[antlr-interest] antlr 2.7.6 - nondeterminism question

[Costa Basil]

Hi:

I am working on big grammar with k=3 and I have a spot where antlr returns the nondeterminism warning. Now, I know that the grammar is right but because of the linear approximate lookahead antlr returns this warning. Is there an option to turn it off? Unfortunately it appears on a alternate block with no empty choices so I cannot use the warnWhenFollowAmbig option.

This is my problem simplified. For k = 2 antlr chokes because of the linear approximation

p1 : alt1 | alt2;  
alt1: A B | C D | X Y | U V;
alt2: A V | X D;

This approximate lookahead causes me a lot of frustration. I wish there was a way to turn it off. Every time I make changes and I regenerate the grammar there are obscure warnings popping up from all over the place just because of the way this thing works and it is annoying because I think I got my changes right but antlr says I didn't. Then trying to figure out what's going on is the same as searching a needle in the haystack. 







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