X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/908c4056119d49b1b90f6618d38c85d080db152d..b02dd12239c8a59b9a545d9fcb04974f8ad02c6b:/include/wx/string.h?ds=sidebyside diff --git a/include/wx/string.h b/include/wx/string.h index 1ab7bd3446..843002256a 100644 --- a/include/wx/string.h +++ b/include/wx/string.h @@ -24,7 +24,6 @@ #include "wx/defs.h" // everybody should include this -#ifndef __WXPALMOS5__ #if defined(__WXMAC__) || defined(__VISAGECPP__) #include #endif @@ -47,7 +46,6 @@ #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" @@ -170,8 +168,7 @@ inline int Stricmp(const char *psz1, const char *psz2) return stricmp(psz1, psz2); #elif defined(__WXPM__) return stricmp(psz1, psz2); -#elif defined(__WXPALMOS__) || \ - defined(HAVE_STRCASECMP_IN_STRING_H) || \ +#elif defined(HAVE_STRCASECMP_IN_STRING_H) || \ defined(HAVE_STRCASECMP_IN_STRINGS_H) || \ defined(__GNUWIN32__) return strcasecmp(psz1, psz2); @@ -1004,6 +1001,16 @@ public: iterator operator-(ptrdiff_t n) const { return iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); } + // Normal iterators need to be comparable with the const_iterators so + // declare the comparison operators and implement them below after the + // full const_iterator declaration. + bool operator==(const const_iterator& i) const; + bool operator!=(const const_iterator& i) const; + bool operator<(const const_iterator& i) const; + bool operator>(const const_iterator& i) const; + bool operator<=(const const_iterator& i) const; + bool operator>=(const const_iterator& i) const; + private: iterator(wxString *wxstr, underlying_iterator ptr) : m_cur(ptr), m_node(wxstr, &m_cur) {} @@ -1048,6 +1055,11 @@ public: const_iterator operator-(ptrdiff_t n) const { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); } + // Notice that comparison operators taking non-const iterator are not + // needed here because of the implicit conversion from non-const iterator + // to const ones ensure that the versions for const_iterator declared + // inside WX_STR_ITERATOR_IMPL can be used. + private: // for internal wxString use only: const_iterator(const wxString *wxstr, underlying_iterator ptr) @@ -1083,6 +1095,15 @@ public: iterator operator-(ptrdiff_t n) const { return iterator(wxStringOperations::AddToIter(m_cur, -n)); } + // As in UTF-8 case above, define comparison operators taking + // const_iterator too. + bool operator==(const const_iterator& i) const; + bool operator!=(const const_iterator& i) const; + bool operator<(const const_iterator& i) const; + bool operator>(const const_iterator& i) const; + bool operator<=(const const_iterator& i) const; + bool operator>=(const const_iterator& i) const; + private: // for internal wxString use only: iterator(underlying_iterator ptr) : m_cur(ptr) {} @@ -1110,6 +1131,11 @@ public: const_iterator operator-(ptrdiff_t n) const { return const_iterator(wxStringOperations::AddToIter(m_cur, -n)); } + // As in UTF-8 case above, we don't need comparison operators taking + // iterator because we have an implicit conversion from iterator to + // const_iterator so the operators declared by WX_STR_ITERATOR_IMPL will + // be used. + private: // for internal wxString use only: const_iterator(underlying_iterator ptr) : m_cur(ptr) {} @@ -1316,12 +1342,13 @@ public: } #endif // wxUSE_STRING_POS_CACHE - // even if we're not built with wxUSE_STL == 1 it is very convenient to allow - // implicit conversions from std::string to wxString and vice verse as this - // allows to use the same strings in non-GUI and GUI code, however we don't - // want to unconditionally add this ctor as it would make wx lib dependent on - // libstdc++ on some Linux versions which is bad, so instead we ask the - // client code to define this wxUSE_STD_STRING symbol if they need it + // even if we're not built with wxUSE_STD_STRING_CONV_IN_WXSTRING == 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) {} @@ -1339,10 +1366,8 @@ public: #endif #endif // wxUSE_STD_STRING - // Unlike ctor from std::string, we provide conversion to std::string only - // if wxUSE_STL and not merely wxUSE_STD_STRING (which is on by default), - // because it conflicts with operator const char/wchar_t* but we still - // provide explicit conversions to std::[w]string for convenience in any case + // Also always provide explicit conversions to std::[w]string in any case, + // see below for the implicit ones. #if wxUSE_STD_STRING // We can avoid a copy if we already use this string type internally, // otherwise we create a copy on the fly: @@ -1354,7 +1379,13 @@ public: #define wxStringToStdWstringRetType wxStdWideString wxStdWideString ToStdWstring() const { +#if wxUSE_UNICODE_WCHAR + wxScopedWCharBuffer buf = + wxScopedWCharBuffer::CreateNonOwned(m_impl.c_str(), m_impl.length()); +#else // !wxUSE_UNICODE_WCHAR wxScopedWCharBuffer buf(wc_str()); +#endif + return wxStdWideString(buf.data(), buf.length()); } #endif @@ -1373,13 +1404,14 @@ public: } #endif -#if wxUSE_STL - // In wxUSE_STL case we also provide implicit conversions as there is no - // ambiguity with the const char/wchar_t* ones as they are disabled in this - // build (for consistency with std::basic_string<>) +#if wxUSE_STD_STRING_CONV_IN_WXSTRING + // Implicit conversions to std::[w]string are not provided by default as + // they conflict with the implicit conversions to "const char/wchar_t *" + // which we use for backwards compatibility but do provide them if + // explicitly requested. operator wxStringToStdStringRetType() const { return ToStdString(); } operator wxStringToStdWstringRetType() const { return ToStdWstring(); } -#endif // wxUSE_STL +#endif // wxUSE_STD_STRING_CONV_IN_WXSTRING #undef wxStringToStdStringRetType #undef wxStringToStdWstringRetType @@ -1619,11 +1651,12 @@ public: 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 + // std::string and they must be disabled if those conversions are enabled; + // 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_STD_STRING_CONV_IN_WXSTRING operator const char*() const { return c_str(); } operator const wchar_t*() const { return c_str(); } @@ -1631,7 +1664,7 @@ public: // 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 +#endif // !wxUSE_STD_STRING_CONV_IN_WXSTRING // identical to c_str(), for MFC compatibility const wxCStrData GetData() const { return c_str(); } @@ -2086,7 +2119,7 @@ public: // insert an unsigned long into string wxString& operator<<(unsigned long ul) { return (*this) << Format(wxT("%lu"), ul); } -#if defined wxLongLong_t && !defined wxLongLongIsLong +#ifdef wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG // insert a long long if they exist and aren't longs wxString& operator<<(wxLongLong_t ll) { @@ -2097,7 +2130,7 @@ public: { return (*this) << Format("%" wxLongLongFmtSpec "u" , ull); } -#endif // wxLongLong_t && !wxLongLongIsLong +#endif // wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG // insert a float into string wxString& operator<<(float f) { return (*this) << Format(wxT("%f"), f); } @@ -2181,11 +2214,13 @@ public: // get last nCount characters wxString Right(size_t nCount) const; // get all characters before the first occurrence of ch - // (returns the whole string if ch not found) - wxString BeforeFirst(wxUniChar ch) const; + // (returns the whole string if ch not found) and also put everything + // following the first occurrence of ch into rest if it's non-NULL + wxString BeforeFirst(wxUniChar ch, wxString *rest = NULL) const; // get all characters before the last occurrence of ch - // (returns empty string if ch not found) - wxString BeforeLast(wxUniChar ch) const; + // (returns empty string if ch not found) and also put everything + // following the last occurrence of ch into rest if it's non-NULL + wxString BeforeLast(wxUniChar ch, wxString *rest = NULL) const; // get all characters after the first occurrence of ch // (returns empty string if ch not found) wxString AfterFirst(wxUniChar ch) const; @@ -2289,12 +2324,12 @@ public: // convert to a double bool ToCDouble(double *val) const; - // create a string representing the given floating point number + // create a string representing the given floating point number with the + // default (like %g) or fixed (if precision >=0) precision // in the current locale - static wxString FromDouble(double val) - { return wxString::Format(wxS("%g"), val); } + static wxString FromDouble(double val, int precision = -1); // in C locale - static wxString FromCDouble(double val); + static wxString FromCDouble(double val, int precision = -1); #ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN // formatted input/output @@ -4046,6 +4081,21 @@ inline bool operator!=(const wxString& s, const wxUniCharRef& c) { return !s.IsS inline bool operator!=(const wxString& s, char c) { return !s.IsSameAs(c); } inline bool operator!=(const wxString& s, wchar_t c) { return !s.IsSameAs(c); } + +// wxString iterators comparisons +inline bool wxString::iterator::operator==(const const_iterator& i) const + { return i == *this; } +inline bool wxString::iterator::operator!=(const const_iterator& i) const + { return i != *this; } +inline bool wxString::iterator::operator<(const const_iterator& i) const + { return i > *this; } +inline bool wxString::iterator::operator>(const const_iterator& i) const + { return i < *this; } +inline bool wxString::iterator::operator<=(const const_iterator& i) const + { return i >= *this; } +inline bool wxString::iterator::operator>=(const const_iterator& i) const + { return i <= *this; } + // comparison with C string in Unicode build #if wxUSE_UNICODE