ss='tstring_end'>&#39;</span></span><span class='comma'>,</span> <span class='id identifier rubyid_width'>width</span><span class='comma'>,</span> <span class='id identifier rubyid_cur_rect'>cur_rect</span><span class='lbracket'>[</span><span class='int'>1</span><span class='rbracket'>]</span><span class='rparen'>)</span>
      <span class='id identifier rubyid_new_labels'>new_labels</span> <span class='op'>&lt;&lt;</span> <span class='id identifier rubyid_old_label'>old_label</span>
    <span class='kw'>en