fix typo in drawing slider ticks; added assert to check for it (slightly modified...

[wxWidgets.git] / include / wx / string.h

diff --git a/include/wx/string.h b/include/wx/string.h
index e88f2e992b91893b01c8f2dca04ba55b23e96bcd..559817da0184cf4b4c35966162ad7d4ccf646637 100644 (file)
--- a/include/wx/string.h
+++ b/include/wx/string.h
@@ -9,89 +9,137 @@
 // Licence:     wxWindows license
 ///////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows license
 ///////////////////////////////////////////////////////////////////////////////
 

+/*
+    Efficient string class [more or less] compatible with MFC CString,
+    wxWindows version 1 wxString and std::string and some handy functions
+    missing from string.h.
+*/
+

 #ifndef _WX_WXSTRINGH__
 #define _WX_WXSTRINGH__
 
 #ifndef _WX_WXSTRINGH__
 #define _WX_WXSTRINGH__
 

-#ifdef __GNUG__
-#pragma interface "string.h"
+#if defined(__GNUG__) && !defined(__APPLE__)
+    #pragma interface "string.h"

 #endif
 
 #endif
 

-/* Dependencies (should be included before this header):
- *         string.h
- *         stdio.h
- *         stdarg.h
- *         limits.h
- */
-#ifdef __WXMAC__
-#include <ctype.h>
+// ----------------------------------------------------------------------------
+// conditinal compilation
+// ----------------------------------------------------------------------------
+
+// compile the std::string compatibility functions if defined
+#define   wxSTD_STRING_COMPATIBILITY
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "wx/defs.h"        // everybody should include this
+
+#if defined(__WXMAC__) || defined(__VISAGECPP__)
+    #include <ctype.h>

 #endif
 #endif

-#include <string.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <limits.h>
-#include <stdlib.h>
-
-#ifndef  WX_PRECOMP
-  #include "wx/defs.h"     // Robert Roebling
-  #ifdef    WXSTRING_IS_WXOBJECT
-    #include "wx/object.h"
-  #endif
+
+#ifdef __EMX__
+    #include <std.h>

 #endif
 
 #endif
 

-#include "wx/debug.h"
+#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
+   // problem in VACPP V4 with including stdlib.h multiple times
+   // strconv includes it anyway
+#  include <stdio.h>
+#  include <string.h>
+#  include <stdarg.h>
+#  include <limits.h>
+#else
+#  include <string.h>
+#  include <stdio.h>
+#  include <stdarg.h>
+#  include <limits.h>
+#  include <stdlib.h>
+#endif

 
 

-/*
-    Efficient string class [more or less] compatible with MFC CString,
-    wxWindows version 1 wxString and std::string and some handy functions
-    missing from string.h.
-*/
+#ifdef HAVE_STRINGS_H
+    #include <strings.h>    // for strcasecmp()
+#endif // HAVE_STRINGS_H
+
+#include "wx/wxchar.h"      // for wxChar
+#include "wx/buffer.h"      // for wxCharBuffer
+#include "wx/strconv.h"     // for wxConvertXXX() macros and wxMBConv classes

 
 // ---------------------------------------------------------------------------
 // macros
 // ---------------------------------------------------------------------------
 
 
 // ---------------------------------------------------------------------------
 // macros
 // ---------------------------------------------------------------------------
 

-// compile the std::string compatibility functions if defined
-#define   wxSTD_STRING_COMPATIBILITY
+// casts [unfortunately!] needed to call some broken functions which require
+// "char *" instead of "const char *"
+#define   WXSTRINGCAST (wxChar *)(const wxChar *)
+#define   wxCSTRINGCAST (wxChar *)(const wxChar *)
+#define   wxMBSTRINGCAST (char *)(const char *)
+#define   wxWCSTRINGCAST (wchar_t *)(const wchar_t *)
+
+// implementation only
+#define   wxASSERT_VALID_INDEX(i) \
+    wxASSERT_MSG( (size_t)(i) <= Len(), _T("invalid index in wxString") )
+
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------

 
 

-// define to derive wxString from wxObject
-#undef    WXSTRING_IS_WXOBJECT
+#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
+// must define this static for VA or else you get multiply defined symbols everywhere
+extern const unsigned int wxSTRING_MAXLEN;

 
 

+#else

 // maximum possible length for a string means "take all string" everywhere
 // maximum possible length for a string means "take all string" everywhere

-//  (as sizeof(StringData) is unknown here we substract 100)
-#define   STRING_MAXLEN     (UINT_MAX - 100)
+//  (as sizeof(StringData) is unknown here, we substract 100)
+const unsigned int wxSTRING_MAXLEN = UINT_MAX - 100;

 
 

-// 'naughty' cast
-#define   WXSTRINGCAST (char *)(const char *)
+#endif

 
 

-// implementation only
-#define   ASSERT_VALID_INDEX(i) wxASSERT( (unsigned)(i) < Len() )
+// ----------------------------------------------------------------------------
+// global data
+// ----------------------------------------------------------------------------
+
+// global pointer to empty string
+WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString;

 
 // ---------------------------------------------------------------------------
 
 // ---------------------------------------------------------------------------

-// Global functions complementing standard C string library replacements for
+// global functions complementing standard C string library replacements for

 // strlen() and portable strcasecmp()
 //---------------------------------------------------------------------------
 
 // strlen() and portable strcasecmp()
 //---------------------------------------------------------------------------
 

+// Use wxXXX() functions from wxchar.h instead! These functions are for
+// backwards compatibility only.
+

 // checks whether the passed in pointer is NULL and if the string is empty
 // checks whether the passed in pointer is NULL and if the string is empty

-inline bool WXDLLEXPORT IsEmpty(const char *p) { return !p || !*p; }
+inline bool IsEmpty(const char *p) { return (!p || !*p); }

 
 // safe version of strlen() (returns 0 if passed NULL pointer)
 
 // safe version of strlen() (returns 0 if passed NULL pointer)

-inline size_t WXDLLEXPORT Strlen(const char *psz)
+inline size_t Strlen(const char *psz)

   { return psz ? strlen(psz) : 0; }
 
 // portable strcasecmp/_stricmp
   { return psz ? strlen(psz) : 0; }
 
 // portable strcasecmp/_stricmp

-inline int WXDLLEXPORT Stricmp(const char *psz1, const char *psz2)
+inline int Stricmp(const char *psz1, const char *psz2)

 {
 {

-#if     defined(_MSC_VER)
+#if defined(__VISUALC__) || ( defined(__MWERKS__) && defined(__INTEL__) )

   return _stricmp(psz1, psz2);
   return _stricmp(psz1, psz2);

-#elif     defined(__SC__)
+#elif defined(__SC__)

   return _stricmp(psz1, psz2);
   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(__BORLANDC__)
   return stricmp(psz1, psz2);
 #elif defined(__WATCOMC__)
   return stricmp(psz1, psz2);

-#elif   defined(__UNIX__) || defined(__GNUWIN32__)
+#elif defined(__DJGPP__)
+  return stricmp(psz1, psz2);
+#elif defined(__EMX__)
+  return stricmp(psz1, psz2);
+#elif defined(__WXPM__)
+  return stricmp(psz1, psz2);
+#elif defined(__UNIX__) || defined(__GNUWIN32__)

   return strcasecmp(psz1, psz2);
   return strcasecmp(psz1, psz2);

-#elif defined(__MWERKS__) && !defined(_MSC_VER)
+#elif defined(__MWERKS__) && !defined(__INTEL__)

   register char c1, c2;
   do {
     c1 = tolower(*psz1++);
   register char c1, c2;
   do {
     c1 = tolower(*psz1++);


@@ -117,44 +165,42 @@ inline int WXDLLEXPORT Stricmp(const char *psz1, const char *psz2)
 #endif  // OS/compiler
 }
 
 #endif  // OS/compiler
 }
 

-// ----------------------------------------------------------------------------
-// global data
-// ----------------------------------------------------------------------------
-
-WXDLLEXPORT_DATA(extern const char*) wxEmptyString;
-
-// global pointer to empty string
-WXDLLEXPORT_DATA(extern const char*) g_szNul;
-

 // return an empty wxString
 class WXDLLEXPORT wxString; // not yet defined
 // return an empty wxString
 class WXDLLEXPORT wxString; // not yet defined

-inline const wxString& wxGetEmptyString() { return *(wxString *)&g_szNul; }
+inline const wxString& wxGetEmptyString() { return *(wxString *)&wxEmptyString; }

 
 // ---------------------------------------------------------------------------
 // string data prepended with some housekeeping info (used by wxString class),
 // is never used directly (but had to be put here to allow inlining)
 // ---------------------------------------------------------------------------
 
 // ---------------------------------------------------------------------------
 // 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 WXDLLEXPORT wxStringData
 {
   int     nRefs;        // reference count
   size_t  nDataLength,  // actual string length
           nAllocLength; // allocated memory size
 
 struct WXDLLEXPORT wxStringData
 {
   int     nRefs;        // reference count
   size_t  nDataLength,  // actual string length
           nAllocLength; // allocated memory size
 

-  // mimics declaration 'char data[nAllocLength]'
-  char* data() const { return (char*)(this + 1); }
+  // mimics declaration 'wxChar data[nAllocLength]'
+  wxChar* data() const { return (wxChar*)(this + 1); }

 
   // empty string has a special ref count so it's never deleted
 
   // empty string has a special ref count so it's never deleted

-  bool  IsEmpty()   const { return nRefs == -1; }
-  bool  IsShared()  const { return nRefs > 1;   }
+  bool  IsEmpty()   const { return (nRefs == -1); }
+  bool  IsShared()  const { return (nRefs > 1);   }

 
   // lock/unlock
   void  Lock()   { if ( !IsEmpty() ) nRefs++;                    }
 
   // lock/unlock
   void  Lock()   { if ( !IsEmpty() ) nRefs++;                    }

+
+  // VC++ will refuse to inline this function but profiling shows that it
+  // is wrong
+#if defined(__VISUALC__) && (__VISUALC__ >= 1200)
+  __forceinline
+#endif

   void  Unlock() { if ( !IsEmpty() && --nRefs == 0) free(this);  }
 
   // if we had taken control over string memory (GetWriteBuf), it's
   // intentionally put in invalid state
   void  Unlock() { if ( !IsEmpty() && --nRefs == 0) free(this);  }
 
   // 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; }
+  void  Validate(bool b)  { nRefs = (b ? 1 : 0); }
+  bool  IsValid() const   { return (nRefs != 0); }

 };
 
 // ---------------------------------------------------------------------------
 };
 
 // ---------------------------------------------------------------------------


@@ -180,15 +226,8 @@ struct WXDLLEXPORT wxStringData
 //  - regular expressions support
 // ---------------------------------------------------------------------------
 
 //  - regular expressions support
 // ---------------------------------------------------------------------------
 

-#ifdef  WXSTRING_IS_WXOBJECT
-class WXDLLEXPORT wxString : public wxObject
-{
-    DECLARE_DYNAMIC_CLASS(wxString)
-#else   //WXSTRING_IS_WXOBJECT

 class WXDLLEXPORT wxString
 {
 class WXDLLEXPORT wxString
 {

-#endif  //WXSTRING_IS_WXOBJECT
-

 friend class WXDLLEXPORT wxArrayString;
 
   // NB: special care was taken in arranging the member functions in such order
 friend class WXDLLEXPORT wxArrayString;
 
   // NB: special care was taken in arranging the member functions in such order


@@ -196,7 +235,7 @@ friend class WXDLLEXPORT wxArrayString;
   //     performace critical functions are still inlined if you change order!
 private:
   // points to data preceded by wxStringData structure with ref count info
   //     performace critical functions are still inlined if you change order!
 private:
   // points to data preceded by wxStringData structure with ref count info

-  char *m_pchData;
+  wxChar *m_pchData;

 
   // accessor to string data
   wxStringData* GetStringData() const { return (wxStringData*)m_pchData - 1; }
 
   // accessor to string data
   wxStringData* GetStringData() const { return (wxStringData*)m_pchData - 1; }


@@ -204,36 +243,52 @@ private:
   // string (re)initialization functions
     // initializes the string to the empty value (must be called only from
     // ctors, use Reinit() otherwise)
   // string (re)initialization functions
     // initializes the string to the empty value (must be called only from
     // ctors, use Reinit() otherwise)

-  void Init() { m_pchData = (char *)g_szNul; }
+  void Init() { m_pchData = (wxChar *)wxEmptyString; }

     // initializaes the string with (a part of) C-string
     // initializaes the string with (a part of) C-string

-  void InitWith(const char *psz, size_t nPos = 0, size_t nLen = STRING_MAXLEN);
+  void InitWith(const wxChar *psz, size_t nPos = 0, size_t nLen = wxSTRING_MAXLEN);

     // as Init, but also frees old data
   void Reinit() { GetStringData()->Unlock(); Init(); }
 
   // memory allocation
     // as Init, but also frees old data
   void Reinit() { GetStringData()->Unlock(); Init(); }
 
   // memory allocation

-    // allocates memory for string of lenght nLen
-  void AllocBuffer(size_t nLen);
+    // allocates memory for string of length nLen
+  bool AllocBuffer(size_t nLen);

     // copies data to another string
     // copies data to another string

-  void AllocCopy(wxString&, int, int) const;
+  bool AllocCopy(wxString&, int, int) const;

     // effectively copies data to string
     // effectively copies data to string

-  void AssignCopy(size_t, const char *);
+  bool AssignCopy(size_t, const wxChar *);

 
   // append a (sub)string
 
   // append a (sub)string

-  void ConcatSelf(int nLen, const char *src);
+  bool ConcatSelf(int nLen, const wxChar *src);

 
   // 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)
 
   // 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)

-  void CopyBeforeWrite();
-  void AllocBeforeWrite(size_t);
+  bool CopyBeforeWrite();
+  bool AllocBeforeWrite(size_t);
+
+  // 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);
+
+  // 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);

 
 public:
   // constructors and destructor
     // ctor for an empty string
 
 public:
   // constructors and destructor
     // ctor for an empty string

-  wxString() { Init(); }
+  wxString() : m_pchData(NULL) { Init(); }

     // copy ctor
     // copy ctor

-  wxString(const wxString& stringSrc)
+  wxString(const wxString& stringSrc) : m_pchData(NULL)

   {
   {

-    wxASSERT( stringSrc.GetStringData()->IsValid() );
+    wxASSERT_MSG( stringSrc.GetStringData()->IsValid(),
+                  _T("did you forget to call UngetWriteBuf()?") );

 
     if ( stringSrc.IsEmpty() ) {
       // nothing to do for an empty string
 
     if ( stringSrc.IsEmpty() ) {
       // nothing to do for an empty string


@@ -245,15 +300,41 @@ public:
     }
   }
     // string containing nRepeat copies of ch
     }
   }
     // string containing nRepeat copies of ch

-  wxString(char ch, size_t nRepeat = 1);
+  wxString(wxChar ch, size_t nRepeat = 1);

     // ctor takes first nLength characters from C string
     // ctor takes first nLength characters from C string

-    // (default value of STRING_MAXLEN means take all the string)
-  wxString(const char *psz, size_t nLength = STRING_MAXLEN)
-    { InitWith(psz, 0, nLength); }
+    // (default value of wxSTRING_MAXLEN means take all the string)
+  wxString(const wxChar *psz, size_t nLength = wxSTRING_MAXLEN)
+      : m_pchData(NULL)
+      { InitWith(psz, 0, nLength); }
+  wxString(const wxChar *psz, wxMBConv& WXUNUSED(conv), size_t nLength = wxSTRING_MAXLEN)
+      : m_pchData(NULL)
+      { InitWith(psz, 0, nLength); }
+
+#if wxUSE_UNICODE
+    // from multibyte string
+    // (NB: nLength is right now number of Unicode characters, not
+    //  characters in psz! So try not to use it yet!)
+  wxString(const char *psz, wxMBConv& conv, size_t nLength = wxSTRING_MAXLEN);
+    // from wxWCharBuffer (i.e. return from wxGetString)
+  wxString(const wxWCharBuffer& psz)
+    { InitWith(psz, 0, wxSTRING_MAXLEN); }
+#else // ANSI

     // from C string (for compilers using unsigned char)
     // from C string (for compilers using unsigned char)

-  wxString(const unsigned char* psz, size_t nLength = STRING_MAXLEN);
-    // from wide (UNICODE) string
-  wxString(const wchar_t *pwz);
+  wxString(const unsigned char* psz, size_t nLength = wxSTRING_MAXLEN)
+      : m_pchData(NULL)
+      { InitWith((const char*)psz, 0, nLength); }
+
+#if wxUSE_WCHAR_T
+    // from wide (Unicode) string
+  wxString(const wchar_t *pwz, wxMBConv& conv = wxConvLibc, size_t nLength = wxSTRING_MAXLEN);
+#endif // !wxUSE_WCHAR_T
+
+    // from wxCharBuffer
+  wxString(const wxCharBuffer& psz)
+      : m_pchData(NULL)
+      { InitWith(psz, 0, wxSTRING_MAXLEN); }
+#endif // Unicode/ANSI
+

     // dtor is not virtual, this class must not be inherited from!
  ~wxString() { GetStringData()->Unlock(); }
 
     // dtor is not virtual, this class must not be inherited from!
  ~wxString() { GetStringData()->Unlock(); }
 


@@ -262,14 +343,16 @@ public:
   size_t Len() const { return GetStringData()->nDataLength; }
     // string contains any characters?
   bool IsEmpty() const { return Len() == 0; }
   size_t Len() const { return GetStringData()->nDataLength; }
     // string contains any characters?
   bool IsEmpty() const { return Len() == 0; }

+    // empty string is "FALSE", so !str will return TRUE
+  bool operator!() const { return IsEmpty(); }
+    // truncate the string to given length
+  wxString& Truncate(size_t uiLen);

     // empty string contents
   void Empty()
   {
     // empty string contents
   void Empty()
   {

-    if ( !IsEmpty() )
-      Reinit();
+    Truncate(0);

 
 

-    // should be empty
-    wxASSERT( GetStringData()->nDataLength == 0 );
+    wxASSERT_MSG( IsEmpty(), _T("string not empty after call to Empty()?") );

   }
     // empty the string and free memory
   void Clear()
   }
     // empty the string and free memory
   void Clear()


@@ -277,8 +360,9 @@ public:
     if ( !GetStringData()->IsEmpty() )
       Reinit();
 
     if ( !GetStringData()->IsEmpty() )
       Reinit();
 

-    wxASSERT( GetStringData()->nDataLength == 0 );  // should be empty
-    wxASSERT( GetStringData()->nAllocLength == 0 ); // and not own any memory
+    wxASSERT_MSG( !GetStringData()->nDataLength &&
+                  !GetStringData()->nAllocLength,
+                  _T("string should be empty after Clear()") );

   }
 
   // contents test
   }
 
   // contents test


@@ -291,55 +375,164 @@ public:
 
   // data access (all indexes are 0 based)
     // read access
 
   // data access (all indexes are 0 based)
     // read access

-    char  GetChar(size_t n) const
-      { ASSERT_VALID_INDEX( n );  return m_pchData[n]; }
+    wxChar  GetChar(size_t n) const
+      { wxASSERT_VALID_INDEX( n );  return m_pchData[n]; }

     // read/write access
     // read/write access

-    char& GetWritableChar(size_t n)
-      { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
+    wxChar& GetWritableChar(size_t n)
+      { wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }

     // write access
     // write access

-    void  SetChar(size_t n, char ch)
-      { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); m_pchData[n] = ch; }
+    void  SetChar(size_t n, wxChar ch)
+      { wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); m_pchData[n] = ch; }

 
     // get last character
 
     // get last character

-    char  Last() const
-      { wxASSERT( !IsEmpty() ); return m_pchData[Len() - 1]; }
+    wxChar  Last() const
+      {
+          wxASSERT_MSG( !IsEmpty(), _T("wxString: index out of bounds") );
+
+          return m_pchData[Len() - 1];
+      }
+

     // get writable last character
     // get writable last character

-    char& Last()
-      { wxASSERT( !IsEmpty() ); CopyBeforeWrite(); return m_pchData[Len()-1]; }
+    wxChar& Last()
+      {
+          wxASSERT_MSG( !IsEmpty(), _T("wxString: index out of bounds") );
+          CopyBeforeWrite();
+          return m_pchData[Len()-1];
+      }
+
+    /*
+        So why do we have all these overloaded operator[]s? A bit of history:
+        initially there was only one of them, taking size_t. Then people
+        started complaining because they wanted to use ints as indices (I
+        wonder why) and compilers were giving warnings about it, so we had to
+        add the operator[](int). Then it became apparent that you couldn't
+        write str[0] any longer because there was ambiguity between two
+        overloads and so you now had to write str[0u] (or, of course, use the
+        explicit casts to either int or size_t but nobody did this).
+
+        Finally, someone decided to compile wxWin on an Alpha machine and got
+        a surprize: str[0u] didn't compile there because it is of type
+        unsigned int and size_t is unsigned _long_ on Alpha and so there was
+        ambiguity between converting uint to int or ulong. To fix this one we
+        now add operator[](uint) for the machines where size_t is not already
+        the same as unsigned int - hopefully this fixes the problem (for some
+        time)
+
+        The only real fix is, of course, to remove all versions but the one
+        taking size_t...
+     */

 
 

-    // on alpha-linux this gives overload problems:
-    // Also on Solaris, so removing for now (JACS)
-#if ! defined(__ALPHA__)

     // operator version of GetChar
     // operator version of GetChar

-    char  operator[](size_t n) const
-      { ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
-#endif
+    wxChar  operator[](size_t n) const
+      { wxASSERT_VALID_INDEX( n ); return m_pchData[n]; }
+
+    // operator version of GetChar
+    wxChar  operator[](int n) const
+      { wxASSERT_VALID_INDEX( n ); return m_pchData[n]; }

 
 

+    // operator version of GetWriteableChar
+    wxChar& operator[](size_t n)
+      { wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
+
+#ifndef wxSIZE_T_IS_UINT

     // operator version of GetChar
     // operator version of GetChar

-    char  operator[](int n) const
-      { ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
-    // operator version of GetWritableChar
-    char& operator[](size_t n)
-      { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
+    wxChar operator[](unsigned int n) const
+      { wxASSERT_VALID_INDEX( n ); return m_pchData[n]; }
+
+    // operator version of GetWriteableChar
+    wxChar& operator[](unsigned int n)
+      { wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
+#endif // size_t != unsigned int

 
     // implicit conversion to C string
 
     // implicit conversion to C string

-    operator const char*() const { return m_pchData; }
+    operator const wxChar*() const { return m_pchData; }
+

     // explicit conversion to C string (use this with printf()!)
     // explicit conversion to C string (use this with printf()!)

-    const char* c_str()   const { return m_pchData; }
+    const wxChar* c_str()   const { return m_pchData; }
+    // identical to c_str(), for wxWin 1.6x compatibility
+    const wxChar* wx_str()  const { return m_pchData; }
+    // identical to c_str(), for MFC compatibility
+    const wxChar* GetData() const { return m_pchData; }
+
+    // conversion to/from plain (i.e. 7 bit) ASCII: this is useful for
+    // converting numbers or strings which are certain not to contain special
+    // chars (typically system functions, X atoms, environment variables etc.)

     //
     //

-    const char* GetData() const { return m_pchData; }
+    // 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;
+#else // ANSI
+    static wxString FromAscii(const char *ascii) { return wxString( ascii ); }
+    static wxString FromAscii(const char ascii) { return wxString( ascii ); }
+    const char *ToAscii() const { return c_str(); }
+#endif // Unicode/!Unicode
+
+    // conversions with (possible) format conversions: have to return a
+    // buffer with temporary data
+    //
+    // the functions defined (in either Unicode or ANSI) mode are mb_str() to
+    // return an ANSI (multibyte) string, wc_str() to return a wide string and
+    // fn_str() to return a string which should be used with the OS APIs
+    // 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(wxMBConv& conv = wxConvLibc) const
+        { return conv.cWC2MB(m_pchData); }
+
+    const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
+
+    const wxChar* wc_str() const { return m_pchData; }
+
+    // for compatibility with !wxUSE_UNICODE version
+    const wxChar* wc_str(wxMBConv& WXUNUSED(conv)) const { return m_pchData; }
+
+#if wxMBFILES
+    const wxCharBuffer fn_str() const { return mb_str(wxConvFile); }
+#else // !wxMBFILES
+    const wxChar* fn_str() const { return m_pchData; }
+#endif // wxMBFILES/!wxMBFILES
+#else // ANSI
+    const wxChar* mb_str() const { return m_pchData; }
+
+    // for compatibility with wxUSE_UNICODE version
+    const wxChar* mb_str(wxMBConv& WXUNUSED(conv)) const { return m_pchData; }
+
+    const wxWX2MBbuf mbc_str() const { return mb_str(); }
+
+#if wxUSE_WCHAR_T
+    const wxWCharBuffer wc_str(wxMBConv& conv) const
+        { return conv.cMB2WC(m_pchData); }
+#endif // wxUSE_WCHAR_T
+
+    const wxChar* fn_str() const { return m_pchData; }
+#endif // Unicode/ANSI

 
   // overloaded assignment
     // from another wxString
   wxString& operator=(const wxString& stringSrc);
     // from a character
 
   // overloaded assignment
     // from another wxString
   wxString& operator=(const wxString& stringSrc);
     // from a character

-  wxString& operator=(char ch);
+  wxString& operator=(wxChar ch);

     // from a C string
     // from a C string

-  wxString& operator=(const char *psz);
+  wxString& operator=(const wxChar *psz);
+#if wxUSE_UNICODE
+    // from wxWCharBuffer
+  wxString& operator=(const wxWCharBuffer& psz)
+  { (void) operator=((const wchar_t *)psz); return *this; }
+#else // ANSI

     // from another kind of C string
   wxString& operator=(const unsigned char* psz);
     // 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);
     // 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

 
   // string concatenation
     // in place concatenation
 
   // string concatenation
     // in place concatenation


@@ -351,30 +544,55 @@ public:
       // string += string
   wxString& operator<<(const wxString& s)
   {
       // string += string
   wxString& operator<<(const wxString& s)
   {

-    wxASSERT( s.GetStringData()->IsValid() );
+    wxASSERT_MSG( s.GetStringData()->IsValid(),
+                  _T("did you forget to call UngetWriteBuf()?") );

 
     ConcatSelf(s.Len(), s);
     return *this;
   }
       // string += C string
 
     ConcatSelf(s.Len(), s);
     return *this;
   }
       // string += C string

-  wxString& operator<<(const char *psz)
-    { ConcatSelf(Strlen(psz), psz); return *this; }
+  wxString& operator<<(const wxChar *psz)
+    { ConcatSelf(wxStrlen(psz), psz); return *this; }

       // string += char
       // string += char

-  wxString& operator<<(char ch) { ConcatSelf(1, &ch); return *this; }
+  wxString& operator<<(wxChar ch) { ConcatSelf(1, &ch); return *this; }

 
       // string += string
   void operator+=(const wxString& s) { (void)operator<<(s); }
       // string += C string
 
       // string += string
   void operator+=(const wxString& s) { (void)operator<<(s); }
       // string += C string

-  void operator+=(const char *psz) { (void)operator<<(psz); }
+  void operator+=(const wxChar *psz) { (void)operator<<(psz); }

       // string += char
       // string += char

-  void operator+=(char ch) { (void)operator<<(ch); }
+  void operator+=(wxChar ch) { (void)operator<<(ch); }
+
+      // string += buffer (i.e. from wxGetString)
+#if wxUSE_UNICODE
+  wxString& operator<<(const wxWCharBuffer& s)
+    { (void)operator<<((const wchar_t *)s); return *this; }
+  void operator+=(const wxWCharBuffer& s)
+    { (void)operator<<((const wchar_t *)s); }
+#else // !wxUSE_UNICODE
+  wxString& operator<<(const wxCharBuffer& s)
+    { (void)operator<<((const char *)s); return *this; }
+  void operator+=(const wxCharBuffer& s)
+    { (void)operator<<((const char *)s); }
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE

 
     // string += C string
 
     // string += C string

-  wxString& Append(const char* psz)
-    { ConcatSelf(Strlen(psz), psz); return *this; }
+  wxString& Append(const wxString& s)
+    {
+        // test for IsEmpty() to share the string if possible
+        if ( IsEmpty() )
+            *this = s;
+        else
+            ConcatSelf(s.Length(), s.c_str());
+        return *this;
+    }
+  wxString& Append(const wxChar* psz)
+    { ConcatSelf(wxStrlen(psz), psz); return *this; }

     // append count copies of given character
     // append count copies of given character

-  wxString& Append(char ch, size_t count = 1u)
+  wxString& Append(wxChar ch, size_t count = 1u)

     { wxString str(ch, count); return *this << str; }
     { wxString str(ch, count); return *this << str; }

+  wxString& Append(const wxChar* psz, size_t nLen)
+    { ConcatSelf(nLen, psz); return *this; }

 
     // prepend a string, return the string itself
   wxString& Prepend(const wxString& str)
 
     // prepend a string, return the string itself
   wxString& Prepend(const wxString& str)


@@ -384,108 +602,153 @@ public:
       //
   friend wxString WXDLLEXPORT operator+(const wxString& string1,  const wxString& string2);
       //
       //
   friend wxString WXDLLEXPORT operator+(const wxString& string1,  const wxString& string2);
       //

-  friend wxString WXDLLEXPORT operator+(const wxString& string, char ch);
+  friend wxString WXDLLEXPORT operator+(const wxString& string, wxChar ch);

       //
       //

-  friend wxString WXDLLEXPORT operator+(char ch, const wxString& string);
+  friend wxString WXDLLEXPORT operator+(wxChar ch, const wxString& string);

       //
       //

-  friend wxString WXDLLEXPORT operator+(const wxString& string, const char *psz);
+  friend wxString WXDLLEXPORT operator+(const wxString& string, const wxChar *psz);

       //
       //

-  friend wxString WXDLLEXPORT operator+(const char *psz, const wxString& string);
+  friend wxString WXDLLEXPORT operator+(const wxChar *psz, const wxString& string);

 
   // stream-like functions
       // insert an int into string
 
   // stream-like functions
       // insert an int into string

-  wxString& operator<<(int i);
+  wxString& operator<<(int i)
+    { return (*this) << Format(_T("%d"), i); }
+      // insert an unsigned int into string
+  wxString& operator<<(unsigned int ui)
+    { return (*this) << Format(_T("%u"), ui); }
+      // insert a long into string
+  wxString& operator<<(long l)
+    { return (*this) << Format(_T("%ld"), l); }
+      // insert an unsigned long into string
+  wxString& operator<<(unsigned long ul)
+    { return (*this) << Format(_T("%lu"), ul); }

       // insert a float into string
       // insert a float into string

-  wxString& operator<<(float f);
+  wxString& operator<<(float f)
+    { return (*this) << Format(_T("%f"), f); }

       // insert a double into string
       // insert a double into string

-  wxString& operator<<(double d);
-  
+  wxString& operator<<(double d)
+    { return (*this) << Format(_T("%g"), d); }
+

   // string comparison
   // string comparison

-    // case-sensitive comparison: return 0 if =, +1 if > or -1 if <
-  int  Cmp(const char *psz) const { return strcmp(c_str(), psz); }
+    // case-sensitive comparison (returns a value < 0, = 0 or > 0)
+  int Cmp(const wxChar *psz) const { return wxStrcmp(c_str(), psz); }

     // same as Cmp() but not case-sensitive
     // same as Cmp() but not case-sensitive

-  int  CmpNoCase(const char *psz) const { return Stricmp(c_str(), psz); }
+  int CmpNoCase(const wxChar *psz) const { return wxStricmp(c_str(), psz); }

     // test for the string equality, either considering case or not
     // (if compareWithCase then the case matters)
     // test for the string equality, either considering case or not
     // (if compareWithCase then the case matters)

-  bool IsSameAs(const char *psz, bool compareWithCase = TRUE) const
+  bool IsSameAs(const wxChar *psz, bool compareWithCase = TRUE) const

     { return (compareWithCase ? Cmp(psz) : CmpNoCase(psz)) == 0; }
     { return (compareWithCase ? Cmp(psz) : CmpNoCase(psz)) == 0; }

+    // comparison with a signle character: returns TRUE if equal
+  bool IsSameAs(wxChar c, bool compareWithCase = TRUE) const
+    {
+      return (Len() == 1) && (compareWithCase ? GetChar(0u) == c
+                              : wxToupper(GetChar(0u)) == wxToupper(c));
+    }

 
   // simple sub-string extraction
       // return substring starting at nFirst of length nCount (or till the end
       // if nCount = default value)
 
   // simple sub-string extraction
       // return substring starting at nFirst of length nCount (or till the end
       // if nCount = default value)

-  wxString Mid(size_t nFirst, size_t nCount = STRING_MAXLEN) const;
+  wxString Mid(size_t nFirst, size_t nCount = wxSTRING_MAXLEN) const;

 
 

-    // operator version of Mid()
+      // operator version of Mid()

   wxString  operator()(size_t start, size_t len) const
     { return Mid(start, len); }
 
   wxString  operator()(size_t start, size_t len) const
     { return Mid(start, len); }
 

+      // check that the string starts with 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;
+

       // get first nCount characters
   wxString Left(size_t nCount) const;
       // get last nCount characters
   wxString Right(size_t nCount) 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 occurence of ch
+      // get all characters before the first occurance of ch

       // (returns the whole string if ch not found)
       // (returns the whole string if ch not found)

-  wxString BeforeFirst(char ch) const;
+  wxString BeforeFirst(wxChar ch) const;

       // get all characters before the last occurence of ch
       // (returns empty string if ch not found)
       // get all characters before the last occurence of ch
       // (returns empty string if ch not found)

-  wxString BeforeLast(char ch) const;
+  wxString BeforeLast(wxChar ch) const;

       // get all characters after the first occurence of ch
       // (returns empty string if ch not found)
       // get all characters after the first occurence of ch
       // (returns empty string if ch not found)

-  wxString AfterFirst(char ch) const;
+  wxString AfterFirst(wxChar ch) const;

       // get all characters after the last occurence of ch
       // (returns the whole string if ch not found)
       // get all characters after the last occurence of ch
       // (returns the whole string if ch not found)

-  wxString AfterLast(char ch) const;
+  wxString AfterLast(wxChar ch) const;

 
     // for compatibility only, use more explicitly named functions above
 
     // for compatibility only, use more explicitly named functions above

-  wxString Before(char ch) const { return BeforeLast(ch); } 
-  wxString After(char ch) const { return AfterFirst(ch); } 
+  wxString Before(wxChar ch) const { return BeforeLast(ch); }
+  wxString After(wxChar ch) const { return AfterFirst(ch); }

 
   // case conversion
 
   // case conversion

-      // convert to upper case, return the string itself
+      // convert to upper case in place, return the string itself

   wxString& MakeUpper();
   wxString& MakeUpper();

-      // convert to lower case, return the string itself
+      // 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 ;
+      // convert to lower case in place, return the string itself

   wxString& MakeLower();
   wxString& MakeLower();

+      // convert to lower case, return the copy of the string
+  wxString Lower() const ;

 
   // trimming/padding whitespace (either side) and truncating
       // remove spaces from left or from right (default) side
   wxString& Trim(bool bFromRight = TRUE);
       // add nCount copies chPad in the beginning or at the end (default)
 
   // trimming/padding whitespace (either side) and truncating
       // remove spaces from left or from right (default) side
   wxString& Trim(bool bFromRight = TRUE);
       // add nCount copies chPad in the beginning or at the end (default)

-  wxString& Pad(size_t nCount, char chPad = ' ', bool bFromRight = TRUE);
-      // truncate string to given length
-  wxString& Truncate(size_t uiLen);
+  wxString& Pad(size_t nCount, wxChar chPad = wxT(' '), bool bFromRight = TRUE);

 
   // searching and replacing
       // searching (return starting index, or -1 if not found)
 
   // searching and replacing
       // searching (return starting index, or -1 if not found)

-  int Find(char ch, bool bFromEnd = FALSE) const;   // like strchr/strrchr
+  int Find(wxChar ch, bool bFromEnd = FALSE) const;   // like strchr/strrchr

       // searching (return starting index, or -1 if not found)
       // searching (return starting index, or -1 if not found)

-  int Find(const char *pszSub) const;               // like strstr
+  int Find(const wxChar *pszSub) const;               // like strstr

       // replace first (or all of bReplaceAll) occurences of substring with
       // another string, returns the number of replacements made
       // replace first (or all of bReplaceAll) occurences of substring with
       // another string, returns the number of replacements made

-  size_t Replace(const char *szOld,
-                 const char *szNew,
+  size_t Replace(const wxChar *szOld,
+                 const wxChar *szNew,

                  bool bReplaceAll = TRUE);
 
     // check if the string contents matches a mask containing '*' and '?'
                  bool bReplaceAll = TRUE);
 
     // check if the string contents matches a mask containing '*' and '?'

-  bool Matches(const char *szMask) const;
+  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 a double
+    bool ToDouble(double *val) const;

 
   // formated input/output
     // as sprintf(), returns the number of characters written or < 0 on error
 
   // formated input/output
     // as sprintf(), returns the number of characters written or < 0 on error

-  int Printf(const char *pszFormat, ...);
+    // (take 'this' into account in attribute parameter count)
+  int Printf(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_2;

     // as vprintf(), returns the number of characters written or < 0 on error
     // as vprintf(), returns the number of characters written or < 0 on error

-  int PrintfV(const char* pszFormat, va_list argptr);
+  int PrintfV(const wxChar* pszFormat, va_list argptr);
+
+    // returns the string containing the result of Printf() to it
+  static wxString Format(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_1;
+    // the same as above, but takes a va_list
+  static wxString FormatV(const wxChar *pszFormat, 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
 
   // 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

-  void Alloc(size_t nLen);
+  bool Alloc(size_t nLen);

     // minimize the string's memory
     // only works if the data of this string is not shared
     // minimize the string's memory
     // only works if the data of this string is not shared

-  void Shrink();
+  bool Shrink();

     // get writable buffer of at least nLen bytes. Unget() *must* be called
     // a.s.a.p. to put string back in a reasonable state!
     // get writable buffer of at least nLen bytes. Unget() *must* be called
     // a.s.a.p. to put string back in a reasonable state!

-  char *GetWriteBuf(size_t nLen);
+  wxChar *GetWriteBuf(size_t nLen);

     // call this immediately after GetWriteBuf() has been used
   void UngetWriteBuf();
     // call this immediately after GetWriteBuf() has been used
   void UngetWriteBuf();

+  void UngetWriteBuf(size_t nLen);

 
   // wxWindows version 1 compatibility functions
 
 
   // wxWindows version 1 compatibility functions
 


@@ -496,24 +759,19 @@ public:
   enum caseCompare {exact, ignoreCase};
     // values for first parameter of Strip function
   enum stripType {leading = 0x1, trailing = 0x2, both = 0x3};
   enum caseCompare {exact, ignoreCase};
     // values for first parameter of Strip function
   enum stripType {leading = 0x1, trailing = 0x2, both = 0x3};

-    // use Printf()
-  inline int sprintf(const char *pszFormat, ...)
-  {
-    va_list argptr;
-    va_start(argptr, pszFormat);
-    int iLen = PrintfV(pszFormat, argptr);
-    va_end(argptr);
-    return iLen;
-  }
+
+  // use Printf()
+  // (take 'this' into account in attribute parameter count)
+  int sprintf(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_2;

 
     // use Cmp()
 
     // use Cmp()

-  inline int CompareTo(const char* psz, caseCompare cmp = exact) const
+  inline int CompareTo(const wxChar* psz, caseCompare cmp = exact) const

     { return cmp == exact ? Cmp(psz) : CmpNoCase(psz); }
 
     // use Len
   size_t Length() const { return Len(); }
     // Count the number of characters
     { return cmp == exact ? Cmp(psz) : CmpNoCase(psz); }
 
     // use Len
   size_t Length() const { return Len(); }
     // Count the number of characters

-  int Freq(char ch) const;
+  int Freq(wxChar ch) const;

     // use MakeLower
   void LowerCase() { MakeLower(); }
     // use MakeUpper
     // use MakeLower
   void LowerCase() { MakeLower(); }
     // use MakeUpper


@@ -522,19 +780,19 @@ public:
   wxString Strip(stripType w = trailing) const;
 
     // use Find (more general variants not yet supported)
   wxString Strip(stripType w = trailing) const;
 
     // use Find (more general variants not yet supported)

-  size_t Index(const char* psz) const { return Find(psz); }
-  size_t Index(char ch)         const { return Find(ch);  }
+  size_t Index(const wxChar* psz) const { return Find(psz); }
+  size_t Index(wxChar ch)         const { return Find(ch);  }

     // use Truncate
   wxString& Remove(size_t pos) { return Truncate(pos); }
     // use Truncate
   wxString& Remove(size_t pos) { return Truncate(pos); }

-  wxString& RemoveLast() { return Truncate(Len() - 1); }
+  wxString& RemoveLast(size_t n = 1) { return Truncate(Len() - n); }

 
   wxString& Remove(size_t nStart, size_t nLen) { return erase( nStart, nLen ); }
 
     // use Find()
 
   wxString& Remove(size_t nStart, size_t nLen) { return erase( nStart, nLen ); }
 
     // use Find()

-  int First( const char ch ) const { return Find(ch); }
-  int First( const char* psz ) const { return Find(psz); }
+  int First( const wxChar ch ) const { return Find(ch); }
+  int First( const wxChar* psz ) const { return Find(psz); }

   int First( const wxString &str ) const { return Find(str); }
   int First( const wxString &str ) const { return Find(str); }

-  int Last( const char ch ) const { return Find(ch, TRUE); }
+  int Last( const wxChar ch ) const { return Find(ch, TRUE); }

   bool Contains(const wxString& str) const { return Find(str) != -1; }
 
     // use IsEmpty()
   bool Contains(const wxString& str) const { return Find(str) != -1; }
 
     // use IsEmpty()


@@ -543,14 +801,21 @@ public:
 #ifdef  wxSTD_STRING_COMPATIBILITY
   // std::string compatibility functions
 
 #ifdef  wxSTD_STRING_COMPATIBILITY
   // std::string compatibility functions
 

+  // standard types
+  typedef wxChar value_type;
+  typedef const value_type *const_iterator;
+

   // an 'invalid' value for string index
   static const size_t npos;
 
   // constructors
     // take nLen chars starting at nPos
   wxString(const wxString& str, size_t nPos, size_t nLen)
   // an 'invalid' value for string index
   static const size_t npos;
 
   // constructors
     // take nLen chars starting at nPos
   wxString(const wxString& str, size_t nPos, size_t nLen)

+      : m_pchData(NULL)

   {
   {

-    wxASSERT( str.GetStringData()->IsValid() );
+    wxASSERT_MSG( str.GetStringData()->IsValid(),
+                  _T("did you forget to call UngetWriteBuf()?") );
+

     InitWith(str.c_str(), nPos, nLen == npos ? 0 : nLen);
   }
     // take all characters from pStart to pEnd
     InitWith(str.c_str(), nPos, nLen == npos ? 0 : nLen);
   }
     // take all characters from pStart to pEnd


@@ -562,19 +827,26 @@ public:
     // return the length of the string
   size_t length() const { return Len(); }
     // return the maximum size of the string
     // return the length of the string
   size_t length() const { return Len(); }
     // return the maximum size of the string

-  size_t max_size() const { return STRING_MAXLEN; }
+  size_t max_size() const { return wxSTRING_MAXLEN; }

     // resize the string, filling the space with c if c != 0
     // resize the string, filling the space with c if c != 0

-  void resize(size_t nSize, char ch = '\0');
+  void resize(size_t nSize, wxChar ch = wxT('\0'));

     // delete the contents of the string
   void clear() { Empty(); }
     // returns true if the string is empty
   bool empty() const { return IsEmpty(); }
     // delete the contents of the string
   void clear() { Empty(); }
     // returns true if the string is empty
   bool empty() const { return IsEmpty(); }

+    // inform string about planned change in size
+  void reserve(size_t sz) { Alloc(sz); }

 
   // lib.string.access
     // return the character at position n
 
   // lib.string.access
     // return the character at position n

-  char at(size_t n) const { return GetChar(n); }
+  wxChar at(size_t n) const { return GetChar(n); }

     // returns the writable character at position n
     // returns the writable character at position n

-  char& at(size_t n) { return GetWritableChar(n); }
+  wxChar& at(size_t n) { return GetWritableChar(n); }
+
+    // first valid index position
+  const_iterator begin() const { return wx_str(); }
+    // position one after the last valid one
+  const_iterator end() const { return wx_str() + length(); }

 
   // lib.string.modifiers
     // append a string
 
   // lib.string.modifiers
     // append a string


@@ -584,50 +856,51 @@ public:
   wxString& append(const wxString& str, size_t pos, size_t n)
     { ConcatSelf(n, str.c_str() + pos); return *this; }
     // append first n (or all if n == npos) characters of sz
   wxString& append(const wxString& str, size_t pos, size_t n)
     { ConcatSelf(n, str.c_str() + pos); return *this; }
     // append first n (or all if n == npos) characters of sz

-  wxString& append(const char *sz, size_t n = npos)
-    { ConcatSelf(n == npos ? Strlen(sz) : n, sz); return *this; }
+  wxString& append(const wxChar *sz, size_t n = npos)
+    { ConcatSelf(n == npos ? wxStrlen(sz) : n, sz); return *this; }

 
     // append n copies of ch
 
     // append n copies of ch

-  wxString& append(size_t n, char ch) { return Pad(n, ch); }
+  wxString& append(size_t n, wxChar ch) { return Pad(n, ch); }

 
     // same as `this_string = str'
 
     // same as `this_string = str'

-  wxString& assign(const wxString& str) { return (*this) = str; }
+  wxString& assign(const wxString& str)
+    { return *this = str; }

     // same as ` = str[pos..pos + n]
   wxString& assign(const wxString& str, size_t pos, size_t n)
     // same as ` = str[pos..pos + n]
   wxString& assign(const wxString& str, size_t pos, size_t n)

-    { return *this = wxString((const char *)str + pos, n); }
+    { Empty(); return Append(str.c_str() + pos, n); }

     // same as `= first n (or all if n == npos) characters of sz'
     // same as `= first n (or all if n == npos) characters of sz'

-  wxString& assign(const char *sz, size_t n = npos)
-    { return *this = wxString(sz, n); }
+  wxString& assign(const wxChar *sz, size_t n = npos)
+    { Empty(); return Append(sz, n == npos ? wxStrlen(sz) : n); }

     // same as `= n copies of ch'
     // same as `= n copies of ch'

-  wxString& assign(size_t n, char ch)
-    { return *this = wxString(ch, n); }
+  wxString& assign(size_t n, wxChar ch)
+    { Empty(); return Append(ch, n); }

 
     // insert another string
   wxString& insert(size_t nPos, const wxString& str);
     // insert n chars of str starting at nStart (in str)
   wxString& insert(size_t nPos, const wxString& str, size_t nStart, size_t n)
 
     // insert another string
   wxString& insert(size_t nPos, const wxString& str);
     // 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 insert(nPos, wxString((const char *)str + nStart, n)); }
+    { return insert(nPos, wxString((const wxChar *)str + nStart, n)); }

 
     // insert first n (or all if n == npos) characters of sz
 
     // insert first n (or all if n == npos) characters of sz

-  wxString& insert(size_t nPos, const char *sz, size_t n = npos)
+  wxString& insert(size_t nPos, const wxChar *sz, size_t n = npos)

     { return insert(nPos, wxString(sz, n)); }
     // insert n copies of ch
     { return insert(nPos, wxString(sz, n)); }
     // insert n copies of ch

-  wxString& insert(size_t nPos, size_t n, char ch)
+  wxString& insert(size_t nPos, size_t n, wxChar ch)

     { return insert(nPos, wxString(ch, n)); }
 
     // delete characters from nStart to nStart + nLen
   wxString& erase(size_t nStart = 0, size_t nLen = npos);
 
     // replaces the substring of length nLen starting at nStart
     { return insert(nPos, wxString(ch, n)); }
 
     // delete characters from nStart to nStart + nLen
   wxString& erase(size_t nStart = 0, size_t nLen = npos);
 
     // replaces the substring of length nLen starting at nStart

-  wxString& replace(size_t nStart, size_t nLen, const char* sz);
+  wxString& replace(size_t nStart, size_t nLen, const wxChar* sz);

     // replaces the substring with nCount copies of ch
     // replaces the substring with nCount copies of ch

-  wxString& replace(size_t nStart, size_t nLen, size_t nCount, char ch);
+  wxString& replace(size_t nStart, size_t nLen, size_t nCount, wxChar ch);

     // replaces a substring with another substring
   wxString& replace(size_t nStart, size_t nLen,
                     const wxString& str, size_t nStart2, size_t nLen2);
     // replaces the substring with first nCount chars of sz
     // replaces a substring with another substring
   wxString& replace(size_t nStart, size_t nLen,
                     const wxString& str, size_t nStart2, size_t nLen2);
     // replaces the substring with first nCount chars of sz

-    wxString& replace(size_t nStart, size_t nLen,
-                      const char* sz, size_t nCount);
+  wxString& replace(size_t nStart, size_t nLen,
+                    const wxChar* sz, size_t nCount);

 
     // swap two strings
   void swap(wxString& str);
 
     // swap two strings
   void swap(wxString& str);


@@ -640,15 +913,15 @@ public:
   size_t find(const wxString& str, size_t nStart = 0) const;
 
   // VC++ 1.5 can't cope with this syntax.
   size_t find(const wxString& str, size_t nStart = 0) const;
 
   // VC++ 1.5 can't cope with this syntax.

-#if !(defined(_MSC_VER) && !defined(__WIN32__))
+#if !defined(__VISUALC__) || defined(__WIN32__)

     // find first n characters of sz
     // find first n characters of sz

-  size_t find(const char* sz, size_t nStart = 0, size_t n = npos) const;
-#endif
+  size_t find(const wxChar* sz, size_t nStart = 0, size_t n = npos) const;
+#endif // VC++ 1.5

 
   // Gives a duplicate symbol (presumably a case-insensitivity problem)
 #if !defined(__BORLANDC__)
     // find the first occurence of character ch after nStart
 
   // Gives a duplicate symbol (presumably a case-insensitivity problem)
 #if !defined(__BORLANDC__)
     // find the first occurence of character ch after nStart

-  size_t find(char ch, size_t nStart = 0) const;
+  size_t find(wxChar ch, size_t nStart = 0) const;

 #endif
     // rfind() family is exactly like find() but works right to left
 
 #endif
     // rfind() family is exactly like find() but works right to left
 


@@ -656,43 +929,49 @@ public:
   size_t rfind(const wxString& str, size_t nStart = npos) const;
 
   // VC++ 1.5 can't cope with this syntax.
   size_t rfind(const wxString& str, size_t nStart = npos) const;
 
   // VC++ 1.5 can't cope with this syntax.

-#if ! (defined(_MSC_VER) && !defined(__WIN32__))
+#if !defined(__VISUALC__) || defined(__WIN32__)

     // as find, but from the end
     // as find, but from the end

-  size_t rfind(const char* sz, size_t nStart = npos,
+  size_t rfind(const wxChar* sz, size_t nStart = npos,

           size_t n = npos) const;
     // as find, but from the end
           size_t n = npos) const;
     // as find, but from the end

-  size_t rfind(char ch, size_t nStart = npos) const;
-#endif
+  size_t rfind(wxChar ch, size_t nStart = npos) const;
+#endif // VC++ 1.5

 
     // find first/last occurence of any character in the set
 
 
     // find first/last occurence of any character in the set
 

-    //
-  size_t find_first_of(const wxString& str, size_t nStart = 0) const;
-    //
-  size_t find_first_of(const char* sz, size_t nStart = 0) const;
+    // as strpbrk() but starts at nStart, returns npos if not found
+  size_t find_first_of(const wxString& 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;

     // same as find(char, size_t)
     // same as find(char, size_t)

-  size_t find_first_of(char c, size_t nStart = 0) const;
-    //
-  size_t find_last_of (const wxString& str, size_t nStart = npos) const;
-    //
-  size_t find_last_of (const char* s, size_t nStart = npos) const;
-    // same as rfind(char, size_t)
-  size_t find_last_of (char c, size_t nStart = npos) const;
+  size_t find_first_of(wxChar 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
+    { return find_last_of(str.c_str(), nStart); }
+    // same as above
+  size_t find_last_of (const wxChar* sz, size_t nStart = npos) const;
+    // same as above
+  size_t find_last_of(wxChar c, size_t nStart = npos) const
+    { return rfind(c, nStart); }

 
     // find first/last occurence of any character not in the set
 
 
     // find first/last occurence of any character not in the set
 

-    //
-  size_t find_first_not_of(const wxString& str, size_t nStart = 0) const;
-    //
-  size_t find_first_not_of(const char* s, size_t nStart = 0) const;
-    //
-  size_t find_first_not_of(char ch, size_t nStart = 0) const;
-    //
-  size_t find_last_not_of(const wxString& str, size_t nStart=npos) const;
-    //
-  size_t find_last_not_of(const char* s, size_t nStart = npos) const;
-    //
-  size_t find_last_not_of(char ch, size_t nStart = npos) const;
+    // as strspn() (starting from nStart), returns npos on failure
+  size_t find_first_not_of(const wxString& 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;
+    // same as above
+  size_t find_first_not_of(wxChar ch, size_t nStart = 0) const;
+    //  as strcspn()
+  size_t find_last_not_of(const wxString& str, size_t nStart = npos) const
+    { return find_first_not_of(str.c_str(), nStart); }
+    // same as above
+  size_t find_last_not_of(const wxChar* sz, size_t nStart = npos) const;
+    // same as above
+  size_t find_last_not_of(wxChar ch, size_t nStart = npos) const;

 
     // All compare functions return -1, 0 or 1 if the [sub]string is less,
     // equal or greater than the compare() argument.
 
     // All compare functions return -1, 0 or 1 if the [sub]string is less,
     // equal or greater than the compare() argument.


@@ -700,18 +979,22 @@ public:
     // just like strcmp()
   int compare(const wxString& str) const { return Cmp(str); }
     // comparison with a substring
     // just like strcmp()
   int compare(const wxString& str) const { return Cmp(str); }
     // comparison with a substring

-  int compare(size_t nStart, size_t nLen, const wxString& str) const;
+  int compare(size_t nStart, size_t nLen, const wxString& str) const
+    { return Mid(nStart, nLen).Cmp(str); }

     // comparison of 2 substrings
   int compare(size_t nStart, size_t nLen,
     // comparison of 2 substrings
   int compare(size_t nStart, size_t nLen,

-              const wxString& str, size_t nStart2, size_t nLen2) const;
+              const wxString& str, size_t nStart2, size_t nLen2) const
+    { return Mid(nStart, nLen).Cmp(str.Mid(nStart2, nLen2)); }

     // just like strcmp()
     // just like strcmp()

-  int compare(const char* sz) const { return Cmp(sz); }
+  int compare(const wxChar* sz) const { return Cmp(sz); }

     // substring comparison with first nCount characters of sz
   int compare(size_t nStart, size_t nLen,
     // substring comparison with first nCount characters of sz
   int compare(size_t nStart, size_t nLen,

-              const char* sz, size_t nCount = npos) const;
+              const wxChar* sz, size_t nCount = npos) const
+    { return Mid(nStart, nLen).Cmp(wxString(sz, nCount)); }

 
   // substring extraction
 
   // substring extraction

-  wxString substr(size_t nStart = 0, size_t nLen = npos) const;
+  wxString substr(size_t nStart = 0, size_t nLen = npos) const
+    { return Mid(nStart, nLen); }

 #endif // wxSTD_STRING_COMPATIBILITY
 };
 
 #endif // wxSTD_STRING_COMPATIBILITY
 };
 


@@ -729,12 +1012,30 @@ public:
 // so the original string may be safely deleted. When a string is retrieved
 // from the array (operator[] or Item() method), a reference is returned.
 // ----------------------------------------------------------------------------
 // so the original string may be safely deleted. When a string is retrieved
 // from the array (operator[] or Item() method), a reference is returned.
 // ----------------------------------------------------------------------------

+

 class WXDLLEXPORT wxArrayString
 {
 public:
 class WXDLLEXPORT wxArrayString
 {
 public:

+  // type of function used by wxArrayString::Sort()
+  typedef int (*CompareFunction)(const wxString& first,
+                                 const wxString& second);
+

   // constructors and destructor
     // default ctor
   // constructors and destructor
     // default ctor

-  wxArrayString();
+  wxArrayString()
+      : m_nSize(0), m_nCount(0), m_pItems(NULL), m_autoSort(FALSE)
+      { Init(FALSE); }
+    // if autoSort is TRUE, the array is always sorted (in alphabetical order)
+    //
+    // NB: the reason for using int and not bool is that like this we can avoid
+    //     using this ctor for implicit conversions from "const char *" (which
+    //     we'd like to be implicitly converted to wxString instead!)
+    //
+    //     of course, using explicit would be even better - if all compilers
+    //     supported it...
+  wxArrayString(int autoSort)
+      : m_nSize(0), m_nCount(0), m_pItems(NULL), m_autoSort(FALSE)
+      { Init(autoSort != 0); }

     // copy ctor
   wxArrayString(const wxArrayString& array);
     // assignment operator
     // copy ctor
   wxArrayString(const wxArrayString& array);
     // assignment operator


@@ -763,107 +1064,207 @@ public:
   // items access (range checking is done in debug version)
     // get item at position uiIndex
   wxString& Item(size_t nIndex) const
   // items access (range checking is done in debug version)
     // get item at position uiIndex
   wxString& Item(size_t nIndex) const

-    { wxASSERT( nIndex < m_nCount ); return *(wxString *)&(m_pItems[nIndex]); }
+    {
+        wxASSERT_MSG( nIndex < m_nCount,
+                      _T("wxArrayString: index out of bounds") );
+
+        return *(wxString *)&(m_pItems[nIndex]);
+    }
+

     // same as Item()
   wxString& operator[](size_t nIndex) const { return Item(nIndex); }
     // get last item
     // same as Item()
   wxString& operator[](size_t nIndex) const { return Item(nIndex); }
     // get last item

-  wxString& Last() const { wxASSERT( !IsEmpty() ); return Item(Count() - 1); }
+  wxString& Last() const
+  {
+      wxASSERT_MSG( !IsEmpty(),
+                    _T("wxArrayString: index out of bounds") );
+      return Item(Count() - 1);
+  }
+
+    // return a wxString[], useful for the controls which
+    // take one in their ctor.  You must delete[] it yourself
+    // once you are done with it.  Will return NULL if the
+    // ArrayString was empty.
+  wxString* GetStringArray() const;

 
   // item management
     // Search the element in the array, starting from the beginning if
     // bFromEnd is FALSE or from end otherwise. If bCase, comparison is case
     // sensitive (default). Returns index of the first item matched or
     // wxNOT_FOUND
 
   // item management
     // Search the element in the array, starting from the beginning if
     // bFromEnd is FALSE or from end otherwise. If bCase, comparison is case
     // sensitive (default). Returns index of the first item matched or
     // wxNOT_FOUND

-  int  Index (const char *sz, bool bCase = TRUE, bool bFromEnd = FALSE) const;
-    // add new element at the end
-  void Add(const wxString& str);
+  int  Index (const wxChar *sz, bool bCase = TRUE, bool bFromEnd = FALSE) const;
+    // add new element at the end (if the array is not sorted), return its
+    // index
+  size_t Add(const wxString& str, size_t nInsert = 1);

     // add new element at given position
     // add new element at given position

-  void Insert(const wxString& str, size_t uiIndex);
+  void Insert(const wxString& str, size_t uiIndex, size_t nInsert = 1);
+    // expand the array to have count elements
+  void SetCount(size_t count);

     // remove first item matching this value
     // remove first item matching this value

-  void Remove(const char *sz);
+  void Remove(const wxChar *sz);

     // remove item by index
     // remove item by index

-  void Remove(size_t nIndex);
-
-  // sort array elements
-  void Sort(bool bCase = TRUE, bool bReverse = FALSE);
+  void Remove(size_t nIndex, size_t nRemove = 1);
+  void RemoveAt(size_t nIndex, size_t nRemove = 1) { Remove(nIndex, nRemove); }
+
+  // sorting
+    // sort array elements in alphabetical order (or reversed alphabetical
+    // order if reverseOrder parameter is TRUE)
+  void Sort(bool reverseOrder = FALSE);
+    // sort array elements using specified comparaison function
+  void Sort(CompareFunction compareFunction);
+
+  // comparison
+    // compare two arrays case sensitively
+  bool operator==(const wxArrayString& a) const;
+    // compare two arrays case sensitively
+  bool operator!=(const wxArrayString& a) const { return !(*this == a); }
+
+protected:
+  void Init(bool autoSort);             // common part of all ctors
+  void Copy(const wxArrayString& src);  // copies the contents of another array

 
 private:
 
 private:

-  void    Grow();     // makes array bigger if needed
-  void    Free();     // free the string stored
+  void Grow(size_t nIncrement = 0);     // makes array bigger if needed
+  void Free();                          // free all the strings stored
+
+  void DoSort();                        // common part of all Sort() variants

 
   size_t  m_nSize,    // current size of the array
           m_nCount;   // current number of elements
 
 
   size_t  m_nSize,    // current size of the array
           m_nCount;   // current number of elements
 

-  char  **m_pItems;   // pointer to data
+  wxChar  **m_pItems; // pointer to data
+
+  bool    m_autoSort; // if TRUE, keep the array always sorted
+};
+
+class WXDLLEXPORT wxSortedArrayString : public wxArrayString
+{
+public:
+  wxSortedArrayString() : wxArrayString(TRUE)
+    { }
+  wxSortedArrayString(const wxArrayString& array) : wxArrayString(TRUE)
+    { Copy(array); }
+};
+
+// ----------------------------------------------------------------------------
+// wxStringBuffer: a tiny class allowing to get a writable pointer into string
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxStringBuffer
+{
+public:
+    wxStringBuffer(wxString& str, size_t lenWanted = 1024)
+        : m_str(str), m_buf(NULL)
+        { m_buf = m_str.GetWriteBuf(lenWanted); }
+
+    ~wxStringBuffer() { m_str.UngetWriteBuf(); }
+
+    operator wxChar*() const { return m_buf; }
+
+private:
+    wxString& m_str;
+    wxChar   *m_buf;
+
+    DECLARE_NO_COPY_CLASS(wxStringBuffer)

 };
 
 // ---------------------------------------------------------------------------
 // wxString comparison functions: operator versions are always case sensitive
 // ---------------------------------------------------------------------------
 };
 
 // ---------------------------------------------------------------------------
 // wxString comparison functions: operator versions are always case sensitive
 // ---------------------------------------------------------------------------

-//
-inline bool operator==(const wxString& s1, const wxString& s2) { return s1.Cmp(s2) == 0; }
-//
-inline bool operator==(const wxString& s1, const char  * s2) { return s1.Cmp(s2) == 0; }
-//
-inline bool operator==(const char  * s1, const wxString& s2) { return s2.Cmp(s1) == 0; }
-//
-inline bool operator!=(const wxString& s1, const wxString& s2) { return s1.Cmp(s2) != 0; }
-//
-inline bool operator!=(const wxString& s1, const char  * s2) { return s1.Cmp(s2) != 0; }
-//
-inline bool operator!=(const char  * s1, const wxString& s2) { return s2.Cmp(s1) != 0; }
-//
-inline bool operator< (const wxString& s1, const wxString& s2) { return s1.Cmp(s2) <  0; }
-//
-inline bool operator< (const wxString& s1, const char  * s2) { return s1.Cmp(s2) <  0; }
-//
-inline bool operator< (const char  * s1, const wxString& s2) { return s2.Cmp(s1) >  0; }
-//
-inline bool operator> (const wxString& s1, const wxString& s2) { return s1.Cmp(s2) >  0; }
-//
-inline bool operator> (const wxString& s1, const char  * s2) { return s1.Cmp(s2) >  0; }
-//
-inline bool operator> (const char  * s1, const wxString& s2) { return s2.Cmp(s1) <  0; }
-//
-inline bool operator<=(const wxString& s1, const wxString& s2) { return s1.Cmp(s2) <= 0; }
-//
-inline bool operator<=(const wxString& s1, const char  * s2) { return s1.Cmp(s2) <= 0; }
-//
-inline bool operator<=(const char  * s1, const wxString& s2) { return s2.Cmp(s1) >= 0; }
-//
-inline bool operator>=(const wxString& s1, const wxString& s2) { return s1.Cmp(s2) >= 0; }
-//
-inline bool operator>=(const wxString& s1, const char  * s2) { return s1.Cmp(s2) >= 0; }
-//
-inline bool operator>=(const char  * s1, const wxString& s2) { return s2.Cmp(s1) <= 0; }
+
+inline bool operator==(const wxString& s1, const wxString& s2)
+    { return (s1.Len() == s2.Len()) && (s1.Cmp(s2) == 0); }
+inline bool operator==(const wxString& s1, const wxChar  * s2)
+    { return s1.Cmp(s2) == 0; }
+inline bool operator==(const wxChar  * s1, const wxString& s2)
+    { return s2.Cmp(s1) == 0; }
+inline bool operator!=(const wxString& s1, const wxString& s2)
+    { return (s1.Len() != s2.Len()) || (s1.Cmp(s2) != 0); }
+inline bool operator!=(const wxString& s1, const wxChar  * s2)
+    { return s1.Cmp(s2) != 0; }
+inline bool operator!=(const wxChar  * s1, const wxString& s2)
+    { return s2.Cmp(s1) != 0; }
+inline bool operator< (const wxString& s1, const wxString& s2)
+    { return s1.Cmp(s2) < 0; }
+inline bool operator< (const wxString& s1, const wxChar  * s2)
+    { return s1.Cmp(s2) <  0; }
+inline bool operator< (const wxChar  * s1, const wxString& s2)
+    { return s2.Cmp(s1) >  0; }
+inline bool operator> (const wxString& s1, const wxString& s2)
+    { return s1.Cmp(s2) >  0; }
+inline bool operator> (const wxString& s1, const wxChar  * s2)
+    { return s1.Cmp(s2) >  0; }
+inline bool operator> (const wxChar  * s1, const wxString& s2)
+    { return s2.Cmp(s1) <  0; }
+inline bool operator<=(const wxString& s1, const wxString& s2)
+    { return s1.Cmp(s2) <= 0; }
+inline bool operator<=(const wxString& s1, const wxChar  * s2)
+    { return s1.Cmp(s2) <= 0; }
+inline bool operator<=(const wxChar  * s1, const wxString& s2)
+    { return s2.Cmp(s1) >= 0; }
+inline bool operator>=(const wxString& s1, const wxString& s2)
+    { return s1.Cmp(s2) >= 0; }
+inline bool operator>=(const wxString& s1, const wxChar  * s2)
+    { return s1.Cmp(s2) >= 0; }
+inline bool operator>=(const wxChar  * s1, const wxString& s2)
+    { return s2.Cmp(s1) <= 0; }
+
+// comparison with char
+inline bool operator==(wxChar c, const wxString& s) { return s.IsSameAs(c); }
+inline bool operator==(const wxString& s, wxChar c) { return s.IsSameAs(c); }
+inline bool operator!=(wxChar c, const wxString& s) { return !s.IsSameAs(c); }
+inline bool operator!=(const wxString& s, wxChar c) { return !s.IsSameAs(c); }
+
+#if wxUSE_UNICODE
+inline bool operator==(const wxString& s1, const wxWCharBuffer& s2)
+    { return (s1.Cmp((const wchar_t *)s2) == 0); }
+inline bool operator==(const wxWCharBuffer& s1, const wxString& s2)
+    { return (s2.Cmp((const wchar_t *)s1) == 0); }
+inline bool operator!=(const wxString& s1, const wxWCharBuffer& s2)
+    { return (s1.Cmp((const wchar_t *)s2) != 0); }
+inline bool operator!=(const wxWCharBuffer& s1, const wxString& s2)
+    { return (s2.Cmp((const wchar_t *)s1) != 0); }
+#else // !wxUSE_UNICODE
+inline bool operator==(const wxString& s1, const wxCharBuffer& s2)
+    { return (s1.Cmp((const char *)s2) == 0); }
+inline bool operator==(const wxCharBuffer& s1, const wxString& s2)
+    { return (s2.Cmp((const char *)s1) == 0); }
+inline bool operator!=(const wxString& s1, const wxCharBuffer& s2)
+    { return (s1.Cmp((const char *)s2) != 0); }
+inline bool operator!=(const wxCharBuffer& s1, const wxString& s2)
+    { return (s2.Cmp((const char *)s1) != 0); }
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE

 
 wxString WXDLLEXPORT operator+(const wxString& string1,  const wxString& string2);
 
 wxString WXDLLEXPORT operator+(const wxString& string1,  const wxString& string2);

-wxString WXDLLEXPORT operator+(const wxString& string, char ch);
-wxString WXDLLEXPORT operator+(char ch, const wxString& string);
-wxString WXDLLEXPORT operator+(const wxString& string, const char *psz);
-wxString WXDLLEXPORT operator+(const char *psz, const wxString& string);
+wxString WXDLLEXPORT operator+(const wxString& string, wxChar ch);
+wxString WXDLLEXPORT operator+(wxChar ch, const wxString& string);
+wxString WXDLLEXPORT operator+(const wxString& string, const wxChar *psz);
+wxString WXDLLEXPORT operator+(const wxChar *psz, const wxString& string);
+#if wxUSE_UNICODE
+inline wxString operator+(const wxString& string, const wxWCharBuffer& buf)
+    { return string + (const wchar_t *)buf; }
+inline wxString operator+(const wxWCharBuffer& buf, const wxString& string)
+    { return (const wchar_t *)buf + string; }
+#else // !wxUSE_UNICODE
+inline wxString operator+(const wxString& string, const wxCharBuffer& buf)
+    { return string + (const char *)buf; }
+inline wxString operator+(const wxCharBuffer& buf, const wxString& string)
+    { return (const char *)buf + string; }
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE

 
 // ---------------------------------------------------------------------------
 // Implementation only from here until the end of file
 // ---------------------------------------------------------------------------
 
 
 // ---------------------------------------------------------------------------
 // Implementation only from here until the end of file
 // ---------------------------------------------------------------------------
 

-#ifdef wxSTD_STRING_COMPATIBILITY
+// don't pollute the library user's name space
+#undef wxASSERT_VALID_INDEX

 
 

-// forward declare iostream
-// Known not to work with wxUSE_IOSTREAMH set to 0, so
-// replacing with includes (on advice of ungod@pasdex.com.au)
-// class WXDLLEXPORT istream;
-#if wxUSE_IOSTREAMH
-// N.B. BC++ doesn't have istream.h, ostream.h
-#include <iostream.h>
-#else
-#include <istream>
-#  ifdef _MSC_VER
-      using namespace std;
-#  endif
-#endif
+#if defined(wxSTD_STRING_COMPATIBILITY) && wxUSE_STD_IOSTREAM
+
+#include "wx/ioswrap.h"

 
 

-WXDLLEXPORT istream& operator>>(istream& is, wxString& str);
+WXDLLEXPORT wxSTD istream& operator>>(wxSTD istream&, wxString&);
+WXDLLEXPORT wxSTD ostream& operator<<(wxSTD ostream&, const wxString&);

 
 #endif  // wxSTD_STRING_COMPATIBILITY
 
 
 #endif  // wxSTD_STRING_COMPATIBILITY