e border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>a schema validation context</td></tr><tr><td><span class="term"><i><tt>doc</tt></i>:</span></td><td>a parsed document tree</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the document is schemas valid, a positive error code number otherwise and -1 in case of internal or API error.</td></tr></tbody></table></div><h3><a name="xmlSchemaValidateFile" id="xmlSchemaValidateFile"