[Bug 4390] What happens when attribute wildcard union is not expressible

http://www.w3.org/Bugs/Public/show_bug.cgi?id=4390

           Summary: What happens when attribute wildcard union is not
                    expressible
           Product: XML Schema
           Version: 1.0 only
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Structures: XSD Part 1
        AssignedTo: cmsmcq@w3.org
        ReportedBy: sandygao@ca.ibm.com
         QAContact: www-xml-schema-comments@w3.org


Section 3.4.2 talks about the need to union (and intersec) attribute wildcards
in complex type extension; section 3.10.6 talks about how attribute wildcards
are unioned (and intersected) and mentions the possibility for the result not
to be expressible; section 3.4.3 indicates it's an error for the result of
"intersection" not to be expressible.

But nowhere in the spec talks about what happens when the union is not
expressible.

A clause 5 is probably in order for 3.4.3:

"5 If clause 3.2.2.1.2 in the correspondence specification above for {attribute
wildcard} is satisfied, the intensional union must be expressible, as defined
in Attribute Wildcard Union (§3.10.6)."

Received on Tuesday, 13 March 2007 14:59:02 UTC