Please read the wiki articles - your rules conflict and there are simple ways around this :)
Jim > -----Original Message----- > From: antlr-interest-boun...@antlr.org [mailto:antlr-interest- > boun...@antlr.org] On Behalf Of Jiwon Seo > Sent: Sunday, November 13, 2011 9:58 AM > To: Christian > Cc: antlr-interest@antlr.org > Subject: Re: [antlr-interest] Using range operator (INT .. INT) > > I attached a simplified grammar file with the problem. > If you run the interpreter in antlrworks 1.4.3 the following will give > an error > > int n:0..10 > > But the following won't give an error: > > int n:0 .. 10 // white space before and after .. > > > Note that my definition of FLOAT does not conflict with the range > operator: > > FLOAT > : ('0'..'9')+ '.' ('0'..'9')+ EXPONENT? > | ('0'..'9')+ EXPONENT > ; > > > Thanks. > > On Sun, Nov 13, 2011 at 3:09 AM, Christian <chw...@gmx.de> wrote: > > Hello Jiwon, > > > > first, try to write a simple minimal grammar that represents your > > usecase because I do not see anything that explains the behavior you > > described. Maybe there are some other rules that influence the > parsing. > > > > Tell us afterwards. > > > > Regards, > > Christian > > > > Am 13.11.2011 10:31, schrieb Jiwon Seo: > >> I'm trying to add range operator in my language, and I'm having a > >> problem with it. > >> > >> The range operator is defined as following: > >> > >> range: INT '..' INT ; > >> > >> where INT is '0'..'9'+ > >> > >> I do have FLOAT, but it is defined such that it does not have > >> conflict with the range operator: > >> > >> FLOAT: ('0'..'9')+'.'('0'..'9')+ EXPONENT? > >> | ('0'..'9')+ EXPONENT > >> ; > >> > >> The thing is, if I use the range operator with white spaces before & > >> after the dots(such as 10 .. 100), it parses fine But without the > >> white spaces(such as 10..100), it says 'MismatchedTokenException' . > >> > >> Can anyone see why it's acting like that? I do not use dot ('.') in > >> any other places. > >> > >> I'm using antlrworks 1.4.3 for writing grammar and testing it > >> (interpreter & debugger) > >> > >> Thanks. > >> > >> List: http://www.antlr.org/mailman/listinfo/antlr-interest > >> Unsubscribe: > >> http://www.antlr.org/mailman/options/antlr-interest/your-email- > addres > >> s > >> > > > > > > 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.