>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;        </div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;        effprefix = <span class="stringliteral">&quot;&quot;</span></div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;        <span class="keywordflow">if</span>( present(prefix) ) effprefix = prefix</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        </div>
<div c