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Re: Global attributes

From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
Date: 24 Aug 2001 11:37:30 +0100
To: Ken Haiya <kenhaiya@trestla.com>
Cc: <xmlschema-dev@w3.org>
Message-ID: <f5by9o9eob9.fsf@cogsci.ed.ac.uk>
Ken Haiya <kenhaiya@trestla.com> writes:

> I have an issue with attributes that are declared under the schema element.
> 
> Given the following global declarations (assuming default namespace is that
> of XML Schema, targetNamespace = "myNamespace", elementFormDefault =
> "qualified", attributeFormDefault = "unqualified":
> 
>     <attribute name = "foo" type = "string"/>
> 
>     <element name = "bar">
>         <complexType>
>             <attribute name = "baz" type = "integer"/>
>         </complexType>
>     </element>
> 
> Is the following markup valid in an instance (assuming default namespace =
> "myNamespace" and xmlns:my = "myNamespace")?
> 
>     <bar baz="27" my:foo="boo"/>
> 
> Since foo was never explicitly declared as an attribute of <bar>, shouldn't
> the validation fail?

Yes, it should give an error.

> Or is it the case that a global attribute can be added to *any*
> element whether declared by the element's type or not.

No.  Attributes and elements are parallel in this regard -- only
allowed if the relevant type definition explicitly 'ref's a global
declaration or includes a local declaration for them.

ht
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
          W3C Fellow 1999--2001, part-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
		     URL: http://www.ltg.ed.ac.uk/~ht/
Received on Friday, 24 August 2001 06:37:07 GMT

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