Namespaces: silly question

David Megginson david at
Fri Aug 7 15:06:15 BST 1998

Lars Marius Garshol writes:

 > Sral, the naive XML developer, is developing an XML application. He
 > writes a DTD that embeds John Cowans IBTWSH DTD in a certain place to
 > provide for documentation. 


 > I can't imagine that the XML WG has failed to think of this, so if
 > some kind soul could point out what I have failed to think of here I
 > would be most grateful. Thanks.

Neither the original nor the new version of the namespaces spec was
designed to deal with DTD composition.  It is possible to write a DTD
that deals with specific, constrained uses of namespaces (and even
hides the namespace machinery in #FIXED attribute values), but it is
not possible to combine DTD fragments arbitrarily.

All the best,


David Megginson                 david at

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