[antlr-interest] dummy ambiguity question

[lloyd_from_far]

sorry for the dummy question, I'm doing some ANTLR again and fall in 
the traps for young player again :-)

how to express the below grammar simply ?
(the problem is the DOT rule, I want a top level DOT token, but I 
don't manage to lex it !):
---------- myLexer.g --------------
DOT : '.' ;
NUMBER
    :
    	(
            N DOT N
            | DOT N
            | N DOT
        )
        ( 'e' ( PLUS | MINUS )? N )?
    ;
protected N : ( '0' .. '9' ) + ;



 

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