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Subject: Re: [xacml] string-equal and bags

On Wed, 11 May 2005, Rich Salz wrote:

> Test IIC003Policy.xml has this fragment:
>         <Condition
> FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
>             <AttributeValue
> DataType="http://www.w3.org/2001/XMLSchema#string";>convicted-felon</AttributeValue>
>             <SubjectAttributeDesignator
> AttributeId="urn:oasis:names:tc:xacml:1.0:conformance-test:group"
>                   DataType="http://www.w3.org/2001/XMLSchema#string"/>
>         </Condition>
> But SubjectAttributeDesignator returns a bag of strings and string-equal
> doesn't work on bags.
> Is the test wrong, or are we missing something?

Hmm, well, it's not so much that string-equal doesn't work on bags (which
your right, it doesn't), but this <Condition> is not type-correct. To be
correct, it would have to have a bag-string function, such as
"string-is-in", or use an <Apply FunctionId="string-one-and-only"> on the
SubjectAttributeDesignator expression.


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