@nuintun/qrcode/esm/encoder/segments/Byte.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 { Mode } from '../../common/Mode.js';
import { Charset } from '../../common/Charset.js';
import { BitArray } from '../../common/BitArray.js';
import { assertContent, assertCharset } from '../utils/asserts.js';

/**
 * @module Byte
 */
class Byte {
  #content;
  #charset;
  /**
   * @constructor
   * @param content The content to encode.
   * @param charset The charset of the content.
   */
  constructor(content, charset = Charset.ISO_8859_1) {
    assertContent(content);
    assertCharset(charset);
    this.#content = content;
    this.#charset = charset;
  }
  /**
   * @property mode
   * @description The mode of the segment.
   */
  get mode() {
    return Mode.BYTE;
  }
  /**
   * @property content
   * @description The content of the segment.
   */
  get content() {
    return this.#content;
  }
  /**
   * @property charset
   * @description The charset of the content.
   */
  get charset() {
    return this.#charset;
  }
  /**
   * @method encode
   * @description Encode the segment.
   * @param encode The text encode function.
   */
  encode(encode) {
    const bits = new BitArray();
    const bytes = encode(this.#content, this.#charset);
    for (const byte of bytes) {
      bits.append(byte, 8);
    }
    return bits;
  }
}

export { Byte };