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Re: Value space of QName

From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
Date: 17 Oct 2000 10:14:41 +0100
To: James Clark <jjc@jclark.com>
Cc: XML Schema Comments <www-xml-schema-comments@w3.org>
Message-ID: <f5bvgurj0ce.fsf@cogsci.ed.ac.uk>
James Clark <jjc@jclark.com> writes:

> Part 2 describes the value space of QName as "The value space of QName
> is the set of tuples {namespace name, local part}, where namespace name
> is a uriReference and local part is an NCName".  This is not quite
> right: a QName need not have a prefix; in such a case, the namespace
> name part may be missing.

We should indeed clarify---in most places we talk about QNames, we
make clear that an 'absent' value for namespace URI signals the
unqualified case.

  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
          W3C Fellow 1999--2001, part-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
		     URL: http://www.ltg.ed.ac.uk/~ht/
Received on Tuesday, 17 October 2000 05:14:44 UTC

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