Ahh, the DFA for the 'r' rule. That makes sense now. Interesting example.
Thanks Terence and Sam! Regards, Alan On Feb 2, 2011, at 11:17 AM, Terence Parr wrote: > try for rule 'r' though ;) > Ter > On Feb 2, 2011, at 9:07 AM, Alan D. Cabrera wrote: > >> I was reading about the following grammar on page 287 of the PDF document >> >> grammar t; >> s : X r A B >> | Y r B >> ; >> >> r : A >> | >> ; >> >> I don't see where the problem is since the alternatives in s begin with two >> different tokens X and Y. I think that since these two tokens are different >> I can easily construct a DFA that would unambiguously parse a stream of >> tokens. >> >> I sense that this example was supposed to bring out a finer point about how >> ANTLR generates parsers but I'm afraid that it is being lost on me. >> >> >> Regards, >> Alan > > List: http://www.antlr.org/mailman/listinfo/antlr-interest > Unsubscribe: > http://www.antlr.org/mailman/options/antlr-interest/your-email-address List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to il-antlr-inter...@googlegroups.com. To unsubscribe from this group, send email to il-antlr-interest+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.