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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QTEXTSTREAM_H
#define QTEXTSTREAM_H
#include <QtCore/qiodevicebase.h>
#include <QtCore/qchar.h>
#include <QtCore/qscopedpointer.h>
#include <QtCore/qstringconverter_base.h>
#include <stdio.h>
#ifdef Status
#error qtextstream.h must be included before any header file that defines Status
#endif
QT_BEGIN_NAMESPACE
class QIODevice;
class QLocale;
class QString;
class QTextStreamPrivate;
class Q_CORE_EXPORT QTextStream : public QIODeviceBase
{
Q_DECLARE_PRIVATE(QTextStream)
public:
enum RealNumberNotation {
SmartNotation,
FixedNotation,
ScientificNotation
};
enum FieldAlignment {
AlignLeft,
AlignRight,
AlignCenter,
AlignAccountingStyle
};
enum Status {
Ok,
ReadPastEnd,
ReadCorruptData,
WriteFailed
};
enum NumberFlag {
ShowBase = 0x1,
ForcePoint = 0x2,
ForceSign = 0x4,
UppercaseBase = 0x8,
UppercaseDigits = 0x10
};
Q_DECLARE_FLAGS(NumberFlags, NumberFlag)
QTextStream();
explicit QTextStream(QIODevice *device);
explicit QTextStream(FILE *fileHandle, OpenMode openMode = ReadWrite);
explicit QTextStream(QString *string, OpenMode openMode = ReadWrite);
explicit QTextStream(QByteArray *array, OpenMode openMode = ReadWrite);
explicit QTextStream(const QByteArray &array, OpenMode openMode = ReadOnly);
virtual ~QTextStream();
void setEncoding(QStringConverter::Encoding encoding);
QStringConverter::Encoding encoding() const;
void setAutoDetectUnicode(bool enabled);
bool autoDetectUnicode() const;
void setGenerateByteOrderMark(bool generate);
bool generateByteOrderMark() const;
void setLocale(const QLocale &locale);
QLocale locale() const;
void setDevice(QIODevice *device);
QIODevice *device() const;
void setString(QString *string, OpenMode openMode = ReadWrite);
QString *string() const;
Status status() const;
void setStatus(Status status);
void resetStatus();
bool atEnd() const;
void reset();
void flush();
bool seek(qint64 pos);
qint64 pos() const;
void skipWhiteSpace();
QString readLine(qint64 maxlen = 0);
bool readLineInto(QString *line, qint64 maxlen = 0);
QString readAll();
QString read(qint64 maxlen);
void setFieldAlignment(FieldAlignment alignment);
FieldAlignment fieldAlignment() const;
void setPadChar(QChar ch);
QChar padChar() const;
void setFieldWidth(int width);
int fieldWidth() const;
void setNumberFlags(NumberFlags flags);
NumberFlags numberFlags() const;
void setIntegerBase(int base);
int integerBase() const;
void setRealNumberNotation(RealNumberNotation notation);
RealNumberNotation realNumberNotation() const;
void setRealNumberPrecision(int precision);
int realNumberPrecision() const;
QTextStream &operator>>(QChar &ch);
QTextStream &operator>>(char &ch);
QTextStream &operator>>(char16_t &ch)
{ QChar c; *this >> c; ch = c.unicode(); return *this; }
QTextStream &operator>>(signed short &i);
QTextStream &operator>>(unsigned short &i);
QTextStream &operator>>(signed int &i);
QTextStream &operator>>(unsigned int &i);
QTextStream &operator>>(signed long &i);
QTextStream &operator>>(unsigned long &i);
QTextStream &operator>>(qlonglong &i);
QTextStream &operator>>(qulonglong &i);
QTextStream &operator>>(float &f);
QTextStream &operator>>(double &f);
QTextStream &operator>>(QString &s);
QTextStream &operator>>(QByteArray &array);
QTextStream &operator>>(char *c);
QTextStream &operator<<(QChar ch);
QTextStream &operator<<(char ch);
QTextStream &operator<<(char16_t ch) { return *this << QChar(ch); }
QTextStream &operator<<(signed short i);
QTextStream &operator<<(unsigned short i);
QTextStream &operator<<(signed int i);
QTextStream &operator<<(unsigned int i);
QTextStream &operator<<(signed long i);
QTextStream &operator<<(unsigned long i);
QTextStream &operator<<(qlonglong i);
QTextStream &operator<<(qulonglong i);
QTextStream &operator<<(float f);
QTextStream &operator<<(double f);
QTextStream &operator<<(const QString &s);
QTextStream &operator<<(QStringView s);
QTextStream &operator<<(QLatin1StringView s);
QTextStream &operator<<(const QByteArray &array);
QTextStream &operator<<(const char *c);
QTextStream &operator<<(const void *ptr);
private:
Q_DISABLE_COPY(QTextStream)
friend class QDebugStateSaverPrivate;
friend class QDebug;
QScopedPointer<QTextStreamPrivate> d_ptr;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QTextStream::NumberFlags)
/*****************************************************************************
QTextStream manipulators
*****************************************************************************/
typedef QTextStream & (*QTextStreamFunction)(QTextStream &);// manipulator function
typedef void (QTextStream::*QTSMFI)(int); // manipulator w/int argument
typedef void (QTextStream::*QTSMFC)(QChar); // manipulator w/QChar argument
class Q_CORE_EXPORT QTextStreamManipulator
{
public:
constexpr QTextStreamManipulator(QTSMFI m, int a) noexcept : mf(m), mc(nullptr), arg(a), ch() {}
constexpr QTextStreamManipulator(QTSMFC m, QChar c) noexcept : mf(nullptr), mc(m), arg(-1), ch(c) {}
void exec(QTextStream &s) { if (mf) { (s.*mf)(arg); } else { (s.*mc)(ch); } }
private:
QTSMFI mf; // QTextStream member function
QTSMFC mc; // QTextStream member function
int arg; // member function argument
QChar ch;
};
inline QTextStream &operator>>(QTextStream &s, QTextStreamFunction f)
{ return (*f)(s); }
inline QTextStream &operator<<(QTextStream &s, QTextStreamFunction f)
{ return (*f)(s); }
inline QTextStream &operator<<(QTextStream &s, QTextStreamManipulator m)
{ m.exec(s); return s; }
namespace Qt {
Q_CORE_EXPORT QTextStream &bin(QTextStream &s);
Q_CORE_EXPORT QTextStream &oct(QTextStream &s);
Q_CORE_EXPORT QTextStream &dec(QTextStream &s);
Q_CORE_EXPORT QTextStream &hex(QTextStream &s);
Q_CORE_EXPORT QTextStream &showbase(QTextStream &s);
Q_CORE_EXPORT QTextStream &forcesign(QTextStream &s);
Q_CORE_EXPORT QTextStream &forcepoint(QTextStream &s);
Q_CORE_EXPORT QTextStream &noshowbase(QTextStream &s);
Q_CORE_EXPORT QTextStream &noforcesign(QTextStream &s);
Q_CORE_EXPORT QTextStream &noforcepoint(QTextStream &s);
Q_CORE_EXPORT QTextStream &uppercasebase(QTextStream &s);
Q_CORE_EXPORT QTextStream &uppercasedigits(QTextStream &s);
Q_CORE_EXPORT QTextStream &lowercasebase(QTextStream &s);
Q_CORE_EXPORT QTextStream &lowercasedigits(QTextStream &s);
Q_CORE_EXPORT QTextStream &fixed(QTextStream &s);
Q_CORE_EXPORT QTextStream &scientific(QTextStream &s);
Q_CORE_EXPORT QTextStream &left(QTextStream &s);
Q_CORE_EXPORT QTextStream &right(QTextStream &s);
Q_CORE_EXPORT QTextStream ¢er(QTextStream &s);
Q_CORE_EXPORT QTextStream &endl(QTextStream &s);
Q_CORE_EXPORT QTextStream &flush(QTextStream &s);
Q_CORE_EXPORT QTextStream &reset(QTextStream &s);
Q_CORE_EXPORT QTextStream &bom(QTextStream &s);
Q_CORE_EXPORT QTextStream &ws(QTextStream &s);
} // namespace Qt
inline QTextStreamManipulator qSetFieldWidth(int width)
{
QTSMFI func = &QTextStream::setFieldWidth;
return QTextStreamManipulator(func,width);
}
inline QTextStreamManipulator qSetPadChar(QChar ch)
{
QTSMFC func = &QTextStream::setPadChar;
return QTextStreamManipulator(func, ch);
}
inline QTextStreamManipulator qSetRealNumberPrecision(int precision)
{
QTSMFI func = &QTextStream::setRealNumberPrecision;
return QTextStreamManipulator(func, precision);
}
QT_END_NAMESPACE
#endif // QTEXTSTREAM_H
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