Start
  re_0
    re$1_0
      re$0_0
        'a'@(1:1-1:2)
      re$2_1
        re$0_0
          'a'@(1:2-1:3)
        '*'@(1:3-1:4)
    '|'@(1:5-1:6)
    re$2_1
      re$0_1
        '('@(2:1-2:2)
        re$1_0
          re$0_0
            'a'@(2:2-2:3)
          re$0_0
            'a'@(2:3-2:4)
        ')'@(2:4-2:5)
      '*'@(2:5-2:6)
  Eof@(3:1-3:1)=''