DTDs to Schema, what am I missing?

Consider the following common case in DTDs:

<!ENTITY % obj.mix "a|b|c">
<!ENTITY % para.mix "d|e|f">
<!ELEMENT foo (%obj.mix;|%para.mix;)+>

I can't think of a way to express this idiom in XML Schema that
retains obj.mix and para.mix as discrete "things" and combines them
as necessary.

Am I missing something?

                                        Be seeing you,
                                          norm

-- 
Norman Walsh <ndw@nwalsh.com> | Things work out best for those who make
http://nwalsh.com/            | the best of the way things work out.

Received on Friday, 18 August 2000 11:39:13 UTC