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Here is the essence of your problem:
There is no way to say "any element other than x, y or z in any namespace"
in XML Schema. You can say "any element in any namespace", "any element in
a specific list of namespaces", "any element not in the target namespace".
There are no expressions for exclusionary constraints by element name.
What you want is a kind of cooccurrence constraint. Most cooccurrence
constraints on validity must be enforced some way other than XML Schema
validation (either using Relax NG or a some other validation scheme like
Schematron or in the application code). For example, you cannot express in
XML Schema that the attribute x must have a value at least 10 greater than
the value of attribute y.
----- Original Message -----
From: "Hess Yvan" <email@example.com>
To: "'Jeff Greif'" <firstname.lastname@example.org>
Sent: Friday, March 12, 2004 1:31 AM
Subject: RE: [xml-dev] Problem designing complexType accepting a specified
element and a llowing any others.
> The XML document for which I have to write the schema have all the
> under the section metadata as illustrated in my sample and should accept
> others element from the same namespace or from a other name space. I can
> change this requierement.