the current line the fold point text
    starts at, and the fold point text itself.</p>

    <p><a id="lexer.Fold.by.Indentation"></a></p>

    <h4>Fold by Indentation</h4>

    <p>Some languages have significant whitespace and/or no delimiters that indicate
    fold points. If your lexer falls into this category and you would like to
    mark fold points based on changes in indentation, create the lexer with a
    <code>fold_by_indentation = true</code> option:</p>

    <pre><code>
    local lex = lexer.ne