haracter
      without reading it, specify a null field width, i.e. use
      specification <code class="code">%0c</code>. Raise <code class="code"><span class="constructor">Invalid_argument</span></code>, if the field width
      specification is greater than 1.</li>
<li><code class="code"><span class="constructor">C</span></code>: reads a single delimited character (delimiters and special
      escaped characters follow the lexical conventions of OCaml).</li>
<li><code class="code">f</code>, <code class="