[antlr-interest] (no subject)

[Gerald Rosenberg]

At 04:36 PM 10/31/2008, =?ISO-8859-2?Q?Imre_Andr=E1s?= wrote:

>--- unreachable.g --------------------
>grammar unreachable;
>
>ID  :   ('a'..'z'|'A'..'Z')+ ;

....

>sequence returns [String value]:    'SEQUENCE' WS* '{' WS* 
>e=rightValue {$value=$e.value;} (WS* ',' WS* e=rightValue {$value += 
>$e.value;})* WS* '}' {return $value;};

The unreacheable compile analysis-time error is likely due to the 
fact that ID will consume all alpha characters, leaving no way to 
match the literal 'SEQUENCE'.

BTW, since you are skip()ing whitespace, you can remove the WS* from 
the parser rules with no affect.