[Zope] How to create a new TAL statement?

[Tino Wildenhain]

Garito schrieb:
> Hi all!
> 
> As Aj and Chris advise my to forget the __getattr__ bussiness I try to 
> solve the same question by other ways
> 
> Now I have a new question:
> 
> Can you point me to some help about how to create a new TAL statement?
> 
> I would like to create a tal:yanged (for example) statement to control 

<tal:yanged replace="/foo/bar" />

would work :-) But what are you really trying to do and why?

Regards
Tino