[antlr-interest] ambiguity identifier

[Zhiyong Zhang]

Hi,

The identifier is supposed to in be the format of "abc.d6f" or "abc.current.dg47".

I got identifier ambiguity problem with the following lexical grammar, can anybody point some light.


IDSTART : ('a'..'z'|'A'..'Z'|'_')('a'..'z'|'A'..'Z'|'0'..'9'|'_'|':')*;
IDEND : ('a'..'z'|'A'..'Z'|'0'..'9'|'_'|':');

IDENTIFIER options {testLiterals=true;} : (IDSTART)
(DOT) (CURRENT) => (IDSTART)((DOT)(CURRENT)(DOT)(IDEND)+)? | (IDSTART) ((DOT)(IDEND)+)?;

....

CURRENT : "current";
DOT : '.';


	
	
		
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