The GeShi Filter module provides a filter for source code syntax highlighting for a wide range of languages.

Source code can be entered with for example <code type="java">...</code> or <blockcode language="python">...</blockcode>. Starting from version 5.x-2.0 it is also possible to define your own generic and language specific tags (e.g. <java>) or to work with square bracket style tags (e.g. [python]). Automatically adding line numbers is possible too with for example [ruby linenumbers="normal"].

Language Support

At the time of this writing the GeSHi library supports highlighting for more than 200 programming languages and configuration syntaxes, including: ActionScript, Ada, Apache Log, AppleScript, ASM, ASP, Bash, C, ColdFusion, C++, QT, C#, CSS, D, Delphi, Diff, DOS, dot, Eiffel, Fortran, Groovy, Haskell, HTML, INI, Inno, Java, Javascript, LaTeX, Lisp, Lua, Motorola 68000 Assembler, Matlab, mIRC Scripting, MySQL, Objective C, OCaml, OpenOffice.org Basic, Oracle 8 SQL, Pascal, Perl, PHP, PL/SQL, Python, QBasic/QuickBASIC, Rails, Microsoft Registry, robots.txt, Ruby, SAS, Scheme, Smalltalk, Smarty, SQL, TCL, Text, Visual Basic, vb.net, VHDL, XML, X++.

Additional support for highlighting Drupal source code is provided too.

Third party library dependency: GeSHi (version 1.0.x)

This module requires the third-party PHP library GeSHi (Generic Syntax Highlighter), which has to be downloaded separately.
Important note: only the 1.0.x branch of the GeSHi library is supported, so do not use the development branch GeSHi 1.1.x. Direct link to GeSHi 1.0.x releases: http://sourceforge.net/projects/geshi/files/geshi/

7.x-1.x

The 7.x branch requires the Libraries API (2.x-dev). A drush make file is also included that will download both the libraries API and the geshi dependency.

History

The 4.7.x-1.x branch is based on the original GeSHi filter module by Vincent Filby. The 5.x-1.x branch is a basic port of this version for Drupal 5.

In the 5.x-2.x branch the GeSHi filter got a major overhaul. Main features/changes: configurable code block tags, per language tags (e.g. <java>), a submodule for a GeSHi source code node type, easier administration UI, guided filter conflict solving, and many bug fixes.

Related modules/alternatives

• Code filter: a simple module with support for PHP syntax highlighting
• Syntax Highlighter uses a Javascript library to add syntax highlighting client side (unlike GeSHi filter, which renders the highlighted code server side).
• Chili highlighter also uses a Javascript library to do the syntax highlighting client side.
• Ajax Markup
• Compile GeSHi: compile source code snippets
• Windows Live Writer Plug-in: GeSHi Server Blocks (more info)
• Allow use of GeSHi Filter with Wysiwyg module for Drupal 7 and CKEditor (experimental module).