$path = '/{siteSection}/{categoryPath}/';
        $defaults = [
            '_controller' => 'SiteBundle\Controller\Category:index',
        );
        $requirements = array(
            'siteSection' => 'catalog',
            'categoryPath' => '([\d\w-]+\/*?){2,4}'
        ];
        $routes = new RouteCollection();
        $route = new Route($path, $defaults, $requirements);

        // add the new route to the route collection
        $routeName = 'catalog.category_controller';
        $routes->add($routeName, $route);               
        $router = new Router(OneOfLoaders, 'routing.yml');
        $routeInfo = $this->router->match('/catalog/large_and_small_appliances/large_appliances/');