#2 Oct 10, 2013 11:54
All the code of the supported buttons and their html replacement are in the method
get_coll_setting_definitions of the
blogs/plugins/_bbcode.plugin.php. You only need some skills in php and regular expressions in order to implement new codes on your own.
A good starting point for on your research about BBCode could be this page: http://en.wikipedia.org/wiki/BBCode