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[Michael Leditschke]
Sorry, I must have not changed all the urn: namespaces back to http:/ In
hte examples, they _all__ started out the same (http://) then __all___ got
changed. I though I had proofread enought, and I appologize.
Cheers,
Tom P
> Hi Tom. I tried to reproduce your results without success.
>
> Given your files below, both XMLSpy 4.4 and XSV 1.4
> produce errors, and I think this is correct.
>
> Your instance document associates the prefix xlink with
> urn:www.w3.org/1999/xlink, yet your schema associates
> xink with http://www.w3.org/1999/xlink. The XMLSpy
> error message is saying that its looking for an href
> attribute in the http:... namespace but didn't find one,
> as the one in the instance is associated with urn:...
>
> XSV complains similarly, and also says that the attribute
> it did find is invalid.
>
> If I take your files and change all references
> to http://www.w3.org/1999/xlink in the schemas to
> urn:..., XMLSpy and XSV validate the
> instance file ok.
>
> I'm probably missing something obvious, or have
> I misunderstood your concern?
>
> Regards
> Michael
>
>
>
>
>
> > -----Original Message-----
> > From: Thomas B. Passin [mailto:tpassin@comcast.net]
> > Sent: Wednesday, 24 July 2002 2:56 PM
> > To: xml-dev@lists.xml.org
> > Subject: Re: [xml-dev] URIs harmful (was RE: [xml-dev] Article: Keeping
> > pa ce with James Clark)
> >
> >
> > [Michael Leditschke]
> >
> > > I've used URN:... in a schema namespace in XMLSpy since
> > > V3 without a problem.
> > >
> >
> > You just did not hit a winning combination. I just reconstructed the
> > circumstances. I saw the problem when Schema A, a no-namespace schema,
> > imports schema B, which does use a namespace. Changing the http://
> > namespace to urn: causes the instance document to fail with Spy but
still
> > succeed with xsv. Here are three files that illustrate. They validate
OK
> > with both Spy 4.4 and xsv (downloaded today). Change all the xlink
> > namespaces to start with "urn:" instead of "http://";. Now Spy fails to
> > validate while xsv still does. Spy says "Required attribute '???:href'
of
> > element 'base' missing".
> >
> > As I see it, this is a fairly serious bug in a generally very
> > good product.
> >
> > Tom P
> >
> > Schema A:
> >
> > <xs:schema xmlns:xlink="http://www.w3.org/1999/xlink";
> > xmlns:xs="http://www.w3.org/2001/XMLSchema";>
> > <xs:import namespace="http://www.w3.org/1999/xlink";
> > schemaLocation="xlink3.xsd"/>
> > <xs:element name="base" type="xlink:simpleHrefType"/>
> > </xs:schema>
> >
> > Schema B, the imported schema:
> >
> > <xs:schema targetNamespace="http://www.w3.org/1999/xlink";
> > xmlns:xs="http://www.w3.org/2001/XMLSchema";
> > attributeFormDefault="qualified">
> > <xs:complexType name="simpleHrefType">
> > <xs:simpleContent>
> > <xs:extension base="xs:anySimpleType">
> > <xs:attribute name="href" type="xs:anyURI" use="required"/>
> > </xs:extension>
> > </xs:simpleContent>
> > </xs:complexType>
> > </xs:schema>
> >
> > The instance document:
> >
> > <base xmlns:xlink="urn:www.w3.org/1999/xlink"
> > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> > xsi:noNamespaceSchemaLocation="base1.xsd"
> > xlink:href="zzz" />
> >
> >
> >
> >
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>
>
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