wiki:TracSyntaxColoring

Syntax Coloring of Source Code

Trac supports language-specific syntax highlighting of source code within wiki formatted text in wiki processors blocks and in the repository browser. Syntax coloring is provided using 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.

About Pygments

Pygments is a highlighting library implemented in pure python, very fast, easy to extend and well documented.

The Pygments default style can specified in the mime-viewer section of trac.ini. The default style can be overridden by setting a Style preference on the preferences page.

Pygments lexer options can be specified as WikiProcessor arguments and defaults can be set in the environment configuration.

Syntax Coloring Support

Supported languages

The list of currently supported languages can be found on the 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 supported lexers provides additional information about the default mime type to keyword mappings.

Explicit control of the mime type associated with a 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 [mimeviewer] mime_map option.

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.

Direct Rendering

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.

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.

HTML documents are directly rendered only if the render_unsafe_html settings are enabled in your TracIni file. See [attachment] render_unsafe_content, [browser] render_unsafe_content and [wiki] render_unsafe_content. The setting is present in multiple sections because there are different security concerns depending on where the document comes from.

Known MIME types

MIME TypesWikiProcessors
application/javascriptjs
application/msworddoc dot
application/pdfpdf
application/postscriptps
application/rss+xmlrss
application/rtfrtf
application/x-cshcsh
application/x-dos-batchbat batch cmd dos
application/x-genshigenshi
application/x-shsh
application/x-troffnroff roff troff
application/x-yamlyaml yml
application/xsl+xmlxsl
application/xslt+xmlxslt
image/svg+xmlsvg
image/x-iconico
model/vrmlvrml wrl
text/csscss
text/htmlhtm html
text/plainAUTHORS COPYING ChangeLog INSTALL README RELEASE TXT text txt
text/x-adaada adb ads
text/x-apacheconfapache apacheconf
text/x-asmasm
text/x-aspasp
text/x-awkawk
text/x-c++hdrH HH c++hdr hh hpp
text/x-c++srcC C++ CC c++ c++src cc cpp
text/x-chdrchdr h
text/x-csharpC# c# cs csharp
text/x-csrcc csrc xs
text/x-diffdiff patch
text/x-dylandylan
text/x-eiffele eiffel
text/x-elispel elisp
text/x-fortranf fortran
text/x-haskellhaskell hs
text/x-idlice idl
text/x-infinf
text/x-inicfg ini
text/x-javajava
text/x-kshksh
text/x-lualua
text/x-m4m4
text/x-mailmail
text/x-makefileGNUMakefile Makefile make makefile mk
text/x-nginx-confnginx nginx-conf
text/x-objcm mm objc
text/x-ocamlml mli ocaml
text/x-pascalpas pascal
text/x-perlPL perl pl pm
text/x-phpphp php3 php4
text/x-psppsp
text/x-pyrexpyrex pyx
text/x-pythonpy python
text/x-python-doctestpycon python-doctest
text/x-rfcrfc
text/x-rstrst
text/x-rubyrb ruby
text/x-schemescheme scm
text/x-sqlsql
text/x-tcltcl
text/x-textex
text/x-textiletextile txtl
text/x-vbabas vb vba
text/x-verilogv verilog
text/x-vhdlvhd vhdl
text/x-zshzsh
text/xmlxml


See also: WikiProcessors, WikiFormatting, TracWiki, TracBrowser

Last modified 3 months ago Last modified on 2017-08-28T06:33:43Z