Router improvements

- Make dashes-to-underscores URI segment replacement configurable via ['translate_uri_dashes'].
- Make _set_routing() protected and move the call to the class constructor.
- Remove redudant calls to set_class() and set_method().
- Clean-up/optimize the routes loading procedure.

(fixes issue #2503)

1 files changed, 13 insertions, 1 deletions

diff --git a/user_guide_src/source/general/routing.rst b/user_guide_src/source/general/routing.rst
index 123257fc8..5520f59fe 100644
--- a/user_guide_src/source/general/routing.rst
+++ b/user_guide_src/source/general/routing.rst
@@ -145,7 +145,7 @@ routing rules to process the back-references. Example::
 Reserved Routes
 ===============
 
-There are two reserved routes::
+There are three reserved routes::
 
 	$route['default_controller'] = 'welcome';
 
@@ -165,5 +165,17 @@ error page. It won't affect to the ``show_404()`` function, which will
 continue loading the default *error_404.php* file at
 *application/views/errors/error_404.php*.
 
+
+::
+
+	$route['translate_uri_dashes'] = FALSE;
+
+As evident by the boolean value, this is not exactly a route. This
+option enables you to automatically replace dashes ('-') with
+underscores in the controller and method URI segments, thus saving you
+additional route entries if you need to do that.
+This is required, because the dash isn't a valid class or method name
+character and would cause a fatal error if you try to use it.
+
 .. important:: The reserved routes must come before any wildcard or
 	regular expression routes.
\ No newline at end of file