code: def line_tokenizer(self, text):
          
          line_output = []
  
          with open(text, mode='r+', encoding='utf8') as file:
              lines = file.readlines()
              assert isinstance(text, str), 'Incoming argument must be a string.'
          for line in lines:
              # Strip out damage characters
              if not self.damage:  # Add 'xn' -- missing sign or number?
                  line = ''.join(c for c in line if c not in "#[]?!*")
                  re.match(r'^\d*\.|\d\'\.', line)
                  line_output.append(line.rstrip())
          return line_output
docs: From a .txt file, outputs lines as string in list.
  
          input:  21. u2-wa-a-ru at-ta e2-kal2-la-ka _e2_-ka wu-e-er
                  22. ... u2-ul szi-...
                  23. ... x ...
          output:['21. u2-wa-a-ru at-ta e2-kal2-la-ka _e2_-ka wu-e-er',
                  '22. ... u2-ul szi-...',
                  '23. ... x ...',]
  
          :param: .txt file containing untokenized string
          :return: lines as strings in list