X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5a8231ef46dfc249ae17c288841a282570309cfc..855f31ebe72bef834a32df2c274b41fb282ad265:/include/wx/string.h?ds=sidebyside diff --git a/include/wx/string.h b/include/wx/string.h index 08d4544810..6733c24b2a 100644 --- a/include/wx/string.h +++ b/include/wx/string.h @@ -76,9 +76,15 @@ class WXDLLIMPEXP_BASE wxString; // 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 wxStringBase::npos +#endif // WXWIN_COMPATIBILITY_2_6 + // ---------------------------------------------------------------------------- // global data // ---------------------------------------------------------------------------- @@ -164,7 +170,7 @@ inline int Stricmp(const char *psz1, const char *psz2) // ---------------------------------------------------------------------------- // in both cases we need to define wxStdString -#if wxUSE_STL || defined(wxUSE_STD_STRING) +#if wxUSE_STL || wxUSE_STD_STRING #include "wx/beforestd.h" #include @@ -187,6 +193,7 @@ inline int Stricmp(const char *psz1, const char *psz2) // we don't need an extra ctor from std::string when copy ctor already does // the work #undef wxUSE_STD_STRING + #define wxUSE_STD_STRING 0 #if (defined(__GNUG__) && (__GNUG__ < 3)) || \ (defined(_MSC_VER) && (_MSC_VER <= 1200)) @@ -196,7 +203,8 @@ inline int Stricmp(const char *psz1, const char *psz2) typedef wxStdString wxStringBase; #else // if !wxUSE_STL -#ifndef HAVE_STD_STRING_COMPARE +#if !defined(HAVE_STD_STRING_COMPARE) && \ + (!defined(__WX_SETUP_H__) || wxUSE_STL == 0) #define HAVE_STD_STRING_COMPARE #endif @@ -260,7 +268,7 @@ protected: // initializes the string to the empty value (must be called only from // ctors, use Reinit() otherwise) void Init() { m_pchData = (wxChar *)wxEmptyString; } - // initializaes the string with (a part of) C-string + // initializes the string with (a part of) C-string void InitWith(const wxChar *psz, size_t nPos = 0, size_t nLen = npos); // as Init, but also frees old data void Reinit() { GetStringData()->Unlock(); Init(); } @@ -297,6 +305,43 @@ public: typedef value_type *iterator; typedef const value_type *const_iterator; +#define wxSTRING_REVERSE_ITERATOR(name, const_or_not) \ + class name \ + { \ + public: \ + typedef wxChar value_type; \ + typedef const_or_not value_type& reference; \ + typedef const_or_not value_type *pointer; \ + typedef const_or_not value_type *iterator_type; \ + \ + name(iterator_type i) : m_cur(i) { } \ + name(const name& ri) : m_cur(ri.m_cur) { } \ + \ + iterator_type base() const { return m_cur; } \ + \ + reference operator*() const { return *(m_cur - 1); } \ + \ + name& operator++() { --m_cur; return *this; } \ + name operator++(int) { name tmp = *this; --m_cur; return tmp; } \ + name& operator--() { ++m_cur; return *this; } \ + name operator--(int) { name tmp = *this; ++m_cur; return tmp; } \ + \ + bool operator==(name ri) const { return m_cur == ri.m_cur; } \ + bool operator!=(name ri) const { return !(*this == ri); } \ + \ + private: \ + iterator_type m_cur; \ + } + + wxSTRING_REVERSE_ITERATOR(const_reverse_iterator, const); + + #define wxSTRING_CONST + wxSTRING_REVERSE_ITERATOR(reverse_iterator, wxSTRING_CONST); + #undef wxSTRING_CONST + + #undef wxSTRING_REVERSE_ITERATOR + + // constructors and destructor // ctor for an empty string wxStringBase() { Init(); } @@ -323,7 +368,9 @@ public: { InitWith(psz, 0, npos); } wxStringBase(const wxChar *psz, size_t nLength) { InitWith(psz, 0, nLength); } - wxStringBase(const wxChar *psz, wxMBConv& WXUNUSED(conv), size_t nLength = npos) + wxStringBase(const wxChar *psz, + const wxMBConv& WXUNUSED(conv), + size_t nLength = npos) { InitWith(psz, 0, nLength); } // take nLen chars starting at nPos wxStringBase(const wxStringBase& str, size_t nPos, size_t nLen) @@ -362,17 +409,17 @@ public: wxStringBase& operator=(const wxChar *psz); // return the length of the string - size_type size() const { return GetStringData()->nDataLength; } + size_type length() const { return GetStringData()->nDataLength; } // return the length of the string - size_type length() const { return size(); } + size_type size() const { return length(); } // return the maximum size of the string - size_type max_size() const { return wxSTRING_MAXLEN; } + size_type max_size() const { return npos; } // resize the string, filling the space with c if c != 0 void resize(size_t nSize, wxChar ch = wxT('\0')); // delete the contents of the string void clear() { erase(0, npos); } // returns true if the string is empty - bool empty() const { return size() == 0; } + bool empty() const { return length() == 0; } // inform string about planned change in size void reserve(size_t sz) { Alloc(sz); } size_type capacity() const { return GetStringData()->nAllocLength; } @@ -427,14 +474,18 @@ public: // first valid index position const_iterator begin() const { return m_pchData; } + iterator begin(); // position one after the last valid one const_iterator end() const { return m_pchData + length(); } - - // first valid index position - iterator begin(); - // position one after the last valid one iterator 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()); } + // insert another string wxStringBase& insert(size_t nPos, const wxStringBase& str) { @@ -613,7 +664,7 @@ friend class WXDLLIMPEXP_BASE wxArrayString; // NB: special care was taken in arranging the member functions in such order // that all inline functions can be effectively inlined, verify that all - // performace critical functions are still inlined if you change order! + // performance critical functions are still inlined if you change order! private: // if we hadn't made these operators private, it would be possible to // compile "wxString s; s = 17;" without any warnings as 17 is implicitly @@ -648,33 +699,42 @@ public: : wxStringBase(psz ? psz : wxT("")) { } wxString(const wxChar *psz, size_t nLength) : wxStringBase(psz, nLength) { } - wxString(const wxChar *psz, wxMBConv& WXUNUSED(conv), size_t nLength = npos) + wxString(const wxChar *psz, + const wxMBConv& WXUNUSED(conv), + size_t nLength = npos) : wxStringBase(psz, nLength == npos ? wxStrlen(psz) : nLength) { } - // even we're not build with wxUSE_STL == 1 it is very convenient to allow + // even if we're not built with wxUSE_STL == 1 it is very convenient to allow // implicit conversions from std::string to wxString as this allows to use // the same strings in non-GUI and GUI code, however we don't want to // unconditionally add this ctor as it would make wx lib dependent on // libstdc++ on some Linux versions which is bad, so instead we ask the // client code to define this wxUSE_STD_STRING symbol if they need it -#ifdef wxUSE_STD_STRING +#if wxUSE_STD_STRING wxString(const wxStdString& s) : wxStringBase(s.c_str()) { } #endif // wxUSE_STD_STRING #if wxUSE_UNICODE // from multibyte string - wxString(const char *psz, wxMBConv& conv, size_t nLength = npos); + wxString(const char *psz, + const wxMBConv& conv = wxConvLibc, + size_t nLength = npos); // from wxWCharBuffer (i.e. return from wxGetString) wxString(const wxWCharBuffer& psz) : wxStringBase(psz.data()) { } #else // ANSI // from C string (for compilers using unsigned char) - wxString(const unsigned char* psz, size_t nLength = npos) + wxString(const unsigned char* psz) + : wxStringBase((const char*)psz) { } + // from part of C string (for compilers using unsigned char) + wxString(const unsigned char* psz, size_t nLength) : wxStringBase((const char*)psz, nLength) { } #if wxUSE_WCHAR_T // from wide (Unicode) string - wxString(const wchar_t *pwz, wxMBConv& conv = wxConvLibc, size_t nLength = npos); + wxString(const wchar_t *pwz, + const wxMBConv& conv = wxConvLibc, + size_t nLength = npos); #endif // !wxUSE_WCHAR_T // from wxCharBuffer @@ -688,7 +748,7 @@ public: // string contains any characters? bool IsEmpty() const { return empty(); } // empty string is "false", so !str will return true - bool operator!() const { return IsEmpty(); } + bool operator!() const { return empty(); } // truncate the string to given length wxString& Truncate(size_t uiLen); // empty string contents @@ -804,14 +864,14 @@ public: // type differs because a function may either return pointer to the buffer // directly or have to use intermediate buffer for translation. #if wxUSE_UNICODE - const wxCharBuffer mb_str(wxMBConv& conv = wxConvLibc) const; + const wxCharBuffer mb_str(const wxMBConv& conv = wxConvLibc) const; const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); } const wxChar* wc_str() const { return c_str(); } // for compatibility with !wxUSE_UNICODE version - const wxChar* wc_str(wxMBConv& WXUNUSED(conv)) const { return c_str(); } + const wxChar* wc_str(const wxMBConv& WXUNUSED(conv)) const { return c_str(); } #if wxMBFILES const wxCharBuffer fn_str() const { return mb_str(wxConvFile); } @@ -822,12 +882,12 @@ public: const wxChar* mb_str() const { return c_str(); } // for compatibility with wxUSE_UNICODE version - const wxChar* mb_str(wxMBConv& WXUNUSED(conv)) const { return c_str(); } + const wxChar* mb_str(const wxMBConv& WXUNUSED(conv)) const { return c_str(); } const wxWX2MBbuf mbc_str() const { return mb_str(); } #if wxUSE_WCHAR_T - const wxWCharBuffer wc_str(wxMBConv& conv) const; + const wxWCharBuffer wc_str(const wxMBConv& conv) const; #endif // wxUSE_WCHAR_T #ifdef __WXOSX__ const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLocal ) ); } @@ -843,13 +903,23 @@ public: // from a character wxString& operator=(wxChar ch) { return (wxString&)wxStringBase::operator=(ch); } - // from a C string + // from a C string - STL probably will crash on NULL, + // so we need to compensate in that case +#if wxUSE_STL + wxString& operator=(const wxChar *psz) + { if(psz) wxStringBase::operator=(psz); else Clear(); return *this; } +#else wxString& operator=(const wxChar *psz) { return (wxString&)wxStringBase::operator=(psz); } +#endif + #if wxUSE_UNICODE // from wxWCharBuffer wxString& operator=(const wxWCharBuffer& psz) { (void) operator=((const wchar_t *)psz); return *this; } + // from C string + wxString& operator=(const char* psz) + { return operator=(wxString(psz)); } #else // ANSI // from another kind of C string wxString& operator=(const unsigned char* psz); @@ -872,7 +942,7 @@ public: // string += string wxString& operator<<(const wxString& s) { -#if !wxUSE_STL +#if WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL wxASSERT_MSG( s.GetStringData()->IsValid(), _T("did you forget to call UngetWriteBuf()?") ); #endif @@ -889,16 +959,24 @@ public: // string += buffer (i.e. from wxGetString) #if wxUSE_UNICODE wxString& operator<<(const wxWCharBuffer& s) - { (void)operator<<((const wchar_t *)s); return *this; } - void operator+=(const wxWCharBuffer& s) - { (void)operator<<((const wchar_t *)s); } + { return operator<<((const wchar_t *)s); } + wxString& operator+=(const wxWCharBuffer& s) + { return operator<<((const wchar_t *)s); } #else // !wxUSE_UNICODE wxString& operator<<(const wxCharBuffer& s) - { (void)operator<<((const char *)s); return *this; } - void operator+=(const wxCharBuffer& s) - { (void)operator<<((const char *)s); } + { return operator<<((const char *)s); } + wxString& operator+=(const wxCharBuffer& s) + { return operator<<((const char *)s); } #endif // wxUSE_UNICODE/!wxUSE_UNICODE +#if wxUSE_UNICODE + // string += C string in Unicode build (with conversion) + wxString& operator<<(const char *s) + { return operator<<(wxString(s)); } + wxString& operator+=(const char *s) + { return operator+=(wxString(s)); } +#endif // wxUSE_UNICODE + // string += C string wxString& Append(const wxString& s) { @@ -922,16 +1000,19 @@ public: { *this = str + *this; return *this; } // non-destructive concatenation - // - friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string1, const wxString& string2); - // + // two strings + friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string1, + const wxString& string2); + // string with a single char friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch); - // + // char with a string friend wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string); - // - friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wxChar *psz); - // - friend wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, const wxString& string); + // string with C string + friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string, + const wxChar *psz); + // C string with string + friend wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, + const wxString& string); // stream-like functions // insert an int into string @@ -946,6 +1027,20 @@ public: // 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); } @@ -964,7 +1059,7 @@ public: // (if compareWithCase then the case matters) bool IsSameAs(const wxChar *psz, bool compareWithCase = true) const { return (compareWithCase ? Cmp(psz) : CmpNoCase(psz)) == 0; } - // comparison with a signle character: returns true if equal + // comparison with a single character: returns true if equal bool IsSameAs(wxChar c, bool compareWithCase = true) const { return (length() == 1) && (compareWithCase ? GetChar(0u) == c @@ -980,10 +1075,14 @@ public: wxString operator()(size_t start, size_t len) const { return Mid(start, len); } - // check that the string starts with prefix and return the rest of the - // string in the provided pointer if it is not NULL, otherwise return - // false + // check if the string starts with the given prefix and return the rest + // of the string in the provided pointer if it is not NULL; otherwise + // return false bool StartsWith(const wxChar *prefix, wxString *rest = NULL) const; + // check if the string ends with the given suffix and return the + // beginning of the string before the suffix in the provided pointer if + // it is not NULL; otherwise return false + bool EndsWith(const wxChar *suffix, wxString *rest = NULL) const; // get first nCount characters wxString Left(size_t nCount) const; @@ -1046,10 +1145,18 @@ public: 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; - // formated input/output + + + // formatted input/output // as sprintf(), returns the number of characters written or < 0 on error // (take 'this' into account in attribute parameter count) int Printf(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_2; @@ -1068,14 +1175,16 @@ public: // minimize the string's memory // only works if the data of this string is not shared bool Shrink(); -#if !wxUSE_STL +#if WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL + // 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! - wxChar *GetWriteBuf(size_t nLen); + wxDEPRECATED( wxChar *GetWriteBuf(size_t nLen) ); // call this immediately after GetWriteBuf() has been used - void UngetWriteBuf(); - void UngetWriteBuf(size_t nLen); -#endif + wxDEPRECATED( void UngetWriteBuf() ); + wxDEPRECATED( void UngetWriteBuf(size_t nLen) ); +#endif // WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL // wxWidgets version 1 compatibility functions @@ -1177,7 +1286,7 @@ public: { return (wxString&)wxStringBase::assign(first, last); } // string comparison -#ifndef HAVE_STD_STRING_COMPARE +#if !defined(HAVE_STD_STRING_COMPARE) int compare(const wxStringBase& str) const; // comparison with a substring int compare(size_t nStart, size_t nLen, const wxStringBase& str) const; @@ -1264,12 +1373,29 @@ public: // string += char wxString& operator+=(wxChar ch) { return (wxString&)wxStringBase::operator+=(ch); } -}; -// define wxArrayString, for compatibility -#if WXWIN_COMPATIBILITY_2_4 && !wxUSE_STL - #include "wx/arrstr.h" +private: +#if !wxUSE_STL + // helpers for wxStringBuffer and wxStringBufferLength + wxChar *DoGetWriteBuf(size_t nLen); + void DoUngetWriteBuf(); + void DoUngetWriteBuf(size_t nLen); + + friend class WXDLLIMPEXP_BASE wxStringBuffer; + friend class WXDLLIMPEXP_BASE wxStringBufferLength; #endif +}; + +// notice that even though for many compilers the friend declarations above are +// enough, from the point of view of C++ standard we must have the declarations +// here as friend ones are not injected in the enclosing namespace and without +// them the code fails to compile with conforming compilers such as xlC or g++4 +wxString WXDLLIMPEXP_BASE operator+(const wxString& string1, const wxString& string2); +wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch); +wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string); +wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wxChar *psz); +wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, const wxString& string); + #if wxUSE_STL // return an empty wxString (not very useful with wxUSE_STL == 1) @@ -1346,9 +1472,9 @@ class WXDLLIMPEXP_BASE wxStringBuffer public: wxStringBuffer(wxString& str, size_t lenWanted = 1024) : m_str(str), m_buf(NULL) - { m_buf = m_str.GetWriteBuf(lenWanted); } + { m_buf = m_str.DoGetWriteBuf(lenWanted); } - ~wxStringBuffer() { m_str.UngetWriteBuf(); } + ~wxStringBuffer() { m_str.DoUngetWriteBuf(); } operator wxChar*() const { return m_buf; } @@ -1365,14 +1491,14 @@ public: wxStringBufferLength(wxString& str, size_t lenWanted = 1024) : m_str(str), m_buf(NULL), m_len(0), m_lenSet(false) { - m_buf = m_str.GetWriteBuf(lenWanted); + m_buf = m_str.DoGetWriteBuf(lenWanted); wxASSERT(m_buf != NULL); } ~wxStringBufferLength() { wxASSERT(m_lenSet); - m_str.UngetWriteBuf(m_len); + m_str.DoUngetWriteBuf(m_len); } operator wxChar*() const { return m_buf; } @@ -1455,12 +1581,6 @@ inline bool operator!=(const wxCharBuffer& s1, const wxString& s2) { return (s2.Cmp((const char *)s1) != 0); } #endif // wxUSE_UNICODE/!wxUSE_UNICODE -wxString WXDLLIMPEXP_BASE operator+(const wxString& string1, const wxString& string2); -wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch); -wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string); -wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wxChar *psz); -wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, const wxString& string); - #if wxUSE_UNICODE inline wxString operator+(const wxString& string, const wxWCharBuffer& buf) { return string + (const wchar_t *)buf; } @@ -1482,6 +1602,34 @@ inline bool operator==(const wxString& s, wxChar c) { return s.IsSameAs(c); } inline bool operator!=(wxChar c, const wxString& s) { return !s.IsSameAs(c); } inline bool operator!=(const wxString& s, wxChar c) { return !s.IsSameAs(c); } +// comparison with C string in Unicode build +#if wxUSE_UNICODE +inline bool operator==(const wxString& s1, const char* s2) + { return s1 == wxString(s2); } +inline bool operator==(const char* s1, const wxString& s2) + { return wxString(s1) == s2; } +inline bool operator!=(const wxString& s1, const char* s2) + { return s1 != wxString(s2); } +inline bool operator!=(const char* s1, const wxString& s2) + { return wxString(s1) != s2; } +inline bool operator< (const wxString& s1, const char* s2) + { return s1 < wxString(s2); } +inline bool operator< (const char* s1, const wxString& s2) + { return wxString(s1) < s2; } +inline bool operator> (const wxString& s1, const char* s2) + { return s1 > wxString(s2); } +inline bool operator> (const char* s1, const wxString& s2) + { return wxString(s1) > s2; } +inline bool operator<=(const wxString& s1, const char* s2) + { return s1 <= wxString(s2); } +inline bool operator<=(const char* s1, const wxString& s2) + { return wxString(s1) <= s2; } +inline bool operator>=(const wxString& s1, const char* s2) + { return s1 >= wxString(s2); } +inline bool operator>=(const char* s1, const wxString& s2) + { return wxString(s1) >= s2; } +#endif // wxUSE_UNICODE + // --------------------------------------------------------------------------- // Implementation only from here until the end of file // --------------------------------------------------------------------------- @@ -1493,7 +1641,6 @@ inline bool operator!=(const wxString& s, wxChar c) { return !s.IsSameAs(c); } #include "wx/iosfwrap.h" -WXDLLIMPEXP_BASE wxSTD istream& operator>>(wxSTD istream&, wxString&); WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxString&); #endif // wxSTD_STRING_COMPATIBILITY