Proposed response to DR 09-0192

[MURATA Makoto]

Closed without action

In 17.5.1.1 of Part 1, the description of the attribute "uri" already
specifies that
the value of this attribute is a namespace URI.  The syntax of namespace
URIs is defined in "Namespaces in XML 1.0" (W3C recommendation).

As pointed out by the submitter, an OOXML document is not conformant if it
the value of the w:uri attribute of an w:attr element is not a correct
namespace URI.  The same applies to other elements defined in 17.5.1.2
thru 17.5.1.6 and 17.5.1.9.

WG4 carefully studied the possibility of revising schemas (the use of
xsd:anyURI) for tighter validation of this attibute value.  However,
WG4 concluded that xsd:anyURI does not provide strict validation of
namespace URIs.  More about this, see "Bug 6089 - Revise anyURI to use
RFCs 3986 and 3987" in the W3C Bugzilla, available at

  http://www.w3.org/Bugs/Public/show_bug.cgi?id=6089

and a detailed analysis by an ex-chair of the W3C XML Schema WG, available at

  http://lists.w3.org/Archives/Public/www-xml-schema-comments/2010OctDec/0153.html





-- 

Praying for the victims of the Japan Tohoku earthquake

Makoto