Method _setPlatform

/**
 * Match the platform of the browser.
 *
 * This is a pretty simplistic implementation, but it's intended
 * to let us tell what line breaks to send, so it's good enough
 * for its purpose.
 *
 * @return  void
 *
 * @since   1.7.0
 */
protected function _setPlatform()
{
    if (strpos($this->lowerAgent, 'wind') !== false) {
        $this->platform = 'win';
    } elseif (strpos($this->lowerAgent, 'mac') !== false) {
        $this->platform = 'mac';
    } else {
        $this->platform = 'unix';
    }
}