qstring.h

奇趣公司比较新的qt/emd版本

{ return qStringComparisonHelper(*this, s); }
inline bool QString::operator!=(const char *s) const
{ return !qStringComparisonHelper(*this, s); }
inline bool QString::operator<(const char *s) const
{ return *this < QString::fromAscii(s); }
inline bool QString::operator>(const char *s) const
{ return *this > QString::fromAscii(s); }
inline bool QString::operator<=(const char *s) const
{ return *this <= QString::fromAscii(s); }
inline bool QString::operator>=(const char *s) const
{ return *this >= QString::fromAscii(s); }

inline QT_ASCII_CAST_WARN bool operator==(const char *s1, const QString &s2)
{ return qStringComparisonHelper(s2, s1); }
inline QT_ASCII_CAST_WARN bool operator!=(const char *s1, const QString &s2)
{ return !qStringComparisonHelper(s2, s1); }
inline QT_ASCII_CAST_WARN bool operator<(const char *s1, const QString &s2)
{ return (QString::fromAscii(s1) < s2); }
inline QT_ASCII_CAST_WARN bool operator>(const char *s1, const QString &s2)
{ return (QString::fromAscii(s1) > s2); }
inline QT_ASCII_CAST_WARN bool operator<=(const char *s1, const QString &s2)
{ return (QString::fromAscii(s1) <= s2); }
inline QT_ASCII_CAST_WARN bool operator>=(const char *s1, const QString &s2)
{ return (QString::fromAscii(s1) >= s2); }

inline QT_ASCII_CAST_WARN bool operator==(const char *s1, const QLatin1String &s2)
{ return QString::fromAscii(s1) == s2; }
inline QT_ASCII_CAST_WARN bool operator!=(const char *s1, const QLatin1String &s2)
{ return QString::fromAscii(s1) != s2; }
inline QT_ASCII_CAST_WARN bool operator<(const char *s1, const QLatin1String &s2)
{ return (QString::fromAscii(s1) < s2); }
inline QT_ASCII_CAST_WARN bool operator>(const char *s1, const QLatin1String &s2)
{ return (QString::fromAscii(s1) > s2); }
inline QT_ASCII_CAST_WARN bool operator<=(const char *s1, const QLatin1String &s2)
{ return (QString::fromAscii(s1) <= s2); }
inline QT_ASCII_CAST_WARN bool operator>=(const char *s1, const QLatin1String &s2)
{ return (QString::fromAscii(s1) >= s2); }

inline bool operator==(const QLatin1String &s1, const QLatin1String &s2)
{ return (qstrcmp(s1.latin1(), s2.latin1()) == 0); }
inline bool operator!=(const QLatin1String &s1, const QLatin1String &s2)
{ return (qstrcmp(s1.latin1(), s2.latin1()) != 0); }
inline bool operator<(const QLatin1String &s1, const QLatin1String &s2)
{ return (qstrcmp(s1.latin1(), s2.latin1()) < 0); }
inline bool operator<=(const QLatin1String &s1, const QLatin1String &s2)
{ return (qstrcmp(s1.latin1(), s2.latin1()) <= 0); }
inline bool operator>(const QLatin1String &s1, const QLatin1String &s2)
{ return (qstrcmp(s1.latin1(), s2.latin1()) > 0); }
inline bool operator>=(const QLatin1String &s1, const QLatin1String &s2)
{ return (qstrcmp(s1.latin1(), s2.latin1()) >= 0); }


inline bool QString::operator==(const QByteArray &s) const
{ return qStringComparisonHelper(*this, s.constData()); }
inline bool QString::operator!=(const QByteArray &s) const
{ return !qStringComparisonHelper(*this, s.constData()); }

inline bool QByteArray::operator==(const QString &s) const
{ return qStringComparisonHelper(s, constData()); }
inline bool QByteArray::operator!=(const QString &s) const
{ return !qStringComparisonHelper(s, constData()); }
inline bool QByteArray::operator<(const QString &s) const
{ return QString::fromAscii(constData(), size()) < s; }
inline bool QByteArray::operator>(const QString &s) const
{ return QString::fromAscii(constData(), size()) > s; }
inline bool QByteArray::operator<=(const QString &s) const
{ return QString::fromAscii(constData(), size()) <= s; }
inline bool QByteArray::operator>=(const QString &s) const
{ return QString::fromAscii(constData(), size()) >= s; }
#endif   // QT_NO_CAST_FROM_ASCII

#ifndef QT_NO_CAST_TO_ASCII
inline QByteArray &QByteArray::append(const QString &s)
{ return append(s.toAscii()); }
inline QByteArray &QByteArray::insert(int i, const QString &s)
{ return insert(i, s.toAscii()); }
inline QByteArray &QByteArray::replace(char c, const QString &after)
{ return replace(c, after.toAscii()); }
inline QByteArray &QByteArray::replace(const QString &before, const char *after)
{ return replace(before.toAscii(), after); }
inline QByteArray &QByteArray::replace(const QString &before, const QByteArray &after)
{ return replace(before.toAscii(), after); }
inline QByteArray &QByteArray::operator+=(const QString &s)
{ return operator+=(s.toAscii()); }
inline int QByteArray::indexOf(const QString &s, int from) const
{ return indexOf(s.toAscii(), from); }
inline int QByteArray::lastIndexOf(const QString &s, int from) const
{ return lastIndexOf(s.toAscii(), from); }
#  ifdef QT3_SUPPORT
inline int QByteArray::find(const QString &s, int from) const
{ return indexOf(s.toAscii(), from); }
inline int QByteArray::findRev(const QString &s, int from) const
{ return lastIndexOf(s.toAscii(), from); }
#  endif // QT3_SUPPORT
#endif // QT_NO_CAST_TO_ASCII

inline const QString operator+(const QString &s1, const QString &s2)
{ QString t(s1); t += s2; return t; }
inline const QString operator+(const QString &s1, QChar s2)
{ QString t(s1); t += s2; return t; }
inline const QString operator+(QChar s1, const QString &s2)
{ QString t(s1); t += s2; return t; }
#ifndef QT_NO_CAST_FROM_ASCII
inline QT_ASCII_CAST_WARN const QString operator+(const QString &s1, const char *s2)
{ QString t(s1); t += QString::fromAscii(s2); return t; }
inline QT_ASCII_CAST_WARN const QString operator+(const char *s1, const QString &s2)
{ QString t = QString::fromAscii(s1); t += s2; return t; }
inline QT_ASCII_CAST_WARN const QString operator+(char c, const QString &s)
{ QString t = s; t.prepend(QChar::fromAscii(c)); return t; }
inline QT_ASCII_CAST_WARN const QString operator+(const QString &s, char c)
{ QString t = s; t += QChar::fromAscii(c); return t; }
inline QT_ASCII_CAST_WARN const QString operator+(const QByteArray &ba, const QString &s)
{ QString t = QString::fromAscii(ba.constData(), qstrnlen(ba.constData(), ba.size())); t += s; return t; }
inline QT_ASCII_CAST_WARN const QString operator+(const QString &s, const QByteArray &ba)
{ QString t(s); t += QString::fromAscii(ba.constData(), qstrnlen(ba.constData(), ba.size())); return t; }
#endif

#ifndef QT_NO_STL
inline std::string QString::toStdString() const
{ const QByteArray asc = toAscii(); return std::string(asc.constData(), asc.length()); }

inline QString QString::fromStdString(const std::string &s)
{ return fromAscii(s.data(), int(s.size())); }

# ifndef QT_NO_STL_WCHAR
inline QStdWString QString::toStdWString() const
{
    QStdWString str;
    str.resize(length());

#if defined(_MSC_VER) && _MSC_VER >= 1400
    // VS2005 crashes if the string is empty
    if (!length())
        return str;
#endif

    str.resize(toWCharArray(&(*str.begin())));
    return str;
}
inline QString QString::fromStdWString(const QStdWString &s)
{ return fromWCharArray(s.data(), int(s.size())); }
# endif
#endif

#ifdef QT3_SUPPORT
inline QChar &QString::ref(uint i)
{
    if (int(i) > d->size || d->ref != 1)
        resize(qMax(int(i), d->size));
    return reinterpret_cast<QChar&>(d->data[i]);
}
#endif

#ifndef QT_NO_DATASTREAM
Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QString &);
Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QString &);
#endif

#ifdef QT3_SUPPORT
class QConstString : public QString
{
public:
    inline QT3_SUPPORT_CONSTRUCTOR QConstString(const QChar *unicode, int size)
        :QString(unicode, size){} // cannot use fromRawData() due to changed semantics
    inline QT3_SUPPORT const QString &string() const { return *this; }
};
#endif

Q_DECLARE_TYPEINFO(QString, Q_MOVABLE_TYPE);
Q_DECLARE_SHARED(QString)
Q_DECLARE_OPERATORS_FOR_FLAGS(QString::SectionFlags)

#if defined(Q_OS_WIN32)
extern Q_CORE_EXPORT QByteArray qt_winQString2MB(const QString& s, int len=-1);
extern Q_CORE_EXPORT QByteArray qt_winQString2MB(const QChar *ch, int len);
extern Q_CORE_EXPORT QString qt_winMB2QString(const char* mb, int len=-1);
#endif


class Q_CORE_EXPORT QStringRef {
    const QString *m_string;
    int m_position;
    int m_size;
public:
    inline QStringRef():m_string(0), m_position(0), m_size(0){}
    inline QStringRef(const QString *string, int position, int size);
    inline QStringRef(const QString *string);
    inline QStringRef(const QStringRef &other)
        :m_string(other.m_string), m_position(other.m_position), m_size(other.m_size)
        {}

    inline ~QStringRef(){}
    inline const QString *string() const { return m_string; }
    inline int position() const { return m_position; }
    inline int size() const { return m_size; }
    inline int count() const { return m_size; }
    inline int length() const { return m_size; }

    inline QStringRef &operator=(const QStringRef &other) {
        m_string = other.m_string; m_position = other.m_position;
        m_size = other.m_size; return *this;
    }

    inline QStringRef &operator=(const QString *string);

    inline const QChar *unicode() const {
        if (!m_string)
            return reinterpret_cast<const QChar *>(QString::shared_null.data);
        return m_string->unicode() + m_position;
    }
    inline const QChar *data() const { return unicode(); }
    inline const QChar *constData() const {  return unicode(); }

    inline void clear() { m_string = 0; m_position = m_size = 0; }
    QString toString() const;
    inline bool isEmpty() const { return m_size == 0; }
    inline bool isNull() const { return m_string == 0 || m_string->isNull(); }

    QStringRef appendTo(QString *string) const;

    inline const QChar at(int i) const
        { Q_ASSERT(i >= 0 && i < size()); return m_string->at(i + m_position); }

};

inline QStringRef &QStringRef::operator=(const QString *aString)
{ m_string = aString; m_position = 0; m_size = aString?aString->size():0; return *this; }

inline QStringRef::QStringRef(const QString *aString, int aPosition, int aSize)
        :m_string(aString), m_position(aPosition), m_size(aSize){}

inline QStringRef::QStringRef(const QString *aString)
    :m_string(aString), m_position(0), m_size(aString?aString->size() : 0){}

Q_CORE_EXPORT bool operator==(const QStringRef &s1,const QStringRef &s2);
inline bool operator!=(const QStringRef &s1,const QStringRef &s2)
{ return !(s1 == s2); }
Q_CORE_EXPORT bool operator==(const QString &s1,const QStringRef &s2);
inline bool operator!=(const QString &s1,const QStringRef &s2)
{ return !(s1 == s2); }
inline bool operator==(const QStringRef &s1,const QString &s2)
{ return s2 == s1; }
inline bool operator!=(const QStringRef &s1,const QString &s2)
{ return s2 != s1; }
Q_CORE_EXPORT bool operator==(const QLatin1String &s1, const QStringRef &s2);
inline bool operator!=(const QLatin1String &s1,const QStringRef &s2)
{ return !(s1 == s2); }
inline bool operator==(const QStringRef &s1,const QLatin1String &s2)
{ return s2 == s1; }
inline bool operator!=(const QStringRef &s1,const QLatin1String &s2)
{ return s2 != s1; }

Q_CORE_EXPORT bool operator<(const QStringRef &s1,const QStringRef &s2);
inline bool operator>(const QStringRef &s1, const QStringRef &s2)
{ return s2 < s1; }
inline bool operator<=(const QStringRef &s1, const QStringRef &s2)
{ return !(s1 > s2); }
inline bool operator>=(const QStringRef &s1, const QStringRef &s2)
{ return !(s1 < s2); }

inline bool qStringComparisonHelper(const QStringRef &s1, const char *s2)
{
#  ifndef QT_NO_TEXTCODEC
    if (QString::codecForCStrings) return (s1 == QString::fromAscii(s2));
#  endif
    return (s1 == QLatin1String(s2));
}

inline QT_ASCII_CAST_WARN bool operator==(const char *s1, const QStringRef &s2)
{ return qStringComparisonHelper(s2, s1); }
inline QT_ASCII_CAST_WARN bool operator==(const QStringRef &s1, const char *s2)
{ return qStringComparisonHelper(s1, s2); }
inline QT_ASCII_CAST_WARN bool operator!=(const char *s1, const QStringRef &s2)
{ return !qStringComparisonHelper(s2, s1); }
inline QT_ASCII_CAST_WARN bool operator!=(const QStringRef &s1, const char *s2)
{ return !qStringComparisonHelper(s1, s2); }


QT_END_HEADER

#endif // QSTRING_H