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[Bug 6027] [XPath] Extensions and Conformance

From: <bugzilla@wiggum.w3.org>
Date: Tue, 06 Jan 2009 15:59:16 +0000
To: public-qt-comments@w3.org
Message-Id: <E1LKEKq-0005Rp-46@farnsworth.w3.org>

http://www.w3.org/Bugs/Public/show_bug.cgi?id=6027





--- Comment #3 from Jonathan Robie <jonathan.robie@redhat.com>  2009-01-06 15:59:15 ---
I propose that we add this section to Conformance:

<add>
5.2 BNF Extensions

The XQuery language is defined in this specification. Any extensions to the
BNF are not part of the XQuery language. Users can easily determine whether a
query uses grammar not found in our
EBNF by using the XQuery applets [APPLETS]. 

As a Working Group, we control the XQuery BNF. If a vendor extends the BNF
in their product, that has no bearing on extensions we make in the future, even
if they are incompatible with existing vendor extensions.
</add>

In addition, we should consider whether to soften this error text:

<quote>
err:XPST0003
It is a static error if an expression is not a valid instance of the grammar
defined in A.1 EBNF.
</quote>


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Received on Tuesday, 6 January 2009 15:59:24 UTC

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