= Syntax Coloring of Source Code = Trac supports language-specific syntax highlighting of source code within wiki formatted text in [WikiProcessors#CodeHighlightingSupport wiki processors] blocks and in the [TracBrowser repository browser]. To do this, Trac uses external libraries with support for a great number of programming languages. Currently Trac supports syntax coloring using one or more of the following packages: * [http://pygments.pocoo.org/ Pygments], by far the preferred system, as it covers a wide range of programming languages and other structured texts and is actively supported * [http://www.codento.com/people/mtr/genscript/ GNU Enscript], commonly available on Unix but somewhat unsupported on Windows * [http://silvercity.sourceforge.net/ SilverCity], legacy system, some versions can be [http://trac.edgewall.org/wiki/TracFaq#why-is-my-css-code-not-being-highlighted-even-though-i-have-silvercity-installed problematic] To activate syntax coloring, simply install either one (or more) of these packages (see [#ExtraSoftware] section below). If none of these packages is available, Trac will display the data as plain text. === About Pygments === Starting with trac 0.11 [http://pygments.org/ pygments] will be the new default highlighter. It's a highlighting library implemented in pure python, very fast, easy to extend and [http://pygments.org/docs/ well documented]. The Pygments default style can specified in the [TracIni#mimeviewer-section mime-viewer] section of trac.ini. The default style can be overridden by setting a Style preference on the [/prefs/pygments preferences page]. It's very likely that the list below is outdated because the list of supported pygments lexers is growing weekly. Just have a look at the page of [http://pygments.org/docs/lexers/ supported lexers] on the pygments webpage. == Syntax Coloring Support == === Known MIME Types [[KnownMimeTypes]] === List of Languages Supported, by Highlighter #language-supported This list is only indicative. || ||= !SilverCity =||= Enscript =||= Pygments =|| || Ada || || ? || || || Asm || || ? || || || Apache Conf || || || ? || || ASP || ? || ? || || || C || ? || ? || ? || || C# || || ? ^[#a1 (1)]^ || ? || || C++ || ? || ? || ? || || Java || ? ^[#a2 (2)]^ || ? || ? || || Awk || || ? || || || Boo || || || ? || || CSS || ? || || ? || || Python Doctests || || || ? || || Diff || || ? || ? || || Eiffel || || ? || || || Elisp || || ? || || || Fortran || || ? ^[#a1 (1)]^ || ? || || Haskell || || ? || ? || || Genshi || || || ? || || HTML || ? || ? || ? || || IDL || || ? || || || INI || || || ? || || Javascript || ? || ? || ? || || Lua || || || ? || || m4 || || ? || || || Makefile || || ? || ? || || Mako || || || ? || || Matlab ^[#a3 (3)]^ || || ? || ? || || Mygthy || || || ? || || Objective-C || || ? || ? || || OCaml || || || ? || || Pascal || || ? || ? || || Perl || ? || ? || ? || || PHP || ? || || ? || || PSP || ? || || || || Pyrex || || ? || || || Python || ? || ? || ? || || Ruby || ? || ? ^[#a1 (1)]^ || ? || || Scheme || || ? || ? || || Shell || || ? || ? || || Smarty || || || ? || || SQL || ? || ? || ? || || Troff || || ? || ? || || TCL || || ? || || || Tex || || ? || ? || || Verilog || ? ^[#a2 (2)]^ || ? || || || VHDL || || ? || || || Visual Basic || || ? || ? || || VRML || || ? || || || XML || ? || || ? || ''[=#a1 (1)] Not included in the Enscript distribution. Additional highlighting rules can be obtained for [http://neugierig.org/software/ruby/ Ruby], [http://wiki.hasno.info/index.php/Csharp.st C#], [http://wiki.hasno.info/index.php/F90.st Fortran 90x/2003] ''[=#a2 (2)] since Silvercity 0.9.7 released on 2006-11-23 ''[=#a3 (3)] By default `.m` files are considered Objective-C files. In order to treat `.m` files as MATLAB files, add "text/matlab:m" to the "mime_map" setting in the [wiki:TracIni#mimeviewer-section "[mimeviewer] section of trac.ini"]. == Extra Software == * GNU Enscript -- http://directory.fsf.org/GNU/enscript.html * GNU Enscript for Windows -- http://gnuwin32.sourceforge.net/packages/enscript.htm * !SilverCity -- http://silvercity.sf.net/ * Pygments -- http://pygments.org/ ---- See also: WikiProcessors, WikiFormatting, TracWiki, TracBrowser