class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>::</span><span class='tstring_end'>&quot;</span></span><span class='rparen'>)</span>
  <span class='id identifier rubyid_names'>names</span><span class='period'>.</span><span class='id identifier rubyid_shift'>shift</span> <span class='kw'>if</span> <span class='id identifier rubyid_names'>names</span><span class='period'>.</span><span class='id identifier rubyid_empty?'>empty?</span> <span class='op'>||</span> <span class=