Create routes with multiple parameters in Codeigniter

Question

I have a project developed in Codeigniter and I’m setting up some routes to get some nice Urls, but I found a problem.

In a given route, I don’t know how many parameters it will come with, you can come with 1 parameter or even 4 parameters. In the file routes.php, how I would set to recognize these parameters?

In this example it works, but I believe that it is not the correct one:

$route['vendas/(:any)'] = '$1';
$route['vendas/(:any)/(:any)'] = '$1/$2';
$route['vendas/(:any)/(:any)/(:any)'] = '$1/$2/$3';
$route['vendas/(:any)/(:any)/(:any)/(:any)'] = '$1/$2/$3/$4';