/span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">char_type</span> <span class="special">&gt;</span> <a name="boost.xpressive.c_regex_traits.string_type"></a><span class="identifier">string_type</span><span class="special">;</span>    
  <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span>                    <a name="boost.xpressive.c_regex_traits.locale_type"></a><span class="identi