Added support for URL host from Routing Component

src/Silex/Route.php

@@ -86,6 +86,20 @@ class Route extends BaseRoute
         return $this;
     }
 
+    /**
+     * Sets the requirement of host on this Route
+     *
+     * @param string $host The host for which this route should be enabled
+     *
+     * @return Route $this The current Route instance
+     */
+    public function host($host)
+    {
+        $this->setHost($host);
+
+        return $this;
+    }
+
     /**
      * Sets the requirement of HTTP (no HTTPS) on this Route.
      *

tests/Silex/Tests/RouterTest.php

@@ -179,6 +179,14 @@ class RouterTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals('/foo/', $response->getTargetUrl());
     }
 
+    public function testHostSpecification()
+    {
+        $route = new \Silex\Route();
+
+        $this->assertSame($route, $route->host('{locale}.example.com'));
+        $this->assertEquals('{locale}.example.com', $route->getHost());
+    }
+
     public function testRequireHttpRedirect()
     {
         $app = new Application();