///////////////////////////////////////////////////////////////////////////////
// Name: wx/string.h
-// Purpose: wxString and wxArrayString classes
+// Purpose: wxString class
// Author: Vadim Zeitlin
// Modified by:
// Created: 29/01/98
missing from string.h.
*/
-#ifndef _WX_WXSTRINGH__
-#define _WX_WXSTRINGH__
+#ifndef _WX_WXSTRING_H__
+#define _WX_WXSTRING_H__
// ----------------------------------------------------------------------------
// headers
#include <strings.h> // for strcasecmp()
#endif // HAVE_STRCASECMP_IN_STRINGS_H
-#ifdef __WXPALMOS__
- #include <StringMgr.h>
-#endif
-
-#include "wx/wxchar.h" // for wxChar, wxStrlen() etc.
-#include "wx/unichar.h"
+#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
+#include "wx/stringimpl.h"
+#include "wx/stringops.h"
+#include "wx/unichar.h"
+
+// by default we cache the mapping of the positions in UTF-8 string to the byte
+// offset as this results in noticeable performance improvements for loops over
+// strings using indices; comment out this line to disable this
+//
+// notice that this optimization is well worth using even in debug builds as it
+// changes asymptotic complexity of algorithms using indices to iterate over
+// wxString back to expected linear from quadratic
+//
+// also notice that wxTLS_TYPE() (__declspec(thread) in this case) is unsafe to
+// use in DLL build under pre-Vista Windows so we disable this code for now, if
+// anybody really needs to use UTF-8 build under Windows with this optimization
+// it would have to be re-tested and probably corrected
+// CS: under OSX release builds the string destructor/cache cleanup sometimes
+// crashes, disable until we find the true reason or a better workaround
+#if wxUSE_UNICODE_UTF8 && !defined(__WINDOWS__) && !defined(__WXOSX__)
+ #define wxUSE_STRING_POS_CACHE 1
+#else
+ #define wxUSE_STRING_POS_CACHE 0
+#endif
+
+#if wxUSE_STRING_POS_CACHE
+ #include "wx/tls.h"
+
+ // change this 0 to 1 to enable additional (very expensive) asserts
+ // verifying that string caching logic works as expected
+ #if 0
+ #define wxSTRING_CACHE_ASSERT(cond) wxASSERT(cond)
+ #else
+ #define wxSTRING_CACHE_ASSERT(cond)
+ #endif
+#endif // wxUSE_STRING_POS_CACHE
+
+class WXDLLIMPEXP_FWD_BASE wxString;
+
+// unless this symbol is predefined to disable the compatibility functions, do
+// use them
+#ifndef WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
+ #define WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER 1
+#endif
-class WXDLLIMPEXP_BASE wxString;
+namespace wxPrivate
+{
+ template <typename T> struct wxStringAsBufHelper;
+}
// ---------------------------------------------------------------------------
// macros
#define wxMBSTRINGCAST (char *)(const char *)
#define wxWCSTRINGCAST (wchar_t *)(const wchar_t *)
-// implementation only
-#define wxASSERT_VALID_INDEX(i) \
- wxASSERT_MSG( (size_t)(i) <= length(), _T("invalid index in wxString") )
-
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// deprecated in favour of wxString::npos, don't use in new code
//
// maximum possible length for a string means "take all string" everywhere
-#define wxSTRING_MAXLEN wxStringBase::npos
+#define wxSTRING_MAXLEN wxString::npos
#endif // WXWIN_COMPATIBILITY_2_6
-// ----------------------------------------------------------------------------
-// global data
-// ----------------------------------------------------------------------------
-
-// global pointer to empty string
-extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxEmptyString;
-
// ---------------------------------------------------------------------------
// global functions complementing standard C string library replacements for
// strlen() and portable strcasecmp()
} while ( c1 && (c1 == c2) );
return c1 - c2;
-#elif defined(__VISUALC__) || ( defined(__MWERKS__) && defined(__INTEL__) )
+#elif defined(__VISUALC__)
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__)
return stricmp(psz1, psz2);
#elif defined(__WXPM__)
return stricmp(psz1, psz2);
-#elif defined(__WXPALMOS__) || \
- defined(HAVE_STRCASECMP_IN_STRING_H) || \
+#elif defined(HAVE_STRCASECMP_IN_STRING_H) || \
defined(HAVE_STRCASECMP_IN_STRINGS_H) || \
defined(__GNUWIN32__)
return strcasecmp(psz1, psz2);
-#elif defined(__MWERKS__) && !defined(__INTEL__)
- register char c1, c2;
- do {
- c1 = tolower(*psz1++);
- c2 = tolower(*psz2++);
- } while ( c1 && (c1 == c2) );
-
- return c1 - c2;
#else
// almost all compilers/libraries provide this function (unfortunately under
// different names), that's why we don't implement our own which will surely
#endif // WXWIN_COMPATIBILITY_2_8
// ----------------------------------------------------------------------------
-// deal with STL/non-STL/non-STL-but-wxUSE_STD_STRING
+// wxCStrData
// ----------------------------------------------------------------------------
-// FIXME-UTF8: using std::string as wxString base class is currently broken,
-// so we use the standard wxString with std::string conversion
-// enabled, this is API-compatible.
-#define wxUSE_STL_BASED_WXSTRING 0
-#if wxUSE_STL
- #undef wxUSE_STD_STRING
- #define wxUSE_STD_STRING 1
-#endif
-//#define wxUSE_STL_BASED_WXSTRING wxUSE_STL
+// Lightweight object returned by wxString::c_str() and implicitly convertible
+// to either const char* or const wchar_t*.
+class wxCStrData
+{
+private:
+ // Ctors; for internal use by wxString and wxCStrData only
+ wxCStrData(const wxString *str, size_t offset = 0, bool owned = false)
+ : m_str(str), m_offset(offset), m_owned(owned) {}
-// in both cases we need to define wxStdString
-#if wxUSE_STL_BASED_WXSTRING || wxUSE_STD_STRING
+public:
+ // Ctor constructs the object from char literal; they are needed to make
+ // operator?: compile and they intentionally take char*, not const char*
+ inline wxCStrData(char *buf);
+ inline wxCStrData(wchar_t *buf);
+ inline wxCStrData(const wxCStrData& data);
+
+ inline ~wxCStrData();
+
+ // AsWChar() and AsChar() can't be defined here as they use wxString and so
+ // must come after it and because of this won't be inlined when called from
+ // wxString methods (without a lot of work to extract these wxString methods
+ // from inside the class itself). But we still define them being inline
+ // below to let compiler inline them from elsewhere. And because of this we
+ // must declare them as inline here because otherwise some compilers give
+ // warnings about them, e.g. mingw32 3.4.5 warns about "<symbol> defined
+ // locally after being referenced with dllimport linkage" while IRIX
+ // mipsPro 7.4 warns about "function declared inline after being called".
+ inline const wchar_t* AsWChar() const;
+ operator const wchar_t*() const { return AsWChar(); }
+
+ inline const char* AsChar() const;
+ const unsigned char* AsUnsignedChar() const
+ { return (const unsigned char *) AsChar(); }
+ operator const char*() const { return AsChar(); }
+ operator const unsigned char*() const { return AsUnsignedChar(); }
-#include "wx/beforestd.h"
-#include <string>
-#include "wx/afterstd.h"
+ operator const void*() const { return AsChar(); }
-#if wxUSE_UNICODE
- #ifdef HAVE_STD_WSTRING
- typedef std::wstring wxStdString;
- #else
- typedef std::basic_string<wxChar> wxStdString;
- #endif
-#else
- typedef std::string wxStdString;
-#endif
+ // returns buffers that are valid as long as the associated wxString exists
+ const wxScopedCharBuffer AsCharBuf() const
+ {
+ return wxScopedCharBuffer::CreateNonOwned(AsChar());
+ }
-#endif // need <string>
+ const wxScopedWCharBuffer AsWCharBuf() const
+ {
+ return wxScopedWCharBuffer::CreateNonOwned(AsWChar());
+ }
-#if wxUSE_STL_BASED_WXSTRING
+ inline wxString AsString() const;
- // we don't need an extra ctor from std::string when copy ctor already does
- // the work
- #undef wxUSE_STD_STRING
- #define wxUSE_STD_STRING 0
+ // returns the value as C string in internal representation (equivalent
+ // to AsString().wx_str(), but more efficient)
+ const wxStringCharType *AsInternal() const;
- #if (defined(__GNUG__) && (__GNUG__ < 3)) || \
- (defined(_MSC_VER) && (_MSC_VER <= 1200))
- #define wxSTRING_BASE_HASNT_CLEAR
- #endif
+ // allow expressions like "c_str()[0]":
+ inline wxUniChar operator[](size_t n) const;
+ wxUniChar operator[](int n) const { return operator[](size_t(n)); }
+ wxUniChar operator[](long n) const { return operator[](size_t(n)); }
+#ifndef wxSIZE_T_IS_UINT
+ wxUniChar operator[](unsigned int n) const { return operator[](size_t(n)); }
+#endif // size_t != unsigned int
- typedef wxStdString wxStringBase;
-#else // if !wxUSE_STL_BASED_WXSTRING
+ // These operators are needed to emulate the pointer semantics of c_str():
+ // expressions like "wxChar *p = str.c_str() + 1;" should continue to work
+ // (we need both versions to resolve ambiguities). Note that this means
+ // the 'n' value is interpreted as addition to char*/wchar_t* pointer, it
+ // is *not* number of Unicode characters in wxString.
+ wxCStrData operator+(int n) const
+ { return wxCStrData(m_str, m_offset + n, m_owned); }
+ wxCStrData operator+(long n) const
+ { return wxCStrData(m_str, m_offset + n, m_owned); }
+ wxCStrData operator+(size_t n) const
+ { return wxCStrData(m_str, m_offset + n, m_owned); }
-#if !defined(HAVE_STD_STRING_COMPARE) && \
- (!defined(__WX_SETUP_H__) || wxUSE_STL_BASED_WXSTRING == 0)
- #define HAVE_STD_STRING_COMPARE
-#endif
+ // 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 <= (ptrdiff_t)m_offset,
+ wxT("attempt to construct address before the beginning of the string") );
+ return wxCStrData(m_str, m_offset - n, m_owned);
+ }
+ // this operator is needed to make expressions like "*c_str()" or
+ // "*(c_str() + 2)" work
+ inline wxUniChar operator*() const;
+
+private:
+ // the wxString this object was returned for
+ const wxString *m_str;
+ // Offset into c_str() return value. Note that this is *not* offset in
+ // m_str in Unicode characters. Instead, it is index into the
+ // char*/wchar_t* buffer returned by c_str(). It's interpretation depends
+ // on how is the wxCStrData instance used: if it is eventually cast to
+ // const char*, m_offset will be in bytes form string's start; if it is
+ // cast to const wchar_t*, it will be in wchar_t values.
+ size_t m_offset;
+ // should m_str be deleted, i.e. is it owned by us?
+ bool m_owned;
+
+ friend class WXDLLIMPEXP_FWD_BASE wxString;
+};
+
+// ----------------------------------------------------------------------------
+// wxStringPrintfMixin
// ---------------------------------------------------------------------------
-// string data prepended with some housekeeping info (used by wxString class),
-// is never used directly (but had to be put here to allow inlining)
-// ---------------------------------------------------------------------------
-struct WXDLLIMPEXP_BASE wxStringData
+// NB: VC6 has a bug that causes linker errors if you have template methods
+// in a class using __declspec(dllimport). The solution is to split such
+// class into two classes, one that contains the template methods and does
+// *not* use WXDLLIMPEXP_BASE and another class that contains the rest
+// (with DLL linkage).
+//
+// We only do this for VC6 here, because the code is less efficient
+// (Printf() has to use dynamic_cast<>) and because OpenWatcom compiler
+// cannot compile this code.
+
+#if defined(__VISUALC__) && __VISUALC__ < 1300
+ #define wxNEEDS_WXSTRING_PRINTF_MIXIN
+#endif
+
+#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
+// this class contains implementation of wxString's vararg methods, it's
+// exported from wxBase DLL
+class WXDLLIMPEXP_BASE wxStringPrintfMixinBase
+{
+protected:
+ wxStringPrintfMixinBase() {}
+
+#if !wxUSE_UTF8_LOCALE_ONLY
+ int DoPrintfWchar(const wxChar *format, ...);
+ static wxString DoFormatWchar(const wxChar *format, ...);
+#endif
+#if wxUSE_UNICODE_UTF8
+ int DoPrintfUtf8(const char *format, ...);
+ static wxString DoFormatUtf8(const char *format, ...);
+#endif
+};
+
+// this class contains template wrappers for wxString's vararg methods, it's
+// intentionally *not* exported from the DLL in order to fix the VC6 bug
+// described above
+class wxStringPrintfMixin : public wxStringPrintfMixinBase
{
- int nRefs; // reference count
- size_t nDataLength, // actual string length
- nAllocLength; // allocated memory size
+private:
+ // to further complicate things, we can't return wxString from
+ // wxStringPrintfMixin::Format() because wxString is not yet declared at
+ // this point; the solution is to use this fake type trait template - this
+ // way the compiler won't know the return type until Format() is used
+ // (this doesn't compile with Watcom, but VC6 compiles it just fine):
+ template<typename T> struct StringReturnType
+ {
+ typedef wxString type;
+ };
- // mimics declaration 'wxChar data[nAllocLength]'
- wxChar* data() const { return (wxChar*)(this + 1); }
+public:
+ // these are duplicated wxString methods, they're also declared below
+ // if !wxNEEDS_WXSTRING_PRINTF_MIXIN:
- // empty string has a special ref count so it's never deleted
- bool IsEmpty() const { return (nRefs == -1); }
- bool IsShared() const { return (nRefs > 1); }
+ // static wxString Format(const wString& format, ...) WX_ATTRIBUTE_PRINTF_1;
+ WX_DEFINE_VARARG_FUNC_SANS_N0(static typename StringReturnType<T1>::type,
+ Format, 1, (const wxFormatString&),
+ DoFormatWchar, DoFormatUtf8)
+ // 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. We can't move
+ // it to wxStrig, because it would shadow these versions of Format() then.
+ template<typename T>
+ inline static typename StringReturnType<T>::type
+ Format(const T& 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));
+ }
- // lock/unlock
- void Lock() { if ( !IsEmpty() ) nRefs++; }
+ // int Printf(const wxString& format, ...);
+ WX_DEFINE_VARARG_FUNC(int, Printf, 1, (const wxFormatString&),
+ DoPrintfWchar, DoPrintfUtf8)
+ // int sprintf(const wxString& format, ...) WX_ATTRIBUTE_PRINTF_2;
+ WX_DEFINE_VARARG_FUNC(int, sprintf, 1, (const wxFormatString&),
+ DoPrintfWchar, DoPrintfUtf8)
- // VC++ will refuse to inline Unlock but profiling shows that it is wrong
-#if defined(__VISUALC__) && (__VISUALC__ >= 1200)
- __forceinline
-#endif
- // VC++ free must take place in same DLL as allocation when using non dll
- // run-time library (e.g. Multithreaded instead of Multithreaded DLL)
-#if defined(__VISUALC__) && defined(_MT) && !defined(_DLL)
- void Unlock() { if ( !IsEmpty() && --nRefs == 0) Free(); }
- // we must not inline deallocation since allocation is not inlined
- void Free();
-#else
- void Unlock() { if ( !IsEmpty() && --nRefs == 0) free(this); }
+protected:
+ wxStringPrintfMixin() : wxStringPrintfMixinBase() {}
+};
+#endif // wxNEEDS_WXSTRING_PRINTF_MIXIN
+
+
+// ----------------------------------------------------------------------------
+// wxString: string class trying to be compatible with std::string, MFC
+// CString and wxWindows 1.x wxString all at once
+// ---------------------------------------------------------------------------
+
+#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
+ // "non dll-interface class 'wxStringPrintfMixin' used as base interface
+ // for dll-interface class 'wxString'" -- this is OK in our case
+ #pragma warning (push)
+ #pragma warning (disable:4275)
#endif
- // if we had taken control over string memory (GetWriteBuf), it's
- // intentionally put in invalid state
- void Validate(bool b) { nRefs = (b ? 1 : 0); }
- bool IsValid() const { return (nRefs != 0); }
+#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
+ wxDECLARE_NO_COPY_CLASS(wxStringIteratorNode);
};
+#endif // wxUSE_UNICODE_UTF8
-class WXDLLIMPEXP_BASE wxStringBase
+class WXDLLIMPEXP_BASE wxString
+#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
+ : public wxStringPrintfMixin
+#endif
{
-public :
+ // NB: special care was taken in arranging the member functions in such order
+ // that all inline functions can be effectively inlined, verify that all
+ // performance critical functions are still inlined if you change order!
+public:
// an 'invalid' value for string index, moved to this place due to a CW bug
static const size_t npos;
-protected:
- // 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 wxUniChar value_type;
- typedef wxUniChar char_type;
- typedef wxUniCharRef reference;
- typedef wxChar* pointer;
- typedef const wxChar* const_pointer;
- typedef size_t size_type;
- typedef wxUniChar const_reference;
+private:
+ // if we hadn't made these operators private, it would be possible to
+ // compile "wxString s; s = 17;" without any warnings as 17 is implicitly
+ // converted to char in C and we do have operator=(char)
+ //
+ // NB: we don't need other versions (short/long and unsigned) as attempt
+ // to assign another numeric type to wxString will now result in
+ // ambiguity between operator=(char) and operator=(int)
+ wxString& operator=(int);
- #define WX_STR_ITERATOR_IMPL(iterator_name, pointer_type, \
- reference_type, reference_ctor) \
- public: \
- typedef wxUniChar value_type; \
- typedef reference_type reference; \
- typedef pointer_type pointer; \
- \
- iterator_name(const iterator_name& i) : m_cur(i.m_cur) {} \
- \
- reference operator*() const { return reference_ctor; } \
- \
- iterator_name& operator++() \
- { ++m_cur; return *this; } \
- iterator_name operator++(int) \
- { iterator_name tmp = *this; ++m_cur; return tmp; } \
- iterator_name& operator--() \
- { --m_cur; return *this; } \
- iterator_name operator--(int) \
- { iterator_name tmp = *this; --m_cur; return tmp; } \
- \
- iterator_name operator+(int n) const \
- { return iterator_name(m_cur + n); } \
- iterator_name operator+(size_t n) const \
- { return iterator_name(m_cur + n); } \
- iterator_name operator-(int n) const \
- { return iterator_name(m_cur - n); } \
- iterator_name operator-(size_t n) const \
- { return iterator_name(m_cur - n); } \
- iterator_name operator+=(int n) \
- { m_cur += n; return *this; } \
- iterator_name operator+=(size_t n) \
- { m_cur += n; return *this; } \
- iterator_name operator-=(int n) \
- { m_cur -= n; return *this; } \
- iterator_name operator-=(size_t n) \
- { m_cur -= n; return *this; } \
- \
- unsigned operator-(const iterator_name& i) const \
- { return m_cur - i.m_cur; } \
- \
- bool operator==(const iterator_name&i) const \
- { return m_cur == i.m_cur; } \
- bool operator!=(const iterator_name& i) const \
- { return m_cur != i.m_cur; } \
- \
- bool operator<(const iterator_name& i) const \
- { return m_cur < i.m_cur; } \
- bool operator>(const iterator_name& i) const \
- { return m_cur > i.m_cur; } \
- bool operator<=(const iterator_name& i) const \
- { return m_cur <= i.m_cur; } \
- bool operator>=(const iterator_name& i) const \
- { return m_cur >= i.m_cur; } \
- \
- protected: \
- /* for internal wxString use only: */ \
- iterator_name(pointer ptr) : m_cur(ptr) {} \
- operator pointer() const { return m_cur; } \
- \
- friend class WXDLLIMPEXP_BASE wxString; \
- friend class WXDLLIMPEXP_BASE wxStringBase; \
- friend class WXDLLIMPEXP_BASE wxCStrData; \
- \
- protected: \
- pointer m_cur;
+ // these methods are not implemented - there is _no_ conversion from int to
+ // string, you're doing something wrong if the compiler wants to call it!
+ //
+ // try `s << i' or `s.Printf("%d", i)' instead
+ wxString(int);
- class const_iterator;
- class iterator
+ // buffer for holding temporary substring when using any of the methods
+ // that take (char*,size_t) or (wchar_t*,size_t) arguments:
+ template<typename T>
+ struct SubstrBufFromType
{
- WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef,
- wxUniCharRef::CreateForString(m_cur))
+ T data;
+ size_t len;
- friend class const_iterator;
+ SubstrBufFromType(const T& data_, size_t len_)
+ : data(data_), len(len_)
+ {
+ wxASSERT_MSG( len != npos, "must have real length" );
+ }
};
- class 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,
- wxUniChar(*m_cur))
+#if wxUSE_UNICODE_UTF8
+ // even char* -> char* needs conversion, from locale charset to UTF-8
+ typedef SubstrBufFromType<wxScopedCharBuffer> SubstrBufFromWC;
+ typedef SubstrBufFromType<wxScopedCharBuffer> SubstrBufFromMB;
+#elif wxUSE_UNICODE_WCHAR
+ typedef SubstrBufFromType<const wchar_t*> SubstrBufFromWC;
+ typedef SubstrBufFromType<wxScopedWCharBuffer> SubstrBufFromMB;
+#else
+ typedef SubstrBufFromType<const char*> SubstrBufFromMB;
+ typedef SubstrBufFromType<wxScopedCharBuffer> SubstrBufFromWC;
+#endif
- public:
- const_iterator(const iterator& i) : m_cur(i.m_cur) {}
- };
- #undef WX_STR_ITERATOR
+ // Functions implementing primitive operations on string data; wxString
+ // methods and iterators are implemented in terms of it. The differences
+ // between UTF-8 and wchar_t* representations of the string are mostly
+ // contained here.
- template <typename T>
- class reverse_iterator_impl
+#if wxUSE_UNICODE_UTF8
+ static SubstrBufFromMB ConvertStr(const char *psz, size_t nLength,
+ const wxMBConv& conv);
+ static SubstrBufFromWC ConvertStr(const wchar_t *pwz, size_t nLength,
+ const wxMBConv& conv);
+#elif wxUSE_UNICODE_WCHAR
+ static SubstrBufFromMB ConvertStr(const char *psz, size_t nLength,
+ const wxMBConv& conv);
+#else
+ static SubstrBufFromWC ConvertStr(const wchar_t *pwz, size_t nLength,
+ const wxMBConv& conv);
+#endif
+
+#if !wxUSE_UNICODE_UTF8 // wxUSE_UNICODE_WCHAR or !wxUSE_UNICODE
+ // returns C string encoded as the implementation expects:
+ #if wxUSE_UNICODE
+ static const wchar_t* ImplStr(const wchar_t* str)
+ { return str ? str : wxT(""); }
+ static const SubstrBufFromWC ImplStr(const wchar_t* str, size_t n)
+ { return SubstrBufFromWC(str, (str && n == npos) ? wxWcslen(str) : n); }
+ static wxScopedWCharBuffer ImplStr(const char* str,
+ const wxMBConv& conv = wxConvLibc)
+ { return ConvertStr(str, npos, conv).data; }
+ static SubstrBufFromMB ImplStr(const char* str, size_t n,
+ const wxMBConv& conv = wxConvLibc)
+ { return ConvertStr(str, n, conv); }
+ #else
+ static const char* ImplStr(const char* str,
+ const wxMBConv& WXUNUSED(conv) = wxConvLibc)
+ { return str ? str : ""; }
+ static const SubstrBufFromMB ImplStr(const char* str, size_t n,
+ const wxMBConv& WXUNUSED(conv) = wxConvLibc)
+ { return SubstrBufFromMB(str, (str && n == npos) ? wxStrlen(str) : n); }
+ static wxScopedCharBuffer ImplStr(const wchar_t* str)
+ { return ConvertStr(str, npos, wxConvLibc).data; }
+ static SubstrBufFromWC ImplStr(const wchar_t* str, size_t n)
+ { return ConvertStr(str, n, wxConvLibc); }
+ #endif
+
+ // translates position index in wxString to/from index in underlying
+ // wxStringImpl:
+ static size_t PosToImpl(size_t pos) { return pos; }
+ static void PosLenToImpl(size_t pos, size_t len,
+ size_t *implPos, size_t *implLen)
+ { *implPos = pos; *implLen = len; }
+ static size_t LenToImpl(size_t len) { return len; }
+ static size_t PosFromImpl(size_t pos) { return pos; }
+
+ // we don't want to define these as empty inline functions as it could
+ // result in noticeable (and quite unnecessary in non-UTF-8 build) slowdown
+ // in debug build where the inline functions are not effectively inlined
+ #define wxSTRING_INVALIDATE_CACHE()
+ #define wxSTRING_INVALIDATE_CACHED_LENGTH()
+ #define wxSTRING_UPDATE_CACHED_LENGTH(n)
+ #define wxSTRING_SET_CACHED_LENGTH(n)
+
+#else // wxUSE_UNICODE_UTF8
+
+ static wxScopedCharBuffer ImplStr(const char* str,
+ const wxMBConv& conv = wxConvLibc)
+ { return ConvertStr(str, npos, conv).data; }
+ static SubstrBufFromMB ImplStr(const char* str, size_t n,
+ const wxMBConv& conv = wxConvLibc)
+ { return ConvertStr(str, n, conv); }
+
+ static wxScopedCharBuffer ImplStr(const wchar_t* str)
+ { return ConvertStr(str, npos, wxMBConvUTF8()).data; }
+ static SubstrBufFromWC ImplStr(const wchar_t* str, size_t n)
+ { return ConvertStr(str, n, wxMBConvUTF8()); }
+
+#if wxUSE_STRING_POS_CACHE
+ // this is an extremely simple cache used by PosToImpl(): each cache element
+ // contains the string it applies to and the index corresponding to the last
+ // used position in this wxString in its m_impl string
+ //
+ // NB: notice that this struct (and nested Element one) must be a POD or we
+ // wouldn't be able to use a thread-local variable of this type, in
+ // particular it should have no ctor -- we rely on statics being
+ // initialized to 0 instead
+ struct Cache
{
- public:
- typedef T iterator_type;
- typedef typename T::value_type value_type;
- typedef typename T::reference reference;
- typedef typename T::pointer *pointer;
+ enum { SIZE = 8 };
- reverse_iterator_impl(iterator_type i) : m_cur(i) {}
- reverse_iterator_impl(const reverse_iterator_impl& ri)
- : m_cur(ri.m_cur) {}
+ struct Element
+ {
+ const wxString *str; // the string to which this element applies
+ size_t pos, // the cached index in this string
+ impl, // the corresponding position in its m_impl
+ len; // cached length or npos if unknown
- iterator_type base() const { return m_cur; }
+ // reset cached index to 0
+ void ResetPos() { pos = impl = 0; }
- reference operator*() const { return *(m_cur-1); }
+ // reset position and length
+ void Reset() { ResetPos(); len = npos; }
+ };
- reverse_iterator_impl& operator++()
- { --m_cur; return *this; }
- reverse_iterator_impl operator++(int)
- { reverse_iterator_impl tmp = *this; --m_cur; return tmp; }
- reverse_iterator_impl& operator--()
- { ++m_cur; return *this; }
- reverse_iterator_impl operator--(int)
- { reverse_iterator_impl tmp = *this; ++m_cur; return tmp; }
+ // cache the indices mapping for the last few string used
+ Element cached[SIZE];
- bool operator==(const reverse_iterator_impl& ri) const
- { return m_cur == ri.m_cur; }
- bool operator!=(const reverse_iterator_impl& ri) const
- { return !(*this == ri); }
-
- private:
- iterator_type m_cur;
+ // the last used index
+ unsigned lastUsed;
};
- typedef reverse_iterator_impl<iterator> reverse_iterator;
- typedef reverse_iterator_impl<const_iterator> const_reverse_iterator;
+#ifndef wxHAS_COMPILER_TLS
+ // we must use an accessor function and not a static variable when the TLS
+ // variables support is implemented in the library (and not by the compiler)
+ // because the global s_cache variable could be not yet initialized when a
+ // ctor of another global object is executed and if that ctor uses any
+ // wxString methods, bad things happen
+ //
+ // however notice that this approach does not work when compiler TLS is used,
+ // at least not with g++ 4.1.2 under amd64 as it apparently compiles code
+ // using this accessor incorrectly when optimizations are enabled (-O2 is
+ // enough) -- luckily we don't need it then neither as static __thread
+ // variables are initialized by 0 anyhow then and so we can use the variable
+ // directly
+ WXEXPORT static Cache& GetCache()
+ {
+ static wxTLS_TYPE(Cache) s_cache;
+ return wxTLS_VALUE(s_cache);
+ }
- // constructors and destructor
- // ctor for an empty string
- wxStringBase() { Init(); }
- // copy ctor
- wxStringBase(const wxStringBase& stringSrc)
+ // this helper struct is used to ensure that GetCache() is called during
+ // static initialization time, i.e. before any threads creation, as otherwise
+ // the static s_cache construction inside GetCache() wouldn't be MT-safe
+ friend struct wxStrCacheInitializer;
+#else // wxHAS_COMPILER_TLS
+ static wxTLS_TYPE(Cache) ms_cache;
+ static Cache& GetCache() { return wxTLS_VALUE(ms_cache); }
+#endif // !wxHAS_COMPILER_TLS/wxHAS_COMPILER_TLS
+
+ static Cache::Element *GetCacheBegin() { return GetCache().cached; }
+ static Cache::Element *GetCacheEnd() { return GetCacheBegin() + Cache::SIZE; }
+ static unsigned& LastUsedCacheElement() { return GetCache().lastUsed; }
+
+ // this is used in debug builds only to provide a convenient function,
+ // callable from a debugger, to show the cache contents
+ friend struct wxStrCacheDumper;
+
+ // uncomment this to have access to some profiling statistics on program
+ // termination
+ //#define wxPROFILE_STRING_CACHE
+
+#ifdef wxPROFILE_STRING_CACHE
+ static struct PosToImplCacheStats
+ {
+ unsigned postot, // total non-trivial calls to PosToImpl
+ poshits, // cache hits from PosToImpl()
+ mishits, // cached position beyond the needed one
+ sumpos, // sum of all positions, used to compute the
+ // average position after dividing by postot
+ sumofs, // sum of all offsets after using the cache, used to
+ // compute the average after dividing by hits
+ lentot, // number of total calls to length()
+ lenhits; // number of cache hits in length()
+ } ms_cacheStats;
+
+ friend struct wxStrCacheStatsDumper;
+
+ #define wxCACHE_PROFILE_FIELD_INC(field) ms_cacheStats.field++
+ #define wxCACHE_PROFILE_FIELD_ADD(field, val) ms_cacheStats.field += (val)
+#else // !wxPROFILE_STRING_CACHE
+ #define wxCACHE_PROFILE_FIELD_INC(field)
+ #define wxCACHE_PROFILE_FIELD_ADD(field, val)
+#endif // wxPROFILE_STRING_CACHE/!wxPROFILE_STRING_CACHE
+
+ // note: it could seem that the functions below shouldn't be inline because
+ // they are big, contain loops and so the compiler shouldn't be able to
+ // inline them anyhow, however moving them into string.cpp does decrease the
+ // code performance by ~5%, at least when using g++ 4.1 so do keep them here
+ // unless tests show that it's not advantageous any more
+
+ // return the pointer to the cache element for this string or NULL if not
+ // cached
+ Cache::Element *FindCacheElement() const
{
- wxASSERT_MSG( stringSrc.GetStringData()->IsValid(),
- _T("did you forget to call UngetWriteBuf()?") );
+ // profiling seems to show a small but consistent gain if we use this
+ // simple loop instead of starting from the last used element (there are
+ // a lot of misses in this function...)
+ Cache::Element * const cacheBegin = GetCacheBegin();
+#ifndef wxHAS_COMPILER_TLS
+ // during destruction tls calls may return NULL, in this case return NULL
+ // immediately without accessing anything else
+ if ( cacheBegin == NULL )
+ return NULL;
+#endif
+ Cache::Element * const cacheEnd = GetCacheEnd();
+ for ( Cache::Element *c = cacheBegin; c != cacheEnd; c++ )
+ {
+ if ( c->str == this )
+ return c;
+ }
- 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
- }
+ return NULL;
}
- // string containing nRepeat copies of ch
- wxStringBase(size_type nRepeat, wxUniChar 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)
+
+ // unlike FindCacheElement(), this one always returns a valid pointer to the
+ // cache element for this string, it may have valid last cached position and
+ // its corresponding index in the byte string or not
+ Cache::Element *GetCacheElement() const
{
- 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);
+ Cache::Element * const cacheBegin = GetCacheBegin();
+ Cache::Element * const cacheEnd = GetCacheEnd();
+ Cache::Element * const cacheStart = cacheBegin + LastUsedCacheElement();
+
+ // check the last used first, this does no (measurable) harm for a miss
+ // but does help for simple loops addressing the same string all the time
+ if ( cacheStart->str == this )
+ return cacheStart;
+
+ // notice that we're going to check cacheStart again inside this call but
+ // profiling shows that it's still faster to use a simple loop like
+ // inside FindCacheElement() than manually looping with wrapping starting
+ // from the cache entry after the start one
+ Cache::Element *c = FindCacheElement();
+ if ( !c )
+ {
+ // claim the next cache entry for this string
+ c = cacheStart;
+ if ( ++c == cacheEnd )
+ c = cacheBegin;
+
+ c->str = this;
+ c->Reset();
+
+ // and remember the last used element
+ LastUsedCacheElement() = c - cacheBegin;
+ }
+
+ return c;
}
- // 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()
+ size_t DoPosToImpl(size_t pos) const
{
-#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
+ wxCACHE_PROFILE_FIELD_INC(postot);
+
+ // NB: although the case of pos == 1 (and offset from cached position
+ // equal to 1) are common, nothing is gained by writing special code
+ // for handling them, the compiler (at least g++ 4.1 used) seems to
+ // optimize the code well enough on its own
+
+ wxCACHE_PROFILE_FIELD_ADD(sumpos, pos);
+
+ Cache::Element * const cache = GetCacheElement();
+
+ // cached position can't be 0 so if it is, it means that this entry was
+ // used for length caching only so far, i.e. it doesn't count as a hit
+ // from our point of view
+ if ( cache->pos )
+ {
+ wxCACHE_PROFILE_FIELD_INC(poshits);
+ }
+
+ if ( pos == cache->pos )
+ return cache->impl;
+
+ // this seems to happen only rarely so just reset the cache in this case
+ // instead of complicating code even further by seeking backwards in this
+ // case
+ if ( cache->pos > pos )
+ {
+ wxCACHE_PROFILE_FIELD_INC(mishits);
+
+ cache->ResetPos();
+ }
+
+ wxCACHE_PROFILE_FIELD_ADD(sumofs, pos - cache->pos);
- GetStringData()->Unlock();
+
+ wxStringImpl::const_iterator i(m_impl.begin() + cache->impl);
+ for ( size_t n = cache->pos; n < pos; n++ )
+ wxStringOperations::IncIter(i);
+
+ cache->pos = pos;
+ cache->impl = i - m_impl.begin();
+
+ wxSTRING_CACHE_ASSERT(
+ (int)cache->impl == (begin() + pos).impl() - m_impl.begin() );
+
+ return cache->impl;
}
-#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=(wxUniChar ch);
- // from a C string
- wxStringBase& operator=(const wxChar *psz);
+ void InvalidateCache()
+ {
+ Cache::Element * const cache = FindCacheElement();
+ if ( cache )
+ cache->Reset();
+ }
- // 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 npos; }
- // resize the string, filling the space with c if c != 0
- void resize(size_t nSize, wxUniChar 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 wxUniCharRef::CreateForString(&m_pchData[n]);
+ void InvalidateCachedLength()
+ {
+ Cache::Element * const cache = FindCacheElement();
+ if ( cache )
+ cache->len = npos;
}
- // lib.string.modifiers
- // append elements str[pos], ..., str[pos+n]
- wxStringBase& append(const wxStringBase& str, size_t pos, size_t n)
+ void SetCachedLength(size_t len)
{
- wxASSERT(pos <= str.length());
- ConcatSelf(n, str.c_str() + pos, str.length() - pos);
- return *this;
+ // we optimistically cache the length here even if the string wasn't
+ // present in the cache before, this seems to do no harm and the
+ // potential for avoiding length recomputation for long strings looks
+ // interesting
+ GetCacheElement()->len = len;
}
- // 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, wxUniChar 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, wxUniChar 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()); }
+ void UpdateCachedLength(ptrdiff_t delta)
+ {
+ Cache::Element * const cache = FindCacheElement();
+ if ( cache && cache->len != npos )
+ {
+ wxSTRING_CACHE_ASSERT( (ptrdiff_t)cache->len + delta >= 0 );
- // insert another string
- wxStringBase& insert(size_t nPos, const wxStringBase& str)
+ cache->len += delta;
+ }
+ }
+
+ #define wxSTRING_INVALIDATE_CACHE() InvalidateCache()
+ #define wxSTRING_INVALIDATE_CACHED_LENGTH() InvalidateCachedLength()
+ #define wxSTRING_UPDATE_CACHED_LENGTH(n) UpdateCachedLength(n)
+ #define wxSTRING_SET_CACHED_LENGTH(n) SetCachedLength(n)
+#else // !wxUSE_STRING_POS_CACHE
+ size_t DoPosToImpl(size_t pos) const
{
- wxASSERT( str.GetStringData()->IsValid() );
- return insert(nPos, str.c_str(), str.length());
+ return (begin() + pos).impl() - m_impl.begin();
}
- // insert n chars of str starting at nStart (in str)
- wxStringBase& insert(size_t nPos, const wxStringBase& str, size_t nStart, size_t n)
+
+ #define wxSTRING_INVALIDATE_CACHE()
+ #define wxSTRING_INVALIDATE_CACHED_LENGTH()
+ #define wxSTRING_UPDATE_CACHED_LENGTH(n)
+ #define wxSTRING_SET_CACHED_LENGTH(n)
+#endif // wxUSE_STRING_POS_CACHE/!wxUSE_STRING_POS_CACHE
+
+ size_t PosToImpl(size_t pos) const
{
- 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);
+ return pos == 0 || pos == npos ? pos : DoPosToImpl(pos);
}
- // 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, wxUniChar ch)
- { return insert(nPos, wxStringBase(n, ch)); }
- iterator insert(iterator it, wxUniChar 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, wxUniChar 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)
+ void PosLenToImpl(size_t pos, size_t len, size_t *implPos, size_t *implLen) const;
+
+ size_t LenToImpl(size_t len) const
{
- size_t idx = first - begin();
- erase(idx, last - first);
- return begin() + idx;
+ size_t pos, len2;
+ PosLenToImpl(0, len, &pos, &len2);
+ return len2;
}
- 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; }
+ size_t PosFromImpl(size_t pos) const
+ {
+ if ( pos == 0 || pos == npos )
+ return pos;
+ else
+ return const_iterator(this, m_impl.begin() + pos) - begin();
+ }
+#endif // !wxUSE_UNICODE_UTF8/wxUSE_UNICODE_UTF8
- // 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, wxUniChar 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, wxUniChar 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.
+public:
+ // standard types
+ typedef wxUniChar value_type;
+ typedef wxUniChar char_type;
+ typedef wxUniCharRef reference;
+ typedef wxChar* pointer;
+ typedef const wxChar* const_pointer;
- // find a substring
- size_t find(const wxStringBase& str, size_t nStart = 0) const;
+ typedef size_t size_type;
+ typedef wxUniChar const_reference;
- // find first n characters of sz
- size_t find(const wxChar* sz, size_t nStart = 0, size_t n = npos) const;
+#if wxUSE_STD_STRING
+ #if wxUSE_UNICODE_UTF8
+ // random access is not O(1), as required by Random Access Iterator
+ #define WX_STR_ITERATOR_TAG std::bidirectional_iterator_tag
+ #else
+ #define WX_STR_ITERATOR_TAG std::random_access_iterator_tag
+ #endif
+ #define WX_DEFINE_ITERATOR_CATEGORY(cat) typedef cat iterator_category;
+#else
+ // not defining iterator_category at all in this case is better than defining
+ // it as some dummy type -- at least it results in more intelligible error
+ // messages
+ #define WX_DEFINE_ITERATOR_CATEGORY(cat)
+#endif
- // find the first occurence of character ch after nStart
- size_t find(wxUniChar ch, size_t nStart = 0) const;
+ #define WX_STR_ITERATOR_IMPL(iterator_name, pointer_type, reference_type) \
+ private: \
+ typedef wxStringImpl::iterator_name underlying_iterator; \
+ public: \
+ WX_DEFINE_ITERATOR_CATEGORY(WX_STR_ITERATOR_TAG) \
+ typedef wxUniChar value_type; \
+ typedef int difference_type; \
+ typedef reference_type reference; \
+ typedef pointer_type pointer; \
+ \
+ reference operator[](size_t n) const { return *(*this + n); } \
+ \
+ iterator_name& operator++() \
+ { wxStringOperations::IncIter(m_cur); return *this; } \
+ iterator_name& operator--() \
+ { wxStringOperations::DecIter(m_cur); return *this; } \
+ iterator_name operator++(int) \
+ { \
+ iterator_name tmp = *this; \
+ wxStringOperations::IncIter(m_cur); \
+ return tmp; \
+ } \
+ iterator_name operator--(int) \
+ { \
+ iterator_name tmp = *this; \
+ wxStringOperations::DecIter(m_cur); \
+ return tmp; \
+ } \
+ \
+ iterator_name& operator+=(ptrdiff_t n) \
+ { \
+ m_cur = wxStringOperations::AddToIter(m_cur, n); \
+ return *this; \
+ } \
+ iterator_name& operator-=(ptrdiff_t n) \
+ { \
+ m_cur = wxStringOperations::AddToIter(m_cur, -n); \
+ return *this; \
+ } \
+ \
+ difference_type operator-(const iterator_name& i) const \
+ { return wxStringOperations::DiffIters(m_cur, i.m_cur); } \
+ \
+ bool operator==(const iterator_name& i) const \
+ { return m_cur == i.m_cur; } \
+ bool operator!=(const iterator_name& i) const \
+ { return m_cur != i.m_cur; } \
+ \
+ bool operator<(const iterator_name& i) const \
+ { return m_cur < i.m_cur; } \
+ bool operator>(const iterator_name& i) const \
+ { return m_cur > i.m_cur; } \
+ bool operator<=(const iterator_name& i) const \
+ { return m_cur <= i.m_cur; } \
+ bool operator>=(const iterator_name& i) const \
+ { return m_cur >= i.m_cur; } \
+ \
+ private: \
+ /* for internal wxString use only: */ \
+ underlying_iterator impl() const { return m_cur; } \
+ \
+ friend class wxString; \
+ friend class wxCStrData; \
+ \
+ private: \
+ underlying_iterator m_cur
- // rfind() family is exactly like find() but works right to left
+ class WXDLLIMPEXP_FWD_BASE const_iterator;
- // as find, but from the end
- size_t rfind(const wxStringBase& str, size_t nStart = npos) const;
+#if wxUSE_UNICODE_UTF8
+ // 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)
- // 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(wxUniChar ch, size_t nStart = npos) const;
+ class WXDLLIMPEXP_BASE iterator
+ {
+ WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef);
- // find first/last occurence of any character in the set
+ public:
+ 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;
+ }
- // as strpbrk() but starts at nStart, returns npos if not found
- size_t find_first_of(const wxStringBase& str, size_t nStart = 0) const
- { return find_first_of(str.c_str(), nStart); }
- // same as above
- size_t find_first_of(const wxChar* sz, size_t nStart = 0) const;
- size_t find_first_of(const wxChar* sz, size_t nStart, size_t n) const;
- // same as find(char, size_t)
- size_t find_first_of(wxUniChar c, size_t nStart = 0) const
- { return find(c, nStart); }
- // find the last (starting from nStart) char from str in this string
- size_t find_last_of (const wxStringBase& str, size_t nStart = npos) const
- { return find_last_of(str.c_str(), nStart); }
- // same as above
- size_t find_last_of (const wxChar* sz, size_t nStart = npos) const;
- size_t find_last_of(const wxChar* sz, size_t nStart, size_t n) const;
- // same as above
- size_t find_last_of(wxUniChar c, size_t nStart = npos) const
- { return rfind(c, nStart); }
+ reference operator*()
+ { return wxUniCharRef::CreateForString(*str(), m_cur); }
- // find first/last occurence of any character not in the set
+ 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)); }
- // as strspn() (starting from nStart), returns npos on failure
- size_t find_first_not_of(const wxStringBase& str, size_t nStart = 0) const
- { return find_first_not_of(str.c_str(), nStart); }
- // same as above
- size_t find_first_not_of(const wxChar* sz, size_t nStart = 0) const;
- size_t find_first_not_of(const wxChar* sz, size_t nStart, size_t n) const;
- // same as above
- size_t find_first_not_of(wxUniChar ch, size_t nStart = 0) const;
- // as strcspn()
- size_t find_last_not_of(const wxStringBase& str, size_t nStart = npos) const
- { return find_last_not_of(str.c_str(), nStart); }
- // same as above
- size_t find_last_not_of(const wxChar* sz, size_t nStart = npos) const;
- size_t find_last_not_of(const wxChar* sz, size_t nStart, size_t n) const;
- // same as above
- size_t find_last_not_of(wxUniChar ch, size_t nStart = npos) const;
+ // Normal iterators need to be comparable with the const_iterators so
+ // declare the comparison operators and implement them below after the
+ // full const_iterator declaration.
+ bool operator==(const const_iterator& i) const;
+ bool operator!=(const const_iterator& i) const;
+ bool operator<(const const_iterator& i) const;
+ bool operator>(const const_iterator& i) const;
+ bool operator<=(const const_iterator& i) const;
+ bool operator>=(const const_iterator& i) const;
- // All compare functions return -1, 0 or 1 if the [sub]string is less,
- // equal or greater than the compare() argument.
+ private:
+ iterator(wxString *wxstr, underlying_iterator ptr)
+ : m_cur(ptr), m_node(wxstr, &m_cur) {}
- // comparison with another string
- int compare(const wxStringBase& str) const;
- // comparison with a substring
- int compare(size_t nStart, size_t nLen, const wxStringBase& str) const;
- // comparison of 2 substrings
- int compare(size_t nStart, size_t nLen,
- const wxStringBase& str, size_t nStart2, size_t nLen2) const;
- // comparison with a c string
- int compare(const wxChar* sz) const;
- // substring comparison with first nCount characters of sz
- int compare(size_t nStart, size_t nLen,
- const wxChar* sz, size_t nCount = npos) const;
+ wxString* str() const { return const_cast<wxString*>(m_node.m_str); }
- size_type copy(wxChar* s, size_type n, size_type pos = 0);
+ wxStringIteratorNode m_node;
- // substring extraction
- wxStringBase substr(size_t nStart = 0, size_t nLen = npos) const;
+ friend class const_iterator;
+ };
- // string += string
- wxStringBase& operator+=(const wxStringBase& s) { return append(s); }
- // string += C string
- wxStringBase& operator+=(const wxChar *psz) { return append(psz); }
- // string += char
- wxStringBase& operator+=(wxUniChar ch) { return append(1, ch); }
- wxStringBase& operator+=(wxUniCharRef ch) { return append(1, ch); }
- wxStringBase& operator+=(char ch) { return append(1, ch); }
- wxStringBase& operator+=(wchar_t ch) { return append(1, ch); }
-};
+ 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);
-// don't pollute the library user's name space
-#undef wxASSERT_VALID_INDEX
+ 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) {}
-#endif // !wxUSE_STL_BASED_WXSTRING
+ 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; }
-// ----------------------------------------------------------------------------
-// wxCStrData
-// ----------------------------------------------------------------------------
+ reference operator*() const
+ { return wxStringOperations::DecodeChar(m_cur); }
-// Lightweight object returned by wxString::c_str() and implicitly convertible
-// to either const char* or const wchar_t*.
-class WXDLLIMPEXP_BASE wxCStrData
-{
-private:
- // Ctors; for internal use by wxString and wxCStrData only
- wxCStrData(const wxString *str, size_t offset = 0, bool owned = false)
- : m_str(str), m_offset(offset), m_owned(owned) {}
+ 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)); }
-public:
- // Ctor constructs the object from char literal; they are needed to make
- // operator?: compile and they intentionally take char*, not const char*
- wxCStrData(char *buf);
- wxCStrData(wchar_t *buf);
+ // Notice that comparison operators taking non-const iterator are not
+ // needed here because of the implicit conversion from non-const iterator
+ // to const ones ensure that the versions for const_iterator declared
+ // inside WX_STR_ITERATOR_IMPL can be used.
- ~wxCStrData();
+ private:
+ // for internal wxString use only:
+ const_iterator(const wxString *wxstr, underlying_iterator ptr)
+ : m_cur(ptr), m_node(wxstr, &m_cur) {}
- // FIXME: we'll need convertors for both char* and wchar_t* and NONE
- // for wxChar*, but that's after completing the transition to
- // "smart" wxUniChar class. For now, just have conversion to
- // char* in ANSI build and wchar_t in Unicode build.
-#if wxUSE_UNICODE
- const wchar_t* AsWChar() const;
- operator const wchar_t*() const { return AsWChar(); }
-#else
- const char* AsChar() const;
- const unsigned char* AsUnsignedChar() const
- { return (const unsigned char *) AsChar(); }
- operator const void*() const { return AsChar(); }
- operator const char*() const { return AsChar(); }
- operator const unsigned char*() const { return AsUnsignedChar(); }
-#endif
+ const wxString* str() const { return m_node.m_str; }
- wxString AsString() const;
- operator wxString() const;
+ wxStringIteratorNode m_node;
+ };
- // allow expressions like "c_str()[0]":
- wxUniChar operator[](int n) const { return operator[](size_t(n)); }
- wxUniChar operator[](size_t n) const;
- wxUniChar operator[](long n) const { return operator[](size_t(n)); }
-#ifndef wxSIZE_T_IS_UINT
- wxUniChar operator[](unsigned int n) const { return operator[](size_t(n)); }
-#endif // size_t != unsigned int
+ size_t IterToImplPos(wxString::iterator i) const
+ { return wxStringImpl::const_iterator(i.impl()) - m_impl.begin(); }
- // these operators are needed to emulate the pointer semantics of c_str():
- // expressions like "wxChar *p = str.c_str() + 1;" should continue to work
- // (we need both versions to resolve ambiguities):
- wxCStrData operator+(int n) const
- { return wxCStrData(m_str, m_offset + n, m_owned); }
- wxCStrData operator+(long n) const
- { return wxCStrData(m_str, m_offset + n, m_owned); }
- wxCStrData operator+(size_t n) const
- { return wxCStrData(m_str, m_offset + n, m_owned); }
+ iterator GetIterForNthChar(size_t n)
+ { return iterator(this, m_impl.begin() + PosToImpl(n)); }
+ const_iterator GetIterForNthChar(size_t n) const
+ { return const_iterator(this, m_impl.begin() + PosToImpl(n)); }
+#else // !wxUSE_UNICODE_UTF8
- // this operator is needed to make expressions like "*c_str()" or
- // "*(c_str() + 2)" work
- wxUniChar operator*() const;
+ class WXDLLIMPEXP_BASE iterator
+ {
+ WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef);
-private:
- const wxString *m_str;
- size_t m_offset;
- bool m_owned;
+ public:
+ iterator() {}
+ iterator(const iterator& i) : m_cur(i.m_cur) {}
+
+ reference operator*()
+ { return wxUniCharRef::CreateForString(m_cur); }
+
+ iterator operator+(ptrdiff_t n) const
+ { return iterator(wxStringOperations::AddToIter(m_cur, n)); }
+ iterator operator-(ptrdiff_t n) const
+ { return iterator(wxStringOperations::AddToIter(m_cur, -n)); }
+
+ // As in UTF-8 case above, define comparison operators taking
+ // const_iterator too.
+ bool operator==(const const_iterator& i) const;
+ bool operator!=(const const_iterator& i) const;
+ bool operator<(const const_iterator& i) const;
+ bool operator>(const const_iterator& i) const;
+ bool operator<=(const const_iterator& i) const;
+ bool operator>=(const const_iterator& i) const;
- friend class WXDLLIMPEXP_BASE wxString;
-};
+ private:
+ // for internal wxString use only:
+ iterator(underlying_iterator ptr) : m_cur(ptr) {}
+ iterator(wxString *WXUNUSED(str), underlying_iterator ptr) : m_cur(ptr) {}
-// ----------------------------------------------------------------------------
-// wxStringPrintfMixin
-// ---------------------------------------------------------------------------
+ friend class const_iterator;
+ };
-// NB: VC6 has a bug that causes linker errors if you have template methods
-// in a class using __declspec(dllimport). The solution is to split such
-// class into two classes, one that contains the template methods and does
-// *not* use WXDLLIMPEXP_BASE and another class that contains the rest
-// (with DLL linkage).
-//
-// We only do this for VC6 here, because the code is less efficient
-// (Printf() has to use dynamic_cast<>) and because OpenWatcom compiler
-// cannot compile this code.
+ 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);
-#if defined(__VISUALC__) && __VISUALC__ < 1300
- #define wxNEEDS_WXSTRING_PRINTF_MIXIN
-#endif
+ public:
+ const_iterator() {}
+ const_iterator(const const_iterator& i) : m_cur(i.m_cur) {}
+ const_iterator(const iterator& i) : m_cur(i.m_cur) {}
-#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
-// this class contains implementation of wxString's vararg methods, it's
-// exported from wxBase DLL
-class WXDLLIMPEXP_BASE wxStringPrintfMixinBase
-{
-protected:
- wxStringPrintfMixinBase() {}
+ reference operator*() const
+ { return wxStringOperations::DecodeChar(m_cur); }
- int DoPrintf(const wxChar *format, ...) ATTRIBUTE_PRINTF_2;
- static wxString DoFormat(const wxChar *format, ...) ATTRIBUTE_PRINTF_1;
-};
+ const_iterator operator+(ptrdiff_t n) const
+ { return const_iterator(wxStringOperations::AddToIter(m_cur, n)); }
+ const_iterator operator-(ptrdiff_t n) const
+ { return const_iterator(wxStringOperations::AddToIter(m_cur, -n)); }
-// this class contains template wrappers for wxString's vararg methods, it's
-// intentionally *not* exported from the DLL in order to fix the VC6 bug
-// described above
-class wxStringPrintfMixin : public wxStringPrintfMixinBase
-{
-private:
- // to further complicate things, we can't return wxString from
- // wxStringPrintfMixin::Format() because wxString is not yet declared at
- // this point; the solution is to use this fake type trait template - this
- // way the compiler won't know the return type until Format() is used
- // (this doesn't compile with Watcom, but VC6 compiles it just fine):
- template<typename T> struct StringReturnType
- {
- typedef wxString type;
- };
+ // As in UTF-8 case above, we don't need comparison operators taking
+ // iterator because we have an implicit conversion from iterator to
+ // const_iterator so the operators declared by WX_STR_ITERATOR_IMPL will
+ // be used.
-public:
- // these are duplicated wxString methods, they're also declared below
- // if !wxNEEDS_WXSTRING_PRINTF_MIXIN:
+ 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) {}
+ };
- // int Printf(const wxChar *pszFormat, ...);
- WX_DEFINE_VARARG_FUNC(int, Printf, DoPrintf)
- // static wxString Format(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_1;
- WX_DEFINE_VARARG_FUNC(static typename StringReturnType<T1>::type,
- Format, DoFormat)
- // int sprintf(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_2;
- WX_DEFINE_VARARG_FUNC(int, sprintf, DoPrintf)
+ iterator GetIterForNthChar(size_t n) { return begin() + n; }
+ const_iterator GetIterForNthChar(size_t n) const { return begin() + n; }
+#endif // wxUSE_UNICODE_UTF8/!wxUSE_UNICODE_UTF8
-protected:
- wxStringPrintfMixin() : wxStringPrintfMixinBase() {}
-};
-#endif // wxNEEDS_WXSTRING_PRINTF_MIXIN
+ #undef WX_STR_ITERATOR_TAG
+ #undef WX_STR_ITERATOR_IMPL
+ // This method is mostly used by wxWidgets itself and return the offset of
+ // the given iterator in bytes relative to the start of the buffer
+ // representing the current string contents in the current locale encoding.
+ //
+ // It is inefficient as it involves converting part of the string to this
+ // encoding (and also unsafe as it simply returns 0 if the conversion fails)
+ // and so should be avoided if possible, wx itself only uses it to implement
+ // backwards-compatible API.
+ ptrdiff_t IterOffsetInMBStr(const const_iterator& i) const
+ {
+ const wxString str(begin(), i);
-// ----------------------------------------------------------------------------
-// wxString: string class trying to be compatible with std::string, MFC
-// CString and wxWindows 1.x wxString all at once
-// ---------------------------------------------------------------------------
+ // This is logically equivalent to strlen(str.mb_str()) but avoids
+ // actually converting the string to multibyte and just computes the
+ // length that it would have after conversion.
+ size_t ofs = wxConvLibc.FromWChar(NULL, 0, str.wc_str(), str.length());
+ return ofs == wxCONV_FAILED ? 0 : static_cast<ptrdiff_t>(ofs);
+ }
-#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
- // "non dll-interface class 'wxStringPrintfMixin' used as base interface
- // for dll-interface class 'wxString'" -- this is OK in our case
- #pragma warning (disable:4275)
-#endif
+ friend class iterator;
+ friend class const_iterator;
+
+ template <typename T>
+ class reverse_iterator_impl
+ {
+ public:
+ typedef T iterator_type;
+
+ WX_DEFINE_ITERATOR_CATEGORY(typename T::iterator_category)
+ typedef typename T::value_type value_type;
+ typedef typename T::difference_type difference_type;
+ 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) {}
+
+ iterator_type base() const { return m_cur; }
+
+ reference operator*() const { return *(m_cur-1); }
+ reference operator[](size_t n) const { return *(*this + n); }
+
+ reverse_iterator_impl& operator++()
+ { --m_cur; return *this; }
+ reverse_iterator_impl operator++(int)
+ { reverse_iterator_impl tmp = *this; --m_cur; return tmp; }
+ reverse_iterator_impl& operator--()
+ { ++m_cur; return *this; }
+ reverse_iterator_impl operator--(int)
+ { reverse_iterator_impl tmp = *this; ++m_cur; return tmp; }
+
+ // NB: explicit <T> in the functions below is to keep BCC 5.5 happy
+ reverse_iterator_impl operator+(ptrdiff_t n) const
+ { return reverse_iterator_impl<T>(m_cur - n); }
+ reverse_iterator_impl operator-(ptrdiff_t n) const
+ { return reverse_iterator_impl<T>(m_cur + n); }
+ reverse_iterator_impl operator+=(ptrdiff_t n)
+ { m_cur -= n; return *this; }
+ reverse_iterator_impl operator-=(ptrdiff_t n)
+ { m_cur += n; return *this; }
+
+ unsigned operator-(const reverse_iterator_impl& i) const
+ { return i.m_cur - m_cur; }
+
+ bool operator==(const reverse_iterator_impl& ri) const
+ { return m_cur == ri.m_cur; }
+ bool operator!=(const reverse_iterator_impl& ri) const
+ { return !(*this == ri); }
+
+ bool operator<(const reverse_iterator_impl& i) const
+ { return m_cur > i.m_cur; }
+ bool operator>(const reverse_iterator_impl& i) const
+ { return m_cur < i.m_cur; }
+ bool operator<=(const reverse_iterator_impl& i) const
+ { return m_cur >= i.m_cur; }
+ bool operator>=(const reverse_iterator_impl& i) const
+ { return m_cur <= i.m_cur; }
+
+ private:
+ iterator_type m_cur;
+ };
+
+ typedef reverse_iterator_impl<iterator> reverse_iterator;
+ typedef reverse_iterator_impl<const_iterator> const_reverse_iterator;
-class WXDLLIMPEXP_BASE wxString : public wxStringBase
-#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
- ,public wxStringPrintfMixin
-#endif
-{
- // NB: special care was taken in arranging the member functions in such order
- // that all inline functions can be effectively inlined, verify that all
- // performance critical functions are still inlined if you change order!
private:
- // if we hadn't made these operators private, it would be possible to
- // compile "wxString s; s = 17;" without any warnings as 17 is implicitly
- // converted to char in C and we do have operator=(char)
- //
- // NB: we don't need other versions (short/long and unsigned) as attempt
- // to assign another numeric type to wxString will now result in
- // ambiguity between operator=(char) and operator=(int)
- wxString& operator=(int);
+ // used to transform an expression built using c_str() (and hence of type
+ // wxCStrData) to an iterator into the string
+ static const_iterator CreateConstIterator(const wxCStrData& data)
+ {
+ return const_iterator(data.m_str,
+ (data.m_str->begin() + data.m_offset).impl());
+ }
- // these methods are not implemented - there is _no_ conversion from int to
- // string, you're doing something wrong if the compiler wants to call it!
- //
- // try `s << i' or `s.Printf("%d", i)' instead
- wxString(int);
+ // in UTF-8 STL build, creation from std::string requires conversion under
+ // non-UTF8 locales, so we can't have and use wxString(wxStringImpl) ctor;
+ // instead we define dummy type that lets us have wxString ctor for creation
+ // from wxStringImpl that couldn't be used by user code (in all other builds,
+ // "standard" ctors can be used):
+#if wxUSE_UNICODE_UTF8 && wxUSE_STL_BASED_WXSTRING
+ struct CtorFromStringImplTag {};
+
+ wxString(CtorFromStringImplTag* WXUNUSED(dummy), const wxStringImpl& src)
+ : m_impl(src) {}
+
+ static wxString FromImpl(const wxStringImpl& src)
+ { return wxString((CtorFromStringImplTag*)NULL, src); }
+#else
+ #if !wxUSE_STL_BASED_WXSTRING
+ wxString(const wxStringImpl& src) : m_impl(src) { }
+ // else: already defined as wxString(wxStdString) below
+ #endif
+ static wxString FromImpl(const wxStringImpl& src) { return wxString(src); }
+#endif
public:
// constructors and destructor
// ctor for an empty string
- wxString() : wxStringBase() { }
+ wxString() {}
+
// copy ctor
- wxString(const wxStringBase& stringSrc) : wxStringBase(stringSrc) { }
- wxString(const wxString& stringSrc) : wxStringBase(stringSrc) { }
+ wxString(const wxString& stringSrc) : m_impl(stringSrc.m_impl) { }
+
// string containing nRepeat copies of ch
- wxString(wxUniChar ch, size_t nRepeat = 1)
- : wxStringBase(nRepeat, ch) { }
+ wxString(wxUniChar ch, size_t nRepeat = 1 )
+ { assign(nRepeat, ch); }
wxString(size_t nRepeat, wxUniChar ch)
- : wxStringBase(nRepeat, ch) { }
+ { assign(nRepeat, ch); }
wxString(wxUniCharRef ch, size_t nRepeat = 1)
- : wxStringBase(nRepeat, ch) { }
+ { assign(nRepeat, ch); }
wxString(size_t nRepeat, wxUniCharRef ch)
- : wxStringBase(nRepeat, ch) { }
+ { assign(nRepeat, ch); }
wxString(char ch, size_t nRepeat = 1)
- : wxStringBase(nRepeat, ch) { }
+ { assign(nRepeat, ch); }
wxString(size_t nRepeat, char ch)
- : wxStringBase(nRepeat, ch) { }
+ { assign(nRepeat, ch); }
wxString(wchar_t ch, size_t nRepeat = 1)
- : wxStringBase(nRepeat, ch) { }
+ { assign(nRepeat, ch); }
wxString(size_t nRepeat, wchar_t ch)
- : wxStringBase(nRepeat, ch) { }
- // ctor takes first nLength characters from C string
- // (default value of npos means take all the string)
- wxString(const wxChar *psz)
- : wxStringBase(psz ? psz : wxT("")) { }
- wxString(const wxChar *psz, size_t nLength)
- : wxStringBase(psz, nLength) { }
- wxString(const wxChar *psz,
- const wxMBConv& WXUNUSED(conv),
- size_t nLength = npos)
- : wxStringBase(psz, nLength == npos ? wxStrlen(psz) : nLength) { }
-
- // even if we're not built with wxUSE_STL == 1 it is very convenient to allow
- // implicit conversions from std::string to wxString as this allows to use
- // the same strings in non-GUI and GUI code, however we don't want to
- // unconditionally add this ctor as it would make wx lib dependent on
- // libstdc++ on some Linux versions which is bad, so instead we ask the
- // client code to define this wxUSE_STD_STRING symbol if they need it
-#if wxUSE_STD_STRING
- wxString(const wxStdString& s)
- : wxStringBase(s.c_str()) { }
-#endif // wxUSE_STD_STRING
+ { assign(nRepeat, ch); }
+
+ // ctors from char* strings:
+ wxString(const char *psz)
+ : m_impl(ImplStr(psz)) {}
+ wxString(const char *psz, const wxMBConv& conv)
+ : m_impl(ImplStr(psz, conv)) {}
+ wxString(const char *psz, size_t nLength)
+ { assign(psz, nLength); }
+ wxString(const char *psz, const wxMBConv& conv, size_t nLength)
+ {
+ SubstrBufFromMB str(ImplStr(psz, nLength, conv));
+ m_impl.assign(str.data, str.len);
+ }
-#if wxUSE_UNICODE
- // from multibyte string
- wxString(const char *psz,
- const wxMBConv& conv = wxConvLibc,
- size_t nLength = npos);
- // from wxWCharBuffer (i.e. return from wxGetString)
- wxString(const wxWCharBuffer& psz) : wxStringBase(psz.data()) { }
-#else // ANSI
- // from C string (for compilers using unsigned char)
- wxString(const unsigned char* psz)
- : wxStringBase((const char*)psz) { }
- // from part of C string (for compilers using unsigned char)
- wxString(const unsigned char* psz, size_t nLength)
- : wxStringBase((const char*)psz, nLength) { }
+ // and unsigned char*:
+ wxString(const unsigned char *psz)
+ : m_impl(ImplStr((const char*)psz)) {}
+ wxString(const unsigned char *psz, const wxMBConv& conv)
+ : m_impl(ImplStr((const char*)psz, conv)) {}
+ wxString(const unsigned char *psz, size_t nLength)
+ { assign((const char*)psz, nLength); }
+ wxString(const unsigned char *psz, const wxMBConv& conv, size_t nLength)
+ {
+ SubstrBufFromMB str(ImplStr((const char*)psz, nLength, conv));
+ m_impl.assign(str.data, str.len);
+ }
+
+ // ctors from wchar_t* strings:
+ wxString(const wchar_t *pwz)
+ : m_impl(ImplStr(pwz)) {}
+ wxString(const wchar_t *pwz, const wxMBConv& WXUNUSED(conv))
+ : m_impl(ImplStr(pwz)) {}
+ wxString(const wchar_t *pwz, size_t nLength)
+ { assign(pwz, nLength); }
+ wxString(const wchar_t *pwz, const wxMBConv& WXUNUSED(conv), size_t nLength)
+ { assign(pwz, nLength); }
+
+ wxString(const wxScopedCharBuffer& buf)
+ { assign(buf.data(), buf.length()); }
+ wxString(const wxScopedWCharBuffer& buf)
+ { assign(buf.data(), buf.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.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
wxString(const wxCStrData& cstr, size_t nLength)
- : wxStringBase(cstr.AsChar(), nLength) { }
+ : m_impl(cstr.AsString().Mid(0, nLength).m_impl) {}
// and because wxString is convertible to wxCStrData and const wxChar *
// we also need to provide this one
wxString(const wxString& str, size_t nLength)
- : wxStringBase(str, 0, nLength) { }
-
-#if wxUSE_WCHAR_T
- // from wide (Unicode) string
- wxString(const wchar_t *pwz,
- const wxMBConv& conv = wxConvLibc,
- size_t nLength = npos);
-#endif // !wxUSE_WCHAR_T
-
- // from wxCharBuffer
- wxString(const wxCharBuffer& psz)
- : wxStringBase(psz) { }
-#endif // Unicode/ANSI
+ { assign(str, nLength); }
+
+
+#if wxUSE_STRING_POS_CACHE
+ ~wxString()
+ {
+ // we need to invalidate our cache entry as another string could be
+ // recreated at the same address (unlikely, but still possible, with the
+ // heap-allocated strings but perfectly common with stack-allocated ones)
+ InvalidateCache();
+ }
+#endif // wxUSE_STRING_POS_CACHE
+
+ // even if we're not built with wxUSE_STD_STRING_CONV_IN_WXSTRING == 1 it is
+ // very convenient to allow implicit conversions from std::string to wxString
+ // and vice verse as this allows to use the same strings in non-GUI and GUI
+ // code, however we don't want to unconditionally add this ctor as it would
+ // make wx lib dependent on libstdc++ on some Linux versions which is bad, so
+ // instead we ask the client code to define this wxUSE_STD_STRING symbol if
+ // they need it
+#if wxUSE_STD_STRING
+ #if wxUSE_UNICODE_WCHAR
+ wxString(const wxStdWideString& str) : m_impl(str) {}
+ #else // UTF-8 or ANSI
+ wxString(const wxStdWideString& str)
+ { assign(str.c_str(), str.length()); }
+ #endif
+
+ #if !wxUSE_UNICODE // ANSI build
+ // FIXME-UTF8: do this in UTF8 build #if wxUSE_UTF8_LOCALE_ONLY, too
+ wxString(const std::string& str) : m_impl(str) {}
+ #else // Unicode
+ wxString(const std::string& str)
+ { assign(str.c_str(), str.length()); }
+ #endif
+#endif // wxUSE_STD_STRING
+
+ // Also always provide explicit conversions to std::[w]string in any case,
+ // see below for the implicit ones.
+#if wxUSE_STD_STRING
+ // We can avoid a copy if we already use this string type internally,
+ // otherwise we create a copy on the fly:
+ #if wxUSE_UNICODE_WCHAR && wxUSE_STL_BASED_WXSTRING
+ #define wxStringToStdWstringRetType const wxStdWideString&
+ const wxStdWideString& ToStdWstring() const { return m_impl; }
+ #else
+ // wxStringImpl is either not std::string or needs conversion
+ #define wxStringToStdWstringRetType wxStdWideString
+ wxStdWideString ToStdWstring() const
+ {
+#if wxUSE_UNICODE_WCHAR
+ wxScopedWCharBuffer buf =
+ wxScopedWCharBuffer::CreateNonOwned(m_impl.c_str(), m_impl.length());
+#else // !wxUSE_UNICODE_WCHAR
+ wxScopedWCharBuffer buf(wc_str());
+#endif
+
+ return wxStdWideString(buf.data(), buf.length());
+ }
+ #endif
+
+ #if (!wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY) && wxUSE_STL_BASED_WXSTRING
+ // wxStringImpl is std::string in the encoding we want
+ #define wxStringToStdStringRetType const std::string&
+ const std::string& ToStdString() const { return m_impl; }
+ #else
+ // wxStringImpl is either not std::string or needs conversion
+ #define wxStringToStdStringRetType std::string
+ std::string ToStdString() const
+ {
+ wxScopedCharBuffer buf(mb_str());
+ return std::string(buf.data(), buf.length());
+ }
+ #endif
+
+#if wxUSE_STD_STRING_CONV_IN_WXSTRING
+ // Implicit conversions to std::[w]string are not provided by default as
+ // they conflict with the implicit conversions to "const char/wchar_t *"
+ // which we use for backwards compatibility but do provide them if
+ // explicitly requested.
+ operator wxStringToStdStringRetType() const { return ToStdString(); }
+ operator wxStringToStdWstringRetType() const { return ToStdWstring(); }
+#endif // wxUSE_STD_STRING_CONV_IN_WXSTRING
+
+#undef wxStringToStdStringRetType
+#undef wxStringToStdWstringRetType
+
+#endif // wxUSE_STD_STRING
+
+ 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(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(this, m_impl.end()); }
+ iterator end() { return iterator(this, m_impl.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()); }
+
+ // std::string methods:
+#if wxUSE_UNICODE_UTF8
+ size_t length() const
+ {
+#if wxUSE_STRING_POS_CACHE
+ wxCACHE_PROFILE_FIELD_INC(lentot);
+
+ Cache::Element * const cache = GetCacheElement();
+
+ if ( cache->len == npos )
+ {
+ // it's probably not worth trying to be clever and using cache->pos
+ // here as it's probably 0 anyhow -- you usually call length() before
+ // starting to index the string
+ cache->len = end() - begin();
+ }
+ else
+ {
+ wxCACHE_PROFILE_FIELD_INC(lenhits);
+
+ wxSTRING_CACHE_ASSERT( (int)cache->len == end() - begin() );
+ }
+
+ return cache->len;
+#else // !wxUSE_STRING_POS_CACHE
+ return end() - begin();
+#endif // wxUSE_STRING_POS_CACHE/!wxUSE_STRING_POS_CACHE
+ }
+#else
+ size_t length() const { return m_impl.length(); }
+#endif
+
+ size_type size() const { return length(); }
+ size_type max_size() const { return npos; }
+
+ bool empty() const { return m_impl.empty(); }
+
+ // NB: these methods don't have a well-defined meaning in UTF-8 case
+ size_type capacity() const { return m_impl.capacity(); }
+ void reserve(size_t sz) { m_impl.reserve(sz); }
+
+ void resize(size_t nSize, wxUniChar ch = wxT('\0'))
+ {
+ const size_t len = length();
+ if ( nSize == len)
+ return;
+
+#if wxUSE_UNICODE_UTF8
+ if ( nSize < len )
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ // 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 // can use (presumably faster) resize() version
+#endif // wxUSE_UNICODE_UTF8
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl.resize(nSize, (wxStringCharType)ch);
+ }
+ }
+
+ wxString substr(size_t nStart = 0, size_t nLen = npos) const
+ {
+ size_t pos, len;
+ PosLenToImpl(nStart, nLen, &pos, &len);
+ return FromImpl(m_impl.substr(pos, len));
+ }
// generic attributes & operations
// as standard strlen()
// truncate the string to given length
wxString& Truncate(size_t uiLen);
// empty string contents
- void Empty()
- {
- Truncate(0);
-
- wxASSERT_MSG( empty(), _T("string not empty after call to Empty()?") );
- }
+ void Empty() { clear(); }
// empty the string and free memory
- void Clear()
- {
- wxString tmp(wxEmptyString);
- swap(tmp);
- }
+ void Clear() { clear(); }
// contents test
// Is an ascii value
// data access (all indexes are 0 based)
// read access
+ wxUniChar at(size_t n) const
+ { return wxStringOperations::DecodeChar(m_impl.begin() + PosToImpl(n)); }
wxUniChar GetChar(size_t n) const
{ return at(n); }
// read/write access
+ wxUniCharRef at(size_t n)
+ { return *GetIterForNthChar(n); }
wxUniCharRef GetWritableChar(size_t n)
{ return at(n); }
// write access
- void SetChar(size_t n, wxUniChar ch)
+ void SetChar(size_t n, wxUniChar ch)
{ at(n) = ch; }
// get last character
- wxUniChar Last() const
- {
- wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
-
- return at(length() - 1);
- }
+ wxUniChar Last() const
+ {
+ wxASSERT_MSG( !empty(), wxT("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(), wxT("wxString: index out of bounds") );
+ return *rbegin();
+ }
/*
Note that we we must define all of the overloads below to avoid
ambiguity when using str[0].
*/
wxUniChar operator[](int n) const
- { return wxStringBase::at(n); }
+ { return at(n); }
wxUniChar operator[](long n) const
- { return wxStringBase::at(n); }
+ { return at(n); }
wxUniChar operator[](size_t n) const
- { return wxStringBase::at(n); }
+ { return at(n); }
#ifndef wxSIZE_T_IS_UINT
wxUniChar operator[](unsigned int n) const
- { return wxStringBase::at(n); }
+ { return at(n); }
#endif // size_t != unsigned int
// operator versions of GetWriteableChar()
wxUniCharRef operator[](int n)
- { return wxStringBase::at(n); }
+ { return at(n); }
wxUniCharRef operator[](long n)
- { return wxStringBase::at(n); }
+ { return at(n); }
wxUniCharRef operator[](size_t n)
- { return wxStringBase::at(n); }
+ { return at(n); }
#ifndef wxSIZE_T_IS_UINT
wxUniCharRef operator[](unsigned int n)
- { return wxStringBase::at(n); }
+ { return at(n); }
#endif // size_t != unsigned int
- // explicit conversion to C string (use this with printf()!)
+
+ /*
+ Overview of wxString conversions, implicit and explicit:
+
+ - wxString has a std::[w]string-like c_str() method, however it does
+ not return a C-style string directly but instead returns wxCStrData
+ helper object which is convertible to either "char *" narrow string
+ or "wchar_t *" wide string. Usually the correct conversion will be
+ applied by the compiler automatically but if this doesn't happen you
+ need to explicitly choose one using wxCStrData::AsChar() or AsWChar()
+ methods or another wxString conversion function.
+
+ - One of the places where the conversion does *NOT* happen correctly is
+ when c_str() is passed to a vararg function such as printf() so you
+ must *NOT* use c_str() with them. Either use wxPrintf() (all wx
+ functions do handle c_str() correctly, even if they appear to be
+ vararg (but they're not, really)) or add an explicit AsChar() or, if
+ compatibility with previous wxWidgets versions is important, add a
+ cast to "const char *".
+
+ - In non-STL mode only, wxString is also implicitly convertible to
+ wxCStrData. The same warning as above applies.
+
+ - c_str() is polymorphic as it can be converted to either narrow or
+ wide string. If you explicitly need one or the other, choose to use
+ mb_str() (for narrow) or wc_str() (for wide) instead. Notice that
+ these functions can return either the pointer to string directly (if
+ this is what the string uses internally) or a temporary buffer
+ containing the string and convertible to it. Again, conversion will
+ usually be done automatically by the compiler but beware of the
+ vararg functions: you need an explicit cast when using them.
+
+ - There are also non-const versions of mb_str() and wc_str() called
+ char_str() and wchar_str(). They are only meant to be used with
+ non-const-correct functions and they always return buffers.
+
+ - Finally wx_str() returns whatever string representation is used by
+ wxString internally. It may be either a narrow or wide string
+ depending on wxWidgets build mode but it will always be a raw pointer
+ (and not a buffer).
+ */
+
+ // explicit conversion to wxCStrData
wxCStrData c_str() const { return wxCStrData(this); }
+ wxCStrData data() const { return c_str(); }
- // implicit conversion to C string
+ // implicit conversion to wxCStrData
operator wxCStrData() const { return c_str(); }
- operator const wxChar*() const { return c_str(); }
+
+ // the first two operators conflict with operators for conversion to
+ // std::string and they must be disabled if those conversions are enabled;
+ // 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_STD_STRING_CONV_IN_WXSTRING
+ operator const char*() const { return c_str(); }
+ operator const wchar_t*() const { return c_str(); }
+
+ // implicit conversion to untyped pointer for compatibility with previous
+ // wxWidgets versions: this is the same as conversion to const char * so it
+ // may fail!
+ operator const void*() const { return c_str(); }
+#endif // !wxUSE_STD_STRING_CONV_IN_WXSTRING
// identical to c_str(), for MFC compatibility
const wxCStrData GetData() const { return c_str(); }
// explicit conversion to C string in internal representation (char*,
// wchar_t*, UTF-8-encoded char*, depending on the build):
- const_pointer wx_str() const { return data(); }
+ const wxStringCharType *wx_str() const { return m_impl.c_str(); }
+
+ // conversion to *non-const* multibyte or widestring buffer; modifying
+ // returned buffer won't affect the string, these methods are only useful
+ // for passing values to const-incorrect functions
+ wxWritableCharBuffer char_str(const wxMBConv& conv = wxConvLibc) const
+ { 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 <typename T>
+ wxCharTypeBuffer<T> 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<T>::Get(*this, len);
+#else // ANSI
+ // T can only be char in ANSI build
+ if ( len )
+ *len = length();
+
+ return wxCharTypeBuffer<T>::CreateNonOwned(wx_str(), length());
+#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
// 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
- const wxCharBuffer ToAscii() const;
+ static wxString FromAscii(const char *ascii, size_t len);
+ static wxString FromAscii(const char *ascii);
+ static wxString FromAscii(char ascii);
+ const wxScopedCharBuffer 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 FromUTF8Unchecked(const char *utf8)
+ {
+ if ( !utf8 )
+ return wxEmptyString;
+
+ wxASSERT( wxStringOperations::IsValidUtf8String(utf8) );
+ return FromImpl(wxStringImpl(utf8));
+ }
+ 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 wxScopedCharBuffer utf8_str() const
+ { return wxCharBuffer::CreateNonOwned(m_impl.c_str(), m_impl.length()); }
+
+ // 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, 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 wxScopedCharBuffer utf8_str() const { return mb_str(wxMBConvUTF8()); }
+#else // ANSI
+ static wxString FromUTF8(const char *utf8)
+ { return wxString(wxMBConvUTF8().cMB2WC(utf8)); }
+ static wxString FromUTF8(const char *utf8, size_t len)
+ {
+ size_t wlen;
+ wxScopedWCharBuffer 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;
+ wxScopedWCharBuffer 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 wxScopedCharBuffer utf8_str() const
+ { return wxMBConvUTF8().cWC2MB(wc_str()); }
+#endif
+
+ const wxScopedCharBuffer ToUTF8() const { return utf8_str(); }
+
+ // functions for storing binary data in wxString:
+#if wxUSE_UNICODE
+ static wxString From8BitData(const char *data, size_t len)
+ { return wxString(data, wxConvISO8859_1, len); }
+ // version for NUL-terminated data:
+ static wxString From8BitData(const char *data)
+ { return wxString(data, wxConvISO8859_1); }
+ const wxScopedCharBuffer To8BitData() const
+ { return mb_str(wxConvISO8859_1); }
+#else // ANSI
+ static wxString From8BitData(const char *data, size_t len)
+ { return wxString(data, len); }
+ // version for NUL-terminated data:
+ static wxString From8BitData(const char *data)
+ { return wxString(data); }
+ const wxScopedCharBuffer To8BitData() const
+ { return wxScopedCharBuffer::CreateNonOwned(wx_str(), length()); }
+#endif // Unicode/ANSI
+
// conversions with (possible) format conversions: have to return a
// buffer with temporary data
//
// accepting the file names. The return value is always the same, but the
// type differs because a function may either return pointer to the buffer
// directly or have to use intermediate buffer for translation.
+
#if wxUSE_UNICODE
- const wxCharBuffer mb_str(const wxMBConv& conv = wxConvLibc) const;
- const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
+ // this is an optimization: even though using mb_str(wxConvLibc) does the
+ // same thing (i.e. returns pointer to internal representation as locale is
+ // always an UTF-8 one) in wxUSE_UTF8_LOCALE_ONLY case, we can avoid the
+ // extra checks and the temporary buffer construction by providing a
+ // separate mb_str() overload
+#if wxUSE_UTF8_LOCALE_ONLY
+ const char* mb_str() const { return wx_str(); }
+ const wxScopedCharBuffer mb_str(const wxMBConv& conv) const
+ {
+ return AsCharBuf(conv);
+ }
+#else // !wxUSE_UTF8_LOCALE_ONLY
+ const wxScopedCharBuffer mb_str(const wxMBConv& conv = wxConvLibc) const
+ {
+ return AsCharBuf(conv);
+ }
+#endif // wxUSE_UTF8_LOCALE_ONLY/!wxUSE_UTF8_LOCALE_ONLY
- const wxChar* wc_str() const { return c_str(); }
+ const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
+#if wxUSE_UNICODE_WCHAR
+ const wchar_t* wc_str() const { return wx_str(); }
+#elif wxUSE_UNICODE_UTF8
+ const wxScopedWCharBuffer wc_str() const
+ { return AsWCharBuf(wxMBConvStrictUTF8()); }
+#endif
// for compatibility with !wxUSE_UNICODE version
- const wxChar* wc_str(const wxMBConv& WXUNUSED(conv)) const { return c_str(); }
+ const wxWX2WCbuf wc_str(const wxMBConv& WXUNUSED(conv)) const
+ { return wc_str(); }
#if wxMBFILES
- const wxCharBuffer fn_str() const { return mb_str(wxConvFile); }
+ const wxScopedCharBuffer fn_str() const { return mb_str(wxConvFile); }
#else // !wxMBFILES
- const wxChar* fn_str() const { return c_str(); }
+ const wxWX2WCbuf fn_str() const { return wc_str(); }
#endif // wxMBFILES/!wxMBFILES
+
#else // ANSI
- const wxChar* mb_str() const { return c_str(); }
+ const char* mb_str() const { return wx_str(); }
// for compatibility with wxUSE_UNICODE version
- const wxChar* mb_str(const wxMBConv& WXUNUSED(conv)) const { return c_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) const;
-#endif // wxUSE_WCHAR_T
-#ifdef __WXOSX__
- const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLocal ) ); }
+ const wxScopedWCharBuffer wc_str(const wxMBConv& conv = wxConvLibc) const
+ { return AsWCharBuf(conv); }
+
+ const wxScopedCharBuffer fn_str() const
+ { return wxConvFile.cWC2WX( wc_str( wxConvLibc ) ); }
+#endif // Unicode/ANSI
+
+#if wxUSE_UNICODE_UTF8
+ const wxScopedWCharBuffer t_str() const { return wc_str(); }
+#elif wxUSE_UNICODE_WCHAR
+ const wchar_t* t_str() const { return wx_str(); }
#else
- const wxChar* fn_str() const { return c_str(); }
+ const char* t_str() const { return wx_str(); }
#endif
-#endif // Unicode/ANSI
+
// overloaded assignment
// from another wxString
- wxString& operator=(const wxStringBase& stringSrc)
- { return (wxString&)wxStringBase::operator=(stringSrc); }
- wxString& operator=(const wxCStrData& cstr);
- // from a character
- wxString& operator=(wxUniChar ch)
- { return (wxString&)wxStringBase::operator=(ch); }
- wxString& operator=(wxUniCharRef ch)
- { return (wxString&)wxStringBase::operator=((wxUniChar)ch); }
- wxString& operator=(char ch)
- { return (wxString&)wxStringBase::operator=(wxUniChar(ch)); }
- wxString& operator=(wchar_t ch)
- { return (wxString&)wxStringBase::operator=(wxUniChar(ch)); }
+ wxString& operator=(const wxString& stringSrc)
+ {
+ if ( this != &stringSrc )
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl = stringSrc.m_impl;
+ }
+
+ return *this;
+ }
+
+ wxString& operator=(const wxCStrData& cstr)
+ { return *this = cstr.AsString(); }
+ // from a character
+ wxString& operator=(wxUniChar ch)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+#if wxUSE_UNICODE_UTF8
+ if ( !ch.IsAscii() )
+ m_impl = wxStringOperations::EncodeChar(ch);
+ else
+#endif // wxUSE_UNICODE_UTF8
+ m_impl = (wxStringCharType)ch;
+ return *this;
+ }
+
+ wxString& operator=(wxUniCharRef ch)
+ { return operator=((wxUniChar)ch); }
+ wxString& operator=(char ch)
+ { return operator=(wxUniChar(ch)); }
+ wxString& operator=(unsigned char ch)
+ { return operator=(wxUniChar(ch)); }
+ wxString& operator=(wchar_t ch)
+ { return operator=(wxUniChar(ch)); }
// from a C string - STL probably will crash on NULL,
// so we need to compensate in that case
#if wxUSE_STL_BASED_WXSTRING
- wxString& operator=(const wxChar *psz)
- { if(psz) wxStringBase::operator=(psz); else Clear(); return *this; }
-#else
- wxString& operator=(const wxChar *psz)
- { return (wxString&)wxStringBase::operator=(psz); }
-#endif
+ wxString& operator=(const char *psz)
+ {
+ wxSTRING_INVALIDATE_CACHE();
-#if wxUSE_UNICODE
- // from wxWCharBuffer
- wxString& operator=(const wxWCharBuffer& psz)
- { (void) operator=((const wchar_t *)psz); return *this; }
- // from C string
- wxString& operator=(const char* psz)
- { return operator=(wxString(psz)); }
-#else // ANSI
- // from another kind of C string
- wxString& operator=(const unsigned char* psz);
-#if wxUSE_WCHAR_T
- // from a wide string
- wxString& operator=(const wchar_t *pwz);
-#endif
- // from wxCharBuffer
- wxString& operator=(const wxCharBuffer& psz)
- { (void) operator=((const char *)psz); return *this; }
-#endif // Unicode/ANSI
+ if ( psz )
+ m_impl = ImplStr(psz);
+ else
+ clear();
+
+ return *this;
+ }
+
+ wxString& operator=(const wchar_t *pwz)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ if ( pwz )
+ m_impl = ImplStr(pwz);
+ else
+ clear();
+
+ return *this;
+ }
+#else // !wxUSE_STL_BASED_WXSTRING
+ wxString& operator=(const char *psz)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl = ImplStr(psz);
+
+ return *this;
+ }
+
+ wxString& operator=(const wchar_t *pwz)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl = ImplStr(pwz);
+
+ return *this;
+ }
+#endif // wxUSE_STL_BASED_WXSTRING/!wxUSE_STL_BASED_WXSTRING
+
+ wxString& operator=(const unsigned char *psz)
+ { return operator=((const char*)psz); }
+
+ // from wxScopedWCharBuffer
+ wxString& operator=(const wxScopedWCharBuffer& s)
+ { return assign(s); }
+ // from wxScopedCharBuffer
+ wxString& operator=(const wxScopedCharBuffer& s)
+ { return assign(s); }
// string concatenation
// in place concatenation
// string += string
wxString& operator<<(const wxString& s)
{
-#if WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL
- wxASSERT_MSG( s.GetStringData()->IsValid(),
- _T("did you forget to call UngetWriteBuf()?") );
+#if WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
+ wxASSERT_MSG( s.IsValid(),
+ wxT("did you forget to call UngetWriteBuf()?") );
#endif
append(s);
return *this;
}
// string += C string
- wxString& operator<<(const wxChar *psz)
+ wxString& operator<<(const char *psz)
{ append(psz); return *this; }
+ wxString& operator<<(const wchar_t *pwz)
+ { append(pwz); return *this; }
wxString& operator<<(const wxCStrData& psz)
- { append(psz); return *this; }
+ { append(psz.AsString()); return *this; }
// string += char
wxString& operator<<(wxUniChar ch) { append(1, ch); return *this; }
wxString& operator<<(wxUniCharRef ch) { append(1, ch); return *this; }
wxString& operator<<(char ch) { append(1, ch); return *this; }
+ wxString& operator<<(unsigned char ch) { append(1, ch); return *this; }
wxString& operator<<(wchar_t ch) { append(1, ch); return *this; }
// string += buffer (i.e. from wxGetString)
-#if wxUSE_UNICODE
- wxString& operator<<(const wxWCharBuffer& s)
- { return operator<<((const wchar_t *)s); }
- wxString& operator+=(const wxWCharBuffer& s)
- { return operator<<((const wchar_t *)s); }
-#else // !wxUSE_UNICODE
- wxString& operator<<(const wxCharBuffer& s)
- { return operator<<((const char *)s); }
- wxString& operator+=(const wxCharBuffer& s)
- { return operator<<((const char *)s); }
-#endif // wxUSE_UNICODE/!wxUSE_UNICODE
-
-#if wxUSE_UNICODE
- // string += C string in Unicode build (with conversion)
- wxString& operator<<(const char *s)
- { return operator<<(wxString(s)); }
- wxString& operator+=(const char *s)
- { return operator+=(wxString(s)); }
-#endif // wxUSE_UNICODE
+ wxString& operator<<(const wxScopedWCharBuffer& s)
+ { return append(s); }
+ wxString& operator<<(const wxScopedCharBuffer& s)
+ { return append(s); }
// string += C string
wxString& Append(const wxString& s)
append(s);
return *this;
}
+ wxString& Append(const char* psz)
+ { append(psz); return *this; }
+ wxString& Append(const wchar_t* pwz)
+ { append(pwz); return *this; }
wxString& Append(const wxCStrData& psz)
{ append(psz); return *this; }
- wxString& Append(const wxChar* psz)
+ wxString& Append(const wxScopedCharBuffer& psz)
+ { append(psz); return *this; }
+ wxString& Append(const wxScopedWCharBuffer& 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 wxScopedCharBuffer& psz, size_t nLen)
+ { append(psz, nLen); return *this; }
+ wxString& Append(const wxScopedWCharBuffer& 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; }
{ append(count, ch); return *this; }
wxString& Append(char ch, size_t count = 1u)
{ append(count, ch); return *this; }
+ wxString& Append(unsigned char ch, size_t count = 1u)
+ { append(count, ch); return *this; }
wxString& Append(wchar_t ch, size_t count = 1u)
{ append(count, ch); return *this; }
- wxString& Append(const wxChar* psz, size_t nLen)
- { append(psz, nLen); return *this; }
// prepend a string, return the string itself
wxString& Prepend(const wxString& str)
friend wxString WXDLLIMPEXP_BASE operator+(wxUniChar ch, const wxString& string);
// string with C string
friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string,
- const wxChar *psz);
+ const char *psz);
+ friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string,
+ const wchar_t *pwz);
// C string with string
- friend wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz,
+ friend wxString WXDLLIMPEXP_BASE operator+(const char *psz,
+ const wxString& string);
+ friend wxString WXDLLIMPEXP_BASE operator+(const wchar_t *pwz,
const wxString& string);
// stream-like functions
// insert an int into string
wxString& operator<<(int i)
- { return (*this) << Format(_T("%d"), i); }
+ { return (*this) << Format(wxT("%d"), i); }
// insert an unsigned int into string
wxString& operator<<(unsigned int ui)
- { return (*this) << Format(_T("%u"), ui); }
+ { return (*this) << Format(wxT("%u"), ui); }
// insert a long into string
wxString& operator<<(long l)
- { return (*this) << Format(_T("%ld"), l); }
+ { return (*this) << Format(wxT("%ld"), l); }
// insert an unsigned long into string
wxString& operator<<(unsigned long ul)
- { return (*this) << Format(_T("%lu"), ul); }
-#if defined wxLongLong_t && !defined wxLongLongIsLong
+ { return (*this) << Format(wxT("%lu"), ul); }
+#ifdef wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
// insert a long long if they exist and aren't longs
wxString& operator<<(wxLongLong_t ll)
{
- const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("d");
- return (*this) << Format(fmt, ll);
+ return (*this) << Format("%" wxLongLongFmtSpec "d", ll);
}
// insert an unsigned long long
wxString& operator<<(wxULongLong_t ull)
{
- const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("u");
- return (*this) << Format(fmt , ull);
+ return (*this) << Format("%" wxLongLongFmtSpec "u" , ull);
}
-#endif
+#endif // wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
// insert a float into string
wxString& operator<<(float f)
- { return (*this) << Format(_T("%f"), f); }
+ { return (*this) << Format(wxT("%f"), f); }
// insert a double into string
wxString& operator<<(double d)
- { return (*this) << Format(_T("%g"), d); }
+ { return (*this) << Format(wxT("%g"), d); }
// string comparison
// case-sensitive comparison (returns a value < 0, = 0 or > 0)
- int Cmp(const wxChar *psz) const;
- int Cmp(const wxString& s) const;
+ int Cmp(const char *psz) const
+ { return compare(psz); }
+ int Cmp(const wchar_t *pwz) const
+ { return compare(pwz); }
+ int Cmp(const wxString& s) const
+ { return compare(s); }
+ int Cmp(const wxCStrData& s) const
+ { return compare(s); }
+ int Cmp(const wxScopedCharBuffer& s) const
+ { return compare(s); }
+ int Cmp(const wxScopedWCharBuffer& s) const
+ { return compare(s); }
// same as Cmp() but not case-sensitive
- int CmpNoCase(const wxChar *psz) const;
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 wxChar *psz, bool compareWithCase = true) const
- { return (compareWithCase ? Cmp(psz) : CmpNoCase(psz)) == 0; }
+ bool IsSameAs(const wxString& str, bool compareWithCase = true) const
+ {
+#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 wxScopedCharBuffer& str, bool compareWithCase = true) const
+ { return IsSameAs(str.data(), compareWithCase); }
+ bool IsSameAs(const wxScopedWCharBuffer& 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); }
+ bool IsSameAs(char c, bool compareWithCase = true) const
+ { return IsSameAs(wxUniChar(c), compareWithCase); }
+ bool IsSameAs(unsigned char c, bool compareWithCase = true) const
+ { return IsSameAs(wxUniChar(c), compareWithCase); }
+ bool IsSameAs(wchar_t c, bool compareWithCase = true) const
+ { return IsSameAs(wxUniChar(c), compareWithCase); }
+ bool IsSameAs(int c, bool compareWithCase = true) const
+ { return IsSameAs(wxUniChar(c), compareWithCase); }
// simple sub-string extraction
// return substring starting at nFirst of length nCount (or till the end
// 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;
// get last nCount characters
wxString Right(size_t nCount) const;
- // get all characters before the first occurance of ch
- // (returns the whole string if ch not found)
- wxString BeforeFirst(wxUniChar ch) const;
- // get all characters before the last occurence of ch
- // (returns empty string if ch not found)
- wxString BeforeLast(wxUniChar ch) const;
- // get all characters after the first occurence of ch
+ // get all characters before the first occurrence of ch
+ // (returns the whole string if ch not found) and also put everything
+ // following the first occurrence of ch into rest if it's non-NULL
+ wxString BeforeFirst(wxUniChar ch, wxString *rest = NULL) const;
+ // get all characters before the last occurrence of ch
+ // (returns empty string if ch not found) and also put everything
+ // following the last occurrence of ch into rest if it's non-NULL
+ wxString BeforeLast(wxUniChar ch, wxString *rest = NULL) const;
+ // get all characters after the first occurrence of ch
// (returns empty string if ch not found)
wxString AfterFirst(wxUniChar ch) const;
- // get all characters after the last occurence of ch
+ // get all characters after the last occurrence of ch
// (returns the whole string if ch not found)
wxString AfterLast(wxUniChar ch) const;
// convert to upper case in place, return the string itself
wxString& MakeUpper();
// convert to upper case, return the copy of the string
- // Here's something to remember: BC++ doesn't like returns in inlines.
- wxString Upper() const ;
+ wxString Upper() const { return wxString(*this).MakeUpper(); }
// convert to lower case in place, return the string itself
wxString& MakeLower();
// convert to lower case, return the copy of the string
- wxString Lower() const ;
+ wxString Lower() const { return wxString(*this).MakeLower(); }
+ // convert the first character to the upper case and the rest to the
+ // lower one, return the modified string itself
+ wxString& MakeCapitalized();
+ // convert the first character to the upper case and the rest to the
+ // lower one, return the copy of the string
+ wxString Capitalize() const { return wxString(*this).MakeCapitalized(); }
// trimming/padding whitespace (either side) and truncating
// remove spaces from left or from right (default) side
// searching and replacing
// searching (return starting index, or -1 if not found)
int Find(wxUniChar ch, bool bFromEnd = false) const; // like strchr/strrchr
+ int Find(wxUniCharRef ch, bool bFromEnd = false) const
+ { return Find(wxUniChar(ch), bFromEnd); }
+ int Find(char ch, bool bFromEnd = false) const
+ { return Find(wxUniChar(ch), bFromEnd); }
+ int Find(unsigned char ch, bool bFromEnd = false) const
+ { return Find(wxUniChar(ch), bFromEnd); }
+ int Find(wchar_t ch, bool bFromEnd = false) const
+ { return Find(wxUniChar(ch), bFromEnd); }
// searching (return starting index, or -1 if not found)
- int Find(const wxChar *pszSub) const; // like strstr
- // replace first (or all of bReplaceAll) occurences of substring with
+ int Find(const wxString& sub) const // like strstr
+ {
+ size_type idx = find(sub);
+ return (idx == npos) ? wxNOT_FOUND : (int)idx;
+ }
+ int Find(const char *sub) const // like strstr
+ {
+ size_type idx = find(sub);
+ return (idx == npos) ? wxNOT_FOUND : (int)idx;
+ }
+ int Find(const wchar_t *sub) const // like strstr
+ {
+ size_type idx = find(sub);
+ return (idx == npos) ? wxNOT_FOUND : (int)idx;
+ }
+
+ int Find(const wxCStrData& sub) const
+ { return Find(sub.AsString()); }
+ int Find(const wxScopedCharBuffer& sub) const
+ { return Find(sub.data()); }
+ int Find(const wxScopedWCharBuffer& sub) const
+ { return Find(sub.data()); }
+
+ // replace first (or all of bReplaceAll) occurrences of substring with
// another string, returns the number of replacements made
- size_t Replace(const wxChar *szOld,
- const wxChar *szNew,
+ size_t Replace(const wxString& strOld,
+ const wxString& strNew,
bool bReplaceAll = true);
// check if the string contents matches a mask containing '*' and '?'
- bool Matches(const wxChar *szMask) const;
-
- // conversion to numbers: all functions return true only if the whole
- // string is a number and put the value of this number into the pointer
- // provided, the base is the numeric base in which the conversion should be
- // done and must be comprised between 2 and 36 or be 0 in which case the
- // standard C rules apply (leading '0' => octal, "0x" => hex)
- // convert to a signed integer
- bool ToLong(long *val, int base = 10) const;
- // convert to an unsigned integer
- bool ToULong(unsigned long *val, int base = 10) const;
- // convert to wxLongLong
+ bool Matches(const wxString& mask) const;
+
+ // conversion to numbers: all functions return true only if the whole
+ // string is a number and put the value of this number into the pointer
+ // provided, the base is the numeric base in which the conversion should be
+ // done and must be comprised between 2 and 36 or be 0 in which case the
+ // standard C rules apply (leading '0' => octal, "0x" => hex)
+ // convert to a signed integer
+ bool ToLong(long *val, int base = 10) const;
+ // convert to an unsigned integer
+ bool ToULong(unsigned long *val, int base = 10) const;
+ // convert to wxLongLong
#if defined(wxLongLong_t)
- bool ToLongLong(wxLongLong_t *val, int base = 10) const;
- // convert to wxULongLong
- bool ToULongLong(wxULongLong_t *val, int base = 10) const;
+ bool ToLongLong(wxLongLong_t *val, int base = 10) const;
+ // convert to wxULongLong
+ bool ToULongLong(wxULongLong_t *val, int base = 10) const;
#endif // wxLongLong_t
- // convert to a double
- bool ToDouble(double *val) const;
-
+ // convert to a double
+ bool ToDouble(double *val) const;
+
+ // conversions to numbers using C locale
+ // convert to a signed integer
+ bool ToCLong(long *val, int base = 10) const;
+ // convert to an unsigned integer
+ bool ToCULong(unsigned long *val, int base = 10) const;
+ // convert to a double
+ bool ToCDouble(double *val) const;
+
+ // create a string representing the given floating point number with the
+ // default (like %g) or fixed (if precision >=0) precision
+ // in the current locale
+ static wxString FromDouble(double val, int precision = -1);
+ // in C locale
+ static wxString FromCDouble(double val, int precision = -1);
#ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN
// formatted input/output
// as sprintf(), returns the number of characters written or < 0 on error
// (take 'this' into account in attribute parameter count)
- // int Printf(const wxChar *pszFormat, ...);
- WX_DEFINE_VARARG_FUNC(int, Printf, DoPrintf)
+ // int Printf(const wxString& format, ...);
+ WX_DEFINE_VARARG_FUNC(int, Printf, 1, (const wxFormatString&),
+ DoPrintfWchar, DoPrintfUtf8)
+#ifdef __WATCOMC__
+ // 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
int PrintfV(const wxString& format, va_list argptr);
#ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN
// returns the string containing the result of Printf() to it
- // static wxString Format(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_1;
- WX_DEFINE_VARARG_FUNC(static wxString, Format, DoFormat)
+ // static wxString Format(const wxString& format, ...) WX_ATTRIBUTE_PRINTF_1;
+ WX_DEFINE_VARARG_FUNC(static wxString, Format, 1, (const wxFormatString&),
+ DoFormatWchar, DoFormatUtf8)
+#ifdef __WATCOMC__
+ // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
+ 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
static wxString FormatV(const wxString& format, va_list argptr);
// 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();
-#if WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING
+#if WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
// These are deprecated, use wxStringBuffer or wxStringBufferLength instead
//
// get writable buffer of at least nLen bytes. Unget() *must* be called
// a.s.a.p. to put string back in a reasonable state!
- wxDEPRECATED( wxChar *GetWriteBuf(size_t nLen) );
+ wxDEPRECATED( wxStringCharType *GetWriteBuf(size_t nLen) );
// call this immediately after GetWriteBuf() has been used
wxDEPRECATED( void UngetWriteBuf() );
wxDEPRECATED( void UngetWriteBuf(size_t nLen) );
-#endif // WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING
+#endif // WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING && wxUSE_UNICODE_UTF8
// wxWidgets version 1 compatibility functions
#ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN
// use Printf()
// (take 'this' into account in attribute parameter count)
- // int sprintf(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_2;
- WX_DEFINE_VARARG_FUNC(int, sprintf, DoPrintf)
+ // int sprintf(const wxString& format, ...) WX_ATTRIBUTE_PRINTF_2;
+ WX_DEFINE_VARARG_FUNC(int, sprintf, 1, (const wxFormatString&),
+ DoPrintfWchar, DoPrintfUtf8)
+#ifdef __WATCOMC__
+ // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
+ 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
// use Cmp()
- inline int CompareTo(const wxChar* psz, caseCompare cmp = exact) const
+ int CompareTo(const wxChar* psz, caseCompare cmp = exact) const
{ return cmp == exact ? Cmp(psz) : CmpNoCase(psz); }
- // use Len
+ // use length()
size_t Length() const { return length(); }
// Count the number of characters
int Freq(wxUniChar ch) const;
{ return (wxString&)erase( nStart, nLen ); }
// use Find()
- int First( const wxUniChar ch ) const { return Find(ch); }
+ int First( wxUniChar ch ) const { return Find(ch); }
+ int First( wxUniCharRef ch ) const { return Find(ch); }
int First( char ch ) const { return Find(ch); }
+ int First( unsigned char ch ) const { return Find(ch); }
int First( wchar_t ch ) const { return Find(ch); }
- int First( const wxChar* psz ) const { return Find(psz); }
- int First( const wxString &str ) const { return Find(str); }
- int Last( const wxUniChar ch ) const { return Find(ch, true); }
+ int First( const wxString& str ) const { return Find(str); }
+ int Last( wxUniChar ch ) const { return Find(ch, true); }
bool Contains(const wxString& str) const { return Find(str) != wxNOT_FOUND; }
// use empty()
// take nLen chars starting at nPos
wxString(const wxString& str, size_t nPos, size_t nLen)
- : wxStringBase(str, nPos, nLen) { }
- // take all characters from pStart to pEnd
- wxString(const void *pStart, const void *pEnd)
- : wxStringBase((const wxChar*)pStart, (const wxChar*)pEnd) { }
+ { assign(str, nPos, nLen); }
+ // take all characters from first to last
wxString(const_iterator first, const_iterator last)
- : wxStringBase(first, last) { }
- wxString(iterator first, iterator last)
- : wxStringBase(first, last) { }
+ : m_impl(first.impl(), last.impl()) { }
+#if WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
+ // the 2 overloads below are for compatibility with the existing code using
+ // pointers instead of iterators
+ wxString(const char *first, const char *last)
+ {
+ SubstrBufFromMB str(ImplStr(first, last - first));
+ m_impl.assign(str.data, str.len);
+ }
+ wxString(const wchar_t *first, const wchar_t *last)
+ {
+ SubstrBufFromWC str(ImplStr(first, last - first));
+ m_impl.assign(str.data, str.len);
+ }
+ // and this one is needed to compile code adding offsets to c_str() result
+ wxString(const wxCStrData& first, const wxCStrData& last)
+ : m_impl(CreateConstIterator(first).impl(),
+ CreateConstIterator(last).impl())
+ {
+ wxASSERT_MSG( first.m_str == last.m_str,
+ wxT("pointers must be into the same string") );
+ }
+#endif // WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
// lib.string.modifiers
// append elements str[pos], ..., str[pos+n]
wxString& append(const wxString& str, size_t pos, size_t n)
- { return (wxString&)wxStringBase::append(str, pos, n); }
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+ size_t from, len;
+ str.PosLenToImpl(pos, n, &from, &len);
+ m_impl.append(str.m_impl, from, len);
+ return *this;
+ }
// append a string
wxString& append(const wxString& str)
- { return (wxString&)wxStringBase::append(str); }
- wxString& append(const wxCStrData& str)
- { return (wxString&)wxStringBase::append(str.AsString()); }
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(str.length());
+
+ m_impl.append(str.m_impl);
+ return *this;
+ }
+
// append first n (or all if n == npos) characters of sz
- wxString& append(const wxChar *sz)
- { return (wxString&)wxStringBase::append(sz); }
- wxString& append(const wxChar *sz, size_t n)
- { return (wxString&)wxStringBase::append(sz, n); }
+ wxString& append(const char *sz)
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl.append(ImplStr(sz));
+ return *this;
+ }
+
+ wxString& append(const wchar_t *sz)
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl.append(ImplStr(sz));
+ return *this;
+ }
+
+ wxString& append(const char *sz, size_t n)
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ SubstrBufFromMB str(ImplStr(sz, n));
+ m_impl.append(str.data, str.len);
+ return *this;
+ }
+ wxString& append(const wchar_t *sz, size_t n)
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+ SubstrBufFromWC str(ImplStr(sz, n));
+ m_impl.append(str.data, str.len);
+ return *this;
+ }
+
+ wxString& append(const wxCStrData& str)
+ { return append(str.AsString()); }
+ wxString& append(const wxScopedCharBuffer& str)
+ { return append(str.data(), str.length()); }
+ wxString& append(const wxScopedWCharBuffer& str)
+ { return append(str.data(), str.length()); }
+ wxString& append(const wxCStrData& str, size_t n)
+ { return append(str.AsString(), 0, n); }
+ wxString& append(const wxScopedCharBuffer& str, size_t n)
+ { return append(str.data(), n); }
+ wxString& append(const wxScopedWCharBuffer& str, size_t n)
+ { return append(str.data(), n); }
+
// append n copies of ch
wxString& append(size_t n, wxUniChar ch)
- { return (wxString&)wxStringBase::append(n, ch); }
+ {
+#if wxUSE_UNICODE_UTF8
+ if ( !ch.IsAscii() )
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl.append(wxStringOperations::EncodeNChars(n, ch));
+ }
+ else // ASCII
+#endif
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+ 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)
- { return (wxString&)wxStringBase::append(first, last); }
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl.append(first.impl(), last.impl());
+ return *this;
+ }
+#if WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
+ wxString& append(const char *first, const char *last)
+ { return append(first, last - first); }
+ wxString& append(const wchar_t *first, const wchar_t *last)
+ { return append(first, last - first); }
+ wxString& append(const wxCStrData& first, const wxCStrData& last)
+ { return append(CreateConstIterator(first), CreateConstIterator(last)); }
+#endif // WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
// same as `this_string = str'
wxString& assign(const wxString& str)
- { return (wxString&)wxStringBase::assign(str); }
+ {
+ wxSTRING_SET_CACHED_LENGTH(str.length());
+
+ m_impl = str.m_impl;
+
+ return *this;
+ }
+
+ // This is a non-standard-compliant overload taking the first "len"
+ // characters of the source string.
+ wxString& assign(const wxString& str, size_t len)
+ {
+#if wxUSE_STRING_POS_CACHE
+ // It is legal to pass len > str.length() to wxStringImpl::assign() but
+ // by restricting it here we save some work for that function so it's not
+ // really less efficient and, at the same time, ensure that we don't
+ // cache invalid length.
+ const size_t lenSrc = str.length();
+ if ( len > lenSrc )
+ len = lenSrc;
+
+ wxSTRING_SET_CACHED_LENGTH(len);
+#endif // wxUSE_STRING_POS_CACHE
+
+ m_impl.assign(str.m_impl, 0, str.LenToImpl(len));
+
+ return *this;
+ }
+
// same as ` = str[pos..pos + n]
wxString& assign(const wxString& str, size_t pos, size_t n)
- { return (wxString&)wxStringBase::assign(str, pos, n); }
+ {
+ size_t from, len;
+ str.PosLenToImpl(pos, n, &from, &len);
+ m_impl.assign(str.m_impl, from, len);
+
+ // it's important to call this after PosLenToImpl() above in case str is
+ // the same string as this one
+ wxSTRING_SET_CACHED_LENGTH(n);
+
+ return *this;
+ }
+
// same as `= first n (or all if n == npos) characters of sz'
- wxString& assign(const wxChar *sz)
- { return (wxString&)wxStringBase::assign(sz); }
- wxString& assign(const wxChar *sz, size_t n)
- { return (wxString&)wxStringBase::assign(sz, n); }
+ wxString& assign(const char *sz)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.assign(ImplStr(sz));
+
+ return *this;
+ }
+
+ wxString& assign(const wchar_t *sz)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.assign(ImplStr(sz));
+
+ return *this;
+ }
+
+ wxString& assign(const char *sz, size_t n)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ SubstrBufFromMB str(ImplStr(sz, n));
+ m_impl.assign(str.data, str.len);
+
+ return *this;
+ }
+
+ wxString& assign(const wchar_t *sz, size_t n)
+ {
+ wxSTRING_SET_CACHED_LENGTH(n);
+
+ SubstrBufFromWC str(ImplStr(sz, n));
+ m_impl.assign(str.data, str.len);
+
+ return *this;
+ }
+
+ wxString& assign(const wxCStrData& str)
+ { return assign(str.AsString()); }
+ wxString& assign(const wxScopedCharBuffer& str)
+ { return assign(str.data(), str.length()); }
+ wxString& assign(const wxScopedWCharBuffer& str)
+ { return assign(str.data(), str.length()); }
+ wxString& assign(const wxCStrData& str, size_t len)
+ { return assign(str.AsString(), len); }
+ wxString& assign(const wxScopedCharBuffer& str, size_t len)
+ { return assign(str.data(), len); }
+ wxString& assign(const wxScopedWCharBuffer& str, size_t len)
+ { return assign(str.data(), len); }
+
// same as `= n copies of ch'
wxString& assign(size_t n, wxUniChar ch)
- { return (wxString&)wxStringBase::assign(n, ch); }
+ {
+ wxSTRING_SET_CACHED_LENGTH(n);
+
+#if wxUSE_UNICODE_UTF8
+ if ( !ch.IsAscii() )
+ m_impl.assign(wxStringOperations::EncodeNChars(n, ch));
+ else
+#endif
+ m_impl.assign(n, (wxStringCharType)ch);
+
+ return *this;
+ }
+
+ wxString& assign(size_t n, wxUniCharRef ch)
+ { return assign(n, wxUniChar(ch)); }
+ wxString& assign(size_t n, char ch)
+ { return assign(n, wxUniChar(ch)); }
+ wxString& assign(size_t n, unsigned char ch)
+ { return assign(n, wxUniChar(ch)); }
+ wxString& assign(size_t n, wchar_t ch)
+ { return assign(n, wxUniChar(ch)); }
+
// assign from first to last
wxString& assign(const_iterator first, const_iterator last)
- { return (wxString&)wxStringBase::assign(first, last); }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.assign(first.impl(), last.impl());
+
+ return *this;
+ }
+#if WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
+ wxString& assign(const char *first, const char *last)
+ { return assign(first, last - first); }
+ wxString& assign(const wchar_t *first, const wchar_t *last)
+ { return assign(first, last - first); }
+ wxString& assign(const wxCStrData& first, const wxCStrData& last)
+ { return assign(CreateConstIterator(first), CreateConstIterator(last)); }
+#endif // WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
// string comparison
-#if !defined(HAVE_STD_STRING_COMPARE)
- int compare(const wxStringBase& str) const;
+ int compare(const wxString& str) const;
+ int compare(const char* sz) const;
+ int compare(const wchar_t* sz) const;
+ int compare(const wxCStrData& str) const
+ { return compare(str.AsString()); }
+ int compare(const wxScopedCharBuffer& str) const
+ { return compare(str.data()); }
+ int compare(const wxScopedWCharBuffer& str) const
+ { return compare(str.data()); }
// comparison with a substring
- int compare(size_t nStart, size_t nLen, const wxStringBase& str) const;
+ int compare(size_t nStart, size_t nLen, const wxString& str) const;
// comparison of 2 substrings
int compare(size_t nStart, size_t nLen,
- const wxStringBase& str, size_t nStart2, size_t nLen2) const;
- // just like strcmp()
- int compare(const wxChar* sz) const;
+ const wxString& str, size_t nStart2, size_t nLen2) const;
// substring comparison with first nCount characters of sz
int compare(size_t nStart, size_t nLen,
- const wxChar* sz, size_t nCount = npos) const;
-#endif // !defined HAVE_STD_STRING_COMPARE
+ const char* sz, size_t nCount = npos) const;
+ int compare(size_t nStart, size_t nLen,
+ const wchar_t* sz, size_t nCount = npos) const;
// insert another string
wxString& insert(size_t nPos, const wxString& str)
- { return (wxString&)wxStringBase::insert(nPos, str); }
+ { insert(GetIterForNthChar(nPos), str.begin(), str.end()); return *this; }
// insert n chars of str starting at nStart (in str)
wxString& insert(size_t nPos, const wxString& str, size_t nStart, size_t n)
- { return (wxString&)wxStringBase::insert(nPos, str, nStart, n); }
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+ size_t from, len;
+ str.PosLenToImpl(nStart, n, &from, &len);
+ m_impl.insert(PosToImpl(nPos), str.m_impl, from, len);
+
+ return *this;
+ }
+
// insert first n (or all if n == npos) characters of sz
- wxString& insert(size_t nPos, const wxChar *sz)
- { return (wxString&)wxStringBase::insert(nPos, sz); }
- wxString& insert(size_t nPos, const wxChar *sz, size_t n)
- { return (wxString&)wxStringBase::insert(nPos, sz, n); }
+ wxString& insert(size_t nPos, const char *sz)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.insert(PosToImpl(nPos), ImplStr(sz));
+
+ return *this;
+ }
+
+ wxString& insert(size_t nPos, const wchar_t *sz)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.insert(PosToImpl(nPos), ImplStr(sz)); return *this;
+ }
+
+ wxString& insert(size_t nPos, const char *sz, size_t n)
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+ SubstrBufFromMB str(ImplStr(sz, n));
+ m_impl.insert(PosToImpl(nPos), str.data, str.len);
+
+ return *this;
+ }
+
+ wxString& insert(size_t nPos, const wchar_t *sz, size_t n)
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+ SubstrBufFromWC str(ImplStr(sz, n));
+ m_impl.insert(PosToImpl(nPos), str.data, str.len);
+
+ return *this;
+ }
+
// insert n copies of ch
wxString& insert(size_t nPos, size_t n, wxUniChar ch)
- { return (wxString&)wxStringBase::insert(nPos, n, ch); }
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+#if wxUSE_UNICODE_UTF8
+ if ( !ch.IsAscii() )
+ m_impl.insert(PosToImpl(nPos), wxStringOperations::EncodeNChars(n, ch));
+ else
+#endif
+ m_impl.insert(PosToImpl(nPos), n, (wxStringCharType)ch);
+ return *this;
+ }
+
iterator insert(iterator it, wxUniChar ch)
- { return wxStringBase::insert(it, ch); }
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(1);
+
+#if wxUSE_UNICODE_UTF8
+ if ( !ch.IsAscii() )
+ {
+ size_t pos = IterToImplPos(it);
+ m_impl.insert(pos, wxStringOperations::EncodeChar(ch));
+ return iterator(this, m_impl.begin() + pos);
+ }
+ else
+#endif
+ return iterator(this, m_impl.insert(it.impl(), (wxStringCharType)ch));
+ }
+
void insert(iterator it, const_iterator first, const_iterator last)
- { wxStringBase::insert(it, first, last); }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.insert(it.impl(), first.impl(), last.impl());
+ }
+
+#if WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
+ void insert(iterator it, const char *first, const char *last)
+ { insert(it - begin(), first, last - first); }
+ void insert(iterator it, const wchar_t *first, const wchar_t *last)
+ { insert(it - begin(), first, last - first); }
+ void insert(iterator it, const wxCStrData& first, const wxCStrData& last)
+ { insert(it, CreateConstIterator(first), CreateConstIterator(last)); }
+#endif // WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
+
void insert(iterator it, size_type n, wxUniChar ch)
- { wxStringBase::insert(it, n, ch); }
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+#if wxUSE_UNICODE_UTF8
+ if ( !ch.IsAscii() )
+ m_impl.insert(IterToImplPos(it), wxStringOperations::EncodeNChars(n, ch));
+ else
+#endif
+ m_impl.insert(it.impl(), n, (wxStringCharType)ch);
+ }
// delete characters from nStart to nStart + nLen
wxString& erase(size_type pos = 0, size_type n = npos)
- { return (wxString&)wxStringBase::erase(pos, n); }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(pos, n, &from, &len);
+ m_impl.erase(from, len);
+
+ return *this;
+ }
+
+ // delete characters from first up to last
iterator erase(iterator first, iterator last)
- { return wxStringBase::erase(first, last); }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ return iterator(this, m_impl.erase(first.impl(), last.impl()));
+ }
+
iterator erase(iterator first)
- { return wxStringBase::erase(first); }
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(-1);
+
+ return iterator(this, m_impl.erase(first.impl()));
+ }
#ifdef wxSTRING_BASE_HASNT_CLEAR
void clear() { erase(); }
+#else
+ void clear()
+ {
+ wxSTRING_SET_CACHED_LENGTH(0);
+
+ m_impl.clear();
+ }
#endif
// replaces the substring of length nLen starting at nStart
- wxString& replace(size_t nStart, size_t nLen, const wxChar* sz)
- { return (wxString&)wxStringBase::replace(nStart, nLen, sz); }
+ wxString& replace(size_t nStart, size_t nLen, const char* sz)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
+ m_impl.replace(from, len, ImplStr(sz));
+
+ return *this;
+ }
+
+ wxString& replace(size_t nStart, size_t nLen, const wchar_t* sz)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
+ m_impl.replace(from, len, ImplStr(sz));
+
+ return *this;
+ }
+
// replaces the substring of length nLen starting at nStart
wxString& replace(size_t nStart, size_t nLen, const wxString& str)
- { return (wxString&)wxStringBase::replace(nStart, nLen, str); }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
+ m_impl.replace(from, len, str.m_impl);
+
+ return *this;
+ }
+
// replaces the substring with nCount copies of ch
wxString& replace(size_t nStart, size_t nLen, size_t nCount, wxUniChar ch)
- { return (wxString&)wxStringBase::replace(nStart, nLen, nCount, ch); }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
+#if wxUSE_UNICODE_UTF8
+ if ( !ch.IsAscii() )
+ m_impl.replace(from, len, wxStringOperations::EncodeNChars(nCount, ch));
+ else
+#endif
+ m_impl.replace(from, len, nCount, (wxStringCharType)ch);
+
+ return *this;
+ }
+
// replaces a substring with another substring
wxString& replace(size_t nStart, size_t nLen,
const wxString& str, size_t nStart2, size_t nLen2)
- { return (wxString&)wxStringBase::replace(nStart, nLen, str,
- nStart2, nLen2); }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
+
+ size_t from2, len2;
+ str.PosLenToImpl(nStart2, nLen2, &from2, &len2);
+
+ m_impl.replace(from, len, str.m_impl, from2, len2);
+
+ return *this;
+ }
+
// replaces the substring with first nCount chars of sz
wxString& replace(size_t nStart, size_t nLen,
- const wxChar* sz, size_t nCount)
- { return (wxString&)wxStringBase::replace(nStart, nLen, sz, nCount); }
- wxString& replace(iterator first, iterator last, const_pointer s)
- { return (wxString&)wxStringBase::replace(first, last, s); }
- wxString& replace(iterator first, iterator last, const_pointer s,
- size_type n)
- { return (wxString&)wxStringBase::replace(first, last, s, n); }
+ const char* sz, size_t nCount)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
+
+ SubstrBufFromMB str(ImplStr(sz, nCount));
+
+ m_impl.replace(from, len, str.data, str.len);
+
+ return *this;
+ }
+
+ wxString& replace(size_t nStart, size_t nLen,
+ const wchar_t* sz, size_t nCount)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
+
+ SubstrBufFromWC str(ImplStr(sz, nCount));
+
+ m_impl.replace(from, len, str.data, str.len);
+
+ return *this;
+ }
+
+ wxString& replace(size_t nStart, size_t nLen,
+ const wxString& s, size_t nCount)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
+ m_impl.replace(from, len, s.m_impl.c_str(), s.LenToImpl(nCount));
+
+ return *this;
+ }
+
+ wxString& replace(iterator first, iterator last, const char* s)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.replace(first.impl(), last.impl(), ImplStr(s));
+
+ return *this;
+ }
+
+ wxString& replace(iterator first, iterator last, const wchar_t* s)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.replace(first.impl(), last.impl(), ImplStr(s));
+
+ return *this;
+ }
+
+ wxString& replace(iterator first, iterator last, const char* s, size_type n)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ SubstrBufFromMB str(ImplStr(s, n));
+ m_impl.replace(first.impl(), last.impl(), str.data, str.len);
+
+ return *this;
+ }
+
+ wxString& replace(iterator first, iterator last, const wchar_t* s, size_type n)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ SubstrBufFromWC str(ImplStr(s, n));
+ m_impl.replace(first.impl(), last.impl(), str.data, str.len);
+
+ return *this;
+ }
+
wxString& replace(iterator first, iterator last, const wxString& s)
- { return (wxString&)wxStringBase::replace(first, last, s); }
- wxString& replace(iterator first, iterator last, size_type n, wxUniChar c)
- { return (wxString&)wxStringBase::replace(first, last, n, c); }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.replace(first.impl(), last.impl(), s.m_impl);
+
+ return *this;
+ }
+
+ wxString& replace(iterator first, iterator last, size_type n, wxUniChar ch)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+#if wxUSE_UNICODE_UTF8
+ if ( !ch.IsAscii() )
+ m_impl.replace(first.impl(), last.impl(),
+ wxStringOperations::EncodeNChars(n, ch));
+ else
+#endif
+ m_impl.replace(first.impl(), last.impl(), n, (wxStringCharType)ch);
+
+ return *this;
+ }
+
wxString& replace(iterator first, iterator last,
const_iterator first1, const_iterator last1)
- { return (wxString&)wxStringBase::replace(first, last, first1, last1); }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.replace(first.impl(), last.impl(), first1.impl(), last1.impl());
+
+ return *this;
+ }
+
+ wxString& replace(iterator first, iterator last,
+ const char *first1, const char *last1)
+ { replace(first, last, first1, last1 - first1); return *this; }
+ wxString& replace(iterator first, iterator last,
+ const wchar_t *first1, const wchar_t *last1)
+ { replace(first, last, first1, last1 - first1); return *this; }
+
+ // swap two strings
+ void swap(wxString& str)
+ {
+#if wxUSE_STRING_POS_CACHE
+ // we modify not only this string but also the other one directly so we
+ // need to invalidate cache for both of them (we could also try to
+ // exchange their cache entries but it seems unlikely to be worth it)
+ InvalidateCache();
+ str.InvalidateCache();
+#endif // wxUSE_STRING_POS_CACHE
+
+ m_impl.swap(str.m_impl);
+ }
+
+ // find a substring
+ size_t find(const wxString& str, size_t nStart = 0) const
+ { return PosFromImpl(m_impl.find(str.m_impl, PosToImpl(nStart))); }
+
+ // find first n characters of sz
+ size_t find(const char* sz, size_t nStart = 0, size_t n = npos) const
+ {
+ SubstrBufFromMB str(ImplStr(sz, n));
+ return PosFromImpl(m_impl.find(str.data, PosToImpl(nStart), str.len));
+ }
+ size_t find(const wchar_t* sz, size_t nStart = 0, size_t n = npos) const
+ {
+ SubstrBufFromWC str(ImplStr(sz, n));
+ return PosFromImpl(m_impl.find(str.data, PosToImpl(nStart), str.len));
+ }
+ size_t find(const wxScopedCharBuffer& s, size_t nStart = 0, size_t n = npos) const
+ { return find(s.data(), nStart, n); }
+ size_t find(const wxScopedWCharBuffer& s, size_t nStart = 0, size_t n = npos) const
+ { return find(s.data(), nStart, n); }
+ size_t find(const wxCStrData& s, size_t nStart = 0, size_t n = npos) const
+ { return find(s.AsWChar(), nStart, n); }
+
+ // find the first occurrence of character ch after nStart
+ size_t find(wxUniChar ch, size_t nStart = 0) const
+ {
+#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); }
+ size_t find(char ch, size_t nStart = 0) const
+ { return find(wxUniChar(ch), nStart); }
+ size_t find(unsigned char ch, size_t nStart = 0) const
+ { return find(wxUniChar(ch), nStart); }
+ size_t find(wchar_t ch, size_t nStart = 0) const
+ { return find(wxUniChar(ch), nStart); }
+
+ // rfind() family is exactly like find() but works right to left
+
+ // as find, but from the end
+ size_t rfind(const wxString& str, size_t nStart = npos) const
+ { return PosFromImpl(m_impl.rfind(str.m_impl, PosToImpl(nStart))); }
+
+ // as find, but from the end
+ size_t rfind(const char* sz, size_t nStart = npos, size_t n = npos) const
+ {
+ SubstrBufFromMB str(ImplStr(sz, n));
+ return PosFromImpl(m_impl.rfind(str.data, PosToImpl(nStart), str.len));
+ }
+ size_t rfind(const wchar_t* sz, size_t nStart = npos, size_t n = npos) const
+ {
+ SubstrBufFromWC str(ImplStr(sz, n));
+ return PosFromImpl(m_impl.rfind(str.data, PosToImpl(nStart), str.len));
+ }
+ size_t rfind(const wxScopedCharBuffer& s, size_t nStart = npos, size_t n = npos) const
+ { return rfind(s.data(), nStart, n); }
+ size_t rfind(const wxScopedWCharBuffer& s, size_t nStart = npos, size_t n = npos) const
+ { return rfind(s.data(), nStart, n); }
+ size_t rfind(const wxCStrData& s, size_t nStart = npos, size_t n = npos) const
+ { return rfind(s.AsWChar(), nStart, n); }
+ // as find, but from the end
+ size_t rfind(wxUniChar ch, size_t nStart = npos) const
+ {
+#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); }
+ size_t rfind(char ch, size_t nStart = npos) const
+ { return rfind(wxUniChar(ch), nStart); }
+ size_t rfind(unsigned char ch, size_t nStart = npos) const
+ { return rfind(wxUniChar(ch), nStart); }
+ size_t rfind(wchar_t ch, size_t nStart = npos) const
+ { return rfind(wxUniChar(ch), nStart); }
+
+ // find first/last occurrence of any character (not) in the set:
+#if wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
+ // FIXME-UTF8: this is not entirely correct, because it doesn't work if
+ // sizeof(wchar_t)==2 and surrogates are present in the string;
+ // should we care? Probably not.
+ size_t find_first_of(const wxString& str, size_t nStart = 0) const
+ { return m_impl.find_first_of(str.m_impl, nStart); }
+ size_t find_first_of(const char* sz, size_t nStart = 0) const
+ { return m_impl.find_first_of(ImplStr(sz), nStart); }
+ size_t find_first_of(const wchar_t* sz, size_t nStart = 0) const
+ { return m_impl.find_first_of(ImplStr(sz), nStart); }
+ size_t find_first_of(const char* sz, size_t nStart, size_t n) const
+ { return m_impl.find_first_of(ImplStr(sz), nStart, n); }
+ size_t find_first_of(const wchar_t* sz, size_t nStart, size_t n) const
+ { return m_impl.find_first_of(ImplStr(sz), nStart, n); }
+ size_t find_first_of(wxUniChar c, size_t nStart = 0) const
+ { return m_impl.find_first_of((wxChar)c, nStart); }
+
+ size_t find_last_of(const wxString& str, size_t nStart = npos) const
+ { return m_impl.find_last_of(str.m_impl, nStart); }
+ size_t find_last_of(const char* sz, size_t nStart = npos) const
+ { return m_impl.find_last_of(ImplStr(sz), nStart); }
+ size_t find_last_of(const wchar_t* sz, size_t nStart = npos) const
+ { return m_impl.find_last_of(ImplStr(sz), nStart); }
+ size_t find_last_of(const char* sz, size_t nStart, size_t n) const
+ { return m_impl.find_last_of(ImplStr(sz), nStart, n); }
+ size_t find_last_of(const wchar_t* sz, size_t nStart, size_t n) const
+ { return m_impl.find_last_of(ImplStr(sz), nStart, n); }
+ size_t find_last_of(wxUniChar c, size_t nStart = npos) const
+ { return m_impl.find_last_of((wxChar)c, nStart); }
+
+ size_t find_first_not_of(const wxString& str, size_t nStart = 0) const
+ { return m_impl.find_first_not_of(str.m_impl, nStart); }
+ size_t find_first_not_of(const char* sz, size_t nStart = 0) const
+ { return m_impl.find_first_not_of(ImplStr(sz), nStart); }
+ size_t find_first_not_of(const wchar_t* sz, size_t nStart = 0) const
+ { return m_impl.find_first_not_of(ImplStr(sz), nStart); }
+ size_t find_first_not_of(const char* sz, size_t nStart, size_t n) const
+ { return m_impl.find_first_not_of(ImplStr(sz), nStart, n); }
+ size_t find_first_not_of(const wchar_t* sz, size_t nStart, size_t n) const
+ { return m_impl.find_first_not_of(ImplStr(sz), nStart, n); }
+ size_t find_first_not_of(wxUniChar c, size_t nStart = 0) const
+ { return m_impl.find_first_not_of((wxChar)c, nStart); }
+
+ size_t find_last_not_of(const wxString& str, size_t nStart = npos) const
+ { return m_impl.find_last_not_of(str.m_impl, nStart); }
+ size_t find_last_not_of(const char* sz, size_t nStart = npos) const
+ { return m_impl.find_last_not_of(ImplStr(sz), nStart); }
+ size_t find_last_not_of(const wchar_t* sz, size_t nStart = npos) const
+ { return m_impl.find_last_not_of(ImplStr(sz), nStart); }
+ size_t find_last_not_of(const char* sz, size_t nStart, size_t n) const
+ { return m_impl.find_last_not_of(ImplStr(sz), nStart, n); }
+ size_t find_last_not_of(const wchar_t* sz, size_t nStart, size_t n) const
+ { return m_impl.find_last_not_of(ImplStr(sz), nStart, n); }
+ size_t find_last_not_of(wxUniChar c, size_t nStart = npos) const
+ { return m_impl.find_last_not_of((wxChar)c, nStart); }
+#else
+ // we can't use std::string implementation in UTF-8 build, because the
+ // character sets would be interpreted wrongly:
+
+ // as strpbrk() but starts at nStart, returns npos if not found
+ size_t find_first_of(const wxString& str, size_t nStart = 0) const
+#if wxUSE_UNICODE // FIXME-UTF8: temporary
+ { return find_first_of(str.wc_str(), nStart); }
+#else
+ { return find_first_of(str.mb_str(), nStart); }
+#endif
+ // same as above
+ size_t find_first_of(const char* sz, size_t nStart = 0) const;
+ size_t find_first_of(const wchar_t* sz, size_t nStart = 0) const;
+ size_t find_first_of(const char* sz, size_t nStart, size_t n) const;
+ size_t find_first_of(const wchar_t* sz, size_t nStart, size_t n) const;
+ // same as find(char, size_t)
+ size_t find_first_of(wxUniChar c, size_t nStart = 0) const
+ { return find(c, nStart); }
+ // find the last (starting from nStart) char from str in this string
+ size_t find_last_of (const wxString& str, size_t nStart = npos) const
+#if wxUSE_UNICODE // FIXME-UTF8: temporary
+ { return find_last_of(str.wc_str(), nStart); }
+#else
+ { return find_last_of(str.mb_str(), nStart); }
+#endif
+ // same as above
+ size_t find_last_of (const char* sz, size_t nStart = npos) const;
+ size_t find_last_of (const wchar_t* sz, size_t nStart = npos) const;
+ size_t find_last_of(const char* sz, size_t nStart, size_t n) const;
+ size_t find_last_of(const wchar_t* sz, size_t nStart, size_t n) const;
+ // same as above
+ size_t find_last_of(wxUniChar c, size_t nStart = npos) const
+ { return rfind(c, nStart); }
+
+ // find first/last occurrence of any character not in the set
+
+ // as strspn() (starting from nStart), returns npos on failure
+ size_t find_first_not_of(const wxString& str, size_t nStart = 0) const
+#if wxUSE_UNICODE // FIXME-UTF8: temporary
+ { return find_first_not_of(str.wc_str(), nStart); }
+#else
+ { return find_first_not_of(str.mb_str(), nStart); }
+#endif
+ // same as above
+ size_t find_first_not_of(const char* sz, size_t nStart = 0) const;
+ size_t find_first_not_of(const wchar_t* sz, size_t nStart = 0) const;
+ size_t find_first_not_of(const char* sz, size_t nStart, size_t n) const;
+ size_t find_first_not_of(const wchar_t* sz, size_t nStart, size_t n) const;
+ // same as above
+ size_t find_first_not_of(wxUniChar ch, size_t nStart = 0) const;
+ // as strcspn()
+ size_t find_last_not_of(const wxString& str, size_t nStart = npos) const
+#if wxUSE_UNICODE // FIXME-UTF8: temporary
+ { return find_last_not_of(str.wc_str(), nStart); }
+#else
+ { return find_last_not_of(str.mb_str(), nStart); }
+#endif
+ // same as above
+ size_t find_last_not_of(const char* sz, size_t nStart = npos) const;
+ size_t find_last_not_of(const wchar_t* sz, size_t nStart = npos) const;
+ size_t find_last_not_of(const char* sz, size_t nStart, size_t n) const;
+ size_t find_last_not_of(const wchar_t* sz, size_t nStart, size_t n) const;
+ // same as above
+ size_t find_last_not_of(wxUniChar ch, size_t nStart = npos) const;
+#endif // wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8 or not
+
+ // provide char/wchar_t/wxUniCharRef overloads for char-finding functions
+ // above to resolve ambiguities:
+ size_t find_first_of(wxUniCharRef ch, size_t nStart = 0) const
+ { return find_first_of(wxUniChar(ch), nStart); }
+ size_t find_first_of(char ch, size_t nStart = 0) const
+ { return find_first_of(wxUniChar(ch), nStart); }
+ size_t find_first_of(unsigned char ch, size_t nStart = 0) const
+ { return find_first_of(wxUniChar(ch), nStart); }
+ size_t find_first_of(wchar_t ch, size_t nStart = 0) const
+ { return find_first_of(wxUniChar(ch), nStart); }
+ size_t find_last_of(wxUniCharRef ch, size_t nStart = npos) const
+ { return find_last_of(wxUniChar(ch), nStart); }
+ size_t find_last_of(char ch, size_t nStart = npos) const
+ { return find_last_of(wxUniChar(ch), nStart); }
+ size_t find_last_of(unsigned char ch, size_t nStart = npos) const
+ { return find_last_of(wxUniChar(ch), nStart); }
+ size_t find_last_of(wchar_t ch, size_t nStart = npos) const
+ { return find_last_of(wxUniChar(ch), nStart); }
+ size_t find_first_not_of(wxUniCharRef ch, size_t nStart = 0) const
+ { return find_first_not_of(wxUniChar(ch), nStart); }
+ size_t find_first_not_of(char ch, size_t nStart = 0) const
+ { return find_first_not_of(wxUniChar(ch), nStart); }
+ size_t find_first_not_of(unsigned char ch, size_t nStart = 0) const
+ { return find_first_not_of(wxUniChar(ch), nStart); }
+ size_t find_first_not_of(wchar_t ch, size_t nStart = 0) const
+ { return find_first_not_of(wxUniChar(ch), nStart); }
+ size_t find_last_not_of(wxUniCharRef ch, size_t nStart = npos) const
+ { return find_last_not_of(wxUniChar(ch), nStart); }
+ size_t find_last_not_of(char ch, size_t nStart = npos) const
+ { return find_last_not_of(wxUniChar(ch), nStart); }
+ size_t find_last_not_of(unsigned char ch, size_t nStart = npos) const
+ { return find_last_not_of(wxUniChar(ch), nStart); }
+ size_t find_last_not_of(wchar_t ch, size_t nStart = npos) const
+ { return find_last_not_of(wxUniChar(ch), nStart); }
+
+ // and additional overloads for the versions taking strings:
+ size_t find_first_of(const wxCStrData& sz, size_t nStart = 0) const
+ { return find_first_of(sz.AsString(), nStart); }
+ size_t find_first_of(const wxScopedCharBuffer& sz, size_t nStart = 0) const
+ { return find_first_of(sz.data(), nStart); }
+ size_t find_first_of(const wxScopedWCharBuffer& sz, size_t nStart = 0) const
+ { return find_first_of(sz.data(), nStart); }
+ size_t find_first_of(const wxCStrData& sz, size_t nStart, size_t n) const
+ { return find_first_of(sz.AsWChar(), nStart, n); }
+ size_t find_first_of(const wxScopedCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_first_of(sz.data(), nStart, n); }
+ size_t find_first_of(const wxScopedWCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_first_of(sz.data(), nStart, n); }
+
+ size_t find_last_of(const wxCStrData& sz, size_t nStart = 0) const
+ { return find_last_of(sz.AsString(), nStart); }
+ size_t find_last_of(const wxScopedCharBuffer& sz, size_t nStart = 0) const
+ { return find_last_of(sz.data(), nStart); }
+ size_t find_last_of(const wxScopedWCharBuffer& sz, size_t nStart = 0) const
+ { return find_last_of(sz.data(), nStart); }
+ size_t find_last_of(const wxCStrData& sz, size_t nStart, size_t n) const
+ { return find_last_of(sz.AsWChar(), nStart, n); }
+ size_t find_last_of(const wxScopedCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_last_of(sz.data(), nStart, n); }
+ size_t find_last_of(const wxScopedWCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_last_of(sz.data(), nStart, n); }
+
+ size_t find_first_not_of(const wxCStrData& sz, size_t nStart = 0) const
+ { return find_first_not_of(sz.AsString(), nStart); }
+ size_t find_first_not_of(const wxScopedCharBuffer& sz, size_t nStart = 0) const
+ { return find_first_not_of(sz.data(), nStart); }
+ size_t find_first_not_of(const wxScopedWCharBuffer& sz, size_t nStart = 0) const
+ { return find_first_not_of(sz.data(), nStart); }
+ size_t find_first_not_of(const wxCStrData& sz, size_t nStart, size_t n) const
+ { return find_first_not_of(sz.AsWChar(), nStart, n); }
+ size_t find_first_not_of(const wxScopedCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_first_not_of(sz.data(), nStart, n); }
+ size_t find_first_not_of(const wxScopedWCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_first_not_of(sz.data(), nStart, n); }
+
+ size_t find_last_not_of(const wxCStrData& sz, size_t nStart = 0) const
+ { return find_last_not_of(sz.AsString(), nStart); }
+ size_t find_last_not_of(const wxScopedCharBuffer& sz, size_t nStart = 0) const
+ { return find_last_not_of(sz.data(), nStart); }
+ size_t find_last_not_of(const wxScopedWCharBuffer& sz, size_t nStart = 0) const
+ { return find_last_not_of(sz.data(), nStart); }
+ size_t find_last_not_of(const wxCStrData& sz, size_t nStart, size_t n) const
+ { return find_last_not_of(sz.AsWChar(), nStart, n); }
+ size_t find_last_not_of(const wxScopedCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_last_not_of(sz.data(), nStart, n); }
+ size_t find_last_not_of(const wxScopedWCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_last_not_of(sz.data(), nStart, n); }
// string += string
wxString& operator+=(const wxString& s)
- { return (wxString&)wxStringBase::operator+=(s); }
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl += s.m_impl;
+ return *this;
+ }
// string += C string
- wxString& operator+=(const wxChar *psz)
- { return (wxString&)wxStringBase::operator+=(psz); }
+ wxString& operator+=(const char *psz)
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl += ImplStr(psz);
+ return *this;
+ }
+ wxString& operator+=(const wchar_t *pwz)
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl += ImplStr(pwz);
+ return *this;
+ }
wxString& operator+=(const wxCStrData& s)
- { return (wxString&)wxStringBase::operator+=(s.AsString()); }
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl += s.AsString().m_impl;
+ return *this;
+ }
+ wxString& operator+=(const wxScopedCharBuffer& s)
+ { return append(s); }
+ wxString& operator+=(const wxScopedWCharBuffer& s)
+ { return append(s); }
// string += char
wxString& operator+=(wxUniChar ch)
- { return (wxString&)wxStringBase::operator+=(ch); }
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(1);
+
+#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); }
wxString& operator+=(unsigned char ch) { return *this += wxUniChar(ch); }
wxString& operator+=(wchar_t ch) { return *this += wxUniChar(ch); }
private:
#if !wxUSE_STL_BASED_WXSTRING
// helpers for wxStringBuffer and wxStringBufferLength
- wxChar *DoGetWriteBuf(size_t nLen);
- void DoUngetWriteBuf();
- void DoUngetWriteBuf(size_t nLen);
+ wxStringCharType *DoGetWriteBuf(size_t nLen)
+ {
+ return m_impl.DoGetWriteBuf(nLen);
+ }
- friend class WXDLLIMPEXP_BASE wxStringBuffer;
- friend class WXDLLIMPEXP_BASE wxStringBufferLength;
-#endif
+ void DoUngetWriteBuf()
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.DoUngetWriteBuf();
+ }
+
+ void DoUngetWriteBuf(size_t nLen)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.DoUngetWriteBuf(nLen);
+ }
+#endif // !wxUSE_STL_BASED_WXSTRING
#ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN
- int DoPrintf(const wxChar *format, ...) ATTRIBUTE_PRINTF_2;
- static wxString DoFormat(const wxChar *format, ...) ATTRIBUTE_PRINTF_1;
+ #if !wxUSE_UTF8_LOCALE_ONLY
+ int DoPrintfWchar(const wxChar *format, ...);
+ static wxString DoFormatWchar(const wxChar *format, ...);
+ #endif
+ #if wxUSE_UNICODE_UTF8
+ int DoPrintfUtf8(const char *format, ...);
+ static wxString DoFormatUtf8(const char *format, ...);
+ #endif
+#endif
+
+#if !wxUSE_STL_BASED_WXSTRING
+ // check string's data validity
+ bool IsValid() const { return m_impl.GetStringData()->IsValid(); }
#endif
+
+private:
+ wxStringImpl m_impl;
+
+ // buffers for compatibility conversion from (char*)c_str() and
+ // (wchar_t*)c_str(): the pointers returned by these functions should remain
+ // valid until the string itself is modified for compatibility with the
+ // existing code and consistency with std::string::c_str() so returning a
+ // temporary buffer won't do and we need to cache the conversion results
+
+ // TODO-UTF8: benchmark various approaches to keeping compatibility buffers
+ template<typename T>
+ struct ConvertedBuffer
+ {
+ // notice that there is no need to initialize m_len here as it's unused
+ // as long as m_str is NULL
+ ConvertedBuffer() : m_str(NULL) {}
+ ~ConvertedBuffer()
+ { free(m_str); }
+
+ bool Extend(size_t len)
+ {
+ // add extra 1 for the trailing NUL
+ void * const str = realloc(m_str, sizeof(T)*(len + 1));
+ if ( !str )
+ return false;
+
+ m_str = static_cast<T *>(str);
+ m_len = len;
+
+ return true;
+ }
+
+ const wxScopedCharTypeBuffer<T> AsScopedBuffer() const
+ {
+ return wxScopedCharTypeBuffer<T>::CreateNonOwned(m_str, m_len);
+ }
+
+ T *m_str; // pointer to the string data
+ size_t m_len; // length, not size, i.e. in chars and without last NUL
+ };
+
+
+#if wxUSE_UNICODE
+ // common mb_str() and wxCStrData::AsChar() helper: performs the conversion
+ // and returns either m_convertedToChar.m_str (in which case its m_len is
+ // also updated) or NULL if it failed
+ //
+ // there is an important exception: in wxUSE_UNICODE_UTF8 build if conv is a
+ // UTF-8 one, we return m_impl.c_str() directly, without doing any conversion
+ // as optimization and so the caller needs to check for this before using
+ // m_convertedToChar
+ //
+ // NB: AsChar() returns char* in any build, unlike mb_str()
+ const char *AsChar(const wxMBConv& conv) const;
+
+ // mb_str() implementation helper
+ wxScopedCharBuffer AsCharBuf(const wxMBConv& conv) const
+ {
+#if wxUSE_UNICODE_UTF8
+ // avoid conversion if we can
+ if ( conv.IsUTF8() )
+ {
+ return wxScopedCharBuffer::CreateNonOwned(m_impl.c_str(),
+ m_impl.length());
+ }
+#endif // wxUSE_UNICODE_UTF8
+
+ // call this solely in order to fill in m_convertedToChar as AsChar()
+ // updates it as a side effect: this is a bit ugly but it's a completely
+ // internal function so the users of this class shouldn't care or know
+ // about it and doing it like this, i.e. having a separate AsChar(),
+ // allows us to avoid the creation and destruction of a temporary buffer
+ // when using wxCStrData without duplicating any code
+ if ( !AsChar(conv) )
+ {
+ // although it would be probably more correct to return NULL buffer
+ // from here if the conversion fails, a lot of existing code doesn't
+ // expect mb_str() (or wc_str()) to ever return NULL so return an
+ // empty string otherwise to avoid crashes in it
+ //
+ // also, some existing code does check for the conversion success and
+ // so asserting here would be bad too -- even if it does mean that
+ // silently losing data is possible for badly written code
+ return wxScopedCharBuffer::CreateNonOwned("", 0);
+ }
+
+ return m_convertedToChar.AsScopedBuffer();
+ }
+
+ ConvertedBuffer<char> m_convertedToChar;
+#endif // !wxUSE_UNICODE
+
+#if !wxUSE_UNICODE_WCHAR
+ // common wc_str() and wxCStrData::AsWChar() helper for both UTF-8 and ANSI
+ // builds: converts the string contents into m_convertedToWChar and returns
+ // NULL if the conversion failed (this can only happen in ANSI build)
+ //
+ // NB: AsWChar() returns wchar_t* in any build, unlike wc_str()
+ const wchar_t *AsWChar(const wxMBConv& conv) const;
+
+ // wc_str() implementation helper
+ wxScopedWCharBuffer AsWCharBuf(const wxMBConv& conv) const
+ {
+ if ( !AsWChar(conv) )
+ return wxScopedWCharBuffer::CreateNonOwned(L"", 0);
+
+ return m_convertedToWChar.AsScopedBuffer();
+ }
+
+ ConvertedBuffer<wchar_t> m_convertedToWChar;
+#endif // !wxUSE_UNICODE_WCHAR
+
+#if wxUSE_UNICODE_UTF8
+ // FIXME-UTF8: (try to) move this elsewhere (TLS) or solve differently
+ // assigning to character pointer to by wxString::iterator 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
+ wxDECLARE_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
- #pragma warning (default:4275)
+ #pragma warning (pop)
#endif
+// string iterator operators that satisfy STL Random Access Iterator
+// requirements:
+inline wxString::iterator operator+(ptrdiff_t n, wxString::iterator i)
+ { return i + n; }
+inline wxString::const_iterator operator+(ptrdiff_t n, wxString::const_iterator i)
+ { return i + n; }
+inline wxString::reverse_iterator operator+(ptrdiff_t n, wxString::reverse_iterator i)
+ { return i + n; }
+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
// enough, from the point of view of C++ standard we must have the declarations
// here as friend ones are not injected in the enclosing namespace and without
// them the code fails to compile with conforming compilers such as xlC or g++4
wxString WXDLLIMPEXP_BASE operator+(const wxString& string1, const wxString& string2);
-wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wxChar *psz);
-wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, const wxString& string);
+wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const char *psz);
+wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wchar_t *pwz);
+wxString WXDLLIMPEXP_BASE operator+(const char *psz, const wxString& string);
+wxString WXDLLIMPEXP_BASE operator+(const wchar_t *pwz, const wxString& string);
wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxUniChar ch);
wxString WXDLLIMPEXP_BASE operator+(wxUniChar 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<char>
+{
+ static wxScopedCharBuffer Get(const wxString& s, size_t *len)
{
- return *(wxString *)&wxEmptyString;
+ wxScopedCharBuffer 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<wchar_t>
+{
+ static wxScopedWCharBuffer Get(const wxString& s, size_t *len)
+ {
+ const size_t length = s.length();
+ if ( len )
+ *len = length;
+ return wxScopedWCharBuffer::CreateNonOwned(s.wx_str(), length);
+ }
+};
+
+#elif wxUSE_UNICODE_UTF8
+
+template <>
+struct wxStringAsBufHelper<char>
+{
+ static wxScopedCharBuffer Get(const wxString& s, size_t *len)
+ {
+ const size_t length = s.utf8_length();
+ if ( len )
+ *len = length;
+ return wxScopedCharBuffer::CreateNonOwned(s.wx_str(), length);
+ }
+};
+
+template <>
+struct wxStringAsBufHelper<wchar_t>
+{
+ static wxScopedWCharBuffer Get(const wxString& s, size_t *len)
+ {
+ wxScopedWCharBuffer 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
// ----------------------------------------------------------------------------
-#if wxUSE_STL_BASED_WXSTRING
-
-class WXDLLIMPEXP_BASE wxStringBuffer
+#if !wxUSE_STL_BASED_WXSTRING
+// string buffer for direct access to string data in their native
+// representation:
+class wxStringInternalBuffer
{
public:
- wxStringBuffer(wxString& str, size_t lenWanted = 1024)
- : m_str(str), m_buf(lenWanted)
- { }
+ typedef wxStringCharType CharType;
+
+ wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024)
+ : m_str(str), m_buf(NULL)
+ { m_buf = m_str.DoGetWriteBuf(lenWanted); }
- ~wxStringBuffer() { m_str.assign(m_buf.data(), wxStrlen(m_buf.data())); }
+ ~wxStringInternalBuffer() { m_str.DoUngetWriteBuf(); }
- operator wxChar*() { return m_buf.data(); }
+ operator wxStringCharType*() const { return m_buf; }
private:
- wxString& m_str;
-#if wxUSE_UNICODE
- wxWCharBuffer m_buf;
-#else
- wxCharBuffer m_buf;
-#endif
+ wxString& m_str;
+ wxStringCharType *m_buf;
- DECLARE_NO_COPY_CLASS(wxStringBuffer)
+ wxDECLARE_NO_COPY_CLASS(wxStringInternalBuffer);
};
-class WXDLLIMPEXP_BASE wxStringBufferLength
+class wxStringInternalBufferLength
{
public:
- wxStringBufferLength(wxString& str, size_t lenWanted = 1024)
- : m_str(str), m_buf(lenWanted), m_len(0), m_lenSet(false)
- { }
+ typedef wxStringCharType CharType;
+
+ 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);
+ }
- ~wxStringBufferLength()
+ ~wxStringInternalBufferLength()
{
wxASSERT(m_lenSet);
- m_str.assign(m_buf.data(), m_len);
+ m_str.DoUngetWriteBuf(m_len);
}
- operator wxChar*() { return m_buf.data(); }
+ operator wxStringCharType*() const { return m_buf; }
void SetLength(size_t length) { m_len = length; m_lenSet = true; }
private:
- wxString& m_str;
-#if wxUSE_UNICODE
- wxWCharBuffer m_buf;
-#else
- wxCharBuffer m_buf;
-#endif
- size_t m_len;
- bool m_lenSet;
+ wxString& m_str;
+ wxStringCharType *m_buf;
+ size_t m_len;
+ bool m_lenSet;
- DECLARE_NO_COPY_CLASS(wxStringBufferLength)
+ wxDECLARE_NO_COPY_CLASS(wxStringInternalBufferLength);
};
-#else // if !wxUSE_STL_BASED_WXSTRING
+#endif // !wxUSE_STL_BASED_WXSTRING
-class WXDLLIMPEXP_BASE wxStringBuffer
+template<typename T>
+class wxStringTypeBufferBase
{
public:
- wxStringBuffer(wxString& str, size_t lenWanted = 1024)
- : m_str(str), m_buf(NULL)
- { m_buf = m_str.DoGetWriteBuf(lenWanted); }
+ typedef T CharType;
- ~wxStringBuffer() { m_str.DoUngetWriteBuf(); }
+ 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<CharType>
+ size_t len;
+ const wxCharTypeBuffer<CharType> 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 wxChar*() const { return m_buf; }
+ operator CharType*() { return m_buf.data(); }
-private:
+protected:
wxString& m_str;
- wxChar *m_buf;
+ wxCharTypeBuffer<CharType> m_buf;
+};
+
+template<typename T>
+class wxStringTypeBufferLengthBase : public wxStringTypeBufferBase<T>
+{
+public:
+ wxStringTypeBufferLengthBase(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferBase<T>(str, lenWanted),
+ m_len(0),
+ m_lenSet(false)
+ { }
+
+ ~wxStringTypeBufferLengthBase()
+ {
+ wxASSERT_MSG( this->m_lenSet, "forgot to call SetLength()" );
+ }
- DECLARE_NO_COPY_CLASS(wxStringBuffer)
+ void SetLength(size_t length) { m_len = length; m_lenSet = true; }
+
+protected:
+ size_t m_len;
+ bool m_lenSet;
};
-class WXDLLIMPEXP_BASE wxStringBufferLength
+template<typename T>
+class wxStringTypeBuffer : public wxStringTypeBufferBase<T>
{
public:
- wxStringBufferLength(wxString& str, size_t lenWanted = 1024)
- : m_str(str), m_buf(NULL), m_len(0), m_lenSet(false)
+ wxStringTypeBuffer(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferBase<T>(str, lenWanted)
+ { }
+
+ ~wxStringTypeBuffer()
{
- m_buf = m_str.DoGetWriteBuf(lenWanted);
- wxASSERT(m_buf != NULL);
+ this->m_str.assign(this->m_buf.data());
}
- ~wxStringBufferLength()
+ wxDECLARE_NO_COPY_CLASS(wxStringTypeBuffer);
+};
+
+template<typename T>
+class wxStringTypeBufferLength : public wxStringTypeBufferLengthBase<T>
+{
+public:
+ wxStringTypeBufferLength(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferLengthBase<T>(str, lenWanted)
+ { }
+
+ ~wxStringTypeBufferLength()
{
- wxASSERT(m_lenSet);
- m_str.DoUngetWriteBuf(m_len);
+ this->m_str.assign(this->m_buf.data(), this->m_len);
}
- operator wxChar*() const { return m_buf; }
- void SetLength(size_t length) { m_len = length; m_lenSet = true; }
+ wxDECLARE_NO_COPY_CLASS(wxStringTypeBufferLength);
+};
-private:
- wxString& m_str;
- wxChar *m_buf;
- size_t m_len;
- bool m_lenSet;
+#if wxUSE_STL_BASED_WXSTRING
+
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferBase<wxStringCharType> )
+
+class wxStringInternalBuffer : public wxStringTypeBufferBase<wxStringCharType>
+{
+public:
+ wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferBase<wxStringCharType>(str, lenWanted) {}
+ ~wxStringInternalBuffer()
+ { m_str.m_impl.assign(m_buf.data()); }
- DECLARE_NO_COPY_CLASS(wxStringBufferLength)
+ wxDECLARE_NO_COPY_CLASS(wxStringInternalBuffer);
};
-#endif // !wxUSE_STL_BASED_WXSTRING
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE(
+ wxStringTypeBufferLengthBase<wxStringCharType> )
+
+class wxStringInternalBufferLength
+ : public wxStringTypeBufferLengthBase<wxStringCharType>
+{
+public:
+ wxStringInternalBufferLength(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferLengthBase<wxStringCharType>(str, lenWanted) {}
+
+ ~wxStringInternalBufferLength()
+ {
+ m_str.m_impl.assign(m_buf.data(), m_len);
+ }
+
+ wxDECLARE_NO_COPY_CLASS(wxStringInternalBufferLength);
+};
+
+#endif // wxUSE_STL_BASED_WXSTRING
+
+
+#if wxUSE_STL_BASED_WXSTRING || wxUSE_UNICODE_UTF8
+typedef wxStringTypeBuffer<wxChar> wxStringBuffer;
+typedef wxStringTypeBufferLength<wxChar> wxStringBufferLength;
+#else // if !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
+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<char> )
+
+// Note about inlined dtors in the classes below: this is done not for
+// performance reasons but just to avoid linking errors in the MSVC DLL build
+// under Windows: if a class has non-inline methods it must be declared as
+// being DLL-exported but, due to an extremely interesting feature of MSVC 7
+// and later, any template class which is used as a base of a DLL-exported
+// class is implicitly made DLL-exported too, as explained at the bottom of
+// http://msdn.microsoft.com/en-us/library/twa2aw10.aspx (just to confirm: yes,
+// _inheriting_ from a class can change whether it is being exported from DLL)
+//
+// But this results in link errors because the base template class is not DLL-
+// exported, whether it is declared with WXDLLIMPEXP_BASE or not, because it
+// does have only inline functions. So the simplest fix is to just make all the
+// functions of these classes inline too.
+
+class wxUTF8StringBuffer : public wxStringTypeBufferBase<char>
+{
+public:
+ wxUTF8StringBuffer(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferBase<char>(str, lenWanted) {}
+ ~wxUTF8StringBuffer()
+ {
+ wxMBConvStrictUTF8 conv;
+ size_t wlen = conv.ToWChar(NULL, 0, m_buf);
+ wxCHECK_RET( wlen != wxCONV_FAILED, "invalid UTF-8 data in string buffer?" );
+
+ wxStringInternalBuffer wbuf(m_str, wlen);
+ conv.ToWChar(wbuf, wlen, m_buf);
+ }
+
+ wxDECLARE_NO_COPY_CLASS(wxUTF8StringBuffer);
+};
+
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferLengthBase<char> )
+
+class wxUTF8StringBufferLength : public wxStringTypeBufferLengthBase<char>
+{
+public:
+ wxUTF8StringBufferLength(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferLengthBase<char>(str, lenWanted) {}
+ ~wxUTF8StringBufferLength()
+ {
+ wxCHECK_RET(m_lenSet, "length not set");
+
+ wxMBConvStrictUTF8 conv;
+ size_t wlen = conv.ToWChar(NULL, 0, m_buf, m_len);
+ wxCHECK_RET( wlen != wxCONV_FAILED, "invalid UTF-8 data in string buffer?" );
+
+ wxStringInternalBufferLength wbuf(m_str, wlen);
+ conv.ToWChar(wbuf, wlen, m_buf, m_len);
+ wbuf.SetLength(wlen);
+ }
+
+ wxDECLARE_NO_COPY_CLASS(wxUTF8StringBufferLength);
+};
+#endif // wxUSE_UNICODE_UTF8/wxUSE_UNICODE_WCHAR
+
// ---------------------------------------------------------------------------
// wxString comparison functions: operator versions are always case sensitive
// ---------------------------------------------------------------------------
-// note that when wxUSE_STL_BASED_WXSTRING == 1 the comparison operators taking
-// std::string are used and defining them also for wxString would only result
-// in compilation ambiguities when comparing std::string and wxString
-#if !wxUSE_STL_BASED_WXSTRING
-
-#define wxCMP_WXCHAR_STRING(p, s, op) s.Cmp(p) op 0
+#define wxCMP_WXCHAR_STRING(p, s, op) 0 op s.Cmp(p)
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)
inline bool operator>=(const wxString& s1, const wxString& s2)
{ return s1.Cmp(s2) >= 0; }
-#if wxUSE_UNICODE
-inline bool operator==(const wxString& s1, const wxWCharBuffer& 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 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 wxScopedWCharBuffer& s2)
{ return (s1.Cmp((const wchar_t *)s2) == 0); }
-inline bool operator==(const wxWCharBuffer& s1, const wxString& s2)
+inline bool operator==(const wxScopedWCharBuffer& s1, const wxString& s2)
{ return (s2.Cmp((const wchar_t *)s1) == 0); }
-inline bool operator!=(const wxString& s1, const wxWCharBuffer& s2)
+inline bool operator!=(const wxString& s1, const wxScopedWCharBuffer& s2)
{ return (s1.Cmp((const wchar_t *)s2) != 0); }
-inline bool operator!=(const wxWCharBuffer& s1, const wxString& s2)
+inline bool operator!=(const wxScopedWCharBuffer& s1, const wxString& s2)
{ return (s2.Cmp((const wchar_t *)s1) != 0); }
-#else // !wxUSE_UNICODE
-inline bool operator==(const wxString& s1, const wxCharBuffer& s2)
+
+inline bool operator==(const wxString& s1, const wxScopedCharBuffer& s2)
{ return (s1.Cmp((const char *)s2) == 0); }
-inline bool operator==(const wxCharBuffer& s1, const wxString& s2)
+inline bool operator==(const wxScopedCharBuffer& s1, const wxString& s2)
{ return (s2.Cmp((const char *)s1) == 0); }
-inline bool operator!=(const wxString& s1, const wxCharBuffer& s2)
+inline bool operator!=(const wxString& s1, const wxScopedCharBuffer& s2)
{ return (s1.Cmp((const char *)s2) != 0); }
-inline bool operator!=(const wxCharBuffer& s1, const wxString& s2)
+inline bool operator!=(const wxScopedCharBuffer& 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)
+inline wxString operator+(const wxString& string, const wxScopedWCharBuffer& buf)
{ return string + (const wchar_t *)buf; }
-inline wxString operator+(const wxWCharBuffer& buf, const wxString& string)
+inline wxString operator+(const wxScopedWCharBuffer& buf, const wxString& string)
{ return (const wchar_t *)buf + string; }
-#else // !wxUSE_UNICODE
-inline wxString operator+(const wxString& string, const wxCharBuffer& buf)
+
+inline wxString operator+(const wxString& string, const wxScopedCharBuffer& buf)
{ return string + (const char *)buf; }
-inline wxString operator+(const wxCharBuffer& buf, const wxString& string)
+inline wxString operator+(const wxScopedCharBuffer& buf, const wxString& string)
{ return (const char *)buf + string; }
-#endif // wxUSE_UNICODE/!wxUSE_UNICODE
-
-#endif // !wxUSE_STL_BASED_WXSTRING
-// comparison with char (those are not defined by std::[w]string and so should
-// be always available)
+// comparison with char
inline bool operator==(const wxUniChar& c, const wxString& s) { return s.IsSameAs(c); }
inline bool operator==(const wxUniCharRef& c, const wxString& s) { return s.IsSameAs(c); }
inline bool operator==(char c, const wxString& s) { return s.IsSameAs(c); }
inline bool operator!=(const wxString& s, char c) { return !s.IsSameAs(c); }
inline bool operator!=(const wxString& s, wchar_t c) { return !s.IsSameAs(c); }
+
+// wxString iterators comparisons
+inline bool wxString::iterator::operator==(const const_iterator& i) const
+ { return i == *this; }
+inline bool wxString::iterator::operator!=(const const_iterator& i) const
+ { return i != *this; }
+inline bool wxString::iterator::operator<(const const_iterator& i) const
+ { return i > *this; }
+inline bool wxString::iterator::operator>(const const_iterator& i) const
+ { return i < *this; }
+inline bool wxString::iterator::operator<=(const const_iterator& i) const
+ { return i >= *this; }
+inline bool wxString::iterator::operator>=(const const_iterator& i) const
+ { return i <= *this; }
+
// comparison with C string in Unicode build
#if wxUSE_UNICODE
#define wxCMP_CHAR_CSTRDATA(p, s, op) p op s.AsChar()
#define wxCMP_WCHAR_CSTRDATA(p, s, op) p op s.AsWChar()
-// FIXME: these ifdefs must be removed when wxCStrData has both conversions
-#if wxUSE_UNICODE
- wxDEFINE_ALL_COMPARISONS(const wchar_t *, const wxCStrData&, wxCMP_WCHAR_CSTRDATA)
-#else
- wxDEFINE_ALL_COMPARISONS(const char *, const wxCStrData&, wxCMP_CHAR_CSTRDATA)
-#endif
+wxDEFINE_ALL_COMPARISONS(const wchar_t *, const wxCStrData&, wxCMP_WCHAR_CSTRDATA)
+wxDEFINE_ALL_COMPARISONS(const char *, const wxCStrData&, wxCMP_CHAR_CSTRDATA)
#undef wxCMP_CHAR_CSTRDATA
#undef wxCMP_WCHAR_CSTRDATA
WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxString&);
WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxCStrData&);
+WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxScopedCharBuffer&);
+#ifndef __BORLANDC__
+WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxScopedWCharBuffer&);
+#endif
+
+#if wxUSE_UNICODE && defined(HAVE_WOSTREAM)
-#endif // wxSTD_STRING_COMPATIBILITY
+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 wxScopedWCharBuffer&);
+
+#endif // wxUSE_UNICODE && defined(HAVE_WOSTREAM)
+
+#endif // wxUSE_STD_IOSTREAM
// ---------------------------------------------------------------------------
// wxCStrData implementation
inline wxCStrData::wxCStrData(wchar_t *buf)
: m_str(new wxString(buf)), m_offset(0), m_owned(true) {}
+inline wxCStrData::wxCStrData(const wxCStrData& data)
+ : m_str(data.m_owned ? new wxString(*data.m_str) : data.m_str),
+ m_offset(data.m_offset),
+ m_owned(data.m_owned)
+{
+}
+
inline wxCStrData::~wxCStrData()
{
if ( m_owned )
- delete m_str;
+ delete const_cast<wxString*>(m_str); // cast to silence warnings
}
-#if wxUSE_UNICODE
+// AsChar() and AsWChar() implementations simply forward to wxString methods
+
inline const wchar_t* wxCStrData::AsWChar() const
+{
+ const wchar_t * const p =
+#if wxUSE_UNICODE_WCHAR
+ m_str->wc_str();
+#elif wxUSE_UNICODE_UTF8
+ m_str->AsWChar(wxMBConvStrictUTF8());
#else
-inline const char* wxCStrData::AsChar() const
+ m_str->AsWChar(wxConvLibc);
#endif
+
+ // in Unicode build the string always has a valid Unicode representation
+ // and even if a conversion is needed (as in UTF8 case) it can't fail
+ //
+ // but in ANSI build the string contents might be not convertible to
+ // Unicode using the current locale encoding so we do need to check for
+ // errors
+#if !wxUSE_UNICODE
+ if ( !p )
+ {
+ // if conversion fails, return empty string and not NULL to avoid
+ // crashes in code written with either wxWidgets 2 wxString or
+ // std::string behaviour in mind: neither of them ever returns NULL
+ // from its c_str() and so we shouldn't neither
+ //
+ // notice that the same is done in AsChar() below and
+ // wxString::wc_str() and mb_str() for the same reasons
+ return L"";
+ }
+#endif // !wxUSE_UNICODE
+
+ return p + m_offset;
+}
+
+inline const char* wxCStrData::AsChar() const
{
- if ( m_offset == 0 )
- return m_str->wx_str(); // FIXME
- else
- return (const wxChar*)(m_str->begin() + m_offset);
+#if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
+ const char * const p = m_str->AsChar(wxConvLibc);
+ if ( !p )
+ return "";
+#else // !wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY
+ const char * const p = m_str->mb_str();
+#endif // wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
+
+ return p + m_offset;
}
inline wxString wxCStrData::AsString() const
return m_str->Mid(m_offset);
}
-inline wxCStrData::operator wxString() const { return AsString(); }
+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
{
if ( m_str->empty() )
- return wxUniChar(_T('\0'));
+ return wxUniChar(wxT('\0'));
else
return (*m_str)[m_offset];
}
inline wxUniChar wxCStrData::operator[](size_t n) const
{
- return m_str->at(m_offset + n);
+ // NB: we intentionally use operator[] and not at() here because the former
+ // works for the terminating NUL while the latter does not
+ return (*m_str)[m_offset + n];
}
// ----------------------------------------------------------------------------
-// implementation of wxString inline methods using wxCStrData
+// more wxCStrData operators
// ----------------------------------------------------------------------------
-inline wxString& wxString::operator=(const wxCStrData& cstr)
+// we need to define those to allow "size_t pos = p - s.c_str()" where p is
+// some pointer into the string
+inline size_t operator-(const char *p, const wxCStrData& cs)
+{
+ return p - cs.AsChar();
+}
+
+inline size_t operator-(const wchar_t *p, const wxCStrData& cs)
{
- return *this = cstr.AsString();
+ return p - cs.AsWChar();
}
// ----------------------------------------------------------------------------
// implementation of wx[W]CharBuffer inline methods using wxCStrData
// ----------------------------------------------------------------------------
-// FIXME-UTF8: move this to buffer.h; provide versions for both variants
-template<>
-inline void wxCharTypeBuffer<wxChar>::FromCStrData(const wxCStrData& cstr)
+// FIXME-UTF8: move this to buffer.h
+inline wxCharBuffer::wxCharBuffer(const wxCStrData& cstr)
+ : wxCharTypeBufferBase(cstr.AsCharBuf())
+{
+}
+
+inline wxWCharBuffer::wxWCharBuffer(const wxCStrData& cstr)
+ : wxCharTypeBufferBase(cstr.AsWCharBuf())
+{
+}
+
+#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;
+ const_cast<wxString*>(m_str)->m_iterators.ptr = this;
+ if ( m_next )
+ m_next->m_prev = this;
+ }
+ else
+ {
+ m_next = NULL;
+ }
+}
+
+void wxStringIteratorNode::clear()
{
- m_str = wxStrDup(cstr.AsString());
+ 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
+ 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/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/crt.h"
+#endif
+
+// ----------------------------------------------------------------------------
+// Checks on wxString characters
+// ----------------------------------------------------------------------------
+
+template<bool (T)(const wxUniChar& c)>
+ inline bool wxStringCheck(const wxString& val)
+ {
+ for ( wxString::const_iterator i = val.begin();
+ i != val.end();
+ ++i )
+ if (T(*i) == 0)
+ return false;
+ return true;
+ }
-#endif // _WX_WXSTRINGH__
+#endif // _WX_WXSTRING_H_
projects / wxWidgets.git / blobdiff