/**
  * Parse bad characters
  *
  * Pre-offset: at bad character
  * Post-offset: at first non-bad character
  *
  * @param  StringReader $input input
  * @return array
  */
 protected function parseBad(StringReader $input)
 {
     $line = $input->line;
     $buffer = $input->eatType(StringReader::CHAR_OTHER);
     return $this->token(self::T_BAD, $line, $buffer);
 }