/****************************************************************************

**

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the QtCore module of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

#ifndef QCHAR_H

#define QCHAR_H

#include <QtCore/qglobal.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Core)

class QString;

struct QLatin1Char

{

public:

    inline explicit QLatin1Char(char c) : ch(c) {}

#ifdef Q_COMPILER_MANGLES_RETURN_TYPE

    inline const char toLatin1() const { return ch; }

    inline const ushort unicode() const { return ushort(uchar(ch)); }

#else

    inline char toLatin1() const { return ch; }

    inline ushort unicode() const { return ushort(uchar(ch)); }

#endif

private:

    char ch;

};

class Q_CORE_EXPORT QChar {

public:

    QChar();

#ifndef QT_NO_CAST_FROM_ASCII

    QT_ASCII_CAST_WARN_CONSTRUCTOR QChar(char c);

    QT_ASCII_CAST_WARN_CONSTRUCTOR QChar(uchar c);

#endif

    QChar(QLatin1Char ch);

    QChar(uchar c, uchar r);

    inline QChar(ushort rc) : ucs(rc){}

    QChar(short rc);

    QChar(uint rc);

    QChar(int rc);

    enum SpecialCharacter {

        Null = 0x0000,

        Nbsp = 0x00a0,

        ReplacementCharacter = 0xfffd,

        ObjectReplacementCharacter = 0xfffc,

        ByteOrderMark = 0xfeff,

        ByteOrderSwapped = 0xfffe,

#ifdef QT3_SUPPORT

        null = Null,

        replacement = ReplacementCharacter,

        byteOrderMark = ByteOrderMark,

        byteOrderSwapped = ByteOrderSwapped,

        nbsp = Nbsp,

#endif

        ParagraphSeparator = 0x2029,

        LineSeparator = 0x2028

    };

    QChar(SpecialCharacter sc);

    // Unicode information

    enum Category

    {

        NoCategory,

        Mark_NonSpacing,          //   Mn

        Mark_SpacingCombining,    //   Mc

        Mark_Enclosing,           //   Me

        Number_DecimalDigit,      //   Nd

        Number_Letter,            //   Nl

        Number_Other,             //   No

        Separator_Space,          //   Zs

        Separator_Line,           //   Zl

        Separator_Paragraph,      //   Zp

        Other_Control,            //   Cc

        Other_Format,             //   Cf

        Other_Surrogate,          //   Cs

        Other_PrivateUse,         //   Co

        Other_NotAssigned,        //   Cn

        Letter_Uppercase,         //   Lu

        Letter_Lowercase,         //   Ll

        Letter_Titlecase,         //   Lt

        Letter_Modifier,          //   Lm

        Letter_Other,             //   Lo

        Punctuation_Connector,    //   Pc

        Punctuation_Dash,         //   Pd

        Punctuation_Open,         //   Ps

        Punctuation_Close,        //   Pe

        Punctuation_InitialQuote, //   Pi

        Punctuation_FinalQuote,   //   Pf

        Punctuation_Other,        //   Po

        Symbol_Math,              //   Sm

        Symbol_Currency,          //   Sc

        Symbol_Modifier,          //   Sk

        Symbol_Other,             //   So

        Punctuation_Dask = Punctuation_Dash // oops

    };

    enum Direction

    {

        DirL, DirR, DirEN, DirES, DirET, DirAN, DirCS, DirB, DirS, DirWS, DirON,

        DirLRE, DirLRO, DirAL, DirRLE, DirRLO, DirPDF, DirNSM, DirBN

    };

    enum Decomposition

    {

        NoDecomposition,

        Canonical,

        Font,

        NoBreak,

        Initial,

        Medial,

        Final,

        Isolated,

        Circle,

        Super,

        Sub,

        Vertical,

        Wide,

        Narrow,

        Small,

        Square,

        Compat,

        Fraction

#ifdef QT3_SUPPORT

        , Single = NoDecomposition

#endif

    };

    enum Joining

    {

        OtherJoining, Dual, Right, Center

    };

    enum CombiningClass

    {

        Combining_BelowLeftAttached       = 200,

        Combining_BelowAttached           = 202,

        Combining_BelowRightAttached      = 204,

        Combining_LeftAttached            = 208,

        Combining_RightAttached           = 210,

        Combining_AboveLeftAttached       = 212,

        Combining_AboveAttached           = 214,

        Combining_AboveRightAttached      = 216,

        Combining_BelowLeft               = 218,

        Combining_Below                   = 220,

        Combining_BelowRight              = 222,

        Combining_Left                    = 224,

        Combining_Right                   = 226,

        Combining_AboveLeft               = 228,

        Combining_Above                   = 230,

        Combining_AboveRight              = 232,

        Combining_DoubleBelow             = 233,

        Combining_DoubleAbove             = 234,

        Combining_IotaSubscript           = 240

    };

    enum UnicodeVersion {

        Unicode_Unassigned,

        Unicode_1_1,

        Unicode_2_0,

        Unicode_2_1_2,

        Unicode_3_0,

        Unicode_3_1,

        Unicode_3_2,

        Unicode_4_0,

        Unicode_4_1,

        Unicode_5_0

    };

    // ****** WHEN ADDING FUNCTIONS, CONSIDER ADDING TO QCharRef TOO

    Category category() const;

    Direction direction() const;

    Joining joining() const;

    bool hasMirrored() const;

    unsigned char combiningClass() const;

    QChar mirroredChar() const;

    QString decomposition() const;

    Decomposition decompositionTag() const;

    int digitValue() const;

    QChar toLower() const;

    QChar toUpper() const;

    QChar toTitleCase() const;

    QChar toCaseFolded() const;

    UnicodeVersion unicodeVersion() const;

#ifdef Q_COMPILER_MANGLES_RETURN_TYPE

    const char toAscii() const;

    inline const char toLatin1() const;

    inline const ushort unicode() const { return ucs; }

#else

    char toAscii() const;

    inline char toLatin1() const;

    inline ushort unicode() const { return ucs; }

#endif

#ifdef Q_NO_PACKED_REFERENCE

    inline ushort &unicode() { return const_cast<ushort&>(ucs); }

#else

    inline ushort &unicode() { return ucs; }

#endif

    static QChar fromAscii(char c);

    static QChar fromLatin1(char c);

    inline bool isNull() const { return ucs == 0; }

    bool isPrint() const;

    bool isPunct() const;

    bool isSpace() const;

    bool isMark() const;

    bool isLetter() const;

    bool isNumber() const;

    bool isLetterOrNumber() const;

    bool isDigit() const;

    bool isSymbol() const;

    inline bool isLower() const { return category() == Letter_Lowercase; }

    inline bool isUpper() const { return category() == Letter_Uppercase; }

    inline bool isTitleCase() const { return category() == Letter_Titlecase; }

    inline bool isHighSurrogate() const {

        return ((ucs & 0xfc00) == 0xd800);

    }

    inline bool isLowSurrogate() const {

        return ((ucs & 0xfc00) == 0xdc00);

    }

    inline uchar cell() const { return uchar(ucs & 0xff); }

    inline uchar row() const { return uchar((ucs>>8)&0xff); }

    inline void setCell(uchar cell);

    inline void setRow(uchar row);

    static inline uint surrogateToUcs4(ushort high, ushort low) {

        return (uint(high)<<10) + low - 0x35fdc00;

    }

    static inline uint surrogateToUcs4(QChar high, QChar low) {

        return (uint(high.ucs)<<10) + low.ucs - 0x35fdc00;

    }

    static inline ushort highSurrogate(uint ucs4) {

        return ushort((ucs4>>10) + 0xd7c0);

    }

    static inline ushort lowSurrogate(uint ucs4) {

        return ushort(ucs4%0x400 + 0xdc00);

    }

    static Category QT_FASTCALL category(uint ucs4);

    static Category QT_FASTCALL category(ushort ucs2);

    static Direction QT_FASTCALL direction(uint ucs4);

    static Direction QT_FASTCALL direction(ushort ucs2);

    static Joining QT_FASTCALL joining(uint ucs4);

    static Joining QT_FASTCALL joining(ushort ucs2);

    static unsigned char QT_FASTCALL combiningClass(uint ucs4);

    static unsigned char QT_FASTCALL combiningClass(ushort ucs2);

    static uint QT_FASTCALL mirroredChar(uint ucs4);

    static ushort QT_FASTCALL mirroredChar(ushort ucs2);

    static Decomposition QT_FASTCALL decompositionTag(uint ucs4);

    static int QT_FASTCALL digitValue(uint ucs4);

    static int QT_FASTCALL digitValue(ushort ucs2);

    static uint QT_FASTCALL toLower(uint ucs4);

    static ushort QT_FASTCALL toLower(ushort ucs2);

    static uint QT_FASTCALL toUpper(uint ucs4);

    static ushort QT_FASTCALL toUpper(ushort ucs2);

    static uint QT_FASTCALL toTitleCase(uint ucs4);

    static ushort QT_FASTCALL toTitleCase(ushort ucs2);

    static uint QT_FASTCALL toCaseFolded(uint ucs4);

    static ushort QT_FASTCALL toCaseFolded(ushort ucs2);

    static UnicodeVersion QT_FASTCALL unicodeVersion(uint ucs4);

    static UnicodeVersion QT_FASTCALL unicodeVersion(ushort ucs2);

    static QString QT_FASTCALL decomposition(uint ucs4);

#ifdef QT3_SUPPORT

    inline QT3_SUPPORT bool mirrored() const { return hasMirrored(); }

    inline QT3_SUPPORT QChar lower() const { return toLower(); }

    inline QT3_SUPPORT QChar upper() const { return toUpper(); }

    static inline QT3_SUPPORT bool networkOrdered() {

        return QSysInfo::ByteOrder == QSysInfo::BigEndian;

    }

#ifdef Q_COMPILER_MANGLES_RETURN_TYPE

    inline QT3_SUPPORT const char latin1() const { return toLatin1(); }

    inline QT3_SUPPORT const char ascii() const { return toAscii(); }

#else

    inline QT3_SUPPORT char latin1() const { return toLatin1(); }

    inline QT3_SUPPORT char ascii() const { return toAscii(); }

#endif

#endif

private:

#ifdef QT_NO_CAST_FROM_ASCII

    QChar(char c);

    QChar(uchar c);

#endif

    ushort ucs;

}

#if (defined(__arm__) || defined(__ARMEL__))

    Q_PACKED

#endif

    ;

Q_DECLARE_TYPEINFO(QChar, Q_MOVABLE_TYPE);

inline QChar::QChar() : ucs(0) {}

#ifdef Q_COMPILER_MANGLES_RETURN_TYPE

inline const char QChar::toLatin1() const { return ucs > 0xff ? '\0' : char(ucs); }

#else

inline char QChar::toLatin1() const { return ucs > 0xff ? '\0' : char(ucs); }

#endif

inline QChar QChar::fromLatin1(char c) { return QChar(ushort(uchar(c))); }

inline QChar::QChar(uchar c, uchar r) : ucs(ushort((r << 8) | c)){}

inline QChar::QChar(short rc) : ucs(ushort(rc)){}

inline QChar::QChar(uint rc) : ucs(ushort(rc & 0xffff)){}

inline QChar::QChar(int rc) : ucs(ushort(rc & 0xffff)){}

inline QChar::QChar(SpecialCharacter s) : ucs(ushort(s)) {}

inline QChar::QChar(QLatin1Char ch) : ucs(ch.unicode()) {}

inline void QChar::setCell(uchar acell)

{ ucs = ushort((ucs & 0xff00) + acell); }

inline void QChar::setRow(uchar arow)

{ ucs = ushort((ushort(arow)<<8) + (ucs&0xff)); }

inline bool operator==(QChar c1, QChar c2) { return c1.unicode() == c2.unicode(); }

inline bool operator!=(QChar c1, QChar c2) { return c1.unicode() != c2.unicode(); }

inline bool operator<=(QChar c1, QChar c2) { return c1.unicode() <= c2.unicode(); }

inline bool operator>=(QChar c1, QChar c2) { return c1.unicode() >= c2.unicode(); }

inline bool operator<(QChar c1, QChar c2) { return c1.unicode() < c2.unicode(); }

inline bool operator>(QChar c1, QChar c2) { return c1.unicode() > c2.unicode(); }

#ifndef QT_NO_DATASTREAM

Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QChar &);

Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QChar &);

#endif

QT_END_NAMESPACE

QT_END_HEADER

#endif // QCHAR_H