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/**
* Implements base32 and base32hex from [RFC4648](https://datatracker.ietf.org/doc/html/rfc4648)
* (no differences from [RFC3548](https://datatracker.ietf.org/doc/html/rfc4648)).
*
* ```js
* import { fromBase32, toBase32 } from '@exodus/bytes/base32.js'
* import { fromBase32hex, toBase32hex } from '@exodus/bytes/base32.js'
* ```
*
* @module @exodus/bytes/base32.js
*/
/// <reference types="node" />
import type { OutputFormat, Uint8ArrayBuffer } from './array.js';
/**
* Options for base32 encoding
*/
export interface ToBase32Options {
/** Whether to include padding characters (default: false) */
padding?: boolean;
}
/**
* Padding mode for base32 decoding
* - `true`: padding is required
* - `false`: padding is not allowed
* - `'both'`: padding is optional (default)
*/
export type PaddingMode = boolean | 'both';
/**
* Options for base32 decoding
*/
export interface FromBase32Options {
/** Output format (default: 'uint8') */
format?: OutputFormat;
/** Padding mode */
padding?: PaddingMode;
}
/**
* Encode a `Uint8Array` to a base32 string (RFC 4648)
*
* @param arr - The input bytes
* @param options - Encoding options
* @returns The base32 encoded string
*/
export function toBase32(arr: Uint8Array, options?: ToBase32Options): string;
/**
* Encode a `Uint8Array` to a base32hex string (RFC 4648)
*
* @param arr - The input bytes
* @param options - Encoding options (padding defaults to false)
* @returns The base32hex encoded string
*/
export function toBase32hex(arr: Uint8Array, options?: ToBase32Options): string;
/**
* Decode a base32 string to bytes
*
* Operates in strict mode for last chunk, does not allow whitespace
*
* @param string - The base32 encoded string
* @param options - Decoding options
* @returns The decoded bytes
*/
export function fromBase32(string: string, options?: FromBase32Options): Uint8ArrayBuffer;
export function fromBase32(string: string, options: FromBase32Options & { format: 'buffer' }): Buffer;
/**
* Decode a base32hex string to bytes
*
* Operates in strict mode for last chunk, does not allow whitespace
*
* @param string - The base32hex encoded string
* @param options - Decoding options
* @returns The decoded bytes
*/
export function fromBase32hex(string: string, options?: FromBase32Options): Uint8ArrayBuffer;
export function fromBase32hex(string: string, options: FromBase32Options & { format: 'buffer' }): Buffer;
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