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| 6 | <title>QXmlDeclHandler Class</title>
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| 20 | <font color="#004faf">Home</font></a>
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| 24 | <font color="#004faf">Main Classes</font></a>
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| 31 | </td>
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| 32 | <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>
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| 33 |
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| 34 | <p>The QXmlDeclHandler class provides an interface to report declaration
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| 35 | content of XML data.
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| 36 | <a href="#details">More...</a>
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| 37 | <p>All the functions in this class are <a href="threads.html#reentrant">reentrant</a> when Qt is built with thread support.</p>
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| 38 | <p><tt>#include <<a href="qxml-h.html">qxml.h</a>></tt>
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| 39 | <p>Inherited by <a href="qxmldefaulthandler.html">QXmlDefaultHandler</a>.
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| 40 | <p><a href="qxmldeclhandler-members.html">List of all member functions.</a>
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| 41 | <h2>Public Members</h2>
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| 42 | <ul>
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| 43 | <li 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</li>
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| 44 | <li class=fn>virtual bool <a href="#internalEntityDecl"><b>internalEntityDecl</b></a> ( const QString & name, const QString & value ) = 0</li>
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| 45 | <li class=fn>virtual bool <a href="#externalEntityDecl"><b>externalEntityDecl</b></a> ( const QString & name, const QString & publicId, const QString & systemId ) = 0</li>
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| 46 | <li class=fn>virtual QString <a href="#errorString"><b>errorString</b></a> () = 0</li>
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| 47 | </ul>
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| 48 | <hr><a name="details"></a><h2>Detailed Description</h2>
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| 49 |
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| 50 |
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| 51 |
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| 52 | The QXmlDeclHandler class provides an interface to report declaration
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| 53 | content of XML data.
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| 54 |
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| 55 | <p>
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| 56 |
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| 57 | <p> You can set the declaration handler with
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| 58 | <a href="qxmlreader.html#setDeclHandler">QXmlReader::setDeclHandler</a>().
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| 59 | <p> This interface is based on the SAX2 extension DeclHandler.
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| 60 | <p> The interface provides <a href="#attributeDecl">attributeDecl</a>(), <a href="#internalEntityDecl">internalEntityDecl</a>() and
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| 61 | <a href="#externalEntityDecl">externalEntityDecl</a>() functions.
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| 62 | <p> See also the <a href="xml.html#sax2Intro">Introduction to SAX2</a>.
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| 63 | <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>.
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| 64 |
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| 65 | <hr><h2>Member Function Documentation</h2>
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| 66 | <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>
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| 67 | </h3>
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| 68 |
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| 69 | <p> The reader calls this function to report an attribute type
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| 70 | declaration. Only the effective (first) declaration for an
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| 71 | attribute is reported.
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| 72 | <p> The reader passes the name of the associated element in <em>eName</em>
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| 73 | and the name of the attribute in <em>aName</em>. It passes a string that
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| 74 | represents the attribute type in <em>type</em> and a string that
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| 75 | represents the attribute default in <em>valueDefault</em>. This string
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| 76 | is one of "#IMPLIED", "#REQUIRED", "#FIXED" or <a href="qstring.html#QString-null">QString::null</a> (if
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| 77 | none of the others applies). The reader passes the attribute's
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| 78 | default value in <em>value</em>. If no default value is specified in the
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| 79 | XML file, <em>value</em> is QString::null.
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| 80 | <p> If this function returns FALSE the reader stops parsing and
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| 81 | reports an error. The reader uses the function <a href="#errorString">errorString</a>() to
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| 82 | get the error message.
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| 83 |
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| 84 | <h3 class=fn><a href="qstring.html">QString</a> <a name="errorString"></a>QXmlDeclHandler::errorString ()<tt> [pure virtual]</tt>
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| 85 | </h3>
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| 86 |
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| 87 | <p> The reader calls this function to get an error string if any of
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| 88 | the handler functions returns FALSE.
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| 89 |
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| 90 | <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>
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| 91 | </h3>
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| 92 |
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| 93 | <p> The reader calls this function to report a parsed external entity
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| 94 | declaration. Only the effective (first) declaration for each
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| 95 | entity is reported.
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| 96 | <p> The reader passes the name of the entity in <em>name</em>, the public
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| 97 | identifier in <em>publicId</em> and the system identifier in <em>systemId</em>. If there is no public identifier specified, it passes
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| 98 | <a href="qstring.html#QString-null">QString::null</a> in <em>publicId</em>.
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| 99 | <p> If this function returns FALSE the reader stops parsing and
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| 100 | reports an error. The reader uses the function <a href="#errorString">errorString</a>() to
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| 101 | get the error message.
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| 102 |
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| 103 | <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>
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| 104 | </h3>
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| 105 |
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| 106 | <p> The reader calls this function to report an internal entity
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| 107 | declaration. Only the effective (first) declaration is reported.
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| 108 | <p> The reader passes the name of the entity in <em>name</em> and the value
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| 109 | of the entity in <em>value</em>.
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| 110 | <p> If this function returns FALSE the reader stops parsing and
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| 111 | reports an error. The reader uses the function <a href="#errorString">errorString</a>() to
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| 112 | get the error message.
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| 113 |
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| 114 | <!-- eof -->
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| 115 | <hr><p>
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| 116 | This file is part of the <a href="index.html">Qt toolkit</a>.
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| 117 | Copyright © 1995-2007
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| 118 | <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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| 119 | <table width=100% cellspacing=0 border=0><tr>
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| 120 | <td>Copyright © 2007
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| 121 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 122 | <td align=right><div align=right>Qt 3.3.8</div>
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| 123 | </table></div></address></body>
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| 124 | </html>
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