// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.// This module is browser compatible. /** * Generators and validators for UUIDs for versions v1, v3, v4 and v5. * * Use {@linkcode crypto.randomUUID} for v4 generating v4 UUIDs. * * Based on https://github.com/kelektiv/node-uuid -> https://www.ietf.org/rfc/rfc4122.txt * * Support for RFC4122 version 1, 3, 4, and 5 UUIDs * * This module is browser compatible. * * @module */ export*from"./constants.ts";export*as v1from"./v1.ts";export*as v3from"./v3.ts";export*as v4from"./v4.ts";export*as v5from"./v5.ts"; /** * The nil UUID is special form of UUID that is specified to have all 128 bits * set to zero. */exportconstNIL_UUID="00000000-0000-0000-0000-000000000000"; /** * Check if the passed UUID is the nil UUID. * * @example * ```ts * import { isNil } from "https://deno.land/std@$STD_VERSION/uuid/mod.ts"; * * isNil("00000000-0000-0000-0000-000000000000"); // true * isNil(crypto.randomUUID()); // false * ``` */exportfunctionisNil(id:string):boolean{return id ===NIL_UUID;} /** * Test a string to see if it is a valid UUID. * * @example * ```ts * import { validate } from "https://deno.land/std@$STD_VERSION/uuid/mod.ts"; * * validate("not a UUID"); // false * validate("6ec0bd7f-11c0-43da-975e-2a8ad9ebae0b"); // true * ``` */exportfunctionvalidate(uuid:string):boolean{return/^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000)$/i.test( uuid,);} /** * Detect RFC version of a UUID. * * @example * ```ts * import { version } from "https://deno.land/std@$STD_VERSION/uuid/mod.ts"; * * version("d9428888-122b-11e1-b85c-61cd3cbb3210"); // 1 * version("109156be-c4fb-41ea-b1b4-efe1671c5836"); // 4 * ``` */exportfunctionversion(uuid:string):number{if(!validate(uuid)){thrownewTypeError("Invalid UUID");} returnparseInt(uuid[14]!,16);}