| 4 | | To do this, Trac uses external libraries with support for a great number of programming languages. |
| 5 | | |
| 6 | | Currently 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)// |
| 11 | | |
| 12 | | |
| 13 | | To activate syntax coloring, simply install either one (or more) of these packages (see [#ExtraSoftware] section below). |
| 14 | | If none of these packages is available, Trac will display the data as plain text. |
| 15 | | |
| 16 | | |
| 17 | | === About Pygments === |
| | 4 | == About Pygments |
| 28 | | === Known MIME Types |
| | 16 | 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. |
| | 17 | |
| | 18 | 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 [wiki:TracIni#mimeviewer-mime_map-option "[mimeviewer] mime_map"] option. |
| | 19 | |
| | 20 | 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`. |
| | 21 | |
| | 22 | === Direct Rendering |
| | 23 | |
| | 24 | Rich content may be directly //rendered// instead of syntax highlighted. This usually depends on which auxiliary packages are installed and 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. It will be syntax highlighted otherwise. |
| | 25 | |
| | 26 | 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. If you want to ensure that an HTML document gets syntax highlighted and not rendered, use the `text/xml` mimetype. |
| | 27 | |
| | 28 | HTML documents are directly rendered only if the `render_unsafe_html` settings are enabled in your TracIni file. See [TracIni#attachment-render_unsafe_content-option "[attachment] render_unsafe_content"], [TracIni#browser-render_unsafe_content-option "[browser] render_unsafe_content"] and [TracIni#wiki-render_unsafe_content-option "[wiki] render_unsafe_content"]. The setting is present in multiple sections because there are different security concerns depending on where the document comes from. |
| | 29 | |
| | 30 | === Known MIME types |
| 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 | | In 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. |
| 35 | | |
| 36 | | HTML 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. |
| 37 | | |
| 38 | | 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'. |
| 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 | | |
| 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/** |
| 112 | | |
