n> <span class="identifier">match_default</span><span class="special">);</span>
   <span class="keyword">bool</span> <span class="identifier">Search</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&amp;</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifi