1grammar t039labels; 2options { 3 language = Python; 4} 5 6a returns [l] 7 : ids+=A ( ',' ids+=(A|B) )* C D w=. ids+=. F EOF 8 { l = ($ids, $w) } 9 ; 10 11A: 'a'..'z'; 12B: '0'..'9'; 13C: a='A' { print $a }; 14D: a='FOOBAR' { print $a }; 15E: 'GNU' a=. { print $a }; 16F: 'BLARZ' a=EOF { print $a }; 17 18WS: ' '+ { $channel = HIDDEN }; 19