s was never documented, there were also
odd and undocumented interactions between e.g. non-ASCII patterns
containing \0 and <code>--ignore-case</code>.</p>
</div>
<div class="paragraph">
<p>In future versions we may learn to support patterns containing \0 for
more search backends, until then we&#8217;ll die when the pattern type in
question doesn&#8217;t support them.</p>
</div>
</dd>
<dt class="hdlist1">-e</dt>
<dd>
<p>The next parameter is the pattern. This option has to be
used for patterns starting with