- // points to data preceded by wxStringData structure with ref count info
- wxChar *m_pchData;
-
- // accessor to string data
- wxStringData* GetStringData() const { return (wxStringData*)m_pchData - 1; }
-
- // string (re)initialization functions
- // initializes the string to the empty value (must be called only from
- // ctors, use Reinit() otherwise)
- void Init() { m_pchData = (wxChar *)wxEmptyString; }
- // initializes the string with (a part of) C-string
- void InitWith(const wxChar *psz, size_t nPos = 0, size_t nLen = npos);
- // as Init, but also frees old data
- void Reinit() { GetStringData()->Unlock(); Init(); }
-
- // memory allocation
- // allocates memory for string of length nLen
- bool AllocBuffer(size_t nLen);
- // copies data to another string
- bool AllocCopy(wxString&, int, int) const;
- // effectively copies data to string
- bool AssignCopy(size_t, const wxChar *);
-
- // append a (sub)string
- bool ConcatSelf(size_t nLen, const wxChar *src, size_t nMaxLen);
- bool ConcatSelf(size_t nLen, const wxChar *src)
- { return ConcatSelf(nLen, src, nLen); }
-
- // functions called before writing to the string: they copy it if there
- // are other references to our data (should be the only owner when writing)
- bool CopyBeforeWrite();
- bool AllocBeforeWrite(size_t);
-
- // compatibility with wxString
- bool Alloc(size_t nLen);
-public:
- // standard types
- typedef wxChar value_type;
- typedef wxChar char_type;
- typedef size_t size_type;
- typedef value_type& reference;
- 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;
-
-#define wxSTRING_REVERSE_ITERATOR(name, const_or_not) \
- class name \
- { \
- public: \
- typedef wxChar value_type; \
- typedef const_or_not value_type& reference; \
- typedef const_or_not value_type *pointer; \
- typedef const_or_not value_type *iterator_type; \
- \
- name(iterator_type i) : m_cur(i) { } \
- name(const name& ri) : m_cur(ri.m_cur) { } \
- \
- iterator_type base() const { return m_cur; } \
- \
- reference operator*() const { return *(m_cur - 1); } \
- \
- name& operator++() { --m_cur; return *this; } \
- name operator++(int) { name tmp = *this; --m_cur; return tmp; } \
- name& operator--() { ++m_cur; return *this; } \
- name operator--(int) { name tmp = *this; ++m_cur; return tmp; } \
- \
- bool operator==(name ri) const { return m_cur == ri.m_cur; } \
- bool operator!=(name ri) const { return !(*this == ri); } \
- \
- private: \
- iterator_type m_cur; \
- }
-
- wxSTRING_REVERSE_ITERATOR(const_reverse_iterator, const);
-
- #define wxSTRING_CONST
- wxSTRING_REVERSE_ITERATOR(reverse_iterator, wxSTRING_CONST);
- #undef wxSTRING_CONST
-
- #undef wxSTRING_REVERSE_ITERATOR
-
-
- // constructors and destructor
- // ctor for an empty string
- wxStringBase() { Init(); }
- // copy ctor
- wxStringBase(const wxStringBase& stringSrc)
- {
- wxASSERT_MSG( stringSrc.GetStringData()->IsValid(),
- _T("did you forget to call UngetWriteBuf()?") );
-
- if ( stringSrc.empty() ) {
- // nothing to do for an empty string
- Init();
- }
- else {
- m_pchData = stringSrc.m_pchData; // share same data
- GetStringData()->Lock(); // => one more copy
- }
- }
- // string containing nRepeat copies of ch
- wxStringBase(size_type nRepeat, wxChar ch);
- // ctor takes first nLength characters from C string
- // (default value of npos means take all the string)
- wxStringBase(const wxChar *psz)
- { InitWith(psz, 0, npos); }
- wxStringBase(const wxChar *psz, size_t nLength)
- { InitWith(psz, 0, nLength); }
- wxStringBase(const wxChar *psz,
- const wxMBConv& WXUNUSED(conv),
- size_t nLength = npos)
- { InitWith(psz, 0, nLength); }
- // take nLen chars starting at nPos
- wxStringBase(const wxStringBase& str, size_t nPos, size_t nLen)
- {
- wxASSERT_MSG( str.GetStringData()->IsValid(),
- _T("did you forget to call UngetWriteBuf()?") );
- Init();
- size_t strLen = str.length() - nPos; nLen = strLen < nLen ? strLen : nLen;
- InitWith(str.c_str(), nPos, nLen);
- }
- // take all characters from pStart to pEnd
- wxStringBase(const void *pStart, const void *pEnd);
-
- // dtor is not virtual, this class must not be inherited from!
- ~wxStringBase()
- {
-#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)
-#endif
- // overloaded assignment
- // from another wxString
- wxStringBase& operator=(const wxStringBase& stringSrc);
- // from a character
- wxStringBase& operator=(wxChar ch);
- // from a C string
- wxStringBase& operator=(const wxChar *psz);
-
- // return the length of the string
- size_type length() const { return GetStringData()->nDataLength; }
- // return the length of the string
- size_type size() const { return length(); }
- // return the maximum size of the string
- size_type max_size() const { return wxSTRING_MAXLEN; }
- // resize the string, filling the space with c if c != 0
- void resize(size_t nSize, wxChar ch = wxT('\0'));
- // delete the contents of the string
- void clear() { erase(0, npos); }
- // returns true if the string is empty
- bool empty() const { return length() == 0; }
- // inform string about planned change in size
- void reserve(size_t sz) { Alloc(sz); }
- size_type capacity() const { return GetStringData()->nAllocLength; }
-
- // lib.string.access
- // return the character at position n
- value_type at(size_type n) const
- { wxASSERT_VALID_INDEX( n ); return m_pchData[n]; }
- // returns the writable character at position n
- reference at(size_type n)
- { wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
-
- // lib.string.modifiers
- // append elements str[pos], ..., str[pos+n]
- wxStringBase& append(const wxStringBase& str, size_t pos, size_t n)
- {
- wxASSERT(pos <= str.length());
- ConcatSelf(n, str.c_str() + pos, str.length() - pos);
- return *this;
- }
- // append a string
- wxStringBase& append(const wxStringBase& str)
- { ConcatSelf(str.length(), str.c_str()); return *this; }
- // append first n (or all if n == npos) characters of sz
- wxStringBase& append(const wxChar *sz)
- { ConcatSelf(wxStrlen(sz), sz); return *this; }
- wxStringBase& append(const wxChar *sz, size_t n)
- { ConcatSelf(n, sz); return *this; }
- // append n copies of ch
- wxStringBase& append(size_t n, wxChar ch);
- // append from first to last
- wxStringBase& append(const_iterator first, const_iterator last)
- { ConcatSelf(last - first, first); return *this; }
-
- // same as `this_string = str'
- wxStringBase& assign(const wxStringBase& str)
- { return *this = str; }
- // same as ` = str[pos..pos + n]
- wxStringBase& assign(const wxStringBase& str, size_t pos, size_t n)
- { clear(); return append(str, pos, n); }
- // same as `= first n (or all if n == npos) characters of sz'
- wxStringBase& assign(const wxChar *sz)
- { clear(); return append(sz, wxStrlen(sz)); }
- wxStringBase& assign(const wxChar *sz, size_t n)
- { clear(); return append(sz, n); }
- // same as `= n copies of ch'
- wxStringBase& assign(size_t n, wxChar ch)
- { clear(); return append(n, ch); }
- // assign from first to last
- wxStringBase& assign(const_iterator first, const_iterator last)
- { clear(); return append(first, last); }
-
- // first valid index position
- const_iterator begin() const { return m_pchData; }
- iterator begin();
- // position one after the last valid one
- const_iterator end() const { return m_pchData + length(); }
- iterator end();
-
- // first element of the reversed string
- const_reverse_iterator rbegin() const { return const_reverse_iterator(end()); }
- reverse_iterator rbegin() { return reverse_iterator(end()); }
- // one beyond the end of the reversed string
- const_reverse_iterator rend() const { return const_reverse_iterator(begin()); }
- reverse_iterator rend() { return reverse_iterator(begin()); }
-
- // insert another string
- wxStringBase& insert(size_t nPos, const wxStringBase& str)
- {
- wxASSERT( str.GetStringData()->IsValid() );
- return insert(nPos, str.c_str(), str.length());
- }
- // insert n chars of str starting at nStart (in str)
- wxStringBase& insert(size_t nPos, const wxStringBase& str, size_t nStart, size_t n)
- {
- wxASSERT( str.GetStringData()->IsValid() );
- wxASSERT( nStart < str.length() );
- size_t strLen = str.length() - nStart;
- n = strLen < n ? strLen : n;
- return insert(nPos, str.c_str() + nStart, n);
- }
- // insert first n (or all if n == npos) characters of sz
- wxStringBase& insert(size_t nPos, const wxChar *sz, size_t n = npos);
- // insert n copies of ch
- wxStringBase& insert(size_t nPos, size_t n, wxChar ch)
- { return insert(nPos, wxStringBase(n, ch)); }
- iterator insert(iterator it, wxChar 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); }
- void insert(iterator it, size_type n, wxChar ch)
- { insert(it - begin(), n, ch); }
-
- // delete characters from nStart to nStart + nLen
- wxStringBase& erase(size_type pos = 0, size_type n = npos);
- iterator erase(iterator first, iterator last)
- {
- size_t idx = first - begin();
- erase(idx, last - first);
- return begin() + idx;
- }
- iterator erase(iterator first);
-
- // explicit conversion to C string (use this with printf()!)
- const wxChar* c_str() const { return m_pchData; }
- const wxChar* data() const { return m_pchData; }
-
- // replaces the substring of length nLen starting at nStart
- wxStringBase& replace(size_t nStart, size_t nLen, const wxChar* sz);
- // replaces the substring of length nLen starting at nStart
- wxStringBase& replace(size_t nStart, size_t nLen, const wxStringBase& str)
- { return replace(nStart, nLen, str.c_str()); }
- // replaces the substring with nCount copies of ch
- wxStringBase& replace(size_t nStart, size_t nLen, size_t nCount, wxChar ch);
- // replaces a substring with another substring
- wxStringBase& replace(size_t nStart, size_t nLen,
- const wxStringBase& str, size_t nStart2, size_t nLen2);
- // replaces the substring with first nCount chars of sz
- wxStringBase& replace(size_t nStart, size_t nLen,
- const wxChar* sz, size_t nCount);
- wxStringBase& replace(iterator first, iterator last, const_pointer s)
- { return replace(first - begin(), last - first, s); }
- wxStringBase& replace(iterator first, iterator last, const_pointer s,
- size_type n)
- { return replace(first - begin(), last - first, s, n); }
- wxStringBase& replace(iterator first, iterator last, const wxStringBase& s)
- { return replace(first - begin(), last - first, s); }
- wxStringBase& replace(iterator first, iterator last, size_type n, wxChar c)
- { return replace(first - begin(), last - first, n, c); }
- wxStringBase& replace(iterator first, iterator last,
- const_iterator first1, const_iterator last1)
- { return replace(first - begin(), last - first, first1, last1 - first1); }
-
- // swap two strings
- void swap(wxStringBase& str);
-
- // All find() functions take the nStart argument which specifies the
- // position to start the search on, the default value is 0. All functions
- // return npos if there were no match.
-
- // find a substring
- size_t find(const wxStringBase& str, size_t nStart = 0) const;
-
- // find first n characters of sz
- size_t find(const wxChar* sz, size_t nStart = 0, size_t n = npos) const;
-
- // find the first occurence of character ch after nStart
- size_t find(wxChar ch, size_t nStart = 0) const;
-
- // rfind() family is exactly like find() but works right to left
-
- // as find, but from the end
- size_t rfind(const wxStringBase& str, size_t nStart = npos) const;
-
- // as find, but from the end
- size_t rfind(const wxChar* sz, size_t nStart = npos,
- size_t n = npos) const;
- // as find, but from the end
- size_t rfind(wxChar ch, size_t nStart = npos) const;
projects / wxWidgets.git / blobdiff