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Re: complexType : extension of a sequence by a choice ?

From: Henry S. Thompson <ht@inf.ed.ac.uk>
Date: Mon, 09 Feb 2004 08:45:47 +0000
To: noah_mendelsohn@us.ibm.com
Cc: "'Bruno Chatel'" <bcha@chadocs.net>, "Michael Kay" <mhk@mhk.me.uk>, xmlschema-dev@w3.org
Message-ID: <f5bn07ssksk.fsf@erasmus.inf.ed.ac.uk>

noah_mendelsohn@us.ibm.com writes:

> I >think< we've actually had some user requests for such extension of 
> "all", but unless Michael Kay is making such a request now (I don't think 
> he is), I can't immediately find the reference.  I think it's a nice to 
> have, but have no personal urgent need for such a new feature.  In any 
> case the fact that it would violate the invariant quoted above doesn't 
> particularly bother me.

I think it should bother you, because it's fundamental for any versioning
strategy which expects V1 software to process V2 instances by
depending on the invariants, which I at least think is a very sensible
approach.

ht
-- 
 Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
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Received on Monday, 9 February 2004 03:46:02 GMT

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