- From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
- Date: 21 Sep 2001 10:03:52 +0100
- To: "Penick, Thomas" <tpenick@vignette.com>
- Cc: "'www-xml-schema-comments@w3.org'" <www-xml-schema-comments@w3.org>, "Miller, Scott" <smiller@vignette.com>
This is a bit tricky, but the bottom line is straightforward -- your
documents are fine, the parser has a problem.
Full story: ' 3.5' is not in the lexical space of the 'double'
builtin primitive datatype. _However_ both
<foo> 3.5</foo>
and
<baz f=' 3.5'/>
_are_ XML Schema-valid if <foo> and 'f' are declared as xs:double.
Why? Because all non-string datatypes by definition have the
'collapse' value for their 'whitespace' facet, which means that
parsers must _inter alia_ strip leading and trailing whitespace from
the input to _construct_ the candidate lexical space string.
So in both those cases, the string to be considered is '3.5', which is
fine.
Hope this helps
ht
--
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 Friday, 21 September 2001 05:03:16 UTC