HewStandard Library

Module std::misc::uuid

UUID generation and validation.

Generate universally unique identifiers (v4 random, v7 timestamp-based) and validate UUID strings.

Examples

import std.misc.uuid;

fn main() {
    let id = uuid.v4();
    println(id);

    if uuid.is_valid(id) {
        println("valid UUID");
    }
}

Contents

Functions

Function v4

pub fn v4() -> string

Generate a random (v4) UUID string.

Examples

import std.misc.uuid;

fn main() {
    let id = uuid.v4();
    // e.g. "550e8400-e29b-41d4-a716-446655440000"
}

Function v7

pub fn v7() -> string

Generate a timestamp-based (v7) UUID string.

UUIDs generated close together are sortable by creation time.

Examples

import std.misc.uuid;

fn main() {
    let id = uuid.v7();
}

Function is_valid

pub fn is_valid(s: string) -> bool

Test whether a string is a valid UUID.

Examples

import std.misc.uuid;

fn main() {
    println(uuid.is_valid("550e8400-e29b-41d4-a716-446655440000"));   // true
    println(uuid.is_valid("not-a-uuid"));   // false
}