diff options
author | Lars Knoll <lars.knoll@nokia.com> | 2012-01-18 10:12:50 +0100 |
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committer | Qt by Nokia <qt-info@nokia.com> | 2012-01-24 15:28:20 +0100 |
commit | 37a7b035f8feb248d25741b22e22ffb0ec7463d6 (patch) | |
tree | 8f323ed9ef5554d8debae92ba0a95f05d6162d3b /src/corelib/json/qjsonparser_p.h | |
parent | 4b8ceb41aed352f10d36db5284453f425dbc5f3f (diff) |
Import json support from playground/qtbinaryjson
This imports the JSON support for Qt 5 from
playground/qtbinaryjson.
It adds a fast, fully compliant json parser, a
convenient C++ API, conversion to and from
QVariants and a binary format for JSON that is
extremely fast to use together with the C++ API.
Change-Id: If9e3a21a4241d388d0abaa446b6824f9cc6edb1c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/corelib/json/qjsonparser_p.h')
-rw-r--r-- | src/corelib/json/qjsonparser_p.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/corelib/json/qjsonparser_p.h b/src/corelib/json/qjsonparser_p.h new file mode 100644 index 0000000000..ab8c82fa04 --- /dev/null +++ b/src/corelib/json/qjsonparser_p.h @@ -0,0 +1,118 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtCore 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. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QJSONPARSER_P_H +#define QJSONPARSER_P_H + +// +// 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. +// + +#include <qjsondocument.h> +#include <qvarlengtharray.h> + +QT_BEGIN_NAMESPACE + +namespace QJsonPrivate { + +class Parser +{ +public: + Parser(const char *json, int length); + + QJsonDocument parse(); + + class ParsedObject + { + public: + ParsedObject(Parser *p, int pos) : parser(p), objectPosition(pos) {} + void insert(uint offset); + + Parser *parser; + int objectPosition; + QVarLengthArray<uint> offsets; + + inline QJsonPrivate::Entry *entryAt(int i) const { + return reinterpret_cast<QJsonPrivate::Entry *>(parser->data + objectPosition + offsets[i]); + } + }; + + +private: + inline bool eatSpace(); + inline char nextToken(); + + bool parseObject(); + bool parseArray(); + bool parseMember(int baseOffset); + bool parseString(bool *latin1); + bool parseValue(QJsonPrivate::Value *val, int baseOffset); + bool parseNumber(QJsonPrivate::Value *val, int baseOffset); + const char *json; + const char *end; + + char *data; + int dataLength; + int current; + + inline int reserveSpace(int space) { + if (current + space >= dataLength) { + dataLength = 2*dataLength + space; + data = (char *)realloc(data, dataLength); + } + int pos = current; + current += space; + return pos; + } +}; + +} + +QT_END_NAMESPACE + +#endif |