X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5f167b77d20f656f9e855113175849bd2e79cc58..6a3ea4ead89a97b4dcc6a1fdc8c48119bdaabc23:/include/wx/string.h?ds=sidebyside diff --git a/include/wx/string.h b/include/wx/string.h index 6a47d751a0..0a72bfe320 100644 --- a/include/wx/string.h +++ b/include/wx/string.h @@ -24,6 +24,7 @@ #include "wx/defs.h" // everybody should include this +#ifndef __WXPALMOS5__ #if defined(__WXMAC__) || defined(__VISAGECPP__) #include #endif @@ -46,12 +47,9 @@ #ifdef HAVE_STRCASECMP_IN_STRINGS_H #include // for strcasecmp() #endif // HAVE_STRCASECMP_IN_STRINGS_H +#endif // ! __WXPALMOS5__ -#ifdef __WXPALMOS__ - #include -#endif - -#include "wx/wxcrt.h" // for wxChar, wxStrlen() etc. +#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 @@ -59,7 +57,7 @@ #include "wx/stringops.h" #include "wx/unichar.h" -class WXDLLIMPEXP_BASE wxString; +class WXDLLIMPEXP_FWD_BASE wxString; // unless this symbol is predefined to disable the compatibility functions, do // use them @@ -67,6 +65,11 @@ class WXDLLIMPEXP_BASE wxString; #define WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER 1 #endif +namespace wxPrivate +{ + template struct wxStringAsBufHelper; +} + // --------------------------------------------------------------------------- // macros // --------------------------------------------------------------------------- @@ -125,8 +128,6 @@ inline int Stricmp(const char *psz1, const char *psz2) return _stricmp(psz1, psz2); #elif defined(__SC__) return _stricmp(psz1, psz2); -#elif defined(__SALFORDC__) - return stricmp(psz1, psz2); #elif defined(__BORLANDC__) return stricmp(psz1, psz2); #elif defined(__WATCOMC__) @@ -239,22 +240,12 @@ public: wxCStrData operator+(size_t n) const { return wxCStrData(m_str, m_offset + n, m_owned); } - // and these for "str.c_str() + n - 2": - wxCStrData operator-(int n) const - { - wxASSERT_MSG( n <= (int)m_offset, - _T("attempt to construct address before the beginning of the string") ); - return wxCStrData(m_str, m_offset - n, m_owned); - } - wxCStrData operator-(long n) const + // 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 <= (int)m_offset, - _T("attempt to construct address before the beginning of the string") ); - return wxCStrData(m_str, m_offset - n, m_owned); - } - wxCStrData operator-(size_t n) const - { - wxASSERT_MSG( n <= m_offset, + 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); } @@ -268,7 +259,7 @@ private: size_t m_offset; bool m_owned; - friend class WXDLLIMPEXP_BASE wxString; + friend class WXDLLIMPEXP_FWD_BASE wxString; }; // ---------------------------------------------------------------------------- @@ -334,14 +325,16 @@ public: // We have to implement the version without template arguments manually // because of the StringReturnType<> hack, although WX_DEFINE_VARARG_FUNC // normally does it itself. It has to be a template so that we can use - // the hack, even though there's no real template parameter: - struct FormatDummyArg {} ; - + // 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 wxFormatString& fmt, FormatDummyArg dummy = FormatDummyArg()) + Format(const T& fmt) { - return DoFormatWchar(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, ...); @@ -368,6 +361,43 @@ protected: #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 @@ -406,7 +436,10 @@ private: size_t len; SubstrBufFromType(const T& data_, size_t len_) - : data(data_), len(len_) {} + : data(data_), len(len_) + { + wxASSERT_MSG( len != npos, "must have real length" ); + } }; #if wxUSE_UNICODE_UTF8 @@ -485,9 +518,9 @@ private: { return ConvertStr(str, n, conv); } static wxCharBuffer ImplStr(const wchar_t* str) - { return ConvertStr(str, npos, wxConvUTF8).data; } + { return ConvertStr(str, npos, wxMBConvUTF8()).data; } static SubstrBufFromWC ImplStr(const wchar_t* str, size_t n) - { return ConvertStr(str, n, wxConvUTF8); } + { return ConvertStr(str, n, wxMBConvUTF8()); } size_t PosToImpl(size_t pos) const { @@ -511,7 +544,7 @@ private: if ( pos == 0 || pos == npos ) return pos; else - return const_iterator(m_impl.begin() + pos) - begin(); + return const_iterator(this, m_impl.begin() + pos) - begin(); } #endif // !wxUSE_UNICODE_UTF8/wxUSE_UNICODE_UTF8 @@ -537,8 +570,7 @@ public: #define WX_STR_ITERATOR_TAG void /* dummy type */ #endif - #define WX_STR_ITERATOR_IMPL(iterator_name, pointer_type, \ - reference_type, reference_ctor) \ + #define WX_STR_ITERATOR_IMPL(iterator_name, pointer_type, reference_type) \ private: \ typedef wxStringImpl::iterator_name underlying_iterator; \ public: \ @@ -548,7 +580,6 @@ public: typedef reference_type reference; \ typedef pointer_type pointer; \ \ - reference operator*() const { return reference_ctor; } \ reference operator[](size_t n) const { return *(*this + n); } \ \ iterator_name& operator++() \ @@ -568,25 +599,15 @@ public: return tmp; \ } \ \ - iterator_name& operator+=(int n) \ + iterator_name& operator+=(ptrdiff_t n) \ { \ m_cur = wxStringOperations::AddToIter(m_cur, n); \ return *this; \ } \ - iterator_name& operator+=(size_t n) \ - { \ - m_cur = wxStringOperations::AddToIter(m_cur, (int)n); \ - return *this; \ - } \ - iterator_name& operator-=(int n) \ + iterator_name& operator-=(ptrdiff_t n) \ { \ m_cur = wxStringOperations::AddToIter(m_cur, -n); \ return *this; \ - } \ - iterator_name& operator-=(size_t n) \ - { \ - m_cur = wxStringOperations::AddToIter(m_cur, -(int)n); \ - return *this; \ } \ \ difference_type operator-(const iterator_name& i) const \ @@ -610,70 +631,129 @@ public: /* for internal wxString use only: */ \ underlying_iterator impl() const { return m_cur; } \ \ - friend class WXDLLIMPEXP_BASE wxString; \ - friend class WXDLLIMPEXP_BASE wxCStrData; \ + friend class wxString; \ + friend class wxCStrData; \ \ private: \ underlying_iterator m_cur - class const_iterator; + class WXDLLIMPEXP_FWD_BASE const_iterator; #if wxUSE_UNICODE_UTF8 - class iterator - { - // NB: In UTF-8 build, (non-const) iterator needs to keep reference - // to the underlying wxStringImpl, because UTF-8 is variable-length - // encoding and changing the value pointer to by an iterator using - // its operator* requires calling wxStringImpl::replace() if the old - // and new values differ in their encoding's length. + // 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) - WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef, - wxUniCharRef::CreateForString(m_str, m_cur)); + class WXDLLIMPEXP_BASE iterator + { + WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef); public: - iterator(const iterator& i) : m_cur(i.m_cur), m_str(i.m_str) {} + 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+(int n) const - { return iterator(m_str, wxStringOperations::AddToIter(m_cur, n)); } - iterator operator+(size_t n) const - { return iterator(m_str, wxStringOperations::AddToIter(m_cur, (int)n)); } - iterator operator-(int n) const - { return iterator(m_str, wxStringOperations::AddToIter(m_cur, -n)); } - iterator operator-(size_t n) const - { return iterator(m_str, wxStringOperations::AddToIter(m_cur, -(int)n)); } + 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_str(str->m_impl) {} - iterator(wxStringImpl& str, underlying_iterator ptr) - : m_cur(ptr), m_str(str) {} + : m_cur(ptr), m_node(str, &m_cur) {} - wxStringImpl& m_str; + 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 iterator + class WXDLLIMPEXP_BASE iterator { - WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef, - wxUniCharRef::CreateForString(m_cur)); + WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef); public: + iterator() {} iterator(const iterator& i) : m_cur(i.m_cur) {} - iterator operator+(int n) const + reference operator*() + { return wxUniCharRef::CreateForString(m_cur); } + + iterator operator+(ptrdiff_t n) const { return iterator(wxStringOperations::AddToIter(m_cur, n)); } - iterator operator+(size_t n) const - { return iterator(wxStringOperations::AddToIter(m_cur, (int)n)); } - iterator operator-(int n) const + iterator operator-(ptrdiff_t n) const { return iterator(wxStringOperations::AddToIter(m_cur, -n)); } - iterator operator-(size_t n) const - { return iterator(wxStringOperations::AddToIter(m_cur, -(int)n)); } private: // for internal wxString use only: @@ -682,32 +762,33 @@ public: friend class const_iterator; }; -#endif // wxUSE_UNICODE_UTF8/!wxUSE_UNICODE_UTF8 - 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, - wxStringOperations::DecodeChar(m_cur)); + 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) {} - const_iterator operator+(int n) const + 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+(size_t n) const - { return const_iterator(wxStringOperations::AddToIter(m_cur, (int)n)); } - const_iterator operator-(int n) const + const_iterator operator-(ptrdiff_t n) const { return const_iterator(wxStringOperations::AddToIter(m_cur, -n)); } - const_iterator operator-(size_t n) const - { return const_iterator(wxStringOperations::AddToIter(m_cur, -(int)n)); } private: // for internal wxString use only: const_iterator(underlying_iterator ptr) : m_cur(ptr) {} + 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 @@ -727,6 +808,7 @@ public: 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) {} @@ -746,21 +828,13 @@ public: { 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+(int n) const + reverse_iterator_impl operator+(ptrdiff_t n) const { return reverse_iterator_impl(m_cur - n); } - reverse_iterator_impl operator+(size_t n) const - { return reverse_iterator_impl(m_cur - n); } - reverse_iterator_impl operator-(int n) const - { return reverse_iterator_impl(m_cur + n); } - reverse_iterator_impl operator-(size_t n) const + reverse_iterator_impl operator-(ptrdiff_t n) const { return reverse_iterator_impl(m_cur + n); } - reverse_iterator_impl operator+=(int n) + reverse_iterator_impl operator+=(ptrdiff_t n) { m_cur -= n; return *this; } - reverse_iterator_impl operator+=(size_t n) - { m_cur -= n; return *this; } - reverse_iterator_impl operator-=(int n) - { m_cur += n; return *this; } - reverse_iterator_impl operator-=(size_t n) + reverse_iterator_impl operator-=(ptrdiff_t n) { m_cur += n; return *this; } unsigned operator-(const reverse_iterator_impl& i) const @@ -792,7 +866,8 @@ private: // wxCStrData) to an iterator into the string static const_iterator CreateConstIterator(const wxCStrData& data) { - return const_iterator(data.m_str->begin() + data.m_offset); + 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 @@ -825,7 +900,7 @@ public: wxString(const wxString& stringSrc) : m_impl(stringSrc.m_impl) { } // string containing nRepeat copies of ch - wxString(wxUniChar ch, size_t nRepeat = 1) + wxString(wxUniChar ch, size_t nRepeat = 1 ) { assign(nRepeat, ch); } wxString(size_t nRepeat, wxUniChar ch) { assign(nRepeat, ch); } @@ -883,8 +958,11 @@ public: wxString(const wxWCharBuffer& buf) { assign(buf.data()); } // FIXME-UTF8: fix for embedded NUL and buffer length + // NB: this version uses m_impl.c_str() to force making a copy of the + // string, so that "wxString(str.c_str())" idiom for passing strings + // between threads works wxString(const wxCStrData& cstr) - : m_impl(cstr.AsString().m_impl) { } + : m_impl(cstr.AsString().m_impl.c_str()) { } // as we provide both ctors with this signature for both char and unsigned // char string, we need to provide one for wxCStrData to resolve ambiguity @@ -894,7 +972,7 @@ public: // and because wxString is convertible to wxCStrData and const wxChar * // we also need to provide this one wxString(const wxString& str, size_t nLength) - : m_impl(str.Mid(0, nLength).m_impl) {} + { 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 @@ -917,7 +995,12 @@ public: 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; } @@ -939,11 +1022,18 @@ public: #endif #endif // wxUSE_STL + wxString Clone() const + { + // make a deep copy of the string, i.e. the returned string will have + // ref count = 1 with refcounted implementation + return wxString::FromImpl(wxStringImpl(m_impl.c_str(), m_impl.length())); + } + // first valid index position - const_iterator begin() const { return const_iterator(m_impl.begin()); } + 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(m_impl.end()); } + 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 @@ -974,19 +1064,25 @@ public: void resize(size_t nSize, wxUniChar ch = wxT('\0')) { + const size_t len = length(); + if ( nSize == len) + return; + #if wxUSE_UNICODE_UTF8 - if ( !ch.IsAscii() ) + if ( nSize < len ) { - size_t len = length(); - if ( nSize == len) - return; - else if ( nSize < len ) - erase(nSize); - else - append(nSize - len, ch); + // 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 +#endif // wxUSE_UNICODE_UTF8 m_impl.resize(nSize, (wxStringCharType)ch); } @@ -1045,18 +1141,17 @@ public: // get last character wxUniChar Last() const - { - wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") ); - - return at(length() - 1); - } + { + 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 at(length() - 1); - } + { + wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") ); + return *rbegin(); + } /* Note that we we must define all of the overloads below to avoid @@ -1091,6 +1186,13 @@ public: // 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(); } @@ -1098,6 +1200,7 @@ 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 // identical to c_str(), for MFC compatibility const wxCStrData GetData() const { return c_str(); } @@ -1113,6 +1216,30 @@ public: { return mb_str(conv); } wxWritableWCharBuffer wchar_str() const { return wc_str(); } + // conversion to the buffer of the given type T (= char or wchar_t) and + // also optionally return the buffer length + // + // this is mostly/only useful for the template functions + // + // FIXME-VC6: the second argument only exists for VC6 which doesn't support + // explicit template function selection, do not use it unless + // you must support VC6! + template + wxCharTypeBuffer tchar_str(size_t *len = NULL, + T * WXUNUSED(dummy) = NULL) const + { +#if wxUSE_UNICODE + // we need a helper dispatcher depending on type + return wxPrivate::wxStringAsBufHelper::Get(*this, len); +#else // ANSI + // T can only be char in ANSI build + if ( len ) + *len = length(); + + return wxCharTypeBuffer::CreateNonOwned(wx_str()); +#endif // Unicode build kind + } + // conversion to/from plain (i.e. 7 bit) ASCII: this is useful for // converting numbers or strings which are certain not to contain special // chars (typically system functions, X atoms, environment variables etc.) @@ -1120,42 +1247,104 @@ public: // the behaviour of these functions with the strings containing anything // else than 7 bit ASCII characters is undefined, use at your own risk. #if wxUSE_UNICODE - static wxString FromAscii(const char *ascii); // string - static wxString FromAscii(const char ascii); // char + 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) { 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) + static wxString FromUTF8Unchecked(const char *utf8) { + if ( !utf8 ) + return wxEmptyString; + wxASSERT( wxStringOperations::IsValidUtf8String(utf8) ); return FromImpl(wxStringImpl(utf8)); } - static wxString FromUTF8(const char *utf8, size_t len) + static wxString FromUTF8Unchecked(const char *utf8, size_t len) { + if ( !utf8 ) + return wxEmptyString; + if ( len == npos ) + return FromUTF8Unchecked(utf8); + wxASSERT( wxStringOperations::IsValidUtf8String(utf8, len) ); return FromImpl(wxStringImpl(utf8, len)); } + + static wxString FromUTF8(const char *utf8) + { + if ( !utf8 || !wxStringOperations::IsValidUtf8String(utf8) ) + return ""; + + return FromImpl(wxStringImpl(utf8)); + } + static wxString FromUTF8(const char *utf8, size_t len) + { + if ( len == npos ) + return FromUTF8(utf8); + + if ( !utf8 || !wxStringOperations::IsValidUtf8String(utf8, len) ) + return ""; + + return FromImpl(wxStringImpl(utf8, len)); + } + const char* utf8_str() const { return wx_str(); } const char* ToUTF8() const { return wx_str(); } + + // this function exists in UTF-8 build only and returns the length of the + // internal UTF-8 representation + size_t utf8_length() const { return m_impl.length(); } #elif wxUSE_UNICODE_WCHAR - static wxString FromUTF8(const char *utf8) - { return wxString(utf8, wxConvUTF8); } - static wxString FromUTF8(const char *utf8, size_t len) - { return wxString(utf8, wxConvUTF8, len); } - const wxCharBuffer utf8_str() const { return mb_str(wxConvUTF8); } + static wxString FromUTF8(const char *utf8, size_t len = npos) + { return wxString(utf8, wxMBConvUTF8(), len); } + static wxString FromUTF8Unchecked(const char *utf8, size_t len = npos) + { + const wxString s(utf8, wxMBConvUTF8(), len); + wxASSERT_MSG( !utf8 || !*utf8 || !s.empty(), + "string must be valid UTF-8" ); + return s; + } + const 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(wxConvUTF8.cMB2WC(utf8)); } + { return wxString(wxMBConvUTF8().cMB2WC(utf8)); } static wxString FromUTF8(const char *utf8, size_t len) - { return wxString(wxConvUTF8.cMB2WC(utf8, len == npos ? wxNO_LEN : len)); } - const wxCharBuffer utf8_str() const { return wxConvUTF8.cWC2MB(wc_str()); } + { + size_t wlen; + wxWCharBuffer buf(wxMBConvUTF8().cMB2WC(utf8, len == npos ? wxNO_LEN : len, &wlen)); + return wxString(buf.data(), wlen); + } + static wxString FromUTF8Unchecked(const char *utf8, size_t len = npos) + { + size_t wlen; + wxWCharBuffer buf(wxMBConvUTF8().cMB2WC(utf8, + len == npos ? wxNO_LEN : len, + &wlen)); + wxASSERT_MSG( !utf8 || !*utf8 || wlen, + "string must be valid UTF-8" ); + + return wxString(buf.data(), wlen); + } + const wxCharBuffer utf8_str() const + { return wxMBConvUTF8().cWC2MB(wc_str()); } const wxCharBuffer ToUTF8() const { return utf8_str(); } #endif @@ -1197,7 +1386,7 @@ public: const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); } #if wxUSE_UNICODE_WCHAR - const wxChar* wc_str() const { return wx_str(); } + const wchar_t* wc_str() const { return wx_str(); } #elif wxUSE_UNICODE_UTF8 const wxWCharBuffer wc_str() const; #endif @@ -1215,29 +1404,42 @@ public: 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 char* mb_str(const wxMBConv& WXUNUSED(conv)) const { return wx_str(); } const wxWX2MBbuf mbc_str() const { return mb_str(); } #if wxUSE_WCHAR_T const wxWCharBuffer wc_str(const wxMBConv& conv = wxConvLibc) const; #endif // wxUSE_WCHAR_T -#ifdef __WXOSX__ - const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLocal ) ); } -#else - const wxChar* fn_str() const { return c_str(); } -#endif + const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLibc ) ); } #endif // Unicode/ANSI +#if wxUSE_UNICODE_UTF8 + const wxWCharBuffer t_str() const { return wc_str(); } +#elif wxUSE_UNICODE_WCHAR + const wchar_t* t_str() const { return wx_str(); } +#else + const char* t_str() const { return wx_str(); } +#endif + + // overloaded assignment // from another wxString wxString& operator=(const wxString& stringSrc) - { m_impl = stringSrc.m_impl; return *this; } + { 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) - { m_impl = wxStringOperations::EncodeChar(ch); return *this; } + { +#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) @@ -1327,6 +1529,16 @@ public: { append(psz); return *this; } wxString& Append(const wxWCharBuffer& psz) { append(psz); return *this; } + wxString& Append(const char* psz, size_t nLen) + { append(psz, nLen); return *this; } + wxString& Append(const wchar_t* pwz, size_t nLen) + { append(pwz, nLen); return *this; } + wxString& Append(const wxCStrData& psz, size_t nLen) + { append(psz, nLen); return *this; } + wxString& Append(const wxCharBuffer& psz, size_t nLen) + { append(psz, nLen); return *this; } + wxString& Append(const wxWCharBuffer& psz, size_t nLen) + { append(psz, nLen); return *this; } // append count copies of given character wxString& Append(wxUniChar ch, size_t count = 1u) { append(count, ch); return *this; } @@ -1338,10 +1550,6 @@ public: { 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) @@ -1416,14 +1624,23 @@ public: { return compare(s); } // same as Cmp() but not case-sensitive int CmpNoCase(const wxString& s) const; + // test for the string equality, either considering case or not // (if compareWithCase then the case matters) bool IsSameAs(const wxString& str, bool compareWithCase = true) const - { return (compareWithCase ? Cmp(str) : CmpNoCase(str)) == 0; } + { +#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 @@ -1431,11 +1648,7 @@ public: bool IsSameAs(const wxWCharBuffer& str, bool compareWithCase = true) const { return IsSameAs(str.data(), compareWithCase); } // comparison with a single character: returns true if equal - bool IsSameAs(wxUniChar c, bool compareWithCase = true) const - { - return (length() == 1) && (compareWithCase ? GetChar(0u) == c - : wxToupper(GetChar(0u)) == wxToupper(c)); - } + 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); } @@ -1460,11 +1673,11 @@ public: // 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; + 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 wxChar *suffix, wxString *rest = NULL) const; + bool EndsWith(const wxString& suffix, wxString *rest = NULL) const; // get first nCount characters wxString Left(size_t nCount) const; @@ -1575,12 +1788,15 @@ public: WX_DEFINE_VARARG_FUNC(int, Printf, 1, (const wxFormatString&), DoPrintfWchar, DoPrintfUtf8) #ifdef __WATCOMC__ - WX_DEFINE_VARARG_FUNC(int, Printf, 1, (const char*), - DoPrintfWchar, DoPrintfUtf8) - WX_DEFINE_VARARG_FUNC(int, Printf, 1, (const wchar_t*), - DoPrintfWchar, DoPrintfUtf8) - WX_DEFINE_VARARG_FUNC(int, Printf, 1, (const wxCStrData&), - DoPrintfWchar, DoPrintfUtf8) + // 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 @@ -1593,12 +1809,14 @@ public: DoFormatWchar, DoFormatUtf8) #ifdef __WATCOMC__ // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351 - WX_DEFINE_VARARG_FUNC(static wxString, Format, 1, (const char*), - DoFormatWchar, DoFormatUtf8) - WX_DEFINE_VARARG_FUNC(static wxString, Format, 1, (const wchar_t*), - DoFormatWchar, DoFormatUtf8) - WX_DEFINE_VARARG_FUNC(static wxString, Format, 1, (const wxCStrData&), - DoFormatWchar, DoFormatUtf8) + 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 @@ -1607,7 +1825,7 @@ public: // 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; } + bool Alloc(size_t nLen) { reserve(nLen); return capacity() >= nLen; } // minimize the string's memory // only works if the data of this string is not shared bool Shrink(); @@ -1640,12 +1858,14 @@ public: DoPrintfWchar, DoPrintfUtf8) #ifdef __WATCOMC__ // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351 - WX_DEFINE_VARARG_FUNC(int, sprintf, 1, (const char*), - DoPrintfWchar, DoPrintfUtf8) - WX_DEFINE_VARARG_FUNC(int, sprintf, 1, (const wchar_t*), - DoPrintfWchar, DoPrintfUtf8) - WX_DEFINE_VARARG_FUNC(int, sprintf, 1, (const wxCStrData&), - DoPrintfWchar, DoPrintfUtf8) + 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 @@ -1691,7 +1911,7 @@ public: // take nLen chars starting at nPos wxString(const wxString& str, size_t nPos, size_t nLen) - : m_impl(str.m_impl, nPos, 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()) { } @@ -1754,6 +1974,12 @@ public: { return append(str.data()); } wxString& append(const wxWCharBuffer& str) { return append(str.data()); } + wxString& append(const wxCStrData& str, size_t n) + { return append(str.AsString(), 0, n); } + wxString& append(const wxCharBuffer& str, size_t n) + { return append(str.data(), n); } + wxString& append(const wxWCharBuffer& str, size_t n) + { return append(str.data(), n); } // append n copies of ch wxString& append(size_t n, wxUniChar ch) @@ -1766,6 +1992,15 @@ public: m_impl.append(n, (wxStringCharType)ch); return *this; } + wxString& append(size_t n, wxUniCharRef ch) + { return append(n, wxUniChar(ch)); } + wxString& append(size_t n, char ch) + { return append(n, wxUniChar(ch)); } + wxString& append(size_t n, unsigned char ch) + { return append(n, wxUniChar(ch)); } + wxString& append(size_t n, wchar_t ch) + { return append(n, wxUniChar(ch)); } + // append from first to last wxString& append(const_iterator first, const_iterator last) { m_impl.append(first.impl(), last.impl()); return *this; } @@ -2124,8 +2359,15 @@ public: // find the first occurence of character ch after nStart size_t find(wxUniChar ch, size_t nStart = 0) const { - return PosFromImpl(m_impl.find(wxStringOperations::EncodeChar(ch), - PosToImpl(nStart))); +#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); } @@ -2162,8 +2404,14 @@ public: // as find, but from the end size_t rfind(wxUniChar ch, size_t nStart = npos) const { - return PosFromImpl(m_impl.rfind(wxStringOperations::EncodeChar(ch), - PosToImpl(nStart))); +#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); } @@ -2401,7 +2649,15 @@ public: { return operator+=(s.data()); } // string += char wxString& operator+=(wxUniChar ch) - { m_impl += wxStringOperations::EncodeChar(ch); return *this; } + { +#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); } @@ -2466,9 +2722,30 @@ private: ConvertedBuffer m_convertedToWChar; #endif - friend class WXDLLIMPEXP_BASE wxCStrData; - friend class wxImplStringBuffer; - friend class wxImplStringBufferLength; +#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 @@ -2477,21 +2754,13 @@ private: // string iterator operators that satisfy STL Random Access Iterator // requirements: -inline wxString::iterator operator+(int n, wxString::iterator i) - { return i + n; } -inline wxString::iterator operator+(size_t n, wxString::iterator i) +inline wxString::iterator operator+(ptrdiff_t n, wxString::iterator i) { return i + n; } -inline wxString::const_iterator operator+(int n, wxString::const_iterator i) +inline wxString::const_iterator operator+(ptrdiff_t n, wxString::const_iterator i) { return i + n; } -inline wxString::const_iterator operator+(size_t n, wxString::const_iterator i) +inline wxString::reverse_iterator operator+(ptrdiff_t n, wxString::reverse_iterator i) { return i + n; } -inline wxString::reverse_iterator operator+(int n, wxString::reverse_iterator i) - { return i + n; } -inline wxString::reverse_iterator operator+(size_t n, wxString::reverse_iterator i) - { return i + n; } -inline wxString::const_reverse_iterator operator+(int n, wxString::const_reverse_iterator i) - { return i + n; } -inline wxString::const_reverse_iterator operator+(size_t n, wxString::const_reverse_iterator i) +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 @@ -2521,16 +2790,68 @@ inline wxString operator+(wchar_t ch, const wxString& string) { return wxUniChar(ch) + string; } -#if wxUSE_STL_BASED_WXSTRING - // return an empty wxString (not very useful with wxUSE_STL == 1) - inline const wxString wxGetEmptyString() { return wxString(); } -#else // !wxUSE_STL_BASED_WXSTRING - // return an empty wxString (more efficient than wxString() here) - inline const wxString& wxGetEmptyString() +#define wxGetEmptyString() wxString() + +// ---------------------------------------------------------------------------- +// helper functions which couldn't be defined inline +// ---------------------------------------------------------------------------- + +namespace wxPrivate +{ + +#if wxUSE_UNICODE_WCHAR + +template <> +struct wxStringAsBufHelper +{ + static wxCharBuffer Get(const wxString& s, size_t *len) { - return *(wxString *)&wxEmptyString; + wxCharBuffer buf(s.mb_str()); + if ( len ) + *len = buf ? strlen(buf) : 0; + return buf; } -#endif // wxUSE_STL_BASED_WXSTRING/!wxUSE_STL_BASED_WXSTRING +}; + +template <> +struct wxStringAsBufHelper +{ + static wxWCharBuffer Get(const wxString& s, size_t *len) + { + if ( len ) + *len = s.length(); + return wxWCharBuffer::CreateNonOwned(s.wx_str()); + } +}; + +#elif wxUSE_UNICODE_UTF8 + +template <> +struct wxStringAsBufHelper +{ + static wxCharBuffer Get(const wxString& s, size_t *len) + { + if ( len ) + *len = s.utf8_length(); + return wxCharBuffer::CreateNonOwned(s.wx_str()); + } +}; + +template <> +struct wxStringAsBufHelper +{ + static wxWCharBuffer Get(const wxString& s, size_t *len) + { + wxWCharBuffer wbuf(s.wc_str()); + if ( len ) + *len = wxWcslen(wbuf); + return wbuf; + } +}; + +#endif // Unicode build kind + +} // namespace wxPrivate // ---------------------------------------------------------------------------- // wxStringBuffer: a tiny class allowing to get a writable pointer into string @@ -2539,16 +2860,16 @@ inline wxString operator+(wchar_t ch, const wxString& string) #if !wxUSE_STL_BASED_WXSTRING // string buffer for direct access to string data in their native // representation: -class wxImplStringBuffer +class wxStringInternalBuffer { public: typedef wxStringCharType CharType; - wxImplStringBuffer(wxString& str, size_t lenWanted = 1024) + wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024) : m_str(str), m_buf(NULL) { m_buf = m_str.DoGetWriteBuf(lenWanted); } - ~wxImplStringBuffer() { m_str.DoUngetWriteBuf(); } + ~wxStringInternalBuffer() { m_str.DoUngetWriteBuf(); } operator wxStringCharType*() const { return m_buf; } @@ -2556,22 +2877,22 @@ private: wxString& m_str; wxStringCharType *m_buf; - DECLARE_NO_COPY_CLASS(wxImplStringBuffer) + DECLARE_NO_COPY_CLASS(wxStringInternalBuffer) }; -class wxImplStringBufferLength +class wxStringInternalBufferLength { public: typedef wxStringCharType CharType; - wxImplStringBufferLength(wxString& str, size_t lenWanted = 1024) + 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); } - ~wxImplStringBufferLength() + ~wxStringInternalBufferLength() { wxASSERT(m_lenSet); m_str.DoUngetWriteBuf(m_len); @@ -2586,21 +2907,43 @@ private: size_t m_len; bool m_lenSet; - DECLARE_NO_COPY_CLASS(wxImplStringBufferLength) + DECLARE_NO_COPY_CLASS(wxStringInternalBufferLength) }; #endif // !wxUSE_STL_BASED_WXSTRING template -class wxStringTypeBufferBase +class WXDLLIMPEXP_BASE wxStringTypeBufferBase { public: typedef T CharType; wxStringTypeBufferBase(wxString& str, size_t lenWanted = 1024) : m_str(str), m_buf(lenWanted) - { } - + { + // for compatibility with old wxStringBuffer which provided direct + // access to wxString internal buffer, initialize ourselves with the + // string initial contents + + // FIXME-VC6: remove the ugly (CharType *)NULL and use normal + // tchar_str + size_t len; + const wxCharTypeBuffer buf(str.tchar_str(&len, (CharType *)NULL)); + if ( buf ) + { + if ( len > lenWanted ) + { + // in this case there is not enough space for terminating NUL, + // ensure that we still put it there + m_buf.data()[lenWanted] = 0; + len = lenWanted - 1; + } + + memcpy(m_buf.data(), buf, (len + 1)*sizeof(CharType)); + } + //else: conversion failed, this can happen when trying to get Unicode + // string contents into a char string + } operator CharType*() { return m_buf.data(); } @@ -2610,29 +2953,26 @@ protected: }; template -class wxStringTypeBufferLengthBase +class WXDLLIMPEXP_BASE wxStringTypeBufferLengthBase + : public wxStringTypeBufferBase { public: - typedef T CharType; - wxStringTypeBufferLengthBase(wxString& str, size_t lenWanted = 1024) - : m_str(str), m_buf(lenWanted), m_len(0), m_lenSet(false) + : wxStringTypeBufferBase(str, lenWanted), + m_len(0), + m_lenSet(false) { } ~wxStringTypeBufferLengthBase() { - wxASSERT(m_lenSet); - m_str.assign(m_buf.data(), m_len); + wxASSERT_MSG( this->m_lenSet, "forgot to call SetLength()" ); } - 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; + size_t m_len; + bool m_lenSet; }; template @@ -2640,7 +2980,9 @@ class wxStringTypeBuffer : public wxStringTypeBufferBase { public: wxStringTypeBuffer(wxString& str, size_t lenWanted = 1024) - : wxStringTypeBufferBase(str, lenWanted) {} + : wxStringTypeBufferBase(str, lenWanted) + { } + ~wxStringTypeBuffer() { this->m_str.assign(this->m_buf.data()); @@ -2654,11 +2996,11 @@ class wxStringTypeBufferLength : public wxStringTypeBufferLengthBase { public: wxStringTypeBufferLength(wxString& str, size_t lenWanted = 1024) - : wxStringTypeBufferLengthBase(str, lenWanted) {} + : wxStringTypeBufferLengthBase(str, lenWanted) + { } ~wxStringTypeBufferLength() { - wxASSERT(this->m_lenSet); this->m_str.assign(this->m_buf.data(), this->m_len); } @@ -2666,31 +3008,38 @@ public: }; #if wxUSE_STL_BASED_WXSTRING -class wxImplStringBuffer : public wxStringTypeBufferBase + +WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferBase ) + +class wxStringInternalBuffer : public wxStringTypeBufferBase { public: - wxImplStringBuffer(wxString& str, size_t lenWanted = 1024) + wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024) : wxStringTypeBufferBase(str, lenWanted) {} - ~wxImplStringBuffer() + ~wxStringInternalBuffer() { m_str.m_impl.assign(m_buf.data()); } - DECLARE_NO_COPY_CLASS(wxImplStringBuffer) + DECLARE_NO_COPY_CLASS(wxStringInternalBuffer) }; -class wxImplStringBufferLength : public wxStringTypeBufferLengthBase +WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( + wxStringTypeBufferLengthBase ) + +class wxStringInternalBufferLength + : public wxStringTypeBufferLengthBase { public: - wxImplStringBufferLength(wxString& str, size_t lenWanted = 1024) + wxStringInternalBufferLength(wxString& str, size_t lenWanted = 1024) : wxStringTypeBufferLengthBase(str, lenWanted) {} - ~wxImplStringBufferLength() + ~wxStringInternalBufferLength() { - wxASSERT(m_lenSet); m_str.m_impl.assign(m_buf.data(), m_len); } - DECLARE_NO_COPY_CLASS(wxImplStringBufferLength) + DECLARE_NO_COPY_CLASS(wxStringInternalBufferLength) }; + #endif // wxUSE_STL_BASED_WXSTRING @@ -2698,10 +3047,42 @@ public: typedef wxStringTypeBuffer wxStringBuffer; typedef wxStringTypeBufferLength wxStringBufferLength; #else // if !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8 -typedef wxImplStringBuffer wxStringBuffer; -typedef wxImplStringBufferLength wxStringBufferLength; +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 // --------------------------------------------------------------------------- @@ -2712,12 +3093,10 @@ wxDEFINE_ALL_COMPARISONS(const wxChar *, const wxString&, wxCMP_WXCHAR_STRING) #undef wxCMP_WXCHAR_STRING -// note that there is an optimization in operator==() and !=(): we (quickly) -// checks the strings length first, before comparing their data inline bool operator==(const wxString& s1, const wxString& s2) - { return (s1.Len() == s2.Len()) && (s1.Cmp(s2) == 0); } + { return s1.IsSameAs(s2); } inline bool operator!=(const wxString& s1, const wxString& s2) - { return (s1.Len() != s2.Len()) || (s1.Cmp(s2) != 0); } + { 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) @@ -2727,7 +3106,15 @@ inline bool operator<=(const wxString& s1, const wxString& s2) inline bool operator>=(const wxString& s1, const wxString& s2) { return s1.Cmp(s2) >= 0; } -#if wxUSE_UNICODE +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) @@ -2736,7 +3123,7 @@ inline bool operator!=(const wxString& s1, const wxWCharBuffer& s2) { return (s1.Cmp((const wchar_t *)s2) != 0); } inline bool operator!=(const wxWCharBuffer& s1, const wxString& s2) { return (s2.Cmp((const wchar_t *)s1) != 0); } -#else // !wxUSE_UNICODE + inline bool operator==(const wxString& s1, const wxCharBuffer& s2) { return (s1.Cmp((const char *)s2) == 0); } inline bool operator==(const wxCharBuffer& s1, const wxString& s2) @@ -2745,19 +3132,16 @@ inline bool operator!=(const wxString& s1, const wxCharBuffer& s2) { return (s1.Cmp((const char *)s2) != 0); } inline bool operator!=(const wxCharBuffer& s1, const wxString& s2) { return (s2.Cmp((const char *)s1) != 0); } -#endif // wxUSE_UNICODE/!wxUSE_UNICODE -#if wxUSE_UNICODE inline wxString operator+(const wxString& string, const wxWCharBuffer& buf) { return string + (const wchar_t *)buf; } inline wxString operator+(const wxWCharBuffer& buf, const wxString& string) { return (const wchar_t *)buf + string; } -#else // !wxUSE_UNICODE + inline wxString operator+(const wxString& string, const wxCharBuffer& buf) { return string + (const char *)buf; } inline wxString operator+(const wxCharBuffer& buf, const wxString& string) { return (const char *)buf + string; } -#endif // wxUSE_UNICODE/!wxUSE_UNICODE // comparison with char inline bool operator==(const wxUniChar& c, const wxString& s) { return s.IsSameAs(c); } @@ -2819,7 +3203,15 @@ WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxCharBuffer&); WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxWCharBuffer&); #endif -#endif // wxSTD_STRING_COMPATIBILITY +#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 @@ -2840,7 +3232,7 @@ inline wxCStrData::wxCStrData(const wxCStrData& data) inline wxCStrData::~wxCStrData() { if ( m_owned ) - delete m_str; + delete wx_const_cast(wxString*, m_str); // cast to silence warnings } // simple cases for AsChar() and AsWChar(), the complicated ones are @@ -2852,13 +3244,20 @@ inline const wchar_t* wxCStrData::AsWChar() const } #endif // wxUSE_UNICODE_WCHAR -#if !wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY +#if !wxUSE_UNICODE inline const char* wxCStrData::AsChar() const { - return wxStringOperations::AddToIter(m_str->wx_str(), m_offset); + 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 @@ -2887,7 +3286,11 @@ inline wxString wxCStrData::AsString() const 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 @@ -2936,12 +3339,54 @@ inline wxWCharBuffer::wxWCharBuffer(const wxCStrData& cstr) { } +#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/wxchar.h, but uses + // 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/wxchar.h" + #include "wx/crt.h" #endif #endif // _WX_WXSTRING_H_