source: trunk/include/qcstring.h@ 196

Last change on this file since 196 was 2, checked in by dmik, 20 years ago

Imported xplatform parts of the official release 3.3.1 from Trolltech

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1/****************************************************************************
2** $Id: qcstring.h 2 2005-11-16 15:49:26Z dmik $
3**
4** Definition of the extended char array operations,
5** and QByteArray and QCString classes
6**
7** Created : 920609
8**
9** Copyright (C) 1992-2002 Trolltech AS. All rights reserved.
10**
11** This file is part of the tools module of the Qt GUI Toolkit.
12**
13** This file may be distributed under the terms of the Q Public License
14** as defined by Trolltech AS of Norway and appearing in the file
15** LICENSE.QPL included in the packaging of this file.
16**
17** This file may be distributed and/or modified under the terms of the
18** GNU General Public License version 2 as published by the Free Software
19** Foundation and appearing in the file LICENSE.GPL included in the
20** packaging of this file.
21**
22** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
23** licenses may use this file in accordance with the Qt Commercial License
24** Agreement provided with the Software.
25**
26** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
27** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
28**
29** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
30** information about Qt Commercial License Agreements.
31** See http://www.trolltech.com/qpl/ for QPL licensing information.
32** See http://www.trolltech.com/gpl/ for GPL licensing information.
33**
34** Contact info@trolltech.com if any conditions of this licensing are
35** not clear to you.
36**
37**********************************************************************/
38
39#ifndef QCSTRING_H
40#define QCSTRING_H
41
42#ifndef QT_H
43#include "qmemarray.h"
44#endif // QT_H
45
46#include <string.h>
47
48
49/*****************************************************************************
50 Safe and portable C string functions; extensions to standard string.h
51 *****************************************************************************/
52
53Q_EXPORT void *qmemmove( void *dst, const void *src, uint len );
54
55Q_EXPORT char *qstrdup( const char * );
56
57Q_EXPORT inline uint qstrlen( const char *str )
58{ return str ? (uint)strlen(str) : 0u; }
59
60Q_EXPORT inline char *qstrcpy( char *dst, const char *src )
61{ return src ? strcpy(dst, src) : 0; }
62
63Q_EXPORT char *qstrncpy( char *dst, const char *src, uint len );
64
65Q_EXPORT inline int qstrcmp( const char *str1, const char *str2 )
66{
67 return ( str1 && str2 ) ? strcmp( str1, str2 )
68 : ( str1 ? 1 : ( str2 ? -1 : 0 ) );
69}
70
71Q_EXPORT inline int qstrncmp( const char *str1, const char *str2, uint len )
72{
73 return ( str1 && str2 ) ? strncmp( str1, str2, len )
74 : ( str1 ? 1 : ( str2 ? -1 : 0 ) );
75}
76
77Q_EXPORT int qstricmp( const char *, const char * );
78
79Q_EXPORT int qstrnicmp( const char *, const char *, uint len );
80
81#ifndef QT_CLEAN_NAMESPACE
82Q_EXPORT inline uint cstrlen( const char *str )
83{ return (uint)strlen(str); }
84
85Q_EXPORT inline char *cstrcpy( char *dst, const char *src )
86{ return strcpy(dst,src); }
87
88Q_EXPORT inline int cstrcmp( const char *str1, const char *str2 )
89{ return strcmp(str1,str2); }
90
91Q_EXPORT inline int cstrncmp( const char *str1, const char *str2, uint len )
92{ return strncmp(str1,str2,len); }
93#endif
94
95
96// qChecksum: Internet checksum
97
98Q_EXPORT Q_UINT16 qChecksum( const char *s, uint len );
99
100/*****************************************************************************
101 QByteArray class
102 *****************************************************************************/
103
104#if defined(Q_QDOC)
105/*
106 We want qdoc to document QByteArray as a real class that inherits
107 QMemArray<char> and that is inherited by QBitArray.
108*/
109class QByteArray : public QMemArray<char>
110{
111public:
112 QByteArray();
113 QByteArray( int size );
114};
115#else
116typedef QMemArray<char> QByteArray;
117#endif
118
119#ifndef QT_NO_COMPRESS
120Q_EXPORT QByteArray qCompress( const uchar* data, int nbytes );
121Q_EXPORT QByteArray qUncompress( const uchar* data, int nbytes );
122Q_EXPORT inline QByteArray qCompress( const QByteArray& data)
123{ return qCompress( (const uchar*)data.data(), data.size() ); }
124Q_EXPORT inline QByteArray qUncompress( const QByteArray& data )
125{ return qUncompress( (const uchar*)data.data(), data.size() ); }
126#endif
127
128/*****************************************************************************
129 QByteArray stream functions
130 *****************************************************************************/
131#ifndef QT_NO_DATASTREAM
132Q_EXPORT QDataStream &operator<<( QDataStream &, const QByteArray & );
133Q_EXPORT QDataStream &operator>>( QDataStream &, QByteArray & );
134#endif
135
136/*****************************************************************************
137 QCString class
138 *****************************************************************************/
139
140class QRegExp;
141
142class Q_EXPORT QCString : public QByteArray // C string class
143{
144public:
145 QCString() {} // make null string
146 QCString( int size ); // allocate size incl. \0
147 QCString( const QCString &s ) : QByteArray( s ) {}
148 QCString( const char *str ); // deep copy
149 QCString( const char *str, uint maxlen ); // deep copy, max length
150 ~QCString();
151
152 QCString &operator=( const QCString &s );// shallow copy
153 QCString &operator=( const char *str ); // deep copy
154
155 bool isNull() const;
156 bool isEmpty() const;
157 uint length() const;
158 bool resize( uint newlen );
159 bool truncate( uint pos );
160 bool fill( char c, int len = -1 );
161
162 QCString copy() const;
163
164 QCString &sprintf( const char *format, ... );
165
166 int find( char c, int index=0, bool cs=TRUE ) const;
167 int find( const char *str, int index=0, bool cs=TRUE ) const;
168#ifndef QT_NO_REGEXP
169 int find( const QRegExp &, int index=0 ) const;
170#endif
171 int findRev( char c, int index=-1, bool cs=TRUE) const;
172 int findRev( const char *str, int index=-1, bool cs=TRUE) const;
173#ifndef QT_NO_REGEXP_CAPTURE
174 int findRev( const QRegExp &, int index=-1 ) const;
175#endif
176 int contains( char c, bool cs=TRUE ) const;
177 int contains( const char *str, bool cs=TRUE ) const;
178#ifndef QT_NO_REGEXP
179 int contains( const QRegExp & ) const;
180#endif
181 QCString left( uint len ) const;
182 QCString right( uint len ) const;
183 QCString mid( uint index, uint len=0xffffffff) const;
184
185 QCString leftJustify( uint width, char fill=' ', bool trunc=FALSE)const;
186 QCString rightJustify( uint width, char fill=' ',bool trunc=FALSE)const;
187
188 QCString lower() const;
189 QCString upper() const;
190
191 QCString stripWhiteSpace() const;
192 QCString simplifyWhiteSpace() const;
193
194 QCString &insert( uint index, const char * );
195 QCString &insert( uint index, char );
196 QCString &append( const char * );
197 QCString &prepend( const char * );
198 QCString &remove( uint index, uint len );
199 QCString &replace( uint index, uint len, const char * );
200#ifndef QT_NO_REGEXP
201 QCString &replace( const QRegExp &, const char * );
202#endif
203 QCString &replace( char c, const char *after );
204 QCString &replace( const char *, const char * );
205 QCString &replace( char, char );
206
207 short toShort( bool *ok=0 ) const;
208 ushort toUShort( bool *ok=0 ) const;
209 int toInt( bool *ok=0 ) const;
210 uint toUInt( bool *ok=0 ) const;
211 long toLong( bool *ok=0 ) const;
212 ulong toULong( bool *ok=0 ) const;
213 float toFloat( bool *ok=0 ) const;
214 double toDouble( bool *ok=0 ) const;
215
216 QCString &setStr( const char *s );
217 QCString &setNum( short );
218 QCString &setNum( ushort );
219 QCString &setNum( int );
220 QCString &setNum( uint );
221 QCString &setNum( long );
222 QCString &setNum( ulong );
223 QCString &setNum( float, char f='g', int prec=6 );
224 QCString &setNum( double, char f='g', int prec=6 );
225
226 bool setExpand( uint index, char c );
227
228 operator const char *() const;
229 QCString &operator+=( const char *str );
230 QCString &operator+=( char c );
231private:
232 int find( const char *str, int index, bool cs, uint l ) const;
233};
234
235
236/*****************************************************************************
237 QCString stream functions
238 *****************************************************************************/
239#ifndef QT_NO_DATASTREAM
240Q_EXPORT QDataStream &operator<<( QDataStream &, const QCString & );
241Q_EXPORT QDataStream &operator>>( QDataStream &, QCString & );
242#endif
243
244/*****************************************************************************
245 QCString inline functions
246 *****************************************************************************/
247
248inline QCString &QCString::operator=( const QCString &s )
249{ return (QCString&)assign( s ); }
250
251inline QCString &QCString::operator=( const char *str )
252{ return (QCString&)duplicate( str, qstrlen(str)+1 ); }
253
254inline bool QCString::isNull() const
255{ return data() == 0; }
256
257inline bool QCString::isEmpty() const
258{ return data() == 0 || *data() == '\0'; }
259
260inline uint QCString::length() const
261{ return qstrlen( data() ); }
262
263inline bool QCString::truncate( uint pos )
264{ return resize(pos+1); }
265
266inline QCString QCString::copy() const
267{ return QCString( data() ); }
268
269inline QCString &QCString::prepend( const char *s )
270{ return insert(0,s); }
271
272inline QCString &QCString::append( const char *s )
273{ return operator+=(s); }
274
275inline QCString &QCString::setNum( short n )
276{ return setNum((long)n); }
277
278inline QCString &QCString::setNum( ushort n )
279{ return setNum((ulong)n); }
280
281inline QCString &QCString::setNum( int n )
282{ return setNum((long)n); }
283
284inline QCString &QCString::setNum( uint n )
285{ return setNum((ulong)n); }
286
287inline QCString &QCString::setNum( float n, char f, int prec )
288{ return setNum((double)n,f,prec); }
289
290inline QCString::operator const char *() const
291{ return (const char *)data(); }
292
293
294/*****************************************************************************
295 QCString non-member operators
296 *****************************************************************************/
297
298Q_EXPORT inline bool operator==( const QCString &s1, const QCString &s2 )
299{ return qstrcmp( s1.data(), s2.data() ) == 0; }
300
301Q_EXPORT inline bool operator==( const QCString &s1, const char *s2 )
302{ return qstrcmp( s1.data(), s2 ) == 0; }
303
304Q_EXPORT inline bool operator==( const char *s1, const QCString &s2 )
305{ return qstrcmp( s1, s2.data() ) == 0; }
306
307Q_EXPORT inline bool operator!=( const QCString &s1, const QCString &s2 )
308{ return qstrcmp( s1.data(), s2.data() ) != 0; }
309
310Q_EXPORT inline bool operator!=( const QCString &s1, const char *s2 )
311{ return qstrcmp( s1.data(), s2 ) != 0; }
312
313Q_EXPORT inline bool operator!=( const char *s1, const QCString &s2 )
314{ return qstrcmp( s1, s2.data() ) != 0; }
315
316Q_EXPORT inline bool operator<( const QCString &s1, const QCString& s2 )
317{ return qstrcmp( s1.data(), s2.data() ) < 0; }
318
319Q_EXPORT inline bool operator<( const QCString &s1, const char *s2 )
320{ return qstrcmp( s1.data(), s2 ) < 0; }
321
322Q_EXPORT inline bool operator<( const char *s1, const QCString &s2 )
323{ return qstrcmp( s1, s2.data() ) < 0; }
324
325Q_EXPORT inline bool operator<=( const QCString &s1, const QCString &s2 )
326{ return qstrcmp( s1.data(), s2.data() ) <= 0; }
327
328Q_EXPORT inline bool operator<=( const QCString &s1, const char *s2 )
329{ return qstrcmp( s1.data(), s2 ) <= 0; }
330
331Q_EXPORT inline bool operator<=( const char *s1, const QCString &s2 )
332{ return qstrcmp( s1, s2.data() ) <= 0; }
333
334Q_EXPORT inline bool operator>( const QCString &s1, const QCString &s2 )
335{ return qstrcmp( s1.data(), s2.data() ) > 0; }
336
337Q_EXPORT inline bool operator>( const QCString &s1, const char *s2 )
338{ return qstrcmp( s1.data(), s2 ) > 0; }
339
340Q_EXPORT inline bool operator>( const char *s1, const QCString &s2 )
341{ return qstrcmp( s1, s2.data() ) > 0; }
342
343Q_EXPORT inline bool operator>=( const QCString &s1, const QCString& s2 )
344{ return qstrcmp( s1.data(), s2.data() ) >= 0; }
345
346Q_EXPORT inline bool operator>=( const QCString &s1, const char *s2 )
347{ return qstrcmp( s1.data(), s2 ) >= 0; }
348
349Q_EXPORT inline bool operator>=( const char *s1, const QCString &s2 )
350{ return qstrcmp( s1, s2.data() ) >= 0; }
351
352Q_EXPORT inline const QCString operator+( const QCString &s1,
353 const QCString &s2 )
354{
355 QCString tmp( s1.data() );
356 tmp += s2;
357 return tmp;
358}
359
360Q_EXPORT inline const QCString operator+( const QCString &s1, const char *s2 )
361{
362 QCString tmp( s1.data() );
363 tmp += s2;
364 return tmp;
365}
366
367Q_EXPORT inline const QCString operator+( const char *s1, const QCString &s2 )
368{
369 QCString tmp( s1 );
370 tmp += s2;
371 return tmp;
372}
373
374Q_EXPORT inline const QCString operator+( const QCString &s1, char c2 )
375{
376 QCString tmp( s1.data() );
377 tmp += c2;
378 return tmp;
379}
380
381Q_EXPORT inline const QCString operator+( char c1, const QCString &s2 )
382{
383 QCString tmp;
384 tmp += c1;
385 tmp += s2;
386 return tmp;
387}
388#include "qwinexport.h"
389#endif // QCSTRING_H
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