+++ /dev/null
-/*!
-Math.uuid.js (v1.4)
-http://www.broofa.com
-mailto:robert@broofa.com
-
-Copyright (c) 2010 Robert Kieffer
-Dual licensed under the MIT and GPL licenses.
-*/
-
-/*
- * Generate a random uuid.
- *
- * USAGE: Math.uuid(length, radix)
- * length - the desired number of characters
- * radix - the number of allowable values for each character.
- *
- * EXAMPLES:
- * // No arguments - returns RFC4122, version 4 ID
- * >>> Math.uuid()
- * "92329D39-6F5C-4520-ABFC-AAB64544E172"
- *
- * // One argument - returns ID of the specified length
- * >>> Math.uuid(15) // 15 character ID (default base=62)
- * "VcydxgltxrVZSTV"
- *
- * // Two arguments - returns ID of the specified length, and radix. (Radix must be <= 62)
- * >>> Math.uuid(8, 2) // 8 character ID (base=2)
- * "01001010"
- * >>> Math.uuid(8, 10) // 8 character ID (base=10)
- * "47473046"
- * >>> Math.uuid(8, 16) // 8 character ID (base=16)
- * "098F4D35"
- */
-(function() {
- // Private array of chars to use
- var CHARS = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('');
-
- Math.uuid = function (len, radix) {
- var chars = CHARS, uuid = [], i;
- radix = radix || chars.length;
-
- if (len) {
- // Compact form
- for (i = 0; i < len; i++) uuid[i] = chars[0 | Math.random()*radix];
- } else {
- // rfc4122, version 4 form
- var r;
-
- // rfc4122 requires these characters
- uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-';
- uuid[14] = '4';
-
- // Fill in random data. At i==19 set the high bits of clock sequence as
- // per rfc4122, sec. 4.1.5
- for (i = 0; i < 36; i++) {
- if (!uuid[i]) {
- r = 0 | Math.random()*16;
- uuid[i] = chars[(i == 19) ? (r & 0x3) | 0x8 : r];
- }
- }
- }
-
- return uuid.join('');
- };
-
- // A more performant, but slightly bulkier, RFC4122v4 solution. We boost performance
- // by minimizing calls to random()
- Math.uuidFast = function() {
- var chars = CHARS, uuid = new Array(36), rnd=0, r;
- for (var i = 0; i < 36; i++) {
- if (i==8 || i==13 || i==18 || i==23) {
- uuid[i] = '-';
- } else if (i==14) {
- uuid[i] = '4';
- } else {
- if (rnd <= 0x02) rnd = 0x2000000 + (Math.random()*0x1000000)|0;
- r = rnd & 0xf;
- rnd = rnd >> 4;
- uuid[i] = chars[(i == 19) ? (r & 0x3) | 0x8 : r];
- }
- }
- return uuid.join('');
- };
-
- // A more compact, but less performant, RFC4122v4 solution:
- Math.uuidCompact = function() {
- return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
- var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);
- return v.toString(16);
- });
- };
-})();