Add casting to regex matching (#52)

sanic_routing/router.py

@@ -104,13 +104,19 @@ def resolve(
                     allowed_methods=route.methods,
                 )
 
-        # Regex routes evaluate and can extract params directly. They are set
-        # on param_basket["__params__"]
+        # Convert matched values to parameters
         params = param_basket["__params__"]
-        if not params:
-            # If param_basket["__params__"] does not exist, we might have
-            # param_basket["__matches__"], which are indexed based matches
-            # on path segments. They should already be cast types.
+        if route.regex:
+            params.update(
+                {
+                    param.name: param.cast(
+                        param_basket["__params__"][param.name]
+                    )
+                    for param in route.params.values()
+                    if param.cast is not str
+                }
+            )
+        elif param_basket["__matches__"]:
             params = {
                 param.name: param_basket["__matches__"][idx]
                 for idx, param in route.params.items()

tests/test_routing.py

@@ -2,7 +2,6 @@
 from datetime import date
 
 import pytest
-
 from sanic_routing import BaseRouter
 from sanic_routing.exceptions import NoMethod, NotFound, RouteExists
 
@@ -479,7 +478,7 @@ def handler2():
 
     _, handler, params = router.get(f"/api/3/hello_world/{uri}", "GET")
     assert handler() == "handler2"
-    assert params == {"version": "3", "foo": uri}
+    assert params == {"version": 3, "foo": uri}
 
 
 @pytest.mark.parametrize("uri", ("a-random-path", "a/random/path"))