[antlr-interest] Fwd: Re: another nondeterminism question

[Adrian Sandor]

here are 2 solutions that work
thanks Lubos!

--- lubos.vnuk at rzb.at wrote:
> 
> Hi Adrian,
> 
> sorry not to reply directly to the ANTLR group but
> our proxy won't let me
> log on.
> 
> 
> I have 2 solutions for you:
> 
> class Test extends Lexer;
> options {k = 2;}
> 
> S: 'a' ('a' | {LA(2)=='b'}? "bb")*
> | "bb" ('a' | {LA(2)=='b'}? "bb")*
> | 'b' {$setType(B);}
> ;
> 
> 
> 
> class Test extends Lexer;
> options {k = 2;}
> 
> S: 'a' ('a' | {LA(2)=='b'}? "bb")*;
> S2: "bb" ('a' | {LA(2)=='b'}? "bb")* {$setType(S);};
> B: 'b';
> 
> 
> You may forward this to the newsgroup if it works,
> Lubos.


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