text: #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  
  """
  Transforms a DRF glob into a list of valid requests.
  """
  
  from itertools import product
  from pathlib import Path
  import re
  from typing import Generator, List, Tuple, Union
  
  
  def char_range(char_1: str, char_2: str) -> Generator[str, None, None]:
      """
      Generates a list of characters between two characters, inclusive.
  
      :param char_1: The first character.
      :param char_2: The second character.
      :return: A list of characters.
      """
      for char in range(ord(char_1), ord(char_2)+1):
          yield chr(char)
  
  
  Token = Union[int, str, float]
  
  
  def token_range(first: str, second: str) -> List[Token]:
      """
      Generates a list of tokens between two tokens, inclusive.
  
      :param first: The first token.
      :param second: The second token.
      :return: A list of tokens.
      """
      if first.isnumeric():
          if len(first) > 1:
              pad_length = len(first)
              pad_character = first[0]
  
              return list(map(
                  lambda x: f'{x:{pad_character}{pad_length}d}',
                  range(int(first), int(second) + 1)
              ))
  
          # In case we don't have a padded number
          return list(range(int(first), int(second) + 1))
  
      # Isn't numeric, so we assume it's a character
      return list(char_range(first, second))
  
  
  DRF_list = Union[str, List[str], Tuple[str, ...]]
  
  
  def generate(*drf_globs: DRF_list) -> List[str]:
      """
      Generates a list of valid requests from a DRF glob.
  
      :param drf_globs: A list of DRF globs.
      :return: A list of valid requests.
      """
      results = []
  
      def parse_globs(drf_globs):
          for drf_glob in drf_globs:
              # Parse nested lists and tuples
              if type(drf_glob) in [list, tuple]:
                  parse_globs(drf_glob)
                  break
  
              tokens = re.split(r'[{}]', drf_glob)
              iterations = []
  
              for token in tokens:
                  if '..' in token:
                      first, second = token.split('..')
                      iterations.append(token_range(first, second))
                  elif ',' in token:
                      iterations.append(token.split(','))
                  else:
                      if token != '':
                          iterations.append([token])
  
              for result in product(*iterations):
                  results.append(''.join(map(str, result)))
  
      parse_globs(drf_globs)
  
      return results
  
  
  PathLike = Union[str, Path]
  
  
  def verify(test_file: PathLike, *globs: str) -> List[str]:
      """
      Verifies that a test file contains all the valid requests generated by
      the given DRF globs.
  
      :param test_file: The test file to verify.
      :param globs: A list of DRF globs.
      :return: A list of the unmatched requests.
      """
      test_requests = generate(globs)
      valid_results = []
  
      with open(test_file) as file:
          for line in file.readlines():
              valid_results.append(line.strip())
  
      no_matches = []
  
      for request in valid_results:
          if request not in test_requests:
              no_matches.append(request)
  
      return no_matches
  