- From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
- Date: 07 Oct 2002 18:11:39 +0100
- To: Anli Shundi <ashundi@tibco.com>
- Cc: "'Stefan Wachter'" <Stefan.Wachter@gmx.de>, Ted Toth <ted.toth@vincera.com>, xmlschema-dev@w3.org
Anli Shundi <ashundi@tibco.com> writes:
> It is not alright:
>
> > > <xsd:complexType name="ID">
> > > <xsd:simpleContent>
> > > <xsd:restriction base="element">
> > > <xsd:pattern value="[A-Z\d]*"/>
> > > </xsd:restriction>
> > > </xsd:simpleContent>
> > > </xsd:complexType>
>
> the complexType "ID" should have instead been a simpleType.
>
> http://www.w3.org/TR/xmlschema-1/#src-ct point 2 is fulfilled but
> point 2 of http://www.w3.org/TR/xmlschema-1/#ct-props-correct is not:
>
> 2 If the {base type definition} is a simple type definition, the {derivation
> method} must be extension.
But the base is _not_ a simple type definition, it's a complex type
definition with simple content, and it's perfectly OK to restrict
that.
ht
--
Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
W3C Fellow 1999--2002, 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/
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Received on Monday, 7 October 2002 13:11:44 UTC