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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