Initial import from the monolithic Qt.

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 404 insertions, 0 deletions

diff --git a/src/corelib/tools/qchar.h b/src/corelib/tools/qchar.h
new file mode 100644
index 0000000000..508053671c
--- /dev/null
+++ b/src/corelib/tools/qchar.h
@@ -0,0 +1,404 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** 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,    // ### Qt 5: replace with Other_NotAssigned
+
+        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 // ### Qt 5: remove
+    };
+
+    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,    // ### Qt 5: assign with some constantly big value
+        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 bool isHighSurrogate(uint ucs4) {
+        return ((ucs4 & 0xfffffc00) == 0xd800);
+    }
+    static inline bool isLowSurrogate(uint ucs4) {
+        return ((ucs4 & 0xfffffc00) == 0xdc00);
+    }
+    static inline bool requiresSurrogates(uint ucs4) {
+        return (ucs4 >= 0x10000);
+    }
+    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 UnicodeVersion QT_FASTCALL currentUnicodeVersion();
+
+    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;
+};
+
+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