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# ntqstring.h

This is the verbatim text of the ntqstring.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/ntqstring.h   3.3.8   edited Jan 11 14:38 $
    **
    ** Definition of the TQString class, and related Unicode functions.
    **
    ** Created : 920609
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of the tools module of the TQt GUI Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License versions 2.0 or 3.0 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file. Alternatively you may (at your option) use any
    ** later version of the GNU General Public License if such license has
    ** been publicly approved by Trolltech ASA (or its successors, if any)
    ** and the KDE Free TQt Foundation.
    **
    ** Please review the following information to ensure GNU General
    ** Public Licensing requirements will be met:
    ** http://trolltech.com/products/qt/licenses/licensing/opensource/.
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
    ** or contact the sales department at sales@trolltech.com.
    **
    ** This file may be used under the terms of the Q Public License as
    ** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
    ** included in the packaging of this file.  Licensees holding valid TQt
    ** Commercial licenses may use this file in accordance with the TQt
    ** Commercial License Agreement provided with the Software.
    **
    ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
    ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
    ** herein.
    **
    **********************************************************************/

    #ifndef TQSTRING_H
    #define TQSTRING_H

    #ifndef QT_H
    #include "ntqcstring.h"
    #endif // QT_H

    #ifndef TQT_NO_CAST_ASCII
    #include <limits.h>
    #endif

    #ifndef TQT_NO_STL
    #if defined ( Q_CC_MSVC_NET ) && _MSC_VER < 1310 // Avoids nasty warning for xlocale, line 450
    #  pragma warning ( push )
    #  pragma warning ( disable : 4189 )
    #  include <string>
    #  pragma warning ( pop )
    #else
    #  include <string>
    #endif
    #if defined(Q_WRONG_SB_CTYPE_MACROS) && defined(_SB_CTYPE_MACROS)
    #undef _SB_CTYPE_MACROS
    #endif
    #endif

    /*****************************************************************************
      TQString class
     *****************************************************************************/

    class TQRegExp;
    class TQString;
    class TQCharRef;
    template <class T> class TQDeepCopy;

    class TQ_EXPORT TQChar {
    public:
        TQChar();
        TQChar( char c );
        TQChar( uchar c );
        TQChar( uchar c, uchar r );
        TQChar( const TQChar& c ); // ### remove in 4.0 to allow compiler optimization
        TQChar( ushort rc );
        TQChar( short rc );
        TQChar( uint rc );
        TQChar( int rc );

        QT_STATIC_CONST TQChar null;            // 0000
        QT_STATIC_CONST TQChar replacement;     // FFFD
        QT_STATIC_CONST TQChar byteOrderMark;     // FEFF
        QT_STATIC_CONST TQChar byteOrderSwapped;     // FFFE
        QT_STATIC_CONST TQChar nbsp;            // 00A0

        // 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_Dask = Punctuation_Dash, // oops
            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
        };

        enum Direction
        {
            DirL, DirR, DirEN, DirES, DirET, DirAN, DirCS, DirB, DirS, DirWS, DirON,
            DirLRE, DirLRO, DirAL, DirRLE, DirRLO, DirPDF, DirNSM, DirBN
        };

        enum Decomposition
        {
            Single, Canonical, Font, NoBreak, Initial, Medial,
            Final, Isolated, Circle, Super, Sub, Vertical,
            Wide, Narrow, Small, Square, Compat, Fraction
        };

        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
        };

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

        int digitValue() const;
        TQChar lower() const;
        TQChar upper() const;

        Category category() const;
        Direction direction() const;
        Joining joining() const;
        bool mirrored() const;
        TQChar mirroredChar() const;
        const TQString &decomposition() const; // ### return just TQString in 4.0
        Decomposition decompositionTag() const;
        unsigned char combiningClass() const;

        char latin1() const { return ucs > 0xff ? 0 : (char) ucs; }
        ushort unicode() const { return ucs; }
    #ifdef Q_NO_PACKED_REFERENCE
        ushort &unicode() { return *(&ucs); }
    #else
        ushort &unicode() { return ucs; }
    #endif
    #ifndef TQT_NO_CAST_ASCII
        // like all ifdef'd code this is undocumented
        operator char() const { return latin1(); }
    #endif

        bool isNull() const { return unicode()==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;

        uchar cell() const { return ((uchar) ucs & 0xff); }
        uchar row() const { return ((uchar) (ucs>>8)&0xff); }
        void setCell( uchar cell ) { ucs = (ucs & 0xff00) + cell; }
        void setRow( uchar row ) { ucs = (((ushort) row)<<8) + (ucs&0xff); }

        static bool networkOrdered() {
    	int wordSize;
    	bool bigEndian = FALSE;
    	tqSysInfo( &wordSize, &bigEndian );
    	return bigEndian;
        }

        friend inline bool operator==( char ch, TQChar c );
        friend inline bool operator==( TQChar c, char ch );
        friend inline bool operator==( TQChar c1, TQChar c2 );
        friend inline bool operator!=( TQChar c1, TQChar c2 );
        friend inline bool operator!=( char ch, TQChar c );
        friend inline bool operator!=( TQChar c, char ch );
        friend inline bool operator<=( TQChar c, char ch );
        friend inline bool operator<=( char ch, TQChar c );
        friend inline bool operator<=( TQChar c1, TQChar c2 );

    private:
        ushort ucs;
    #if defined(QT_QSTRING_UCS_4)
        ushort grp;
    #endif
    } TQ_PACKED;

    inline TQChar::TQChar() : ucs( 0 )
    #ifdef QT_QSTRING_UCS_4
        , grp( 0 )
    #endif
    {
    }
    inline TQChar::TQChar( char c ) : ucs( (uchar)c )
    #ifdef QT_QSTRING_UCS_4
        , grp( 0 )
    #endif
    {
    }
    inline TQChar::TQChar( uchar c ) : ucs( c )
    #ifdef QT_QSTRING_UCS_4
        , grp( 0 )
    #endif
    {
    }
    inline TQChar::TQChar( uchar c, uchar r ) : ucs( (r << 8) | c )
    #ifdef QT_QSTRING_UCS_4
        , grp( 0 )
    #endif
    {
    }
    inline TQChar::TQChar( const TQChar& c ) : ucs( c.ucs )
    #ifdef QT_QSTRING_UCS_4
       , grp( c.grp )
    #endif
    {
    }

    inline TQChar::TQChar( ushort rc ) : ucs( rc )
    #ifdef QT_QSTRING_UCS_4
        , grp( 0 )
    #endif
    {
    }
    inline TQChar::TQChar( short rc ) : ucs( (ushort) rc )
    #ifdef QT_QSTRING_UCS_4
        , grp( 0 )
    #endif
    {
    }
    inline TQChar::TQChar( uint rc ) : ucs(  (ushort ) (rc & 0xffff) )
    #ifdef QT_QSTRING_UCS_4
        , grp( (ushort) ((rc >> 16) & 0xffff) )
    #endif
    {
    }
    inline TQChar::TQChar( int rc ) : ucs( (ushort) (rc & 0xffff) )
    #ifdef QT_QSTRING_UCS_4
        , grp( (ushort) ((rc >> 16) & 0xffff) )
    #endif
    {
    }

    inline bool operator==( char ch, TQChar c )
    {
        return ((uchar) ch) == c.ucs;
    }

    inline bool operator==( TQChar c, char ch )
    {
        return ((uchar) ch) == c.ucs;
    }

    inline bool operator==( TQChar c1, TQChar c2 )
    {
        return c1.ucs == c2.ucs;
    }

    inline bool operator!=( TQChar c1, TQChar c2 )
    {
        return c1.ucs != c2.ucs;
    }

    inline bool operator!=( char ch, TQChar c )
    {
        return ((uchar)ch) != c.ucs;
    }

    inline bool operator!=( TQChar c, char ch )
    {
        return ((uchar) ch) != c.ucs;
    }

    inline bool operator<=( TQChar c, char ch )
    {
        return c.ucs <= ((uchar) ch);
    }

    inline bool operator<=( char ch, TQChar c )
    {
        return ((uchar) ch) <= c.ucs;
    }

    inline bool operator<=( TQChar c1, TQChar c2 )
    {
        return c1.ucs <= c2.ucs;
    }

    inline bool operator>=( TQChar c, char ch ) { return ch <= c; }
    inline bool operator>=( char ch, TQChar c ) { return c <= ch; }
    inline bool operator>=( TQChar c1, TQChar c2 ) { return c2 <= c1; }
    inline bool operator<( TQChar c, char ch ) { return !(ch<=c); }
    inline bool operator<( char ch, TQChar c ) { return !(c<=ch); }
    inline bool operator<( TQChar c1, TQChar c2 ) { return !(c2<=c1); }
    inline bool operator>( TQChar c, char ch ) { return !(ch>=c); }
    inline bool operator>( char ch, TQChar c ) { return !(c>=ch); }
    inline bool operator>( TQChar c1, TQChar c2 ) { return !(c2>=c1); }

    // internal
    struct TQ_EXPORT TQStringData : public TQShared {
        TQStringData() :
            TQShared(), unicode(0), ascii(0), len(0), issimpletext(TRUE), maxl(0), islatin1(FALSE) { ref(); }
        TQStringData(TQChar *u, uint l, uint m) :
            TQShared(), unicode(u), ascii(0), len(l), issimpletext(FALSE), maxl(m), islatin1(FALSE) { }
        ~TQStringData() { if ( unicode ) delete[] ((char*)unicode);
                         if ( ascii ) delete[] ascii; }

        void deleteSelf();
        TQChar *unicode;
        char *ascii;
        void setDirty() {
    	if ( ascii ) {
    	    delete [] ascii;
    	    ascii = 0;
    	}
    	issimpletext = FALSE;
        }
    #ifdef Q_OS_MAC9
        uint len;
    #else
        uint len : 30;
    #endif
        uint issimpletext : 1;
    #ifdef Q_OS_MAC9
        uint maxl;
    #else
        uint maxl : 30;
    #endif
        uint islatin1 : 1;

    private:
    #if defined(TQ_DISABLE_COPY)
        TQStringData( const TQStringData& );
        TQStringData& operator=( const TQStringData& );
    #endif
    };

    class TQ_EXPORT TQString
    {
    public:
        TQString();                                  // make null string
        TQString( TQChar );                           // one-char string
        TQString( const TQString & );                 // impl-shared copy
        TQString( const TQByteArray& );               // deep copy
        TQString( const TQChar* unicode, uint length ); // deep copy
    #ifndef TQT_NO_CAST_ASCII
        TQString( const char *str );                 // deep copy
    #endif
    #ifndef TQT_NO_STL
        TQString( const std::string& );                   // deep copy
    #endif
        ~TQString();

        TQString    &operator=( const TQString & );   // impl-shared copy
        TQString    &operator=( const char * );      // deep copy
    #ifndef TQT_NO_STL
        TQString    &operator=( const std::string& );     // deep copy
    #endif
        TQString    &operator=( const TQCString& );   // deep copy
        TQString    &operator=( TQChar c );
        TQString    &operator=( char c );

        QT_STATIC_CONST TQString null;

        bool        isNull()        const;
        bool        isEmpty()       const;
        uint        length()        const;
        void        truncate( uint pos );

        TQString &   fill( TQChar c, int len = -1 );

        TQString     copy()  const;

        TQString arg( long a, int fieldWidth = 0, int base = 10 ) const;
        TQString arg( ulong a, int fieldWidth = 0, int base = 10 ) const;
        TQString arg( TQ_LLONG a, int fieldwidth=0, int base=10 ) const;
        TQString arg( TQ_ULLONG a, int fieldwidth=0, int base=10 ) const;
        TQString arg( int a, int fieldWidth = 0, int base = 10 ) const;
        TQString arg( uint a, int fieldWidth = 0, int base = 10 ) const;
        TQString arg( short a, int fieldWidth = 0, int base = 10 ) const;
        TQString arg( ushort a, int fieldWidth = 0, int base = 10 ) const;
        TQString arg( double a, int fieldWidth = 0, char fmt = 'g',
    		 int prec = -1 ) const;
        TQString arg( char a, int fieldWidth = 0 ) const;
        TQString arg( TQChar a, int fieldWidth = 0 ) const;
        TQString arg( const TQString& a, int fieldWidth = 0 ) const;
        TQString arg( const TQString& a1, const TQString& a2 ) const;
        TQString arg( const TQString& a1, const TQString& a2,
    		 const TQString& a3 ) const;
        TQString arg( const TQString& a1, const TQString& a2, const TQString& a3,
    		 const TQString& a4 ) const;

    #ifndef TQT_NO_SPRINTF
        TQString    &sprintf( const char* format, ... )
    #if defined(Q_CC_GNU) && !defined(__INSURE__)
            __attribute__ ((format (printf, 2, 3)))
    #endif
            ;
    #endif

        int         find( TQChar c, int index=0, bool cs=TRUE ) const;
        int         find( char c, int index=0, bool cs=TRUE ) const;
        int         find( const TQString &str, int index=0, bool cs=TRUE ) const;
    #ifndef TQT_NO_REGEXP
        int         find( const TQRegExp &, int index=0 ) const;
    #endif
    #ifndef TQT_NO_CAST_ASCII
        int         find( const char* str, int index=0 ) const;
    #endif
        int         findRev( TQChar c, int index=-1, bool cs=TRUE) const;
        int         findRev( char c, int index=-1, bool cs=TRUE) const;
        int         findRev( const TQString &str, int index=-1, bool cs=TRUE) const;
    #ifndef TQT_NO_REGEXP
        int         findRev( const TQRegExp &, int index=-1 ) const;
    #endif
    #ifndef TQT_NO_CAST_ASCII
        int         findRev( const char* str, int index=-1 ) const;
    #endif
        int         contains( TQChar c, bool cs=TRUE ) const;
        int         contains( char c, bool cs=TRUE ) const
                        { return contains(TQChar(c), cs); }
    #ifndef TQT_NO_CAST_ASCII
        int         contains( const char* str, bool cs=TRUE ) const;
    #endif
        int         contains( const TQString &str, bool cs=TRUE ) const;
    #ifndef TQT_NO_REGEXP
        int         contains( const TQRegExp & ) const;
    #endif

        enum SectionFlags {
    	SectionDefault             = 0x00,
    	SectionSkipEmpty           = 0x01,
    	SectionIncludeLeadingSep   = 0x02,
    	SectionIncludeTrailingSep  = 0x04,
    	SectionCaseInsensitiveSeps = 0x08
        };
        TQString     section( TQChar sep, int start, int end = 0xffffffff, int flags = SectionDefault ) const;
        TQString     section( char sep, int start, int end = 0xffffffff, int flags = SectionDefault ) const;
    #ifndef TQT_NO_CAST_ASCII
        TQString      section( const char *in_sep, int start, int end = 0xffffffff, int flags = SectionDefault ) const;
    #endif
        TQString     section( const TQString &in_sep, int start, int end = 0xffffffff, int flags = SectionDefault ) const;
    #ifndef TQT_NO_REGEXP
        TQString     section( const TQRegExp &reg, int start, int end = 0xffffffff, int flags = SectionDefault ) const;
    #endif

        TQString     left( uint len )  const;
        TQString     right( uint len ) const;
        TQString     mid( uint index, uint len=0xffffffff) const;

        TQString     leftJustify( uint width, TQChar fill=' ', bool trunc=FALSE)const;
        TQString     rightJustify( uint width, TQChar fill=' ',bool trunc=FALSE)const;

        TQString     lower() const;
        TQString     upper() const;

        TQString     stripWhiteSpace()       const;
        TQString     simplifyWhiteSpace()    const;

        TQString    &insert( uint index, const TQString & );
    #ifndef TQT_NO_CAST_ASCII
        TQString    &insert( uint index, const TQByteArray & );
        TQString    &insert( uint index, const char * );
    #endif
        TQString    &insert( uint index, const TQChar*, uint len );
        TQString    &insert( uint index, TQChar );
        TQString    &insert( uint index, char c ) { return insert(index,TQChar(c)); }
        TQString    &append( char );
        TQString    &append( TQChar );
        TQString    &append( const TQString & );
    #ifndef TQT_NO_CAST_ASCII
        TQString    &append( const TQByteArray & );
        TQString    &append( const char * );
    #endif
    #if !defined(TQT_NO_STL) && !defined(TQT_NO_CAST_ASCII)
        TQString    &append( const std::string& );
    #endif
        TQString    &prepend( char );
        TQString    &prepend( TQChar );
        TQString    &prepend( const TQString & );
    #ifndef TQT_NO_CAST_ASCII
        TQString    &prepend( const TQByteArray & );
        TQString    &prepend( const char * );
    #endif
    #if !defined(TQT_NO_STL) && !defined(TQT_NO_CAST_ASCII)
        TQString    &prepend( const std::string& );
    #endif
        TQString    &remove( uint index, uint len );
    #if defined(Q_QDOC)
        TQString    &remove( const TQString & str, bool cs = TRUE );
    #else
        // ### TQt 4.0: merge these two into one, and remove Q_QDOC hack
        TQString    &remove( const TQString & );
        TQString    &remove( const TQString &, bool cs );
    #endif
        TQString    &remove( TQChar c );
        TQString    &remove( char c )
        { return remove( TQChar(c) ); }
    #ifndef TQT_NO_CAST_ASCII
        TQString    &remove( const char * );
    #endif
    #ifndef TQT_NO_REGEXP
        TQString    &remove( const TQRegExp & );
    #endif
        TQString    &replace( uint index, uint len, const TQString & );
        TQString    &replace( uint index, uint len, const TQChar*, uint clen );
        TQString    &replace( uint index, uint len, TQChar );
        TQString    &replace( uint index, uint len, char c )
        { return replace( index, len, TQChar(c) ); }
    #if defined(Q_QDOC)
        TQString    &replace( TQChar c, const TQString & after, bool cs = TRUE );
        TQString    &replace( char c, const TQString & after, bool cs = TRUE );
        TQString    &replace( const TQString & before, const TQString & after,
    			 bool cs = TRUE );
    #else
        // ### TQt 4.0: merge these two into one, and remove Q_QDOC hack
        TQString    &replace( TQChar c, const TQString & );
        TQString    &replace( TQChar c, const TQString &, bool );

        // ### TQt 4.0: merge these two into one, and remove Q_QDOC hack
        TQString    &replace( char c, const TQString & after )
        { return replace( TQChar(c), after, TRUE ); }
        TQString    &replace( char c, const TQString & after, bool cs )
        { return replace( TQChar(c), after, cs ); }

        // ### TQt 4.0: merge these two into one, and remove Q_QDOC hack
        TQString    &replace( const TQString &, const TQString & );
        TQString    &replace( const TQString &, const TQString &, bool );
    #endif
    #ifndef TQT_NO_REGEXP_CAPTURE
        TQString    &replace( const TQRegExp &, const TQString & );
    #endif
        TQString    &replace( TQChar, TQChar );

        short       toShort( bool *ok=0, int base=10 )      const;
        ushort      toUShort( bool *ok=0, int base=10 )     const;
        int         toInt( bool *ok=0, int base=10 )        const;
        uint        toUInt( bool *ok=0, int base=10 )       const;
        long        toLong( bool *ok=0, int base=10 )       const;
        ulong       toULong( bool *ok=0, int base=10 )      const;
        TQ_LLONG     toLongLong( bool *ok=0, int base=10 )   const;
        TQ_ULLONG    toULongLong( bool *ok=0, int base=10 )  const;
        float       toFloat( bool *ok=0 )   const;
        double      toDouble( bool *ok=0 )  const;

        TQString    &setNum( short, int base=10 );
        TQString    &setNum( ushort, int base=10 );
        TQString    &setNum( int, int base=10 );
        TQString    &setNum( uint, int base=10 );
        TQString    &setNum( long, int base=10 );
        TQString    &setNum( ulong, int base=10 );
        TQString    &setNum( TQ_LLONG, int base=10 );
        TQString    &setNum( TQ_ULLONG, int base=10 );
        TQString    &setNum( float, char f='g', int prec=6 );
        TQString    &setNum( double, char f='g', int prec=6 );

        static TQString number( long, int base=10 );
        static TQString number( ulong, int base=10);
        static TQString number( TQ_LLONG, int base=10 );
        static TQString number( TQ_ULLONG, int base=10);
        static TQString number( int, int base=10 );
        static TQString number( uint, int base=10);
        static TQString number( double, char f='g', int prec=6 );

        void        setExpand( uint index, TQChar c );

        TQString    &operator+=( const TQString &str );
    #ifndef TQT_NO_CAST_ASCII
        TQString    &operator+=( const TQByteArray &str );
        TQString    &operator+=( const char *str );
    #endif
    #if !defined(TQT_NO_STL) && !defined(TQT_NO_CAST_ASCII)
        TQString    &operator+=( const std::string& );
    #endif
        TQString    &operator+=( TQChar c );
        TQString    &operator+=( char c );

        TQChar at( uint i ) const
            { return i < d->len ? d->unicode[i] : TQChar::null; }
        TQChar operator[]( int i ) const { return at((uint)i); }
        TQCharRef at( uint i );
        TQCharRef operator[]( int i );

        TQChar constref(uint i) const
            { return at(i); }
        TQChar& ref(uint i)
            { // Optimized for easy-inlining by simple compilers.
                if ( d->count != 1 || i >= d->len )
                    subat( i );
                d->setDirty();
                return d->unicode[i];
            }

        const TQChar* unicode() const { return d->unicode; }
        const char* ascii() const;
        static TQString fromAscii(const char*, int len=-1);
        const char* latin1() const;
        static TQString fromLatin1(const char*, int len=-1);
        TQCString utf8() const;
        static TQString fromUtf8(const char*, int len=-1);
        TQCString local8Bit() const;
        static TQString fromLocal8Bit(const char*, int len=-1);
        bool operator!() const;
    #ifndef TQT_NO_ASCII_CAST
        operator const char *() const { return ascii(); }
    #endif
    #ifndef TQT_NO_STL
        operator std::string() const { return ascii() ? ascii() : ""; }
    #endif

        static TQString fromUcs2( const unsigned short *ucs2 );
        const unsigned short *ucs2() const;

        TQString &setUnicode( const TQChar* unicode, uint len );
        TQString &setUnicodeCodes( const ushort* unicode_as_ushorts, uint len );
        TQString &setAscii( const char*, int len=-1 );
        TQString &setLatin1( const char*, int len=-1 );

        int compare( const TQString& s ) const;
        static int compare( const TQString& s1, const TQString& s2 )
        { return s1.compare( s2 ); }

        int localeAwareCompare( const TQString& s ) const;
        static int localeAwareCompare( const TQString& s1, const TQString& s2 )
        { return s1.localeAwareCompare( s2 ); }

    #ifndef TQT_NO_DATASTREAM
        friend TQ_EXPORT TQDataStream &operator>>( TQDataStream &, TQString & );
    #endif

        void compose();

    #ifndef TQT_NO_COMPAT
        const char* data() const { return ascii(); }
    #endif

    #if defined(Q_QDOC)
        bool startsWith( const TQString& str, bool cs = TRUE ) const;
        bool endsWith( const TQString& str, bool cs = TRUE ) const;
    #else
        // ### TQt 4.0: merge these two into one, and remove Q_QDOC hack
        bool startsWith( const TQString& str ) const;
        bool startsWith( const TQString& str, bool cs ) const;

        // ### TQt 4.0: merge these two into one, and remove Q_QDOC hack
        bool endsWith( const TQString& str ) const;
        bool endsWith( const TQString& str, bool cs ) const;
    #endif

        void setLength( uint newLength );

        uint capacity() const;
        void reserve( uint minCapacity );
        void squeeze();

        bool simpleText() const { if ( !d->issimpletext ) checkSimpleText(); return (bool)d->issimpletext; }
        bool isRightToLeft() const;

    private:
        TQString( int size, bool /* dummy */ );	// allocate size incl. \0

        void deref();
        void real_detach();
        void subat( uint );
        TQString multiArg( int numArgs, const TQString& a1, const TQString& a2,
    		      const TQString& a3 = TQString::null,
    		      const TQString& a4 = TQString::null ) const;

        void checkSimpleText() const;
        void grow( uint newLength );
    #ifndef TQT_NO_CAST_ASCII
        TQString &insertHelper( uint index, const char *s, uint len=UINT_MAX );
        TQString &operatorPlusEqHelper( const char *s, uint len2=UINT_MAX );
    #endif

        static TQChar* latin1ToUnicode( const char*, uint * len, uint maxlen=(uint)-1 );
        static TQChar* latin1ToUnicode( const TQByteArray&, uint * len );
        static char* unicodeToLatin1( const TQChar*, uint len );

        TQStringData *d;
        static TQStringData* shared_null;
        static TQStringData* makeSharedNull();

        friend class TQConstString;
        friend class TQTextStream;
        TQString( TQStringData* dd, bool /* dummy */ ) : d(dd) { }

        // needed for TQDeepCopy
        void detach();
        friend class TQDeepCopy<TQString>;
    };

    class TQ_EXPORT TQCharRef {
        friend class TQString;
        TQString& s;
        uint p;
        TQCharRef(TQString* str, uint pos) : s(*str), p(pos) { }

    public:
        // most TQChar operations repeated here

        // all this is not documented: We just say "like TQChar" and let it be.
    #ifndef Q_QDOC
        ushort unicode() const { return s.constref(p).unicode(); }
        char latin1() const { return s.constref(p).latin1(); }

        // An operator= for each TQChar cast constructors
        TQCharRef operator=(char c ) { s.ref(p)=c; return *this; }
        TQCharRef operator=(uchar c ) { s.ref(p)=c; return *this; }
        TQCharRef operator=(TQChar c ) { s.ref(p)=c; return *this; }
        TQCharRef operator=(const TQCharRef& c ) { s.ref(p)=c.unicode(); return *this; }
        TQCharRef operator=(ushort rc ) { s.ref(p)=rc; return *this; }
        TQCharRef operator=(short rc ) { s.ref(p)=rc; return *this; }
        TQCharRef operator=(uint rc ) { s.ref(p)=rc; return *this; }
        TQCharRef operator=(int rc ) { s.ref(p)=rc; return *this; }

        operator TQChar () const { return s.constref(p); }

        // each function...
        bool isNull() const { return unicode()==0; }
        bool isPrint() const { return s.constref(p).isPrint(); }
        bool isPunct() const { return s.constref(p).isPunct(); }
        bool isSpace() const { return s.constref(p).isSpace(); }
        bool isMark() const { return s.constref(p).isMark(); }
        bool isLetter() const { return s.constref(p).isLetter(); }
        bool isNumber() const { return s.constref(p).isNumber(); }
        bool isLetterOrNumber() { return s.constref(p).isLetterOrNumber(); }
        bool isDigit() const { return s.constref(p).isDigit(); }

        int digitValue() const { return s.constref(p).digitValue(); }
        TQChar lower() const { return s.constref(p).lower(); }
        TQChar upper() const { return s.constref(p).upper(); }

        TQChar::Category category() const { return s.constref(p).category(); }
        TQChar::Direction direction() const { return s.constref(p).direction(); }
        TQChar::Joining joining() const { return s.constref(p).joining(); }
        bool mirrored() const { return s.constref(p).mirrored(); }
        TQChar mirroredChar() const { return s.constref(p).mirroredChar(); }
        const TQString &decomposition() const { return s.constref(p).decomposition(); }
        TQChar::Decomposition decompositionTag() const { return s.constref(p).decompositionTag(); }
        unsigned char combiningClass() const { return s.constref(p).combiningClass(); }

        // Not the non-const ones of these.
        uchar cell() const { return s.constref(p).cell(); }
        uchar row() const { return s.constref(p).row(); }
    #endif
    };

    inline TQCharRef TQString::at( uint i ) { return TQCharRef(this,i); }
    inline TQCharRef TQString::operator[]( int i ) { return at((uint)i); }

    class TQ_EXPORT TQConstString : private TQString {
    public:
        TQConstString( const TQChar* unicode, uint length );
        ~TQConstString();
        const TQString& string() const { return *this; }
    };

    /*****************************************************************************
      TQString stream functions
     *****************************************************************************/
    #ifndef TQT_NO_DATASTREAM
    TQ_EXPORT TQDataStream &operator<<( TQDataStream &, const TQString & );
    TQ_EXPORT TQDataStream &operator>>( TQDataStream &, TQString & );
    #endif

    /*****************************************************************************
      TQString inline functions
     *****************************************************************************/

    // These two move code into makeSharedNull() and deletesData()
    // to improve cache-coherence (and reduce code bloat), while
    // keeping the common cases fast.
    //
    // No safe way to pre-init shared_null on ALL compilers/linkers.
    inline TQString::TQString() :
        d(shared_null ? shared_null : makeSharedNull())
    {
        d->ref();
    }
    //
    inline TQString::~TQString()
    {
        if ( d->deref() ) {
            if ( d != shared_null )
    	    d->deleteSelf();
        }
    }

    // needed for TQDeepCopy
    inline void TQString::detach()
    { real_detach(); }

    inline TQString TQString::section( TQChar sep, int start, int end, int flags ) const
    { return section(TQString(sep), start, end, flags); }

    inline TQString TQString::section( char sep, int start, int end, int flags ) const
    { return section(TQChar(sep), start, end, flags); }

    #ifndef TQT_NO_CAST_ASCII
    inline TQString TQString::section( const char *in_sep, int start, int end, int flags ) const
    { return section(TQString(in_sep), start, end, flags); }
    #endif

    inline TQString &TQString::operator=( TQChar c )
    { *this = TQString(c); return *this; }

    inline TQString &TQString::operator=( char c )
    { *this = TQString(TQChar(c)); return *this; }

    inline bool TQString::isNull() const
    { return unicode() == 0; }

    inline bool TQString::operator!() const
    { return isNull(); }

    inline uint TQString::length() const
    { return d->len; }

    inline uint TQString::capacity() const
    { return d->maxl; }

    inline bool TQString::isEmpty() const
    { return length() == 0; }

    inline TQString TQString::copy() const
    { return TQString( *this ); }

    #ifndef TQT_NO_CAST_ASCII
    inline TQString &TQString::insert( uint index, const char *s )
    { return insertHelper( index, s ); }

    inline TQString &TQString::insert( uint index, const TQByteArray &s )
    {
        int pos = s.find( 0 );
        return insertHelper( index, s, pos==-1 ? s.size() : pos );
    }
    #endif

    inline TQString &TQString::prepend( const TQString & s )
    { return insert(0,s); }

    inline TQString &TQString::prepend( TQChar c )
    { return insert(0,c); }

    inline TQString &TQString::prepend( char c )
    { return insert(0,c); }

    #ifndef TQT_NO_CAST_ASCII
    inline TQString &TQString::prepend( const TQByteArray & s )
    { return insert(0,s); }
    #endif

    #ifndef TQT_NO_CAST_ASCII
    inline TQString &TQString::operator+=( const TQByteArray &s )
    {
        int pos = s.find( 0 );
        return operatorPlusEqHelper( s, pos==-1 ? s.size() : pos );
    }
    #endif

    inline TQString &TQString::append( const TQString & s )
    { return operator+=(s); }

    #ifndef TQT_NO_CAST_ASCII
    inline TQString &TQString::append( const TQByteArray &s )
    { return operator+=(s); }

    inline TQString &TQString::append( const char * s )
    { return operator+=(s); }
    #endif

    inline TQString &TQString::append( TQChar c )
    { return operator+=(c); }

    inline TQString &TQString::append( char c )
    { return operator+=(c); }

    #ifndef TQT_NO_STL
    inline TQString &TQString::operator=( const std::string& str )
    { return operator=(str.c_str()); }
    #ifndef TQT_NO_CAST_ASCII
    inline TQString &TQString::operator+=( const std::string& s )
    { return operator+=(s.c_str()); }
    inline TQString &TQString::append( const std::string& s )
    { return operator+=(s); }
    inline TQString &TQString::prepend( const std::string& s )
    { return insert(0, s); }
    #endif
    #endif

    inline TQString &TQString::setNum( short n, int base )
    { return setNum((TQ_LLONG)n, base); }

    inline TQString &TQString::setNum( ushort n, int base )
    { return setNum((TQ_ULLONG)n, base); }

    inline TQString &TQString::setNum( int n, int base )
    { return setNum((TQ_LLONG)n, base); }

    inline TQString &TQString::setNum( uint n, int base )
    { return setNum((TQ_ULLONG)n, base); }

    inline TQString &TQString::setNum( float n, char f, int prec )
    { return setNum((double)n,f,prec); }

    inline TQString TQString::arg( int a, int fieldWidth, int base ) const
    { return arg( (TQ_LLONG)a, fieldWidth, base ); }

    inline TQString TQString::arg( uint a, int fieldWidth, int base ) const
    { return arg( (TQ_ULLONG)a, fieldWidth, base ); }

    inline TQString TQString::arg( short a, int fieldWidth, int base ) const
    { return arg( (TQ_LLONG)a, fieldWidth, base ); }

    inline TQString TQString::arg( ushort a, int fieldWidth, int base ) const
    { return arg( (TQ_ULLONG)a, fieldWidth, base ); }

    inline TQString TQString::arg( const TQString& a1, const TQString& a2 ) const {
        return multiArg( 2, a1, a2 );
    }

    inline TQString TQString::arg( const TQString& a1, const TQString& a2,
    			     const TQString& a3 ) const {
        return multiArg( 3, a1, a2, a3 );
    }

    inline TQString TQString::arg( const TQString& a1, const TQString& a2,
    			     const TQString& a3, const TQString& a4 ) const {
        return multiArg( 4, a1, a2, a3, a4 );
    }

    inline int TQString::find( char c, int index, bool cs ) const
    { return find(TQChar(c), index, cs); }

    inline int TQString::findRev( char c, int index, bool cs ) const
    { return findRev( TQChar(c), index, cs ); }

    #ifndef TQT_NO_CAST_ASCII
    inline int TQString::find( const char* str, int index ) const
    { return find(TQString::fromAscii(str), index); }

    inline int TQString::findRev( const char* str, int index ) const
    { return findRev(TQString::fromAscii(str), index); }
    #endif

    /*****************************************************************************
      TQString non-member operators
     *****************************************************************************/

    TQ_EXPORT bool operator!=( const TQString &s1, const TQString &s2 );
    TQ_EXPORT bool operator<( const TQString &s1, const TQString &s2 );
    TQ_EXPORT bool operator<=( const TQString &s1, const TQString &s2 );
    TQ_EXPORT bool operator==( const TQString &s1, const TQString &s2 );
    TQ_EXPORT bool operator>( const TQString &s1, const TQString &s2 );
    TQ_EXPORT bool operator>=( const TQString &s1, const TQString &s2 );
    #ifndef TQT_NO_CAST_ASCII
    TQ_EXPORT bool operator!=( const TQString &s1, const char *s2 );
    TQ_EXPORT bool operator<( const TQString &s1, const char *s2 );
    TQ_EXPORT bool operator<=( const TQString &s1, const char *s2 );
    TQ_EXPORT bool operator==( const TQString &s1, const char *s2 );
    TQ_EXPORT bool operator>( const TQString &s1, const char *s2 );
    TQ_EXPORT bool operator>=( const TQString &s1, const char *s2 );
    TQ_EXPORT bool operator!=( const char *s1, const TQString &s2 );
    TQ_EXPORT bool operator<( const char *s1, const TQString &s2 );
    TQ_EXPORT bool operator<=( const char *s1, const TQString &s2 );
    TQ_EXPORT bool operator==( const char *s1, const TQString &s2 );
    //TQ_EXPORT bool operator>( const char *s1, const TQString &s2 ); // MSVC++
    TQ_EXPORT bool operator>=( const char *s1, const TQString &s2 );
    #endif

    TQ_EXPORT inline const TQString operator+( const TQString &s1, const TQString &s2 )
    {
        TQString tmp( s1 );
        tmp += s2;
        return tmp;
    }

    #ifndef TQT_NO_CAST_ASCII
    TQ_EXPORT inline const TQString operator+( const TQString &s1, const char *s2 )
    {
        TQString tmp( s1 );
        tmp += TQString::fromAscii(s2);
        return tmp;
    }

    TQ_EXPORT inline const TQString operator+( const char *s1, const TQString &s2 )
    {
        TQString tmp = TQString::fromAscii( s1 );
        tmp += s2;
        return tmp;
    }
    #endif

    TQ_EXPORT inline const TQString operator+( const TQString &s1, TQChar c2 )
    {
        TQString tmp( s1 );
        tmp += c2;
        return tmp;
    }

    TQ_EXPORT inline const TQString operator+( const TQString &s1, char c2 )
    {
        TQString tmp( s1 );
        tmp += c2;
        return tmp;
    }

    TQ_EXPORT inline const TQString operator+( TQChar c1, const TQString &s2 )
    {
        TQString tmp;
        tmp += c1;
        tmp += s2;
        return tmp;
    }

    TQ_EXPORT inline const TQString operator+( char c1, const TQString &s2 )
    {
        TQString tmp;
        tmp += c1;
        tmp += s2;
        return tmp;
    }

    #ifndef TQT_NO_STL
    TQ_EXPORT inline const TQString operator+(const TQString& s1, const std::string& s2)
    {
        return s1 + TQString(s2);
    }

    TQ_EXPORT inline const TQString operator+(const std::string& s1, const TQString& s2)
    {
        TQString tmp(s2);
        return TQString(tmp.prepend(s1));
    }
    #endif

    #if defined(Q_OS_WIN32)
    extern TQ_EXPORT TQString qt_winTQString(void*);
    extern TQ_EXPORT const void* qt_winTchar(const TQString& str, bool addnul);
    extern TQ_EXPORT void* qt_winTchar_new(const TQString& str);
    extern TQ_EXPORT TQCString qt_winTQString2MB( const TQString& s, int len=-1 );
    extern TQ_EXPORT TQString qt_winMB2TQString( const char* mb, int len=-1 );
    #endif

    #define Q_DEFINED_QSTRING
    #include "ntqwinexport.h"
    #endif // TQSTRING_H