NDELAY)
+	    {
+	      flags &= ~O_NDELAY;
+	      fcntl (fileno (stream), F_SETFL, flags);
+	      continue;
+	    }
+	  continue;
+	}
+#endif /* EWOULDBLOCK */
+
+#if defined (_POSIX_VERSION) && defined (EAGAIN) && defined (O_NONBLOCK)
+      if (errno == EAGAIN)
+	{
+	  if ((flags = fcntl (fileno (stream), F_GETFL, 0)) < 0)
+	    return (EOF);
+	  if (flags & O_NONBLOCK)
+	    {
+	      flags &= ~O_NONBLOCK;
+	      fcntl (fileno (stream), F_SETFL, flags);
+	      continue;
+	    }
+	}
+#endif /* _POSIX_VERSION && EAGAIN && O_NONBLOCK */
+
+#if !defined (__GO32__)
+      /* If the error that we received was SIGINT, then try again,
+	 this is simply an interrupted system call to read ().
+	 Otherwise, some error ocurred, also signifying EOF. */
+      if (errno != EINTR)
+	return (EOF);
+#endif /* !__GO32__ */
+    }
+}
diff --git a/readline/isearch.c b/readline/isearch.c
new file mode 100644
index 00000000000..7decf9595b0
--- /dev/null
+++ b/readline/isearch.c
@@ -0,0 +1,433 @@
+/* **************************************************************** */
+/*								    */
+/*			I-Search and Searching			    */
+/*								    */
+/* **************************************************************** */
+
+/* Copyright (C) 1987,1989 Free Software Foundation, Inc.
+
+   This file contains the Readline Library (the Library), a set of
+   routines for providing Emacs style line input to programs that ask
+   for it.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+
+#include <stdio.h>
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif
+
+#include "rldefs.h"
+#include "readline.h"
+#include "history.h"
+
+/* Variables imported from other files in the readline library. */
+extern Keymap _rl_keymap;
+extern HIST_ENTRY *saved_line_for_history;
+extern int rl_line_buffer_len;
+extern int rl_point, rl_end;
+extern char *rl_line_buffer;
+
+extern void _rl_save_prompt ();
+extern void _rl_restore_prompt ();
+
+extern int rl_execute_next ();
+extern void rl_extend_line_buffer ();
+
+extern int _rl_input_available ();
+
+extern char *xmalloc (), *xrealloc ();
+
+static int rl_search_history ();
+
+/* Last line found by the current incremental search, so we don't `find'
+   identical lines many times in a row. */
+static char *prev_line_found;
+
+/* Search backwards through the history looking for a string which is typed
+   interactively.  Start with the current line. */
+int
+rl_reverse_search_history (sign, key)
+     int sign, key;
+{
+  return (rl_search_history (-sign, key));
+}
+
+/* Search forwards through the history looking for a string which is typed
+   interactively.  Start with the current line. */
+int
+rl_forward_search_history (sign, key)
+     int sign, key;
+{
+  return (rl_search_history (sign, key));
+}
+
+/* Display the current state of the search in the echo-area.
+   SEARCH_STRING contains the string that is being searched for,
+   DIRECTION is zero for forward, or 1 for reverse,
+   WHERE is the history list number of the current line.  If it is
+   -1, then this line is the starting one. */
+static void
+rl_display_search (search_string, reverse_p, where)
+     char *search_string;
+     int reverse_p, where;
+{
+  char *message;
+  int msglen, searchlen;
+
+  searchlen = (search_string && *search_string) ? strlen (search_string) : 0;
+
+  message = xmalloc (searchlen + 33);
+  msglen = 0;
+
+#if defined (NOTDEF)
+  if (where != -1)
+    {
+      sprintf (message, "[%d]", where + history_base);
+      msglen = strlen (message);
+    }
+#endif /* NOTDEF */
+
+  message[msglen++] = '(';
+
+  if (reverse_p)
+    {
+      strcpy (message + msglen, "reverse-");
+      msglen += 8;
+    }
+
+  strcpy (message + msglen, "i-search)`");
+  msglen += 10;
+
+  if (search_string)
+    {
+      strcpy (message + msglen, search_string);
+      msglen += searchlen;
+    }
+
+  strcpy (message + msglen, "': ");
+
+  rl_message ("%s", message, 0);
+  free (message);
+  (*rl_redisplay_function) ();
+}
+
+/* Search through the history looking for an interactively typed string.
+   This is analogous to i-search.  We start the search in the current line.
+   DIRECTION is which direction to search; >= 0 means forward, < 0 means
+   backwards. */
+static int
+rl_search_history (direction, invoking_key)
+     int direction, invoking_key;
+{
+  /* The string that the user types in to search for. */
+  char *search_string;
+
+  /* The current length of SEARCH_STRING. */
+  int search_string_index;
+
+  /* The amount of space that SEARCH_STRING has allocated to it. */
+  int search_string_size;
+
+  /* The list of lines to search through. */
+  char **lines, *allocated_line;
+
+  /* The length of LINES. */
+  int hlen;
+
+  /* Where we get LINES from. */
+  HIST_ENTRY **hlist;
+
+  register int i;
+  int orig_point, orig_line, last_found_line;
+  int c, found, failed, sline_len;
+
+  /* The line currently being searched. */
+  char *sline;
+
+  /* Offset in that line. */
+  int line_index;
+
+  /* Non-zero if we are doing a reverse search. */
+  int reverse;
+
+  orig_point = rl_point;
+  last_found_line = orig_line = where_history ();
+  reverse = direction < 0;
+  hlist = history_list ();
+  allocated_line = (char *)NULL;
+
+  /* Create an arrary of pointers to the lines that we want to search. */
+  maybe_replace_line ();
+  i = 0;
+  if (hlist)
+    for (i = 0; hlist[i]; i++);
+
+  /* Allocate space for this many lines, +1 for the current input line,
+     and remember those lines. */
+  lines = (char **)xmalloc ((1 + (hlen = i)) * sizeof (char *));
+  for (i = 0; i < hlen; i++)
+    lines[i] = hlist[i]->line;
+
+  if (saved_line_for_history)
+    lines[i] = saved_line_for_history->line;
+  else
+    {
+      /* Keep track of this so we can free it. */
+      allocated_line = xmalloc (1 + strlen (rl_line_buffer));
+      strcpy (allocated_line, &rl_line_buffer[0]);
+      lines[i] = allocated_line;
+    }
+
+  hlen++;
+
+  /* The line where we start the search. */
+  i = orig_line;
+
+  _rl_save_prompt ();
+
+  /* Initialize search parameters. */
+  search_string = xmalloc (search_string_size = 128);
+  *search_string = '\0';
+  search_string_index = 0;
+  prev_line_found = (char *)0;		/* XXX */
+
+  /* Normalize DIRECTION into 1 or -1. */
+  direction = (direction >= 0) ? 1 : -1;
+
+  rl_display_search (search_string, reverse, -1);
+
+  sline = rl_line_buffer;
+  sline_len = strlen (sline);
+  line_index = rl_point;
+
+  found = failed = 0;
+  for (;;)
+    {
+      Function *f = (Function *)NULL;
+
+      /* Read a key and decide how to proceed. */
+      c = rl_read_key ();
+
+      if (_rl_keymap[c].type == ISFUNC)
+	{
+	  f = _rl_keymap[c].function;
+
+	  if (f == rl_reverse_search_history)
+	    c = reverse ? -1 : -2;
+	  else if (f == rl_forward_search_history)
+	    c =  !reverse ? -1 : -2;
+	}
+
+      /* Let NEWLINE (^J) terminate the search for people who don't like
+	 using ESC.  ^M can still be used to terminate the search and
+	 immediately execute the command. */
+      if (c == ESC || c == NEWLINE)
+	{
+	  /* ESC still terminates the search, but if there is pending
+	     input or if input arrives within 0.1 seconds (on systems
+	     with select(2)) it is used as a prefix character
+	     with rl_execute_next.  WATCH OUT FOR THIS!  This is intended
+	     to allow the arrow keys to be used like ^F and ^B are used
+	     to terminate the search and execute the movement command. */
+	  if (c == ESC && _rl_input_available ())	/* XXX */
+	    rl_execute_next (ESC);
+	  break;
+	}
+
+      if (c >= 0 && (CTRL_CHAR (c) || META_CHAR (c) || c == RUBOUT) && c != CTRL ('G'))
+	{
+	  rl_execute_next (c);
+	  break;
+	}
+
+      switch (c)
+	{
+	case -1:
+	  if (search_string_index == 0)
+	    continue;
+	  else if (reverse)
+	    --line_index;
+	  else if (line_index != sline_len)
+	    ++line_index;
+	  else
+	    ding ();
+	  break;
+
+	  /* switch directions */
+	case -2:
+	  direction = -direction;
+	  reverse = direction < 0;
+	  break;
+
+	case CTRL ('G'):
+	  strcpy (rl_line_buffer, lines[orig_line]);
+	  rl_point = orig_point;
+	  rl_end = strlen (rl_line_buffer);
+	  _rl_restore_prompt();
+	  rl_clear_message ();
+	  if (allocated_line)
+	    free (allocated_line);
+	  free (lines);
+	  return 0;
+
+#if 0
+	/* delete character from search string. */
+	case -3:
+	  if (search_string_index == 0)
+	    ding ();
+	  else
+	    {
+	      search_string[--search_string_index] = '\0';
+	      /* This is tricky.  To do this right, we need to keep a
+		 stack of search positions for the current search, with
+		 sentinels marking the beginning and end. */
+	    }
+	  break;
+#endif
+
+	default:
+	  /* Add character to search string and continue search. */
+	  if (search_string_index + 2 >= search_string_size)
+	    {
+	      search_string_size += 128;
+	      search_string = xrealloc (search_string, search_string_size);
+	    }
+	  search_string[search_string_index++] = c;
+	  search_string[search_string_index] = '\0';
+	  break;
+	}
+
+      for (found = failed = 0;;)
+	{
+	  int limit = sline_len - search_string_index + 1;
+
+	  /* Search the current line. */
+	  while (reverse ? (line_index >= 0) : (line_index < limit))
+	    {
+	      if (STREQN (search_string, sline + line_index, search_string_index))
+		{
+		  found++;
+		  break;
+		}
+	      else
+		line_index += direction;
+	    }
+	  if (found)
+	    break;
+
+	  /* Move to the next line, but skip new copies of the line
+	     we just found and lines shorter than the string we're
+	     searching for. */
+	  do
+	    {
+	      /* Move to the next line. */
+	      i += direction;
+
+	      /* At limit for direction? */
+	      if (reverse ? (i < 0) : (i == hlen))
+		{
+		  failed++;
+		  break;
+		}
+
+	      /* We will need these later. */
+	      sline = lines[i];
+	      sline_len = strlen (sline);
+	    }
+	  while ((prev_line_found && STREQ (prev_line_found, lines[i])) ||
+		 (search_string_index > sline_len));
+
+	  if (failed)
+	    break;
+
+	  /* Now set up the line for searching... */
+	  line_index = reverse ? sline_len - search_string_index : 0;
+	}
+
+      if (failed)
+	{
+	  /* We cannot find the search string.  Ding the bell. */
+	  ding ();
+	  i = last_found_line;
+	  continue; 		/* XXX - was break */
+	}
+
+      /* We have found the search string.  Just display it.  But don't
+	 actually move there in the history list until the user accepts
+	 the location. */
+      if (found)
+	{
+	  int line_len;
+
+	  prev_line_found = lines[i];
+	  line_len = strlen (lines[i]);
+
+	  if (line_len >= rl_line_buffer_len)
+	    rl_extend_line_buffer (line_len);
+
+	  strcpy (rl_line_buffer, lines[i]);
+	  rl_point = line_index;
+	  rl_end = line_len;
+	  last_found_line = i;
+	  rl_display_search (search_string, reverse, (i == orig_line) ? -1 : i);
+	}
+    }
+
+  /* The searching is over.  The user may have found the string that she
+     was looking for, or else she may have exited a failing search.  If
+     LINE_INDEX is -1, then that shows that the string searched for was
+     not found.  We use this to determine where to place rl_point. */
+
+  /* First put back the original state. */
+  strcpy (rl_line_buffer, lines[orig_line]);
+
+  _rl_restore_prompt ();
+
+  /* Free the search string. */
+  free (search_string);
+
+  if (last_found_line < orig_line)
+    rl_get_previous_history (orig_line - last_found_line);
+  else
+    rl_get_next_history (last_found_line - orig_line);
+
+  /* If the string was not found, put point at the end of the line. */
+  if (line_index < 0)
+    line_index = strlen (rl_line_buffer);
+  rl_point = line_index;
+  rl_clear_message ();
+
+  if (allocated_line)
+    free (allocated_line);
+  free (lines);
+
+  return 0;
+}
diff --git a/readline/keymaps.c b/readline/keymaps.c
new file mode 100644
index 00000000000..9359749ddc0
--- /dev/null
+++ b/readline/keymaps.c
@@ -0,0 +1,150 @@
+/* keymaps.c -- Functions and keymaps for the GNU Readline library. */
+
+/* Copyright (C) 1988,1989 Free Software Foundation, Inc.
+
+   This file is part of GNU Readline, a library for reading lines
+   of text with interactive input and history editing.
+
+   Readline is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 1, or (at your option) any
+   later version.
+
+   Readline is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Readline; see the file COPYING.  If not, write to the Free
+   Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include "rlconf.h"
+#include "keymaps.h"
+#include "emacs_keymap.c"
+
+#if defined (VI_MODE)
+#include "vi_keymap.c"
+#endif
+
+extern int rl_do_lowercase_version ();
+extern int rl_rubout (), rl_insert ();
+
+extern char *xmalloc (), *xrealloc ();
+
+/* **************************************************************** */
+/*								    */
+/*		      Functions for manipulating Keymaps.	    */
+/*								    */
+/* **************************************************************** */
+
+
+/* Return a new, empty keymap.
+   Free it with free() when you are done. */
+Keymap
+rl_make_bare_keymap ()
+{
+  register int i;
+  Keymap keymap = (Keymap)xmalloc (KEYMAP_SIZE * sizeof (KEYMAP_ENTRY));
+
+  for (i = 0; i < KEYMAP_SIZE; i++)
+    {
+      keymap[i].type = ISFUNC;
+      keymap[i].function = (Function *)NULL;
+    }
+
+  for (i = 'A'; i < ('Z' + 1); i++)
+    {
+      keymap[i].type = ISFUNC;
+      keymap[i].function = rl_do_lowercase_version;
+    }
+
+  return (keymap);
+}
+
+/* Return a new keymap which is a copy of MAP. */
+Keymap
+rl_copy_keymap (map)
+     Keymap map;
+{
+  register int i;
+  Keymap temp = rl_make_bare_keymap ();
+
+  for (i = 0; i < KEYMAP_SIZE; i++)
+    {
+      temp[i].type = map[i].type;
+      temp[i].function = map[i].function;
+    }
+  return (temp);
+}
+
+/* Return a new keymap with the printing characters bound to rl_insert,
+   the uppercase Meta characters bound to run their lowercase equivalents,
+   and the Meta digits bound to produce numeric arguments. */
+Keymap
+rl_make_keymap ()
+{
+  register int i;
+  Keymap newmap;
+
+  newmap = rl_make_bare_keymap ();
+
+  /* All ASCII printing characters are self-inserting. */
+  for (i = ' '; i < 127; i++)
+    newmap[i].function = rl_insert;
+
+  newmap[TAB].function = rl_insert;
+  newmap[RUBOUT].function = rl_rubout;	/* RUBOUT == 127 */
+  newmap[CTRL('H')].function = rl_rubout;
+
+#if KEYMAP_SIZE > 128
+  /* Printing characters in some 8-bit character sets. */
+  for (i = 128; i < 160; i++)
+    newmap[i].function = rl_insert;
+
+  /* ISO Latin-1 printing characters should self-insert. */
+  for (i = 160; i < 256; i++)
+    newmap[i].function = rl_insert;
+#endif /* KEYMAP_SIZE > 128 */
+
+  return (newmap);
+}
+
+/* Free the storage associated with MAP. */
+void
+rl_discard_keymap (map)
+     Keymap (map);
+{
+  int i;
+
+  if (!map)
+    return;
+
+  for (i = 0; i < KEYMAP_SIZE; i++)
+    {
+      switch (map[i].type)
+	{
+	case ISFUNC:
+	  break;
+
+	case ISKMAP:
+	  rl_discard_keymap ((Keymap)map[i].function);
+	  break;
+
+	case ISMACR:
+	  free ((char *)map[i].function);
+	  break;
+	}
+    }
+}
diff --git a/readline/keymaps.h b/readline/keymaps.h
new file mode 100644
index 00000000000..f6143f86f26
--- /dev/null
+++ b/readline/keymaps.h
@@ -0,0 +1,95 @@
+/* keymaps.h -- Manipulation of readline keymaps. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#ifndef _KEYMAPS_H_
+#define _KEYMAPS_H_
+
+#if defined (READLINE_LIBRARY)
+#  include "chardefs.h"
+#else
+#  include <readline/chardefs.h>
+#endif
+
+#if !defined (_FUNCTION_DEF)
+#  define _FUNCTION_DEF
+typedef int Function ();
+typedef void VFunction ();
+typedef char *CPFunction ();
+typedef char **CPPFunction ();
+#endif
+
+/* A keymap contains one entry for each key in the ASCII set.
+   Each entry consists of a type and a pointer.
+   FUNCTION is the address of a function to run, or the
+   address of a keymap to indirect through.
+   TYPE says which kind of thing FUNCTION is. */
+typedef struct _keymap_entry {
+  char type;
+  Function *function;
+} KEYMAP_ENTRY;
+
+/* This must be large enough to hold bindings for all of the characters
+   in a desired character set (e.g, 128 for ASCII, 256 for ISO Latin-x,
+   and so on). */
+#define KEYMAP_SIZE 256
+
+/* I wanted to make the above structure contain a union of:
+   union { Function *function; struct _keymap_entry *keymap; } value;
+   but this made it impossible for me to create a static array.
+   Maybe I need C lessons. */
+
+typedef KEYMAP_ENTRY KEYMAP_ENTRY_ARRAY[KEYMAP_SIZE];
+typedef KEYMAP_ENTRY *Keymap;
+
+/* The values that TYPE can have in a keymap entry. */
+#define ISFUNC 0
+#define ISKMAP 1
+#define ISMACR 2
+
+extern KEYMAP_ENTRY_ARRAY emacs_standard_keymap, emacs_meta_keymap, emacs_ctlx_keymap;
+extern KEYMAP_ENTRY_ARRAY vi_insertion_keymap, vi_movement_keymap;
+
+/* Return a new, empty keymap.
+   Free it with free() when you are done. */
+extern Keymap rl_make_bare_keymap ();
+
+/* Return a new keymap which is a copy of MAP. */
+extern Keymap rl_copy_keymap ();
+
+/* Return a new keymap with the printing characters bound to rl_insert,
+   the lowercase Meta characters bound to run their equivalents, and
+   the Meta digits bound to produce numeric arguments. */
+extern Keymap rl_make_keymap ();
+
+extern void rl_discard_keymap ();
+
+/* Return the keymap corresponding to a given name.  Names look like
+   `emacs' or `emacs-meta' or `vi-insert'. */
+extern Keymap rl_get_keymap_by_name ();
+
+/* Return the current keymap. */
+extern Keymap rl_get_keymap ();
+
+/* Set the current keymap to MAP. */
+extern void rl_set_keymap ();
+
+#endif /* _KEYMAPS_H_ */
diff --git a/readline/kill.c b/readline/kill.c
new file mode 100644
index 00000000000..a150e3c28d2
--- /dev/null
+++ b/readline/kill.c
@@ -0,0 +1,634 @@
+/* kill.c -- kill ring management. */
+
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>           /* for _POSIX_VERSION */
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <stdio.h>
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+extern int _rl_last_command_was_kill;
+extern int rl_editing_mode;
+extern int rl_explicit_arg;
+extern Function *rl_last_func;
+
+extern void _rl_init_argument ();
+extern int _rl_set_mark_at_pos ();
+extern void _rl_fix_point ();
+extern void _rl_abort_internal ();
+
+extern char *xmalloc (), *xrealloc ();
+
+/* **************************************************************** */
+/*								    */
+/*			Killing Mechanism			    */
+/*								    */
+/* **************************************************************** */
+
+/* What we assume for a max number of kills. */
+#define DEFAULT_MAX_KILLS 10
+
+/* The real variable to look at to find out when to flush kills. */
+static int rl_max_kills =  DEFAULT_MAX_KILLS;
+
+/* Where to store killed text. */
+static char **rl_kill_ring = (char **)NULL;
+
+/* Where we are in the kill ring. */
+static int rl_kill_index;
+
+/* How many slots we have in the kill ring. */
+static int rl_kill_ring_length;
+
+/* How to say that you only want to save a certain amount
+   of kill material. */
+int
+rl_set_retained_kills (num)
+     int num;
+{
+  return 0;
+}
+
+/* Add TEXT to the kill ring, allocating a new kill ring slot as necessary.
+   This uses TEXT directly, so the caller must not free it.  If APPEND is
+   non-zero, and the last command was a kill, the text is appended to the
+   current kill ring slot, otherwise prepended. */
+static int
+_rl_copy_to_kill_ring (text, append)
+     char *text;
+     int append;
+{
+  char *old, *new;
+  int slot;
+
+  /* First, find the slot to work with. */
+  if (_rl_last_command_was_kill == 0)
+    {
+      /* Get a new slot.  */
+      if (rl_kill_ring == 0)
+	{
+	  /* If we don't have any defined, then make one. */
+	  rl_kill_ring = (char **)
+	    xmalloc (((rl_kill_ring_length = 1) + 1) * sizeof (char *));
+	  rl_kill_ring[slot = 0] = (char *)NULL;
+	}
+      else
+	{
+	  /* We have to add a new slot on the end, unless we have
+	     exceeded the max limit for remembering kills. */
+	  slot = rl_kill_ring_length;
+	  if (slot == rl_max_kills)
+	    {
+	      register int i;
+	      free (rl_kill_ring[0]);
+	      for (i = 0; i < slot; i++)
+		rl_kill_ring[i] = rl_kill_ring[i + 1];
+	    }
+	  else
+	    {
+	      slot = rl_kill_ring_length += 1;
+	      rl_kill_ring = (char **)xrealloc (rl_kill_ring, slot * sizeof (char *));
+	    }
+	  rl_kill_ring[--slot] = (char *)NULL;
+	}
+    }
+  else
+    slot = rl_kill_ring_length - 1;
+
+  /* If the last command was a kill, prepend or append. */
+  if (_rl_last_command_was_kill && rl_editing_mode != vi_mode)
+    {
+      old = rl_kill_ring[slot];
+      new = xmalloc (1 + strlen (old) + strlen (text));
+
+      if (append)
+	{
+	  strcpy (new, old);
+	  strcat (new, text);
+	}
+      else
+	{
+	  strcpy (new, text);
+	  strcat (new, old);
+	}
+      free (old);
+      free (text);
+      rl_kill_ring[slot] = new;
+    }
+  else
+    rl_kill_ring[slot] = text;
+
+  rl_kill_index = slot;
+  return 0;
+}
+
+/* The way to kill something.  This appends or prepends to the last
+   kill, if the last command was a kill command.  if FROM is less
+   than TO, then the text is appended, otherwise prepended.  If the
+   last command was not a kill command, then a new slot is made for
+   this kill. */
+int
+rl_kill_text (from, to)
+     int from, to;
+{
+  char *text;
+
+  /* Is there anything to kill? */
+  if (from == to)
+    {
+      _rl_last_command_was_kill++;
+      return 0;
+    }
+
+  text = rl_copy_text (from, to);
+
+  /* Delete the copied text from the line. */
+  rl_delete_text (from, to);
+
+  _rl_copy_to_kill_ring (text, from < to);
+
+  _rl_last_command_was_kill++;
+  return 0;
+}
+
+/* Now REMEMBER!  In order to do prepending or appending correctly, kill
+   commands always make rl_point's original position be the FROM argument,
+   and rl_point's extent be the TO argument. */
+
+/* **************************************************************** */
+/*								    */
+/*			Killing Commands			    */
+/*								    */
+/* **************************************************************** */
+
+/* Delete the word at point, saving the text in the kill ring. */
+int
+rl_kill_word (count, key)
+     int count, key;
+{
+  int orig_point = rl_point;
+
+  if (count < 0)
+    return (rl_backward_kill_word (-count, key));
+  else
+    {
+      rl_forward_word (count, key);
+
+      if (rl_point != orig_point)
+	rl_kill_text (orig_point, rl_point);
+
+      rl_point = orig_point;
+    }
+  return 0;
+}
+
+/* Rubout the word before point, placing it on the kill ring. */
+int
+rl_backward_kill_word (count, ignore)
+     int count, ignore;
+{
+  int orig_point = rl_point;
+
+  if (count < 0)
+    return (rl_kill_word (-count, ignore));
+  else
+    {
+      rl_backward_word (count, ignore);
+
+      if (rl_point != orig_point)
+	rl_kill_text (orig_point, rl_point);
+    }
+  return 0;
+}
+
+/* Kill from here to the end of the line.  If DIRECTION is negative, kill
+   back to the line start instead. */
+int
+rl_kill_line (direction, ignore)
+     int direction, ignore;
+{
+  int orig_point = rl_point;
+
+  if (direction < 0)
+    return (rl_backward_kill_line (1, ignore));
+  else
+    {
+      rl_end_of_line (1, ignore);
+      if (orig_point != rl_point)
+	rl_kill_text (orig_point, rl_point);
+      rl_point = orig_point;
+    }
+  return 0;
+}
+
+/* Kill backwards to the start of the line.  If DIRECTION is negative, kill
+   forwards to the line end instead. */
+int
+rl_backward_kill_line (direction, ignore)
+     int direction, ignore;
+{
+  int orig_point = rl_point;
+
+  if (direction < 0)
+    return (rl_kill_line (1, ignore));
+  else
+    {
+      if (!rl_point)
+	ding ();
+      else
+	{
+	  rl_beg_of_line (1, ignore);
+	  rl_kill_text (orig_point, rl_point);
+	}
+    }
+  return 0;
+}
+
+/* Kill the whole line, no matter where point is. */
+int
+rl_kill_full_line (count, ignore)
+     int count, ignore;
+{
+  rl_begin_undo_group ();
+  rl_point = 0;
+  rl_kill_text (rl_point, rl_end);
+  rl_end_undo_group ();
+  return 0;
+}
+
+/* The next two functions mimic unix line editing behaviour, except they
+   save the deleted text on the kill ring.  This is safer than not saving
+   it, and since we have a ring, nobody should get screwed. */
+
+/* This does what C-w does in Unix.  We can't prevent people from
+   using behaviour that they expect. */
+int
+rl_unix_word_rubout (count, key)
+     int count, key;
+{
+  int orig_point;
+
+  if (rl_point == 0)
+    ding ();
+  else
+    {
+      orig_point = rl_point;
+      if (count <= 0)
+	count = 1;
+
+      while (count--)
+	{
+	  while (rl_point && whitespace (rl_line_buffer[rl_point - 1]))
+	    rl_point--;
+
+	  while (rl_point && (whitespace (rl_line_buffer[rl_point - 1]) == 0))
+	    rl_point--;
+	}
+
+      rl_kill_text (orig_point, rl_point);
+    }
+  return 0;
+}
+
+/* Here is C-u doing what Unix does.  You don't *have* to use these
+   key-bindings.  We have a choice of killing the entire line, or
+   killing from where we are to the start of the line.  We choose the
+   latter, because if you are a Unix weenie, then you haven't backspaced
+   into the line at all, and if you aren't, then you know what you are
+   doing. */
+int
+rl_unix_line_discard (count, key)
+     int count, key;
+{
+  if (rl_point == 0)
+    ding ();
+  else
+    {
+      rl_kill_text (rl_point, 0);
+      rl_point = 0;
+    }
+  return 0;
+}
+
+/* Copy the text in the `region' to the kill ring.  If DELETE is non-zero,
+   delete the text from the line as well. */
+static int
+region_kill_internal (delete)
+     int delete;
+{
+  char *text;
+
+  if (rl_mark == rl_point)
+    {
+      _rl_last_command_was_kill++;
+      return 0;
+    }
+
+  text = rl_copy_text (rl_point, rl_mark);
+  if (delete)
+    rl_delete_text (rl_point, rl_mark);
+  _rl_copy_to_kill_ring (text, rl_point < rl_mark);
+
+  _rl_last_command_was_kill++;
+  return 0;
+}
+
+/* Copy the text in the region to the kill ring. */
+int
+rl_copy_region_to_kill (count, ignore)
+     int count, ignore;
+{
+  return (region_kill_internal (0));
+}
+
+/* Kill the text between the point and mark. */
+int
+rl_kill_region (count, ignore)
+     int count, ignore;
+{
+  int r;
+
+  r = region_kill_internal (1);
+  _rl_fix_point (1);
+  return r;
+}
+
+/* Copy COUNT words to the kill ring.  DIR says which direction we look
+   to find the words. */
+static int
+_rl_copy_word_as_kill (count, dir)
+     int count, dir;
+{
+  int om, op, r;
+
+  om = rl_mark;
+  op = rl_point;
+
+  if (dir > 0)
+    rl_forward_word (count, 0);
+  else
+    rl_backward_word (count, 0);
+
+  rl_mark = rl_point;
+
+  if (dir > 0)
+    rl_backward_word (count, 0);
+  else
+    rl_forward_word (count, 0);
+
+  r = region_kill_internal (0);
+
+  rl_mark = om;
+  rl_point = op;
+
+  return r;
+}
+
+int
+rl_copy_forward_word (count, key)
+     int count, key;
+{
+  if (count < 0)
+    return (rl_copy_backward_word (-count, key));
+
+  return (_rl_copy_word_as_kill (count, 1));
+}
+
+int
+rl_copy_backward_word (count, key)
+     int count, key;
+{
+  if (count < 0)
+    return (rl_copy_forward_word (-count, key));
+
+  return (_rl_copy_word_as_kill (count, -1));
+}
+  
+/* Yank back the last killed text.  This ignores arguments. */
+int
+rl_yank (count, ignore)
+     int count, ignore;
+{
+  if (rl_kill_ring == 0)
+    {
+      _rl_abort_internal ();
+      return -1;
+    }
+
+  _rl_set_mark_at_pos (rl_point);
+  rl_insert_text (rl_kill_ring[rl_kill_index]);
+  return 0;
+}
+
+/* If the last command was yank, or yank_pop, and the text just
+   before point is identical to the current kill item, then
+   delete that text from the line, rotate the index down, and
+   yank back some other text. */
+int
+rl_yank_pop (count, key)
+     int count, key;
+{
+  int l, n;
+
+  if (((rl_last_func != rl_yank_pop) && (rl_last_func != rl_yank)) ||
+      !rl_kill_ring)
+    {
+      _rl_abort_internal ();
+      return -1;
+    }
+
+  l = strlen (rl_kill_ring[rl_kill_index]);
+  n = rl_point - l;
+  if (n >= 0 && STREQN (rl_line_buffer + n, rl_kill_ring[rl_kill_index], l))
+    {
+      rl_delete_text (n, rl_point);
+      rl_point = n;
+      rl_kill_index--;
+      if (rl_kill_index < 0)
+	rl_kill_index = rl_kill_ring_length - 1;
+      rl_yank (1, 0);
+      return 0;
+    }
+  else
+    {
+      _rl_abort_internal ();
+      return -1;
+    }
+}
+
+/* Yank the COUNTh argument from the previous history line, skipping
+   HISTORY_SKIP lines before looking for the `previous line'. */
+static int
+rl_yank_nth_arg_internal (count, ignore, history_skip)
+     int count, ignore, history_skip;
+{
+  register HIST_ENTRY *entry;
+  char *arg;
+  int i;
+
+  if (history_skip)
+    {
+      for (i = 0; i < history_skip; i++)
+	entry = previous_history ();
+    }
+
+  entry = previous_history ();
+  if (entry)
+    {
+      if (history_skip)
+	{
+	  for (i = 0; i < history_skip; i++)
+	    next_history ();
+	}
+      next_history ();
+    }
+  else
+    {
+      ding ();
+      return -1;
+    }
+
+  arg = history_arg_extract (count, count, entry->line);
+  if (!arg || !*arg)
+    {
+      ding ();
+      return -1;
+    }
+
+  rl_begin_undo_group ();
+
+#if defined (VI_MODE)
+  /* Vi mode always inserts a space before yanking the argument, and it
+     inserts it right *after* rl_point. */
+  if (rl_editing_mode == vi_mode)
+    {
+      rl_vi_append_mode (1, ignore);
+      rl_insert_text (" ");
+    }
+#endif /* VI_MODE */
+
+  rl_insert_text (arg);
+  free (arg);
+
+  rl_end_undo_group ();
+  return 0;
+}
+
+/* Yank the COUNTth argument from the previous history line. */
+int
+rl_yank_nth_arg (count, ignore)
+     int count, ignore;
+{
+  return (rl_yank_nth_arg_internal (count, ignore, 0));
+}
+
+/* Yank the last argument from the previous history line.  This `knows'
+   how rl_yank_nth_arg treats a count of `$'.  With an argument, this
+   behaves the same as rl_yank_nth_arg. */
+int
+rl_yank_last_arg (count, key)
+     int count, key;
+{
+  static int history_skip = 0;
+  static int explicit_arg_p = 0;
+  static int count_passed = 1;
+  static int direction = 1;
+
+  if (rl_last_func != rl_yank_last_arg)
+    {
+      history_skip = 0;
+      explicit_arg_p = rl_explicit_arg;
+      count_passed = count;
+      direction = 1;
+    }
+  else
+    {
+      rl_do_undo ();
+      if (count < 1)
+        direction = -direction;
+      history_skip += direction;
+      if (history_skip < 0)
+	history_skip = 0;
+      count_passed = count;
+    }
+ 
+  if (explicit_arg_p)
+    return (rl_yank_nth_arg_internal (count, key, history_skip));
+  else
+    return (rl_yank_nth_arg_internal ('$', key, history_skip));
+}
+
+/* A special paste command for users of Cygnus's cygwin32. */
+#if defined (__CYGWIN32__)
+#include <windows.h>
+
+int
+rl_paste_from_clipboard (count, key)
+     int count, key;
+{
+  char *data, *ptr;
+  int len;
+
+  if (OpenClipboard (NULL) == 0)
+    return (0);
+
+  data = (char *)GetClipboardData (CF_TEXT);
+  if (data)
+    {
+      ptr = strchr (data, '\r');
+      if (ptr)
+	{
+	  len = ptr - data;
+	  ptr = xmalloc (len + 1);
+	  ptr[len] = '\0';
+	  strncpy (ptr, data, len);
+	}
+      else
+        ptr = data;
+      rl_insert_text (ptr);
+      if (ptr != data)
+	free (ptr);
+      CloseClipboard ();
+    }
+  return (0);
+}
+#endif /* __CYGWIN32__ */
diff --git a/readline/macro.c b/readline/macro.c
new file mode 100644
index 00000000000..f3c442b41c3
--- /dev/null
+++ b/readline/macro.c
@@ -0,0 +1,277 @@
+/* macro.c -- keyboard macros for readline. */
+
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>           /* for _POSIX_VERSION */
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <stdio.h>
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+#define SWAP(s, e)  do { int t; t = s; s = e; e = t; } while (0)
+
+/* Forward definitions. */
+void _rl_push_executing_macro (), _rl_pop_executing_macro ();
+void _rl_add_macro_char ();
+
+/* Extern declarations. */
+extern int rl_explicit_arg;
+extern int rl_key_sequence_length;
+
+extern void _rl_abort_internal ();
+
+extern char *xmalloc (), *xrealloc ();
+
+/* **************************************************************** */
+/*								    */
+/*			Hacking Keyboard Macros 		    */
+/*								    */
+/* **************************************************************** */
+
+/* Non-zero means to save keys that we dispatch on in a kbd macro. */
+int _rl_defining_kbd_macro = 0;
+
+/* The currently executing macro string.  If this is non-zero,
+   then it is a malloc ()'ed string where input is coming from. */
+char *_rl_executing_macro = (char *)NULL;
+
+/* The offset in the above string to the next character to be read. */
+static int executing_macro_index;
+
+/* The current macro string being built.  Characters get stuffed
+   in here by add_macro_char (). */
+static char *current_macro = (char *)NULL;
+
+/* The size of the buffer allocated to current_macro. */
+static int current_macro_size;
+
+/* The index at which characters are being added to current_macro. */
+static int current_macro_index;
+
+/* A structure used to save nested macro strings.
+   It is a linked list of string/index for each saved macro. */
+struct saved_macro {
+  struct saved_macro *next;
+  char *string;
+  int sindex;
+};
+
+/* The list of saved macros. */
+static struct saved_macro *macro_list = (struct saved_macro *)NULL;
+
+/* Set up to read subsequent input from STRING.
+   STRING is free ()'ed when we are done with it. */
+void
+_rl_with_macro_input (string)
+     char *string;
+{
+  _rl_push_executing_macro ();
+  _rl_executing_macro = string;
+  executing_macro_index = 0;
+}
+
+/* Return the next character available from a macro, or 0 if
+   there are no macro characters. */
+int
+_rl_next_macro_key ()
+{
+  if (_rl_executing_macro == 0)
+    return (0);
+
+  if (_rl_executing_macro[executing_macro_index] == 0)
+    {
+      _rl_pop_executing_macro ();
+      return (_rl_next_macro_key ());
+    }
+
+  return (_rl_executing_macro[executing_macro_index++]);
+}
+
+/* Save the currently executing macro on a stack of saved macros. */
+void
+_rl_push_executing_macro ()
+{
+  struct saved_macro *saver;
+
+  saver = (struct saved_macro *)xmalloc (sizeof (struct saved_macro));
+  saver->next = macro_list;
+  saver->sindex = executing_macro_index;
+  saver->string = _rl_executing_macro;
+
+  macro_list = saver;
+}
+
+/* Discard the current macro, replacing it with the one
+   on the top of the stack of saved macros. */
+void
+_rl_pop_executing_macro ()
+{
+  struct saved_macro *macro;
+
+  if (_rl_executing_macro)
+    free (_rl_executing_macro);
+
+  _rl_executing_macro = (char *)NULL;
+  executing_macro_index = 0;
+
+  if (macro_list)
+    {
+      macro = macro_list;
+      _rl_executing_macro = macro_list->string;
+      executing_macro_index = macro_list->sindex;
+      macro_list = macro_list->next;
+      free (macro);
+    }
+}
+
+/* Add a character to the macro being built. */
+void
+_rl_add_macro_char (c)
+     int c;
+{
+  if (current_macro_index + 1 >= current_macro_size)
+    {
+      if (current_macro == 0)
+	current_macro = xmalloc (current_macro_size = 25);
+      else
+	current_macro = xrealloc (current_macro, current_macro_size += 25);
+    }
+
+  current_macro[current_macro_index++] = c;
+  current_macro[current_macro_index] = '\0';
+}
+
+void
+_rl_kill_kbd_macro ()
+{
+  if (current_macro)
+    {
+      free (current_macro);
+      current_macro = (char *) NULL;
+    }
+  current_macro_size = current_macro_index = 0;
+
+  if (_rl_executing_macro)
+    {
+      free (_rl_executing_macro);
+      _rl_executing_macro = (char *) NULL;
+    }
+  executing_macro_index = 0;
+
+  _rl_defining_kbd_macro = 0;
+}
+
+/* Begin defining a keyboard macro.
+   Keystrokes are recorded as they are executed.
+   End the definition with rl_end_kbd_macro ().
+   If a numeric argument was explicitly typed, then append this
+   definition to the end of the existing macro, and start by
+   re-executing the existing macro. */
+int
+rl_start_kbd_macro (ignore1, ignore2)
+     int ignore1, ignore2;
+{
+  if (_rl_defining_kbd_macro)
+    {
+      _rl_abort_internal ();
+      return -1;
+    }
+
+  if (rl_explicit_arg)
+    {
+      if (current_macro)
+	_rl_with_macro_input (savestring (current_macro));
+    }
+  else
+    current_macro_index = 0;
+
+  _rl_defining_kbd_macro = 1;
+  return 0;
+}
+
+/* Stop defining a keyboard macro.
+   A numeric argument says to execute the macro right now,
+   that many times, counting the definition as the first time. */
+int
+rl_end_kbd_macro (count, ignore)
+     int count, ignore;
+{
+  if (_rl_defining_kbd_macro == 0)
+    {
+      _rl_abort_internal ();
+      return -1;
+    }
+
+  current_macro_index -= rl_key_sequence_length - 1;
+  current_macro[current_macro_index] = '\0';
+
+  _rl_defining_kbd_macro = 0;
+
+  return (rl_call_last_kbd_macro (--count, 0));
+}
+
+/* Execute the most recently defined keyboard macro.
+   COUNT says how many times to execute it. */
+int
+rl_call_last_kbd_macro (count, ignore)
+     int count, ignore;
+{
+  if (current_macro == 0)
+    _rl_abort_internal ();
+
+  if (_rl_defining_kbd_macro)
+    {
+      ding ();		/* no recursive macros */
+      current_macro[--current_macro_index] = '\0';	/* erase this char */
+      return 0;
+    }
+
+  while (count--)
+    _rl_with_macro_input (savestring (current_macro));
+  return 0;
+}
+
+void
+rl_push_macro_input (macro)
+     char *macro;
+{
+  _rl_with_macro_input (macro);
+}
diff --git a/readline/nls.c b/readline/nls.c
new file mode 100644
index 00000000000..f2d413d59d5
--- /dev/null
+++ b/readline/nls.c
@@ -0,0 +1,228 @@
+/* nls.c -- skeletal internationalization code. */
+
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#if defined (HAVE_LOCALE_H)
+#  include <locale.h>
+#endif
+
+#include <ctype.h>
+
+#include "rldefs.h"
+
+extern int _rl_convert_meta_chars_to_ascii;
+extern int _rl_output_meta_chars;
+extern int _rl_meta_flag;
+
+/* Functions imported from shell.c */
+extern char *get_env_value ();
+
+#if !defined (HAVE_SETLOCALE)    
+/* A list of legal values for the LANG or LC_CTYPE environment variables.
+   If a locale name in this list is the value for the LC_ALL, LC_CTYPE,
+   or LANG environment variable (using the first of those with a value),
+   readline eight-bit mode is enabled. */
+static char *legal_lang_values[] =
+{
+ "iso88591",
+ "iso88592",
+ "iso88593",
+ "iso88594",
+ "iso88595",
+ "iso88596",
+ "iso88597",
+ "iso88598",
+ "iso88599",
+ "iso885910",
+ "koi8r",
+ "koi8-r", 
+  0
+};
+
+static char *normalize_codeset ();
+static char *find_codeset ();
+#endif /* !HAVE_SETLOCALE */
+
+/* Check for LC_ALL, LC_CTYPE, and LANG and use the first with a value
+   to decide the defaults for 8-bit character input and output.  Returns
+   1 if we set eight-bit mode. */
+int
+_rl_init_eightbit ()
+{
+/* If we have setlocale(3), just check the current LC_CTYPE category
+   value, and go into eight-bit mode if it's not C or POSIX. */
+#if defined (HAVE_SETLOCALE)
+  char *t;
+
+  /* Set the LC_CTYPE locale category from environment variables. */
+  t = setlocale (LC_CTYPE, "");
+  if (t && *t && (t[0] != 'C' || t[1]) && (STREQ (t, "POSIX") == 0))
+    {
+      _rl_meta_flag = 1;
+      _rl_convert_meta_chars_to_ascii = 0;
+      _rl_output_meta_chars = 1;
+      return (1);
+    }
+  else
+    return (0);
+
+#else /* !HAVE_SETLOCALE */
+  char *lspec, *t;
+  int i;
+
+  /* We don't have setlocale.  Finesse it.  Check the environment for the
+     appropriate variables and set eight-bit mode if they have the right
+     values. */
+  lspec = get_env_value ("LC_ALL");
+  if (lspec == 0) lspec = get_env_value ("LC_CTYPE");
+  if (lspec == 0) lspec = get_env_value ("LANG");
+  if (lspec == 0 || (t = normalize_codeset (lspec)) == 0)
+    return (0);
+  for (i = 0; t && legal_lang_values[i]; i++)
+    if (STREQ (t, legal_lang_values[i]))
+      {
+	_rl_meta_flag = 1;
+	_rl_convert_meta_chars_to_ascii = 0;
+	_rl_output_meta_chars = 1;
+	break;
+      }
+  free (t);
+  return (legal_lang_values[i] ? 1 : 0);
+
+#endif /* !HAVE_SETLOCALE */
+}
+
+#if !defined (HAVE_SETLOCALE)
+static char *
+normalize_codeset (codeset)
+     char *codeset;
+{
+  size_t namelen, i;
+  int len, all_digits;
+  char *wp, *retval;
+
+  codeset = find_codeset (codeset, &namelen);
+
+  if (codeset == 0)
+    return (codeset);
+
+  all_digits = 1;
+  for (len = 0, i = 0; i < namelen; i++)
+    {
+      if (isalnum (codeset[i]))
+	{
+	  len++;
+	  all_digits &= isdigit (codeset[i]);
+	}
+    }
+
+  retval = (char *)malloc ((all_digits ? 3 : 0) + len + 1);
+  if (retval == 0)
+    return ((char *)0);
+
+  wp = retval;
+  /* Add `iso' to beginning of an all-digit codeset */
+  if (all_digits)
+    {
+      *wp++ = 'i';
+      *wp++ = 's';
+      *wp++ = 'o';
+    }
+
+  for (i = 0; i < namelen; i++)
+    if (isalpha (codeset[i]))
+      *wp++ = (isupper (codeset[i])) ? tolower (codeset[i]) : codeset[i];
+    else if (isdigit (codeset[i]))
+      *wp++ = codeset[i];
+  *wp = '\0';
+
+  return retval;
+}
+
+/* Isolate codeset portion of locale specification. */
+static char *
+find_codeset (name, lenp)
+     char *name;
+     size_t *lenp;
+{
+  char *cp, *language, *result;
+
+  cp = language = name;
+  result = (char *)0;
+
+  while (*cp && *cp != '_' && *cp != '@' && *cp != '+' && *cp != ',')
+    cp++;
+
+  /* This does not make sense: language has to be specified.  As
+     an exception we allow the variable to contain only the codeset
+     name.  Perhaps there are funny codeset names.  */
+  if (language == cp) 
+    {
+      *lenp = strlen (language);
+      result = language;
+    }
+  else
+    {
+      /* Next is the territory. */
+      if (*cp == '_')
+	do
+	  ++cp;
+	while (*cp && *cp != '.' && *cp != '@' && *cp != '+' && *cp != ',' && *cp != '_');
+
+      /* Now, finally, is the codeset. */
+      result = cp;
+      if (*cp == '.')
+	do
+	  ++cp;
+	while (*cp && *cp != '@');
+
+      if (cp - result > 2)
+	{
+	  result++;
+	  *lenp = cp - result;
+	}
+      else
+	{
+	  *lenp = strlen (language);
+	  result = language;
+	}
+    }
+
+  return result;
+}
+#endif /* !HAVE_SETLOCALE */
diff --git a/readline/parens.c b/readline/parens.c
new file mode 100644
index 00000000000..a500c0afac7
--- /dev/null
+++ b/readline/parens.c
@@ -0,0 +1,156 @@
+/* parens.c -- Implementation of matching parentheses feature. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#include "rlconf.h"
+
+#if !defined (PAREN_MATCHING)
+extern int rl_insert ();
+
+int
+rl_insert_close (count, invoking_key)
+     int count, invoking_key;
+{
+  return (rl_insert (count, invoking_key));
+}
+
+#else /* PAREN_MATCHING */
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+
+#if defined (FD_SET) && !defined (HAVE_SELECT)
+#  define HAVE_SELECT
+#endif
+
+#if defined (HAVE_SELECT)
+#  include <sys/time.h>
+#endif /* HAVE_SELECT */
+#if defined (HAVE_SYS_SELECT_H)
+#  include <sys/select.h>
+#endif
+
+#if defined (HAVE_STRING_H)
+#  include <string.h>
+#else /* !HAVE_STRING_H */
+#  include <strings.h>
+#endif /* !HAVE_STRING_H */
+
+#if !defined (strchr) && !defined (__STDC__)
+extern char *strchr (), *strrchr ();
+#endif /* !strchr && !__STDC__ */
+
+#include "readline.h"
+
+extern int rl_explicit_arg;
+
+/* Non-zero means try to blink the matching open parenthesis when the
+   close parenthesis is inserted. */
+#if defined (HAVE_SELECT)
+int rl_blink_matching_paren = 1;
+#else /* !HAVE_SELECT */
+int rl_blink_matching_paren = 0;
+#endif /* !HAVE_SELECT */
+
+static int find_matching_open ();
+
+int
+rl_insert_close (count, invoking_key)
+     int count, invoking_key;
+{
+  if (rl_explicit_arg || !rl_blink_matching_paren)
+    rl_insert (count, invoking_key);
+  else
+    {
+#if defined (HAVE_SELECT)
+      int orig_point, match_point, ready;
+      struct timeval timer;
+      fd_set readfds;
+
+      rl_insert (1, invoking_key);
+      (*rl_redisplay_function) ();
+      match_point =
+	find_matching_open (rl_line_buffer, rl_point - 2, invoking_key);
+
+      /* Emacs might message or ring the bell here, but I don't. */
+      if (match_point < 0)
+	return -1;
+
+      FD_ZERO (&readfds);
+      FD_SET (fileno (rl_instream), &readfds);
+      timer.tv_sec = 0;
+      timer.tv_usec = 500000;
+
+      orig_point = rl_point;
+      rl_point = match_point;
+      (*rl_redisplay_function) ();
+      ready = select (1, &readfds, (fd_set *)NULL, (fd_set *)NULL, &timer);
+      rl_point = orig_point;
+#else /* !HAVE_SELECT */
+      rl_insert (count, invoking_key);
+#endif /* !HAVE_SELECT */
+    }
+  return 0;
+}
+
+static int
+find_matching_open (string, from, closer)
+     char *string;
+     int from, closer;
+{
+  register int i;
+  int opener, level, delimiter;
+
+  switch (closer)
+    {
+    case ']': opener = '['; break;
+    case '}': opener = '{'; break;
+    case ')': opener = '('; break;
+    default:
+      return (-1);
+    }
+
+  level = 1;			/* The closer passed in counts as 1. */
+  delimiter = 0;		/* Delimited state unknown. */
+
+  for (i = from; i > -1; i--)
+    {
+      if (delimiter && (string[i] == delimiter))
+	delimiter = 0;
+      else if (rl_basic_quote_characters && strchr (rl_basic_quote_characters, string[i]))
+	delimiter = string[i];
+      else if (!delimiter && (string[i] == closer))
+	level++;
+      else if (!delimiter && (string[i] == opener))
+	level--;
+
+      if (!level)
+	break;
+    }
+  return (i);
+}
+
+#endif /* PAREN_MATCHING */
diff --git a/readline/posixdir.h b/readline/posixdir.h
new file mode 100644
index 00000000000..7480a93d5db
--- /dev/null
+++ b/readline/posixdir.h
@@ -0,0 +1,49 @@
+/* posixdir.h -- Posix directory reading includes and defines. */
+
+/* Copyright (C) 1987,1991 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   Bash is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+   License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Bash; see the file COPYING.  If not, write to the Free
+   Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* This file should be included instead of <dirent.h> or <sys/dir.h>. */
+
+#if !defined (_POSIXDIR_H_)
+#define _POSIXDIR_H_
+
+#if defined (HAVE_DIRENT_H)
+#  include <dirent.h>
+#  define D_NAMLEN(d)   (strlen ((d)->d_name))
+#else
+#  if defined (HAVE_SYS_NDIR_H)
+#    include <sys/ndir.h>
+#  endif
+#  if defined (HAVE_SYS_DIR_H)
+#    include <sys/dir.h>
+#  endif
+#  if defined (HAVE_NDIR_H)
+#    include <ndir.h>
+#  endif
+#  if !defined (dirent)
+#    define dirent direct
+#  endif /* !dirent */
+#  define D_NAMLEN(d)   ((d)->d_namlen)
+#endif /* !HAVE_DIRENT_H */
+
+#if defined (STRUCT_DIRENT_HAS_D_INO) && !defined (STRUCT_DIRENT_HAS_D_FILENO)
+#  define d_fileno d_ino
+#endif
+
+#endif /* !_POSIXDIR_H_ */
diff --git a/readline/posixjmp.h b/readline/posixjmp.h
new file mode 100644
index 00000000000..8703d17e9fb
--- /dev/null
+++ b/readline/posixjmp.h
@@ -0,0 +1,20 @@
+/* posixjmp.h -- wrapper for setjmp.h with changes for POSIX systems. */
+
+#ifndef _POSIXJMP_H_
+#define _POSIXJMP_H_
+
+#include <setjmp.h>
+
+/* This *must* be included *after* config.h */
+
+#if defined (HAVE_POSIX_SIGSETJMP)
+#  define procenv_t	sigjmp_buf
+#  undef setjmp
+#  define setjmp(x)	sigsetjmp((x), 1)
+#  undef longjmp
+#  define longjmp(x, n)	siglongjmp((x), (n))
+#else
+#  define procenv_t	jmp_buf
+#endif
+
+#endif /* _POSIXJMP_H_ */
diff --git a/readline/posixstat.h b/readline/posixstat.h
new file mode 100644
index 00000000000..bfce8c04fef
--- /dev/null
+++ b/readline/posixstat.h
@@ -0,0 +1,142 @@
+/* posixstat.h -- Posix stat(2) definitions for systems that
+   don't have them. */
+
+/* Copyright (C) 1987,1991 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   Bash is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+   License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Bash; see the file COPYING.  If not, write to the Free
+   Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* This file should be included instead of <sys/stat.h>.
+   It relies on the local sys/stat.h to work though. */
+#if !defined (_POSIXSTAT_H_)
+#define _POSIXSTAT_H_
+
+#include <sys/stat.h>
+
+#if defined (STAT_MACROS_BROKEN)
+#  undef S_ISBLK
+#  undef S_ISCHR
+#  undef S_ISDIR
+#  undef S_ISFIFO
+#  undef S_ISREG
+#  undef S_ISLNK
+#endif /* STAT_MACROS_BROKEN */
+
+/* These are guaranteed to work only on isc386 */
+#if !defined (S_IFDIR) && !defined (S_ISDIR)
+#  define S_IFDIR 0040000
+#endif /* !S_IFDIR && !S_ISDIR */
+#if !defined (S_IFMT)
+#  define S_IFMT  0170000
+#endif /* !S_IFMT */
+
+/* Posix 1003.1 5.6.1.1 <sys/stat.h> file types */
+
+/* Some Posix-wannabe systems define _S_IF* macros instead of S_IF*, but
+   do not provide the S_IS* macros that Posix requires. */
+
+#if defined (_S_IFMT) && !defined (S_IFMT)
+#define S_IFMT _S_IFMT
+#endif
+#if defined (_S_IFIFO) && !defined (S_IFIFO)
+#define S_IFIFO _S_IFIFO
+#endif
+#if defined (_S_IFCHR) && !defined (S_IFCHR)
+#define S_IFCHR _S_IFCHR
+#endif
+#if defined (_S_IFDIR) && !defined (S_IFDIR)
+#define S_IFDIR _S_IFDIR
+#endif
+#if defined (_S_IFBLK) && !defined (S_IFBLK)
+#define S_IFBLK _S_IFBLK
+#endif
+#if defined (_S_IFREG) && !defined (S_IFREG)
+#define S_IFREG _S_IFREG
+#endif
+#if defined (_S_IFLNK) && !defined (S_IFLNK)
+#define S_IFLNK _S_IFLNK
+#endif
+#if defined (_S_IFSOCK) && !defined (S_IFSOCK)
+#define S_IFSOCK _S_IFSOCK
+#endif
+
+/* Test for each symbol individually and define the ones necessary (some
+   systems claiming Posix compatibility define some but not all). */
+
+#if defined (S_IFBLK) && !defined (S_ISBLK)
+#define	S_ISBLK(m)	(((m)&S_IFMT) == S_IFBLK)	/* block device */
+#endif
+
+#if defined (S_IFCHR) && !defined (S_ISCHR)
+#define	S_ISCHR(m)	(((m)&S_IFMT) == S_IFCHR)	/* character device */
+#endif
+
+#if defined (S_IFDIR) && !defined (S_ISDIR)
+#define	S_ISDIR(m)	(((m)&S_IFMT) == S_IFDIR)	/* directory */
+#endif
+
+#if defined (S_IFREG) && !defined (S_ISREG)
+#define	S_ISREG(m)	(((m)&S_IFMT) == S_IFREG)	/* file */
+#endif
+
+#if defined (S_IFIFO) && !defined (S_ISFIFO)
+#define	S_ISFIFO(m)	(((m)&S_IFMT) == S_IFIFO)	/* fifo - named pipe */
+#endif
+
+#if defined (S_IFLNK) && !defined (S_ISLNK)
+#define	S_ISLNK(m)	(((m)&S_IFMT) == S_IFLNK)	/* symbolic link */
+#endif
+
+#if defined (S_IFSOCK) && !defined (S_ISSOCK)
+#define	S_ISSOCK(m)	(((m)&S_IFMT) == S_IFSOCK)	/* socket */
+#endif
+
+/*
+ * POSIX 1003.1 5.6.1.2 <sys/stat.h> File Modes
+ */
+
+#if !defined (S_IRWXU)
+#  if !defined (S_IREAD)
+#    define S_IREAD	00400
+#    define S_IWRITE	00200
+#    define S_IEXEC	00100
+#  endif /* S_IREAD */
+
+#  if !defined (S_IRUSR)
+#    define S_IRUSR	S_IREAD			/* read, owner */
+#    define S_IWUSR	S_IWRITE		/* write, owner */
+#    define S_IXUSR	S_IEXEC			/* execute, owner */
+
+#    define S_IRGRP	(S_IREAD  >> 3)		/* read, group */
+#    define S_IWGRP	(S_IWRITE >> 3)		/* write, group */
+#    define S_IXGRP	(S_IEXEC  >> 3)		/* execute, group */
+
+#    define S_IROTH	(S_IREAD  >> 6)		/* read, other */
+#    define S_IWOTH	(S_IWRITE >> 6)		/* write, other */
+#    define S_IXOTH	(S_IEXEC  >> 6)		/* execute, other */
+#  endif /* !S_IRUSR */
+
+#  define S_IRWXU	(S_IRUSR | S_IWUSR | S_IXUSR)
+#  define S_IRWXG	(S_IRGRP | S_IWGRP | S_IXGRP)
+#  define S_IRWXO	(S_IROTH | S_IWOTH | S_IXOTH)
+#endif /* !S_IRWXU */
+
+/* These are non-standard, but are used in builtins.c$symbolic_umask() */
+#define S_IRUGO		(S_IRUSR | S_IRGRP | S_IROTH)
+#define S_IWUGO		(S_IWUSR | S_IWGRP | S_IWOTH)
+#define S_IXUGO		(S_IXUSR | S_IXGRP | S_IXOTH)
+
+#endif /* _POSIXSTAT_H_ */
diff --git a/readline/readline.c b/readline/readline.c
new file mode 100644
index 00000000000..8ff6e98929f
--- /dev/null
+++ b/readline/readline.c
@@ -0,0 +1,2103 @@
+/* readline.c -- a general facility for reading lines of input
+   with emacs style editing and completion. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+#include "posixstat.h"
+#include <fcntl.h>
+#if defined (HAVE_SYS_FILE_H)
+#  include <sys/file.h>
+#endif /* HAVE_SYS_FILE_H */
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#if defined (HAVE_LOCALE_H)
+#  include <locale.h>
+#endif
+
+#include <signal.h>
+#include <stdio.h>
+#include "posixjmp.h"
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+#if defined (__EMX__)
+#  define INCL_DOSPROCESS
+#  include <os2.h>
+#endif /* __EMX__ */
+
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+#ifndef RL_LIBRARY_VERSION
+#  define RL_LIBRARY_VERSION "2.2-bash"
+#endif
+
+/* Evaluates its arguments multiple times. */
+#define SWAP(s, e)  do { int t; t = s; s = e; e = t; } while (0)
+
+/* NOTE: Functions and variables prefixed with `_rl_' are
+   pseudo-global: they are global so they can be shared
+   between files in the readline library, but are not intended
+   to be visible to readline callers. */
+
+/* Variables and functions imported from terminal.c */
+extern int _rl_init_terminal_io ();
+extern void _rl_enable_meta_key ();
+#ifdef _MINIX
+extern void _rl_output_character_function ();
+#else
+extern int _rl_output_character_function ();
+#endif
+extern void _rl_get_screen_size ();
+
+extern int _rl_enable_meta;
+extern int _rl_term_autowrap;
+extern int screenwidth, screenheight, screenchars;
+
+/* Variables and functions imported from rltty.c. */
+extern void rl_prep_terminal (), rl_deprep_terminal ();
+extern void rltty_set_default_bindings ();
+
+/* Functions imported from util.c. */
+extern void _rl_abort_internal ();
+extern void rl_extend_line_buffer ();
+extern int alphabetic ();
+
+/* Functions imported from bind.c. */
+extern void _rl_bind_if_unbound ();
+extern int rl_set_keymap_from_edit_mode ();
+
+/* Functions imported from input.c. */
+extern int _rl_any_typein ();
+extern void _rl_insert_typein ();
+extern int rl_read_key ();
+
+/* Functions imported from nls.c */
+extern int _rl_init_eightbit ();
+
+/* Functions imported from shell.c */
+extern char *get_env_value ();
+
+/* External redisplay functions and variables from display.c */
+extern void _rl_move_vert ();
+extern void _rl_update_final ();
+extern void _rl_clear_to_eol ();
+extern void _rl_clear_screen ();
+
+extern void _rl_save_prompt ();
+extern void _rl_restore_prompt ();
+
+extern void _rl_erase_at_end_of_line ();
+extern void _rl_move_cursor_relative ();
+
+extern int _rl_vis_botlin;
+extern int _rl_last_c_pos;
+extern int _rl_horizontal_scroll_mode;
+extern int rl_display_fixed;
+extern int _rl_suppress_redisplay;
+extern char *rl_display_prompt;
+
+/* Variables imported from complete.c. */
+extern char *rl_completer_word_break_characters;
+extern char *rl_basic_word_break_characters;
+extern int rl_completion_query_items;
+extern int rl_complete_with_tilde_expansion;
+
+/* Variables and functions from macro.c. */
+extern void _rl_add_macro_char ();
+extern void _rl_with_macro_input ();
+extern int _rl_next_macro_key ();
+extern int _rl_defining_kbd_macro;
+
+#if defined (VI_MODE)
+/* Functions imported from vi_mode.c. */
+extern void _rl_vi_set_last ();
+extern void _rl_vi_reset_last ();
+extern void _rl_vi_done_inserting ();
+extern int _rl_vi_textmod_command ();
+extern void _rl_vi_initialize_line ();
+#endif /* VI_MODE */
+
+extern UNDO_LIST *rl_undo_list;
+extern int _rl_doing_an_undo;
+
+/* Forward declarations used in this file. */
+void _rl_free_history_entry ();
+
+int _rl_dispatch ();
+int _rl_init_argument ();
+
+static char *readline_internal ();
+static void readline_initialize_everything ();
+static void start_using_history ();
+static void bind_arrow_keys ();
+
+#if !defined (__GO32__)
+static void readline_default_bindings ();
+#endif /* !__GO32__ */
+
+#if defined (__GO32__)
+#  include <go32.h>
+#  include <pc.h>
+#  undef HANDLE_SIGNALS
+#endif /* __GO32__ */
+
+extern char *xmalloc (), *xrealloc ();
+
+/* **************************************************************** */
+/*								    */
+/*			Line editing input utility		    */
+/*								    */
+/* **************************************************************** */
+
+char *rl_library_version = RL_LIBRARY_VERSION;
+
+/* A pointer to the keymap that is currently in use.
+   By default, it is the standard emacs keymap. */
+Keymap _rl_keymap = emacs_standard_keymap;
+
+/* The current style of editing. */
+int rl_editing_mode = emacs_mode;
+
+/* Non-zero if we called this function from _rl_dispatch().  It's present
+   so functions can find out whether they were called from a key binding
+   or directly from an application. */
+int rl_dispatching;
+
+/* Non-zero if the previous command was a kill command. */
+int _rl_last_command_was_kill = 0;
+
+/* The current value of the numeric argument specified by the user. */
+int rl_numeric_arg = 1;
+
+/* Non-zero if an argument was typed. */
+int rl_explicit_arg = 0;
+
+/* Temporary value used while generating the argument. */
+int rl_arg_sign = 1;
+
+/* Non-zero means we have been called at least once before. */
+static int rl_initialized;
+
+/* If non-zero, this program is running in an EMACS buffer. */
+static int running_in_emacs;
+
+/* The current offset in the current input line. */
+int rl_point;
+
+/* Mark in the current input line. */
+int rl_mark;
+
+/* Length of the current input line. */
+int rl_end;
+
+/* Make this non-zero to return the current input_line. */
+int rl_done;
+
+/* The last function executed by readline. */
+Function *rl_last_func = (Function *)NULL;
+
+/* Top level environment for readline_internal (). */
+procenv_t readline_top_level;
+
+/* The streams we interact with. */
+FILE *_rl_in_stream, *_rl_out_stream;
+
+/* The names of the streams that we do input and output to. */
+FILE *rl_instream = (FILE *)NULL;
+FILE *rl_outstream = (FILE *)NULL;
+
+/* Non-zero means echo characters as they are read. */
+int readline_echoing_p = 1;
+
+/* Current prompt. */
+char *rl_prompt;
+int rl_visible_prompt_length = 0;
+
+/* The number of characters read in order to type this complete command. */
+int rl_key_sequence_length = 0;
+
+/* If non-zero, then this is the address of a function to call just
+   before readline_internal () prints the first prompt. */
+Function *rl_startup_hook = (Function *)NULL;
+
+/* What we use internally.  You should always refer to RL_LINE_BUFFER. */
+static char *the_line;
+
+/* The character that can generate an EOF.  Really read from
+   the terminal driver... just defaulted here. */
+int _rl_eof_char = CTRL ('D');
+
+/* Non-zero makes this the next keystroke to read. */
+int rl_pending_input = 0;
+
+/* Pointer to a useful terminal name. */
+char *rl_terminal_name = (char *)NULL;
+
+/* Non-zero means to always use horizontal scrolling in line display. */
+int _rl_horizontal_scroll_mode = 0;
+
+/* Non-zero means to display an asterisk at the starts of history lines
+   which have been modified. */
+int _rl_mark_modified_lines = 0;  
+
+/* The style of `bell' notification preferred.  This can be set to NO_BELL,
+   AUDIBLE_BELL, or VISIBLE_BELL. */
+int _rl_bell_preference = AUDIBLE_BELL;
+     
+/* String inserted into the line by rl_insert_comment (). */
+char *_rl_comment_begin;
+
+/* Keymap holding the function currently being executed. */
+Keymap rl_executing_keymap;
+
+/* Line buffer and maintenence. */
+char *rl_line_buffer = (char *)NULL;
+int rl_line_buffer_len = 0;
+
+/* Forward declarations used by the display and termcap code. */
+
+/* **************************************************************** */
+/*								    */
+/*			`Forward' declarations  		    */
+/*								    */
+/* **************************************************************** */
+
+/* Non-zero means do not parse any lines other than comments and
+   parser directives. */
+unsigned char _rl_parsing_conditionalized_out = 0;
+
+/* Non-zero means to convert characters with the meta bit set to
+   escape-prefixed characters so we can indirect through
+   emacs_meta_keymap or vi_escape_keymap. */
+int _rl_convert_meta_chars_to_ascii = 1;
+
+/* Non-zero means to output characters with the meta bit set directly
+   rather than as a meta-prefixed escape sequence. */
+int _rl_output_meta_chars = 0;
+
+/* **************************************************************** */
+/*								    */
+/*			Top Level Functions			    */
+/*								    */
+/* **************************************************************** */
+
+/* Non-zero means treat 0200 bit in terminal input as Meta bit. */
+int _rl_meta_flag = 0;	/* Forward declaration */
+
+/* Read a line of input.  Prompt with PROMPT.  An empty PROMPT means
+   none.  A return value of NULL means that EOF was encountered. */
+char *
+readline (prompt)
+     char *prompt;
+{
+  char *value;
+
+  rl_prompt = prompt;
+
+  /* If we are at EOF return a NULL string. */
+  if (rl_pending_input == EOF)
+    {
+      rl_pending_input = 0;
+      return ((char *)NULL);
+    }
+
+  rl_visible_prompt_length = rl_expand_prompt (rl_prompt);
+
+  rl_initialize ();
+  (*rl_prep_term_function) (_rl_meta_flag);
+
+#if defined (HANDLE_SIGNALS)
+  rl_set_signals ();
+#endif
+
+  value = readline_internal ();
+  (*rl_deprep_term_function) ();
+
+#if defined (HANDLE_SIGNALS)
+  rl_clear_signals ();
+#endif
+
+  return (value);
+}
+
+#if defined (READLINE_CALLBACKS)
+#  define STATIC_CALLBACK
+#else
+#  define STATIC_CALLBACK static
+#endif
+
+STATIC_CALLBACK void
+readline_internal_setup ()
+{
+  _rl_in_stream = rl_instream;
+  _rl_out_stream = rl_outstream;
+
+  if (rl_startup_hook)
+    (*rl_startup_hook) ();
+
+  if (readline_echoing_p == 0)
+    {
+      if (rl_prompt)
+	{
+	  fprintf (_rl_out_stream, "%s", rl_prompt);
+	  fflush (_rl_out_stream);
+	}
+    }
+  else
+    {
+      rl_on_new_line ();
+      (*rl_redisplay_function) ();
+#if defined (VI_MODE)
+      if (rl_editing_mode == vi_mode)
+	rl_vi_insertion_mode (1, 0);
+#endif /* VI_MODE */
+    }
+}
+
+STATIC_CALLBACK char *
+readline_internal_teardown (eof)
+     int eof;
+{
+  char *temp;
+  HIST_ENTRY *entry;
+
+  /* Restore the original of this history line, iff the line that we
+     are editing was originally in the history, AND the line has changed. */
+  entry = current_history ();
+
+  if (entry && rl_undo_list)
+    {
+      temp = savestring (the_line);
+      rl_revert_line (1, 0);
+      entry = replace_history_entry (where_history (), the_line, (HIST_ENTRY *)NULL);
+      _rl_free_history_entry (entry);
+
+      strcpy (the_line, temp);
+      free (temp);
+    }
+
+  /* At any rate, it is highly likely that this line has an undo list.  Get
+     rid of it now. */
+  if (rl_undo_list)
+    free_undo_list ();
+
+  return (eof ? (char *)NULL : savestring (the_line));
+}
+
+STATIC_CALLBACK int
+#if defined (READLINE_CALLBACKS)
+readline_internal_char ()
+#else
+readline_internal_charloop ()
+#endif
+{
+  static int lastc, eof_found;
+  int c, code, lk;
+
+  lastc = -1;
+  eof_found = 0;
+
+#if !defined (READLINE_CALLBACKS)
+  while (rl_done == 0)
+    {
+#endif
+      lk = _rl_last_command_was_kill;
+
+      code = setjmp (readline_top_level);
+
+      if (code)
+	(*rl_redisplay_function) ();
+
+      if (rl_pending_input == 0)
+	{
+	  /* Then initialize the argument and number of keys read. */
+	  _rl_init_argument ();
+	  rl_key_sequence_length = 0;
+	}
+
+      c = rl_read_key ();
+
+      /* EOF typed to a non-blank line is a <NL>. */
+      if (c == EOF && rl_end)
+	c = NEWLINE;
+
+      /* The character _rl_eof_char typed to blank line, and not as the
+	 previous character is interpreted as EOF. */
+      if (((c == _rl_eof_char && lastc != c) || c == EOF) && !rl_end)
+	{
+#if defined (READLINE_CALLBACKS)
+	  return (rl_done = 1);
+#else
+	  eof_found = 1;
+	  break;
+#endif
+	}
+
+      lastc = c;
+      _rl_dispatch (c, _rl_keymap);
+
+      /* If there was no change in _rl_last_command_was_kill, then no kill
+	 has taken place.  Note that if input is pending we are reading
+	 a prefix command, so nothing has changed yet. */
+      if (rl_pending_input == 0 && lk == _rl_last_command_was_kill)
+	_rl_last_command_was_kill = 0;
+
+#if defined (VI_MODE)
+      /* In vi mode, when you exit insert mode, the cursor moves back
+	 over the previous character.  We explicitly check for that here. */
+      if (rl_editing_mode == vi_mode && _rl_keymap == vi_movement_keymap)
+	rl_vi_check ();
+#endif /* VI_MODE */
+
+      if (rl_done == 0)
+	(*rl_redisplay_function) ();
+
+#if defined (READLINE_CALLBACKS)
+      return 0;
+#else
+    }
+
+  return (eof_found);
+#endif
+}
+
+#if defined (READLINE_CALLBACKS)
+static int
+readline_internal_charloop ()
+{
+  int eof;
+
+  while (rl_done == 0)
+    eof = readline_internal_char ();
+  return (eof);
+}
+#endif /* READLINE_CALLBACKS */
+
+/* Read a line of input from the global rl_instream, doing output on
+   the global rl_outstream.
+   If rl_prompt is non-null, then that is our prompt. */
+static char *
+readline_internal ()
+{
+  int eof;
+
+  readline_internal_setup ();
+  eof = readline_internal_charloop ();
+  return (readline_internal_teardown (eof));
+}
+
+void
+_rl_init_line_state ()
+{
+  rl_point = rl_end = 0;
+  the_line = rl_line_buffer;
+  the_line[0] = 0;
+}
+
+void
+_rl_set_the_line ()
+{
+  the_line = rl_line_buffer;
+}
+
+/* Do the command associated with KEY in MAP.
+   If the associated command is really a keymap, then read
+   another key, and dispatch into that map. */
+int
+_rl_dispatch (key, map)
+     register int key;
+     Keymap map;
+{
+  int r, newkey;
+  char *macro;
+  Function *func;
+
+  if (META_CHAR (key) && _rl_convert_meta_chars_to_ascii)
+    {
+      if (map[ESC].type == ISKMAP)
+	{
+	  if (_rl_defining_kbd_macro)
+	    _rl_add_macro_char (ESC);
+	  map = FUNCTION_TO_KEYMAP (map, ESC);
+	  key = UNMETA (key);
+	  rl_key_sequence_length += 2;
+	  return (_rl_dispatch (key, map));
+	}
+      else
+	ding ();
+      return 0;
+    }
+
+  if (_rl_defining_kbd_macro)
+    _rl_add_macro_char (key);
+
+  r = 0;
+  switch (map[key].type)
+    {
+    case ISFUNC:
+      func = map[key].function;
+      if (func != (Function *)NULL)
+	{
+	  /* Special case rl_do_lowercase_version (). */
+	  if (func == rl_do_lowercase_version)
+	    return (_rl_dispatch (_rl_to_lower (key), map));
+
+	  rl_executing_keymap = map;
+
+#if 0
+	  _rl_suppress_redisplay = (map[key].function == rl_insert) && _rl_input_available ();
+#endif
+
+	  rl_dispatching = 1;
+	  r = (*map[key].function)(rl_numeric_arg * rl_arg_sign, key);
+	  rl_dispatching = 0;
+
+	  /* If we have input pending, then the last command was a prefix
+	     command.  Don't change the state of rl_last_func.  Otherwise,
+	     remember the last command executed in this variable. */
+	  if (!rl_pending_input && map[key].function != rl_digit_argument)
+	    rl_last_func = map[key].function;
+	}
+      else
+	{
+	  _rl_abort_internal ();
+	  return -1;
+	}
+      break;
+
+    case ISKMAP:
+      if (map[key].function != (Function *)NULL)
+	{
+	  rl_key_sequence_length++;
+	  newkey = rl_read_key ();
+	  r = _rl_dispatch (newkey, FUNCTION_TO_KEYMAP (map, key));
+	}
+      else
+	{
+	  _rl_abort_internal ();
+	  return -1;
+	}
+      break;
+
+    case ISMACR:
+      if (map[key].function != (Function *)NULL)
+	{
+	  macro = savestring ((char *)map[key].function);
+	  _rl_with_macro_input (macro);
+	  return 0;
+	}
+      break;
+    }
+#if defined (VI_MODE)
+  if (rl_editing_mode == vi_mode && _rl_keymap == vi_movement_keymap &&
+      _rl_vi_textmod_command (key))
+    _rl_vi_set_last (key, rl_numeric_arg, rl_arg_sign);
+#endif
+  return (r);
+}
+
+/* **************************************************************** */
+/*								    */
+/*			Initializations 			    */
+/*								    */
+/* **************************************************************** */
+
+/* Initialize readline (and terminal if not already). */
+int
+rl_initialize ()
+{
+  /* If we have never been called before, initialize the
+     terminal and data structures. */
+  if (!rl_initialized)
+    {
+      readline_initialize_everything ();
+      rl_initialized++;
+    }
+
+  /* Initalize the current line information. */
+  _rl_init_line_state ();
+
+  /* We aren't done yet.  We haven't even gotten started yet! */
+  rl_done = 0;
+
+  /* Tell the history routines what is going on. */
+  start_using_history ();
+
+  /* Make the display buffer match the state of the line. */
+  rl_reset_line_state ();
+
+  /* No such function typed yet. */
+  rl_last_func = (Function *)NULL;
+
+  /* Parsing of key-bindings begins in an enabled state. */
+  _rl_parsing_conditionalized_out = 0;
+
+#if defined (VI_MODE)
+  if (rl_editing_mode == vi_mode)
+    _rl_vi_initialize_line ();
+#endif
+
+  return 0;
+}
+
+#if defined (__EMX__)
+static void
+_emx_build_environ ()
+{
+  TIB *tibp;
+  PIB *pibp;
+  char *t, **tp;
+  int c;
+
+  DosGetInfoBlocks (&tibp, &pibp);
+  t = pibp->pib_pchenv;
+  for (c = 1; *t; c++)
+    t += strlen (t) + 1;
+  tp = environ = (char **)xmalloc ((c + 1) * sizeof (char *));
+  t = pibp->pib_pchenv;
+  while (*t)
+    {
+      *tp++ = t;
+      t += strlen (t) + 1;
+    }
+  *tp = 0;
+}
+#endif /* __EMX__ */
+
+/* Initialize the entire state of the world. */
+static void
+readline_initialize_everything ()
+{
+#if defined (__EMX__)
+  if (environ == 0)
+    _emx_build_environ ();
+#endif
+
+  /* Find out if we are running in Emacs. */
+  running_in_emacs = get_env_value ("EMACS") != (char *)0;
+
+  /* Set up input and output if they are not already set up. */
+  if (!rl_instream)
+    rl_instream = stdin;
+
+  if (!rl_outstream)
+    rl_outstream = stdout;
+
+  /* Bind _rl_in_stream and _rl_out_stream immediately.  These values
+     may change, but they may also be used before readline_internal ()
+     is called. */
+  _rl_in_stream = rl_instream;
+  _rl_out_stream = rl_outstream;
+
+  /* Allocate data structures. */
+  if (rl_line_buffer == 0)
+    rl_line_buffer = xmalloc (rl_line_buffer_len = DEFAULT_BUFFER_SIZE);
+
+  /* Initialize the terminal interface. */
+  _rl_init_terminal_io ((char *)NULL);
+
+#if !defined (__GO32__)
+  /* Bind tty characters to readline functions. */
+  readline_default_bindings ();
+#endif /* !__GO32__ */
+
+  /* Initialize the function names. */
+  rl_initialize_funmap ();
+
+  /* Decide whether we should automatically go into eight-bit mode. */
+  _rl_init_eightbit ();
+      
+  /* Read in the init file. */
+  rl_read_init_file ((char *)NULL);
+
+  /* XXX */
+  if (_rl_horizontal_scroll_mode && _rl_term_autowrap)
+    {
+      screenwidth--;
+      screenchars -= screenheight;
+    }
+
+  /* Override the effect of any `set keymap' assignments in the
+     inputrc file. */
+  rl_set_keymap_from_edit_mode ();
+
+  /* Try to bind a common arrow key prefix, if not already bound. */
+  bind_arrow_keys ();
+
+  /* Enable the meta key, if this terminal has one. */
+  if (_rl_enable_meta)
+    _rl_enable_meta_key ();
+
+  /* If the completion parser's default word break characters haven't
+     been set yet, then do so now. */
+  if (rl_completer_word_break_characters == (char *)NULL)
+    rl_completer_word_break_characters = rl_basic_word_break_characters;
+}
+
+/* If this system allows us to look at the values of the regular
+   input editing characters, then bind them to their readline
+   equivalents, iff the characters are not bound to keymaps. */
+static void
+readline_default_bindings ()
+{
+  rltty_set_default_bindings (_rl_keymap);
+}
+
+static void
+bind_arrow_keys_internal ()
+{
+  Function *f;
+
+  f = rl_function_of_keyseq ("\033[A", _rl_keymap, (int *)NULL);
+  if (!f || f == rl_do_lowercase_version)
+    {
+      _rl_bind_if_unbound ("\033[A", rl_get_previous_history);
+      _rl_bind_if_unbound ("\033[B", rl_get_next_history);
+      _rl_bind_if_unbound ("\033[C", rl_forward);
+      _rl_bind_if_unbound ("\033[D", rl_backward);
+    }
+
+  f = rl_function_of_keyseq ("\033OA", _rl_keymap, (int *)NULL);
+  if (!f || f == rl_do_lowercase_version)
+    {
+      _rl_bind_if_unbound ("\033OA", rl_get_previous_history);
+      _rl_bind_if_unbound ("\033OB", rl_get_next_history);
+      _rl_bind_if_unbound ("\033OC", rl_forward);
+      _rl_bind_if_unbound ("\033OD", rl_backward);
+    }
+}
+
+/* Try and bind the common arrow key prefix after giving termcap and
+   the inputrc file a chance to bind them and create `real' keymaps
+   for the arrow key prefix. */
+static void
+bind_arrow_keys ()
+{
+  Keymap xkeymap;
+
+  xkeymap = _rl_keymap;
+
+  _rl_keymap = emacs_standard_keymap;
+  bind_arrow_keys_internal ();
+
+#if defined (VI_MODE)
+  _rl_keymap = vi_movement_keymap;
+  bind_arrow_keys_internal ();
+#endif
+
+  _rl_keymap = xkeymap;
+}
+
+
+/* **************************************************************** */
+/*								    */
+/*			Numeric Arguments			    */
+/*								    */
+/* **************************************************************** */
+
+/* Handle C-u style numeric args, as well as M--, and M-digits. */
+static int
+rl_digit_loop ()
+{
+  int key, c, sawminus, sawdigits;
+
+  _rl_save_prompt ();
+
+  sawminus = sawdigits = 0;
+  while (1)
+    {
+      rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg);
+      key = c = rl_read_key ();
+
+      /* If we see a key bound to `universal-argument' after seeing digits,
+	 it ends the argument but is otherwise ignored. */
+      if (_rl_keymap[c].type == ISFUNC &&
+	  _rl_keymap[c].function == rl_universal_argument)
+	{
+	  if (sawdigits == 0)
+	    {
+	      rl_numeric_arg *= 4;
+	      continue;
+	    }
+	  else
+	    {
+	      key = rl_read_key ();
+	      _rl_restore_prompt ();
+	      rl_clear_message ();
+	      return (_rl_dispatch (key, _rl_keymap));
+	    }
+	}
+
+      c = UNMETA (c);
+
+      if (_rl_digit_p (c))
+	{
+	  rl_numeric_arg = rl_explicit_arg ? (rl_numeric_arg * 10) + c - '0' : c - '0';
+	  sawdigits = rl_explicit_arg = 1;
+	}
+      else if (c == '-' && rl_explicit_arg == 0)
+	{
+	  rl_numeric_arg = sawminus = 1;
+	  rl_arg_sign = -1;
+	}
+      else
+	{
+	  /* Make M-- command equivalent to M--1 command. */
+	  if (sawminus && rl_numeric_arg == 1 && rl_explicit_arg == 0)
+	    rl_explicit_arg = 1;
+	  _rl_restore_prompt ();
+	  rl_clear_message ();
+	  return (_rl_dispatch (key, _rl_keymap));
+	}
+    }
+
+  return 0;
+}
+
+/* Add the current digit to the argument in progress. */
+int
+rl_digit_argument (ignore, key)
+     int ignore, key;
+{
+  rl_pending_input = key;
+  return (rl_digit_loop ());
+}
+
+/* What to do when you abort reading an argument. */
+int
+rl_discard_argument ()
+{
+  ding ();
+  rl_clear_message ();
+  _rl_init_argument ();
+  return 0;
+}
+
+/* Create a default argument. */
+int
+_rl_init_argument ()
+{
+  rl_numeric_arg = rl_arg_sign = 1;
+  rl_explicit_arg = 0;
+  return 0;
+}
+
+/* C-u, universal argument.  Multiply the current argument by 4.
+   Read a key.  If the key has nothing to do with arguments, then
+   dispatch on it.  If the key is the abort character then abort. */
+int
+rl_universal_argument (count, key)
+     int count, key;
+{
+  rl_numeric_arg *= 4;
+  return (rl_digit_loop ());
+}
+
+/* **************************************************************** */
+/*								    */
+/*			Insert and Delete			    */
+/*								    */
+/* **************************************************************** */
+
+/* Insert a string of text into the line at point.  This is the only
+   way that you should do insertion.  rl_insert () calls this
+   function. */
+int
+rl_insert_text (string)
+     char *string;
+{
+  register int i, l = strlen (string);
+
+  if (rl_end + l >= rl_line_buffer_len)
+    rl_extend_line_buffer (rl_end + l);
+
+  for (i = rl_end; i >= rl_point; i--)
+    the_line[i + l] = the_line[i];
+  strncpy (the_line + rl_point, string, l);
+
+  /* Remember how to undo this if we aren't undoing something. */
+  if (!_rl_doing_an_undo)
+    {
+      /* If possible and desirable, concatenate the undos. */
+      if ((l == 1) &&
+	  rl_undo_list &&
+	  (rl_undo_list->what == UNDO_INSERT) &&
+	  (rl_undo_list->end == rl_point) &&
+	  (rl_undo_list->end - rl_undo_list->start < 20))
+	rl_undo_list->end++;
+      else
+	rl_add_undo (UNDO_INSERT, rl_point, rl_point + l, (char *)NULL);
+    }
+  rl_point += l;
+  rl_end += l;
+  the_line[rl_end] = '\0';
+  return l;
+}
+
+/* Delete the string between FROM and TO.  FROM is
+   inclusive, TO is not. */
+int
+rl_delete_text (from, to)
+     int from, to;
+{
+  register char *text;
+  register int diff, i;
+
+  /* Fix it if the caller is confused. */
+  if (from > to)
+    SWAP (from, to);
+
+  /* fix boundaries */
+  if (to > rl_end)
+    {
+      to = rl_end;
+      if (from > to)
+        from = to;
+    }
+
+  text = rl_copy_text (from, to);
+
+  /* Some versions of strncpy() can't handle overlapping arguments. */
+  diff = to - from;
+  for (i = from; i < rl_end - diff; i++)
+    the_line[i] = the_line[i + diff];
+
+  /* Remember how to undo this delete. */
+  if (_rl_doing_an_undo == 0)
+    rl_add_undo (UNDO_DELETE, from, to, text);
+  else
+    free (text);
+
+  rl_end -= diff;
+  the_line[rl_end] = '\0';
+  return (diff);
+}
+
+/* Fix up point so that it is within the line boundaries after killing
+   text.  If FIX_MARK_TOO is non-zero, the mark is forced within line
+   boundaries also. */
+
+#define _RL_FIX_POINT(x) \
+	do { \
+	if (x > rl_end) \
+	  x = rl_end; \
+	else if (x < 0) \
+	  x = 0; \
+	} while (0)
+
+void
+_rl_fix_point (fix_mark_too)
+     int fix_mark_too;
+{
+  _RL_FIX_POINT (rl_point);
+  if (fix_mark_too)
+    _RL_FIX_POINT (rl_mark);
+}
+#undef _RL_FIX_POINT
+
+void
+_rl_replace_text (text, start, end)
+     char *text;
+     int start, end;
+{
+  rl_begin_undo_group ();
+  rl_delete_text (start, end + 1);
+  rl_point = start;
+  rl_insert_text (text);
+  rl_end_undo_group ();
+}
+
+/* **************************************************************** */
+/*								    */
+/*			Readline character functions		    */
+/*								    */
+/* **************************************************************** */
+
+/* This is not a gap editor, just a stupid line input routine.  No hair
+   is involved in writing any of the functions, and none should be. */
+
+/* Note that:
+
+   rl_end is the place in the string that we would place '\0';
+   i.e., it is always safe to place '\0' there.
+
+   rl_point is the place in the string where the cursor is.  Sometimes
+   this is the same as rl_end.
+
+   Any command that is called interactively receives two arguments.
+   The first is a count: the numeric arg pased to this command.
+   The second is the key which invoked this command.
+*/
+
+/* **************************************************************** */
+/*								    */
+/*			Movement Commands			    */
+/*								    */
+/* **************************************************************** */
+
+/* Note that if you `optimize' the display for these functions, you cannot
+   use said functions in other functions which do not do optimizing display.
+   I.e., you will have to update the data base for rl_redisplay, and you
+   might as well let rl_redisplay do that job. */
+
+/* Move forward COUNT characters. */
+int
+rl_forward (count, key)
+     int count, key;
+{
+  if (count < 0)
+    rl_backward (-count, key);
+  else if (count > 0)
+    {
+      int end = rl_point + count;
+#if defined (VI_MODE)
+      int lend = rl_end - (rl_editing_mode == vi_mode);
+#else
+      int lend = rl_end;
+#endif
+
+      if (end > lend)
+	{
+	  rl_point = lend;
+	  ding ();
+	}
+      else
+	rl_point = end;
+    }
+  return 0;
+}
+
+/* Move backward COUNT characters. */
+int
+rl_backward (count, key)
+     int count, key;
+{
+  if (count < 0)
+    rl_forward (-count, key);
+  else if (count > 0)
+    {
+      if (rl_point < count)
+	{
+	  rl_point = 0;
+	  ding ();
+	}
+      else
+        rl_point -= count;
+    }
+  return 0;
+}
+
+/* Move to the beginning of the line. */
+int
+rl_beg_of_line (count, key)
+     int count, key;
+{
+  rl_point = 0;
+  return 0;
+}
+
+/* Move to the end of the line. */
+int
+rl_end_of_line (count, key)
+     int count, key;
+{
+  rl_point = rl_end;
+  return 0;
+}
+
+/* Move forward a word.  We do what Emacs does. */
+int
+rl_forward_word (count, key)
+     int count, key;
+{
+  int c;
+
+  if (count < 0)
+    {
+      rl_backward_word (-count, key);
+      return 0;
+    }
+
+  while (count)
+    {
+      if (rl_point == rl_end)
+	return 0;
+
+      /* If we are not in a word, move forward until we are in one.
+	 Then, move forward until we hit a non-alphabetic character. */
+      c = the_line[rl_point];
+      if (alphabetic (c) == 0)
+	{
+	  while (++rl_point < rl_end)
+	    {
+	      c = the_line[rl_point];
+	      if (alphabetic (c))
+		break;
+	    }
+	}
+      if (rl_point == rl_end)
+	return 0;
+      while (++rl_point < rl_end)
+	{
+	  c = the_line[rl_point];
+	  if (alphabetic (c) == 0)
+	    break;
+	}
+      --count;
+    }
+  return 0;
+}
+
+/* Move backward a word.  We do what Emacs does. */
+int
+rl_backward_word (count, key)
+     int count, key;
+{
+  int c;
+
+  if (count < 0)
+    {
+      rl_forward_word (-count, key);
+      return 0;
+    }
+
+  while (count)
+    {
+      if (!rl_point)
+	return 0;
+
+      /* Like rl_forward_word (), except that we look at the characters
+	 just before point. */
+
+      c = the_line[rl_point - 1];
+      if (alphabetic (c) == 0)
+	{
+	  while (--rl_point)
+	    {
+	      c = the_line[rl_point - 1];
+	      if (alphabetic (c))
+		break;
+	    }
+	}
+
+      while (rl_point)
+	{
+	  c = the_line[rl_point - 1];
+	  if (alphabetic (c) == 0)
+	    break;
+	  else
+	    --rl_point;
+	}
+      --count;
+    }
+  return 0;
+}
+
+/* Clear the current line.  Numeric argument to C-l does this. */
+int
+rl_refresh_line ()
+{
+  int curr_line, nleft;
+
+  /* Find out whether or not there might be invisible characters in the
+     editing buffer. */
+  if (rl_display_prompt == rl_prompt)
+    nleft = _rl_last_c_pos - screenwidth - rl_visible_prompt_length;
+  else
+    nleft = _rl_last_c_pos - screenwidth;
+
+  if (nleft > 0)
+    curr_line = 1 + nleft / screenwidth;
+  else
+    curr_line = 0;
+
+  _rl_move_vert (curr_line);
+  _rl_move_cursor_relative (0, the_line);   /* XXX is this right */
+
+#if defined (__GO32__)
+  {
+    int row, col, width, row_start;
+
+    ScreenGetCursor (&row, &col);
+    width = ScreenCols ();
+    row_start = ScreenPrimary + (row * width);
+    memset (row_start + col, 0, (width - col) * 2);
+  }
+#else /* !__GO32__ */
+  _rl_clear_to_eol (0);		/* arg of 0 means to not use spaces */
+#endif /* !__GO32__ */
+
+  rl_forced_update_display ();
+  rl_display_fixed = 1;
+
+  return 0;
+}
+
+/* C-l typed to a line without quoting clears the screen, and then reprints
+   the prompt and the current input line.  Given a numeric arg, redraw only
+   the current line. */
+int
+rl_clear_screen (count, key)
+     int count, key;
+{
+  if (rl_explicit_arg)
+    {
+      rl_refresh_line ();
+      return 0;
+    }
+
+  _rl_clear_screen ();		/* calls termcap function to clear screen */
+  rl_forced_update_display ();
+  rl_display_fixed = 1;
+
+  return 0;
+}
+
+int
+rl_arrow_keys (count, c)
+     int count, c;
+{
+  int ch;
+
+  ch = rl_read_key ();
+
+  switch (_rl_to_upper (ch))
+    {
+    case 'A':
+      rl_get_previous_history (count, ch);
+      break;
+
+    case 'B':
+      rl_get_next_history (count, ch);
+      break;
+
+    case 'C':
+      rl_forward (count, ch);
+      break;
+
+    case 'D':
+      rl_backward (count, ch);
+      break;
+
+    default:
+      ding ();
+    }
+  return 0;
+}
+
+
+/* **************************************************************** */
+/*								    */
+/*			Text commands				    */
+/*								    */
+/* **************************************************************** */
+
+/* Insert the character C at the current location, moving point forward. */
+int
+rl_insert (count, c)
+     int count, c;
+{
+  register int i;
+  char *string;
+
+  if (count <= 0)
+    return 0;
+
+  /* If we can optimize, then do it.  But don't let people crash
+     readline because of extra large arguments. */
+  if (count > 1 && count <= 1024)
+    {
+      string = xmalloc (1 + count);
+
+      for (i = 0; i < count; i++)
+	string[i] = c;
+
+      string[i] = '\0';
+      rl_insert_text (string);
+      free (string);
+
+      return 0;
+    }
+
+  if (count > 1024)
+    {
+      int decreaser;
+      char str[1024+1];
+
+      for (i = 0; i < 1024; i++)
+	str[i] = c;
+
+      while (count)
+	{
+	  decreaser = (count > 1024 ? 1024 : count);
+	  str[decreaser] = '\0';
+	  rl_insert_text (str);
+	  count -= decreaser;
+	}
+
+      return 0;
+    }
+
+  /* We are inserting a single character.
+     If there is pending input, then make a string of all of the
+     pending characters that are bound to rl_insert, and insert
+     them all. */
+  if (_rl_any_typein ())
+    _rl_insert_typein (c);
+  else
+    {
+      /* Inserting a single character. */
+      char str[2];
+
+      str[1] = '\0';
+      str[0] = c;
+      rl_insert_text (str);
+    }
+  return 0;
+}
+
+/* Insert the next typed character verbatim. */
+int
+rl_quoted_insert (count, key)
+     int count, key;
+{
+  int c;
+
+  c = rl_read_key ();
+  return (rl_insert (count, c));  
+}
+
+/* Insert a tab character. */
+int
+rl_tab_insert (count, key)
+     int count, key;
+{
+  return (rl_insert (count, '\t'));
+}
+
+/* What to do when a NEWLINE is pressed.  We accept the whole line.
+   KEY is the key that invoked this command.  I guess it could have
+   meaning in the future. */
+int
+rl_newline (count, key)
+     int count, key;
+{
+  rl_done = 1;
+
+#if defined (VI_MODE)
+  if (rl_editing_mode == vi_mode)
+    {
+      _rl_vi_done_inserting ();
+      _rl_vi_reset_last ();
+    }
+#endif /* VI_MODE */
+
+  if (readline_echoing_p)
+    _rl_update_final ();
+  return 0;
+}
+
+/* What to do for some uppercase characters, like meta characters,
+   and some characters appearing in emacs_ctlx_keymap.  This function
+   is just a stub, you bind keys to it and the code in _rl_dispatch ()
+   is special cased. */
+int
+rl_do_lowercase_version (ignore1, ignore2)
+     int ignore1, ignore2;
+{
+  return 0;
+}
+
+/* Rubout the character behind point. */
+int
+rl_rubout (count, key)
+     int count, key;
+{
+  if (count < 0)
+    {
+      rl_delete (-count, key);
+      return 0;
+    }
+
+  if (!rl_point)
+    {
+      ding ();
+      return -1;
+    }
+
+  if (count > 1 || rl_explicit_arg)
+    {
+      int orig_point = rl_point;
+      rl_backward (count, key);
+      rl_kill_text (orig_point, rl_point);
+    }
+  else
+    {
+      int c = the_line[--rl_point];
+      rl_delete_text (rl_point, rl_point + 1);
+
+      if (rl_point == rl_end && isprint (c) && _rl_last_c_pos)
+	{
+	  int l;
+	  l = rl_character_len (c, rl_point);
+	  _rl_erase_at_end_of_line (l);
+	}
+    }
+  return 0;
+}
+
+/* Delete the character under the cursor.  Given a numeric argument,
+   kill that many characters instead. */
+int
+rl_delete (count, key)
+     int count, key;
+{
+  if (count < 0)
+    return (rl_rubout (-count, key));
+
+  if (rl_point == rl_end)
+    {
+      ding ();
+      return -1;
+    }
+
+  if (count > 1 || rl_explicit_arg)
+    {
+      int orig_point = rl_point;
+      rl_forward (count, key);
+      rl_kill_text (orig_point, rl_point);
+      rl_point = orig_point;
+      return 0;
+    }
+  else
+    return (rl_delete_text (rl_point, rl_point + 1));
+  
+}
+
+/* Delete all spaces and tabs around point. */
+int
+rl_delete_horizontal_space (count, ignore)
+     int count, ignore;
+{
+  int start = rl_point;
+
+  while (rl_point && whitespace (the_line[rl_point - 1]))
+    rl_point--;
+
+  start = rl_point;
+
+  while (rl_point < rl_end && whitespace (the_line[rl_point]))
+    rl_point++;
+
+  if (start != rl_point)
+    {
+      rl_delete_text (start, rl_point);
+      rl_point = start;
+    }
+  return 0;
+}
+
+#ifndef RL_COMMENT_BEGIN_DEFAULT
+#define RL_COMMENT_BEGIN_DEFAULT "#"
+#endif
+
+/* Turn the current line into a comment in shell history.
+   A K*rn shell style function. */
+int
+rl_insert_comment (count, key)
+     int count, key;
+{
+  rl_beg_of_line (1, key);
+  rl_insert_text (_rl_comment_begin ? _rl_comment_begin
+				    : RL_COMMENT_BEGIN_DEFAULT);
+  (*rl_redisplay_function) ();
+  rl_newline (1, '\n');
+  return (0);
+}
+
+/* **************************************************************** */
+/*								    */
+/*			Changing Case				    */
+/*								    */
+/* **************************************************************** */
+
+/* The three kinds of things that we know how to do. */
+#define UpCase 1
+#define DownCase 2
+#define CapCase 3
+
+static int rl_change_case ();
+
+/* Uppercase the word at point. */
+int
+rl_upcase_word (count, key)
+     int count, key;
+{
+  return (rl_change_case (count, UpCase));
+}
+
+/* Lowercase the word at point. */
+int
+rl_downcase_word (count, key)
+     int count, key;
+{
+  return (rl_change_case (count, DownCase));
+}
+
+/* Upcase the first letter, downcase the rest. */
+int
+rl_capitalize_word (count, key)
+     int count, key;
+{
+ return (rl_change_case (count, CapCase));
+}
+
+/* The meaty function.
+   Change the case of COUNT words, performing OP on them.
+   OP is one of UpCase, DownCase, or CapCase.
+   If a negative argument is given, leave point where it started,
+   otherwise, leave it where it moves to. */
+static int
+rl_change_case (count, op)
+     int count, op;
+{
+  register int start, end;
+  int inword, c;
+
+  start = rl_point;
+  rl_forward_word (count, 0);
+  end = rl_point;
+
+  if (count < 0)
+    SWAP (start, end);
+
+  /* We are going to modify some text, so let's prepare to undo it. */
+  rl_modifying (start, end);
+
+  for (inword = 0; start < end; start++)
+    {
+      c = the_line[start];
+      switch (op)
+	{
+	case UpCase:
+	  the_line[start] = _rl_to_upper (c);
+	  break;
+
+	case DownCase:
+	  the_line[start] = _rl_to_lower (c);
+	  break;
+
+	case CapCase:
+	  the_line[start] = (inword == 0) ? _rl_to_upper (c) : _rl_to_lower (c);
+	  inword = alphabetic (the_line[start]);
+	  break;
+
+	default:
+	  ding ();
+	  return -1;
+	}
+    }
+  rl_point = end;
+  return 0;
+}
+
+/* **************************************************************** */
+/*								    */
+/*			Transposition				    */
+/*								    */
+/* **************************************************************** */
+
+/* Transpose the words at point. */
+int
+rl_transpose_words (count, key)
+     int count, key;
+{
+  char *word1, *word2;
+  int w1_beg, w1_end, w2_beg, w2_end;
+  int orig_point = rl_point;
+
+  if (!count)
+    return 0;
+
+  /* Find the two words. */
+  rl_forward_word (count, key);
+  w2_end = rl_point;
+  rl_backward_word (1, key);
+  w2_beg = rl_point;
+  rl_backward_word (count, key);
+  w1_beg = rl_point;
+  rl_forward_word (1, key);
+  w1_end = rl_point;
+
+  /* Do some check to make sure that there really are two words. */
+  if ((w1_beg == w2_beg) || (w2_beg < w1_end))
+    {
+      ding ();
+      rl_point = orig_point;
+      return -1;
+    }
+
+  /* Get the text of the words. */
+  word1 = rl_copy_text (w1_beg, w1_end);
+  word2 = rl_copy_text (w2_beg, w2_end);
+
+  /* We are about to do many insertions and deletions.  Remember them
+     as one operation. */
+  rl_begin_undo_group ();
+
+  /* Do the stuff at word2 first, so that we don't have to worry
+     about word1 moving. */
+  rl_point = w2_beg;
+  rl_delete_text (w2_beg, w2_end);
+  rl_insert_text (word1);
+
+  rl_point = w1_beg;
+  rl_delete_text (w1_beg, w1_end);
+  rl_insert_text (word2);
+
+  /* This is exactly correct since the text before this point has not
+     changed in length. */
+  rl_point = w2_end;
+
+  /* I think that does it. */
+  rl_end_undo_group ();
+  free (word1);
+  free (word2);
+
+  return 0;
+}
+
+/* Transpose the characters at point.  If point is at the end of the line,
+   then transpose the characters before point. */
+int
+rl_transpose_chars (count, key)
+     int count, key;
+{
+  char dummy[2];
+
+  if (!count)
+    return 0;
+
+  if (!rl_point || rl_end < 2)
+    {
+      ding ();
+      return -1;
+    }
+
+  rl_begin_undo_group ();
+
+  if (rl_point == rl_end)
+    {
+      --rl_point;
+      count = 1;
+    }
+  rl_point--;
+
+  dummy[0] = the_line[rl_point];
+  dummy[1] = '\0';
+
+  rl_delete_text (rl_point, rl_point + 1);
+
+  rl_point += count;
+  _rl_fix_point (0);
+  rl_insert_text (dummy);
+
+  rl_end_undo_group ();
+  return 0;
+}
+
+/* **************************************************************** */
+/*								    */
+/*			Character Searching			    */
+/*								    */
+/* **************************************************************** */
+
+int
+_rl_char_search_internal (count, dir, schar)
+     int count, dir, schar;
+{
+  int pos, inc;
+
+  pos = rl_point;
+  inc = (dir < 0) ? -1 : 1;
+  while (count)
+    {
+      if ((dir < 0 && pos <= 0) || (dir > 0 && pos >= rl_end))
+	{
+	  ding ();
+	  return -1;
+	}
+
+      pos += inc;
+      do
+	{
+	  if (rl_line_buffer[pos] == schar)
+	    {
+	      count--;
+	      if (dir < 0)
+	        rl_point = (dir == BTO) ? pos + 1 : pos;
+	      else
+		rl_point = (dir == FTO) ? pos - 1 : pos;
+	      break;
+	    }
+	}
+      while ((dir < 0) ? pos-- : ++pos < rl_end);
+    }
+  return (0);
+}
+
+/* Search COUNT times for a character read from the current input stream.
+   FDIR is the direction to search if COUNT is non-negative; otherwise
+   the search goes in BDIR. */
+static int
+_rl_char_search (count, fdir, bdir)
+     int count, fdir, bdir;
+{
+  int c;
+
+  c = rl_read_key ();
+  if (count < 0)
+    return (_rl_char_search_internal (-count, bdir, c));
+  else
+    return (_rl_char_search_internal (count, fdir, c));
+}
+
+int
+rl_char_search (count, key)
+     int count, key;
+{
+  return (_rl_char_search (count, FFIND, BFIND));
+}
+
+int
+rl_backward_char_search (count, key)
+     int count, key;
+{
+  return (_rl_char_search (count, BFIND, FFIND));
+}
+
+/* **************************************************************** */
+/*								    */
+/*			History Utilities			    */
+/*								    */
+/* **************************************************************** */
+
+/* We already have a history library, and that is what we use to control
+   the history features of readline.  This is our local interface to
+   the history mechanism. */
+
+/* While we are editing the history, this is the saved
+   version of the original line. */
+HIST_ENTRY *saved_line_for_history = (HIST_ENTRY *)NULL;
+
+/* Set the history pointer back to the last entry in the history. */
+static void
+start_using_history ()
+{
+  using_history ();
+  if (saved_line_for_history)
+    _rl_free_history_entry (saved_line_for_history);
+
+  saved_line_for_history = (HIST_ENTRY *)NULL;
+}
+
+/* Free the contents (and containing structure) of a HIST_ENTRY. */
+void
+_rl_free_history_entry (entry)
+     HIST_ENTRY *entry;
+{
+  if (entry == 0)
+    return;
+  if (entry->line)
+    free (entry->line);
+  free (entry);
+}
+
+/* Perhaps put back the current line if it has changed. */
+int
+maybe_replace_line ()
+{
+  HIST_ENTRY *temp;
+
+  temp = current_history ();
+  /* If the current line has changed, save the changes. */
+  if (temp && ((UNDO_LIST *)(temp->data) != rl_undo_list))
+    {
+      temp = replace_history_entry (where_history (), the_line, rl_undo_list);
+      free (temp->line);
+      free (temp);
+    }
+  return 0;
+}
+
+/* Put back the saved_line_for_history if there is one. */
+int
+maybe_unsave_line ()
+{
+  int line_len;
+
+  if (saved_line_for_history)
+    {
+      line_len = strlen (saved_line_for_history->line);
+
+      if (line_len >= rl_line_buffer_len)
+	rl_extend_line_buffer (line_len);
+
+      strcpy (the_line, saved_line_for_history->line);
+      rl_undo_list = (UNDO_LIST *)saved_line_for_history->data;
+      _rl_free_history_entry (saved_line_for_history);
+      saved_line_for_history = (HIST_ENTRY *)NULL;
+      rl_end = rl_point = strlen (the_line);
+    }
+  else
+    ding ();
+  return 0;
+}
+
+/* Save the current line in saved_line_for_history. */
+int
+maybe_save_line ()
+{
+  if (saved_line_for_history == 0)
+    {
+      saved_line_for_history = (HIST_ENTRY *)xmalloc (sizeof (HIST_ENTRY));
+      saved_line_for_history->line = savestring (the_line);
+      saved_line_for_history->data = (char *)rl_undo_list;
+    }
+  return 0;
+}
+
+/* **************************************************************** */
+/*								    */
+/*			History Commands			    */
+/*								    */
+/* **************************************************************** */
+
+/* Meta-< goes to the start of the history. */
+int
+rl_beginning_of_history (count, key)
+     int count, key;
+{
+  return (rl_get_previous_history (1 + where_history (), key));
+}
+
+/* Meta-> goes to the end of the history.  (The current line). */
+int
+rl_end_of_history (count, key)
+     int count, key;
+{
+  maybe_replace_line ();
+  using_history ();
+  maybe_unsave_line ();
+  return 0;
+}
+
+/* Move down to the next history line. */
+int
+rl_get_next_history (count, key)
+     int count, key;
+{
+  HIST_ENTRY *temp;
+  int line_len;
+
+  if (count < 0)
+    return (rl_get_previous_history (-count, key));
+
+  if (count == 0)
+    return 0;
+
+  maybe_replace_line ();
+
+  temp = (HIST_ENTRY *)NULL;
+  while (count)
+    {
+      temp = next_history ();
+      if (!temp)
+	break;
+      --count;
+    }
+
+  if (temp == 0)
+    maybe_unsave_line ();
+  else
+    {
+      line_len = strlen (temp->line);
+
+      if (line_len >= rl_line_buffer_len)
+	rl_extend_line_buffer (line_len);
+
+      strcpy (the_line, temp->line);
+      rl_undo_list = (UNDO_LIST *)temp->data;
+      rl_end = rl_point = strlen (the_line);
+#if defined (VI_MODE)
+      if (rl_editing_mode == vi_mode)
+	rl_point = 0;
+#endif /* VI_MODE */
+    }
+  return 0;
+}
+
+/* Get the previous item out of our interactive history, making it the current
+   line.  If there is no previous history, just ding. */
+int
+rl_get_previous_history (count, key)
+     int count, key;
+{
+  HIST_ENTRY *old_temp, *temp;
+  int line_len;
+
+  if (count < 0)
+    return (rl_get_next_history (-count, key));
+
+  if (count == 0)
+    return 0;
+
+  /* If we don't have a line saved, then save this one. */
+  maybe_save_line ();
+
+  /* If the current line has changed, save the changes. */
+  maybe_replace_line ();
+
+  temp = old_temp = (HIST_ENTRY *)NULL;
+  while (count)
+    {
+      temp = previous_history ();
+      if (temp == 0)
+	break;
+
+      old_temp = temp;
+      --count;
+    }
+
+  /* If there was a large argument, and we moved back to the start of the
+     history, that is not an error.  So use the last value found. */
+  if (!temp && old_temp)
+    temp = old_temp;
+
+  if (temp == 0)
+    ding ();
+  else
+    {
+      line_len = strlen (temp->line);
+
+      if (line_len >= rl_line_buffer_len)
+	rl_extend_line_buffer (line_len);
+
+      strcpy (the_line, temp->line);
+      rl_undo_list = (UNDO_LIST *)temp->data;
+      rl_end = rl_point = line_len;
+
+#if defined (VI_MODE)
+      if (rl_editing_mode == vi_mode)
+	rl_point = 0;
+#endif /* VI_MODE */
+    }
+  return 0;
+}
+
+/* **************************************************************** */
+/*								    */
+/*		   The Mark and the Region.			    */
+/*								    */
+/* **************************************************************** */
+
+/* Set the mark at POSITION. */
+int
+_rl_set_mark_at_pos (position)
+     int position;
+{
+  if (position > rl_end)
+    return -1;
+
+  rl_mark = position;
+  return 0;
+}
+
+/* A bindable command to set the mark. */
+int
+rl_set_mark (count, key)
+     int count, key;
+{
+  return (_rl_set_mark_at_pos (rl_explicit_arg ? count : rl_point));
+}
+
+/* Exchange the position of mark and point. */
+int
+rl_exchange_point_and_mark (count, key)
+     int count, key;
+{
+  if (rl_mark > rl_end)
+    rl_mark = -1;
+
+  if (rl_mark == -1)
+    {
+      ding ();
+      return -1;
+    }
+  else
+    SWAP (rl_point, rl_mark);
+
+  return 0;
+}
+
+/* **************************************************************** */
+/*								    */
+/*			    Editing Modes			    */
+/*								    */
+/* **************************************************************** */
+/* How to toggle back and forth between editing modes. */
+int
+rl_vi_editing_mode (count, key)
+     int count, key;
+{
+#if defined (VI_MODE)
+  rl_editing_mode = vi_mode;
+  rl_vi_insertion_mode (1, key);
+#endif /* VI_MODE */
+  return 0;
+}
+
+int
+rl_emacs_editing_mode (count, key)
+     int count, key;
+{
+  rl_editing_mode = emacs_mode;
+  _rl_keymap = emacs_standard_keymap;
+  return 0;
+}
diff --git a/readline/readline.h b/readline/readline.h
new file mode 100644
index 00000000000..280ec32f13f
--- /dev/null
+++ b/readline/readline.h
@@ -0,0 +1,416 @@
+/* Readline.h -- the names of functions callable from within readline. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (_READLINE_H_)
+#define _READLINE_H_
+
+#if defined (READLINE_LIBRARY)
+#  include "keymaps.h"
+#  include "tilde.h"
+#else
+#  include <readline/keymaps.h>
+#  include <readline/tilde.h>
+#endif
+
+/* Readline data structures. */
+
+/* Maintaining the state of undo.  We remember individual deletes and inserts
+   on a chain of things to do. */
+
+/* The actions that undo knows how to undo.  Notice that UNDO_DELETE means
+   to insert some text, and UNDO_INSERT means to delete some text.   I.e.,
+   the code tells undo what to undo, not how to undo it. */
+enum undo_code { UNDO_DELETE, UNDO_INSERT, UNDO_BEGIN, UNDO_END };
+
+/* What an element of THE_UNDO_LIST looks like. */
+typedef struct undo_list {
+  struct undo_list *next;
+  int start, end;		/* Where the change took place. */
+  char *text;			/* The text to insert, if undoing a delete. */
+  enum undo_code what;		/* Delete, Insert, Begin, End. */
+} UNDO_LIST;
+
+/* The current undo list for RL_LINE_BUFFER. */
+extern UNDO_LIST *rl_undo_list;
+
+/* The data structure for mapping textual names to code addresses. */
+typedef struct _funmap {
+  char *name;
+  Function *function;
+} FUNMAP;
+
+extern FUNMAP **funmap;
+
+/* Functions available to bind to key sequences. */
+extern int
+  rl_tilde_expand (), rl_set_mark (), rl_exchange_point_and_mark (),
+  rl_beg_of_line (), rl_backward (), rl_delete (), rl_end_of_line (),
+  rl_forward (), ding (), rl_newline (), rl_kill_line (),
+  rl_copy_region_to_kill (), rl_kill_region (), rl_char_search (),
+  rl_clear_screen (), rl_get_next_history (), rl_get_previous_history (),
+  rl_quoted_insert (), rl_reverse_search_history (), rl_transpose_chars (),
+  rl_unix_line_discard (), rl_unix_word_rubout (),
+  rl_yank (), rl_rubout (), rl_backward_word (), rl_kill_word (),
+  rl_forward_word (), rl_tab_insert (), rl_yank_pop (), rl_yank_nth_arg (),
+  rl_backward_kill_word (), rl_backward_kill_line (), rl_transpose_words (),
+  rl_complete (), rl_possible_completions (), rl_insert_completions (),
+  rl_menu_complete (),
+  rl_do_lowercase_version (), rl_kill_full_line (),
+  rl_digit_argument (), rl_universal_argument (), rl_abort (),
+  rl_undo_command (), rl_revert_line (), rl_beginning_of_history (),
+  rl_end_of_history (), rl_forward_search_history (), rl_insert (),
+  rl_upcase_word (), rl_downcase_word (), rl_capitalize_word (),
+  rl_restart_output (), rl_re_read_init_file (),
+  rl_dump_functions (), rl_dump_variables (), rl_dump_macros (),
+  rl_delete_horizontal_space (), rl_history_search_forward (),
+  rl_history_search_backward (), rl_tty_status (), rl_yank_last_arg (),
+  rl_insert_comment (), rl_backward_char_search (),
+  rl_copy_forward_word (), rl_copy_backward_word ();
+
+/* Not available unless readline is compiled -DPAREN_MATCHING. */
+extern int rl_insert_close ();
+
+/* Not available unless READLINE_CALLBACKS is defined. */
+extern void rl_callback_handler_install ();
+extern void rl_callback_read_char ();
+extern void rl_callback_handler_remove ();
+
+/* Not available unless __CYGWIN32__ is defined. */
+#ifdef __CYGWIN32__
+extern int rl_paste_from_clipboard ();
+#endif
+
+/* These are *both* defined even when VI_MODE is not. */
+extern int rl_vi_editing_mode (), rl_emacs_editing_mode ();
+
+/* Non incremental history searching. */
+extern int rl_noninc_forward_search ();
+extern int rl_noninc_reverse_search ();
+extern int rl_noninc_forward_search_again ();
+extern int rl_noninc_reverse_search_again ();
+
+/* Things for vi mode. Not available unless readline is compiled -DVI_MODE. */
+extern int rl_vi_check ();
+extern int
+  rl_vi_undo (), rl_vi_redo (), rl_vi_tilde_expand (),
+  rl_vi_movement_mode (), rl_vi_insertion_mode (), rl_vi_arg_digit (),
+  rl_vi_prev_word (), rl_vi_next_word (), rl_vi_char_search (),
+  rl_vi_eof_maybe (), rl_vi_append_mode (), rl_vi_put (),
+  rl_vi_append_eol (), rl_vi_insert_beg (), rl_vi_delete (),
+  rl_vi_first_print (), rl_vi_fword (), rl_vi_fWord (), rl_vi_bword (),
+  rl_vi_bWord (), rl_vi_eword (), rl_vi_eWord (), rl_vi_end_word (),
+  rl_vi_change_case (), rl_vi_match (), rl_vi_bracktype (),
+  rl_vi_change_char (), rl_vi_yank_arg (), rl_vi_search (),
+  rl_vi_search_again (),  rl_vi_subst (), rl_vi_overstrike (),
+  rl_vi_overstrike_delete (), rl_vi_replace(), rl_vi_column (),
+  rl_vi_delete_to (), rl_vi_change_to (), rl_vi_yank_to (),
+  rl_vi_complete (), rl_vi_fetch_history (), rl_vi_set_mark (),
+  rl_vi_goto_mark (), rl_vi_back_to_indent ();
+
+/* Keyboard macro commands. */
+extern int rl_start_kbd_macro (), rl_end_kbd_macro ();
+extern int rl_call_last_kbd_macro ();
+extern void rl_push_macro_input ();
+
+extern int rl_arrow_keys(), rl_refresh_line ();
+
+/* **************************************************************** */
+/*								    */
+/*			Well Published Functions		    */
+/*								    */
+/* **************************************************************** */
+
+/* Readline functions. */
+/* Read a line of input.  Prompt with PROMPT.  A NULL PROMPT means none. */
+extern char *readline ();
+
+/* These functions are from bind.c. */
+/* rl_add_defun (char *name, Function *function, int key)
+   Add NAME to the list of named functions.  Make FUNCTION
+   be the function that gets called.
+   If KEY is not -1, then bind it. */
+extern int rl_add_defun ();
+
+extern Keymap rl_make_bare_keymap ();
+extern Keymap rl_copy_keymap ();
+extern Keymap rl_make_keymap ();
+extern void rl_discard_keymap ();
+extern Keymap rl_get_keymap (), rl_get_keymap_by_name ();
+extern void rl_set_keymap ();
+extern char *rl_get_keymap_name ();
+
+extern int rl_bind_key (), rl_bind_key_in_map ();
+extern int rl_unbind_key (), rl_unbind_key_in_map ();
+extern int rl_unbind_function_in_map (), rl_unbind_command_in_map ();
+extern int rl_set_key ();
+extern int rl_generic_bind ();
+extern int rl_parse_and_bind ();
+/* Backwards compatibility, use rl_generic_bind instead. */
+extern int rl_macro_bind (), rl_variable_bind ();
+
+extern int rl_read_init_file ();
+
+extern Function *rl_named_function (), *rl_function_of_keyseq ();
+extern char **rl_invoking_keyseqs (), **rl_invoking_keyseqs_in_map ();
+extern void rl_function_dumper ();
+extern void rl_variable_dumper ();
+extern void rl_macro_dumper ();
+extern void rl_list_funmap_names ();
+
+/* Undocumented in the texinfo manual; not really useful to programs. */
+extern int rl_translate_keyseq ();
+extern void rl_initialize_funmap ();
+
+/* Functions for undoing. */
+extern int rl_begin_undo_group (), rl_end_undo_group ();
+extern void rl_add_undo (), free_undo_list ();
+extern int rl_do_undo ();
+extern int rl_modifying ();
+
+/* Functions for redisplay. */
+extern void rl_redisplay ();
+extern int rl_forced_update_display ();
+extern int rl_clear_message ();
+extern int rl_reset_line_state ();
+extern int rl_on_new_line ();
+
+#if defined (__STDC__) && defined (USE_VARARGS) && defined (PREFER_STDARG)
+extern int rl_message (const char *, ...);
+#else
+extern int rl_message ();
+#endif
+
+/* Undocumented in texinfo manual. */
+extern int rl_character_len ();
+extern int rl_show_char ();
+extern int crlf ();
+
+/* Modifying text. */
+extern int rl_insert_text (), rl_delete_text ();
+extern int rl_kill_text ();
+extern char *rl_copy_text ();
+
+/* `Public' utility functions. */
+extern int rl_reset_terminal ();
+extern int rl_stuff_char ();
+extern int rl_read_key (), rl_getc ();
+
+extern int rl_initialize ();
+
+/* Undocumented. */
+extern int rl_expand_prompt ();
+extern int rl_set_signals (), rl_clear_signals ();
+extern int maybe_save_line (), maybe_unsave_line (), maybe_replace_line ();
+
+/* Completion functions. */
+/* These functions are from complete.c. */
+extern int rl_complete_internal ();
+
+/* Return an array of strings which are the result of repeatadly calling
+   FUNC with TEXT. */
+extern char **completion_matches ();
+extern char *username_completion_function ();
+extern char *filename_completion_function ();
+
+/* **************************************************************** */
+/*								    */
+/*			Well Published Variables		    */
+/*								    */
+/* **************************************************************** */
+
+/* The version of this incarnation of the readline library. */
+extern char *rl_library_version;
+
+/* The name of the calling program.  You should initialize this to
+   whatever was in argv[0].  It is used when parsing conditionals. */
+extern char *rl_readline_name;
+
+/* The prompt readline uses.  This is set from the argument to
+   readline (), and should not be assigned to directly. */
+extern char *rl_prompt;
+
+/* The line buffer that is in use. */
+extern char *rl_line_buffer;
+
+/* The location of point, and end. */
+extern int rl_point, rl_end;
+
+extern int rl_mark;
+
+extern int rl_done;
+
+extern int rl_pending_input;
+
+/* Non-zero if we called this function from _rl_dispatch().  It's present
+   so functions can find out whether they were called from a key binding
+   or directly from an application. */
+extern int rl_dispatching;
+
+/* The name of the terminal to use. */
+extern char *rl_terminal_name;
+
+/* The input and output streams. */
+extern FILE *rl_instream, *rl_outstream;
+
+/* If non-zero, then this is the address of a function to call just
+   before readline_internal () prints the first prompt. */
+extern Function *rl_startup_hook;
+
+/* The address of a function to call periodically while Readline is
+   awaiting character input, or NULL, for no event handling. */
+extern Function *rl_event_hook;
+
+extern Function *rl_getc_function;
+extern VFunction *rl_redisplay_function;
+extern VFunction *rl_prep_term_function;
+extern VFunction *rl_deprep_term_function;
+
+/* Dispatch variables. */
+extern Keymap rl_executing_keymap;
+extern Keymap rl_binding_keymap;
+
+/* Completion variables. */
+/* Pointer to the generator function for completion_matches ().
+   NULL means to use filename_entry_function (), the default filename
+   completer. */
+extern Function *rl_completion_entry_function;
+
+/* If rl_ignore_some_completions_function is non-NULL it is the address
+   of a function to call after all of the possible matches have been
+   generated, but before the actual completion is done to the input line.
+   The function is called with one argument; a NULL terminated array
+   of (char *).  If your function removes any of the elements, they
+   must be free()'ed. */
+extern Function *rl_ignore_some_completions_function;
+
+/* Pointer to alternative function to create matches.
+   Function is called with TEXT, START, and END.
+   START and END are indices in RL_LINE_BUFFER saying what the boundaries
+   of TEXT are.
+   If this function exists and returns NULL then call the value of
+   rl_completion_entry_function to try to match, otherwise use the
+   array of strings returned. */
+extern CPPFunction *rl_attempted_completion_function;
+
+/* The basic list of characters that signal a break between words for the
+   completer routine.  The initial contents of this variable is what
+   breaks words in the shell, i.e. "n\"\\'`@$>". */
+extern char *rl_basic_word_break_characters;
+
+/* The list of characters that signal a break between words for
+   rl_complete_internal.  The default list is the contents of
+   rl_basic_word_break_characters.  */
+extern char *rl_completer_word_break_characters;
+
+/* List of characters which can be used to quote a substring of the line.
+   Completion occurs on the entire substring, and within the substring   
+   rl_completer_word_break_characters are treated as any other character,
+   unless they also appear within this list. */
+extern char *rl_completer_quote_characters;
+
+/* List of quote characters which cause a word break. */
+extern char *rl_basic_quote_characters;
+
+/* List of characters that need to be quoted in filenames by the completer. */
+extern char *rl_filename_quote_characters;
+
+/* List of characters that are word break characters, but should be left
+   in TEXT when it is passed to the completion function.  The shell uses
+   this to help determine what kind of completing to do. */
+extern char *rl_special_prefixes;
+
+/* If non-zero, then this is the address of a function to call when
+   completing on a directory name.  The function is called with
+   the address of a string (the current directory name) as an arg. */
+extern Function *rl_directory_completion_hook;
+
+/* Backwards compatibility with previous versions of readline. */
+#define rl_symbolic_link_hook rl_directory_completion_hook
+
+/* Non-zero means that the results of the matches are to be treated
+   as filenames.  This is ALWAYS zero on entry, and can only be changed
+   within a completion entry finder function. */
+extern int rl_filename_completion_desired;
+
+/* Non-zero means that the results of the matches are to be quoted using
+   double quotes (or an application-specific quoting mechanism) if the
+   filename contains any characters in rl_word_break_chars.  This is
+   ALWAYS non-zero on entry, and can only be changed within a completion
+   entry finder function. */
+extern int rl_filename_quoting_desired;
+
+/* Set to a function to quote a filename in an application-specific fashion.
+   Called with the text to quote, the type of match found (single or multiple)
+   and a pointer to the quoting character to be used, which the function can
+   reset if desired. */
+extern CPFunction *rl_filename_quoting_function;
+
+/* Function to call to remove quoting characters from a filename.  Called
+   before completion is attempted, so the embedded quotes do not interfere
+   with matching names in the file system. */
+extern CPFunction *rl_filename_dequoting_function;
+
+/* Function to call to decide whether or not a word break character is
+   quoted.  If a character is quoted, it does not break words for the
+   completer. */
+extern Function *rl_char_is_quoted_p;
+
+/* Non-zero means to suppress normal filename completion after the
+   user-specified completion function has been called. */
+extern int rl_attempted_completion_over;
+
+/* Set to a character describing the type of completion being attempted by
+   rl_complete_internal; available for use by application completion
+   functions. */
+extern int rl_completion_type;
+
+/* Character appended to completed words when at the end of the line.  The
+   default is a space.  Nothing is added if this is '\0'. */
+extern int rl_completion_append_character;
+
+/* Up to this many items will be displayed in response to a
+   possible-completions call.  After that, we ask the user if she
+   is sure she wants to see them all.  The default value is 100. */
+extern int rl_completion_query_items;
+
+/* If non-zero, then disallow duplicates in the matches. */
+extern int rl_ignore_completion_duplicates;
+
+/* If this is non-zero, completion is (temporarily) inhibited, and the
+   completion character will be inserted as any other. */
+extern int rl_inhibit_completion;
+   
+/* Definitions available for use by readline clients. */
+#define RL_PROMPT_START_IGNORE	'\001'
+#define RL_PROMPT_END_IGNORE	'\002'
+
+/* Possible values for do_replace argument to rl_filename_quoting_function,
+   called by rl_complete_internal. */
+#define NO_MATCH        0
+#define SINGLE_MATCH    1
+#define MULT_MATCH      2
+
+#if !defined (savestring)
+extern char *savestring ();	/* XXX backwards compatibility */
+#endif
+
+#endif /* _READLINE_H_ */
diff --git a/readline/rlconf.h b/readline/rlconf.h
new file mode 100644
index 00000000000..8f07db155df
--- /dev/null
+++ b/readline/rlconf.h
@@ -0,0 +1,63 @@
+/* rlconf.h -- readline configuration definitions */
+
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+
+   This file contains the Readline Library (the Library), a set of
+   routines for providing Emacs style line input to programs that ask
+   for it.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (_RLCONF_H_)
+#define _RLCONF_H_
+
+/* Define this if you want the vi-mode editing available. */
+#define VI_MODE
+
+/* Define this to get an indication of file type when listing completions. */
+#define VISIBLE_STATS
+
+/* If defined, readline shows opening parens and braces when closing
+   paren or brace entered. */
+/* #define PAREN_MATCHING */
+
+/* This definition is needed by readline.c, rltty.c, and signals.c. */
+/* If on, then readline handles signals in a way that doesn't screw. */
+#define HANDLE_SIGNALS
+
+/* Ugly but working hack for binding prefix meta. */
+#define PREFIX_META_HACK
+
+/* The final, last-ditch effort file name for an init file. */
+#define DEFAULT_INPUTRC "~/.inputrc"
+
+/* If defined, expand tabs to spaces. */
+#define DISPLAY_TABS
+
+/* If defined, use the terminal escape sequence to move the cursor forward
+   over a character when updating the line rather than rewriting it. */
+/* #define HACK_TERMCAP_MOTION */
+
+/* The string inserted by the `insert comment' command. */
+#define RL_COMMENT_BEGIN_DEFAULT "#"
+
+/* Define this if you want code that allows readline to be used in an
+   X `callback' style. */
+#if !defined (SHELL)
+#  define READLINE_CALLBACKS
+#endif
+
+#endif /* _RLCONF_H_ */
diff --git a/readline/rldefs.h b/readline/rldefs.h
new file mode 100644
index 00000000000..d4aced43e2a
--- /dev/null
+++ b/readline/rldefs.h
@@ -0,0 +1,135 @@
+/* rldefs.h -- an attempt to isolate some of the system-specific defines
+   for readline.  This should be included after any files that define
+   system-specific constants like _POSIX_VERSION or USG. */
+
+/* Copyright (C) 1987,1989 Free Software Foundation, Inc.
+
+   This file contains the Readline Library (the Library), a set of
+   routines for providing Emacs style line input to programs that ask
+   for it.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (_RLDEFS_H_)
+#define _RLDEFS_H_
+
+#if defined (HAVE_CONFIG_H)
+#  include "config.h"
+#endif
+
+#if defined (_POSIX_VERSION) && !defined (TERMIOS_MISSING)
+#  define TERMIOS_TTY_DRIVER
+#else
+#  if defined (HAVE_TERMIO_H)
+#    define TERMIO_TTY_DRIVER
+#  else
+#    define NEW_TTY_DRIVER
+#  endif
+#endif
+
+/* Posix macro to check file in statbuf for directory-ness.
+   This requires that <sys/stat.h> be included before this test. */
+#if defined (S_IFDIR) && !defined (S_ISDIR)
+#  define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
+#endif
+
+/* Decide which flavor of the header file describing the C library
+   string functions to include and include it. */
+
+#if defined (HAVE_STRING_H)
+#  include <string.h>
+#else /* !HAVE_STRING_H */
+#  include <strings.h>
+#endif /* !HAVE_STRING_H */
+
+#if !defined (strchr) && !defined (__STDC__)
+extern char *strchr (), *strrchr ();
+#endif /* !strchr && !__STDC__ */
+
+#if defined (PREFER_STDARG)
+#  include <stdarg.h>
+#else
+#  if defined (PREFER_VARARGS)
+#    include <varargs.h>
+#  endif
+#endif
+
+#if defined (HAVE_STRCASECMP)
+#define _rl_stricmp strcasecmp
+#define _rl_strnicmp strncasecmp
+#else
+extern int _rl_stricmp (), _rl_strnicmp ();
+#endif
+
+#if !defined (emacs_mode)
+#  define no_mode -1
+#  define vi_mode 0
+#  define emacs_mode 1
+#endif
+
+/* If you cast map[key].function to type (Keymap) on a Cray,
+   the compiler takes the value of map[key].function and
+   divides it by 4 to convert between pointer types (pointers
+   to functions and pointers to structs are different sizes).
+   This is not what is wanted. */
+#if defined (CRAY)
+#  define FUNCTION_TO_KEYMAP(map, key)	(Keymap)((int)map[key].function)
+#  define KEYMAP_TO_FUNCTION(data)	(Function *)((int)(data))
+#else
+#  define FUNCTION_TO_KEYMAP(map, key)	(Keymap)(map[key].function)
+#  define KEYMAP_TO_FUNCTION(data)	(Function *)(data)
+#endif
+
+#ifndef savestring
+extern char *xmalloc ();
+#define savestring(x) strcpy (xmalloc (1 + strlen (x)), (x))
+#endif
+
+/* Possible values for _rl_bell_preference. */
+#define NO_BELL 0
+#define AUDIBLE_BELL 1
+#define VISIBLE_BELL 2
+
+/* Definitions used when searching the line for characters. */
+/* NOTE: it is necessary that opposite directions are inverses */
+#define	FTO	 1		/* forward to */
+#define BTO	-1		/* backward to */
+#define FFIND	 2		/* forward find */
+#define BFIND	-2		/* backward find */
+
+/* Possible values for the found_quote flags word used by the completion
+   functions.  It says what kind of (shell-like) quoting we found anywhere
+   in the line. */
+#define RL_QF_SINGLE_QUOTE	0x1
+#define RL_QF_DOUBLE_QUOTE	0x2
+#define RL_QF_BACKSLASH		0x4
+
+/* Default readline line buffer length. */
+#define DEFAULT_BUFFER_SIZE 256
+
+#if !defined (STREQ)
+#define STREQ(a, b)	(((a)[0] == (b)[0]) && (strcmp ((a), (b)) == 0))
+#define STREQN(a, b, n)	(((a)[0] == (b)[0]) && (strncmp ((a), (b), (n)) == 0))
+#endif
+
+#if !defined (FREE)
+#  define FREE(x)	if (x) free (x)
+#endif
+
+/* CONFIGURATION SECTION */
+#include "rlconf.h"
+
+#endif /* !_RLDEFS_H_ */
diff --git a/readline/rltty.c b/readline/rltty.c
new file mode 100644
index 00000000000..8312963abcb
--- /dev/null
+++ b/readline/rltty.c
@@ -0,0 +1,728 @@
+/* rltty.c -- functions to prepare and restore the terminal for readline's
+   use. */
+
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+#include <signal.h>
+#include <errno.h>
+#include <stdio.h>
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#include "rldefs.h"
+
+#if !defined (SHELL) && defined (GWINSZ_IN_SYS_IOCTL)
+#  include <sys/ioctl.h>
+#endif /* !SHELL && GWINSZ_IN_SYS_IOCTL */
+
+#include "rltty.h"
+#include "readline.h"
+
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+extern int readline_echoing_p;
+extern int _rl_eof_char;
+
+extern int _rl_enable_keypad, _rl_enable_meta;
+
+extern void _rl_control_keypad ();
+
+#if defined (__GO32__)
+#  include <pc.h>
+#  undef HANDLE_SIGNALS
+#endif /* __GO32__ */
+
+/* Indirect functions to allow apps control over terminal management. */
+extern void rl_prep_terminal (), rl_deprep_terminal ();
+
+VFunction *rl_prep_term_function = rl_prep_terminal;
+VFunction *rl_deprep_term_function = rl_deprep_terminal;
+
+/* **************************************************************** */
+/*								    */
+/*			   Signal Management			    */
+/*								    */
+/* **************************************************************** */
+
+#if defined (HAVE_POSIX_SIGNALS)
+static sigset_t sigint_set, sigint_oset;
+#else /* !HAVE_POSIX_SIGNALS */
+#  if defined (HAVE_BSD_SIGNALS)
+static int sigint_oldmask;
+#  endif /* HAVE_BSD_SIGNALS */
+#endif /* !HAVE_POSIX_SIGNALS */
+
+static int sigint_blocked;
+
+/* Cause SIGINT to not be delivered until the corresponding call to
+   release_sigint(). */
+static void
+block_sigint ()
+{
+  if (sigint_blocked)
+    return;
+
+#if defined (HAVE_POSIX_SIGNALS)
+  sigemptyset (&sigint_set);
+  sigemptyset (&sigint_oset);
+  sigaddset (&sigint_set, SIGINT);
+  sigprocmask (SIG_BLOCK, &sigint_set, &sigint_oset);
+#else /* !HAVE_POSIX_SIGNALS */
+#  if defined (HAVE_BSD_SIGNALS)
+  sigint_oldmask = sigblock (sigmask (SIGINT));
+#  else /* !HAVE_BSD_SIGNALS */
+#    if defined (HAVE_USG_SIGHOLD)
+  sighold (SIGINT);
+#    endif /* HAVE_USG_SIGHOLD */
+#  endif /* !HAVE_BSD_SIGNALS */
+#endif /* !HAVE_POSIX_SIGNALS */
+  sigint_blocked = 1;
+}
+
+/* Allow SIGINT to be delivered. */
+static void
+release_sigint ()
+{
+  if (!sigint_blocked)
+    return;
+
+#if defined (HAVE_POSIX_SIGNALS)
+  sigprocmask (SIG_SETMASK, &sigint_oset, (sigset_t *)NULL);
+#else
+#  if defined (HAVE_BSD_SIGNALS)
+  sigsetmask (sigint_oldmask);
+#  else /* !HAVE_BSD_SIGNALS */
+#    if defined (HAVE_USG_SIGHOLD)
+  sigrelse (SIGINT);
+#    endif /* HAVE_USG_SIGHOLD */
+#  endif /* !HAVE_BSD_SIGNALS */
+#endif /* !HAVE_POSIX_SIGNALS */
+
+  sigint_blocked = 0;
+}
+
+/* **************************************************************** */
+/*								    */
+/*		      Saving and Restoring the TTY	    	    */
+/*								    */
+/* **************************************************************** */
+
+/* Non-zero means that the terminal is in a prepped state. */
+static int terminal_prepped;
+
+/* If non-zero, means that this process has called tcflow(fd, TCOOFF)
+   and output is suspended. */
+#if defined (__ksr1__)
+static int ksrflow;
+#endif
+
+#if !defined (SHELL) && defined (TIOCGWINSZ)
+/* Dummy call to force a backgrounded readline to stop before it tries
+   to get the tty settings. */
+static void
+set_winsize (tty)
+     int tty;
+{
+  struct winsize w;
+
+  if (ioctl (tty, TIOCGWINSZ, &w) == 0)
+      (void) ioctl (tty, TIOCSWINSZ, &w);
+}
+#else /* SHELL || !TIOCGWINSZ */
+#  define set_winsize(tty)
+#endif /* SHELL || !TIOCGWINSZ */
+
+#if defined (NEW_TTY_DRIVER)
+
+/* Values for the `flags' field of a struct bsdtty.  This tells which
+   elements of the struct bsdtty have been fetched from the system and
+   are valid. */
+#define SGTTY_SET	0x01
+#define LFLAG_SET	0x02
+#define TCHARS_SET	0x04
+#define LTCHARS_SET	0x08
+
+struct bsdtty {
+  struct sgttyb sgttyb;	/* Basic BSD tty driver information. */
+  int lflag;		/* Local mode flags, like LPASS8. */
+#if defined (TIOCGETC)
+  struct tchars tchars;	/* Terminal special characters, including ^S and ^Q. */
+#endif
+#if defined (TIOCGLTC)
+  struct ltchars ltchars; /* 4.2 BSD editing characters */
+#endif
+  int flags;		/* Bitmap saying which parts of the struct are valid. */
+};
+
+#define TIOTYPE struct bsdtty
+
+static TIOTYPE otio;
+
+static int
+get_tty_settings (tty, tiop)
+     int tty;
+     TIOTYPE *tiop;
+{
+  set_winsize (tty);
+
+  tiop->flags = tiop->lflag = 0;
+
+  ioctl (tty, TIOCGETP, &(tiop->sgttyb));
+  tiop->flags |= SGTTY_SET;
+
+#if defined (TIOCLGET)
+  ioctl (tty, TIOCLGET, &(tiop->lflag));
+  tiop->flags |= LFLAG_SET;
+#endif
+
+#if defined (TIOCGETC)
+  ioctl (tty, TIOCGETC, &(tiop->tchars));
+  tiop->flags |= TCHARS_SET;
+#endif
+
+#if defined (TIOCGLTC)
+  ioctl (tty, TIOCGLTC, &(tiop->ltchars));
+  tiop->flags |= LTCHARS_SET;
+#endif
+
+  return 0;
+}
+
+static int
+set_tty_settings (tty, tiop)
+     int tty;
+     TIOTYPE *tiop;
+{
+  if (tiop->flags & SGTTY_SET)
+    {
+      ioctl (tty, TIOCSETN, &(tiop->sgttyb));
+      tiop->flags &= ~SGTTY_SET;
+    }
+  readline_echoing_p = 1;
+
+#if defined (TIOCLSET)
+  if (tiop->flags & LFLAG_SET)
+    {
+      ioctl (tty, TIOCLSET, &(tiop->lflag));
+      tiop->flags &= ~LFLAG_SET;
+    }
+#endif
+
+#if defined (TIOCSETC)
+  if (tiop->flags & TCHARS_SET)
+    {
+      ioctl (tty, TIOCSETC, &(tiop->tchars));
+      tiop->flags &= ~TCHARS_SET;
+    }
+#endif
+
+#if defined (TIOCSLTC)
+  if (tiop->flags & LTCHARS_SET)
+    {
+      ioctl (tty, TIOCSLTC, &(tiop->ltchars));
+      tiop->flags &= ~LTCHARS_SET;
+    }
+#endif
+
+  return 0;
+}
+
+static void
+prepare_terminal_settings (meta_flag, otio, tiop)
+     int meta_flag;
+     TIOTYPE otio, *tiop;
+{
+#if !defined (__GO32__)
+  readline_echoing_p = (otio.sgttyb.sg_flags & ECHO);
+
+  /* Copy the original settings to the structure we're going to use for
+     our settings. */
+  tiop->sgttyb = otio.sgttyb;
+  tiop->lflag = otio.lflag;
+#if defined (TIOCGETC)
+  tiop->tchars = otio.tchars;
+#endif
+#if defined (TIOCGLTC)
+  tiop->ltchars = otio.ltchars;
+#endif
+  tiop->flags = otio.flags;
+
+  /* First, the basic settings to put us into character-at-a-time, no-echo
+     input mode. */
+  tiop->sgttyb.sg_flags &= ~(ECHO | CRMOD);
+  tiop->sgttyb.sg_flags |= CBREAK;
+
+  /* If this terminal doesn't care how the 8th bit is used, then we can
+     use it for the meta-key.  If only one of even or odd parity is
+     specified, then the terminal is using parity, and we cannot. */
+#if !defined (ANYP)
+#  define ANYP (EVENP | ODDP)
+#endif
+  if (((otio.sgttyb.sg_flags & ANYP) == ANYP) ||
+      ((otio.sgttyb.sg_flags & ANYP) == 0))
+    {
+      tiop->sgttyb.sg_flags |= ANYP;
+
+      /* Hack on local mode flags if we can. */
+#if defined (TIOCLGET)
+#  if defined (LPASS8)
+      tiop->lflag |= LPASS8;
+#  endif /* LPASS8 */
+#endif /* TIOCLGET */
+    }
+
+#if defined (TIOCGETC)
+#  if defined (USE_XON_XOFF)
+  /* Get rid of terminal output start and stop characters. */
+  tiop->tchars.t_stopc = -1; /* C-s */
+  tiop->tchars.t_startc = -1; /* C-q */
+
+  /* If there is an XON character, bind it to restart the output. */
+  if (otio.tchars.t_startc != -1)
+    rl_bind_key (otio.tchars.t_startc, rl_restart_output);
+#  endif /* USE_XON_XOFF */
+
+  /* If there is an EOF char, bind _rl_eof_char to it. */
+  if (otio.tchars.t_eofc != -1)
+    _rl_eof_char = otio.tchars.t_eofc;
+
+#  if defined (NO_KILL_INTR)
+  /* Get rid of terminal-generated SIGQUIT and SIGINT. */
+  tiop->tchars.t_quitc = -1; /* C-\ */
+  tiop->tchars.t_intrc = -1; /* C-c */
+#  endif /* NO_KILL_INTR */
+#endif /* TIOCGETC */
+
+#if defined (TIOCGLTC)
+  /* Make the interrupt keys go away.  Just enough to make people happy. */
+  tiop->ltchars.t_dsuspc = -1;	/* C-y */
+  tiop->ltchars.t_lnextc = -1;	/* C-v */
+#endif /* TIOCGLTC */
+#endif /* !__GO32__ */
+}
+
+#else  /* !defined (NEW_TTY_DRIVER) */
+
+#if !defined (VMIN)
+#  define VMIN VEOF
+#endif
+
+#if !defined (VTIME)
+#  define VTIME VEOL
+#endif
+
+#if defined (TERMIOS_TTY_DRIVER)
+#  define TIOTYPE struct termios
+#  define DRAIN_OUTPUT(fd)	tcdrain (fd)
+#  define GETATTR(tty, tiop)	(tcgetattr (tty, tiop))
+#  ifdef M_UNIX
+#    define SETATTR(tty, tiop)	(tcsetattr (tty, TCSANOW, tiop))
+#  else
+#    define SETATTR(tty, tiop)	(tcsetattr (tty, TCSADRAIN, tiop))
+#  endif /* !M_UNIX */
+#else
+#  define TIOTYPE struct termio
+#  define DRAIN_OUTPUT(fd)
+#  define GETATTR(tty, tiop)	(ioctl (tty, TCGETA, tiop))
+#  define SETATTR(tty, tiop)	(ioctl (tty, TCSETA, tiop))
+#endif /* !TERMIOS_TTY_DRIVER */
+
+static TIOTYPE otio;
+
+#if defined (FLUSHO)
+#  define OUTPUT_BEING_FLUSHED(tp)  (tp->c_lflag & FLUSHO)
+#else
+#  define OUTPUT_BEING_FLUSHED(tp)  0
+#endif
+
+static void
+rltty_warning (msg)
+     char *msg;
+{
+  fprintf (stderr, "readline: warning: %s\n", msg);
+}
+
+#if defined (_AIX)
+void
+setopost(tp)
+TIOTYPE *tp;
+{
+  if ((tp->c_oflag & OPOST) == 0)
+    {
+      rltty_warning ("turning on OPOST for terminal\r");
+      tp->c_oflag |= OPOST|ONLCR;
+    }
+}
+#endif
+
+static int
+get_tty_settings (tty, tiop)
+     int tty;
+     TIOTYPE *tiop;
+{
+  int ioctl_ret;
+  set_winsize (tty);
+
+  while (1)
+    {
+      ioctl_ret = GETATTR (tty, tiop);
+      if (ioctl_ret < 0)
+	{
+	  if (errno != EINTR)
+	    return -1;
+	  else
+	    continue;
+	}
+      if (OUTPUT_BEING_FLUSHED (tiop))
+	{
+#if defined (FLUSHO) && defined (_AIX41)
+	  rltty_warning ("turning off output flushing");
+	  tiop->c_lflag &= ~FLUSHO;
+	  break;
+#else
+	  continue;
+#endif
+	}
+      break;
+    }
+
+#if defined (_AIX)
+  setopost(tiop);
+#endif
+
+  return 0;
+}
+
+static int
+set_tty_settings (tty, tiop)
+     int tty;
+     TIOTYPE *tiop;
+{
+  while (SETATTR (tty, tiop) < 0)
+    {
+      if (errno != EINTR)
+	return -1;
+      errno = 0;
+    }
+
+#if 0
+
+#if defined (TERMIOS_TTY_DRIVER)
+#  if defined (__ksr1__)
+  if (ksrflow)
+    {
+      ksrflow = 0;
+      tcflow (tty, TCOON);
+    }
+#  else /* !ksr1 */
+  tcflow (tty, TCOON);		/* Simulate a ^Q. */
+#  endif /* !ksr1 */
+#else
+  ioctl (tty, TCXONC, 1);	/* Simulate a ^Q. */
+#endif /* !TERMIOS_TTY_DRIVER */
+
+#endif
+
+  return 0;
+}
+
+static void
+prepare_terminal_settings (meta_flag, otio, tiop)
+     int meta_flag;
+     TIOTYPE otio, *tiop;
+{
+  readline_echoing_p = (otio.c_lflag & ECHO);
+
+  tiop->c_lflag &= ~(ICANON | ECHO);
+
+  if ((unsigned char) otio.c_cc[VEOF] != (unsigned char) _POSIX_VDISABLE)
+    _rl_eof_char = otio.c_cc[VEOF];
+
+#if defined (USE_XON_XOFF)
+#if defined (IXANY)
+  tiop->c_iflag &= ~(IXON | IXOFF | IXANY);
+#else
+  /* `strict' Posix systems do not define IXANY. */
+  tiop->c_iflag &= ~(IXON | IXOFF);
+#endif /* IXANY */
+#endif /* USE_XON_XOFF */
+
+  /* Only turn this off if we are using all 8 bits. */
+  if (((tiop->c_cflag & CSIZE) == CS8) || meta_flag)
+    tiop->c_iflag &= ~(ISTRIP | INPCK);
+
+  /* Make sure we differentiate between CR and NL on input. */
+  tiop->c_iflag &= ~(ICRNL | INLCR);
+
+#if !defined (HANDLE_SIGNALS)
+  tiop->c_lflag &= ~ISIG;
+#else
+  tiop->c_lflag |= ISIG;
+#endif
+
+  tiop->c_cc[VMIN] = 1;
+  tiop->c_cc[VTIME] = 0;
+
+#if defined (FLUSHO)
+  if (OUTPUT_BEING_FLUSHED (tiop))
+    {
+      tiop->c_lflag &= ~FLUSHO;
+      otio.c_lflag &= ~FLUSHO;
+    }
+#endif
+
+  /* Turn off characters that we need on Posix systems with job control,
+     just to be sure.  This includes ^Y and ^V.  This should not really
+     be necessary.  */
+#if defined (TERMIOS_TTY_DRIVER) && defined (_POSIX_VDISABLE)
+
+#if defined (VLNEXT)
+  tiop->c_cc[VLNEXT] = _POSIX_VDISABLE;
+#endif
+
+#if defined (VDSUSP)
+  tiop->c_cc[VDSUSP] = _POSIX_VDISABLE;
+#endif
+
+#endif /* TERMIOS_TTY_DRIVER && _POSIX_VDISABLE */
+}
+#endif  /* NEW_TTY_DRIVER */
+
+/* Put the terminal in CBREAK mode so that we can detect key presses. */
+void
+rl_prep_terminal (meta_flag)
+     int meta_flag;
+{
+#if !defined (__GO32__)
+  int tty;
+  TIOTYPE tio;
+
+  if (terminal_prepped)
+    return;
+
+  /* Try to keep this function from being INTerrupted. */
+  block_sigint ();
+
+  tty = fileno (rl_instream);
+
+  if (get_tty_settings (tty, &tio) < 0)
+    {
+      release_sigint ();
+      return;
+    }
+
+  otio = tio;
+
+  prepare_terminal_settings (meta_flag, otio, &tio);
+
+  if (set_tty_settings (tty, &tio) < 0)
+    {
+      release_sigint ();
+      return;
+    }
+
+  if (_rl_enable_keypad)
+    _rl_control_keypad (1);
+
+  fflush (rl_outstream);
+  terminal_prepped = 1;
+
+  release_sigint ();
+#endif /* !__GO32__ */
+}
+
+/* Restore the terminal's normal settings and modes. */
+void
+rl_deprep_terminal ()
+{
+#if !defined (__GO32__)
+  int tty;
+
+  if (!terminal_prepped)
+    return;
+
+  /* Try to keep this function from being interrupted. */
+  block_sigint ();
+
+  tty = fileno (rl_instream);
+
+  if (_rl_enable_keypad)
+    _rl_control_keypad (0);
+
+  fflush (rl_outstream);
+
+  if (set_tty_settings (tty, &otio) < 0)
+    {
+      release_sigint ();
+      return;
+    }
+
+  terminal_prepped = 0;
+
+  release_sigint ();
+#endif /* !__GO32__ */
+}
+
+/* **************************************************************** */
+/*								    */
+/*			Bogus Flow Control      		    */
+/*								    */
+/* **************************************************************** */
+
+int
+rl_restart_output (count, key)
+     int count, key;
+{
+  int fildes = fileno (rl_outstream);
+#if defined (TIOCSTART)
+#if defined (apollo)
+  ioctl (&fildes, TIOCSTART, 0);
+#else
+  ioctl (fildes, TIOCSTART, 0);
+#endif /* apollo */
+
+#else /* !TIOCSTART */
+#  if defined (TERMIOS_TTY_DRIVER)
+#    if defined (__ksr1__)
+  if (ksrflow)
+    {
+      ksrflow = 0;
+      tcflow (fildes, TCOON);
+    }
+#    else /* !ksr1 */
+  tcflow (fildes, TCOON);		/* Simulate a ^Q. */
+#    endif /* !ksr1 */
+#  else /* !TERMIOS_TTY_DRIVER */
+#    if defined (TCXONC)
+  ioctl (fildes, TCXONC, TCOON);
+#    endif /* TCXONC */
+#  endif /* !TERMIOS_TTY_DRIVER */
+#endif /* !TIOCSTART */
+
+  return 0;
+}
+
+int
+rl_stop_output (count, key)
+     int count, key;
+{
+  int fildes = fileno (rl_instream);
+
+#if defined (TIOCSTOP)
+# if defined (apollo)
+  ioctl (&fildes, TIOCSTOP, 0);
+# else
+  ioctl (fildes, TIOCSTOP, 0);
+# endif /* apollo */
+#else /* !TIOCSTOP */
+# if defined (TERMIOS_TTY_DRIVER)
+#  if defined (__ksr1__)
+  ksrflow = 1;
+#  endif /* ksr1 */
+  tcflow (fildes, TCOOFF);
+# else
+#   if defined (TCXONC)
+  ioctl (fildes, TCXONC, TCOON);
+#   endif /* TCXONC */
+# endif /* !TERMIOS_TTY_DRIVER */
+#endif /* !TIOCSTOP */
+
+  return 0;
+}
+
+/* **************************************************************** */
+/*								    */
+/*			Default Key Bindings			    */
+/*								    */
+/* **************************************************************** */
+void
+rltty_set_default_bindings (kmap)
+     Keymap kmap;
+{
+  TIOTYPE ttybuff;
+  int tty = fileno (rl_instream);
+
+#if defined (NEW_TTY_DRIVER)
+
+#define SET_SPECIAL(sc, func) \
+  do \
+    { \
+      int ic; \
+      ic = sc; \
+      if (ic != -1 && kmap[ic].type == ISFUNC) \
+	kmap[ic].function = func; \
+    } \
+  while (0)
+
+  if (get_tty_settings (tty, &ttybuff) == 0)
+    {
+      if (ttybuff.flags & SGTTY_SET)
+	{
+	  SET_SPECIAL (ttybuff.sgttyb.sg_erase, rl_rubout);
+	  SET_SPECIAL (ttybuff.sgttyb.sg_kill, rl_unix_line_discard);
+	}
+
+#  if defined (TIOCGLTC)
+      if (ttybuff.flags & LTCHARS_SET)
+	{
+	  SET_SPECIAL (ttybuff.ltchars.t_werasc, rl_unix_word_rubout);
+	  SET_SPECIAL (ttybuff.ltchars.t_lnextc, rl_quoted_insert);
+	}
+#  endif /* TIOCGLTC */
+    }
+
+#else /* !NEW_TTY_DRIVER */
+
+#define SET_SPECIAL(sc, func) \
+  do \
+    { \
+      unsigned char uc; \
+      uc = ttybuff.c_cc[sc]; \
+      if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC) \
+	kmap[uc].function = func; \
+    } \
+  while (0)
+
+  if (get_tty_settings (tty, &ttybuff) == 0)
+    {
+      SET_SPECIAL (VERASE, rl_rubout);
+      SET_SPECIAL (VKILL, rl_unix_line_discard);
+
+#  if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER)
+      SET_SPECIAL (VLNEXT, rl_quoted_insert);
+#  endif /* VLNEXT && TERMIOS_TTY_DRIVER */
+
+#  if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER)
+      SET_SPECIAL (VWERASE, rl_unix_word_rubout);
+#  endif /* VWERASE && TERMIOS_TTY_DRIVER */
+    }
+#endif /* !NEW_TTY_DRIVER */
+}
diff --git a/readline/rltty.h b/readline/rltty.h
new file mode 100644
index 00000000000..fe783463f6a
--- /dev/null
+++ b/readline/rltty.h
@@ -0,0 +1,63 @@
+/* rltty.h - tty driver-related definitions used by some library files. */
+
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+
+   This file contains the Readline Library (the Library), a set of
+   routines for providing Emacs style line input to programs that ask
+   for it.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (_RLTTY_H_)
+#define _RLTTY_H
+
+/* Posix systems use termios and the Posix signal functions. */
+#if defined (TERMIOS_TTY_DRIVER)
+#  include <termios.h>
+#endif /* TERMIOS_TTY_DRIVER */
+
+/* System V machines use termio. */
+#if defined (TERMIO_TTY_DRIVER)
+#  include <termio.h>
+#  if !defined (TCOON)
+#    define TCOON 1
+#  endif
+#endif /* TERMIO_TTY_DRIVER */
+
+/* Other (BSD) machines use sgtty. */
+#if defined (NEW_TTY_DRIVER)
+#  include <sgtty.h>
+#endif
+
+#include "rlwinsize.h"
+
+/* Define _POSIX_VDISABLE if we are not using the `new' tty driver and
+   it is not already defined.  It is used both to determine if a
+   special character is disabled and to disable certain special
+   characters.  Posix systems should set to 0, USG systems to -1. */
+#if !defined (NEW_TTY_DRIVER) && !defined (_POSIX_VDISABLE)
+#  if defined (_SVR4_VDISABLE)
+#    define _POSIX_VDISABLE _SVR4_VDISABLE
+#  else
+#    if defined (_POSIX_VERSION)
+#      define _POSIX_VDISABLE 0
+#    else /* !_POSIX_VERSION */
+#      define _POSIX_VDISABLE -1
+#    endif /* !_POSIX_VERSION */
+#  endif /* !_SVR4_DISABLE */
+#endif /* !NEW_TTY_DRIVER && !_POSIX_VDISABLE */
+
+#endif /* _RLTTY_H_ */
diff --git a/readline/rlwinsize.h b/readline/rlwinsize.h
new file mode 100644
index 00000000000..92b3de174bf
--- /dev/null
+++ b/readline/rlwinsize.h
@@ -0,0 +1,58 @@
+/* rlwinsize.h -- an attempt to isolate some of the system-specific defines
+   for `struct winsize' and TIOCGWINSZ. */
+
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+
+   This file contains the Readline Library (the Library), a set of
+   routines for providing Emacs style line input to programs that ask
+   for it.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (_RLWINSIZE_H_)
+#define _RLWINSIZE_H_
+
+#if defined (HAVE_CONFIG_H)
+#  include "config.h"
+#endif
+
+/* Try to find the definitions of `struct winsize' and TIOGCWINSZ */
+
+#if defined (GWINSZ_IN_SYS_IOCTL) && !defined (TIOCGWINSZ)
+#  include <sys/ioctl.h>
+#endif /* GWINSZ_IN_SYS_IOCTL && !TIOCGWINSZ */
+
+#if defined (STRUCT_WINSIZE_IN_TERMIOS) && !defined (STRUCT_WINSIZE_IN_SYS_IOCTL)
+#  include <termios.h>
+#endif /* STRUCT_WINSIZE_IN_TERMIOS && !STRUCT_WINSIZE_IN_SYS_IOCTL */
+
+/* Not in either of the standard places, look around. */
+#if !defined (STRUCT_WINSIZE_IN_TERMIOS) && !defined (STRUCT_WINSIZE_IN_SYS_IOCTL)
+#  if defined (HAVE_SYS_STREAM_H)
+#    include <sys/stream.h>
+#  endif /* HAVE_SYS_STREAM_H */
+#  if defined (HAVE_SYS_PTEM_H) /* SVR4.2, at least, has it here */
+#    include <sys/ptem.h>
+#    define _IO_PTEM_H          /* work around SVR4.2 1.1.4 bug */
+#  endif /* HAVE_SYS_PTEM_H */
+#  if defined (HAVE_SYS_PTE_H)  /* ??? */
+#    include <sys/pte.h>
+#  endif /* HAVE_SYS_PTE_H */
+#endif /* !STRUCT_WINSIZE_IN_TERMIOS && !STRUCT_WINSIZE_IN_SYS_IOCTL */
+
+#endif /* _RL_WINSIZE_H */
+
+
diff --git a/readline/search.c b/readline/search.c
new file mode 100644
index 00000000000..3024ee59677
--- /dev/null
+++ b/readline/search.c
@@ -0,0 +1,378 @@
+/* search.c - code for non-incremental searching in emacs and vi modes. */
+
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+
+   This file is part of the Readline Library (the Library), a set of
+   routines for providing Emacs style line input to programs that ask
+   for it.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+#include <stdio.h>
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif
+
+#include "rldefs.h"
+#include "readline.h"
+#include "history.h"
+
+#ifdef abs
+#  undef abs
+#endif
+#define abs(x)		(((x) >= 0) ? (x) : -(x))
+
+extern char *xmalloc (), *xrealloc ();
+
+/* Variables imported from readline.c */
+extern int rl_point, rl_end, rl_line_buffer_len;
+extern int rl_editing_mode;
+extern char *rl_prompt;
+extern char *rl_line_buffer;
+extern HIST_ENTRY *saved_line_for_history;
+extern Function *rl_last_func;
+
+/* Functions imported from the rest of the library. */
+extern int _rl_free_history_entry ();
+extern char *_rl_make_prompt_for_search ();
+extern void _rl_restore_prompt ();
+extern void rl_extend_line_buffer ();
+
+static char *noninc_search_string = (char *) NULL;
+static int noninc_history_pos;
+static char *prev_line_found = (char *) NULL;
+
+/* Search the history list for STRING starting at absolute history position
+   POS.  If STRING begins with `^', the search must match STRING at the
+   beginning of a history line, otherwise a full substring match is performed
+   for STRING.  DIR < 0 means to search backwards through the history list,
+   DIR >= 0 means to search forward. */
+static int
+noninc_search_from_pos (string, pos, dir)
+     char *string;
+     int pos, dir;
+{
+  int ret, old;
+
+  old = where_history ();
+  history_set_pos (pos);
+
+  if (*string == '^')
+    ret = history_search_prefix (string + 1, dir);
+  else
+    ret = history_search (string, dir);
+
+  if (ret != -1)
+    ret = where_history ();
+
+  history_set_pos (old);
+  return (ret);
+}
+
+/* Search for a line in the history containing STRING.  If DIR is < 0, the
+   search is backwards through previous entries, else through subsequent
+   entries. */
+static void
+noninc_dosearch (string, dir)
+     char *string;
+     int dir;
+{
+  int oldpos, pos, line_len;
+  HIST_ENTRY *entry;
+
+  if (string == 0 || *string == '\0' || noninc_history_pos < 0)
+    {
+      ding ();
+      return;
+    }
+
+  pos = noninc_search_from_pos (string, noninc_history_pos + dir, dir);
+  if (pos == -1)
+    {
+      /* Search failed, current history position unchanged. */
+      maybe_unsave_line ();
+      rl_clear_message ();
+      rl_point = 0;
+      ding ();
+      return;
+    }
+
+  noninc_history_pos = pos;
+
+  oldpos = where_history ();
+  history_set_pos (noninc_history_pos);
+  entry = current_history ();
+#if defined (VI_MODE)
+  if (rl_editing_mode != vi_mode)
+#endif
+  history_set_pos (oldpos);
+
+  line_len = strlen (entry->line);
+  if (line_len >= rl_line_buffer_len)
+    rl_extend_line_buffer (line_len);
+  strcpy (rl_line_buffer, entry->line);
+
+  rl_undo_list = (UNDO_LIST *)entry->data;
+  rl_end = strlen (rl_line_buffer);
+  rl_point = 0;
+  rl_clear_message ();
+
+  if (saved_line_for_history)
+    _rl_free_history_entry (saved_line_for_history);
+  saved_line_for_history = (HIST_ENTRY *)NULL;
+}
+
+/* Search non-interactively through the history list.  DIR < 0 means to
+   search backwards through the history of previous commands; otherwise
+   the search is for commands subsequent to the current position in the
+   history list.  PCHAR is the character to use for prompting when reading
+   the search string; if not specified (0), it defaults to `:'. */
+static void
+noninc_search (dir, pchar)
+     int dir;
+     int pchar;
+{
+  int saved_point, c;
+  char *p;
+
+  maybe_save_line ();
+  saved_point = rl_point;
+
+  /* Use the line buffer to read the search string. */
+  rl_line_buffer[0] = 0;
+  rl_end = rl_point = 0;
+
+  p = _rl_make_prompt_for_search (pchar ? pchar : ':');
+  rl_message (p, 0, 0);
+  free (p);
+
+#define SEARCH_RETURN _rl_restore_prompt (); return
+
+  /* Read the search string. */
+  while (c = rl_read_key ())
+    {
+      switch (c)
+	{
+	case CTRL('H'):
+	case RUBOUT:
+	  if (rl_point == 0)
+	    {
+	      maybe_unsave_line ();
+	      rl_clear_message ();
+	      rl_point = saved_point;
+	      SEARCH_RETURN;
+	    }
+	  rl_rubout (1, c);
+	  break;
+
+	case CTRL('W'):
+	  rl_unix_word_rubout (1, c);
+	  break;
+
+	case CTRL('U'):
+	  rl_unix_line_discard (1, c);
+	  break;
+
+	case RETURN:
+	case NEWLINE:
+	  goto dosearch;
+	  /* NOTREACHED */
+	  break;
+
+	case CTRL('C'):
+	case CTRL('G'):
+	  maybe_unsave_line ();
+	  rl_clear_message ();
+	  rl_point = saved_point;
+	  ding ();
+	  SEARCH_RETURN;
+
+	default:
+	  rl_insert (1, c);
+	  break;
+	}
+      (*rl_redisplay_function) ();
+    }
+
+ dosearch:
+  /* If rl_point == 0, we want to re-use the previous search string and
+     start from the saved history position.  If there's no previous search
+     string, punt. */
+  if (rl_point == 0)
+    {
+      if (!noninc_search_string)
+	{
+	  ding ();
+	  SEARCH_RETURN;
+	}
+    }
+  else
+    {
+      /* We want to start the search from the current history position. */
+      noninc_history_pos = where_history ();
+      if (noninc_search_string)
+	free (noninc_search_string);
+      noninc_search_string = savestring (rl_line_buffer);
+    }
+
+  _rl_restore_prompt ();
+  noninc_dosearch (noninc_search_string, dir);
+}
+
+/* Search forward through the history list for a string.  If the vi-mode
+   code calls this, KEY will be `?'. */
+int
+rl_noninc_forward_search (count, key)
+     int count, key;
+{
+  noninc_search (1, (key == '?') ? '?' : 0);
+  return 0;
+}
+
+/* Reverse search the history list for a string.  If the vi-mode code
+   calls this, KEY will be `/'. */
+int
+rl_noninc_reverse_search (count, key)
+     int count, key;
+{
+  noninc_search (-1, (key == '/') ? '/' : 0);
+  return 0;
+}
+
+/* Search forward through the history list for the last string searched
+   for.  If there is no saved search string, abort. */
+int
+rl_noninc_forward_search_again (count, key)
+     int count, key;
+{
+  if (!noninc_search_string)
+    {
+      ding ();
+      return (-1);
+    }
+  noninc_dosearch (noninc_search_string, 1);
+  return 0;
+}
+
+/* Reverse search in the history list for the last string searched
+   for.  If there is no saved search string, abort. */
+int
+rl_noninc_reverse_search_again (count, key)
+     int count, key;
+{
+  if (!noninc_search_string)
+    {
+      ding ();
+      return (-1);
+    }
+  noninc_dosearch (noninc_search_string, -1);
+  return 0;
+}
+
+static int
+rl_history_search_internal (count, direction)
+     int count, direction;
+{
+  HIST_ENTRY *temp, *old_temp;
+  int line_len;
+
+  maybe_save_line ();
+
+  temp = old_temp = (HIST_ENTRY *)NULL;
+  while (count)
+    {
+      temp = (direction < 0) ? previous_history () : next_history ();
+      if (temp == 0)
+        break;
+      /* On an empty prefix, make this the same as previous-history. */
+      if (rl_point == 0)
+	{
+	  count--;
+	  continue;
+	}
+      if (STREQN (rl_line_buffer, temp->line, rl_point))
+	{
+	  /* Don't find multiple instances of the same line. */
+	  if (prev_line_found && STREQ (prev_line_found, temp->line))
+	    continue;
+          if (direction < 0)
+            old_temp = temp;
+          prev_line_found = temp->line;
+          count--;
+	}
+    }
+
+  if (temp == 0)
+    {
+      if (direction < 0 && old_temp)
+	temp = old_temp;
+      else
+	{
+	  maybe_unsave_line ();
+	  ding ();
+	  return 1;
+	}
+    }
+
+  line_len = strlen (temp->line);
+  if (line_len >= rl_line_buffer_len)
+    rl_extend_line_buffer (line_len);
+  strcpy (rl_line_buffer, temp->line);
+  rl_undo_list = (UNDO_LIST *)temp->data;
+  rl_end = line_len;
+  return 0;
+}
+
+/* Search forward in the history for the string of characters
+   from the start of the line to rl_point.  This is a non-incremental
+   search. */
+int
+rl_history_search_forward (count, ignore)
+     int count, ignore;
+{
+  if (count == 0)
+    return (0);
+  if (rl_last_func != rl_history_search_forward)
+    prev_line_found = (char *)NULL;
+  return (rl_history_search_internal (abs (count), (count > 0) ? 1 : -1));
+}
+
+/* Search backward through the history for the string of characters
+   from the start of the line to rl_point.  This is a non-incremental
+   search. */
+int
+rl_history_search_backward (count, ignore)
+     int count, ignore;
+{
+  if (count == 0)
+    return (0);
+  if (rl_last_func != rl_history_search_backward)
+    prev_line_found = (char *)NULL;
+  return (rl_history_search_internal (abs (count), (count > 0) ? -1 : 1));
+}
diff --git a/readline/shell.c b/readline/shell.c
new file mode 100644
index 00000000000..8bc2fe9b4f9
--- /dev/null
+++ b/readline/shell.c
@@ -0,0 +1,140 @@
+/* shell.c -- readline utility functions that are normally provided by
+	      bash when readline is linked as part of the shell. */
+
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#if defined (HAVE_UNISTD_H)
+#  ifdef _MINIX
+#    include <sys/types.h>
+#  endif
+#  include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#if defined (HAVE_STRING_H)
+#  include <string.h>
+#else
+#  include <strings.h>
+#endif /* !HAVE_STRING_H */
+
+extern char *xmalloc (), *xrealloc ();
+
+#if !defined (SHELL)
+
+#ifdef savestring
+#undef savestring
+#endif
+
+/* Backwards compatibility, now that savestring has been removed from
+   all `public' readline header files. */
+#if 0
+char *
+savestring (s)
+     char *s;
+{
+  return ((char *)strcpy (xmalloc (1 + (int)strlen (s)), (s)));
+}
+#endif
+
+/* Does shell-like quoting using single quotes. */
+char *
+single_quote (string)
+     char *string;
+{
+  register int c;
+  char *result, *r, *s;
+
+  result = (char *)xmalloc (3 + (3 * strlen (string)));
+  r = result;
+  *r++ = '\'';
+
+  for (s = string; s && (c = *s); s++)
+    {
+      *r++ = c;
+
+      if (c == '\'')
+	{
+	  *r++ = '\\';	/* insert escaped single quote */
+	  *r++ = '\'';
+	  *r++ = '\'';	/* start new quoted string */
+	}
+    }
+
+  *r++ = '\'';
+  *r = '\0';
+
+  return (result);
+}
+
+/* Set the environment variables LINES and COLUMNS to lines and cols,
+   respectively. */
+void
+set_lines_and_columns (lines, cols)
+     int lines, cols;
+{
+  char *b;
+
+#if defined (HAVE_PUTENV)
+  b = xmalloc (24);
+  sprintf (b, "LINES=%d", lines);
+  putenv (b);
+  b = xmalloc (24);
+  sprintf (b, "COLUMNS=%d", cols);
+  putenv (b);
+#else /* !HAVE_PUTENV */
+#  if defined (HAVE_SETENV)
+  b = xmalloc (8);
+  sprintf (b, "%d", lines);
+  setenv ("LINES", b, 1);
+  b = xmalloc (8);
+  sprintf (b, "%d", cols);
+  setenv ("COLUMNS", b, 1);
+#  endif /* HAVE_SETENV */
+#endif /* !HAVE_PUTENV */
+}
+
+char *
+get_env_value (varname)
+     char *varname;
+{
+  return ((char *)getenv (varname));
+}
+
+#else /* SHELL */
+extern char *get_string_value ();
+
+char *
+get_env_value (varname)
+     char *varname;
+{
+  return get_string_value (varname);
+}	
+#endif /* SHELL */
diff --git a/readline/signals.c b/readline/signals.c
new file mode 100644
index 00000000000..e19c22d3641
--- /dev/null
+++ b/readline/signals.c
@@ -0,0 +1,363 @@
+/* signals.c -- signal handling support for readline. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <stdio.h>		/* Just for NULL.  Yuck. */
+#include <sys/types.h>
+#include <signal.h>
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+#if defined (GWINSZ_IN_SYS_IOCTL)
+#  include <sys/ioctl.h>
+#endif /* GWINSZ_IN_SYS_IOCTL */
+
+#if defined (__GO32__)
+#  undef HANDLE_SIGNALS
+#endif /* __GO32__ */
+
+#if defined (HANDLE_SIGNALS)
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+extern int readline_echoing_p;
+extern int rl_pending_input;
+extern int _rl_meta_flag;
+
+extern void free_undo_list ();
+extern void _rl_get_screen_size ();
+extern void _rl_redisplay_after_sigwinch ();
+extern void _rl_clean_up_for_exit ();
+extern void _rl_kill_kbd_macro ();
+extern void _rl_init_argument ();
+extern void rl_deprep_terminal (), rl_prep_terminal ();
+
+#if !defined (RETSIGTYPE)
+#  if defined (VOID_SIGHANDLER)
+#    define RETSIGTYPE void
+#  else
+#    define RETSIGTYPE int
+#  endif /* !VOID_SIGHANDLER */
+#endif /* !RETSIGTYPE */
+
+#if defined (VOID_SIGHANDLER)
+#  define SIGHANDLER_RETURN return
+#else
+#  define SIGHANDLER_RETURN return (0)
+#endif
+
+/* This typedef is equivalant to the one for Function; it allows us
+   to say SigHandler *foo = signal (SIGKILL, SIG_IGN); */
+typedef RETSIGTYPE SigHandler ();
+
+static SigHandler *rl_set_sighandler ();
+
+/* **************************************************************** */
+/*					        		    */
+/*			   Signal Handling                          */
+/*								    */
+/* **************************************************************** */
+
+/* If we're not being compiled as part of bash, initialize handlers for
+   and catch the job control signals (SIGTTIN, SIGTTOU, SIGTSTP) and
+   SIGTERM. */
+#if !defined (SHELL)
+#  define HANDLE_JOB_SIGNALS
+#  define HANDLE_SIGTERM
+#endif /* !SHELL */
+
+#if defined (HAVE_POSIX_SIGNALS)
+typedef struct sigaction sighandler_cxt;
+#  define rl_sigaction(s, nh, oh)	sigaction(s, nh, oh)
+#else
+typedef struct { SigHandler *sa_handler; } sighandler_cxt;
+#  define sigemptyset(m)
+#endif /* !HAVE_POSIX_SIGNALS */
+
+static sighandler_cxt old_int, old_alrm;
+
+#if defined (HANDLE_JOB_SIGNALS)
+static sighandler_cxt old_tstp, old_ttou, old_ttin;
+#endif /* HANDLE_JOB_SIGNALS */
+
+#if defined (HANDLE_SIGTERM)
+static sighandler_cxt old_term;
+#endif
+
+#if defined (SIGWINCH)
+static sighandler_cxt old_winch;
+#endif
+
+/* Readline signal handler functions. */
+
+static RETSIGTYPE
+rl_signal_handler (sig)
+     int sig;
+{
+#if defined (HAVE_POSIX_SIGNALS)
+  sigset_t set;
+#else /* !HAVE_POSIX_SIGNALS */
+#  if defined (HAVE_BSD_SIGNALS)
+  long omask;
+#  else /* !HAVE_BSD_SIGNALS */
+  sighandler_cxt dummy_cxt;	/* needed for rl_set_sighandler call */
+#  endif /* !HAVE_BSD_SIGNALS */
+#endif /* !HAVE_POSIX_SIGNALS */
+
+#if !defined (HAVE_BSD_SIGNALS) && !defined (HAVE_POSIX_SIGNALS)
+  /* Since the signal will not be blocked while we are in the signal
+     handler, ignore it until rl_clear_signals resets the catcher. */
+  if (sig == SIGINT || sig == SIGALRM)
+    rl_set_sighandler (sig, SIG_IGN, &dummy_cxt);
+#endif /* !HAVE_BSD_SIGNALS && !HAVE_POSIX_SIGNALS */
+
+  switch (sig)
+    {
+    case SIGINT:
+      {
+	register HIST_ENTRY *entry;
+
+	free_undo_list ();
+
+	entry = current_history ();
+	if (entry)
+	  entry->data = (char *)NULL;
+      }
+      _rl_kill_kbd_macro ();
+      rl_clear_message ();
+      _rl_init_argument ();
+
+#if defined (SIGTSTP)
+    case SIGTSTP:
+    case SIGTTOU:
+    case SIGTTIN:
+#endif /* SIGTSTP */
+    case SIGALRM:
+    case SIGTERM:
+      _rl_clean_up_for_exit ();
+      (*rl_deprep_term_function) ();
+      rl_clear_signals ();
+      rl_pending_input = 0;
+
+#if defined (HAVE_POSIX_SIGNALS)
+      sigprocmask (SIG_BLOCK, (sigset_t *)NULL, &set);
+      sigdelset (&set, sig);
+#else /* !HAVE_POSIX_SIGNALS */
+#  if defined (HAVE_BSD_SIGNALS)
+      omask = sigblock (0);
+#  endif /* HAVE_BSD_SIGNALS */
+#endif /* !HAVE_POSIX_SIGNALS */
+
+      kill (getpid (), sig);
+
+      /* Let the signal that we just sent through.  */
+#if defined (HAVE_POSIX_SIGNALS)
+      sigprocmask (SIG_SETMASK, &set, (sigset_t *)NULL);
+#else /* !HAVE_POSIX_SIGNALS */
+#  if defined (HAVE_BSD_SIGNALS)
+      sigsetmask (omask & ~(sigmask (sig)));
+#  endif /* HAVE_BSD_SIGNALS */
+#endif /* !HAVE_POSIX_SIGNALS */
+
+      (*rl_prep_term_function) (_rl_meta_flag);
+      rl_set_signals ();
+    }
+
+  SIGHANDLER_RETURN;
+}
+
+#if defined (SIGWINCH)
+static RETSIGTYPE
+rl_handle_sigwinch (sig)
+     int sig;
+{
+  SigHandler *oh;
+
+#if defined (MUST_REINSTALL_SIGHANDLERS)
+  sighandler_cxt dummy_winch;
+
+  /* We don't want to change old_winch -- it holds the state of SIGWINCH
+     disposition set by the calling application.  We need this state
+     because we call the application's SIGWINCH handler after updating
+     our own idea of the screen size. */
+  rl_set_sighandler (SIGWINCH, rl_handle_sigwinch, &dummy_winch);
+#endif
+
+  if (readline_echoing_p)
+    {
+      _rl_get_screen_size (fileno (rl_instream), 1);
+      _rl_redisplay_after_sigwinch ();
+    }
+
+  /* If another sigwinch handler has been installed, call it. */
+  oh = (SigHandler *)old_winch.sa_handler;
+  if (oh &&  oh != (SigHandler *)SIG_IGN && oh != (SigHandler *)SIG_DFL)
+    (*oh) (sig);
+
+  SIGHANDLER_RETURN;
+}
+#endif  /* SIGWINCH */
+
+/* Functions to manage signal handling. */
+
+#if !defined (HAVE_POSIX_SIGNALS)
+static int
+rl_sigaction (sig, nh, oh)
+     int sig;
+     sighandler_cxt *nh, *oh;
+{
+  oh->sa_handler = signal (sig, nh->sa_handler);
+  return 0;
+}
+#endif /* !HAVE_POSIX_SIGNALS */
+
+/* Set up a readline-specific signal handler, saving the old signal
+   information in OHANDLER.  Return the old signal handler, like
+   signal(). */
+static SigHandler *
+rl_set_sighandler (sig, handler, ohandler)
+     int sig;
+     SigHandler *handler;
+     sighandler_cxt *ohandler;
+{
+#if defined (HAVE_POSIX_SIGNALS)
+  struct sigaction act;
+
+  act.sa_handler = handler;
+  act.sa_flags = 0;
+  sigemptyset (&act.sa_mask);
+  sigemptyset (&ohandler->sa_mask);
+  sigaction (sig, &act, ohandler);
+#else
+  ohandler->sa_handler = (SigHandler *)signal (sig, handler);
+#endif /* !HAVE_POSIX_SIGNALS */
+  return (ohandler->sa_handler);
+}
+
+int
+rl_set_signals ()
+{
+  sighandler_cxt dummy;
+  SigHandler *oh;
+
+#if defined (HAVE_POSIX_SIGNALS)
+  sigemptyset (&dummy.sa_mask);
+#endif
+
+  oh = rl_set_sighandler (SIGINT, rl_signal_handler, &old_int);
+  if (oh == (SigHandler *)SIG_IGN)
+    rl_sigaction (SIGINT, &old_int, &dummy);
+
+  oh = rl_set_sighandler (SIGALRM, rl_signal_handler, &old_alrm);
+  if (oh == (SigHandler *)SIG_IGN)
+    rl_sigaction (SIGALRM, &old_alrm, &dummy);
+#if defined (HAVE_POSIX_SIGNALS) && defined (SA_RESTART)
+  /* If the application using readline has already installed a signal
+     handler with SA_RESTART, SIGALRM will cause reads to be restarted
+     automatically, so readline should just get out of the way.  Since
+     we tested for SIG_IGN above, we can just test for SIG_DFL here. */
+  if (oh != (SigHandler *)SIG_DFL && (old_alrm.sa_flags & SA_RESTART))
+    rl_sigaction (SIGALRM, &old_alrm, &dummy);
+#endif /* HAVE_POSIX_SIGNALS */
+
+#if defined (HANDLE_JOB_SIGNALS)
+
+#if defined (SIGTSTP)
+  oh = rl_set_sighandler (SIGTSTP, rl_signal_handler, &old_tstp);
+  if (oh == (SigHandler *)SIG_IGN)
+    rl_sigaction (SIGTSTP, &old_tstp, &dummy);
+#else
+  oh = (SigHandler *)NULL;
+#endif /* SIGTSTP */
+
+#if defined (SIGTTOU)
+  rl_set_sighandler (SIGTTOU, rl_signal_handler, &old_ttou);
+  rl_set_sighandler (SIGTTIN, rl_signal_handler, &old_ttin);
+
+  if (oh == (SigHandler *)SIG_IGN)
+    {
+      rl_set_sighandler (SIGTTOU, SIG_IGN, &dummy);
+      rl_set_sighandler (SIGTTIN, SIG_IGN, &dummy);
+    }
+#endif /* SIGTTOU */
+
+#endif /* HANDLE_JOB_SIGNALS */
+
+#if defined (HANDLE_SIGTERM)
+  /* Handle SIGTERM if we're not being compiled as part of bash. */
+  rl_set_sighandler (SIGTERM, rl_signal_handler, &old_term);
+#endif /* HANDLE_SIGTERM */
+
+#if defined (SIGWINCH)
+  rl_set_sighandler (SIGWINCH, rl_handle_sigwinch, &old_winch);
+#endif /* SIGWINCH */
+
+  return 0;
+}
+
+int
+rl_clear_signals ()
+{
+  sighandler_cxt dummy;
+
+#if defined (HAVE_POSIX_SIGNALS)
+  sigemptyset (&dummy.sa_mask);
+#endif
+
+  rl_sigaction (SIGINT, &old_int, &dummy);
+  rl_sigaction (SIGALRM, &old_alrm, &dummy);
+
+#if defined (HANDLE_JOB_SIGNALS)
+
+#if defined (SIGTSTP)
+  rl_sigaction (SIGTSTP, &old_tstp, &dummy);
+#endif
+
+#if defined (SIGTTOU)
+  rl_sigaction (SIGTTOU, &old_ttou, &dummy);
+  rl_sigaction (SIGTTIN, &old_ttin, &dummy);
+#endif /* SIGTTOU */
+
+#endif /* HANDLE_JOB_SIGNALS */
+
+#if defined (HANDLE_SIGTERM)
+  rl_sigaction (SIGTERM, &old_term, &dummy);
+#endif /* HANDLE_SIGTERM */
+
+#if defined (SIGWINCH)
+  sigemptyset (&dummy.sa_mask);
+  rl_sigaction (SIGWINCH, &old_winch, &dummy);
+#endif
+
+  return 0;
+}
+#endif  /* HANDLE_SIGNALS */
diff --git a/readline/support/config.guess b/readline/support/config.guess
new file mode 100755
index 00000000000..0e11ad86e3a
--- /dev/null
+++ b/readline/support/config.guess
@@ -0,0 +1,1130 @@
+#! /bin/sh
+# Attempt to guess a canonical system name.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
+#
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Written by Per Bothner <bothner@cygnus.com>.
+# The master version of this file is at the FSF in /home/gd/gnu/lib.
+#
+# This script attempts to guess a canonical system name similar to
+# config.sub.  If it succeeds, it prints the system name on stdout, and
+# exits with 0.  Otherwise, it exits with 1.
+#
+# The plan is that this can be called by configure scripts if you
+# don't specify an explicit system type (host/target name).
+#
+# Only a few systems have been added to this list; please add others
+# (but try to keep the structure clean).
+#
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 8/24/94.)
+if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
+	PATH=$PATH:/.attbin ; export PATH
+elif (test -f /usr/5bin/uname) >/dev/null 2>&1 ; then
+	PATH=$PATH:/usr/5bin
+fi
+
+UNAME=`(uname) 2>/dev/null` || UNAME=unknown
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+RELEASE=`expr "$UNAME_RELEASE" : '[^0-9]*\([0-9]*\)'` # 4
+case "$RELEASE" in
+"")	RELEASE=0 ;;
+*)	RELEASE=`expr "$RELEASE" + 0` ;;
+esac
+REL_LEVEL=`expr "$UNAME_RELEASE" : '[^0-9]*[0-9]*.\([0-9]*\)'`    # 1
+REL_SUBLEVEL=`expr "$UNAME_RELEASE" : '[^0-9]*[0-9]*.[0-9]*.\([0-9]*\)'` # 2
+
+trap 'rm -f dummy.c dummy.o dummy; exit 1' 1 2 15
+
+# Some versions of i386 SVR4.2 make `uname' equivalent to `uname -n', which
+# is contrary to all other versions of uname
+if [ -n "$UNAME" ] && [ "$UNAME_S" != "$UNAME" ] && [ "$UNAME_S" = UNIX_SV ]; then
+	UNAME=UNIX_SV
+fi
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
+    # Begin cases added for Bash
+    alpha:NetBSD:*:*)
+	echo alpha-dec-netbsd${UNAME_RELEASE}
+	exit 0 ;;
+    alpha:OpenBSD:*:*)
+	echo alpha-dec-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    i?86:NetBSD:*:*)
+	echo ${UNAME_MACHINE}-pc-netbsd`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+	exit 0 ;;
+    i?86:OpenBSD:*:*)
+	echo ${UNAME_MACHINE}-pc-openbsd`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+	exit 0 ;;
+    i?86:FreeBSD:*:*)
+	echo ${UNAME_MACHINE}-pc-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
+	exit 0 ;;
+    sparc:NetBSD:*:*)
+	echo sparc-unknown-netbsd${UNAME_RELEASE}
+	exit 0 ;;
+    sparc:OpenBSD:*:*)
+	echo sparc-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    vax:NetBSD:*:*)
+	echo vax-dec-netbsd${UNAME_RELEASE}
+	exit 0 ;;
+    vax:OpenBSD:*:*)
+	echo vax-dec-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    mac68k:machten:*:*)
+	echo mac68k-apple-machten${UNAME_RELEASE}
+	exit 0 ;;
+    concurrent*:*:*:*)
+	if test "`(/bin/universe) 2>/dev/null`" = att ; then
+		echo concurrent-concurrent-sysv3
+	else
+		echo concurrent-concurrent-bsd
+	fi
+	exit 0 ;;
+    ppc*:SunOS:5.*:*)
+	echo ppc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit 0 ;;
+    sparc:UNIX_SV:4.*:*)
+	echo sparc-unknown-sysv${UNAME_RELEASE}
+	exit 0 ;;
+    mips:UNIX_SV:4.*:*)
+	echo mips-mips-sysv${UNAME_RELEASE}
+	exit 0 ;;
+    mips:OSF*1:*:*)
+	echo mips-mips-osf1
+	exit 0 ;;
+    mips:4.4BSD:*:*)
+	echo mips-mips-bsd4.4
+	exit 0 ;;
+    MIServer-S:SMP_DC.OSx:*:dcosx)
+	echo mips-pyramid-sysv4
+	exit 0 ;;
+    news*:NEWS*:*:*)
+	echo mips-sony-newsos${UNAME_RELEASE}
+	exit 0 ;;
+    i?86:NEXTSTEP:*:*)
+	echo i386-next-nextstep${RELEASE}
+	exit 0 ;;
+    *680?0:NEXTSTEP:*:*)
+	echo m68k-next-nextstep${RELEASE}
+	exit 0 ;;    
+    *370:AIX:*:*)
+	echo ibm370-ibm-aix
+	exit 0 ;;
+    ksr1:OSF*1:*:*)
+	echo ksr1-ksr-osf1
+	exit 0 ;;
+    esa:OSF*1:*:* | ESA:OSF*:*:*)
+	echo esa-ibm-osf1
+	exit 0 ;;
+    DNP*:DNIX:*:*)
+	echo m68k-dnix-sysv
+	exit 0 ;;
+    *3b2*:*:*:*)
+	echo we32k-att-sysv3
+	exit 0 ;;
+    *:QNX:*:42*)
+	echo i386-qssl-qnx`echo ${UNAME_VERSION}`
+	exit 0 ;;
+    # end cases added for Bash
+    alpha:OSF1:*:*)
+	if test $UNAME_RELEASE = "V4.0"; then
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+	fi
+	# A Vn.n version is a released version.
+	# A Tn.n version is a released field test version.
+	# A Xn.n version is an unreleased experimental baselevel.
+	# 1.2 uses "1.2" for uname -r.
+	cat <<EOF >dummy.s
+	.globl main
+	.ent main
+main:
+	.frame \$30,0,\$26,0
+	.prologue 0
+	.long 0x47e03d80 # implver $0
+	lda \$2,259
+	.long 0x47e20c21 # amask $2,$1
+	srl \$1,8,\$2
+	sll \$2,2,\$2
+	sll \$0,3,\$0
+	addl \$1,\$0,\$0
+	addl \$2,\$0,\$0
+	ret \$31,(\$26),1
+	.end main
+EOF
+	${CC-cc} dummy.s -o dummy 2>/dev/null
+	if test "$?" = 0 ; then
+		./dummy
+		case "$?" in
+			7)
+				UNAME_MACHINE="alpha"
+				;;
+			15)
+				UNAME_MACHINE="alphaev5"
+				;;
+			14)
+				UNAME_MACHINE="alphaev56"
+				;;
+			10)
+				UNAME_MACHINE="alphapca56"
+				;;
+			16)
+				UNAME_MACHINE="alphaev6"
+				;;
+		esac
+	fi
+	rm -f dummy.s dummy
+	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[VTX]//' | tr [[A-Z]] [[a-z]]`
+	exit 0 ;;
+    21064:Windows_NT:50:3)
+	echo alpha-dec-winnt3.5
+	exit 0 ;;
+    Amiga*:UNIX_System_V:4.0:*)
+	echo m68k-cbm-sysv4
+	exit 0;;
+    amiga:NetBSD:*:*)
+	echo m68k-cbm-netbsd${UNAME_RELEASE}
+	exit 0 ;;
+    amiga:OpenBSD:*:*)
+	echo m68k-cbm-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    arc64:OpenBSD:*:*)
+	echo mips64el-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    arc:OpenBSD:*:*)
+	echo mipsel-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    hkmips:OpenBSD:*:*)
+	echo mips-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    pmax:OpenBSD:*:*)
+	echo mipsel-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    sgi:OpenBSD:*:*)
+	echo mips-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    wgrisc:OpenBSD:*:*)
+	echo mipsel-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+	echo arm-acorn-riscix${UNAME_RELEASE}
+	exit 0;;
+    arm32:NetBSD:*:*)
+	echo arm-unknown-netbsd`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+	exit 0 ;;
+    SR2?01:HI-UX/MPP:*:*)
+	echo hppa1.1-hitachi-hiuxmpp
+	exit 0;;
+    Pyramid*:OSx*:*:*|MIS*:OSx*:*:*)
+	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+	if test "`(/bin/universe) 2>/dev/null`" = att ; then
+		echo pyramid-pyramid-sysv3
+	else
+		echo pyramid-pyramid-bsd
+	fi
+	exit 0 ;;
+    NILE:*:*:dcosx)
+	echo pyramid-pyramid-svr4
+	exit 0 ;;
+    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+	echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit 0 ;;
+    i86pc:SunOS:5.*:*)
+	echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit 0 ;;
+    sun4*:SunOS:6*:*)
+	# According to config.sub, this is the proper way to canonicalize
+	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
+	# it's likely to be more like Solaris than SunOS4.
+	echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit 0 ;;
+    sun4*:SunOS:*:*)
+	case "`/usr/bin/arch -k`" in
+	    Series*|S4*)
+		UNAME_RELEASE=`uname -v`
+		;;
+	esac
+	# Japanese Language versions have a version number like `4.1.3-JL'.
+	echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
+	exit 0 ;;
+    sun3*:SunOS:*:*|sun:SunOS:*:*)
+	echo m68k-sun-sunos${UNAME_RELEASE}
+	exit 0 ;;
+    sun*:*:4.2BSD:*)
+	UNAME_RELEASE=`(head -1 /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+	test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
+	case "`/bin/arch`" in
+	    sun3)
+		echo m68k-sun-sunos${UNAME_RELEASE}
+		;;
+	    sun4)
+		echo sparc-sun-sunos${UNAME_RELEASE}
+		;;
+	esac
+	exit 0 ;;
+    aushp:SunOS:*:*)
+	echo sparc-auspex-sunos${UNAME_RELEASE}
+	exit 0 ;;
+    atari*:NetBSD:*:*)
+	echo m68k-atari-netbsd${UNAME_RELEASE}
+	exit 0 ;;
+    atari*:OpenBSD:*:*)
+	echo m68k-atari-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    sun3*:NetBSD:*:*)
+	echo m68k-sun-netbsd${UNAME_RELEASE}
+	exit 0 ;;
+    sun3*:OpenBSD:*:*)
+	echo m68k-sun-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    mac68k:NetBSD:*:*)
+	echo m68k-apple-netbsd${UNAME_RELEASE}
+	exit 0 ;;
+    mac68k:OpenBSD:*:*)
+	echo m68k-apple-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    mvme68k:OpenBSD:*:*)
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    mvme88k:OpenBSD:*:*)
+	echo m88k-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    Power?Macintosh:Rhapsody:*:*)
+      echo powerpc-apple-nextstep${UNAME_RELEASE}
+      exit 0 ;;
+    *:Rhapsody:*:*)
+      echo ${UNAME_MACHINE}-unknown-nextstep${UNAME_RELEASE}
+      exit 0 ;;
+    powerpc:machten:*:*)
+	echo powerpc-apple-machten${UNAME_RELEASE}
+	exit 0 ;;
+    RISC*:Mach:*:*)
+	echo mips-dec-mach_bsd4.3
+	exit 0 ;;
+    RISC*:ULTRIX:*:*)
+	echo mips-dec-ultrix${UNAME_RELEASE}
+	exit 0 ;;
+    VAX*:ULTRIX*:*:*)
+	echo vax-dec-ultrix${UNAME_RELEASE}
+	exit 0 ;;
+    2020:CLIX:*:*)
+	echo clipper-intergraph-clix${UNAME_RELEASE}
+	exit 0 ;;
+    mips:*:*:UMIPS | mips:*:*:RISCos)
+	sed 's/^	//' << EOF >dummy.c
+	int main (argc, argv) int argc; char **argv; {
+	#if defined (host_mips) && defined (MIPSEB)
+	#if defined (SYSTYPE_SYSV)
+	  printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_SVR4)
+	  printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+	  printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
+	#endif
+	#endif
+	  exit (-1);
+	}
+EOF
+	${CC-cc} dummy.c -o dummy \
+	  && ./dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \
+	  && rm dummy.c dummy && exit 0
+	rm -f dummy.c dummy
+	echo mips-mips-riscos${UNAME_RELEASE}
+	exit 0 ;;
+    Night_Hawk:Power_UNIX:*:*)
+	echo powerpc-harris-powerunix
+	exit 0 ;;
+    m88k:CX/UX:7*:*)
+	echo m88k-harris-cxux7
+	exit 0 ;;
+    m88k:*:4*:R4*)
+	echo m88k-motorola-sysv4
+	exit 0 ;;
+    m88k:*:3*:R3*)
+	echo m88k-motorola-sysv3
+	exit 0 ;;
+    AViiON:dgux:*:*)
+	# DG/UX returns AViiON for all architectures
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	if [ $UNAME_PROCESSOR = mc88100 -o $UNAME_PROCESSOR = mc88110 ] ; then
+	if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx \
+	     -o ${TARGET_BINARY_INTERFACE}x = x ] ; then
+		echo m88k-dg-dgux${UNAME_RELEASE}
+	else
+		echo m88k-dg-dguxbcs${UNAME_RELEASE}
+	fi
+	else echo i586-dg-dgux${UNAME_RELEASE}
+	fi
+ 	exit 0 ;;
+    M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
+	echo m88k-dolphin-sysv3
+	exit 0 ;;
+    M88*:*:R3*:*)
+	# Delta 88k system running SVR3
+	echo m88k-motorola-sysv3
+	exit 0 ;;
+    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+	echo m88k-tektronix-sysv3
+	exit 0 ;;
+    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+	echo m68k-tektronix-bsd
+	exit 0 ;;
+    *:IRIX*:*:*)
+	echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
+	exit 0 ;;
+    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+	echo romp-ibm-aix      # uname -m gives an 8 hex-code CPU id
+	exit 0 ;;              # Note that: echo "'`uname -s`'" gives 'AIX '
+    i?86:AIX:*:*)
+	echo i386-ibm-aix
+	exit 0 ;;
+    *:AIX:2:3)
+	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+		sed 's/^		//' << EOF >dummy.c
+		#include <sys/systemcfg.h>
+
+		main()
+			{
+			if (!__power_pc())
+				exit(1);
+			puts("powerpc-ibm-aix3.2.5");
+			exit(0);
+			}
+EOF
+		${CC-cc} dummy.c -o dummy && ./dummy && rm dummy.c dummy && exit 0
+		rm -f dummy.c dummy
+		echo rs6000-ibm-aix3.2.5
+	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+		echo rs6000-ibm-aix3.2.4
+	else
+		echo rs6000-ibm-aix3.2
+	fi
+	exit 0 ;;
+    *:AIX:*:4)
+	if /usr/sbin/lsattr -EHl proc0 | grep POWER >/dev/null 2>&1; then
+		IBM_ARCH=rs6000
+	else
+		IBM_ARCH=powerpc
+	fi
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	elif grep bos410 /usr/include/stdio.h >/dev/null 2>&1; then
+		IBM_REV=4.1
+	elif grep bos411 /usr/include/stdio.h >/dev/null 2>&1; then
+		IBM_REV=4.1.1
+	else
+		IBM_REV=4.${UNAME_RELEASE}
+	fi
+	echo ${IBM_ARCH}-ibm-aix${IBM_REV}
+	exit 0 ;;
+    *:AIX:*:*)
+	echo rs6000-ibm-aix
+	exit 0 ;;
+    ibmrt:4.4BSD:*|romp-ibm:BSD:*)
+	echo romp-ibm-bsd4.4
+	exit 0 ;;
+    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC NetBSD and
+	echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
+	exit 0 ;;                           # report: romp-ibm BSD 4.3
+    *:BOSX:*:*)
+	echo rs6000-bull-bosx
+	exit 0 ;;
+    DPX/2?00:B.O.S.:*:*)
+	echo m68k-bull-sysv3
+	exit 0 ;;
+    9000/[34]??:4.3bsd:1.*:*)
+	echo m68k-hp-bsd
+	exit 0 ;;
+    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+	echo m68k-hp-bsd4.4
+	exit 0 ;;
+    9000/[34678]??:HP-UX:*:*)
+	case "${UNAME_MACHINE}" in
+	    9000/31? )		HP_ARCH=m68000 ;;
+	    9000/[34]?? )	HP_ARCH=m68k ;;
+	    9000/78? | 9000/80[24] | 9000/8[67]1 | 9000/8[78]9 | 9000/893 )
+				HP_ARCH=hppa2.0 ;;
+	    9000/7?? | 9000/8?[13679] | 9000/892 )
+				HP_ARCH=hppa1.1 ;;
+	    9000/[68]?? )	HP_ARCH=hppa1.0 ;;
+	esac
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+	echo ${HP_ARCH}-hp-hpux${HPUX_REV}
+	exit 0 ;;
+    3050*:HI-UX:*:*)
+	sed 's/^	//' << EOF >dummy.c
+	#include <unistd.h>
+	int
+	main ()
+	{
+	  long cpu = sysconf (_SC_CPU_VERSION);
+	  /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+	     true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
+	     results, however.  */
+	  if (CPU_IS_PA_RISC (cpu))
+	    {
+	      switch (cpu)
+		{
+		  case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+		  default: puts ("hppa-hitachi-hiuxwe2"); break;
+		}
+	    }
+	  else if (CPU_IS_HP_MC68K (cpu))
+	    puts ("m68k-hitachi-hiuxwe2");
+	  else puts ("unknown-hitachi-hiuxwe2");
+	  exit (0);
+	}
+EOF
+	${CC-cc} dummy.c -o dummy && ./dummy && rm dummy.c dummy && exit 0
+	rm -f dummy.c dummy
+	echo unknown-hitachi-hiuxwe2
+	exit 0 ;;
+    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
+	echo hppa1.1-hp-bsd
+	exit 0 ;;
+    9000/8??:4.3bsd:*:*)
+	echo hppa1.0-hp-bsd
+	exit 0 ;;
+    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
+	echo hppa1.1-hp-osf
+	exit 0 ;;
+    hp8??:OSF1:*:*)
+	echo hppa1.0-hp-osf
+	exit 0 ;;
+    i?86:OSF1:*:*)
+	if [ -x /usr/sbin/sysversion ] ; then
+	    echo ${UNAME_MACHINE}-pc-osf1mk
+	else
+	    echo ${UNAME_MACHINE}-pc-osf1
+	fi
+	exit 0 ;;
+    parisc*:Lites*:*:*)
+	echo hppa1.1-hp-lites
+	exit 0 ;;
+    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+	echo c1-convex-bsd
+        exit 0 ;;
+    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+        exit 0 ;;
+    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+	echo c34-convex-bsd
+        exit 0 ;;
+    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+	echo c38-convex-bsd
+        exit 0 ;;
+    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+	echo c4-convex-bsd
+        exit 0 ;;
+    CRAY*X-MP:*:*:*)
+	echo xmp-cray-unicos
+        exit 0 ;;
+    CRAY*Y-MP:*:*:*)
+	echo ymp-cray-unicos${UNAME_RELEASE}
+	exit 0 ;;
+    CRAY*[A-Z]90:*:*:*)
+	echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
+	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
+	exit 0 ;;
+    CRAY*TS:*:*:*)
+	echo t90-cray-unicos${UNAME_RELEASE}
+	exit 0 ;;
+    CRAY-2:*:*:*)
+	echo cray2-cray-unicos
+        exit 0 ;;
+    F300:UNIX_System_V:*:*)
+	FUJITSU_SYS=`uname -p | tr [A-Z] [a-z] | sed -e 's/\///'`
+	FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
+	echo "f300-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit 0 ;;
+    F301:UNIX_System_V:*:*)
+	echo f301-fujitsu-uxpv`echo $UNAME_RELEASE | sed 's/ .*//'`
+	exit 0 ;;
+    hp3[0-9][05]:NetBSD:*:*)
+	echo m68k-hp-netbsd${UNAME_RELEASE}
+	exit 0 ;;
+    hp3[0-9][05]:OpenBSD:*:*)
+	echo m68k-hp-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    i?86:BSD/386:*:* | *:BSD/OS:*:*)
+	echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
+	exit 0 ;;
+    *:FreeBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
+	exit 0 ;;
+    *:NetBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-netbsd`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+	exit 0 ;;
+    *:OpenBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-openbsd`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+	exit 0 ;;
+    i*:CYGWIN*:*)
+	echo i386-pc-cygwin32
+	exit 0 ;;
+    i*:MINGW*:*)
+	echo i386-pc-mingw32
+	exit 0 ;;
+    p*:CYGWIN*:*)
+	echo powerpcle-unknown-cygwin32
+	exit 0 ;;
+    prep*:SunOS:5.*:*)
+	echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit 0 ;;
+    *:GNU:*:*)
+	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+	exit 0 ;;
+    *:Linux:*:*)
+	# The BFD linker knows what the default object file format is, so
+	# first see if it will tell us.
+	ld_help_string=`ld --help 2>&1`
+	ld_supported_emulations=`echo $ld_help_string \
+			 | sed -ne '/supported emulations:/!d
+				    s/[ 	][ 	]*/ /g
+				    s/.*supported emulations: *//
+				    s/ .*//
+				    p'`
+	case "$ld_supported_emulations" in
+	  i?86linux)  echo "${UNAME_MACHINE}-pc-linux-gnuaout"      ; exit 0 ;;
+	  i?86coff)   echo "${UNAME_MACHINE}-pc-linux-gnucoff"      ; exit 0 ;;
+	  sparclinux) echo "${UNAME_MACHINE}-unknown-linux-gnuaout" ; exit 0 ;;
+	  m68klinux)  echo "${UNAME_MACHINE}-unknown-linux-gnuaout" ; exit 0 ;;
+	  elf32ppc)   echo "powerpc-unknown-linux-gnu"              ; exit 0 ;;
+	esac
+
+	if test "${UNAME_MACHINE}" = "alpha" ; then
+		sed 's/^	//'  <<EOF >dummy.s
+		.globl main
+		.ent main
+	main:
+		.frame \$30,0,\$26,0
+		.prologue 0
+		.long 0x47e03d80 # implver $0
+		lda \$2,259
+		.long 0x47e20c21 # amask $2,$1
+		srl \$1,8,\$2
+		sll \$2,2,\$2
+		sll \$0,3,\$0
+		addl \$1,\$0,\$0
+		addl \$2,\$0,\$0
+		ret \$31,(\$26),1
+		.end main
+EOF
+		LIBC=""
+		${CC-cc} dummy.s -o dummy 2>/dev/null
+		if test "$?" = 0 ; then
+			./dummy
+			case "$?" in
+			7)
+				UNAME_MACHINE="alpha"
+				;;
+			15)
+				UNAME_MACHINE="alphaev5"
+				;;
+			14)
+				UNAME_MACHINE="alphaev56"
+				;;
+			10)
+				UNAME_MACHINE="alphapca56"
+				;;
+			16)
+				UNAME_MACHINE="alphaev6"
+				;;
+			esac
+
+			objdump --private-headers dummy | \
+			  grep ld.so.1 > /dev/null
+			if test "$?" = 0 ; then
+				LIBC="libc1"
+			fi
+		fi
+		rm -f dummy.s dummy
+		echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC} ; exit 0
+	elif test "${UNAME_MACHINE}" = "mips" ; then
+	  cat >dummy.c <<EOF
+main(argc, argv)
+     int argc;
+     char *argv[];
+{
+#ifdef __MIPSEB__
+  printf ("%s-unknown-linux-gnu\n", argv[1]);
+#endif
+#ifdef __MIPSEL__
+  printf ("%sel-unknown-linux-gnu\n", argv[1]);
+#endif
+  return 0;
+}
+EOF
+	  ${CC-cc} dummy.c -o dummy 2>/dev/null && ./dummy "${UNAME_MACHINE}" && rm dummy.c dummy && exit 0
+	  rm -f dummy.c dummy
+	else
+	  # Either a pre-BFD a.out linker (linux-gnuoldld)
+	  # or one that does not give us useful --help.
+	  # GCC wants to distinguish between linux-gnuoldld and linux-gnuaout.
+	  # If ld does not provide *any* "supported emulations:"
+	  # that means it is gnuoldld.
+	  echo "$ld_help_string" | grep >/dev/null 2>&1 "supported emulations:"
+	  test $? != 0 && echo "${UNAME_MACHINE}-pc-linux-gnuoldld" && exit 0
+
+	  case "${UNAME_MACHINE}" in
+	  i?86)
+	    VENDOR=pc;
+	    ;;
+	  *)
+	    VENDOR=unknown;
+	    ;;
+	  esac
+	  # Determine whether the default compiler is a.out or elf
+	  cat >dummy.c <<EOF
+#include <features.h>
+main(argc, argv)
+     int argc;
+     char *argv[];
+{
+#ifdef __ELF__
+# ifdef __GLIBC__
+#  if __GLIBC__ >= 2
+    printf ("%s-${VENDOR}-linux-gnu\n", argv[1]);
+#  else
+    printf ("%s-${VENDOR}-linux-gnulibc1\n", argv[1]);
+#  endif
+# else
+   printf ("%s-${VENDOR}-linux-gnulibc1\n", argv[1]);
+# endif
+#else
+  printf ("%s-${VENDOR}-linux-gnuaout\n", argv[1]);
+#endif
+  return 0;
+}
+EOF
+	  ${CC-cc} dummy.c -o dummy 2>/dev/null && ./dummy "${UNAME_MACHINE}" && rm dummy.c dummy && exit 0
+	  rm -f dummy.c dummy
+	fi ;;
+# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.  earlier versions
+# are messed up and put the nodename in both sysname and nodename.
+    i?86:DYNIX/ptx:4*:*)
+	echo i386-sequent-sysv4
+	exit 0 ;;
+    i?86:UNIX_SV:4.2MP:2.*)
+	# Unixware is an offshoot of SVR4, but it has its own version
+	# number series starting with 2...
+	# I am not positive that other SVR4 systems won't match this,
+	# I just have to hope.  -- rms.
+	# Use sysv4.2uw... so that sysv4* matches it.
+	echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
+	exit 0 ;;
+    i?86:*:4.*:* | i?86:SYSTEM_V:4.*:* | i?86:UNIX_SV:4.*:*)
+	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+		echo ${UNAME_MACHINE}-univel-sysv${UNAME_RELEASE}
+	else
+		echo ${UNAME_MACHINE}-pc-sysv${UNAME_RELEASE}
+	fi
+	exit 0 ;;
+    i?86:*:3.2:*)
+	if test -f /usr/options/cb.name; then
+		UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
+		echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
+	elif /bin/uname -X 2>/dev/null >/dev/null ; then
+		UNAME_REL=`(/bin/uname -X|egrep Release|sed -e 's/.*= //')`
+		(/bin/uname -X|egrep i80486 >/dev/null) && UNAME_MACHINE=i486
+		(/bin/uname -X|egrep '^Machine.*Pentium' >/dev/null) \
+			&& UNAME_MACHINE=i586
+		echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
+	else
+		echo ${UNAME_MACHINE}-pc-sysv32
+	fi
+	exit 0 ;;
+    pc:*:*:*)
+	# uname -m prints for DJGPP always 'pc', but it prints nothing about
+	# the processor, so we play safe by assuming i386.
+	echo i386-pc-msdosdjgpp
+	exit 0 ;;
+    Intel:Mach:3*:*)
+	echo i386-pc-mach3
+	exit 0 ;;
+    paragon:*:*:*)
+	echo i860-intel-osf1
+	exit 0 ;;
+    i860:*:4.*:*) # i860-SVR4
+	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+	  echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
+	else # Add other i860-SVR4 vendors below as they are discovered.
+	  echo i860-unknown-sysv${UNAME_RELEASE}  # Unknown i860-SVR4
+	fi
+	exit 0 ;;
+    mini*:CTIX:SYS*5:*)
+	# "miniframe"
+	echo m68010-convergent-sysv
+	exit 0 ;;
+    M68*:*:R3V[567]*:*)
+	test -r /sysV68 && echo 'm68k-motorola-sysv' && exit 0 ;;
+    3[34]??:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 4850:*:4.0:3.0)
+	OS_REL=''
+	test -r /etc/.relid \
+	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && echo i486-ncr-sysv4.3${OS_REL} && exit 0
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	  && echo i586-ncr-sysv4.3${OS_REL} && exit 0 ;;
+    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && echo i486-ncr-sysv4 && exit 0 ;;
+    mc68030:UNIX_System_V:4.*:*)
+	echo m68k-atari-sysv4
+	exit 0 ;;
+    m68*:LynxOS:2.*:*)
+	echo m68k-unknown-lynxos${UNAME_RELEASE}
+	exit 0 ;;
+    i?86:LynxOS:2.*:*)
+	echo i386-pc-lynxos${UNAME_RELEASE}
+	exit 0 ;;
+    TSUNAMI:LynxOS:2.*:*)
+	echo sparc-unknown-lynxos${UNAME_RELEASE}
+	exit 0 ;;
+    rs6000:LynxOS:2.*:* | PowerPC:LynxOS:2.*:*)
+	echo rs6000-unknown-lynxos${UNAME_RELEASE}
+	exit 0 ;;
+    *:LynxOS:*:*)
+	echo ${UNAME_MACHINE}-unknown-lynxos${UNAME_RELEASE}
+	exit 0 ;;
+    SM[BE]S:UNIX_SV:*:*)
+	echo mips-dde-sysv${UNAME_RELEASE}
+	exit 0 ;;
+    RM*:SINIX-*:*:* | RM*:ReliantUNIX-*:*:*)
+	echo mips-sni-sysv4
+	exit 0 ;;
+    *:SINIX-*:*:*)
+	if uname -p 2>/dev/null >/dev/null ; then
+		UNAME_MACHINE=`(uname -p) 2>/dev/null`
+		echo ${UNAME_MACHINE}-sni-sysv4
+	else
+		echo ns32k-sni-sysv
+	fi
+	exit 0 ;;
+    PENTIUM:CPunix:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+			   # says <Richard.M.Bartel@ccMail.Census.GOV>
+	echo i586-unisys-sysv4
+	exit 0 ;;
+    *:UNIX_System_V:4*:FTX*)
+	# From Gerald Hewes <hewes@openmarket.com>.
+	# How about differentiating between stratus architectures? -djm
+	echo hppa1.1-stratus-sysv4
+	exit 0 ;;
+    *:*:*:FTX*)
+	# From seanf@swdc.stratus.com.
+	echo i860-stratus-sysv4
+	exit 0 ;;              
+    mc68*:A/UX:*:*)
+	echo m68k-apple-aux${UNAME_RELEASE}
+	exit 0 ;;
+    news*:NEWS-OS:*:6*)
+	echo mips-sony-newsos6
+	exit 0 ;;
+    R3000:*System_V*:*:* | R4000:UNIX_SYSV:*:*)
+	if [ -d /usr/nec ]; then
+		echo mips-nec-sysv${UNAME_RELEASE}
+	else
+		echo mips-unknown-sysv${UNAME_RELEASE}
+	fi
+	exit 0 ;;
+    PENTIUM:CPunix:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+                           # says <Richard.M.Bartel@ccMail.Census.GOV>
+	echo i586-unisys-sysv4 
+	exit 0 ;;              
+esac
+
+#echo '(No uname command or uname output not recognized.)' 1>&2
+#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
+
+cat >dummy.c <<EOF
+#ifdef _SEQUENT_
+# include <sys/types.h>
+# include <sys/utsname.h>
+#endif
+main ()
+{
+#if defined (sony)
+#if defined (MIPSEB)
+  /* BFD wants "bsd" instead of "newsos".  Perhaps BFD should be changed,
+     I don't know....  */
+  printf ("mips-sony-bsd\n"); exit (0);
+#else
+#include <sys/param.h>
+  printf ("m68k-sony-newsos%s\n",
+#ifdef NEWSOS4
+          "4"
+#else
+	  ""
+#endif
+         ); exit (0);
+#endif
+#endif
+
+#if defined (__arm) && defined (__acorn) && defined (__unix)
+  printf ("arm-acorn-riscix\n"); exit (0);
+#endif
+
+#if defined (hp9000) && !defined (hpux)
+  printf ("m68k-hp-bsd\n"); exit (0);
+#endif
+
+#if defined (hp300) && !defined (hpux)
+  printf ("m68k-hp-bsd\n"); exit (0);
+#endif
+
+#if defined (NeXT)
+#if !defined (__ARCHITECTURE__)
+#define __ARCHITECTURE__ "m68k"
+#endif
+  int version;
+  version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
+  printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
+  exit (0);
+#endif
+
+#if defined (MULTIMAX) || defined (n16)
+#if defined (UMAXV)
+  printf ("ns32k-encore-sysv\n"); exit (0);
+#else
+#if defined (CMU)
+  printf ("ns32k-encore-mach\n"); exit (0);
+#else
+  printf ("ns32k-encore-bsd\n"); exit (0);
+#endif
+#endif
+#endif
+
+#if defined (__386BSD__)
+  printf ("i386-pc-bsd\n"); exit (0);
+#endif
+
+#if defined (sequent)
+#if defined (i386)
+  printf ("i386-sequent-dynix\n"); exit (0);
+#endif
+#if defined (ns32000)
+  printf ("ns32k-sequent-dynix\n"); exit (0);
+#endif
+#endif
+
+#if defined (_SEQUENT_)
+    struct utsname un;
+
+    uname(&un);
+
+    if (strncmp(un.version, "V2", 2) == 0) {
+	printf ("i386-sequent-ptx2\n"); exit (0);
+    }
+    if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
+	printf ("i386-sequent-ptx1\n"); exit (0);
+    }
+    printf ("i386-sequent-ptx\n"); exit (0);
+
+#endif
+
+#if defined (vax)
+#if !defined (ultrix)
+  printf ("vax-dec-bsd\n"); exit (0);
+#else
+  printf ("vax-dec-ultrix\n"); exit (0);
+#endif
+#endif
+
+#if defined (alliant) && defined (i860)
+  printf ("i860-alliant-bsd\n"); exit (0);
+#endif
+
+/* Begin cases added for Bash */
+#if defined (tahoe)
+  printf ("tahoe-cci-bsd\n"); exit (0);
+#endif
+
+#if defined (nec_ews)
+#  if defined (SYSTYPE_SYSV)
+  printf ("ews4800-nec-sysv4\n"); exit 0;
+#  else
+  printf ("ews4800-nec-bsd\n"); exit (0);
+#  endif
+#endif
+
+#if defined (sony)
+#  if defined (SYSTYPE_SYSV)
+  printf ("mips-sony-sysv4\n"); exit 0;
+#  else
+  printf ("mips-sony-bsd\n"); exit (0);
+#  endif
+#endif
+
+#if defined (ardent)
+  printf ("titan-ardent-bsd\n"); exit (0);
+#endif
+
+#if defined (stardent)
+  printf ("stardent-stardent-sysv\n"); exit (0);
+#endif
+
+#if defined (ibm032)
+  printf ("ibmrt-ibm-bsd4.3\n"); exit (0);
+#endif
+
+#if defined (sequent) && defined (i386)
+  printf ("i386-sequent-bsd\n"); exit (0);
+#endif
+
+#if defined (qnx) && defined (i386)
+  printf ("i386-pc-qnx\n"); exit (0);
+#endif
+
+#if defined (gould)
+  printf ("gould-gould-bsd\n"); exit (0);
+#endif
+
+#if defined (unixpc)
+  printf ("unixpc-att-sysv\n"); exit (0);
+#endif
+
+#if defined (att386)
+  printf ("i386-att-sysv3\n"); exit (0);
+#endif
+
+#if defined (__m88k) && defined (__UMAXV__)
+  printf ("m88k-encore-sysv3\n"); exit (0);
+#endif
+
+#if defined (drs6000)
+  printf ("drs6000-icl-sysv4.2\n"); exit (0);
+#endif
+
+#if defined (clipper)
+  printf ("clipper-orion-bsd\n"); exit (0);
+#endif
+
+#if defined (is68k)
+  printf ("m68k-isi-bsd\n"); exit (0);
+#endif
+
+#if defined (luna88k)
+  printf ("luna88k-omron-bsd\n"); exit (0);
+#endif
+
+#if defined (butterfly) && defined (BFLY1)
+  printf ("butterfly-bbn-mach\n"); exit (0);
+#endif
+
+#if defined (tower32)
+  printf ("tower32-ncr-sysv4\n"); exit (0);
+#endif
+
+#if defined (MagicStation)
+  printf ("magicstation-unknown-bsd\n"); exit (0);
+#endif
+
+#if defined (scs)
+  printf ("symmetric-scs-bsd4.2\n"); exit (0);
+#endif
+
+#if defined (tandem)
+  printf ("tandem-tandem-sysv\n"); exit (0);
+#endif
+
+#if defined (cadmus)
+  printf ("cadmus-pcs-sysv\n"); exit (0);
+#endif
+
+#if defined (masscomp)
+  printf ("masscomp-masscomp-sysv3\n"); exit (0);
+#endif
+
+#if defined (hbullx20)
+  printf ("hbullx20-bull-sysv3\n"); exit (0);
+#endif
+
+/* End cases added for Bash */
+
+  exit (1);
+}
+EOF
+
+${CC-cc} dummy.c -o dummy 2>/dev/null && ./dummy && rm dummy.c dummy && exit 0
+rm -f dummy.c dummy
+
+# Apollos put the system type in the environment.
+
+test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit 0; }
+
+# Convex versions that predate uname can use getsysinfo(1)
+
+if [ -x /usr/convex/getsysinfo ]
+then
+    case `getsysinfo -f cpu_type` in
+    c1*)
+	echo c1-convex-bsd
+	exit 0 ;;
+    c2*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit 0 ;;
+    c34*)
+	echo c34-convex-bsd
+	exit 0 ;;
+    c38*)
+	echo c38-convex-bsd
+	exit 0 ;;
+    c4*)
+	echo c4-convex-bsd
+	exit 0 ;;
+    esac
+fi
+
+# Begin cases added for Bash
+case "$UNAME" in
+uts) echo uts-amdahl-sysv${UNAME_RELEASE}; exit 0 ;;
+esac
+
+if [ -d /usr/amiga ]; then
+	echo m68k-cbm-sysv${UNAME_RELEASE}; exit 0;
+fi
+
+if [ -f /bin/fxc.info ]; then
+	echo fxc-alliant-concentrix
+	exit 0
+fi
+# end cases added for Bash
+
+#echo '(Unable to guess system type)' 1>&2
+
+exit 1
diff --git a/readline/support/config.sub b/readline/support/config.sub
new file mode 100755
index 00000000000..7541a125fa6
--- /dev/null
+++ b/readline/support/config.sub
@@ -0,0 +1,945 @@
+#! /bin/sh
+# Configuration validation subroutine script, version 1.1.
+#   Copyright (C) 1991, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
+# This file is (in principle) common to ALL GNU software.
+# The presence of a machine in this file suggests that SOME GNU software
+# can handle that machine.  It does not imply ALL GNU software can.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support.  The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+if [ x$1 = x ]
+then
+	echo Configuration name missing. 1>&2
+	echo "Usage: $0 CPU-MFR-OPSYS" 1>&2
+	echo "or     $0 ALIAS" 1>&2
+	echo where ALIAS is a recognized configuration type. 1>&2
+	exit 1
+fi
+
+# First pass through any local machine types.
+case $1 in
+	*local*)
+		echo $1
+		exit 0
+		;;
+	*)
+	;;
+esac
+
+# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
+# Here we must recognize all the valid KERNEL-OS combinations.
+maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+case $maybe_os in
+  linux-gnu*)
+    os=-$maybe_os
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
+    ;;
+  *)
+    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
+    if [ $basic_machine != $1 ]
+    then os=`echo $1 | sed 's/.*-/-/'`
+    else os=; fi
+    ;;
+esac
+
+### Let's recognize common machines as not being operating systems so
+### that things like config.sub decstation-3100 work.  We also
+### recognize some manufacturers as not being operating systems, so we
+### can provide default operating systems below.
+case $os in
+	-sun*os*)
+		# Prevent following clause from handling this invalid input.
+		;;
+	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
+	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
+	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
+	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
+	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
+	-apple)
+		os=
+		basic_machine=$1
+		;;
+	-hiux*)
+		os=-hiuxwe2
+		;;
+	-sco5)
+		os=sco3.2v5
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco4)
+		os=-sco3.2v4
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2.[4-9]*)
+		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2v[4-9]*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco*)
+		os=-sco3.2v2
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-isc)
+		os=-isc2.2
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-clix*)
+		basic_machine=clipper-intergraph
+		;;
+	-isc*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-lynx*)
+		os=-lynxos
+		;;
+	-ptx*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
+		;;
+	-windowsnt*)
+		os=`echo $os | sed -e 's/windowsnt/winnt/'`
+		;;
+	-psos*)
+		os=-psos
+		;;
+esac
+
+# Decode aliases for certain CPU-COMPANY combinations.
+case $basic_machine in
+	# Recognize the basic CPU types without company name.
+	# Some are omitted here because they have special meanings below.
+	tahoe | i860 | m68k | m68000 | m88k | ns32k | arm \
+		| arme[lb] | pyramid \
+		| tron | a29k | 580 | i960 | h8300 | hppa | hppa1.0 | hppa1.1 \
+		| hppa2.0 | alpha | we32k | ns16k | clipper | i370 | sh \
+		| powerpc | powerpcle | 1750a | dsp16xx | mips64 | mipsel \
+		| pdp11 | mips64el | mips64orion | mips64orionel \
+		| sparc | sparclet | sparclite | sparc64)
+		basic_machine=$basic_machine-unknown
+		;;
+	# We use `pc' rather than `unknown'
+	# because (1) that's what they normally are, and
+	# (2) the word "unknown" tends to confuse beginning users.
+	i[3456]86)
+	  basic_machine=$basic_machine-pc
+	  ;;
+	# Object if more than one company name word.
+	*-*-*)
+		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		exit 1
+		;;
+	# Recognize the basic CPU types with company name.
+	vax-* | tahoe-* | i[3456]86-* | i860-* | m68k-* | m68000-* | m88k-* \
+	      | sparc-* | ns32k-* | fx80-* | arm-* | c[123]* \
+	      | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* | power-* \
+	      | none-* | 580-* | cray2-* | h8300-* | i960-* | xmp-* | ymp-* \
+	      | hppa-* | hppa1.0-* | hppa1.1-* | hppa2.0-* \
+	      | alpha-* | we32k-* | cydra-* | ns16k-* \
+	      | pn-* | np1-* | xps100-* | clipper-* | orion-* | sparclite-* \
+	      | pdp11-* | sh-* | powerpc-* | powerpcle-* | sparc64-* | mips64-* | mipsel-* \
+	      | mips64el-* | mips64orion-* | mips64orionel-* | f301-* \
+	      | butterfly-bbn* \
+	      | cadmus-* | ews*-nec | ibmrt-ibm* | masscomp-masscomp \
+	      | tandem-* | symmetric-* | drs6000-icl | *-*ardent | gould-gould \
+	      | concurrent-* | ksr1-* | esa-ibm | fxc-alliant | *370-amdahl \
+	      | *-convex)
+		;;
+	# Recognize the various machine names and aliases which stand
+	# for a CPU type and a company and sometimes even an OS.
+	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+		basic_machine=m68000-att
+		;;
+	3b*)
+		basic_machine=we32k-att
+		;;
+	alliant | fx80)
+		basic_machine=fx80-alliant
+		;;
+	altos | altos3068)
+		basic_machine=m68k-altos
+		;;
+	am29k)
+		basic_machine=a29k-none
+		os=-bsd
+		;;
+	amdahl)
+		basic_machine=580-amdahl
+		os=-sysv
+		;;
+	amiga | amiga-*)
+		basic_machine=m68k-cbm
+		;;
+	amigados)
+		basic_machine=m68k-cbm
+		os=-amigados
+		;;
+	amigaunix | amix)
+		basic_machine=m68k-cbm
+		os=-sysv4
+		;;
+	apollo68)
+		basic_machine=m68k-apollo
+		os=-sysv
+		;;
+	aux)
+		basic_machine=m68k-apple
+		os=-aux
+		;;
+	balance)
+		basic_machine=ns32k-sequent
+		os=-dynix
+		;;
+	convex-c1)
+		basic_machine=c1-convex
+		os=-bsd
+		;;
+	convex-c2)
+		basic_machine=c2-convex
+		os=-bsd
+		;;
+	convex-c32)
+		basic_machine=c32-convex
+		os=-bsd
+		;;
+	convex-c34)
+		basic_machine=c34-convex
+		os=-bsd
+		;;
+	convex-c38)
+		basic_machine=c38-convex
+		os=-bsd
+		;;
+	cray | ymp)
+		basic_machine=ymp-cray
+		os=-unicos
+		;;
+	cray2)
+		basic_machine=cray2-cray
+		os=-unicos
+		;;
+	[ctj]90-cray)
+		basic_machine=c90-cray
+		os=-unicos
+		;;
+	crds | unos)
+		basic_machine=m68k-crds
+		;;
+	da30 | da30-*)
+		basic_machine=m68k-da30
+		;;
+	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
+		basic_machine=mips-dec
+		;;
+	delta | 3300 | motorola-3300 | motorola-delta \
+	      | 3300-motorola | delta-motorola)
+		basic_machine=m68k-motorola
+		;;
+	delta88)
+		basic_machine=m88k-motorola
+		os=-sysv3
+		;;
+	dpx20 | dpx20-*)
+		basic_machine=rs6000-bull
+		os=-bosx
+		;;
+	dpx2* | dpx2*-bull)
+		basic_machine=m68k-bull
+		os=-sysv3
+		;;
+	hbullx20-bull)
+		basic_machine=m68k-bull
+		;;
+	ebmon29k)
+		basic_machine=a29k-amd
+		os=-ebmon
+		;;
+	elxsi)
+		basic_machine=elxsi-elxsi
+		os=-bsd
+		;;
+	encore | umax | mmax | multimax)
+		basic_machine=ns32k-encore
+		;;
+	fx2800)
+		basic_machine=i860-alliant
+		;;
+	genix)
+		basic_machine=ns32k-ns
+		;;
+	gmicro)
+		basic_machine=tron-gmicro
+		os=-sysv
+		;;
+	h3050r* | hiux*)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	h8300hms)
+		basic_machine=h8300-hitachi
+		os=-hms
+		;;
+	harris)
+		basic_machine=m88k-harris
+		os=-sysv3
+		;;
+	hp300-*)
+		basic_machine=m68k-hp
+		;;
+	hp300bsd)
+		basic_machine=m68k-hp
+		os=-bsd
+		;;
+	hp300hpux)
+		basic_machine=m68k-hp
+		os=-hpux
+		;;
+	hp9k2[0-9][0-9] | hp9k31[0-9])
+		basic_machine=m68000-hp
+		;;
+	hp9k3[2-9][0-9])
+		basic_machine=m68k-hp
+		;;
+	hp9k7[0-9][0-9] | hp7[0-9][0-9] | hp9k8[0-9]7 | hp8[0-9]7)
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][0-9] | hp8[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hppa-next)
+		os=-nextstep3
+		;;
+	ibm032-*)
+		basic_machine=ibmrt-ibm
+		;;
+	i370-ibm* | ibm*)
+		basic_machine=i370-ibm
+		os=-mvs
+		;;
+# I'm not sure what "Sysv32" means.  Should this be sysv3.2?
+	i[3456]86v32)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv32
+		;;
+	i[3456]86v4*)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv4
+		;;
+	i[3456]86v)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv
+		;;
+	i[3456]86sol2)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-solaris2
+		;;
+	iris | iris4d)
+		basic_machine=mips-sgi
+		case $os in
+		    -irix*)
+			;;
+		    *)
+			os=-irix4
+			;;
+		esac
+		;;
+	isi68 | isi)
+		basic_machine=m68k-isi
+		os=-sysv
+		;;
+	luna88k-omron* | m88k-omron*)
+		basic_machine=m88k-omron
+		;;
+	magicstation*)
+		basic_machine=magicstation-unknown
+		;;
+	magnum | m3230)
+		basic_machine=mips-mips
+		os=-sysv
+		;;
+	merlin)
+		basic_machine=ns32k-utek
+		os=-sysv
+		;;
+	miniframe)
+		basic_machine=m68000-convergent
+		;;
+	mips3*-*)
+		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
+		;;
+	mips3*)
+		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
+		;;
+	ncr3000)
+		basic_machine=i486-ncr
+		os=-sysv4
+		;;
+	news | news700 | news800 | news900)
+		basic_machine=m68k-sony
+		os=-newsos
+		;;
+	news1000)
+		basic_machine=m68030-sony
+		os=-newsos
+		;;
+	news-3600 | risc-news)
+		basic_machine=mips-sony
+		os=-newsos
+		;;
+	next | m*-next )
+		basic_machine=m68k-next
+		case $os in
+		    -nextstep* )
+			;;
+		    -ns2*)
+		      os=-nextstep2
+			;;
+		    *)
+		      os=-nextstep3
+			;;
+		esac
+		;;
+	nh3000)
+		basic_machine=m68k-harris
+		os=-cxux
+		;;
+	nh[45]000)
+		basic_machine=m88k-harris
+		os=-cxux
+		;;
+	nindy960)
+		basic_machine=i960-intel
+		os=-nindy
+		;;
+	np1)
+		basic_machine=np1-gould
+		;;
+	pa-hitachi)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	paragon)
+		basic_machine=i860-intel
+		os=-osf
+		;;
+	pbd)
+		basic_machine=sparc-tti
+		;;
+	pbb)
+		basic_machine=m68k-tti
+		;;
+        pc532 | pc532-*)
+		basic_machine=ns32k-pc532
+		;;
+	pentium | p5)
+		basic_machine=i586-intel
+		;;
+	pentiumpro | p6)
+		basic_machine=i686-intel
+		;;
+	pentium-* | p5-*)
+		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentiumpro-* | p6-*)
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	k5)
+		# We don't have specific support for AMD's K5 yet, so just call it a Pentium
+		basic_machine=i586-amd
+		;;
+	nexen)
+		# We don't have specific support for Nexgen yet, so just call it a Pentium
+		basic_machine=i586-nexgen
+		;;
+	pn)
+		basic_machine=pn-gould
+		;;
+	power)	basic_machine=rs6000-ibm
+		;;
+	ppc)	basic_machine=powerpc-unknown
+	        ;;
+	ppc-*)	basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppcle | powerpclittle | ppc-le | powerpc-little)
+		basic_machine=powerpcle-unknown
+	        ;;
+	ppcle-* | powerpclittle-*)
+		basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ps2)
+		basic_machine=i386-ibm
+		;;
+	rm[46]00)
+		basic_machine=mips-siemens
+		;;
+	rtpc | rtpc-*)
+		basic_machine=romp-ibm
+		;;
+	sequent)
+		basic_machine=i386-sequent
+		;;
+	sh)
+		basic_machine=sh-hitachi
+		os=-hms
+		;;
+	sps7)
+		basic_machine=m68k-bull
+		os=-sysv2
+		;;
+	spur)
+		basic_machine=spur-unknown
+		;;
+	sun2)
+		basic_machine=m68000-sun
+		;;
+	sun2os3)
+		basic_machine=m68000-sun
+		os=-sunos3
+		;;
+	sun2os4)
+		basic_machine=m68000-sun
+		os=-sunos4
+		;;
+	sun3os3)
+		basic_machine=m68k-sun
+		os=-sunos3
+		;;
+	sun3os4)
+		basic_machine=m68k-sun
+		os=-sunos4
+		;;
+	sun4os3)
+		basic_machine=sparc-sun
+		os=-sunos3
+		;;
+	sun4os4)
+		basic_machine=sparc-sun
+		os=-sunos4
+		;;
+	sun4sol2)
+		basic_machine=sparc-sun
+		os=-solaris2
+		;;
+	sun3 | sun3-*)
+		basic_machine=m68k-sun
+		;;
+	sun4)
+		basic_machine=sparc-sun
+		;;
+	sun386 | sun386i | roadrunner)
+		basic_machine=i386-sun
+		;;
+	symmetry)
+		basic_machine=i386-sequent
+		os=-dynix
+		;;
+	tower | tower-32)
+		basic_machine=m68k-ncr
+		;;
+	udi29k)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	ultra3)
+		basic_machine=a29k-nyu
+		os=-sym1
+		;;
+	vaxv)
+		basic_machine=vax-dec
+		os=-sysv
+		;;
+	vms)
+		basic_machine=vax-dec
+		os=-vms
+		;;
+	vpp*|vx|vx-*)
+		basic_machine=f301-fujitsu
+		;;
+	vxworks960)
+		basic_machine=i960-wrs
+		os=-vxworks
+		;;
+	vxworks68)
+		basic_machine=m68k-wrs
+		os=-vxworks
+		;;
+	vxworks29k)
+		basic_machine=a29k-wrs
+		os=-vxworks
+		;;
+	xmp)
+		basic_machine=xmp-cray
+		os=-unicos
+		;;
+        xps | xps100)
+		basic_machine=xps100-honeywell
+		;;
+	none)
+		basic_machine=none-none
+		os=-none
+		;;
+
+# Here we handle the default manufacturer of certain CPU types.  It is in
+# some cases the only manufacturer, in others, it is the most popular.
+	mips)
+		basic_machine=mips-mips
+		;;
+	romp)
+		basic_machine=romp-ibm
+		;;
+	rs6000)
+		basic_machine=rs6000-ibm
+		;;
+	vax)
+		basic_machine=vax-dec
+		;;
+	pdp11)
+		basic_machine=pdp11-dec
+		;;
+	we32k)
+		basic_machine=we32k-att
+		;;
+	sparc)
+		basic_machine=sparc-sun
+		;;
+        cydra)
+		basic_machine=cydra-cydrome
+		;;
+	orion)
+		basic_machine=orion-highlevel
+		;;
+	orion105)
+		basic_machine=clipper-highlevel
+		;;
+	*)
+		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		exit 1
+		;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $basic_machine in
+	*-digital*)
+		basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
+		;;
+	*-commodore*)
+		basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
+		;;
+	*)
+		;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ x"$os" != x"" ]
+then
+case $os in
+	# First match some system type aliases
+	# that might get confused with valid system types.
+	# -solaris* is a basic system type, with this one exception.
+	-solaris1 | -solaris1.*)
+		os=`echo $os | sed -e 's|solaris1|sunos4|'`
+		;;
+	-solaris)
+		os=-solaris2
+		;;
+	-unixware* | svr4*)
+		os=-sysv4
+		;;
+	-gnu/linux*)
+		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
+		;;
+	# First accept the basic system types.
+	# The portable systems comes first.
+	# Each alternative MUST END IN A *, to match a version number.
+	# -sysv* is not here because it comes later, after sysvr4.
+	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\
+	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
+	      | -amigados* | -msdos* | -newsos* | -unicos* | -aof* | -aos* \
+	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
+	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
+	      | -hiux* | -386bsd* | -netbsd* | -openbsd* | -freebsd* | -riscix* \
+	      | -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* \
+	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
+	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+	      | -cygwin32* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -linux-gnu* | -uxpv* | -qnx* | -powerux)
+	# Remember, each alternative MUST END IN *, to match a version number.
+		;;
+	-linux*)
+		os=`echo $os | sed -e 's|linux|linux-gnu|'`
+		;;
+	-sunos5*)
+		os=`echo $os | sed -e 's|sunos5|solaris2|'`
+		;;
+	-sunos6*)
+		os=`echo $os | sed -e 's|sunos6|solaris3|'`
+		;;
+	-osfrose*)
+		os=-osfrose
+		;;
+	-osf*)
+		os=-osf
+		;;
+	-utek*)
+		os=-bsd
+		;;
+	-dynix*)
+		os=-bsd
+		;;
+	-acis*)
+		os=-aos
+		;;
+	-ctix* | -uts*)
+		os=-sysv
+		;;
+	-ns2 )
+	        os=-nextstep2
+		;;
+	# Preserve the version number of sinix5.
+	-sinix5.*)
+		os=`echo $os | sed -e 's|sinix|sysv|'`
+		;;
+	-sinix*)
+		os=-sysv4
+		;;
+	-triton*)
+		os=-sysv3
+		;;
+	-oss*)
+		os=-sysv3
+		;;
+	-svr4)
+		os=-sysv4
+		;;
+	-svr3)
+		os=-sysv3
+		;;
+	-sysvr4)
+		os=-sysv4
+		;;
+	# This must come after -sysvr4.
+	-sysv*)
+		;;
+	-xenix)
+		os=-xenix
+		;;
+	-none)
+		;;
+	*)
+		# Get rid of the `-' at the beginning of $os.
+		os=`echo $os | sed 's/[^-]*-//'`
+		echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
+		exit 1
+		;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+
+# Note that if you're going to try to match "-MANUFACTURER" here (say,
+# "-sun"), then you have to tell the case statement up towards the top
+# that MANUFACTURER isn't an operating system.  Otherwise, code above
+# will signal an error saying that MANUFACTURER isn't an operating
+# system, and we'll never get to this point.
+
+case $basic_machine in
+	*-acorn)
+		os=-riscix1.2
+		;;
+	arm*-semi)
+		os=-aout
+		;;
+        pdp11-*)
+		os=-none
+		;;
+	*-dec | vax-*)
+		os=-ultrix4.2
+		;;
+	m68*-apollo)
+		os=-domain
+		;;
+	i386-sun)
+		os=-sunos4.0.2
+		;;
+	m68000-sun)
+		os=-sunos3
+		# This also exists in the configure program, but was not the
+		# default.
+		# os=-sunos4
+		;;
+	*-tti)	# must be before sparc entry or we get the wrong os.
+		os=-sysv3
+		;;
+	sparc-* | *-sun)
+		os=-sunos4.1.1
+		;;
+	*-ibm)
+		os=-aix
+		;;
+	*-hp)
+		os=-hpux
+		;;
+	*-hitachi)
+		os=-hiux
+		;;
+	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+		os=-sysv
+		;;
+	*-cbm)
+		os=-amigados
+		;;
+	*-dg)
+		os=-dgux
+		;;
+	*-dolphin)
+		os=-sysv3
+		;;
+	m68k-ccur)
+		os=-rtu
+		;;
+	m88k-omron*)
+		os=-luna
+		;;
+	*-next )
+		os=-nextstep
+		;;
+	*-sequent)
+		os=-ptx
+		;;
+	*-crds)
+		os=-unos
+		;;
+	*-ns)
+		os=-genix
+		;;
+	i370-*)
+		os=-mvs
+		;;
+	*-next)
+		os=-nextstep3
+		;;
+        *-gould)
+		os=-sysv
+		;;
+        *-highlevel)
+		os=-bsd
+		;;
+	*-encore)
+		os=-bsd
+		;;
+        *-sgi)
+		os=-irix
+		;;
+        *-siemens)
+		os=-sysv4
+		;;
+	*-masscomp)
+		os=-rtu
+		;;
+	f301-fujitsu)
+		os=-uxpv
+		;;
+	*)
+		os=-none
+		;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer.  We pick the logical manufacturer.
+vendor=unknown
+case $basic_machine in
+	*-unknown)
+		case $os in
+			-riscix*)
+				vendor=acorn
+				;;
+			-sunos*)
+				vendor=sun
+				;;
+			-lynxos*)
+				vendor=lynx
+				;;
+			-aix*)
+				vendor=ibm
+				;;
+			-hpux*)
+				vendor=hp
+				;;
+			-hiux*)
+				vendor=hitachi
+				;;
+			-unos*)
+				vendor=crds
+				;;
+			-dgux*)
+				vendor=dg
+				;;
+			-luna*)
+				vendor=omron
+				;;
+			-genix*)
+				vendor=ns
+				;;
+			-mvs*)
+				vendor=ibm
+				;;
+			-ptx*)
+				vendor=sequent
+				;;
+			-vxsim* | -vxworks*)
+				vendor=wrs
+				;;
+			-aux*)
+				vendor=apple
+				;;
+		esac
+		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
+		;;
+esac
+
+echo $basic_machine$os
diff --git a/readline/support/install.sh b/readline/support/install.sh
new file mode 100755
index 00000000000..ea88212bb50
--- /dev/null
+++ b/readline/support/install.sh
@@ -0,0 +1,235 @@
+#!/bin/sh
+#
+# install - install a program, script, or datafile
+# This comes from X11R5.
+#
+# $XConsortium: install.sh,v 1.2 89/12/18 14:47:22 jim Exp $
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.
+#
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit="${DOITPROG-}"
+
+
+# put in absolute paths if you don't have them in your path; or use env. vars.
+
+mvprog="${MVPROG-mv}"
+cpprog="${CPPROG-cp}"
+chmodprog="${CHMODPROG-chmod}"
+chownprog="${CHOWNPROG-chown}"
+chgrpprog="${CHGRPPROG-chgrp}"
+stripprog="${STRIPPROG-strip}"
+rmprog="${RMPROG-rm}"
+mkdirprog="${MKDIRPROG-mkdir}"
+
+tranformbasename=""
+transform_arg=""
+instcmd="$mvprog"
+chmodcmd="$chmodprog 0755"
+chowncmd=""
+chgrpcmd=""
+stripcmd=""
+rmcmd="$rmprog -f"
+mvcmd="$mvprog"
+src=""
+dst=""
+dir_arg=""
+
+while [ x"$1" != x ]; do
+    case $1 in
+	-c) instcmd="$cpprog"
+	    shift
+	    continue;;
+
+	-d) dir_arg=true
+	    shift
+	    continue;;
+
+	-m) chmodcmd="$chmodprog $2"
+	    shift
+	    shift
+	    continue;;
+
+	-o) chowncmd="$chownprog $2"
+	    shift
+	    shift
+	    continue;;
+
+	-g) chgrpcmd="$chgrpprog $2"
+	    shift
+	    shift
+	    continue;;
+
+	-s) stripcmd="$stripprog"
+	    shift
+	    continue;;
+
+	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
+	    shift
+	    continue;;
+
+	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
+	    shift
+	    continue;;
+
+	*)  if [ x"$src" = x ]
+	    then
+		src=$1
+	    else
+		# this colon is to work around a 386BSD /bin/sh bug
+		:
+		dst=$1
+	    fi
+	    shift
+	    continue;;
+    esac
+done
+
+if [ x"$src" = x ]
+then
+	echo "install:	no input file specified"
+	exit 1
+else
+	true
+fi
+
+if [ x"$dir_arg" != x ]; then
+	dst=$src
+	src=""
+	
+	if [ -d $dst ]; then
+		instcmd=:
+	else
+		instcmd=mkdir
+	fi
+else
+
+# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
+# might cause directories to be created, which would be especially bad 
+# if $src (and thus $dsttmp) contains '*'.
+
+	if [ -f $src -o -d $src ]
+	then
+		true
+	else
+		echo "install:  $src does not exist"
+		exit 1
+	fi
+	
+	if [ x"$dst" = x ]
+	then
+		echo "install:	no destination specified"
+		exit 1
+	else
+		true
+	fi
+
+# If destination is a directory, append the input filename; if your system
+# does not like double slashes in filenames, you may need to add some logic
+
+	if [ -d $dst ]
+	then
+		dst="$dst"/`basename $src`
+	else
+		true
+	fi
+fi
+
+## this sed command emulates the dirname command
+dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
+
+# Make sure that the destination directory exists.
+#  this part is taken from Noah Friedman's mkinstalldirs script
+
+# Skip lots of stat calls in the usual case.
+if [ ! -d "$dstdir" ]; then
+defaultIFS='	
+'
+IFS="${IFS-${defaultIFS}}"
+
+oIFS="${IFS}"
+# Some sh's can't handle IFS=/ for some reason.
+IFS='%'
+set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
+IFS="${oIFS}"
+
+pathcomp=''
+
+while [ $# -ne 0 ] ; do
+	pathcomp="${pathcomp}${1}"
+	shift
+
+	if [ ! -d "${pathcomp}" ] ;
+        then
+		$mkdirprog "${pathcomp}"
+	else
+		true
+	fi
+
+	pathcomp="${pathcomp}/"
+done
+fi
+
+if [ x"$dir_arg" != x ]
+then
+	$doit $instcmd $dst &&
+
+	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
+	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
+	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
+	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
+else
+
+# If we're going to rename the final executable, determine the name now.
+
+	if [ x"$transformarg" = x ] 
+	then
+		dstfile=`basename $dst`
+	else
+		dstfile=`basename $dst $transformbasename | 
+			sed $transformarg`$transformbasename
+	fi
+
+# don't allow the sed command to completely eliminate the filename
+
+	if [ x"$dstfile" = x ] 
+	then
+		dstfile=`basename $dst`
+	else
+		true
+	fi
+
+# Make a temp file name in the proper directory.
+
+	dsttmp=$dstdir/#inst.$$#
+
+# Move or copy the file name to the temp name
+
+	$doit $instcmd $src $dsttmp &&
+
+	trap "rm -f ${dsttmp}" 0 &&
+
+# and set any options; do chmod last to preserve setuid bits
+
+# If any of these fail, we abort the whole thing.  If we want to
+# ignore errors from any of these, just make sure not to ignore
+# errors from the above "$doit $instcmd $src $dsttmp" command.
+
+	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
+	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
+	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
+	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&
+
+# Now rename the file to the real destination.
+
+	$doit $rmcmd -f $dstdir/$dstfile &&
+	$doit $mvcmd $dsttmp $dstdir/$dstfile 
+
+fi &&
+
+
+exit 0
diff --git a/readline/support/mkdirs b/readline/support/mkdirs
new file mode 100755
index 00000000000..b79d9716f46
--- /dev/null
+++ b/readline/support/mkdirs
@@ -0,0 +1,32 @@
+#! /bin/sh
+#
+# mkdirs - a work-alike for `mkdir -p'
+#
+# Chet Ramey
+# chet@po.cwru.edu
+
+for dir
+do
+
+	test -d "$dir" && continue
+
+	tomake=$dir
+	while test -n "$dir" ; do
+		# dir=${dir%/*}
+		# dir=`expr "$dir" ':' '\(/.*\)/[^/]*'`
+		if dir=`expr "$dir" ':' '\(.*\)/[^/]*'`; then
+			tomake="$dir $tomake"
+		else
+			dir=
+		fi
+	done
+
+	for d in $tomake
+	do
+		test -d "$d" && continue
+		echo mkdir "$d"
+		mkdir "$d"
+	done
+done
+
+exit 0
diff --git a/readline/support/mkdist b/readline/support/mkdist
new file mode 100755
index 00000000000..0d3d6940599
--- /dev/null
+++ b/readline/support/mkdist
@@ -0,0 +1,100 @@
+#! /bin/bash -
+#
+# mkdist - make a distribution directory from a master manifest file
+#
+# usage: mkdist [-m manifest] [-s srcdir] [-r rootname] [-v] version
+#
+# SRCDIR defaults to src
+# MANIFEST defaults to $SRCDIR/MANIFEST
+#
+
+SRCDIR=src
+ROOTNAME=bash
+
+usage()
+{
+	echo usage: mkdist [-m manifest] [-s srcdir] [-r rootname] [-v] version 1>&2
+	exit 2
+}
+
+vmsg()
+{
+	if [ -n "$verbose" ]; then
+		echo mkdist: "$@"
+	fi
+}
+
+while getopts m:s:r:v name
+do
+	case $name in
+	m)	MANIFEST=$OPTARG ;;
+	s)	SRCDIR=$OPTARG ;;
+	r)	ROOTNAME=$OPTARG ;;
+	v)	verbose=yes ;;
+	?)	usage ;;
+	esac
+done
+
+: ${MANIFEST:=$SRCDIR/MANIFEST}
+
+vmsg using $MANIFEST
+
+shift $(( $OPTIND - 1 ))
+
+if [ $# -lt 1 ]; then
+	usage
+fi
+
+version=$1
+newdir=${ROOTNAME}-$version
+
+vmsg creating distribution for version $version in $newdir
+
+if [ ! -d $newdir ]; then
+	mkdir $newdir || { echo $0: cannot make directory $newdir 1>&2 ; exit 1; }
+fi
+
+dirmode=755
+filmode=644
+
+while read fname type mode
+do
+	[ -z "$fname" ] && continue
+
+	case "$fname" in
+	\#*)	continue ;;
+	esac
+
+	case "$type" in
+	d)	mkdir $newdir/$fname ;;
+	f)	cp -p $SRCDIR/$fname $newdir/$fname ;;
+	*)	echo "unknown file type $type" 1>&2 ;;
+	esac
+
+	if [ -n "$mode" ]; then
+		chmod $mode $newdir/$fname
+	fi
+
+done < $MANIFEST
+
+# cut off the `-alpha' in something like `2.0-alpha', leaving just the
+# numeric version
+#version=${version%%-*}
+
+#case "$version" in
+#*.*.*)	vers=${version%.*} ;;
+#*.*)	vers=${version} ;;
+#esac
+
+#echo $vers > $newdir/.distribution
+
+#case "$version" in
+#*.*.*)	plevel=${version##*.} ;;
+#*)	plevel=0 ;;
+#esac
+#[ -z "$plevel" ] && plevel=0
+#echo ${plevel} > $newdir/.patchlevel
+
+vmsg $newdir created
+
+exit 0
diff --git a/readline/tcap.h b/readline/tcap.h
new file mode 100644
index 00000000000..acb2d76ab48
--- /dev/null
+++ b/readline/tcap.h
@@ -0,0 +1,60 @@
+/* tcap.h -- termcap library functions and variables. */
+
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+
+   This file contains the Readline Library (the Library), a set of
+   routines for providing Emacs style line input to programs that ask
+   for it.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (_RLTCAP_H_)
+#define _RLTCAP_H_
+
+#if defined (HAVE_CONFIG_H)
+#  include "config.h"
+#endif
+
+#if defined (HAVE_TERMCAP_H)
+#  if defined (__linux__) && !defined (SPEED_T_IN_SYS_TYPES)
+#    include "rltty.h"
+#  endif
+#  include <termcap.h>
+#else
+
+/* On Solaris2, sys/types.h #includes sys/reg.h, which #defines PC.
+   Unfortunately, PC is a global variable used by the termcap library. */
+#ifdef PC
+#  undef PC
+#endif
+
+extern char PC;
+extern char *UP, *BC;
+
+extern short ospeed;
+
+extern int tgetent ();
+extern int tgetflag ();
+extern int tgetnum ();
+extern char *tgetstr ();
+
+extern int tputs ();
+
+extern char *tgoto ();
+
+#endif /* HAVE_TERMCAP_H */
+
+#endif /* !_RLTCAP_H_ */
diff --git a/readline/terminal.c b/readline/terminal.c
new file mode 100644
index 00000000000..c28669659b0
--- /dev/null
+++ b/readline/terminal.c
@@ -0,0 +1,545 @@
+/* terminal.c -- controlling the terminal with termcap. */
+
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+#include "posixstat.h"
+#include <fcntl.h>
+#if defined (HAVE_SYS_FILE_H)
+#  include <sys/file.h>
+#endif /* HAVE_SYS_FILE_H */
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#if defined (HAVE_LOCALE_H)
+#  include <locale.h>
+#endif
+
+#include <signal.h>
+#include <stdio.h>
+#include <setjmp.h>
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+#if defined (GWINSZ_IN_SYS_IOCTL) && !defined (TIOCGWINSZ)
+#  include <sys/ioctl.h>
+#endif /* GWINSZ_IN_SYS_IOCTL && !TIOCGWINSZ */
+
+#include "rltty.h"
+#include "tcap.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+/* Variables and functions imported from readline.c */
+extern FILE *_rl_in_stream, *_rl_out_stream;
+extern int readline_echoing_p;
+extern int _rl_bell_preference;
+extern Keymap _rl_keymap;
+
+/* Functions imported from bind.c */
+extern void _rl_bind_if_unbound ();
+
+/* Functions imported from shell.c */
+extern void set_lines_and_columns ();
+extern char *get_env_value ();
+
+/* **************************************************************** */
+/*								    */
+/*			Terminal and Termcap			    */
+/*								    */
+/* **************************************************************** */
+
+static char *term_buffer = (char *)NULL;
+static char *term_string_buffer = (char *)NULL;
+
+static int tcap_initialized;
+
+/* Non-zero means this terminal can't really do anything. */
+static int dumb_term;
+
+#if !defined (__linux__)
+#  if defined (__EMX__) || defined (NEED_EXTERN_PC)
+extern 
+#  endif /* __EMX__ || NEED_EXTERN_PC */
+char PC, *BC, *UP;
+#endif /* __linux__ */
+
+/* Some strings to control terminal actions.  These are output by tputs (). */
+char *term_goto, *term_clreol, *term_cr, *term_clrpag, *term_backspace;
+char *term_pc;
+
+/* Non-zero if we determine that the terminal can do character insertion. */
+int terminal_can_insert = 0;
+
+/* How to insert characters. */
+char *term_im, *term_ei, *term_ic, *term_ip, *term_IC;
+
+/* How to delete characters. */
+char *term_dc, *term_DC;
+
+#if defined (HACK_TERMCAP_MOTION)
+char *term_forward_char;
+#endif  /* HACK_TERMCAP_MOTION */
+
+/* How to go up a line. */
+char *term_up;
+
+/* A visible bell, if the terminal can be made to flash the screen. */
+static char *visible_bell;
+
+/* Non-zero means the terminal can auto-wrap lines. */
+int _rl_term_autowrap;
+
+/* Non-zero means that this terminal has a meta key. */
+static int term_has_meta;
+
+/* The sequences to write to turn on and off the meta key, if this
+   terminal    has one. */
+static char *term_mm, *term_mo;
+
+/* The key sequences output by the arrow keys, if this terminal has any. */
+static char *term_ku, *term_kd, *term_kr, *term_kl;
+
+/* How to initialize and reset the arrow keys, if this terminal has any. */
+static char *term_ks, *term_ke;
+
+/* The key sequences sent by the Home and End keys, if any. */
+static char *term_kh, *term_kH;
+
+/* Variables that hold the screen dimensions, used by the display code. */
+int screenwidth, screenheight, screenchars;
+
+/* Non-zero means the user wants to enable the keypad. */
+int _rl_enable_keypad;
+
+/* Non-zero means the user wants to enable a meta key. */
+int _rl_enable_meta = 1;
+
+/* Get readline's idea of the screen size.  TTY is a file descriptor open
+   to the terminal.  If IGNORE_ENV is true, we do not pay attention to the
+   values of $LINES and $COLUMNS.  The tests for TERM_STRING_BUFFER being
+   non-null serve to check whether or not we have initialized termcap. */
+void
+_rl_get_screen_size (tty, ignore_env)
+     int tty, ignore_env;
+{
+  char *ss;
+#if defined (TIOCGWINSZ)
+  struct winsize window_size;
+#endif /* TIOCGWINSZ */
+#if defined (__EMX__)
+  int sz[2];
+#endif
+
+#if defined (TIOCGWINSZ)
+  if (ioctl (tty, TIOCGWINSZ, &window_size) == 0)
+    {
+      screenwidth = (int) window_size.ws_col;
+      screenheight = (int) window_size.ws_row;
+    }
+#endif /* TIOCGWINSZ */
+
+#if defined (__EMX__)
+  _scrsize (sz);
+  screenwidth = sz[0];
+  screenheight = sz[1];
+#endif
+
+  /* Environment variable COLUMNS overrides setting of "co" if IGNORE_ENV
+     is unset. */
+  if (screenwidth <= 0)
+    {
+      if (ignore_env == 0 && (ss = get_env_value ("COLUMNS")))
+	screenwidth = atoi (ss);
+
+      if (screenwidth <= 0 && term_string_buffer)
+	screenwidth = tgetnum ("co");
+    }
+
+  /* Environment variable LINES overrides setting of "li" if IGNORE_ENV
+     is unset. */
+  if (screenheight <= 0)
+    {
+      if (ignore_env == 0 && (ss = get_env_value ("LINES")))
+	screenheight = atoi (ss);
+
+      if (screenheight <= 0 && term_string_buffer)
+	screenheight = tgetnum ("li");
+    }
+
+  /* If all else fails, default to 80x24 terminal. */
+  if (screenwidth <= 1)
+    screenwidth = 80;
+
+  if (screenheight <= 0)
+    screenheight = 24;
+
+  /* If we're being compiled as part of bash, set the environment
+     variables $LINES and $COLUMNS to new values.  Otherwise, just
+     do a pair of putenv () or setenv () calls. */
+  set_lines_and_columns (screenheight, screenwidth);
+
+  if (!_rl_term_autowrap)
+    screenwidth--;
+
+  screenchars = screenwidth * screenheight;
+}
+
+void
+_rl_set_screen_size (rows, cols)
+     int rows, cols;
+{
+  screenheight = rows;
+  screenwidth = cols;
+
+  if (_rl_term_autowrap == 0)
+    screenwidth--;
+
+  screenchars = screenwidth * screenheight;
+}
+
+struct _tc_string {
+     char *tc_var;
+     char **tc_value;
+};
+
+/* This should be kept sorted, just in case we decide to change the
+   search algorithm to something smarter. */
+static struct _tc_string tc_strings[] =
+{
+  "DC", &term_DC,
+  "IC", &term_IC,
+  "ce", &term_clreol,
+  "cl", &term_clrpag,
+  "cr", &term_cr,
+  "dc", &term_dc,
+  "ei", &term_ei,
+  "ic", &term_ic,
+  "im", &term_im,
+  "kd", &term_kd,
+  "kh", &term_kh,	/* home */
+  "kH", &term_kH,	/* end */
+  "kl", &term_kl,
+  "kr", &term_kr,
+  "ku", &term_ku,
+  "ks", &term_ks,
+  "ke", &term_ke,
+  "le", &term_backspace,
+  "mm", &term_mm,
+  "mo", &term_mo,
+#if defined (HACK_TERMCAP_MOTION)
+  "nd", &term_forward_char,
+#endif
+  "pc", &term_pc,
+  "up", &term_up,
+  "vb", &visible_bell,
+};
+
+#define NUM_TC_STRINGS (sizeof (tc_strings) / sizeof (struct _tc_string))
+
+/* Read the desired terminal capability strings into BP.  The capabilities
+   are described in the TC_STRINGS table. */
+static void
+get_term_capabilities (bp)
+     char **bp;
+{
+  register int i;
+
+  for (i = 0; i < NUM_TC_STRINGS; i++)
+    *(tc_strings[i].tc_value) = tgetstr (tc_strings[i].tc_var, bp);
+  tcap_initialized = 1;
+}
+
+int
+_rl_init_terminal_io (terminal_name)
+     char *terminal_name;
+{
+#if defined (__GO32__)
+  screenwidth = ScreenCols ();
+  screenheight = ScreenRows ();
+  screenchars = screenwidth * screenheight;
+  term_cr = "\r";
+  term_im = term_ei = term_ic = term_IC = (char *)NULL;
+  term_up = term_dc = term_DC = visible_bell = (char *)NULL;
+
+  /* Does the __GO32__ have a meta key?  I don't know. */
+  term_has_meta = 0;
+  term_mm = term_mo = (char *)NULL;
+
+  /* It probably has arrow keys, but I don't know what they are. */
+  term_ku = term_kd = term_kr = term_kl = (char *)NULL;
+
+#if defined (HACK_TERMCAP_MOTION)
+  term_forward_char = (char *)NULL;
+#endif /* HACK_TERMCAP_MOTION */
+  terminal_can_insert = _rl_term_autowrap = 0;
+  return;
+#else /* !__GO32__ */
+
+  char *term, *buffer;
+  int tty;
+  Keymap xkeymap;
+
+  term = terminal_name ? terminal_name : get_env_value ("TERM");
+
+  if (term_string_buffer == 0)
+    term_string_buffer = xmalloc (2032);
+
+  if (term_buffer == 0)
+    term_buffer = xmalloc (4080);
+
+  buffer = term_string_buffer;
+
+  term_clrpag = term_cr = term_clreol = (char *)NULL;
+
+  if (term == 0)
+    term = "dumb";
+
+  if (tgetent (term_buffer, term) <= 0)
+    {
+      dumb_term = 1;
+      screenwidth = 79;
+      screenheight = 24;
+      screenchars = 79 * 24;
+      term_cr = "\r";
+      term_im = term_ei = term_ic = term_IC = (char *)NULL;
+      term_up = term_dc = term_DC = visible_bell = (char *)NULL;
+      term_ku = term_kd = term_kl = term_kr = (char *)NULL;
+#if defined (HACK_TERMCAP_MOTION)
+      term_forward_char = (char *)NULL;
+#endif
+      terminal_can_insert = 0;
+      return 0;
+    }
+
+  get_term_capabilities (&buffer);
+
+  /* Set up the variables that the termcap library expects the application
+     to provide. */
+  PC = term_pc ? *term_pc : 0;
+  BC = term_backspace;
+  UP = term_up;
+
+  if (!term_cr)
+    term_cr = "\r";
+
+  tty = rl_instream ? fileno (rl_instream) : 0;
+
+  screenwidth = screenheight = 0;
+
+  _rl_term_autowrap = tgetflag ("am") && tgetflag ("xn");
+
+  _rl_get_screen_size (tty, 0);
+
+  /* "An application program can assume that the terminal can do
+      character insertion if *any one of* the capabilities `IC',
+      `im', `ic' or `ip' is provided."  But we can't do anything if
+      only `ip' is provided, so... */
+  terminal_can_insert = (term_IC || term_im || term_ic);
+
+  /* Check to see if this terminal has a meta key and clear the capability
+     variables if there is none. */
+  term_has_meta = (tgetflag ("km") || tgetflag ("MT"));
+  if (!term_has_meta)
+    term_mm = term_mo = (char *)NULL;
+
+  /* Attempt to find and bind the arrow keys.  Do not override already
+     bound keys in an overzealous attempt, however. */
+  xkeymap = _rl_keymap;
+
+  _rl_keymap = emacs_standard_keymap;
+  _rl_bind_if_unbound (term_ku, rl_get_previous_history);
+  _rl_bind_if_unbound (term_kd, rl_get_next_history);
+  _rl_bind_if_unbound (term_kr, rl_forward);
+  _rl_bind_if_unbound (term_kl, rl_backward);
+
+  _rl_bind_if_unbound (term_kh, rl_beg_of_line);	/* Home */
+  _rl_bind_if_unbound (term_kH, rl_end_of_line);	/* End */
+
+#if defined (VI_MODE)
+  _rl_keymap = vi_movement_keymap;
+  _rl_bind_if_unbound (term_ku, rl_get_previous_history);
+  _rl_bind_if_unbound (term_kd, rl_get_next_history);
+  _rl_bind_if_unbound (term_kr, rl_forward);
+  _rl_bind_if_unbound (term_kl, rl_backward);
+
+  _rl_bind_if_unbound (term_kh, rl_beg_of_line);	/* Home */
+  _rl_bind_if_unbound (term_kH, rl_end_of_line);	/* End */
+#endif /* VI_MODE */
+
+  _rl_keymap = xkeymap;
+
+#endif /* !__GO32__ */
+  return 0;
+}
+
+char *
+rl_get_termcap (cap)
+     char *cap;
+{
+  register int i;
+
+  if (tcap_initialized == 0)
+    return ((char *)NULL);
+  for (i = 0; i < NUM_TC_STRINGS; i++)
+    {
+      if (tc_strings[i].tc_var[0] == cap[0] && strcmp (tc_strings[i].tc_var, cap) == 0)
+        return *(tc_strings[i].tc_value);
+    }
+  return ((char *)NULL);
+}
+
+/* Re-initialize the terminal considering that the TERM/TERMCAP variable
+   has changed. */
+int
+rl_reset_terminal (terminal_name)
+     char *terminal_name;
+{
+  _rl_init_terminal_io (terminal_name);
+  return 0;
+}
+
+/* A function for the use of tputs () */
+#ifdef _MINIX
+void
+_rl_output_character_function (c)
+     int c;
+{
+  putc (c, _rl_out_stream);
+}
+#else /* !_MINIX */
+int
+_rl_output_character_function (c)
+     int c;
+{
+  return putc (c, _rl_out_stream);
+}
+#endif /* !_MINIX */
+/* Write COUNT characters from STRING to the output stream. */
+void
+_rl_output_some_chars (string, count)
+     char *string;
+     int count;
+{
+  fwrite (string, 1, count, _rl_out_stream);
+}
+
+/* Move the cursor back. */
+int
+_rl_backspace (count)
+     int count;
+{
+  register int i;
+
+#if !defined (__GO32__)
+  if (term_backspace)
+    for (i = 0; i < count; i++)
+      tputs (term_backspace, 1, _rl_output_character_function);
+  else
+#endif /* !__GO32__ */
+    for (i = 0; i < count; i++)
+      putc ('\b', _rl_out_stream);
+  return 0;
+}
+
+/* Move to the start of the next line. */
+int
+crlf ()
+{
+#if defined (NEW_TTY_DRIVER)
+  if (term_cr)
+    tputs (term_cr, 1, _rl_output_character_function);
+#endif /* NEW_TTY_DRIVER */
+  putc ('\n', _rl_out_stream);
+  return 0;
+}
+
+/* Ring the terminal bell. */
+int
+ding ()
+{
+  if (readline_echoing_p)
+    {
+#if !defined (__GO32__)
+      switch (_rl_bell_preference)
+        {
+	case NO_BELL:
+	default:
+	  break;
+	case VISIBLE_BELL:
+	  if (visible_bell)
+	    {
+	      tputs (visible_bell, 1, _rl_output_character_function);
+	      break;
+	    }
+	  /* FALLTHROUGH */
+	case AUDIBLE_BELL:
+	  fprintf (stderr, "\007");
+	  fflush (stderr);
+	  break;
+        }
+#else /* __GO32__ */
+      fprintf (stderr, "\007");
+      fflush (stderr);
+#endif /* __GO32__ */
+      return (0);
+    }
+  return (-1);
+}
+
+/* **************************************************************** */
+/*								    */
+/*	 	Controlling the Meta Key and Keypad		    */
+/*								    */
+/* **************************************************************** */
+
+void
+_rl_enable_meta_key ()
+{
+  if (term_has_meta && term_mm)
+    tputs (term_mm, 1, _rl_output_character_function);
+}
+
+void
+_rl_control_keypad (on)
+     int on;
+{
+  if (on && term_ks)
+    tputs (term_ks, 1, _rl_output_character_function);
+  else if (!on && term_ke)
+    tputs (term_ke, 1, _rl_output_character_function);
+}
diff --git a/readline/tilde.c b/readline/tilde.c
new file mode 100644
index 00000000000..3741f9767b2
--- /dev/null
+++ b/readline/tilde.c
@@ -0,0 +1,466 @@
+/* tilde.c -- Tilde expansion code (~/foo := $HOME/foo). */
+
+/* Copyright (C) 1988,1989 Free Software Foundation, Inc.
+
+   This file is part of GNU Readline, a library for reading lines
+   of text with interactive input and history editing.
+
+   Readline is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 1, or (at your option) any
+   later version.
+
+   Readline is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Readline; see the file COPYING.  If not, write to the Free
+   Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#if defined (HAVE_UNISTD_H)
+#  ifdef _MINIX
+#    include <sys/types.h>
+#  endif
+#  include <unistd.h>
+#endif
+
+#if defined (HAVE_STRING_H)
+#  include <string.h>
+#else /* !HAVE_STRING_H */
+#  include <strings.h>
+#endif /* !HAVE_STRING_H */  
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <sys/types.h>
+#include <pwd.h>
+
+#include "tilde.h"
+
+#ifdef SHELL
+#include "shell.h"
+#endif
+
+#if !defined (HAVE_GETPW_DECLS)
+extern struct passwd *getpwuid (), *getpwnam ();
+#endif /* !HAVE_GETPW_DECLS */
+
+#if !defined (savestring)
+extern char *xmalloc ();
+#  ifndef strcpy
+extern char *strcpy ();
+#  endif
+#define savestring(x) strcpy (xmalloc (1 + strlen (x)), (x))
+#endif /* !savestring */
+
+#if !defined (NULL)
+#  if defined (__STDC__)
+#    define NULL ((void *) 0)
+#  else
+#    define NULL 0x0
+#  endif /* !__STDC__ */
+#endif /* !NULL */
+
+#if defined (TEST) || defined (STATIC_MALLOC)
+static char *xmalloc (), *xrealloc ();
+#else
+extern char *xmalloc (), *xrealloc ();
+#endif /* TEST || STATIC_MALLOC */
+
+/* The default value of tilde_additional_prefixes.  This is set to
+   whitespace preceding a tilde so that simple programs which do not
+   perform any word separation get desired behaviour. */
+static char *default_prefixes[] =
+  { " ~", "\t~", (char *)NULL };
+
+/* The default value of tilde_additional_suffixes.  This is set to
+   whitespace or newline so that simple programs which do not
+   perform any word separation get desired behaviour. */
+static char *default_suffixes[] =
+  { " ", "\n", (char *)NULL };
+
+/* If non-null, this contains the address of a function that the application
+   wants called before trying the standard tilde expansions.  The function
+   is called with the text sans tilde, and returns a malloc()'ed string
+   which is the expansion, or a NULL pointer if the expansion fails. */
+CPFunction *tilde_expansion_preexpansion_hook = (CPFunction *)NULL;
+
+/* If non-null, this contains the address of a function to call if the
+   standard meaning for expanding a tilde fails.  The function is called
+   with the text (sans tilde, as in "foo"), and returns a malloc()'ed string
+   which is the expansion, or a NULL pointer if there is no expansion. */
+CPFunction *tilde_expansion_failure_hook = (CPFunction *)NULL;
+
+/* When non-null, this is a NULL terminated array of strings which
+   are duplicates for a tilde prefix.  Bash uses this to expand
+   `=~' and `:~'. */
+char **tilde_additional_prefixes = default_prefixes;
+
+/* When non-null, this is a NULL terminated array of strings which match
+   the end of a username, instead of just "/".  Bash sets this to
+   `:' and `=~'. */
+char **tilde_additional_suffixes = default_suffixes;
+
+/* Find the start of a tilde expansion in STRING, and return the index of
+   the tilde which starts the expansion.  Place the length of the text
+   which identified this tilde starter in LEN, excluding the tilde itself. */
+static int
+tilde_find_prefix (string, len)
+     char *string;
+     int *len;
+{
+  register int i, j, string_len;
+  register char **prefixes = tilde_additional_prefixes;
+
+  string_len = strlen (string);
+  *len = 0;
+
+  if (*string == '\0' || *string == '~')
+    return (0);
+
+  if (prefixes)
+    {
+      for (i = 0; i < string_len; i++)
+	{
+	  for (j = 0; prefixes[j]; j++)
+	    {
+	      if (strncmp (string + i, prefixes[j], strlen (prefixes[j])) == 0)
+		{
+		  *len = strlen (prefixes[j]) - 1;
+		  return (i + *len);
+		}
+	    }
+	}
+    }
+  return (string_len);
+}
+
+/* Find the end of a tilde expansion in STRING, and return the index of
+   the character which ends the tilde definition.  */
+static int
+tilde_find_suffix (string)
+     char *string;
+{
+  register int i, j, string_len;
+  register char **suffixes;
+
+  suffixes = tilde_additional_suffixes;
+  string_len = strlen (string);
+
+  for (i = 0; i < string_len; i++)
+    {
+      if (string[i] == '/' /* || !string[i] */)
+	break;
+
+      for (j = 0; suffixes && suffixes[j]; j++)
+	{
+	  if (strncmp (string + i, suffixes[j], strlen (suffixes[j])) == 0)
+	    return (i);
+	}
+    }
+  return (i);
+}
+
+#if !defined (SHELL)
+static char *
+get_string_value (varname)
+     char *varname;
+{
+  return ((char *)getenv (varname));
+}
+#endif
+
+/* Return a new string which is the result of tilde expanding STRING. */
+char *
+tilde_expand (string)
+     char *string;
+{
+  char *result;
+  int result_size, result_index;
+
+  result_index = result_size = 0;
+  if (result = strchr (string, '~'))
+    result = xmalloc (result_size = (strlen (string) + 16));
+  else
+    result = xmalloc (result_size = (strlen (string) + 1));
+
+  /* Scan through STRING expanding tildes as we come to them. */
+  while (1)
+    {
+      register int start, end;
+      char *tilde_word, *expansion;
+      int len;
+
+      /* Make START point to the tilde which starts the expansion. */
+      start = tilde_find_prefix (string, &len);
+
+      /* Copy the skipped text into the result. */
+      if ((result_index + start + 1) > result_size)
+	result = xrealloc (result, 1 + (result_size += (start + 20)));
+
+      strncpy (result + result_index, string, start);
+      result_index += start;
+
+      /* Advance STRING to the starting tilde. */
+      string += start;
+
+      /* Make END be the index of one after the last character of the
+	 username. */
+      end = tilde_find_suffix (string);
+
+      /* If both START and END are zero, we are all done. */
+      if (!start && !end)
+	break;
+
+      /* Expand the entire tilde word, and copy it into RESULT. */
+      tilde_word = xmalloc (1 + end);
+      strncpy (tilde_word, string, end);
+      tilde_word[end] = '\0';
+      string += end;
+
+      expansion = tilde_expand_word (tilde_word);
+      free (tilde_word);
+
+      len = strlen (expansion);
+      if ((result_index + len + 1) > result_size)
+	result = xrealloc (result, 1 + (result_size += (len + 20)));
+
+      strcpy (result + result_index, expansion);
+      result_index += len;
+      free (expansion);
+    }
+
+  result[result_index] = '\0';
+
+  return (result);
+}
+
+/* Take FNAME and return the tilde prefix we want expanded.  If LENP is
+   non-null, the index of the end of the prefix into FNAME is returned in
+   the location it points to. */
+static char *
+isolate_tilde_prefix (fname, lenp)
+     char *fname;
+     int *lenp;
+{
+  char *ret;
+  int i;
+
+  ret = xmalloc (strlen (fname));
+  for (i = 1; fname[i] && fname[i] != '/'; i++)
+    ret[i - 1] = fname[i];
+  ret[i - 1] = '\0';
+  if (lenp)
+    *lenp = i;
+  return ret;
+}
+
+/* Return a string that is PREFIX concatenated with SUFFIX starting at
+   SUFFIND. */
+static char *
+glue_prefix_and_suffix (prefix, suffix, suffind)
+     char *prefix, *suffix;
+     int suffind;
+{
+  char *ret;
+  int plen, slen;
+
+  plen = (prefix && *prefix) ? strlen (prefix) : 0;
+  slen = strlen (suffix + suffind);
+  ret = xmalloc (plen + slen + 1);
+  if (prefix && *prefix)
+    strcpy (ret, prefix);
+  strcpy (ret + plen, suffix + suffind);
+  return ret;
+}
+
+static char *
+get_home_dir ()
+{
+  char *home_dir;
+
+#ifdef SHELL
+  home_dir = (char *)NULL;
+  if (current_user.home_dir == 0)
+    get_current_user_info ();
+  home_dir = current_user.home_dir;
+#else
+  struct passwd *entry;
+
+  home_dir = (char *)NULL;
+  entry = getpwuid (getuid ());
+  if (entry)
+    home_dir = entry->pw_dir;
+#endif
+  return (home_dir);
+}
+
+/* Do the work of tilde expansion on FILENAME.  FILENAME starts with a
+   tilde.  If there is no expansion, call tilde_expansion_failure_hook.
+   This always returns a newly-allocated string, never static storage. */
+char *
+tilde_expand_word (filename)
+     char *filename;
+{
+  char *dirname, *expansion, *username;
+  int user_len;
+  struct passwd *user_entry;
+
+  if (filename == 0)
+    return ((char *)NULL);
+
+  if (*filename != '~')
+    return (savestring (filename));
+
+  /* A leading `~/' or a bare `~' is *always* translated to the value of
+     $HOME or the home directory of the current user, regardless of any
+     preexpansion hook. */
+  if (filename[1] == '\0' || filename[1] == '/')
+    {
+      /* Prefix $HOME to the rest of the string. */
+      expansion = get_string_value ("HOME");
+
+      /* If there is no HOME variable, look up the directory in
+	 the password database. */
+      if (expansion == 0)
+	expansion = get_home_dir ();
+
+      return (glue_prefix_and_suffix (expansion, filename, 1));
+    }
+
+  username = isolate_tilde_prefix (filename, &user_len);
+
+  if (tilde_expansion_preexpansion_hook)
+    {
+      expansion = (*tilde_expansion_preexpansion_hook) (username);
+      if (expansion)
+	{
+	  dirname = glue_prefix_and_suffix (expansion, filename, user_len);
+	  free (username);
+	  free (expansion);
+	  return (dirname);
+	}
+    }
+
+  /* No preexpansion hook, or the preexpansion hook failed.  Look in the
+     password database. */
+  dirname = (char *)NULL;
+  user_entry = getpwnam (username);
+  if (user_entry == 0)
+    {
+      /* If the calling program has a special syntax for expanding tildes,
+	 and we couldn't find a standard expansion, then let them try. */
+      if (tilde_expansion_failure_hook)
+	{
+	  expansion = (*tilde_expansion_failure_hook) (username);
+	  if (expansion)
+	    {
+	      dirname = glue_prefix_and_suffix (expansion, filename, user_len);
+	      free (expansion);
+	    }
+	}
+      free (username);
+      /* If we don't have a failure hook, or if the failure hook did not
+	 expand the tilde, return a copy of what we were passed. */
+      if (dirname == 0)
+	dirname = savestring (filename);
+    }
+  else
+    {
+      free (username);
+      dirname = glue_prefix_and_suffix (user_entry->pw_dir, filename, user_len);
+    }
+
+  endpwent ();
+  return (dirname);
+}
+
+
+#if defined (TEST)
+#undef NULL
+#include <stdio.h>
+
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  char *result, line[512];
+  int done = 0;
+
+  while (!done)
+    {
+      printf ("~expand: ");
+      fflush (stdout);
+
+      if (!gets (line))
+	strcpy (line, "done");
+
+      if ((strcmp (line, "done") == 0) ||
+	  (strcmp (line, "quit") == 0) ||
+	  (strcmp (line, "exit") == 0))
+	{
+	  done = 1;
+	  break;
+	}
+
+      result = tilde_expand (line);
+      printf ("  --> %s\n", result);
+      free (result);
+    }
+  exit (0);
+}
+
+static void memory_error_and_abort ();
+
+static char *
+xmalloc (bytes)
+     int bytes;
+{
+  char *temp = (char *)malloc (bytes);
+
+  if (!temp)
+    memory_error_and_abort ();
+  return (temp);
+}
+
+static char *
+xrealloc (pointer, bytes)
+     char *pointer;
+     int bytes;
+{
+  char *temp;
+
+  if (!pointer)
+    temp = (char *)malloc (bytes);
+  else
+    temp = (char *)realloc (pointer, bytes);
+
+  if (!temp)
+    memory_error_and_abort ();
+
+  return (temp);
+}
+
+static void
+memory_error_and_abort ()
+{
+  fprintf (stderr, "readline: out of virtual memory\n");
+  abort ();
+}
+
+/*
+ * Local variables:
+ * compile-command: "gcc -g -DTEST -o tilde tilde.c"
+ * end:
+ */
+#endif /* TEST */
diff --git a/readline/tilde.h b/readline/tilde.h
new file mode 100644
index 00000000000..634b95449aa
--- /dev/null
+++ b/readline/tilde.h
@@ -0,0 +1,65 @@
+/* tilde.h: Externally available variables and function in libtilde.a. */
+
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+
+   This file contains the Readline Library (the Library), a set of
+   routines for providing Emacs style line input to programs that ask
+   for it.
+
+   The Library is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 1, or (at your option)
+   any later version.
+
+   The Library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (_TILDE_H_)
+#  define _TILDE_H_
+
+/* Function pointers can be declared as (Function *)foo. */
+#if !defined (_FUNCTION_DEF)
+#  define _FUNCTION_DEF
+typedef int Function ();
+typedef void VFunction ();
+typedef char *CPFunction ();
+typedef char **CPPFunction ();
+#endif /* _FUNCTION_DEF */
+
+/* If non-null, this contains the address of a function that the application
+   wants called before trying the standard tilde expansions.  The function
+   is called with the text sans tilde, and returns a malloc()'ed string
+   which is the expansion, or a NULL pointer if the expansion fails. */
+extern CPFunction *tilde_expansion_preexpansion_hook;
+
+/* If non-null, this contains the address of a function to call if the
+   standard meaning for expanding a tilde fails.  The function is called
+   with the text (sans tilde, as in "foo"), and returns a malloc()'ed string
+   which is the expansion, or a NULL pointer if there is no expansion. */
+extern CPFunction *tilde_expansion_failure_hook;
+
+/* When non-null, this is a NULL terminated array of strings which
+   are duplicates for a tilde prefix.  Bash uses this to expand
+   `=~' and `:~'. */
+extern char **tilde_additional_prefixes;
+
+/* When non-null, this is a NULL terminated array of strings which match
+   the end of a username, instead of just "/".  Bash sets this to
+   `:' and `=~'. */
+extern char **tilde_additional_suffixes;
+
+/* Return a new string which is the result of tilde expanding STRING. */
+extern char *tilde_expand ();
+
+/* Do the work of tilde expansion on FILENAME.  FILENAME starts with a
+   tilde.  If there is no expansion, call tilde_expansion_failure_hook. */
+extern char *tilde_expand_word ();
+
+#endif /* _TILDE_H_ */
diff --git a/readline/undo.c b/readline/undo.c
new file mode 100644
index 00000000000..28ebcc85b93
--- /dev/null
+++ b/readline/undo.c
@@ -0,0 +1,260 @@
+/* readline.c -- a general facility for reading lines of input
+   with emacs style editing and completion. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>           /* for _POSIX_VERSION */
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <stdio.h>
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+#define SWAP(s, e)  do { int t; t = s; s = e; e = t; } while (0)
+
+/* Non-zero tells rl_delete_text and rl_insert_text to not add to
+   the undo list. */
+int _rl_doing_an_undo = 0;
+
+/* How many unclosed undo groups we currently have. */
+int _rl_undo_group_level = 0;
+
+/* The current undo list for THE_LINE. */
+UNDO_LIST *rl_undo_list = (UNDO_LIST *)NULL;
+
+/* **************************************************************** */
+/*								    */
+/*			Undo, and Undoing			    */
+/*								    */
+/* **************************************************************** */
+
+/* Remember how to undo something.  Concatenate some undos if that
+   seems right. */
+void
+rl_add_undo (what, start, end, text)
+     enum undo_code what;
+     int start, end;
+     char *text;
+{
+  UNDO_LIST *temp = (UNDO_LIST *)xmalloc (sizeof (UNDO_LIST));
+  temp->what = what;
+  temp->start = start;
+  temp->end = end;
+  temp->text = text;
+  temp->next = rl_undo_list;
+  rl_undo_list = temp;
+}
+
+/* Free the existing undo list. */
+void
+free_undo_list ()
+{
+  while (rl_undo_list)
+    {
+      UNDO_LIST *release = rl_undo_list;
+      rl_undo_list = rl_undo_list->next;
+
+      if (release->what == UNDO_DELETE)
+	free (release->text);
+
+      free (release);
+    }
+  rl_undo_list = (UNDO_LIST *)NULL;
+}
+
+/* Undo the next thing in the list.  Return 0 if there
+   is nothing to undo, or non-zero if there was. */
+int
+rl_do_undo ()
+{
+  UNDO_LIST *release;
+  int waiting_for_begin = 0;
+  int start, end;
+
+#define TRANS(i) ((i) == -1 ? rl_point : ((i) == -2 ? rl_end : (i)))
+
+  do
+    {
+      if (!rl_undo_list)
+	return (0);
+
+      _rl_doing_an_undo = 1;
+
+      /* To better support vi-mode, a start or end value of -1 means
+	 rl_point, and a value of -2 means rl_end. */
+      if (rl_undo_list->what == UNDO_DELETE || rl_undo_list->what == UNDO_INSERT)
+	{
+	  start = TRANS (rl_undo_list->start);
+	  end = TRANS (rl_undo_list->end);
+	}
+
+      switch (rl_undo_list->what)
+	{
+	/* Undoing deletes means inserting some text. */
+	case UNDO_DELETE:
+	  rl_point = start;
+	  rl_insert_text (rl_undo_list->text);
+	  free (rl_undo_list->text);
+	  break;
+
+	/* Undoing inserts means deleting some text. */
+	case UNDO_INSERT:
+	  rl_delete_text (start, end);
+	  rl_point = start;
+	  break;
+
+	/* Undoing an END means undoing everything 'til we get to a BEGIN. */
+	case UNDO_END:
+	  waiting_for_begin++;
+	  break;
+
+	/* Undoing a BEGIN means that we are done with this group. */
+	case UNDO_BEGIN:
+	  if (waiting_for_begin)
+	    waiting_for_begin--;
+	  else
+	    ding ();
+	  break;
+	}
+
+      _rl_doing_an_undo = 0;
+
+      release = rl_undo_list;
+      rl_undo_list = rl_undo_list->next;
+      free (release);
+    }
+  while (waiting_for_begin);
+
+  return (1);
+}
+#undef TRANS
+
+int
+_rl_fix_last_undo_of_type (type, start, end)
+     int type, start, end;
+{
+  UNDO_LIST *rl;
+
+  for (rl = rl_undo_list; rl; rl = rl->next)
+    {
+      if (rl->what == type)
+	{
+	  rl->start = start;
+	  rl->end = end;
+	  return 0;
+	}
+    }
+  return 1;
+}
+
+/* Begin a group.  Subsequent undos are undone as an atomic operation. */
+int
+rl_begin_undo_group ()
+{
+  rl_add_undo (UNDO_BEGIN, 0, 0, 0);
+  _rl_undo_group_level++;
+  return 0;
+}
+
+/* End an undo group started with rl_begin_undo_group (). */
+int
+rl_end_undo_group ()
+{
+  rl_add_undo (UNDO_END, 0, 0, 0);
+  _rl_undo_group_level--;
+  return 0;
+}
+
+/* Save an undo entry for the text from START to END. */
+int
+rl_modifying (start, end)
+     int start, end;
+{
+  if (start > end)
+    {
+      SWAP (start, end);
+    }
+
+  if (start != end)
+    {
+      char *temp = rl_copy_text (start, end);
+      rl_begin_undo_group ();
+      rl_add_undo (UNDO_DELETE, start, end, temp);
+      rl_add_undo (UNDO_INSERT, start, end, (char *)NULL);
+      rl_end_undo_group ();
+    }
+  return 0;
+}
+
+/* Revert the current line to its previous state. */
+int
+rl_revert_line (count, key)
+     int count, key;
+{
+  if (!rl_undo_list)
+    ding ();
+  else
+    {
+      while (rl_undo_list)
+	rl_do_undo ();
+    }
+  return 0;
+}
+
+/* Do some undoing of things that were done. */
+int
+rl_undo_command (count, key)
+     int count, key;
+{
+  if (count < 0)
+    return 0;	/* Nothing to do. */
+
+  while (count)
+    {
+      if (rl_do_undo ())
+	count--;
+      else
+	{
+	  ding ();
+	  break;
+	}
+    }
+  return 0;
+}
diff --git a/readline/util.c b/readline/util.c
new file mode 100644
index 00000000000..fde012edb61
--- /dev/null
+++ b/readline/util.c
@@ -0,0 +1,364 @@
+/* util.c -- readline utility functions */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+#include <fcntl.h>
+#include "posixjmp.h"
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>           /* for _POSIX_VERSION */
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <stdio.h>
+#include <ctype.h>
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+#if defined (TIOCSTAT_IN_SYS_IOCTL)
+#  include <sys/ioctl.h>
+#endif /* TIOCSTAT_IN_SYS_IOCTL */
+
+/* Some standard library routines. */
+#include "readline.h"
+
+#define SWAP(s, e)  do { int t; t = s; s = e; e = t; } while (0)
+
+/* Pseudo-globals imported from readline.c */
+extern int readline_echoing_p;
+extern procenv_t readline_top_level;
+extern int rl_line_buffer_len;
+extern Function *rl_last_func;
+
+extern int _rl_defining_kbd_macro;
+extern char *_rl_executing_macro;
+
+/* Pseudo-global functions imported from other library files. */
+extern void _rl_pop_executing_macro ();
+extern void _rl_set_the_line ();
+extern void _rl_init_argument ();
+
+extern char *xmalloc (), *xrealloc ();
+
+/* **************************************************************** */
+/*								    */
+/*			Utility Functions			    */
+/*								    */
+/* **************************************************************** */
+
+/* Return 0 if C is not a member of the class of characters that belong
+   in words, or 1 if it is. */
+
+int _rl_allow_pathname_alphabetic_chars = 0;
+static char *pathname_alphabetic_chars = "/-_=~.#$";
+
+int
+alphabetic (c)
+     int c;
+{
+  if (ALPHABETIC (c))
+    return (1);
+
+  return (_rl_allow_pathname_alphabetic_chars &&
+	    strchr (pathname_alphabetic_chars, c) != NULL);
+}
+
+/* How to abort things. */
+int
+_rl_abort_internal ()
+{
+  ding ();
+  rl_clear_message ();
+  _rl_init_argument ();
+  rl_pending_input = 0;
+
+  _rl_defining_kbd_macro = 0;
+  while (_rl_executing_macro)
+    _rl_pop_executing_macro ();
+
+  rl_last_func = (Function *)NULL;
+  longjmp (readline_top_level, 1);
+  return (0);
+}
+
+int
+rl_abort (count, key)
+     int count, key;
+{
+  return (_rl_abort_internal ());
+}
+
+int
+rl_tty_status (count, key)
+     int count, key;
+{
+#if defined (TIOCSTAT)
+  ioctl (1, TIOCSTAT, (char *)0);
+  rl_refresh_line ();
+#else
+  ding ();
+#endif
+  return 0;
+}
+
+/* Return a copy of the string between FROM and TO.
+   FROM is inclusive, TO is not. */
+char *
+rl_copy_text (from, to)
+     int from, to;
+{
+  register int length;
+  char *copy;
+
+  /* Fix it if the caller is confused. */
+  if (from > to)
+    SWAP (from, to);
+
+  length = to - from;
+  copy = xmalloc (1 + length);
+  strncpy (copy, rl_line_buffer + from, length);
+  copy[length] = '\0';
+  return (copy);
+}
+
+/* Increase the size of RL_LINE_BUFFER until it has enough space to hold
+   LEN characters. */
+void
+rl_extend_line_buffer (len)
+     int len;
+{
+  while (len >= rl_line_buffer_len)
+    {
+      rl_line_buffer_len += DEFAULT_BUFFER_SIZE;
+      rl_line_buffer = xrealloc (rl_line_buffer, rl_line_buffer_len);
+    }
+
+  _rl_set_the_line ();
+}
+
+
+/* A function for simple tilde expansion. */
+int
+rl_tilde_expand (ignore, key)
+     int ignore, key;
+{
+  register int start, end;
+  char *homedir, *temp;
+  int len;
+
+  end = rl_point;
+  start = end - 1;
+
+  if (rl_point == rl_end && rl_line_buffer[rl_point] == '~')
+    {
+      homedir = tilde_expand ("~");
+      _rl_replace_text (homedir, start, end);
+      return (0);
+    }
+  else if (rl_line_buffer[start] != '~')
+    {
+      for (; !whitespace (rl_line_buffer[start]) && start >= 0; start--)
+        ;
+      start++;
+    }
+
+  end = start;
+  do
+    end++;
+  while (whitespace (rl_line_buffer[end]) == 0 && end < rl_end);
+
+  if (whitespace (rl_line_buffer[end]) || end >= rl_end)
+    end--;
+
+  /* If the first character of the current word is a tilde, perform
+     tilde expansion and insert the result.  If not a tilde, do
+     nothing. */
+  if (rl_line_buffer[start] == '~')
+    {
+      len = end - start + 1;
+      temp = xmalloc (len + 1);
+      strncpy (temp, rl_line_buffer + start, len);
+      temp[len] = '\0';
+      homedir = tilde_expand (temp);
+      free (temp);
+
+      _rl_replace_text (homedir, start, end);
+    }
+
+  return (0);
+}
+
+/* **************************************************************** */
+/*								    */
+/*			String Utility Functions		    */
+/*								    */
+/* **************************************************************** */
+
+/* Determine if s2 occurs in s1.  If so, return a pointer to the
+   match in s1.  The compare is case insensitive. */
+char *
+_rl_strindex (s1, s2)
+     register char *s1, *s2;
+{
+  register int i, l, len;
+
+  for (i = 0, l = strlen (s2), len = strlen (s1); (len - i) >= l; i++)
+    if (_rl_strnicmp (s1 + i, s2, l) == 0)
+      return (s1 + i);
+  return ((char *)NULL);
+}
+
+#if !defined (HAVE_STRCASECMP)
+/* Compare at most COUNT characters from string1 to string2.  Case
+   doesn't matter. */
+int
+_rl_strnicmp (string1, string2, count)
+     char *string1, *string2;
+     int count;
+{
+  register char ch1, ch2;
+
+  while (count)
+    {
+      ch1 = *string1++;
+      ch2 = *string2++;
+      if (_rl_to_upper(ch1) == _rl_to_upper(ch2))
+	count--;
+      else
+        break;
+    }
+  return (count);
+}
+
+/* strcmp (), but caseless. */
+int
+_rl_stricmp (string1, string2)
+     char *string1, *string2;
+{
+  register char ch1, ch2;
+
+  while (*string1 && *string2)
+    {
+      ch1 = *string1++;
+      ch2 = *string2++;
+      if (_rl_to_upper(ch1) != _rl_to_upper(ch2))
+	return (1);
+    }
+  return (*string1 - *string2);
+}
+#endif /* !HAVE_STRCASECMP */
+
+/* Stupid comparison routine for qsort () ing strings. */
+int
+_rl_qsort_string_compare (s1, s2)
+  char **s1, **s2;
+{
+#if defined (HAVE_STRCOLL)
+  return (strcoll (*s1, *s2));
+#else
+  int result;
+
+  result = **s1 - **s2;
+  if (result == 0)
+    result = strcmp (*s1, *s2);
+
+  return result;
+#endif
+}
+
+/* Function equivalents for the macros defined in chartypes.h. */
+#undef _rl_uppercase_p
+int
+_rl_uppercase_p (c)
+     int c;
+{
+  return (isupper (c));
+}
+
+#undef _rl_lowercase_p
+int
+_rl_lowercase_p (c)
+     int c;
+{
+  return (islower (c));
+}
+
+#undef _rl_pure_alphabetic
+int
+_rl_pure_alphabetic (c)
+     int c;
+{
+  return (isupper (c) || islower (c));
+}
+
+#undef _rl_digit_p
+int
+_rl_digit_p (c)
+     int c;
+{
+  return (isdigit (c));
+}
+
+#undef _rl_to_lower
+int
+_rl_to_lower (c)
+     int c;
+{
+  return (isupper (c) ? tolower (c) : c);
+}
+
+#undef _rl_to_upper
+int
+_rl_to_upper (c)
+     int c;
+{
+  return (islower (c) ? toupper (c) : c);
+}
+
+#undef _rl_digit_value
+int
+_rl_digit_value (c)
+     int c;
+{
+  return (isdigit (c) ? c - '0' : c);
+}
+
+/* Backwards compatibility, now that savestring has been removed from
+   all `public' readline header files. */
+#undef _rl_savestring
+char *
+_rl_savestring (s)
+     char *s;
+{
+  return ((char *)strcpy (xmalloc (1 + (int)strlen (s)), (s)));
+}
diff --git a/readline/vi_keymap.c b/readline/vi_keymap.c
new file mode 100644
index 00000000000..14929a31930
--- /dev/null
+++ b/readline/vi_keymap.c
@@ -0,0 +1,877 @@
+/* vi_keymap.c -- the keymap for vi_mode in readline (). */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (BUFSIZ)
+#include <stdio.h>
+#endif /* !BUFSIZ */
+
+#include "readline.h"
+
+#if 0
+extern KEYMAP_ENTRY_ARRAY vi_escape_keymap;
+#endif
+
+/* The keymap arrays for handling vi mode. */
+KEYMAP_ENTRY_ARRAY vi_movement_keymap = {
+  /* The regular control keys come first. */
+  { ISFUNC, (Function *)0x0 },		/* Control-@ */
+  { ISFUNC, (Function *)0x0 },		/* Control-a */
+  { ISFUNC, (Function *)0x0 },		/* Control-b */
+  { ISFUNC, (Function *)0x0 },		/* Control-c */
+  { ISFUNC, rl_vi_eof_maybe },		/* Control-d */
+  { ISFUNC, rl_emacs_editing_mode },	/* Control-e */
+  { ISFUNC, (Function *)0x0 },		/* Control-f */
+  { ISFUNC, rl_abort },			/* Control-g */
+  { ISFUNC, rl_backward },		/* Control-h */
+  { ISFUNC, (Function *)0x0 },		/* Control-i */
+  { ISFUNC, rl_newline },		/* Control-j */
+  { ISFUNC, rl_kill_line },		/* Control-k */
+  { ISFUNC, rl_clear_screen },		/* Control-l */
+  { ISFUNC, rl_newline },		/* Control-m */
+  { ISFUNC, rl_get_next_history },	/* Control-n */
+  { ISFUNC, (Function *)0x0 },		/* Control-o */
+  { ISFUNC, rl_get_previous_history },	/* Control-p */
+  { ISFUNC, rl_quoted_insert },		/* Control-q */
+  { ISFUNC, rl_reverse_search_history }, /* Control-r */
+  { ISFUNC, rl_forward_search_history }, /* Control-s */
+  { ISFUNC, rl_transpose_chars },	/* Control-t */
+  { ISFUNC, rl_unix_line_discard },	/* Control-u */
+  { ISFUNC, rl_quoted_insert },		/* Control-v */
+  { ISFUNC, rl_unix_word_rubout },	/* Control-w */
+  { ISFUNC, (Function *)0x0 },		/* Control-x */
+  { ISFUNC, rl_yank },			/* Control-y */
+  { ISFUNC, (Function *)0x0 },		/* Control-z */
+
+  { ISFUNC, (Function *)0x0 },		/* Control-[ */	/* vi_escape_keymap */
+  { ISFUNC, (Function *)0x0 },		/* Control-\ */
+  { ISFUNC, (Function *)0x0 },		/* Control-] */
+  { ISFUNC, (Function *)0x0 },		/* Control-^ */
+  { ISFUNC, rl_vi_undo },		/* Control-_ */
+
+  /* The start of printing characters. */
+  { ISFUNC, rl_forward },		/* SPACE */
+  { ISFUNC, (Function *)0x0 },		/* ! */
+  { ISFUNC, (Function *)0x0 },		/* " */
+  { ISFUNC, rl_insert_comment },	/* # */
+  { ISFUNC, rl_end_of_line },		/* $ */
+  { ISFUNC, rl_vi_match },		/* % */
+  { ISFUNC, rl_vi_tilde_expand },	/* & */
+  { ISFUNC, (Function *)0x0 },		/* ' */
+  { ISFUNC, (Function *)0x0 },		/* ( */
+  { ISFUNC, (Function *)0x0 },		/* ) */
+  { ISFUNC, rl_vi_complete },		/* * */
+  { ISFUNC, rl_get_next_history},	/* + */
+  { ISFUNC, rl_vi_char_search },	/* , */
+  { ISFUNC, rl_get_previous_history },	/* - */
+  { ISFUNC, rl_vi_redo },		/* . */
+  { ISFUNC, rl_vi_search },		/* / */
+
+  /* Regular digits. */
+  { ISFUNC, rl_beg_of_line },		/* 0 */
+  { ISFUNC, rl_vi_arg_digit },		/* 1 */
+  { ISFUNC, rl_vi_arg_digit },		/* 2 */
+  { ISFUNC, rl_vi_arg_digit },		/* 3 */
+  { ISFUNC, rl_vi_arg_digit },		/* 4 */
+  { ISFUNC, rl_vi_arg_digit },		/* 5 */
+  { ISFUNC, rl_vi_arg_digit },		/* 6 */
+  { ISFUNC, rl_vi_arg_digit },		/* 7 */
+  { ISFUNC, rl_vi_arg_digit },		/* 8 */
+  { ISFUNC, rl_vi_arg_digit },		/* 9 */
+
+  /* A little more punctuation. */
+  { ISFUNC, (Function *)0x0 },		/* : */
+  { ISFUNC, rl_vi_char_search },	/* ; */
+  { ISFUNC, (Function *)0x0 },		/* < */
+  { ISFUNC, rl_vi_complete },		/* = */
+  { ISFUNC, (Function *)0x0 },		/* > */
+  { ISFUNC, rl_vi_search },		/* ? */
+  { ISFUNC, (Function *)0x0 },		/* @ */
+
+  /* Uppercase alphabet. */
+  { ISFUNC, rl_vi_append_eol },		/* A */
+  { ISFUNC, rl_vi_prev_word},		/* B */
+  { ISFUNC, rl_vi_change_to },		/* C */
+  { ISFUNC, rl_vi_delete_to },		/* D */
+  { ISFUNC, rl_vi_end_word },		/* E */
+  { ISFUNC, rl_vi_char_search },	/* F */
+  { ISFUNC, rl_vi_fetch_history },	/* G */
+  { ISFUNC, (Function *)0x0 },		/* H */
+  { ISFUNC, rl_vi_insert_beg },		/* I */
+  { ISFUNC, (Function *)0x0 },		/* J */
+  { ISFUNC, (Function *)0x0 },		/* K */
+  { ISFUNC, (Function *)0x0 },		/* L */
+  { ISFUNC, (Function *)0x0 },		/* M */
+  { ISFUNC, rl_vi_search_again },	/* N */
+  { ISFUNC, (Function *)0x0 },		/* O */
+  { ISFUNC, rl_vi_put },		/* P */
+  { ISFUNC, (Function *)0x0 },		/* Q */
+  { ISFUNC, rl_vi_replace },		/* R */
+  { ISFUNC, rl_vi_subst },		/* S */
+  { ISFUNC, rl_vi_char_search },	/* T */
+  { ISFUNC, rl_revert_line },		/* U */
+  { ISFUNC, (Function *)0x0 },		/* V */
+  { ISFUNC, rl_vi_next_word },		/* W */
+  { ISFUNC, rl_rubout },		/* X */
+  { ISFUNC, rl_vi_yank_to },		/* Y */
+  { ISFUNC, (Function *)0x0 },		/* Z */
+
+  /* Some more punctuation. */
+  { ISFUNC, (Function *)0x0 },		/* [ */
+  { ISFUNC, rl_vi_complete },		/* \ */
+  { ISFUNC, (Function *)0x0 },		/* ] */
+  { ISFUNC, rl_vi_first_print },	/* ^ */
+  { ISFUNC, rl_vi_yank_arg },		/* _ */
+  { ISFUNC, rl_vi_goto_mark },		/* ` */
+
+  /* Lowercase alphabet. */
+  { ISFUNC, rl_vi_append_mode },	/* a */
+  { ISFUNC, rl_vi_prev_word },		/* b */
+  { ISFUNC, rl_vi_change_to },		/* c */
+  { ISFUNC, rl_vi_delete_to },		/* d */
+  { ISFUNC, rl_vi_end_word },		/* e */
+  { ISFUNC, rl_vi_char_search },	/* f */
+  { ISFUNC, (Function *)0x0 },		/* g */
+  { ISFUNC, rl_backward },		/* h */
+  { ISFUNC, rl_vi_insertion_mode },	/* i */
+  { ISFUNC, rl_get_next_history },	/* j */
+  { ISFUNC, rl_get_previous_history },	/* k */
+  { ISFUNC, rl_forward },		/* l */
+  { ISFUNC, rl_vi_set_mark },		/* m */
+  { ISFUNC, rl_vi_search_again },	/* n */
+  { ISFUNC, (Function *)0x0 },		/* o */
+  { ISFUNC, rl_vi_put },		/* p */
+  { ISFUNC, (Function *)0x0 },		/* q */
+  { ISFUNC, rl_vi_change_char },	/* r */
+  { ISFUNC, rl_vi_subst },		/* s */
+  { ISFUNC, rl_vi_char_search },	/* t */
+  { ISFUNC, rl_vi_undo },		/* u */
+  { ISFUNC, (Function *)0x0 },		/* v */
+  { ISFUNC, rl_vi_next_word },		/* w */
+  { ISFUNC, rl_vi_delete },		/* x */
+  { ISFUNC, rl_vi_yank_to },		/* y */
+  { ISFUNC, (Function *)0x0 },		/* z */
+
+  /* Final punctuation. */
+  { ISFUNC, (Function *)0x0 },		/* { */
+  { ISFUNC, rl_vi_column },		/* | */
+  { ISFUNC, (Function *)0x0 },		/* } */
+  { ISFUNC, rl_vi_change_case },	/* ~ */
+  { ISFUNC, (Function *)0x0 },		/* RUBOUT */
+
+#if KEYMAP_SIZE > 128
+  /* Undefined keys. */
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 }
+#endif /* KEYMAP_SIZE > 128 */
+};
+
+
+KEYMAP_ENTRY_ARRAY vi_insertion_keymap = {
+  /* The regular control keys come first. */
+  { ISFUNC, (Function *)0x0 },		/* Control-@ */
+  { ISFUNC, rl_insert },		/* Control-a */
+  { ISFUNC, rl_insert },		/* Control-b */
+  { ISFUNC, rl_insert },		/* Control-c */
+  { ISFUNC, rl_vi_eof_maybe },		/* Control-d */
+  { ISFUNC, rl_insert },		/* Control-e */
+  { ISFUNC, rl_insert },		/* Control-f */
+  { ISFUNC, rl_insert },		/* Control-g */
+  { ISFUNC, rl_rubout },		/* Control-h */
+  { ISFUNC, rl_complete },		/* Control-i */
+  { ISFUNC, rl_newline },		/* Control-j */
+  { ISFUNC, rl_insert },		/* Control-k */
+  { ISFUNC, rl_insert },		/* Control-l */
+  { ISFUNC, rl_newline },		/* Control-m */
+  { ISFUNC, rl_insert },		/* Control-n */
+  { ISFUNC, rl_insert },		/* Control-o */
+  { ISFUNC, rl_insert },		/* Control-p */
+  { ISFUNC, rl_insert },		/* Control-q */
+  { ISFUNC, rl_reverse_search_history }, /* Control-r */
+  { ISFUNC, rl_forward_search_history }, /* Control-s */
+  { ISFUNC, rl_transpose_chars },	/* Control-t */
+  { ISFUNC, rl_unix_line_discard },	/* Control-u */
+  { ISFUNC, rl_quoted_insert },		/* Control-v */
+  { ISFUNC, rl_unix_word_rubout },	/* Control-w */
+  { ISFUNC, rl_insert },		/* Control-x */
+  { ISFUNC, rl_yank },			/* Control-y */
+  { ISFUNC, rl_insert },		/* Control-z */
+
+  { ISFUNC, rl_vi_movement_mode },	/* Control-[ */
+  { ISFUNC, rl_insert },		/* Control-\ */
+  { ISFUNC, rl_insert },		/* Control-] */
+  { ISFUNC, rl_insert },		/* Control-^ */
+  { ISFUNC, rl_vi_undo },		/* Control-_ */
+
+  /* The start of printing characters. */
+  { ISFUNC, rl_insert },		/* SPACE */
+  { ISFUNC, rl_insert },		/* ! */
+  { ISFUNC, rl_insert },		/* " */
+  { ISFUNC, rl_insert },		/* # */
+  { ISFUNC, rl_insert },		/* $ */
+  { ISFUNC, rl_insert },		/* % */
+  { ISFUNC, rl_insert },		/* & */
+  { ISFUNC, rl_insert },		/* ' */
+  { ISFUNC, rl_insert },		/* ( */
+  { ISFUNC, rl_insert },		/* ) */
+  { ISFUNC, rl_insert },		/* * */
+  { ISFUNC, rl_insert },		/* + */
+  { ISFUNC, rl_insert },		/* , */
+  { ISFUNC, rl_insert },		/* - */
+  { ISFUNC, rl_insert },		/* . */
+  { ISFUNC, rl_insert },		/* / */
+
+  /* Regular digits. */
+  { ISFUNC, rl_insert },		/* 0 */
+  { ISFUNC, rl_insert },		/* 1 */
+  { ISFUNC, rl_insert },		/* 2 */
+  { ISFUNC, rl_insert },		/* 3 */
+  { ISFUNC, rl_insert },		/* 4 */
+  { ISFUNC, rl_insert },		/* 5 */
+  { ISFUNC, rl_insert },		/* 6 */
+  { ISFUNC, rl_insert },		/* 7 */
+  { ISFUNC, rl_insert },		/* 8 */
+  { ISFUNC, rl_insert },		/* 9 */
+
+  /* A little more punctuation. */
+  { ISFUNC, rl_insert },		/* : */
+  { ISFUNC, rl_insert },		/* ; */
+  { ISFUNC, rl_insert },		/* < */
+  { ISFUNC, rl_insert },		/* = */
+  { ISFUNC, rl_insert },		/* > */
+  { ISFUNC, rl_insert },		/* ? */
+  { ISFUNC, rl_insert },		/* @ */
+
+  /* Uppercase alphabet. */
+  { ISFUNC, rl_insert },		/* A */
+  { ISFUNC, rl_insert },		/* B */
+  { ISFUNC, rl_insert },		/* C */
+  { ISFUNC, rl_insert },		/* D */
+  { ISFUNC, rl_insert },		/* E */
+  { ISFUNC, rl_insert },		/* F */
+  { ISFUNC, rl_insert },		/* G */
+  { ISFUNC, rl_insert },		/* H */
+  { ISFUNC, rl_insert },		/* I */
+  { ISFUNC, rl_insert },		/* J */
+  { ISFUNC, rl_insert },		/* K */
+  { ISFUNC, rl_insert },		/* L */
+  { ISFUNC, rl_insert },		/* M */
+  { ISFUNC, rl_insert },		/* N */
+  { ISFUNC, rl_insert },		/* O */
+  { ISFUNC, rl_insert },		/* P */
+  { ISFUNC, rl_insert },		/* Q */
+  { ISFUNC, rl_insert },		/* R */
+  { ISFUNC, rl_insert },		/* S */
+  { ISFUNC, rl_insert },		/* T */
+  { ISFUNC, rl_insert },		/* U */
+  { ISFUNC, rl_insert },		/* V */
+  { ISFUNC, rl_insert },		/* W */
+  { ISFUNC, rl_insert },		/* X */
+  { ISFUNC, rl_insert },		/* Y */
+  { ISFUNC, rl_insert },		/* Z */
+
+  /* Some more punctuation. */
+  { ISFUNC, rl_insert },		/* [ */
+  { ISFUNC, rl_insert },		/* \ */
+  { ISFUNC, rl_insert },		/* ] */
+  { ISFUNC, rl_insert },		/* ^ */
+  { ISFUNC, rl_insert },		/* _ */
+  { ISFUNC, rl_insert },		/* ` */
+
+  /* Lowercase alphabet. */
+  { ISFUNC, rl_insert },		/* a */
+  { ISFUNC, rl_insert },		/* b */
+  { ISFUNC, rl_insert },		/* c */
+  { ISFUNC, rl_insert },		/* d */
+  { ISFUNC, rl_insert },		/* e */
+  { ISFUNC, rl_insert },		/* f */
+  { ISFUNC, rl_insert },		/* g */
+  { ISFUNC, rl_insert },		/* h */
+  { ISFUNC, rl_insert },		/* i */
+  { ISFUNC, rl_insert },		/* j */
+  { ISFUNC, rl_insert },		/* k */
+  { ISFUNC, rl_insert },		/* l */
+  { ISFUNC, rl_insert },		/* m */
+  { ISFUNC, rl_insert },		/* n */
+  { ISFUNC, rl_insert },		/* o */
+  { ISFUNC, rl_insert },		/* p */
+  { ISFUNC, rl_insert },		/* q */
+  { ISFUNC, rl_insert },		/* r */
+  { ISFUNC, rl_insert },		/* s */
+  { ISFUNC, rl_insert },		/* t */
+  { ISFUNC, rl_insert },		/* u */
+  { ISFUNC, rl_insert },		/* v */
+  { ISFUNC, rl_insert },		/* w */
+  { ISFUNC, rl_insert },		/* x */
+  { ISFUNC, rl_insert },		/* y */
+  { ISFUNC, rl_insert },		/* z */
+
+  /* Final punctuation. */
+  { ISFUNC, rl_insert },		/* { */
+  { ISFUNC, rl_insert },		/* | */
+  { ISFUNC, rl_insert },		/* } */
+  { ISFUNC, rl_insert },		/* ~ */
+  { ISFUNC, rl_rubout },		/* RUBOUT */
+
+#if KEYMAP_SIZE > 128
+  /* Pure 8-bit characters (128 - 159).
+     These might be used in some
+     character sets. */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+  { ISFUNC, rl_insert },	/* ? */
+
+  /* ISO Latin-1 characters (160 - 255) */
+  { ISFUNC, rl_insert },	/* No-break space */
+  { ISFUNC, rl_insert },	/* Inverted exclamation mark */
+  { ISFUNC, rl_insert },	/* Cent sign */
+  { ISFUNC, rl_insert },	/* Pound sign */
+  { ISFUNC, rl_insert },	/* Currency sign */
+  { ISFUNC, rl_insert },	/* Yen sign */
+  { ISFUNC, rl_insert },	/* Broken bar */
+  { ISFUNC, rl_insert },	/* Section sign */
+  { ISFUNC, rl_insert },	/* Diaeresis */
+  { ISFUNC, rl_insert },	/* Copyright sign */
+  { ISFUNC, rl_insert },	/* Feminine ordinal indicator */
+  { ISFUNC, rl_insert },	/* Left pointing double angle quotation mark */
+  { ISFUNC, rl_insert },	/* Not sign */
+  { ISFUNC, rl_insert },	/* Soft hyphen */
+  { ISFUNC, rl_insert },	/* Registered sign */
+  { ISFUNC, rl_insert },	/* Macron */
+  { ISFUNC, rl_insert },	/* Degree sign */
+  { ISFUNC, rl_insert },	/* Plus-minus sign */
+  { ISFUNC, rl_insert },	/* Superscript two */
+  { ISFUNC, rl_insert },	/* Superscript three */
+  { ISFUNC, rl_insert },	/* Acute accent */
+  { ISFUNC, rl_insert },	/* Micro sign */
+  { ISFUNC, rl_insert },	/* Pilcrow sign */
+  { ISFUNC, rl_insert },	/* Middle dot */
+  { ISFUNC, rl_insert },	/* Cedilla */
+  { ISFUNC, rl_insert },	/* Superscript one */
+  { ISFUNC, rl_insert },	/* Masculine ordinal indicator */
+  { ISFUNC, rl_insert },	/* Right pointing double angle quotation mark */
+  { ISFUNC, rl_insert },	/* Vulgar fraction one quarter */
+  { ISFUNC, rl_insert },	/* Vulgar fraction one half */
+  { ISFUNC, rl_insert },	/* Vulgar fraction three quarters */
+  { ISFUNC, rl_insert },	/* Inverted questionk mark */
+  { ISFUNC, rl_insert },	/* Latin capital letter a with grave */
+  { ISFUNC, rl_insert },	/* Latin capital letter a with acute */
+  { ISFUNC, rl_insert },	/* Latin capital letter a with circumflex */
+  { ISFUNC, rl_insert },	/* Latin capital letter a with tilde */
+  { ISFUNC, rl_insert },	/* Latin capital letter a with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin capital letter a with ring above */
+  { ISFUNC, rl_insert },	/* Latin capital letter ae */
+  { ISFUNC, rl_insert },	/* Latin capital letter c with cedilla */
+  { ISFUNC, rl_insert },	/* Latin capital letter e with grave */
+  { ISFUNC, rl_insert },	/* Latin capital letter e with acute */
+  { ISFUNC, rl_insert },	/* Latin capital letter e with circumflex */
+  { ISFUNC, rl_insert },	/* Latin capital letter e with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin capital letter i with grave */
+  { ISFUNC, rl_insert },	/* Latin capital letter i with acute */
+  { ISFUNC, rl_insert },	/* Latin capital letter i with circumflex */
+  { ISFUNC, rl_insert },	/* Latin capital letter i with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin capital letter eth (Icelandic) */
+  { ISFUNC, rl_insert },	/* Latin capital letter n with tilde */
+  { ISFUNC, rl_insert },	/* Latin capital letter o with grave */
+  { ISFUNC, rl_insert },	/* Latin capital letter o with acute */
+  { ISFUNC, rl_insert },	/* Latin capital letter o with circumflex */
+  { ISFUNC, rl_insert },	/* Latin capital letter o with tilde */
+  { ISFUNC, rl_insert },	/* Latin capital letter o with diaeresis */
+  { ISFUNC, rl_insert },	/* Multiplication sign */
+  { ISFUNC, rl_insert },	/* Latin capital letter o with stroke */
+  { ISFUNC, rl_insert },	/* Latin capital letter u with grave */
+  { ISFUNC, rl_insert },	/* Latin capital letter u with acute */
+  { ISFUNC, rl_insert },	/* Latin capital letter u with circumflex */
+  { ISFUNC, rl_insert },	/* Latin capital letter u with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin capital letter Y with acute */
+  { ISFUNC, rl_insert },	/* Latin capital letter thorn (Icelandic) */
+  { ISFUNC, rl_insert },	/* Latin small letter sharp s (German) */
+  { ISFUNC, rl_insert },	/* Latin small letter a with grave */
+  { ISFUNC, rl_insert },	/* Latin small letter a with acute */
+  { ISFUNC, rl_insert },	/* Latin small letter a with circumflex */
+  { ISFUNC, rl_insert },	/* Latin small letter a with tilde */
+  { ISFUNC, rl_insert },	/* Latin small letter a with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin small letter a with ring above */
+  { ISFUNC, rl_insert },	/* Latin small letter ae */
+  { ISFUNC, rl_insert },	/* Latin small letter c with cedilla */
+  { ISFUNC, rl_insert },	/* Latin small letter e with grave */
+  { ISFUNC, rl_insert },	/* Latin small letter e with acute */
+  { ISFUNC, rl_insert },	/* Latin small letter e with circumflex */
+  { ISFUNC, rl_insert },	/* Latin small letter e with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin small letter i with grave */
+  { ISFUNC, rl_insert },	/* Latin small letter i with acute */
+  { ISFUNC, rl_insert },	/* Latin small letter i with circumflex */
+  { ISFUNC, rl_insert },	/* Latin small letter i with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin small letter eth (Icelandic) */
+  { ISFUNC, rl_insert },	/* Latin small letter n with tilde */
+  { ISFUNC, rl_insert },	/* Latin small letter o with grave */
+  { ISFUNC, rl_insert },	/* Latin small letter o with acute */
+  { ISFUNC, rl_insert },	/* Latin small letter o with circumflex */
+  { ISFUNC, rl_insert },	/* Latin small letter o with tilde */
+  { ISFUNC, rl_insert },	/* Latin small letter o with diaeresis */
+  { ISFUNC, rl_insert },	/* Division sign */
+  { ISFUNC, rl_insert },	/* Latin small letter o with stroke */
+  { ISFUNC, rl_insert },	/* Latin small letter u with grave */
+  { ISFUNC, rl_insert },	/* Latin small letter u with acute */
+  { ISFUNC, rl_insert },	/* Latin small letter u with circumflex */
+  { ISFUNC, rl_insert },	/* Latin small letter u with diaeresis */
+  { ISFUNC, rl_insert },	/* Latin small letter y with acute */
+  { ISFUNC, rl_insert },	/* Latin small letter thorn (Icelandic) */
+  { ISFUNC, rl_insert }		/* Latin small letter y with diaeresis */
+#endif /* KEYMAP_SIZE > 128 */
+};
+
+/* Unused for the time being. */
+#if 0
+KEYMAP_ENTRY_ARRAY vi_escape_keymap = {
+  /* The regular control keys come first. */
+  { ISFUNC, (Function *)0x0 },		/* Control-@ */
+  { ISFUNC, (Function *)0x0 },		/* Control-a */
+  { ISFUNC, (Function *)0x0 },		/* Control-b */
+  { ISFUNC, (Function *)0x0 },		/* Control-c */
+  { ISFUNC, (Function *)0x0 },		/* Control-d */
+  { ISFUNC, (Function *)0x0 },		/* Control-e */
+  { ISFUNC, (Function *)0x0 },		/* Control-f */
+  { ISFUNC, (Function *)0x0 },		/* Control-g */
+  { ISFUNC, (Function *)0x0 },		/* Control-h */
+  { ISFUNC, rl_tab_insert},		/* Control-i */
+  { ISFUNC, rl_emacs_editing_mode},	/* Control-j */
+  { ISFUNC, rl_kill_line },		/* Control-k */
+  { ISFUNC, (Function *)0x0 },		/* Control-l */
+  { ISFUNC, rl_emacs_editing_mode},	/* Control-m */
+  { ISFUNC, (Function *)0x0 },		/* Control-n */
+  { ISFUNC, (Function *)0x0 },		/* Control-o */
+  { ISFUNC, (Function *)0x0 },		/* Control-p */
+  { ISFUNC, (Function *)0x0 },		/* Control-q */
+  { ISFUNC, (Function *)0x0 },		/* Control-r */
+  { ISFUNC, (Function *)0x0 },		/* Control-s */
+  { ISFUNC, (Function *)0x0 },		/* Control-t */
+  { ISFUNC, (Function *)0x0 },		/* Control-u */
+  { ISFUNC, (Function *)0x0 },		/* Control-v */
+  { ISFUNC, (Function *)0x0 },		/* Control-w */
+  { ISFUNC, (Function *)0x0 },		/* Control-x */
+  { ISFUNC, (Function *)0x0 },		/* Control-y */
+  { ISFUNC, (Function *)0x0 },		/* Control-z */
+
+  { ISFUNC, rl_vi_movement_mode },	/* Control-[ */
+  { ISFUNC, (Function *)0x0 },		/* Control-\ */
+  { ISFUNC, (Function *)0x0 },		/* Control-] */
+  { ISFUNC, (Function *)0x0 },		/* Control-^ */
+  { ISFUNC, rl_vi_undo },		/* Control-_ */
+
+  /* The start of printing characters. */
+  { ISFUNC, (Function *)0x0 },		/* SPACE */
+  { ISFUNC, (Function *)0x0 },		/* ! */
+  { ISFUNC, (Function *)0x0 },		/* " */
+  { ISFUNC, (Function *)0x0 },		/* # */
+  { ISFUNC, (Function *)0x0 },		/* $ */
+  { ISFUNC, (Function *)0x0 },		/* % */
+  { ISFUNC, (Function *)0x0 },		/* & */
+  { ISFUNC, (Function *)0x0 },		/* ' */
+  { ISFUNC, (Function *)0x0 },		/* ( */
+  { ISFUNC, (Function *)0x0 },		/* ) */
+  { ISFUNC, (Function *)0x0 },		/* * */
+  { ISFUNC, (Function *)0x0 },		/* + */
+  { ISFUNC, (Function *)0x0 },		/* , */
+  { ISFUNC, (Function *)0x0 },		/* - */
+  { ISFUNC, (Function *)0x0 },		/* . */
+  { ISFUNC, (Function *)0x0 },		/* / */
+
+  /* Regular digits. */
+  { ISFUNC, rl_vi_arg_digit },		/* 0 */
+  { ISFUNC, rl_vi_arg_digit },		/* 1 */
+  { ISFUNC, rl_vi_arg_digit },		/* 2 */
+  { ISFUNC, rl_vi_arg_digit },		/* 3 */
+  { ISFUNC, rl_vi_arg_digit },		/* 4 */
+  { ISFUNC, rl_vi_arg_digit },		/* 5 */
+  { ISFUNC, rl_vi_arg_digit },		/* 6 */
+  { ISFUNC, rl_vi_arg_digit },		/* 7 */
+  { ISFUNC, rl_vi_arg_digit },		/* 8 */
+  { ISFUNC, rl_vi_arg_digit },		/* 9 */
+
+  /* A little more punctuation. */
+  { ISFUNC, (Function *)0x0 },		/* : */
+  { ISFUNC, (Function *)0x0 },		/* ; */
+  { ISFUNC, (Function *)0x0 },		/* < */
+  { ISFUNC, (Function *)0x0 },		/* = */
+  { ISFUNC, (Function *)0x0 },		/* > */
+  { ISFUNC, (Function *)0x0 },		/* ? */
+  { ISFUNC, (Function *)0x0 },		/* @ */
+
+  /* Uppercase alphabet. */
+  { ISFUNC, rl_do_lowercase_version },	/* A */
+  { ISFUNC, rl_do_lowercase_version },	/* B */
+  { ISFUNC, rl_do_lowercase_version },	/* C */
+  { ISFUNC, rl_do_lowercase_version },	/* D */
+  { ISFUNC, rl_do_lowercase_version },	/* E */
+  { ISFUNC, rl_do_lowercase_version },	/* F */
+  { ISFUNC, rl_do_lowercase_version },	/* G */
+  { ISFUNC, rl_do_lowercase_version },	/* H */
+  { ISFUNC, rl_do_lowercase_version },	/* I */
+  { ISFUNC, rl_do_lowercase_version },	/* J */
+  { ISFUNC, rl_do_lowercase_version },	/* K */
+  { ISFUNC, rl_do_lowercase_version },	/* L */
+  { ISFUNC, rl_do_lowercase_version },	/* M */
+  { ISFUNC, rl_do_lowercase_version },	/* N */
+  { ISFUNC, rl_do_lowercase_version },	/* O */
+  { ISFUNC, rl_do_lowercase_version },	/* P */
+  { ISFUNC, rl_do_lowercase_version },	/* Q */
+  { ISFUNC, rl_do_lowercase_version },	/* R */
+  { ISFUNC, rl_do_lowercase_version },	/* S */
+  { ISFUNC, rl_do_lowercase_version },	/* T */
+  { ISFUNC, rl_do_lowercase_version },	/* U */
+  { ISFUNC, rl_do_lowercase_version },	/* V */
+  { ISFUNC, rl_do_lowercase_version },	/* W */
+  { ISFUNC, rl_do_lowercase_version },	/* X */
+  { ISFUNC, rl_do_lowercase_version },	/* Y */
+  { ISFUNC, rl_do_lowercase_version },	/* Z */
+
+  /* Some more punctuation. */
+  { ISFUNC, rl_arrow_keys },		/* [ */
+  { ISFUNC, (Function *)0x0 },		/* \ */
+  { ISFUNC, (Function *)0x0 },		/* ] */
+  { ISFUNC, (Function *)0x0 },		/* ^ */
+  { ISFUNC, (Function *)0x0 },		/* _ */
+  { ISFUNC, (Function *)0x0 },		/* ` */
+
+  /* Lowercase alphabet. */
+  { ISFUNC, (Function *)0x0 },		/* a */
+  { ISFUNC, (Function *)0x0 },		/* b */
+  { ISFUNC, (Function *)0x0 },		/* c */
+  { ISFUNC, (Function *)0x0 },		/* d */
+  { ISFUNC, (Function *)0x0 },		/* e */
+  { ISFUNC, (Function *)0x0 },		/* f */
+  { ISFUNC, (Function *)0x0 },		/* g */
+  { ISFUNC, (Function *)0x0 },		/* h */
+  { ISFUNC, (Function *)0x0 },		/* i */
+  { ISFUNC, (Function *)0x0 },		/* j */
+  { ISFUNC, (Function *)0x0 },		/* k */
+  { ISFUNC, (Function *)0x0 },		/* l */
+  { ISFUNC, (Function *)0x0 },		/* m */
+  { ISFUNC, (Function *)0x0 },		/* n */
+  { ISFUNC, rl_arrow_keys },		/* o */
+  { ISFUNC, (Function *)0x0 },		/* p */
+  { ISFUNC, (Function *)0x0 },		/* q */
+  { ISFUNC, (Function *)0x0 },		/* r */
+  { ISFUNC, (Function *)0x0 },		/* s */
+  { ISFUNC, (Function *)0x0 },		/* t */
+  { ISFUNC, (Function *)0x0 },		/* u */
+  { ISFUNC, (Function *)0x0 },		/* v */
+  { ISFUNC, (Function *)0x0 },		/* w */
+  { ISFUNC, (Function *)0x0 },		/* x */
+  { ISFUNC, (Function *)0x0 },		/* y */
+  { ISFUNC, (Function *)0x0 },		/* z */
+
+  /* Final punctuation. */
+  { ISFUNC, (Function *)0x0 },		/* { */
+  { ISFUNC, (Function *)0x0 },		/* | */
+  { ISFUNC, (Function *)0x0 },		/* } */
+  { ISFUNC, (Function *)0x0 },		/* ~ */
+  { ISFUNC, rl_backward_kill_word },	/* RUBOUT */
+
+#if KEYMAP_SIZE > 128
+  /* Undefined keys. */
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 },
+  { ISFUNC, (Function *)0x0 }
+#endif /* KEYMAP_SIZE > 128 */
+};
+#endif
diff --git a/readline/vi_mode.c b/readline/vi_mode.c
new file mode 100644
index 00000000000..2f62ec3d480
--- /dev/null
+++ b/readline/vi_mode.c
@@ -0,0 +1,1385 @@
+/* vi_mode.c -- A vi emulation mode for Bash.
+   Derived from code written by Jeff Sparkes (jsparkes@bnr.ca).  */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+   This file is part of the GNU Readline Library, a library for
+   reading lines of text with interactive input and history editing.
+
+   The GNU Readline Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 1, or
+   (at your option) any later version.
+
+   The GNU Readline Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   The GNU General Public License is often shipped with GNU software, and
+   is generally kept in a file called COPYING or LICENSE.  If you do not
+   have a copy of the license, write to the Free Software Foundation,
+   675 Mass Ave, Cambridge, MA 02139, USA. */
+#define READLINE_LIBRARY
+
+/* **************************************************************** */
+/*								    */
+/*			VI Emulation Mode			    */
+/*								    */
+/* **************************************************************** */
+#include "rlconf.h"
+
+#if defined (VI_MODE)
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <sys/types.h>
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif
+
+#include <stdio.h>
+
+/* Some standard library routines. */
+#include "rldefs.h"
+#include "readline.h"
+#include "history.h"
+
+#ifndef _rl_digit_p
+#define _rl_digit_p(c)  ((c) >= '0' && (c) <= '9')
+#endif
+
+#ifndef _rl_digit_value
+#define _rl_digit_value(c) ((c) - '0')
+#endif
+
+#ifndef member
+#define member(c, s) ((c) ? (char *)strchr ((s), (c)) != (char *)NULL : 0)
+#endif
+
+#ifndef isident
+#define isident(c) ((_rl_pure_alphabetic (c) || _rl_digit_p (c) || c == '_'))
+#endif
+
+#ifndef exchange
+#define exchange(x, y) do {int temp = x; x = y; y = temp;} while (0)
+#endif
+
+extern char *xmalloc (), *xrealloc ();
+
+/* Variables imported from readline.c */
+extern int rl_point, rl_end, rl_mark, rl_done;
+extern FILE *rl_instream;
+extern int rl_line_buffer_len, rl_explicit_arg, rl_numeric_arg;
+extern Keymap _rl_keymap;
+extern char *rl_prompt;
+extern char *rl_line_buffer;
+extern int rl_arg_sign;
+
+extern int _rl_doing_an_undo;
+extern int _rl_undo_group_level;
+
+extern void _rl_dispatch ();
+extern int _rl_char_search_internal ();
+
+extern void rl_extend_line_buffer ();
+extern int rl_vi_check ();
+
+/* Non-zero means enter insertion mode. */
+static int _rl_vi_doing_insert;
+
+/* Command keys which do movement for xxx_to commands. */
+static char *vi_motion = " hl^$0ftFt;,%wbeWBE|";
+
+/* Keymap used for vi replace characters.  Created dynamically since
+   rarely used. */
+static Keymap vi_replace_map;
+
+/* The number of characters inserted in the last replace operation. */
+static int vi_replace_count;
+
+/* If non-zero, we have text inserted after a c[motion] command that put
+   us implicitly into insert mode.  Some people want this text to be
+   attached to the command so that it is `redoable' with `.'. */
+static int vi_continued_command;
+static char *vi_insert_buffer;
+static int vi_insert_buffer_size;
+
+static int _rl_vi_last_command = 'i';	/* default `.' puts you in insert mode */
+static int _rl_vi_last_repeat = 1;
+static int _rl_vi_last_arg_sign = 1;
+static int _rl_vi_last_motion;
+static int _rl_vi_last_search_char;
+static int _rl_vi_last_replacement;
+
+static int _rl_vi_last_key_before_insert;
+
+static int vi_redoing;
+
+/* Text modification commands.  These are the `redoable' commands. */
+static char *vi_textmod = "_*\\AaIiCcDdPpYyRrSsXx~";
+
+/* Arrays for the saved marks. */
+static int vi_mark_chars[27];
+
+static int rl_digit_loop1 ();
+
+void
+_rl_vi_initialize_line ()
+{
+  register int i;
+
+  for (i = 0; i < sizeof (vi_mark_chars) / sizeof (int); i++)
+    vi_mark_chars[i] = -1;
+}
+
+void
+_rl_vi_reset_last ()
+{
+  _rl_vi_last_command = 'i';
+  _rl_vi_last_repeat = 1;
+  _rl_vi_last_arg_sign = 1;
+  _rl_vi_last_motion = 0;
+}
+
+void
+_rl_vi_set_last (key, repeat, sign)
+     int key, repeat, sign;
+{
+  _rl_vi_last_command = key;
+  _rl_vi_last_repeat = repeat;
+  _rl_vi_last_arg_sign = sign;
+}
+
+/* Is the command C a VI mode text modification command? */
+int
+_rl_vi_textmod_command (c)
+     int c;
+{
+  return (member (c, vi_textmod));
+}
+
+static void
+_rl_vi_stuff_insert (count)
+     int count;
+{
+  rl_begin_undo_group ();
+  while (count--)
+    rl_insert_text (vi_insert_buffer);
+  rl_end_undo_group ();
+}
+
+/* Bound to `.'.  Called from command mode, so we know that we have to
+   redo a text modification command.  The default for _rl_vi_last_command
+   puts you back into insert mode. */
+int
+rl_vi_redo (count, c)
+     int count, c;
+{
+  if (!rl_explicit_arg)
+    {
+      rl_numeric_arg = _rl_vi_last_repeat;
+      rl_arg_sign = _rl_vi_last_arg_sign;
+    }
+
+  vi_redoing = 1;
+  /* If we're redoing an insert with `i', stuff in the inserted text
+     and do not go into insertion mode. */
+  if (_rl_vi_last_command == 'i' && vi_insert_buffer && *vi_insert_buffer)
+    {
+      _rl_vi_stuff_insert (count);
+      /* And back up point over the last character inserted. */
+      if (rl_point > 0)
+	rl_point--;
+    }
+  else
+    _rl_dispatch (_rl_vi_last_command, _rl_keymap);
+  vi_redoing = 0;
+
+  return (0);
+}
+
+/* A placeholder for further expansion. */
+int
+rl_vi_undo (count, key)
+     int count, key;
+{
+  return (rl_undo_command (count, key));
+}
+    
+/* Yank the nth arg from the previous line into this line at point. */
+int
+rl_vi_yank_arg (count, key)
+     int count, key;
+{
+  /* Readline thinks that the first word on a line is the 0th, while vi
+     thinks the first word on a line is the 1st.  Compensate. */
+  if (rl_explicit_arg)
+    rl_yank_nth_arg (count - 1, 0);
+  else
+    rl_yank_nth_arg ('$', 0);
+
+  return (0);
+}
+
+/* With an argument, move back that many history lines, else move to the
+   beginning of history. */
+int
+rl_vi_fetch_history (count, c)
+     int count, c;
+{
+  int wanted;
+
+  /* Giving an argument of n means we want the nth command in the history
+     file.  The command number is interpreted the same way that the bash
+     `history' command does it -- that is, giving an argument count of 450
+     to this command would get the command listed as number 450 in the
+     output of `history'. */
+  if (rl_explicit_arg)
+    {
+      wanted = history_base + where_history () - count;
+      if (wanted <= 0)
+        rl_beginning_of_history (0, 0);
+      else
+        rl_get_previous_history (wanted, c);
+    }
+  else
+    rl_beginning_of_history (count, 0);
+  return (0);
+}
+
+/* Search again for the last thing searched for. */
+int
+rl_vi_search_again (count, key)
+     int count, key;
+{
+  switch (key)
+    {
+    case 'n':
+      rl_noninc_reverse_search_again (count, key);
+      break;
+
+    case 'N':
+      rl_noninc_forward_search_again (count, key);
+      break;
+    }
+  return (0);
+}
+
+/* Do a vi style search. */
+int
+rl_vi_search (count, key)
+     int count, key;
+{
+  switch (key)
+    {
+    case '?':
+      rl_noninc_forward_search (count, key);
+      break;
+
+    case '/':
+      rl_noninc_reverse_search (count, key);
+      break;
+
+    default:
+      ding ();
+      break;
+    }
+  return (0);
+}
+
+/* Completion, from vi's point of view. */
+int
+rl_vi_complete (ignore, key)
+     int ignore, key;
+{
+  if ((rl_point < rl_end) && (!whitespace (rl_line_buffer[rl_point])))
+    {
+      if (!whitespace (rl_line_buffer[rl_point + 1]))
+	rl_vi_end_word (1, 'E');
+      rl_point++;
+    }
+
+  if (key == '*')
+    rl_complete_internal ('*');	/* Expansion and replacement. */
+  else if (key == '=')
+    rl_complete_internal ('?');	/* List possible completions. */
+  else if (key == '\\')
+    rl_complete_internal (TAB);	/* Standard Readline completion. */
+  else
+    rl_complete (0, key);
+
+  if (key == '*' || key == '\\')
+    {
+      _rl_vi_set_last (key, 1, rl_arg_sign);
+      rl_vi_insertion_mode (1, key);
+    }
+  return (0);
+}
+
+/* Tilde expansion for vi mode. */
+int
+rl_vi_tilde_expand (ignore, key)
+     int ignore, key;
+{
+  rl_tilde_expand (0, key);
+  _rl_vi_set_last (key, 1, rl_arg_sign);	/* XXX */
+  rl_vi_insertion_mode (1, key);
+  return (0);
+}
+
+/* Previous word in vi mode. */
+int
+rl_vi_prev_word (count, key)
+     int count, key;
+{
+  if (count < 0)
+    return (rl_vi_next_word (-count, key));
+
+  if (rl_point == 0)
+    {
+      ding ();
+      return (0);
+    }
+
+  if (_rl_uppercase_p (key))
+    rl_vi_bWord (count);
+  else
+    rl_vi_bword (count);
+
+  return (0);
+}
+
+/* Next word in vi mode. */
+int
+rl_vi_next_word (count, key)
+     int count, key;
+{
+  if (count < 0)
+    return (rl_vi_prev_word (-count, key));
+
+  if (rl_point >= (rl_end - 1))
+    {
+      ding ();
+      return (0);
+    }
+
+  if (_rl_uppercase_p (key))
+    rl_vi_fWord (count);
+  else
+    rl_vi_fword (count);
+  return (0);
+}
+
+/* Move to the end of the ?next? word. */
+int
+rl_vi_end_word (count, key)
+     int count, key;
+{
+  if (count < 0)
+    {
+      ding ();
+      return -1;
+    }
+
+  if (_rl_uppercase_p (key))
+    rl_vi_eWord (count);
+  else
+    rl_vi_eword (count);
+  return (0);
+}
+
+/* Move forward a word the way that 'W' does. */
+int
+rl_vi_fWord (count)
+     int count;
+{
+  while (count-- && rl_point < (rl_end - 1))
+    {
+      /* Skip until whitespace. */
+      while (!whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
+	rl_point++;
+
+      /* Now skip whitespace. */
+      while (whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
+	rl_point++;
+    }
+  return (0);
+}
+
+int
+rl_vi_bWord (count)
+     int count;
+{
+  while (count-- && rl_point > 0)
+    {
+      /* If we are at the start of a word, move back to whitespace so
+	 we will go back to the start of the previous word. */
+      if (!whitespace (rl_line_buffer[rl_point]) &&
+	  whitespace (rl_line_buffer[rl_point - 1]))
+	rl_point--;
+
+      while (rl_point > 0 && whitespace (rl_line_buffer[rl_point]))
+	rl_point--;
+
+      if (rl_point > 0)
+	{
+	  while (--rl_point >= 0 && !whitespace (rl_line_buffer[rl_point]));
+	  rl_point++;
+	}
+    }
+  return (0);
+}
+
+int
+rl_vi_eWord (count)
+     int count;
+{
+  while (count-- && rl_point < (rl_end - 1))
+    {
+      if (!whitespace (rl_line_buffer[rl_point]))
+	rl_point++;
+
+      /* Move to the next non-whitespace character (to the start of the
+	 next word). */
+      while (++rl_point < rl_end && whitespace (rl_line_buffer[rl_point]));
+
+      if (rl_point && rl_point < rl_end)
+	{
+	  /* Skip whitespace. */
+	  while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
+	    rl_point++;
+
+	  /* Skip until whitespace. */
+	  while (rl_point < rl_end && !whitespace (rl_line_buffer[rl_point]))
+	    rl_point++;
+
+	  /* Move back to the last character of the word. */
+	  rl_point--;
+	}
+    }
+  return (0);
+}
+
+int
+rl_vi_fword (count)
+     int count;
+{
+  while (count-- && rl_point < (rl_end - 1))
+    {
+      /* Move to white space (really non-identifer). */
+      if (isident (rl_line_buffer[rl_point]))
+	{
+	  while (isident (rl_line_buffer[rl_point]) && rl_point < rl_end)
+	    rl_point++;
+	}
+      else /* if (!whitespace (rl_line_buffer[rl_point])) */
+	{
+	  while (!isident (rl_line_buffer[rl_point]) &&
+		 !whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
+	    rl_point++;
+	}
+
+      /* Move past whitespace. */
+      while (whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
+	rl_point++;
+    }
+  return (0);
+}
+
+int
+rl_vi_bword (count)
+     int count;
+{
+  while (count-- && rl_point > 0)
+    {
+      int last_is_ident;
+
+      /* If we are at the start of a word, move back to whitespace
+	 so we will go back to the start of the previous word. */
+      if (!whitespace (rl_line_buffer[rl_point]) &&
+	  whitespace (rl_line_buffer[rl_point - 1]))
+	rl_point--;
+
+      /* If this character and the previous character are `opposite', move
+	 back so we don't get messed up by the rl_point++ down there in
+	 the while loop.  Without this code, words like `l;' screw up the
+	 function. */
+      last_is_ident = isident (rl_line_buffer[rl_point - 1]);
+      if ((isident (rl_line_buffer[rl_point]) && !last_is_ident) ||
+	  (!isident (rl_line_buffer[rl_point]) && last_is_ident))
+	rl_point--;
+
+      while (rl_point > 0 && whitespace (rl_line_buffer[rl_point]))
+	rl_point--;
+
+      if (rl_point > 0)
+	{
+	  if (isident (rl_line_buffer[rl_point]))
+	    while (--rl_point >= 0 && isident (rl_line_buffer[rl_point]));
+	  else
+	    while (--rl_point >= 0 && !isident (rl_line_buffer[rl_point]) &&
+		   !whitespace (rl_line_buffer[rl_point]));
+	  rl_point++;
+	}
+    }
+  return (0);
+}
+
+int
+rl_vi_eword (count)
+     int count;
+{
+  while (count-- && rl_point < rl_end - 1)
+    {
+      if (!whitespace (rl_line_buffer[rl_point]))
+	rl_point++;
+
+      while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
+	rl_point++;
+
+      if (rl_point < rl_end)
+	{
+	  if (isident (rl_line_buffer[rl_point]))
+	    while (++rl_point < rl_end && isident (rl_line_buffer[rl_point]));
+	  else
+	    while (++rl_point < rl_end && !isident (rl_line_buffer[rl_point])
+		   && !whitespace (rl_line_buffer[rl_point]));
+	}
+      rl_point--;
+    }
+  return (0);
+}
+
+int
+rl_vi_insert_beg (count, key)
+     int count, key;
+{
+  rl_beg_of_line (1, key);
+  rl_vi_insertion_mode (1, key);
+  return (0);
+}
+
+int
+rl_vi_append_mode (count, key)
+     int count, key;
+{
+  if (rl_point < rl_end)
+    rl_point++;
+  rl_vi_insertion_mode (1, key);
+  return (0);
+}
+
+int
+rl_vi_append_eol (count, key)
+     int count, key;
+{
+  rl_end_of_line (1, key);
+  rl_vi_append_mode (1, key);
+  return (0);
+}
+
+/* What to do in the case of C-d. */
+int
+rl_vi_eof_maybe (count, c)
+     int count, c;
+{
+  return (rl_newline (1, '\n'));
+}
+
+/* Insertion mode stuff. */
+
+/* Switching from one mode to the other really just involves
+   switching keymaps. */
+int
+rl_vi_insertion_mode (count, key)
+     int count, key;
+{
+  _rl_keymap = vi_insertion_keymap;
+  _rl_vi_last_key_before_insert = key;
+  return (0);
+}
+
+static void
+_rl_vi_save_insert (up)
+      UNDO_LIST *up;
+{
+  int len, start, end;
+
+  if (up == 0)
+    {
+      if (vi_insert_buffer_size >= 1)
+	vi_insert_buffer[0] = '\0';
+      return;
+    }
+
+  start = up->start;
+  end = up->end;
+  len = end - start + 1;
+  if (len >= vi_insert_buffer_size)
+    {
+      vi_insert_buffer_size += (len + 32) - (len % 32);
+      vi_insert_buffer = xrealloc (vi_insert_buffer, vi_insert_buffer_size);
+    }
+  strncpy (vi_insert_buffer, rl_line_buffer + start, len - 1);
+  vi_insert_buffer[len-1] = '\0';
+}
+    
+void
+_rl_vi_done_inserting ()
+{
+  if (_rl_vi_doing_insert)
+    {
+      rl_end_undo_group ();
+      /* Now, the text between rl_undo_list->next->start and
+	 rl_undo_list->next->end is what was inserted while in insert
+	 mode.  It gets copied to VI_INSERT_BUFFER because it depends
+	 on absolute indices into the line which may change (though they
+	 probably will not). */
+      _rl_vi_doing_insert = 0;
+      _rl_vi_save_insert (rl_undo_list->next);
+      vi_continued_command = 1;
+    }
+  else
+    {
+      if (_rl_vi_last_key_before_insert == 'i' && rl_undo_list)
+        _rl_vi_save_insert (rl_undo_list);
+      /* XXX - Other keys probably need to be checked. */
+      else if (_rl_vi_last_key_before_insert == 'C')
+	rl_end_undo_group ();
+      while (_rl_undo_group_level > 0)
+	rl_end_undo_group ();
+      vi_continued_command = 0;
+    }
+}
+
+int
+rl_vi_movement_mode (count, key)
+     int count, key;
+{
+  if (rl_point > 0)
+    rl_backward (1, key);
+
+  _rl_keymap = vi_movement_keymap;
+  _rl_vi_done_inserting ();
+  return (0);
+}
+
+int
+rl_vi_arg_digit (count, c)
+     int count, c;
+{
+  if (c == '0' && rl_numeric_arg == 1 && !rl_explicit_arg)
+    return (rl_beg_of_line (1, c));
+  else
+    return (rl_digit_argument (count, c));
+}
+
+int
+rl_vi_change_case (count, ignore)
+     int count, ignore;
+{
+  char c = 0;
+
+  /* Don't try this on an empty line. */
+  if (rl_point >= rl_end)
+    return (0);
+
+  while (count-- && rl_point < rl_end)
+    {
+      if (_rl_uppercase_p (rl_line_buffer[rl_point]))
+	c = _rl_to_lower (rl_line_buffer[rl_point]);
+      else if (_rl_lowercase_p (rl_line_buffer[rl_point]))
+	c = _rl_to_upper (rl_line_buffer[rl_point]);
+      else
+	{
+	  /* Just skip over characters neither upper nor lower case. */
+	  rl_forward (1, c);
+	  continue;
+	}
+
+      /* Vi is kind of strange here. */
+      if (c)
+	{
+	  rl_begin_undo_group ();
+	  rl_delete (1, c);
+	  rl_insert (1, c);
+	  rl_end_undo_group ();
+	  rl_vi_check ();
+        }
+      else
+	rl_forward (1, c);
+    }
+  return (0);
+}
+
+int
+rl_vi_put (count, key)
+     int count, key;
+{
+  if (!_rl_uppercase_p (key) && (rl_point + 1 <= rl_end))
+    rl_point++;
+
+  rl_yank ();
+  rl_backward (1, key);
+  return (0);
+}
+
+int
+rl_vi_check ()
+{
+  if (rl_point && rl_point == rl_end)
+    rl_point--;
+  return (0);
+}
+
+int
+rl_vi_column (count, key)
+     int count, key;
+{
+  if (count > rl_end)
+    rl_end_of_line (1, key);
+  else
+    rl_point = count - 1;
+  return (0);
+}
+
+int
+rl_vi_domove (key, nextkey)
+     int key, *nextkey;
+{
+  int c, save;
+  int old_end;
+
+  rl_mark = rl_point;
+  c = rl_read_key ();
+  *nextkey = c;
+
+  if (!member (c, vi_motion))
+    {
+      if (_rl_digit_p (c))
+	{
+	  save = rl_numeric_arg;
+	  rl_numeric_arg = _rl_digit_value (c);
+	  rl_digit_loop1 ();
+	  rl_numeric_arg *= save;
+	  c = rl_read_key ();	/* real command */
+	  *nextkey = c;
+	}
+      else if (key == c && (key == 'd' || key == 'y' || key == 'c'))
+	{
+	  rl_mark = rl_end;
+	  rl_beg_of_line (1, c);
+	  _rl_vi_last_motion = c;
+	  return (0);
+	}
+      else
+	return (-1);
+    }
+
+  _rl_vi_last_motion = c;
+
+  /* Append a blank character temporarily so that the motion routines
+     work right at the end of the line. */
+  old_end = rl_end;
+  rl_line_buffer[rl_end++] = ' ';
+  rl_line_buffer[rl_end] = '\0';
+
+  _rl_dispatch (c, _rl_keymap);
+
+  /* Remove the blank that we added. */
+  rl_end = old_end;
+  rl_line_buffer[rl_end] = '\0';
+  if (rl_point > rl_end)
+    rl_point = rl_end;
+
+  /* No change in position means the command failed. */
+  if (rl_mark == rl_point)
+    return (-1);
+
+  /* rl_vi_f[wW]ord () leaves the cursor on the first character of the next
+     word.  If we are not at the end of the line, and we are on a
+     non-whitespace character, move back one (presumably to whitespace). */
+  if ((_rl_to_upper (c) == 'W') && rl_point < rl_end && rl_point > rl_mark &&
+      !whitespace (rl_line_buffer[rl_point]))
+    rl_point--;
+
+  /* If cw or cW, back up to the end of a word, so the behaviour of ce
+     or cE is the actual result.  Brute-force, no subtlety. */
+  if (key == 'c' && rl_point >= rl_mark && (_rl_to_upper (c) == 'W'))
+    {
+      /* Don't move farther back than where we started. */
+      while (rl_point > rl_mark && whitespace (rl_line_buffer[rl_point]))
+	rl_point--;
+
+      /* Posix.2 says that if cw or cW moves the cursor towards the end of
+	 the line, the character under the cursor should be deleted. */
+      if (rl_point == rl_mark)
+        rl_point++;
+      else
+	{
+	  /* Move past the end of the word so that the kill doesn't
+	     remove the last letter of the previous word.  Only do this
+	     if we are not at the end of the line. */
+	  if (rl_point >= 0 && rl_point < (rl_end - 1) && !whitespace (rl_line_buffer[rl_point]))
+	    rl_point++;
+	}
+    }
+
+  if (rl_mark < rl_point)
+    exchange (rl_point, rl_mark);
+
+  return (0);
+}
+
+/* A simplified loop for vi. Don't dispatch key at end.
+   Don't recognize minus sign? */
+static int
+rl_digit_loop1 ()
+{
+  int key, c;
+
+  while (1)
+    {
+      rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg, 0);
+      key = c = rl_read_key ();
+
+      if (_rl_keymap[c].type == ISFUNC &&
+	  _rl_keymap[c].function == rl_universal_argument)
+	{
+	  rl_numeric_arg *= 4;
+	  continue;
+	}
+
+      c = UNMETA (c);
+      if (_rl_digit_p (c))
+	{
+	  if (rl_explicit_arg)
+	    rl_numeric_arg = (rl_numeric_arg * 10) + _rl_digit_value (c);
+	  else
+	    rl_numeric_arg = _rl_digit_value (c);
+	  rl_explicit_arg = 1;
+	}
+      else
+	{
+	  rl_clear_message ();
+	  rl_stuff_char (key);
+	  break;
+	}
+    }
+  return (0);
+}
+
+int
+rl_vi_delete_to (count, key)
+     int count, key;
+{
+  int c;
+
+  if (_rl_uppercase_p (key))
+    rl_stuff_char ('$');
+  else if (vi_redoing)
+    rl_stuff_char (_rl_vi_last_motion);
+
+  if (rl_vi_domove (key, &c))
+    {
+      ding ();
+      return -1;
+    }
+
+  /* These are the motion commands that do not require adjusting the
+     mark. */
+  if ((strchr (" l|h^0bB", c) == 0) && (rl_mark < rl_end))
+    rl_mark++;
+
+  rl_kill_text (rl_point, rl_mark);
+  return (0);
+}
+
+int
+rl_vi_change_to (count, key)
+     int count, key;
+{
+  int c, start_pos;
+
+  if (_rl_uppercase_p (key))
+    rl_stuff_char ('$');
+  else if (vi_redoing)
+    rl_stuff_char (_rl_vi_last_motion);
+
+  start_pos = rl_point;
+
+  if (rl_vi_domove (key, &c))
+    {
+      ding ();
+      return -1;
+    }
+
+  /* These are the motion commands that do not require adjusting the
+     mark.  c[wW] are handled by special-case code in rl_vi_domove(),
+     and already leave the mark at the correct location. */
+  if ((strchr (" l|hwW^0bB", c) == 0) && (rl_mark < rl_end))
+    rl_mark++;
+
+  /* The cursor never moves with c[wW]. */
+  if ((_rl_to_upper (c) == 'W') && rl_point < start_pos)
+    rl_point = start_pos;
+
+  if (vi_redoing)
+    {
+      if (vi_insert_buffer && *vi_insert_buffer)
+	rl_begin_undo_group ();
+      rl_delete_text (rl_point, rl_mark);
+      if (vi_insert_buffer && *vi_insert_buffer)
+	{
+	  rl_insert_text (vi_insert_buffer);
+	  rl_end_undo_group ();
+	}
+    }
+  else
+    {
+      rl_begin_undo_group ();		/* to make the `u' command work */
+      rl_kill_text (rl_point, rl_mark);
+      /* `C' does not save the text inserted for undoing or redoing. */
+      if (_rl_uppercase_p (key) == 0)
+        _rl_vi_doing_insert = 1;
+      _rl_vi_set_last (key, count, rl_arg_sign);
+      rl_vi_insertion_mode (1, key);
+    }
+
+  return (0);
+}
+
+int
+rl_vi_yank_to (count, key)
+     int count, key;
+{
+  int c, save = rl_point;
+
+  if (_rl_uppercase_p (key))
+    rl_stuff_char ('$');
+
+  if (rl_vi_domove (key, &c))
+    {
+      ding ();
+      return -1;
+    }
+
+  /* These are the motion commands that do not require adjusting the
+     mark. */
+  if ((strchr (" l|h^0%bB", c) == 0) && (rl_mark < rl_end))
+    rl_mark++;
+
+  rl_begin_undo_group ();
+  rl_kill_text (rl_point, rl_mark);
+  rl_end_undo_group ();
+  rl_do_undo ();
+  rl_point = save;
+
+  return (0);
+}
+
+int
+rl_vi_delete (count, key)
+     int count, key;
+{
+  int end;
+
+  if (rl_end == 0)
+    {
+      ding ();
+      return -1;
+    }
+
+  end = rl_point + count;
+
+  if (end >= rl_end)
+    end = rl_end;
+
+  rl_kill_text (rl_point, end);
+  
+  if (rl_point > 0 && rl_point == rl_end)
+    rl_backward (1, key);
+  return (0);
+}
+
+int
+rl_vi_back_to_indent (count, key)
+     int count, key;
+{
+  rl_beg_of_line (1, key);
+  while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
+    rl_point++;
+  return (0);
+}
+
+int
+rl_vi_first_print (count, key)
+     int count, key;
+{
+  return (rl_vi_back_to_indent (1, key));
+}
+
+int
+rl_vi_char_search (count, key)
+     int count, key;
+{
+  static char target;
+  static int orig_dir, dir;
+
+  if (key == ';' || key == ',')
+    dir = key == ';' ? orig_dir : -orig_dir;
+  else
+    {
+      if (vi_redoing)
+	target = _rl_vi_last_search_char;
+      else
+	_rl_vi_last_search_char = target = rl_getc (rl_instream);
+
+      switch (key)
+        {
+        case 't':
+          orig_dir = dir = FTO;
+          break;
+
+        case 'T':
+          orig_dir = dir = BTO;
+          break;
+
+        case 'f':
+          orig_dir = dir = FFIND;
+          break;
+
+        case 'F':
+          orig_dir = dir = BFIND;
+          break;
+        }
+    }
+
+  return (_rl_char_search_internal (count, dir, target));
+}
+
+/* Match brackets */
+int
+rl_vi_match (ignore, key)
+     int ignore, key;
+{
+  int count = 1, brack, pos;
+
+  pos = rl_point;
+  if ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0)
+    {
+      while ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0 &&
+	     rl_point < rl_end - 1)
+	rl_forward (1, key);
+
+      if (brack <= 0)
+	{
+	  rl_point = pos;
+	  ding ();
+	  return -1;
+	}
+    }
+
+  pos = rl_point;
+
+  if (brack < 0)
+    {
+      while (count)
+	{
+	  if (--pos >= 0)
+	    {
+	      int b = rl_vi_bracktype (rl_line_buffer[pos]);
+	      if (b == -brack)
+		count--;
+	      else if (b == brack)
+		count++;
+	    }
+	  else
+	    {
+	      ding ();
+	      return -1;
+	    }
+	}
+    }
+  else
+    {			/* brack > 0 */
+      while (count)
+	{
+	  if (++pos < rl_end)
+	    {
+	      int b = rl_vi_bracktype (rl_line_buffer[pos]);
+	      if (b == -brack)
+		count--;
+	      else if (b == brack)
+		count++;
+	    }
+	  else
+	    {
+	      ding ();
+	      return -1;
+	    }
+	}
+    }
+  rl_point = pos;
+  return (0);
+}
+
+int
+rl_vi_bracktype (c)
+     int c;
+{
+  switch (c)
+    {
+    case '(': return  1;
+    case ')': return -1;
+    case '[': return  2;
+    case ']': return -2;
+    case '{': return  3;
+    case '}': return -3;
+    default:  return  0;
+    }
+}
+
+int
+rl_vi_change_char (count, key)
+     int count, key;
+{
+  int c;
+
+  if (vi_redoing)
+    c = _rl_vi_last_replacement;
+  else
+    _rl_vi_last_replacement = c = rl_getc (rl_instream);
+
+  if (c == '\033' || c == CTRL ('C'))
+    return -1;
+
+  while (count-- && rl_point < rl_end)
+    {
+      rl_begin_undo_group ();
+
+      rl_delete (1, c);
+      rl_insert (1, c);
+      if (count == 0)
+	rl_backward (1, c);
+
+      rl_end_undo_group ();
+    }
+  return (0);
+}
+
+int
+rl_vi_subst (count, key)
+     int count, key;
+{
+  rl_begin_undo_group ();
+
+  if (_rl_uppercase_p (key))
+    {
+      rl_beg_of_line (1, key);
+      rl_kill_line (1, key);
+    }
+  else
+    rl_delete_text (rl_point, rl_point+count);
+
+  rl_end_undo_group ();
+
+  _rl_vi_set_last (key, count, rl_arg_sign);
+
+  if (vi_redoing)
+    {
+      int o = _rl_doing_an_undo;
+
+      _rl_doing_an_undo = 1;
+      if (vi_insert_buffer && *vi_insert_buffer)
+	rl_insert_text (vi_insert_buffer);
+      _rl_doing_an_undo = o;
+    }
+  else
+    {
+      rl_begin_undo_group ();
+      _rl_vi_doing_insert = 1;
+      rl_vi_insertion_mode (1, key);
+    }
+
+  return (0);
+}
+
+int
+rl_vi_overstrike (count, key)
+     int count, key;
+{
+  int i;
+
+  if (_rl_vi_doing_insert == 0)
+    {
+      _rl_vi_doing_insert = 1;
+      rl_begin_undo_group ();
+    }
+
+  for (i = 0; i < count; i++)
+    {
+      vi_replace_count++;
+      rl_begin_undo_group ();
+
+      if (rl_point < rl_end)
+	{
+	  rl_delete (1, key);
+	  rl_insert (1, key);
+	}
+      else
+	rl_insert (1, key);
+
+      rl_end_undo_group ();
+    }
+  return (0);
+}
+
+int
+rl_vi_overstrike_delete (count, key)
+     int count, key;
+{
+  int i, s;
+
+  for (i = 0; i < count; i++)
+    {
+      if (vi_replace_count == 0)
+	{
+	  ding ();
+	  break;
+	}
+      s = rl_point;
+
+      if (rl_do_undo ())
+	vi_replace_count--;
+
+      if (rl_point == s)
+	rl_backward (1, key);
+    }
+
+  if (vi_replace_count == 0 && _rl_vi_doing_insert)
+    {
+      rl_end_undo_group ();
+      rl_do_undo ();
+      _rl_vi_doing_insert = 0;
+    }
+  return (0);
+}
+
+int
+rl_vi_replace (count, key)
+     int count, key;
+{
+  int i;
+
+  vi_replace_count = 0;
+
+  if (!vi_replace_map)
+    {
+      vi_replace_map = rl_make_bare_keymap ();
+
+      for (i = ' '; i < KEYMAP_SIZE; i++)
+	vi_replace_map[i].function = rl_vi_overstrike;
+
+      vi_replace_map[RUBOUT].function = rl_vi_overstrike_delete;
+      vi_replace_map[ESC].function = rl_vi_movement_mode;
+      vi_replace_map[RETURN].function = rl_newline;
+      vi_replace_map[NEWLINE].function = rl_newline;
+
+      /* If the normal vi insertion keymap has ^H bound to erase, do the
+         same here.  Probably should remove the assignment to RUBOUT up
+         there, but I don't think it will make a difference in real life. */
+      if (vi_insertion_keymap[CTRL ('H')].type == ISFUNC &&
+	  vi_insertion_keymap[CTRL ('H')].function == rl_rubout)
+	vi_replace_map[CTRL ('H')].function = rl_vi_overstrike_delete;
+
+    }
+  _rl_keymap = vi_replace_map;
+  return (0);
+}
+
+#if 0
+/* Try to complete the word we are standing on or the word that ends with
+   the previous character.  A space matches everything.  Word delimiters are
+   space and ;. */
+int
+rl_vi_possible_completions()
+{
+  int save_pos = rl_point;
+
+  if (rl_line_buffer[rl_point] != ' ' && rl_line_buffer[rl_point] != ';')
+    {
+      while (rl_point < rl_end && rl_line_buffer[rl_point] != ' ' &&
+	     rl_line_buffer[rl_point] != ';')
+	rl_point++;
+    }
+  else if (rl_line_buffer[rl_point - 1] == ';')
+    {
+      ding ();
+      return (0);
+    }
+
+  rl_possible_completions ();
+  rl_point = save_pos;
+
+  return (0);
+}
+#endif
+
+/* Functions to save and restore marks. */
+int
+rl_vi_set_mark (count, key)
+     int count, key;
+{
+  int ch;
+
+  ch = rl_read_key ();
+  if (_rl_lowercase_p (ch) == 0)
+    {
+      ding ();
+      return -1;
+    }
+  ch -= 'a';
+  vi_mark_chars[ch] = rl_point;
+  return 0;
+}
+
+int
+rl_vi_goto_mark (count, key)
+     int count, key;
+{
+  int ch;
+
+  ch = rl_read_key ();
+  if (ch == '`')
+    {
+      rl_point = rl_mark;
+      return 0;
+    }
+  else if (_rl_lowercase_p (ch) == 0)
+    {
+      ding ();
+      return -1;
+    }
+
+  ch -= 'a';
+  if (vi_mark_chars[ch] == -1)
+    {
+      ding ();
+      return -1;
+    }
+  rl_point = vi_mark_chars[ch];
+  return 0;
+}
+
+#endif /* VI_MODE */
diff --git a/readline/xmalloc.c b/readline/xmalloc.c
new file mode 100644
index 00000000000..4160651191b
--- /dev/null
+++ b/readline/xmalloc.c
@@ -0,0 +1,87 @@
+/* xmalloc.c -- safe versions of malloc and realloc */
+
+/* Copyright (C) 1991 Free Software Foundation, Inc.
+
+   This file is part of GNU Readline, a library for reading lines
+   of text with interactive input and history editing.
+
+   Readline is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 1, or (at your option) any
+   later version.
+
+   Readline is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Readline; see the file COPYING.  If not, write to the Free
+   Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if defined (HAVE_CONFIG_H)
+#include <config.h>
+#endif
+
+#include <stdio.h>
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+static void memory_error_and_abort ();
+
+/* **************************************************************** */
+/*								    */
+/*		   Memory Allocation and Deallocation.		    */
+/*								    */
+/* **************************************************************** */
+
+/* Return a pointer to free()able block of memory large enough
+   to hold BYTES number of bytes.  If the memory cannot be allocated,
+   print an error message and abort. */
+char *
+xmalloc (bytes)
+     int bytes;
+{
+  char *temp;
+
+  temp = (char *)malloc (bytes);
+  if (temp == 0)
+    memory_error_and_abort ("xmalloc");
+  return (temp);
+}
+
+char *
+xrealloc (pointer, bytes)
+     char *pointer;
+     int bytes;
+{
+  char *temp;
+
+  temp = pointer ? (char *)realloc (pointer, bytes) : (char *)malloc (bytes);
+
+  if (temp == 0)
+    memory_error_and_abort ("xrealloc");
+  return (temp);
+}
+
+static void
+memory_error_and_abort (fname)
+     char *fname;
+{
+  fprintf (stderr, "%s: out of virtual memory\n", fname);
+  exit (2);
+}
+
+/* Use this as the function to call when adding unwind protects so we
+   don't need to know what free() returns. */
+void
+xfree (string)
+     char *string;
+{
+  if (string)
+    free (string);
+}