- From: Eliot Kimber <ekimber@innodata-isogen.com>
- Date: Tue, 12 Jun 2007 00:11:19 -0400
- To: <xmlschema-dev@w3c.org>
- Cc:
In XML DTDs, one can override the declaration of an attribute declared in an external declaration set by declaring the overriding version earlier, e.g.: <!DOCTYPE foo SYSTEM "mybase.dtd" [ <!ATTLIST foo bar CDATA #IMPLIED ]> <foo bar="baz/> Where mybase.dtd declares the element type "foo" with the attribute bar with a different type. I don't see an obvious way to do with with XSD using redefine. At least, when I add a declaration to a redefine that otherwise works (to add a new attribute not declared in the base type being redefined), Xerces 2.9 says I have a duplicate attribute declaration. I didn't see anything about this specifically in the XSD Primer and I'm afraid I find the formal definition largely impenetrable (at least at this late hour). Have I missed something? Note, in my specific case I don't have control over the base schemas, so I can't do something like pull the attributes to be redefined out into their own attribute group, although I'm not sure that would solve the problem. Thanks, Eliot -- W. Eliot Kimber Professional Services Innodata Isogen 8500 N. Mopac, Suite 402 Austin, TX 78759 (214) 954-5198 ekimber@innodata-isogen.com www.innodata-isogen.com
Received on Tuesday, 12 June 2007 04:11:55 UTC