From 9b8ebbfad73c0a053a9a5a2384cd9502977bef5a Mon Sep 17 00:00:00 2001
From: Benjamin Thuillier <benjaminthuillier@gmail.com>
Date: Tue, 14 Jan 2014 10:41:38 +0100
Subject: [PATCH] = routing: change internal behaviour of `host` with regex
 function

---
 .../scala/spray/routing/directives/HostDirectives.scala  | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/spray-routing/src/main/scala/spray/routing/directives/HostDirectives.scala b/spray-routing/src/main/scala/spray/routing/directives/HostDirectives.scala
index b5ba955e09..1f485c4926 100644
--- a/spray-routing/src/main/scala/spray/routing/directives/HostDirectives.scala
+++ b/spray-routing/src/main/scala/spray/routing/directives/HostDirectives.scala
@@ -48,11 +48,14 @@ trait HostDirectives {
    */
   def host(regex: Regex): Directive1[String] = {
     def forFunc(regexMatch: String ⇒ Option[String]): Directive1[String] = {
-      hostName.map(regexMatch).flatMap {
-        case Some(matched) ⇒ provide(matched)
-        case None          ⇒ reject
+      hostName.flatMap { name ⇒
+        regexMatch(name) match {
+          case Some(matched) ⇒ provide(matched)
+          case None          ⇒ reject
+        }
       }
     }
+
     regex.groupCount match {
       case 0 ⇒ forFunc(regex.findPrefixOf(_))
       case 1 ⇒ forFunc(regex.findPrefixMatchOf(_).map(_.group(1)))