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[Bug 6695] New: whiteSpace=collapse

From: <bugzilla@wiggum.w3.org>
Date: Fri, 13 Mar 2009 08:27:50 +0000
To: www-xml-schema-comments@w3.org
Message-ID: <bug-6695-703@http.www.w3.org/Bugs/Public/>

           Summary: whiteSpace=collapse
           Product: XML Schema
           Version: 1.0/1.1 both
          Platform: PC
        OS/Version: Windows NT
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Datatypes: XSD Part 2
        AssignedTo: David_E3@VERIFONE.com
        ReportedBy: mike@saxonica.com
         QAContact: www-xml-schema-comments@w3.org
                CC: cmsmcq@blackmesatech.com

According to a message from Dieter Guthmann on xmlschema-dev today, at least
one product (Liquid XML Studio) has interpreted the rules for
whiteSpace=collapse to mean that if the input consists entirely of space
characters, it is normalized to a single space.

The definition of "collapse" in 4.3.6 relies on the interpretation of the
undefined terms "leading" and "trailing", which means that this reading of the
spec cannot be dismissed as perverse. (Can one be a leader if one has no

A more rigorous definition might be:

  After the processing implied by replace, contiguous sequences of #x20's are
collapsed to a single #x20, and any #x20 at the start or end of the string is
then removed.

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Received on Friday, 13 March 2009 08:28:02 UTC

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