lass="special">,</span> <span class="identifier">A3</span></code>
                      are optional and can be specified in any order. <code class="computeroutput"><span class="identifier">name</span></code> is an optional string
                      that gives the rule its name, useful for debugging.
                    </p>
                  </td>
</tr>
<tr>
<td>
                    <p>
</p>
<pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class=