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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef QXMLSERIALIZER_P_H
#define QXMLSERIALIZER_P_H
#include <QtCore/QIODevice>
#include <QtCore/QStack>
#include <QtCore/QTextCodec>
#include <QtXmlPatterns/QXmlQuery>
#include <QtXmlPatterns/QXmlNamePool>
#include <QtXmlPatterns/QXmlSerializer>
#include "qnamepool_p.h"
#include "qabstractxmlreceiver_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QXmlSerializerPrivate : public QAbstractXmlReceiverPrivate
{
public:
QXmlSerializerPrivate(const QXmlQuery &q,
QIODevice *outputDevice);
QStack<QPair<QXmlName, bool> > hasClosedElement;
bool isPreviousAtomic;
QXmlSerializer::State state;
const QPatternist::NamePool::Ptr np;
/**
* This member worries me a bit. We never use it but nevertheless
* it is pushed and pops linear to startElement() and endElement().
* An optimization would be to at least merge it with hasClosedElement,
* but even better to push it on demand. That is, namespaceBinding()
* pushes it up to the tree depth first when it is needed.
*/
QStack<QVector<QXmlName> > namespaces;
QIODevice * device;
const QTextCodec * codec;
QTextCodec::ConverterState converterState;
/**
* Name cache. Since encoding QStrings are rather expensive
* operations to do, and we on top of that would have to do
* it each time a name appears, we here map names to their
* encoded equivalents.
*
* This means that when writing out large documents, the serialization
* of names after a while is reduced to a hash lookup and passing an
* existing byte array.
*
* We use QXmlName::Code as key as opposed to merely QName, because the
* prefix is of significance.
*/
QHash<QXmlName::Code, QByteArray> nameCache;
const QXmlQuery query;
inline void write(const char c);
private:
enum Constants
{
EstimatedTreeDepth = 10,
/**
* We use a high count to avoid rehashing. We can afford it since we
* only allocate one hash for this.
*/
EstimatedNameCount = 60
};
};
void QXmlSerializerPrivate::write(const char c)
{
device->putChar(c);
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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