Changes between Version 2 and Version 3 of TracSyntaxColoring


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Timestamp:
May 2, 2019, 9:45:05 AM (15 months ago)
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trac
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  • TracSyntaxColoring

    v2 v3  
    1 = Syntax Coloring of Source Code
    2 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]. Syntax coloring is provided using [http://pygments.org/ Pygments], which covers a wide range of programming languages and other structured texts, and is actively supported. If Pygments is not available, Trac will display the content as plain text.
     1= Syntax Coloring of Source Code =
     2Trac supports language-specific syntax highlighting of source code within wiki formatted text in [WikiProcessors#CodeHighlightingSupport wiki processors] blocks and in the [TracBrowser repository browser].
     3
     4To do this, Trac uses external libraries with support for a great number of programming languages.
     5
     6Currently Trac supports syntax coloring using one or more of the following packages:
     7
     8 * [http://pygments.org/ Pygments], by far the preferred system, as it covers a wide range of programming languages and other structured texts and is actively supported
     9 * [http://www.codento.com/people/mtr/genscript/ GNU Enscript], commonly available on Unix but somewhat unsupported on Windows //(use is deprecated)//
     10 * [http://silvercity.sourceforge.net/ SilverCity], legacy system, some versions can be problematic //(use is deprecated)//
    311
    412
    5 === About Pygments
     13To activate syntax coloring, simply install either one (or more) of these packages (see [#ExtraSoftware] section below).
     14If none of these packages is available, Trac will display the data as plain text.
     15
     16
     17=== About Pygments ===
    618
    719[http://pygments.org/ Pygments] is a highlighting library implemented in pure python, very fast, easy to extend and [http://pygments.org/docs/ well documented].
    820
    9 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].
     21The 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].
    1022
    11 [http://pygments.org/docs/lexers/ Pygments lexer] options can be specified as [WikiProcessors WikiProcessor] arguments and defaults can be set in the [TracIni#pygments-lexer-section environment configuration].
     23It'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.
    1224
    13 == Syntax Coloring Support
    1425
    15 === Supported languages
     26== Syntax Coloring Support ==
    1627
    17 The list of currently supported languages can be found on the [http://pygments.org/languages/ supported languages] page. The list represents the languages supported in the most recent version of Pygments, so the languages actually supported in your installation could differ if you have an older version installed. The listing of [http://pygments.org/docs/lexers/ supported lexers] provides additional information about the default mime type to keyword mappings.
     28=== Known MIME Types
    1829
    19 Explicit control of the mime type associated with a [WikiProcessors WikiProcessor] and file extension is available through the `mime_map` setting. For example, 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"].
     30[[KnownMimeTypes]]
    2031
    21 If a mimetype property such as `svn:mime-type` is set to `text/plain`, there is no coloring even if file is known type like `java`.
    22 
    23 === Direct Rendering
    24 
    25 Rich content may be directly //rendered// instead of syntax highlighted. This usually depends on which auxiliary packages are installed and on which components are activated in your setup. For example a `text/x-rst` document will be rendered via `docutils` if it is installed and the `trac.mimeview.rst.ReStructuredTextRenderer` is not disabled, and will be syntax highlighted otherwise.
     32Note that the rich content may be directly //rendered// instead of syntax highlighted. This usually depends on which auxiliary packages are installed and on which components are activated in your setup. For example a `text/x-rst` document will be rendered via `docutils` if it is installed and the `trac.mimeview.rst.ReStructuredTextRenderer` is not disabled, and will be syntax highlighted otherwise.
    2633
    2734In a similar way, a document with the mimetype `text/x-trac-wiki` is rendered using the Trac wiki formatter, unless the `trac.mimeview.api.WikiTextRenderer` component is disabled.
     
    2936HTML documents are directly rendered only if the `render_unsafe_html` settings are enabled in the TracIni (those settings are present in multiple sections, as there are different security concerns depending where the document comes from). If you want to ensure that an HTML document gets syntax highlighted and not rendered, use the `text/xml` mimetype.
    3037
    31 === Known MIME types
     38If a mimetype property such as 'svn:mime-type' is set to 'text/plain', there is no coloring even if file is known type like 'java'.
    3239
    33 [[KnownMimeTypes]]
     40=== List of Languages Supported, by Highlighter #language-supported
     41
     42This list is only indicative.
     43
     44||                 ||= !SilverCity   =||= Enscript      =||= Pygments =||
     45|| Ada             ||                 ||  ✓              ||     ||
     46|| Asm             ||                 ||  ✓              ||     ||
     47|| Apache Conf     ||                 ||                 ||  ✓  ||
     48|| ASP             ||  ✓              ||  ✓              ||     ||
     49|| C               ||  ✓              ||  ✓              ||  ✓  ||
     50|| C#              ||                 ||  ✓ ^[#a1 (1)]^  ||  ✓  ||
     51|| C++             ||  ✓              ||  ✓              ||  ✓  ||
     52|| CMake           ||  ?              ||  ?              ||  ✓  ||
     53|| Java            ||  ✓ ^[#a2 (2)]^  ||  ✓              ||  ✓  ||
     54|| Awk             ||                 ||  ✓              ||     ||
     55|| Boo             ||                 ||                 ||  ✓  ||
     56|| CSS             ||  ✓              ||                 ||  ✓  ||
     57|| Python Doctests ||                 ||                 ||  ✓  ||
     58|| Diff            ||                 ||  ✓              ||  ✓  ||
     59|| Eiffel          ||                 ||  ✓              ||     ||
     60|| Elisp           ||                 ||  ✓              ||     ||
     61|| Fortran         ||                 ||  ✓ ^[#a1 (1)]^  ||  ✓  ||
     62|| Haskell         ||                 ||  ✓              ||  ✓  ||
     63|| Genshi          ||                 ||                 ||  ✓  ||
     64|| HTML            ||  ✓              ||  ✓              ||  ✓  ||
     65|| IDL             ||                 ||  ✓              ||     ||
     66|| INI             ||                 ||                 ||  ✓  ||
     67|| Javascript      ||  ✓              ||  ✓              ||  ✓  ||
     68|| Lua             ||                 ||                 ||  ✓  ||
     69|| m4              ||                 ||  ✓              ||     ||
     70|| Makefile        ||                 ||  ✓              ||  ✓  ||
     71|| Mako            ||                 ||                 ||  ✓  ||
     72|| Matlab ^[#a3 (3)]^  ||             ||  ✓              ||  ✓  ||
     73|| Mygthy          ||                 ||                 ||  ✓  ||
     74|| Objective-C     ||                 ||  ✓              ||  ✓  ||
     75|| OCaml           ||                 ||                 ||  ✓  ||
     76|| Pascal          ||                 ||  ✓              ||  ✓  ||
     77|| Perl            ||  ✓              ||  ✓              ||  ✓  ||
     78|| PHP             ||  ✓              ||                 ||  ✓  ||
     79|| PSP             ||  ✓              ||                 ||     ||
     80|| Pyrex           ||                 ||  ✓              ||     ||
     81|| Python          ||  ✓              ||  ✓              ||  ✓  ||
     82|| Ruby            ||  ✓              ||  ✓ ^[#a1 (1)]^  ||  ✓  ||
     83|| Scheme          ||                 ||  ✓              ||  ✓  ||
     84|| Shell           ||                 ||  ✓              ||  ✓  ||
     85|| Smarty          ||                 ||                 ||  ✓  ||
     86|| SQL             ||  ✓              ||  ✓              ||  ✓  ||
     87|| Troff           ||                 ||  ✓              ||  ✓  ||
     88|| TCL             ||                 ||  ✓              ||     ||
     89|| Tex             ||                 ||  ✓              ||  ✓  ||
     90|| Verilog         ||  ✓ ^[#a2 (2)]^  ||  ✓              ||     ||
     91|| VHDL            ||                 ||  ✓              ||     ||
     92|| Visual Basic    ||                 ||  ✓              ||  ✓  ||
     93|| VRML            ||                 ||  ✓              ||     ||
     94|| XML             ||  ✓              ||                 ||  ✓  ||
     95
     96
     97
     98''[=#a1 (1)] Not included in the Enscript distribution.  Additional highlighting rules can be obtained for
     99[http://neugierig.org/software/ruby/ Ruby],
     100[http://wiki.hasno.info/index.php/Csharp.st C#],
     101[http://wiki.hasno.info/index.php/F90.st Fortran 90x/2003]
     102
     103''[=#a2 (2)] since Silvercity 0.9.7 released on 2006-11-23
     104
     105''[=#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"].
     106
     107== Extra Software ==
     108 * GNU Enscript — http://www.gnu.org/software/enscript/
     109 * GNU Enscript for Windows — http://gnuwin32.sourceforge.net/packages/enscript.htm
     110 * !SilverCity — http://silvercity.sf.net/
     111 * **Pygments — http://pygments.org/**
    34112
    35113----