| import validate from './validate.js'; |
| |
| function parse(uuid) { |
| if (!validate(uuid)) { |
| throw TypeError('Invalid UUID'); |
| } |
| |
| let v; |
| const arr = new Uint8Array(16); // Parse ########-....-....-....-............ |
| |
| arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24; |
| arr[1] = v >>> 16 & 0xff; |
| arr[2] = v >>> 8 & 0xff; |
| arr[3] = v & 0xff; // Parse ........-####-....-....-............ |
| |
| arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8; |
| arr[5] = v & 0xff; // Parse ........-....-####-....-............ |
| |
| arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8; |
| arr[7] = v & 0xff; // Parse ........-....-....-####-............ |
| |
| arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8; |
| arr[9] = v & 0xff; // Parse ........-....-....-....-############ |
| // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes) |
| |
| arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff; |
| arr[11] = v / 0x100000000 & 0xff; |
| arr[12] = v >>> 24 & 0xff; |
| arr[13] = v >>> 16 & 0xff; |
| arr[14] = v >>> 8 & 0xff; |
| arr[15] = v & 0xff; |
| return arr; |
| } |
| |
| export default parse; |