ss="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="k">in</span> <span class="nx">EXPRESSION_START</span>
        <span class="nx">levels</span> <span class="o">+=</span> <span class="mi">1</span>
      <span class="k">else</span> <span class="k">if</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="k">in</span> <span class="nx">EXPRESSION_END</span>
        <span class="nx">levels</span> <span class="o">-=</sp