qstring.h

奇趣公司比较新的qt/emd版本

    static Data shared_empty;
    Data *d;
    QString(Data *dd, int /*dummy*/) : d(dd) {}
#ifndef QT_NO_TEXTCODEC
    static QTextCodec *codecForCStrings;
#endif
    static int grow(int);
    static void free(Data *);
    void realloc();
    void realloc(int alloc);
    void expand(int i);
    void updateProperties() const;
    QString multiArg(int numArgs, const QString **args) const;
    static Data *fromLatin1_helper(const char *str, int size = -1);
    static Data *fromAscii_helper(const char *str, int size = -1);
    friend class QCharRef;
    friend class QTextCodec;
    friend class QStringRef;
    friend inline bool qStringComparisonHelper(const QString &s1, const char *s2);
    friend inline bool qStringComparisonHelper(const QStringRef &s1, const char *s2);
public:
    typedef Data * DataPtr;
    inline DataPtr &data_ptr() { return d; }
};


class Q_CORE_EXPORT QLatin1String
{
public:
    inline explicit QLatin1String(const char *s) : chars(s) {}
    inline QLatin1String &operator=(const QLatin1String &other)
    { chars = other.chars; return *this; }

    inline const char *latin1() const { return chars; }

    inline bool operator==(const QString &s) const
    { return s == *this; }
    inline bool operator!=(const QString &s) const
    { return s != *this; }
    inline bool operator>(const QString &s) const
    { return s < *this; }
    inline bool operator<(const QString &s) const
    { return s > *this; }
    inline bool operator>=(const QString &s) const
    { return s <= *this; }
    inline bool operator<=(const QString &s) const
    { return s >= *this; }

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



inline QString::QString(const QLatin1String &latin1) : d(fromLatin1_helper(latin1.latin1()))
{ }
inline int QString::length() const
{ return d->size; }
inline const QChar QString::at(int i) const
{ Q_ASSERT(i >= 0 && i < size()); return d->data[i]; }
inline const QChar QString::operator[](int i) const
{ Q_ASSERT(i >= 0 && i < size()); return d->data[i]; }
inline const QChar QString::operator[](uint i) const
{ Q_ASSERT(i < uint(size())); return d->data[i]; }
inline bool QString::isEmpty() const
{ return d->size == 0; }
inline const QChar *QString::unicode() const
{ return reinterpret_cast<const QChar*>(d->data); }
inline const QChar *QString::data() const
{ return reinterpret_cast<const QChar*>(d->data); }
inline QChar *QString::data()
{ detach(); return reinterpret_cast<QChar*>(d->data); }
inline const QChar *QString::constData() const
{ return reinterpret_cast<const QChar*>(d->data); }
inline void QString::detach()
{ if (d->ref != 1 || d->data != d->array) realloc(); }
inline bool QString::isDetached() const
{ return d->ref == 1; }
inline QString &QString::operator=(const QLatin1String &s)
{
    *this = fromLatin1(s.latin1());
    return *this;
}
inline void QString::clear()
{ if (!isNull()) *this = QString(); }
inline QString::QString(const QString &other) : d(other.d)
{ Q_ASSERT(&other != this); d->ref.ref(); }
inline int QString::capacity() const
{ return d->alloc; }
inline QString &QString::setNum(short n, int base)
{ return setNum(qlonglong(n), base); }
inline QString &QString::setNum(ushort n, int base)
{ return setNum(qulonglong(n), base); }
inline QString &QString::setNum(int n, int base)
{ return setNum(qlonglong(n), base); }
inline QString &QString::setNum(uint n, int base)
{ return setNum(qulonglong(n), base); }
inline QString &QString::setNum(long n, int base)
{ return setNum(qlonglong(n), base); }
inline QString &QString::setNum(ulong n, int base)
{ return setNum(qulonglong(n), base); }
inline QString &QString::setNum(float n, char f, int prec)
{ return setNum(double(n),f,prec); }
inline QString QString::arg(int a, int fieldWidth, int base, const QChar &fillChar) const
{ return arg(qlonglong(a), fieldWidth, base, fillChar); }
inline QString QString::arg(uint a, int fieldWidth, int base, const QChar &fillChar) const
{ return arg(qulonglong(a), fieldWidth, base, fillChar); }
inline QString QString::arg(long a, int fieldWidth, int base, const QChar &fillChar) const
{ return arg(qlonglong(a), fieldWidth, base, fillChar); }
inline QString QString::arg(ulong a, int fieldWidth, int base, const QChar &fillChar) const
{ return arg(qulonglong(a), fieldWidth, base, fillChar); }
inline QString QString::arg(short a, int fieldWidth, int base, const QChar &fillChar) const
{ return arg(qlonglong(a), fieldWidth, base, fillChar); }
inline QString QString::arg(ushort a, int fieldWidth, int base, const QChar &fillChar) const
{ return arg(qulonglong(a), fieldWidth, base, fillChar); }
inline QString QString::arg(const QString &a1, const QString &a2) const
{ const QString *args[2] = { &a1, &a2 }; return multiArg(2, args); }
inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3) const
{ const QString *args[3] = { &a1, &a2, &a3 }; return multiArg(3, args); }
inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
                            const QString &a4) const
{ const QString *args[4] = { &a1, &a2, &a3, &a4 }; return multiArg(4, args); }
inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
                            const QString &a4, const QString &a5) const
{ const QString *args[5] = { &a1, &a2, &a3, &a4, &a5 }; return multiArg(5, args); }
inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
                            const QString &a4, const QString &a5, const QString &a6) const
{ const QString *args[6] = { &a1, &a2, &a3, &a4, &a5, &a6 }; return multiArg(6, args); }
inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
                            const QString &a4, const QString &a5, const QString &a6,
                            const QString &a7) const
{ const QString *args[7] = { &a1, &a2, &a3, &a4, &a5, &a6,  &a7 }; return multiArg(7, args); }
inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
                            const QString &a4, const QString &a5, const QString &a6,
                            const QString &a7, const QString &a8) const
{ const QString *args[8] = { &a1, &a2, &a3, &a4, &a5, &a6,  &a7, &a8 }; return multiArg(8, args); }
inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
                            const QString &a4, const QString &a5, const QString &a6,
                            const QString &a7, const QString &a8, const QString &a9) const
{ const QString *args[9] = { &a1, &a2, &a3, &a4, &a5, &a6,  &a7, &a8, &a9 }; return multiArg(9, args); }

inline QString QString::section(QChar asep, int astart, int aend, SectionFlags aflags) const
{ return section(QString(asep), astart, aend, aflags); }


class Q_CORE_EXPORT QCharRef {
    QString &s;
    int i;
    inline QCharRef(QString &str, int idx)
        : s(str),i(idx) {}
    friend class QString;
public:

    // most QChar operations repeated here

    // all this is not documented: We just say "like QChar" and let it be.
    inline operator QChar() const
        { return i < s.d->size ? s.d->data[i] : 0; }
    inline QCharRef &operator=(const QChar &c)
        { if (s.d->ref != 1 || i >= s.d->size) s.expand(i);
          s.d->data[i] = c.unicode();  return *this; }

    // An operator= for each QChar cast constructors
#ifndef QT_NO_CAST_FROM_ASCII
    inline QT_ASCII_CAST_WARN QCharRef &operator=(char c)
    { return operator=(QChar::fromAscii(c)); }
    inline QT_ASCII_CAST_WARN QCharRef &operator=(uchar c)
    { return operator=(QChar::fromAscii(c)); }
#endif
    inline QCharRef &operator=(const QCharRef &c) { return operator=(QChar(c)); }
    inline QCharRef &operator=(ushort rc) { return operator=(QChar(rc)); }
    inline QCharRef &operator=(short rc) { return operator=(QChar(rc)); }
    inline QCharRef &operator=(uint rc) { return operator=(QChar(rc)); }
    inline QCharRef &operator=(int rc) { return operator=(QChar(rc)); }

    // each function...
    inline bool isNull() const { return QChar(*this).isNull(); }
    inline bool isPrint() const { return QChar(*this).isPrint(); }
    inline bool isPunct() const { return QChar(*this).isPunct(); }
    inline bool isSpace() const { return QChar(*this).isSpace(); }
    inline bool isMark() const { return QChar(*this).isMark(); }
    inline bool isLetter() const { return QChar(*this).isLetter(); }
    inline bool isNumber() const { return QChar(*this).isNumber(); }
    inline bool isLetterOrNumber() { return QChar(*this).isLetterOrNumber(); }
    inline bool isDigit() const { return QChar(*this).isDigit(); }
    inline bool isLower() const { return QChar(*this).isLower(); }
    inline bool isUpper() const { return QChar(*this).isUpper(); }
    inline bool isTitleCase() const { return QChar(*this).isTitleCase(); }

    inline int digitValue() const { return QChar(*this).digitValue(); }
    QChar toLower() const { return QChar(*this).toLower(); }
    QChar toUpper() const { return QChar(*this).toUpper(); }
    QChar toTitleCase () const { return QChar(*this).toTitleCase(); }

    QChar::Category category() const { return QChar(*this).category(); }
    QChar::Direction direction() const { return QChar(*this).direction(); }
    QChar::Joining joining() const { return QChar(*this).joining(); }
    bool hasMirrored() const { return QChar(*this).hasMirrored(); }
    QChar mirroredChar() const { return QChar(*this).mirroredChar(); }
    QString decomposition() const { return QChar(*this).decomposition(); }
    QChar::Decomposition decompositionTag() const { return QChar(*this).decompositionTag(); }
    uchar combiningClass() const { return QChar(*this).combiningClass(); }

    QChar::UnicodeVersion unicodeVersion() const { return QChar(*this).unicodeVersion(); }

    inline uchar cell() const { return QChar(*this).cell(); }
    inline uchar row() const { return QChar(*this).row(); }
    inline void setCell(uchar cell);
    inline void setRow(uchar row);

    const char toAscii() const { return QChar(*this).toAscii(); }
    const char toLatin1() const { return QChar(*this).toLatin1(); }
    const ushort unicode() const { return QChar(*this).unicode(); }

#ifdef QT3_SUPPORT
    inline QT3_SUPPORT bool mirrored() const { return hasMirrored(); }
    inline QT3_SUPPORT QChar lower() const { return QChar(*this).toLower(); }
    inline QT3_SUPPORT QChar upper() const { return QChar(*this).toUpper(); }
    const QT3_SUPPORT char latin1() const { return QChar(*this).toLatin1(); }
    const QT3_SUPPORT char ascii() const { return QChar(*this).toAscii(); }
#endif
};

inline void QCharRef::setRow(uchar arow) { QChar(*this).setRow(arow); }
inline void QCharRef::setCell(uchar acell) { QChar(*this).setCell(acell); }


inline QString::QString() : d(&shared_null) { d->ref.ref(); }
inline QString::~QString() { if (!d->ref.deref()) free(d); }
inline void QString::reserve(int asize) { if (d->ref != 1 || asize > d->alloc) realloc(asize); d->capacity = 1;}
inline QString &QString::setUtf16(const ushort *autf16, int asize)
{ return setUnicode(reinterpret_cast<const QChar *>(autf16), asize); }
inline QCharRef QString::operator[](int i)
{ Q_ASSERT(i >= 0); return QCharRef(*this, i); }
inline QCharRef QString::operator[](uint i)
{ return QCharRef(*this, i); }
inline QString::iterator QString::begin()
{ detach(); return reinterpret_cast<QChar*>(d->data); }
inline QString::const_iterator QString::begin() const
{ return reinterpret_cast<const QChar*>(d->data); }
inline QString::const_iterator QString::constBegin() const
{ return reinterpret_cast<const QChar*>(d->data); }
inline QString::iterator QString::end()
{ detach(); return reinterpret_cast<QChar*>(d->data + d->size); }
inline QString::const_iterator QString::end() const
{ return reinterpret_cast<const QChar*>(d->data + d->size); }
inline QString::const_iterator QString::constEnd() const
{ return reinterpret_cast<const QChar*>(d->data + d->size); }
inline QBool QString::contains(const QString &s, Qt::CaseSensitivity cs) const
{ return QBool(indexOf(s, 0, cs) != -1); }
inline QBool QString::contains(QChar c, Qt::CaseSensitivity cs) const
{ return QBool(indexOf(c, 0, cs) != -1); }


inline bool operator==(QString::Null, QString::Null) { return true; }
inline bool operator==(QString::Null, const QString &s) { return s.isNull(); }
inline bool operator==(const QString &s, QString::Null) { return s.isNull(); }
inline bool operator!=(QString::Null, QString::Null) { return false; }
inline bool operator!=(QString::Null, const QString &s) { return !s.isNull(); }
inline bool operator!=(const QString &s, QString::Null) { return !s.isNull(); }

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