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   Re: Namespaces hate validation!

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  • From: james anderson <James.Anderson@mecomnet.de>
  • To: "xml-dev@ic.ac.uk" <xml-dev@ic.ac.uk>
  • Date: Wed, 06 Jan 1999 18:45:31 +0100

Ronald Bourret wrote:
> ...
> If you are stating that the algorithm doesn't work because you have to
> inspect the entire document first, that's a circular argument.  The
> algorithm clearly states that the document must be preprocessed, so you
> can't use that as an argument against it working.  (Note that such
> preprocessing is necessary to use the algorithm with current parsers.  This
> prefix substitution could be done at parse time by a specialized parser.)

this is the method used by the processor described earlier. (http://www.lists.ic.ac.uk/hypermail/xml-dev/9812/0276.html)

> > > Well, tedious enough to make it unlikely that anyone will use
> > > validation on documents that utilize namespaces. It is hard.
> > > It is too hard. And for that reason, among others, Veo has
> > > vociferously opposed "Namespaces in XML".
> This might be true, although it is easy enough to write a tool that did the
> preprocessing necessary for this to work with the current batch of parsers.

the trivial demonstration is the reserialization in the cited note.

>  In the long run, these questions disappear anyway, as the current schema
> proposals can declare which namespace a given element or attribute belongs
> to, thus solving the problem of no namespace declarations in the DTD.

schemas have many arguments in their favour, but are not strictly necessary in
order to accomplish this.

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