(</span>
        <span class="identifier">Expr</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">expr</span>
      <span class="special">,</span> <span class="identifier">Delimiter</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">d</span>
      <span class="special">,</span> <span class="identifier">BOOST_SCOPED_ENUM</span><span class="special">(</span><span class="identifier">delimit_flag</span><span clas