Changes between Version 3 and Version 4 of TracSyntaxColoring
- Timestamp:
- Jan 13, 2020, 11:20:11 PM (5 years ago)
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TracSyntaxColoring
v3 v4 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]. 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. 3 3 4 To do this, Trac uses external libraries with support for a great number of programming languages. 4 == About Pygments 5 5 6 Currently Trac supports syntax coloring using one or more of the following packages: 6 [http://pygments.org/ Pygments] is a highlighting library implemented in pure python, very fast, easy to extend and [http://pygments.org/docs/ well documented]. 7 7 8 * [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 9 * [http://www.codento.com/people/mtr/genscript/ GNU Enscript], commonly available on Unix but somewhat unsupported on Windows 10 * [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] 8 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]. 11 9 10 [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]. 12 11 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. 12 == Syntax Coloring Support 15 13 14 === Supported languages 16 15 17 === About Pygments === 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. 18 17 19 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].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. 20 19 21 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]. 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`. 22 21 23 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. 22 === Direct Rendering 24 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 25 26 == Syntax Coloring Support == 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 27 28 === Known MIME Types 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 29 31 30 32 [[KnownMimeTypes]] 31 33 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 mimetype 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-supported41 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 for99 [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 2006-11-23104 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://directory.fsf.org/GNU/enscript.html109 * GNU Enscript for Windows — http://gnuwin32.sourceforge.net/packages/enscript.htm110 * !SilverCity — http://silvercity.sf.net/111 * **Pygments — http://pygments.org/**112 113 34 ---- 114 35 See also: WikiProcessors, WikiFormatting, TracWiki, TracBrowser
