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[Bug 28024] Does "[Unicode] characters" EQUAL "Char production in [XML]?

From: <bugzilla@jessica.w3.org>
Date: Sun, 15 Feb 2015 09:11:25 +0000
To: public-qt-comments@w3.org
Message-ID: <bug-28024-523-KWvfHUWTUu@http.www.w3.org/Bugs/Public/>

Michael Kay <mike@saxonica.com> changed:

           What    |Removed                     |Added
                 CC|                            |mike@saxonica.com

--- Comment #4 from Michael Kay <mike@saxonica.com> ---
Actually, an XPath expression is a string of unicode characters that conforms
to the XPath grammar, and it so happens that the set of characters allowed by
the grammar is the same as the set of characters allowed by the xs:string data
type, which is the same as the set of characters that can appear in XML
documents. But the relationship is extensional rather than intensional. I don't
think it would be helpful to anyone to describe an XPath expression as a value
in the value space of xs:string. The word "string" here is used in its everyday
sense, and this can be inferred from the absence of a link to any definition of
"string" as a term of art.

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