'id identifier rubyid_cur_source_top'>cur_source_top</span><span class='rparen'>)</span>   <span class='op'>||</span>
      <span class='lparen'>(</span><span class='id identifier rubyid_x'>x</span> <span class='op'>+</span> <span class='id identifier rubyid_w'>w</span> <span class='op'>&lt;</span> <span class='ivar'>@source_x</span><span class='rparen'>)</span>        <span class='op'>||</span>
      <span class='lparen'>(</span><span class='id identifier rubyid_y'>y</span> <span class='op'>+</span> <span 