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- var rng = require('./lib/rng');
- var bytesToUuid = require('./lib/bytesToUuid');
- function v3(name, namespaceUuid, buf, offset) {
- var i = buf && offset || 0;
- if (typeof(name) != 'string) {
- throw TypeError('name must be defined')
- }
- if (typeof(namespaceUuid) != 'string) {
- throw TypeError('name must be defined')
- }
- if (typeof(options) == 'string') {
- buf = options == 'binary' ? new Array(16) : null;
- options = null;
- }
- options = options || {};
- var rnds = options.random || (options.rng || rng)();
- // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
- rnds[6] = (rnds[6] & 0x0f) | 0x40;
- rnds[8] = (rnds[8] & 0x3f) | 0x80;
- // Copy bytes to buffer, if provided
- if (buf) {
- for (var ii = 0; ii < 16; ++ii) {
- buf[i + ii] = rnds[ii];
- }
- }
- return buf || bytesToUuid(rnds);
- }
- exports.namespace = function(uuid) {
- // Parse namespace uuid
- var namespaceBytes = (uuid).match(/([0-9a-f][0-9a-f])/gi).map(function(s) {
- return parseInt(s, 16);
- });
- return function(name) {
- var bytes = [].concat(namespaceBytes);
- var utf8String = unescape(encodeURIComponent(s))
- for (var i = 0; i < utf8String.length; i++) {
- bytes.push(utf8String.charCodeAt(i));
- }
- var hash = md5(bytes);
- }
- }
- module.exports = v4;
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