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RE: [xsl] Proposed syntax for namespace binding in XPath

From: "Michael Kay" <mike@------------>
To:
Date: 4/2/2007 9:54:00 AM

> > Is it possible to just match on prefix, regardless of binding?  eg,
> > 
> > "foo:bar"
> > 
> > ...will match any bar node prefixed with foo - the calling 
> app doesn't 
> > care what "foo" is bound to in the XML, as long that's the prefix.
> > 
> > If that's possible, that would be a really useful option.
> 
> Useful maybe, but that one would definitely be a 
> non-conformance with the spec....

What you can already do of course in some APIs (including
saxon:evaluate-node()) is to take the namespace bindings for the XPath
expression from the in-scope namespaces of a given element node. That has
almost the same effect as matching on prefix, except when the source
document maps multiple prefixes to the same namespace (or the same prefix to
multiple namespaces). It's also open to abuse, but it works well in a
situation where the XPath expression is actually held within the document to
be searched.

Michael Kay
http://www.saxonica.com/

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