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authorJakob Odersky <jakob@odersky.com>2019-09-22 20:27:41 -0400
committerJakob Odersky <jakob@odersky.com>2019-09-22 22:04:57 -0400
commitcbd98bd0f31142ba17138f3bba9941a705fe5109 (patch)
tree3daef11e2fdde33b68de18e1729c46a217a9c01d /node_modules/uuid/lib/v35.js
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Initial commitv0.1.0
Diffstat (limited to 'node_modules/uuid/lib/v35.js')
-rw-r--r--node_modules/uuid/lib/v35.js57
1 files changed, 57 insertions, 0 deletions
diff --git a/node_modules/uuid/lib/v35.js b/node_modules/uuid/lib/v35.js
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+var bytesToUuid = require('./bytesToUuid');
+
+function uuidToBytes(uuid) {
+ // Note: We assume we're being passed a valid uuid string
+ var bytes = [];
+ uuid.replace(/[a-fA-F0-9]{2}/g, function(hex) {
+ bytes.push(parseInt(hex, 16));
+ });
+
+ return bytes;
+}
+
+function stringToBytes(str) {
+ str = unescape(encodeURIComponent(str)); // UTF8 escape
+ var bytes = new Array(str.length);
+ for (var i = 0; i < str.length; i++) {
+ bytes[i] = str.charCodeAt(i);
+ }
+ return bytes;
+}
+
+module.exports = function(name, version, hashfunc) {
+ var generateUUID = function(value, namespace, buf, offset) {
+ var off = buf && offset || 0;
+
+ if (typeof(value) == 'string') value = stringToBytes(value);
+ if (typeof(namespace) == 'string') namespace = uuidToBytes(namespace);
+
+ if (!Array.isArray(value)) throw TypeError('value must be an array of bytes');
+ if (!Array.isArray(namespace) || namespace.length !== 16) throw TypeError('namespace must be uuid string or an Array of 16 byte values');
+
+ // Per 4.3
+ var bytes = hashfunc(namespace.concat(value));
+ bytes[6] = (bytes[6] & 0x0f) | version;
+ bytes[8] = (bytes[8] & 0x3f) | 0x80;
+
+ if (buf) {
+ for (var idx = 0; idx < 16; ++idx) {
+ buf[off+idx] = bytes[idx];
+ }
+ }
+
+ return buf || bytesToUuid(bytes);
+ };
+
+ // Function#name is not settable on some platforms (#270)
+ try {
+ generateUUID.name = name;
+ } catch (err) {
+ }
+
+ // Pre-defined namespaces, per Appendix C
+ generateUUID.DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8';
+ generateUUID.URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8';
+
+ return generateUUID;
+};