[Bug 19257] New: [XQ3.0] Context item must be a singleton


           Summary: [XQ3.0] Context item must be a singleton
           Product: XPath / XQuery / XSLT
           Version: Last Call drafts
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XQuery 3.0
        AssignedTo: jonathan.robie@gmail.com
        ReportedBy: mike@saxonica.com
         QAContact: public-qt-comments@w3.org

In 4.17, Context item declaration, the specification does not make it clear
what happens if the initial value of the context item evaluates to (a) an empty
sequence, or (b) a sequence containing more than one item. 

The second case is clearly an error, and we need to say so.

The first case is either an error, or results in the context item being
"absent" and therefore unusable.

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Received on Wednesday, 3 October 2012 17:16:31 UTC