code: def pformat_tokens(self, tokens):
          
          result = []
          for token_value in self.iter_token_values(tokens):
              char = self.token2ascii(token_value)
              if token_value > 0xff:
                  result.append("\t$%04x -> %s" % (token_value, repr(char)))
              else:
                  result.append("\t  $%02x -> %s" % (token_value, repr(char)))
  
          return result
docs: format a tokenized BASIC program line. Useful for debugging.
          returns a list of formated string lines.