> ah. I believe that's one of the functions added in xpath2, 
> but I just told Mike over on xml-dev that Xpath2 ought to be 
> sent to follow xslt 1.1 into oblivion:-)
> 

David's just worried about the obsolescence of his XPath 1.0 skills.
Life will be terribly boring when you don't have the chance to explain
to people how to simulate a conditional expression using an
infinite-length substring... ;-)

Michael Kay



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