• From: Jeff Greif <jgreif@a...>
• To: Michael Kay <mike@s...>
• Date: Thu, 06 May 2010 06:28:55 -0700

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:jeff.greif@g...] On Behalf Of Jeff Greif
>> Sent: 06 May 2010 04:48
>> To: xml-dev@l...
>> Subject:  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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> 
> 

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  • Need to import the XML schema namespace
    • From: Jeff Greif <jgreif@a...>
  • RE: Need to import the XML schema namespace
    • From: "Michael Kay" <mike@s...>