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[Bug 2138] R-147: Lexical form of duration components

From: <bugzilla@wiggum.w3.org>
Date: Mon, 12 Sep 2005 15:23:52 +0000
To: www-xml-schema-comments@w3.org
Message-Id: <E1EEq9w-0002n1-L1@wiggum.w3.org>


           Summary: R-147: Lexical form of duration components
           Product: XML Schema
           Version: 1.0
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XSD Part 2: Datatypes
        AssignedTo: cmsmcq@w3.org
        ReportedBy: sandygao@ca.ibm.com
         QAContact: www-xml-schema-comments@w3.org says "The values of the Year, Month, Day, Hour and Minutes components 
are not restricted but allow an arbitrary integer. Similarly, the value of the 
Seconds component allows an arbitrary decimal."

What exactly is the lexical form of arbitrary integer and arbitrary decimal? 
Does it mean the lexical form of the "decimal" and "integer" datatypes as 
defined in section 3.2.3 and 3.3.13? Apparently not since it says "P-1347M" is 
not allowed even though "-1347" is a perfectly good integer. If not, what does 
it mean?

Specifically, which of the following are allowed?

(a) P+1Y
(b) P-1Y
(c) P-0Y
(d) P.1S
(e) P1.S
ISO 8601 allows only a sequence of digits, but since ISO 8601 is not cited 
normatively a reader cannot rely on that. The provision of fractional sections 
goes beyond what ISO 8601:1988 allows. However, according to my (draft and thus 
perhaps no longer correct) copy, ISO 8601:2000 does not allow any of (d) or (e) 
(even though they are valid instances of the XML Schema decimal data type). 

Received on Monday, 12 September 2005 15:24:03 UTC

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