1 2grammar t058rewriteAST54; 3options {language=JavaScript;output=AST;} 4tokens {VAR;} 5a : first=ID others+=ID* -> $first VAR $others+ ; 6op : '+'|'-' ; 7ID : 'a'..'z'+ ; 8INT : '0'..'9'+; 9WS : (' '|'\n') {$channel=HIDDEN;} ;