QXmlInputSource Class Reference

The QXmlInputSource class is the source where XML data is read from. More...

#include <qxml.h>

Public Member Functions
	QXmlInputSource ()
	QXmlInputSource (QTextStream &stream)
	QXmlInputSource (QFile &file)
virtual	~QXmlInputSource ()
virtual const QString &	data () const
virtual void	setData (const QString &d)

Private Member Functions
void	readInput (QByteArray &rawData)

Private Attributes
QString	input

Detailed Description

The QXmlInputSource class is the source where XML data is read from.

XML

All subclasses of QXmlReader read the input from this class.

Definition at line 162 of file qxml.h.

Constructor & Destructor Documentation

QXmlInputSource::QXmlInputSource

(

)

Constructs a input source which contains no data.

Definition at line 725 of file qxml.cpp.

{
    input = "";
}

QXmlInputSource::QXmlInputSource

(

QTextStream &

stream

)

Constructs a input source and get the data from the text stream.

Definition at line 733 of file qxml.cpp.

{
    QByteArray rawData;
    if ( stream.device()->isDirectAccess() ) {
        rawData = stream.device()->readAll();
    } else {
        int nread = 0;
        const int bufsize = 512;
        while ( !stream.device()->atEnd() ) {
            rawData.resize( nread + bufsize );
            nread += stream.device()->readBlock( rawData.data()+nread, bufsize );
        }
        rawData.resize( nread );
    }
    readInput( rawData );
}

QXmlInputSource::QXmlInputSource

(

QFile &

file

)

Constructs a input source and get the data from a file. If the file cannot be read the input source is empty.

Definition at line 754 of file qxml.cpp.

{
    if ( !file.open(IO_ReadOnly) ) {
        input = "";
        return;
    }
    QByteArray rawData = file.readAll();
    readInput( rawData );
    file.close();
}

QXmlInputSource::~QXmlInputSource ( )

virtual

Destructor.

Definition at line 768 of file qxml.cpp.

{
}

Member Function Documentation

const QString & QXmlInputSource::data ( ) const

virtual

Returns all the data this input source contains.

Definition at line 717 of file qxml.cpp.

{
    return input;
}

void QXmlInputSource::readInput ( QByteArray &  rawData )

private

Read the XML file from the byte array; try to recoginize the encoding.

Definition at line 784 of file qxml.cpp.

{
    QBuffer buf( rawData );
    buf.open( IO_ReadOnly );
    QTextStream *stream = new QTextStream( &buf );
    QChar tmp;
    // assume UTF8 or UTF16 at first
    stream->setEncoding( QTextStream::UnicodeUTF8 );
    input = "";
    // read the first 5 characters
    for ( int i=0; i<5; i++ ) {
        *stream >> tmp;
        input += tmp;
    }
    // starts the document with an XML declaration?
    if ( input == "<?xml" ) {
        // read the whole XML declaration
        do {
            *stream >> tmp;
            input += tmp;
        } while( tmp != '>' );
        // and try to find out if there is an encoding
        int pos = input.find( "encoding" );
        if ( pos != -1 ) {
            QString encoding;
            do {
                pos++;
                if ( pos > (int)input.length() )
                    goto finished;
            } while( input[pos] != '"' && input[pos] != '\'' );
            pos++;
            while( input[pos] != '"' && input[pos] != '\'' ) {
                encoding += input[pos];
                pos++;
                if ( pos > (int)input.length() )
                    goto finished;
            }
            delete stream;
            stream = new QTextStream( &buf );
            stream->setCodec( QTextCodec::codecForName( encoding.utf8() ) );
            buf.reset();
            input = "";
        }
    }
finished:
    input += stream->read();
    delete stream;
    buf.close();
}

void QXmlInputSource::setData ( const QString &  dat )

virtual

Sets the data of the input source to dat.

Definition at line 775 of file qxml.cpp.

{
    input = dat;
}

Member Data Documentation

QString QXmlInputSource::input

private

Definition at line 176 of file qxml.h.

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The documentation for this class was generated from the following files:

• doxygen-1.8.11/qtools/qxml.h
• doxygen-1.8.11/qtools/qxml.cpp