[osis-core] Proposed works syntax

[Harry Plantinga]

> I think I'd suggest a work name be like a namespace prefix: can
> contain the usual XML name stuff (at least; but no colon) -- and is
> sep. from the ref by a colon.
>
> Should we make it a validity requirement that all works cited be
> declared in this thing up top, or should we be loose and not
> *require* it?

I don't think you mean validity in the XML sense -- I don't see how you
could check this proposed requirement with an XML parser. Are you
envisioning another, separate parsing stage or program that would make
additional checks on the document to see if it is "osis-valid" or some such?

-Harry