Inheritance using DTDs

Avneet Sawhney sawhneya at
Fri Jan 22 15:36:27 GMT 1999


Thanks for the replies.

So, since DTD's were not designed to support inheritance, what are my options
here?  Even declaring all attributes and elements as entities is not sufficient.

Will namespaces (and DTD's) be sufficient, or are there any proposed schemas that
have proper inheritance as a required spec?

Sorry if this is obvious, but I would like to know my alternates to vanilla



david at wrote:

> Avneet Sawhney writes:
>  > The more I look into it, I don't see DTD's as an efficient way to
>  > support inheritance. The use of internal subsets seems just a
>  > workaround. The use of parameter entities and the INCLUDE and
>  > IGNORE statements require too much collaboration between the
>  > interested parties. I guess you could make every element and
>  > attribute an entity, but that does not seem appropriate.
> That's exactly what TEI did in their SGML DTD (and more).  Take a look
> at the declaration for <p> (paragraph):

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