pan class='id identifier rubyid_loc_path'>loc_path</span><span class='period'>.</span><span class='id identifier rubyid_shift'>shift</span>
      <span class='id identifier rubyid_result'>result</span> <span class='op'>=</span> <span class='id identifier rubyid_section'>section</span><span class='period'>.</span><span class='id identifier rubyid_nil?'>nil?</span> <span class='op'>?</span> <span class='kw'>nil</span> <span class='op'>:</span> <span class='id identifier rubyid_result'>result</span><span class