class="identifier">vector</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">charT</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <a name="boost.date_time.special_values_parser.collection_type"></a><span class="identifier">collection_type</span><span class="special">;</span>
  <span class="keyword">typedef</span> <span class