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   Re: [xml-dev] life support for DTDs? was RE: [xml-dev] misprocessing nam

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  • To: "Rick Jelliffe" <ricko@allette.com.au>, "The Deviants" <xml-dev@lists.xml.org>
  • Subject: Re: [xml-dev] life support for DTDs? was RE: [xml-dev] misprocessing namespaces)
  • From: "Jonathan Borden" <jborden@mediaone.net>
  • Date: Fri, 1 Feb 2002 06:30:50 -0500
  • References: <6D54B6A5DCF9D311971600D0B74758C101441B66@amsmsx02.gorillapark.com> <098701c1aa69$4d4d3cc0$0a2e249b@nemc.org> <010801c1aa7d$f828ec70$4bc8a8c0@AlletteSystems.com>


Wow. it is that easy. So what is the excuse for not doing this?


From: "Jonathan Borden" <jborden@mediaone.net>

> This applies to both namespace and DTDs. Perhaps if anyone is really
> interested in keeping DTDs alive, they might publish such a proposal to
> the problem, accompanied by some software that implements the proposal.
> we would be able to see if it flies.

Actually, it does not even need any change in DTD syntax AFAIK.
It just needs a change in the way that validation is performed using DTDs.

The validator needs to understand that given
    <!ATTLIST x   xmlns CDATA "123">
    <!ATTLIST x   xmlns CDATA #FIXED "123">
etc. that an instance with
    <y:x   xmlns:y="123">
is correct.

You would also need the rule that an unprefixed element name
could only be declared once per DTD, which is not particularly

Rick Jelliffe

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