/**************************************************************************** | |
** | |
** Copyright (C) 2011 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. | |
** | |
** $QT_BEGIN_LICENSE:LGPL$ | |
** GNU Lesser General Public License Usage | |
** 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. | |
** | |
** GNU General Public License Usage | |
** Alternatively, this file may be used under the terms of the GNU General | |
** Public License version 3.0 as published by the Free Software Foundation | |
** and appearing in the file LICENSE.GPL included in the packaging of this | |
** file. Please review the following information to ensure the GNU General | |
** Public License version 3.0 requirements will be met: | |
** http://www.gnu.org/copyleft/gpl.html. | |
** | |
** Other Usage | |
** Alternatively, this file may be used in accordance with the terms and | |
** conditions contained in a signed written agreement between you and Nokia. | |
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** $QT_END_LICENSE$ | |
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****************************************************************************/ | |
// | |
// 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 |