/** 
    * Gets a request object for the current request. Parses PATH_INFO as necessary.
    * @return Request
    */
   public static function get() {
      static $req;
      if (!isset($req) || C5_ENVIRONMENT_ONLY) {
         $path = false;
         if (defined('SERVER_PATH_VARIABLE')) {
            $path = Request::parsePathFromRequest(SERVER_PATH_VARIABLE);
         }/*
         if (!$path) {
            $path = Request::parsePathFromRequest('ORIG_PATH_INFO');
         }*/
         if (!$path) {
            $path = Request::parsePathFromRequest('REDIRECT_URL');
         }
         if (!$path) {
            $path = Request::parsePathFromRequest('PATH_INFO');
         }/*
         if (!$path) {
            $path = Request::parsePathFromRequest('REQUEST_URI');
         }*/
         if (!$path) {
            $path = Request::parsePathFromRequest('SCRIPT_NAME');
         }
 
         $req = new Request($path);
      }
      return $req;
   }