pan>
<a name="l00323"></a>00323   <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* toString(<span class="keywordtype">char</span>* result , <span class="keywordtype">size_t</span> size) = 0;
<a name="l00324"></a>00324 
<a name="l00325"></a>00325   <span class="comment">// parse &#39;str&#39; and return parsed result.</span>
<a name="l00326"></a>00326   <span class="comment">// You don&#39;t need to delete return value, but the buffer</span>
<a na