pan> <span class="keywordtype">char</span>**  x(<span class="keywordtype">size_t</span>) <span class="keyword">const</span> = 0;
<a name="l00233"></a>00233 <span class="preprocessor">#endif</span>
<a name="l00234"></a>00234 <span class="preprocessor"></span>
<a name="l00235"></a>00235   <span class="comment">// return size of output tags</span>
<a name="l00236"></a>00236   <span class="keyword">virtual</span> <span class="keywordtype">size_t</span> ysize() <span class="keyword">const</span> = 0;
<a name="l0