Changes between Version 2 and Version 3 of TracSyntaxColoring


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Timestamp:
Nov 6, 2016, 9:26:01 AM (3 years 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 in [wiki:WikiFormatting wiki formatted] text and the [wiki:TracBrowser repository browser].
     1[[PageOutline(2-5,Contents,pullout)]]
     2
     3= Syntax Coloring of Source Code
     4
     5
     6Trac supports language-specific syntax highlighting of source code within wiki formatted text in [WikiProcessors#CodeHighlightingSupport wiki processors] blocks and in the [TracBrowser repository browser].
    37
    48To do this, Trac uses external libraries with support for a great number of programming languages.
     
    610Currently Trac supports syntax coloring using one or more of the following packages:
    711
    8  * [http://www.codento.com/people/mtr/genscript/ GNU Enscript]
    9  * [http://silvercity.sourceforge.net/ SilverCity]
    10  * [http://pygments.pocoo.org/ Pygments] (but needs a plugin for 0.10, see [#AboutPygments below])
     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.
    1115
    12 To activate syntax coloring, simply install either one (or more) of these packages. No additional configuration is required, however to modify the colors, have a look at `trac/htdocs/css/code.css`.
     16To 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.
    1317
    14 If you don't know why trac isnt detecting an installed library, try turning on Trac logging. It actually appears that Trac is broken with SilverCity 0.9.6. Either use the current 0.9.7 or the older 0.9.5 http://trac.edgewall.org/wiki/TracFaq#why-is-my-css-code-not-being-highlighted-even-though-i-have-silvercity-installed
     18== About Pygments
    1519
    16 When in use, Trac will automatically prioritize !SilverCity highlighting over Enscript if possible, (see note below).
     20Pygments is a highlighting library implemented in pure Python, very fast, easy to extend and [http://pygments.org/docs/ well documented].
    1721
    18 If neither package is available, Trac will display the data as plain text.
     22The 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].
    1923
    20 '''Note:''' Enscript supports a greater number of languages, however !SilverCity is generally faster since it is a library and isn't executed in an external process.
     24The list below contains only the most commonly used processors and the [http://pygments.org/docs/lexers/ list of supported Pygments lexers] is growing weekly.
    2125
    22 === About SilverCity ===
    23 !SilverCity uses the lexer from [http://www.scintilla.org/ Scintilla]. Scintilla supports more languages than !SilverCity implements. If you want to add a language to !SilverCity supported by Scintilla, it's not very difficult. See [http://trac.edgewall.org/wiki/SilverCityAddLanguage SilverCityAddLanguage] for some information how.
     26== Syntax Coloring Support
    2427
    25 === About Pygments ===
     28=== Known MIME Types
    2629
    27 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]. While it does not support as many languages as Enscript or Scintilla the overall output quality is much better.
     30[[KnownMimeTypes]]
    2831
    29 To use pygments trac 0.11 you just have to install pygments 0.5.1 or higher. If you want to use it in trac 0.10 too you have to install the [http://trac-hacks.org/wiki/TracPygmentsPlugin TracPygmentsPlugin] from trac hacks. If you encounter any bugs, please file tickets regarding Pygments in [http://dev.pocoo.org/projects/pygments/ the pygments trac].
     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.
    3033
    31 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.
     34Similarly, 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
     36HTML 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
     38If 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
     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             ||  ✓              ||                 ||  ✓  ||
    3295
    3396
    34 == Syntax Coloring Support ==
     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].
    35101
    36 || || !SilverCity || Enscript || Pygments ||
    37 || Ada      ||   || X || ||
    38 || Asm      ||   || X || ||
    39 || Apache Conf (htaccess)) || || || X ||
    40 || * ASP    || X || X || ||
    41 || * C      || X || X || X ||
    42 || * C#     ||   || X(2) || X ||
    43 || * C++    || X || X || X ||
    44 || * Java   || X(4)|| X || X ||
    45 || Awk      ||   || X || ||
    46 || Boo || || || X ||
    47 || CSS      || X ||   || X ||
    48 || Python Doctests || || || X ||
    49 || Diff     ||   || X || X ||
    50 || Eiffel   ||   || X || ||
    51 || Elisp    ||   || X || ||
    52 || Fortran  ||   || X(3) || ||
    53 || Haskell  ||   || X || X ||
    54 || Genshi || || || X ||
    55 || HTML     || X || X || X ||
    56 || IDL      ||   || X || ||
    57 || INI || || || X ||
    58 || Javascript || X || X || X ||
    59 || Lua || || || X ||
    60 || m4       ||   || X || ||
    61 || Makefile ||   || X || X ||
    62 || Mako || || || X ||
    63 || Matlab   ||   || X (5) || ||
    64 || Mygthy || || || X ||
    65 || Objective-C|| || X || ||
    66 || OCaml    ||   ||   || X ||
    67 || Pascal   ||   || X || X ||
    68 || * Perl   || X || X || X ||
    69 || * PHP    || X ||   || X ||
    70 || PSP      || X ||   || ||
    71 || Pyrex    ||   || X || ||
    72 || * Python || X || X || X ||
    73 || * Ruby   || X || X (1) || X ||
    74 || Scheme   ||   || X || X ||
    75 || Shell    ||   || X || X ||
    76 || Smarty || || || X ||
    77 || SQL      || X || X || X ||
    78 || Troff    ||   || X || X ||
    79 || TCL      ||   || X || ||
    80 || Tex      ||   || X || X ||
    81 || Verilog  || X(4) || X || ||
    82 || VHDL     ||   || X || ||
    83 || Visual Basic |||| X || X ||
    84 || VRML     ||   || X || ||
    85 || XML      || X ||  || X ||
     102''[=#a2 (2)] since Silvercity 0.9.7 released on 2006-11-23.
    86103
    87 ''(*) Supported as inline code blocks in [wiki:WikiFormatting Wiki text] using WikiProcessors.''
    88 
    89 ''(1) Ruby highlighting is not included in the Enscript distribution.  Highlighting rules for Ruby can be obtained from: http://neugierig.org/software/ruby/
    90 
    91 ''(2) C# highlighting is not included in the Enscript distribution.  Highlighting rules for C# can be obtained from: http://wiki.hasno.info/index.php/Csharp.st
    92 
    93 ''(3) Fortran: as packaged, Enscript only supports the fixed source form. Highlighting rules for Fortran 90x/2003 can be obtained from: http://wiki.hasno.info/index.php/F90.st
    94 
    95 ''(4) since Silvercity 0.9.7 released on 2006-11-23
    96 
    97 ''(5) By default `.m` files are considered Objective-C files. In order to treat `.m` files as MATLAB files, add "text/x-matlab:m" to the "mime_map" setting in the [wiki:TracIni#mimeviewer-section "[mimeviewer] section of trac.ini"].
    98 
    99 == Extra Software ==
    100  * GNU Enscript -- http://directory.fsf.org/GNU/enscript.html
    101  * GNU Enscript for Windows -- http://gnuwin32.sourceforge.net/packages/enscript.htm
    102  * !SilverCity -- http://silvercity.sf.net/
    103  * Pygments -- http://pygments.org/
     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"].
    104105
    105106----
    106107See also: WikiProcessors, WikiFormatting, TracWiki, TracBrowser
    107