Changes between Version 5 and Version 6 of TracSyntaxColoring


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Dec 27, 2016, 1:09:11 AM (21 months ago)
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trac
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  • TracSyntaxColoring

    v5 v6  
    1 [[PageOutline(2-5,Contents,pullout)]]
    2 
    31= 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]. 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.
    43
    54
    6 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].
     5=== About Pygments
    76
    8 To do this, Trac uses external libraries with support for a great number of programming languages.
     7[http://pygments.org/ Pygments] is a highlighting library implemented in pure python, very fast, easy to extend and [http://pygments.org/docs/ well documented].
    98
    10 Currently Trac supports syntax coloring using one or more of the following packages:
     9The 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].
    1110
    12  * '''[http://pygments.org/ Pygments]''', the preferred system, as it covers a wide range of programming languages and other structured texts and is actively supported.
    13  * [http://www.codento.com/people/mtr/genscript/ GNU Enscript], commonly available on Unix, and has an [http://gnuwin32.sourceforge.net/packages/enscript.htm unsupported version] on Windows; use is deprecated.
    14  * [http://silvercity.sourceforge.net/ SilverCity], legacy system, some versions can be problematic; use is deprecated.
    15 
    16 To activate syntax coloring, simply install either one (or more) of these packages. If none of these packages is available, Trac will display the data as plain text.
    17 
    18 == About Pygments
    19 
    20 Pygments is a highlighting library implemented in pure Python, very fast, easy to extend and [http://pygments.org/docs/ well documented].
    21 
    22 The Pygments default style can specified in the [TracIni#mimeviewer-section mime-viewer] section of your TracIni file. The default style can be overridden by setting a Style preference on the [/prefs/pygments preferences page].
    23 
    24 The list below contains only the most commonly used processors and the [http://pygments.org/docs/lexers/ list of supported Pygments lexers] is growing weekly.
     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].
    2512
    2613== Syntax Coloring Support
    2714
    28 === Known MIME Types
     15=== Supported languages
     16
     17The 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.
     18
     19Explicit 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"].
     20
     21If 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
     25Rich 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.
     26
     27In 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.
     28
     29HTML 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.
     30
     31=== Known MIME types
    2932
    3033[[KnownMimeTypes]]
    3134
    32 Note 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.
    33 
    34 Similarly, 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.
    35 
    36 HTML documents are directly rendered only if the `render_unsafe_html` settings are enabled in your TracIni file. 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.
    37 
    38 If a mimetype property such as `svn:mime-type` is set to `text/plain`, there is no coloring even if the file is of a known type, like `java`.
    39 
    40 === List of Languages Supported, by Highlighter #language-supported
    41 
    42 This 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 ''[=#a1 (1)] Not included in the Enscript distribution.  Additional highlighting rules can be obtained for
    98 [http://neugierig.org/software/ruby/ Ruby],
    99 [http://wiki.hasno.info/index.php/Csharp.st C#],
    100 [http://wiki.hasno.info/index.php/F90.st Fortran 90x/2003].
    101 
    102 ''[=#a2 (2)] since Silvercity 0.9.7 released on 2006-11-23.
    103 
    104 ''[=#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"].
    105 
    10635----
    10736See also: WikiProcessors, WikiFormatting, TracWiki, TracBrowser