n class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span>
   <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">Grep</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;&