end

    lex:add_fold_point('strange_token', '|', fold_strange_token)
    </code></pre>

    <p>Any time the lexer encounters a &lsquo;|&rsquo; that is a &ldquo;strange_token&rdquo;, it calls the
    <code>fold_strange_token</code> function to determine if &lsquo;|&rsquo; is a fold point. The lexer
    calls these functions with the following arguments: the text to identify fold
    points in, the beginning position of the current line in the text to fold,
    the current line&rsquo;s text, the position in 