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Re: Elements cannot be described more than once in DTD, right ?

• From: Marcus Carr <mrc@a...>
• To: XML Developers' List <xml-dev@i...>
• Date: Wed, 22 Sep 1999 17:39:06 +1000

Pavel Velikhov wrote:

> Well, theoretically they are pretty serious problems. If you want to
> take a union of DTDs,
> say when integrating two XML databases, you might end up with a DTD that
> allows a lot of
> junk elements, while the original DTDs were strict enought. In the
> database setting, when
> the DTDs are used as database schemas, this leads to all sorts of
> problems.

Would you not use namespaces to distinguish the fragments originating from the two structures? I
would have thought this was a natural use for them - the simple disambiguation of names so as to
prevent clashes. I wouldn't care that I have more elements than I need because a:foo and b:foo have
identical content models, because it would all have been generated anyway. Could you provide an
example of a DTD being required to allow junk elements? Am I missing something?


--
Regards,

Marcus Carr                      email:  mrc@a...
___________________________________________________________________
Allette Systems (Australia)      www:    http://www.allette.com.au
___________________________________________________________________
"Everything should be made as simple as possible, but not simpler."
       - Einstein



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• References:
  • Elements cannot be described more than once in DTD, right ?
    • From: Sebastien Sahuc <ssahuc@i...>
  • Re: Elements cannot be described more than once in DTD, right ?
    • From: Pavel Velikhov <pvelikho@c...>
  • Re: Elements cannot be described more than once in DTD, right ?
    • From: Marcus Carr <mrc@a...>
  • Re: Elements cannot be described more than once in DTD, right ?
    • From: Pavel Velikhov <pvelikho@c...>

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