n><span class="o">=</span><span class="s1">&#39;&#39;</span><span class="w"></span>
<span class="w">      </span><span class="n">source_string</span><span class="o">=</span><span class="s1">&#39;&#39;</span><span class="w"></span>
<span class="w">   </span><span class="k">endif</span><span class="w"></span>
<span class="c">!-----------------------------------------------------------------------------------------------------------------------------------</span>
<span class="k">end function </span><span class