cheng/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
5487ff0f50
wxWidgets/include/wx/string.h
Václav Slavík 5487ff0f50 use const wxMBConv& instead of wxMBConv& in public methods so that it's possible to pass in temporary objects; 
don't use global wxConvUTF8 object internally, it may be unavailable at static objects destruction time


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45973 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2007-05-11 20:55:24 +00:00

2959 lines
115 KiB
C++
Raw Blame History

///////////////////////////////////////////////////////////////////////////////
// Name: wx/string.h
// Purpose: wxString class
// Author: Vadim Zeitlin
// Modified by:
// Created: 29/01/98
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
/*
Efficient string class [more or less] compatible with MFC CString,
wxWidgets version 1 wxString and std::string and some handy functions
missing from string.h.
*/
#ifndef _WX_WXSTRING_H__
#define _WX_WXSTRING_H__
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#include "wx/defs.h" // everybody should include this
#if defined(__WXMAC__) || defined(__VISAGECPP__)
#include <ctype.h>
#endif
#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
// problem in VACPP V4 with including stdlib.h multiple times
// strconv includes it anyway
# include <stdio.h>
# include <string.h>
# include <stdarg.h>
# include <limits.h>
#else
# include <string.h>
# include <stdio.h>
# include <stdarg.h>
# include <limits.h>
# include <stdlib.h>
#endif
#ifdef HAVE_STRCASECMP_IN_STRINGS_H
#include <strings.h> // for strcasecmp()
#endif // HAVE_STRCASECMP_IN_STRINGS_H
#ifdef __WXPALMOS__
#include <StringMgr.h>
#endif
#include "wx/wxcrt.h" // for wxChar, wxStrlen() etc.
#include "wx/strvararg.h"
#include "wx/buffer.h" // for wxCharBuffer
#include "wx/strconv.h" // for wxConvertXXX() macros and wxMBConv classes
#include "wx/stringimpl.h"
#include "wx/stringops.h"
#include "wx/unichar.h"
class WXDLLIMPEXP_BASE wxString;
// unless this symbol is predefined to disable the compatibility functions, do
// use them
#ifndef WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
#define WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER 1
#endif
// ---------------------------------------------------------------------------
// macros
// ---------------------------------------------------------------------------
// casts [unfortunately!] needed to call some broken functions which require
// "char *" instead of "const char *"
#define WXSTRINGCAST (wxChar *)(const wxChar *)
#define wxCSTRINGCAST (wxChar *)(const wxChar *)
#define wxMBSTRINGCAST (char *)(const char *)
#define wxWCSTRINGCAST (wchar_t *)(const wchar_t *)
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
#if WXWIN_COMPATIBILITY_2_6
// deprecated in favour of wxString::npos, don't use in new code
//
// maximum possible length for a string means "take all string" everywhere
#define wxSTRING_MAXLEN wxString::npos
#endif // WXWIN_COMPATIBILITY_2_6
// ---------------------------------------------------------------------------
// global functions complementing standard C string library replacements for
// strlen() and portable strcasecmp()
//---------------------------------------------------------------------------
#if WXWIN_COMPATIBILITY_2_8
// Use wxXXX() functions from wxcrt.h instead! These functions are for
// backwards compatibility only.
// checks whether the passed in pointer is NULL and if the string is empty
wxDEPRECATED( inline bool IsEmpty(const char *p) );
inline bool IsEmpty(const char *p) { return (!p || !*p); }
// safe version of strlen() (returns 0 if passed NULL pointer)
wxDEPRECATED( inline size_t Strlen(const char *psz) );
inline size_t Strlen(const char *psz)
{ return psz ? strlen(psz) : 0; }
// portable strcasecmp/_stricmp
wxDEPRECATED( inline int Stricmp(const char *psz1, const char *psz2) );
inline int Stricmp(const char *psz1, const char *psz2)
{
#if defined(__VISUALC__) && defined(__WXWINCE__)
register char c1, c2;
do {
c1 = tolower(*psz1++);
c2 = tolower(*psz2++);
} while ( c1 && (c1 == c2) );
return c1 - c2;
#elif defined(__VISUALC__) || ( defined(__MWERKS__) && defined(__INTEL__) )
return _stricmp(psz1, psz2);
#elif defined(__SC__)
return _stricmp(psz1, psz2);
#elif defined(__SALFORDC__)
return stricmp(psz1, psz2);
#elif defined(__BORLANDC__)
return stricmp(psz1, psz2);
#elif defined(__WATCOMC__)
return stricmp(psz1, psz2);
#elif defined(__DJGPP__)
return stricmp(psz1, psz2);
#elif defined(__EMX__)
return stricmp(psz1, psz2);
#elif defined(__WXPM__)
return stricmp(psz1, psz2);
#elif defined(__WXPALMOS__) || \
defined(HAVE_STRCASECMP_IN_STRING_H) || \
defined(HAVE_STRCASECMP_IN_STRINGS_H) || \
defined(__GNUWIN32__)
return strcasecmp(psz1, psz2);
#elif defined(__MWERKS__) && !defined(__INTEL__)
register char c1, c2;
do {
c1 = tolower(*psz1++);
c2 = tolower(*psz2++);
} while ( c1 && (c1 == c2) );
return c1 - c2;
#else
// almost all compilers/libraries provide this function (unfortunately under
// different names), that's why we don't implement our own which will surely
// be more efficient than this code (uncomment to use):
/*
register char c1, c2;
do {
c1 = tolower(*psz1++);
c2 = tolower(*psz2++);
} while ( c1 && (c1 == c2) );
return c1 - c2;
*/
#error "Please define string case-insensitive compare for your OS/compiler"
#endif // OS/compiler
}
#endif // WXWIN_COMPATIBILITY_2_8
// ----------------------------------------------------------------------------
// wxCStrData
// ----------------------------------------------------------------------------
// Lightweight object returned by wxString::c_str() and implicitly convertible
// to either const char* or const wchar_t*.
class WXDLLIMPEXP_BASE wxCStrData
{
private:
// Ctors; for internal use by wxString and wxCStrData only
wxCStrData(const wxString *str, size_t offset = 0, bool owned = false)
: m_str(str), m_offset(offset), m_owned(owned) {}
public:
// Ctor constructs the object from char literal; they are needed to make
// operator?: compile and they intentionally take char*, not const char*
inline wxCStrData(char *buf);
inline wxCStrData(wchar_t *buf);
inline wxCStrData(const wxCStrData& data);
inline ~wxCStrData();
// methods defined inline below must be declared inline or mingw32 3.4.5
// warns about "<symbol> defined locally after being referenced with
// dllimport linkage"
#if wxUSE_UNICODE_WCHAR
inline
#endif
const wchar_t* AsWChar() const;
operator const wchar_t*() const { return AsWChar(); }
#if !wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY
inline
#endif
const char* AsChar() const;
const unsigned char* AsUnsignedChar() const
{ return (const unsigned char *) AsChar(); }
operator const char*() const { return AsChar(); }
operator const unsigned char*() const { return AsUnsignedChar(); }
operator const void*() const { return AsChar(); }
inline const wxCharBuffer AsCharBuf() const;
inline const wxWCharBuffer AsWCharBuf() const;
inline wxString AsString() const;
// returns the value as C string in internal representation (equivalent
// to AsString().wx_str(), but more efficient)
const wxStringCharType *AsInternal() const;
// allow expressions like "c_str()[0]":
inline wxUniChar operator[](size_t n) const;
wxUniChar operator[](int n) const { return operator[](size_t(n)); }
wxUniChar operator[](long n) const { return operator[](size_t(n)); }
#ifndef wxSIZE_T_IS_UINT
wxUniChar operator[](unsigned int n) const { return operator[](size_t(n)); }
#endif // size_t != unsigned int
// these operators are needed to emulate the pointer semantics of c_str():
// expressions like "wxChar *p = str.c_str() + 1;" should continue to work
// (we need both versions to resolve ambiguities):
wxCStrData operator+(int n) const
{ return wxCStrData(m_str, m_offset + n, m_owned); }
wxCStrData operator+(long n) const
{ return wxCStrData(m_str, m_offset + n, m_owned); }
wxCStrData operator+(size_t n) const
{ return wxCStrData(m_str, m_offset + n, m_owned); }
// and these for "str.c_str() + n - 2":
wxCStrData operator-(int n) const
{
wxASSERT_MSG( n <= (int)m_offset,
_T("attempt to construct address before the beginning of the string") );
return wxCStrData(m_str, m_offset - n, m_owned);
}
wxCStrData operator-(long n) const
{
wxASSERT_MSG( n <= (int)m_offset,
_T("attempt to construct address before the beginning of the string") );
return wxCStrData(m_str, m_offset - n, m_owned);
}
wxCStrData operator-(size_t n) const
{
wxASSERT_MSG( n <= m_offset,
_T("attempt to construct address before the beginning of the string") );
return wxCStrData(m_str, m_offset - n, m_owned);
}
// this operator is needed to make expressions like "*c_str()" or
// "*(c_str() + 2)" work
inline wxUniChar operator*() const;
private:
const wxString *m_str;
size_t m_offset;
bool m_owned;
friend class WXDLLIMPEXP_BASE wxString;
};
// ----------------------------------------------------------------------------
// wxStringPrintfMixin
// ---------------------------------------------------------------------------
// NB: VC6 has a bug that causes linker errors if you have template methods
// in a class using __declspec(dllimport). The solution is to split such
// class into two classes, one that contains the template methods and does
// *not* use WXDLLIMPEXP_BASE and another class that contains the rest
// (with DLL linkage).
//
// We only do this for VC6 here, because the code is less efficient
// (Printf() has to use dynamic_cast<>) and because OpenWatcom compiler
// cannot compile this code.
#if defined(__VISUALC__) && __VISUALC__ < 1300
#define wxNEEDS_WXSTRING_PRINTF_MIXIN
#endif
#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
// this class contains implementation of wxString's vararg methods, it's
// exported from wxBase DLL
class WXDLLIMPEXP_BASE wxStringPrintfMixinBase
{
protected:
wxStringPrintfMixinBase() {}
#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
};
// this class contains template wrappers for wxString's vararg methods, it's
// intentionally *not* exported from the DLL in order to fix the VC6 bug
// described above
class wxStringPrintfMixin : public wxStringPrintfMixinBase
{
private:
// to further complicate things, we can't return wxString from
// wxStringPrintfMixin::Format() because wxString is not yet declared at
// this point; the solution is to use this fake type trait template - this
// way the compiler won't know the return type until Format() is used
// (this doesn't compile with Watcom, but VC6 compiles it just fine):
template<typename T> struct StringReturnType
{
typedef wxString type;
};
public:
// these are duplicated wxString methods, they're also declared below
// if !wxNEEDS_WXSTRING_PRINTF_MIXIN:
// static wxString Format(const wString& format, ...) ATTRIBUTE_PRINTF_1;
WX_DEFINE_VARARG_FUNC_SANS_N0(static typename StringReturnType<T1>::type,
Format, 1, (const wxFormatString&),
DoFormatWchar, DoFormatUtf8)
// We have to implement the version without template arguments manually
// because of the StringReturnType<> hack, although WX_DEFINE_VARARG_FUNC
// normally does it itself. It has to be a template so that we can use
// the hack, even though there's no real template parameter:
struct FormatDummyArg {} ;
template<typename T>
inline static typename StringReturnType<T>::type
Format(const wxFormatString& fmt, FormatDummyArg dummy = FormatDummyArg())
{
return DoFormatWchar(fmt);
}
// int Printf(const wxString& format, ...);
WX_DEFINE_VARARG_FUNC(int, Printf, 1, (const wxFormatString&),
DoPrintfWchar, DoPrintfUtf8)
// int sprintf(const wxString& format, ...) ATTRIBUTE_PRINTF_2;
WX_DEFINE_VARARG_FUNC(int, sprintf, 1, (const wxFormatString&),
DoPrintfWchar, DoPrintfUtf8)
protected:
wxStringPrintfMixin() : wxStringPrintfMixinBase() {}
};
#endif // wxNEEDS_WXSTRING_PRINTF_MIXIN
// ----------------------------------------------------------------------------
// wxString: string class trying to be compatible with std::string, MFC
// CString and wxWindows 1.x wxString all at once
// ---------------------------------------------------------------------------
#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
// "non dll-interface class 'wxStringPrintfMixin' used as base interface
// for dll-interface class 'wxString'" -- this is OK in our case
#pragma warning (disable:4275)
#endif
class WXDLLIMPEXP_BASE wxString
#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
: public wxStringPrintfMixin
#endif
{
// NB: special care was taken in arranging the member functions in such order
// that all inline functions can be effectively inlined, verify that all
// performance critical functions are still inlined if you change order!
public:
// an 'invalid' value for string index, moved to this place due to a CW bug
static const size_t npos;
private:
// if we hadn't made these operators private, it would be possible to
// compile "wxString s; s = 17;" without any warnings as 17 is implicitly
// converted to char in C and we do have operator=(char)
//
// NB: we don't need other versions (short/long and unsigned) as attempt
// to assign another numeric type to wxString will now result in
// ambiguity between operator=(char) and operator=(int)
wxString& operator=(int);
// these methods are not implemented - there is _no_ conversion from int to
// string, you're doing something wrong if the compiler wants to call it!
//
// try `s << i' or `s.Printf("%d", i)' instead
wxString(int);
// 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_) {}
};
#if wxUSE_UNICODE_UTF8
// even char* -> char* needs conversion, from locale charset to UTF-8
typedef SubstrBufFromType<wxCharBuffer> SubstrBufFromWC;
typedef SubstrBufFromType<wxCharBuffer> SubstrBufFromMB;
#elif wxUSE_UNICODE_WCHAR
typedef SubstrBufFromType<const wchar_t*> SubstrBufFromWC;
typedef SubstrBufFromType<wxWCharBuffer> SubstrBufFromMB;
#else
typedef SubstrBufFromType<const char*> SubstrBufFromMB;
typedef SubstrBufFromType<wxCharBuffer> 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 wxWCharBuffer 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 wxCharBuffer 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; }
#else // wxUSE_UNICODE_UTF8
static wxCharBuffer 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 wxCharBuffer 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()); }
size_t PosToImpl(size_t pos) const
{
if ( pos == 0 || pos == npos )
return pos;
else
return (begin() + pos).impl() - m_impl.begin();
}
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(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_STL
#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
#else
#define WX_STR_ITERATOR_TAG void /* dummy type */
#endif
#define WX_STR_ITERATOR_IMPL(iterator_name, pointer_type, \
reference_type, reference_ctor) \
private: \
typedef wxStringImpl::iterator_name underlying_iterator; \
public: \
typedef WX_STR_ITERATOR_TAG iterator_category; \
typedef wxUniChar value_type; \
typedef int difference_type; \
typedef reference_type reference; \
typedef pointer_type pointer; \
\
reference operator*() const { return reference_ctor; } \
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+=(int n) \
{ \
m_cur = wxStringOperations::AddToIter(m_cur, n); \
return *this; \
} \
iterator_name& operator+=(size_t n) \
{ \
m_cur = wxStringOperations::AddToIter(m_cur, (int)n); \
return *this; \
} \
iterator_name& operator-=(int n) \
{ \
m_cur = wxStringOperations::AddToIter(m_cur, -n); \
return *this; \
} \
iterator_name& operator-=(size_t n) \
{ \
m_cur = wxStringOperations::AddToIter(m_cur, -(int)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 WXDLLIMPEXP_BASE wxString; \
friend class WXDLLIMPEXP_BASE wxCStrData; \
\
private: \
underlying_iterator m_cur
class const_iterator;
#if wxUSE_UNICODE_UTF8
class iterator
{
// 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.
WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef,
wxUniCharRef::CreateForString(m_str, m_cur));
public:
iterator(const iterator& i) : m_cur(i.m_cur), m_str(i.m_str) {}
iterator operator+(int n) const
{ return iterator(m_str, wxStringOperations::AddToIter(m_cur, n)); }
iterator operator+(size_t n) const
{ return iterator(m_str, wxStringOperations::AddToIter(m_cur, (int)n)); }
iterator operator-(int n) const
{ return iterator(m_str, wxStringOperations::AddToIter(m_cur, -n)); }
iterator operator-(size_t n) const
{ return iterator(m_str, wxStringOperations::AddToIter(m_cur, -(int)n)); }
private:
iterator(wxString *str, underlying_iterator ptr)
: m_cur(ptr), m_str(str->m_impl) {}
iterator(wxStringImpl& str, underlying_iterator ptr)
: m_cur(ptr), m_str(str) {}
wxStringImpl& m_str;
friend class const_iterator;
};
size_t IterToImplPos(wxString::iterator i) const
{ return wxStringImpl::const_iterator(i.impl()) - m_impl.begin(); }
#else // !wxUSE_UNICODE_UTF8
class iterator
{
WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef,
wxUniCharRef::CreateForString(m_cur));
public:
iterator(const iterator& i) : m_cur(i.m_cur) {}
iterator operator+(int n) const
{ return iterator(wxStringOperations::AddToIter(m_cur, n)); }
iterator operator+(size_t n) const
{ return iterator(wxStringOperations::AddToIter(m_cur, (int)n)); }
iterator operator-(int n) const
{ return iterator(wxStringOperations::AddToIter(m_cur, -n)); }
iterator operator-(size_t n) const
{ return iterator(wxStringOperations::AddToIter(m_cur, -(int)n)); }
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;
};
#endif // wxUSE_UNICODE_UTF8/!wxUSE_UNICODE_UTF8
class 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,
wxStringOperations::DecodeChar(m_cur));
public:
const_iterator(const const_iterator& i) : m_cur(i.m_cur) {}
const_iterator(const iterator& i) : m_cur(i.m_cur) {}
const_iterator operator+(int n) const
{ return const_iterator(wxStringOperations::AddToIter(m_cur, n)); }
const_iterator operator+(size_t n) const
{ return const_iterator(wxStringOperations::AddToIter(m_cur, (int)n)); }
const_iterator operator-(int n) const
{ return const_iterator(wxStringOperations::AddToIter(m_cur, -n)); }
const_iterator operator-(size_t n) const
{ return const_iterator(wxStringOperations::AddToIter(m_cur, -(int)n)); }
private:
// for internal wxString use only:
const_iterator(underlying_iterator ptr) : m_cur(ptr) {}
};
#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;
typedef typename T::iterator_category 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(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+(int n) const
{ return reverse_iterator_impl<T>(m_cur - n); }
reverse_iterator_impl operator+(size_t n) const
{ return reverse_iterator_impl<T>(m_cur - n); }
reverse_iterator_impl operator-(int n) const
{ return reverse_iterator_impl<T>(m_cur + n); }
reverse_iterator_impl operator-(size_t n) const
{ return reverse_iterator_impl<T>(m_cur + n); }
reverse_iterator_impl operator+=(int n)
{ m_cur -= n; return *this; }
reverse_iterator_impl operator+=(size_t n)
{ m_cur -= n; return *this; }
reverse_iterator_impl operator-=(int n)
{ m_cur += n; return *this; }
reverse_iterator_impl operator-=(size_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->begin() + data.m_offset);
}
// 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 wxCharBuffer& buf)
{ assign(buf.data()); } // FIXME-UTF8: fix for embedded NUL and buffer length
wxString(const wxWCharBuffer& buf)
{ assign(buf.data()); } // FIXME-UTF8: fix for embedded NUL and buffer length
wxString(const wxCStrData& cstr)
: m_impl(cstr.AsString().m_impl) { }
// 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); }
// 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
#if wxUSE_UNICODE_WCHAR && wxUSE_STL_BASED_WXSTRING
// wxStringImpl is std::string in the encoding we want
operator const wxStdWideString&() const { return m_impl; }
#else
// wxStringImpl is either not std::string or needs conversion
operator wxStdWideString() const
// FIXME-UTF8: broken for embedded NULs
{ return wxStdWideString(wc_str()); }
#endif
#if (!wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY) && wxUSE_STL_BASED_WXSTRING
// wxStringImpl is std::string in the encoding we want
operator const std::string&() const { return m_impl; }
#else
// wxStringImpl is either not std::string or needs conversion
operator std::string() const
// FIXME-UTF8: broken for embedded NULs
{ return std::string(mb_str()); }
#endif
#endif // wxUSE_STL
// first valid index position
const_iterator begin() const { return const_iterator(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(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 { return end() - begin(); } // FIXME-UTF8: optimize!
#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(); }
size_type capacity() const { return m_impl.capacity(); } // FIXME-UTF8
void reserve(size_t sz) { m_impl.reserve(sz); } // FIXME-UTF8
void resize(size_t nSize, wxUniChar ch = wxT('\0'))
{
#if wxUSE_UNICODE_UTF8
if ( !ch.IsAscii() )
{
size_t len = length();
if ( nSize == len)
return;
else if ( nSize < len )
erase(nSize);
else
append(nSize - len, ch);
}
else
#endif
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()
{
Truncate(0);
wxASSERT_MSG( empty(), _T("string not empty after call to Empty()?") );
}
// empty the string and free memory
void Clear()
{
wxString tmp(wxEmptyString);
swap(tmp);
}
// contents test
// Is an ascii value
bool IsAscii() const;
// Is a number
bool IsNumber() const;
// Is a word
bool IsWord() const;
// data access (all indexes are 0 based)
// read access
wxUniChar at(size_t n) const
{ return *(begin() + n); } // FIXME-UTF8: optimize?
wxUniChar GetChar(size_t n) const
{ return at(n); }
// read/write access
wxUniCharRef at(size_t n)
{ return *(begin() + n); } // FIXME-UTF8: optimize?
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(), _T("wxString: index out of bounds") );
return *rbegin();
}
// get writable last character
wxUniCharRef Last()
{
wxASSERT_MSG( !empty(), _T("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
// explicit conversion to C string (use this with printf()!)
wxCStrData c_str() const { return wxCStrData(this); }
wxCStrData data() const { return c_str(); }
// implicit conversion to C string
operator wxCStrData() const { return c_str(); }
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(); }
// 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/from plain (i.e. 7 bit) ASCII: this is useful for
// converting numbers or strings which are certain not to contain special
// chars (typically system functions, X atoms, environment variables etc.)
//
// the behaviour of these functions with the strings containing anything
// else than 7 bit ASCII characters is undefined, use at your own risk.
#if wxUSE_UNICODE
static wxString FromAscii(const char *ascii); // string
static wxString FromAscii(const char ascii); // char
const wxCharBuffer ToAscii() const;
#else // ANSI
static wxString FromAscii(const char *ascii) { return wxString( ascii ); }
static wxString FromAscii(const char ascii) { return wxString( ascii ); }
const char *ToAscii() const { return c_str(); }
#endif // Unicode/!Unicode
// conversion to/from UTF-8:
#if wxUSE_UNICODE_UTF8
static wxString FromUTF8(const char *utf8)
{
wxASSERT( wxStringOperations::IsValidUtf8String(utf8) );
return FromImpl(wxStringImpl(utf8));
}
static wxString FromUTF8(const char *utf8, size_t len)
{
wxASSERT( wxStringOperations::IsValidUtf8String(utf8, len) );
return FromImpl(wxStringImpl(utf8, len));
}
const char* utf8_str() const { return wx_str(); }
const char* ToUTF8() const { return wx_str(); }
#elif wxUSE_UNICODE_WCHAR
static wxString FromUTF8(const char *utf8)
{ return wxString(utf8, wxMBConvUTF8()); }
static wxString FromUTF8(const char *utf8, size_t len)
{ return wxString(utf8, wxMBConvUTF8(), len); }
const wxCharBuffer utf8_str() const { return mb_str(wxMBConvUTF8()); }
const wxCharBuffer ToUTF8() const { return utf8_str(); }
#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;
wxWCharBuffer buf(wxMBConvUTF8().cMB2WC(utf8, len == npos ? wxNO_LEN : len, &wlen));
return wxString(buf.data(), wlen);
}
const wxCharBuffer utf8_str() const
{ return wxMBConvUTF8().cWC2MB(wc_str()); }
const wxCharBuffer ToUTF8() const { return utf8_str(); }
#endif
// 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 wxCharBuffer 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 char *To8BitData() const { return c_str(); }
#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
#if wxUSE_UTF8_LOCALE_ONLY
const char* mb_str() const { return wx_str(); }
const wxCharBuffer mb_str(const wxMBConv& conv) const;
#else
const wxCharBuffer mb_str(const wxMBConv& conv = wxConvLibc) const;
#endif
const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
#if wxUSE_UNICODE_WCHAR
const wxChar* wc_str() const { return wx_str(); }
#elif wxUSE_UNICODE_UTF8
const wxWCharBuffer wc_str() const;
#endif
// for compatibility with !wxUSE_UNICODE version
const wxWX2WCbuf wc_str(const wxMBConv& WXUNUSED(conv)) const
{ return wc_str(); }
#if wxMBFILES
const wxCharBuffer fn_str() const { return mb_str(wxConvFile); }
#else // !wxMBFILES
const wxWX2WCbuf fn_str() const { return wc_str(); }
#endif // wxMBFILES/!wxMBFILES
#else // ANSI
const wxChar* mb_str() const { return wx_str(); }
// for compatibility with wxUSE_UNICODE version
const wxChar* mb_str(const wxMBConv& WXUNUSED(conv)) const { return wx_str(); }
const wxWX2MBbuf mbc_str() const { return mb_str(); }
#if wxUSE_WCHAR_T
const wxWCharBuffer wc_str(const wxMBConv& conv = wxConvLibc) const;
#endif // wxUSE_WCHAR_T
#ifdef __WXOSX__
const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLocal ) ); }
#else
const wxChar* fn_str() const { return c_str(); }
#endif
#endif // Unicode/ANSI
// overloaded assignment
// from another wxString
wxString& operator=(const wxString& stringSrc)
{ m_impl = stringSrc.m_impl; return *this; }
wxString& operator=(const wxCStrData& cstr)
{ return *this = cstr.AsString(); }
// from a character
wxString& operator=(wxUniChar ch)
{ m_impl = wxStringOperations::EncodeChar(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)
{ if (psz) m_impl = ImplStr(psz); else Clear(); return *this; }
wxString& operator=(const wchar_t *pwz)
{ if (pwz) m_impl = ImplStr(pwz); else Clear(); return *this; }
#else
wxString& operator=(const char *psz)
{ m_impl = ImplStr(psz); return *this; }
wxString& operator=(const wchar_t *pwz)
{ m_impl = ImplStr(pwz); return *this; }
#endif
wxString& operator=(const unsigned char *psz)
{ return operator=((const char*)psz); }
// from wxWCharBuffer
wxString& operator=(const wxWCharBuffer& s)
{ return operator=(s.data()); } // FIXME-UTF8: fix for embedded NULs
// from wxCharBuffer
wxString& operator=(const wxCharBuffer& s)
{ return operator=(s.data()); } // FIXME-UTF8: fix for embedded NULs
// 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(),
_T("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 wxWCharBuffer& s)
{ return operator<<((const wchar_t *)s); }
wxString& operator<<(const wxCharBuffer& s)
{ return operator<<((const char *)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 wxCharBuffer& psz)
{ append(psz); return *this; }
wxString& Append(const wxWCharBuffer& psz)
{ append(psz); 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; }
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; }
// 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(_T("%d"), i); }
// insert an unsigned int into string
wxString& operator<<(unsigned int ui)
{ return (*this) << Format(_T("%u"), ui); }
// insert a long into string
wxString& operator<<(long l)
{ return (*this) << Format(_T("%ld"), l); }
// insert an unsigned long into string
wxString& operator<<(unsigned long ul)
{ return (*this) << Format(_T("%lu"), ul); }
#if defined wxLongLong_t && !defined wxLongLongIsLong
// insert a long long if they exist and aren't longs
wxString& operator<<(wxLongLong_t ll)
{
const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("d");
return (*this) << Format(fmt, ll);
}
// insert an unsigned long long
wxString& operator<<(wxULongLong_t ull)
{
const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("u");
return (*this) << Format(fmt , ull);
}
#endif
// insert a float into string
wxString& operator<<(float f)
{ return (*this) << Format(_T("%f"), f); }
// insert a double into string
wxString& operator<<(double d)
{ return (*this) << Format(_T("%g"), d); }
// string comparison
// case-sensitive comparison (returns a value < 0, = 0 or > 0)
int Cmp(const 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 wxCharBuffer& s) const
{ return compare(s); }
int Cmp(const wxWCharBuffer& 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
{ 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 wxCharBuffer& str, bool compareWithCase = true) const
{ return IsSameAs(str.data(), compareWithCase); }
bool IsSameAs(const wxWCharBuffer& 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
{
return (length() == 1) && (compareWithCase ? GetChar(0u) == c
: wxToupper(GetChar(0u)) == wxToupper(c));
}
// 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 occurance of ch
// (returns the whole string if ch not found)
wxString BeforeFirst(wxUniChar ch) const;
// get all characters before the last occurence of ch
// (returns empty string if ch not found)
wxString BeforeLast(wxUniChar ch) const;
// get all characters after the first occurence of ch
// (returns empty string if ch not found)
wxString AfterFirst(wxUniChar ch) const;
// get all characters after the last occurence 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
// Here's something to remember: BC++ doesn't like returns in inlines.
wxString Upper() const ;
// convert to lower case in place, return the string itself
wxString& MakeLower();
// convert to lower case, return the copy of the string
wxString Lower() const ;
// trimming/padding whitespace (either side) and truncating
// remove spaces from left or from right (default) side
wxString& Trim(bool bFromRight = true);
// add nCount copies chPad in the beginning or at the end (default)
wxString& Pad(size_t nCount, 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 wxCharBuffer& sub) const
{ return Find(sub.data()); }
int Find(const wxWCharBuffer& sub) const
{ return Find(sub.data()); }
// replace first (or all of bReplaceAll) occurences 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;
#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, ...) 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;*/ return true; }
// 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, ...) 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()
inline 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,
_T("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)
{
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)
{ m_impl.append(str.m_impl); return *this; }
// append first n (or all if n == npos) characters of sz
wxString& append(const char *sz)
{ m_impl.append(ImplStr(sz)); return *this; }
wxString& append(const wchar_t *sz)
{ m_impl.append(ImplStr(sz)); return *this; }
wxString& append(const char *sz, size_t n)
{
SubstrBufFromMB str(ImplStr(sz, n));
m_impl.append(str.data, str.len);
return *this;
}
wxString& append(const wchar_t *sz, size_t 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 wxCharBuffer& str)
{ return append(str.data()); }
wxString& append(const wxWCharBuffer& str)
{ return append(str.data()); }
// append n copies of ch
wxString& append(size_t n, wxUniChar ch)
{
#if wxUSE_UNICODE_UTF8
if ( !ch.IsAscii() )
m_impl.append(wxStringOperations::EncodeNChars(n, ch));
else
#endif
m_impl.append(n, (wxStringCharType)ch);
return *this;
}
// append from first to last
wxString& append(const_iterator first, const_iterator last)
{ 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)
{ m_impl = str.m_impl; return *this; }
wxString& assign(const wxString& str, size_t 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);
return *this;
}
// same as `= first n (or all if n == npos) characters of sz'
wxString& assign(const char *sz)
{ m_impl.assign(ImplStr(sz)); return *this; }
wxString& assign(const wchar_t *sz)
{ m_impl.assign(ImplStr(sz)); return *this; }
wxString& assign(const char *sz, size_t n)
{
SubstrBufFromMB str(ImplStr(sz, n));
m_impl.assign(str.data, str.len);
return *this;
}
wxString& assign(const wchar_t *sz, size_t 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 wxCharBuffer& str)
{ return assign(str.data()); }
wxString& assign(const wxWCharBuffer& str)
{ return assign(str.data()); }
wxString& assign(const wxCStrData& str, size_t len)
{ return assign(str.AsString(), len); }
wxString& assign(const wxCharBuffer& str, size_t len)
{ return assign(str.data(), len); }
wxString& assign(const wxWCharBuffer& str, size_t len)
{ return assign(str.data(), len); }
// same as `= n copies of ch'
wxString& assign(size_t n, wxUniChar ch)
{
#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)
{ 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 wxCharBuffer& str) const
{ return compare(str.data()); }
int compare(const wxWCharBuffer& 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(begin() + 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)
{
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)
{ m_impl.insert(PosToImpl(nPos), ImplStr(sz)); return *this; }
wxString& insert(size_t nPos, const wchar_t *sz)
{ m_impl.insert(PosToImpl(nPos), ImplStr(sz)); return *this; }
wxString& insert(size_t nPos, const char *sz, size_t 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)
{
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)
{
#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)
{
#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)
{ 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)
{
#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)
{
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)
{ return iterator(this, m_impl.erase(first.impl(), last.impl())); }
iterator erase(iterator first)
{ return iterator(this, m_impl.erase(first.impl())); }
#ifdef wxSTRING_BASE_HASNT_CLEAR
void clear() { erase(); }
#else
void clear() { m_impl.clear(); }
#endif
// replaces the substring of length nLen starting at nStart
wxString& replace(size_t nStart, size_t nLen, const char* sz)
{
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)
{
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)
{
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)
{
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)
{
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)
{
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)
{
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)
{
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)
{ m_impl.replace(first.impl(), last.impl(), ImplStr(s)); return *this; }
wxString& replace(iterator first, iterator last, const wchar_t* s)
{ m_impl.replace(first.impl(), last.impl(), ImplStr(s)); return *this; }
wxString& replace(iterator first, iterator last, const char* s, size_type n)
{
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)
{
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)
{ m_impl.replace(first.impl(), last.impl(), s.m_impl); return *this; }
wxString& replace(iterator first, iterator last, size_type n, wxUniChar ch)
{
#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)
{
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)
{ 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 wxCharBuffer& s, size_t nStart = 0, size_t n = npos) const
{ return find(s.data(), nStart, n); }
size_t find(const wxWCharBuffer& 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 occurence of character ch after nStart
size_t find(wxUniChar ch, size_t nStart = 0) const
{
return PosFromImpl(m_impl.find(wxStringOperations::EncodeChar(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 wxCharBuffer& s, size_t nStart = npos, size_t n = npos) const
{ return rfind(s.data(), nStart, n); }
size_t rfind(const wxWCharBuffer& 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
{
return PosFromImpl(m_impl.rfind(wxStringOperations::EncodeChar(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 occurence 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 occurence 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 wxCharBuffer& sz, size_t nStart = 0) const
{ return find_first_of(sz.data(), nStart); }
size_t find_first_of(const wxWCharBuffer& 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 wxCharBuffer& sz, size_t nStart, size_t n) const
{ return find_first_of(sz.data(), nStart, n); }
size_t find_first_of(const wxWCharBuffer& 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 wxCharBuffer& sz, size_t nStart = 0) const
{ return find_last_of(sz.data(), nStart); }
size_t find_last_of(const wxWCharBuffer& 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 wxCharBuffer& sz, size_t nStart, size_t n) const
{ return find_last_of(sz.data(), nStart, n); }
size_t find_last_of(const wxWCharBuffer& 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 wxCharBuffer& sz, size_t nStart = 0) const
{ return find_first_not_of(sz.data(), nStart); }
size_t find_first_not_of(const wxWCharBuffer& 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 wxCharBuffer& sz, size_t nStart, size_t n) const
{ return find_first_not_of(sz.data(), nStart, n); }
size_t find_first_not_of(const wxWCharBuffer& 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 wxCharBuffer& sz, size_t nStart = 0) const
{ return find_last_not_of(sz.data(), nStart); }
size_t find_last_not_of(const wxWCharBuffer& 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 wxCharBuffer& sz, size_t nStart, size_t n) const
{ return find_last_not_of(sz.data(), nStart, n); }
size_t find_last_not_of(const wxWCharBuffer& sz, size_t nStart, size_t n) const
{ return find_last_not_of(sz.data(), nStart, n); }
// string += string
wxString& operator+=(const wxString& s)
{ m_impl += s.m_impl; return *this; }
// string += C string
wxString& operator+=(const char *psz)
{ m_impl += ImplStr(psz); return *this; }
wxString& operator+=(const wchar_t *pwz)
{ m_impl += ImplStr(pwz); return *this; }
wxString& operator+=(const wxCStrData& s)
{ m_impl += s.AsString().m_impl; return *this; }
wxString& operator+=(const wxCharBuffer& s)
{ return operator+=(s.data()); }
wxString& operator+=(const wxWCharBuffer& s)
{ return operator+=(s.data()); }
// string += char
wxString& operator+=(wxUniChar ch)
{ m_impl += wxStringOperations::EncodeChar(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()
{ m_impl.DoUngetWriteBuf(); }
void DoUngetWriteBuf(size_t 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():
// FIXME-UTF8: bechmark various approaches to keeping compatibility buffers
template<typename T>
struct ConvertedBuffer
{
ConvertedBuffer() : m_buf(NULL) {}
~ConvertedBuffer()
{ free(m_buf); }
operator T*() const { return m_buf; }
ConvertedBuffer& operator=(T *str)
{
free(m_buf);
m_buf = str;
return *this;
}
T *m_buf;
};
#if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
ConvertedBuffer<char> m_convertedToChar;
#endif
#if !wxUSE_UNICODE_WCHAR
ConvertedBuffer<wchar_t> m_convertedToWChar;
#endif
friend class WXDLLIMPEXP_BASE wxCStrData;
friend class wxImplStringBuffer;
friend class wxImplStringBufferLength;
};
#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
#pragma warning (default:4275)
#endif
// string iterator operators that satisfy STL Random Access Iterator
// requirements:
inline wxString::iterator operator+(int n, wxString::iterator i)
{ return i + n; }
inline wxString::iterator operator+(size_t n, wxString::iterator i)
{ return i + n; }
inline wxString::const_iterator operator+(int n, wxString::const_iterator i)
{ return i + n; }
inline wxString::const_iterator operator+(size_t n, wxString::const_iterator i)
{ return i + n; }
inline wxString::reverse_iterator operator+(int n, wxString::reverse_iterator i)
{ return i + n; }
inline wxString::reverse_iterator operator+(size_t n, wxString::reverse_iterator i)
{ return i + n; }
inline wxString::const_reverse_iterator operator+(int n, wxString::const_reverse_iterator i)
{ return i + n; }
inline wxString::const_reverse_iterator operator+(size_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; }
#if wxUSE_STL_BASED_WXSTRING
// return an empty wxString (not very useful with wxUSE_STL == 1)
inline const wxString wxGetEmptyString() { return wxString(); }
#else // !wxUSE_STL_BASED_WXSTRING
// return an empty wxString (more efficient than wxString() here)
inline const wxString& wxGetEmptyString()
{
return *(wxString *)&wxEmptyString;
}
#endif // wxUSE_STL_BASED_WXSTRING/!wxUSE_STL_BASED_WXSTRING
// ----------------------------------------------------------------------------
// 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 wxImplStringBuffer
{
public:
typedef wxStringCharType CharType;
wxImplStringBuffer(wxString& str, size_t lenWanted = 1024)
: m_str(str), m_buf(NULL)
{ m_buf = m_str.DoGetWriteBuf(lenWanted); }
~wxImplStringBuffer() { m_str.DoUngetWriteBuf(); }
operator wxStringCharType*() const { return m_buf; }
private:
wxString& m_str;
wxStringCharType *m_buf;
DECLARE_NO_COPY_CLASS(wxImplStringBuffer)
};
class wxImplStringBufferLength
{
public:
typedef wxStringCharType CharType;
wxImplStringBufferLength(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);
}
~wxImplStringBufferLength()
{
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;
DECLARE_NO_COPY_CLASS(wxImplStringBufferLength)
};
#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)
{ }
operator CharType*() { return m_buf.data(); }
protected:
wxString& m_str;
wxCharTypeBuffer<CharType> m_buf;
};
template<typename T>
class wxStringTypeBufferLengthBase
{
public:
typedef T CharType;
wxStringTypeBufferLengthBase(wxString& str, size_t lenWanted = 1024)
: m_str(str), m_buf(lenWanted), m_len(0), m_lenSet(false)
{ }
~wxStringTypeBufferLengthBase()
{
wxASSERT(m_lenSet);
m_str.assign(m_buf.data(), m_len);
}
operator CharType*() { return m_buf.data(); }
void SetLength(size_t length) { m_len = length; m_lenSet = true; }
protected:
wxString& m_str;
wxCharTypeBuffer<CharType> m_buf;
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());
}
DECLARE_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()
{
wxASSERT(this->m_lenSet);
this->m_str.assign(this->m_buf.data(), this->m_len);
}
DECLARE_NO_COPY_CLASS(wxStringTypeBufferLength)
};
#if wxUSE_STL_BASED_WXSTRING
class wxImplStringBuffer : public wxStringTypeBufferBase<wxStringCharType>
{
public:
wxImplStringBuffer(wxString& str, size_t lenWanted = 1024)
: wxStringTypeBufferBase<wxStringCharType>(str, lenWanted) {}
~wxImplStringBuffer()
{ m_str.m_impl.assign(m_buf.data()); }
DECLARE_NO_COPY_CLASS(wxImplStringBuffer)
};
class wxImplStringBufferLength : public wxStringTypeBufferLengthBase<wxStringCharType>
{
public:
wxImplStringBufferLength(wxString& str, size_t lenWanted = 1024)
: wxStringTypeBufferLengthBase<wxStringCharType>(str, lenWanted) {}
~wxImplStringBufferLength()
{
wxASSERT(m_lenSet);
m_str.m_impl.assign(m_buf.data(), m_len);
}
DECLARE_NO_COPY_CLASS(wxImplStringBufferLength)
};
#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 wxImplStringBuffer wxStringBuffer;
typedef wxImplStringBufferLength wxStringBufferLength;
#endif // !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
// ---------------------------------------------------------------------------
// 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
// note that there is an optimization in operator==() and !=(): we (quickly)
// checks the strings length first, before comparing their data
inline bool operator==(const wxString& s1, const wxString& s2)
{ return (s1.Len() == s2.Len()) && (s1.Cmp(s2) == 0); }
inline bool operator!=(const wxString& s1, const wxString& s2)
{ return (s1.Len() != s2.Len()) || (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 wxString& s2)
{ return s1.Cmp(s2) >= 0; }
#if wxUSE_UNICODE
inline bool operator==(const wxString& s1, const wxWCharBuffer& s2)
{ return (s1.Cmp((const wchar_t *)s2) == 0); }
inline bool operator==(const wxWCharBuffer& s1, const wxString& s2)
{ return (s2.Cmp((const wchar_t *)s1) == 0); }
inline bool operator!=(const wxString& s1, const wxWCharBuffer& s2)
{ return (s1.Cmp((const wchar_t *)s2) != 0); }
inline bool operator!=(const wxWCharBuffer& s1, const wxString& s2)
{ return (s2.Cmp((const wchar_t *)s1) != 0); }
#else // !wxUSE_UNICODE
inline bool operator==(const wxString& s1, const wxCharBuffer& s2)
{ return (s1.Cmp((const char *)s2) == 0); }
inline bool operator==(const wxCharBuffer& s1, const wxString& s2)
{ return (s2.Cmp((const char *)s1) == 0); }
inline bool operator!=(const wxString& s1, const wxCharBuffer& s2)
{ return (s1.Cmp((const char *)s2) != 0); }
inline bool operator!=(const wxCharBuffer& s1, const wxString& s2)
{ return (s2.Cmp((const char *)s1) != 0); }
#endif // wxUSE_UNICODE/!wxUSE_UNICODE
#if wxUSE_UNICODE
inline wxString operator+(const wxString& string, const wxWCharBuffer& buf)
{ return string + (const wchar_t *)buf; }
inline wxString operator+(const wxWCharBuffer& buf, const wxString& string)
{ return (const wchar_t *)buf + string; }
#else // !wxUSE_UNICODE
inline wxString operator+(const wxString& string, const wxCharBuffer& buf)
{ return string + (const char *)buf; }
inline wxString operator+(const wxCharBuffer& buf, const wxString& string)
{ return (const char *)buf + string; }
#endif // wxUSE_UNICODE/!wxUSE_UNICODE
// 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); }
// 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()
wxDEFINE_ALL_COMPARISONS(const wchar_t *, const wxCStrData&, wxCMP_WCHAR_CSTRDATA)
wxDEFINE_ALL_COMPARISONS(const char *, const wxCStrData&, wxCMP_CHAR_CSTRDATA)
#undef wxCMP_CHAR_CSTRDATA
#undef wxCMP_WCHAR_CSTRDATA
// ---------------------------------------------------------------------------
// Implementation only from here until the end of file
// ---------------------------------------------------------------------------
#if wxUSE_STD_IOSTREAM
#include "wx/iosfwrap.h"
WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxString&);
WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxCStrData&);
WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxCharBuffer&);
#ifndef __BORLANDC__
WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxWCharBuffer&);
#endif
#endif // wxSTD_STRING_COMPATIBILITY
// ---------------------------------------------------------------------------
// wxCStrData implementation
// ---------------------------------------------------------------------------
inline wxCStrData::wxCStrData(char *buf)
: m_str(new wxString(buf)), m_offset(0), m_owned(true) {}
inline wxCStrData::wxCStrData(wchar_t *buf)
: m_str(new wxString(buf)), m_offset(0), m_owned(true) {}
inline wxCStrData::wxCStrData(const wxCStrData& data)
: m_str(data.m_owned ? new wxString(*data.m_str) : data.m_str),
m_offset(data.m_offset),
m_owned(data.m_owned)
{
}
inline wxCStrData::~wxCStrData()
{
if ( m_owned )
delete m_str;
}
// simple cases for AsChar() and AsWChar(), the complicated ones are
// in string.cpp
#if wxUSE_UNICODE_WCHAR
inline const wchar_t* wxCStrData::AsWChar() const
{
return m_str->wx_str() + m_offset;
}
#endif // wxUSE_UNICODE_WCHAR
#if !wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY
inline const char* wxCStrData::AsChar() const
{
return wxStringOperations::AddToIter(m_str->wx_str(), m_offset);
}
#endif // !wxUSE_UNICODE
inline const wxCharBuffer wxCStrData::AsCharBuf() const
{
#if !wxUSE_UNICODE
return wxCharBuffer::CreateNonOwned(AsChar());
#else
return AsString().mb_str();
#endif
}
inline const wxWCharBuffer wxCStrData::AsWCharBuf() const
{
#if wxUSE_UNICODE_WCHAR
return wxWCharBuffer::CreateNonOwned(AsWChar());
#else
return AsString().wc_str();
#endif
}
inline wxString wxCStrData::AsString() const
{
if ( m_offset == 0 )
return *m_str;
else
return m_str->Mid(m_offset);
}
inline const wxStringCharType *wxCStrData::AsInternal() const
{
return wxStringOperations::AddToIter(m_str->wx_str(), m_offset);
}
inline wxUniChar wxCStrData::operator*() const
{
if ( m_str->empty() )
return wxUniChar(_T('\0'));
else
return (*m_str)[m_offset];
}
inline wxUniChar wxCStrData::operator[](size_t n) const
{
// NB: we intentionally use operator[] and not at() here because the former
// works for the terminating NUL while the latter does not
return (*m_str)[m_offset + n];
}
// ----------------------------------------------------------------------------
// more wxCStrData operators
// ----------------------------------------------------------------------------
// we need to define those to allow "size_t pos = p - s.c_str()" where p is
// some pointer into the string
inline size_t operator-(const char *p, const wxCStrData& cs)
{
return p - cs.AsChar();
}
inline size_t operator-(const wchar_t *p, const wxCStrData& cs)
{
return p - cs.AsWChar();
}
// ----------------------------------------------------------------------------
// implementation of wx[W]CharBuffer inline methods using wxCStrData
// ----------------------------------------------------------------------------
// FIXME-UTF8: move this to buffer.h
inline wxCharBuffer::wxCharBuffer(const wxCStrData& cstr)
: wxCharTypeBufferBase(cstr.AsCharBuf())
{
}
inline wxWCharBuffer::wxWCharBuffer(const wxCStrData& cstr)
: wxCharTypeBufferBase(cstr.AsWCharBuf())
{
}
#if WXWIN_COMPATIBILITY_2_8
// lot of code out there doesn't explicitly include wx/wxchar.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/wxchar.h"
#endif
#endif // _WX_WXSTRING_H_
Reference in New Issue View Git Blame Copy Permalink