- From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
- Date: Mon, 15 Sep 2003 16:46:22 +0100
- To: Lefèvre@inf.ed.ac.uk, Marc <Marc.Lefevre@softwareag.com>
- Cc: "'xmlschema-dev@w3.org'" <xmlschema-dev@w3.org>, "'xml-dev@lists.xml.org'" <xml-dev@lists.xml.org>
Your schema includes a content model similar to the following in
DTD-notation:
( IDAH+ | CWG | ( IDAH+ , CWG) )
This is not allowed, by XML 1.0 in a DTD, and by W3C XML Schema in a
schema, because given an IDAH element in an instance, a processor
cannot immediately determine whether the first or the third branch of
the above choice is to be followed.
If you rewrite the above as
( CWG | ( IDAH+ , CWG?) )
or
<xs:choice>
<xs:element ref="CommentWorkGrid"/>
<xs:sequence>
<xs:element ref="IndicationDaysAndHours" minOccurs="28" maxOccurs="28"/>
<xs:element ref="CommentWorkGrid" minOccurs="0">
<xs:annotation>
<xs:documentation>90037</xs:documentation>
</xs:annotation>
</xs:element>
</xs:sequence>
</xs:choice>
it will be OK.
ht
--
Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
Half-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/
[mail really from me _always_ has this .sig -- mail without it is forged spam]
Received on Monday, 15 September 2003 11:49:01 UTC