Code and warning cleaning.

[wxWidgets.git] / src / common / strconv.cpp

diff --git a/src/common/strconv.cpp b/src/common/strconv.cpp
index 1a5dbe119a9900f42ba3ad988906cb4f48704c11..ff16d13d00105482188a60e099875734bf205a00 100644 (file)
--- a/src/common/strconv.cpp
+++ b/src/common/strconv.cpp
@@ -5,8 +5,9 @@
 // Modified by:
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Modified by:
 // Created:     29/01/98
 // RCS-ID:      $Id$

-// Copyright:   (c) 1999 Ove Kaaven, Robert Roebling, Vadim Zeitlin, Vaclav Slavik
-// Licence:     wxWindows license
+// Copyright:   (c) 1999 Ove Kaaven, Robert Roebling, Vaclav Slavik
+//              (c) 2000-2003 Vadim Zeitlin
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================


@@ -17,7 +18,7 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

   #pragma implementation "strconv.h"
 #endif
 
   #pragma implementation "strconv.h"
 #endif
 


@@ -33,56 +34,34 @@
     #include "wx/log.h"
 #endif // WX_PRECOMP
 
     #include "wx/log.h"
 #endif // WX_PRECOMP
 

-#ifdef __WXMSW__
-    #include "wx/msw/private.h"
-#endif
-
-#include <errno.h>
-#include <ctype.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "wx/module.h"

 #include "wx/strconv.h"
 
 #include "wx/strconv.h"
 

-// ----------------------------------------------------------------------------
-// globals
-// ----------------------------------------------------------------------------
-

 #if wxUSE_WCHAR_T
 #if wxUSE_WCHAR_T

-    WXDLLEXPORT_DATA(wxMBConv) wxConvLibc;
-    WXDLLEXPORT_DATA(wxCSConv) wxConvLocal((const wxChar *)NULL);
-#else
-    // stand-ins in absence of wchar_t
-    WXDLLEXPORT_DATA(wxMBConv) wxConvLibc, wxConvFile;
-#endif // wxUSE_WCHAR_T

 
 

-WXDLLEXPORT_DATA(wxMBConv *) wxConvCurrent = &wxConvLibc;
+#ifdef __WXMSW__
+    #include "wx/msw/private.h"
+#endif

 
 

-class wxStrConvModule: public wxModule
-{
-public:
-    wxStrConvModule() : wxModule() { }
-    virtual bool OnInit() { return TRUE; }
-    virtual void OnExit()
-    {
-#if wxUSE_WCHAR_T
-        wxConvLocal.Clear();
+#ifdef __WINDOWS__
+    #include "wx/msw/missing.h"

 #endif
 #endif

-    }

 
 

-    DECLARE_DYNAMIC_CLASS(wxStrConvModule)
-};
+#ifndef __WXWINCE__
+#include <errno.h>
+#endif

 
 

-IMPLEMENT_DYNAMIC_CLASS(wxStrConvModule, wxModule)
+#include <ctype.h>
+#include <string.h>
+#include <stdlib.h>

 
 

+#if defined(__WIN32__) && !defined(__WXMICROWIN__)
+    #define wxHAVE_WIN32_MB2WC
+#endif // __WIN32__ but !__WXMICROWIN__

 
 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------
 

-#if wxUSE_WCHAR_T
-

 #ifdef __SALFORDC__
     #include <clib.h>
 #endif
 #ifdef __SALFORDC__
     #include <clib.h>
 #endif


@@ -93,7 +72,15 @@ IMPLEMENT_DYNAMIC_CLASS(wxStrConvModule, wxModule)
 
 #include "wx/encconv.h"
 #include "wx/fontmap.h"
 
 #include "wx/encconv.h"
 #include "wx/fontmap.h"

+#include "wx/utils.h"
+
+#ifdef __WXMAC__
+#include <ATSUnicode.h>
+#include <TextCommon.h>
+#include <TextEncodingConverter.h>

 
 

+#include  "wx/mac/private.h"  // includes mac headers
+#endif

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


@@ -101,12 +88,6 @@ IMPLEMENT_DYNAMIC_CLASS(wxStrConvModule, wxModule)
 #define BSWAP_UCS4(str, len) { unsigned _c; for (_c=0; _c<len; _c++) str[_c]=wxUINT32_SWAP_ALWAYS(str[_c]); }
 #define BSWAP_UTF16(str, len) { unsigned _c; for (_c=0; _c<len; _c++) str[_c]=wxUINT16_SWAP_ALWAYS(str[_c]); }
 
 #define BSWAP_UCS4(str, len) { unsigned _c; for (_c=0; _c<len; _c++) str[_c]=wxUINT32_SWAP_ALWAYS(str[_c]); }
 #define BSWAP_UTF16(str, len) { unsigned _c; for (_c=0; _c<len; _c++) str[_c]=wxUINT16_SWAP_ALWAYS(str[_c]); }
 

-// under Unix SIZEOF_WCHAR_T is defined by configure, but under other platforms
-// it might be not defined - assume the most common value
-#ifndef SIZEOF_WCHAR_T
-    #define SIZEOF_WCHAR_T 2
-#endif // !defined(SIZEOF_WCHAR_T)
-

 #if SIZEOF_WCHAR_T == 4
     #define WC_NAME         "UCS4"
     #define WC_BSWAP         BSWAP_UCS4
 #if SIZEOF_WCHAR_T == 4
     #define WC_NAME         "UCS4"
     #define WC_BSWAP         BSWAP_UCS4


@@ -125,8 +106,8 @@ IMPLEMENT_DYNAMIC_CLASS(wxStrConvModule, wxModule)
       #define WC_NAME_BEST  "UTF-16LE"
     #endif
 #else // sizeof(wchar_t) != 2 nor 4
       #define WC_NAME_BEST  "UTF-16LE"
     #endif
 #else // sizeof(wchar_t) != 2 nor 4

-    // I don't know what to do about this
-    #error "Weird sizeof(wchar_t): please report your platform details to wx-users mailing list"
+    // does this ever happen?
+    #error "Unknown sizeof(wchar_t): please report this to wx-dev@lists.wxwindows.org"

 #endif
 
 // ============================================================================
 #endif
 
 // ============================================================================


@@ -134,16 +115,16 @@ IMPLEMENT_DYNAMIC_CLASS(wxStrConvModule, wxModule)
 // ============================================================================
 
 // ----------------------------------------------------------------------------
 // ============================================================================
 
 // ----------------------------------------------------------------------------

-// UTF-16 en/decoding
+// UTF-16 en/decoding to/from UCS-4

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

-#ifdef WC_UTF16

 
 

-static size_t encode_utf16(wxUint32 input, wchar_t *output)
+static size_t encode_utf16(wxUint32 input, wxUint16 *output)

 {
     if (input<=0xffff)
     {
 {
     if (input<=0xffff)
     {

-        if (output) *output++ = (wchar_t) input;
+        if (output)
+            *output = (wxUint16) input;

         return 1;
     }
     else if (input>=0x110000)
         return 1;
     }
     else if (input>=0x110000)


@@ -154,14 +135,14 @@ static size_t encode_utf16(wxUint32 input, wchar_t *output)
     {
         if (output)
         {
     {
         if (output)
         {

-            *output++ = (wchar_t) ((input >> 10)+0xd7c0);
-            *output++ = (wchar_t) ((input&0x3ff)+0xdc00);
+            *output++ = (wxUint16) ((input >> 10)+0xd7c0);
+            *output = (wxUint16) ((input&0x3ff)+0xdc00);

         }
         return 2;
     }
 }
 
         }
         return 2;
     }
 }
 

-static size_t decode_utf16(const wchar_t* input, wxUint32& output)
+static size_t decode_utf16(const wxUint16* input, wxUint32& output)

 {
     if ((*input<0xd800) || (*input>0xdfff))
     {
 {
     if ((*input<0xd800) || (*input>0xdfff))
     {


@@ -180,117 +161,78 @@ static size_t decode_utf16(const wchar_t* input, wxUint32& output)
     }
 }
 
     }
 }
 

-#endif // WC_UTF16

 
 // ----------------------------------------------------------------------------
 // wxMBConv
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // wxMBConv
 // ----------------------------------------------------------------------------
 

-size_t wxMBConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
-{
-    return wxMB2WC(buf, psz, n);
-}
-
-size_t wxMBConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+wxMBConv::~wxMBConv()

 {
 {

-    return wxWC2MB(buf, psz, n);
+    // nothing to do here

 }
 
 const wxWCharBuffer wxMBConv::cMB2WC(const char *psz) const
 {
 }
 
 const wxWCharBuffer wxMBConv::cMB2WC(const char *psz) const
 {

-    if (psz)
+    if ( psz )

     {
     {

-        size_t nLen = MB2WC((wchar_t *) NULL, psz, 0);
-        if (nLen == (size_t)-1)
-            return wxWCharBuffer((wchar_t *) NULL);
-        wxWCharBuffer buf(nLen);
-        MB2WC((wchar_t *)(const wchar_t *) buf, psz, nLen);
-        return buf;
+        // calculate the length of the buffer needed first
+        size_t nLen = MB2WC(NULL, psz, 0);
+        if ( nLen != (size_t)-1 )
+        {
+            // now do the actual conversion
+            wxWCharBuffer buf(nLen);
+            nLen = MB2WC(buf.data(), psz, nLen + 1); // with the trailing NULL
+            if ( nLen != (size_t)-1 )
+            {
+                return buf;
+            }
+        }

     }
     }

-    else
-        return wxWCharBuffer((wchar_t *) NULL);
+
+    wxWCharBuffer buf((wchar_t *)NULL);
+
+    return buf;

 }
 
 }
 

-const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *psz) const
+const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *pwz) const

 {
 {

-    if (psz)
+    if ( pwz )

     {
     {

-        size_t nLen = WC2MB((char *) NULL, psz, 0);
-        if (nLen == (size_t)-1)
-            return wxCharBuffer((char *) NULL);
-        wxCharBuffer buf(nLen);
-        WC2MB((char *)(const char *) buf, psz, nLen);
-        return buf;
+        size_t nLen = WC2MB(NULL, pwz, 0);
+        if ( nLen != (size_t)-1 )
+        {
+            wxCharBuffer buf(nLen+3);       // space for a wxUint32 trailing zero
+            nLen = WC2MB(buf.data(), pwz, nLen + 4);
+            if ( nLen != (size_t)-1 )
+            {
+                return buf;
+            }
+        }

     }
     }

-    else
-        return wxCharBuffer((char *) NULL);
-}

 
 

-// ----------------------------------------------------------------------------
-// standard file conversion
-// ----------------------------------------------------------------------------
+    wxCharBuffer buf((char *)NULL);

 
 

-WXDLLEXPORT_DATA(wxMBConvFile) wxConvFile;
-
-// just use the libc conversion for now
-size_t wxMBConvFile::MB2WC(wchar_t *buf, const char *psz, size_t n) const
-{
-    return wxMB2WC(buf, psz, n);
-}
-
-size_t wxMBConvFile::WC2MB(char *buf, const wchar_t *psz, size_t n) const
-{
-    return wxWC2MB(buf, psz, n);
+    return buf;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------

-// standard gdk conversion
+// wxMBConvLibc

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

-#ifdef __WXGTK12__
-
-WXDLLEXPORT_DATA(wxMBConvGdk) wxConvGdk;
-
-#include <gdk/gdk.h>
-
-size_t wxMBConvGdk::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+size_t wxMBConvLibc::MB2WC(wchar_t *buf, const char *psz, size_t n) const

 {
 {

-    if (buf)
-    {
-        return gdk_mbstowcs((GdkWChar *)buf, psz, n);
-    }
-    else
-    {
-        GdkWChar *nbuf = new GdkWChar[n=strlen(psz)];
-        size_t len = gdk_mbstowcs(nbuf, psz, n);
-        delete[] nbuf;
-        return len;
-    }
+    return wxMB2WC(buf, psz, n);

 }
 
 }
 

-size_t wxMBConvGdk::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+size_t wxMBConvLibc::WC2MB(char *buf, const wchar_t *psz, size_t n) const

 {
 {

-    char *mbstr = gdk_wcstombs((GdkWChar *)psz);
-    size_t len = mbstr ? strlen(mbstr) : 0;
-    if (buf)
-    {
-        if (len > n)
-            len = n;
-        memcpy(buf, psz, len);
-        if (len < n)
-            buf[len] = 0;
-    }
-    return len;
+    return wxWC2MB(buf, psz, n);

 }
 
 }
 

-#endif // GTK > 1.0
-

 // ----------------------------------------------------------------------------
 // UTF-7
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 // UTF-7
 // ----------------------------------------------------------------------------
 

-WXDLLEXPORT_DATA(wxMBConvUTF7) wxConvUTF7;
-

 #if 0
 static char utf7_setD[]="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
                         "abcdefghijklmnopqrstuvwxyz"
 #if 0
 static char utf7_setD[]="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
                         "abcdefghijklmnopqrstuvwxyz"


@@ -320,8 +262,6 @@ size_t wxMBConvUTF7::WC2MB(char * WXUNUSED(buf),
 // UTF-8
 // ----------------------------------------------------------------------------
 
 // UTF-8
 // ----------------------------------------------------------------------------
 

-WXDLLEXPORT_DATA(wxMBConvUTF8) wxConvUTF8;
-

 static wxUint32 utf8_max[]=
     { 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff, 0xffffffff };
 
 static wxUint32 utf8_max[]=
     { 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff, 0xffffffff };
 


@@ -370,7 +310,8 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const
                     return (size_t)-1;
                 }
 #ifdef WC_UTF16
                     return (size_t)-1;
                 }
 #ifdef WC_UTF16

-                size_t pa = encode_utf16(res, buf);
+                // cast is ok because wchar_t == wxUuint16 if WC_UTF16
+                size_t pa = encode_utf16(res, (wxUint16 *)buf);

                 if (pa == (size_t)-1)
                   return (size_t)-1;
                 if (buf)
                 if (pa == (size_t)-1)
                   return (size_t)-1;
                 if (buf)


@@ -397,7 +338,8 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const
     {
         wxUint32 cc;
 #ifdef WC_UTF16
     {
         wxUint32 cc;
 #ifdef WC_UTF16

-        size_t pa = decode_utf16(psz, cc);
+        // cast is ok for WC_UTF16
+        size_t pa = decode_utf16((const wxUint16 *)psz, cc);

         psz += (pa == (size_t)-1) ? 1 : pa;
 #else
         cc=(*psz++) & 0x7fffffff;
         psz += (pa == (size_t)-1) ? 1 : pa;
 #else
         cc=(*psz++) & 0x7fffffff;


@@ -424,51 +366,477 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const
         }
     }
 
         }
     }
 

-    if (buf && (len<n)) *buf = 0;
+    if (buf && (len<n)) *buf = 0;
+
+    return len;
+}
+
+
+
+
+// ----------------------------------------------------------------------------
+// UTF-16
+// ----------------------------------------------------------------------------
+
+#ifdef WORDS_BIGENDIAN
+    #define wxMBConvUTF16straight wxMBConvUTF16BE
+    #define wxMBConvUTF16swap     wxMBConvUTF16LE
+#else
+    #define wxMBConvUTF16swap     wxMBConvUTF16BE
+    #define wxMBConvUTF16straight wxMBConvUTF16LE
+#endif
+
+
+#ifdef WC_UTF16
+
+// copy 16bit MB to 16bit String
+size_t wxMBConvUTF16straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*(wxUint16*)psz && (!buf || len < n))
+    {
+        if (buf)
+            *buf++ = *(wxUint16*)psz;
+        len++;
+
+        psz += sizeof(wxUint16);
+    }
+    if (buf && len<n)   *buf=0;
+
+    return len;
+}
+
+
+// copy 16bit String to 16bit MB
+size_t wxMBConvUTF16straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*psz && (!buf || len < n))
+    {
+        if (buf)
+        {
+            *(wxUint16*)buf = *psz;
+            buf += sizeof(wxUint16);
+        }
+        len += sizeof(wxUint16);
+        psz++;
+    }
+    if (buf && len<=n-sizeof(wxUint16))   *(wxUint16*)buf=0;
+
+    return len;
+}
+
+
+// swap 16bit MB to 16bit String
+size_t wxMBConvUTF16swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*(wxUint16*)psz && (!buf || len < n))
+    {
+        if (buf)
+        {
+            ((char *)buf)[0] = psz[1];
+            ((char *)buf)[1] = psz[0];
+            buf++;
+        }
+        len++;
+        psz += sizeof(wxUint16);
+    }
+    if (buf && len<n)   *buf=0;
+
+    return len;
+}
+
+
+// swap 16bit MB to 16bit String
+size_t wxMBConvUTF16swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*psz && (!buf || len < n))
+    {
+        if (buf)
+        {
+            *buf++ = ((char*)psz)[1];
+            *buf++ = ((char*)psz)[0];
+        }
+        len += sizeof(wxUint16);
+        psz++;
+    }
+    if (buf && len<=n-sizeof(wxUint16))   *(wxUint16*)buf=0;
+
+    return len;
+}
+
+
+#else // WC_UTF16
+
+
+// copy 16bit MB to 32bit String
+size_t wxMBConvUTF16straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*(wxUint16*)psz && (!buf || len < n))
+    {
+        wxUint32 cc;
+        size_t pa=decode_utf16((wxUint16*)psz, cc);
+        if (pa == (size_t)-1)
+            return pa;
+
+        if (buf)
+            *buf++ = cc;
+        len++;
+        psz += pa * sizeof(wxUint16);
+    }
+    if (buf && len<n)   *buf=0;
+
+    return len;
+}
+
+
+// copy 32bit String to 16bit MB
+size_t wxMBConvUTF16straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*psz && (!buf || len < n))
+    {
+        wxUint16 cc[2];
+        size_t pa=encode_utf16(*psz, cc);
+
+        if (pa == (size_t)-1)
+            return pa;
+
+        if (buf)
+        {
+            *(wxUint16*)buf = cc[0];
+            buf += sizeof(wxUint16);
+            if (pa > 1)
+            {
+                *(wxUint16*)buf = cc[1];
+                buf += sizeof(wxUint16);
+            }
+        }
+
+        len += pa*sizeof(wxUint16);
+        psz++;
+    }
+    if (buf && len<=n-sizeof(wxUint16))   *(wxUint16*)buf=0;
+
+    return len;
+}
+
+
+// swap 16bit MB to 32bit String
+size_t wxMBConvUTF16swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*(wxUint16*)psz && (!buf || len < n))
+    {
+        wxUint32 cc;
+        char tmp[4];
+        tmp[0]=psz[1];  tmp[1]=psz[0];
+        tmp[2]=psz[3];  tmp[3]=psz[2];
+
+        size_t pa=decode_utf16((wxUint16*)tmp, cc);
+        if (pa == (size_t)-1)
+            return pa;
+
+        if (buf)
+            *buf++ = cc;
+
+        len++;
+        psz += pa * sizeof(wxUint16);
+    }
+    if (buf && len<n)   *buf=0;
+
+    return len;
+}
+
+
+// swap 32bit String to 16bit MB
+size_t wxMBConvUTF16swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*psz && (!buf || len < n))
+    {
+        wxUint16 cc[2];
+        size_t pa=encode_utf16(*psz, cc);
+
+        if (pa == (size_t)-1)
+            return pa;
+
+        if (buf)
+        {
+            *buf++ = ((char*)cc)[1];
+            *buf++ = ((char*)cc)[0];
+            if (pa > 1)
+            {
+                *buf++ = ((char*)cc)[3];
+                *buf++ = ((char*)cc)[2];
+            }
+        }
+
+        len += pa*sizeof(wxUint16);
+        psz++;
+    }
+    if (buf && len<=n-sizeof(wxUint16))   *(wxUint16*)buf=0;
+
+    return len;
+}
+
+#endif // WC_UTF16
+
+
+// ----------------------------------------------------------------------------
+// UTF-32
+// ----------------------------------------------------------------------------
+
+#ifdef WORDS_BIGENDIAN
+#define wxMBConvUTF32straight  wxMBConvUTF32BE
+#define wxMBConvUTF32swap      wxMBConvUTF32LE
+#else
+#define wxMBConvUTF32swap      wxMBConvUTF32BE
+#define wxMBConvUTF32straight  wxMBConvUTF32LE
+#endif
+
+
+WXDLLIMPEXP_DATA_BASE(wxMBConvUTF32LE) wxConvUTF32LE;
+WXDLLIMPEXP_DATA_BASE(wxMBConvUTF32BE) wxConvUTF32BE;
+
+
+#ifdef WC_UTF16
+
+// copy 32bit MB to 16bit String
+size_t wxMBConvUTF32straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*(wxUint32*)psz && (!buf || len < n))
+    {
+        wxUint16 cc[2];
+
+        size_t pa=encode_utf16(*(wxUint32*)psz, cc);
+        if (pa == (size_t)-1)
+            return pa;
+
+        if (buf)
+        {
+            *buf++ = cc[0];
+            if (pa > 1)
+                *buf++ = cc[1];
+        }
+        len += pa;
+        psz += sizeof(wxUint32);
+    }
+    if (buf && len<n)   *buf=0;
+
+    return len;
+}
+
+
+// copy 16bit String to 32bit MB
+size_t wxMBConvUTF32straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*psz && (!buf || len < n))
+    {
+        wxUint32 cc;
+
+        // cast is ok for WC_UTF16
+        size_t pa = decode_utf16((const wxUint16 *)psz, cc);
+        if (pa == (size_t)-1)
+            return pa;
+
+        if (buf)
+        {
+            *(wxUint32*)buf = cc;
+            buf += sizeof(wxUint32);
+        }
+        len += sizeof(wxUint32);
+        psz += pa;
+    }
+
+    if (buf && len<=n-sizeof(wxUint32))
+        *(wxUint32*)buf=0;
+
+    return len;
+}
+
+
+
+// swap 32bit MB to 16bit String
+size_t wxMBConvUTF32swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*(wxUint32*)psz && (!buf || len < n))
+    {
+        char tmp[4];
+        tmp[0] = psz[3];   tmp[1] = psz[2];
+        tmp[2] = psz[1];   tmp[3] = psz[0];
+
+
+        wxUint16 cc[2];
+
+        size_t pa=encode_utf16(*(wxUint32*)tmp, cc);
+        if (pa == (size_t)-1)
+            return pa;
+
+        if (buf)
+        {
+            *buf++ = cc[0];
+            if (pa > 1)
+                *buf++ = cc[1];
+        }
+        len += pa;
+        psz += sizeof(wxUint32);
+    }
+
+    if (buf && len<n)
+        *buf=0;
+
+    return len;
+}
+
+
+// swap 16bit String to 32bit MB
+size_t wxMBConvUTF32swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*psz && (!buf || len < n))
+    {
+        char cc[4];
+
+        // cast is ok for WC_UTF16
+        size_t pa=decode_utf16((const wxUint16 *)psz, *(wxUint32*)cc);
+        if (pa == (size_t)-1)
+            return pa;
+
+        if (buf)
+        {
+            *buf++ = cc[3];
+            *buf++ = cc[2];
+            *buf++ = cc[1];
+            *buf++ = cc[0];
+        }
+        len += sizeof(wxUint32);
+        psz += pa;
+    }
+
+    if (buf && len<=n-sizeof(wxUint32))
+        *(wxUint32*)buf=0;
+
+    return len;
+}
+
+#else // WC_UTF16
+
+
+// copy 32bit MB to 32bit String
+size_t wxMBConvUTF32straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*(wxUint32*)psz && (!buf || len < n))
+    {
+        if (buf)
+            *buf++ = *(wxUint32*)psz;
+        len++;
+        psz += sizeof(wxUint32);
+    }
+
+    if (buf && len<n)
+        *buf=0;
+
+    return len;
+}
+
+
+// copy 32bit String to 32bit MB
+size_t wxMBConvUTF32straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*psz && (!buf || len < n))
+    {
+        if (buf)
+        {
+            *(wxUint32*)buf = *psz;
+            buf += sizeof(wxUint32);
+        }
+
+        len += sizeof(wxUint32);
+        psz++;
+    }
+
+    if (buf && len<=n-sizeof(wxUint32))
+        *(wxUint32*)buf=0;
+
+    return len;
+}
+
+
+// swap 32bit MB to 32bit String
+size_t wxMBConvUTF32swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+    size_t len=0;
+
+    while (*(wxUint32*)psz && (!buf || len < n))
+    {
+        if (buf)
+        {
+            ((char *)buf)[0] = psz[3];
+            ((char *)buf)[1] = psz[2];
+            ((char *)buf)[2] = psz[1];
+            ((char *)buf)[3] = psz[0];
+            buf++;
+        }
+        len++;
+        psz += sizeof(wxUint32);
+    }
+
+    if (buf && len<n)
+        *buf=0;
+

     return len;
 }
 
     return len;
 }
 

-// ============================================================================
-// wxCharacterSet and derived classes
-// ============================================================================
-
-// ----------------------------------------------------------------------------
-// wxCharacterSet is the ABC for the classes below
-// ----------------------------------------------------------------------------

 
 

-class wxCharacterSet
+// swap 32bit String to 32bit MB
+size_t wxMBConvUTF32swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const

 {
 {

-public:
-    wxCharacterSet(const wxChar*name) : cname(name) {}
-    virtual ~wxCharacterSet() {}
-    virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) = 0;
-    virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) = 0;
-    virtual bool usable() const = 0;
-public:
-    const wxChar*cname;
-};
+    size_t len=0;

 
 

-// ----------------------------------------------------------------------------
-// ID_CharSet: implementation of wxCharacterSet using an existing wxMBConv
-// ----------------------------------------------------------------------------
+    while (*psz && (!buf || len < n))
+    {
+        if (buf)
+        {
+            *buf++ = ((char *)psz)[3];
+            *buf++ = ((char *)psz)[2];
+            *buf++ = ((char *)psz)[1];
+            *buf++ = ((char *)psz)[0];
+        }
+        len += sizeof(wxUint32);
+        psz++;
+    }

 
 

-class ID_CharSet : public wxCharacterSet
-{
-public:
-    ID_CharSet(const wxChar *name, wxMBConv *cnv)
-        : wxCharacterSet(name), work(cnv) {}
+    if (buf && len<=n-sizeof(wxUint32))
+        *(wxUint32*)buf=0;

 
 

-    size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
-        { return work ? work->MB2WC(buf,psz,n) : (size_t)-1; }
+    return len;
+}

 
 

-    size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
-        { return work ? work->WC2MB(buf,psz,n) : (size_t)-1; }

 
 

-    bool usable() const
-        { return work!=NULL; }
-public:
-    wxMBConv*work;
-};
+#endif // WC_UTF16

 
 
 // ============================================================================
 
 
 // ============================================================================


@@ -494,19 +862,19 @@ public:
 #define ICONV_CHAR_CAST(x)  ((ICONV_CONST char **)(x))
 
 // ----------------------------------------------------------------------------
 #define ICONV_CHAR_CAST(x)  ((ICONV_CONST char **)(x))
 
 // ----------------------------------------------------------------------------

-// IC_CharSet: encapsulates an iconv character set
+// wxMBConv_iconv: encapsulates an iconv character set

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

-class IC_CharSet : public wxCharacterSet
+class wxMBConv_iconv : public wxMBConv

 {
 public:
 {
 public:

-    IC_CharSet(const wxChar *name);
-    virtual ~IC_CharSet();
+    wxMBConv_iconv(const wxChar *name);
+    virtual ~wxMBConv_iconv();

 
 

-    virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n);
-    virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n);
+    virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
+    virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;

 
 

-    bool usable() const
+    bool IsOk() const

         { return (m2w != (iconv_t)-1) && (w2m != (iconv_t)-1); }
 
 protected:
         { return (m2w != (iconv_t)-1) && (w2m != (iconv_t)-1); }
 
 protected:


@@ -516,7 +884,7 @@ protected:
             w2m;
 
 private:
             w2m;
 
 private:

-    // the name (for iconv_open()) of a wide char charset - if none is
+    // the name (for iconv_open()) of a wide char charset -- if none is

     // available on this machine, it will remain NULL
     static const char *ms_wcCharsetName;
 
     // available on this machine, it will remain NULL
     static const char *ms_wcCharsetName;
 


@@ -525,33 +893,37 @@ private:
     static bool ms_wcNeedsSwap;
 };
 
     static bool ms_wcNeedsSwap;
 };
 

-const char *IC_CharSet::ms_wcCharsetName = NULL;
-bool IC_CharSet::ms_wcNeedsSwap = FALSE;
+const char *wxMBConv_iconv::ms_wcCharsetName = NULL;
+bool wxMBConv_iconv::ms_wcNeedsSwap = false;

 
 

-IC_CharSet::IC_CharSet(const wxChar *name)
-          : wxCharacterSet(name)
+wxMBConv_iconv::wxMBConv_iconv(const wxChar *name)

 {
 {

+    // Do it the hard way
+    char cname[100];
+    for (size_t i = 0; i < wxStrlen(name)+1; i++)
+        cname[i] = (char) name[i];
+

     // check for charset that represents wchar_t:
     if (ms_wcCharsetName == NULL)
     {
     // check for charset that represents wchar_t:
     if (ms_wcCharsetName == NULL)
     {

-        ms_wcNeedsSwap = FALSE;
+        ms_wcNeedsSwap = false;

 
         // try charset with explicit bytesex info (e.g. "UCS-4LE"):
         ms_wcCharsetName = WC_NAME_BEST;
 
         // try charset with explicit bytesex info (e.g. "UCS-4LE"):
         ms_wcCharsetName = WC_NAME_BEST;

-        m2w = iconv_open(ms_wcCharsetName, wxConvLibc.cWX2MB(name));
+        m2w = iconv_open(ms_wcCharsetName, cname);

 
         if (m2w == (iconv_t)-1)
         {
             // try charset w/o bytesex info (e.g. "UCS4")
             // and check for bytesex ourselves:
             ms_wcCharsetName = WC_NAME;
 
         if (m2w == (iconv_t)-1)
         {
             // try charset w/o bytesex info (e.g. "UCS4")
             // and check for bytesex ourselves:
             ms_wcCharsetName = WC_NAME;

-            m2w = iconv_open(ms_wcCharsetName, wxConvLibc.cWX2MB(name));
+            m2w = iconv_open(ms_wcCharsetName, cname);

 
             // last bet, try if it knows WCHAR_T pseudo-charset
             if (m2w == (iconv_t)-1)
             {
                 ms_wcCharsetName = "WCHAR_T";
 
             // last bet, try if it knows WCHAR_T pseudo-charset
             if (m2w == (iconv_t)-1)
             {
                 ms_wcCharsetName = "WCHAR_T";

-                m2w = iconv_open(ms_wcCharsetName, wxConvLibc.cWX2MB(name));
+                m2w = iconv_open(ms_wcCharsetName, cname);

             }
 
             if (m2w != (iconv_t)-1)
             }
 
             if (m2w != (iconv_t)-1)


@@ -576,7 +948,7 @@ IC_CharSet::IC_CharSet(const wxChar *name)
                 {
                     ms_wcCharsetName = NULL;
                     wxLogLastError(wxT("iconv"));
                 {
                     ms_wcCharsetName = NULL;
                     wxLogLastError(wxT("iconv"));

-                    wxLogError(_("Convertion to charset '%s' doesn't work."), name);
+                    wxLogError(_("Conversion to charset '%s' doesn't work."), name);

                 }
                 else
                 {
                 }
                 else
                 {


@@ -587,7 +959,7 @@ IC_CharSet::IC_CharSet(const wxChar *name)
             {
                 ms_wcCharsetName = NULL;
 
             {
                 ms_wcCharsetName = NULL;
 

-                // VS: we must not output an error here, since wxWindows will safely
+                // VS: we must not output an error here, since wxWidgets will safely

                 //     fall back to using wxEncodingConverter.
                 wxLogTrace(wxT("strconv"), wxT("Impossible to convert to/from charset '%s' with iconv, falling back to wxEncodingConverter."), name);
                 //wxLogError(
                 //     fall back to using wxEncodingConverter.
                 wxLogTrace(wxT("strconv"), wxT("Impossible to convert to/from charset '%s' with iconv, falling back to wxEncodingConverter."), name);
                 //wxLogError(


@@ -597,13 +969,13 @@ IC_CharSet::IC_CharSet(const wxChar *name)
     }
     else // we already have ms_wcCharsetName
     {
     }
     else // we already have ms_wcCharsetName
     {

-        m2w = iconv_open(ms_wcCharsetName, wxConvLibc.cWX2MB(name));
+        m2w = iconv_open(ms_wcCharsetName, cname);

     }
 
     // NB: don't ever pass NULL to iconv_open(), it may crash!
     if ( ms_wcCharsetName )
     {
     }
 
     // NB: don't ever pass NULL to iconv_open(), it may crash!
     if ( ms_wcCharsetName )
     {

-        w2m = iconv_open(wxConvLibc.cWX2MB(name), ms_wcCharsetName);
+        w2m = iconv_open( cname, ms_wcCharsetName);

     }
     else
     {
     }
     else
     {


@@ -611,7 +983,7 @@ IC_CharSet::IC_CharSet(const wxChar *name)
     }
 }
 
     }
 }
 

-IC_CharSet::~IC_CharSet()
+wxMBConv_iconv::~wxMBConv_iconv()

 {
     if ( m2w != (iconv_t)-1 )
         iconv_close(m2w);
 {
     if ( m2w != (iconv_t)-1 )
         iconv_close(m2w);


@@ -619,7 +991,7 @@ IC_CharSet::~IC_CharSet()
         iconv_close(w2m);
 }
 
         iconv_close(w2m);
 }
 

-size_t IC_CharSet::MB2WC(wchar_t *buf, const char *psz, size_t n)
+size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const

 {
     size_t inbuf = strlen(psz);
     size_t outbuf = n * SIZEOF_WCHAR_T;
 {
     size_t inbuf = strlen(psz);
     size_t outbuf = n * SIZEOF_WCHAR_T;


@@ -641,6 +1013,12 @@ size_t IC_CharSet::MB2WC(wchar_t *buf, const char *psz, size_t n)
             // convert to native endianness
             WC_BSWAP(buf /* _not_ bufPtr */, res)
         }
             // convert to native endianness
             WC_BSWAP(buf /* _not_ bufPtr */, res)
         }

+
+        // NB: iconv was given only strlen(psz) characters on input, and so
+        //     it couldn't convert the trailing zero. Let's do it ourselves
+        //     if there's some room left for it in the output buffer.
+        if (res < n)
+            buf[res] = 0;

     }
     else
     {
     }
     else
     {


@@ -670,13 +1048,9 @@ size_t IC_CharSet::MB2WC(wchar_t *buf, const char *psz, size_t n)
     return res;
 }
 
     return res;
 }
 

-size_t IC_CharSet::WC2MB(char *buf, const wchar_t *psz, size_t n)
+size_t wxMBConv_iconv::WC2MB(char *buf, const wchar_t *psz, size_t n) const

 {
 {

-#if defined(__BORLANDC__) && (__BORLANDC__ > 0x530)
-    size_t inbuf = std::wcslen(psz) * SIZEOF_WCHAR_T;
-#else
-    size_t inbuf = ::wcslen(psz) * SIZEOF_WCHAR_T;
-#endif
+    size_t inbuf = wxWcslen(psz) * SIZEOF_WCHAR_T;

     size_t outbuf = n;
     size_t res, cres;
 
     size_t outbuf = n;
     size_t res, cres;
 


@@ -700,6 +1074,12 @@ size_t IC_CharSet::WC2MB(char *buf, const wchar_t *psz, size_t n)
         cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf );
 
         res = n-outbuf;
         cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf );
 
         res = n-outbuf;

+
+        // NB: iconv was given only wcslen(psz) characters on input, and so
+        //     it couldn't convert the trailing zero. Let's do it ourselves
+        //     if there's some room left for it in the output buffer.
+        if (res < n)
+            buf[0] = 0;

     }
     else
     {
     }
     else
     {


@@ -733,48 +1113,314 @@ size_t IC_CharSet::WC2MB(char *buf, const wchar_t *psz, size_t n)
 
 #endif // HAVE_ICONV
 
 
 #endif // HAVE_ICONV
 

+

 // ============================================================================
 // Win32 conversion classes
 // ============================================================================
 
 // ============================================================================
 // Win32 conversion classes
 // ============================================================================
 

-#if defined(__WIN32__) && !defined(__WXMICROWIN__)
+#ifdef wxHAVE_WIN32_MB2WC

 
 

-extern long wxCharsetToCodepage(const wxChar *charset); // from utils.cpp
+// from utils.cpp
+#if wxUSE_FONTMAP 
+extern WXDLLIMPEXP_BASE long wxCharsetToCodepage(const wxChar *charset);
+extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding);
+#endif

 
 

-class CP_CharSet : public wxCharacterSet
+class wxMBConv_win32 : public wxMBConv

 {
 public:
 {
 public:

-    CP_CharSet(const wxChar* name)
-        : wxCharacterSet(name)
+    wxMBConv_win32()
+    {
+        m_CodePage = CP_ACP;
+    }
+
+#if wxUSE_FONTMAP
+    wxMBConv_win32(const wxChar* name)
+    {
+        m_CodePage = wxCharsetToCodepage(name);
+    }
+
+    wxMBConv_win32(wxFontEncoding encoding)
+    {
+        m_CodePage = wxEncodingToCodepage(encoding);
+    }
+#endif
+
+    size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const
+    {
+        const size_t len = ::MultiByteToWideChar
+                             (
+                                m_CodePage,     // code page
+                                0,              // flags (none)
+                                psz,            // input string
+                                -1,             // its length (NUL-terminated)
+                                buf,            // output string
+                                buf ? n : 0     // size of output buffer
+                             );
+
+        // note that it returns count of written chars for buf != NULL and size
+        // of the needed buffer for buf == NULL so in either case the length of
+        // the string (which never includes the terminating NUL) is one less
+        return len ? len - 1 : (size_t)-1;
+    }
+
+    size_t WC2MB(char *buf, const wchar_t *pwz, size_t n) const
+    {
+        /*
+            we have a problem here: by default, WideCharToMultiByte() may
+            replace characters unrepresentable in the target code page with bad
+            quality approximations such as turning "1/2" symbol (U+00BD) into
+            "1" for the code pages which don't have it and we, obviously, want
+            to avoid this at any price
+        
+            the trouble is that this function does it _silently_, i.e. it won't
+            even tell us whether it did or not... Win98/2000 and higher provide
+            WC_NO_BEST_FIT_CHARS but it doesn't work for the older systems and
+            we have to resort to a round trip, i.e. check that converting back
+            results in the same string -- this is, of course, expensive but
+            otherwise we simply can't be sure to not garble the data.
+         */
+
+        // determine if we can rely on WC_NO_BEST_FIT_CHARS: according to MSDN
+        // it doesn't work with CJK encodings (which we test for rather roughly
+        // here...) nor with UTF-7/8 nor, of course, with Windows versions not
+        // supporting it
+        BOOL usedDef wxDUMMY_INITIALIZE(false),
+             *pUsedDef;
+        int flags;
+        if ( CanUseNoBestFit() && m_CodePage < 50000 )
+        {
+            // it's our lucky day
+            flags = WC_NO_BEST_FIT_CHARS;
+            pUsedDef = &usedDef;
+        }
+        else // old system or unsupported encoding

         {
         {

-            m_CodePage = wxCharsetToCodepage(name);
+            flags = 0;
+            pUsedDef = NULL;

         }
 
         }
 

-    size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
-    {
-        size_t len =
-            MultiByteToWideChar(m_CodePage, 0, psz, -1, buf, buf ? n : 0);
-        //VS: returns # of written chars for buf!=NULL and *size*
-        //    needed buffer for buf==NULL
-        return len ? (buf ? len : len-1) : (size_t)-1;
+        const size_t len = ::WideCharToMultiByte
+                             (
+                                m_CodePage,     // code page
+                                flags,          // either none or no best fit
+                                pwz,            // input string
+                                -1,             // it is (wide) NUL-terminated
+                                buf,            // output buffer
+                                buf ? n : 0,    // and its size
+                                NULL,           // default "replacement" char
+                                pUsedDef        // [out] was it used?
+                             );
+
+        if ( !len )
+        {
+            // function totally failed
+            return (size_t)-1;
+        }
+
+        // if we were really converting, check if we succeeded
+        if ( buf )
+        {
+            if ( flags )
+            {
+                // check if the conversion failed, i.e. if any replacements
+                // were done
+                if ( usedDef )
+                    return (size_t)-1;
+            }
+            else // we must resort to double tripping...
+            {
+                wxWCharBuffer wcBuf(n);
+                if ( MB2WC(wcBuf.data(), buf, n) == (size_t)-1 ||
+                        wcscmp(wcBuf, pwz) != 0 )
+                {
+                    // we didn't obtain the same thing we started from, hence
+                    // the conversion was lossy and we consider that it failed
+                    return (size_t)-1;
+                }
+            }
+        }
+
+        // see the comment above for the reason of "len - 1"
+        return len - 1;

     }
 
     }
 

-    size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
+    bool IsOk() const { return m_CodePage != -1; }
+
+private:
+    static bool CanUseNoBestFit()

     {
     {

-        size_t len = WideCharToMultiByte(m_CodePage, 0, psz, -1, buf,
-                                         buf ? n : 0, NULL, NULL);
-        //VS: returns # of written chars for buf!=NULL and *size*
-        //    needed buffer for buf==NULL
-        return len ? (buf ? len : len-1) : (size_t)-1;
+        static int s_isWin98Or2k = -1;
+
+        if ( s_isWin98Or2k == -1 )
+        {
+            int verMaj, verMin;
+            switch ( wxGetOsVersion(&verMaj, &verMin) )
+            {
+                case wxWIN95:
+                    s_isWin98Or2k = verMaj >= 4 && verMin >= 10;
+                    break;
+
+                case wxWINDOWS_NT:
+                    s_isWin98Or2k = verMaj >= 5;
+                    break;
+
+                default:
+                    // unknown, be conseravtive by default
+                    s_isWin98Or2k = 0;
+            }
+
+            wxASSERT_MSG( s_isWin98Or2k != -1, _T("should be set above") );
+        }
+
+        return s_isWin98Or2k == 1;

     }
 
     }
 

-    bool usable() const
-        { return m_CodePage != -1; }
+    long m_CodePage;
+};
+
+#endif // wxHAVE_WIN32_MB2WC
+
+// ============================================================================
+// Mac conversion classes
+// ============================================================================
+
+#if defined(__WXMAC__) && defined(TARGET_CARBON)

 
 

+class wxMBConv_mac : public wxMBConv
+{

 public:
 public:

-    long m_CodePage;
+    wxMBConv_mac()
+    {
+        Init(CFStringGetSystemEncoding()) ;
+    }
+
+    wxMBConv_mac(const wxChar* name)
+    {
+       Init( wxMacGetSystemEncFromFontEnc(wxFontMapper::Get()->CharsetToEncoding(name, FALSE) ) ) ;
+    }
+
+    wxMBConv_mac(wxFontEncoding encoding)
+    {
+       Init( wxMacGetSystemEncFromFontEnc(encoding) );
+    }
+    
+       ~wxMBConv_mac()
+       {
+           OSStatus status = noErr ;
+           status = TECDisposeConverter(m_MB2WC_converter);
+           status = TECDisposeConverter(m_WC2MB_converter);            
+       }
+       
+    
+       void Init( TextEncodingBase encoding)
+       {
+           OSStatus status = noErr ;
+               m_char_encoding = encoding ;
+               m_unicode_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode16BitFormat) ;
+
+           status = TECCreateConverter(&m_MB2WC_converter,
+                                       m_char_encoding,
+                                       m_unicode_encoding);
+           status = TECCreateConverter(&m_WC2MB_converter,
+                                       m_unicode_encoding,
+                                       m_char_encoding);
+       }
+       
+    size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const
+    {
+           OSStatus status = noErr ;
+           ByteCount byteOutLen ;
+           ByteCount byteInLen = strlen(psz) ;
+               wchar_t *tbuf = NULL ;
+               UniChar* ubuf = NULL ;
+               size_t res = 0 ;
+               
+               if (buf == NULL)
+               {
+                       n = byteInLen ;
+                       tbuf = (wchar_t*) malloc( n * SIZEOF_WCHAR_T) ;
+               }
+           ByteCount byteBufferLen = n * sizeof( UniChar ) ; 
+#if SIZEOF_WCHAR_T == 4
+               ubuf = (UniChar*) malloc( byteBufferLen + 2 ) ;
+#else
+               ubuf = (UniChar*) (buf ? buf : tbuf) ;
+#endif
+           status = TECConvertText(m_MB2WC_converter, (ConstTextPtr) psz , byteInLen, &byteInLen,
+             (TextPtr) ubuf , byteBufferLen, &byteOutLen);
+#if SIZEOF_WCHAR_T == 4
+        // we have to terminate here, because n might be larger for the trailing zero, and if UniChar
+        // is not properly terminated we get random characters at the end
+        ubuf[byteOutLen / sizeof( UniChar ) ] = 0 ;
+               wxMBConvUTF16BE converter ;
+               res = converter.MB2WC( (buf ? buf : tbuf) , (const char*)ubuf , n ) ;
+               free( ubuf ) ;
+#else
+               res = byteOutLen / sizeof( UniChar ) ;
+#endif
+               if ( buf == NULL )
+                       free(tbuf) ;
+
+        if ( buf  && res < n)
+            buf[res] = 0;
+
+               return res ;
+    }
+
+    size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const
+    {          
+           OSStatus status = noErr ;
+           ByteCount byteOutLen ;
+           ByteCount byteInLen = wxWcslen(psz) * SIZEOF_WCHAR_T ;
+
+               char *tbuf = NULL ;
+               
+               if (buf == NULL)
+               {
+                       // worst case
+                       n = byteInLen * 2 ;
+                       tbuf = (char*) malloc( n ) ;
+               }
+
+           ByteCount byteBufferLen = n ;
+               UniChar* ubuf = NULL ;
+#if SIZEOF_WCHAR_T == 4
+               wxMBConvUTF16BE converter ;
+               size_t unicharlen = converter.WC2MB( NULL , psz , 0 ) ;
+               byteInLen = unicharlen ;
+               ubuf = (UniChar*) malloc( byteInLen + 2 ) ;
+               converter.WC2MB( (char*) ubuf , psz, unicharlen + 2 ) ;
+#else
+               ubuf = (UniChar*) psz ;
+#endif
+           status = TECConvertText(m_WC2MB_converter, (ConstTextPtr) ubuf , byteInLen, &byteInLen,
+              (TextPtr) (buf ? buf : tbuf) , byteBufferLen, &byteOutLen);
+#if SIZEOF_WCHAR_T == 4
+               free( ubuf ) ;
+#endif
+               if ( buf == NULL )
+                       free(tbuf) ;
+
+               size_t res = byteOutLen ;
+        if ( buf  && res < n)
+            buf[res] = 0;
+
+               return res ;
+    }
+
+    bool IsOk() const
+        { return m_MB2WC_converter !=  NULL && m_WC2MB_converter != NULL  ; }
+
+private:
+       TECObjectRef m_MB2WC_converter ;
+       TECObjectRef m_WC2MB_converter ;
+       
+       TextEncodingBase m_char_encoding ;
+       TextEncodingBase m_unicode_encoding ;

 };
 };

-#endif // __WIN32__
+
+#endif // defined(__WXMAC__) && defined(TARGET_CARBON)

 
 // ============================================================================
 // wxEncodingConverter based conversion classes
 
 // ============================================================================
 // wxEncodingConverter based conversion classes


@@ -782,22 +1428,36 @@ public:
 
 #if wxUSE_FONTMAP
 
 
 #if wxUSE_FONTMAP
 

-class EC_CharSet : public wxCharacterSet
+class wxMBConv_wxwin : public wxMBConv

 {
 {

+private:
+    void Init()
+    {
+        m_ok = m2w.Init(m_enc, wxFONTENCODING_UNICODE) &&
+               w2m.Init(wxFONTENCODING_UNICODE, m_enc);
+    }
+

 public:
     // temporarily just use wxEncodingConverter stuff,
     // so that it works while a better implementation is built
 public:
     // temporarily just use wxEncodingConverter stuff,
     // so that it works while a better implementation is built

-    EC_CharSet(const wxChar* name) : wxCharacterSet(name),
-                                     enc(wxFONTENCODING_SYSTEM)
+    wxMBConv_wxwin(const wxChar* name)

     {
         if (name)
     {
         if (name)

-            enc = wxTheFontMapper->CharsetToEncoding(name, FALSE);
+            m_enc = wxFontMapper::Get()->CharsetToEncoding(name, false);
+        else
+            m_enc = wxFONTENCODING_SYSTEM;
+
+        Init();
+    }

 
 

-        m_ok = m2w.Init(enc, wxFONTENCODING_UNICODE) &&
-               w2m.Init(wxFONTENCODING_UNICODE, enc);
+    wxMBConv_wxwin(wxFontEncoding enc)
+    {
+        m_enc = enc;
+
+        Init();

     }
 
     }
 

-    size_t MB2WC(wchar_t *buf, const char *psz, size_t WXUNUSED(n))
+    size_t MB2WC(wchar_t *buf, const char *psz, size_t WXUNUSED(n)) const

     {
         size_t inbuf = strlen(psz);
         if (buf)
     {
         size_t inbuf = strlen(psz);
         if (buf)


@@ -805,129 +1465,97 @@ public:
         return inbuf;
     }
 
         return inbuf;
     }
 

-    size_t WC2MB(char *buf, const wchar_t *psz, size_t WXUNUSED(n))
+    size_t WC2MB(char *buf, const wchar_t *psz, size_t WXUNUSED(n)) const

     {
     {

-#if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) ) \
-    || ( defined(__MWERKS__) && defined(__WXMSW__) )
-        size_t inbuf = std::wcslen(psz);
-#else
-        size_t inbuf = ::wcslen(psz);
-#endif
+        const size_t inbuf = wxWcslen(psz);

         if (buf)
             w2m.Convert(psz,buf);
 
         return inbuf;
     }
 
         if (buf)
             w2m.Convert(psz,buf);
 
         return inbuf;
     }
 

-    bool usable() const { return m_ok; }
+    bool IsOk() const { return m_ok; }

 
 public:
 
 public:

-    wxFontEncoding enc;
+    wxFontEncoding m_enc;

     wxEncodingConverter m2w, w2m;
 
     // were we initialized successfully?
     bool m_ok;
     wxEncodingConverter m2w, w2m;
 
     // were we initialized successfully?
     bool m_ok;

+
+    DECLARE_NO_COPY_CLASS(wxMBConv_wxwin)

 };
 
 #endif // wxUSE_FONTMAP
 
 };
 
 #endif // wxUSE_FONTMAP
 

-// ----------------------------------------------------------------------------
-// the function creating the wxCharacterSet for the specified charset on the
-// current system, trying all possibilities
-// ----------------------------------------------------------------------------
+// ============================================================================
+// wxCSConv implementation
+// ============================================================================

 
 

-static wxCharacterSet *wxGetCharacterSet(const wxChar *name)
+void wxCSConv::Init()

 {
 {

-    // check for the special case of ASCII charset
-#if wxUSE_FONTMAP
-    if ( wxTheFontMapper->CharsetToEncoding(name) == wxFONTENCODING_DEFAULT )
-#else // wxUSE_FONTMAP
-    if ( !name )
-#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
-    {
-        // don't convert at all
-        return NULL;
-    }
-
-    // the test above must have taken care of this case
-    wxCHECK_MSG( name, NULL, _T("NULL name must be wxFONTENCODING_DEFAULT") );
+    m_name = NULL;
+    m_convReal =  NULL;
+    m_deferred = true;
+}

 
 

-    wxCharacterSet *cset;
+wxCSConv::wxCSConv(const wxChar *charset)
+{
+    Init();

 
 

-    if ( wxStricmp(name, wxT("UTF8")) == 0 || wxStricmp(name, wxT("UTF-8")) == 0)
-    {
-        cset = new ID_CharSet(name, &wxConvUTF8);
-    }
-    else
+    if ( charset )

     {
     {

-#ifdef HAVE_ICONV
-        cset = new IC_CharSet(name);
-#else // !HAVE_ICONV
-        cset = NULL;
-#endif // HAVE_ICONV/!HAVE_ICONV
+        SetName(charset);

     }
 
     }
 

-    // it can only be NULL in this case
-#ifndef HAVE_ICONV
-    if ( cset )
-#endif // !HAVE_ICONV
+    m_encoding = wxFONTENCODING_SYSTEM;
+}
+
+wxCSConv::wxCSConv(wxFontEncoding encoding)
+{
+    if ( encoding == wxFONTENCODING_MAX || encoding == wxFONTENCODING_DEFAULT )

     {
     {

-        if ( cset->usable() )
-            return cset;
+        wxFAIL_MSG( _T("invalid encoding value in wxCSConv ctor") );

 
 

-        delete cset;
-        cset = NULL;
+        encoding = wxFONTENCODING_SYSTEM;

     }
 
     }
 

-#if defined(__WIN32__) && !defined(__WXMICROWIN__)
-    cset = new CP_CharSet(name);
-    if ( cset->usable() )
-        return cset;
-
-    delete cset;
-    cset = NULL;
-#endif // __WIN32__
-
-#if wxUSE_FONTMAP
-    cset = new EC_CharSet(name);
-    if ( cset->usable() )
-        return cset;
-
-    delete cset;
-    cset = NULL;
-#endif // wxUSE_FONTMAP
-
-    wxLogError(_("Cannot convert from encoding '%s'!"), name);
+    Init();

 
 

-    return NULL;
+    m_encoding = encoding;

 }
 
 }
 

-// ============================================================================
-// wxCSConv implementation
-// ============================================================================
+wxCSConv::~wxCSConv()
+{
+    Clear();
+}

 
 

-wxCSConv::wxCSConv(const wxChar *charset)
+wxCSConv::wxCSConv(const wxCSConv& conv)
+        : wxMBConv()

 {
 {

-    m_name = (wxChar *)NULL;
-    m_cset = (wxCharacterSet *) NULL;
-    m_deferred = TRUE;
+    Init();

 
 

-    SetName(charset);
+    SetName(conv.m_name);
+    m_encoding = conv.m_encoding;

 }
 
 }
 

-wxCSConv::~wxCSConv()
+wxCSConv& wxCSConv::operator=(const wxCSConv& conv)

 {
     Clear();
 {
     Clear();

+
+    SetName(conv.m_name);
+    m_encoding = conv.m_encoding;
+
+    return *this;

 }
 
 void wxCSConv::Clear()
 {
 }
 
 void wxCSConv::Clear()
 {

-    if (m_name)
-        free(m_name);
-    if (m_cset)
-        delete m_cset;
+    free(m_name);
+    delete m_convReal;
+

     m_name = NULL;
     m_name = NULL;

-    m_cset = NULL;
+    m_convReal = NULL;

 }
 
 void wxCSConv::SetName(const wxChar *charset)
 }
 
 void wxCSConv::SetName(const wxChar *charset)


@@ -935,33 +1563,179 @@ void wxCSConv::SetName(const wxChar *charset)
     if (charset)
     {
         m_name = wxStrdup(charset);
     if (charset)
     {
         m_name = wxStrdup(charset);

-        m_deferred = TRUE;
+        m_deferred = true;
+    }
+}
+
+wxMBConv *wxCSConv::DoCreate() const
+{
+    // check for the special case of ASCII or ISO8859-1 charset: as we have
+    // special knowledge of it anyhow, we don't need to create a special
+    // conversion object
+    if ( m_encoding == wxFONTENCODING_ISO8859_1 )
+    {
+        // don't convert at all
+        return NULL;
+    }
+
+    // we trust OS to do conversion better than we can so try external
+    // conversion methods first
+    //
+    // the full order is:
+    //      1. OS conversion (iconv() under Unix or Win32 API)
+    //      2. hard coded conversions for UTF
+    //      3. wxEncodingConverter as fall back
+
+    // step (1)
+#ifdef HAVE_ICONV
+#if !wxUSE_FONTMAP
+    if ( m_name )
+#endif // !wxUSE_FONTMAP
+    {
+        wxString name(m_name);
+
+#if wxUSE_FONTMAP
+        if ( name.empty() )
+            name = wxFontMapper::Get()->GetEncodingName(m_encoding);
+#endif // wxUSE_FONTMAP
+
+        wxMBConv_iconv *conv = new wxMBConv_iconv(name);
+        if ( conv->IsOk() )
+            return conv;
+
+        delete conv;
+    }
+#endif // HAVE_ICONV
+
+#ifdef wxHAVE_WIN32_MB2WC
+    {
+#if wxUSE_FONTMAP
+        wxMBConv_win32 *conv = m_name ? new wxMBConv_win32(m_name)
+                                      : new wxMBConv_win32(m_encoding);
+        if ( conv->IsOk() )
+            return conv;
+
+        delete conv;
+#else
+        return NULL;
+#endif
+    }
+#endif // wxHAVE_WIN32_MB2WC
+#if defined(__WXMAC__) 
+    {
+       if ( m_name || ( m_encoding < wxFONTENCODING_UTF16BE ) )
+       {
+                       
+               wxMBConv_mac *conv = m_name ? new wxMBConv_mac(m_name)
+                                           : new wxMBConv_mac(m_encoding);
+               if ( conv->IsOk() )
+                   return conv;
+
+               delete conv;
+       }
+    }
+#endif
+    // step (2)
+    wxFontEncoding enc = m_encoding;
+#if wxUSE_FONTMAP
+    if ( enc == wxFONTENCODING_SYSTEM && m_name )
+    {
+        // use "false" to suppress interactive dialogs -- we can be called from
+        // anywhere and popping up a dialog from here is the last thing we want to
+        // do
+        enc = wxFontMapper::Get()->CharsetToEncoding(m_name, false);
+    }
+#endif // wxUSE_FONTMAP
+
+    switch ( enc )
+    {
+        case wxFONTENCODING_UTF7:
+             return new wxMBConvUTF7;
+
+        case wxFONTENCODING_UTF8:
+             return new wxMBConvUTF8;
+
+        case wxFONTENCODING_UTF16BE:
+             return new wxMBConvUTF16BE;
+
+        case wxFONTENCODING_UTF16LE:
+             return new wxMBConvUTF16LE;
+
+        case wxFONTENCODING_UTF32BE:
+             return new wxMBConvUTF32BE;
+
+        case wxFONTENCODING_UTF32LE:
+             return new wxMBConvUTF32LE;
+
+        default:
+             // nothing to do but put here to suppress gcc warnings
+             ;
+    }
+
+    // step (3)
+#if wxUSE_FONTMAP
+    {
+        wxMBConv_wxwin *conv = m_name ? new wxMBConv_wxwin(m_name)
+                                      : new wxMBConv_wxwin(m_encoding);
+        if ( conv->IsOk() )
+            return conv;
+
+        delete conv;
+    }
+#endif // wxUSE_FONTMAP
+
+    // NB: This is a hack to prevent deadlock. What could otherwise happen
+    //     in Unicode build: wxConvLocal creation ends up being here
+    //     because of some failure and logs the error. But wxLog will try to
+    //     attach timestamp, for which it will need wxConvLocal (to convert
+    //     time to char* and then wchar_t*), but that fails, tries to log
+    //     error, but wxLog has a (already locked) critical section that
+    //     guards static buffer.
+    static bool alreadyLoggingError = false;
+    if (!alreadyLoggingError)
+    {
+        alreadyLoggingError = true;
+        wxLogError(_("Cannot convert from the charset '%s'!"),
+                   m_name ? m_name
+                      :
+#if wxUSE_FONTMAP
+                         wxFontMapper::GetEncodingDescription(m_encoding).c_str()
+#else // !wxUSE_FONTMAP
+                         wxString::Format(_("encoding %s"), m_encoding).c_str()
+#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
+              );
+        alreadyLoggingError = false;

     }
     }

+
+    return NULL;

 }
 
 }
 

-void wxCSConv::LoadNow()
+void wxCSConv::CreateConvIfNeeded() const

 {
 {

-    if (m_deferred)
+    if ( m_deferred )

     {
     {

-        if ( !m_name )
+        wxCSConv *self = (wxCSConv *)this; // const_cast
+
+#if wxUSE_INTL
+        // if we don't have neither the name nor the encoding, use the default
+        // encoding for this system
+        if ( !m_name && m_encoding == wxFONTENCODING_SYSTEM )

         {
         {

-            wxString name = wxLocale::GetSystemEncodingName();
-            if ( !name.empty() )
-                SetName(name);
+            self->m_name = wxStrdup(wxLocale::GetSystemEncodingName());

         }
         }

+#endif // wxUSE_INTL

 
 

-        // wxGetCharacterSet() complains about NULL name
-        m_cset = m_name ? wxGetCharacterSet(m_name) : NULL;
-        m_deferred = FALSE;
+        self->m_convReal = DoCreate();
+        self->m_deferred = false;

     }
 }
 
 size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
 {
     }
 }
 
 size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
 {

-    ((wxCSConv *)this)->LoadNow(); // discard constness
+    CreateConvIfNeeded();

 
 

-    if (m_cset)
-        return m_cset->MB2WC(buf, psz, n);
+    if (m_convReal)
+        return m_convReal->MB2WC(buf, psz, n);

 
     // latin-1 (direct)
     size_t len = strlen(psz);
 
     // latin-1 (direct)
     size_t len = strlen(psz);


@@ -977,27 +1751,65 @@ size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
 
 size_t wxCSConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const
 {
 
 size_t wxCSConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const
 {

-    ((wxCSConv *)this)->LoadNow(); // discard constness
+    CreateConvIfNeeded();

 
 

-    if (m_cset)
-        return m_cset->WC2MB(buf, psz, n);
+    if (m_convReal)
+        return m_convReal->WC2MB(buf, psz, n);

 
     // latin-1 (direct)
 
     // latin-1 (direct)

-#if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) ) \
-    || ( defined(__MWERKS__) && defined(__WXMSW__) )
-    size_t len=std::wcslen(psz);
-#else
-    size_t len=::wcslen(psz);
-#endif
+    const size_t len = wxWcslen(psz);

     if (buf)
     {
         for (size_t c = 0; c <= len; c++)
     if (buf)
     {
         for (size_t c = 0; c <= len; c++)

-            buf[c] = (psz[c] > 0xff) ? '?' : psz[c];
+        {
+            if (psz[c] > 0xFF)
+                return (size_t)-1;
+            buf[c] = psz[c];
+        }
+    }
+    else
+    {
+        for (size_t c = 0; c <= len; c++)
+        {
+            if (psz[c] > 0xFF)
+                return (size_t)-1;
+        }

     }
 
     return len;
 }
 
     }
 
     return len;
 }
 

-#endif // wxUSE_WCHAR_T
+// ----------------------------------------------------------------------------
+// globals
+// ----------------------------------------------------------------------------
+
+#ifdef __WINDOWS__
+    static wxMBConv_win32 wxConvLibcObj;
+#else
+    static wxMBConvLibc wxConvLibcObj;
+#endif
+
+static wxCSConv wxConvLocalObj(wxFONTENCODING_SYSTEM);
+static wxCSConv wxConvISO8859_1Obj(wxFONTENCODING_ISO8859_1);
+static wxMBConvUTF7 wxConvUTF7Obj;
+static wxMBConvUTF8 wxConvUTF8Obj;
+
+
+WXDLLIMPEXP_DATA_BASE(wxMBConv&) wxConvLibc = wxConvLibcObj;
+WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvLocal = wxConvLocalObj;
+WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvISO8859_1 = wxConvISO8859_1Obj;
+WXDLLIMPEXP_DATA_BASE(wxMBConvUTF7&) wxConvUTF7 = wxConvUTF7Obj;
+WXDLLIMPEXP_DATA_BASE(wxMBConvUTF8&) wxConvUTF8 = wxConvUTF8Obj;
+WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent = &wxConvLibcObj;
+
+#else // !wxUSE_WCHAR_T
+
+// stand-ins in absence of wchar_t
+WXDLLIMPEXP_DATA_BASE(wxMBConv) wxConvLibc,
+                                wxConvISO8859_1,
+                                wxConvLocal,
+                                wxConvUTF8;
+
+#endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T