e must be a numeric scalar &gt; 0&#39;</span>);</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;    end</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;   <span class="keywordflow">case</span> <span class="stringliteral">&#39;fontencoding&#39;</span></div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;    fontencoding = lower(value);</div><div class="line"><a name="l00174"></a><span class="lineno">  174</spa