3affcd078b
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39069 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1587 lines
60 KiB
C++
1587 lines
60 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/string.h
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// Purpose: wxString and wxArrayString classes
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 29/01/98
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// RCS-ID: $Id$
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// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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/*
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Efficient string class [more or less] compatible with MFC CString,
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wxWidgets version 1 wxString and std::string and some handy functions
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missing from string.h.
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*/
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#ifndef _WX_WXSTRINGH__
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#define _WX_WXSTRINGH__
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "wx/defs.h" // everybody should include this
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#if defined(__WXMAC__) || defined(__VISAGECPP__)
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#include <ctype.h>
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#endif
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#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
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// problem in VACPP V4 with including stdlib.h multiple times
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// strconv includes it anyway
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# include <stdio.h>
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# include <string.h>
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# include <stdarg.h>
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# include <limits.h>
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#else
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# include <string.h>
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# include <stdio.h>
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# include <stdarg.h>
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# include <limits.h>
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# include <stdlib.h>
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#endif
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#ifdef HAVE_STRCASECMP_IN_STRINGS_H
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#include <strings.h> // for strcasecmp()
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#endif // HAVE_STRCASECMP_IN_STRINGS_H
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#ifdef __WXPALMOS__
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#include <StringMgr.h>
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#endif
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#include "wx/wxchar.h" // for wxChar
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#include "wx/buffer.h" // for wxCharBuffer
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#include "wx/strconv.h" // for wxConvertXXX() macros and wxMBConv classes
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class WXDLLIMPEXP_BASE wxString;
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// ---------------------------------------------------------------------------
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// macros
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// ---------------------------------------------------------------------------
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// casts [unfortunately!] needed to call some broken functions which require
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// "char *" instead of "const char *"
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#define WXSTRINGCAST (wxChar *)(const wxChar *)
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#define wxCSTRINGCAST (wxChar *)(const wxChar *)
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#define wxMBSTRINGCAST (char *)(const char *)
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#define wxWCSTRINGCAST (wchar_t *)(const wchar_t *)
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// implementation only
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#define wxASSERT_VALID_INDEX(i) \
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wxASSERT_MSG( (size_t)(i) <= length(), _T("invalid index in wxString") )
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// maximum possible length for a string means "take all string" everywhere
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#define wxSTRING_MAXLEN wxStringBase::npos
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// ----------------------------------------------------------------------------
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// global data
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// ----------------------------------------------------------------------------
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// global pointer to empty string
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extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxEmptyString;
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// ---------------------------------------------------------------------------
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// global functions complementing standard C string library replacements for
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// strlen() and portable strcasecmp()
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//---------------------------------------------------------------------------
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// Use wxXXX() functions from wxchar.h instead! These functions are for
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// backwards compatibility only.
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// checks whether the passed in pointer is NULL and if the string is empty
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inline bool IsEmpty(const char *p) { return (!p || !*p); }
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// safe version of strlen() (returns 0 if passed NULL pointer)
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inline size_t Strlen(const char *psz)
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{ return psz ? strlen(psz) : 0; }
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// portable strcasecmp/_stricmp
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inline int Stricmp(const char *psz1, const char *psz2)
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{
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#if defined(__VISUALC__) && defined(__WXWINCE__)
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register char c1, c2;
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do {
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c1 = tolower(*psz1++);
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c2 = tolower(*psz2++);
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} while ( c1 && (c1 == c2) );
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return c1 - c2;
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#elif defined(__VISUALC__) || ( defined(__MWERKS__) && defined(__INTEL__) )
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return _stricmp(psz1, psz2);
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#elif defined(__SC__)
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return _stricmp(psz1, psz2);
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#elif defined(__SALFORDC__)
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return stricmp(psz1, psz2);
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#elif defined(__BORLANDC__)
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return stricmp(psz1, psz2);
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#elif defined(__WATCOMC__)
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return stricmp(psz1, psz2);
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#elif defined(__DJGPP__)
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return stricmp(psz1, psz2);
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#elif defined(__EMX__)
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return stricmp(psz1, psz2);
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#elif defined(__WXPM__)
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return stricmp(psz1, psz2);
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#elif defined(__WXPALMOS__) || \
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defined(HAVE_STRCASECMP_IN_STRING_H) || \
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defined(HAVE_STRCASECMP_IN_STRINGS_H) || \
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defined(__GNUWIN32__)
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return strcasecmp(psz1, psz2);
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#elif defined(__MWERKS__) && !defined(__INTEL__)
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register char c1, c2;
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do {
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c1 = tolower(*psz1++);
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c2 = tolower(*psz2++);
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} while ( c1 && (c1 == c2) );
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return c1 - c2;
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#else
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// almost all compilers/libraries provide this function (unfortunately under
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// different names), that's why we don't implement our own which will surely
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// be more efficient than this code (uncomment to use):
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/*
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register char c1, c2;
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do {
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c1 = tolower(*psz1++);
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c2 = tolower(*psz2++);
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} while ( c1 && (c1 == c2) );
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return c1 - c2;
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*/
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#error "Please define string case-insensitive compare for your OS/compiler"
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#endif // OS/compiler
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}
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// ----------------------------------------------------------------------------
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// deal with STL/non-STL/non-STL-but-wxUSE_STD_STRING
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// ----------------------------------------------------------------------------
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// in both cases we need to define wxStdString
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#if wxUSE_STL || wxUSE_STD_STRING
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#include "wx/beforestd.h"
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#include <string>
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#include "wx/afterstd.h"
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#if wxUSE_UNICODE
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#ifdef HAVE_STD_WSTRING
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typedef std::wstring wxStdString;
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#else
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typedef std::basic_string<wxChar> wxStdString;
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#endif
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#else
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typedef std::string wxStdString;
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#endif
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#endif // need <string>
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#if wxUSE_STL
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// we don't need an extra ctor from std::string when copy ctor already does
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// the work
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#undef wxUSE_STD_STRING
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#define wxUSE_STD_STRING 0
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#if (defined(__GNUG__) && (__GNUG__ < 3)) || \
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(defined(_MSC_VER) && (_MSC_VER <= 1200))
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#define wxSTRING_BASE_HASNT_CLEAR
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#endif
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typedef wxStdString wxStringBase;
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#else // if !wxUSE_STL
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#if !defined(HAVE_STD_STRING_COMPARE) && \
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(!defined(__WX_SETUP_H__) || wxUSE_STL == 0)
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#define HAVE_STD_STRING_COMPARE
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#endif
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// ---------------------------------------------------------------------------
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// string data prepended with some housekeeping info (used by wxString class),
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// is never used directly (but had to be put here to allow inlining)
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// ---------------------------------------------------------------------------
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struct WXDLLIMPEXP_BASE wxStringData
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{
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int nRefs; // reference count
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size_t nDataLength, // actual string length
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nAllocLength; // allocated memory size
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// mimics declaration 'wxChar data[nAllocLength]'
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wxChar* data() const { return (wxChar*)(this + 1); }
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// empty string has a special ref count so it's never deleted
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bool IsEmpty() const { return (nRefs == -1); }
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bool IsShared() const { return (nRefs > 1); }
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// lock/unlock
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void Lock() { if ( !IsEmpty() ) nRefs++; }
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// VC++ will refuse to inline Unlock but profiling shows that it is wrong
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#if defined(__VISUALC__) && (__VISUALC__ >= 1200)
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__forceinline
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#endif
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// VC++ free must take place in same DLL as allocation when using non dll
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// run-time library (e.g. Multithreaded instead of Multithreaded DLL)
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#if defined(__VISUALC__) && defined(_MT) && !defined(_DLL)
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void Unlock() { if ( !IsEmpty() && --nRefs == 0) Free(); }
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// we must not inline deallocation since allocation is not inlined
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void Free();
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#else
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void Unlock() { if ( !IsEmpty() && --nRefs == 0) free(this); }
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#endif
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// if we had taken control over string memory (GetWriteBuf), it's
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// intentionally put in invalid state
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void Validate(bool b) { nRefs = (b ? 1 : 0); }
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bool IsValid() const { return (nRefs != 0); }
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};
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class WXDLLIMPEXP_BASE wxStringBase
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{
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#if !wxUSE_STL
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friend class WXDLLIMPEXP_BASE wxArrayString;
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#endif
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public :
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// an 'invalid' value for string index, moved to this place due to a CW bug
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static const size_t npos;
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protected:
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// points to data preceded by wxStringData structure with ref count info
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wxChar *m_pchData;
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// accessor to string data
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wxStringData* GetStringData() const { return (wxStringData*)m_pchData - 1; }
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// string (re)initialization functions
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// initializes the string to the empty value (must be called only from
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// ctors, use Reinit() otherwise)
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void Init() { m_pchData = (wxChar *)wxEmptyString; }
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// initializes the string with (a part of) C-string
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void InitWith(const wxChar *psz, size_t nPos = 0, size_t nLen = npos);
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// as Init, but also frees old data
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void Reinit() { GetStringData()->Unlock(); Init(); }
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// memory allocation
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// allocates memory for string of length nLen
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bool AllocBuffer(size_t nLen);
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// copies data to another string
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bool AllocCopy(wxString&, int, int) const;
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// effectively copies data to string
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bool AssignCopy(size_t, const wxChar *);
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// append a (sub)string
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bool ConcatSelf(size_t nLen, const wxChar *src, size_t nMaxLen);
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bool ConcatSelf(size_t nLen, const wxChar *src)
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{ return ConcatSelf(nLen, src, nLen); }
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// functions called before writing to the string: they copy it if there
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// are other references to our data (should be the only owner when writing)
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bool CopyBeforeWrite();
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bool AllocBeforeWrite(size_t);
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// compatibility with wxString
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bool Alloc(size_t nLen);
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public:
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// standard types
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typedef wxChar value_type;
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typedef wxChar char_type;
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typedef size_t size_type;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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typedef value_type* pointer;
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typedef const value_type* const_pointer;
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typedef value_type *iterator;
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typedef const value_type *const_iterator;
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#define wxSTRING_REVERSE_ITERATOR(name, const_or_not) \
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class name \
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{ \
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public: \
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typedef wxChar value_type; \
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typedef const_or_not value_type& reference; \
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typedef const_or_not value_type *pointer; \
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typedef const_or_not value_type *iterator_type; \
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\
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name(iterator_type i) : m_cur(i) { } \
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name(const name& ri) : m_cur(ri.m_cur) { } \
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\
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iterator_type base() const { return m_cur; } \
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\
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reference operator*() const { return *(m_cur - 1); } \
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\
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name& operator++() { --m_cur; return *this; } \
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name operator++(int) { name tmp = *this; --m_cur; return tmp; } \
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name& operator--() { ++m_cur; return *this; } \
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name operator--(int) { name tmp = *this; ++m_cur; return tmp; } \
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\
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bool operator==(name ri) const { return m_cur == ri.m_cur; } \
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bool operator!=(name ri) const { return !(*this == ri); } \
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\
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private: \
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iterator_type m_cur; \
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}
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wxSTRING_REVERSE_ITERATOR(const_reverse_iterator, const);
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#define wxSTRING_CONST
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wxSTRING_REVERSE_ITERATOR(reverse_iterator, wxSTRING_CONST);
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#undef wxSTRING_CONST
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#undef wxSTRING_REVERSE_ITERATOR
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// constructors and destructor
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// ctor for an empty string
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wxStringBase() { Init(); }
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// copy ctor
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wxStringBase(const wxStringBase& stringSrc)
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{
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wxASSERT_MSG( stringSrc.GetStringData()->IsValid(),
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_T("did you forget to call UngetWriteBuf()?") );
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if ( stringSrc.empty() ) {
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// nothing to do for an empty string
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Init();
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}
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else {
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m_pchData = stringSrc.m_pchData; // share same data
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GetStringData()->Lock(); // => one more copy
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}
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}
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// string containing nRepeat copies of ch
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wxStringBase(size_type nRepeat, wxChar ch);
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// ctor takes first nLength characters from C string
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// (default value of npos means take all the string)
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wxStringBase(const wxChar *psz)
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{ InitWith(psz, 0, npos); }
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wxStringBase(const wxChar *psz, size_t nLength)
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{ InitWith(psz, 0, nLength); }
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wxStringBase(const wxChar *psz,
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const wxMBConv& WXUNUSED(conv),
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size_t nLength = npos)
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{ InitWith(psz, 0, nLength); }
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// take nLen chars starting at nPos
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wxStringBase(const wxStringBase& str, size_t nPos, size_t nLen)
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{
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wxASSERT_MSG( str.GetStringData()->IsValid(),
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_T("did you forget to call UngetWriteBuf()?") );
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Init();
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size_t strLen = str.length() - nPos; nLen = strLen < nLen ? strLen : nLen;
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InitWith(str.c_str(), nPos, nLen);
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}
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// take all characters from pStart to pEnd
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wxStringBase(const void *pStart, const void *pEnd);
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// dtor is not virtual, this class must not be inherited from!
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~wxStringBase()
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{
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#if defined(__VISUALC__) && (__VISUALC__ >= 1200)
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//RN - according to the above VC++ does indeed inline this,
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//even though it spits out two warnings
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#pragma warning (disable:4714)
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#endif
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GetStringData()->Unlock();
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}
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#if defined(__VISUALC__) && (__VISUALC__ >= 1200)
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//re-enable inlining warning
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#pragma warning (default:4714)
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#endif
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// overloaded assignment
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// from another wxString
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wxStringBase& operator=(const wxStringBase& stringSrc);
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// from a character
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wxStringBase& operator=(wxChar ch);
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// from a C string
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wxStringBase& operator=(const wxChar *psz);
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// return the length of the string
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size_type length() const { return GetStringData()->nDataLength; }
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// return the length of the string
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size_type size() const { return length(); }
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// return the maximum size of the string
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size_type max_size() const { return wxSTRING_MAXLEN; }
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// resize the string, filling the space with c if c != 0
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void resize(size_t nSize, wxChar ch = wxT('\0'));
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// delete the contents of the string
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void clear() { erase(0, npos); }
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// returns true if the string is empty
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bool empty() const { return length() == 0; }
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// inform string about planned change in size
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void reserve(size_t sz) { Alloc(sz); }
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size_type capacity() const { return GetStringData()->nAllocLength; }
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// lib.string.access
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// return the character at position n
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value_type at(size_type n) const
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{ wxASSERT_VALID_INDEX( n ); return m_pchData[n]; }
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// returns the writable character at position n
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reference at(size_type n)
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{ wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
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// lib.string.modifiers
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// append elements str[pos], ..., str[pos+n]
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wxStringBase& append(const wxStringBase& str, size_t pos, size_t n)
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{
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wxASSERT(pos <= str.length());
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ConcatSelf(n, str.c_str() + pos, str.length() - pos);
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return *this;
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}
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// append a string
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wxStringBase& append(const wxStringBase& str)
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{ ConcatSelf(str.length(), str.c_str()); return *this; }
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// append first n (or all if n == npos) characters of sz
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wxStringBase& append(const wxChar *sz)
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{ ConcatSelf(wxStrlen(sz), sz); return *this; }
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wxStringBase& append(const wxChar *sz, size_t n)
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{ ConcatSelf(n, sz); return *this; }
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// append n copies of ch
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wxStringBase& append(size_t n, wxChar ch);
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// append from first to last
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wxStringBase& append(const_iterator first, const_iterator last)
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{ ConcatSelf(last - first, first); return *this; }
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// same as `this_string = str'
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wxStringBase& assign(const wxStringBase& str)
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{ return *this = str; }
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// same as ` = str[pos..pos + n]
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wxStringBase& assign(const wxStringBase& str, size_t pos, size_t n)
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{ clear(); return append(str, pos, n); }
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// same as `= first n (or all if n == npos) characters of sz'
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wxStringBase& assign(const wxChar *sz)
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{ clear(); return append(sz, wxStrlen(sz)); }
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wxStringBase& assign(const wxChar *sz, size_t n)
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{ clear(); return append(sz, n); }
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// same as `= n copies of ch'
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wxStringBase& assign(size_t n, wxChar ch)
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{ clear(); return append(n, ch); }
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// assign from first to last
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wxStringBase& assign(const_iterator first, const_iterator last)
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{ clear(); return append(first, last); }
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// first valid index position
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const_iterator begin() const { return m_pchData; }
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iterator begin();
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// position one after the last valid one
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const_iterator end() const { return m_pchData + length(); }
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iterator end();
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// first element of the reversed string
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const_reverse_iterator rbegin() const { return const_reverse_iterator(end()); }
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reverse_iterator rbegin() { return reverse_iterator(end()); }
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// one beyond the end of the reversed string
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const_reverse_iterator rend() const { return const_reverse_iterator(begin()); }
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reverse_iterator rend() { return reverse_iterator(begin()); }
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// insert another string
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wxStringBase& insert(size_t nPos, const wxStringBase& str)
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{
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wxASSERT( str.GetStringData()->IsValid() );
|
|
return insert(nPos, str.c_str(), str.length());
|
|
}
|
|
// insert n chars of str starting at nStart (in str)
|
|
wxStringBase& insert(size_t nPos, const wxStringBase& str, size_t nStart, size_t n)
|
|
{
|
|
wxASSERT( str.GetStringData()->IsValid() );
|
|
wxASSERT( nStart < str.length() );
|
|
size_t strLen = str.length() - nStart;
|
|
n = strLen < n ? strLen : n;
|
|
return insert(nPos, str.c_str() + nStart, n);
|
|
}
|
|
// insert first n (or all if n == npos) characters of sz
|
|
wxStringBase& insert(size_t nPos, const wxChar *sz, size_t n = npos);
|
|
// insert n copies of ch
|
|
wxStringBase& insert(size_t nPos, size_t n, wxChar ch)
|
|
{ return insert(nPos, wxStringBase(n, ch)); }
|
|
iterator insert(iterator it, wxChar ch)
|
|
{ size_t idx = it - begin(); insert(idx, 1, ch); return begin() + idx; }
|
|
void insert(iterator it, const_iterator first, const_iterator last)
|
|
{ insert(it - begin(), first, last - first); }
|
|
void insert(iterator it, size_type n, wxChar ch)
|
|
{ insert(it - begin(), n, ch); }
|
|
|
|
// delete characters from nStart to nStart + nLen
|
|
wxStringBase& erase(size_type pos = 0, size_type n = npos);
|
|
iterator erase(iterator first, iterator last)
|
|
{
|
|
size_t idx = first - begin();
|
|
erase(idx, last - first);
|
|
return begin() + idx;
|
|
}
|
|
iterator erase(iterator first);
|
|
|
|
// explicit conversion to C string (use this with printf()!)
|
|
const wxChar* c_str() const { return m_pchData; }
|
|
const wxChar* data() const { return m_pchData; }
|
|
|
|
// replaces the substring of length nLen starting at nStart
|
|
wxStringBase& replace(size_t nStart, size_t nLen, const wxChar* sz);
|
|
// replaces the substring of length nLen starting at nStart
|
|
wxStringBase& replace(size_t nStart, size_t nLen, const wxStringBase& str)
|
|
{ return replace(nStart, nLen, str.c_str()); }
|
|
// replaces the substring with nCount copies of ch
|
|
wxStringBase& replace(size_t nStart, size_t nLen, size_t nCount, wxChar ch);
|
|
// replaces a substring with another substring
|
|
wxStringBase& replace(size_t nStart, size_t nLen,
|
|
const wxStringBase& str, size_t nStart2, size_t nLen2);
|
|
// replaces the substring with first nCount chars of sz
|
|
wxStringBase& replace(size_t nStart, size_t nLen,
|
|
const wxChar* sz, size_t nCount);
|
|
wxStringBase& replace(iterator first, iterator last, const_pointer s)
|
|
{ return replace(first - begin(), last - first, s); }
|
|
wxStringBase& replace(iterator first, iterator last, const_pointer s,
|
|
size_type n)
|
|
{ return replace(first - begin(), last - first, s, n); }
|
|
wxStringBase& replace(iterator first, iterator last, const wxStringBase& s)
|
|
{ return replace(first - begin(), last - first, s); }
|
|
wxStringBase& replace(iterator first, iterator last, size_type n, wxChar c)
|
|
{ return replace(first - begin(), last - first, n, c); }
|
|
wxStringBase& replace(iterator first, iterator last,
|
|
const_iterator first1, const_iterator last1)
|
|
{ return replace(first - begin(), last - first, first1, last1 - first1); }
|
|
|
|
// swap two strings
|
|
void swap(wxStringBase& str);
|
|
|
|
// All find() functions take the nStart argument which specifies the
|
|
// position to start the search on, the default value is 0. All functions
|
|
// return npos if there were no match.
|
|
|
|
// find a substring
|
|
size_t find(const wxStringBase& str, size_t nStart = 0) const;
|
|
|
|
// find first n characters of sz
|
|
size_t find(const wxChar* sz, size_t nStart = 0, size_t n = npos) const;
|
|
|
|
// find the first occurence of character ch after nStart
|
|
size_t find(wxChar ch, size_t nStart = 0) const;
|
|
|
|
// rfind() family is exactly like find() but works right to left
|
|
|
|
// as find, but from the end
|
|
size_t rfind(const wxStringBase& str, size_t nStart = npos) const;
|
|
|
|
// as find, but from the end
|
|
size_t rfind(const wxChar* sz, size_t nStart = npos,
|
|
size_t n = npos) const;
|
|
// as find, but from the end
|
|
size_t rfind(wxChar ch, size_t nStart = npos) const;
|
|
|
|
// find first/last occurence of any character in the set
|
|
|
|
// as strpbrk() but starts at nStart, returns npos if not found
|
|
size_t find_first_of(const wxStringBase& str, size_t nStart = 0) const
|
|
{ return find_first_of(str.c_str(), nStart); }
|
|
// same as above
|
|
size_t find_first_of(const wxChar* sz, size_t nStart = 0) const;
|
|
size_t find_first_of(const wxChar* sz, size_t nStart, size_t n) const;
|
|
// same as find(char, size_t)
|
|
size_t find_first_of(wxChar c, size_t nStart = 0) const
|
|
{ return find(c, nStart); }
|
|
// find the last (starting from nStart) char from str in this string
|
|
size_t find_last_of (const wxStringBase& str, size_t nStart = npos) const
|
|
{ return find_last_of(str.c_str(), nStart); }
|
|
// same as above
|
|
size_t find_last_of (const wxChar* sz, size_t nStart = npos) const;
|
|
size_t find_last_of(const wxChar* sz, size_t nStart, size_t n) const;
|
|
// same as above
|
|
size_t find_last_of(wxChar c, size_t nStart = npos) const
|
|
{ return rfind(c, nStart); }
|
|
|
|
// find first/last occurence of any character not in the set
|
|
|
|
// as strspn() (starting from nStart), returns npos on failure
|
|
size_t find_first_not_of(const wxStringBase& str, size_t nStart = 0) const
|
|
{ return find_first_not_of(str.c_str(), nStart); }
|
|
// same as above
|
|
size_t find_first_not_of(const wxChar* sz, size_t nStart = 0) const;
|
|
size_t find_first_not_of(const wxChar* sz, size_t nStart, size_t n) const;
|
|
// same as above
|
|
size_t find_first_not_of(wxChar ch, size_t nStart = 0) const;
|
|
// as strcspn()
|
|
size_t find_last_not_of(const wxStringBase& str, size_t nStart = npos) const
|
|
{ return find_last_not_of(str.c_str(), nStart); }
|
|
// same as above
|
|
size_t find_last_not_of(const wxChar* sz, size_t nStart = npos) const;
|
|
size_t find_last_not_of(const wxChar* sz, size_t nStart, size_t n) const;
|
|
// same as above
|
|
size_t find_last_not_of(wxChar ch, size_t nStart = npos) const;
|
|
|
|
// All compare functions return -1, 0 or 1 if the [sub]string is less,
|
|
// equal or greater than the compare() argument.
|
|
|
|
// comparison with another string
|
|
int compare(const wxStringBase& str) const;
|
|
// comparison with a substring
|
|
int compare(size_t nStart, size_t nLen, const wxStringBase& str) const;
|
|
// comparison of 2 substrings
|
|
int compare(size_t nStart, size_t nLen,
|
|
const wxStringBase& str, size_t nStart2, size_t nLen2) const;
|
|
// comparison with a c string
|
|
int compare(const wxChar* sz) const;
|
|
// substring comparison with first nCount characters of sz
|
|
int compare(size_t nStart, size_t nLen,
|
|
const wxChar* sz, size_t nCount = npos) const;
|
|
|
|
size_type copy(wxChar* s, size_type n, size_type pos = 0);
|
|
|
|
// substring extraction
|
|
wxStringBase substr(size_t nStart = 0, size_t nLen = npos) const;
|
|
|
|
// string += string
|
|
wxStringBase& operator+=(const wxStringBase& s) { return append(s); }
|
|
// string += C string
|
|
wxStringBase& operator+=(const wxChar *psz) { return append(psz); }
|
|
// string += char
|
|
wxStringBase& operator+=(wxChar ch) { return append(1, ch); }
|
|
};
|
|
|
|
#endif // !wxUSE_STL
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxString: string class trying to be compatible with std::string, MFC
|
|
// CString and wxWindows 1.x wxString all at once
|
|
// ---------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_BASE wxString : public wxStringBase
|
|
{
|
|
#if !wxUSE_STL
|
|
friend class WXDLLIMPEXP_BASE wxArrayString;
|
|
#endif
|
|
|
|
// NB: special care was taken in arranging the member functions in such order
|
|
// that all inline functions can be effectively inlined, verify that all
|
|
// performance critical functions are still inlined if you change order!
|
|
private:
|
|
// if we hadn't made these operators private, it would be possible to
|
|
// compile "wxString s; s = 17;" without any warnings as 17 is implicitly
|
|
// converted to char in C and we do have operator=(char)
|
|
//
|
|
// NB: we don't need other versions (short/long and unsigned) as attempt
|
|
// to assign another numeric type to wxString will now result in
|
|
// ambiguity between operator=(char) and operator=(int)
|
|
wxString& operator=(int);
|
|
|
|
// these methods are not implemented - there is _no_ conversion from int to
|
|
// string, you're doing something wrong if the compiler wants to call it!
|
|
//
|
|
// try `s << i' or `s.Printf("%d", i)' instead
|
|
wxString(int);
|
|
|
|
public:
|
|
// constructors and destructor
|
|
// ctor for an empty string
|
|
wxString() : wxStringBase() { }
|
|
// copy ctor
|
|
wxString(const wxStringBase& stringSrc) : wxStringBase(stringSrc) { }
|
|
wxString(const wxString& stringSrc) : wxStringBase(stringSrc) { }
|
|
// string containing nRepeat copies of ch
|
|
wxString(wxChar ch, size_t nRepeat = 1)
|
|
: wxStringBase(nRepeat, ch) { }
|
|
wxString(size_t nRepeat, wxChar ch)
|
|
: wxStringBase(nRepeat, ch) { }
|
|
// ctor takes first nLength characters from C string
|
|
// (default value of npos means take all the string)
|
|
wxString(const wxChar *psz)
|
|
: wxStringBase(psz ? psz : wxT("")) { }
|
|
wxString(const wxChar *psz, size_t nLength)
|
|
: wxStringBase(psz, nLength) { }
|
|
wxString(const wxChar *psz,
|
|
const wxMBConv& WXUNUSED(conv),
|
|
size_t nLength = npos)
|
|
: wxStringBase(psz, nLength == npos ? wxStrlen(psz) : nLength) { }
|
|
|
|
// even if we're not built with wxUSE_STL == 1 it is very convenient to allow
|
|
// implicit conversions from std::string to wxString as this allows to use
|
|
// the same strings in non-GUI and GUI code, however we don't want to
|
|
// unconditionally add this ctor as it would make wx lib dependent on
|
|
// libstdc++ on some Linux versions which is bad, so instead we ask the
|
|
// client code to define this wxUSE_STD_STRING symbol if they need it
|
|
#if wxUSE_STD_STRING
|
|
wxString(const wxStdString& s)
|
|
: wxStringBase(s.c_str()) { }
|
|
#endif // wxUSE_STD_STRING
|
|
|
|
#if wxUSE_UNICODE
|
|
// from multibyte string
|
|
wxString(const char *psz, const wxMBConv& conv, size_t nLength = npos);
|
|
// from wxWCharBuffer (i.e. return from wxGetString)
|
|
wxString(const wxWCharBuffer& psz) : wxStringBase(psz.data()) { }
|
|
#else // ANSI
|
|
// from C string (for compilers using unsigned char)
|
|
wxString(const unsigned char* psz)
|
|
: wxStringBase((const char*)psz) { }
|
|
// from part of C string (for compilers using unsigned char)
|
|
wxString(const unsigned char* psz, size_t nLength)
|
|
: wxStringBase((const char*)psz, nLength) { }
|
|
|
|
#if wxUSE_WCHAR_T
|
|
// from wide (Unicode) string
|
|
wxString(const wchar_t *pwz,
|
|
const wxMBConv& conv = wxConvLibc,
|
|
size_t nLength = npos);
|
|
#endif // !wxUSE_WCHAR_T
|
|
|
|
// from wxCharBuffer
|
|
wxString(const wxCharBuffer& psz)
|
|
: wxStringBase(psz) { }
|
|
#endif // Unicode/ANSI
|
|
|
|
// generic attributes & operations
|
|
// as standard strlen()
|
|
size_t Len() const { return length(); }
|
|
// string contains any characters?
|
|
bool IsEmpty() const { return empty(); }
|
|
// empty string is "false", so !str will return true
|
|
bool operator!() const { return empty(); }
|
|
// truncate the string to given length
|
|
wxString& Truncate(size_t uiLen);
|
|
// empty string contents
|
|
void Empty()
|
|
{
|
|
Truncate(0);
|
|
|
|
wxASSERT_MSG( empty(), _T("string not empty after call to Empty()?") );
|
|
}
|
|
// empty the string and free memory
|
|
void Clear()
|
|
{
|
|
wxString tmp(wxEmptyString);
|
|
swap(tmp);
|
|
}
|
|
|
|
// contents test
|
|
// Is an ascii value
|
|
bool IsAscii() const;
|
|
// Is a number
|
|
bool IsNumber() const;
|
|
// Is a word
|
|
bool IsWord() const;
|
|
|
|
// data access (all indexes are 0 based)
|
|
// read access
|
|
wxChar GetChar(size_t n) const
|
|
{ return at(n); }
|
|
// read/write access
|
|
wxChar& GetWritableChar(size_t n)
|
|
{ return at(n); }
|
|
// write access
|
|
void SetChar(size_t n, wxChar ch)
|
|
{ at(n) = ch; }
|
|
|
|
// get last character
|
|
wxChar Last() const
|
|
{
|
|
wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
|
|
|
|
return at(length() - 1);
|
|
}
|
|
|
|
// get writable last character
|
|
wxChar& Last()
|
|
{
|
|
wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
|
|
return at(length() - 1);
|
|
}
|
|
|
|
/*
|
|
Note that we we must define all of the overloads below to avoid
|
|
ambiguity when using str[0]. Also note that for a conforming compiler we
|
|
don't need const version of operatorp[] at all as indexed access to
|
|
const string is provided by implicit conversion to "const wxChar *"
|
|
below and defining them would only result in ambiguities, but some other
|
|
compilers refuse to compile "str[0]" without them.
|
|
*/
|
|
|
|
#if defined(__BORLANDC__) || defined(__WATCOMC__) || defined(__MWERKS__)
|
|
wxChar operator[](int n) const
|
|
{ return wxStringBase::at(n); }
|
|
wxChar operator[](size_type n) const
|
|
{ return wxStringBase::at(n); }
|
|
#ifndef wxSIZE_T_IS_UINT
|
|
wxChar operator[](unsigned int n) const
|
|
{ return wxStringBase::at(n); }
|
|
#endif // size_t != unsigned int
|
|
#endif // broken compiler
|
|
|
|
|
|
// operator versions of GetWriteableChar()
|
|
wxChar& operator[](int n)
|
|
{ return wxStringBase::at(n); }
|
|
wxChar& operator[](size_type n)
|
|
{ return wxStringBase::at(n); }
|
|
#ifndef wxSIZE_T_IS_UINT
|
|
wxChar& operator[](unsigned int n)
|
|
{ return wxStringBase::at(n); }
|
|
#endif // size_t != unsigned int
|
|
|
|
// implicit conversion to C string
|
|
operator const wxChar*() const { return c_str(); }
|
|
|
|
// identical to c_str(), for wxWin 1.6x compatibility
|
|
const wxChar* wx_str() const { return c_str(); }
|
|
// identical to c_str(), for MFC compatibility
|
|
const wxChar* GetData() const { return c_str(); }
|
|
|
|
// conversion to/from plain (i.e. 7 bit) ASCII: this is useful for
|
|
// converting numbers or strings which are certain not to contain special
|
|
// chars (typically system functions, X atoms, environment variables etc.)
|
|
//
|
|
// the behaviour of these functions with the strings containing anything
|
|
// else than 7 bit ASCII characters is undefined, use at your own risk.
|
|
#if wxUSE_UNICODE
|
|
static wxString FromAscii(const char *ascii); // string
|
|
static wxString FromAscii(const char ascii); // char
|
|
const wxCharBuffer ToAscii() const;
|
|
#else // ANSI
|
|
static wxString FromAscii(const char *ascii) { return wxString( ascii ); }
|
|
static wxString FromAscii(const char ascii) { return wxString( ascii ); }
|
|
const char *ToAscii() const { return c_str(); }
|
|
#endif // Unicode/!Unicode
|
|
|
|
// conversions with (possible) format conversions: have to return a
|
|
// buffer with temporary data
|
|
//
|
|
// the functions defined (in either Unicode or ANSI) mode are mb_str() to
|
|
// return an ANSI (multibyte) string, wc_str() to return a wide string and
|
|
// fn_str() to return a string which should be used with the OS APIs
|
|
// accepting the file names. The return value is always the same, but the
|
|
// type differs because a function may either return pointer to the buffer
|
|
// directly or have to use intermediate buffer for translation.
|
|
#if wxUSE_UNICODE
|
|
const wxCharBuffer mb_str(const wxMBConv& conv = wxConvLibc) const;
|
|
|
|
const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
|
|
|
|
const wxChar* wc_str() const { return c_str(); }
|
|
|
|
// for compatibility with !wxUSE_UNICODE version
|
|
const wxChar* wc_str(const wxMBConv& WXUNUSED(conv)) const { return c_str(); }
|
|
|
|
#if wxMBFILES
|
|
const wxCharBuffer fn_str() const { return mb_str(wxConvFile); }
|
|
#else // !wxMBFILES
|
|
const wxChar* fn_str() const { return c_str(); }
|
|
#endif // wxMBFILES/!wxMBFILES
|
|
#else // ANSI
|
|
const wxChar* mb_str() const { return c_str(); }
|
|
|
|
// for compatibility with wxUSE_UNICODE version
|
|
const wxChar* mb_str(const wxMBConv& WXUNUSED(conv)) const { return c_str(); }
|
|
|
|
const wxWX2MBbuf mbc_str() const { return mb_str(); }
|
|
|
|
#if wxUSE_WCHAR_T
|
|
const wxWCharBuffer wc_str(const wxMBConv& conv) const;
|
|
#endif // wxUSE_WCHAR_T
|
|
#ifdef __WXOSX__
|
|
const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLocal ) ); }
|
|
#else
|
|
const wxChar* fn_str() const { return c_str(); }
|
|
#endif
|
|
#endif // Unicode/ANSI
|
|
|
|
// overloaded assignment
|
|
// from another wxString
|
|
wxString& operator=(const wxStringBase& stringSrc)
|
|
{ return (wxString&)wxStringBase::operator=(stringSrc); }
|
|
// from a character
|
|
wxString& operator=(wxChar ch)
|
|
{ return (wxString&)wxStringBase::operator=(ch); }
|
|
// from a C string - STL probably will crash on NULL,
|
|
// so we need to compensate in that case
|
|
#if wxUSE_STL
|
|
wxString& operator=(const wxChar *psz)
|
|
{ if(psz) wxStringBase::operator=(psz); else Clear(); return *this; }
|
|
#else
|
|
wxString& operator=(const wxChar *psz)
|
|
{ return (wxString&)wxStringBase::operator=(psz); }
|
|
#endif
|
|
|
|
#if wxUSE_UNICODE
|
|
// from wxWCharBuffer
|
|
wxString& operator=(const wxWCharBuffer& psz)
|
|
{ (void) operator=((const wchar_t *)psz); return *this; }
|
|
#else // ANSI
|
|
// from another kind of C string
|
|
wxString& operator=(const unsigned char* psz);
|
|
#if wxUSE_WCHAR_T
|
|
// from a wide string
|
|
wxString& operator=(const wchar_t *pwz);
|
|
#endif
|
|
// from wxCharBuffer
|
|
wxString& operator=(const wxCharBuffer& psz)
|
|
{ (void) operator=((const char *)psz); return *this; }
|
|
#endif // Unicode/ANSI
|
|
|
|
// string concatenation
|
|
// in place concatenation
|
|
/*
|
|
Concatenate and return the result. Note that the left to right
|
|
associativity of << allows to write things like "str << str1 << str2
|
|
<< ..." (unlike with +=)
|
|
*/
|
|
// string += string
|
|
wxString& operator<<(const wxString& s)
|
|
{
|
|
#if !wxUSE_STL
|
|
wxASSERT_MSG( s.GetStringData()->IsValid(),
|
|
_T("did you forget to call UngetWriteBuf()?") );
|
|
#endif
|
|
|
|
append(s);
|
|
return *this;
|
|
}
|
|
// string += C string
|
|
wxString& operator<<(const wxChar *psz)
|
|
{ append(psz); return *this; }
|
|
// string += char
|
|
wxString& operator<<(wxChar ch) { append(1, ch); return *this; }
|
|
|
|
// string += buffer (i.e. from wxGetString)
|
|
#if wxUSE_UNICODE
|
|
wxString& operator<<(const wxWCharBuffer& s)
|
|
{ (void)operator<<((const wchar_t *)s); return *this; }
|
|
void operator+=(const wxWCharBuffer& s)
|
|
{ (void)operator<<((const wchar_t *)s); }
|
|
#else // !wxUSE_UNICODE
|
|
wxString& operator<<(const wxCharBuffer& s)
|
|
{ (void)operator<<((const char *)s); return *this; }
|
|
void operator+=(const wxCharBuffer& s)
|
|
{ (void)operator<<((const char *)s); }
|
|
#endif // wxUSE_UNICODE/!wxUSE_UNICODE
|
|
|
|
// string += C string
|
|
wxString& Append(const wxString& s)
|
|
{
|
|
// test for empty() to share the string if possible
|
|
if ( empty() )
|
|
*this = s;
|
|
else
|
|
append(s);
|
|
return *this;
|
|
}
|
|
wxString& Append(const wxChar* psz)
|
|
{ append(psz); return *this; }
|
|
// append count copies of given character
|
|
wxString& Append(wxChar ch, size_t count = 1u)
|
|
{ append(count, ch); return *this; }
|
|
wxString& Append(const wxChar* psz, size_t nLen)
|
|
{ append(psz, nLen); return *this; }
|
|
|
|
// prepend a string, return the string itself
|
|
wxString& Prepend(const wxString& str)
|
|
{ *this = str + *this; return *this; }
|
|
|
|
// non-destructive concatenation
|
|
// two strings
|
|
friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string1,
|
|
const wxString& string2);
|
|
// string with a single char
|
|
friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch);
|
|
// char with a string
|
|
friend wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string);
|
|
// string with C string
|
|
friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string,
|
|
const wxChar *psz);
|
|
// C string with string
|
|
friend wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz,
|
|
const wxString& string);
|
|
|
|
// stream-like functions
|
|
// insert an int into string
|
|
wxString& operator<<(int i)
|
|
{ return (*this) << Format(_T("%d"), i); }
|
|
// insert an unsigned int into string
|
|
wxString& operator<<(unsigned int ui)
|
|
{ return (*this) << Format(_T("%u"), ui); }
|
|
// insert a long into string
|
|
wxString& operator<<(long l)
|
|
{ return (*this) << Format(_T("%ld"), l); }
|
|
// insert an unsigned long into string
|
|
wxString& operator<<(unsigned long ul)
|
|
{ return (*this) << Format(_T("%lu"), ul); }
|
|
#if defined wxLongLong_t && !defined wxLongLongIsLong
|
|
// insert a long long if they exist and aren't longs
|
|
wxString& operator<<(wxLongLong_t ll)
|
|
{
|
|
const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("d");
|
|
return (*this) << Format(fmt, ll);
|
|
}
|
|
// insert an unsigned long long
|
|
wxString& operator<<(wxULongLong_t ull)
|
|
{
|
|
const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("u");
|
|
return (*this) << Format(fmt , ull);
|
|
}
|
|
#endif
|
|
// insert a float into string
|
|
wxString& operator<<(float f)
|
|
{ return (*this) << Format(_T("%f"), f); }
|
|
// insert a double into string
|
|
wxString& operator<<(double d)
|
|
{ return (*this) << Format(_T("%g"), d); }
|
|
|
|
// string comparison
|
|
// case-sensitive comparison (returns a value < 0, = 0 or > 0)
|
|
int Cmp(const wxChar *psz) const;
|
|
int Cmp(const wxString& s) const;
|
|
// same as Cmp() but not case-sensitive
|
|
int CmpNoCase(const wxChar *psz) const;
|
|
int CmpNoCase(const wxString& s) const;
|
|
// test for the string equality, either considering case or not
|
|
// (if compareWithCase then the case matters)
|
|
bool IsSameAs(const wxChar *psz, bool compareWithCase = true) const
|
|
{ return (compareWithCase ? Cmp(psz) : CmpNoCase(psz)) == 0; }
|
|
// comparison with a single character: returns true if equal
|
|
bool IsSameAs(wxChar c, bool compareWithCase = true) const
|
|
{
|
|
return (length() == 1) && (compareWithCase ? GetChar(0u) == c
|
|
: wxToupper(GetChar(0u)) == wxToupper(c));
|
|
}
|
|
|
|
// simple sub-string extraction
|
|
// return substring starting at nFirst of length nCount (or till the end
|
|
// if nCount = default value)
|
|
wxString Mid(size_t nFirst, size_t nCount = npos) const;
|
|
|
|
// operator version of Mid()
|
|
wxString operator()(size_t start, size_t len) const
|
|
{ return Mid(start, len); }
|
|
|
|
// check if the string starts with the given prefix and return the rest
|
|
// of the string in the provided pointer if it is not NULL; otherwise
|
|
// return false
|
|
bool StartsWith(const wxChar *prefix, wxString *rest = NULL) const;
|
|
// check if the string ends with the given suffix and return the
|
|
// beginning of the string before the suffix in the provided pointer if
|
|
// it is not NULL; otherwise return false
|
|
bool EndsWith(const wxChar *suffix, wxString *rest = NULL) const;
|
|
|
|
// get first nCount characters
|
|
wxString Left(size_t nCount) const;
|
|
// get last nCount characters
|
|
wxString Right(size_t nCount) const;
|
|
// get all characters before the first occurance of ch
|
|
// (returns the whole string if ch not found)
|
|
wxString BeforeFirst(wxChar ch) const;
|
|
// get all characters before the last occurence of ch
|
|
// (returns empty string if ch not found)
|
|
wxString BeforeLast(wxChar ch) const;
|
|
// get all characters after the first occurence of ch
|
|
// (returns empty string if ch not found)
|
|
wxString AfterFirst(wxChar ch) const;
|
|
// get all characters after the last occurence of ch
|
|
// (returns the whole string if ch not found)
|
|
wxString AfterLast(wxChar ch) const;
|
|
|
|
// for compatibility only, use more explicitly named functions above
|
|
wxString Before(wxChar ch) const { return BeforeLast(ch); }
|
|
wxString After(wxChar ch) const { return AfterFirst(ch); }
|
|
|
|
// case conversion
|
|
// convert to upper case in place, return the string itself
|
|
wxString& MakeUpper();
|
|
// convert to upper case, return the copy of the string
|
|
// Here's something to remember: BC++ doesn't like returns in inlines.
|
|
wxString Upper() const ;
|
|
// convert to lower case in place, return the string itself
|
|
wxString& MakeLower();
|
|
// convert to lower case, return the copy of the string
|
|
wxString Lower() const ;
|
|
|
|
// trimming/padding whitespace (either side) and truncating
|
|
// remove spaces from left or from right (default) side
|
|
wxString& Trim(bool bFromRight = true);
|
|
// add nCount copies chPad in the beginning or at the end (default)
|
|
wxString& Pad(size_t nCount, wxChar chPad = wxT(' '), bool bFromRight = true);
|
|
|
|
// searching and replacing
|
|
// searching (return starting index, or -1 if not found)
|
|
int Find(wxChar ch, bool bFromEnd = false) const; // like strchr/strrchr
|
|
// searching (return starting index, or -1 if not found)
|
|
int Find(const wxChar *pszSub) const; // like strstr
|
|
// replace first (or all of bReplaceAll) occurences of substring with
|
|
// another string, returns the number of replacements made
|
|
size_t Replace(const wxChar *szOld,
|
|
const wxChar *szNew,
|
|
bool bReplaceAll = true);
|
|
|
|
// check if the string contents matches a mask containing '*' and '?'
|
|
bool Matches(const wxChar *szMask) const;
|
|
|
|
// conversion to numbers: all functions return true only if the whole
|
|
// string is a number and put the value of this number into the pointer
|
|
// provided, the base is the numeric base in which the conversion should be
|
|
// done and must be comprised between 2 and 36 or be 0 in which case the
|
|
// standard C rules apply (leading '0' => octal, "0x" => hex)
|
|
// convert to a signed integer
|
|
bool ToLong(long *val, int base = 10) const;
|
|
// convert to an unsigned integer
|
|
bool ToULong(unsigned long *val, int base = 10) const;
|
|
// convert to a double
|
|
bool ToDouble(double *val) const;
|
|
|
|
// formatted input/output
|
|
// as sprintf(), returns the number of characters written or < 0 on error
|
|
// (take 'this' into account in attribute parameter count)
|
|
int Printf(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_2;
|
|
// as vprintf(), returns the number of characters written or < 0 on error
|
|
int PrintfV(const wxChar* pszFormat, va_list argptr);
|
|
|
|
// returns the string containing the result of Printf() to it
|
|
static wxString Format(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_1;
|
|
// the same as above, but takes a va_list
|
|
static wxString FormatV(const wxChar *pszFormat, va_list argptr);
|
|
|
|
// raw access to string memory
|
|
// ensure that string has space for at least nLen characters
|
|
// only works if the data of this string is not shared
|
|
bool Alloc(size_t nLen) { reserve(nLen); /*return capacity() >= nLen;*/ return true; }
|
|
// minimize the string's memory
|
|
// only works if the data of this string is not shared
|
|
bool Shrink();
|
|
#if !wxUSE_STL
|
|
// get writable buffer of at least nLen bytes. Unget() *must* be called
|
|
// a.s.a.p. to put string back in a reasonable state!
|
|
wxChar *GetWriteBuf(size_t nLen);
|
|
// call this immediately after GetWriteBuf() has been used
|
|
void UngetWriteBuf();
|
|
void UngetWriteBuf(size_t nLen);
|
|
#endif
|
|
|
|
// wxWidgets version 1 compatibility functions
|
|
|
|
// use Mid()
|
|
wxString SubString(size_t from, size_t to) const
|
|
{ return Mid(from, (to - from + 1)); }
|
|
// values for second parameter of CompareTo function
|
|
enum caseCompare {exact, ignoreCase};
|
|
// values for first parameter of Strip function
|
|
enum stripType {leading = 0x1, trailing = 0x2, both = 0x3};
|
|
|
|
// use Printf()
|
|
// (take 'this' into account in attribute parameter count)
|
|
int sprintf(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_2;
|
|
|
|
// use Cmp()
|
|
inline int CompareTo(const wxChar* psz, caseCompare cmp = exact) const
|
|
{ return cmp == exact ? Cmp(psz) : CmpNoCase(psz); }
|
|
|
|
// use Len
|
|
size_t Length() const { return length(); }
|
|
// Count the number of characters
|
|
int Freq(wxChar ch) const;
|
|
// use MakeLower
|
|
void LowerCase() { MakeLower(); }
|
|
// use MakeUpper
|
|
void UpperCase() { MakeUpper(); }
|
|
// use Trim except that it doesn't change this string
|
|
wxString Strip(stripType w = trailing) const;
|
|
|
|
// use Find (more general variants not yet supported)
|
|
size_t Index(const wxChar* psz) const { return Find(psz); }
|
|
size_t Index(wxChar ch) const { return Find(ch); }
|
|
// use Truncate
|
|
wxString& Remove(size_t pos) { return Truncate(pos); }
|
|
wxString& RemoveLast(size_t n = 1) { return Truncate(length() - n); }
|
|
|
|
wxString& Remove(size_t nStart, size_t nLen)
|
|
{ return (wxString&)erase( nStart, nLen ); }
|
|
|
|
// use Find()
|
|
int First( const wxChar ch ) const { return Find(ch); }
|
|
int First( const wxChar* psz ) const { return Find(psz); }
|
|
int First( const wxString &str ) const { return Find(str); }
|
|
int Last( const wxChar ch ) const { return Find(ch, true); }
|
|
bool Contains(const wxString& str) const { return Find(str) != wxNOT_FOUND; }
|
|
|
|
// use empty()
|
|
bool IsNull() const { return empty(); }
|
|
|
|
// std::string compatibility functions
|
|
|
|
// take nLen chars starting at nPos
|
|
wxString(const wxString& str, size_t nPos, size_t nLen)
|
|
: wxStringBase(str, nPos, nLen) { }
|
|
// take all characters from pStart to pEnd
|
|
wxString(const void *pStart, const void *pEnd)
|
|
: wxStringBase((const wxChar*)pStart, (const wxChar*)pEnd) { }
|
|
#if wxUSE_STL
|
|
wxString(const_iterator first, const_iterator last)
|
|
: wxStringBase(first, last) { }
|
|
#endif
|
|
|
|
// lib.string.modifiers
|
|
// append elements str[pos], ..., str[pos+n]
|
|
wxString& append(const wxString& str, size_t pos, size_t n)
|
|
{ return (wxString&)wxStringBase::append(str, pos, n); }
|
|
// append a string
|
|
wxString& append(const wxString& str)
|
|
{ return (wxString&)wxStringBase::append(str); }
|
|
// append first n (or all if n == npos) characters of sz
|
|
wxString& append(const wxChar *sz)
|
|
{ return (wxString&)wxStringBase::append(sz); }
|
|
wxString& append(const wxChar *sz, size_t n)
|
|
{ return (wxString&)wxStringBase::append(sz, n); }
|
|
// append n copies of ch
|
|
wxString& append(size_t n, wxChar ch)
|
|
{ return (wxString&)wxStringBase::append(n, ch); }
|
|
// append from first to last
|
|
wxString& append(const_iterator first, const_iterator last)
|
|
{ return (wxString&)wxStringBase::append(first, last); }
|
|
|
|
// same as `this_string = str'
|
|
wxString& assign(const wxString& str)
|
|
{ return (wxString&)wxStringBase::assign(str); }
|
|
// same as ` = str[pos..pos + n]
|
|
wxString& assign(const wxString& str, size_t pos, size_t n)
|
|
{ return (wxString&)wxStringBase::assign(str, pos, n); }
|
|
// same as `= first n (or all if n == npos) characters of sz'
|
|
wxString& assign(const wxChar *sz)
|
|
{ return (wxString&)wxStringBase::assign(sz); }
|
|
wxString& assign(const wxChar *sz, size_t n)
|
|
{ return (wxString&)wxStringBase::assign(sz, n); }
|
|
// same as `= n copies of ch'
|
|
wxString& assign(size_t n, wxChar ch)
|
|
{ return (wxString&)wxStringBase::assign(n, ch); }
|
|
// assign from first to last
|
|
wxString& assign(const_iterator first, const_iterator last)
|
|
{ return (wxString&)wxStringBase::assign(first, last); }
|
|
|
|
// string comparison
|
|
#if !defined(HAVE_STD_STRING_COMPARE)
|
|
int compare(const wxStringBase& str) const;
|
|
// comparison with a substring
|
|
int compare(size_t nStart, size_t nLen, const wxStringBase& str) const;
|
|
// comparison of 2 substrings
|
|
int compare(size_t nStart, size_t nLen,
|
|
const wxStringBase& str, size_t nStart2, size_t nLen2) const;
|
|
// just like strcmp()
|
|
int compare(const wxChar* sz) const;
|
|
// substring comparison with first nCount characters of sz
|
|
int compare(size_t nStart, size_t nLen,
|
|
const wxChar* sz, size_t nCount = npos) const;
|
|
#endif // !defined HAVE_STD_STRING_COMPARE
|
|
|
|
// insert another string
|
|
wxString& insert(size_t nPos, const wxString& str)
|
|
{ return (wxString&)wxStringBase::insert(nPos, str); }
|
|
// insert n chars of str starting at nStart (in str)
|
|
wxString& insert(size_t nPos, const wxString& str, size_t nStart, size_t n)
|
|
{ return (wxString&)wxStringBase::insert(nPos, str, nStart, n); }
|
|
// insert first n (or all if n == npos) characters of sz
|
|
wxString& insert(size_t nPos, const wxChar *sz)
|
|
{ return (wxString&)wxStringBase::insert(nPos, sz); }
|
|
wxString& insert(size_t nPos, const wxChar *sz, size_t n)
|
|
{ return (wxString&)wxStringBase::insert(nPos, sz, n); }
|
|
// insert n copies of ch
|
|
wxString& insert(size_t nPos, size_t n, wxChar ch)
|
|
{ return (wxString&)wxStringBase::insert(nPos, n, ch); }
|
|
iterator insert(iterator it, wxChar ch)
|
|
{ return wxStringBase::insert(it, ch); }
|
|
void insert(iterator it, const_iterator first, const_iterator last)
|
|
{ wxStringBase::insert(it, first, last); }
|
|
void insert(iterator it, size_type n, wxChar ch)
|
|
{ wxStringBase::insert(it, n, ch); }
|
|
|
|
// delete characters from nStart to nStart + nLen
|
|
wxString& erase(size_type pos = 0, size_type n = npos)
|
|
{ return (wxString&)wxStringBase::erase(pos, n); }
|
|
iterator erase(iterator first, iterator last)
|
|
{ return wxStringBase::erase(first, last); }
|
|
iterator erase(iterator first)
|
|
{ return wxStringBase::erase(first); }
|
|
|
|
#ifdef wxSTRING_BASE_HASNT_CLEAR
|
|
void clear() { erase(); }
|
|
#endif
|
|
|
|
// replaces the substring of length nLen starting at nStart
|
|
wxString& replace(size_t nStart, size_t nLen, const wxChar* sz)
|
|
{ return (wxString&)wxStringBase::replace(nStart, nLen, sz); }
|
|
// replaces the substring of length nLen starting at nStart
|
|
wxString& replace(size_t nStart, size_t nLen, const wxString& str)
|
|
{ return (wxString&)wxStringBase::replace(nStart, nLen, str); }
|
|
// replaces the substring with nCount copies of ch
|
|
wxString& replace(size_t nStart, size_t nLen, size_t nCount, wxChar ch)
|
|
{ return (wxString&)wxStringBase::replace(nStart, nLen, nCount, ch); }
|
|
// replaces a substring with another substring
|
|
wxString& replace(size_t nStart, size_t nLen,
|
|
const wxString& str, size_t nStart2, size_t nLen2)
|
|
{ return (wxString&)wxStringBase::replace(nStart, nLen, str,
|
|
nStart2, nLen2); }
|
|
// replaces the substring with first nCount chars of sz
|
|
wxString& replace(size_t nStart, size_t nLen,
|
|
const wxChar* sz, size_t nCount)
|
|
{ return (wxString&)wxStringBase::replace(nStart, nLen, sz, nCount); }
|
|
wxString& replace(iterator first, iterator last, const_pointer s)
|
|
{ return (wxString&)wxStringBase::replace(first, last, s); }
|
|
wxString& replace(iterator first, iterator last, const_pointer s,
|
|
size_type n)
|
|
{ return (wxString&)wxStringBase::replace(first, last, s, n); }
|
|
wxString& replace(iterator first, iterator last, const wxString& s)
|
|
{ return (wxString&)wxStringBase::replace(first, last, s); }
|
|
wxString& replace(iterator first, iterator last, size_type n, wxChar c)
|
|
{ return (wxString&)wxStringBase::replace(first, last, n, c); }
|
|
wxString& replace(iterator first, iterator last,
|
|
const_iterator first1, const_iterator last1)
|
|
{ return (wxString&)wxStringBase::replace(first, last, first1, last1); }
|
|
|
|
// string += string
|
|
wxString& operator+=(const wxString& s)
|
|
{ return (wxString&)wxStringBase::operator+=(s); }
|
|
// string += C string
|
|
wxString& operator+=(const wxChar *psz)
|
|
{ return (wxString&)wxStringBase::operator+=(psz); }
|
|
// string += char
|
|
wxString& operator+=(wxChar ch)
|
|
{ return (wxString&)wxStringBase::operator+=(ch); }
|
|
};
|
|
|
|
// notice that even though for many compilers the friend declarations above are
|
|
// enough, from the point of view of C++ standard we must have the declarations
|
|
// here as friend ones are not injected in the enclosing namespace and without
|
|
// them the code fails to compile with conforming compilers such as xlC or g++4
|
|
wxString WXDLLIMPEXP_BASE operator+(const wxString& string1, const wxString& string2);
|
|
wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch);
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wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string);
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wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wxChar *psz);
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wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, const wxString& string);
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|
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// define wxArrayString, for compatibility
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#if WXWIN_COMPATIBILITY_2_4 && !wxUSE_STL
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|
#include "wx/arrstr.h"
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#endif
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|
|
|
#if wxUSE_STL
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// return an empty wxString (not very useful with wxUSE_STL == 1)
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|
inline const wxString wxGetEmptyString() { return wxString(); }
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|
#else // !wxUSE_STL
|
|
// return an empty wxString (more efficient than wxString() here)
|
|
inline const wxString& wxGetEmptyString()
|
|
{
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|
return *(wxString *)&wxEmptyString;
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|
}
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|
#endif // wxUSE_STL/!wxUSE_STL
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// ----------------------------------------------------------------------------
|
|
// wxStringBuffer: a tiny class allowing to get a writable pointer into string
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#if wxUSE_STL
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|
|
|
class WXDLLIMPEXP_BASE wxStringBuffer
|
|
{
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|
public:
|
|
wxStringBuffer(wxString& str, size_t lenWanted = 1024)
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|
: m_str(str), m_buf(lenWanted)
|
|
{ }
|
|
|
|
~wxStringBuffer() { m_str.assign(m_buf.data(), wxStrlen(m_buf.data())); }
|
|
|
|
operator wxChar*() { return m_buf.data(); }
|
|
|
|
private:
|
|
wxString& m_str;
|
|
#if wxUSE_UNICODE
|
|
wxWCharBuffer m_buf;
|
|
#else
|
|
wxCharBuffer m_buf;
|
|
#endif
|
|
|
|
DECLARE_NO_COPY_CLASS(wxStringBuffer)
|
|
};
|
|
|
|
class WXDLLIMPEXP_BASE wxStringBufferLength
|
|
{
|
|
public:
|
|
wxStringBufferLength(wxString& str, size_t lenWanted = 1024)
|
|
: m_str(str), m_buf(lenWanted), m_len(0), m_lenSet(false)
|
|
{ }
|
|
|
|
~wxStringBufferLength()
|
|
{
|
|
wxASSERT(m_lenSet);
|
|
m_str.assign(m_buf.data(), m_len);
|
|
}
|
|
|
|
operator wxChar*() { return m_buf.data(); }
|
|
void SetLength(size_t length) { m_len = length; m_lenSet = true; }
|
|
|
|
private:
|
|
wxString& m_str;
|
|
#if wxUSE_UNICODE
|
|
wxWCharBuffer m_buf;
|
|
#else
|
|
wxCharBuffer m_buf;
|
|
#endif
|
|
size_t m_len;
|
|
bool m_lenSet;
|
|
|
|
DECLARE_NO_COPY_CLASS(wxStringBufferLength)
|
|
};
|
|
|
|
#else // if !wxUSE_STL
|
|
|
|
class WXDLLIMPEXP_BASE wxStringBuffer
|
|
{
|
|
public:
|
|
wxStringBuffer(wxString& str, size_t lenWanted = 1024)
|
|
: m_str(str), m_buf(NULL)
|
|
{ m_buf = m_str.GetWriteBuf(lenWanted); }
|
|
|
|
~wxStringBuffer() { m_str.UngetWriteBuf(); }
|
|
|
|
operator wxChar*() const { return m_buf; }
|
|
|
|
private:
|
|
wxString& m_str;
|
|
wxChar *m_buf;
|
|
|
|
DECLARE_NO_COPY_CLASS(wxStringBuffer)
|
|
};
|
|
|
|
class WXDLLIMPEXP_BASE wxStringBufferLength
|
|
{
|
|
public:
|
|
wxStringBufferLength(wxString& str, size_t lenWanted = 1024)
|
|
: m_str(str), m_buf(NULL), m_len(0), m_lenSet(false)
|
|
{
|
|
m_buf = m_str.GetWriteBuf(lenWanted);
|
|
wxASSERT(m_buf != NULL);
|
|
}
|
|
|
|
~wxStringBufferLength()
|
|
{
|
|
wxASSERT(m_lenSet);
|
|
m_str.UngetWriteBuf(m_len);
|
|
}
|
|
|
|
operator wxChar*() const { return m_buf; }
|
|
void SetLength(size_t length) { m_len = length; m_lenSet = true; }
|
|
|
|
private:
|
|
wxString& m_str;
|
|
wxChar *m_buf;
|
|
size_t m_len;
|
|
bool m_lenSet;
|
|
|
|
DECLARE_NO_COPY_CLASS(wxStringBufferLength)
|
|
};
|
|
|
|
#endif // !wxUSE_STL
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// wxString comparison functions: operator versions are always case sensitive
|
|
// ---------------------------------------------------------------------------
|
|
|
|
// note that when wxUSE_STL == 1 the comparison operators taking std::string
|
|
// are used and defining them also for wxString would only result in
|
|
// compilation ambiguities when comparing std::string and wxString
|
|
#if !wxUSE_STL
|
|
|
|
inline bool operator==(const wxString& s1, const wxString& s2)
|
|
{ return (s1.Len() == s2.Len()) && (s1.Cmp(s2) == 0); }
|
|
inline bool operator==(const wxString& s1, const wxChar * s2)
|
|
{ return s1.Cmp(s2) == 0; }
|
|
inline bool operator==(const wxChar * s1, const wxString& s2)
|
|
{ return s2.Cmp(s1) == 0; }
|
|
inline bool operator!=(const wxString& s1, const wxString& s2)
|
|
{ return (s1.Len() != s2.Len()) || (s1.Cmp(s2) != 0); }
|
|
inline bool operator!=(const wxString& s1, const wxChar * s2)
|
|
{ return s1.Cmp(s2) != 0; }
|
|
inline bool operator!=(const wxChar * s1, const wxString& s2)
|
|
{ return s2.Cmp(s1) != 0; }
|
|
inline bool operator< (const wxString& s1, const wxString& s2)
|
|
{ return s1.Cmp(s2) < 0; }
|
|
inline bool operator< (const wxString& s1, const wxChar * s2)
|
|
{ return s1.Cmp(s2) < 0; }
|
|
inline bool operator< (const wxChar * s1, const wxString& s2)
|
|
{ return s2.Cmp(s1) > 0; }
|
|
inline bool operator> (const wxString& s1, const wxString& s2)
|
|
{ return s1.Cmp(s2) > 0; }
|
|
inline bool operator> (const wxString& s1, const wxChar * s2)
|
|
{ return s1.Cmp(s2) > 0; }
|
|
inline bool operator> (const wxChar * s1, const wxString& s2)
|
|
{ return s2.Cmp(s1) < 0; }
|
|
inline bool operator<=(const wxString& s1, const wxString& s2)
|
|
{ return s1.Cmp(s2) <= 0; }
|
|
inline bool operator<=(const wxString& s1, const wxChar * s2)
|
|
{ return s1.Cmp(s2) <= 0; }
|
|
inline bool operator<=(const wxChar * s1, const wxString& s2)
|
|
{ return s2.Cmp(s1) >= 0; }
|
|
inline bool operator>=(const wxString& s1, const wxString& s2)
|
|
{ return s1.Cmp(s2) >= 0; }
|
|
inline bool operator>=(const wxString& s1, const wxChar * s2)
|
|
{ return s1.Cmp(s2) >= 0; }
|
|
inline bool operator>=(const wxChar * s1, const wxString& s2)
|
|
{ return s2.Cmp(s1) <= 0; }
|
|
|
|
#if wxUSE_UNICODE
|
|
inline bool operator==(const wxString& s1, const wxWCharBuffer& s2)
|
|
{ return (s1.Cmp((const wchar_t *)s2) == 0); }
|
|
inline bool operator==(const wxWCharBuffer& s1, const wxString& s2)
|
|
{ return (s2.Cmp((const wchar_t *)s1) == 0); }
|
|
inline bool operator!=(const wxString& s1, const wxWCharBuffer& s2)
|
|
{ return (s1.Cmp((const wchar_t *)s2) != 0); }
|
|
inline bool operator!=(const wxWCharBuffer& s1, const wxString& s2)
|
|
{ return (s2.Cmp((const wchar_t *)s1) != 0); }
|
|
#else // !wxUSE_UNICODE
|
|
inline bool operator==(const wxString& s1, const wxCharBuffer& s2)
|
|
{ return (s1.Cmp((const char *)s2) == 0); }
|
|
inline bool operator==(const wxCharBuffer& s1, const wxString& s2)
|
|
{ return (s2.Cmp((const char *)s1) == 0); }
|
|
inline bool operator!=(const wxString& s1, const wxCharBuffer& s2)
|
|
{ return (s1.Cmp((const char *)s2) != 0); }
|
|
inline bool operator!=(const wxCharBuffer& s1, const wxString& s2)
|
|
{ return (s2.Cmp((const char *)s1) != 0); }
|
|
#endif // wxUSE_UNICODE/!wxUSE_UNICODE
|
|
|
|
#if wxUSE_UNICODE
|
|
inline wxString operator+(const wxString& string, const wxWCharBuffer& buf)
|
|
{ return string + (const wchar_t *)buf; }
|
|
inline wxString operator+(const wxWCharBuffer& buf, const wxString& string)
|
|
{ return (const wchar_t *)buf + string; }
|
|
#else // !wxUSE_UNICODE
|
|
inline wxString operator+(const wxString& string, const wxCharBuffer& buf)
|
|
{ return string + (const char *)buf; }
|
|
inline wxString operator+(const wxCharBuffer& buf, const wxString& string)
|
|
{ return (const char *)buf + string; }
|
|
#endif // wxUSE_UNICODE/!wxUSE_UNICODE
|
|
|
|
#endif // !wxUSE_STL
|
|
|
|
// comparison with char (those are not defined by std::[w]string and so should
|
|
// be always available)
|
|
inline bool operator==(wxChar c, const wxString& s) { return s.IsSameAs(c); }
|
|
inline bool operator==(const wxString& s, wxChar c) { return s.IsSameAs(c); }
|
|
inline bool operator!=(wxChar c, const wxString& s) { return !s.IsSameAs(c); }
|
|
inline bool operator!=(const wxString& s, wxChar c) { return !s.IsSameAs(c); }
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Implementation only from here until the end of file
|
|
// ---------------------------------------------------------------------------
|
|
|
|
// don't pollute the library user's name space
|
|
#undef wxASSERT_VALID_INDEX
|
|
|
|
#if wxUSE_STD_IOSTREAM
|
|
|
|
#include "wx/iosfwrap.h"
|
|
|
|
WXDLLIMPEXP_BASE wxSTD istream& operator>>(wxSTD istream&, wxString&);
|
|
WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxString&);
|
|
|
|
#endif // wxSTD_STRING_COMPATIBILITY
|
|
|
|
#endif // _WX_WXSTRINGH__
|