1 2grammar t058rewriteAST41; 3options {language=JavaScript;output=AST;} 4tokens {BLOCK;} 5a : atom -> ^(atom atom) ; // NOT CYCLE! (dup atom) 6atom : INT ; 7ID : 'a'..'z'+ ; 8INT : '0'..'9'+; 9WS : (' '|'\n') {$channel=HIDDEN;} ;