Re: Animal-friends implemented as a pattern (Re: XML-Data:advantages over DTD syntax?)

Henry S. Thompson (ht@cogsci.ed.ac.uk)
Wed, 1 Oct 97 15:49:47 BST

Michael said:
> ><!ENTITY % animal-friends-content
> > " ( pet | cat | dog %extra-animal-friends-content )* "
> >
> >so that you could do
> >
> ><!ENTITY % extra-animal-friends-content '| stick-insect'>
> >
> >[Note this is not valid XML, I don't think]
>
> I believe it is valid XML, at least according to the spec of early
> August. The internal subset cannot have parameter entity references,
> but there's no rule against parameter entity declarations in the
> internal subset.

Michael is absolutely correct -- I was confusing ENTITY definitions
with CONTENT model definitions. One of the non-obvious consequences
of the current (8879-inherited) situation is that the above is OK, but
the following isn't:

<!ELEMENT animal-friends ( pet | cat | dog %extra-animal-friends-content )*>

ht