text: /*!
   * convert-filename-ja
   * Copyright(c) 2018 ryoichi-obara
   * MIT Licensed
   */
  
  const truncate = require('truncate-utf8-bytes');
  
  const controlRe = /[\x00-\x1f\x80-\x9f]/g;
  const reservedRe = /^\.+$/;
  const windowsReservedRe = /^(con|prn|aux|nul|com[0-9]|lpt[0-9])(\..*)?$/i;
  const windowsTrailingRe = /^[ ]+|[. ]+$/g;
  
  /**
   * Converts/Replaces characters in strings that are illegal/unsafe for filenames.
   * Unsafe characters are either removed or replaced by a substitute set
   * in the optional `options` object.
   *
   * Unicode Control codes
   * C0 0x00-0x1f & C1 (0x80-0x9f)
   * http://en.wikipedia.org/wiki/C0_and_C1_control_codes
   *
   * Reserved filenames on Unix-based systems (".", "..")
   * Reserved filenames in Windows ("CON", "PRN", "AUX", "NUL", "COM1",
   * "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9",
   * "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", and
   * "LPT9") case-insesitively and with or without filename extensions.
   *
   * Convert illegal characters on various Operating Systems to double byte characters.
   * / ? < > ¥ \ : * | "
   * https://kb.acronis.com/content/39790
   *
   * Capped at 255 characters in length.
   * http://unix.stackexchange.com/questions/32795/what-is-the-maximum-allowed-filename-and-folder-size-with-ecryptfs
   *
   * @param  {String} input Original filename
   * @return {String}       Converted filename
   */
  module.exports.convert = (input) => {
    const converted = input
      .replace(controlRe, '')
      .replace(reservedRe, '')
      .replace(windowsReservedRe, '')
      .replace(windowsTrailingRe, '')
      .replace(/\//g, '／')
      .replace(/\?/g, '？')
      .replace(/</g, '＜')
      .replace(/>/g, '＞')
      .replace(/¥/g, '￥')
      .replace(/\\/g, '￥')
      .replace(/\*/g, '＊')
      .replace(/\|/g, '｜')
      .replace(/"/g, '”')
      .replace(/:/g, '：');
  
    return truncate(converted, 255);
  };
  