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   Re: Namespaces and DTDs

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  • From: james anderson <James.Anderson@mecomnet.de>
  • To: "xml-dev@ic.ac.uk" <xml-dev@ic.ac.uk>
  • Date: Wed, 10 Mar 1999 17:42:17 +0100

all of which presumes that you've elevated prefixes to the status of uri's -
attribute defaults or not.

Richard Goerwitz wrote:
> Ronald Bourret wrote:
> > The only inobvious bit is that, because there is no way to declare
> > namespaces in the DTD, you can't declare different default namespaces
> > for different parts of the DTD
> Because the DTD is not namespace aware, all it can deal with are the pre-
> fixes you declare (not the URLs associated with them).  Since these pre-
> fixes are declared in the document content, you end up with a peculiar
> situation in which the DTD has to be written according to declarations
> in a given document instance, rather than the reverse.  Worse yet, there
> is no way to be sure that the various documents being validated against
> a particular DTD use the prefixes correctly, with the correct URLs, un-
> less you make extensive use of attribute defaults - which, ironically,
> means we now need the DTD (probably an external one, typically with a
> bunch of parameter entities; so get your validating parser ready).

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