tream parsers, <code class="code">ocamllex</code>-generated lexers,
    <code class="code">ocamlyacc</code>-generated parsers.</li>
</ul>
<h3 id="indication">Scanning indications in format strings</h3><p>Scanning indications appear just after the string conversions <code class="code">%s</code>
    and <code class="code">%[&nbsp;range&nbsp;]</code> to delimit the end of the token. A scanning
    indication is introduced by a <code class="code">@</code> character, followed by some
    plain character <code cl