<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/xml/qxml.cpp:1596 --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>QXmlEntityResolver Class</title> <style type="text/css"><!-- fn { margin-left: 1cm; text-indent: -1cm; } a:link { color: #004faf; text-decoration: none } a:visited { color: #672967; text-decoration: none } body { background: #ffffff; color: black; } --></style> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr bgcolor="#E5E5E5"> <td valign=center> <a href="index.html"> <font color="#004faf">Home</font></a> | <a href="classes.html"> <font color="#004faf">All Classes</font></a> | <a href="mainclasses.html"> <font color="#004faf">Main Classes</font></a> | <a href="annotated.html"> <font color="#004faf">Annotated</font></a> | <a href="groups.html"> <font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"> <font color="#004faf">Functions</font></a> </td> <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QXmlEntityResolver Class Reference<br><small>[<a href="xml.html">XML module</a>]</small></h1> <p>The QXmlEntityResolver class provides an interface to resolve external entities contained in XML data. <a href="#details">More...</a> <p>All the functions in this class are <a href="threads.html#reentrant">reentrant</a> when Qt is built with thread support.</p> <p><tt>#include <<a href="qxml-h.html">qxml.h</a>></tt> <p>Inherited by <a href="qxmldefaulthandler.html">QXmlDefaultHandler</a>. <p><a href="qxmlentityresolver-members.html">List of all member functions.</a> <h2>Public Members</h2> <ul> <li class=fn>virtual bool <a href="#resolveEntity"><b>resolveEntity</b></a> ( const QString & publicId, const QString & systemId, QXmlInputSource *& ret ) = 0</li> <li class=fn>virtual QString <a href="#errorString"><b>errorString</b></a> () = 0</li> </ul> <hr><a name="details"></a><h2>Detailed Description</h2> The QXmlEntityResolver class provides an interface to resolve external entities contained in XML data. <p> <p> If an application needs to implement customized handling for external entities, it must implement this interface, i.e. <a href="#resolveEntity">resolveEntity</a>(), and register it with <a href="qxmlreader.html#setEntityResolver">QXmlReader::setEntityResolver</a>(). <p> See also the <a href="xml.html#sax2Intro">Introduction to SAX2</a>. <p> <p>See also <a href="qxmldtdhandler.html">QXmlDTDHandler</a>, <a href="qxmldeclhandler.html">QXmlDeclHandler</a>, <a href="qxmlcontenthandler.html">QXmlContentHandler</a>, <a href="qxmlerrorhandler.html">QXmlErrorHandler</a>, <a href="qxmllexicalhandler.html">QXmlLexicalHandler</a>, and <a href="xml-tools.html">XML</a>. <hr><h2>Member Function Documentation</h2> <h3 class=fn><a href="qstring.html">QString</a> <a name="errorString"></a>QXmlEntityResolver::errorString ()<tt> [pure virtual]</tt> </h3> <p> The reader calls this function to get an error string if any of the handler functions returns FALSE. <h3 class=fn>bool <a name="resolveEntity"></a>QXmlEntityResolver::resolveEntity ( const <a href="qstring.html">QString</a> & publicId, const <a href="qstring.html">QString</a> & systemId, <a href="qxmlinputsource.html">QXmlInputSource</a> *& ret )<tt> [pure virtual]</tt> </h3> <p> The reader calls this function before it opens any external entity, except the top-level document entity. The application may request the reader to resolve the entity itself (<em>ret</em> is 0) or to use an entirely different input source (<em>ret</em> points to the input source). <p> The reader deletes the input source <em>ret</em> when it no longer needs it, so you should allocate it on the heap with <tt>new</tt>. <p> The argument <em>publicId</em> is the public identifier of the external entity, <em>systemId</em> is the system identifier of the external entity and <em>ret</em> is the return value of this function. If <em>ret</em> is 0 the reader should resolve the entity itself, if it is non-zero it must point to an input source which the reader uses instead. <p> If this function returns FALSE the reader stops parsing and reports an error. The reader uses the function <a href="#errorString">errorString</a>() to get the error message. <!-- eof --> <hr><p> This file is part of the <a href="index.html">Qt toolkit</a>. Copyright © 1995-2007 <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center> <table width=100% cellspacing=0 border=0><tr> <td>Copyright © 2007 <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> <td align=right><div align=right>Qt 3.3.8</div> </table></div></address></body> </html>