Hexadecimal encoding utilities.

Encodes binary buffer data into lowercase hexadecimal strings and decodes hex strings back into buffers. Both uppercase and lowercase hex digits are accepted when decoding.

local hex = require("@eryx/encoding/hex")
local encoded = hex.encode(buffer.fromstring("\xff\x0a"))
print(encoded) -- "ff0a"

Summary

Functions

API Reference

Functions

hex.encode

Encodes a buffer into a lowercase hexadecimal string.

hex.encode(buf: buffer | string) → string

Parameters

buf: buffer | string

The binary data to encode.

Returns

string

The hex-encoded string (always lowercase).

hex.decode

Decodes a hexadecimal string back into a buffer.

Accepts both uppercase (A–F) and lowercase (a–f) hex digits. The input string length must be even.

hex.decode(str: string) → buffer

Parameters

str: string

The hex-encoded string.

Returns

buffer

The decoded binary data.