public String[] splitStringByLines(String str) {
    if (str == null) return ArrayUtilRt.EMPTY_STRING_ARRAY;
    if (str.equals(myString)) {
      return myLines;
    }
    myString = convertTabs(str, 2);
    myLines = StringUtil.splitByLines(myString, false);
    return myLines;
  }
public String[] splitStringByLines(String str)