Every TagHandler for use with Temply should implement this interface. It provides all methods required by Temply.
See http://www.oliver-matuschin.de for more information and version udpates.
boolean isTag( string $tagName)
string preprocessAttribute( string $attrName, string $attrValue, boolean $quoted)
It can be used to change the value of any attribute, if needed.
string processBlockTag( string $tagName, $attributes, string $blockContent)
string processSingleTag( string $tagName, $attributes)