Creating Moodle Filters- Best Practices | Education 2.0 & 3.0 | Scoop.it
Moodle filters make it possible to automatically transform your content before output or display. For example, filters make it possible for links to media files to be converted automatically into applets for playing the media, they can render embedded equations into images, can convent glossary terms automatically into links and many other things. There is no limit to the number of things that can be achieved using filters.

Via Miloš Bajčetić, Juergen Wagner