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// Copyright (C) 2018 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
// Qt-Security score:critical reason:data-parser
// ### de-inline more functions
#ifndef QTEXTCODEC_H
#define QTEXTCODEC_H
#include <QtCore/qlist.h>
#include <QtCore/qstringconverter.h>
#include <QtCore5Compat/qcore5global.h>
QT_REQUIRE_CONFIG(textcodec);
QT_BEGIN_NAMESPACE
class QTextDecoder;
class QTextEncoder;
class Q_CORE5COMPAT_EXPORT QTextCodec : public QStringConverterBase
{
Q_DISABLE_COPY(QTextCodec)
public:
using ConversionFlags = QStringConverterBase::Flags;
using ConverterState = QStringConverterBase::State;
static constexpr Flag ConvertInvalidToNull = Flag::ConvertInvalidToNull;
static constexpr Flag DefaultConversion = Flag::WriteBom;
static constexpr Flag IgnoreHeader = Flag::ConvertInitialBom;
static QTextCodec* codecForName(const QByteArray &name);
static QTextCodec* codecForName(const char *name) { return codecForName(QByteArray(name)); }
static QTextCodec* codecForMib(int mib);
static QList<QByteArray> availableCodecs();
static QList<int> availableMibs();
static QTextCodec* codecForLocale();
static void setCodecForLocale(QTextCodec *c);
static QTextCodec *codecForTr() { return codecForMib(106); /* Utf8 */ }
static QTextCodec *codecForHtml(const QByteArray &ba);
static QTextCodec *codecForHtml(const QByteArray &ba, QTextCodec *defaultCodec);
static QTextCodec *codecForUtfText(const QByteArray &ba);
static QTextCodec *codecForUtfText(const QByteArray &ba, QTextCodec *defaultCodec);
bool canEncode(QChar) const;
bool canEncode(const QString&) const;
bool canEncode(QStringView) const;
QString toUnicode(const QByteArray&) const;
QString toUnicode(const char* chars) const;
QByteArray fromUnicode(const QString& uc) const;
QByteArray fromUnicode(QStringView uc) const;
QString toUnicode(const char *in, int length, ConverterState *state = nullptr) const
{
if (in == nullptr)
return {};
if (length <= 0)
return QLatin1String("");
return convertToUnicode(in, length, state);
}
QByteArray fromUnicode(const QChar *in, int length, ConverterState *state = nullptr) const
{
if (in == nullptr)
return {};
if (length <= 0)
return QByteArray("");
return convertFromUnicode(in, length, state);
}
QTextDecoder* makeDecoder(ConversionFlags flags = DefaultConversion) const;
QTextEncoder* makeEncoder(ConversionFlags flags = DefaultConversion) const;
virtual QByteArray name() const = 0;
virtual QList<QByteArray> aliases() const;
virtual int mibEnum() const = 0;
protected:
virtual QString convertToUnicode(const char *in, int length, ConverterState *state) const = 0;
virtual QByteArray convertFromUnicode(const QChar *in, int length, ConverterState *state) const = 0;
QTextCodec();
virtual ~QTextCodec();
private:
friend struct QTextCodecData;
};
class Q_CORE5COMPAT_EXPORT QTextEncoder
{
Q_DISABLE_COPY(QTextEncoder)
public:
explicit QTextEncoder(const QTextCodec *codec)
: c(codec), state(QTextCodec::DefaultConversion) {}
explicit QTextEncoder(const QTextCodec *codec, QTextCodec::ConversionFlags flags);
~QTextEncoder();
QByteArray fromUnicode(const QString& str);
QByteArray fromUnicode(QStringView str);
QByteArray fromUnicode(const QChar *uc, int len);
bool hasFailure() const;
private:
const QTextCodec *c = nullptr;
QTextCodec::ConverterState state;
};
class Q_CORE5COMPAT_EXPORT QTextDecoder
{
Q_DISABLE_COPY(QTextDecoder)
public:
explicit QTextDecoder(const QTextCodec *codec)
: c(codec), state(QTextCodec::DefaultConversion) {}
explicit QTextDecoder(const QTextCodec *codec, QTextCodec::ConversionFlags flags);
~QTextDecoder();
QString toUnicode(const char* chars, int len);
QString toUnicode(const QByteArray &ba);
void toUnicode(QString *target, const char *chars, int len);
bool hasFailure() const;
bool needsMoreData() const;
private:
const QTextCodec *c = nullptr;
QTextCodec::ConverterState state;
};
namespace Qt
{
Q_CORE5COMPAT_EXPORT QTextCodec *codecForHtml(const QByteArray &ba);
}
QT_END_NAMESPACE
#endif // QTEXTCODEC_H