],

    [
        // unescape, revert step 3 except for back slash
        // For example, if a user escape a '\\*',
        // after step 3, the result will be '\\\\\\*'
        /\\\\\\(?=[$.|*+(){^])/g,
        () => ESCAPE
    ],

    [
        // '\\\\' -> '\\'
        /\\\\/g,
        () => ESCAPE
    ],

    [
        // > The range notation, e.g. [a-zA-Z],

                )
                writer.println("<ul>")
                incubatingDescriptions.sorted().forEach { incubating ->
                    writer.println("   <li>${incubating.escape()}</li>")
                }
                writer.println("</ul>")
            }
            writer.println("</body></html>")
        }
    }

    private