Gavin Lambert wrote: > At 07:32 14/08/2009, [email protected] wrote: > >I have a simple grammar for quizzes that doesn't work in the > >debugger, although works fine in the interpreter. > [...] > >LETTER : ('a'..'z'|'A'..'Z'); > >INT : '0'..'9'+; > >NEWLINE : '\n' '\r'? {skip();}; > > These rules should be marked as fragments, since you're consuming them > from other lexer rules and not expecting to receive them in the parser. > > The general rule of thumb is that you should never define two > non-fragment lexer rules that can consume the same input, and try to > avoid doing so when they consume the same common left prefix. (Even in > the cases where you can get away with having a common left prefix, it > reduces performance to do so.) > >
Thanks for the tip! I marked the appropriate rules as fragments, however all the issues in the original post still stand. The debugger simply generates a Parse Tree of root -> quiz, while the Interpreter correctly generates the Parse Tree. Is this possibly an issue with ANTLRWorks itself? 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 [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en -~----------~----~----~----~------~----~------~--~---
