- var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",
- a256 = '',
- r64 = [256],
- r256 = [256],
- i = 0;
- var UTF8 = {
- /**
- * Encode multi-byte Unicode string into utf-8 multiple single-byte characters
- * (BMP / basic multilingual plane only)
- *
- * Chars in range U+0080 - U+07FF are encoded in 2 chars, U+0800 - U+FFFF in 3 chars
- *
- * @param {String} strUni Unicode string to be encoded as UTF-8
- * @returns {String} encoded string
- */
- encode: function (strUni) {
- // use regular expressions & String.replace callback function for better efficiency
- // than procedural approaches
- var strUtf = strUni.replace(/[\u0080-\u07ff]/g, // U+0080 - U+07FF => 2 bytes 110yyyyy, 10zzzzzz
- function (c) {
- var cc = c.charCodeAt(0);
- return String.fromCharCode(0xc0 | cc >> 6, 0x80 | cc & 0x3f);
- })
- .replace(/[\u0800-\uffff]/g, // U+0800 - U+FFFF => 3 bytes 1110xxxx, 10yyyyyy, 10zzzzzz
- function (c) {
- var cc = c.charCodeAt(0);
- return String.fromCharCode(0xe0 | cc >> 12, 0x80 | cc >> 6 & 0x3F, 0x80 | cc & 0x3f);
- });
- return strUtf;
- },
- /**
- * Decode utf-8 encoded string back into multi-byte Unicode characters
- *
- * @param {String} strUtf UTF-8 string to be decoded back to Unicode
- * @returns {String} decoded string
- */
- decode: function (strUtf) {
- // note: decode 3-byte chars first as decoded 2-byte strings could appear to be 3-byte char!
- var strUni = strUtf.replace(/[\u00e0-\u00ef][\u0080-\u00bf][\u0080-\u00bf]/g, // 3-byte chars
- function (c) { // (note parentheses for precence)
- var cc = ((c.charCodeAt(0) & 0x0f) << 12) | ((c.charCodeAt(1) & 0x3f) << 6) | (c.charCodeAt(2) & 0x3f);
- return String.fromCharCode(cc);
- })
- .replace(/[\u00c0-\u00df][\u0080-\u00bf]/g, // 2-byte chars
- function (c) { // (note parentheses for precence)
- var cc = (c.charCodeAt(0) & 0x1f) << 6 | c.charCodeAt(1) & 0x3f;
- return String.fromCharCode(cc);
- });
- return strUni;
- }
- };
- while (i < 256) {
- var c = String.fromCharCode(i);
- a256 += c;
- r256[i] = i;
- r64[i] = b64.indexOf(c);
- ++i;
- }
- function code(s, discard, alpha, beta, w1, w2) {
- s = String(s);
- var buffer = 0,
- i = 0,
- length = s.length,
- result = '',
- bitsInBuffer = 0;
- while (i < length) {
- var c = s.charCodeAt(i);
- c = c < 256 ? alpha[c] : -1;
- buffer = (buffer << w1) + c;
- bitsInBuffer += w1;
- while (bitsInBuffer >= w2) {
- bitsInBuffer -= w2;
- var tmp = buffer >> bitsInBuffer;
- result += beta.charAt(tmp);
- buffer ^= tmp << bitsInBuffer;
- }
- ++i;
- }
- if (!discard && bitsInBuffer > 0) result += beta.charAt(buffer << (w2 - bitsInBuffer));
- return result;
- }
-
- var Plugin = $.base64 = function (dir, input, encode) {
- return input ? Plugin[dir](input, encode) : dir ? null : this;
- };
- Plugin.btoa = Plugin.encode = function (plain, utf8encode) {
- plain = Plugin.raw === false || Plugin.utf8encode || utf8encode ? UTF8.encode(plain) : plain;
- plain = code(plain, false, r256, b64, 8, 6);
- return plain + '===='.slice((plain.length % 4) || 4);
- };
- Plugin.atob = Plugin.decode = function (coded, utf8decode) {
- coded = String(coded).split('=');
- var i = coded.length;
- do {
- --i;
- coded[i] = code(coded[i], true, r64, a256, 6, 8);
- } while (i > 0);
- coded = coded.join('');
- return Plugin.raw === false || Plugin.utf8decode || utf8decode ? UTF8.decode(coded) : coded;
- };
-}(jQuery));
-
-(function ($) {