[empathy] Correct grouping in the hostname regexp

[Sjoerd Simons <sjoerds src gnome org>]

commit fcd22fbdd8d4545b04e15f3bcb6e4384e7d0ded6
Author: Sjoerd Simons <sjoerd simons collabora co uk>
Date:   Wed Aug 31 15:14:15 2011 +0100

    Correct grouping in the hostname regexp
    
    Correctly group our subregexp otherwise hostnames like the following
    won't be recognized due to the way things expand:
      a.com
      example.c-om

 libempathy-gtk/empathy-account-widget.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/libempathy-gtk/empathy-account-widget.c b/libempathy-gtk/empathy-account-widget.c
index e148ada..8df9174 100644
--- a/libempathy-gtk/empathy-account-widget.c
+++ b/libempathy-gtk/empathy-account-widget.c
@@ -154,9 +154,10 @@ static guint signals[LAST_SIGNAL] = { 0 };
 #define ALPHADIGITDASHS   "(["ALPHADIGITDASH"]*)"
 
 #define HOSTNUMBER        "("DIGITS"\\."DIGITS"\\."DIGITS"\\."DIGITS")"
-#define TOPLABEL          ALPHAS"|(["ALPHA"]" ALPHADIGITDASHS "["ALPHADIGIT"])"
-#define DOMAINLABEL       ALPHADIGITS"|(["ALPHADIGIT"]" ALPHADIGITDASHS \
-                                       "["ALPHADIGIT"])"
+#define TOPLABEL          "("ALPHAS \
+                            "| (["ALPHA"]"ALPHADIGITDASHS "["ALPHADIGIT"]))"
+#define DOMAINLABEL       "("ALPHADIGITS"|(["ALPHADIGIT"]" ALPHADIGITDASHS \
+                                       "["ALPHADIGIT"]))"
 #define HOSTNAME          "((" DOMAINLABEL "\\.)+" TOPLABEL ")"
 /* Based on http://www.ietf.org/rfc/rfc1738.txt (section 5) */
 #define HOST              "("HOSTNAME "|" HOSTNUMBER")"