<route name="shop" pattern="^/(name:[a-zA-Z0-9_]+)" module="Shop" action="Index">
	<route name=".category" pattern="^/category" action="Category">
		<route name=".id" pattern="^/(id:[0-9]+)$" action="CategoryId" />
	</route>
</route>

A request for /FishyJoes/category/is-this-a-valid-url fallbacks on /FishyJoes/category, however a 404 is wanted behaviour