X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/89360a8c873add3f68e05191d9311cc10a49442d..e51636824377587ae2406e144702bc748ee90ae2:/include/wx/stringimpl.h diff --git a/include/wx/stringimpl.h b/include/wx/stringimpl.h index b680b52cf1..00d24e2242 100644 --- a/include/wx/stringimpl.h +++ b/include/wx/stringimpl.h @@ -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 @@ -42,13 +43,28 @@ // 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 // ---------------------------------------------------------------------------- // deal with STL/non-STL/non-STL-but-wxUSE_STD_STRING // ---------------------------------------------------------------------------- -#define wxUSE_STL_BASED_WXSTRING wxUSE_STL +// using STL implies using std::string +#if wxUSE_STL + #undef wxUSE_STD_STRING + #define wxUSE_STD_STRING 1 +#endif + +// 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 @@ -57,17 +73,20 @@ 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 @@ -97,8 +116,8 @@ 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); } @@ -143,7 +162,11 @@ 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 @@ -186,6 +209,7 @@ 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; } \ @@ -206,21 +230,13 @@ public: return tmp; \ } \ \ - iterator_name operator+(int n) const \ + iterator_name operator+(ptrdiff_t 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 \ + iterator_name operator-(ptrdiff_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) \ + iterator_name& operator+=(ptrdiff_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 \ @@ -242,18 +258,18 @@ 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&, @@ -262,7 +278,7 @@ public: friend class const_iterator; }; - class const_iterator + class WXDLLIMPEXP_BASE const_iterator { public: const_iterator(iterator i) : m_ptr(i.m_ptr) { } @@ -313,6 +329,17 @@ public: // 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() { @@ -355,9 +382,11 @@ 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 ); @@ -385,25 +414,25 @@ public: 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, wxStrlen(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; } @@ -430,12 +459,12 @@ 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); } + { insert(it - begin(), first.GetPtr(), last - first); } void insert(iterator it, size_type n, wxStringCharType ch) { insert(it - begin(), n, ch); } @@ -454,18 +483,23 @@ 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, @@ -477,7 +511,7 @@ 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); @@ -518,14 +552,12 @@ 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