docs: function separateAlphabetNumber(string) {
    let result = [string];
    let numbers = getAllMatchAndRange(kNumberRegexG, string);
    if (numbers.length !== 0) {
      result = [];
      pushNotEmpty(result, string.substring(0, numbers[0][1]));
      for (let i = 0; i < numbers.length - 1; ++i) {
        result.push(numbers[i][0]); //1230と123を区別するためにこの時点では数値にしない
        pushNotEmpty(result, string.substring(numbers[i][2], numbers[i + 1][1]));
      }
      result.push(numbers[numbers.length - 1][0]);
      pushNotEmpty(result, string.substring(numbers[numbers.length - 1][2]));
    }
    return result;
  }