>;    <span class="comment">% path to input files folder</span>
        files    <span class="string">string</span>  <span class="string">=</span> <span class="string">string.empty</span>;    <span class="comment">% full name of input files (with path)</span>
        cur_file <span class="string">string</span>  <span class="string">=</span> <span class="string">string.empty</span>;    <span class="comment">% name of current file being run</span>
        is_last  <span class="string">logical</span> <span cla