1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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 <private/qnamepool_p.h>
#include <private/qabstractxmlreceiver_p.h>
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
#endif
|
