[Bug 11859] New: "^" is a valid regular expression

http://www.w3.org/Bugs/Public/show_bug.cgi?id=11859

           Summary: "^" is a valid regular expression
           Product: XML Schema
           Version: 1.1 only
          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


G.1, in a Note, states:

The string '^' is unambiguous: the grammar recognizes it as a positive
character group containing the character '^'.  But the grammatical derivation
of the string violates the rule just given, so the string '^' must not be
accepted as a regular expression.

The last phrase should read "must not be accepted as a character group". The
string "^" is fine as a regular expression; the problem being discussed is the
interpretation of "[^]".

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Received on Tuesday, 25 January 2011 09:12:57 UTC