/////////////////////////////////////////////////////////////////////////////// // Name: wx/string.h // Purpose: wxString class // Author: Vadim Zeitlin // Modified by: // Created: 29/01/98 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin // 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 #ifndef __WXPALMOS5__ #if defined(__WXMAC__) || defined(__VISAGECPP__) #include #endif #if defined(__VISAGECPP__) && __IBMCPP__ >= 400 // problem in VACPP V4 with including stdlib.h multiple times // strconv includes it anyway # include # include # include # include #else # include # include # include # include # include #endif #ifdef HAVE_STRCASECMP_IN_STRINGS_H #include // for strcasecmp() #endif // HAVE_STRCASECMP_IN_STRINGS_H #endif // ! __WXPALMOS5__ #include "wx/wxcrtbase.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_FWD_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(__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 " 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() + (p2 - p1)" (it also works for any integer // expression but it must be ptrdiff_t and not e.g. int to work in this // example): wxCStrData operator-(ptrdiff_t n) const { wxASSERT_MSG( n <= (ptrdiff_t)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_FWD_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 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::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. We can't move // it to wxStrig, because it would shadow these versions of Format() then. template inline static typename StringReturnType::type Format(const T& fmt) { // NB: this doesn't compile if T is not (some form of) a string; // this makes Format's prototype equivalent to // Format(const wxFormatString& fmt) return DoFormatWchar(wxFormatString(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 #if wxUSE_UNICODE_UTF8 // see the comment near wxString::iterator for why we need this class WXDLLIMPEXP_BASE wxStringIteratorNode { public: wxStringIteratorNode() : m_str(NULL), m_citer(NULL), m_iter(NULL), m_prev(NULL), m_next(NULL) {} wxStringIteratorNode(const wxString *str, wxStringImpl::const_iterator *citer) { DoSet(str, citer, NULL); } wxStringIteratorNode(const wxString *str, wxStringImpl::iterator *iter) { DoSet(str, NULL, iter); } ~wxStringIteratorNode() { clear(); } inline void set(const wxString *str, wxStringImpl::const_iterator *citer) { clear(); DoSet(str, citer, NULL); } inline void set(const wxString *str, wxStringImpl::iterator *iter) { clear(); DoSet(str, NULL, iter); } const wxString *m_str; wxStringImpl::const_iterator *m_citer; wxStringImpl::iterator *m_iter; wxStringIteratorNode *m_prev, *m_next; private: inline void clear(); inline void DoSet(const wxString *str, wxStringImpl::const_iterator *citer, wxStringImpl::iterator *iter); // the node belongs to a particular iterator instance, it's not copied // when a copy of the iterator is made DECLARE_NO_COPY_CLASS(wxStringIteratorNode) }; #endif // wxUSE_UNICODE_UTF8 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 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 SubstrBufFromWC; typedef SubstrBufFromType SubstrBufFromMB; #elif wxUSE_UNICODE_WCHAR typedef SubstrBufFromType SubstrBufFromWC; typedef SubstrBufFromType SubstrBufFromMB; #else typedef SubstrBufFromType SubstrBufFromMB; typedef SubstrBufFromType 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(this, m_impl.begin() + pos) - begin(); } #endif // !wxUSE_UNICODE_UTF8/wxUSE_UNICODE_UTF8 public: // standard types typedef wxUniChar value_type; typedef wxUniChar char_type; typedef wxUniCharRef reference; typedef wxChar* pointer; typedef const wxChar* const_pointer; typedef size_t size_type; typedef wxUniChar const_reference; #if wxUSE_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) \ 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[](size_t n) const { return *(*this + n); } \ \ iterator_name& operator++() \ { wxStringOperations::IncIter(m_cur); return *this; } \ iterator_name& operator--() \ { wxStringOperations::DecIter(m_cur); return *this; } \ iterator_name operator++(int) \ { \ iterator_name tmp = *this; \ wxStringOperations::IncIter(m_cur); \ return tmp; \ } \ iterator_name operator--(int) \ { \ iterator_name tmp = *this; \ wxStringOperations::DecIter(m_cur); \ return tmp; \ } \ \ iterator_name& operator+=(ptrdiff_t n) \ { \ m_cur = wxStringOperations::AddToIter(m_cur, n); \ return *this; \ } \ iterator_name& operator-=(ptrdiff_t n) \ { \ m_cur = wxStringOperations::AddToIter(m_cur, -n); \ return *this; \ } \ \ difference_type operator-(const iterator_name& i) const \ { return wxStringOperations::DiffIters(m_cur, i.m_cur); } \ \ bool operator==(const iterator_name& i) const \ { return m_cur == i.m_cur; } \ bool operator!=(const iterator_name& i) const \ { return m_cur != i.m_cur; } \ \ bool operator<(const iterator_name& i) const \ { return m_cur < i.m_cur; } \ bool operator>(const iterator_name& i) const \ { return m_cur > i.m_cur; } \ bool operator<=(const iterator_name& i) const \ { return m_cur <= i.m_cur; } \ bool operator>=(const iterator_name& i) const \ { return m_cur >= i.m_cur; } \ \ private: \ /* for internal wxString use only: */ \ underlying_iterator impl() const { return m_cur; } \ \ friend class wxString; \ friend class wxCStrData; \ \ private: \ underlying_iterator m_cur class WXDLLIMPEXP_FWD_BASE const_iterator; #if wxUSE_UNICODE_UTF8 // NB: In UTF-8 build, (non-const) iterator needs to keep reference // to the underlying wxStringImpl, because UTF-8 is variable-length // encoding and changing the value pointer to by an iterator (using // its operator*) requires calling wxStringImpl::replace() if the old // and new values differ in their encoding's length. // // Furthermore, the replace() call may invalid all iterators for the // string, so we have to keep track of outstanding iterators and update // them if replace() happens. // // This is implemented by maintaining linked list of iterators for every // string and traversing it in wxUniCharRef::operator=(). Head of the // list is stored in wxString. (FIXME-UTF8) class WXDLLIMPEXP_BASE iterator { WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef); public: iterator() {} iterator(const iterator& i) : m_cur(i.m_cur), m_node(i.str(), &m_cur) {} iterator& operator=(const iterator& i) { if (&i != this) { m_cur = i.m_cur; m_node.set(i.str(), &m_cur); } return *this; } reference operator*() { return wxUniCharRef::CreateForString(m_node, m_cur); } iterator operator+(ptrdiff_t n) const { return iterator(str(), wxStringOperations::AddToIter(m_cur, n)); } iterator operator-(ptrdiff_t n) const { return iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); } private: iterator(wxString *str, underlying_iterator ptr) : m_cur(ptr), m_node(str, &m_cur) {} wxString* str() const { return wx_const_cast(wxString*, m_node.m_str); } wxStringIteratorNode m_node; friend class const_iterator; }; class WXDLLIMPEXP_BASE const_iterator { // NB: reference_type is intentionally value, not reference, the character // may be encoded differently in wxString data: WX_STR_ITERATOR_IMPL(const_iterator, const wxChar*, wxUniChar); public: const_iterator() {} const_iterator(const const_iterator& i) : m_cur(i.m_cur), m_node(i.str(), &m_cur) {} const_iterator(const iterator& i) : m_cur(i.m_cur), m_node(i.str(), &m_cur) {} const_iterator& operator=(const const_iterator& i) { if (&i != this) { m_cur = i.m_cur; m_node.set(i.str(), &m_cur); } return *this; } const_iterator& operator=(const iterator& i) { m_cur = i.m_cur; m_node.set(i.str(), &m_cur); return *this; } reference operator*() const { return wxStringOperations::DecodeChar(m_cur); } const_iterator operator+(ptrdiff_t n) const { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, n)); } const_iterator operator-(ptrdiff_t n) const { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); } private: // for internal wxString use only: const_iterator(const wxString *str, underlying_iterator ptr) : m_cur(ptr), m_node(str, &m_cur) {} const wxString* str() const { return m_node.m_str; } wxStringIteratorNode m_node; }; size_t IterToImplPos(wxString::iterator i) const { return wxStringImpl::const_iterator(i.impl()) - m_impl.begin(); } #else // !wxUSE_UNICODE_UTF8 class WXDLLIMPEXP_BASE iterator { WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef); public: iterator() {} iterator(const iterator& i) : m_cur(i.m_cur) {} reference operator*() { return wxUniCharRef::CreateForString(m_cur); } iterator operator+(ptrdiff_t n) const { return iterator(wxStringOperations::AddToIter(m_cur, n)); } iterator operator-(ptrdiff_t n) const { return iterator(wxStringOperations::AddToIter(m_cur, -n)); } private: // for internal wxString use only: iterator(underlying_iterator ptr) : m_cur(ptr) {} iterator(wxString *WXUNUSED(str), underlying_iterator ptr) : m_cur(ptr) {} friend class const_iterator; }; class WXDLLIMPEXP_BASE const_iterator { // NB: reference_type is intentionally value, not reference, the character // may be encoded differently in wxString data: WX_STR_ITERATOR_IMPL(const_iterator, const wxChar*, wxUniChar); public: const_iterator() {} const_iterator(const const_iterator& i) : m_cur(i.m_cur) {} const_iterator(const iterator& i) : m_cur(i.m_cur) {} reference operator*() const { return wxStringOperations::DecodeChar(m_cur); } const_iterator operator+(ptrdiff_t n) const { return const_iterator(wxStringOperations::AddToIter(m_cur, n)); } const_iterator operator-(ptrdiff_t n) const { return const_iterator(wxStringOperations::AddToIter(m_cur, -n)); } private: // for internal wxString use only: const_iterator(underlying_iterator ptr) : m_cur(ptr) {} const_iterator(const wxString *WXUNUSED(str), underlying_iterator ptr) : m_cur(ptr) {} }; #endif // wxUSE_UNICODE_UTF8/!wxUSE_UNICODE_UTF8 #undef WX_STR_ITERATOR_TAG #undef WX_STR_ITERATOR_IMPL friend class iterator; friend class const_iterator; template 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() {} 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 in the functions below is to keep BCC 5.5 happy reverse_iterator_impl operator+(ptrdiff_t n) const { return reverse_iterator_impl(m_cur - n); } reverse_iterator_impl operator-(ptrdiff_t n) const { return reverse_iterator_impl(m_cur + n); } reverse_iterator_impl operator+=(ptrdiff_t n) { m_cur -= n; return *this; } reverse_iterator_impl operator-=(ptrdiff_t n) { m_cur += n; return *this; } unsigned operator-(const reverse_iterator_impl& i) const { return i.m_cur - m_cur; } bool operator==(const reverse_iterator_impl& ri) const { return m_cur == ri.m_cur; } bool operator!=(const reverse_iterator_impl& ri) const { return !(*this == ri); } bool operator<(const reverse_iterator_impl& i) const { return m_cur > i.m_cur; } bool operator>(const reverse_iterator_impl& i) const { return m_cur < i.m_cur; } bool operator<=(const reverse_iterator_impl& i) const { return m_cur >= i.m_cur; } bool operator>=(const reverse_iterator_impl& i) const { return m_cur <= i.m_cur; } private: iterator_type m_cur; }; typedef reverse_iterator_impl reverse_iterator; typedef reverse_iterator_impl const_reverse_iterator; private: // used to transform an expression built using c_str() (and hence of type // wxCStrData) to an iterator into the string static const_iterator CreateConstIterator(const wxCStrData& data) { return const_iterator(data.m_str, (data.m_str->begin() + data.m_offset).impl()); } // in UTF-8 STL build, creation from std::string requires conversion under // non-UTF8 locales, so we can't have and use wxString(wxStringImpl) ctor; // instead we define dummy type that lets us have wxString ctor for creation // from wxStringImpl that couldn't be used by user code (in all other builds, // "standard" ctors can be used): #if wxUSE_UNICODE_UTF8 && wxUSE_STL_BASED_WXSTRING struct CtorFromStringImplTag {}; wxString(CtorFromStringImplTag* WXUNUSED(dummy), const wxStringImpl& src) : m_impl(src) {} static wxString FromImpl(const wxStringImpl& src) { return wxString((CtorFromStringImplTag*)NULL, src); } #else #if !wxUSE_STL_BASED_WXSTRING wxString(const wxStringImpl& src) : m_impl(src) { } // else: already defined as wxString(wxStdString) below #endif static wxString FromImpl(const wxStringImpl& src) { return wxString(src); } #endif public: // constructors and destructor // ctor for an empty string wxString() {} // copy ctor wxString(const wxString& stringSrc) : m_impl(stringSrc.m_impl) { } // string containing nRepeat copies of ch wxString(wxUniChar ch, size_t nRepeat = 1 ) { assign(nRepeat, ch); } wxString(size_t nRepeat, wxUniChar ch) { assign(nRepeat, ch); } wxString(wxUniCharRef ch, size_t nRepeat = 1) { assign(nRepeat, ch); } wxString(size_t nRepeat, wxUniCharRef ch) { assign(nRepeat, ch); } wxString(char ch, size_t nRepeat = 1) { assign(nRepeat, ch); } wxString(size_t nRepeat, char ch) { assign(nRepeat, ch); } wxString(wchar_t ch, size_t nRepeat = 1) { assign(nRepeat, ch); } wxString(size_t nRepeat, wchar_t ch) { assign(nRepeat, ch); } // ctors from char* strings: wxString(const char *psz) : m_impl(ImplStr(psz)) {} wxString(const char *psz, const wxMBConv& conv) : m_impl(ImplStr(psz, conv)) {} wxString(const char *psz, size_t nLength) { assign(psz, nLength); } wxString(const char *psz, const wxMBConv& conv, size_t nLength) { SubstrBufFromMB str(ImplStr(psz, nLength, conv)); m_impl.assign(str.data, str.len); } // and unsigned char*: wxString(const unsigned char *psz) : m_impl(ImplStr((const char*)psz)) {} wxString(const unsigned char *psz, const wxMBConv& conv) : m_impl(ImplStr((const char*)psz, conv)) {} wxString(const unsigned char *psz, size_t nLength) { assign((const char*)psz, nLength); } wxString(const unsigned char *psz, const wxMBConv& conv, size_t nLength) { SubstrBufFromMB str(ImplStr((const char*)psz, nLength, conv)); m_impl.assign(str.data, str.len); } // ctors from wchar_t* strings: wxString(const wchar_t *pwz) : m_impl(ImplStr(pwz)) {} wxString(const wchar_t *pwz, const wxMBConv& WXUNUSED(conv)) : m_impl(ImplStr(pwz)) {} wxString(const wchar_t *pwz, size_t nLength) { assign(pwz, nLength); } wxString(const wchar_t *pwz, const wxMBConv& WXUNUSED(conv), size_t nLength) { assign(pwz, nLength); } wxString(const 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 #endif // wxUSE_STD_STRING // Unlike ctor from std::string, we provide conversion to std::string only // if wxUSE_STL and not merely wxUSE_STD_STRING (which is on by default), // because it conflicts with operator const char/wchar_t*: #if wxUSE_STL #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(this, m_impl.begin()); } iterator begin() { return iterator(this, m_impl.begin()); } // position one after the last valid one const_iterator end() const { return const_iterator(this, m_impl.end()); } iterator end() { return iterator(this, m_impl.end()); } // first element of the reversed string const_reverse_iterator rbegin() const { return const_reverse_iterator(end()); } reverse_iterator rbegin() { return reverse_iterator(end()); } // one beyond the end of the reversed string const_reverse_iterator rend() const { return const_reverse_iterator(begin()); } reverse_iterator rend() { return reverse_iterator(begin()); } // std::string methods: #if wxUSE_UNICODE_UTF8 size_t length() const { 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')) { const size_t len = length(); if ( nSize == len) return; #if wxUSE_UNICODE_UTF8 if ( nSize < len ) { // we can't use wxStringImpl::resize() for truncating the string as it // counts in bytes, not characters erase(nSize); return; } // we also can't use (presumably more efficient) resize() if we have to // append characters taking more than one byte if ( !ch.IsAscii() ) append(nSize - len, ch); else #endif // wxUSE_UNICODE_UTF8 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(); } // the first two operators conflict with operators for conversion to // std::string and they must be disabled in STL build; the next one only // makes sense if conversions to char* are also defined and not defining it // in STL build also helps us to get more clear error messages for the code // which relies on implicit conversion to char* in STL build #if !wxUSE_STL operator const char*() const { return c_str(); } operator const wchar_t*() const { return c_str(); } // implicit conversion to untyped pointer for compatibility with previous // wxWidgets versions: this is the same as conversion to const char * so it // may fail! operator const void*() const { return c_str(); } #endif // wxUSE_STL // identical to c_str(), for MFC compatibility const wxCStrData GetData() const { return c_str(); } // explicit conversion to C string in internal representation (char*, // wchar_t*, UTF-8-encoded char*, depending on the build): const wxStringCharType *wx_str() const { return m_impl.c_str(); } // conversion to *non-const* multibyte or widestring buffer; modifying // returned buffer won't affect the string, these methods are only useful // for passing values to const-incorrect functions wxWritableCharBuffer char_str(const wxMBConv& conv = wxConvLibc) const { return mb_str(conv); } wxWritableWCharBuffer wchar_str() const { return wc_str(); } // conversion to/from plain (i.e. 7 bit) ASCII: this is useful for // converting numbers or strings which are certain not to contain special // chars (typically system functions, X atoms, environment variables etc.) // // the behaviour of these functions with the strings containing anything // else than 7 bit ASCII characters is undefined, use at your own risk. #if wxUSE_UNICODE static wxString FromAscii(const char *ascii, size_t len); static wxString FromAscii(const char *ascii); static wxString FromAscii(char ascii); const wxCharBuffer ToAscii() const; #else // ANSI static wxString FromAscii(const char *ascii) { return wxString( ascii ); } static wxString FromAscii(const char *ascii, size_t len) { return wxString( ascii, len ); } static wxString FromAscii(char ascii) { return wxString( ascii ); } const char *ToAscii() const { return c_str(); } #endif // Unicode/!Unicode // also provide unsigned char overloads as signed/unsigned doesn't matter // for 7 bit ASCII characters static wxString FromAscii(const unsigned char *ascii) { return FromAscii((const char *)ascii); } static wxString FromAscii(const unsigned char *ascii, size_t len) { return FromAscii((const char *)ascii, len); } // conversion to/from UTF-8: #if wxUSE_UNICODE_UTF8 static wxString FromUTF8(const char *utf8) { if ( !utf8 ) return wxEmptyString; wxASSERT( wxStringOperations::IsValidUtf8String(utf8) ); return FromImpl(wxStringImpl(utf8)); } static wxString FromUTF8(const char *utf8, size_t len) { if ( !utf8 ) return wxEmptyString; if ( len == npos ) return FromUTF8(utf8); 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 const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLibc ) ); } #endif // Unicode/ANSI // overloaded assignment // from another wxString wxString& operator=(const wxString& stringSrc) { if (&stringSrc != this) m_impl = stringSrc.m_impl; return *this; } wxString& operator=(const wxCStrData& cstr) { return *this = cstr.AsString(); } // from a character wxString& operator=(wxUniChar ch) { #if wxUSE_UNICODE_UTF8 if ( !ch.IsAscii() ) m_impl = wxStringOperations::EncodeChar(ch); else #endif m_impl = (wxStringCharType)ch; return *this; } wxString& operator=(wxUniCharRef ch) { return 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 { #if !wxUSE_UNICODE_UTF8 // in UTF-8 build, length() is O(n) and doing this would be _slower_ if ( length() != str.length() ) return false; #endif return (compareWithCase ? Cmp(str) : CmpNoCase(str)) == 0; } bool IsSameAs(const char *str, bool compareWithCase = true) const { return (compareWithCase ? Cmp(str) : CmpNoCase(str)) == 0; } bool IsSameAs(const wchar_t *str, bool compareWithCase = true) const { return (compareWithCase ? Cmp(str) : CmpNoCase(str)) == 0; } bool IsSameAs(const wxCStrData& str, bool compareWithCase = true) const { return IsSameAs(str.AsString(), compareWithCase); } bool IsSameAs(const 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; // 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 { #if wxUSE_UNICODE_UTF8 if ( !ch.IsAscii() ) return PosFromImpl(m_impl.find(wxStringOperations::EncodeChar(ch), PosToImpl(nStart))); else #endif return PosFromImpl(m_impl.find((wxStringCharType)ch, PosToImpl(nStart))); } size_t find(wxUniCharRef ch, size_t nStart = 0) const { return find(wxUniChar(ch), nStart); } size_t find(char ch, size_t nStart = 0) const { return find(wxUniChar(ch), nStart); } size_t find(unsigned char ch, size_t nStart = 0) const { return find(wxUniChar(ch), nStart); } size_t find(wchar_t ch, size_t nStart = 0) const { return find(wxUniChar(ch), nStart); } // rfind() family is exactly like find() but works right to left // as find, but from the end size_t rfind(const wxString& str, size_t nStart = npos) const { return PosFromImpl(m_impl.rfind(str.m_impl, PosToImpl(nStart))); } // as find, but from the end size_t rfind(const char* sz, size_t nStart = npos, size_t n = npos) const { SubstrBufFromMB str(ImplStr(sz, n)); return PosFromImpl(m_impl.rfind(str.data, PosToImpl(nStart), str.len)); } size_t rfind(const wchar_t* sz, size_t nStart = npos, size_t n = npos) const { SubstrBufFromWC str(ImplStr(sz, n)); return PosFromImpl(m_impl.rfind(str.data, PosToImpl(nStart), str.len)); } size_t rfind(const 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 { #if wxUSE_UNICODE_UTF8 if ( !ch.IsAscii() ) return PosFromImpl(m_impl.rfind(wxStringOperations::EncodeChar(ch), PosToImpl(nStart))); else #endif return PosFromImpl(m_impl.rfind((wxStringCharType)ch, PosToImpl(nStart))); } size_t rfind(wxUniCharRef ch, size_t nStart = npos) const { return rfind(wxUniChar(ch), nStart); } size_t rfind(char ch, size_t nStart = npos) const { return rfind(wxUniChar(ch), nStart); } size_t rfind(unsigned char ch, size_t nStart = npos) const { return rfind(wxUniChar(ch), nStart); } size_t rfind(wchar_t ch, size_t nStart = npos) const { return rfind(wxUniChar(ch), nStart); } // find first/last 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) { #if wxUSE_UNICODE_UTF8 if ( !ch.IsAscii() ) m_impl += wxStringOperations::EncodeChar(ch); else #endif m_impl += (wxStringCharType)ch; return *this; } wxString& operator+=(wxUniCharRef ch) { return *this += wxUniChar(ch); } wxString& operator+=(int ch) { return *this += wxUniChar(ch); } wxString& operator+=(char ch) { return *this += wxUniChar(ch); } wxString& operator+=(unsigned char ch) { return *this += wxUniChar(ch); } wxString& operator+=(wchar_t ch) { return *this += wxUniChar(ch); } private: #if !wxUSE_STL_BASED_WXSTRING // helpers for wxStringBuffer and wxStringBufferLength wxStringCharType *DoGetWriteBuf(size_t nLen) { return m_impl.DoGetWriteBuf(nLen); } void DoUngetWriteBuf() { 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 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 m_convertedToChar; #endif #if !wxUSE_UNICODE_WCHAR ConvertedBuffer m_convertedToWChar; #endif #if wxUSE_UNICODE_UTF8 // FIXME-UTF8: (try to) move this elsewhere (TLS) or solve differently // assigning to character pointer to by wxString::interator may // change the underlying wxStringImpl iterator, so we have to // keep track of all iterators and update them as necessary: struct wxStringIteratorNodeHead { wxStringIteratorNodeHead() : ptr(NULL) {} wxStringIteratorNode *ptr; // copying is disallowed as it would result in more than one pointer into // the same linked list DECLARE_NO_COPY_CLASS(wxStringIteratorNodeHead) }; wxStringIteratorNodeHead m_iterators; friend class WXDLLIMPEXP_FWD_BASE wxStringIteratorNode; friend class WXDLLIMPEXP_FWD_BASE wxUniCharRef; #endif // wxUSE_UNICODE_UTF8 friend class WXDLLIMPEXP_FWD_BASE wxCStrData; friend class wxStringInternalBuffer; friend class wxStringInternalBufferLength; }; #ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN #pragma warning (default:4275) #endif // string iterator operators that satisfy STL Random Access Iterator // requirements: inline wxString::iterator operator+(ptrdiff_t n, wxString::iterator i) { return i + n; } inline wxString::const_iterator operator+(ptrdiff_t n, wxString::const_iterator i) { return i + n; } inline wxString::reverse_iterator operator+(ptrdiff_t n, wxString::reverse_iterator i) { return i + n; } inline wxString::const_reverse_iterator operator+(ptrdiff_t n, wxString::const_reverse_iterator i) { return i + n; } // notice that even though for many compilers the friend declarations above are // enough, from the point of view of C++ standard we must have the declarations // here as friend ones are not injected in the enclosing namespace and without // them the code fails to compile with conforming compilers such as xlC or g++4 wxString WXDLLIMPEXP_BASE operator+(const wxString& string1, const wxString& string2); wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const char *psz); wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wchar_t *pwz); wxString WXDLLIMPEXP_BASE operator+(const char *psz, const wxString& string); wxString WXDLLIMPEXP_BASE operator+(const wchar_t *pwz, const wxString& string); wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxUniChar ch); wxString WXDLLIMPEXP_BASE operator+(wxUniChar ch, const wxString& string); inline wxString operator+(const wxString& string, wxUniCharRef ch) { return string + (wxUniChar)ch; } inline wxString operator+(const wxString& string, char ch) { return string + wxUniChar(ch); } inline wxString operator+(const wxString& string, wchar_t ch) { return string + wxUniChar(ch); } inline wxString operator+(wxUniCharRef ch, const wxString& string) { return (wxUniChar)ch + string; } inline wxString operator+(char ch, const wxString& string) { return wxUniChar(ch) + string; } inline wxString operator+(wchar_t ch, const wxString& string) { return wxUniChar(ch) + string; } #define wxGetEmptyString() wxString() // ---------------------------------------------------------------------------- // wxStringBuffer: a tiny class allowing to get a writable pointer into string // ---------------------------------------------------------------------------- #if !wxUSE_STL_BASED_WXSTRING // string buffer for direct access to string data in their native // representation: class wxStringInternalBuffer { public: typedef wxStringCharType CharType; wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024) : m_str(str), m_buf(NULL) { m_buf = m_str.DoGetWriteBuf(lenWanted); } ~wxStringInternalBuffer() { m_str.DoUngetWriteBuf(); } operator wxStringCharType*() const { return m_buf; } private: wxString& m_str; wxStringCharType *m_buf; DECLARE_NO_COPY_CLASS(wxStringInternalBuffer) }; class wxStringInternalBufferLength { public: typedef wxStringCharType CharType; wxStringInternalBufferLength(wxString& str, size_t lenWanted = 1024) : m_str(str), m_buf(NULL), m_len(0), m_lenSet(false) { m_buf = m_str.DoGetWriteBuf(lenWanted); wxASSERT(m_buf != NULL); } ~wxStringInternalBufferLength() { wxASSERT(m_lenSet); m_str.DoUngetWriteBuf(m_len); } operator wxStringCharType*() const { return m_buf; } void SetLength(size_t length) { m_len = length; m_lenSet = true; } private: wxString& m_str; wxStringCharType *m_buf; size_t m_len; bool m_lenSet; DECLARE_NO_COPY_CLASS(wxStringInternalBufferLength) }; #endif // !wxUSE_STL_BASED_WXSTRING template class WXDLLIMPEXP_BASE 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 m_buf; }; template class WXDLLIMPEXP_BASE wxStringTypeBufferLengthBase { public: typedef T CharType; wxStringTypeBufferLengthBase(wxString& str, size_t lenWanted = 1024) : m_str(str), m_buf(lenWanted), m_len(0), m_lenSet(false) { } operator CharType*() { return m_buf.data(); } void SetLength(size_t length) { m_len = length; m_lenSet = true; } protected: wxString& m_str; wxCharTypeBuffer m_buf; size_t m_len; bool m_lenSet; }; template class wxStringTypeBuffer : public wxStringTypeBufferBase { public: wxStringTypeBuffer(wxString& str, size_t lenWanted = 1024) : wxStringTypeBufferBase(str, lenWanted) {} ~wxStringTypeBuffer() { this->m_str.assign(this->m_buf.data()); } DECLARE_NO_COPY_CLASS(wxStringTypeBuffer) }; template class wxStringTypeBufferLength : public wxStringTypeBufferLengthBase { public: wxStringTypeBufferLength(wxString& str, size_t lenWanted = 1024) : wxStringTypeBufferLengthBase(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 WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferBase ) class wxStringInternalBuffer : public wxStringTypeBufferBase { public: wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024) : wxStringTypeBufferBase(str, lenWanted) {} ~wxStringInternalBuffer() { m_str.m_impl.assign(m_buf.data()); } DECLARE_NO_COPY_CLASS(wxStringInternalBuffer) }; WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferLengthBase ) class wxStringInternalBufferLength : public wxStringTypeBufferLengthBase { public: wxStringInternalBufferLength(wxString& str, size_t lenWanted = 1024) : wxStringTypeBufferLengthBase(str, lenWanted) {} ~wxStringInternalBufferLength() { wxASSERT(m_lenSet); m_str.m_impl.assign(m_buf.data(), m_len); } DECLARE_NO_COPY_CLASS(wxStringInternalBufferLength) }; #endif // wxUSE_STL_BASED_WXSTRING #if wxUSE_STL_BASED_WXSTRING || wxUSE_UNICODE_UTF8 typedef wxStringTypeBuffer wxStringBuffer; typedef wxStringTypeBufferLength wxStringBufferLength; #else // if !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8 typedef wxStringInternalBuffer wxStringBuffer; typedef wxStringInternalBufferLength wxStringBufferLength; #endif // !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8 #if wxUSE_UNICODE_UTF8 typedef wxStringInternalBuffer wxUTF8StringBuffer; typedef wxStringInternalBufferLength wxUTF8StringBufferLength; #elif wxUSE_UNICODE_WCHAR WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferBase ) class WXDLLIMPEXP_BASE wxUTF8StringBuffer : public wxStringTypeBufferBase { public: wxUTF8StringBuffer(wxString& str, size_t lenWanted = 1024) : wxStringTypeBufferBase(str, lenWanted) {} ~wxUTF8StringBuffer(); DECLARE_NO_COPY_CLASS(wxUTF8StringBuffer) }; WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferLengthBase ) class WXDLLIMPEXP_BASE wxUTF8StringBufferLength : public wxStringTypeBufferLengthBase { public: wxUTF8StringBufferLength(wxString& str, size_t lenWanted = 1024) : wxStringTypeBufferLengthBase(str, lenWanted) {} ~wxUTF8StringBufferLength(); DECLARE_NO_COPY_CLASS(wxUTF8StringBufferLength) }; #endif // wxUSE_UNICODE_UTF8/wxUSE_UNICODE_WCHAR // --------------------------------------------------------------------------- // wxString comparison functions: operator versions are always case sensitive // --------------------------------------------------------------------------- #define wxCMP_WXCHAR_STRING(p, s, op) 0 op s.Cmp(p) wxDEFINE_ALL_COMPARISONS(const wxChar *, const wxString&, wxCMP_WXCHAR_STRING) #undef wxCMP_WXCHAR_STRING inline bool operator==(const wxString& s1, const wxString& s2) { return s1.IsSameAs(s2); } inline bool operator!=(const wxString& s1, const wxString& s2) { return !s1.IsSameAs(s2); } inline bool operator< (const wxString& s1, const wxString& s2) { return s1.Cmp(s2) < 0; } inline bool operator> (const wxString& s1, const wxString& s2) { return s1.Cmp(s2) > 0; } inline bool operator<=(const wxString& s1, const wxString& s2) { return s1.Cmp(s2) <= 0; } inline bool operator>=(const wxString& s1, const wxString& s2) { return s1.Cmp(s2) >= 0; } inline bool operator==(const wxString& s1, const wxCStrData& s2) { return s1 == s2.AsString(); } inline bool operator==(const wxCStrData& s1, const wxString& s2) { return s1.AsString() == s2; } inline bool operator!=(const wxString& s1, const wxCStrData& s2) { return s1 != s2.AsString(); } inline bool operator!=(const wxCStrData& s1, const wxString& s2) { return s1.AsString() != s2; } inline bool operator==(const wxString& s1, const 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); } 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); } 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; } 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; } // 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 #if wxUSE_UNICODE && defined(HAVE_WOSTREAM) WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxString&); WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxCStrData&); WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxWCharBuffer&); #endif // wxUSE_UNICODE && defined(HAVE_WOSTREAM) #endif // wxUSE_STD_IOSTREAM // --------------------------------------------------------------------------- // 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 wx_const_cast(wxString*, m_str); // cast to silence warnings } // 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 inline const char* wxCStrData::AsChar() const { return m_str->wx_str() + m_offset; } #endif // !wxUSE_UNICODE #if wxUSE_UTF8_LOCALE_ONLY inline const char* wxCStrData::AsChar() const { return wxStringOperations::AddToIter(m_str->wx_str(), m_offset); } #endif // wxUSE_UTF8_LOCALE_ONLY 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 { #if wxUSE_UNICODE_UTF8 return wxStringOperations::AddToIter(m_str->wx_str(), m_offset); #else return m_str->wx_str() + m_offset; #endif } 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 wxUSE_UNICODE_UTF8 // ---------------------------------------------------------------------------- // implementation of wxStringIteratorNode inline methods // ---------------------------------------------------------------------------- void wxStringIteratorNode::DoSet(const wxString *str, wxStringImpl::const_iterator *citer, wxStringImpl::iterator *iter) { m_prev = NULL; m_iter = iter; m_citer = citer; m_str = str; if ( str ) { m_next = str->m_iterators.ptr; wx_const_cast(wxString*, m_str)->m_iterators.ptr = this; if ( m_next ) m_next->m_prev = this; } else { m_next = NULL; } } void wxStringIteratorNode::clear() { if ( m_next ) m_next->m_prev = m_prev; if ( m_prev ) m_prev->m_next = m_next; else if ( m_str ) // first in the list wx_const_cast(wxString*, m_str)->m_iterators.ptr = m_next; m_next = m_prev = NULL; m_citer = NULL; m_iter = NULL; m_str = NULL; } #endif // wxUSE_UNICODE_UTF8 #if WXWIN_COMPATIBILITY_2_8 // lot of code out there doesn't explicitly include wx/crt.h, but uses // CRT wrappers that are now declared in wx/wxcrt.h and wx/wxcrtvararg.h, // so let's include this header now that wxString is defined and it's safe // to do it: #include "wx/crt.h" #endif #endif // _WX_WXSTRING_H_