来探 state tree

dfa states 0.State {
  is_match: false
  {"next state: 6": [230..230]}
}
1.State {
  is_match: false
  {"next state: 29": [230..230]}
}
2.State {
  is_match: true
  {"next state: 21": [230..230]}
}
3.State {
  is_match: false
  {"next state: 4": [157..157]}
}
4.State {
  is_match: false
  {"next state: 2": [165..165]}
}
5.State {
  is_match: true
  {"next state: 12": [230..230]}
}
6.State {
  is_match: false
  {"next state: 7": [142..142]}
}
7.State {
  is_match: false
  {"next state: 5": [162..162]}
}
8.State {
  is_match: false
  {"next state: 15": [230..230]}
}
9.State {
  is_match: false
  {"next state: 10": [157..157]}
}
10.State {
  is_match: false
  {"next state: 8": [165..165]}
}
11.State {
  is_match: true
  {}
}
12.State {
  is_match: false
  {"next state: 13": [142..142]}
}
13.State {
  is_match: false
  {"next state: 11": [162..162]}
}
14.State {
  is_match: true
  {}
}
15.State {
  is_match: false
  {"next state: 16": [142..142]}
}
16.State {
  is_match: false
  {"next state: 14": [162..162]}
}
17.State {
  is_match: true
  {"next state: 25": [230..230]}
}
18.State {
  is_match: false
  {"next state: 19": [157..157]}
}
19.State {
  is_match: false
  {"next state: 17": [165..165]}
}
20.State {
  is_match: true
  {"next state: 23": [230..230]}
}
21.State {
  is_match: false
  {"next state: 22": [142..142]}
}
22.State {
  is_match: false
  {"next state: 20": [162..162]}
}
23.State {
  is_match: false
  {"next state: 24": [142..142]}
}
24.State {
  is_match: false
  {"next state: 14": [162..162]}
}
25.State {
  is_match: false
  {"next state: 26": [142..142]}
}
26.State {
  is_match: false
  {"next state: 14": [162..162]}
}
27.State {
  is_match: false
  {"next state: 28": [157..157]}
}
28.State {
  is_match: false
  {"next state: 8": [165..165]}
}
29.State {
  is_match: false
  {"next state: 30": [142..142]}
}
30.State {
  is_match: false
  {"next state: 11": [162..162]}
}