_isCJKName()

in name_utils.js [133:161]

• 17 lines of code
• 9 McCabe index (conditional complexity)

  _isCJKName(name) {
    // The name is considered to be a CJK name if it is only CJK characters,
    // spaces, and "middle dot" separators, with at least one CJK character, and
    // no more than 2 words.
    //
    // Chinese and Japanese names are usually spelled out using the Han
    // characters (logographs), which constitute the "CJK Unified Ideographs"
    // block in Unicode, also referred to as Unihan. Korean names are usually
    // spelled out in the Korean alphabet (Hangul), although they do have a Han
    // equivalent as well.

    let reCJK = new RegExp("[" + this.CJK_RANGE.join("") + "]");
    let previousWasCJK = false;
    let wordCount = 0;

    for (let c of name) {
      let isMiddleDot = this.MIDDLE_DOT.includes(c);
      let isCJK = !isMiddleDot && reCJK.test(c);
      if (!isCJK && !isMiddleDot && !this.WHITESPACE.includes(c)) {
        return false;
      }
      if (isCJK && !previousWasCJK) {
        wordCount++;
      }
      previousWasCJK = isCJK;
    }

    return wordCount > 0 && wordCount < 3;
  },