@nuintun/qrcode/esm/common/encoding/mapping.js

A pure JavaScript QRCode encode and decode library.

/**
 * @module QRCode
 * @package @nuintun/qrcode
 * @license MIT
 * @version 5.0.2
 * @author nuintun <nuintun@qq.com>
 * @description A pure JavaScript QRCode encode and decode library.
 * @see https://github.com/nuintun/qrcode#readme
 */

import { getMappingFromEncodingRanges, getSerialEncodinRanges, getMappingFromCharacters } from './utils.js';

/**
 * @module mapping
 */
const GB2312_MAPPING = getMappingFromEncodingRanges(
  'gb2312',
  [0xa1a1, 0xa1fe],
  [0xa2b1, 0xa2e2],
  [0xa2e5, 0xa2ee],
  [0xa2f1, 0xa2fc],
  [0xa3a1, 0xa3fe],
  [0xa4a1, 0xa4f3],
  [0xa5a1, 0xa5f6],
  [0xa6a1, 0xa6b8],
  [0xa6c1, 0xa6d8],
  [0xa7a1, 0xa7c1],
  [0xa7d1, 0xa7f1],
  [0xa8a1, 0xa8ba],
  [0xa8c5, 0xa8e9],
  [0xa9a4, 0xa9ef],
  ...getSerialEncodinRanges(0xb0a1, 0xd6fe, [0, 93]),
  [0xd7a1, 0xd7f9],
  ...getSerialEncodinRanges(0xd8a1, 0xf7fe, [0, 93])
);
const SHIFT_JIS_MAPPING = getMappingFromEncodingRanges(
  'shift-jis',
  [0x8140, 0x817e],
  [0x8180, 0x81ac],
  [0x81b8, 0x81bf],
  [0x81c8, 0x81ce],
  [0x81da, 0x81e8],
  [0x81f0, 0x81f7],
  [0x81fc, 0x81fc],
  [0x824f, 0x8258],
  [0x8260, 0x8279],
  [0x8281, 0x829a],
  [0x829f, 0x82f1],
  [0x8340, 0x837e],
  [0x8380, 0x8396],
  [0x839f, 0x83b6],
  [0x83bf, 0x83d6],
  [0x8440, 0x8460],
  [0x8470, 0x847e],
  [0x8480, 0x8491],
  [0x849f, 0x84be],
  [0x889f, 0x88fc],
  ...getSerialEncodinRanges(0x8940, 0x97fc, [0, 62, 64, 188]),
  [0x9840, 0x9872],
  [0x989f, 0x98fc],
  ...getSerialEncodinRanges(0x9940, 0x9ffc, [0, 62, 64, 188]),
  ...getSerialEncodinRanges(0xe040, 0xe9fc, [0, 62, 64, 188]),
  [0xea40, 0xea7e],
  [0xea80, 0xeaa4]
);
const NUMERIC_CHARACTERS = '0123456789';
const NUMERIC_MAPPING = getMappingFromCharacters(NUMERIC_CHARACTERS);
const ALPHANUMERIC_CHARACTERS = `${NUMERIC_CHARACTERS}ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./:`;
const ALPHANUMERIC_MAPPING = getMappingFromCharacters(ALPHANUMERIC_CHARACTERS);

export {
  ALPHANUMERIC_CHARACTERS,
  ALPHANUMERIC_MAPPING,
  GB2312_MAPPING,
  NUMERIC_CHARACTERS,
  NUMERIC_MAPPING,
  SHIFT_JIS_MAPPING
};