1 # 2 # Tests a[ab]* 3 # 4 t 0 1 a 5 t 1 1 a 6 t 1 1 b 7 f 1 8 ------- 9 a 10 => 11 a 12 a 13 => 14 a 15 b 16 a 17 b 18 a 19 b 20 => 21 b 22 => 23 a 24 c 25 => 26 => 27