cql bnf

I've attached two files (I don't know if this listserv allows attachments,
we'll see)
one is the "current" cql bnf, and the other is proposed to replace it,
written by Tony Hammond, who is on the SRU Editorial Board where we kicked
this around a bit but never reached a conclusion.

 I would like to use Tony's bnf  for the OASIS work.

I  haven't been able to give it the close scrutiny it needs, but perhaps we
could all take a look at it.

--Ray