[Bug 24537] New: Ambiguous rule #4 in union, intersect, except expressions streamability

https://www.w3.org/Bugs/Public/show_bug.cgi?id=24537

            Bug ID: 24537
           Summary: Ambiguous rule #4 in union, intersect, except
                    expressions streamability
           Product: XPath / XQuery / XSLT
           Version: Last Call drafts
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XSLT 3.0
          Assignee: mike@saxonica.com
          Reporter: abel.braaksma@xs4all.nl
        QA Contact: public-qt-comments@w3.org

nder 19.8.7.4 Streamability of union, intersect, and except expressions
(http://www.w3.org/TR/xslt-30/#streamability-of-union-expressions), the 4th
numbered item in the list, we write:

"If both operands are striding or crawling, then crawling and the wider of the
sweeps of the two operands (Example: * | */*)."

Does this mean 

a) if both operands are striding or both operands are crawling
b) if one of the operands is striding and the other crawling
c) if the operands are either striding or crawling or both

I think we can rule out (b), and I think it should be (c) (based on the example
given).

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Received on Wednesday, 5 February 2014 22:41:06 UTC