Codeigniter Routes regex - using dashes in controller/method names

Question

I\'m looking for a one line route to route dashed controller and method names to the actual underscored controller and method names.

For example the URL

Answer 1

Overriding the Router class is a nice approach, there is also a way of replacing - with _ by registering a "pre-system" hook.

First create the hook by adding these lines to your ‘config/hooks.php’ file:

$hook['pre_system'] = array(
    'class'    => '',
    'function' => 'prettyurls',
    'filename' => 'myhooks.php',
    'filepath' => 'hooks',
    'params'   => array()
); 

Now create a ‘myhooks.php’ file within the ‘application/hooks’ folder and add this function (don’t forget to open a PHP tag if this is the first hook):

You will probably need to edit your ‘config/config.php’ file to enable hooks (around line 91 for me):

$config['enable_hooks'] = TRUE; 

This answer is ripped from http://codeigniter.com/forums/viewthread/124396/#644012