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[Bug 10555] Pattern matching proposal for XQuery

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Date: Mon, 06 Sep 2010 13:50:16 +0000
To: public-qt-comments@w3.org
Message-Id: <E1Osc5Q-00089J-R8@jessica.w3.org>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=10555





--- Comment #2 from John Snelson <john.snelson@marklogic.com>  2010-09-06 13:50:15 ---
I sympathize with Mike's perspective, but there are other nice properties of
XSLT patterns that generic boolean predicates don't have. For instance, a
common optimization for XSLT implementations is to rule out patterns that don't
match a given node type early on, so that less patterns need to be matched.
This ability derives from the fact that patterns match nodes using a specific
declarative syntax.

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