e> <code>?</code>  <code>[</code> <code class="grammar-literal">0-9</code><code>]</code> <code>+</code> </td>
    </tr>
    <tr id="tg-grammar-production-STRING_LITERAL_QUOTE">
      <td>[23]</td>
      <td><code>STRING_LITERAL_QUOTE</code></td>
      <td>::=</td>
      <td>'<code class="grammar-literal">&quot;</code>' <code>(</code> <code>[</code> <code class="grammar-literal">^</code><code class="grammar-char-escape"><abbr title="quot">>&quot;</abbr></code><code class="grammar-char-escape"><abbr title="as