put"><span class="keyword">true</span></code>
          or <code class="computeroutput"><span class="keyword">false</span></code> depending on the
          result of the parse. The first iterator is passed by reference. On a successful
          parse, this iterator is repositioned to the rightmost position consumed
          by the parser. If this becomes equal to <code class="computeroutput"><span class="identifier">last</span></code>,
          then we have a full match. If not, then we have a partial m