The BBCode parser is a Zend_Markup parser that converts BBCode to
a token tree. The syntax of all BBCode tags is:
[name(=(value|"value"))( attribute=(value|"value"))*]
Some examples of valid BBCode tags are:
[b] [list=1] [code file=Zend/Markup.php] [url="http://framework.zend.com/" title="Zend Framework!"]
By default, all tags are closed by using the format '[/tagname]'.