4351 lines
159 KiB
C++
4351 lines
159 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/string.h
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// Purpose: wxString class
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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: string.h 67181 2011-03-13 13:53:54Z VZ $
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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_WXSTRING_H__
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#define _WX_WXSTRING_H__
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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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#ifndef __WXPALMOS5__
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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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#endif // ! __WXPALMOS5__
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#include "wx/wxcrtbase.h" // for wxChar, wxStrlen() etc.
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#include "wx/strvararg.h"
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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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#include "wx/stringimpl.h"
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#include "wx/stringops.h"
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#include "wx/unichar.h"
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// by default we cache the mapping of the positions in UTF-8 string to the byte
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// offset as this results in noticeable performance improvements for loops over
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// strings using indices; comment out this line to disable this
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//
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// notice that this optimization is well worth using even in debug builds as it
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// changes asymptotic complexity of algorithms using indices to iterate over
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// wxString back to expected linear from quadratic
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//
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// also notice that wxTLS_TYPE() (__declspec(thread) in this case) is unsafe to
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// use in DLL build under pre-Vista Windows so we disable this code for now, if
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// anybody really needs to use UTF-8 build under Windows with this optimization
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// it would have to be re-tested and probably corrected
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// CS: under OSX release builds the string destructor/cache cleanup sometimes
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// crashes, disable until we find the true reason or a better workaround
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#if wxUSE_UNICODE_UTF8 && !defined(__WXMSW__) && !defined(__WXOSX__)
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#define wxUSE_STRING_POS_CACHE 1
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#else
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#define wxUSE_STRING_POS_CACHE 0
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#endif
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#if wxUSE_STRING_POS_CACHE
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#include "wx/tls.h"
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// change this 0 to 1 to enable additional (very expensive) asserts
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// verifying that string caching logic works as expected
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#if 0
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#define wxSTRING_CACHE_ASSERT(cond) wxASSERT(cond)
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#else
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#define wxSTRING_CACHE_ASSERT(cond)
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#endif
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#endif // wxUSE_STRING_POS_CACHE
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class WXDLLIMPEXP_FWD_BASE wxString;
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// unless this symbol is predefined to disable the compatibility functions, do
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// use them
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#ifndef WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
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#define WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER 1
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#endif
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namespace wxPrivate
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{
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template <typename T> struct wxStringAsBufHelper;
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}
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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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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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#if WXWIN_COMPATIBILITY_2_6
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// deprecated in favour of wxString::npos, don't use in new code
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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 wxString::npos
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#endif // WXWIN_COMPATIBILITY_2_6
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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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#if WXWIN_COMPATIBILITY_2_8
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// Use wxXXX() functions from wxcrt.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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wxDEPRECATED( inline bool IsEmpty(const char *p) );
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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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wxDEPRECATED( inline size_t Strlen(const char *psz) );
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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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wxDEPRECATED( inline int Stricmp(const char *psz1, const char *psz2) );
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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(__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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#endif // WXWIN_COMPATIBILITY_2_8
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// ----------------------------------------------------------------------------
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// wxCStrData
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// ----------------------------------------------------------------------------
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// Lightweight object returned by wxString::c_str() and implicitly convertible
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// to either const char* or const wchar_t*.
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class wxCStrData
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{
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private:
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// Ctors; for internal use by wxString and wxCStrData only
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wxCStrData(const wxString *str, size_t offset = 0, bool owned = false)
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: m_str(str), m_offset(offset), m_owned(owned) {}
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public:
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// Ctor constructs the object from char literal; they are needed to make
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// operator?: compile and they intentionally take char*, not const char*
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inline wxCStrData(char *buf);
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inline wxCStrData(wchar_t *buf);
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inline wxCStrData(const wxCStrData& data);
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inline ~wxCStrData();
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// AsWChar() and AsChar() can't be defined here as they use wxString and so
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// must come after it and because of this won't be inlined when called from
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// wxString methods (without a lot of work to extract these wxString methods
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// from inside the class itself). But we still define them being inline
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// below to let compiler inline them from elsewhere. And because of this we
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// must declare them as inline here because otherwise some compilers give
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// warnings about them, e.g. mingw32 3.4.5 warns about "<symbol> defined
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// locally after being referenced with dllimport linkage" while IRIX
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// mipsPro 7.4 warns about "function declared inline after being called".
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inline const wchar_t* AsWChar() const;
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operator const wchar_t*() const { return AsWChar(); }
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inline const char* AsChar() const;
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const unsigned char* AsUnsignedChar() const
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{ return (const unsigned char *) AsChar(); }
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operator const char*() const { return AsChar(); }
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operator const unsigned char*() const { return AsUnsignedChar(); }
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operator const void*() const { return AsChar(); }
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// returns buffers that are valid as long as the associated wxString exists
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const wxScopedCharBuffer AsCharBuf() const
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{
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return wxScopedCharBuffer::CreateNonOwned(AsChar());
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}
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const wxScopedWCharBuffer AsWCharBuf() const
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{
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return wxScopedWCharBuffer::CreateNonOwned(AsWChar());
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}
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inline wxString AsString() const;
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// returns the value as C string in internal representation (equivalent
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// to AsString().wx_str(), but more efficient)
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const wxStringCharType *AsInternal() const;
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// allow expressions like "c_str()[0]":
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inline wxUniChar operator[](size_t n) const;
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wxUniChar operator[](int n) const { return operator[](size_t(n)); }
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wxUniChar operator[](long n) const { return operator[](size_t(n)); }
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#ifndef wxSIZE_T_IS_UINT
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wxUniChar operator[](unsigned int n) const { return operator[](size_t(n)); }
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#endif // size_t != unsigned int
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// These operators are needed to emulate the pointer semantics of c_str():
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// expressions like "wxChar *p = str.c_str() + 1;" should continue to work
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// (we need both versions to resolve ambiguities). Note that this means
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// the 'n' value is interpreted as addition to char*/wchar_t* pointer, it
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// is *not* number of Unicode characters in wxString.
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wxCStrData operator+(int n) const
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{ return wxCStrData(m_str, m_offset + n, m_owned); }
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wxCStrData operator+(long n) const
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{ return wxCStrData(m_str, m_offset + n, m_owned); }
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wxCStrData operator+(size_t n) const
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{ return wxCStrData(m_str, m_offset + n, m_owned); }
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// and these for "str.c_str() + (p2 - p1)" (it also works for any integer
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// expression but it must be ptrdiff_t and not e.g. int to work in this
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// example):
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wxCStrData operator-(ptrdiff_t n) const
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{
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wxASSERT_MSG( n <= (ptrdiff_t)m_offset,
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wxT("attempt to construct address before the beginning of the string") );
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return wxCStrData(m_str, m_offset - n, m_owned);
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}
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// this operator is needed to make expressions like "*c_str()" or
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// "*(c_str() + 2)" work
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inline wxUniChar operator*() const;
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private:
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// the wxString this object was returned for
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const wxString *m_str;
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// Offset into c_str() return value. Note that this is *not* offset in
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// m_str in Unicode characters. Instead, it is index into the
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// char*/wchar_t* buffer returned by c_str(). It's interpretation depends
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// on how is the wxCStrData instance used: if it is eventually cast to
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// const char*, m_offset will be in bytes form string's start; if it is
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// cast to const wchar_t*, it will be in wchar_t values.
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size_t m_offset;
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// should m_str be deleted, i.e. is it owned by us?
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bool m_owned;
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friend class WXDLLIMPEXP_FWD_BASE wxString;
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};
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// ----------------------------------------------------------------------------
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// wxStringPrintfMixin
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// ---------------------------------------------------------------------------
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// NB: VC6 has a bug that causes linker errors if you have template methods
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// in a class using __declspec(dllimport). The solution is to split such
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// class into two classes, one that contains the template methods and does
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// *not* use WXDLLIMPEXP_BASE and another class that contains the rest
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// (with DLL linkage).
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//
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// We only do this for VC6 here, because the code is less efficient
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// (Printf() has to use dynamic_cast<>) and because OpenWatcom compiler
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// cannot compile this code.
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#if defined(__VISUALC__) && __VISUALC__ < 1300
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#define wxNEEDS_WXSTRING_PRINTF_MIXIN
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#endif
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#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
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// this class contains implementation of wxString's vararg methods, it's
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// exported from wxBase DLL
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class WXDLLIMPEXP_BASE wxStringPrintfMixinBase
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{
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protected:
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wxStringPrintfMixinBase() {}
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#if !wxUSE_UTF8_LOCALE_ONLY
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int DoPrintfWchar(const wxChar *format, ...);
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static wxString DoFormatWchar(const wxChar *format, ...);
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#endif
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#if wxUSE_UNICODE_UTF8
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int DoPrintfUtf8(const char *format, ...);
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static wxString DoFormatUtf8(const char *format, ...);
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#endif
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};
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// this class contains template wrappers for wxString's vararg methods, it's
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// intentionally *not* exported from the DLL in order to fix the VC6 bug
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// described above
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class wxStringPrintfMixin : public wxStringPrintfMixinBase
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{
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private:
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// to further complicate things, we can't return wxString from
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// wxStringPrintfMixin::Format() because wxString is not yet declared at
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// this point; the solution is to use this fake type trait template - this
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// way the compiler won't know the return type until Format() is used
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// (this doesn't compile with Watcom, but VC6 compiles it just fine):
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template<typename T> struct StringReturnType
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{
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typedef wxString type;
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};
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public:
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// these are duplicated wxString methods, they're also declared below
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// if !wxNEEDS_WXSTRING_PRINTF_MIXIN:
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// static wxString Format(const wString& format, ...) WX_ATTRIBUTE_PRINTF_1;
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WX_DEFINE_VARARG_FUNC_SANS_N0(static typename StringReturnType<T1>::type,
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Format, 1, (const wxFormatString&),
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DoFormatWchar, DoFormatUtf8)
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// We have to implement the version without template arguments manually
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// because of the StringReturnType<> hack, although WX_DEFINE_VARARG_FUNC
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// normally does it itself. It has to be a template so that we can use
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// the hack, even though there's no real template parameter. We can't move
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// it to wxStrig, because it would shadow these versions of Format() then.
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template<typename T>
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inline static typename StringReturnType<T>::type
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Format(const T& fmt)
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{
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// NB: this doesn't compile if T is not (some form of) a string;
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// this makes Format's prototype equivalent to
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// Format(const wxFormatString& fmt)
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return DoFormatWchar(wxFormatString(fmt));
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}
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// int Printf(const wxString& format, ...);
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WX_DEFINE_VARARG_FUNC(int, Printf, 1, (const wxFormatString&),
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DoPrintfWchar, DoPrintfUtf8)
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// int sprintf(const wxString& format, ...) WX_ATTRIBUTE_PRINTF_2;
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WX_DEFINE_VARARG_FUNC(int, sprintf, 1, (const wxFormatString&),
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DoPrintfWchar, DoPrintfUtf8)
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protected:
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wxStringPrintfMixin() : wxStringPrintfMixinBase() {}
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};
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#endif // wxNEEDS_WXSTRING_PRINTF_MIXIN
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// ----------------------------------------------------------------------------
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// wxString: string class trying to be compatible with std::string, MFC
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// CString and wxWindows 1.x wxString all at once
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// ---------------------------------------------------------------------------
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#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
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// "non dll-interface class 'wxStringPrintfMixin' used as base interface
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// for dll-interface class 'wxString'" -- this is OK in our case
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#pragma warning (push)
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#pragma warning (disable:4275)
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#endif
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#if wxUSE_UNICODE_UTF8
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// see the comment near wxString::iterator for why we need this
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class WXDLLIMPEXP_BASE wxStringIteratorNode
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{
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public:
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wxStringIteratorNode()
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: m_str(NULL), m_citer(NULL), m_iter(NULL), m_prev(NULL), m_next(NULL) {}
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wxStringIteratorNode(const wxString *str,
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wxStringImpl::const_iterator *citer)
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{ DoSet(str, citer, NULL); }
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wxStringIteratorNode(const wxString *str, wxStringImpl::iterator *iter)
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{ DoSet(str, NULL, iter); }
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~wxStringIteratorNode()
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{ clear(); }
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inline void set(const wxString *str, wxStringImpl::const_iterator *citer)
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{ clear(); DoSet(str, citer, NULL); }
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inline void set(const wxString *str, wxStringImpl::iterator *iter)
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{ clear(); DoSet(str, NULL, iter); }
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const wxString *m_str;
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wxStringImpl::const_iterator *m_citer;
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wxStringImpl::iterator *m_iter;
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wxStringIteratorNode *m_prev, *m_next;
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private:
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inline void clear();
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inline void DoSet(const wxString *str,
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wxStringImpl::const_iterator *citer,
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wxStringImpl::iterator *iter);
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// the node belongs to a particular iterator instance, it's not copied
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// when a copy of the iterator is made
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wxDECLARE_NO_COPY_CLASS(wxStringIteratorNode);
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};
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#endif // wxUSE_UNICODE_UTF8
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class WXDLLIMPEXP_BASE wxString
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#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
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: public wxStringPrintfMixin
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#endif
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{
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// NB: special care was taken in arranging the member functions in such order
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// that all inline functions can be effectively inlined, verify that all
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// performance critical functions are still inlined if you change order!
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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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private:
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// if we hadn't made these operators private, it would be possible to
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// compile "wxString s; s = 17;" without any warnings as 17 is implicitly
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// converted to char in C and we do have operator=(char)
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//
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// NB: we don't need other versions (short/long and unsigned) as attempt
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// to assign another numeric type to wxString will now result in
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// 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);
|
|
|
|
|
|
// buffer for holding temporary substring when using any of the methods
|
|
// that take (char*,size_t) or (wchar_t*,size_t) arguments:
|
|
template<typename T>
|
|
struct SubstrBufFromType
|
|
{
|
|
T data;
|
|
size_t len;
|
|
|
|
SubstrBufFromType(const T& data_, size_t len_)
|
|
: data(data_), len(len_)
|
|
{
|
|
wxASSERT_MSG( len != npos, "must have real length" );
|
|
}
|
|
};
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
// even char* -> char* needs conversion, from locale charset to UTF-8
|
|
typedef SubstrBufFromType<wxScopedCharBuffer> SubstrBufFromWC;
|
|
typedef SubstrBufFromType<wxScopedCharBuffer> SubstrBufFromMB;
|
|
#elif wxUSE_UNICODE_WCHAR
|
|
typedef SubstrBufFromType<const wchar_t*> SubstrBufFromWC;
|
|
typedef SubstrBufFromType<wxScopedWCharBuffer> SubstrBufFromMB;
|
|
#else
|
|
typedef SubstrBufFromType<const char*> SubstrBufFromMB;
|
|
typedef SubstrBufFromType<wxScopedCharBuffer> SubstrBufFromWC;
|
|
#endif
|
|
|
|
|
|
// Functions implementing primitive operations on string data; wxString
|
|
// methods and iterators are implemented in terms of it. The differences
|
|
// between UTF-8 and wchar_t* representations of the string are mostly
|
|
// contained here.
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
static SubstrBufFromMB ConvertStr(const char *psz, size_t nLength,
|
|
const wxMBConv& conv);
|
|
static SubstrBufFromWC ConvertStr(const wchar_t *pwz, size_t nLength,
|
|
const wxMBConv& conv);
|
|
#elif wxUSE_UNICODE_WCHAR
|
|
static SubstrBufFromMB ConvertStr(const char *psz, size_t nLength,
|
|
const wxMBConv& conv);
|
|
#else
|
|
static SubstrBufFromWC ConvertStr(const wchar_t *pwz, size_t nLength,
|
|
const wxMBConv& conv);
|
|
#endif
|
|
|
|
#if !wxUSE_UNICODE_UTF8 // wxUSE_UNICODE_WCHAR or !wxUSE_UNICODE
|
|
// returns C string encoded as the implementation expects:
|
|
#if wxUSE_UNICODE
|
|
static const wchar_t* ImplStr(const wchar_t* str)
|
|
{ return str ? str : wxT(""); }
|
|
static const SubstrBufFromWC ImplStr(const wchar_t* str, size_t n)
|
|
{ return SubstrBufFromWC(str, (str && n == npos) ? wxWcslen(str) : n); }
|
|
static wxScopedWCharBuffer ImplStr(const char* str,
|
|
const wxMBConv& conv = wxConvLibc)
|
|
{ return ConvertStr(str, npos, conv).data; }
|
|
static SubstrBufFromMB ImplStr(const char* str, size_t n,
|
|
const wxMBConv& conv = wxConvLibc)
|
|
{ return ConvertStr(str, n, conv); }
|
|
#else
|
|
static const char* ImplStr(const char* str,
|
|
const wxMBConv& WXUNUSED(conv) = wxConvLibc)
|
|
{ return str ? str : ""; }
|
|
static const SubstrBufFromMB ImplStr(const char* str, size_t n,
|
|
const wxMBConv& WXUNUSED(conv) = wxConvLibc)
|
|
{ return SubstrBufFromMB(str, (str && n == npos) ? wxStrlen(str) : n); }
|
|
static wxScopedCharBuffer ImplStr(const wchar_t* str)
|
|
{ return ConvertStr(str, npos, wxConvLibc).data; }
|
|
static SubstrBufFromWC ImplStr(const wchar_t* str, size_t n)
|
|
{ return ConvertStr(str, n, wxConvLibc); }
|
|
#endif
|
|
|
|
// translates position index in wxString to/from index in underlying
|
|
// wxStringImpl:
|
|
static size_t PosToImpl(size_t pos) { return pos; }
|
|
static void PosLenToImpl(size_t pos, size_t len,
|
|
size_t *implPos, size_t *implLen)
|
|
{ *implPos = pos; *implLen = len; }
|
|
static size_t LenToImpl(size_t len) { return len; }
|
|
static size_t PosFromImpl(size_t pos) { return pos; }
|
|
|
|
// we don't want to define these as empty inline functions as it could
|
|
// result in noticeable (and quite unnecessary in non-UTF-8 build) slowdown
|
|
// in debug build where the inline functions are not effectively inlined
|
|
#define wxSTRING_INVALIDATE_CACHE()
|
|
#define wxSTRING_INVALIDATE_CACHED_LENGTH()
|
|
#define wxSTRING_UPDATE_CACHED_LENGTH(n)
|
|
#define wxSTRING_SET_CACHED_LENGTH(n)
|
|
|
|
#else // wxUSE_UNICODE_UTF8
|
|
|
|
static wxScopedCharBuffer ImplStr(const char* str,
|
|
const wxMBConv& conv = wxConvLibc)
|
|
{ return ConvertStr(str, npos, conv).data; }
|
|
static SubstrBufFromMB ImplStr(const char* str, size_t n,
|
|
const wxMBConv& conv = wxConvLibc)
|
|
{ return ConvertStr(str, n, conv); }
|
|
|
|
static wxScopedCharBuffer ImplStr(const wchar_t* str)
|
|
{ return ConvertStr(str, npos, wxMBConvUTF8()).data; }
|
|
static SubstrBufFromWC ImplStr(const wchar_t* str, size_t n)
|
|
{ return ConvertStr(str, n, wxMBConvUTF8()); }
|
|
|
|
#if wxUSE_STRING_POS_CACHE
|
|
// this is an extremely simple cache used by PosToImpl(): each cache element
|
|
// contains the string it applies to and the index corresponding to the last
|
|
// used position in this wxString in its m_impl string
|
|
//
|
|
// NB: notice that this struct (and nested Element one) must be a POD or we
|
|
// wouldn't be able to use a thread-local variable of this type, in
|
|
// particular it should have no ctor -- we rely on statics being
|
|
// initialized to 0 instead
|
|
struct Cache
|
|
{
|
|
enum { SIZE = 8 };
|
|
|
|
struct Element
|
|
{
|
|
const wxString *str; // the string to which this element applies
|
|
size_t pos, // the cached index in this string
|
|
impl, // the corresponding position in its m_impl
|
|
len; // cached length or npos if unknown
|
|
|
|
// reset cached index to 0
|
|
void ResetPos() { pos = impl = 0; }
|
|
|
|
// reset position and length
|
|
void Reset() { ResetPos(); len = npos; }
|
|
};
|
|
|
|
// cache the indices mapping for the last few string used
|
|
Element cached[SIZE];
|
|
|
|
// the last used index
|
|
unsigned lastUsed;
|
|
};
|
|
|
|
#ifndef wxHAS_COMPILER_TLS
|
|
// we must use an accessor function and not a static variable when the TLS
|
|
// variables support is implemented in the library (and not by the compiler)
|
|
// because the global s_cache variable could be not yet initialized when a
|
|
// ctor of another global object is executed and if that ctor uses any
|
|
// wxString methods, bad things happen
|
|
//
|
|
// however notice that this approach does not work when compiler TLS is used,
|
|
// at least not with g++ 4.1.2 under amd64 as it apparently compiles code
|
|
// using this accessor incorrectly when optimizations are enabled (-O2 is
|
|
// enough) -- luckily we don't need it then neither as static __thread
|
|
// variables are initialized by 0 anyhow then and so we can use the variable
|
|
// directly
|
|
WXEXPORT static Cache& GetCache()
|
|
{
|
|
static wxTLS_TYPE(Cache) s_cache;
|
|
|
|
return wxTLS_VALUE(s_cache);
|
|
}
|
|
|
|
// this helper struct is used to ensure that GetCache() is called during
|
|
// static initialization time, i.e. before any threads creation, as otherwise
|
|
// the static s_cache construction inside GetCache() wouldn't be MT-safe
|
|
friend struct wxStrCacheInitializer;
|
|
#else // wxHAS_COMPILER_TLS
|
|
static wxTLS_TYPE(Cache) ms_cache;
|
|
static Cache& GetCache() { return wxTLS_VALUE(ms_cache); }
|
|
#endif // !wxHAS_COMPILER_TLS/wxHAS_COMPILER_TLS
|
|
|
|
static Cache::Element *GetCacheBegin() { return GetCache().cached; }
|
|
static Cache::Element *GetCacheEnd() { return GetCacheBegin() + Cache::SIZE; }
|
|
static unsigned& LastUsedCacheElement() { return GetCache().lastUsed; }
|
|
|
|
// this is used in debug builds only to provide a convenient function,
|
|
// callable from a debugger, to show the cache contents
|
|
friend struct wxStrCacheDumper;
|
|
|
|
// uncomment this to have access to some profiling statistics on program
|
|
// termination
|
|
//#define wxPROFILE_STRING_CACHE
|
|
|
|
#ifdef wxPROFILE_STRING_CACHE
|
|
static struct PosToImplCacheStats
|
|
{
|
|
unsigned postot, // total non-trivial calls to PosToImpl
|
|
poshits, // cache hits from PosToImpl()
|
|
mishits, // cached position beyond the needed one
|
|
sumpos, // sum of all positions, used to compute the
|
|
// average position after dividing by postot
|
|
sumofs, // sum of all offsets after using the cache, used to
|
|
// compute the average after dividing by hits
|
|
lentot, // number of total calls to length()
|
|
lenhits; // number of cache hits in length()
|
|
} ms_cacheStats;
|
|
|
|
friend struct wxStrCacheStatsDumper;
|
|
|
|
#define wxCACHE_PROFILE_FIELD_INC(field) ms_cacheStats.field++
|
|
#define wxCACHE_PROFILE_FIELD_ADD(field, val) ms_cacheStats.field += (val)
|
|
#else // !wxPROFILE_STRING_CACHE
|
|
#define wxCACHE_PROFILE_FIELD_INC(field)
|
|
#define wxCACHE_PROFILE_FIELD_ADD(field, val)
|
|
#endif // wxPROFILE_STRING_CACHE/!wxPROFILE_STRING_CACHE
|
|
|
|
// note: it could seem that the functions below shouldn't be inline because
|
|
// they are big, contain loops and so the compiler shouldn't be able to
|
|
// inline them anyhow, however moving them into string.cpp does decrease the
|
|
// code performance by ~5%, at least when using g++ 4.1 so do keep them here
|
|
// unless tests show that it's not advantageous any more
|
|
|
|
// return the pointer to the cache element for this string or NULL if not
|
|
// cached
|
|
Cache::Element *FindCacheElement() const
|
|
{
|
|
// profiling seems to show a small but consistent gain if we use this
|
|
// simple loop instead of starting from the last used element (there are
|
|
// a lot of misses in this function...)
|
|
Cache::Element * const cacheBegin = GetCacheBegin();
|
|
#ifndef wxHAS_COMPILER_TLS
|
|
// during destruction tls calls may return NULL, in this case return NULL
|
|
// immediately without accessing anything else
|
|
if ( cacheBegin == NULL )
|
|
return NULL;
|
|
#endif
|
|
Cache::Element * const cacheEnd = GetCacheEnd();
|
|
for ( Cache::Element *c = cacheBegin; c != cacheEnd; c++ )
|
|
{
|
|
if ( c->str == this )
|
|
return c;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
// unlike FindCacheElement(), this one always returns a valid pointer to the
|
|
// cache element for this string, it may have valid last cached position and
|
|
// its corresponding index in the byte string or not
|
|
Cache::Element *GetCacheElement() const
|
|
{
|
|
Cache::Element * const cacheBegin = GetCacheBegin();
|
|
Cache::Element * const cacheEnd = GetCacheEnd();
|
|
Cache::Element * const cacheStart = cacheBegin + LastUsedCacheElement();
|
|
|
|
// check the last used first, this does no (measurable) harm for a miss
|
|
// but does help for simple loops addressing the same string all the time
|
|
if ( cacheStart->str == this )
|
|
return cacheStart;
|
|
|
|
// notice that we're going to check cacheStart again inside this call but
|
|
// profiling shows that it's still faster to use a simple loop like
|
|
// inside FindCacheElement() than manually looping with wrapping starting
|
|
// from the cache entry after the start one
|
|
Cache::Element *c = FindCacheElement();
|
|
if ( !c )
|
|
{
|
|
// claim the next cache entry for this string
|
|
c = cacheStart;
|
|
if ( ++c == cacheEnd )
|
|
c = cacheBegin;
|
|
|
|
c->str = this;
|
|
c->Reset();
|
|
|
|
// and remember the last used element
|
|
LastUsedCacheElement() = c - cacheBegin;
|
|
}
|
|
|
|
return c;
|
|
}
|
|
|
|
size_t DoPosToImpl(size_t pos) const
|
|
{
|
|
wxCACHE_PROFILE_FIELD_INC(postot);
|
|
|
|
// NB: although the case of pos == 1 (and offset from cached position
|
|
// equal to 1) are common, nothing is gained by writing special code
|
|
// for handling them, the compiler (at least g++ 4.1 used) seems to
|
|
// optimize the code well enough on its own
|
|
|
|
wxCACHE_PROFILE_FIELD_ADD(sumpos, pos);
|
|
|
|
Cache::Element * const cache = GetCacheElement();
|
|
|
|
// cached position can't be 0 so if it is, it means that this entry was
|
|
// used for length caching only so far, i.e. it doesn't count as a hit
|
|
// from our point of view
|
|
if ( cache->pos )
|
|
{
|
|
wxCACHE_PROFILE_FIELD_INC(poshits);
|
|
}
|
|
|
|
if ( pos == cache->pos )
|
|
return cache->impl;
|
|
|
|
// this seems to happen only rarely so just reset the cache in this case
|
|
// instead of complicating code even further by seeking backwards in this
|
|
// case
|
|
if ( cache->pos > pos )
|
|
{
|
|
wxCACHE_PROFILE_FIELD_INC(mishits);
|
|
|
|
cache->ResetPos();
|
|
}
|
|
|
|
wxCACHE_PROFILE_FIELD_ADD(sumofs, pos - cache->pos);
|
|
|
|
|
|
wxStringImpl::const_iterator i(m_impl.begin() + cache->impl);
|
|
for ( size_t n = cache->pos; n < pos; n++ )
|
|
wxStringOperations::IncIter(i);
|
|
|
|
cache->pos = pos;
|
|
cache->impl = i - m_impl.begin();
|
|
|
|
wxSTRING_CACHE_ASSERT(
|
|
(int)cache->impl == (begin() + pos).impl() - m_impl.begin() );
|
|
|
|
return cache->impl;
|
|
}
|
|
|
|
void InvalidateCache()
|
|
{
|
|
Cache::Element * const cache = FindCacheElement();
|
|
if ( cache )
|
|
cache->Reset();
|
|
}
|
|
|
|
void InvalidateCachedLength()
|
|
{
|
|
Cache::Element * const cache = FindCacheElement();
|
|
if ( cache )
|
|
cache->len = npos;
|
|
}
|
|
|
|
void SetCachedLength(size_t len)
|
|
{
|
|
// we optimistically cache the length here even if the string wasn't
|
|
// present in the cache before, this seems to do no harm and the
|
|
// potential for avoiding length recomputation for long strings looks
|
|
// interesting
|
|
GetCacheElement()->len = len;
|
|
}
|
|
|
|
void UpdateCachedLength(ptrdiff_t delta)
|
|
{
|
|
Cache::Element * const cache = FindCacheElement();
|
|
if ( cache && cache->len != npos )
|
|
{
|
|
wxSTRING_CACHE_ASSERT( (ptrdiff_t)cache->len + delta >= 0 );
|
|
|
|
cache->len += delta;
|
|
}
|
|
}
|
|
|
|
#define wxSTRING_INVALIDATE_CACHE() InvalidateCache()
|
|
#define wxSTRING_INVALIDATE_CACHED_LENGTH() InvalidateCachedLength()
|
|
#define wxSTRING_UPDATE_CACHED_LENGTH(n) UpdateCachedLength(n)
|
|
#define wxSTRING_SET_CACHED_LENGTH(n) SetCachedLength(n)
|
|
#else // !wxUSE_STRING_POS_CACHE
|
|
size_t DoPosToImpl(size_t pos) const
|
|
{
|
|
return (begin() + pos).impl() - m_impl.begin();
|
|
}
|
|
|
|
#define wxSTRING_INVALIDATE_CACHE()
|
|
#define wxSTRING_INVALIDATE_CACHED_LENGTH()
|
|
#define wxSTRING_UPDATE_CACHED_LENGTH(n)
|
|
#define wxSTRING_SET_CACHED_LENGTH(n)
|
|
#endif // wxUSE_STRING_POS_CACHE/!wxUSE_STRING_POS_CACHE
|
|
|
|
size_t PosToImpl(size_t pos) const
|
|
{
|
|
return pos == 0 || pos == npos ? pos : DoPosToImpl(pos);
|
|
}
|
|
|
|
void PosLenToImpl(size_t pos, size_t len, size_t *implPos, size_t *implLen) const;
|
|
|
|
size_t LenToImpl(size_t len) const
|
|
{
|
|
size_t pos, len2;
|
|
PosLenToImpl(0, len, &pos, &len2);
|
|
return len2;
|
|
}
|
|
|
|
size_t PosFromImpl(size_t pos) const
|
|
{
|
|
if ( pos == 0 || pos == npos )
|
|
return pos;
|
|
else
|
|
return const_iterator(this, m_impl.begin() + pos) - begin();
|
|
}
|
|
#endif // !wxUSE_UNICODE_UTF8/wxUSE_UNICODE_UTF8
|
|
|
|
public:
|
|
// standard types
|
|
typedef wxUniChar value_type;
|
|
typedef wxUniChar char_type;
|
|
typedef wxUniCharRef reference;
|
|
typedef wxChar* pointer;
|
|
typedef const wxChar* const_pointer;
|
|
|
|
typedef size_t size_type;
|
|
typedef wxUniChar const_reference;
|
|
|
|
#if wxUSE_STD_STRING
|
|
#if wxUSE_UNICODE_UTF8
|
|
// random access is not O(1), as required by Random Access Iterator
|
|
#define WX_STR_ITERATOR_TAG std::bidirectional_iterator_tag
|
|
#else
|
|
#define WX_STR_ITERATOR_TAG std::random_access_iterator_tag
|
|
#endif
|
|
#define WX_DEFINE_ITERATOR_CATEGORY(cat) typedef cat iterator_category;
|
|
#else
|
|
// not defining iterator_category at all in this case is better than defining
|
|
// it as some dummy type -- at least it results in more intelligible error
|
|
// messages
|
|
#define WX_DEFINE_ITERATOR_CATEGORY(cat)
|
|
#endif
|
|
|
|
#define WX_STR_ITERATOR_IMPL(iterator_name, pointer_type, reference_type) \
|
|
private: \
|
|
typedef wxStringImpl::iterator_name underlying_iterator; \
|
|
public: \
|
|
WX_DEFINE_ITERATOR_CATEGORY(WX_STR_ITERATOR_TAG) \
|
|
typedef wxUniChar value_type; \
|
|
typedef int difference_type; \
|
|
typedef reference_type reference; \
|
|
typedef pointer_type pointer; \
|
|
\
|
|
reference operator[](size_t n) const { return *(*this + n); } \
|
|
\
|
|
iterator_name& operator++() \
|
|
{ wxStringOperations::IncIter(m_cur); return *this; } \
|
|
iterator_name& operator--() \
|
|
{ wxStringOperations::DecIter(m_cur); return *this; } \
|
|
iterator_name operator++(int) \
|
|
{ \
|
|
iterator_name tmp = *this; \
|
|
wxStringOperations::IncIter(m_cur); \
|
|
return tmp; \
|
|
} \
|
|
iterator_name operator--(int) \
|
|
{ \
|
|
iterator_name tmp = *this; \
|
|
wxStringOperations::DecIter(m_cur); \
|
|
return tmp; \
|
|
} \
|
|
\
|
|
iterator_name& operator+=(ptrdiff_t n) \
|
|
{ \
|
|
m_cur = wxStringOperations::AddToIter(m_cur, n); \
|
|
return *this; \
|
|
} \
|
|
iterator_name& operator-=(ptrdiff_t n) \
|
|
{ \
|
|
m_cur = wxStringOperations::AddToIter(m_cur, -n); \
|
|
return *this; \
|
|
} \
|
|
\
|
|
difference_type operator-(const iterator_name& i) const \
|
|
{ return wxStringOperations::DiffIters(m_cur, i.m_cur); } \
|
|
\
|
|
bool operator==(const iterator_name& i) const \
|
|
{ return m_cur == i.m_cur; } \
|
|
bool operator!=(const iterator_name& i) const \
|
|
{ return m_cur != i.m_cur; } \
|
|
\
|
|
bool operator<(const iterator_name& i) const \
|
|
{ return m_cur < i.m_cur; } \
|
|
bool operator>(const iterator_name& i) const \
|
|
{ return m_cur > i.m_cur; } \
|
|
bool operator<=(const iterator_name& i) const \
|
|
{ return m_cur <= i.m_cur; } \
|
|
bool operator>=(const iterator_name& i) const \
|
|
{ return m_cur >= i.m_cur; } \
|
|
\
|
|
private: \
|
|
/* for internal wxString use only: */ \
|
|
underlying_iterator impl() const { return m_cur; } \
|
|
\
|
|
friend class wxString; \
|
|
friend class wxCStrData; \
|
|
\
|
|
private: \
|
|
underlying_iterator m_cur
|
|
|
|
class WXDLLIMPEXP_FWD_BASE const_iterator;
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
// NB: In UTF-8 build, (non-const) iterator needs to keep reference
|
|
// to the underlying wxStringImpl, because UTF-8 is variable-length
|
|
// encoding and changing the value pointer to by an iterator (using
|
|
// its operator*) requires calling wxStringImpl::replace() if the old
|
|
// and new values differ in their encoding's length.
|
|
//
|
|
// Furthermore, the replace() call may invalid all iterators for the
|
|
// string, so we have to keep track of outstanding iterators and update
|
|
// them if replace() happens.
|
|
//
|
|
// This is implemented by maintaining linked list of iterators for every
|
|
// string and traversing it in wxUniCharRef::operator=(). Head of the
|
|
// list is stored in wxString. (FIXME-UTF8)
|
|
|
|
class WXDLLIMPEXP_BASE iterator
|
|
{
|
|
WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef);
|
|
|
|
public:
|
|
iterator() {}
|
|
iterator(const iterator& i)
|
|
: m_cur(i.m_cur), m_node(i.str(), &m_cur) {}
|
|
iterator& operator=(const iterator& i)
|
|
{
|
|
if (&i != this)
|
|
{
|
|
m_cur = i.m_cur;
|
|
m_node.set(i.str(), &m_cur);
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
reference operator*()
|
|
{ return wxUniCharRef::CreateForString(*str(), m_cur); }
|
|
|
|
iterator operator+(ptrdiff_t n) const
|
|
{ return iterator(str(), wxStringOperations::AddToIter(m_cur, n)); }
|
|
iterator operator-(ptrdiff_t n) const
|
|
{ return iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); }
|
|
|
|
// Normal iterators need to be comparable with the const_iterators so
|
|
// declare the comparison operators and implement them below after the
|
|
// full const_iterator declaration.
|
|
bool operator==(const const_iterator& i) const;
|
|
bool operator!=(const const_iterator& i) const;
|
|
bool operator<(const const_iterator& i) const;
|
|
bool operator>(const const_iterator& i) const;
|
|
bool operator<=(const const_iterator& i) const;
|
|
bool operator>=(const const_iterator& i) const;
|
|
|
|
private:
|
|
iterator(wxString *wxstr, underlying_iterator ptr)
|
|
: m_cur(ptr), m_node(wxstr, &m_cur) {}
|
|
|
|
wxString* str() const { return const_cast<wxString*>(m_node.m_str); }
|
|
|
|
wxStringIteratorNode m_node;
|
|
|
|
friend class const_iterator;
|
|
};
|
|
|
|
class WXDLLIMPEXP_BASE const_iterator
|
|
{
|
|
// NB: reference_type is intentionally value, not reference, the character
|
|
// may be encoded differently in wxString data:
|
|
WX_STR_ITERATOR_IMPL(const_iterator, const wxChar*, wxUniChar);
|
|
|
|
public:
|
|
const_iterator() {}
|
|
const_iterator(const const_iterator& i)
|
|
: m_cur(i.m_cur), m_node(i.str(), &m_cur) {}
|
|
const_iterator(const iterator& i)
|
|
: m_cur(i.m_cur), m_node(i.str(), &m_cur) {}
|
|
|
|
const_iterator& operator=(const const_iterator& i)
|
|
{
|
|
if (&i != this)
|
|
{
|
|
m_cur = i.m_cur;
|
|
m_node.set(i.str(), &m_cur);
|
|
}
|
|
return *this;
|
|
}
|
|
const_iterator& operator=(const iterator& i)
|
|
{ m_cur = i.m_cur; m_node.set(i.str(), &m_cur); return *this; }
|
|
|
|
reference operator*() const
|
|
{ return wxStringOperations::DecodeChar(m_cur); }
|
|
|
|
const_iterator operator+(ptrdiff_t n) const
|
|
{ return const_iterator(str(), wxStringOperations::AddToIter(m_cur, n)); }
|
|
const_iterator operator-(ptrdiff_t n) const
|
|
{ return const_iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); }
|
|
|
|
// Notice that comparison operators taking non-const iterator are not
|
|
// needed here because of the implicit conversion from non-const iterator
|
|
// to const ones ensure that the versions for const_iterator declared
|
|
// inside WX_STR_ITERATOR_IMPL can be used.
|
|
|
|
private:
|
|
// for internal wxString use only:
|
|
const_iterator(const wxString *wxstr, underlying_iterator ptr)
|
|
: m_cur(ptr), m_node(wxstr, &m_cur) {}
|
|
|
|
const wxString* str() const { return m_node.m_str; }
|
|
|
|
wxStringIteratorNode m_node;
|
|
};
|
|
|
|
size_t IterToImplPos(wxString::iterator i) const
|
|
{ return wxStringImpl::const_iterator(i.impl()) - m_impl.begin(); }
|
|
|
|
iterator GetIterForNthChar(size_t n)
|
|
{ return iterator(this, m_impl.begin() + PosToImpl(n)); }
|
|
const_iterator GetIterForNthChar(size_t n) const
|
|
{ return const_iterator(this, m_impl.begin() + PosToImpl(n)); }
|
|
#else // !wxUSE_UNICODE_UTF8
|
|
|
|
class WXDLLIMPEXP_BASE iterator
|
|
{
|
|
WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef);
|
|
|
|
public:
|
|
iterator() {}
|
|
iterator(const iterator& i) : m_cur(i.m_cur) {}
|
|
|
|
reference operator*()
|
|
{ return wxUniCharRef::CreateForString(m_cur); }
|
|
|
|
iterator operator+(ptrdiff_t n) const
|
|
{ return iterator(wxStringOperations::AddToIter(m_cur, n)); }
|
|
iterator operator-(ptrdiff_t n) const
|
|
{ return iterator(wxStringOperations::AddToIter(m_cur, -n)); }
|
|
|
|
// As in UTF-8 case above, define comparison operators taking
|
|
// const_iterator too.
|
|
bool operator==(const const_iterator& i) const;
|
|
bool operator!=(const const_iterator& i) const;
|
|
bool operator<(const const_iterator& i) const;
|
|
bool operator>(const const_iterator& i) const;
|
|
bool operator<=(const const_iterator& i) const;
|
|
bool operator>=(const const_iterator& i) const;
|
|
|
|
private:
|
|
// for internal wxString use only:
|
|
iterator(underlying_iterator ptr) : m_cur(ptr) {}
|
|
iterator(wxString *WXUNUSED(str), underlying_iterator ptr) : m_cur(ptr) {}
|
|
|
|
friend class const_iterator;
|
|
};
|
|
|
|
class WXDLLIMPEXP_BASE const_iterator
|
|
{
|
|
// NB: reference_type is intentionally value, not reference, the character
|
|
// may be encoded differently in wxString data:
|
|
WX_STR_ITERATOR_IMPL(const_iterator, const wxChar*, wxUniChar);
|
|
|
|
public:
|
|
const_iterator() {}
|
|
const_iterator(const const_iterator& i) : m_cur(i.m_cur) {}
|
|
const_iterator(const iterator& i) : m_cur(i.m_cur) {}
|
|
|
|
reference operator*() const
|
|
{ return wxStringOperations::DecodeChar(m_cur); }
|
|
|
|
const_iterator operator+(ptrdiff_t n) const
|
|
{ return const_iterator(wxStringOperations::AddToIter(m_cur, n)); }
|
|
const_iterator operator-(ptrdiff_t n) const
|
|
{ return const_iterator(wxStringOperations::AddToIter(m_cur, -n)); }
|
|
|
|
// As in UTF-8 case above, we don't need comparison operators taking
|
|
// iterator because we have an implicit conversion from iterator to
|
|
// const_iterator so the operators declared by WX_STR_ITERATOR_IMPL will
|
|
// be used.
|
|
|
|
private:
|
|
// for internal wxString use only:
|
|
const_iterator(underlying_iterator ptr) : m_cur(ptr) {}
|
|
const_iterator(const wxString *WXUNUSED(str), underlying_iterator ptr)
|
|
: m_cur(ptr) {}
|
|
};
|
|
|
|
iterator GetIterForNthChar(size_t n) { return begin() + n; }
|
|
const_iterator GetIterForNthChar(size_t n) const { return begin() + n; }
|
|
#endif // wxUSE_UNICODE_UTF8/!wxUSE_UNICODE_UTF8
|
|
|
|
#undef WX_STR_ITERATOR_TAG
|
|
#undef WX_STR_ITERATOR_IMPL
|
|
|
|
friend class iterator;
|
|
friend class const_iterator;
|
|
|
|
template <typename T>
|
|
class reverse_iterator_impl
|
|
{
|
|
public:
|
|
typedef T iterator_type;
|
|
|
|
WX_DEFINE_ITERATOR_CATEGORY(typename T::iterator_category)
|
|
typedef typename T::value_type value_type;
|
|
typedef typename T::difference_type difference_type;
|
|
typedef typename T::reference reference;
|
|
typedef typename T::pointer *pointer;
|
|
|
|
reverse_iterator_impl() {}
|
|
reverse_iterator_impl(iterator_type i) : m_cur(i) {}
|
|
reverse_iterator_impl(const reverse_iterator_impl& ri)
|
|
: m_cur(ri.m_cur) {}
|
|
|
|
iterator_type base() const { return m_cur; }
|
|
|
|
reference operator*() const { return *(m_cur-1); }
|
|
reference operator[](size_t n) const { return *(*this + n); }
|
|
|
|
reverse_iterator_impl& operator++()
|
|
{ --m_cur; return *this; }
|
|
reverse_iterator_impl operator++(int)
|
|
{ reverse_iterator_impl tmp = *this; --m_cur; return tmp; }
|
|
reverse_iterator_impl& operator--()
|
|
{ ++m_cur; return *this; }
|
|
reverse_iterator_impl operator--(int)
|
|
{ reverse_iterator_impl tmp = *this; ++m_cur; return tmp; }
|
|
|
|
// NB: explicit <T> in the functions below is to keep BCC 5.5 happy
|
|
reverse_iterator_impl operator+(ptrdiff_t n) const
|
|
{ return reverse_iterator_impl<T>(m_cur - n); }
|
|
reverse_iterator_impl operator-(ptrdiff_t n) const
|
|
{ return reverse_iterator_impl<T>(m_cur + n); }
|
|
reverse_iterator_impl operator+=(ptrdiff_t n)
|
|
{ m_cur -= n; return *this; }
|
|
reverse_iterator_impl operator-=(ptrdiff_t n)
|
|
{ m_cur += n; return *this; }
|
|
|
|
unsigned operator-(const reverse_iterator_impl& i) const
|
|
{ return i.m_cur - m_cur; }
|
|
|
|
bool operator==(const reverse_iterator_impl& ri) const
|
|
{ return m_cur == ri.m_cur; }
|
|
bool operator!=(const reverse_iterator_impl& ri) const
|
|
{ return !(*this == ri); }
|
|
|
|
bool operator<(const reverse_iterator_impl& i) const
|
|
{ return m_cur > i.m_cur; }
|
|
bool operator>(const reverse_iterator_impl& i) const
|
|
{ return m_cur < i.m_cur; }
|
|
bool operator<=(const reverse_iterator_impl& i) const
|
|
{ return m_cur >= i.m_cur; }
|
|
bool operator>=(const reverse_iterator_impl& i) const
|
|
{ return m_cur <= i.m_cur; }
|
|
|
|
private:
|
|
iterator_type m_cur;
|
|
};
|
|
|
|
typedef reverse_iterator_impl<iterator> reverse_iterator;
|
|
typedef reverse_iterator_impl<const_iterator> const_reverse_iterator;
|
|
|
|
private:
|
|
// used to transform an expression built using c_str() (and hence of type
|
|
// wxCStrData) to an iterator into the string
|
|
static const_iterator CreateConstIterator(const wxCStrData& data)
|
|
{
|
|
return const_iterator(data.m_str,
|
|
(data.m_str->begin() + data.m_offset).impl());
|
|
}
|
|
|
|
// in UTF-8 STL build, creation from std::string requires conversion under
|
|
// non-UTF8 locales, so we can't have and use wxString(wxStringImpl) ctor;
|
|
// instead we define dummy type that lets us have wxString ctor for creation
|
|
// from wxStringImpl that couldn't be used by user code (in all other builds,
|
|
// "standard" ctors can be used):
|
|
#if wxUSE_UNICODE_UTF8 && wxUSE_STL_BASED_WXSTRING
|
|
struct CtorFromStringImplTag {};
|
|
|
|
wxString(CtorFromStringImplTag* WXUNUSED(dummy), const wxStringImpl& src)
|
|
: m_impl(src) {}
|
|
|
|
static wxString FromImpl(const wxStringImpl& src)
|
|
{ return wxString((CtorFromStringImplTag*)NULL, src); }
|
|
#else
|
|
#if !wxUSE_STL_BASED_WXSTRING
|
|
wxString(const wxStringImpl& src) : m_impl(src) { }
|
|
// else: already defined as wxString(wxStdString) below
|
|
#endif
|
|
static wxString FromImpl(const wxStringImpl& src) { return wxString(src); }
|
|
#endif
|
|
|
|
public:
|
|
// constructors and destructor
|
|
// ctor for an empty string
|
|
wxString() {}
|
|
|
|
// copy ctor
|
|
wxString(const wxString& stringSrc) : m_impl(stringSrc.m_impl) { }
|
|
|
|
// string containing nRepeat copies of ch
|
|
wxString(wxUniChar ch, size_t nRepeat = 1 )
|
|
{ assign(nRepeat, ch); }
|
|
wxString(size_t nRepeat, wxUniChar ch)
|
|
{ assign(nRepeat, ch); }
|
|
wxString(wxUniCharRef ch, size_t nRepeat = 1)
|
|
{ assign(nRepeat, ch); }
|
|
wxString(size_t nRepeat, wxUniCharRef ch)
|
|
{ assign(nRepeat, ch); }
|
|
wxString(char ch, size_t nRepeat = 1)
|
|
{ assign(nRepeat, ch); }
|
|
wxString(size_t nRepeat, char ch)
|
|
{ assign(nRepeat, ch); }
|
|
wxString(wchar_t ch, size_t nRepeat = 1)
|
|
{ assign(nRepeat, ch); }
|
|
wxString(size_t nRepeat, wchar_t ch)
|
|
{ assign(nRepeat, ch); }
|
|
|
|
// ctors from char* strings:
|
|
wxString(const char *psz)
|
|
: m_impl(ImplStr(psz)) {}
|
|
wxString(const char *psz, const wxMBConv& conv)
|
|
: m_impl(ImplStr(psz, conv)) {}
|
|
wxString(const char *psz, size_t nLength)
|
|
{ assign(psz, nLength); }
|
|
wxString(const char *psz, const wxMBConv& conv, size_t nLength)
|
|
{
|
|
SubstrBufFromMB str(ImplStr(psz, nLength, conv));
|
|
m_impl.assign(str.data, str.len);
|
|
}
|
|
|
|
// and unsigned char*:
|
|
wxString(const unsigned char *psz)
|
|
: m_impl(ImplStr((const char*)psz)) {}
|
|
wxString(const unsigned char *psz, const wxMBConv& conv)
|
|
: m_impl(ImplStr((const char*)psz, conv)) {}
|
|
wxString(const unsigned char *psz, size_t nLength)
|
|
{ assign((const char*)psz, nLength); }
|
|
wxString(const unsigned char *psz, const wxMBConv& conv, size_t nLength)
|
|
{
|
|
SubstrBufFromMB str(ImplStr((const char*)psz, nLength, conv));
|
|
m_impl.assign(str.data, str.len);
|
|
}
|
|
|
|
// ctors from wchar_t* strings:
|
|
wxString(const wchar_t *pwz)
|
|
: m_impl(ImplStr(pwz)) {}
|
|
wxString(const wchar_t *pwz, const wxMBConv& WXUNUSED(conv))
|
|
: m_impl(ImplStr(pwz)) {}
|
|
wxString(const wchar_t *pwz, size_t nLength)
|
|
{ assign(pwz, nLength); }
|
|
wxString(const wchar_t *pwz, const wxMBConv& WXUNUSED(conv), size_t nLength)
|
|
{ assign(pwz, nLength); }
|
|
|
|
wxString(const wxScopedCharBuffer& buf)
|
|
{ assign(buf.data(), buf.length()); }
|
|
wxString(const wxScopedWCharBuffer& buf)
|
|
{ assign(buf.data(), buf.length()); }
|
|
|
|
// NB: this version uses m_impl.c_str() to force making a copy of the
|
|
// string, so that "wxString(str.c_str())" idiom for passing strings
|
|
// between threads works
|
|
wxString(const wxCStrData& cstr)
|
|
: m_impl(cstr.AsString().m_impl.c_str()) { }
|
|
|
|
// as we provide both ctors with this signature for both char and unsigned
|
|
// char string, we need to provide one for wxCStrData to resolve ambiguity
|
|
wxString(const wxCStrData& cstr, size_t nLength)
|
|
: m_impl(cstr.AsString().Mid(0, nLength).m_impl) {}
|
|
|
|
// and because wxString is convertible to wxCStrData and const wxChar *
|
|
// we also need to provide this one
|
|
wxString(const wxString& str, size_t nLength)
|
|
{ assign(str, nLength); }
|
|
|
|
|
|
#if wxUSE_STRING_POS_CACHE
|
|
~wxString()
|
|
{
|
|
// we need to invalidate our cache entry as another string could be
|
|
// recreated at the same address (unlikely, but still possible, with the
|
|
// heap-allocated strings but perfectly common with stack-allocated ones)
|
|
InvalidateCache();
|
|
}
|
|
#endif // wxUSE_STRING_POS_CACHE
|
|
|
|
// even if we're not built with wxUSE_STL == 1 it is very convenient to allow
|
|
// implicit conversions from std::string to wxString and vice verse 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
|
|
#if wxUSE_UNICODE_WCHAR
|
|
wxString(const wxStdWideString& str) : m_impl(str) {}
|
|
#else // UTF-8 or ANSI
|
|
wxString(const wxStdWideString& str)
|
|
{ assign(str.c_str(), str.length()); }
|
|
#endif
|
|
|
|
#if !wxUSE_UNICODE // ANSI build
|
|
// FIXME-UTF8: do this in UTF8 build #if wxUSE_UTF8_LOCALE_ONLY, too
|
|
wxString(const std::string& str) : m_impl(str) {}
|
|
#else // Unicode
|
|
wxString(const std::string& str)
|
|
{ assign(str.c_str(), str.length()); }
|
|
#endif
|
|
#endif // wxUSE_STD_STRING
|
|
|
|
// Unlike ctor from std::string, we provide conversion to std::string only
|
|
// if wxUSE_STL and not merely wxUSE_STD_STRING (which is on by default),
|
|
// because it conflicts with operator const char/wchar_t* but we still
|
|
// provide explicit conversions to std::[w]string for convenience in any case
|
|
#if wxUSE_STD_STRING
|
|
// We can avoid a copy if we already use this string type internally,
|
|
// otherwise we create a copy on the fly:
|
|
#if wxUSE_UNICODE_WCHAR && wxUSE_STL_BASED_WXSTRING
|
|
#define wxStringToStdWstringRetType const wxStdWideString&
|
|
const wxStdWideString& ToStdWstring() const { return m_impl; }
|
|
#else
|
|
// wxStringImpl is either not std::string or needs conversion
|
|
#define wxStringToStdWstringRetType wxStdWideString
|
|
wxStdWideString ToStdWstring() const
|
|
{
|
|
#if wxUSE_UNICODE_WCHAR
|
|
wxScopedWCharBuffer buf =
|
|
wxScopedWCharBuffer::CreateNonOwned(m_impl.c_str(), m_impl.length());
|
|
#else // !wxUSE_UNICODE_WCHAR
|
|
wxScopedWCharBuffer buf(wc_str());
|
|
#endif
|
|
|
|
return wxStdWideString(buf.data(), buf.length());
|
|
}
|
|
#endif
|
|
|
|
#if (!wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY) && wxUSE_STL_BASED_WXSTRING
|
|
// wxStringImpl is std::string in the encoding we want
|
|
#define wxStringToStdStringRetType const std::string&
|
|
const std::string& ToStdString() const { return m_impl; }
|
|
#else
|
|
// wxStringImpl is either not std::string or needs conversion
|
|
#define wxStringToStdStringRetType std::string
|
|
std::string ToStdString() const
|
|
{
|
|
wxScopedCharBuffer buf(mb_str());
|
|
return std::string(buf.data(), buf.length());
|
|
}
|
|
#endif
|
|
|
|
#if wxUSE_STL
|
|
// In wxUSE_STL case we also provide implicit conversions as there is no
|
|
// ambiguity with the const char/wchar_t* ones as they are disabled in this
|
|
// build (for consistency with std::basic_string<>)
|
|
operator wxStringToStdStringRetType() const { return ToStdString(); }
|
|
operator wxStringToStdWstringRetType() const { return ToStdWstring(); }
|
|
#endif // wxUSE_STL
|
|
|
|
#undef wxStringToStdStringRetType
|
|
#undef wxStringToStdWstringRetType
|
|
|
|
#endif // wxUSE_STD_STRING
|
|
|
|
wxString Clone() const
|
|
{
|
|
// make a deep copy of the string, i.e. the returned string will have
|
|
// ref count = 1 with refcounted implementation
|
|
return wxString::FromImpl(wxStringImpl(m_impl.c_str(), m_impl.length()));
|
|
}
|
|
|
|
// first valid index position
|
|
const_iterator begin() const { return const_iterator(this, m_impl.begin()); }
|
|
iterator begin() { return iterator(this, m_impl.begin()); }
|
|
// position one after the last valid one
|
|
const_iterator end() const { return const_iterator(this, m_impl.end()); }
|
|
iterator end() { return iterator(this, m_impl.end()); }
|
|
|
|
// first element of the reversed string
|
|
const_reverse_iterator rbegin() const
|
|
{ return const_reverse_iterator(end()); }
|
|
reverse_iterator rbegin()
|
|
{ return reverse_iterator(end()); }
|
|
// one beyond the end of the reversed string
|
|
const_reverse_iterator rend() const
|
|
{ return const_reverse_iterator(begin()); }
|
|
reverse_iterator rend()
|
|
{ return reverse_iterator(begin()); }
|
|
|
|
// std::string methods:
|
|
#if wxUSE_UNICODE_UTF8
|
|
size_t length() const
|
|
{
|
|
#if wxUSE_STRING_POS_CACHE
|
|
wxCACHE_PROFILE_FIELD_INC(lentot);
|
|
|
|
Cache::Element * const cache = GetCacheElement();
|
|
|
|
if ( cache->len == npos )
|
|
{
|
|
// it's probably not worth trying to be clever and using cache->pos
|
|
// here as it's probably 0 anyhow -- you usually call length() before
|
|
// starting to index the string
|
|
cache->len = end() - begin();
|
|
}
|
|
else
|
|
{
|
|
wxCACHE_PROFILE_FIELD_INC(lenhits);
|
|
|
|
wxSTRING_CACHE_ASSERT( (int)cache->len == end() - begin() );
|
|
}
|
|
|
|
return cache->len;
|
|
#else // !wxUSE_STRING_POS_CACHE
|
|
return end() - begin();
|
|
#endif // wxUSE_STRING_POS_CACHE/!wxUSE_STRING_POS_CACHE
|
|
}
|
|
#else
|
|
size_t length() const { return m_impl.length(); }
|
|
#endif
|
|
|
|
size_type size() const { return length(); }
|
|
size_type max_size() const { return npos; }
|
|
|
|
bool empty() const { return m_impl.empty(); }
|
|
|
|
// NB: these methods don't have a well-defined meaning in UTF-8 case
|
|
size_type capacity() const { return m_impl.capacity(); }
|
|
void reserve(size_t sz) { m_impl.reserve(sz); }
|
|
|
|
void resize(size_t nSize, wxUniChar ch = wxT('\0'))
|
|
{
|
|
const size_t len = length();
|
|
if ( nSize == len)
|
|
return;
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
if ( nSize < len )
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
// we can't use wxStringImpl::resize() for truncating the string as it
|
|
// counts in bytes, not characters
|
|
erase(nSize);
|
|
return;
|
|
}
|
|
|
|
// we also can't use (presumably more efficient) resize() if we have to
|
|
// append characters taking more than one byte
|
|
if ( !ch.IsAscii() )
|
|
{
|
|
append(nSize - len, ch);
|
|
}
|
|
else // can use (presumably faster) resize() version
|
|
#endif // wxUSE_UNICODE_UTF8
|
|
{
|
|
wxSTRING_INVALIDATE_CACHED_LENGTH();
|
|
|
|
m_impl.resize(nSize, (wxStringCharType)ch);
|
|
}
|
|
}
|
|
|
|
wxString substr(size_t nStart = 0, size_t nLen = npos) const
|
|
{
|
|
size_t pos, len;
|
|
PosLenToImpl(nStart, nLen, &pos, &len);
|
|
return FromImpl(m_impl.substr(pos, len));
|
|
}
|
|
|
|
// 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() { clear(); }
|
|
// empty the string and free memory
|
|
void Clear() { clear(); }
|
|
|
|
// 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
|
|
wxUniChar at(size_t n) const
|
|
{ return wxStringOperations::DecodeChar(m_impl.begin() + PosToImpl(n)); }
|
|
wxUniChar GetChar(size_t n) const
|
|
{ return at(n); }
|
|
// read/write access
|
|
wxUniCharRef at(size_t n)
|
|
{ return *GetIterForNthChar(n); }
|
|
wxUniCharRef GetWritableChar(size_t n)
|
|
{ return at(n); }
|
|
// write access
|
|
void SetChar(size_t n, wxUniChar ch)
|
|
{ at(n) = ch; }
|
|
|
|
// get last character
|
|
wxUniChar Last() const
|
|
{
|
|
wxASSERT_MSG( !empty(), wxT("wxString: index out of bounds") );
|
|
return *rbegin();
|
|
}
|
|
|
|
// get writable last character
|
|
wxUniCharRef Last()
|
|
{
|
|
wxASSERT_MSG( !empty(), wxT("wxString: index out of bounds") );
|
|
return *rbegin();
|
|
}
|
|
|
|
/*
|
|
Note that we we must define all of the overloads below to avoid
|
|
ambiguity when using str[0].
|
|
*/
|
|
wxUniChar operator[](int n) const
|
|
{ return at(n); }
|
|
wxUniChar operator[](long n) const
|
|
{ return at(n); }
|
|
wxUniChar operator[](size_t n) const
|
|
{ return at(n); }
|
|
#ifndef wxSIZE_T_IS_UINT
|
|
wxUniChar operator[](unsigned int n) const
|
|
{ return at(n); }
|
|
#endif // size_t != unsigned int
|
|
|
|
// operator versions of GetWriteableChar()
|
|
wxUniCharRef operator[](int n)
|
|
{ return at(n); }
|
|
wxUniCharRef operator[](long n)
|
|
{ return at(n); }
|
|
wxUniCharRef operator[](size_t n)
|
|
{ return at(n); }
|
|
#ifndef wxSIZE_T_IS_UINT
|
|
wxUniCharRef operator[](unsigned int n)
|
|
{ return at(n); }
|
|
#endif // size_t != unsigned int
|
|
|
|
|
|
/*
|
|
Overview of wxString conversions, implicit and explicit:
|
|
|
|
- wxString has a std::[w]string-like c_str() method, however it does
|
|
not return a C-style string directly but instead returns wxCStrData
|
|
helper object which is convertible to either "char *" narrow string
|
|
or "wchar_t *" wide string. Usually the correct conversion will be
|
|
applied by the compiler automatically but if this doesn't happen you
|
|
need to explicitly choose one using wxCStrData::AsChar() or AsWChar()
|
|
methods or another wxString conversion function.
|
|
|
|
- One of the places where the conversion does *NOT* happen correctly is
|
|
when c_str() is passed to a vararg function such as printf() so you
|
|
must *NOT* use c_str() with them. Either use wxPrintf() (all wx
|
|
functions do handle c_str() correctly, even if they appear to be
|
|
vararg (but they're not, really)) or add an explicit AsChar() or, if
|
|
compatibility with previous wxWidgets versions is important, add a
|
|
cast to "const char *".
|
|
|
|
- In non-STL mode only, wxString is also implicitly convertible to
|
|
wxCStrData. The same warning as above applies.
|
|
|
|
- c_str() is polymorphic as it can be converted to either narrow or
|
|
wide string. If you explicitly need one or the other, choose to use
|
|
mb_str() (for narrow) or wc_str() (for wide) instead. Notice that
|
|
these functions can return either the pointer to string directly (if
|
|
this is what the string uses internally) or a temporary buffer
|
|
containing the string and convertible to it. Again, conversion will
|
|
usually be done automatically by the compiler but beware of the
|
|
vararg functions: you need an explicit cast when using them.
|
|
|
|
- There are also non-const versions of mb_str() and wc_str() called
|
|
char_str() and wchar_str(). They are only meant to be used with
|
|
non-const-correct functions and they always return buffers.
|
|
|
|
- Finally wx_str() returns whatever string representation is used by
|
|
wxString internally. It may be either a narrow or wide string
|
|
depending on wxWidgets build mode but it will always be a raw pointer
|
|
(and not a buffer).
|
|
*/
|
|
|
|
// explicit conversion to wxCStrData
|
|
wxCStrData c_str() const { return wxCStrData(this); }
|
|
wxCStrData data() const { return c_str(); }
|
|
|
|
// implicit conversion to wxCStrData
|
|
operator wxCStrData() const { return c_str(); }
|
|
|
|
// the first two operators conflict with operators for conversion to
|
|
// std::string and they must be disabled in STL build; the next one only
|
|
// makes sense if conversions to char* are also defined and not defining it
|
|
// in STL build also helps us to get more clear error messages for the code
|
|
// which relies on implicit conversion to char* in STL build
|
|
#if !wxUSE_STL
|
|
operator const char*() const { return c_str(); }
|
|
operator const wchar_t*() const { return c_str(); }
|
|
|
|
// implicit conversion to untyped pointer for compatibility with previous
|
|
// wxWidgets versions: this is the same as conversion to const char * so it
|
|
// may fail!
|
|
operator const void*() const { return c_str(); }
|
|
#endif // wxUSE_STL
|
|
|
|
// identical to c_str(), for MFC compatibility
|
|
const wxCStrData GetData() const { return c_str(); }
|
|
|
|
// explicit conversion to C string in internal representation (char*,
|
|
// wchar_t*, UTF-8-encoded char*, depending on the build):
|
|
const wxStringCharType *wx_str() const { return m_impl.c_str(); }
|
|
|
|
// conversion to *non-const* multibyte or widestring buffer; modifying
|
|
// returned buffer won't affect the string, these methods are only useful
|
|
// for passing values to const-incorrect functions
|
|
wxWritableCharBuffer char_str(const wxMBConv& conv = wxConvLibc) const
|
|
{ return mb_str(conv); }
|
|
wxWritableWCharBuffer wchar_str() const { return wc_str(); }
|
|
|
|
// conversion to the buffer of the given type T (= char or wchar_t) and
|
|
// also optionally return the buffer length
|
|
//
|
|
// this is mostly/only useful for the template functions
|
|
//
|
|
// FIXME-VC6: the second argument only exists for VC6 which doesn't support
|
|
// explicit template function selection, do not use it unless
|
|
// you must support VC6!
|
|
template <typename T>
|
|
wxCharTypeBuffer<T> tchar_str(size_t *len = NULL,
|
|
T * WXUNUSED(dummy) = NULL) const
|
|
{
|
|
#if wxUSE_UNICODE
|
|
// we need a helper dispatcher depending on type
|
|
return wxPrivate::wxStringAsBufHelper<T>::Get(*this, len);
|
|
#else // ANSI
|
|
// T can only be char in ANSI build
|
|
if ( len )
|
|
*len = length();
|
|
|
|
return wxCharTypeBuffer<T>::CreateNonOwned(wx_str(), length());
|
|
#endif // Unicode build kind
|
|
}
|
|
|
|
// 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, size_t len);
|
|
static wxString FromAscii(const char *ascii);
|
|
static wxString FromAscii(char ascii);
|
|
const wxScopedCharBuffer ToAscii() const;
|
|
#else // ANSI
|
|
static wxString FromAscii(const char *ascii) { return wxString( ascii ); }
|
|
static wxString FromAscii(const char *ascii, size_t len)
|
|
{ return wxString( ascii, len ); }
|
|
static wxString FromAscii(char ascii) { return wxString( ascii ); }
|
|
const char *ToAscii() const { return c_str(); }
|
|
#endif // Unicode/!Unicode
|
|
|
|
// also provide unsigned char overloads as signed/unsigned doesn't matter
|
|
// for 7 bit ASCII characters
|
|
static wxString FromAscii(const unsigned char *ascii)
|
|
{ return FromAscii((const char *)ascii); }
|
|
static wxString FromAscii(const unsigned char *ascii, size_t len)
|
|
{ return FromAscii((const char *)ascii, len); }
|
|
|
|
// conversion to/from UTF-8:
|
|
#if wxUSE_UNICODE_UTF8
|
|
static wxString FromUTF8Unchecked(const char *utf8)
|
|
{
|
|
if ( !utf8 )
|
|
return wxEmptyString;
|
|
|
|
wxASSERT( wxStringOperations::IsValidUtf8String(utf8) );
|
|
return FromImpl(wxStringImpl(utf8));
|
|
}
|
|
static wxString FromUTF8Unchecked(const char *utf8, size_t len)
|
|
{
|
|
if ( !utf8 )
|
|
return wxEmptyString;
|
|
if ( len == npos )
|
|
return FromUTF8Unchecked(utf8);
|
|
|
|
wxASSERT( wxStringOperations::IsValidUtf8String(utf8, len) );
|
|
return FromImpl(wxStringImpl(utf8, len));
|
|
}
|
|
|
|
static wxString FromUTF8(const char *utf8)
|
|
{
|
|
if ( !utf8 || !wxStringOperations::IsValidUtf8String(utf8) )
|
|
return "";
|
|
|
|
return FromImpl(wxStringImpl(utf8));
|
|
}
|
|
static wxString FromUTF8(const char *utf8, size_t len)
|
|
{
|
|
if ( len == npos )
|
|
return FromUTF8(utf8);
|
|
|
|
if ( !utf8 || !wxStringOperations::IsValidUtf8String(utf8, len) )
|
|
return "";
|
|
|
|
return FromImpl(wxStringImpl(utf8, len));
|
|
}
|
|
|
|
const wxScopedCharBuffer utf8_str() const
|
|
{ return wxCharBuffer::CreateNonOwned(m_impl.c_str(), m_impl.length()); }
|
|
|
|
// this function exists in UTF-8 build only and returns the length of the
|
|
// internal UTF-8 representation
|
|
size_t utf8_length() const { return m_impl.length(); }
|
|
#elif wxUSE_UNICODE_WCHAR
|
|
static wxString FromUTF8(const char *utf8, size_t len = npos)
|
|
{ return wxString(utf8, wxMBConvUTF8(), len); }
|
|
static wxString FromUTF8Unchecked(const char *utf8, size_t len = npos)
|
|
{
|
|
const wxString s(utf8, wxMBConvUTF8(), len);
|
|
wxASSERT_MSG( !utf8 || !*utf8 || !s.empty(),
|
|
"string must be valid UTF-8" );
|
|
return s;
|
|
}
|
|
const wxScopedCharBuffer utf8_str() const { return mb_str(wxMBConvUTF8()); }
|
|
#else // ANSI
|
|
static wxString FromUTF8(const char *utf8)
|
|
{ return wxString(wxMBConvUTF8().cMB2WC(utf8)); }
|
|
static wxString FromUTF8(const char *utf8, size_t len)
|
|
{
|
|
size_t wlen;
|
|
wxScopedWCharBuffer buf(wxMBConvUTF8().cMB2WC(utf8, len == npos ? wxNO_LEN : len, &wlen));
|
|
return wxString(buf.data(), wlen);
|
|
}
|
|
static wxString FromUTF8Unchecked(const char *utf8, size_t len = npos)
|
|
{
|
|
size_t wlen;
|
|
wxScopedWCharBuffer buf
|
|
(
|
|
wxMBConvUTF8().cMB2WC
|
|
(
|
|
utf8,
|
|
len == npos ? wxNO_LEN : len,
|
|
&wlen
|
|
)
|
|
);
|
|
wxASSERT_MSG( !utf8 || !*utf8 || wlen,
|
|
"string must be valid UTF-8" );
|
|
|
|
return wxString(buf.data(), wlen);
|
|
}
|
|
const wxScopedCharBuffer utf8_str() const
|
|
{ return wxMBConvUTF8().cWC2MB(wc_str()); }
|
|
#endif
|
|
|
|
const wxScopedCharBuffer ToUTF8() const { return utf8_str(); }
|
|
|
|
// functions for storing binary data in wxString:
|
|
#if wxUSE_UNICODE
|
|
static wxString From8BitData(const char *data, size_t len)
|
|
{ return wxString(data, wxConvISO8859_1, len); }
|
|
// version for NUL-terminated data:
|
|
static wxString From8BitData(const char *data)
|
|
{ return wxString(data, wxConvISO8859_1); }
|
|
const wxScopedCharBuffer To8BitData() const
|
|
{ return mb_str(wxConvISO8859_1); }
|
|
#else // ANSI
|
|
static wxString From8BitData(const char *data, size_t len)
|
|
{ return wxString(data, len); }
|
|
// version for NUL-terminated data:
|
|
static wxString From8BitData(const char *data)
|
|
{ return wxString(data); }
|
|
const wxScopedCharBuffer To8BitData() const
|
|
{ return wxScopedCharBuffer::CreateNonOwned(wx_str(), length()); }
|
|
#endif // Unicode/ANSI
|
|
|
|
// 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
|
|
|
|
// this is an optimization: even though using mb_str(wxConvLibc) does the
|
|
// same thing (i.e. returns pointer to internal representation as locale is
|
|
// always an UTF-8 one) in wxUSE_UTF8_LOCALE_ONLY case, we can avoid the
|
|
// extra checks and the temporary buffer construction by providing a
|
|
// separate mb_str() overload
|
|
#if wxUSE_UTF8_LOCALE_ONLY
|
|
const char* mb_str() const { return wx_str(); }
|
|
const wxScopedCharBuffer mb_str(const wxMBConv& conv) const
|
|
{
|
|
return AsCharBuf(conv);
|
|
}
|
|
#else // !wxUSE_UTF8_LOCALE_ONLY
|
|
const wxScopedCharBuffer mb_str(const wxMBConv& conv = wxConvLibc) const
|
|
{
|
|
return AsCharBuf(conv);
|
|
}
|
|
#endif // wxUSE_UTF8_LOCALE_ONLY/!wxUSE_UTF8_LOCALE_ONLY
|
|
|
|
const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
|
|
|
|
#if wxUSE_UNICODE_WCHAR
|
|
const wchar_t* wc_str() const { return wx_str(); }
|
|
#elif wxUSE_UNICODE_UTF8
|
|
const wxScopedWCharBuffer wc_str() const
|
|
{ return AsWCharBuf(wxMBConvStrictUTF8()); }
|
|
#endif
|
|
// for compatibility with !wxUSE_UNICODE version
|
|
const wxWX2WCbuf wc_str(const wxMBConv& WXUNUSED(conv)) const
|
|
{ return wc_str(); }
|
|
|
|
#if wxMBFILES
|
|
const wxScopedCharBuffer fn_str() const { return mb_str(wxConvFile); }
|
|
#else // !wxMBFILES
|
|
const wxWX2WCbuf fn_str() const { return wc_str(); }
|
|
#endif // wxMBFILES/!wxMBFILES
|
|
|
|
#else // ANSI
|
|
const char* mb_str() const { return wx_str(); }
|
|
|
|
// for compatibility with wxUSE_UNICODE version
|
|
const char* mb_str(const wxMBConv& WXUNUSED(conv)) const { return wx_str(); }
|
|
|
|
const wxWX2MBbuf mbc_str() const { return mb_str(); }
|
|
|
|
const wxScopedWCharBuffer wc_str(const wxMBConv& conv = wxConvLibc) const
|
|
{ return AsWCharBuf(conv); }
|
|
|
|
const wxScopedCharBuffer fn_str() const
|
|
{ return wxConvFile.cWC2WX( wc_str( wxConvLibc ) ); }
|
|
#endif // Unicode/ANSI
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
const wxScopedWCharBuffer t_str() const { return wc_str(); }
|
|
#elif wxUSE_UNICODE_WCHAR
|
|
const wchar_t* t_str() const { return wx_str(); }
|
|
#else
|
|
const char* t_str() const { return wx_str(); }
|
|
#endif
|
|
|
|
|
|
// overloaded assignment
|
|
// from another wxString
|
|
wxString& operator=(const wxString& stringSrc)
|
|
{
|
|
if ( this != &stringSrc )
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl = stringSrc.m_impl;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& operator=(const wxCStrData& cstr)
|
|
{ return *this = cstr.AsString(); }
|
|
// from a character
|
|
wxString& operator=(wxUniChar ch)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
if ( !ch.IsAscii() )
|
|
m_impl = wxStringOperations::EncodeChar(ch);
|
|
else
|
|
#endif // wxUSE_UNICODE_UTF8
|
|
m_impl = (wxStringCharType)ch;
|
|
return *this;
|
|
}
|
|
|
|
wxString& operator=(wxUniCharRef ch)
|
|
{ return operator=((wxUniChar)ch); }
|
|
wxString& operator=(char ch)
|
|
{ return operator=(wxUniChar(ch)); }
|
|
wxString& operator=(unsigned char ch)
|
|
{ return operator=(wxUniChar(ch)); }
|
|
wxString& operator=(wchar_t ch)
|
|
{ return operator=(wxUniChar(ch)); }
|
|
// from a C string - STL probably will crash on NULL,
|
|
// so we need to compensate in that case
|
|
#if wxUSE_STL_BASED_WXSTRING
|
|
wxString& operator=(const char *psz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
if ( psz )
|
|
m_impl = ImplStr(psz);
|
|
else
|
|
clear();
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& operator=(const wchar_t *pwz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
if ( pwz )
|
|
m_impl = ImplStr(pwz);
|
|
else
|
|
clear();
|
|
|
|
return *this;
|
|
}
|
|
#else // !wxUSE_STL_BASED_WXSTRING
|
|
wxString& operator=(const char *psz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl = ImplStr(psz);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& operator=(const wchar_t *pwz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl = ImplStr(pwz);
|
|
|
|
return *this;
|
|
}
|
|
#endif // wxUSE_STL_BASED_WXSTRING/!wxUSE_STL_BASED_WXSTRING
|
|
|
|
wxString& operator=(const unsigned char *psz)
|
|
{ return operator=((const char*)psz); }
|
|
|
|
// from wxScopedWCharBuffer
|
|
wxString& operator=(const wxScopedWCharBuffer& s)
|
|
{ return assign(s); }
|
|
// from wxScopedCharBuffer
|
|
wxString& operator=(const wxScopedCharBuffer& s)
|
|
{ return assign(s); }
|
|
|
|
// 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 WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
|
|
wxASSERT_MSG( s.IsValid(),
|
|
wxT("did you forget to call UngetWriteBuf()?") );
|
|
#endif
|
|
|
|
append(s);
|
|
return *this;
|
|
}
|
|
// string += C string
|
|
wxString& operator<<(const char *psz)
|
|
{ append(psz); return *this; }
|
|
wxString& operator<<(const wchar_t *pwz)
|
|
{ append(pwz); return *this; }
|
|
wxString& operator<<(const wxCStrData& psz)
|
|
{ append(psz.AsString()); return *this; }
|
|
// string += char
|
|
wxString& operator<<(wxUniChar ch) { append(1, ch); return *this; }
|
|
wxString& operator<<(wxUniCharRef ch) { append(1, ch); return *this; }
|
|
wxString& operator<<(char ch) { append(1, ch); return *this; }
|
|
wxString& operator<<(unsigned char ch) { append(1, ch); return *this; }
|
|
wxString& operator<<(wchar_t ch) { append(1, ch); return *this; }
|
|
|
|
// string += buffer (i.e. from wxGetString)
|
|
wxString& operator<<(const wxScopedWCharBuffer& s)
|
|
{ return append(s); }
|
|
wxString& operator<<(const wxScopedCharBuffer& s)
|
|
{ return append(s); }
|
|
|
|
// 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 char* psz)
|
|
{ append(psz); return *this; }
|
|
wxString& Append(const wchar_t* pwz)
|
|
{ append(pwz); return *this; }
|
|
wxString& Append(const wxCStrData& psz)
|
|
{ append(psz); return *this; }
|
|
wxString& Append(const wxScopedCharBuffer& psz)
|
|
{ append(psz); return *this; }
|
|
wxString& Append(const wxScopedWCharBuffer& psz)
|
|
{ append(psz); return *this; }
|
|
wxString& Append(const char* psz, size_t nLen)
|
|
{ append(psz, nLen); return *this; }
|
|
wxString& Append(const wchar_t* pwz, size_t nLen)
|
|
{ append(pwz, nLen); return *this; }
|
|
wxString& Append(const wxCStrData& psz, size_t nLen)
|
|
{ append(psz, nLen); return *this; }
|
|
wxString& Append(const wxScopedCharBuffer& psz, size_t nLen)
|
|
{ append(psz, nLen); return *this; }
|
|
wxString& Append(const wxScopedWCharBuffer& psz, size_t nLen)
|
|
{ append(psz, nLen); return *this; }
|
|
// append count copies of given character
|
|
wxString& Append(wxUniChar ch, size_t count = 1u)
|
|
{ append(count, ch); return *this; }
|
|
wxString& Append(wxUniCharRef ch, size_t count = 1u)
|
|
{ append(count, ch); return *this; }
|
|
wxString& Append(char ch, size_t count = 1u)
|
|
{ append(count, ch); return *this; }
|
|
wxString& Append(unsigned char ch, size_t count = 1u)
|
|
{ append(count, ch); return *this; }
|
|
wxString& Append(wchar_t ch, size_t count = 1u)
|
|
{ append(count, ch); 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, wxUniChar ch);
|
|
// char with a string
|
|
friend wxString WXDLLIMPEXP_BASE operator+(wxUniChar ch, const wxString& string);
|
|
// string with C string
|
|
friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string,
|
|
const char *psz);
|
|
friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string,
|
|
const wchar_t *pwz);
|
|
// C string with string
|
|
friend wxString WXDLLIMPEXP_BASE operator+(const char *psz,
|
|
const wxString& string);
|
|
friend wxString WXDLLIMPEXP_BASE operator+(const wchar_t *pwz,
|
|
const wxString& string);
|
|
|
|
// stream-like functions
|
|
// insert an int into string
|
|
wxString& operator<<(int i)
|
|
{ return (*this) << Format(wxT("%d"), i); }
|
|
// insert an unsigned int into string
|
|
wxString& operator<<(unsigned int ui)
|
|
{ return (*this) << Format(wxT("%u"), ui); }
|
|
// insert a long into string
|
|
wxString& operator<<(long l)
|
|
{ return (*this) << Format(wxT("%ld"), l); }
|
|
// insert an unsigned long into string
|
|
wxString& operator<<(unsigned long ul)
|
|
{ return (*this) << Format(wxT("%lu"), ul); }
|
|
#ifdef wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
|
|
// insert a long long if they exist and aren't longs
|
|
wxString& operator<<(wxLongLong_t ll)
|
|
{
|
|
return (*this) << Format("%" wxLongLongFmtSpec "d", ll);
|
|
}
|
|
// insert an unsigned long long
|
|
wxString& operator<<(wxULongLong_t ull)
|
|
{
|
|
return (*this) << Format("%" wxLongLongFmtSpec "u" , ull);
|
|
}
|
|
#endif // wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
|
|
// insert a float into string
|
|
wxString& operator<<(float f)
|
|
{ return (*this) << Format(wxT("%f"), f); }
|
|
// insert a double into string
|
|
wxString& operator<<(double d)
|
|
{ return (*this) << Format(wxT("%g"), d); }
|
|
|
|
// string comparison
|
|
// case-sensitive comparison (returns a value < 0, = 0 or > 0)
|
|
int Cmp(const char *psz) const
|
|
{ return compare(psz); }
|
|
int Cmp(const wchar_t *pwz) const
|
|
{ return compare(pwz); }
|
|
int Cmp(const wxString& s) const
|
|
{ return compare(s); }
|
|
int Cmp(const wxCStrData& s) const
|
|
{ return compare(s); }
|
|
int Cmp(const wxScopedCharBuffer& s) const
|
|
{ return compare(s); }
|
|
int Cmp(const wxScopedWCharBuffer& s) const
|
|
{ return compare(s); }
|
|
// same as Cmp() but not case-sensitive
|
|
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 wxString& str, bool compareWithCase = true) const
|
|
{
|
|
#if !wxUSE_UNICODE_UTF8
|
|
// in UTF-8 build, length() is O(n) and doing this would be _slower_
|
|
if ( length() != str.length() )
|
|
return false;
|
|
#endif
|
|
return (compareWithCase ? Cmp(str) : CmpNoCase(str)) == 0;
|
|
}
|
|
bool IsSameAs(const char *str, bool compareWithCase = true) const
|
|
{ return (compareWithCase ? Cmp(str) : CmpNoCase(str)) == 0; }
|
|
bool IsSameAs(const wchar_t *str, bool compareWithCase = true) const
|
|
{ return (compareWithCase ? Cmp(str) : CmpNoCase(str)) == 0; }
|
|
|
|
bool IsSameAs(const wxCStrData& str, bool compareWithCase = true) const
|
|
{ return IsSameAs(str.AsString(), compareWithCase); }
|
|
bool IsSameAs(const wxScopedCharBuffer& str, bool compareWithCase = true) const
|
|
{ return IsSameAs(str.data(), compareWithCase); }
|
|
bool IsSameAs(const wxScopedWCharBuffer& str, bool compareWithCase = true) const
|
|
{ return IsSameAs(str.data(), compareWithCase); }
|
|
// comparison with a single character: returns true if equal
|
|
bool IsSameAs(wxUniChar c, bool compareWithCase = true) const;
|
|
// FIXME-UTF8: remove these overloads
|
|
bool IsSameAs(wxUniCharRef c, bool compareWithCase = true) const
|
|
{ return IsSameAs(wxUniChar(c), compareWithCase); }
|
|
bool IsSameAs(char c, bool compareWithCase = true) const
|
|
{ return IsSameAs(wxUniChar(c), compareWithCase); }
|
|
bool IsSameAs(unsigned char c, bool compareWithCase = true) const
|
|
{ return IsSameAs(wxUniChar(c), compareWithCase); }
|
|
bool IsSameAs(wchar_t c, bool compareWithCase = true) const
|
|
{ return IsSameAs(wxUniChar(c), compareWithCase); }
|
|
bool IsSameAs(int c, bool compareWithCase = true) const
|
|
{ return IsSameAs(wxUniChar(c), compareWithCase); }
|
|
|
|
// 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 wxString& 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 wxString& 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 occurrence of ch
|
|
// (returns the whole string if ch not found) and also put everything
|
|
// following the first occurrence of ch into rest if it's non-NULL
|
|
wxString BeforeFirst(wxUniChar ch, wxString *rest = NULL) const;
|
|
// get all characters before the last occurrence of ch
|
|
// (returns empty string if ch not found) and also put everything
|
|
// following the last occurrence of ch into rest if it's non-NULL
|
|
wxString BeforeLast(wxUniChar ch, wxString *rest = NULL) const;
|
|
// get all characters after the first occurrence of ch
|
|
// (returns empty string if ch not found)
|
|
wxString AfterFirst(wxUniChar ch) const;
|
|
// get all characters after the last occurrence of ch
|
|
// (returns the whole string if ch not found)
|
|
wxString AfterLast(wxUniChar ch) const;
|
|
|
|
// for compatibility only, use more explicitly named functions above
|
|
wxString Before(wxUniChar ch) const { return BeforeLast(ch); }
|
|
wxString After(wxUniChar 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
|
|
wxString Upper() const { return wxString(*this).MakeUpper(); }
|
|
// 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 { return wxString(*this).MakeLower(); }
|
|
// convert the first character to the upper case and the rest to the
|
|
// lower one, return the modified string itself
|
|
wxString& MakeCapitalized();
|
|
// convert the first character to the upper case and the rest to the
|
|
// lower one, return the copy of the string
|
|
wxString Capitalize() const { return wxString(*this).MakeCapitalized(); }
|
|
|
|
// 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, wxUniChar chPad = wxT(' '), bool bFromRight = true);
|
|
|
|
// searching and replacing
|
|
// searching (return starting index, or -1 if not found)
|
|
int Find(wxUniChar ch, bool bFromEnd = false) const; // like strchr/strrchr
|
|
int Find(wxUniCharRef ch, bool bFromEnd = false) const
|
|
{ return Find(wxUniChar(ch), bFromEnd); }
|
|
int Find(char ch, bool bFromEnd = false) const
|
|
{ return Find(wxUniChar(ch), bFromEnd); }
|
|
int Find(unsigned char ch, bool bFromEnd = false) const
|
|
{ return Find(wxUniChar(ch), bFromEnd); }
|
|
int Find(wchar_t ch, bool bFromEnd = false) const
|
|
{ return Find(wxUniChar(ch), bFromEnd); }
|
|
// searching (return starting index, or -1 if not found)
|
|
int Find(const wxString& sub) const // like strstr
|
|
{
|
|
size_type idx = find(sub);
|
|
return (idx == npos) ? wxNOT_FOUND : (int)idx;
|
|
}
|
|
int Find(const char *sub) const // like strstr
|
|
{
|
|
size_type idx = find(sub);
|
|
return (idx == npos) ? wxNOT_FOUND : (int)idx;
|
|
}
|
|
int Find(const wchar_t *sub) const // like strstr
|
|
{
|
|
size_type idx = find(sub);
|
|
return (idx == npos) ? wxNOT_FOUND : (int)idx;
|
|
}
|
|
|
|
int Find(const wxCStrData& sub) const
|
|
{ return Find(sub.AsString()); }
|
|
int Find(const wxScopedCharBuffer& sub) const
|
|
{ return Find(sub.data()); }
|
|
int Find(const wxScopedWCharBuffer& sub) const
|
|
{ return Find(sub.data()); }
|
|
|
|
// replace first (or all of bReplaceAll) occurrences of substring with
|
|
// another string, returns the number of replacements made
|
|
size_t Replace(const wxString& strOld,
|
|
const wxString& strNew,
|
|
bool bReplaceAll = true);
|
|
|
|
// check if the string contents matches a mask containing '*' and '?'
|
|
bool Matches(const wxString& mask) 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 wxLongLong
|
|
#if defined(wxLongLong_t)
|
|
bool ToLongLong(wxLongLong_t *val, int base = 10) const;
|
|
// convert to wxULongLong
|
|
bool ToULongLong(wxULongLong_t *val, int base = 10) const;
|
|
#endif // wxLongLong_t
|
|
// convert to a double
|
|
bool ToDouble(double *val) const;
|
|
|
|
// conversions to numbers using C locale
|
|
// convert to a signed integer
|
|
bool ToCLong(long *val, int base = 10) const;
|
|
// convert to an unsigned integer
|
|
bool ToCULong(unsigned long *val, int base = 10) const;
|
|
// convert to a double
|
|
bool ToCDouble(double *val) const;
|
|
|
|
// create a string representing the given floating point number with the
|
|
// default (like %g) or fixed (if precision >=0) precision
|
|
// in the current locale
|
|
static wxString FromDouble(double val, int precision = -1);
|
|
// in C locale
|
|
static wxString FromCDouble(double val, int precision = -1);
|
|
|
|
#ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN
|
|
// 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 wxString& format, ...);
|
|
WX_DEFINE_VARARG_FUNC(int, Printf, 1, (const wxFormatString&),
|
|
DoPrintfWchar, DoPrintfUtf8)
|
|
#ifdef __WATCOMC__
|
|
// workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
|
|
WX_VARARG_WATCOM_WORKAROUND(int, Printf, 1, (const wxString&),
|
|
(wxFormatString(f1)));
|
|
WX_VARARG_WATCOM_WORKAROUND(int, Printf, 1, (const wxCStrData&),
|
|
(wxFormatString(f1)));
|
|
WX_VARARG_WATCOM_WORKAROUND(int, Printf, 1, (const char*),
|
|
(wxFormatString(f1)));
|
|
WX_VARARG_WATCOM_WORKAROUND(int, Printf, 1, (const wchar_t*),
|
|
(wxFormatString(f1)));
|
|
#endif
|
|
#endif // !wxNEEDS_WXSTRING_PRINTF_MIXIN
|
|
// as vprintf(), returns the number of characters written or < 0 on error
|
|
int PrintfV(const wxString& format, va_list argptr);
|
|
|
|
#ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN
|
|
// returns the string containing the result of Printf() to it
|
|
// static wxString Format(const wxString& format, ...) WX_ATTRIBUTE_PRINTF_1;
|
|
WX_DEFINE_VARARG_FUNC(static wxString, Format, 1, (const wxFormatString&),
|
|
DoFormatWchar, DoFormatUtf8)
|
|
#ifdef __WATCOMC__
|
|
// workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
|
|
WX_VARARG_WATCOM_WORKAROUND(static wxString, Format, 1, (const wxString&),
|
|
(wxFormatString(f1)));
|
|
WX_VARARG_WATCOM_WORKAROUND(static wxString, Format, 1, (const wxCStrData&),
|
|
(wxFormatString(f1)));
|
|
WX_VARARG_WATCOM_WORKAROUND(static wxString, Format, 1, (const char*),
|
|
(wxFormatString(f1)));
|
|
WX_VARARG_WATCOM_WORKAROUND(static wxString, Format, 1, (const wchar_t*),
|
|
(wxFormatString(f1)));
|
|
#endif
|
|
#endif
|
|
// the same as above, but takes a va_list
|
|
static wxString FormatV(const wxString& format, 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; }
|
|
// minimize the string's memory
|
|
// only works if the data of this string is not shared
|
|
bool Shrink();
|
|
#if WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
|
|
// These are deprecated, use wxStringBuffer or wxStringBufferLength instead
|
|
//
|
|
// get writable buffer of at least nLen bytes. Unget() *must* be called
|
|
// a.s.a.p. to put string back in a reasonable state!
|
|
wxDEPRECATED( wxStringCharType *GetWriteBuf(size_t nLen) );
|
|
// call this immediately after GetWriteBuf() has been used
|
|
wxDEPRECATED( void UngetWriteBuf() );
|
|
wxDEPRECATED( void UngetWriteBuf(size_t nLen) );
|
|
#endif // WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING && wxUSE_UNICODE_UTF8
|
|
|
|
// 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};
|
|
|
|
#ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN
|
|
// use Printf()
|
|
// (take 'this' into account in attribute parameter count)
|
|
// int sprintf(const wxString& format, ...) WX_ATTRIBUTE_PRINTF_2;
|
|
WX_DEFINE_VARARG_FUNC(int, sprintf, 1, (const wxFormatString&),
|
|
DoPrintfWchar, DoPrintfUtf8)
|
|
#ifdef __WATCOMC__
|
|
// workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
|
|
WX_VARARG_WATCOM_WORKAROUND(int, sprintf, 1, (const wxString&),
|
|
(wxFormatString(f1)));
|
|
WX_VARARG_WATCOM_WORKAROUND(int, sprintf, 1, (const wxCStrData&),
|
|
(wxFormatString(f1)));
|
|
WX_VARARG_WATCOM_WORKAROUND(int, sprintf, 1, (const char*),
|
|
(wxFormatString(f1)));
|
|
WX_VARARG_WATCOM_WORKAROUND(int, sprintf, 1, (const wchar_t*),
|
|
(wxFormatString(f1)));
|
|
#endif
|
|
#endif // wxNEEDS_WXSTRING_PRINTF_MIXIN
|
|
|
|
// use Cmp()
|
|
int CompareTo(const wxChar* psz, caseCompare cmp = exact) const
|
|
{ return cmp == exact ? Cmp(psz) : CmpNoCase(psz); }
|
|
|
|
// use length()
|
|
size_t Length() const { return length(); }
|
|
// Count the number of characters
|
|
int Freq(wxUniChar 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(wxUniChar 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( wxUniChar ch ) const { return Find(ch); }
|
|
int First( wxUniCharRef ch ) const { return Find(ch); }
|
|
int First( char ch ) const { return Find(ch); }
|
|
int First( unsigned char ch ) const { return Find(ch); }
|
|
int First( wchar_t ch ) const { return Find(ch); }
|
|
int First( const wxString& str ) const { return Find(str); }
|
|
int Last( wxUniChar 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)
|
|
{ assign(str, nPos, nLen); }
|
|
// take all characters from first to last
|
|
wxString(const_iterator first, const_iterator last)
|
|
: m_impl(first.impl(), last.impl()) { }
|
|
#if WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
|
|
// the 2 overloads below are for compatibility with the existing code using
|
|
// pointers instead of iterators
|
|
wxString(const char *first, const char *last)
|
|
{
|
|
SubstrBufFromMB str(ImplStr(first, last - first));
|
|
m_impl.assign(str.data, str.len);
|
|
}
|
|
wxString(const wchar_t *first, const wchar_t *last)
|
|
{
|
|
SubstrBufFromWC str(ImplStr(first, last - first));
|
|
m_impl.assign(str.data, str.len);
|
|
}
|
|
// and this one is needed to compile code adding offsets to c_str() result
|
|
wxString(const wxCStrData& first, const wxCStrData& last)
|
|
: m_impl(CreateConstIterator(first).impl(),
|
|
CreateConstIterator(last).impl())
|
|
{
|
|
wxASSERT_MSG( first.m_str == last.m_str,
|
|
wxT("pointers must be into the same string") );
|
|
}
|
|
#endif // WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
|
|
|
|
// lib.string.modifiers
|
|
// append elements str[pos], ..., str[pos+n]
|
|
wxString& append(const wxString& str, size_t pos, size_t n)
|
|
{
|
|
wxSTRING_UPDATE_CACHED_LENGTH(n);
|
|
|
|
size_t from, len;
|
|
str.PosLenToImpl(pos, n, &from, &len);
|
|
m_impl.append(str.m_impl, from, len);
|
|
return *this;
|
|
}
|
|
// append a string
|
|
wxString& append(const wxString& str)
|
|
{
|
|
wxSTRING_UPDATE_CACHED_LENGTH(str.length());
|
|
|
|
m_impl.append(str.m_impl);
|
|
return *this;
|
|
}
|
|
|
|
// append first n (or all if n == npos) characters of sz
|
|
wxString& append(const char *sz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHED_LENGTH();
|
|
|
|
m_impl.append(ImplStr(sz));
|
|
return *this;
|
|
}
|
|
|
|
wxString& append(const wchar_t *sz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHED_LENGTH();
|
|
|
|
m_impl.append(ImplStr(sz));
|
|
return *this;
|
|
}
|
|
|
|
wxString& append(const char *sz, size_t n)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHED_LENGTH();
|
|
|
|
SubstrBufFromMB str(ImplStr(sz, n));
|
|
m_impl.append(str.data, str.len);
|
|
return *this;
|
|
}
|
|
wxString& append(const wchar_t *sz, size_t n)
|
|
{
|
|
wxSTRING_UPDATE_CACHED_LENGTH(n);
|
|
|
|
SubstrBufFromWC str(ImplStr(sz, n));
|
|
m_impl.append(str.data, str.len);
|
|
return *this;
|
|
}
|
|
|
|
wxString& append(const wxCStrData& str)
|
|
{ return append(str.AsString()); }
|
|
wxString& append(const wxScopedCharBuffer& str)
|
|
{ return append(str.data(), str.length()); }
|
|
wxString& append(const wxScopedWCharBuffer& str)
|
|
{ return append(str.data(), str.length()); }
|
|
wxString& append(const wxCStrData& str, size_t n)
|
|
{ return append(str.AsString(), 0, n); }
|
|
wxString& append(const wxScopedCharBuffer& str, size_t n)
|
|
{ return append(str.data(), n); }
|
|
wxString& append(const wxScopedWCharBuffer& str, size_t n)
|
|
{ return append(str.data(), n); }
|
|
|
|
// append n copies of ch
|
|
wxString& append(size_t n, wxUniChar ch)
|
|
{
|
|
#if wxUSE_UNICODE_UTF8
|
|
if ( !ch.IsAscii() )
|
|
{
|
|
wxSTRING_INVALIDATE_CACHED_LENGTH();
|
|
|
|
m_impl.append(wxStringOperations::EncodeNChars(n, ch));
|
|
}
|
|
else // ASCII
|
|
#endif
|
|
{
|
|
wxSTRING_UPDATE_CACHED_LENGTH(n);
|
|
|
|
m_impl.append(n, (wxStringCharType)ch);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& append(size_t n, wxUniCharRef ch)
|
|
{ return append(n, wxUniChar(ch)); }
|
|
wxString& append(size_t n, char ch)
|
|
{ return append(n, wxUniChar(ch)); }
|
|
wxString& append(size_t n, unsigned char ch)
|
|
{ return append(n, wxUniChar(ch)); }
|
|
wxString& append(size_t n, wchar_t ch)
|
|
{ return append(n, wxUniChar(ch)); }
|
|
|
|
// append from first to last
|
|
wxString& append(const_iterator first, const_iterator last)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHED_LENGTH();
|
|
|
|
m_impl.append(first.impl(), last.impl());
|
|
return *this;
|
|
}
|
|
#if WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
|
|
wxString& append(const char *first, const char *last)
|
|
{ return append(first, last - first); }
|
|
wxString& append(const wchar_t *first, const wchar_t *last)
|
|
{ return append(first, last - first); }
|
|
wxString& append(const wxCStrData& first, const wxCStrData& last)
|
|
{ return append(CreateConstIterator(first), CreateConstIterator(last)); }
|
|
#endif // WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
|
|
|
|
// same as `this_string = str'
|
|
wxString& assign(const wxString& str)
|
|
{
|
|
wxSTRING_SET_CACHED_LENGTH(str.length());
|
|
|
|
m_impl = str.m_impl;
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& assign(const wxString& str, size_t len)
|
|
{
|
|
wxSTRING_SET_CACHED_LENGTH(len);
|
|
|
|
m_impl.assign(str.m_impl, 0, str.LenToImpl(len));
|
|
|
|
return *this;
|
|
}
|
|
|
|
// same as ` = str[pos..pos + n]
|
|
wxString& assign(const wxString& str, size_t pos, size_t n)
|
|
{
|
|
size_t from, len;
|
|
str.PosLenToImpl(pos, n, &from, &len);
|
|
m_impl.assign(str.m_impl, from, len);
|
|
|
|
// it's important to call this after PosLenToImpl() above in case str is
|
|
// the same string as this one
|
|
wxSTRING_SET_CACHED_LENGTH(n);
|
|
|
|
return *this;
|
|
}
|
|
|
|
// same as `= first n (or all if n == npos) characters of sz'
|
|
wxString& assign(const char *sz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl.assign(ImplStr(sz));
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& assign(const wchar_t *sz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl.assign(ImplStr(sz));
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& assign(const char *sz, size_t n)
|
|
{
|
|
wxSTRING_SET_CACHED_LENGTH(n);
|
|
|
|
SubstrBufFromMB str(ImplStr(sz, n));
|
|
m_impl.assign(str.data, str.len);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& assign(const wchar_t *sz, size_t n)
|
|
{
|
|
wxSTRING_SET_CACHED_LENGTH(n);
|
|
|
|
SubstrBufFromWC str(ImplStr(sz, n));
|
|
m_impl.assign(str.data, str.len);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& assign(const wxCStrData& str)
|
|
{ return assign(str.AsString()); }
|
|
wxString& assign(const wxScopedCharBuffer& str)
|
|
{ return assign(str.data(), str.length()); }
|
|
wxString& assign(const wxScopedWCharBuffer& str)
|
|
{ return assign(str.data(), str.length()); }
|
|
wxString& assign(const wxCStrData& str, size_t len)
|
|
{ return assign(str.AsString(), len); }
|
|
wxString& assign(const wxScopedCharBuffer& str, size_t len)
|
|
{ return assign(str.data(), len); }
|
|
wxString& assign(const wxScopedWCharBuffer& str, size_t len)
|
|
{ return assign(str.data(), len); }
|
|
|
|
// same as `= n copies of ch'
|
|
wxString& assign(size_t n, wxUniChar ch)
|
|
{
|
|
wxSTRING_SET_CACHED_LENGTH(n);
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
if ( !ch.IsAscii() )
|
|
m_impl.assign(wxStringOperations::EncodeNChars(n, ch));
|
|
else
|
|
#endif
|
|
m_impl.assign(n, (wxStringCharType)ch);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& assign(size_t n, wxUniCharRef ch)
|
|
{ return assign(n, wxUniChar(ch)); }
|
|
wxString& assign(size_t n, char ch)
|
|
{ return assign(n, wxUniChar(ch)); }
|
|
wxString& assign(size_t n, unsigned char ch)
|
|
{ return assign(n, wxUniChar(ch)); }
|
|
wxString& assign(size_t n, wchar_t ch)
|
|
{ return assign(n, wxUniChar(ch)); }
|
|
|
|
// assign from first to last
|
|
wxString& assign(const_iterator first, const_iterator last)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl.assign(first.impl(), last.impl());
|
|
|
|
return *this;
|
|
}
|
|
#if WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
|
|
wxString& assign(const char *first, const char *last)
|
|
{ return assign(first, last - first); }
|
|
wxString& assign(const wchar_t *first, const wchar_t *last)
|
|
{ return assign(first, last - first); }
|
|
wxString& assign(const wxCStrData& first, const wxCStrData& last)
|
|
{ return assign(CreateConstIterator(first), CreateConstIterator(last)); }
|
|
#endif // WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
|
|
|
|
// string comparison
|
|
int compare(const wxString& str) const;
|
|
int compare(const char* sz) const;
|
|
int compare(const wchar_t* sz) const;
|
|
int compare(const wxCStrData& str) const
|
|
{ return compare(str.AsString()); }
|
|
int compare(const wxScopedCharBuffer& str) const
|
|
{ return compare(str.data()); }
|
|
int compare(const wxScopedWCharBuffer& str) const
|
|
{ return compare(str.data()); }
|
|
// comparison with a substring
|
|
int compare(size_t nStart, size_t nLen, const wxString& str) const;
|
|
// comparison of 2 substrings
|
|
int compare(size_t nStart, size_t nLen,
|
|
const wxString& str, size_t nStart2, size_t nLen2) const;
|
|
// substring comparison with first nCount characters of sz
|
|
int compare(size_t nStart, size_t nLen,
|
|
const char* sz, size_t nCount = npos) const;
|
|
int compare(size_t nStart, size_t nLen,
|
|
const wchar_t* sz, size_t nCount = npos) const;
|
|
|
|
// insert another string
|
|
wxString& insert(size_t nPos, const wxString& str)
|
|
{ insert(GetIterForNthChar(nPos), str.begin(), str.end()); return *this; }
|
|
// insert n chars of str starting at nStart (in str)
|
|
wxString& insert(size_t nPos, const wxString& str, size_t nStart, size_t n)
|
|
{
|
|
wxSTRING_UPDATE_CACHED_LENGTH(n);
|
|
|
|
size_t from, len;
|
|
str.PosLenToImpl(nStart, n, &from, &len);
|
|
m_impl.insert(PosToImpl(nPos), str.m_impl, from, len);
|
|
|
|
return *this;
|
|
}
|
|
|
|
// insert first n (or all if n == npos) characters of sz
|
|
wxString& insert(size_t nPos, const char *sz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl.insert(PosToImpl(nPos), ImplStr(sz));
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& insert(size_t nPos, const wchar_t *sz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl.insert(PosToImpl(nPos), ImplStr(sz)); return *this;
|
|
}
|
|
|
|
wxString& insert(size_t nPos, const char *sz, size_t n)
|
|
{
|
|
wxSTRING_UPDATE_CACHED_LENGTH(n);
|
|
|
|
SubstrBufFromMB str(ImplStr(sz, n));
|
|
m_impl.insert(PosToImpl(nPos), str.data, str.len);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& insert(size_t nPos, const wchar_t *sz, size_t n)
|
|
{
|
|
wxSTRING_UPDATE_CACHED_LENGTH(n);
|
|
|
|
SubstrBufFromWC str(ImplStr(sz, n));
|
|
m_impl.insert(PosToImpl(nPos), str.data, str.len);
|
|
|
|
return *this;
|
|
}
|
|
|
|
// insert n copies of ch
|
|
wxString& insert(size_t nPos, size_t n, wxUniChar ch)
|
|
{
|
|
wxSTRING_UPDATE_CACHED_LENGTH(n);
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
if ( !ch.IsAscii() )
|
|
m_impl.insert(PosToImpl(nPos), wxStringOperations::EncodeNChars(n, ch));
|
|
else
|
|
#endif
|
|
m_impl.insert(PosToImpl(nPos), n, (wxStringCharType)ch);
|
|
return *this;
|
|
}
|
|
|
|
iterator insert(iterator it, wxUniChar ch)
|
|
{
|
|
wxSTRING_UPDATE_CACHED_LENGTH(1);
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
if ( !ch.IsAscii() )
|
|
{
|
|
size_t pos = IterToImplPos(it);
|
|
m_impl.insert(pos, wxStringOperations::EncodeChar(ch));
|
|
return iterator(this, m_impl.begin() + pos);
|
|
}
|
|
else
|
|
#endif
|
|
return iterator(this, m_impl.insert(it.impl(), (wxStringCharType)ch));
|
|
}
|
|
|
|
void insert(iterator it, const_iterator first, const_iterator last)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl.insert(it.impl(), first.impl(), last.impl());
|
|
}
|
|
|
|
#if WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
|
|
void insert(iterator it, const char *first, const char *last)
|
|
{ insert(it - begin(), first, last - first); }
|
|
void insert(iterator it, const wchar_t *first, const wchar_t *last)
|
|
{ insert(it - begin(), first, last - first); }
|
|
void insert(iterator it, const wxCStrData& first, const wxCStrData& last)
|
|
{ insert(it, CreateConstIterator(first), CreateConstIterator(last)); }
|
|
#endif // WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
|
|
|
|
void insert(iterator it, size_type n, wxUniChar ch)
|
|
{
|
|
wxSTRING_UPDATE_CACHED_LENGTH(n);
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
if ( !ch.IsAscii() )
|
|
m_impl.insert(IterToImplPos(it), wxStringOperations::EncodeNChars(n, ch));
|
|
else
|
|
#endif
|
|
m_impl.insert(it.impl(), n, (wxStringCharType)ch);
|
|
}
|
|
|
|
// delete characters from nStart to nStart + nLen
|
|
wxString& erase(size_type pos = 0, size_type n = npos)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
size_t from, len;
|
|
PosLenToImpl(pos, n, &from, &len);
|
|
m_impl.erase(from, len);
|
|
|
|
return *this;
|
|
}
|
|
|
|
// delete characters from first up to last
|
|
iterator erase(iterator first, iterator last)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
return iterator(this, m_impl.erase(first.impl(), last.impl()));
|
|
}
|
|
|
|
iterator erase(iterator first)
|
|
{
|
|
wxSTRING_UPDATE_CACHED_LENGTH(-1);
|
|
|
|
return iterator(this, m_impl.erase(first.impl()));
|
|
}
|
|
|
|
#ifdef wxSTRING_BASE_HASNT_CLEAR
|
|
void clear() { erase(); }
|
|
#else
|
|
void clear()
|
|
{
|
|
wxSTRING_SET_CACHED_LENGTH(0);
|
|
|
|
m_impl.clear();
|
|
}
|
|
#endif
|
|
|
|
// replaces the substring of length nLen starting at nStart
|
|
wxString& replace(size_t nStart, size_t nLen, const char* sz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
size_t from, len;
|
|
PosLenToImpl(nStart, nLen, &from, &len);
|
|
m_impl.replace(from, len, ImplStr(sz));
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& replace(size_t nStart, size_t nLen, const wchar_t* sz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
size_t from, len;
|
|
PosLenToImpl(nStart, nLen, &from, &len);
|
|
m_impl.replace(from, len, ImplStr(sz));
|
|
|
|
return *this;
|
|
}
|
|
|
|
// replaces the substring of length nLen starting at nStart
|
|
wxString& replace(size_t nStart, size_t nLen, const wxString& str)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
size_t from, len;
|
|
PosLenToImpl(nStart, nLen, &from, &len);
|
|
m_impl.replace(from, len, str.m_impl);
|
|
|
|
return *this;
|
|
}
|
|
|
|
// replaces the substring with nCount copies of ch
|
|
wxString& replace(size_t nStart, size_t nLen, size_t nCount, wxUniChar ch)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
size_t from, len;
|
|
PosLenToImpl(nStart, nLen, &from, &len);
|
|
#if wxUSE_UNICODE_UTF8
|
|
if ( !ch.IsAscii() )
|
|
m_impl.replace(from, len, wxStringOperations::EncodeNChars(nCount, ch));
|
|
else
|
|
#endif
|
|
m_impl.replace(from, len, nCount, (wxStringCharType)ch);
|
|
|
|
return *this;
|
|
}
|
|
|
|
// replaces a substring with another substring
|
|
wxString& replace(size_t nStart, size_t nLen,
|
|
const wxString& str, size_t nStart2, size_t nLen2)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
size_t from, len;
|
|
PosLenToImpl(nStart, nLen, &from, &len);
|
|
|
|
size_t from2, len2;
|
|
str.PosLenToImpl(nStart2, nLen2, &from2, &len2);
|
|
|
|
m_impl.replace(from, len, str.m_impl, from2, len2);
|
|
|
|
return *this;
|
|
}
|
|
|
|
// replaces the substring with first nCount chars of sz
|
|
wxString& replace(size_t nStart, size_t nLen,
|
|
const char* sz, size_t nCount)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
size_t from, len;
|
|
PosLenToImpl(nStart, nLen, &from, &len);
|
|
|
|
SubstrBufFromMB str(ImplStr(sz, nCount));
|
|
|
|
m_impl.replace(from, len, str.data, str.len);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& replace(size_t nStart, size_t nLen,
|
|
const wchar_t* sz, size_t nCount)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
size_t from, len;
|
|
PosLenToImpl(nStart, nLen, &from, &len);
|
|
|
|
SubstrBufFromWC str(ImplStr(sz, nCount));
|
|
|
|
m_impl.replace(from, len, str.data, str.len);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& replace(size_t nStart, size_t nLen,
|
|
const wxString& s, size_t nCount)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
size_t from, len;
|
|
PosLenToImpl(nStart, nLen, &from, &len);
|
|
m_impl.replace(from, len, s.m_impl.c_str(), s.LenToImpl(nCount));
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& replace(iterator first, iterator last, const char* s)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl.replace(first.impl(), last.impl(), ImplStr(s));
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& replace(iterator first, iterator last, const wchar_t* s)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl.replace(first.impl(), last.impl(), ImplStr(s));
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& replace(iterator first, iterator last, const char* s, size_type n)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
SubstrBufFromMB str(ImplStr(s, n));
|
|
m_impl.replace(first.impl(), last.impl(), str.data, str.len);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& replace(iterator first, iterator last, const wchar_t* s, size_type n)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
SubstrBufFromWC str(ImplStr(s, n));
|
|
m_impl.replace(first.impl(), last.impl(), str.data, str.len);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& replace(iterator first, iterator last, const wxString& s)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl.replace(first.impl(), last.impl(), s.m_impl);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& replace(iterator first, iterator last, size_type n, wxUniChar ch)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
if ( !ch.IsAscii() )
|
|
m_impl.replace(first.impl(), last.impl(),
|
|
wxStringOperations::EncodeNChars(n, ch));
|
|
else
|
|
#endif
|
|
m_impl.replace(first.impl(), last.impl(), n, (wxStringCharType)ch);
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& replace(iterator first, iterator last,
|
|
const_iterator first1, const_iterator last1)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl.replace(first.impl(), last.impl(), first1.impl(), last1.impl());
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxString& replace(iterator first, iterator last,
|
|
const char *first1, const char *last1)
|
|
{ replace(first, last, first1, last1 - first1); return *this; }
|
|
wxString& replace(iterator first, iterator last,
|
|
const wchar_t *first1, const wchar_t *last1)
|
|
{ replace(first, last, first1, last1 - first1); return *this; }
|
|
|
|
// swap two strings
|
|
void swap(wxString& str)
|
|
{
|
|
#if wxUSE_STRING_POS_CACHE
|
|
// we modify not only this string but also the other one directly so we
|
|
// need to invalidate cache for both of them (we could also try to
|
|
// exchange their cache entries but it seems unlikely to be worth it)
|
|
InvalidateCache();
|
|
str.InvalidateCache();
|
|
#endif // wxUSE_STRING_POS_CACHE
|
|
|
|
m_impl.swap(str.m_impl);
|
|
}
|
|
|
|
// find a substring
|
|
size_t find(const wxString& str, size_t nStart = 0) const
|
|
{ return PosFromImpl(m_impl.find(str.m_impl, PosToImpl(nStart))); }
|
|
|
|
// find first n characters of sz
|
|
size_t find(const char* sz, size_t nStart = 0, size_t n = npos) const
|
|
{
|
|
SubstrBufFromMB str(ImplStr(sz, n));
|
|
return PosFromImpl(m_impl.find(str.data, PosToImpl(nStart), str.len));
|
|
}
|
|
size_t find(const wchar_t* sz, size_t nStart = 0, size_t n = npos) const
|
|
{
|
|
SubstrBufFromWC str(ImplStr(sz, n));
|
|
return PosFromImpl(m_impl.find(str.data, PosToImpl(nStart), str.len));
|
|
}
|
|
size_t find(const wxScopedCharBuffer& s, size_t nStart = 0, size_t n = npos) const
|
|
{ return find(s.data(), nStart, n); }
|
|
size_t find(const wxScopedWCharBuffer& s, size_t nStart = 0, size_t n = npos) const
|
|
{ return find(s.data(), nStart, n); }
|
|
size_t find(const wxCStrData& s, size_t nStart = 0, size_t n = npos) const
|
|
{ return find(s.AsWChar(), nStart, n); }
|
|
|
|
// find the first occurrence of character ch after nStart
|
|
size_t find(wxUniChar ch, size_t nStart = 0) const
|
|
{
|
|
#if wxUSE_UNICODE_UTF8
|
|
if ( !ch.IsAscii() )
|
|
return PosFromImpl(m_impl.find(wxStringOperations::EncodeChar(ch),
|
|
PosToImpl(nStart)));
|
|
else
|
|
#endif
|
|
return PosFromImpl(m_impl.find((wxStringCharType)ch,
|
|
PosToImpl(nStart)));
|
|
|
|
}
|
|
size_t find(wxUniCharRef ch, size_t nStart = 0) const
|
|
{ return find(wxUniChar(ch), nStart); }
|
|
size_t find(char ch, size_t nStart = 0) const
|
|
{ return find(wxUniChar(ch), nStart); }
|
|
size_t find(unsigned char ch, size_t nStart = 0) const
|
|
{ return find(wxUniChar(ch), nStart); }
|
|
size_t find(wchar_t ch, size_t nStart = 0) const
|
|
{ return find(wxUniChar(ch), nStart); }
|
|
|
|
// rfind() family is exactly like find() but works right to left
|
|
|
|
// as find, but from the end
|
|
size_t rfind(const wxString& str, size_t nStart = npos) const
|
|
{ return PosFromImpl(m_impl.rfind(str.m_impl, PosToImpl(nStart))); }
|
|
|
|
// as find, but from the end
|
|
size_t rfind(const char* sz, size_t nStart = npos, size_t n = npos) const
|
|
{
|
|
SubstrBufFromMB str(ImplStr(sz, n));
|
|
return PosFromImpl(m_impl.rfind(str.data, PosToImpl(nStart), str.len));
|
|
}
|
|
size_t rfind(const wchar_t* sz, size_t nStart = npos, size_t n = npos) const
|
|
{
|
|
SubstrBufFromWC str(ImplStr(sz, n));
|
|
return PosFromImpl(m_impl.rfind(str.data, PosToImpl(nStart), str.len));
|
|
}
|
|
size_t rfind(const wxScopedCharBuffer& s, size_t nStart = npos, size_t n = npos) const
|
|
{ return rfind(s.data(), nStart, n); }
|
|
size_t rfind(const wxScopedWCharBuffer& s, size_t nStart = npos, size_t n = npos) const
|
|
{ return rfind(s.data(), nStart, n); }
|
|
size_t rfind(const wxCStrData& s, size_t nStart = npos, size_t n = npos) const
|
|
{ return rfind(s.AsWChar(), nStart, n); }
|
|
// as find, but from the end
|
|
size_t rfind(wxUniChar ch, size_t nStart = npos) const
|
|
{
|
|
#if wxUSE_UNICODE_UTF8
|
|
if ( !ch.IsAscii() )
|
|
return PosFromImpl(m_impl.rfind(wxStringOperations::EncodeChar(ch),
|
|
PosToImpl(nStart)));
|
|
else
|
|
#endif
|
|
return PosFromImpl(m_impl.rfind((wxStringCharType)ch,
|
|
PosToImpl(nStart)));
|
|
}
|
|
size_t rfind(wxUniCharRef ch, size_t nStart = npos) const
|
|
{ return rfind(wxUniChar(ch), nStart); }
|
|
size_t rfind(char ch, size_t nStart = npos) const
|
|
{ return rfind(wxUniChar(ch), nStart); }
|
|
size_t rfind(unsigned char ch, size_t nStart = npos) const
|
|
{ return rfind(wxUniChar(ch), nStart); }
|
|
size_t rfind(wchar_t ch, size_t nStart = npos) const
|
|
{ return rfind(wxUniChar(ch), nStart); }
|
|
|
|
// find first/last occurrence of any character (not) in the set:
|
|
#if wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
|
|
// FIXME-UTF8: this is not entirely correct, because it doesn't work if
|
|
// sizeof(wchar_t)==2 and surrogates are present in the string;
|
|
// should we care? Probably not.
|
|
size_t find_first_of(const wxString& str, size_t nStart = 0) const
|
|
{ return m_impl.find_first_of(str.m_impl, nStart); }
|
|
size_t find_first_of(const char* sz, size_t nStart = 0) const
|
|
{ return m_impl.find_first_of(ImplStr(sz), nStart); }
|
|
size_t find_first_of(const wchar_t* sz, size_t nStart = 0) const
|
|
{ return m_impl.find_first_of(ImplStr(sz), nStart); }
|
|
size_t find_first_of(const char* sz, size_t nStart, size_t n) const
|
|
{ return m_impl.find_first_of(ImplStr(sz), nStart, n); }
|
|
size_t find_first_of(const wchar_t* sz, size_t nStart, size_t n) const
|
|
{ return m_impl.find_first_of(ImplStr(sz), nStart, n); }
|
|
size_t find_first_of(wxUniChar c, size_t nStart = 0) const
|
|
{ return m_impl.find_first_of((wxChar)c, nStart); }
|
|
|
|
size_t find_last_of(const wxString& str, size_t nStart = npos) const
|
|
{ return m_impl.find_last_of(str.m_impl, nStart); }
|
|
size_t find_last_of(const char* sz, size_t nStart = npos) const
|
|
{ return m_impl.find_last_of(ImplStr(sz), nStart); }
|
|
size_t find_last_of(const wchar_t* sz, size_t nStart = npos) const
|
|
{ return m_impl.find_last_of(ImplStr(sz), nStart); }
|
|
size_t find_last_of(const char* sz, size_t nStart, size_t n) const
|
|
{ return m_impl.find_last_of(ImplStr(sz), nStart, n); }
|
|
size_t find_last_of(const wchar_t* sz, size_t nStart, size_t n) const
|
|
{ return m_impl.find_last_of(ImplStr(sz), nStart, n); }
|
|
size_t find_last_of(wxUniChar c, size_t nStart = npos) const
|
|
{ return m_impl.find_last_of((wxChar)c, nStart); }
|
|
|
|
size_t find_first_not_of(const wxString& str, size_t nStart = 0) const
|
|
{ return m_impl.find_first_not_of(str.m_impl, nStart); }
|
|
size_t find_first_not_of(const char* sz, size_t nStart = 0) const
|
|
{ return m_impl.find_first_not_of(ImplStr(sz), nStart); }
|
|
size_t find_first_not_of(const wchar_t* sz, size_t nStart = 0) const
|
|
{ return m_impl.find_first_not_of(ImplStr(sz), nStart); }
|
|
size_t find_first_not_of(const char* sz, size_t nStart, size_t n) const
|
|
{ return m_impl.find_first_not_of(ImplStr(sz), nStart, n); }
|
|
size_t find_first_not_of(const wchar_t* sz, size_t nStart, size_t n) const
|
|
{ return m_impl.find_first_not_of(ImplStr(sz), nStart, n); }
|
|
size_t find_first_not_of(wxUniChar c, size_t nStart = 0) const
|
|
{ return m_impl.find_first_not_of((wxChar)c, nStart); }
|
|
|
|
size_t find_last_not_of(const wxString& str, size_t nStart = npos) const
|
|
{ return m_impl.find_last_not_of(str.m_impl, nStart); }
|
|
size_t find_last_not_of(const char* sz, size_t nStart = npos) const
|
|
{ return m_impl.find_last_not_of(ImplStr(sz), nStart); }
|
|
size_t find_last_not_of(const wchar_t* sz, size_t nStart = npos) const
|
|
{ return m_impl.find_last_not_of(ImplStr(sz), nStart); }
|
|
size_t find_last_not_of(const char* sz, size_t nStart, size_t n) const
|
|
{ return m_impl.find_last_not_of(ImplStr(sz), nStart, n); }
|
|
size_t find_last_not_of(const wchar_t* sz, size_t nStart, size_t n) const
|
|
{ return m_impl.find_last_not_of(ImplStr(sz), nStart, n); }
|
|
size_t find_last_not_of(wxUniChar c, size_t nStart = npos) const
|
|
{ return m_impl.find_last_not_of((wxChar)c, nStart); }
|
|
#else
|
|
// we can't use std::string implementation in UTF-8 build, because the
|
|
// character sets would be interpreted wrongly:
|
|
|
|
// as strpbrk() but starts at nStart, returns npos if not found
|
|
size_t find_first_of(const wxString& str, size_t nStart = 0) const
|
|
#if wxUSE_UNICODE // FIXME-UTF8: temporary
|
|
{ return find_first_of(str.wc_str(), nStart); }
|
|
#else
|
|
{ return find_first_of(str.mb_str(), nStart); }
|
|
#endif
|
|
// same as above
|
|
size_t find_first_of(const char* sz, size_t nStart = 0) const;
|
|
size_t find_first_of(const wchar_t* sz, size_t nStart = 0) const;
|
|
size_t find_first_of(const char* sz, size_t nStart, size_t n) const;
|
|
size_t find_first_of(const wchar_t* sz, size_t nStart, size_t n) const;
|
|
// same as find(char, size_t)
|
|
size_t find_first_of(wxUniChar 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 wxString& str, size_t nStart = npos) const
|
|
#if wxUSE_UNICODE // FIXME-UTF8: temporary
|
|
{ return find_last_of(str.wc_str(), nStart); }
|
|
#else
|
|
{ return find_last_of(str.mb_str(), nStart); }
|
|
#endif
|
|
// same as above
|
|
size_t find_last_of (const char* sz, size_t nStart = npos) const;
|
|
size_t find_last_of (const wchar_t* sz, size_t nStart = npos) const;
|
|
size_t find_last_of(const char* sz, size_t nStart, size_t n) const;
|
|
size_t find_last_of(const wchar_t* sz, size_t nStart, size_t n) const;
|
|
// same as above
|
|
size_t find_last_of(wxUniChar c, size_t nStart = npos) const
|
|
{ return rfind(c, nStart); }
|
|
|
|
// find first/last occurrence of any character not in the set
|
|
|
|
// as strspn() (starting from nStart), returns npos on failure
|
|
size_t find_first_not_of(const wxString& str, size_t nStart = 0) const
|
|
#if wxUSE_UNICODE // FIXME-UTF8: temporary
|
|
{ return find_first_not_of(str.wc_str(), nStart); }
|
|
#else
|
|
{ return find_first_not_of(str.mb_str(), nStart); }
|
|
#endif
|
|
// same as above
|
|
size_t find_first_not_of(const char* sz, size_t nStart = 0) const;
|
|
size_t find_first_not_of(const wchar_t* sz, size_t nStart = 0) const;
|
|
size_t find_first_not_of(const char* sz, size_t nStart, size_t n) const;
|
|
size_t find_first_not_of(const wchar_t* sz, size_t nStart, size_t n) const;
|
|
// same as above
|
|
size_t find_first_not_of(wxUniChar ch, size_t nStart = 0) const;
|
|
// as strcspn()
|
|
size_t find_last_not_of(const wxString& str, size_t nStart = npos) const
|
|
#if wxUSE_UNICODE // FIXME-UTF8: temporary
|
|
{ return find_last_not_of(str.wc_str(), nStart); }
|
|
#else
|
|
{ return find_last_not_of(str.mb_str(), nStart); }
|
|
#endif
|
|
// same as above
|
|
size_t find_last_not_of(const char* sz, size_t nStart = npos) const;
|
|
size_t find_last_not_of(const wchar_t* sz, size_t nStart = npos) const;
|
|
size_t find_last_not_of(const char* sz, size_t nStart, size_t n) const;
|
|
size_t find_last_not_of(const wchar_t* sz, size_t nStart, size_t n) const;
|
|
// same as above
|
|
size_t find_last_not_of(wxUniChar ch, size_t nStart = npos) const;
|
|
#endif // wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8 or not
|
|
|
|
// provide char/wchar_t/wxUniCharRef overloads for char-finding functions
|
|
// above to resolve ambiguities:
|
|
size_t find_first_of(wxUniCharRef ch, size_t nStart = 0) const
|
|
{ return find_first_of(wxUniChar(ch), nStart); }
|
|
size_t find_first_of(char ch, size_t nStart = 0) const
|
|
{ return find_first_of(wxUniChar(ch), nStart); }
|
|
size_t find_first_of(unsigned char ch, size_t nStart = 0) const
|
|
{ return find_first_of(wxUniChar(ch), nStart); }
|
|
size_t find_first_of(wchar_t ch, size_t nStart = 0) const
|
|
{ return find_first_of(wxUniChar(ch), nStart); }
|
|
size_t find_last_of(wxUniCharRef ch, size_t nStart = npos) const
|
|
{ return find_last_of(wxUniChar(ch), nStart); }
|
|
size_t find_last_of(char ch, size_t nStart = npos) const
|
|
{ return find_last_of(wxUniChar(ch), nStart); }
|
|
size_t find_last_of(unsigned char ch, size_t nStart = npos) const
|
|
{ return find_last_of(wxUniChar(ch), nStart); }
|
|
size_t find_last_of(wchar_t ch, size_t nStart = npos) const
|
|
{ return find_last_of(wxUniChar(ch), nStart); }
|
|
size_t find_first_not_of(wxUniCharRef ch, size_t nStart = 0) const
|
|
{ return find_first_not_of(wxUniChar(ch), nStart); }
|
|
size_t find_first_not_of(char ch, size_t nStart = 0) const
|
|
{ return find_first_not_of(wxUniChar(ch), nStart); }
|
|
size_t find_first_not_of(unsigned char ch, size_t nStart = 0) const
|
|
{ return find_first_not_of(wxUniChar(ch), nStart); }
|
|
size_t find_first_not_of(wchar_t ch, size_t nStart = 0) const
|
|
{ return find_first_not_of(wxUniChar(ch), nStart); }
|
|
size_t find_last_not_of(wxUniCharRef ch, size_t nStart = npos) const
|
|
{ return find_last_not_of(wxUniChar(ch), nStart); }
|
|
size_t find_last_not_of(char ch, size_t nStart = npos) const
|
|
{ return find_last_not_of(wxUniChar(ch), nStart); }
|
|
size_t find_last_not_of(unsigned char ch, size_t nStart = npos) const
|
|
{ return find_last_not_of(wxUniChar(ch), nStart); }
|
|
size_t find_last_not_of(wchar_t ch, size_t nStart = npos) const
|
|
{ return find_last_not_of(wxUniChar(ch), nStart); }
|
|
|
|
// and additional overloads for the versions taking strings:
|
|
size_t find_first_of(const wxCStrData& sz, size_t nStart = 0) const
|
|
{ return find_first_of(sz.AsString(), nStart); }
|
|
size_t find_first_of(const wxScopedCharBuffer& sz, size_t nStart = 0) const
|
|
{ return find_first_of(sz.data(), nStart); }
|
|
size_t find_first_of(const wxScopedWCharBuffer& sz, size_t nStart = 0) const
|
|
{ return find_first_of(sz.data(), nStart); }
|
|
size_t find_first_of(const wxCStrData& sz, size_t nStart, size_t n) const
|
|
{ return find_first_of(sz.AsWChar(), nStart, n); }
|
|
size_t find_first_of(const wxScopedCharBuffer& sz, size_t nStart, size_t n) const
|
|
{ return find_first_of(sz.data(), nStart, n); }
|
|
size_t find_first_of(const wxScopedWCharBuffer& sz, size_t nStart, size_t n) const
|
|
{ return find_first_of(sz.data(), nStart, n); }
|
|
|
|
size_t find_last_of(const wxCStrData& sz, size_t nStart = 0) const
|
|
{ return find_last_of(sz.AsString(), nStart); }
|
|
size_t find_last_of(const wxScopedCharBuffer& sz, size_t nStart = 0) const
|
|
{ return find_last_of(sz.data(), nStart); }
|
|
size_t find_last_of(const wxScopedWCharBuffer& sz, size_t nStart = 0) const
|
|
{ return find_last_of(sz.data(), nStart); }
|
|
size_t find_last_of(const wxCStrData& sz, size_t nStart, size_t n) const
|
|
{ return find_last_of(sz.AsWChar(), nStart, n); }
|
|
size_t find_last_of(const wxScopedCharBuffer& sz, size_t nStart, size_t n) const
|
|
{ return find_last_of(sz.data(), nStart, n); }
|
|
size_t find_last_of(const wxScopedWCharBuffer& sz, size_t nStart, size_t n) const
|
|
{ return find_last_of(sz.data(), nStart, n); }
|
|
|
|
size_t find_first_not_of(const wxCStrData& sz, size_t nStart = 0) const
|
|
{ return find_first_not_of(sz.AsString(), nStart); }
|
|
size_t find_first_not_of(const wxScopedCharBuffer& sz, size_t nStart = 0) const
|
|
{ return find_first_not_of(sz.data(), nStart); }
|
|
size_t find_first_not_of(const wxScopedWCharBuffer& sz, size_t nStart = 0) const
|
|
{ return find_first_not_of(sz.data(), nStart); }
|
|
size_t find_first_not_of(const wxCStrData& sz, size_t nStart, size_t n) const
|
|
{ return find_first_not_of(sz.AsWChar(), nStart, n); }
|
|
size_t find_first_not_of(const wxScopedCharBuffer& sz, size_t nStart, size_t n) const
|
|
{ return find_first_not_of(sz.data(), nStart, n); }
|
|
size_t find_first_not_of(const wxScopedWCharBuffer& sz, size_t nStart, size_t n) const
|
|
{ return find_first_not_of(sz.data(), nStart, n); }
|
|
|
|
size_t find_last_not_of(const wxCStrData& sz, size_t nStart = 0) const
|
|
{ return find_last_not_of(sz.AsString(), nStart); }
|
|
size_t find_last_not_of(const wxScopedCharBuffer& sz, size_t nStart = 0) const
|
|
{ return find_last_not_of(sz.data(), nStart); }
|
|
size_t find_last_not_of(const wxScopedWCharBuffer& sz, size_t nStart = 0) const
|
|
{ return find_last_not_of(sz.data(), nStart); }
|
|
size_t find_last_not_of(const wxCStrData& sz, size_t nStart, size_t n) const
|
|
{ return find_last_not_of(sz.AsWChar(), nStart, n); }
|
|
size_t find_last_not_of(const wxScopedCharBuffer& sz, size_t nStart, size_t n) const
|
|
{ return find_last_not_of(sz.data(), nStart, n); }
|
|
size_t find_last_not_of(const wxScopedWCharBuffer& sz, size_t nStart, size_t n) const
|
|
{ return find_last_not_of(sz.data(), nStart, n); }
|
|
|
|
// string += string
|
|
wxString& operator+=(const wxString& s)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHED_LENGTH();
|
|
|
|
m_impl += s.m_impl;
|
|
return *this;
|
|
}
|
|
// string += C string
|
|
wxString& operator+=(const char *psz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHED_LENGTH();
|
|
|
|
m_impl += ImplStr(psz);
|
|
return *this;
|
|
}
|
|
wxString& operator+=(const wchar_t *pwz)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHED_LENGTH();
|
|
|
|
m_impl += ImplStr(pwz);
|
|
return *this;
|
|
}
|
|
wxString& operator+=(const wxCStrData& s)
|
|
{
|
|
wxSTRING_INVALIDATE_CACHED_LENGTH();
|
|
|
|
m_impl += s.AsString().m_impl;
|
|
return *this;
|
|
}
|
|
wxString& operator+=(const wxScopedCharBuffer& s)
|
|
{ return append(s); }
|
|
wxString& operator+=(const wxScopedWCharBuffer& s)
|
|
{ return append(s); }
|
|
// string += char
|
|
wxString& operator+=(wxUniChar ch)
|
|
{
|
|
wxSTRING_UPDATE_CACHED_LENGTH(1);
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
if ( !ch.IsAscii() )
|
|
m_impl += wxStringOperations::EncodeChar(ch);
|
|
else
|
|
#endif
|
|
m_impl += (wxStringCharType)ch;
|
|
return *this;
|
|
}
|
|
wxString& operator+=(wxUniCharRef ch) { return *this += wxUniChar(ch); }
|
|
wxString& operator+=(int ch) { return *this += wxUniChar(ch); }
|
|
wxString& operator+=(char ch) { return *this += wxUniChar(ch); }
|
|
wxString& operator+=(unsigned char ch) { return *this += wxUniChar(ch); }
|
|
wxString& operator+=(wchar_t ch) { return *this += wxUniChar(ch); }
|
|
|
|
private:
|
|
#if !wxUSE_STL_BASED_WXSTRING
|
|
// helpers for wxStringBuffer and wxStringBufferLength
|
|
wxStringCharType *DoGetWriteBuf(size_t nLen)
|
|
{
|
|
return m_impl.DoGetWriteBuf(nLen);
|
|
}
|
|
|
|
void DoUngetWriteBuf()
|
|
{
|
|
wxSTRING_INVALIDATE_CACHE();
|
|
|
|
m_impl.DoUngetWriteBuf();
|
|
}
|
|
|
|
void DoUngetWriteBuf(size_t nLen)
|
|
{
|
|
wxSTRING_SET_CACHED_LENGTH(nLen);
|
|
|
|
m_impl.DoUngetWriteBuf(nLen);
|
|
}
|
|
#endif // !wxUSE_STL_BASED_WXSTRING
|
|
|
|
#ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN
|
|
#if !wxUSE_UTF8_LOCALE_ONLY
|
|
int DoPrintfWchar(const wxChar *format, ...);
|
|
static wxString DoFormatWchar(const wxChar *format, ...);
|
|
#endif
|
|
#if wxUSE_UNICODE_UTF8
|
|
int DoPrintfUtf8(const char *format, ...);
|
|
static wxString DoFormatUtf8(const char *format, ...);
|
|
#endif
|
|
#endif
|
|
|
|
#if !wxUSE_STL_BASED_WXSTRING
|
|
// check string's data validity
|
|
bool IsValid() const { return m_impl.GetStringData()->IsValid(); }
|
|
#endif
|
|
|
|
private:
|
|
wxStringImpl m_impl;
|
|
|
|
// buffers for compatibility conversion from (char*)c_str() and
|
|
// (wchar_t*)c_str(): the pointers returned by these functions should remain
|
|
// valid until the string itself is modified for compatibility with the
|
|
// existing code and consistency with std::string::c_str() so returning a
|
|
// temporary buffer won't do and we need to cache the conversion results
|
|
|
|
// TODO-UTF8: benchmark various approaches to keeping compatibility buffers
|
|
template<typename T>
|
|
struct ConvertedBuffer
|
|
{
|
|
// notice that there is no need to initialize m_len here as it's unused
|
|
// as long as m_str is NULL
|
|
ConvertedBuffer() : m_str(NULL) {}
|
|
~ConvertedBuffer()
|
|
{ free(m_str); }
|
|
|
|
bool Extend(size_t len)
|
|
{
|
|
// add extra 1 for the trailing NUL
|
|
void * const str = realloc(m_str, sizeof(T)*(len + 1));
|
|
if ( !str )
|
|
return false;
|
|
|
|
m_str = static_cast<T *>(str);
|
|
m_len = len;
|
|
|
|
return true;
|
|
}
|
|
|
|
const wxScopedCharTypeBuffer<T> AsScopedBuffer() const
|
|
{
|
|
return wxScopedCharTypeBuffer<T>::CreateNonOwned(m_str, m_len);
|
|
}
|
|
|
|
T *m_str; // pointer to the string data
|
|
size_t m_len; // length, not size, i.e. in chars and without last NUL
|
|
};
|
|
|
|
|
|
#if wxUSE_UNICODE
|
|
// common mb_str() and wxCStrData::AsChar() helper: performs the conversion
|
|
// and returns either m_convertedToChar.m_str (in which case its m_len is
|
|
// also updated) or NULL if it failed
|
|
//
|
|
// there is an important exception: in wxUSE_UNICODE_UTF8 build if conv is a
|
|
// UTF-8 one, we return m_impl.c_str() directly, without doing any conversion
|
|
// as optimization and so the caller needs to check for this before using
|
|
// m_convertedToChar
|
|
//
|
|
// NB: AsChar() returns char* in any build, unlike mb_str()
|
|
const char *AsChar(const wxMBConv& conv) const;
|
|
|
|
// mb_str() implementation helper
|
|
wxScopedCharBuffer AsCharBuf(const wxMBConv& conv) const
|
|
{
|
|
#if wxUSE_UNICODE_UTF8
|
|
// avoid conversion if we can
|
|
if ( conv.IsUTF8() )
|
|
{
|
|
return wxScopedCharBuffer::CreateNonOwned(m_impl.c_str(),
|
|
m_impl.length());
|
|
}
|
|
#endif // wxUSE_UNICODE_UTF8
|
|
|
|
// call this solely in order to fill in m_convertedToChar as AsChar()
|
|
// updates it as a side effect: this is a bit ugly but it's a completely
|
|
// internal function so the users of this class shouldn't care or know
|
|
// about it and doing it like this, i.e. having a separate AsChar(),
|
|
// allows us to avoid the creation and destruction of a temporary buffer
|
|
// when using wxCStrData without duplicating any code
|
|
if ( !AsChar(conv) )
|
|
{
|
|
// although it would be probably more correct to return NULL buffer
|
|
// from here if the conversion fails, a lot of existing code doesn't
|
|
// expect mb_str() (or wc_str()) to ever return NULL so return an
|
|
// empty string otherwise to avoid crashes in it
|
|
//
|
|
// also, some existing code does check for the conversion success and
|
|
// so asserting here would be bad too -- even if it does mean that
|
|
// silently losing data is possible for badly written code
|
|
return wxScopedCharBuffer::CreateNonOwned("", 0);
|
|
}
|
|
|
|
return m_convertedToChar.AsScopedBuffer();
|
|
}
|
|
|
|
ConvertedBuffer<char> m_convertedToChar;
|
|
#endif // !wxUSE_UNICODE
|
|
|
|
#if !wxUSE_UNICODE_WCHAR
|
|
// common wc_str() and wxCStrData::AsWChar() helper for both UTF-8 and ANSI
|
|
// builds: converts the string contents into m_convertedToWChar and returns
|
|
// NULL if the conversion failed (this can only happen in ANSI build)
|
|
//
|
|
// NB: AsWChar() returns wchar_t* in any build, unlike wc_str()
|
|
const wchar_t *AsWChar(const wxMBConv& conv) const;
|
|
|
|
// wc_str() implementation helper
|
|
wxScopedWCharBuffer AsWCharBuf(const wxMBConv& conv) const
|
|
{
|
|
if ( !AsWChar(conv) )
|
|
return wxScopedWCharBuffer::CreateNonOwned(L"", 0);
|
|
|
|
return m_convertedToWChar.AsScopedBuffer();
|
|
}
|
|
|
|
ConvertedBuffer<wchar_t> m_convertedToWChar;
|
|
#endif // !wxUSE_UNICODE_WCHAR
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
// FIXME-UTF8: (try to) move this elsewhere (TLS) or solve differently
|
|
// assigning to character pointer to by wxString::iterator may
|
|
// change the underlying wxStringImpl iterator, so we have to
|
|
// keep track of all iterators and update them as necessary:
|
|
struct wxStringIteratorNodeHead
|
|
{
|
|
wxStringIteratorNodeHead() : ptr(NULL) {}
|
|
wxStringIteratorNode *ptr;
|
|
|
|
// copying is disallowed as it would result in more than one pointer into
|
|
// the same linked list
|
|
wxDECLARE_NO_COPY_CLASS(wxStringIteratorNodeHead);
|
|
};
|
|
|
|
wxStringIteratorNodeHead m_iterators;
|
|
|
|
friend class WXDLLIMPEXP_FWD_BASE wxStringIteratorNode;
|
|
friend class WXDLLIMPEXP_FWD_BASE wxUniCharRef;
|
|
#endif // wxUSE_UNICODE_UTF8
|
|
|
|
friend class WXDLLIMPEXP_FWD_BASE wxCStrData;
|
|
friend class wxStringInternalBuffer;
|
|
friend class wxStringInternalBufferLength;
|
|
};
|
|
|
|
#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
|
|
#pragma warning (pop)
|
|
#endif
|
|
|
|
// string iterator operators that satisfy STL Random Access Iterator
|
|
// requirements:
|
|
inline wxString::iterator operator+(ptrdiff_t n, wxString::iterator i)
|
|
{ return i + n; }
|
|
inline wxString::const_iterator operator+(ptrdiff_t n, wxString::const_iterator i)
|
|
{ return i + n; }
|
|
inline wxString::reverse_iterator operator+(ptrdiff_t n, wxString::reverse_iterator i)
|
|
{ return i + n; }
|
|
inline wxString::const_reverse_iterator operator+(ptrdiff_t n, wxString::const_reverse_iterator i)
|
|
{ return i + n; }
|
|
|
|
// 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, const char *psz);
|
|
wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wchar_t *pwz);
|
|
wxString WXDLLIMPEXP_BASE operator+(const char *psz, const wxString& string);
|
|
wxString WXDLLIMPEXP_BASE operator+(const wchar_t *pwz, const wxString& string);
|
|
|
|
wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxUniChar ch);
|
|
wxString WXDLLIMPEXP_BASE operator+(wxUniChar ch, const wxString& string);
|
|
|
|
inline wxString operator+(const wxString& string, wxUniCharRef ch)
|
|
{ return string + (wxUniChar)ch; }
|
|
inline wxString operator+(const wxString& string, char ch)
|
|
{ return string + wxUniChar(ch); }
|
|
inline wxString operator+(const wxString& string, wchar_t ch)
|
|
{ return string + wxUniChar(ch); }
|
|
inline wxString operator+(wxUniCharRef ch, const wxString& string)
|
|
{ return (wxUniChar)ch + string; }
|
|
inline wxString operator+(char ch, const wxString& string)
|
|
{ return wxUniChar(ch) + string; }
|
|
inline wxString operator+(wchar_t ch, const wxString& string)
|
|
{ return wxUniChar(ch) + string; }
|
|
|
|
|
|
#define wxGetEmptyString() wxString()
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// helper functions which couldn't be defined inline
|
|
// ----------------------------------------------------------------------------
|
|
|
|
namespace wxPrivate
|
|
{
|
|
|
|
#if wxUSE_UNICODE_WCHAR
|
|
|
|
template <>
|
|
struct wxStringAsBufHelper<char>
|
|
{
|
|
static wxScopedCharBuffer Get(const wxString& s, size_t *len)
|
|
{
|
|
wxScopedCharBuffer buf(s.mb_str());
|
|
if ( len )
|
|
*len = buf ? strlen(buf) : 0;
|
|
return buf;
|
|
}
|
|
};
|
|
|
|
template <>
|
|
struct wxStringAsBufHelper<wchar_t>
|
|
{
|
|
static wxScopedWCharBuffer Get(const wxString& s, size_t *len)
|
|
{
|
|
const size_t length = s.length();
|
|
if ( len )
|
|
*len = length;
|
|
return wxScopedWCharBuffer::CreateNonOwned(s.wx_str(), length);
|
|
}
|
|
};
|
|
|
|
#elif wxUSE_UNICODE_UTF8
|
|
|
|
template <>
|
|
struct wxStringAsBufHelper<char>
|
|
{
|
|
static wxScopedCharBuffer Get(const wxString& s, size_t *len)
|
|
{
|
|
const size_t length = s.utf8_length();
|
|
if ( len )
|
|
*len = length;
|
|
return wxScopedCharBuffer::CreateNonOwned(s.wx_str(), length);
|
|
}
|
|
};
|
|
|
|
template <>
|
|
struct wxStringAsBufHelper<wchar_t>
|
|
{
|
|
static wxScopedWCharBuffer Get(const wxString& s, size_t *len)
|
|
{
|
|
wxScopedWCharBuffer wbuf(s.wc_str());
|
|
if ( len )
|
|
*len = wxWcslen(wbuf);
|
|
return wbuf;
|
|
}
|
|
};
|
|
|
|
#endif // Unicode build kind
|
|
|
|
} // namespace wxPrivate
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxStringBuffer: a tiny class allowing to get a writable pointer into string
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#if !wxUSE_STL_BASED_WXSTRING
|
|
// string buffer for direct access to string data in their native
|
|
// representation:
|
|
class wxStringInternalBuffer
|
|
{
|
|
public:
|
|
typedef wxStringCharType CharType;
|
|
|
|
wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024)
|
|
: m_str(str), m_buf(NULL)
|
|
{ m_buf = m_str.DoGetWriteBuf(lenWanted); }
|
|
|
|
~wxStringInternalBuffer() { m_str.DoUngetWriteBuf(); }
|
|
|
|
operator wxStringCharType*() const { return m_buf; }
|
|
|
|
private:
|
|
wxString& m_str;
|
|
wxStringCharType *m_buf;
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxStringInternalBuffer);
|
|
};
|
|
|
|
class wxStringInternalBufferLength
|
|
{
|
|
public:
|
|
typedef wxStringCharType CharType;
|
|
|
|
wxStringInternalBufferLength(wxString& str, size_t lenWanted = 1024)
|
|
: m_str(str), m_buf(NULL), m_len(0), m_lenSet(false)
|
|
{
|
|
m_buf = m_str.DoGetWriteBuf(lenWanted);
|
|
wxASSERT(m_buf != NULL);
|
|
}
|
|
|
|
~wxStringInternalBufferLength()
|
|
{
|
|
wxASSERT(m_lenSet);
|
|
m_str.DoUngetWriteBuf(m_len);
|
|
}
|
|
|
|
operator wxStringCharType*() const { return m_buf; }
|
|
void SetLength(size_t length) { m_len = length; m_lenSet = true; }
|
|
|
|
private:
|
|
wxString& m_str;
|
|
wxStringCharType *m_buf;
|
|
size_t m_len;
|
|
bool m_lenSet;
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxStringInternalBufferLength);
|
|
};
|
|
|
|
#endif // !wxUSE_STL_BASED_WXSTRING
|
|
|
|
template<typename T>
|
|
class wxStringTypeBufferBase
|
|
{
|
|
public:
|
|
typedef T CharType;
|
|
|
|
wxStringTypeBufferBase(wxString& str, size_t lenWanted = 1024)
|
|
: m_str(str), m_buf(lenWanted)
|
|
{
|
|
// for compatibility with old wxStringBuffer which provided direct
|
|
// access to wxString internal buffer, initialize ourselves with the
|
|
// string initial contents
|
|
|
|
// FIXME-VC6: remove the ugly (CharType *)NULL and use normal
|
|
// tchar_str<CharType>
|
|
size_t len;
|
|
const wxCharTypeBuffer<CharType> buf(str.tchar_str(&len, (CharType *)NULL));
|
|
if ( buf )
|
|
{
|
|
if ( len > lenWanted )
|
|
{
|
|
// in this case there is not enough space for terminating NUL,
|
|
// ensure that we still put it there
|
|
m_buf.data()[lenWanted] = 0;
|
|
len = lenWanted - 1;
|
|
}
|
|
|
|
memcpy(m_buf.data(), buf, (len + 1)*sizeof(CharType));
|
|
}
|
|
//else: conversion failed, this can happen when trying to get Unicode
|
|
// string contents into a char string
|
|
}
|
|
|
|
operator CharType*() { return m_buf.data(); }
|
|
|
|
protected:
|
|
wxString& m_str;
|
|
wxCharTypeBuffer<CharType> m_buf;
|
|
};
|
|
|
|
template<typename T>
|
|
class wxStringTypeBufferLengthBase : public wxStringTypeBufferBase<T>
|
|
{
|
|
public:
|
|
wxStringTypeBufferLengthBase(wxString& str, size_t lenWanted = 1024)
|
|
: wxStringTypeBufferBase<T>(str, lenWanted),
|
|
m_len(0),
|
|
m_lenSet(false)
|
|
{ }
|
|
|
|
~wxStringTypeBufferLengthBase()
|
|
{
|
|
wxASSERT_MSG( this->m_lenSet, "forgot to call SetLength()" );
|
|
}
|
|
|
|
void SetLength(size_t length) { m_len = length; m_lenSet = true; }
|
|
|
|
protected:
|
|
size_t m_len;
|
|
bool m_lenSet;
|
|
};
|
|
|
|
template<typename T>
|
|
class wxStringTypeBuffer : public wxStringTypeBufferBase<T>
|
|
{
|
|
public:
|
|
wxStringTypeBuffer(wxString& str, size_t lenWanted = 1024)
|
|
: wxStringTypeBufferBase<T>(str, lenWanted)
|
|
{ }
|
|
|
|
~wxStringTypeBuffer()
|
|
{
|
|
this->m_str.assign(this->m_buf.data());
|
|
}
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxStringTypeBuffer);
|
|
};
|
|
|
|
template<typename T>
|
|
class wxStringTypeBufferLength : public wxStringTypeBufferLengthBase<T>
|
|
{
|
|
public:
|
|
wxStringTypeBufferLength(wxString& str, size_t lenWanted = 1024)
|
|
: wxStringTypeBufferLengthBase<T>(str, lenWanted)
|
|
{ }
|
|
|
|
~wxStringTypeBufferLength()
|
|
{
|
|
this->m_str.assign(this->m_buf.data(), this->m_len);
|
|
}
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxStringTypeBufferLength);
|
|
};
|
|
|
|
#if wxUSE_STL_BASED_WXSTRING
|
|
|
|
WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferBase<wxStringCharType> )
|
|
|
|
class wxStringInternalBuffer : public wxStringTypeBufferBase<wxStringCharType>
|
|
{
|
|
public:
|
|
wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024)
|
|
: wxStringTypeBufferBase<wxStringCharType>(str, lenWanted) {}
|
|
~wxStringInternalBuffer()
|
|
{ m_str.m_impl.assign(m_buf.data()); }
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxStringInternalBuffer);
|
|
};
|
|
|
|
WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE(
|
|
wxStringTypeBufferLengthBase<wxStringCharType> )
|
|
|
|
class wxStringInternalBufferLength
|
|
: public wxStringTypeBufferLengthBase<wxStringCharType>
|
|
{
|
|
public:
|
|
wxStringInternalBufferLength(wxString& str, size_t lenWanted = 1024)
|
|
: wxStringTypeBufferLengthBase<wxStringCharType>(str, lenWanted) {}
|
|
|
|
~wxStringInternalBufferLength()
|
|
{
|
|
m_str.m_impl.assign(m_buf.data(), m_len);
|
|
}
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxStringInternalBufferLength);
|
|
};
|
|
|
|
#endif // wxUSE_STL_BASED_WXSTRING
|
|
|
|
|
|
#if wxUSE_STL_BASED_WXSTRING || wxUSE_UNICODE_UTF8
|
|
typedef wxStringTypeBuffer<wxChar> wxStringBuffer;
|
|
typedef wxStringTypeBufferLength<wxChar> wxStringBufferLength;
|
|
#else // if !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
|
|
typedef wxStringInternalBuffer wxStringBuffer;
|
|
typedef wxStringInternalBufferLength wxStringBufferLength;
|
|
#endif // !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
|
|
|
|
#if wxUSE_UNICODE_UTF8
|
|
typedef wxStringInternalBuffer wxUTF8StringBuffer;
|
|
typedef wxStringInternalBufferLength wxUTF8StringBufferLength;
|
|
#elif wxUSE_UNICODE_WCHAR
|
|
|
|
WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferBase<char> )
|
|
|
|
// Note about inlined dtors in the classes below: this is done not for
|
|
// performance reasons but just to avoid linking errors in the MSVC DLL build
|
|
// under Windows: if a class has non-inline methods it must be declared as
|
|
// being DLL-exported but, due to an extremely interesting feature of MSVC 7
|
|
// and later, any template class which is used as a base of a DLL-exported
|
|
// class is implicitly made DLL-exported too, as explained at the bottom of
|
|
// http://msdn.microsoft.com/en-us/library/twa2aw10.aspx (just to confirm: yes,
|
|
// _inheriting_ from a class can change whether it is being exported from DLL)
|
|
//
|
|
// But this results in link errors because the base template class is not DLL-
|
|
// exported, whether it is declared with WXDLLIMPEXP_BASE or not, because it
|
|
// does have only inline functions. So the simplest fix is to just make all the
|
|
// functions of these classes inline too.
|
|
|
|
class wxUTF8StringBuffer : public wxStringTypeBufferBase<char>
|
|
{
|
|
public:
|
|
wxUTF8StringBuffer(wxString& str, size_t lenWanted = 1024)
|
|
: wxStringTypeBufferBase<char>(str, lenWanted) {}
|
|
~wxUTF8StringBuffer()
|
|
{
|
|
wxMBConvStrictUTF8 conv;
|
|
size_t wlen = conv.ToWChar(NULL, 0, m_buf);
|
|
wxCHECK_RET( wlen != wxCONV_FAILED, "invalid UTF-8 data in string buffer?" );
|
|
|
|
wxStringInternalBuffer wbuf(m_str, wlen);
|
|
conv.ToWChar(wbuf, wlen, m_buf);
|
|
}
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxUTF8StringBuffer);
|
|
};
|
|
|
|
WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferLengthBase<char> )
|
|
|
|
class wxUTF8StringBufferLength : public wxStringTypeBufferLengthBase<char>
|
|
{
|
|
public:
|
|
wxUTF8StringBufferLength(wxString& str, size_t lenWanted = 1024)
|
|
: wxStringTypeBufferLengthBase<char>(str, lenWanted) {}
|
|
~wxUTF8StringBufferLength()
|
|
{
|
|
wxCHECK_RET(m_lenSet, "length not set");
|
|
|
|
wxMBConvStrictUTF8 conv;
|
|
size_t wlen = conv.ToWChar(NULL, 0, m_buf, m_len);
|
|
wxCHECK_RET( wlen != wxCONV_FAILED, "invalid UTF-8 data in string buffer?" );
|
|
|
|
wxStringInternalBufferLength wbuf(m_str, wlen);
|
|
conv.ToWChar(wbuf, wlen, m_buf, m_len);
|
|
wbuf.SetLength(wlen);
|
|
}
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxUTF8StringBufferLength);
|
|
};
|
|
#endif // wxUSE_UNICODE_UTF8/wxUSE_UNICODE_WCHAR
|
|
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// wxString comparison functions: operator versions are always case sensitive
|
|
// ---------------------------------------------------------------------------
|
|
|
|
#define wxCMP_WXCHAR_STRING(p, s, op) 0 op s.Cmp(p)
|
|
|
|
wxDEFINE_ALL_COMPARISONS(const wxChar *, const wxString&, wxCMP_WXCHAR_STRING)
|
|
|
|
#undef wxCMP_WXCHAR_STRING
|
|
|
|
inline bool operator==(const wxString& s1, const wxString& s2)
|
|
{ return s1.IsSameAs(s2); }
|
|
inline bool operator!=(const wxString& s1, const wxString& s2)
|
|
{ return !s1.IsSameAs(s2); }
|
|
inline bool operator< (const wxString& s1, const wxString& s2)
|
|
{ return s1.Cmp(s2) < 0; }
|
|
inline bool operator> (const wxString& s1, const wxString& s2)
|
|
{ return s1.Cmp(s2) > 0; }
|
|
inline bool operator<=(const wxString& s1, const wxString& s2)
|
|
{ return s1.Cmp(s2) <= 0; }
|
|
inline bool operator>=(const wxString& s1, const wxString& s2)
|
|
{ return s1.Cmp(s2) >= 0; }
|
|
|
|
inline bool operator==(const wxString& s1, const wxCStrData& s2)
|
|
{ return s1 == s2.AsString(); }
|
|
inline bool operator==(const wxCStrData& s1, const wxString& s2)
|
|
{ return s1.AsString() == s2; }
|
|
inline bool operator!=(const wxString& s1, const wxCStrData& s2)
|
|
{ return s1 != s2.AsString(); }
|
|
inline bool operator!=(const wxCStrData& s1, const wxString& s2)
|
|
{ return s1.AsString() != s2; }
|
|
|
|
inline bool operator==(const wxString& s1, const wxScopedWCharBuffer& s2)
|
|
{ return (s1.Cmp((const wchar_t *)s2) == 0); }
|
|
inline bool operator==(const wxScopedWCharBuffer& s1, const wxString& s2)
|
|
{ return (s2.Cmp((const wchar_t *)s1) == 0); }
|
|
inline bool operator!=(const wxString& s1, const wxScopedWCharBuffer& s2)
|
|
{ return (s1.Cmp((const wchar_t *)s2) != 0); }
|
|
inline bool operator!=(const wxScopedWCharBuffer& s1, const wxString& s2)
|
|
{ return (s2.Cmp((const wchar_t *)s1) != 0); }
|
|
|
|
inline bool operator==(const wxString& s1, const wxScopedCharBuffer& s2)
|
|
{ return (s1.Cmp((const char *)s2) == 0); }
|
|
inline bool operator==(const wxScopedCharBuffer& s1, const wxString& s2)
|
|
{ return (s2.Cmp((const char *)s1) == 0); }
|
|
inline bool operator!=(const wxString& s1, const wxScopedCharBuffer& s2)
|
|
{ return (s1.Cmp((const char *)s2) != 0); }
|
|
inline bool operator!=(const wxScopedCharBuffer& s1, const wxString& s2)
|
|
{ return (s2.Cmp((const char *)s1) != 0); }
|
|
|
|
inline wxString operator+(const wxString& string, const wxScopedWCharBuffer& buf)
|
|
{ return string + (const wchar_t *)buf; }
|
|
inline wxString operator+(const wxScopedWCharBuffer& buf, const wxString& string)
|
|
{ return (const wchar_t *)buf + string; }
|
|
|
|
inline wxString operator+(const wxString& string, const wxScopedCharBuffer& buf)
|
|
{ return string + (const char *)buf; }
|
|
inline wxString operator+(const wxScopedCharBuffer& buf, const wxString& string)
|
|
{ return (const char *)buf + string; }
|
|
|
|
// comparison with char
|
|
inline bool operator==(const wxUniChar& c, const wxString& s) { return s.IsSameAs(c); }
|
|
inline bool operator==(const wxUniCharRef& c, const wxString& s) { return s.IsSameAs(c); }
|
|
inline bool operator==(char c, const wxString& s) { return s.IsSameAs(c); }
|
|
inline bool operator==(wchar_t c, const wxString& s) { return s.IsSameAs(c); }
|
|
inline bool operator==(int c, const wxString& s) { return s.IsSameAs(c); }
|
|
inline bool operator==(const wxString& s, const wxUniChar& c) { return s.IsSameAs(c); }
|
|
inline bool operator==(const wxString& s, const wxUniCharRef& c) { return s.IsSameAs(c); }
|
|
inline bool operator==(const wxString& s, char c) { return s.IsSameAs(c); }
|
|
inline bool operator==(const wxString& s, wchar_t c) { return s.IsSameAs(c); }
|
|
inline bool operator!=(const wxUniChar& c, const wxString& s) { return !s.IsSameAs(c); }
|
|
inline bool operator!=(const wxUniCharRef& c, const wxString& s) { return !s.IsSameAs(c); }
|
|
inline bool operator!=(char c, const wxString& s) { return !s.IsSameAs(c); }
|
|
inline bool operator!=(wchar_t c, const wxString& s) { return !s.IsSameAs(c); }
|
|
inline bool operator!=(int c, const wxString& s) { return !s.IsSameAs(c); }
|
|
inline bool operator!=(const wxString& s, const wxUniChar& c) { return !s.IsSameAs(c); }
|
|
inline bool operator!=(const wxString& s, const wxUniCharRef& c) { return !s.IsSameAs(c); }
|
|
inline bool operator!=(const wxString& s, char c) { return !s.IsSameAs(c); }
|
|
inline bool operator!=(const wxString& s, wchar_t c) { return !s.IsSameAs(c); }
|
|
|
|
|
|
// wxString iterators comparisons
|
|
inline bool wxString::iterator::operator==(const const_iterator& i) const
|
|
{ return i == *this; }
|
|
inline bool wxString::iterator::operator!=(const const_iterator& i) const
|
|
{ return i != *this; }
|
|
inline bool wxString::iterator::operator<(const const_iterator& i) const
|
|
{ return i > *this; }
|
|
inline bool wxString::iterator::operator>(const const_iterator& i) const
|
|
{ return i < *this; }
|
|
inline bool wxString::iterator::operator<=(const const_iterator& i) const
|
|
{ return i >= *this; }
|
|
inline bool wxString::iterator::operator>=(const const_iterator& i) const
|
|
{ return i <= *this; }
|
|
|
|
// comparison with C string in Unicode build
|
|
#if wxUSE_UNICODE
|
|
|
|
#define wxCMP_CHAR_STRING(p, s, op) wxString(p) op s
|
|
|
|
wxDEFINE_ALL_COMPARISONS(const char *, const wxString&, wxCMP_CHAR_STRING)
|
|
|
|
#undef wxCMP_CHAR_STRING
|
|
|
|
#endif // wxUSE_UNICODE
|
|
|
|
// we also need to provide the operators for comparison with wxCStrData to
|
|
// resolve ambiguity between operator(const wxChar *,const wxString &) and
|
|
// operator(const wxChar *, const wxChar *) for "p == s.c_str()"
|
|
//
|
|
// notice that these are (shallow) pointer comparisons, not (deep) string ones
|
|
#define wxCMP_CHAR_CSTRDATA(p, s, op) p op s.AsChar()
|
|
#define wxCMP_WCHAR_CSTRDATA(p, s, op) p op s.AsWChar()
|
|
|
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wxDEFINE_ALL_COMPARISONS(const wchar_t *, const wxCStrData&, wxCMP_WCHAR_CSTRDATA)
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wxDEFINE_ALL_COMPARISONS(const char *, const wxCStrData&, wxCMP_CHAR_CSTRDATA)
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#undef wxCMP_CHAR_CSTRDATA
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#undef wxCMP_WCHAR_CSTRDATA
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// ---------------------------------------------------------------------------
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// Implementation only from here until the end of file
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// ---------------------------------------------------------------------------
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#if wxUSE_STD_IOSTREAM
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#include "wx/iosfwrap.h"
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WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxString&);
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WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxCStrData&);
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WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxScopedCharBuffer&);
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#ifndef __BORLANDC__
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WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxScopedWCharBuffer&);
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#endif
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#if wxUSE_UNICODE && defined(HAVE_WOSTREAM)
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WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxString&);
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WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxCStrData&);
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WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxScopedWCharBuffer&);
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#endif // wxUSE_UNICODE && defined(HAVE_WOSTREAM)
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#endif // wxUSE_STD_IOSTREAM
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// ---------------------------------------------------------------------------
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// wxCStrData implementation
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// ---------------------------------------------------------------------------
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inline wxCStrData::wxCStrData(char *buf)
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: m_str(new wxString(buf)), m_offset(0), m_owned(true) {}
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inline wxCStrData::wxCStrData(wchar_t *buf)
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: m_str(new wxString(buf)), m_offset(0), m_owned(true) {}
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inline wxCStrData::wxCStrData(const wxCStrData& data)
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: m_str(data.m_owned ? new wxString(*data.m_str) : data.m_str),
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m_offset(data.m_offset),
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m_owned(data.m_owned)
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{
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}
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inline wxCStrData::~wxCStrData()
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{
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if ( m_owned )
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delete const_cast<wxString*>(m_str); // cast to silence warnings
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}
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// AsChar() and AsWChar() implementations simply forward to wxString methods
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inline const wchar_t* wxCStrData::AsWChar() const
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{
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const wchar_t * const p =
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#if wxUSE_UNICODE_WCHAR
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m_str->wc_str();
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#elif wxUSE_UNICODE_UTF8
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m_str->AsWChar(wxMBConvStrictUTF8());
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#else
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m_str->AsWChar(wxConvLibc);
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#endif
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// in Unicode build the string always has a valid Unicode representation
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// and even if a conversion is needed (as in UTF8 case) it can't fail
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//
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// but in ANSI build the string contents might be not convertible to
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// Unicode using the current locale encoding so we do need to check for
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// errors
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#if !wxUSE_UNICODE
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if ( !p )
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{
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// if conversion fails, return empty string and not NULL to avoid
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// crashes in code written with either wxWidgets 2 wxString or
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// std::string behaviour in mind: neither of them ever returns NULL
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// from its c_str() and so we shouldn't neither
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//
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// notice that the same is done in AsChar() below and
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// wxString::wc_str() and mb_str() for the same reasons
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return L"";
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}
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#endif // !wxUSE_UNICODE
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return p + m_offset;
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}
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inline const char* wxCStrData::AsChar() const
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{
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#if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
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const char * const p = m_str->AsChar(wxConvLibc);
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if ( !p )
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return "";
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#else // !wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY
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const char * const p = m_str->mb_str();
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#endif // wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
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return p + m_offset;
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}
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inline wxString wxCStrData::AsString() const
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{
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if ( m_offset == 0 )
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return *m_str;
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else
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return m_str->Mid(m_offset);
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}
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inline const wxStringCharType *wxCStrData::AsInternal() const
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{
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#if wxUSE_UNICODE_UTF8
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return wxStringOperations::AddToIter(m_str->wx_str(), m_offset);
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#else
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return m_str->wx_str() + m_offset;
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#endif
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}
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inline wxUniChar wxCStrData::operator*() const
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{
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if ( m_str->empty() )
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return wxUniChar(wxT('\0'));
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else
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return (*m_str)[m_offset];
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}
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inline wxUniChar wxCStrData::operator[](size_t n) const
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{
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// NB: we intentionally use operator[] and not at() here because the former
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// works for the terminating NUL while the latter does not
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return (*m_str)[m_offset + n];
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}
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// ----------------------------------------------------------------------------
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// more wxCStrData operators
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// ----------------------------------------------------------------------------
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// we need to define those to allow "size_t pos = p - s.c_str()" where p is
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// some pointer into the string
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inline size_t operator-(const char *p, const wxCStrData& cs)
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{
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return p - cs.AsChar();
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}
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inline size_t operator-(const wchar_t *p, const wxCStrData& cs)
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|
{
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return p - cs.AsWChar();
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}
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// ----------------------------------------------------------------------------
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// implementation of wx[W]CharBuffer inline methods using wxCStrData
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// ----------------------------------------------------------------------------
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// FIXME-UTF8: move this to buffer.h
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inline wxCharBuffer::wxCharBuffer(const wxCStrData& cstr)
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: wxCharTypeBufferBase(cstr.AsCharBuf())
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{
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}
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inline wxWCharBuffer::wxWCharBuffer(const wxCStrData& cstr)
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: wxCharTypeBufferBase(cstr.AsWCharBuf())
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|
{
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}
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#if wxUSE_UNICODE_UTF8
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// ----------------------------------------------------------------------------
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|
// implementation of wxStringIteratorNode inline methods
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|
// ----------------------------------------------------------------------------
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void wxStringIteratorNode::DoSet(const wxString *str,
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wxStringImpl::const_iterator *citer,
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|
wxStringImpl::iterator *iter)
|
|
{
|
|
m_prev = NULL;
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|
m_iter = iter;
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|
m_citer = citer;
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m_str = str;
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if ( str )
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{
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m_next = str->m_iterators.ptr;
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const_cast<wxString*>(m_str)->m_iterators.ptr = this;
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if ( m_next )
|
|
m_next->m_prev = this;
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}
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else
|
|
{
|
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m_next = NULL;
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}
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}
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|
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void wxStringIteratorNode::clear()
|
|
{
|
|
if ( m_next )
|
|
m_next->m_prev = m_prev;
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if ( m_prev )
|
|
m_prev->m_next = m_next;
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else if ( m_str ) // first in the list
|
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const_cast<wxString*>(m_str)->m_iterators.ptr = m_next;
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|
|
m_next = m_prev = NULL;
|
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m_citer = NULL;
|
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m_iter = NULL;
|
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m_str = NULL;
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}
|
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#endif // wxUSE_UNICODE_UTF8
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|
|
#if WXWIN_COMPATIBILITY_2_8
|
|
// lot of code out there doesn't explicitly include wx/crt.h, but uses
|
|
// CRT wrappers that are now declared in wx/wxcrt.h and wx/wxcrtvararg.h,
|
|
// so let's include this header now that wxString is defined and it's safe
|
|
// to do it:
|
|
#include "wx/crt.h"
|
|
#endif
|
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|
|
// ----------------------------------------------------------------------------
|
|
// Checks on wxString characters
|
|
// ----------------------------------------------------------------------------
|
|
|
|
template<bool (T)(const wxUniChar& c)>
|
|
inline bool wxStringCheck(const wxString& val)
|
|
{
|
|
for ( wxString::const_iterator i = val.begin();
|
|
i != val.end();
|
|
++i )
|
|
if (T(*i) == 0)
|
|
return false;
|
|
return true;
|
|
}
|
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|
|
#endif // _WX_WXSTRING_H_
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