diff options
author | Thiago Macieira <thiago.macieira@intel.com> | 2017-12-12 18:32:19 -0800 |
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committer | Thiago Macieira <thiago.macieira@intel.com> | 2018-01-26 20:59:50 +0000 |
commit | a6b697ca13945a174cff9f3e9b1af1cf61c0bea5 (patch) | |
tree | 78d5fad97ff8e89f079df29cc5a75b4e7197bfc7 /src/corelib/serialization/qtextstream_p.h | |
parent | 657894624521b580f59ff5f58b9c0e9be159dc1c (diff) |
Create corelib/serialization and move existing file formats into it
This is in preparation to adding CBOR support. We don't need yet another
dir for CBOR and placing it in src/corelib/json is just wrong.
Change-Id: I9741f017961b410c910dfffd14ffb9d870340fa6
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Diffstat (limited to 'src/corelib/serialization/qtextstream_p.h')
-rw-r--r-- | src/corelib/serialization/qtextstream_p.h | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/src/corelib/serialization/qtextstream_p.h b/src/corelib/serialization/qtextstream_p.h new file mode 100644 index 0000000000..a642beddc4 --- /dev/null +++ b/src/corelib/serialization/qtextstream_p.h @@ -0,0 +1,200 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Copyright (C) 2016 Intel Corporation. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtCore 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QTEXTSTREAM_P_H +#define QTEXTSTREAM_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 <QtCore/private/qglobal_p.h> +#include "qtextstream.h" +#ifndef QT_NO_TEXTCODEC +#include "qtextcodec.h" +#endif + +QT_BEGIN_NAMESPACE + +#ifndef QT_NO_QOBJECT +class QDeviceClosedNotifier : public QObject +{ + Q_OBJECT +public: + inline QDeviceClosedNotifier() + { } + + inline void setupDevice(QTextStream *stream, QIODevice *device) + { + disconnect(); + if (device) + connect(device, SIGNAL(aboutToClose()), this, SLOT(flushStream())); + this->stream = stream; + } + +public Q_SLOTS: + inline void flushStream() { stream->flush(); } + +private: + QTextStream *stream; +}; +#endif + +class QTextStreamPrivate +{ + Q_DECLARE_PUBLIC(QTextStream) +public: + // streaming parameters + class Params + { + public: + void reset(); + + int realNumberPrecision; + int integerBase; + int fieldWidth; + QChar padChar; + QTextStream::FieldAlignment fieldAlignment; + QTextStream::RealNumberNotation realNumberNotation; + QTextStream::NumberFlags numberFlags; + }; + + QTextStreamPrivate(QTextStream *q_ptr); + ~QTextStreamPrivate(); + void reset(); + + // device + QIODevice *device; +#ifndef QT_NO_QOBJECT + QDeviceClosedNotifier deviceClosedNotifier; +#endif + + // string + QString *string; + int stringOffset; + QIODevice::OpenMode stringOpenMode; + +#ifndef QT_NO_TEXTCODEC + // codec + QTextCodec *codec; + QTextCodec::ConverterState readConverterState; + QTextCodec::ConverterState writeConverterState; + QTextCodec::ConverterState *readConverterSavedState; +#endif + + QString writeBuffer; + QString readBuffer; + int readBufferOffset; + int readConverterSavedStateOffset; //the offset between readBufferStartDevicePos and that start of the buffer + qint64 readBufferStartDevicePos; + + Params params; + + // status + QTextStream::Status status; + QLocale locale; + QTextStream *q_ptr; + + int lastTokenSize; + bool deleteDevice; +#ifndef QT_NO_TEXTCODEC + bool autoDetectUnicode; +#endif + + // i/o + enum TokenDelimiter { + Space, + NotSpace, + EndOfLine + }; + + QString read(int maxlen); + bool scan(const QChar **ptr, int *tokenLength, + int maxlen, TokenDelimiter delimiter); + inline const QChar *readPtr() const; + inline void consumeLastToken(); + inline void consume(int nchars); + void saveConverterState(qint64 newPos); + void restoreToSavedConverterState(); + + // Return value type for getNumber() + enum NumberParsingStatus { + npsOk, + npsMissingDigit, + npsInvalidPrefix + }; + + inline bool getChar(QChar *ch); + inline void ungetChar(QChar ch); + NumberParsingStatus getNumber(qulonglong *l); + bool getReal(double *f); + + inline void write(const QString &data) { write(data.begin(), data.length()); } + inline void write(QChar ch); + void write(const QChar *data, int len); + void write(QLatin1String data); + void writePadding(int len); + inline void putString(const QString &ch, bool number = false) { putString(ch.constData(), ch.length(), number); } + void putString(const QChar *data, int len, bool number = false); + void putString(QLatin1String data, bool number = false); + inline void putChar(QChar ch); + void putNumber(qulonglong number, bool negative); + + struct PaddingResult { + int left, right; + }; + PaddingResult padding(int len) const; + + // buffers + bool fillReadBuffer(qint64 maxBytes = -1); + void resetReadBuffer(); + void flushWriteBuffer(); +}; + +QT_END_NAMESPACE + +#endif // QTEXTSTREAM_P_H |