The reason I want the BNF description is that I want to _attempt_ a java lexer and parser that will trace the execution flow of a given subroutine and emit some documentation fragments that I can then use to make a flow chart. I am particulary interested in documenting all the logical evaluations that occur at IF...THEN, CASE, LOCATE ... THEN, WHILE, UNTIL, etc that lead to certain database actions. I want to be able to say for example for field X of file Y to be update in routine ABC conditions 1 2 3 should have been met.
----- Original Message ---- From: Martin Phillips <martinphill...@ladybridge.com> To: U2 Users List <u2-users@listserver.u2ug.org> Sent: Wednesday, 5 August, 2009 10:02:01 Subject: Re: [U2] INFO BASIC BNF Spec Hi Marco, > Can anyone please help me with the full BNF spec for the structure > of an INFO BASIC program? I have never seen the language described in BNF. Perhaps one reason is that is is ambiguous in a few places. The most obvious example is A = B<C> + 1 where the < > could be field expression delimiters or could be relational operators. Out of interest, why are you looking for a BNF definition? Martin Phillips Ladybridge Systems Ltd 17b Coldstream Lane, Hardingstone, Northampton, NN4 6DB +44-(0)1604-709200 _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
