From 537c39b11ec808ca5c29a50e3367472449a87aa6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=A9my=20Deruss=C3=A9?=
 <jeremy.derusse@sensiolabs.com>
Date: Tue, 22 Jul 2014 23:54:07 +0200
Subject: [PATCH] Optimize assertLocale regexp

---
 src/Symfony/Component/Translation/Translator.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/Translation/Translator.php b/src/Symfony/Component/Translation/Translator.php
index 8e3cda857c0d..d13adc07c6e0 100644
--- a/src/Symfony/Component/Translation/Translator.php
+++ b/src/Symfony/Component/Translation/Translator.php
@@ -308,7 +308,7 @@ protected function computeFallbackLocales($locale)
      */
     private function assertValidLocale($locale)
     {
-        if (0 !== preg_match('/[^a-z0-9@_\\.\\-]+/i', $locale, $match)) {
+        if (1 !== preg_match('/^[a-z0-9@_\\.\\-]*$/i', $locale)) {
             throw new \InvalidArgumentException(sprintf('Invalid locale: %s.', $locale));
         }
     }