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I think you can rewrite
((major | external)* | (major | minor | version)* )
as
(major)* ( (external, (major | external)* ) |
((minor | version), (major | minor | version)*
)?
Michael Kay
http://www.saxonica.com/
> -----Original Message-----
> From: Niels Peter Strandberg [mailto:nielspeter@npstrandberg.com]
> Sent: 16 December 2005 15:53
> To: xml-dev@lists.xml.org
> Subject: [xml-dev] XML schema cos-nonambig problem
>
> This error message below is reported back from Xerces. The
> problem is
> the "major" element. How can I reconstruct my XML Schema so that I
> can avoid this error?
>
> cos-nonambig:
> "http://www.polopoly.com/polopoly/cm/app/xml":major and
> "http://www.polopoly.com/polopoly/cm/app/xml":major (or
> elements from
> their substitution group) violate "Unique Particle Attribution".
> During validation against this schema, ambiguity would be
> created for
> those two particles.
>
>
> <xs:complexType name="contentiddef">
> <xs:choice>
> <xs:choice minOccurs="0" maxOccurs="unbounded">
> <xs:element ref="x:major"/>
> <xs:element ref="x:externalid"/>
> </xs:choice>
> <xs:choice minOccurs="0" maxOccurs="unbounded">
> <xs:element ref="x:major"/>
> <xs:element ref="x:minor"/>
> <xs:element ref="x:version"/>
> </xs:choice>
> </xs:choice>
> </xs:complexType>
>
> Thanks!
>
> Niels Peter
>
>
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