docs: public static String last(String list, char delimiter) {
  
  	int len = list.length();
  	if (len == 0) return "";
  	int index = 0;
  
  	while (true) {
  	    index = list.lastIndexOf(delimiter);
  	    if (index == -1) {
  		return list;
  	    }
  	    else if (index + 1 == len) {
  		list = list.substring(0, len - 1);
  		len--;
  	    }
  	    else {
  		return list.substring(index + 1);
  	    }
  	}
      }