X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a7ea63e21fda950c658a477d59d0818aab993fc9..0516de2cdb33937bab49c7b381cecd25c5e50ef2:/include/wx/stringimpl.h?ds=sidebyside diff --git a/include/wx/stringimpl.h b/include/wx/stringimpl.h index bc95dbf025..c7029974c9 100644 --- a/include/wx/stringimpl.h +++ b/include/wx/stringimpl.h @@ -23,7 +23,10 @@ // ---------------------------------------------------------------------------- #include "wx/defs.h" // everybody should include this -#include "wx/wxchar.h" // for wxChar, wxStrlen() etc. +#include "wx/chartype.h" // for wxChar +#include "wx/wxcrtbase.h" // for wxStrlen() etc. + +#include // --------------------------------------------------------------------------- // macros @@ -40,6 +43,10 @@ // global pointer to empty string extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxEmptyString; +#if wxUSE_UNICODE_UTF8 +// FIXME-UTF8: we should have only one wxEmptyString +extern WXDLLIMPEXP_DATA_BASE(const wxStringCharType*) wxEmptyStringImpl; +#endif // ---------------------------------------------------------------------------- @@ -55,17 +62,20 @@ extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxEmptyString; #include #include "wx/afterstd.h" +#ifdef HAVE_STD_WSTRING + typedef std::wstring wxStdWideString; +#else + typedef std::basic_string wxStdWideString; +#endif + #if wxUSE_UNICODE_WCHAR - #ifdef HAVE_STD_WSTRING - typedef std::wstring wxStdString; - #else - typedef std::basic_string wxStdString; - #endif + typedef wxStdWideString wxStdString; #else typedef std::string wxStdString; #endif -#endif // need +#endif // wxUSE_STL_BASED_WXSTRING || wxUSE_STD_STRING + #if wxUSE_STL_BASED_WXSTRING @@ -95,8 +105,8 @@ struct WXDLLIMPEXP_BASE wxStringData size_t nDataLength, // actual string length nAllocLength; // allocated memory size - // mimics declaration 'wxChar data[nAllocLength]' - wxChar* data() const { return (wxChar*)(this + 1); } + // mimics declaration 'wxStringCharType data[nAllocLength]' + wxStringCharType* data() const { return (wxStringCharType*)(this + 1); } // empty string has a special ref count so it's never deleted bool IsEmpty() const { return (nRefs == -1); } @@ -141,7 +151,11 @@ protected: // string (re)initialization functions // initializes the string to the empty value (must be called only from // ctors, use Reinit() otherwise) +#if wxUSE_UNICODE_UTF8 + void Init() { m_pchData = (wxStringCharType *)wxEmptyStringImpl; } // FIXME-UTF8 +#else void Init() { m_pchData = (wxStringCharType *)wxEmptyString; } +#endif // initializes the string with (a part of) C-string void InitWith(const wxStringCharType *psz, size_t nPos = 0, size_t nLen = npos); // as Init, but also frees old data @@ -175,8 +189,104 @@ public: typedef const value_type& const_reference; typedef value_type* pointer; typedef const value_type* const_pointer; - typedef value_type *iterator; - typedef const value_type *const_iterator; + + // macro to define the bulk of iterator and const_iterator classes + #define WX_DEFINE_STRINGIMPL_ITERATOR(iterator_name, ref_type, ptr_type) \ + public: \ + typedef wxStringCharType value_type; \ + typedef ref_type reference; \ + typedef ptr_type pointer; \ + typedef int difference_type; \ + \ + iterator_name() : m_ptr(NULL) { } \ + iterator_name(pointer ptr) : m_ptr(ptr) { } \ + \ + reference operator*() const { return *m_ptr; } \ + \ + iterator_name& operator++() { m_ptr++; return *this; } \ + iterator_name operator++(int) \ + { \ + const iterator_name tmp(*this); \ + m_ptr++; \ + return tmp; \ + } \ + \ + iterator_name& operator--() { m_ptr--; return *this; } \ + iterator_name operator--(int) \ + { \ + const iterator_name tmp(*this); \ + m_ptr--; \ + return tmp; \ + } \ + \ + iterator_name operator+(int n) const \ + { return iterator_name(m_ptr + n); } \ + iterator_name operator+(size_t n) const \ + { return iterator_name(m_ptr + n); } \ + iterator_name operator-(int n) const \ + { return iterator_name(m_ptr - n); } \ + iterator_name operator-(size_t n) const \ + { return iterator_name(m_ptr - n); } \ + iterator_name& operator+=(int n) \ + { m_ptr += n; return *this; } \ + iterator_name& operator+=(size_t n) \ + { m_ptr += n; return *this; } \ + iterator_name& operator-=(int n) \ + { m_ptr -= n; return *this; } \ + iterator_name& operator-=(size_t n) \ + { m_ptr -= n; return *this; } \ + \ + difference_type operator-(const iterator_name& i) const \ + { return m_ptr - i.m_ptr; } \ + \ + bool operator==(const iterator_name& i) const \ + { return m_ptr == i.m_ptr; } \ + bool operator!=(const iterator_name& i) const \ + { return m_ptr != i.m_ptr; } \ + \ + bool operator<(const iterator_name& i) const \ + { return m_ptr < i.m_ptr; } \ + bool operator>(const iterator_name& i) const \ + { return m_ptr > i.m_ptr; } \ + bool operator<=(const iterator_name& i) const \ + { return m_ptr <= i.m_ptr; } \ + bool operator>=(const iterator_name& i) const \ + { return m_ptr >= i.m_ptr; } \ + \ + private: \ + /* for wxStringImpl use only */ \ + operator pointer() const { return m_ptr; } \ + \ + friend class wxStringImpl; \ + \ + pointer m_ptr + + // we need to declare const_iterator in wxStringImpl scope, the friend + // declaration inside iterator class itself is not enough, or at least not + // for g++ 3.4 (g++ 4 is ok) + class WXDLLIMPEXP_FWD_BASE const_iterator; + + class WXDLLIMPEXP_BASE iterator + { + WX_DEFINE_STRINGIMPL_ITERATOR(iterator, + wxStringCharType&, + wxStringCharType*); + + friend class const_iterator; + }; + + class WXDLLIMPEXP_BASE const_iterator + { + public: + const_iterator(iterator i) : m_ptr(i.m_ptr) { } + + WX_DEFINE_STRINGIMPL_ITERATOR(const_iterator, + const wxStringCharType&, + const wxStringCharType*); + }; + + #undef WX_DEFINE_STRINGIMPL_ITERATOR + // constructors and destructor // ctor for an empty string @@ -213,8 +323,19 @@ public: size_t strLen = str.length() - nPos; nLen = strLen < nLen ? strLen : nLen; InitWith(str.c_str(), nPos, nLen); } - // take all characters from pStart to pEnd - wxStringImpl(const void *pStart, const void *pEnd); + // take everything between start and end + wxStringImpl(const_iterator start, const_iterator end); + + + // ctor from and conversion to std::string +#if wxUSE_STD_STRING + wxStringImpl(const wxStdString& impl) + { InitWith(impl.c_str(), 0, impl.length()); } + + operator wxStdString() const + { return wxStdString(c_str(), length()); } +#endif + // dtor is not virtual, this class must not be inherited from! ~wxStringImpl() @@ -333,9 +454,9 @@ public: // insert first n (or all if n == npos) characters of sz wxStringImpl& insert(size_t nPos, const wxStringCharType *sz, size_t n = npos); // insert n copies of ch - wxStringImpl& insert(size_t nPos, size_t n, wxStringCharType ch)// FIXME-UTF8: tricky + wxStringImpl& insert(size_t nPos, size_t n, wxStringCharType ch) { return insert(nPos, wxStringImpl(n, ch)); } - iterator insert(iterator it, wxStringCharType ch) // FIXME-UTF8: tricky + iterator insert(iterator it, wxStringCharType ch) { size_t idx = it - begin(); insert(idx, 1, ch); return begin() + idx; } void insert(iterator it, const_iterator first, const_iterator last) { insert(it - begin(), first, last - first); } @@ -395,7 +516,7 @@ public: // find first n characters of sz size_t find(const wxStringCharType* sz, size_t nStart = 0, size_t n = npos) const; - // find the first occurence of character ch after nStart + // find the first occurrence of character ch after nStart size_t find(wxStringCharType ch, size_t nStart = 0) const; // rfind() family is exactly like find() but works right to left @@ -421,14 +542,12 @@ public: // string += char wxStringImpl& operator+=(wxStringCharType ch) { return append(1, ch); } -#if !wxUSE_UNICODE_UTF8 // helpers for wxStringBuffer and wxStringBufferLength wxStringCharType *DoGetWriteBuf(size_t nLen); void DoUngetWriteBuf(); void DoUngetWriteBuf(size_t nLen); -#endif - friend class WXDLLIMPEXP_BASE wxString; + friend class WXDLLIMPEXP_FWD_BASE wxString; }; #endif // !wxUSE_STL_BASED_WXSTRING