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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Qt Toolkit - qstring.h include file</title><style type="text/css"><!--h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; }a:link { color: #004faf; text-decoration: none }a:visited { color: #672967; text-decoration: none }body { background: white; color: black; }--></style></head><body bgcolor="#ffffff"><table width="100%"><tr><td><a href="index.html"><img width="100" height="100" src="qtlogo.png"alt="Home" border="0"><img width="100"height="100" src="face.png" alt="Home" border="0"></a><td valign="top"><div align="right"><img src="dochead.png" width="472" height="27"><br><a href="classes.html"><b>Classes</b></a>- <a href="annotated.html">Annotated</a>- <a href="hierarchy.html">Tree</a>- <a href="functions.html">Functions</a>- <a href="index.html">Home</a>- <a href="topicals.html"><b>Structure</b> <font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" align="center" size=32>Qte</font></a></div></table><h1 align=center>qstring.h</h1><br clear="all">This is the verbatim text of the qstring.h include file. It isprovided only for illustration; the copyrightremains with Trolltech.<hr><pre>/****************************************************************************** $Id: qt/src/tools/qstring.h 2.3.8 edited 2004-05-12 $**** Definition of the QString class, and related Unicode** functions.**** Created : 920609**** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.**** This file is part of the tools module of the Qt GUI Toolkit.**** This file may be distributed under the terms of the Q Public License** as defined by Trolltech AS of Norway and appearing in the file** LICENSE.QPL included in the packaging of this file.**** This file may be distributed and/or modified under the terms of the** GNU General Public License version 2 as published by the Free Software** Foundation and appearing in the file LICENSE.GPL included in the** packaging of this file.**** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition** licenses may use this file in accordance with the Qt Commercial License** Agreement provided with the Software.**** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.**** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for** information about Qt Commercial License Agreements.** See http://www.trolltech.com/qpl/ for QPL licensing information.** See http://www.trolltech.com/gpl/ for GPL licensing information.**** Contact info@trolltech.com if any conditions of this licensing are** not clear to you.************************************************************************/#ifndef QSTRING_H#define QSTRING_H#ifndef QT_H#include "qcstring.h"#endif // QT_H/***************************************************************************** QString class *****************************************************************************/class <a href="qregexp.html">QRegExp</a>;class <a href="qstring.html">QString</a>;class <a href="qcharref.html">QCharRef</a>;class Q_EXPORT <a href="qchar.html">QChar</a> {public: QChar(); QChar( char c ); QChar( uchar c ); QChar( uchar c, uchar r ); QChar( const QChar& c ); QChar( ushort rc ); QChar( short rc ); QChar( uint rc ); QChar( int rc ); QT_STATIC_CONST QChar null; // 0000 QT_STATIC_CONST QChar replacement; // FFFD QT_STATIC_CONST QChar byteOrderMark; // FEFF QT_STATIC_CONST QChar byteOrderSwapped; // FFFE QT_STATIC_CONST QChar 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_Dask, // 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 }; 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 }; // ****** WHEN ADDING FUNCTIONS, CONSIDER ADDING TO QCharRef TOO int digitValue() const; QChar lower() const; QChar upper() const; Category category() const; Direction direction() const; Joining joining() const; bool mirrored() const; QChar mirroredChar() const; QString decomposition() const; Decomposition decompositionTag() const; char latin1() const { return rw ? 0 : cl; } ushort unicode() const { return (rw << 8) | cl; }#ifndef QT_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; uchar& cell() { return cl; } uchar& row() { return rw; } uchar cell() const { return cl; } uchar row() const { return rw; } static bool networkOrdered() { return (int)net_ordered == 1; } friend inline int operator==( char ch, QChar c ); friend inline int operator==( QChar c, char ch ); friend inline int operator==( QChar c1, QChar c2 ); friend inline int operator!=( QChar c1, QChar c2 ); friend inline int operator!=( char ch, QChar c ); friend inline int operator!=( QChar c, char ch ); friend inline int operator<=( QChar c, char ch ); friend inline int operator<=( char ch, QChar c ); friend inline int operator<=( QChar c1, QChar c2 );private:#if defined(_WS_X11_) || defined(_OS_WIN32_BYTESWAP_) || defined( _WS_QWS_ ) // XChar2b on X11, ushort on _OS_WIN32_BYTESWAP_ //### QWS must be defined on a platform by platform basis uchar rw; uchar cl;#if defined(QT_QSTRING_UCS_4) ushort grp;#endif enum { net_ordered = 1 };#else // ushort on _OS_WIN32_ uchar cl; uchar rw;#if defined(QT_QSTRING_UCS_4) ushort grp;#endif enum { net_ordered = 0 };#endif} Q_PACKED;inline QChar::QChar(){ rw = 0; cl = 0;#ifdef QT_QSTRING_UCS_4 grp = 0;#endif}inline QChar::QChar( char c ){ rw = 0; cl = (uchar)c;#ifdef QT_QSTRING_UCS_4 grp = 0;#endif}inline QChar::QChar( uchar c ){ rw = 0; cl = c;#ifdef QT_QSTRING_UCS_4 grp = 0;#endif}inline QChar::QChar( uchar c, uchar r ){ rw = r; cl = c;#ifdef QT_QSTRING_UCS_4 grp = 0;#endif}inline QChar::QChar( const QChar& c ){ rw = c.rw; cl = c.cl;#ifdef QT_QSTRING_UCS_4 grp = 0;#endif}inline QChar::QChar( ushort rc ){ rw = (uchar)((rc>>8)&0xff); cl = (uchar)(rc&0xff);#ifdef QT_QSTRING_UCS_4 grp = 0;#endif}inline QChar::QChar( short rc ){ rw = (uchar)((rc>>8)&0xff); cl = (uchar)(rc&0xff);#ifdef QT_QSTRING_UCS_4 grp = 0;#endif}inline QChar::QChar( uint rc ){ rw = (uchar)((rc>>8)&0xff); cl = (uchar)(rc&0xff);#ifdef QT_QSTRING_UCS_4 grp = 0;#endif}inline QChar::QChar( int rc ){ rw = (uchar)((rc>>8)&0xff); cl = (uchar)(rc&0xff);#ifdef QT_QSTRING_UCS_4 grp = 0;#endif}inline int operator==( char ch, QChar c ){ return ch == c.cl && !c.rw;}inline int operator==( QChar c, char ch ){ return ch == c.cl && !c.rw;}inline int operator==( QChar c1, QChar c2 ){ return c1.cl == c2.cl && c1.rw == c2.rw;}inline int operator!=( QChar c1, QChar c2 ){ return c1.cl != c2.cl || c1.rw != c2.rw;}inline int operator!=( char ch, QChar c ){ return ch != c.cl || c.rw;}inline int operator!=( QChar c, char ch ){ return ch != c.cl || c.rw;}inline int operator<=( QChar c, char ch ){ return !(ch < c.cl || c.rw);}inline int operator<=( char ch, QChar c ){ return ch <= c.cl || c.rw;}inline int operator<=( QChar c1, QChar c2 ){ return c1.rw > c2.rw ? FALSE : c1.rw < c2.rw ? TRUE : c1.cl <= c2.cl;}inline int operator>=( QChar c, char ch ) { return ch <= c; }inline int operator>=( char ch, QChar c ) { return c <= ch; }inline int operator>=( QChar c1, QChar c2 ) { return c2 <= c1; }inline int operator<( QChar c, char ch ) { return !(ch<=c); }inline int operator<( char ch, QChar c ) { return !(c<=ch); }inline int operator<( QChar c1, QChar c2 ) { return !(c2<=c1); }inline int operator>( QChar c, char ch ) { return !(ch>=c); }inline int operator>( char ch, QChar c ) { return !(c>=ch); }inline int operator>( QChar c1, QChar c2 ) { return !(c2>=c1); }// internalstruct Q_EXPORT QStringData : public <a href="qshared.html">QShared</a> { QStringData() : unicode(0), ascii(0), len(0), maxl(0), dirtyascii(0) { ref(); } QStringData(QChar *u, uint l, uint m) : unicode(u), ascii(0), len(l), maxl(m), dirtyascii(0) { } ~QStringData() { if ( unicode ) delete[] ((char*)unicode); if ( ascii ) delete[] ascii; } void deleteSelf(); QChar *unicode; char *ascii; uint len; uint maxl:30; uint dirtyascii:1;};class Q_EXPORT <a href="qstring.html">QString</a>{public: QString(); // make null string QString( QChar ); // one-char string QString( const QString & ); // impl-shared copy QString( const QByteArray& ); // deep copy QString( const QChar* unicode, uint length ); // deep copy#ifndef QT_NO_CAST_ASCII QString( const char *str ); // deep copy#endif ~QString(); QString &operator=( const QString & ); // impl-shared copy#ifndef QT_NO_CAST_ASCII QString &operator=( const char * ); // deep copy#endif QString &operator=( const QCString& ); // deep copy QString &operator=( QChar c ); QString &operator=( char c ); QT_STATIC_CONST QString null; bool isNull() const; bool isEmpty() const; uint length() const; void truncate( uint pos );#if QT_VERSION >= 300#error "fill() Should return *this, or QChar constructor should take count=1"#endif void fill( QChar c, int len = -1 ); QString copy() const; QString arg(long a, int fieldwidth=0, int base=10) const; QString arg(ulong a, int fieldwidth=0, int base=10) const; QString arg(int a, int fieldwidth=0, int base=10) const; QString arg(uint a, int fieldwidth=0, int base=10) const; QString arg(short a, int fieldwidth=0, int base=10) const; QString arg(ushort a, int fieldwidth=0, int base=10) const; QString arg(char a, int fieldwidth=0) const; QString arg(QChar a, int fieldwidth=0) const; QString arg(const QString& a, int fieldwidth=0) const; QString arg(double a, int fieldwidth=0, char fmt='g', int prec=-1) const; QString &sprintf( const char* format, ... )#if defined(_CC_GNU_) && !defined(__INSURE__) __attribute__ ((format (printf, 2, 3)))#endif⌨️ 快捷键说明
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