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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><!-- /home/reggie/tmp/qt-3.0-reggie-5401/qt-x11-commercial-3.0.5/src/xml/qxml.cpp:1680 --><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>QXmlDeclHandler Class</title><style type="text/css"><!--h3.fn,span.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>QXmlDeclHandler Class Reference<br><small>[<a href="xml.html">XML module</a>]</small></h1><p>The QXmlDeclHandler class provides an interface to report declarationcontent of XML data.<a href="#details">More...</a><p><tt>#include <<a href="qxml-h.html">qxml.h</a>></tt><p>Inherited by <a href="qxmldefaulthandler.html">QXmlDefaultHandler</a>.<p><a href="qxmldeclhandler-members.html">List of all member functions.</a><h2>Public Members</h2><ul><li><div class=fn>virtual bool <a href="#attributeDecl"><b>attributeDecl</b></a> ( const QString & eName, const QString & aName, const QString & type, const QString & valueDefault, const QString & value ) = 0</div></li><li><div class=fn>virtual bool <a href="#internalEntityDecl"><b>internalEntityDecl</b></a> ( const QString & name, const QString & value ) = 0</div></li><li><div class=fn>virtual bool <a href="#externalEntityDecl"><b>externalEntityDecl</b></a> ( const QString & name, const QString & publicId, const QString & systemId ) = 0</div></li><li><div class=fn>virtual QString <a href="#errorString"><b>errorString</b></a> () = 0</div></li></ul><hr><a name="details"></a><h2>Detailed Description</h2>The QXmlDeclHandler class provides an interface to report declarationcontent of XML data.<p> <p> You can set the declaration handler with <a href="qxmlreader.html#setDeclHandler">QXmlReader::setDeclHandler</a>().<p> This interface based upon the SAX2 extension DeclHandler.<p> The interface provides <a href="#attributeDecl">attributeDecl</a>(), <a href="#internalEntityDecl">internalEntityDecl</a>() and<a href="#externalEntityDecl">externalEntityDecl</a>() functions.<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="qxmlcontenthandler.html">QXmlContentHandler</a>, <a href="qxmlentityresolver.html">QXmlEntityResolver</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>bool <a name="attributeDecl"></a>QXmlDeclHandler::attributeDecl ( const <a href="qstring.html">QString</a> & eName, const <a href="qstring.html">QString</a> & aName, const <a href="qstring.html">QString</a> & type, const <a href="qstring.html">QString</a> & valueDefault, const <a href="qstring.html">QString</a> & value )<tt> [pure virtual]</tt></h3><p> The reader calls this function to report an attribute type declaration. Onlythe effective (first) declaration for an attribute is reported.<p> The reader passes the name of the associated element in <em>eName</em> andthe name of the attribute in <em>aName</em>. It passes a string thatrepresents the attribute type in <em>type</em> and a string thatrepresents the attribute default in <em>valueDefault</em>. This string isone of "#IMPLIED", "#REQUIRED", "#FIXED" or null (if none of theothers applies). The reader passes the attribute's defaultvalue in <em>value</em>. If no default value is specified in the XML file,<em>value</em> is <a href="qstring.html#QString-null">QString::null</a>.<p> If this function returns FALSE the reader stops parsing and reportsan error. The reader uses the function <a href="#errorString">errorString</a>() to get the errormessage.<h3 class=fn><a href="qstring.html">QString</a> <a name="errorString"></a>QXmlDeclHandler::errorString ()<tt> [pure virtual]</tt></h3><p> The reader calls this function to get an error string if any of the handlerfunctions returns FALSE.<h3 class=fn>bool <a name="externalEntityDecl"></a>QXmlDeclHandler::externalEntityDecl ( const <a href="qstring.html">QString</a> & name, const <a href="qstring.html">QString</a> & publicId, const <a href="qstring.html">QString</a> & systemId )<tt> [pure virtual]</tt></h3><p> The reader calls this function to report a parsed external entitydeclaration. Only the effective (first) declaration for each entity isreported.<p> The reader passes the name of the entity in <em>name</em>, the public identifier in<em>publicId</em> and the system identifier in <em>systemId</em>. If there is no publicidentifier specified, it passes <a href="qstring.html#QString-null">QString::null</a> in <em>publicId</em>.<p> If this function returns FALSE the reader stops parsing and reportsan error. The reader uses the function <a href="#errorString">errorString</a>() to get the errormessage.<h3 class=fn>bool <a name="internalEntityDecl"></a>QXmlDeclHandler::internalEntityDecl ( const <a href="qstring.html">QString</a> & name, const <a href="qstring.html">QString</a> & value )<tt> [pure virtual]</tt></h3><p> The reader calls this function to report an internal entity declaration. Onlythe effective (first) declaration is reported.<p> The reader passes the name of the entity in <em>name</em> and the value of theentity in <em>value</em>.<p> If this function returns FALSE the reader stops parsing and reportsan error. The reader uses the function <a href="#errorString">errorString</a>() to get the errormessage.<!-- eof --><hr><p>This file is part of the <a href="index.html">Qt toolkit</a>.Copyright © 1995-2002<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 © 2002 <a href="http://www.trolltech.com">Trolltech</a><td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a><td align=right><div align=right>Qt version 3.0.5</div></table></div></address></body></html>⌨️ 快捷键说明
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