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Re: Extending DTDs for Backward Compatibility

• From: "Michael Kay" <M.H.Kay@e...>
• To: <xml-dev@i...>
• Date: Fri, 30 Jan 1998 14:35:27 -0000

-----Original Message-----
From: Joe Lapp <jlapp@w...>
To: xml-dev@i... <xml-dev@i...>
Date: 29 January 1998 22:07
Subject: Extending DTDs for Backward Compatibility


>I need to create DTDs that are extensible...

I've got the same problem: I essentially want a "standard" DTD
for an application domain that tolerates private extensions added
by individual implementors.

I had thought of doing it with something like
 <PRIVATE TAG="mytag">XXX</PRIVATE>; this
has the advantage it flags it up as a private extension, but
it's certainly ugly in other ways. Fortunately I'm not using
attributes extensively, it's only private elements I'm really
concerned with.

Mike Kay



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