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   RE: [xml-dev] using more then one schema within one XML

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Quoting Alessandro Triglia <sandro@mclink.it>:

I believe he's saying that an xsi:schemaLocation attribute can have 
the value

xsi:schemaLocation="ns1 schemalocation1 ns2 schemalocation2 ..."

but taht some processors only see the first pair, and  ignore 2, 3 ....

> 
> 
> > -----Original Message-----
> > From: Chiusano Joseph [mailto:chiusano_joseph@bah.com] 
> > Sent: Thursday, November 04, 2004 13:27
> > To: pat; XML :: dev
> > Subject: RE: [xml-dev] using more then one schema within one XML
> > 
> > 
> > For W3C Schema, this is done using the xsi:schemaLocation and
> > xsi:noNamespaceschemaLocation attributes. Please note that 
> > some parsers
> > ignore all occurrences past the first one.
> 
> 
> My interpretation is that a parser should issue an error if it encounters
> an
> "overriding" xsi:schemaLocation or xsi:noNamespaceSchemaLocation after it
> has already used the first xsi:schemaLocation and
> xsi:noNamespaceSchemaLocation:
> 
> ---------------------
> 4 xsi:schemaLocation and xsi:noNamespaceSchemaLocation [attributes] can
> occur on any element. However, it is an error if such an attribute occurs
> after the first appearance of an element or attribute information item
> within an element information item initially .validated. whose [namespace
> name] it addresses. [...]   Although schema location attributes can occur
> on
> any element, and can be processed incrementally as discovered, their effect
> is essentially global to the .assessment.. Definitions and declarations
> remain in effect beyond the scope of the element on which the binding is
> declared.
> ---------------------
> 
> In other words, if a parser encounters a xsi:noNamespaceSchemaLocation at
> some place, then validates an element with no namespace, then encounters
> another xsi:noNamespaceSchemaLocation further on, it should issue an error.
> Are you saying  that *some* parsers issue an error and some don't?  Or are
> you saying that you would expect a parser to switch to the new "location"
> indicated by the overriding xsi:schemaLocation or
> xsi:noNamespaceSchemaLocation?
> 
> Alessandro Triglia
> 
> 
> > 
> > Kind Regards,
> > Joseph Chiusano
> > Booz Allen Hamilton
> > Strategy and Technology Consultants to the World
> >  
> > 
> > > -----Original Message-----
> > > From: pat [mailto:pat@xvalheru.org] 
> > > Sent: Thursday, November 04, 2004 11:49 AM
> > > To: XML :: dev
> > > Subject: [xml-dev] using more then one schema within one XML
> > > 
> > > Hi All,
> > > 
> > > Is it possible to define more then one schema (DTD or 
> > > XMLSchema or ...) within one XML document and mix them using 
> > > namespaces ??? Something like:
> > > <first:element/>
> > > <second:element/>
> > > 
> > > Thanks to all
> > > 
> > >      Pat
> > > 
> > > 
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