- From: Kasimier Buchcik <kbuchcik@4commerce.de>
- Date: Wed, 16 Mar 2005 21:39:58 +0100
- To: xmlschema-dev@w3.org
Hi,
I have a question regarding the component constraint "Derivation Valid
(Restriction, Simple)" related to the draft Type Library at
"http://www.w3.org/2001/03/XMLSchema/TypeLibrary.xsd".
We have the following definition in
"http://www.w3.org/2001/03/XMLSchema/TypeLibrary-nn-array.xsd" :
<xs:simpleType name="valuesType">
<xs:list itemType="xs:anySimpleType" />
</xs:simpleType>
According to "http://www.w3.org/TR/xmlschema-1/#cos-st-restricts" :
2 If the {variety} is list, then all of the following must be true:
2.1 The {item type definition} must have a {variety} of atomic or
union (in which case all the {member type definitions} must be
atomic).
and "http://www.w3.org/TR/xmlschema-2/#anySimpleType-component" :
Schema Component: anySimpleType
[...]
{variety}
absent
Since the variety of the item type definition "anySimpleType" is absent,
I would expect the simple type definition to be invalid.
I'm confused with the results of XSV 2.7 and Xerces 2.6.2, which both do
not report this error. Should I stick with the spec, or do I read it
wrong?
An example which uses this simple type:
Instance:
<?xml version="1.0"?>
<foo values="la la la"/>
Schema:
<?xml version="1.0"?>
<xsd:schema
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:tl="http://www.w3.org/2001/03/XMLSchema/TypeLibrary">
<xsd:import
namespace="http://www.w3.org/2001/03/XMLSchema/TypeLibrary"
schemaLocation="http://www.w3.org/2001/03/XMLSchema/TypeLibrary.xsd"/>
<xsd:element name="foo" type="tl:vectorAttrVals"/>
</xsd:schema>
Regards,
Kasimier
Received on Wednesday, 16 March 2005 22:24:02 UTC