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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/ox/core

Просмотр файла: Base58.ts

import * as Bytes from './Bytes.js'
import type * as Errors from './Errors.js'
import * as Hex from './Hex.js'
import * as internal from './internal/base58.js'

/**
 * Encodes a {@link ox#Bytes.Bytes} to a Base58-encoded string.
 *
 * @example
 * ```ts twoslash
 * import { Base58, Bytes } from 'ox'
 *
 * const value = Base58.fromBytes(Bytes.fromString('Hello World!'))
 * // @log: '2NEpo7TZRRrLZSi2U'
 * ```
 *
 * @param value - The byte array to encode.
 * @returns The Base58 encoded string.
 */
export function fromBytes(value: Bytes.Bytes) {
  return internal.from(value)
}

export declare namespace fromBytes {
  type ErrorType = internal.from.ErrorType | Errors.GlobalErrorType
}

/**
 * Encodes a {@link ox#Hex.Hex} to a Base58-encoded string.
 *
 * @example
 * ```ts twoslash
 * import { Base58, Hex } from 'ox'
 *
 * const value = Base58.fromHex(Hex.fromString('Hello World!'))
 * // @log: '2NEpo7TZRRrLZSi2U'
 * ```
 *
 * @param value - The byte array to encode.
 * @returns The Base58 encoded string.
 */
export function fromHex(value: Hex.Hex) {
  return internal.from(value)
}

export declare namespace fromHex {
  type ErrorType = internal.from.ErrorType | Errors.GlobalErrorType
}

/**
 * Encodes a string to a Base58-encoded string.
 *
 * @example
 * ```ts twoslash
 * import { Base58 } from 'ox'
 *
 * const value = Base58.fromString('Hello World!')
 * // @log: '2NEpo7TZRRrLZSi2U'
 * ```
 *
 * @param value - The string to encode.
 * @returns The Base58 encoded string.
 */
export function fromString(value: string) {
  return internal.from(Bytes.fromString(value))
}

export declare namespace fromString {
  type ErrorType = internal.from.ErrorType | Errors.GlobalErrorType
}

/**
 * Decodes a Base58-encoded string to a {@link ox#Bytes.Bytes}.
 *
 * @example
 * ```ts twoslash
 * import { Base58 } from 'ox'
 *
 * const value = Base58.toBytes('2NEpo7TZRRrLZSi2U')
 * // @log: Uint8Array [ 72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33 ]
 * ```
 *
 * @param value - The Base58 encoded string.
 * @returns The decoded byte array.
 */
export function toBytes(value: string): Bytes.Bytes {
  return Bytes.fromHex(toHex(value))
}

export declare namespace toBytes {
  type ErrorType = Errors.GlobalErrorType
}

/**
 * Decodes a Base58-encoded string to {@link ox#Hex.Hex}.
 *
 * @example
 * ```ts twoslash
 * import { Base58 } from 'ox'
 *
 * const value = Base58.toHex('2NEpo7TZRRrLZSi2U')
 * // @log: '0x48656c6c6f20576f726c6421'
 * ```
 *
 * @param value - The Base58 encoded string.
 * @returns The decoded hex string.
 */
export function toHex(value: string): Hex.Hex {
  let integer = BigInt(0)
  let pad = 0
  let checkPad = true

  for (let i = 0; i < value.length; i++) {
    const char = value[i]!

    // check for leading 1s
    if (checkPad && char === '1') pad++
    else checkPad = false

    // check for invalid characters
    if (typeof internal.alphabetToInteger[char] !== 'bigint')
      throw new Error('invalid base58 character: ' + char)

    integer = integer * 58n
    integer = integer + internal.alphabetToInteger[char]!
  }

  if (!pad) return `0x${integer.toString(16)}` as Hex.Hex
  return `0x${'0'.repeat(pad * 2)}${integer.toString(16)}` as Hex.Hex
}

export declare namespace toHex {
  type ErrorType = Errors.GlobalErrorType
}

/**
 * Decodes a Base58-encoded string to a string.
 *
 * @example
 * ```ts twoslash
 * import { Base58 } from 'ox'
 *
 * const value = Base58.toString('2NEpo7TZRRrLZSi2U')
 * // @log: 'Hello World!'
 * ```
 *
 * @param value - The Base58 encoded string.
 * @returns The decoded string.
 */
export function toString(value: string): string {
  return Hex.toString(toHex(value))
}

export declare namespace toString {
  type ErrorType = Errors.GlobalErrorType
}

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