private static final int DEFAULT_MAX_SIZE = 65;
    private static final char BOX_CHAR = '*';

    private static final Pattern S_FILTER = Pattern.compile("\\s+");

    public static String separatorLine() {
        StringBuilder sb = new StringBuilder(DEFAULT_MAX_SIZE);
        repeat(sb, '*', DEFAULT_MAX_SIZE);
        return sb.toString();
    }

    public static List<String> format(String... lines) {