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

Just coming back to this question after upgrading to CodeIgniter 2. Here is a solution which is more robust than the accepted answer because it will survive CodeIgniter core updates.

_repl($class));
    }

    public function set_method($method) 
    {
        parent::set_method($this->_repl($method));
    }

    public function _validate_request($segments)
    {
        if (isset($segments[0]))
            $segments[0] = $this->_repl($segments[0]);
        if (isset($segments[1]))
            $segments[1] = $this->_repl($segments[1]);

        return parent::_validate_request($segments);
    }

    private function _repl($s)
    {
        return str_replace('-', '_', $s);
    }
}

It should be saved as application/core/MY_Router.php. Now, you can have Controller and Method names with underscores in them such as Abc_Def (in file abc_def.php) and refer to them with the URL /abc-def.