class Browser::QQ

def full_version
  ua[%r{(?:Mobile MQQBrowser)/([\d.]+)}i, 1] ||
    ua[%r{(?:QQBrowserLite)/([\d.]+)}i, 1] ||
    ua[%r{(?:QQBrowser)/([\d.]+)}i, 1] ||
    ua[%r{(?:QQ)/([\d.]+)}i, 1] ||
    "0.0"
end