remove pcre, add support for bundled pcre2

1 files changed, 0 insertions, 753 deletions

diff --git a/pcre/NEWS b/pcre/NEWS
deleted file mode 100644
index 0f184081740..00000000000
--- a/pcre/NEWS
+++ /dev/null
@@ -1,753 +0,0 @@
-News about PCRE releases
-------------------------
-
-Note that this library (now called PCRE1) is now being maintained for bug fixes
-only. New projects are advised to use the new PCRE2 libraries.
-
-
-Release 8.43 23-February-2019
------------------------------
-
-This is a bug-fix release.
-
-
-Release 8.42 20-March-2018
---------------------------
-
-This is a bug-fix release.
-
-
-Release 8.41 13-June-2017
--------------------------
-
-This is a bug-fix release.
-
-
-Release 8.40 11-January-2017
-----------------------------
-
-This is a bug-fix release.
-
-
-Release 8.39 14-June-2016
--------------------------
-
-Some appropriate PCRE2 JIT improvements have been retro-fitted to PCRE1. Apart
-from that, this is another bug-fix release. Note that this library (now called
-PCRE1) is now being maintained for bug fixes only. New projects are advised to
-use the new PCRE2 libraries.
-
-
-Release 8.38 23-November-2015
------------------------------
-
-This is bug-fix release. Note that this library (now called PCRE1) is now being
-maintained for bug fixes only. New projects are advised to use the new PCRE2
-libraries.
-
-
-Release 8.37 28-April-2015
---------------------------
-
-This is bug-fix release. Note that this library (now called PCRE1) is now being
-maintained for bug fixes only. New projects are advised to use the new PCRE2
-libraries.
-
-
-Release 8.36 26-September-2014
-------------------------------
-
-This is primarily a bug-fix release. However, in addition, the Unicode data
-tables have been updated to Unicode 7.0.0.
-
-
-Release 8.35 04-April-2014
---------------------------
-
-There have been performance improvements for classes containing non-ASCII
-characters and the "auto-possessification" feature has been extended. Other
-minor improvements have been implemented and bugs fixed. There is a new callout
-feature to enable applications to do detailed stack checks at compile time, to
-avoid running out of stack for deeply nested parentheses. The JIT compiler has
-been extended with experimental support for ARM-64, MIPS-64, and PPC-LE.
-
-
-Release 8.34 15-December-2013
------------------------------
-
-As well as fixing the inevitable bugs, performance has been improved by
-refactoring and extending the amount of "auto-possessification" that PCRE does.
-Other notable changes:
-
-.  Implemented PCRE_INFO_MATCH_EMPTY, which yields 1 if the pattern can match
-   an empty string. If it can, pcretest shows this in its information output.
-
-.  A back reference to a named subpattern when there is more than one of the
-   same name now checks them in the order in which they appear in the pattern.
-   The first one that is set is used for the reference. Previously only the
-   first one was inspected. This change makes PCRE more compatible with Perl.
-
-.  Unicode character properties were updated from Unicode 6.3.0.
-
-.  The character VT has been added to the set of characters that match \s and
-   are generally treated as white space, following this same change in Perl
-   5.18. There is now no difference between "Perl space" and "POSIX space".
-
-.  Perl has changed its handling of \8 and \9. If there is no previously
-   encountered capturing group of those numbers, they are treated as the
-   literal characters 8 and 9 instead of a binary zero followed by the
-   literals. PCRE now does the same.
-
-.  Following Perl, added \o{} to specify codepoints in octal, making it
-   possible to specify values greater than 0777 and also making them
-   unambiguous.
-
-.  In UCP mode, \s was not matching two of the characters that Perl matches,
-   namely NEL (U+0085) and MONGOLIAN VOWEL SEPARATOR (U+180E), though they
-   were matched by \h.
-
-.  Add JIT support for the 64 bit TileGX architecture.
-
-.  Upgraded the handling of the POSIX classes [:graph:], [:print:], and
-   [:punct:] when PCRE_UCP is set so as to include the same characters as Perl
-   does in Unicode mode.
-
-.  Perl no longer allows group names to start with digits, so I have made this
-   change also in PCRE.
-
-.  Added support for [[:<:]] and [[:>:]] as used in the BSD POSIX library to
-   mean "start of word" and "end of word", respectively, as a transition aid.
-
-
-Release 8.33 28-May-2013
---------------------------
-
-A number of bugs are fixed, and some performance improvements have been made.
-There are also some new features, of which these are the most important:
-
-.  The behaviour of the backtracking verbs has been rationalized and
-   documented in more detail.
-
-.  JIT now supports callouts and all of the backtracking verbs.
-
-.  Unicode validation has been updated in the light of Unicode Corrigendum #9,
-   which points out that "non characters" are not "characters that may not
-   appear in Unicode strings" but rather "characters that are reserved for
-   internal use and have only local meaning".
-
-.  (*LIMIT_MATCH=d) and (*LIMIT_RECURSION=d) have been added so that the
-   creator of a pattern can specify lower (but not higher) limits for the
-   matching process.
-
-.  The PCRE_NEVER_UTF option is available to prevent pattern-writers from using
-   the (*UTF) feature, as this could be a security issue.
-
-
-Release 8.32 30-November-2012
------------------------------
-
-This release fixes a number of bugs, but also has some new features. These are
-the highlights:
-
-.  There is now support for 32-bit character strings and UTF-32. Like the
-   16-bit support, this is done by compiling a separate 32-bit library.
-
-.  \X now matches a Unicode extended grapheme cluster.
-
-.  Case-independent matching of Unicode characters that have more than one
-   "other case" now makes all three (or more) characters equivalent. This
-   applies, for example, to Greek Sigma, which has two lowercase versions.
-
-.  Unicode character properties are updated to Unicode 6.2.0.
-
-.  The EBCDIC support, which had decayed, has had a spring clean.
-
-.  A number of JIT optimizations have been added, which give faster JIT
-   execution speed. In addition, a new direct interface to JIT execution is
-   available. This bypasses some of the sanity checks of pcre_exec() to give a
-   noticeable speed-up.
-
-.  A number of issues in pcregrep have been fixed, making it more compatible
-   with GNU grep. In particular, --exclude and --include (and variants) apply
-   to all files now, not just those obtained from scanning a directory
-   recursively. In Windows environments, the default action for directories is
-   now "skip" instead of "read" (which provokes an error).
-
-.  If the --only-matching (-o) option in pcregrep is specified multiple
-   times, each one causes appropriate output. For example, -o1 -o2 outputs the
-   substrings matched by the 1st and 2nd capturing parentheses. A separating
-   string can be specified by --om-separator (default empty).
-
-.  When PCRE is built via Autotools using a version of gcc that has the
-   "visibility" feature, it is used to hide internal library functions that are
-   not part of the public API.
-
-
-Release 8.31 06-July-2012
--------------------------
-
-This is mainly a bug-fixing release, with a small number of developments:
-
-. The JIT compiler now supports partial matching and the (*MARK) and
-  (*COMMIT) verbs.
-
-. PCRE_INFO_MAXLOOKBEHIND can be used to find the longest lookbehind in a
-  pattern.
-
-. There should be a performance improvement when using the heap instead of the
-  stack for recursion.
-
-. pcregrep can now be linked with libedit as an alternative to libreadline.
-
-. pcregrep now has a --file-list option where the list of files to scan is
-  given as a file.
-
-. pcregrep now recognizes binary files and there are related options.
-
-. The Unicode tables have been updated to 6.1.0.
-
-As always, the full list of changes is in the ChangeLog file.
-
-
-Release 8.30 04-February-2012
------------------------------
-
-Release 8.30 introduces a major new feature: support for 16-bit character
-strings, compiled as a separate library. There are a few changes to the
-8-bit library, in addition to some bug fixes.
-
-. The pcre_info() function, which has been obsolete for over 10 years, has
-  been removed.
-
-. When a compiled pattern was saved to a file and later reloaded on a host
-  with different endianness, PCRE used automatically to swap the bytes in some
-  of the data fields. With the advent of the 16-bit library, where more of this
-  swapping is needed, it is no longer done automatically. Instead, the bad
-  endianness is detected and a specific error is given. The user can then call
-  a new function called pcre_pattern_to_host_byte_order() (or an equivalent
-  16-bit function) to do the swap.
-
-. In UTF-8 mode, the values 0xd800 to 0xdfff are not legal Unicode
-  code points and are now faulted. (They are the so-called "surrogates"
-  that are reserved for coding high values in UTF-16.)
-
-
-Release 8.21 12-Dec-2011
-------------------------
-
-This is almost entirely a bug-fix release. The only new feature is the ability
-to obtain the size of the memory used by the JIT compiler.
-
-
-Release 8.20 21-Oct-2011
-------------------------
-
-The main change in this release is the inclusion of Zoltan Herczeg's
-just-in-time compiler support, which can be accessed by building PCRE with
---enable-jit. Large performance benefits can be had in many situations. 8.20
-also fixes an unfortunate bug that was introduced in 8.13 as well as tidying up
-a number of infelicities and differences from Perl.
-
-
-Release 8.13 16-Aug-2011
-------------------------
-
-This is mainly a bug-fix release. There has been a lot of internal refactoring.
-The Unicode tables have been updated. The only new feature in the library is
-the passing of *MARK information to callouts. Some additions have been made to
-pcretest to make testing easier and more comprehensive. There is a new option
-for pcregrep to adjust its internal buffer size.
-
-
-Release 8.12 15-Jan-2011
-------------------------
-
-This release fixes some bugs in pcregrep, one of which caused the tests to fail
-on 64-bit big-endian systems. There are no changes to the code of the library.
-
-
-Release 8.11 10-Dec-2010
-------------------------
-
-A number of bugs in the library and in pcregrep have been fixed. As always, see
-ChangeLog for details. The following are the non-bug-fix changes:
-
-. Added --match-limit and --recursion-limit to pcregrep.
-
-. Added an optional parentheses number to the -o and --only-matching options
-  of pcregrep.
-
-. Changed the way PCRE_PARTIAL_HARD affects the matching of $, \z, \Z, \b, and
-  \B.
-
-. Added PCRE_ERROR_SHORTUTF8 to make it possible to distinguish between a
-  bad UTF-8 sequence and one that is incomplete when using PCRE_PARTIAL_HARD.
-
-. Recognize (*NO_START_OPT) at the start of a pattern to set the PCRE_NO_
-  START_OPTIMIZE option, which is now allowed at compile time
-
-
-Release 8.10 25-Jun-2010
-------------------------
-
-There are two major additions: support for (*MARK) and friends, and the option
-PCRE_UCP, which changes the behaviour of \b, \d, \s, and \w (and their
-opposites) so that they make use of Unicode properties. There are also a number
-of lesser new features, and several bugs have been fixed. A new option,
---line-buffered, has been added to pcregrep, for use when it is connected to
-pipes.
-
-
-Release 8.02 19-Mar-2010
-------------------------
-
-Another bug-fix release.
-
-
-Release 8.01 19-Jan-2010
-------------------------
-
-This is a bug-fix release. Several bugs in the code itself and some bugs and
-infelicities in the build system have been fixed.
-
-
-Release 8.00 19-Oct-09
-----------------------
-
-Bugs have been fixed in the library and in pcregrep. There are also some
-enhancements. Restrictions on patterns used for partial matching have been
-removed, extra information is given for partial matches, the partial matching
-process has been improved, and an option to make a partial match override a
-full match is available. The "study" process has been enhanced by finding a
-lower bound matching length. Groups with duplicate numbers may now have
-duplicated names without the use of PCRE_DUPNAMES. However, they may not have
-different names. The documentation has been revised to reflect these changes.
-The version number has been expanded to 3 digits as it is clear that the rate
-of change is not slowing down.
-
-
-Release 7.9 11-Apr-09
----------------------
-
-Mostly bugfixes and tidies with just a couple of minor functional additions.
-
-
-Release 7.8 05-Sep-08
----------------------
-
-More bug fixes, plus a performance improvement in Unicode character property
-lookup.
-
-
-Release 7.7 07-May-08
----------------------
-
-This is once again mainly a bug-fix release, but there are a couple of new
-features.
-
-
-Release 7.6 28-Jan-08
----------------------
-
-The main reason for having this release so soon after 7.5 is because it fixes a
-potential buffer overflow problem in pcre_compile() when run in UTF-8 mode. In
-addition, the CMake configuration files have been brought up to date.
-
-
-Release 7.5 10-Jan-08
----------------------
-
-This is mainly a bug-fix release. However the ability to link pcregrep with
-libz or libbz2 and the ability to link pcretest with libreadline have been
-added. Also the --line-offsets and --file-offsets options were added to
-pcregrep.
-
-
-Release 7.4 21-Sep-07
----------------------
-
-The only change of specification is the addition of options to control whether
-\R matches any Unicode line ending (the default) or just CR, LF, and CRLF.
-Otherwise, the changes are bug fixes and a refactoring to reduce the number of
-relocations needed in a shared library. There have also been some documentation
-updates, in particular, some more information about using CMake to build PCRE
-has been added to the NON-UNIX-USE file.
-
-
-Release 7.3 28-Aug-07
----------------------
-
-Most changes are bug fixes. Some that are not:
-
-1. There is some support for Perl 5.10's experimental "backtracking control
-   verbs" such as (*PRUNE).
-
-2. UTF-8 checking is now as per RFC 3629 instead of RFC 2279; this is more
-   restrictive in the strings it accepts.
-
-3. Checking for potential integer overflow has been made more dynamic, and as a
-   consequence there is no longer a hard limit on the size of a subpattern that
-   has a limited repeat count.
-
-4. When CRLF is a valid line-ending sequence, pcre_exec() and pcre_dfa_exec()
-   no longer advance by two characters instead of one when an unanchored match
-   fails at CRLF if there are explicit CR or LF matches within the pattern.
-   This gets rid of some anomalous effects that previously occurred.
-
-5. Some PCRE-specific settings for varying the newline options at the start of
-   a pattern have been added.
-
-
-Release 7.2 19-Jun-07
----------------------
-
-WARNING: saved patterns that were compiled by earlier versions of PCRE must be
-recompiled for use with 7.2 (necessitated by the addition of \K, \h, \H, \v,
-and \V).
-
-Correction to the notes for 7.1: the note about shared libraries for Windows is
-wrong. Previously, three libraries were built, but each could function
-independently. For example, the pcreposix library also included all the
-functions from the basic pcre library. The change is that the three libraries
-are no longer independent. They are like the Unix libraries. To use the
-pcreposix functions, for example, you need to link with both the pcreposix and
-the basic pcre library.
-
-Some more features from Perl 5.10 have been added:
-
-  (?-n) and (?+n) relative references for recursion and subroutines.
-
-  (?(-n) and (?(+n) relative references as conditions.
-
-  \k{name} and \g{name} are synonyms for \k<name>.
-
-  \K to reset the start of the matched string; for example, (foo)\Kbar
-  matches bar preceded by foo, but only sets bar as the matched string.
-
-  (?| introduces a group where the capturing parentheses in each alternative
-  start from the same number; for example, (?|(abc)|(xyz)) sets capturing
-  parentheses number 1 in both cases.
-
-  \h, \H, \v, \V match horizontal and vertical whitespace, respectively.
-
-
-Release 7.1 24-Apr-07
----------------------
-
-There is only one new feature in this release: a linebreak setting of
-PCRE_NEWLINE_ANYCRLF. It is a cut-down version of PCRE_NEWLINE_ANY, which
-recognizes only CRLF, CR, and LF as linebreaks.
-
-A few bugs are fixed (see ChangeLog for details), but the major change is a
-complete re-implementation of the build system. This now has full Autotools
-support and so is now "standard" in some sense. It should help with compiling
-PCRE in a wide variety of environments.
-
-NOTE: when building shared libraries for Windows, three dlls are now built,
-called libpcre, libpcreposix, and libpcrecpp. Previously, everything was
-included in a single dll.
-
-Another important change is that the dftables auxiliary program is no longer
-compiled and run at "make" time by default. Instead, a default set of character
-tables (assuming ASCII coding) is used. If you want to use dftables to generate
-the character tables as previously, add --enable-rebuild-chartables to the
-"configure" command. You must do this if you are compiling PCRE to run on a
-system that uses EBCDIC code.
-
-There is a discussion about character tables in the README file. The default is
-not to use dftables so that that there is no problem when cross-compiling.
-
-
-Release 7.0 19-Dec-06
----------------------
-
-This release has a new major number because there have been some internal
-upheavals to facilitate the addition of new optimizations and other facilities,
-and to make subsequent maintenance and extension easier. Compilation is likely
-to be a bit slower, but there should be no major effect on runtime performance.
-Previously compiled patterns are NOT upwards compatible with this release. If
-you have saved compiled patterns from a previous release, you will have to
-re-compile them. Important changes that are visible to users are:
-
-1. The Unicode property tables have been updated to Unicode 5.0.0, which adds
-   some more scripts.
-
-2. The option PCRE_NEWLINE_ANY causes PCRE to recognize any Unicode newline
-   sequence as a newline.
-
-3. The \R escape matches a single Unicode newline sequence as a single unit.
-
-4. New features that will appear in Perl 5.10 are now in PCRE. These include
-   alternative Perl syntax for named parentheses, and Perl syntax for
-   recursion.
-
-5. The C++ wrapper interface has been extended by the addition of a
-   QuoteMeta function and the ability to allow copy construction and
-   assignment.
-
-For a complete list of changes, see the ChangeLog file.
-
-
-Release 6.7 04-Jul-06
----------------------
-
-The main additions to this release are the ability to use the same name for
-multiple sets of parentheses, and support for CRLF line endings in both the
-library and pcregrep (and in pcretest for testing).
-
-Thanks to Ian Taylor, the stack usage for many kinds of pattern has been
-significantly reduced for certain subject strings.
-
-
-Release 6.5 01-Feb-06
----------------------
-
-Important changes in this release:
-
-1. A number of new features have been added to pcregrep.
-
-2. The Unicode property tables have been updated to Unicode 4.1.0, and the
-   supported properties have been extended with script names such as "Arabic",
-   and the derived properties "Any" and "L&". This has necessitated a change to
-   the interal format of compiled patterns. Any saved compiled patterns that
-   use \p or \P must be recompiled.
-
-3. The specification of recursion in patterns has been changed so that all
-   recursive subpatterns are automatically treated as atomic groups. Thus, for
-   example, (?R) is treated as if it were (?>(?R)). This is necessary because
-   otherwise there are situations where recursion does not work.
-
-See the ChangeLog for a complete list of changes, which include a number of bug
-fixes and tidies.
-
-
-Release 6.0 07-Jun-05
----------------------
-
-The release number has been increased to 6.0 because of the addition of several
-major new pieces of functionality.
-
-A new function, pcre_dfa_exec(), which implements pattern matching using a DFA
-algorithm, has been added. This has a number of advantages for certain cases,
-though it does run more slowly, and lacks the ability to capture substrings. On
-the other hand, it does find all matches, not just the first, and it works
-better for partial matching. The pcrematching man page discusses the
-differences.
-
-The pcretest program has been enhanced so that it can make use of the new
-pcre_dfa_exec() matching function and the extra features it provides.
-
-The distribution now includes a C++ wrapper library. This is built
-automatically if a C++ compiler is found. The pcrecpp man page discusses this
-interface.
-
-The code itself has been re-organized into many more files, one for each
-function, so it no longer requires everything to be linked in when static
-linkage is used. As a consequence, some internal functions have had to have
-their names exposed. These functions all have names starting with _pcre_. They
-are undocumented, and are not intended for use by outside callers.
-
-The pcregrep program has been enhanced with new functionality such as
-multiline-matching and options for output more matching context. See the
-ChangeLog for a complete list of changes to the library and the utility
-programs.
-
-
-Release 5.0 13-Sep-04
----------------------
-
-The licence under which PCRE is released has been changed to the more
-conventional "BSD" licence.
-
-In the code, some bugs have been fixed, and there are also some major changes
-in this release (which is why I've increased the number to 5.0). Some changes
-are internal rearrangements, and some provide a number of new facilities. The
-new features are:
-
-1. There's an "automatic callout" feature that inserts callouts before every
-   item in the regex, and there's a new callout field that gives the position
-   in the pattern - useful for debugging and tracing.
-
-2. The extra_data structure can now be used to pass in a set of character
-   tables at exec time. This is useful if compiled regex are saved and re-used
-   at a later time when the tables may not be at the same address. If the
-   default internal tables are used, the pointer saved with the compiled
-   pattern is now set to NULL, which means that you don't need to do anything
-   special unless you are using custom tables.
-
-3. It is possible, with some restrictions on the content of the regex, to
-   request "partial" matching. A special return code is given if all of the
-   subject string matched part of the regex. This could be useful for testing
-   an input field as it is being typed.
-
-4. There is now some optional support for Unicode character properties, which
-   means that the patterns items such as \p{Lu} and \X can now be used. Only
-   the general category properties are supported. If PCRE is compiled with this
-   support, an additional 90K data structure is include, which increases the
-   size of the library dramatically.
-
-5. There is support for saving compiled patterns and re-using them later.
-
-6. There is support for running regular expressions that were compiled on a
-   different host with the opposite endianness.
-
-7. The pcretest program has been extended to accommodate the new features.
-
-The main internal rearrangement is that sequences of literal characters are no
-longer handled as strings. Instead, each character is handled on its own. This
-makes some UTF-8 handling easier, and makes the support of partial matching
-possible. Compiled patterns containing long literal strings will be larger as a
-result of this change; I hope that performance will not be much affected.
-
-
-Release 4.5 01-Dec-03
----------------------
-
-Again mainly a bug-fix and tidying release, with only a couple of new features:
-
-1. It's possible now to compile PCRE so that it does not use recursive
-function calls when matching. Instead it gets memory from the heap. This slows
-things down, but may be necessary on systems with limited stacks.
-
-2. UTF-8 string checking has been tightened to reject overlong sequences and to
-check that a starting offset points to the start of a character. Failure of the
-latter returns a new error code: PCRE_ERROR_BADUTF8_OFFSET.
-
-3. PCRE can now be compiled for systems that use EBCDIC code.
-
-
-Release 4.4 21-Aug-03
----------------------
-
-This is mainly a bug-fix and tidying release. The only new feature is that PCRE
-checks UTF-8 strings for validity by default. There is an option to suppress
-this, just in case anybody wants that teeny extra bit of performance.
-
-
-Releases 4.1 - 4.3
-------------------
-
-Sorry, I forgot about updating the NEWS file for these releases. Please take a
-look at ChangeLog.
-
-
-Release 4.0 17-Feb-03
----------------------
-
-There have been a lot of changes for the 4.0 release, adding additional
-functionality and mending bugs. Below is a list of the highlights of the new
-functionality. For full details of these features, please consult the
-documentation. For a complete list of changes, see the ChangeLog file.
-
-1. Support for Perl's \Q...\E escapes.
-
-2. "Possessive quantifiers" ?+, *+, ++, and {,}+ which come from Sun's Java
-package. They provide some syntactic sugar for simple cases of "atomic
-grouping".
-
-3. Support for the \G assertion. It is true when the current matching position
-is at the start point of the match.
-
-4. A new feature that provides some of the functionality that Perl provides
-with (?{...}). The facility is termed a "callout". The way it is done in PCRE
-is for the caller to provide an optional function, by setting pcre_callout to
-its entry point. To get the function called, the regex must include (?C) at
-appropriate points.
-
-5. Support for recursive calls to individual subpatterns. This makes it really
-easy to get totally confused.
-
-6. Support for named subpatterns. The Python syntax (?P<name>...) is used to
-name a group.
-
-7. Several extensions to UTF-8 support; it is now fairly complete. There is an
-option for pcregrep to make it operate in UTF-8 mode.
-
-8. The single man page has been split into a number of separate man pages.
-These also give rise to individual HTML pages which are put in a separate
-directory. There is an index.html page that lists them all. Some hyperlinking
-between the pages has been installed.
-
-
-Release 3.5 15-Aug-01
----------------------
-
-1. The configuring system has been upgraded to use later versions of autoconf
-and libtool. By default it builds both a shared and a static library if the OS
-supports it. You can use --disable-shared or --disable-static on the configure
-command if you want only one of them.
-
-2. The pcretest utility is now installed along with pcregrep because it is
-useful for users (to test regexs) and by doing this, it automatically gets
-relinked by libtool. The documentation has been turned into a man page, so
-there are now .1, .txt, and .html versions in /doc.
-
-3. Upgrades to pcregrep:
-   (i)   Added long-form option names like gnu grep.
-   (ii)  Added --help to list all options with an explanatory phrase.
-   (iii) Added -r, --recursive to recurse into sub-directories.
-   (iv)  Added -f, --file to read patterns from a file.
-
-4. Added --enable-newline-is-cr and --enable-newline-is-lf to the configure
-script, to force use of CR or LF instead of \n in the source. On non-Unix
-systems, the value can be set in config.h.
-
-5. The limit of 200 on non-capturing parentheses is a _nesting_ limit, not an
-absolute limit. Changed the text of the error message to make this clear, and
-likewise updated the man page.
-
-6. The limit of 99 on the number of capturing subpatterns has been removed.
-The new limit is 65535, which I hope will not be a "real" limit.
-
-
-Release 3.3 01-Aug-00
----------------------
-
-There is some support for UTF-8 character strings. This is incomplete and
-experimental. The documentation describes what is and what is not implemented.
-Otherwise, this is just a bug-fixing release.
-
-
-Release 3.0 01-Feb-00
----------------------
-
-1. A "configure" script is now used to configure PCRE for Unix systems. It
-builds a Makefile, a config.h file, and the pcre-config script.
-
-2. PCRE is built as a shared library by default.
-
-3. There is support for POSIX classes such as [:alpha:].
-
-5. There is an experimental recursion feature.
-
-----------------------------------------------------------------------------
-          IMPORTANT FOR THOSE UPGRADING FROM VERSIONS BEFORE 2.00
-
-Please note that there has been a change in the API such that a larger
-ovector is required at matching time, to provide some additional workspace.
-The new man page has details. This change was necessary in order to support
-some of the new functionality in Perl 5.005.
-
-          IMPORTANT FOR THOSE UPGRADING FROM VERSION 2.00
-
-Another (I hope this is the last!) change has been made to the API for the
-pcre_compile() function. An additional argument has been added to make it
-possible to pass over a pointer to character tables built in the current
-locale by pcre_maketables(). To use the default tables, this new argument
-should be passed as NULL.
-
-          IMPORTANT FOR THOSE UPGRADING FROM VERSION 2.05
-
-Yet another (and again I hope this really is the last) change has been made
-to the API for the pcre_exec() function. An additional argument has been
-added to make it possible to start the match other than at the start of the
-subject string. This is important if there are lookbehinds. The new man
-page has the details, but you just want to convert existing programs, all
-you need to do is to stick in a new fifth argument to pcre_exec(), with a
-value of zero. For example, change
-
-  pcre_exec(pattern, extra, subject, length, options, ovec, ovecsize)
-to
-  pcre_exec(pattern, extra, subject, length, 0, options, ovec, ovecsize)
-
-****