Ray,
> 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.
I've had a quick look and I'm not sure if the new version says
the same things about the so-called reserved words and, or, not, prox
and sortby.
I pretty sure the original CQL allowed (horrendous) queries like
and or not -- in pqf notation: @or "and" "not"
and and and -- in pqf notation: @and "and" "and"
etc, etc, ...
Tony's document says and, or, not, prox and sortby are reserved words
and are specifically excluded from simple-name and simple-string.
The original document has the following:
"Reserved words are 'and', 'or', 'not', and 'prox' (case
insensitive). When a reserved word is used in a search term,
case is preserved."
Which to me, seems to say that they are reserved words and then
goes on to say, well actually you can use them anyway.
I think Tony's version excludes queries like "and and and"
-- which may actually be a good thing.
Ashley.
--
Ashley Sanders
Copac http://copac.ac.uk A Mimas service funded by JISC
