Namespaces and DTDs

[Marc.McDonald at Design-Intelligence.com]

For a more complete solution than the option (emphasize option) of a 
DTD associated with a namespace prefix and URI, I would add the means 
to declare a namespace, prefix and DTD in a DTD.



Marc B McDonald
Principal Software Scientist
Design Intelligence, Inc
www.design-intelligence.com


----------
From:  james anderson [SMTP:James.Anderson at mecomnet.de]
Sent:  Wednesday, March 10, 1999 8:42 AM
To:  xml-dev at ic.ac.uk
Subject:  Re: Namespaces and DTDs

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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