chr  <span class="st">&quot;CASE_UNKNOWN&quot;</span> <span class="st">&quot;CASE_UNKNOWN&quot;</span> <span class="st">&quot;CASE_UNKNOWN&quot;</span> <span class="st">&quot;CASE_UNKNOWN&quot;</span> ...</a>
<a class="sourceLine" id="cb4-9" data-line-number="9"> <span class="op">$</span><span class="st"> </span>form          <span class="op">:</span><span class="st"> </span>chr  <span class="st">&quot;FORM_UNKNOWN&quot;</span> <span class="st">&quot;FORM_UNKNOWN&quot;</span> <span class="st">&quot;FORM_UNK