AngularJS regex in route to restrict some parameters to be int type

Question

I've been looking for a lot of references like:

AngularJS regex route for similar url to load different controller and view

AngularJS - Route - How to match star (*) as a path

These are questions 1-2 years ago. I'm using AngularJS v1.2.16 and I'd want to know if AngularJS with my version or upper already supports regex pattern in path param.

I mean. I have these two routes

$routeProvider
.when("/:color/:number", {
  templateUrl: "/view/example/index.html",
  controller: "ColorController"
})
.when("/:artist/:name", {
  templateUrl: "/view/example/index.html",
  controller: "ColorController"
});

Then, I'd like to enter a pattern to restrict a :number to be an integer number but the controller and view are the same in both cases, i.e.

$routeProvider
.when("/:color/:[0-9]", {
  templateUrl: "/view/example/index.html",
  controller: "ColorController"
});
.when("/:artist/:name", {
  templateUrl: "/view/example/index.html",
  controller: "ColorController"
});

Or something like that. Is it already possible with AngularJS $routeProvider?

I know the AngularUI Router but I'd wish to use $routeProvider if possible

Any ideas?