Re: attribute declaration having use=required and a fixed value

"Zafar Abbas" <zafara@microsoft.com> writes:

> I have a question about the following text in the 'Xml Schema Part 1'
> regarding schema attribute declarations:
>
> ---
> Attribute Declaration Representation OK:
> ...
> 2 If default and use are both present, use must have the *actual value*
> optional.
> ---
>
> Does the same rule apply to fixed values?

No.

> Is the following attribute declaration allowed?

Yes.

> If it is, what should be the behavior during instance validation?

> <xs:attribute name="att" use="required" fixed="37" />

The relevant element info items must have an 'att' attribute, which
must have the *actual value* 37.  In otherwords, the document must
contain

   att="37"

since you have defaulted the type to anySimpleType.

ht
-- 
 Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
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Received on Friday, 13 February 2004 04:30:30 UTC