In article <44496AF2.6010602 at lexicon.net>,
John Machin <sjmachin at lexicon.net> wrote:
>To meet your specifications, the module would need to incorporate a
>mini-language:
>
>if a and (b or c): nasty("blah 1")
>if not (a or b or c or d): nasty("blah 2")
>if a and c and not d: nasty("blah 3")
Prolog-style predicates. :)