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[Bug 5639] when is value V a valid restriction of value Y?

From: <bugzilla@farnsworth.w3.org>
Date: Sat, 12 Apr 2008 03:30:37 +0000
To: www-xml-schema-comments@w3.org
Message-Id: <E1JkWRp-000683-Bd@farnsworth.w3.org>


           Summary: when is value V a valid restriction of value Y?
           Product: XML Schema
           Version: 1.1 only
          Platform: Macintosh
        OS/Version: All
            Status: NEW
          Keywords: editorial
          Severity: normal
          Priority: P2
         Component: Structures: XSD Part 1
        AssignedTo: cmsmcq@w3.org
        ReportedBy: cmsmcq@w3.org
         QAContact: www-xml-schema-comments@w3.org Derivation Valid (Restriction, Simple) appeals several
times to the notion of "valid restriction", e.g. clause 1.3.2 
"... the DF's {value} is a valid restriction of BF's {value} 
as defined in [XML Schema: Datatypes]."

Datatypes does not define the notion of one value being a 
valid restriction of another value in isolation; it defines
a number of constraints called "length valid restriction" and
"whitespace valid restriction" and so on.  The reference
from Structures needs to make clearer what is going on and what
parts of Datatypes are being appealed to.  Datatypes may also
need to define a more useful term for the required relation
on facet/value pairs.
Received on Saturday, 12 April 2008 03:31:07 UTC

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