> On Sun, Aug 28, 2011 at 3:20 PM, Jonne Zutt <[email protected]> > wrote: > > > Dear all, > > > > Is it possible with antlr to match a token exactly n times? > > Something like the following: > > > > ACCOUNT : NUMBER{8}; > > >
Hi Jonne, Bart is correct in that matching a exact quantity is not built in to ANTLR, and most likely never will. Exact quantities is a feature of Regular Expressions. If you are willing to work with gated semantic predicates it can be done. >From the grammars page http://www.antlr.org/grammar/list download the Java .class file grammar and take a look at classfile.g; specifically rule for constant_utf8_info. I believe it is a older v 2.x grammar but will put you in the ball park. With this I was able to parse binary files, but eventually took a different route that didn't use ANTLR. If you are going to be doing lots of these types of rules in a single grammar then you should really step back and consider if you want to abuse ANTLR, and instead take a different approach. Good Luck, Eric 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.
