using regex for method in csrf_exclude_uris

Is there a way to use regex in the csrf_exclude_uris array so that I only need to define the controller?
I know I can use regex for the end parameter like so:

Code:

controller/method-name/[0-9]+

But what I want is to just exclude the controller and any method like so:

Code:

controller/[a-z\-]+

or

Code:

controller/[a-z\-]+/[0-9]+

Haven't found any examples doing it anywhere and since it is not working, just wondering if anyone knows if it is actually possible, or if you see something wrong with what I am trying.
Thanks in advance.