l be used to provide file and line information since those are not provided as part of the SAX validation flow Setting @f to NULL disable the locator.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>f</tt></i>:</span></td><td>the locator function pointer</td></tr><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the locator context</