BNF grammar for TEI DTD?

[John Baima]

Talking about writing software for TEI documents, does there
exist a BNF grammar for the TEI DTD?? There are quite a number
of tools for BNF grammars and for me, at least, it would be the
only way I could justify writing a "throw away" parser as had
been suggested. My impression based on a limited examination is
that it would not be easy. However, I would think it important
for several potential software developers. No??

John Baima