[Bug 5376] [SCD] Richer extension story

http://www.w3.org/Bugs/Public/show_bug.cgi?id=5376

           Summary: [SCD] Richer extension story
           Product: XML Schema
           Version: unspecified
          Platform: PC
               URL: http://www.w3.org/XML/Group/2007/09/scds
        OS/Version: Windows NT
            Status: NEW
          Severity: normal
          Priority: P2
         Component: SCDS: XML Schema Component Designators
        AssignedTo: holstege@mathling.com
        ReportedBy: holstege@mathling.com
         QAContact: www-xml-schema-comments@w3.org


See: http://www.w3.org/XML/Group/2007/09/scds

Provide explicitly for extension to SCDs in the form of:
* new axes (in XPath, the axis names are part of the grammar; but there is a
distinct grammatical construct from which all axis names are derived;
introducing a new axis name thus involves minimal derangement of the rest of
the grammar)
* extension functions (e.g. to allow implementations to define accessors for
properties not exposed by accessors in the SCDs spec); in XPath, the grammar
suffices to recognize function calls; the list of known functions is part of
the context, and can be extended by implementations, or by users under the
right circumstances. The ability to define extension functions has worked well
for XPath; we commend this model to you.

Received on Tuesday, 15 January 2008 22:27:10 UTC