Allow full stops in route parameters

.gitignore

@@ -2,3 +2,4 @@ build
 composer.lock
 docs
 vendor
+.phpunit.result.cache

src/Router.php

@@ -132,6 +132,9 @@ private function createAltoRoutes()
 
         $this->altoRouter = new AltoRouter();
         $this->altoRouter->setBasePath($this->basePath);
+        $this->altoRouter->addMatchTypes([
+             '' => '[^/]++',
+        ]);
         $this->altoRoutesCreated = true;
 
         foreach ($this->routes as $route) {

tests/RouterTest.php

@@ -384,6 +384,23 @@ public function params_are_parsed_and_passed_into_callback_function()
         $this->assertSame(1, $count);
     }
 
+    /** @test */
+    public function params_may_contain_full_stops()
+    {
+        $request = new ServerRequest([], [], '/posts/a.b.c', 'GET');
+        $router = new Router;
+
+        $route = $router->get('/posts/{postId}', function ($params) use (&$count) {
+            $count++;
+
+            $this->assertInstanceOf(RouteParams::class, $params);
+            $this->assertSame('a.b.c', $params->postId);
+        });
+        $router->match($request);
+
+        $this->assertSame(1, $count);
+    }
+
     /** @test */
     public function params_are_parsed_and_passed_into_callback_function_when_surrounded_by_whitespace()
     {