/pre><p>check the CData parsed for validation in the current stack</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the RelaxNG validation context</td></tr><tr><td><span class="term"><i><tt>data</tt></i>:</span></td><td>some character data read</td></tr><tr><td><span class="term"><i><tt>len</tt></i>:</span></td><td>the length of the data</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>1 if n