Re: Future XSLT expansion.
> Having node-set typecast in the core allows writing > XSLT-vendor-independent extensions. I can't see any use for a node-set typecast within xslt, except for the one special case of result-tree to node set. Extension functions may return node-sets, if they return some other vendor-specific datatype, how would casting to node-set work? in general it is not at all clear what the conversion `should' be and if you wanted a node set why not use an extension function that returns a node set rather than one that returns some private datatype that needs to be coerced to a node set. Can you give an example of what you have in mind? David XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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