URL Forwarding and CodeIgniter

[eluser]Eric Cope[/eluser]
It looks like some regular expressions and back references will do it. Additionally, I should route my classes above the regular expressions so they don't get incorrectly translated.

Code:

$route['^([a-zA-Z0-9\_\-]+)$'] = "class_to_process_route/$1";

That should match only letters, numbers. underscores and dashes. Can someone double check me?