ed input functions also
    support polymorphism, in particular arbitrary interaction with
    polymorphic user-defined scanners. Furthermore, the OCaml formatted input
    facility is fully type-checked at compile time.</p>
<h2 id="1_Formattedinputchannel">Formatted input channel</h2>
<pre><span id="MODULEScanning"><span class="keyword">module</span> <a href="Scanf.Scanning.html">Scanning</a></span>: <code class="code"><span class="keyword">sig</span></code> <a href="Scanf.Scanning.html">..</a> <code class