// Change all article/x requests to node/x
  if (preg_match('|^article(/.*)|', $path, $matches)) {
    $result = 'node'. $matches[1];
  }
  // Redirect a path called 'e' to the user's profile edit page.
  if ($path == 'e') {
    $result = 'user/'. $user->uid .'/edit';
  }
}
function custom_url_rewrite_outbound(&$path, &$options, $original_path) {
  global $user;

  // Change all 'node' to 'article'.
  if (preg_match('|^node(/.*)|', $path, $matches)) {
    $path = 'article'. $matches[1];
  }
  // Create a path called 'e' which lands the user on her profile edit page.
  if ($path == 'user/'. $user->uid .'/edit') {
    $path = 'e';
  }

}