X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/59953bf4ba167311fb0cd2c2c0f3d5d0475b98c8..d642db66a5efc82d374b813022c72ba88bc50839:/include/wx/stringimpl.h?ds=sidebyside diff --git a/include/wx/stringimpl.h b/include/wx/stringimpl.h index 1b3f172c94..674a3eb5f9 100644 --- a/include/wx/stringimpl.h +++ b/include/wx/stringimpl.h @@ -11,7 +11,7 @@ /* This header implements std::string-like string class, wxStringImpl, that is - used by wxString to store the data. Alternatively, if wxUSE_STL=1, + used by wxString to store the data. Alternatively, if wxUSE_STD_STRING=1, wxStringImpl is just a typedef to std:: string class. */ @@ -23,7 +23,8 @@ // ---------------------------------------------------------------------------- #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 @@ -33,7 +34,7 @@ // implementation only #define wxASSERT_VALID_INDEX(i) \ - wxASSERT_MSG( (size_t)(i) <= length(), _T("invalid index in wxString") ) + wxASSERT_MSG( (size_t)(i) <= length(), wxT("invalid index in wxString") ) // ---------------------------------------------------------------------------- @@ -49,10 +50,15 @@ extern WXDLLIMPEXP_DATA_BASE(const wxStringCharType*) wxEmptyStringImpl; // ---------------------------------------------------------------------------- -// deal with STL/non-STL/non-STL-but-wxUSE_STD_STRING +// deal with various build options // ---------------------------------------------------------------------------- -#define wxUSE_STL_BASED_WXSTRING wxUSE_STL +// we use STL-based string internally if we use std::string at all now, there +// should be no reason to prefer our internal implement but if you really need +// it you can predefine wxUSE_STL_BASED_WXSTRING as 0 when building the library +#ifndef wxUSE_STL_BASED_WXSTRING + #define wxUSE_STL_BASED_WXSTRING wxUSE_STD_STRING +#endif // in both cases we need to define wxStdString #if wxUSE_STL_BASED_WXSTRING || wxUSE_STD_STRING @@ -82,8 +88,10 @@ extern WXDLLIMPEXP_DATA_BASE(const wxStringCharType*) wxEmptyStringImpl; #undef wxUSE_STD_STRING #define wxUSE_STD_STRING 1 + // the versions of std::string included with gcc 2.95 and VC6 (for which + // _MSC_VER == 1200) and eVC4 (_MSC_VER == 1201) lack clear() method #if (defined(__GNUG__) && (__GNUG__ < 3)) || \ - (defined(_MSC_VER) && (_MSC_VER <= 1200)) + !wxCHECK_VISUALC_VERSION(7) || defined(__EVC4__) #define wxSTRING_BASE_HASNT_CLEAR #endif @@ -197,6 +205,7 @@ public: 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; } \ @@ -217,21 +226,13 @@ public: return tmp; \ } \ \ - iterator_name operator+(int n) const \ - { return iterator_name(m_ptr + n); } \ - iterator_name operator+(size_t n) const \ + iterator_name operator+(ptrdiff_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 \ + iterator_name operator-(ptrdiff_t n) const \ { return iterator_name(m_ptr - n); } \ - iterator_name& operator+=(int n) \ + iterator_name& operator+=(ptrdiff_t 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) \ + iterator_name& operator-=(ptrdiff_t n) \ { m_ptr -= n; return *this; } \ \ difference_type operator-(const iterator_name& i) const \ @@ -253,18 +254,18 @@ public: \ private: \ /* for wxStringImpl use only */ \ - operator pointer() const { return m_ptr; } \ + pointer GetPtr() const { return m_ptr; } \ \ - friend class WXDLLIMPEXP_BASE wxStringImpl; \ + 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 const_iterator; + class WXDLLIMPEXP_FWD_BASE const_iterator; - class iterator + class WXDLLIMPEXP_BASE iterator { WX_DEFINE_STRINGIMPL_ITERATOR(iterator, wxStringCharType&, @@ -273,7 +274,7 @@ public: friend class const_iterator; }; - class const_iterator + class WXDLLIMPEXP_BASE const_iterator { public: const_iterator(iterator i) : m_ptr(i.m_ptr) { } @@ -293,7 +294,7 @@ public: wxStringImpl(const wxStringImpl& stringSrc) { wxASSERT_MSG( stringSrc.GetStringData()->IsValid(), - _T("did you forget to call UngetWriteBuf()?") ); + wxT("did you forget to call UngetWriteBuf()?") ); if ( stringSrc.empty() ) { // nothing to do for an empty string @@ -316,7 +317,7 @@ public: wxStringImpl(const wxStringImpl& str, size_t nPos, size_t nLen) { wxASSERT_MSG( str.GetStringData()->IsValid(), - _T("did you forget to call UngetWriteBuf()?") ); + wxT("did you forget to call UngetWriteBuf()?") ); Init(); size_t strLen = str.length() - nPos; nLen = strLen < nLen ? strLen : nLen; InitWith(str.c_str(), nPos, nLen); @@ -334,23 +335,24 @@ public: { return wxStdString(c_str(), length()); } #endif +#if defined(__VISUALC__) && (__VISUALC__ >= 1200) + // disable warning about Unlock() below not being inlined (first, it + // seems to be inlined nevertheless and second, even if it isn't, there + // is nothing we can do about this + #pragma warning(push) + #pragma warning (disable:4714) +#endif // dtor is not virtual, this class must not be inherited from! ~wxStringImpl() { -#if defined(__VISUALC__) && (__VISUALC__ >= 1200) - //RN - according to the above VC++ does indeed inline this, - //even though it spits out two warnings - #pragma warning (disable:4714) -#endif - GetStringData()->Unlock(); } #if defined(__VISUALC__) && (__VISUALC__ >= 1200) - //re-enable inlining warning - #pragma warning (default:4714) + #pragma warning(pop) #endif + // overloaded assignment // from another wxString wxStringImpl& operator=(const wxStringImpl& stringSrc); @@ -377,9 +379,11 @@ public: // lib.string.access // return the character at position n + value_type operator[](size_type n) const { return m_pchData[n]; } value_type at(size_type n) const { wxASSERT_VALID_INDEX( n ); return m_pchData[n]; } // returns the writable character at position n + reference operator[](size_type n) { CopyBeforeWrite(); return m_pchData[n]; } reference at(size_type n) { wxASSERT_VALID_INDEX( n ); @@ -400,32 +404,32 @@ public: { ConcatSelf(str.length(), str.c_str()); return *this; } // append first n (or all if n == npos) characters of sz wxStringImpl& append(const wxStringCharType *sz) - { ConcatSelf(Strsize(sz), sz); return *this; } + { ConcatSelf(wxStrlen(sz), sz); return *this; } wxStringImpl& append(const wxStringCharType *sz, size_t n) { ConcatSelf(n, sz); return *this; } // append n copies of ch wxStringImpl& append(size_t n, wxStringCharType ch); // append from first to last wxStringImpl& append(const_iterator first, const_iterator last) - { ConcatSelf(last - first, first); return *this; } + { ConcatSelf(last - first, first.GetPtr()); return *this; } // same as `this_string = str' wxStringImpl& assign(const wxStringImpl& str) { return *this = str; } // same as ` = str[pos..pos + n] wxStringImpl& assign(const wxStringImpl& str, size_t pos, size_t n) - { clear(); return append(str, pos, n); } + { return replace(0, npos, str, pos, n); } // same as `= first n (or all if n == npos) characters of sz' wxStringImpl& assign(const wxStringCharType *sz) - { clear(); return append(sz, Strsize(sz)); } + { return replace(0, npos, sz, wxStrlen(sz)); } wxStringImpl& assign(const wxStringCharType *sz, size_t n) - { clear(); return append(sz, n); } + { return replace(0, npos, sz, n); } // same as `= n copies of ch' wxStringImpl& assign(size_t n, wxStringCharType ch) - { clear(); return append(n, ch); } + { return replace(0, npos, n, ch); } // assign from first to last wxStringImpl& assign(const_iterator first, const_iterator last) - { clear(); return append(first, last); } + { return replace(begin(), end(), first, last); } // first valid index position const_iterator begin() const { return m_pchData; } @@ -457,7 +461,7 @@ public: 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); } + { insert(it - begin(), first.GetPtr(), last - first); } void insert(iterator it, size_type n, wxStringCharType ch) { insert(it - begin(), n, ch); } @@ -476,18 +480,23 @@ public: const wxStringCharType* data() const { return m_pchData; } // replaces the substring of length nLen starting at nStart - wxStringImpl& replace(size_t nStart, size_t nLen, const wxStringCharType* sz); + wxStringImpl& replace(size_t nStart, size_t nLen, const wxStringCharType* sz) + { return replace(nStart, nLen, sz, npos); } // replaces the substring of length nLen starting at nStart wxStringImpl& replace(size_t nStart, size_t nLen, const wxStringImpl& str) - { return replace(nStart, nLen, str.c_str()); } + { return replace(nStart, nLen, str.c_str(), str.length()); } // replaces the substring with nCount copies of ch - wxStringImpl& replace(size_t nStart, size_t nLen, size_t nCount, wxStringCharType ch); + wxStringImpl& replace(size_t nStart, size_t nLen, + size_t nCount, wxStringCharType ch) + { return replace(nStart, nLen, wxStringImpl(nCount, ch)); } // replaces a substring with another substring wxStringImpl& replace(size_t nStart, size_t nLen, - const wxStringImpl& str, size_t nStart2, size_t nLen2); + const wxStringImpl& str, size_t nStart2, size_t nLen2) + { return replace(nStart, nLen, str.substr(nStart2, nLen2)); } // replaces the substring with first nCount chars of sz wxStringImpl& replace(size_t nStart, size_t nLen, const wxStringCharType* sz, size_t nCount); + wxStringImpl& replace(iterator first, iterator last, const_pointer s) { return replace(first - begin(), last - first, s); } wxStringImpl& replace(iterator first, iterator last, const_pointer s, @@ -499,7 +508,7 @@ public: { return replace(first - begin(), last - first, n, c); } wxStringImpl& replace(iterator first, iterator last, const_iterator first1, const_iterator last1) - { return replace(first - begin(), last - first, first1, last1 - first1); } + { return replace(first - begin(), last - first, first1.GetPtr(), last1 - first1); } // swap two strings void swap(wxStringImpl& str); @@ -540,21 +549,12 @@ 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 - -private: -#if wxUSE_UNICODE_UTF8 - static size_t Strsize(const wxStringCharType *s) { return strlen(s); } -#else - static size_t Strsize(const wxStringCharType *s) { return wxStrlen(s); } -#endif - friend class WXDLLIMPEXP_BASE wxString; + friend class WXDLLIMPEXP_FWD_BASE wxString; }; #endif // !wxUSE_STL_BASED_WXSTRING