Add Safari-checking function.

diff --git a/src/yuu/core.js b/src/yuu/core.js
index cbeb2a0..1d64e98 100644 (file)
--- a/src/yuu/core.js
+++ b/src/yuu/core.js
@@ -7,6 +7,10 @@
 (function (yuu) {
     "use strict";
 
+    yuu.isSafari = function (ua) {
+        return /^((?!chrome).)*safari/i.test(ua || navigator.userAgent)
+            || navigator.standalone;
+    };
 
     yuu.require = function (m) {
         try { return require(m); }