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- From: Paul Prescod <paul@prescod.net>
- To: XML-Dev Mailing list <xml-dev@ic.ac.uk>
- Date: Wed, 01 Sep 1999 21:08:32 -0400
David Megginson wrote:
>
> What happens when a vendor wants to create a new element that will
> appear in, say, an HTML paragraph? Obviously the new element itself
> (such as <ms:spreadsheet> or <ra:videoclip>) will have to be in a
> different Namespace -- that's the whole point -- but will the
> containing paragraph have to be in a different Namespace as well?
Today? Yes. XHTML is not designed nor defined to allow other element
types to be mixed in nor to BE mixed in.
Tomorrow, XHTML is supposed to be defined to be extensible. Then a
single namespace (and schema) will be sufficient.
The problem is that people want to act as if it is extensible today
which it is clearly not (name notwithstandaing). Ading a namespace to
something doesn't magically make it into something that can be mixed
into other DTDs.
Paul Prescod
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