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@@ -0,0 +1,893 @@ +This file describes recent user-visible changes in groff. Bug fixes +are not described. There are more details in the man pages. + +VERSION 1.16 +============ + +Groff +----- + +Some additions to the font description files have been implemented for +better support of HTML output: + + The new format of lines in the `charset' subsection of font description + files is + + name metrics type code [entity_name] [-- comment] + + Currently, only the font description files in devhtml use the optional + entity_name string to define the glyph entities in HTML. Everything + after the entity_name field is ignored; in case this field isn't used, + two hyphen characters are now necessary to start a comment. + + Two new requests are available in DESC files (currently used only with + grohtml): + + use_charnames_in_special + This command indicates that troff should encode named characters + inside special commands. + + pass_filenames + requests that troff tells the driver the source file name being + processed. This is achieved by another tcommand: `F filename'. + +Troff +----- + +To solve a problem with the .PSPIC macro which needs the `-U' switch of +troff to access an external program (psbb), a new request .psbb is now +available to get the bounding box of a PostScript image file. The values +(in PostScript units) are returned in the new read-only number registers +`llx', `lly', `urx', and `ury'. Consequently, .PSPIC has been adapted to +use the new request, and the psbb program has been removed. + +A new number predefined writable number register, `year', has been added. +It contains the current year. + +A new read-only register, `.Y', has been added. It contains the revision +number of the groff package. + +`\fP' now behaves as expected in situations like the following where the +font `foo' is undefined: + + .B bold text + normal text \f[foo]bar\fP normal text + +Previously, the text after \fP has appeared as bold. + +The macro files `tmac.a4' (for specifying A4 paper format) and `tmac.trace' +(a debugging aid) are now installed also. + +A new resource file, `troffrc-end', is now available. It is invoked after +all user-specified macros. Currently used by the html device to include +tmac.html; thus no need for users to specify -mhtml anymore. + +Grotty +------ + +Bruno Haible <haible@clisp.cons.org> contributed support for UTF8 output. + +Grohtml +------- + +Added .LINE macro to tmac.arkup. + +The obsolete `.LINK' macro has been removed. + +.URL, .FTP, and .MAILTO now accept an optional third argument which will +be immediately appended to the second argument (to be used with punctuation, +for example). + +Pic +--- + +Added the `srand' command to set the seed for a new sequence of the +pseudo-random numbers to be returned by `rand'. + +VERSION 1.13, 1.14, 1.15 +======================== + +Bug fixes only; no user-visible changes. + +VERSION 1.12 +============ + +Finally, there are new maintainers for groff. Mailing lists and a CVS +repository are available also. See the file README for details. Not +all reported bug could be fixed, so please send mails again if +something is still not working. + +Most of the installation problems should have vanished now (most +notably the $(tmac_wrap) bug). + +There is now a man page called groff_man.man which documents the +basics of the -man macros. It has been originally written by Susan +G. Kleinmann <sgk@debian.org>. + +A (still incomplete) groff reference manual in texinfo format +originally contributed by Trent A. Fisher <trent@gnurd.portland.or.us>. + +me.man and msafer.man have been renamed to groff_me.man +resp. groff_msafer.man for consistency. + +Default strings for macros in doc-common resp. tmac.an no longer +contain the word `UNIX'. + +groff should now be Y2k safe (fixes contributed by Paul Eggert +<eggert@twinsun.com>). + +Following the GNU standards, groff will now use the prefix +`/usr/local/' as the default instead of replacing an existent groff +binary. + +groff, troff, nroff, and pic now support the -U flag to activate unsafe +behaviour (without -msafer); the -S flag for using the -msafer macros +is now the default. + +Grohtml +------- + +This is a new output device for producing HTML output contributed by +Gaius Mulley <gaius@glam.ac.uk>. It is still very alpha but has been +included into the distribution so that a lot of people have a chance +to test it. Bug reports are highly welcome. + +Grolj4 +------ + +Duplex printing support has been contributed by Jeffrey Copeland +<jeff@opennt.com>. + +Soelim +------ + +Added -I option for defining include paths (patch contributed by Peter +Miller <peterm@jna.com.au>). + +Gxditview +--------- + +Fallback resources added (patch contributed by Larry Jones +<larry.jones@sdrc.com>). + +Will now support 8 gray levels. + +mm +-- + +New version 1.32 (contributed by Joergen Haegg <jh@axis.com>). + +VERSION 1.11 +============ + +Complete documentation for pic is now in the file doc/pic.ms. It was +contributed by Eric S. Raymond, <esr@thyrsus.com>, who is emphatically +*not* volunteering to take over groff as he is way overworked with +half a dozen other projects. + +VERSION 1.10 +============ + +The directory where data files are installed has been changed from +/usr/local/lib/groff to /usr/local/share/groff to comply with the +latest GNU coding standards. + +By default groff programs with Unix equivalents are installed with a +"g" prefix unless there is an existing (non-groff) troff installation. + +A new approach is used to make system macro packages available to +groff. Instead of simply including /usr/lib/tmac in the list of +directories searched by groff, the installation process creates for +each system macro package a wrapper macro package in the groff macro +directory that references the system macro package. The groff macro +packages are now installed with a leading "g" prefix if there is a +system version of the same macro package, and otherwise without the +"g" prefix, with the exception that the groff version of -me which is +always installed as -me. + +There is a new device, lj4, for the HP LaserJet 4 (and PCL5 +compatibles). + +Groff +----- + +groff has a -S option that prevents the use of unsafe features in pic +and troff. This uses a new -S option of pic and the -msafer macros +for troff. + +Troff +----- + +The `blm' request specifies a macro to be invoked when a blank line is +encountered. + +Pic +--- + +A -S (safer) option disables the sh command. + +Grops +----- + +The -m option enables manual feed. + +VERSION 1.09 +============ + +\(rn will now produce a character that has the traditional metrics, +and will form corners with \(ul and \(br. This means that it will not +align properly with \(sr. Instead there's a new character +\[radicalex] which aligns with \(sr; this is used by eqn for doing +square roots. + +Troff +----- + +The `pso' request allows you to read from the standard output of a +command. + +Grops +----- + +The PSPIC macro has options to allow the horizontal alignment of the +graphic to be specified. + +VERSION 1.08 +============ + +Troff +----- + +The escape sequence \V[xxx] will interpolate the value of the +environment variable xxx. + +Tbl +--- + +The decimalpoint option can be used to specify the character to be +recognized as the decimal point character in place of the default +period. + +VERSION 1.07 +============ + +Groff +----- + +The environment variable GROFF_COMMAND_PREFIX can be used to control +whether groff looks for `gtroff' or `troff' (similarily for the +preprocessors.) + +Troff +----- + +Multilingual hyphenation is supported by new `hpf' and `hla' requests, +and by a `\n[.hla]' number register. The -H option has been removed. +Files of hyphenation patterns can have comments. + +When a font cannot be found, troff gives a warning (of type `font', +enabled by default) instead of an error. + +There's a new request `trnt' that's like `tr' except that it doesn't +apply to text transparently throughput into a diversion with \!. + +Tbl +--- + +There is a `nokeep' option which tells tbl not to use diversions to +try to keep the table on one page. + +Eqn +--- + +Setting the parameter `nroff' to a non-zero value causes `ndefine' to +behave like `define' and `tdefine' to be ignored. This is done by +eqnrc when the current device is ascii or latin1. There's a `neqn' +script that just does `eqn -Tascii'. + +Grotty +------ + +grotty uses whatever page length was specified using the `pl' request +rather than using the paperlength command in the DESC file. The +paperwidth command in the DESC file is also ignored. + +VERSION 1.06 +============ + +The programs in groff that have Unix counterparts can now be installed +without a leading `g' prefix. See the `g' variable in the Makefile. + +The g?nroff script simulates the nroff command using groff. + +New special characters \(+h, \(+f, \(+p, \(Fn, \(Bq, \(bq, \(aq, \(lz, +\(an. See groff_char(7). + +^L is now a legal input character. + +Groff +----- + +The Xps pseudo-device has disappeared. Instead there is a new -X +option that tells groff to use gxditview instead of the usual +postprocessor. (So instead of -TXps, use -XTps or just -X if your +default device is ps.) + +The postprocessor to be used for a particular device is now specified +by a `postpro' command in the DESC file rather than being compiled +into groff. Similarly the command to be used for printing (with the +-l option) is now specified by a `print' command in the DESC file. + +The groff command no longer specifies eqnchar as an input file for +eqn. Instead eqn automatically loads a file `eqnrc'. The groff +command no longer passes the -D option to eqn. Instead eqnrc sets the +draw_lines parameter. + +The groff command no longer tells troff to load a device-specific +macro file. This is handled instead by the `troffrc' file, which is +always loaded by troff. + +The shell script version of groff has been removed. + +Troff +----- + +The `rchar' request removes a character definition established with `char'. + +Compatibility mode is disabled and the escape character is set to `\' +while a character definition is being processed. + +The `\#' escape sequence is like `\"' except that the terminating +newline is ignored. + +The `shc' request tells troff which character to insert (instead of +the default \(hy) when a word is hyphenated at a line break. + +A font name of 0 (zero) in the DESC file will cause no font to be +mounted on the corresponding font position. This is useful for +arranging that special fonts are mounted on positions on which users +are not likely explicitly to mount fonts. All groff devices now avoid +initially mounting fonts on positions 5-9. + +The `do' request allows a single request or macro to be interpreted +with compatibility mode disabled. + +troff automatically loads a file `troffrc' before any other input file. +This can be prevented with the -R option. This file is responsible +for loading the device-specific macros. + +Pic +--- + +The -x option has been removed and a -n option has been added. By +default, pic now assumes that the postprocessor supports groff +extensions. The -n option tells pic to generate output that works +with ditroff drivers. The -z option now applies only to TeX mode. + +The -p option has been removed. Instead if the -n option is not +specified, pic generates output that uses \X'ps: ...' if the \n(0p +register is non-zero and tmac.ps sets this register to 1. + +In places where you could 1st or 5th you can now say `i'th or `i+1'th +(the quotes are required). + +Eqn +--- + +Eqn now automatically reads a file `eqnrc' from the macro directory. +This performs the same role that the eqnchar files used to. This can +be prevented by the -R option. + +Setting the draw_lines parameter to a non-zero value causes lines to +be drawn using \D rather than \l. The -D option is now obsolete. + +`uparrow', `downarrow' and `updownarrow' can be used with `left' and +`right'. + +The amount of extra space added before and after lines containing +equations can be controlled using the `body_height' and `body_depth' +parameters. + +Grops +----- + +Font description files have been regenerated from newer AFM files. +You can get access to the additional characters present in the text +fonts in newer PostScript printers by using -mpsnew. + +The default value of the -b option is specified by a `broken' command +in the DESC file. + +With the -g option, grops will generate PostScript code that guesses +the page height. This allows documents to be printed on both letter +(8.5x11) and A4 paper without change. + +Grodvi +------ + +ISO Latin-1 characters are available with -Tdvi. Format groff_char(7) +with groff -Tdvi for more information. + +Grotty +------ + +The -mtty-char macros contain additional character definitions for +use with grotty. + +Macros +------ + +In previous releases the groff -me macros treated the $r and $R number +registers in a way that was incompatible with the BSD -me macros. The +reason for this was that the approach used by the BSD -me macros does +not work with low resolution devices such as -TX75 and -TX100. +However, this caused problems with existing -me documents. In this +release, the vertical spacing is controlled by the $v and $V registers +which have the same meaning as $r and $R in earlier groff releases. +In addition, if the $r or $R register is set to a value that would be +correct for for the BSD -me macros and a low resolution device is not +being used, then an appropriate value for the $v or $V register will +be derived from the $r or $R register. + +The groff -me macros work with -C and (I think) with Unix troff. + +For backward compatibility with BSD -me, the \*{ and \*} strings are +also available as \*[ and \*]. Of course, \*[ will only be usable +with -C. + +The \*T string has been deleted. Use \*(Tm instead. + +Xditview +-------- + +The `n', Space and Return keys are bound to the Next Page action. The +`p', BackSpace and Delete keys are bound to the Previous Page action. +The `q' key is bound to the Quit action. + +The `r' key is bound to a rerasterize action that reruns groff, and +redisplays the current page. + +VERSION 1.05 +============ + +Pic +--- + +There is a alternative assignment operator `:=' which interacts +differently with blocks. + +There is a new command `command', which allows the values of variables +to be passed through to troff or TeX. + +The `print' command now accepts multiple arguments. + +String comparison expressions (using `==' or `!=') are allowed in more +contexts. + +Grotty +------ + +Horizontal and vertical lines drawn with \D'l ...' will be rendered +using -, | and + characters. This is intended to give reasonable +results with boxed tables. It won't work well with pic. + +Macros +------ + +The -mdoc macros have been upgraded to the version in the second +Berkeley networking release. This version is not completely +compatible with earlier versions; the old version is still available +as -mdoc.old. The grog script has been enhanced so that it can +usually determine whether a document requires the old or new versions. + +With -TX75, -TX100 and -TXps, the PSPIC macro will produce a box +around where the picture would appear with -Tps. + +VERSION 1.04 +============ + +An implementation of the -mm macros is included. + +The directory in which temporary files are created can be controlled +by setting the GROFF_TMPDIR or TMPDIR environment variables. + +Pic +--- + +Some MS-DOS support (see pic/make-dos-dist). + +Grops +----- + +There are two new \X commands (\X'ps: invis' and \X'ps: endinvis') +which make it possible to have substitute characters that are +displayed when previewing with -TXps but ignored when printing with +grops. + +Xditview +-------- + +Support for scalable fonts. + +VERSION 1.03 +============ + +No changes other than bug fixes. + +VERSION 1.02 +============ + +There is an implementation of refer and associated programs. groff -R +preprocesses with grefer; no mechanism is provided for passing +arguments to grefer because most grefer options have equivalent +commands which can be included in the file. grog also supports refer. + +There is an alternative perl implementation of the grog script. + +The code field in lines in the charset section of font description +files is now allowed to contain an arbitrary integer (previously it +was required to lie between 0 and 255). Currently grops and grodvi +use only the low order 8 bits of the value. Grodvi will use the +complete value; however, this is unlikely to be useful with +traditional TeX tools (.tfm files only allow 8 bit character codes.) + +Left and right double quotes can be obtained with \(lq and \(rq +respectively. + +There is a new program called pfbtops which translates PostScript +fonts in pfb format to ASCII. + +A slightly modified version of the Berkeley tmac.doc is included. + +Troff +----- + +In long escape names the closing ] is now required to be at the same +input level as the opening [. + +The \A'S' escape sequence returns 1 or 0 according as S is or is not +suitable for use as a name. + +\~ produces an unbreakable space that can be stretched when the line +is adjusted. + +The `mso' request is like the `so' request except that it searches for +the file in the same directories in which tmac.X is searched for when +the -mX option is given. + +The escape sequence `\R' is similar to the `nr' request. + +Eqn +--- + +A new `special' primitive allows you to add new types of unary +constructs by writing a troff macro. + +Pic +--- + +The implementation no longer uses gperf. + +Grops +----- + +The compile-time -DBROKEN_SPOOLER option has been replaced by a +BROKEN_SPOOLER_FLAGS option. This allows more precise control over +how grops should workaround broken spoolers and previewers. There is +a new -b option that can change this at run-time. + +Grops now generates PostScript that complies with version 3.0 of the +Document Structuring Convention. + +The resource management component of grops (the part that deals with +imported documents and downloadable fonts) has been rewritten and now +supports version 3.0 of the Document Structuring Conventions. The +%%DocumentFonts comment is no longer supported; you must use the +%%Document{Needed,Supplied}{Fonts,Resources} comments instead +(or as well.) + +tmac.psatk contains some macros that support the mechanism used by the +Andrew Toolkit for including PostScript graphics in troff documents. + +Xditview +-------- + +Parts of xditview have been rewritten so that it can be used with the +output of gtroff -Tps. groff -TXps will run gtroff -Tps with +gxditview. + +There is a new menu entry `Print' which brings up a dialog box for +specifying a command with which the file being previewed should be +printed. + +Xditview now uses imake. + +VERSION 1.01 +============ + +The groff command now understands the gtroff `-a' and `-i' options. + +With the `m' and `n' scale indicators, the scale factor is rounded +horizontally before being applied. This makes (almost) no difference +for devices with `hor' equal to 1, but it makes groff with -Tascii or +-Tlatin1 behave more like nroff in its treatment of these scale +indicators. Accordingly tmac.tty now calls the `nroff' request so +that the `n' condition will be true. + +The device-specific macros (tmac.ps, tmac.dvi, tmac.tty and tmac.X) +have been made to work at least somewhat with -C. In particular the +special characters defined by these macros now work with -C. + +groff -Tdvi -p will now pass pic the -x flag; this will enable filling +of arrowheads and boxes, provided that your dvi driver supports the +latest version of the tpic specials. + +Eqn +--- + +There is a new `-N' option that tells eqn not to allow newlines in +delimiters. This allows eqn to recover better from missing closing +delimiters. The groff command will pass on a `-N' option to eqn. + +Grops +----- + +You can now use psfig with grops. See the file ps/psfig.diff. I do +not recommend using psfig for new documents. + +The command \X'ps: file F' is similar to \X'ps: exec ...' except that +the PostScript code is read from the file F instead of being contained +within the \X command. This was added to support psfig. + +Grodvi +------ + +There are font files HB and HI corresponding to cmsssbx10 and cmssi10. + +Macros +------ + +The groff -me macros now work with the -C option. As a result, they +may also work with Unix nroff/troff. + +In -me, the $r and $R number registers now contain the line spacing as +a percentage of the pointsize expressed in units (normally about 120). +The previous definition was useless with low resolution devices such +as X75 and X100. + +VERSION 1.00 +============ + +A -ms-like macro-package is now included. + +The name for the Icelandic lowercase eth character has been changed +from \(-d to \(Sd. + +Troff +----- + +There is a new request `nroff', which makes the `n' built-in condition +true and the `t' built-in condition false; also a new request `troff' +which undoes the effect of the `nroff' request. This is intended only +for backward compatibility: it is usually better to test \n(.H or +\n(.V or to use the `c' built-in condition. + +The \R escape sequence has been deleted. Use \E instead. + +There are `break' and `continue' requests for use with the `while' +request. + +There is a request `hym' that can ensure that when the current +adjustment mode is not `b' a line will not be hyphenated if it is no +more than a given amount short, and a request `hys' that can ensure +that when the current adjustment mode is `b' a line will not be +hyphenated if it can be justified by adding no more than a given +amount of extra space to each word space. + +There is a request `rj' similar to `ce' that right justifies lines. + +A warning of type `space' will be given when a call is made to an +undefined request or macro with a name longer than two characters, and +the first two characters of the name make a name that is defined. +This is intended to find places where a space has been omitted been a +request or macro and its argument. This type of warning is enabled by +default. + +Pic +--- + +A comma is permitted between the arguments to the `reset' command. + +For use with TeX, there is a new `-c' option that makes gpic treat +lines beginning with `.' in a way that is more compatible with tpic +(but ugly). + +Eqn +--- + +It is no longer necessary to add `space 0' at the beginning of +complicated equations inside pictures. + +`prime' is now treated as an ordinary character, as in Unix eqn. The +previous behaviour of `prime' as an operator can now be obtained using +`opprime'. + +Xditview +-------- + +There are two new devices X75-12 and X100-12 which are the same as X75 +and X100 except that they are optimized for documents that use mostly +12 point text. + +VERSION 0.6 +=========== + +The installation process has been refined to make it easy for you to +share groff with someone who has the same type of machine as you but +does not have a C++ compiler. See the end of the INSTALL file for +details. + +There is a man page for the tfmtodit program which explains how to use +your own fonts with groff -Tdvi. + +There is a man page for afmtodit which explains how to use your own +PostScript fonts with groff -Tps. + +The \N escape sequence is now fully supported. It can now be used to +access any character in a font by its output code, even if it doesn't +have a groff name. This is made possible by a convention in the font +files that a character name of `---' refers to an unnamed character. +The drivers now all support the `N' command required for this. The font +description files have been updated to include unnamed characters. + +The `x' command in font description files has been removed: instead +any unknown commands are automatically made available to the drivers. +If you constructed your own font files with an earlier version of +tfmtodit or afmtodit, you must construct them again using the current +version. + +Characters between 0200 and 0237 octal are no longer legal input +characters. Note that these are not used in ISO 8859. + +A command called `grog' has been added, similar to the `doctype' +command described in Kernighan and Pike. + +Groff +----- + +The groff command has some new options: -V prints the pipeline +instead of executing it; -P passes an argument to the postprocessor, +-L passes an argument to the spooler. + +There is a C++ implementation of the groff command. This handles some +things slightly better than the shell script. In particular, it can +correctly handle arguments containing characters that have a special +meaning to the shell; it can give an error message when child +processes other than the last in the pipeline terminate abnormally; +its exit status can take account of the exit statuses of all its child +processes; it is a little more efficient; when geqn is used, it +searches for the eqnchar file in the same way that font metric files +are searched for, rather than expecting to find it in one particular +directory. + +Gtroff +------ + +There is font translation feature: For example, you can tell gtroff to +use font `HR' whenever font `H' is requested with the line + .ftr H HR +This would be useful for a document that uses `H' to refer to +Helvetica. + +There are some new number registers: `.kern' contains the current kern +mode, `.lg' the current ligature mode, `.x' the major version number, +`.y' the minor version number, `.ce' the number of lines to be +centered in the current environment, `.trunc' the amount of vertical +space truncated by the most recently sprung vertical position trap, +`.ne' the amount of vertical space needed in the last `ne' request +that caused a vertical position trap to be sprung. + +The `cf' request now behaves sensibly in a diversion. If used in a +diversion, it will now arrange for the file to be copied to the output +when the diversion is reread. + +There is a new request `trf' (transparent file) similar to `cf', but +more like `\!'. + +There is a new escape sequence `\Y[xxx]', roughly equivalent to +`\X'\*[xxx]'', except that the contents of string or macro xxx are not +interpreted, and xxx may contain newlines. This requires an output +format extension; the drivers have been modified to understand this. +Grops has also been modified to cope with newlines in the arguments to +\X commands; grops has a new \X command mdef, which is like def except +that it has a first argument giving the number of definitions. + +There is a new warning category `escape' which warns about unknown +escape sequences. + +The `fp' request now takes an optional third argument giving the external +name of the font. + +The `\_' character is now automatically translated to `\(ul' as in troff. + +The environment variable `GROFF_HYPHEN' gives the name of the file +containing the hyphenation patterns. + +There is a `\C'xxx'' escape sequence equivalent to `\[xxx]'. + +Characters ", ', ), ], *, \(dg are now initially transparent for the purposes +of end of sentence recognition. + +There is an anti-recursion feature in the `char' request, so you can +say `.char \(bu \s+2\(bu\s-2'. + +The limit on the number of font positions has been removed. +Accordingly `\n[.fp]' never returns 0. + +The restriction on the number of numbered environments has been removed. + +There is a new escape sequence `\E' that makes it possible to +guarantee that an escape sequence won't get interpreted in copy-mode. +The `\R' escape sequence is accordingly now deprecated. + +Gpic +---- + +Arguments of the form `X anything X' (in the `copy thru', `sh', `for', +`if' and `define' constructs) can now be of the form `{ anything }'. + +If the `linethick' variable is negative (as it now is initially), +lines will be drawn with a thickness proportional to the current point +size. + +The `rand' function now takes no arguments and returns a number between +0 and 1. The old syntax is still supported. + +`^' can be used in expressions to indicate exponentiation. + +In the `for' construct the argument to the by clause can be prefixed +by `*' to indicate that the increment is multiplicative. + +A bare expression may be used as an attribute. If the current +direction is `dir', then an attribute `expr' is equivalent to +`dir expr' + +There is a `sprintf' construct that allows numbers to be formatted and used +wherever a quoted string can be used. + +The height of a text object without an explicit height attribute is +the number of text strings associated with the object times the value +of the `textht' variable. + +The maximum height and width of a picture is controlled by the +`maxpswid' and `maxpsht' variables. + +Gtbl +---- + +Gtbl can now handle gracefully the situation where the `ce' request +has been applied to a table. + +Geqn +---- + +The `ifdef' primitive has been generalized. + +A tilde accent can be put underneath a box using `utilde'. This +defined using a general `uaccent' primitive. + +Grops +----- + +There is a new PostScript font downloading scheme which handles font +downloading for imported illustrations. Previously, the name of the +file containing the font was given in the `x download' line in the +groff font metric file. Now, there is a `download' file which says +for each PostScript font name which file contains that font. Grops +can also now handle inter-font dependencies, where one downloadable +font depends on some other (possibly downloadable) font. + +The `T' font has been removed. The characters it used to provide are +now provided by `char' definitions in tmac.ps. TSymbol.ps has also +been removed, and the tweaks it provided are now provided by `char' +definitions. |