So since a namespace subject to 4.2 must satisfy exactly one of
4.2.[1-4], the QName's namespace cannot both be the XML Schema namespace
and be specified in an <import>; therefore <import> of the XML Schema
namespace is not allowed.
Is this the intended resolution of the question?
Jeff
On 5/6/2010 2:10 AM, Michael Kay wrote:
>
> Like many omissions in XSD 1.0, this one is tidied up in XSD 1.1: see
>
> http://www.w3.org/TR/xmlschema11-1/#src-resolve (clause 4.2.3)
>
> You'll see that this clause is missing from XSD 1.0:
>
> http://www.w3.org/TR/xmlschema-1/#src-resolve
>
> which is a known bug.
>
> Regards,
>
> Michael Kay
> http://www.saxonica.com/
> http://twitter.com/michaelhkay
>
>> -----Original Message-----
>> From: Jeff Greif [mailto:] On Behalf Of Jeff Greif
>> Sent: 06 May 2010 04:48
>> To:
>> Subject: [xml-dev] Need to import the XML schema namespace
>>
>> Most XML Schemas in the wild reference some of the types in
>> the http://www.w3.org/2001/XMLSchema namespace, but they
>> usually do so without explicitly importing it, so it
>> apparently unnecessary in practice, if not normatively.
>>
>> I can't find any reference in the XML Schema 1.0 spec that
>> says it is either illegal or unnecessary to import this
>> namespace, for example, using xs:import. Similarly, I can't
>> find any further interoperability guidelines on this subject
>> in the WSI-Basic Profile 1.0.
>>
>> Does anyone have a reference to a definitive statement of
>> whether this import is required, optional or forbidden in XML
>> Schemas that reference the data types of this namespace?
>>
>> Jeff
>>
>>
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>
>
