Linking DTD's

David Megginson david at
Tue Apr 20 20:46:50 BST 1999

Campana, Sal writes:

 > Is it possible to nest DTD's?  I would like to build a DTD from smaller
 > DTD's...Is this possible?

Yes, but it's generally brittle -- about the same level of difficulty
as doing object-oriented programming in C or BASIC (or, to remove the
sexist part of an 18th-century quip, it's like a dog standing on its
hind legs: it's not done well, but it's quite astounding that it's
done at all).  You've got to use lots of parameter-entity trickery if
you want to be able to extend the content models of what you're

 > Can someone send me an example or a location which contains an example of
 > this...

Look at the full TEI DTDs.

All the best,


David Megginson                 david at

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