Code syntax highlighting

You can color or highlight code snippets within Moodle resources, forum posts etc. To do so you must install the GeSHi (Generic Syntax Highlighter) Filter. This makes the power of GeSHi available in Moodle through the use of a pair of special tags.

Installing

You can download the GeSHi filter from here:

https://moodle.org/plugins/view.php?plugin=filter_geshi

To install, unzip that archive into your filter/ directory and then enable it in the admin filter configuration screen.

Instructions for use

Enclose your code in spans under the source of html editor like so:

<span syntax="code">your code goes here</span>

<span syntax="code" linenumbers="yes">your code with line numbers</span>

Supported languages

• asm,
• bash,
• cpp,
• CSS
• lisp
• matlab
• HTML in Moodle
• PHP
• pascal
• sql
• xml

and many others. See the GeSHi homepage for full details.

Options

See the examples above. This filter is still under development so things may change.

Demo

The GeSHi homepage also has an interactive demo.

http://qbnz.com/highlighter/demo.php

Development

The last development for this filter appears to have been in 2017. Bug reports are welcome, please post them in the github issues system.

See also

• GeSHi homepage
• MoodleDocs:Style_guide#PHP_syntax_highlighting that does not need any additional filter