Hi Gavin, When I looked at your grammar it seemed correct to me but I tested it in ANTLRWorks and I can't see why it doesn't work.
If you test with input "Hello ${name} it gives me a lexer error: line 1:7 mismatched character '{' expecting set null I've looked at generated code and I see that when the lexer enters at mTEXT rule it only can exit (correctly) if it reaches the end of input. And I don't understand why. I suppose that is something with the new ANTLR3 lexers, or that I've to refresh some parsing theory, but I'm absolutely lost. A lot of thanks in advance, On Sun, Oct 11, 2009 at 10:48 PM, Joan Pujol <j...@joanpujol.cat> wrote: > Thanks Gavin and Graham, > > Gavin: > But when you say that you can further evaluate at parser level what do you > mean? > What do you say is use another lexer+parser to parse the STRINGs > tokens, doesn't you? Because the expressions will be a lot more > complex to be parsed without prior lexer separation of tokens. > > Graham: > You're right, I've corrected what you say changing the AND but what I > don't understand is why if I put an input of for example: > 'Hello? --> It works. > But If I put "Hello ${" it enters in infinite recursion saying: > line 1:5 rule OTHER failed predicate: {input.LA(1)!='$' || > input.LA(2)!='{'}? infinite times. > > > Cheers, > > -- > Joan Jesús Pujol Espinar > http://www.joanpujol.cat > http://lujop.deviantart.com > -- Joan Jesús Pujol Espinar http://www.joanpujol.cat http://lujop.deviantart.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 il-antlr-interest@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 -~----------~----~----~----~------~----~------~--~---