[antlr-interest] help with lexical nondeterminism

[Alan Oursland]

Can anyone explain to me why I am getting the following lexical
nondeterminism nondeterminism warning?

ANTLR Parser Generator   Version 2.7.2   1989-2003 jGuru.com
sample.g: warning:lexical nondeterminism between rules EXAMPLE1 and EXAMPLE2
upon
sample.g:     k==1:'.'
sample.g:     k==2:';'
sample.g:     k==3:<end-of-token>

========================================================================
class SampleLexer extends Lexer;
options {
	k=3;
}

EXAMPLE1
	:	"+;"
	|	"..;"
	;
EXAMPLE2
	:	".;"
	;
========================================================================

Thank you.

Alan



 

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