Hi I am sorry, but this is another problem related to sequence of integer. I don't understand my error(s), despite severals pass on the wiki page related to this use case.
I want to parse a string with a "sequence" parameter into it, such as "toto-[2 ..3]-toto". Here is a short version of the grammar that works perfectly: --- grammar tryout; options { k=3; } fragment Digit :'0'..'9'; DEC_NUMBER: '1'..'9' Digit*; fragment Letter :'a'..'z'|'A'..'Z'; WS : ('\n'|'\r'|'\t'|' ') {$channel=HIDDEN;}; LEFTY: (Letter|Digit) (Letter|Digit|'-')* '['; RIGHTY: ']' (('-' (Letter|Digit))|Letter|Digit)* ; number :DEC_NUMBER; //HEX_NUMBER, OCT_NUMBER, ... are following but removed for this example. range: LEFTY number '..' number RIGHTY; --- This grammar accepts "toto-[1..3]-toto" or "toto-[1 .. 3]-toto". Now, I want to be able to accept the LEFTY token or the RIGHTY token even if they contains a '.' inside (not at the beginning). So I've modified LEFTY as following: LEFTY: (Letter|Digit) ('.'|Letter|Digit|'-')* '['; Now, ANTLR does no longer accept "toto-[1..3]-toto". It requires at least one space between the first number and the range. I have read the wiki page related to range, integer, and so one. But in my case, I don't see where my grammar is ambiguous as no token can start with a '.' . So it seems there is a concept I don't get. Can anyone try to help me ? Thanks in advance, Fabien. 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.