ScannerT</tt>. For example, 
  given an attribute type <tt>int</tt>, we can use the match_result metafunction:</p>
<pre><span class=keyword>    template </span><span class=special>&lt;</span><span class=keyword>typename </span><span class=identifier>ScannerT</span><span class=special>&gt;
    </span><span class=keyword>struct </span><span class=identifier>result
    </span><span class=special>{
        </span><span class=keyword>typedef typename </span><span class=identifier>match_result</span><span class=s