Now I wonder whether something like this is feasible using xquery 3.0
features. Maybe not worth the effort, given the existence of xslt,
but at least you could imagine defining a map of XPath to function,
iterating over a tree, matching patterns and calling functions...
I think that with maps* and higher-order functions you could do
something quite powerful; however the resulting code might be very
cryptic to the uninitiated.
* Sadly, maps are not in XQuery 3.0, though John Snelson has shown how
they can be implemented using higher-order functions...
Michael Kay
Saxonica
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