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[Bug 6927] XQuery 1.1 is not an LL(k) language because of the optional "outer" keyword

From: <bugzilla@wiggum.w3.org>
Date: Wed, 20 May 2009 19:45:26 +0000
To: public-qt-comments@w3.org
Message-Id: <E1M6rjC-0001ZH-MI@wiggum.w3.org>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=6927


Michael Kay <mike@saxonica.com> changed:

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--- Comment #1 from Michael Kay <mike@saxonica.com>  2009-05-20 19:45:26 ---
Good catch, I think you are right.

Perhaps we could use "outerfor" as a single word.

Though I really wonder how many people understand this "outer" terminology
anyway? Not all our users have done a computer science SQL course, and even
those who have might not immediately see the relevance. It seems very obscurely
related to the actual semantics. Might something like

for $x emptiable? in EXPR

be better?


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