">::</span><span class="identifier">string</span><span class="special">&amp;</span> <span class="identifier">path</span><span class="special">)</span>
<span class="special">{</span>
   <span class="identifier">boost</span><span class="special">::</span><span class="identifier">u32regex</span> <span class="identifier">r</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">make_u32regex</span><span class="special">(</span><span clas