    <p>
                  Attempt error recovery, possibly moving the iterator position.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  accept
                </p>
              </td>
<td>
                <p>
                  Force success, moving the iterator position appropriately.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  rethrow
                </p>
              </td>
<td>
                <p>
         