>,</span> 
                       <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> start_delim<span class="special">,</span> 
                       <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> open_end_delim<span class="special">,</span> 
                       <span class="keyword">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span> c