r">#ifdef</span> <span class="identifier">BOOST_REGEX_MATCH_EXTRA</span>
   <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">value_type</span><span class="special">::</span><span class="identifier">capture_sequence_type</span> <span class="identifier">capture_sequence_type</span><span class="special">;</span>
   <span class="keyword">const</span> <span class="identifier">capture_sequence_type</span><span class="special">&amp;</span> <a class="link" href="ma