[Zope] adding an stx tage ?

Hello, Does anyone thinks it could be usefull to add something like <dtml-stx> tag? This tag would tell zope that all the enclosed text is strucured text. A bit fancier : <dtml-stx render="html"> , <dtml-stx render="docbook"> ,... Would this be hard to implement? Philippe Jadin www.123piano.com