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