XPath extension functions in XForms

Do any of the existing XForms engines add their own vendor-sepcific 
extension functions to XPath? That is, functions that are not standard 
parts of XForms 1.0? if so, can anyone provide or point me to more 
details about these functions?

Also, must such functions be namespaced and prefixed like XSLT extension 
functions? Or can they be simple local names like sin(). cos(), and tan()?

Finally, do any vendors provide a means for users to write their own 
extension functions? If so, can anyone provide or point me to more 
details about the relevant APIs?

Thanks.

-- 
Elliotte Rusty Harold  elharo@metalab.unc.edu
Java I/O 2nd Edition Just Published!
http://www.cafeaulait.org/books/javaio2/
http://www.amazon.com/exec/obidos/ISBN=0596527500/ref=nosim/cafeaulaitA/

Received on Monday, 9 July 2007 10:36:51 UTC