Re: Wrapped around the axle: Refining and extending structures ac ross namespaces

Hi Mark,

> We have been using the second approach, and it is very elegant. The
> ability to target plug-in content without disturbing the surrounding
> context is very cool. It does, however, get very complicated when
> the type hierarchy gets deeper. That's also when restriction and
> extension come into conflict, because substitution groups want their
> descendants to be restrictions.

I think that the members of substitution groups' types only need to be
*derived* from the type of the head of the substitution group, not
necessarily restrictions?

Cheers,

Jeni

---
Jeni Tennison
http://www.jenitennison.com/

Received on Thursday, 20 December 2001 11:08:10 UTC