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- From: "Rick Jelliffe" <ricko@allette.com.au>
- To: <xml-dev@ic.ac.uk>
- Date: Sat, 11 Sep 1999 14:20:42 +0800
From: Simon St.Laurent <simonstl@simonstl.com
>No, you don't have the choice of applying _validation_ at whatever
level
>you like - currently, you have the choice of applying it or not
applying it
>during the parser.
It seems a bit strange to say on the one hand that "XML is too
monolithic" and at the same time that namespaces should not be a
separate layer and should be folded into the base spec. Which is not to
say that it is an impossible view.
However, I don't understand the quoted paragraph: who has the choice of
validation? The recipient of a document can choose validation only by
installing a validating parser; the generator of a document can only
choose validation the same way! The instructions needed for a document
to *instruct* a system as to what kind of validity may be required are
missing from any XML spec: the standalone declaration is advisory.
Without such a mechanism, validity cannot be part of schemata: a
document cannot assert that it should be valid (according to a DTD or
any other schematic) before it is used. I think this is a hole that
should be plugged.
Rick Jelliffe
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