General Entity References requiring a DTD

Why do G.E.R. require a DTD?
Does it make sense to create a DTD just because one wants to use a 
custom GRE in an XML instance document?
The worst situation is when one wants to use a custom GRE in a document 
which already has its own DTD.

-Claudio

Received on Thursday, 17 June 2004 17:07:54 UTC