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Hi Tony,
On 30 January 2001 at 14:57:44 -0500 (which was 19:57 where I live)
Tony Owens wrote and made these points:
TO> For instance, if I define two AND filters (say, A AND B), and a
TO> single 'OR' (alternative) filter, C, how is the whole filter
TO> interpreted:
TO> (A AND B) OR C?
Yes
TO> (A OR C) AND (B OR C)?
TO> or some other way?
No.
If you have 3 filters on the first page (A, B, C) and 2 sets on the
alternatives pages (D, E) and (F) then the logic is:
(A AND B AND C) OR (D AND E) OR (F).
Is that any clearer?
Just to obfuscate a little bit more, you *can* use '|' as OR in a
signal string to allow even more complex constructs like:
((A|B) AND C) OR (D AND E) OR ((F|G) AND H AND (I|J))
Yeah - I know - I've gone too far now :-( ... sorry.
- --
Cheers -- .\\arck D. Pearlstone -- Moderator TBUDL / TBBETA / TBTECH
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[ Any opinions are my own and not those of RIT labs ]
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