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- From: Marcus Carr <mrc@allette.com.au>
- To: xml-dev@ic.ac.uk
- Date: Mon, 01 Jun 1998 09:51:05 +1000
Tim Bray wrote:
> Hmm, this line of thought may be perpetuating what I see as one of
> the shortcomings of DTDs, namely that the DTD has to describe the
> whole document, i.e. a class of languages. What about partial
> validation/constraints? I think it's important that child-of-DTD
> support compond documents & partial validation. So in the terms above,
> maybe these things define sets of elements and attributes, rather
> than whole documents.
I would have thought that support for compound documents and partial validation
would involve much more than the relatively simple current goals of Xschema. It
seems that you would have to build in the ability to map the relationships and
dependencies between documents to support compound documents and the ability to
locate a particular occurrence of an element from an otherwise unvalidated soup
for partial validation. As the exact contents of the documents or fragments may
not be known until processing time, wouldn't this be better handled dynamically
by an application than more statically by Xschema? Also, by describing the entire
structure, aren't you describing the smallest (as well as the biggest) fragment.
I would have thought this was the most flexible coverage - am I missing
something?
--
Regards
Marcus Carr email: mrc@allette.com.au
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