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Commiting my UUID Library to GitHub

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  1. +203 −0 LICENSE.txt
  2. 0  README.md
  3. +184 −0 lib/uuid.js
  4. +19 −0 package.json
203 LICENSE.txt
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0  README.md
No changes.
184 lib/uuid.js
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+/**
+ UUID-js : A js library to generate and parse UUIDs,TimeUUIDs and generate TimeUUID based on Data for range selections
+ http://www.ietf.org/rfc/rfc4122.txt
+ **/
+
+UUID = function() { }
+
+UUID.maxFromBits = function( bits )
+{
+ return Math.pow(2,bits);
+}
+
+UUID.limitUI04 = UUID.maxFromBits( 4 );
+UUID.limitUI06 = UUID.maxFromBits( 6 );
+UUID.limitUI08 = UUID.maxFromBits( 8 );
+UUID.limitUI12 = UUID.maxFromBits( 12 );
+UUID.limitUI14 = UUID.maxFromBits( 14 );
+UUID.limitUI16 = UUID.maxFromBits( 16 );
+UUID.limitUI32 = UUID.maxFromBits( 32 );
+
+UUID.randomUI04 = function() { return Math.round(Math.random() * UUID.limitUI04); }
+UUID.randomUI06 = function() { return Math.round(Math.random() * UUID.limitUI06); }
+UUID.randomUI08 = function() { return Math.round(Math.random() * UUID.limitUI08); }
+UUID.randomUI12 = function() { return Math.round(Math.random() * UUID.limitUI12); }
+UUID.randomUI14 = function() { return Math.round(Math.random() * UUID.limitUI14); }
+UUID.randomUI16 = function() { return Math.round(Math.random() * UUID.limitUI16); }
+UUID.randomUI32 = function() { return Math.round(Math.random() * UUID.limitUI32); }
+UUID.randomUI40 = function() { return (0 | Math.random() * (1 << 30)) + (0 | Math.random() * (1 << 40 - 30)) * (1 << 30); }
+UUID.randomUI48 = function() { return (0 | Math.random() * (1 << 30)) + (0 | Math.random() * (1 << 48 - 30)) * (1 << 30); }
+
+UUID.paddedString = function( string, length, z )
+{
+ string = new String(string);
+ z = (!z)?"0":z;
+ var i = length - string.length;
+ for (; i > 0; i >>>= 1, z += z) { if (i & 1) { string = z + string; } }
+ return string;
+}
+
+UUID.prototype.fromParts = function( timeLow, timeMid, timeHiAndVersion, clockSeqHiAndReserved, clockSeqLow, node )
+{
+ this.version = (timeHiAndVersion >> 12) & 0xF;
+ this.hex = UUID.paddedString( timeLow.toString(16), 8 )
+ + '-'
+ + UUID.paddedString( timeMid.toString(16), 4 )
+ + '-'
+ + UUID.paddedString( timeHiAndVersion.toString(16), 4 )
+ + '-'
+ + UUID.paddedString( clockSeqHiAndReserved.toString(16), 2 )
+ + UUID.paddedString( clockSeqLow.toString(16), 2 )
+ + '-'
+ + UUID.paddedString( node.toString(16), 12 );
+ return this;
+}
+
+UUID.prototype.toString = function() { return this.hex; };
+UUID.prototype.toURN = function() { return 'urn:uuid:' + this.hex; };
+
+UUID.prototype.toBytes = function()
+{
+ var parts = this.hex.split('-');
+ var ints = [];
+ var intPos = 0;
+ for (var i = 0; i < parts.length; i++) {
+ for (var j = 0; j < parts[i].length; j+=2) {
+ ints[intPos++] = parseInt(parts[i].substr(j, 2), 16);
+ }
+ }
+ return ints;
+}
+
+UUID.prototype.equals = function(uuid)
+{
+ if (!(uuid instanceof UUID)) { return false; }
+ if (this.hex !== uuid.hex) return false;
+ return true;
+};
+
+UUID.generateUUID = function()
+{
+ return new UUID().fromParts(
+ UUID.randomUI32(),
+ UUID.randomUI16(),
+ 0x4000 | UUID.randomUI12(),
+ 0x80 | UUID.randomUI06(),
+ UUID.randomUI08(),
+ UUID.randomUI48()
+ );
+}
+
+UUID.getTimeFieldValues = function(time)
+{
+ var ts = time - Date.UTC(1582, 9, 15);
+ var hm = ((ts / 0x100000000) * 10000) & 0xFFFFFFF;
+ return { low: ((ts & 0xFFFFFFF) * 10000) % 0x100000000,
+ mid: hm & 0xFFFF, hi: hm >>> 16, timestamp: ts };
+}
+
+UUID.generateTimeUUID = function()
+{
+ var now = new Date().getTime();
+ var sequence = UUID.randomUI14();
+ var node = (UUID.randomUI08() | 1) * 0x10000000000 + UUID.randomUI40();
+ var tick = UUID.randomUI04();
+ var timestamp = 0;
+ var timestampRatio = 1/4;
+
+ if (now != timestamp)
+ {
+ if (now < timestamp) { sequence++; }
+ timestamp = now;
+ tick = UUID.randomUI04();
+ } else if (Math.random() < timestampRatio && tick < 9984) { tick += 1 + UUID.randomUI04();
+ } else { sequence++; }
+
+ var tf = UUID.getTimeFieldValues(timestamp);
+ var tl = tf.low + tick;
+ var thav = (tf.hi & 0xFFF) | 0x1000;
+
+ sequence &= 0x3FFF;
+ var cshar = (sequence >>> 8) | 0x80;
+ var csl = sequence & 0xFF;
+
+ return new UUID().fromParts(tl, tf.mid, thav, cshar, csl, node);
+}
+
+UUID.fromTime = function( time, last )
+{
+ last = (!last)?false:last;
+ var tf = UUID.getTimeFieldValues( time );
+ var tl = tf.low;
+ var thav = (tf.hi & 0xFFF) | 0x1000; // set version '0001'
+ if (last == false) return new UUID().fromParts(tl,tf.mid,thav, 0, 0, 0);
+ else return new UUID().fromParts(tl,tf.mid,thav, 0x80 | UUID.limitUI06, UUID.limitUI08, UUID.limitUI48 );
+}
+
+UUID.firstUUIDForTime = function(time) { return UUID.fromTime(time, false); }
+UUID.lastUUIDForTime = function(time) { return UUID.fromTime(time, true); }
+
+UUID.fromURN = function(strId)
+{
+ var r, p = /^(?:urn:uuid:|\{)?([0-9a-f]{8})-([0-9a-f]{4})-([0-9a-f]{4})-([0-9a-f]{2})([0-9a-f]{2})-([0-9a-f]{12})(?:\})?$/i;
+ if (r = p.exec(strId)) {
+ return new UUID().fromParts(parseInt(r[1], 16), parseInt(r[2], 16),
+ parseInt(r[3], 16), parseInt(r[4], 16),
+ parseInt(r[5], 16), parseInt(r[6], 16));
+ }
+ return null;
+};
+
+UUID.fromBytes = function(ints)
+{
+ if (ints.length < 5) return null;
+ var str = '';
+ var pos = 0;
+ var parts = [4, 2, 2, 2, 6];
+ for (var i = 0; i < parts.length; i++) {
+ for (var j = 0; j < parts[i]; j++) {
+ var octet = ints[pos++].toString(16);
+ if (octet.length == 1) {
+ octet = '0' + octet;
+ }
+ str += octet;
+ }
+ if (parts[i] !== 6) {
+ str += '-';
+ }
+ }
+ return UUID.fromURN( str );
+}
+
+UUID.fromBinary = function(binary)
+{
+ var ints = [];
+ for (var i = 0; i < binary.length; i++) {
+ ints[i] = binary.charCodeAt(i);
+ if (ints[i] > 255 || ints[i] < 0) {
+ throw new Error('Unexpected byte in binary data.');
+ }
+ }
+ return UUID.fromBytes( ints );
+}
+
+exports.UUID = UUID;
19 package.json
@@ -0,0 +1,19 @@
+{
+ "name" : "uuid-js",
+ "description" : "A js library to generate and parse UUIDs,TimeUUIDs and generate TimeUUID based on Data for range selections",
+ "version" : "0.5.0",
+ "author" : "Patrick Negri <patrick@iugu.com.br>",
+ "homepage": "http://github.com/pnegri/uuid-js",
+ "contributors" : ["Gary Dusbabek <gdusbabek@gmail.com>"],
+ "main" : "./lib/uuid.js",
+ "directories": {
+ "lib":"./lib"
+ },
+ "dependencies" : {
+ },
+ "repository" : {
+ "type":"git",
+ "url":"git://github.com/pnegri/uuid-js.git"
+ },
+ "engines" : { "node" : ">= 0.4.0 < 1.0.0" }
+}
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