- From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
- Date: 09 Mar 2001 15:13:29 +0000
- To: "Weber, Heiko" <Heiko.Weber@softwareag.com>
- Cc: "'xmlschema-dev@w3.org'" <xmlschema-dev@w3.org>
"Weber, Heiko" <Heiko.Weber@softwareag.com> writes:
> Are there any constraints in the Schema defnition that prohibit using
> constructs like the following?
>
> <complexType>
> <choice>
> <sequence>
> <element ref="A">
> </sequence>
> <choice>
> <element ref="A">
> <element ref="B">
> </choice>
> </choice>
> </complexType>
>
> If I got the element "A" I wouldn't be able to decide if this element
> would match the sequence or the choice.
Ruled out by the Unique Particle Attribution constraint [1].
ht
[1] http://www.w3.org/TR/xmlschema-1/#cos-nonambig
--
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, 9 March 2001 10:13:32 UTC