he second assignment
    states that any &ldquo;/*&rdquo; or &ldquo;*/&rdquo; that the lexer recognizes as part of a
    <code>lexer.COMMENT</code> token is a fold point. The lexer does not consider any
    occurrences of these characters outside their defined tokens (such as in a
    string) as fold points. How do you specify fold keywords? Here is an example
    for Lua:</p>

    <pre><code>
    lex:add_fold_point(lexer.KEYWORD, 'if', 'end')
    lex:add_fold_point(lexer.KEYWORD, 'do', 'end')
    lex:add_f