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Re: [xml-dev] Does a XSD schema define the minimum or maximum structure ofan XML doc?

Ben Stover wrote:

> That would mean:
> If the XSD schema designer does NOT insert xs:any or xs:anyAttribute
> tags then (=default) additional 
> attributes are NOT allowed
> elements are NOT allowed
> when the XML should be valid?
> Is this your statement?

It may be worth noting that features proposed for XML Schema 1.1 make it 
easier, should you wish to, to act as if there is a wildcard by default at 
the end of each content model, or if you prefer, in between every explicit 
particle in the model.  This is still explicit, in the sense that at the 
top of the schema you say that you want it to work this way.  It still 
means that you have in a sense said "all this extra stuff is actually 
legal in my language, even if I don't call it out one element name at a 
time".  Of course, you can continue to code schemas in the traditional 
style, as you outline above.   In that case, content will be accepted only 
where explicitly allowed for by an element declaration, attribute 
declaration or explicit wildcard.


Noah Mendelsohn 
IBM Corporation
One Rogers Street
Cambridge, MA 02142

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