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- To: xml-dev@lists.xml.org
- Subject: Collection-Valued Subexpressions?
- From: Alan Gutierrez <alan-xml-dev@engrm.com>
- Date: Sun, 28 Aug 2005 13:02:59 -0400
- Mail-followup-to: xml-dev@lists.xml.org
- User-agent: Mutt/1.4.1i
I'm reading through the XPath 2.0 Requirements.
"In XPath 1.0, the use of a collection-valued subexpression can
introduce an implicit existential quantification or
choose-first-member operation into the containing
expression's semantics."
The problem with XPath 1.0 appears to be that:
/a[b = 5]
Returns all matches while..
/a[b + 1 = 6]
.. returns only the first match.
The fix in XPath 2.0 appears to be to return an error for the
latter if there is more than one match.
Why is it not possible to return all /a[b + 1 = 6] ?
--
Alan Gutierrez - alan@engrm.com
- http://engrm.com/blogometer/index.html
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