/span>type       </strong> ::=  &quot;a&quot; | &quot;A&quot; | &quot;b&quot; | &quot;B&quot; | &quot;c&quot; | &quot;d&quot; | &quot;e&quot; | &quot;E&quot; | &quot;f&quot; | &quot;F&quot; | &quot;g&quot; | &quot;G&quot; |
                 &quot;o&quot; | &quot;p&quot; | &quot;s&quot; | &quot;x&quot; | &quot;X&quot;
</pre>
<p>The <em>fill</em> character can be any Unicode code point other than <code class="docutils literal notranslate"><span class="pre">'{'</span></code> or
<code class="docutils literal no