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230 lines
9.7 KiB
230 lines
9.7 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/xml/tagreader-with-features/tagreader.doc:5 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>Demonstration of SAX2 features</title>
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<style type="text/css"><!--
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fn { margin-left: 1cm; text-indent: -1cm; }
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a:link { color: #004faf; text-decoration: none }
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a:visited { color: #672967; text-decoration: none }
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body { background: #ffffff; color: black; }
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--></style>
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</head>
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<body>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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| <a href="classes.html">
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Annotated</font></a>
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<font color="#004faf">Grouped Classes</font></a>
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| <a href="functions.html">
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<font color="#004faf">Functions</font></a>
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</td>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Demonstration of SAX2 features</h1>
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<p>
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<p> This example presents a small <a href="xml.html#sax2">SAX2</a>
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reader that outputs the qualified names and the
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respective namespace URIs of all elements and attributes in an
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XML file. Additionally the tree structure of the document is displayed.
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<p> In three listviews the program shows the different output of the reader
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depending on how the SAX2 <a href="xml.html#sax2Namespaces">features</a>
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<em>http://xml.org/sax/features/namespaces</em> and
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<em>http://xml.org/sax/features/namespace-prefixes</em> are set.
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<p> This example is thoroughly explained in a
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<a href="xml-sax-features-walkthrough.html">walkthrough.</a>
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<p> <hr>
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<p> Header file:
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<p> <pre>/*
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$Id: qt/structureparser.h 3.3.8 edited May 27 2003 $
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*/
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#ifndef STRUCTUREPARSER_H
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#define STRUCTUREPARSER_H
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#include <<a href="qxml-h.html">ntqxml.h</a>>
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#include <<a href="qptrstack-h.html">ntqptrstack.h</a>>
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class TQListView;
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class TQListViewItem;
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class TQString;
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class StructureParser: public <a href="qxmldefaulthandler.html">TQXmlDefaultHandler</a>
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{
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public:
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StructureParser( <a href="ntqlistview.html">TQListView</a> * );
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bool startElement( const <a href="ntqstring.html">TQString</a>&, const <a href="ntqstring.html">TQString</a>&, const <a href="ntqstring.html">TQString</a>& ,
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const <a href="qxmlattributes.html">TQXmlAttributes</a>& );
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bool endElement( const <a href="ntqstring.html">TQString</a>&, const <a href="ntqstring.html">TQString</a>&, const <a href="ntqstring.html">TQString</a>& );
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void setListView( <a href="ntqlistview.html">TQListView</a> * );
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private:
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<a href="ntqptrstack.html">TQPtrStack</a><TQListViewItem> stack;
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<a href="ntqlistview.html">TQListView</a> * table;
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};
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#endif
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</pre>
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<p> <hr>
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<p> Implementation:
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<p> <pre>/*
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$Id: qt/structureparser.cpp 3.3.8 edited May 27 2003 $
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*/
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#include "structureparser.h"
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#include <<a href="qstring-h.html">ntqstring.h</a>>
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#include <<a href="qlistview-h.html">ntqlistview.h</a>>
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<a name="f528"></a>StructureParser::StructureParser( <a href="ntqlistview.html">TQListView</a> * t )
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: <a href="qxmldefaulthandler.html">TQXmlDefaultHandler</a>()
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{
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setListView( t );
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}
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void <a name="f529"></a>StructureParser::setListView( <a href="ntqlistview.html">TQListView</a> * t )
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{
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table = t;
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table->setSorting( -1 );
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table->addColumn( "Qualified name" );
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table->addColumn( "Namespace" );
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}
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<a name="x1971"></a>bool StructureParser::<a href="qxmlcontenthandler.html#startElement">startElement</a>( const <a href="ntqstring.html">TQString</a>& namespaceURI,
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const <a href="ntqstring.html">TQString</a>& ,
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const <a href="ntqstring.html">TQString</a>& qName,
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const <a href="qxmlattributes.html">TQXmlAttributes</a>& attributes)
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{
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<a href="qlistviewitem.html">TQListViewItem</a> * element;
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if ( ! stack.isEmpty() ){
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<a href="qlistviewitem.html">TQListViewItem</a> *lastChild = stack.top()->firstChild();
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if ( lastChild ) {
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<a name="x1965"></a> while ( lastChild-><a href="qlistviewitem.html#nextSibling">nextSibling</a>() )
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lastChild = lastChild-><a href="qlistviewitem.html#nextSibling">nextSibling</a>();
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}
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element = new <a href="qlistviewitem.html">TQListViewItem</a>( stack.top(), lastChild, qName, namespaceURI );
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} else {
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element = new <a href="qlistviewitem.html">TQListViewItem</a>( table, qName, namespaceURI );
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}
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stack.push( element );
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<a name="x1966"></a> element-><a href="qlistviewitem.html#setOpen">setOpen</a>( TRUE );
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<a name="x1967"></a> if ( attributes.<a href="qxmlattributes.html#length">length</a>() > 0 ) {
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for ( int i = 0 ; i < attributes.<a href="qxmlattributes.html#length">length</a>(); i++ ) {
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<a name="x1969"></a><a name="x1968"></a> new <a href="qlistviewitem.html">TQListViewItem</a>( element, attributes.<a href="qxmlattributes.html#qName">qName</a>(i), attributes.<a href="qxmlattributes.html#uri">uri</a>(i) );
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}
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}
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return TRUE;
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}
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<a name="x1970"></a>bool StructureParser::<a href="qxmlcontenthandler.html#endElement">endElement</a>( const <a href="ntqstring.html">TQString</a>&, const <a href="ntqstring.html">TQString</a>&,
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const <a href="ntqstring.html">TQString</a>& )
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{
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stack.pop();
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return TRUE;
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}
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</pre>
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<p> <hr>
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<p> Main:
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<p> <pre>/****************************************************************************
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** $Id: qt/tagreader.cpp 3.3.8 edited Jan 11 14:46 $
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**
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** Copyright (C) 2005-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for TQt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#include "structureparser.h"
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#include <<a href="qapplication-h.html">ntqapplication.h</a>>
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#include <<a href="qfile-h.html">ntqfile.h</a>>
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#include <<a href="qxml-h.html">ntqxml.h</a>>
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#include <<a href="qlistview-h.html">ntqlistview.h</a>>
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#include <<a href="qgrid-h.html">ntqgrid.h</a>>
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#include <<a href="qmainwindow-h.html">ntqmainwindow.h</a>>
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#include <<a href="qlabel-h.html">ntqlabel.h</a>>
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int main( int argc, char **argv )
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{
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<a href="ntqapplication.html">TQApplication</a> app( argc, argv );
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<a href="ntqfile.html">TQFile</a> xmlFile( argc == 2 ? argv[1] : "fnord.xml" );
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<a href="qxmlinputsource.html">TQXmlInputSource</a> source( &xmlFile );
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<a href="qxmlsimplereader.html">TQXmlSimpleReader</a> reader;
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<a href="ntqgrid.html">TQGrid</a> * container = new <a href="ntqgrid.html">TQGrid</a>( 3 );
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<a href="ntqlistview.html">TQListView</a> * nameSpace = new <a href="ntqlistview.html">TQListView</a>( container, "table_namespace" );
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StructureParser * handler = new StructureParser( nameSpace );
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<a name="x1977"></a> reader.<a href="qxmlreader.html#setContentHandler">setContentHandler</a>( handler );
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<a name="x1976"></a> reader.<a href="qxmlsimplereader.html#parse">parse</a>( source );
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<a href="ntqlistview.html">TQListView</a> * namespacePrefix = new <a href="ntqlistview.html">TQListView</a>( container,
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"table_namespace_prefix" );
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handler->setListView( namespacePrefix );
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<a name="x1978"></a> reader.<a href="qxmlsimplereader.html#setFeature">setFeature</a>( "http://xml.org/sax/features/namespace-prefixes",
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TRUE );
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<a name="x1975"></a> source.<a href="qxmlinputsource.html#reset">reset</a>();
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reader.<a href="qxmlsimplereader.html#parse">parse</a>( source );
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<a href="ntqlistview.html">TQListView</a> * prefix = new <a href="ntqlistview.html">TQListView</a>( container, "table_prefix");
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handler->setListView( prefix );
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reader.<a href="qxmlsimplereader.html#setFeature">setFeature</a>( "http://xml.org/sax/features/namespaces", FALSE );
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source.<a href="qxmlinputsource.html#reset">reset</a>();
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reader.<a href="qxmlsimplereader.html#parse">parse</a>( source );
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// namespace label
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(void) new <a href="ntqlabel.html">TQLabel</a>(
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"Default:\n"
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"http://xml.org/sax/features/namespaces: TRUE\n"
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"http://xml.org/sax/features/namespace-prefixes: FALSE\n",
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container );
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// namespace prefix label
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(void) new <a href="ntqlabel.html">TQLabel</a>(
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"\n"
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"http://xml.org/sax/features/namespaces: TRUE\n"
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"http://xml.org/sax/features/namespace-prefixes: TRUE\n",
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container );
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// prefix label
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(void) new <a href="ntqlabel.html">TQLabel</a>(
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"\n"
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"http://xml.org/sax/features/namespaces: FALSE\n"
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"http://xml.org/sax/features/namespace-prefixes: TRUE\n",
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container );
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app.<a href="ntqapplication.html#setMainWidget">setMainWidget</a>( container );
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container-><a href="ntqwidget.html#show">show</a>();
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return app.<a href="ntqapplication.html#exec">exec</a>();
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}
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</pre>
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<p>See also <a href="xml-examples.html">TQt XML Examples</a>.
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<!-- eof -->
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<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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