Namespaces and XML validation

james anderson James.Anderson at
Tue Aug 11 12:04:53 BST 1998

the assertion below re validation appears here time and again. this forum has,
however, yet to bear witness to such a demonstration.

Peter Murray-Rust wrote:
> At 12:27 10/08/98 -0700, Murray Altheim wrote:
> [...]
> >
> >Peter,
> >
> >over the working group archives to see that compatibility is not a given.
> These are not generally available...

would someone be so kind as to edit the appropriate contributions to the
working group archive to make them available for public consumption.

> >In all but trivial DTDs namespaces have been shown to be incompatible with
> >XML 1.0 validation (or at very least more manual effort than would be
> >worth the trouble*). The solution for validating moderately complex
> >structures using qualified names without wholescale rewriting of existing
> >DTDs has not yet been found. It is a given that any such alternative

please give examples of the cases which cannot be validated. 

> >validation solution would be inherently incompatible with existing the
> >validation methodology (ie., the SGML-compatible declaration syntax in
> >XML 1.0).

this may be true (wrt. the methodology, not the syntax), but, in the long run,
that does not matter.

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