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<title>A tiny SAX2 parser</title>
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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>A tiny SAX2 parser</h1>
<p>
<p> This example presents a small <a href="xml.html#sax2">SAX2</a>
reader that outputs the names of all elements in an
XML document on the command line. The element names are
indented corresponding to their nesting
<p> This example is thoroughly explained in a
<a href="xml-sax-walkthrough.html">walkthrough.</a>
<p> <hr>
<p> Header file:
<p> <pre>/****************************************************************************
** $Id: qt/structureparser.h 3.3.8 edited Jan 11 14:37 $
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#ifndef STRUCTUREPARSER_H
#define STRUCTUREPARSER_H
#include <<a href="tqxml-h.html">tqxml.h</a>>
class TQString;
class StructureParser : public <a href="tqxmldefaulthandler.html">TQXmlDefaultHandler</a>
{
public:
bool startDocument();
bool startElement( const <a href="ntqstring.html">TQString</a>&, const <a href="ntqstring.html">TQString</a>&, const <a href="ntqstring.html">TQString</a>& ,
const <a href="tqxmlattributes.html">TQXmlAttributes</a>& );
bool endElement( const <a href="ntqstring.html">TQString</a>&, const <a href="ntqstring.html">TQString</a>&, const <a href="ntqstring.html">TQString</a>& );
private:
<a href="ntqstring.html">TQString</a> indent;
};
#endif
</pre>
<p> <hr>
<p> Implementation:
<p> <pre>/****************************************************************************
** $Id: qt/structureparser.cpp 3.3.8 edited Jan 11 14:37 $
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "structureparser.h"
#include <stdio.h>
#include <<a href="qstring-h.html">ntqstring.h</a>>
<a name="x1903"></a>bool StructureParser::<a href="tqxmlcontenthandler.html#startDocument">startDocument</a>()
{
indent = "";
return TRUE;
}
<a name="x1904"></a>bool StructureParser::<a href="tqxmlcontenthandler.html#startElement">startElement</a>( const <a href="ntqstring.html">TQString</a>&, const <a href="ntqstring.html">TQString</a>&,
const <a href="ntqstring.html">TQString</a>& qName,
const <a href="tqxmlattributes.html">TQXmlAttributes</a>& )
{
printf( "%s%s\n", (const char*)indent, (const char*)qName );
indent += " ";
return TRUE;
}
<a name="x1902"></a>bool StructureParser::<a href="tqxmlcontenthandler.html#endElement">endElement</a>( const <a href="ntqstring.html">TQString</a>&, const <a href="ntqstring.html">TQString</a>&, const <a href="ntqstring.html">TQString</a>& )
{
indent.remove( (uint)0, 4 );
return TRUE;
}
</pre>
<p> <hr>
<p> Main:
<p> <pre>/****************************************************************************
** $Id: qt/tagreader.cpp 3.3.8 edited Jan 11 14:37 $
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "structureparser.h"
#include <<a href="qfile-h.html">ntqfile.h</a>>
#include <<a href="tqxml-h.html">tqxml.h</a>>
#include <<a href="qwindowdefs-h.html">ntqwindowdefs.h</a>>
int main( int argc, char **argv )
{
if ( argc < 2 ) {
fprintf( stderr, "Usage: %s <xmlfile> [<xmlfile> ...]\n", argv[0] );
return 1;
}
StructureParser handler;
<a href="tqxmlsimplereader.html">TQXmlSimpleReader</a> reader;
<a name="x1906"></a> reader.<a href="tqxmlreader.html#setContentHandler">setContentHandler</a>( &handler );
for ( int i=1; i < argc; i++ ) {
<a href="ntqfile.html">TQFile</a> xmlFile( argv[i] );
<a href="tqxmlinputsource.html">TQXmlInputSource</a> source( &xmlFile );
<a name="x1905"></a> reader.<a href="tqxmlsimplereader.html#parse">parse</a>( source );
}
return 0;
}
</pre>
<p>See also <a href="xml-examples.html">TQt XML Examples</a>.
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