utf8_encode optimization; thanks kirilloid!

brettz9 · brettz9 · commit 1abf9c9b2997 · 2012-02-09T06:14:13.000-07:00
diff --git a/functions/xml/utf8_encode.js b/functions/xml/utf8_encode.js
@@ -1,50 +1,51 @@
-function utf8_encode (argString) {
-    // http://kevin.vanzonneveld.net
-    // +   original by: Webtoolkit.info (http://www.webtoolkit.info/)
-    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
-    // +   improved by: sowberry
-    // +    tweaked by: Jack
-    // +   bugfixed by: Onno Marsman
-    // +   improved by: Yves Sucaet
-    // +   bugfixed by: Onno Marsman
-    // +   bugfixed by: Ulrich
-    // +   bugfixed by: Rafal Kukawski
-    // *     example 1: utf8_encode('Kevin van Zonneveld');
-    // *     returns 1: 'Kevin van Zonneveld'
-
-    if (argString === null || typeof argString === "undefined") {
-        return "";
-    }
-
-    var string = (argString + ''); // .replace(/\r\n/g, "\n").replace(/\r/g, "\n");
-    var utftext = "",
-        start, end, stringl = 0;
-
-    start = end = 0;
-    stringl = string.length;
-    for (var n = 0; n < stringl; n++) {
-        var c1 = string.charCodeAt(n);
-        var enc = null;
-
-        if (c1 < 128) {
-            end++;
-        } else if (c1 > 127 && c1 < 2048) {
-            enc = String.fromCharCode((c1 >> 6) | 192) + String.fromCharCode((c1 & 63) | 128);
-        } else {
-            enc = String.fromCharCode((c1 >> 12) | 224) + String.fromCharCode(((c1 >> 6) & 63) | 128) + String.fromCharCode((c1 & 63) | 128);
-        }
-        if (enc !== null) {
-            if (end > start) {
-                utftext += string.slice(start, end);
-            }
-            utftext += enc;
-            start = end = n + 1;
-        }
-    }
-
-    if (end > start) {
-        utftext += string.slice(start, stringl);
-    }
-
-    return utftext;
-}
+function utf8_encode (argString) {
+    // http://kevin.vanzonneveld.net
+    // +   original by: Webtoolkit.info (http://www.webtoolkit.info/)
+    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
+    // +   improved by: sowberry
+    // +    tweaked by: Jack
+    // +   bugfixed by: Onno Marsman
+    // +   improved by: Yves Sucaet
+    // +   bugfixed by: Onno Marsman
+    // +   bugfixed by: Ulrich
+    // +   bugfixed by: Rafal Kukawski
+    // +   improved by: kirilloid
+    // *     example 1: utf8_encode('Kevin van Zonneveld');
+    // *     returns 1: 'Kevin van Zonneveld'
+
+    if (argString === null || typeof argString === "undefined") {
+        return "";
+    }
+
+    var string = (argString + ''); // .replace(/\r\n/g, "\n").replace(/\r/g, "\n");
+    var utftext = '',
+        start, end, stringl = 0;
+
+    start = end = 0;
+    stringl = string.length;
+    for (var n = 0; n < stringl; n++) {
+        var c1 = string.charCodeAt(n);
+        var enc = null;
+
+        if (c1 < 128) {
+            end++;
+        } else if (c1 > 127 && c1 < 2048) {
+            enc = String.fromCharCode((c1 >> 6) | 192, (c1 & 63) | 128);
+        } else {
+            enc = String.fromCharCode((c1 >> 12) | 224, ((c1 >> 6) & 63) | 128), (c1 & 63) | 128);
+        }
+        if (enc !== null) {
+            if (end > start) {
+                utftext += string.slice(start, end);
+            }
+            utftext += enc;
+            start = end = n + 1;
+        }
+    }
+
+    if (end > start) {
+        utftext += string.slice(start, stringl);
+    }
+
+    return utftext;
+}
