David-Sarah Hopwood wrote: [...] > The default of not enabling backtracking is the right default, since the > ambiguity warnings are more conservative and more likely to help in > finding grammar errors. (To me this is more important than the loss > of efficiency that can result from backtracking.) In this case, the > left-factoring suggested by Jim Idle is a better solution than enabling > backtracking, even though the latter would handle this particular > grammar automatically...
... if the expr rule were changed to (expr1 | expr2) EOF, which is needed anyway to reflect the intent of a finite language. -- David-Sarah Hopwood ⚥ http://davidsarah.livejournal.com 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 -~----------~----~----~----~------~----~------~--~---
