[antlr-interest] No case sesitive option in ANTLR 3 ??

[aljer ammar]

Hi everybody,
I wrote my grammar in ANTLR. I was supprised to find that there is no 
SensitiveCase Options as in version 2.7 . I tried to creat 2 alternative 
for each token in the lexer like this :

ATOKEN : ATOKEN
                  |  atoken
                  ;

this gave me an error of memory size.

hve u any soluation?