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Hopefully fixed library names generated by wx-config for OS/2's PM port.
[wxWidgets.git] / src / common / strconv.cpp
diff --git a/src/common/strconv.cpp b/src/common/strconv.cpp
index 011d3280b81992aa177a6e6af4c72b567ce9a98e..aea1e1a18af397c745fed35b26afb06974b988e3 100644 (file)
--- a/src/common/strconv.cpp
+++ b/src/common/strconv.cpp
@@ -1,12 +1,14 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        strconv.cpp
 // Purpose:     Unicode conversion classes
 /////////////////////////////////////////////////////////////////////////////
 // Name:        strconv.cpp
 // Purpose:     Unicode conversion classes
-// Author:      Ove Kaaven, Robert Roebling, Vadim Zeitlin, Vaclav Slavik
+// Author:      Ove Kaaven, Robert Roebling, Vadim Zeitlin, Vaclav Slavik,
+//              Ryan Norton, Fredrik Roubert (UTF7)
 // Modified by:
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1999 Ove Kaaven, Robert Roebling, Vaclav Slavik
 //              (c) 2000-2003 Vadim Zeitlin
 // Modified by:
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1999 Ove Kaaven, Robert Roebling, Vaclav Slavik
 //              (c) 2000-2003 Vadim Zeitlin
+//              (c) 2004 Ryan Norton, Fredrik Roubert
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
@@ -68,6 +70,7 @@
 
 #ifdef HAVE_ICONV
     #include <iconv.h>
 
 #ifdef HAVE_ICONV
     #include <iconv.h>
+    #include "wx/thread.h"
 #endif
 
 #include "wx/encconv.h"
 #endif
 
 #include "wx/encconv.h"
@@ -149,7 +152,7 @@ static size_t decode_utf16(const wxUint16* input, wxUint32& output)
         output = *input;
         return 1;
     }
         output = *input;
         return 1;
     }
-    else if ((input[1]<0xdc00) || (input[1]>=0xdfff))
+    else if ((input[1]<0xdc00) || (input[1]>0xdfff))
     {
         output = *input;
         return (size_t)-1;
     {
         output = *input;
         return (size_t)-1;
@@ -215,6 +218,131 @@ const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *pwz) const
     return buf;
 }
 
     return buf;
 }
 
+const wxWCharBuffer wxMBConv::cMB2WC(const char *szString, size_t nStringLen, size_t* pOutSize) const
+{
+    wxASSERT(pOutSize != NULL);
+
+    const char* szEnd = szString + nStringLen + 1;
+    const char* szPos = szString;
+    const char* szStart = szPos;
+
+    size_t nActualLength = 0;
+    size_t nCurrentSize = nStringLen; //try normal size first (should never resize?)
+
+    wxWCharBuffer theBuffer(nCurrentSize);
+
+    //Convert the string until the length() is reached, continuing the
+    //loop every time a null character is reached
+    while(szPos != szEnd)
+    {
+        wxASSERT(szPos < szEnd); //something is _really_ screwed up if this rings true
+
+        //Get the length of the current (sub)string
+        size_t nLen = MB2WC(NULL, szPos, 0);
+
+        //Invalid conversion?
+        if( nLen == (size_t)-1 )
+        {
+            *pOutSize = 0;
+            theBuffer.data()[0u] = wxT('\0');
+            return theBuffer;
+        }
+
+
+        //Increase the actual length (+1 for current null character)
+        nActualLength += nLen + 1;
+
+        //if buffer too big, realloc the buffer
+        if (nActualLength > (nCurrentSize+1))
+        {
+            wxWCharBuffer theNewBuffer(nCurrentSize << 1);
+            memcpy(theNewBuffer.data(), theBuffer.data(), nCurrentSize * sizeof(wchar_t));
+            theBuffer = theNewBuffer;
+            nCurrentSize <<= 1;
+        }
+
+        //Convert the current (sub)string
+        if ( MB2WC(&theBuffer.data()[szPos - szStart], szPos, nLen + 1) == (size_t)-1 )
+        {
+            *pOutSize = 0;
+            theBuffer.data()[0u] = wxT('\0');
+            return theBuffer;
+        }
+
+        //Increment to next (sub)string
+        //Note that we have to use strlen instead of nLen here
+        //because XX2XX gives us the size of the output buffer,
+        //which is not necessarily the length of the string
+        szPos += strlen(szPos) + 1;
+    }
+
+    //success - return actual length and the buffer
+    *pOutSize = nActualLength;
+    return theBuffer;
+}
+
+const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *szString, size_t nStringLen, size_t* pOutSize) const
+{
+    wxASSERT(pOutSize != NULL);
+
+    const wchar_t* szEnd = szString + nStringLen + 1;
+    const wchar_t* szPos = szString;
+    const wchar_t* szStart = szPos;
+
+    size_t nActualLength = 0;
+    size_t nCurrentSize = nStringLen << 2; //try * 4 first
+
+    wxCharBuffer theBuffer(nCurrentSize);
+
+    //Convert the string until the length() is reached, continuing the
+    //loop every time a null character is reached
+    while(szPos != szEnd)
+    {
+        wxASSERT(szPos < szEnd); //something is _really_ screwed up if this rings true
+
+        //Get the length of the current (sub)string
+        size_t nLen = WC2MB(NULL, szPos, 0);
+
+        //Invalid conversion?
+        if( nLen == (size_t)-1 )
+        {
+            *pOutSize = 0;
+            theBuffer.data()[0u] = wxT('\0');
+            return theBuffer;
+        }
+
+        //Increase the actual length (+1 for current null character)
+        nActualLength += nLen + 1;
+
+        //if buffer too big, realloc the buffer
+        if (nActualLength > (nCurrentSize+1))
+        {
+            wxCharBuffer theNewBuffer(nCurrentSize << 1);
+            memcpy(theNewBuffer.data(), theBuffer.data(), nCurrentSize);
+            theBuffer = theNewBuffer;
+            nCurrentSize <<= 1;
+        }
+
+        //Convert the current (sub)string
+        if(WC2MB(&theBuffer.data()[szPos - szStart], szPos, nLen + 1) == (size_t)-1 )
+        {
+            *pOutSize = 0;
+            theBuffer.data()[0u] = wxT('\0');
+            return theBuffer;
+        }
+
+        //Increment to next (sub)string
+        //Note that we have to use wxWcslen instead of nLen here
+        //because XX2XX gives us the size of the output buffer,
+        //which is not necessarily the length of the string
+        szPos += wxWcslen(szPos) + 1;
+    }
+
+    //success - return actual length and the buffer
+    *pOutSize = nActualLength;
+    return theBuffer;
+}
+
 // ----------------------------------------------------------------------------
 // wxMBConvLibc
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxMBConvLibc
 // ----------------------------------------------------------------------------
@@ -229,33 +357,241 @@ size_t wxMBConvLibc::WC2MB(char *buf, const wchar_t *psz, size_t n) const
     return wxWC2MB(buf, psz, n);
 }
 
     return wxWC2MB(buf, psz, n);
 }
 
+#ifdef __UNIX__
+
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
-// UTF-7
+// wxConvBrokenFileNames 
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 
-#if 0
-static char utf7_setD[]="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-                        "abcdefghijklmnopqrstuvwxyz"
-                        "0123456789'(),-./:?";
-static char utf7_setO[]="!\"#$%&*;<=>@[]^_`{|}";
-static char utf7_setB[]="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-                        "abcdefghijklmnopqrstuvwxyz"
-                        "0123456789+/";
+wxConvBrokenFileNames::wxConvBrokenFileNames(const wxChar *charset)
+{
+    if ( !charset || wxStricmp(charset, _T("UTF-8")) == 0
+                  || wxStricmp(charset, _T("UTF8")) == 0  )
+        m_conv = new wxMBConvUTF8(wxMBConvUTF8::MAP_INVALID_UTF8_TO_OCTAL);
+    else
+        m_conv = new wxCSConv(charset);
+}
+
+size_t
+wxConvBrokenFileNames::MB2WC(wchar_t *outputBuf,
+                             const char *psz,
+                             size_t outputSize) const
+{
+    return m_conv->MB2WC( outputBuf, psz, outputSize );
+}
+
+size_t
+wxConvBrokenFileNames::WC2MB(char *outputBuf,
+                             const wchar_t *psz,
+                             size_t outputSize) const
+{
+    return m_conv->WC2MB( outputBuf, psz, outputSize );
+}
+
 #endif
 
 #endif
 
-// TODO: write actual implementations of UTF-7 here
-size_t wxMBConvUTF7::MB2WC(wchar_t * WXUNUSED(buf),
-                           const char * WXUNUSED(psz),
-                           size_t WXUNUSED(n)) const
+// ----------------------------------------------------------------------------
+// UTF-7
+// ----------------------------------------------------------------------------
+
+// Implementation (C) 2004 Fredrik Roubert
+
+//
+// BASE64 decoding table
+//
+static const unsigned char utf7unb64[] =
+{
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0x3e, 0xff, 0xff, 0xff, 0x3f,
+    0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
+    0x3c, 0x3d, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
+    0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
+    0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16,
+    0x17, 0x18, 0x19, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20,
+    0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
+    0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
+    0x31, 0x32, 0x33, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+
+size_t wxMBConvUTF7::MB2WC(wchar_t *buf, const char *psz, size_t n) const
 {
 {
-  return 0;
+    size_t len = 0;
+
+    while (*psz && ((!buf) || (len < n)))
+    {
+        unsigned char cc = *psz++;
+        if (cc != '+')
+        {
+            // plain ASCII char
+            if (buf)
+                *buf++ = cc;
+            len++;
+        }
+        else if (*psz == '-')
+        {
+            // encoded plus sign
+            if (buf)
+                *buf++ = cc;
+            len++;
+            psz++;
+        }
+        else
+        {
+            // BASE64 encoded string
+            bool lsb;
+            unsigned char c;
+            unsigned int d, l;
+            for (lsb = false, d = 0, l = 0;
+                (cc = utf7unb64[(unsigned char)*psz]) != 0xff; psz++)
+            {
+                d <<= 6;
+                d += cc;
+                for (l += 6; l >= 8; lsb = !lsb)
+                {
+                    c = (unsigned char)((d >> (l -= 8)) % 256);
+                    if (lsb)
+                    {
+                        if (buf)
+                            *buf++ |= c;
+                        len ++;
+                    }
+                    else
+                        if (buf)
+                            *buf = (wchar_t)(c << 8);
+                }
+            }
+            if (*psz == '-')
+                psz++;
+        }
+    }
+    if (buf && (len < n))
+        *buf = 0;
+    return len;
 }
 
 }
 
-size_t wxMBConvUTF7::WC2MB(char * WXUNUSED(buf),
-                           const wchar_t * WXUNUSED(psz),
-                           size_t WXUNUSED(n)) const
+//
+// BASE64 encoding table
+//
+static const unsigned char utf7enb64[] =
 {
 {
-  return 0;
+    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
+    'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
+    'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
+    'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
+    'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
+    'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
+    'w', 'x', 'y', 'z', '0', '1', '2', '3',
+    '4', '5', '6', '7', '8', '9', '+', '/'
+};
+
+//
+// UTF-7 encoding table
+//
+// 0 - Set D (directly encoded characters)
+// 1 - Set O (optional direct characters)
+// 2 - whitespace characters (optional)
+// 3 - special characters
+//
+static const unsigned char utf7encode[128] =
+{
+    3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 3, 3, 2, 3, 3,
+    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+    2, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 3, 0, 0, 0, 3,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0,
+    1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 1, 1, 1,
+    1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 3, 3
+};
+
+size_t wxMBConvUTF7::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+
+
+    size_t len = 0;
+
+    while (*psz && ((!buf) || (len < n)))
+    {
+        wchar_t cc = *psz++;
+        if (cc < 0x80 && utf7encode[cc] < 1)
+        {
+            // plain ASCII char
+            if (buf)
+                *buf++ = (char)cc;
+            len++;
+        }
+#ifndef WC_UTF16
+        else if (((wxUint32)cc) > 0xffff)
+        {
+            // no surrogate pair generation (yet?)
+            return (size_t)-1;
+        }
+#endif
+        else
+        {
+            if (buf)
+                *buf++ = '+';
+            len++;
+            if (cc != '+')
+            {
+                // BASE64 encode string
+                unsigned int lsb, d, l;
+                for (d = 0, l = 0;; psz++)
+                {
+                    for (lsb = 0; lsb < 2; lsb ++)
+                    {
+                        d <<= 8;
+                        d += lsb ? cc & 0xff : (cc & 0xff00) >> 8;
+
+                        for (l += 8; l >= 6; )
+                        {
+                            l -= 6;
+                            if (buf)
+                                *buf++ = utf7enb64[(d >> l) % 64];
+                            len++;
+                        }
+                    }
+                    cc = *psz;
+                    if (!(cc) || (cc < 0x80 && utf7encode[cc] < 1))
+                        break;
+                }
+                if (l != 0)
+                {
+                    if (buf)
+                        *buf++ = utf7enb64[((d % 16) << (6 - l)) % 64];
+                    len++;
+                }
+            }
+            if (buf)
+                *buf++ = '-';
+            len++;
+        }
+    }
+    if (buf && (len < n))
+        *buf = 0;
+    return len;
 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------
@@ -265,12 +601,19 @@ size_t wxMBConvUTF7::WC2MB(char * WXUNUSED(buf),
 static wxUint32 utf8_max[]=
     { 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff, 0xffffffff };
 
 static wxUint32 utf8_max[]=
     { 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff, 0xffffffff };
 
+// boundaries of the private use area we use to (temporarily) remap invalid
+// characters invalid in a UTF-8 encoded string
+const wxUint32 wxUnicodePUA = 0x100000;
+const wxUint32 wxUnicodePUAEnd = wxUnicodePUA + 256;
+
 size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const
 {
     size_t len = 0;
 
     while (*psz && ((!buf) || (len < n)))
     {
 size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const
 {
     size_t len = 0;
 
     while (*psz && ((!buf) || (len < n)))
     {
+        const char *opsz = psz;
+        bool invalid = false;
         unsigned char cc = *psz++, fc = cc;
         unsigned cnt;
         for (cnt = 0; fc & 0x80; cnt++)
         unsigned char cc = *psz++, fc = cc;
         unsigned cnt;
         for (cnt = 0; fc & 0x80; cnt++)
@@ -281,6 +624,15 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const
             if (buf)
                 *buf++ = cc;
             len++;
             if (buf)
                 *buf++ = cc;
             len++;
+
+            // escape the escape character for octal escapes
+            if ((m_options & MAP_INVALID_UTF8_TO_OCTAL)
+                    && cc == '\\' && (!buf || len < n))
+            {
+                if (buf)
+                    *buf++ = cc;
+                len++;
+            }
         }
         else
         {
         }
         else
         {
@@ -288,7 +640,7 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const
             if (!cnt)
             {
                 // invalid UTF-8 sequence
             if (!cnt)
             {
                 // invalid UTF-8 sequence
-                return (size_t)-1;
+                invalid = true;
             }
             else
             {
             }
             else
             {
@@ -296,32 +648,93 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const
                 wxUint32 res = cc & (0x3f >> cnt);
                 while (cnt--)
                 {
                 wxUint32 res = cc & (0x3f >> cnt);
                 while (cnt--)
                 {
-                    cc = *psz++;
+                    cc = *psz;
                     if ((cc & 0xC0) != 0x80)
                     {
                         // invalid UTF-8 sequence
                     if ((cc & 0xC0) != 0x80)
                     {
                         // invalid UTF-8 sequence
-                        return (size_t)-1;
+                        invalid = true;
+                        break;
                     }
                     }
+                    psz++;
                     res = (res << 6) | (cc & 0x3f);
                 }
                     res = (res << 6) | (cc & 0x3f);
                 }
-                if (res <= utf8_max[ocnt])
+                if (invalid || res <= utf8_max[ocnt])
                 {
                     // illegal UTF-8 encoding
                 {
                     // illegal UTF-8 encoding
-                    return (size_t)-1;
+                    invalid = true;
+                }
+                else if ((m_options & MAP_INVALID_UTF8_TO_PUA) &&
+                        res >= wxUnicodePUA && res < wxUnicodePUAEnd)
+                {
+                    // if one of our PUA characters turns up externally
+                    // it must also be treated as an illegal sequence
+                    // (a bit like you have to escape an escape character)
+                    invalid = true;
                 }
                 }
+                else
+                {
 #ifdef WC_UTF16
 #ifdef WC_UTF16
-                // 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)
-                    buf += pa;
-                len += pa;
+                    // cast is ok because wchar_t == wxUuint16 if WC_UTF16
+                    size_t pa = encode_utf16(res, (wxUint16 *)buf);
+                    if (pa == (size_t)-1)
+                    {
+                        invalid = true;
+                    }
+                    else
+                    {
+                        if (buf)
+                            buf += pa;
+                        len += pa;
+                    }
 #else // !WC_UTF16
 #else // !WC_UTF16
-                if (buf)
-                    *buf++ = res;
-                len++;
+                    if (buf)
+                        *buf++ = res;
+                    len++;
 #endif // WC_UTF16/!WC_UTF16
 #endif // WC_UTF16/!WC_UTF16
+                }
+            }
+            if (invalid)
+            {
+                if (m_options & MAP_INVALID_UTF8_TO_PUA)
+                {
+                    while (opsz < psz && (!buf || len < n))
+                    {
+#ifdef WC_UTF16
+                        // cast is ok because wchar_t == wxUuint16 if WC_UTF16
+                        size_t pa = encode_utf16((unsigned char)*opsz + wxUnicodePUA, (wxUint16 *)buf);
+                        wxASSERT(pa != (size_t)-1);
+                        if (buf)
+                            buf += pa;
+                        opsz++;
+                        len += pa;
+#else
+                        if (buf)
+                            *buf++ = wxUnicodePUA + (unsigned char)*opsz;
+                        opsz++;
+                        len++;
+#endif
+                    }
+                }
+                else if (m_options & MAP_INVALID_UTF8_TO_OCTAL)
+                {
+                    while (opsz < psz && (!buf || len < n))
+                    {
+                        if ( buf && len + 3 < n )
+                        {
+                            unsigned char n = *opsz;
+                            *buf++ = L'\\';
+                            *buf++ = (wchar_t)( L'0' + n / 0100 );
+                            *buf++ = (wchar_t)( L'0' + (n % 0100) / 010 );
+                            *buf++ = (wchar_t)( L'0' + n % 010 );
+                        }
+                        opsz++;
+                        len += 4;
+                    }
+                }
+                else // MAP_INVALID_UTF8_NOT
+                {
+                    return (size_t)-1;
+                }
             }
         }
     }
             }
         }
     }
@@ -330,6 +743,11 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const
     return len;
 }
 
     return len;
 }
 
+static inline bool isoctal(wchar_t wch)
+{
+    return L'0' <= wch && wch <= L'7';
+}
+
 size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const
 {
     size_t len = 0;
 size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const
 {
     size_t len = 0;
@@ -344,36 +762,67 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const
 #else
         cc=(*psz++) & 0x7fffffff;
 #endif
 #else
         cc=(*psz++) & 0x7fffffff;
 #endif
-        unsigned cnt;
-        for (cnt = 0; cc > utf8_max[cnt]; cnt++) {}
-        if (!cnt)
+
+        if ( (m_options & MAP_INVALID_UTF8_TO_PUA)
+                && cc >= wxUnicodePUA && cc < wxUnicodePUAEnd )
+        {
+            if (buf)
+                *buf++ = (char)(cc - wxUnicodePUA);
+            len++;
+        }
+        else if ( (m_options & MAP_INVALID_UTF8_TO_OCTAL)
+                    && cc == L'\\' && psz[0] == L'\\' )
         {
         {
-            // plain ASCII char
             if (buf)
             if (buf)
-                *buf++ = (char) cc;
+                *buf++ = (char)cc;
+            psz++;
             len++;
         }
             len++;
         }
+        else if ( (m_options & MAP_INVALID_UTF8_TO_OCTAL) &&
+                    cc == L'\\' &&
+                        isoctal(psz[0]) && isoctal(psz[1]) && isoctal(psz[2]) )
+        {
+            if (buf)
+            {
+                *buf++ = (char) ((psz[0] - L'0')*0100 +
+                                 (psz[1] - L'0')*010 +
+                                 (psz[2] - L'0'));
+            }
 
 
+            psz += 3;
+            len++;
+        }
         else
         {
         else
         {
-            len += cnt + 1;
-            if (buf)
+            unsigned cnt;
+            for (cnt = 0; cc > utf8_max[cnt]; cnt++) {}
+            if (!cnt)
             {
             {
-                *buf++ = (char) ((-128 >> cnt) | ((cc >> (cnt * 6)) & (0x3f >> cnt)));
-                while (cnt--)
-                    *buf++ = (char) (0x80 | ((cc >> (cnt * 6)) & 0x3f));
+                // plain ASCII char
+                if (buf)
+                    *buf++ = (char) cc;
+                len++;
+            }
+
+            else
+            {
+                len += cnt + 1;
+                if (buf)
+                {
+                    *buf++ = (char) ((-128 >> cnt) | ((cc >> (cnt * 6)) & (0x3f >> cnt)));
+                    while (cnt--)
+                        *buf++ = (char) (0x80 | ((cc >> (cnt * 6)) & 0x3f));
+                }
             }
         }
     }
 
             }
         }
     }
 
-    if (buf && (len<n)) *buf = 0;
+    if (buf && (len<n))
+        *buf = 0;
 
     return len;
 }
 
 
     return len;
 }
 
-
-
-
 // ----------------------------------------------------------------------------
 // UTF-16
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // UTF-16
 // ----------------------------------------------------------------------------
@@ -845,12 +1294,13 @@ size_t wxMBConvUTF32swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
 
 #ifdef HAVE_ICONV
 
 
 #ifdef HAVE_ICONV
 
-// VS: glibc 2.1.3 is broken in that iconv() conversion to/from UCS4 fails with E2BIG
-//     if output buffer is _exactly_ as big as needed. Such case is (unless there's
-//     yet another bug in glibc) the only case when iconv() returns with (size_t)-1
-//     (which means error) and says there are 0 bytes left in the input buffer --
-//     when _real_ error occurs, bytes-left-in-input buffer is non-zero. Hence,
-//     this alternative test for iconv() failure.
+// VS: glibc 2.1.3 is broken in that iconv() conversion to/from UCS4 fails with
+//     E2BIG if output buffer is _exactly_ as big as needed. Such case is
+//     (unless there's yet another bug in glibc) the only case when iconv()
+//     returns with (size_t)-1 (which means error) and says there are 0 bytes
+//     left in the input buffer -- when _real_ error occurs,
+//     bytes-left-in-input buffer is non-zero. Hence, this alternative test for
+//     iconv() failure.
 //     [This bug does not appear in glibc 2.2.]
 #if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ <= 1
 #define ICONV_FAILED(cres, bufLeft) ((cres == (size_t)-1) && \
 //     [This bug does not appear in glibc 2.2.]
 #if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ <= 1
 #define ICONV_FAILED(cres, bufLeft) ((cres == (size_t)-1) && \
@@ -882,6 +1332,10 @@ protected:
     // the other direction
     iconv_t m2w,
             w2m;
     // the other direction
     iconv_t m2w,
             w2m;
+#if wxUSE_THREADS
+    // guards access to m2w and w2m objects
+    wxMutex m_iconvMutex;
+#endif
 
 private:
     // the name (for iconv_open()) of a wide char charset -- if none is
 
 private:
     // the name (for iconv_open()) of a wide char charset -- if none is
@@ -993,6 +1447,16 @@ wxMBConv_iconv::~wxMBConv_iconv()
 
 size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
 {
 
 size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
 {
+#if wxUSE_THREADS
+    // NB: iconv() is MT-safe, but each thread must use it's own iconv_t handle.
+    //     Unfortunately there is a couple of global wxCSConv objects such as
+    //     wxConvLocal that are used all over wx code, so we have to make sure
+    //     the handle is used by at most one thread at the time. Otherwise
+    //     only a few wx classes would be safe to use from non-main threads
+    //     as MB<->WC conversion would fail "randomly".
+    wxMutexLocker lock(wxConstCast(this, wxMBConv_iconv)->m_iconvMutex);
+#endif
+
     size_t inbuf = strlen(psz);
     size_t outbuf = n * SIZEOF_WCHAR_T;
     size_t res, cres;
     size_t inbuf = strlen(psz);
     size_t outbuf = n * SIZEOF_WCHAR_T;
     size_t res, cres;
@@ -1050,6 +1514,11 @@ size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
 
 size_t wxMBConv_iconv::WC2MB(char *buf, const wchar_t *psz, size_t n) const
 {
 
 size_t wxMBConv_iconv::WC2MB(char *buf, const wchar_t *psz, size_t n) const
 {
+#if wxUSE_THREADS
+    // NB: explained in MB2WC
+    wxMutexLocker lock(wxConstCast(this, wxMBConv_iconv)->m_iconvMutex);
+#endif
+
     size_t inbuf = wxWcslen(psz) * SIZEOF_WCHAR_T;
     size_t outbuf = n;
     size_t res, cres;
     size_t inbuf = wxWcslen(psz) * SIZEOF_WCHAR_T;
     size_t outbuf = n;
     size_t res, cres;
@@ -1153,10 +1622,20 @@ public:
         // and break the library itself, e.g. wxTextInputStream::NextChar()
         // wouldn't work if reading an incomplete MB char didn't result in an
         // error
         // and break the library itself, e.g. wxTextInputStream::NextChar()
         // wouldn't work if reading an incomplete MB char didn't result in an
         // error
+        //
+        // note however that using MB_ERR_INVALID_CHARS with CP_UTF7 results in
+        // an error (tested under Windows Server 2003) and apparently it is
+        // done on purpose, i.e. the function accepts any input in this case
+        // and although I'd prefer to return error on ill-formed output, our
+        // own wxMBConvUTF7 doesn't detect errors (e.g. lone "+" which is
+        // explicitly ill-formed according to RFC 2152) neither so we don't
+        // even have any fallback here...
+        int flags = m_CodePage == CP_UTF7 ? 0 : MB_ERR_INVALID_CHARS;
+
         const size_t len = ::MultiByteToWideChar
                              (
                                 m_CodePage,     // code page
         const size_t len = ::MultiByteToWideChar
                              (
                                 m_CodePage,     // code page
-                                MB_ERR_INVALID_CHARS, // flags: fall on error
+                                flags,          // flags: fall on error
                                 psz,            // input string
                                 -1,             // its length (NUL-terminated)
                                 buf,            // output string
                                 psz,            // input string
                                 -1,             // its length (NUL-terminated)
                                 buf,            // output string
@@ -1301,14 +1780,10 @@ private:
 
 CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding)
 {
 
 CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding)
 {
-    CFStringEncoding enc = 0 ;
+    CFStringEncoding enc = kCFStringEncodingInvalidId ;
     if ( encoding == wxFONTENCODING_DEFAULT )
     {
     if ( encoding == wxFONTENCODING_DEFAULT )
     {
-#if wxUSE_GUI
-        encoding = wxFont::GetDefaultEncoding() ;
-#else
-        encoding = wxLocale::GetSystemEncoding() ;
-#endif
+        enc = CFStringGetSystemEncoding();
     }
     else switch( encoding)
     {
     }
     else switch( encoding)
     {
@@ -1396,7 +1871,6 @@ CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding)
         case wxFONTENCODING_CP950 :
             enc = kCFStringEncodingDOSChineseTrad;
             break ;
         case wxFONTENCODING_CP950 :
             enc = kCFStringEncodingDOSChineseTrad;
             break ;
-
         case wxFONTENCODING_CP1250 :
             enc = kCFStringEncodingWindowsLatin2;
             break ;
         case wxFONTENCODING_CP1250 :
             enc = kCFStringEncodingWindowsLatin2;
             break ;
@@ -1421,9 +1895,10 @@ CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding)
         case wxFONTENCODING_CP1257 :
             enc = kCFStringEncodingWindowsBalticRim;
             break ;
         case wxFONTENCODING_CP1257 :
             enc = kCFStringEncodingWindowsBalticRim;
             break ;
-        case wxFONTENCODING_UTF7 :
-            enc = kCFStringEncodingNonLossyASCII ;
-            break ;
+//   This only really encodes to UTF7 (if that) evidently
+//        case wxFONTENCODING_UTF7 :
+//            enc = kCFStringEncodingNonLossyASCII ;
+//            break ;
         case wxFONTENCODING_UTF8 :
             enc = kCFStringEncodingUTF8 ;
             break ;
         case wxFONTENCODING_UTF8 :
             enc = kCFStringEncodingUTF8 ;
             break ;
@@ -1560,245 +2035,6 @@ CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding)
     return enc ;
 }
 
     return enc ;
 }
 
-wxFontEncoding wxFontEncFromCFStringEnc(CFStringEncoding encoding)
-{
-    wxFontEncoding enc = wxFONTENCODING_DEFAULT ;
-
-    switch( encoding)
-    {
-        case kCFStringEncodingISOLatin1  :
-            enc = wxFONTENCODING_ISO8859_1 ;
-            break ;
-        case kCFStringEncodingISOLatin2 :
-            enc = wxFONTENCODING_ISO8859_2;
-            break ;
-        case kCFStringEncodingISOLatin3 :
-            enc = wxFONTENCODING_ISO8859_3 ;
-            break ;
-        case kCFStringEncodingISOLatin4 :
-            enc = wxFONTENCODING_ISO8859_4;
-            break ;
-        case kCFStringEncodingISOLatinCyrillic :
-            enc = wxFONTENCODING_ISO8859_5;
-            break ;
-        case kCFStringEncodingISOLatinArabic :
-            enc = wxFONTENCODING_ISO8859_6;
-            break ;
-        case kCFStringEncodingISOLatinGreek :
-            enc = wxFONTENCODING_ISO8859_7;
-            break ;
-        case kCFStringEncodingISOLatinHebrew :
-            enc = wxFONTENCODING_ISO8859_8;
-            break ;
-        case kCFStringEncodingISOLatin5 :
-            enc = wxFONTENCODING_ISO8859_9;
-            break ;
-        case kCFStringEncodingISOLatin6 :
-            enc = wxFONTENCODING_ISO8859_10;
-            break ;
-        case kCFStringEncodingISOLatin7 :
-            enc = wxFONTENCODING_ISO8859_13;
-            break ;
-        case kCFStringEncodingISOLatin8 :
-            enc = wxFONTENCODING_ISO8859_14;
-            break ;
-        case kCFStringEncodingISOLatin9 :
-            enc =wxFONTENCODING_ISO8859_15 ;
-            break ;
-
-        case kCFStringEncodingKOI8_R :
-            enc = wxFONTENCODING_KOI8;
-            break ;
-
-//      case  :
-//          enc = wxFONTENCODING_BULGARIAN;
-//          break ;
-
-        case kCFStringEncodingDOSLatinUS :
-            enc = wxFONTENCODING_CP437;
-            break ;
-        case kCFStringEncodingDOSLatin1 :
-            enc = wxFONTENCODING_CP850;
-            break ;
-        case kCFStringEncodingDOSLatin2 :
-            enc =wxFONTENCODING_CP852 ;
-            break ;
-        case kCFStringEncodingDOSCyrillic :
-            enc = wxFONTENCODING_CP855;
-            break ;
-        case kCFStringEncodingDOSRussian :
-            enc = wxFONTENCODING_CP866;
-            break ;
-        case kCFStringEncodingDOSThai :
-            enc =wxFONTENCODING_CP874 ;
-            break ;
-        case kCFStringEncodingDOSJapanese :
-            enc = wxFONTENCODING_CP932;
-            break ;
-        case kCFStringEncodingDOSChineseSimplif :
-            enc = wxFONTENCODING_CP936;
-            break ;
-        case kCFStringEncodingDOSKorean :
-            enc = wxFONTENCODING_CP949;
-            break ;
-        case kCFStringEncodingDOSChineseTrad :
-            enc = wxFONTENCODING_CP950;
-            break ;
-
-        case kCFStringEncodingWindowsLatin2 :
-            enc = wxFONTENCODING_CP1250;
-            break ;
-        case kCFStringEncodingWindowsCyrillic :
-            enc = wxFONTENCODING_CP1251;
-            break ;
-        case kCFStringEncodingWindowsLatin1 :
-            enc = wxFONTENCODING_CP1252;
-            break ;
-        case kCFStringEncodingWindowsGreek :
-            enc = wxFONTENCODING_CP1253;
-            break ;
-        case kCFStringEncodingWindowsLatin5 :
-            enc = wxFONTENCODING_CP1254;
-            break ;
-        case kCFStringEncodingWindowsHebrew :
-            enc = wxFONTENCODING_CP1255;
-            break ;
-        case kCFStringEncodingWindowsArabic :
-            enc = wxFONTENCODING_CP1256;
-            break ;
-        case kCFStringEncodingWindowsBalticRim :
-            enc =wxFONTENCODING_CP1257 ;
-            break ;
-        case kCFStringEncodingEUC_JP :
-            enc = wxFONTENCODING_EUC_JP;
-            break ;
-        case kCFStringEncodingUnicode :
-            enc = wxFONTENCODING_UTF16;
-            break;
-        case kCFStringEncodingMacRoman :
-            enc = wxFONTENCODING_MACROMAN ;
-            break ;
-        case kCFStringEncodingMacJapanese :
-            enc = wxFONTENCODING_MACJAPANESE ;
-            break ;
-        case kCFStringEncodingMacChineseTrad :
-            enc = wxFONTENCODING_MACCHINESETRAD ;
-            break ;
-        case kCFStringEncodingMacKorean :
-            enc = wxFONTENCODING_MACKOREAN ;
-            break ;
-        case kCFStringEncodingMacArabic :
-            enc =wxFONTENCODING_MACARABIC ;
-            break ;
-        case kCFStringEncodingMacHebrew :
-            enc = wxFONTENCODING_MACHEBREW ;
-            break ;
-        case kCFStringEncodingMacGreek :
-            enc = wxFONTENCODING_MACGREEK ;
-            break ;
-        case kCFStringEncodingMacCyrillic :
-            enc = wxFONTENCODING_MACCYRILLIC ;
-            break ;
-        case kCFStringEncodingMacDevanagari :
-            enc = wxFONTENCODING_MACDEVANAGARI ;
-            break ;
-        case kCFStringEncodingMacGurmukhi :
-            enc = wxFONTENCODING_MACGURMUKHI ;
-            break ;
-        case kCFStringEncodingMacGujarati :
-            enc = wxFONTENCODING_MACGUJARATI ;
-            break ;
-        case kCFStringEncodingMacOriya :
-            enc =wxFONTENCODING_MACORIYA ;
-            break ;
-        case kCFStringEncodingMacBengali :
-            enc =wxFONTENCODING_MACBENGALI ;
-            break ;
-        case kCFStringEncodingMacTamil :
-            enc = wxFONTENCODING_MACTAMIL ;
-            break ;
-        case kCFStringEncodingMacTelugu :
-            enc = wxFONTENCODING_MACTELUGU ;
-            break ;
-        case kCFStringEncodingMacKannada :
-            enc = wxFONTENCODING_MACKANNADA ;
-            break ;
-        case kCFStringEncodingMacMalayalam :
-            enc = wxFONTENCODING_MACMALAJALAM ;
-            break ;
-        case kCFStringEncodingMacSinhalese :
-            enc = wxFONTENCODING_MACSINHALESE ;
-            break ;
-        case kCFStringEncodingMacBurmese :
-            enc = wxFONTENCODING_MACBURMESE ;
-            break ;
-        case kCFStringEncodingMacKhmer :
-            enc = wxFONTENCODING_MACKHMER ;
-            break ;
-        case kCFStringEncodingMacThai :
-            enc = wxFONTENCODING_MACTHAI ;
-            break ;
-        case kCFStringEncodingMacLaotian :
-            enc = wxFONTENCODING_MACLAOTIAN ;
-            break ;
-        case kCFStringEncodingMacGeorgian :
-            enc = wxFONTENCODING_MACGEORGIAN ;
-            break ;
-        case kCFStringEncodingMacArmenian :
-            enc = wxFONTENCODING_MACARMENIAN ;
-            break ;
-        case kCFStringEncodingMacChineseSimp :
-            enc = wxFONTENCODING_MACCHINESESIMP ;
-            break ;
-        case kCFStringEncodingMacTibetan :
-            enc = wxFONTENCODING_MACTIBETAN ;
-            break ;
-        case kCFStringEncodingMacMongolian :
-            enc = wxFONTENCODING_MACMONGOLIAN ;
-            break ;
-        case kCFStringEncodingMacEthiopic :
-            enc = wxFONTENCODING_MACETHIOPIC ;
-            break ;
-        case kCFStringEncodingMacCentralEurRoman:
-            enc = wxFONTENCODING_MACCENTRALEUR  ;
-            break ;
-        case kCFStringEncodingMacVietnamese:
-            enc = wxFONTENCODING_MACVIATNAMESE  ;
-            break ;
-        case kCFStringEncodingMacExtArabic :
-            enc = wxFONTENCODING_MACARABICEXT ;
-            break ;
-        case kCFStringEncodingMacSymbol :
-            enc = wxFONTENCODING_MACSYMBOL ;
-            break ;
-        case kCFStringEncodingMacDingbats :
-            enc = wxFONTENCODING_MACDINGBATS ;
-            break ;
-        case kCFStringEncodingMacTurkish :
-            enc = wxFONTENCODING_MACTURKISH ;
-            break ;
-        case kCFStringEncodingMacCroatian :
-            enc = wxFONTENCODING_MACCROATIAN ;
-            break ;
-        case kCFStringEncodingMacIcelandic :
-            enc = wxFONTENCODING_MACICELANDIC ;
-            break ;
-        case kCFStringEncodingMacRomanian :
-            enc = wxFONTENCODING_MACROMANIAN ;
-            break ;
-        case kCFStringEncodingMacCeltic :
-            enc = wxFONTENCODING_MACCELTIC ;
-            break ;
-        case kCFStringEncodingMacGaelic :
-            enc = wxFONTENCODING_MACGAELIC ;
-            break ;
-//        case kCFStringEncodingMacKeyboardGlyphs :
-//            enc = wxFONTENCODING_MACKEYBOARD ;
-//            break ;
-    } ;
-    return enc ;
-}
-
 class wxMBConv_cocoa : public wxMBConv
 {
 public:
 class wxMBConv_cocoa : public wxMBConv
 {
 public:
@@ -1807,10 +2043,12 @@ public:
         Init(CFStringGetSystemEncoding()) ;
     }
 
         Init(CFStringGetSystemEncoding()) ;
     }
 
+#if wxUSE_FONTMAP
     wxMBConv_cocoa(const wxChar* name)
     {
     wxMBConv_cocoa(const wxChar* name)
     {
-        Init( wxCFStringEncFromFontEnc(wxFontMapper::Get()->CharsetToEncoding(name, false) ) ) ;
+        Init( wxCFStringEncFromFontEnc(wxFontMapperBase::Get()->CharsetToEncoding(name, false) ) ) ;
     }
     }
+#endif
 
     wxMBConv_cocoa(wxFontEncoding encoding)
     {
 
     wxMBConv_cocoa(wxFontEncoding encoding)
     {
@@ -1823,160 +2061,118 @@ public:
 
     void Init( CFStringEncoding encoding)
     {
 
     void Init( CFStringEncoding encoding)
     {
-        m_char_encoding = encoding ;
-        m_unicode_encoding = kCFStringEncodingUnicode;
+        m_encoding = encoding ;
     }
 
     size_t MB2WC(wchar_t * szOut, const char * szUnConv, size_t nOutSize) const
     {
         wxASSERT(szUnConv);
 
     }
 
     size_t MB2WC(wchar_t * szOut, const char * szUnConv, size_t nOutSize) const
     {
         wxASSERT(szUnConv);
 
-        size_t nBufSize = strlen(szUnConv) + 1;
-        size_t nRealOutSize;
-
-        UniChar* szUniCharBuffer    = (UniChar*) szOut;
-        wchar_t* szConvBuffer       = szOut;
-
-        if (szConvBuffer == NULL && nOutSize != 0)
-        {
-            szConvBuffer = new wchar_t[nOutSize] ;
-        }
-
-#if SIZEOF_WCHAR_T == 4
-        szUniCharBuffer = new UniChar[nOutSize];
-#endif
-
-        CFDataRef theData = CFDataCreateWithBytesNoCopy (
-                                            NULL,     //allocator
-                                            (const UInt8*)szUnConv,
-                                            nBufSize - 1,
-                                            NULL      //deallocator
-                                            );
-
-        wxASSERT(theData);
-
-        CFStringRef theString = CFStringCreateFromExternalRepresentation (
-                                                NULL,
-                                                theData,
-                                                m_char_encoding
+        CFStringRef theString = CFStringCreateWithBytes (
+                                                NULL, //the allocator
+                                                (const UInt8*)szUnConv,
+                                                strlen(szUnConv),
+                                                m_encoding,
+                                                false //no BOM/external representation
                                                 );
 
         wxASSERT(theString);
 
                                                 );
 
         wxASSERT(theString);
 
-        if (nOutSize == 0)
+        size_t nOutLength = CFStringGetLength(theString);
+
+        if (szOut == NULL)
         {
         {
-            nRealOutSize = CFStringGetLength(theString) + 1;
             CFRelease(theString);
             CFRelease(theString);
-            return nRealOutSize - 1;
+            return nOutLength;
         }
 
         }
 
-        CFRange theRange = { 0, CFStringGetLength(theString) };
-
-        CFStringGetCharacters(theString, theRange, szUniCharBuffer);
+        CFRange theRange = { 0, nOutSize };
 
 
+#if SIZEOF_WCHAR_T == 4
+        UniChar* szUniCharBuffer = new UniChar[nOutSize];
+#endif
 
 
-        nRealOutSize = (CFStringGetLength(theString) + 1);
+        CFStringGetCharacters(theString, theRange, szUniCharBuffer);
 
         CFRelease(theString);
 
 
         CFRelease(theString);
 
-        szUniCharBuffer[nRealOutSize-1] = '\0' ;
+        szUniCharBuffer[nOutLength] = '\0' ;
 
 #if SIZEOF_WCHAR_T == 4
         wxMBConvUTF16 converter ;
 
 #if SIZEOF_WCHAR_T == 4
         wxMBConvUTF16 converter ;
-        converter.MB2WC(szConvBuffer  , (const char*)szUniCharBuffer , nRealOutSize ) ;
+        converter.MB2WC(szOut, (const char*)szUniCharBuffer , nOutSize ) ;
         delete[] szUniCharBuffer;
 #endif
         delete[] szUniCharBuffer;
 #endif
-        if ( szOut == NULL )
-            delete [] szConvBuffer;
 
 
-        return nRealOutSize ;
+        return nOutLength;
     }
 
     size_t WC2MB(char *szOut, const wchar_t *szUnConv, size_t nOutSize) const
     {
     }
 
     size_t WC2MB(char *szOut, const wchar_t *szUnConv, size_t nOutSize) const
     {
-        size_t nBufSize = wxWcslen(szUnConv) + 1;
+        wxASSERT(szUnConv);
+
         size_t nRealOutSize;
         size_t nRealOutSize;
-        char* szBuffer = szOut;
+        size_t nBufSize = wxWcslen(szUnConv);
         UniChar* szUniBuffer = (UniChar*) szUnConv;
 
         UniChar* szUniBuffer = (UniChar*) szUnConv;
 
-        if (szOut == NULL)
-        {
-            // worst case
-            nRealOutSize = ((nBufSize - 1) << 1)+1 ;
-            szBuffer = new char[ nRealOutSize ] ;
-        }
-        else
-            nRealOutSize = nOutSize;
-
 #if SIZEOF_WCHAR_T == 4
 #if SIZEOF_WCHAR_T == 4
-        wxMBConvUTF16BE converter ;
+        wxMBConvUTF16 converter ;
         nBufSize = converter.WC2MB( NULL , szUnConv , 0 );
         szUniBuffer = new UniChar[ (nBufSize / sizeof(UniChar)) + 1] ;
         converter.WC2MB( (char*) szUniBuffer , szUnConv, nBufSize + sizeof(UniChar)) ;
         nBufSize /= sizeof(UniChar);
         nBufSize = converter.WC2MB( NULL , szUnConv , 0 );
         szUniBuffer = new UniChar[ (nBufSize / sizeof(UniChar)) + 1] ;
         converter.WC2MB( (char*) szUniBuffer , szUnConv, nBufSize + sizeof(UniChar)) ;
         nBufSize /= sizeof(UniChar);
-        ++nBufSize;
 #endif
 
         CFStringRef theString = CFStringCreateWithCharactersNoCopy(
                                 NULL, //allocator
                                 szUniBuffer,
                                 nBufSize,
 #endif
 
         CFStringRef theString = CFStringCreateWithCharactersNoCopy(
                                 NULL, //allocator
                                 szUniBuffer,
                                 nBufSize,
-                                NULL //deallocator
+                                kCFAllocatorNull //deallocator - we want to deallocate it ourselves
                             );
 
         wxASSERT(theString);
 
         //Note that CER puts a BOM when converting to unicode
                             );
 
         wxASSERT(theString);
 
         //Note that CER puts a BOM when converting to unicode
-        //so we may want to check and use getchars instead in that case
-        CFDataRef theData = CFStringCreateExternalRepresentation(
-                                NULL, //allocator
-                                theString,
-                                m_char_encoding,
-                                0 //what to put in characters that can't be converted -
-                                    //0 tells CFString to return NULL if it meets such a character
-                        );
-
-        if(!theData)
-            return (size_t)-1;
-
-        CFRelease(theString);
-
-        nRealOutSize = CFDataGetLength(theData);
-
-        if ( szOut == NULL )
-            delete[] szBuffer;
+        //so we  check and use getchars instead in that case
+        if (m_encoding == kCFStringEncodingUnicode)
+        {
+            if (szOut != NULL)
+                CFStringGetCharacters(theString, CFRangeMake(0, nOutSize - 1), (UniChar*) szOut);
 
 
-        if(nOutSize == 0)
+            nRealOutSize = CFStringGetLength(theString) + 1;
+        }
+        else
         {
         {
-//TODO: This gets flagged as a non-malloced address by the debugger...
-//#if SIZEOF_WCHAR_T == 4
-//        delete[] szUniBuffer;
-//#endif
-            CFRelease(theData);
-            return nRealOutSize - 1;
+            CFStringGetBytes(
+                theString,
+                CFRangeMake(0, CFStringGetLength(theString)),
+                m_encoding,
+                0, //what to put in characters that can't be converted -
+                    //0 tells CFString to return NULL if it meets such a character
+                false, //not an external representation
+                (UInt8*) szOut,
+                nOutSize,
+                (CFIndex*) &nRealOutSize
+                        );
         }
 
         }
 
-        CFRange theRange = {0, CFDataGetLength(theData) };
-        CFDataGetBytes(theData, theRange, (UInt8*) szBuffer);
+        CFRelease(theString);
 
 
-        CFRelease(theData);
+#if SIZEOF_WCHAR_T == 4
+        delete[] szUniBuffer;
+#endif
 
 
-//TODO: This gets flagged as a non-malloced address by the debugger...
-//#if SIZEOF_WCHAR_T == 4
-//        delete[] szUniBuffer;
-//#endif
         return  nRealOutSize - 1;
     }
 
     bool IsOk() const
     {
         return  nRealOutSize - 1;
     }
 
     bool IsOk() const
     {
-        //TODO: check for invalid en/de/coding
-        return true;
+        return m_encoding != kCFStringEncodingInvalidId &&
+              CFStringIsEncodingAvailable(m_encoding);
     }
 
 private:
     }
 
 private:
-    CFStringEncoding m_char_encoding ;
-    CFStringEncoding m_unicode_encoding ;
+    CFStringEncoding m_encoding ;
 };
 
 #endif // defined(__WXCOCOA__)
 };
 
 #endif // defined(__WXCOCOA__)
@@ -1995,10 +2191,12 @@ public:
         Init(CFStringGetSystemEncoding()) ;
     }
 
         Init(CFStringGetSystemEncoding()) ;
     }
 
+#if wxUSE_FONTMAP
     wxMBConv_mac(const wxChar* name)
     {
     wxMBConv_mac(const wxChar* name)
     {
-        Init( wxMacGetSystemEncFromFontEnc(wxFontMapper::Get()->CharsetToEncoding(name, false) ) ) ;
+        Init( wxMacGetSystemEncFromFontEnc(wxFontMapperBase::Get()->CharsetToEncoding(name, false) ) ) ;
     }
     }
+#endif
 
     wxMBConv_mac(wxFontEncoding encoding)
     {
 
     wxMBConv_mac(wxFontEncoding encoding)
     {
@@ -2038,7 +2236,8 @@ public:
 
         if (buf == NULL)
         {
 
         if (buf == NULL)
         {
-            n = byteInLen ;
+            //apple specs say at least 32
+            n = wxMax( 32 , byteInLen ) ;
             tbuf = (wchar_t*) malloc( n * SIZEOF_WCHAR_T) ;
         }
         ByteCount byteBufferLen = n * sizeof( UniChar ) ;
             tbuf = (wchar_t*) malloc( n * SIZEOF_WCHAR_T) ;
         }
         ByteCount byteBufferLen = n * sizeof( UniChar ) ;
@@ -2053,7 +2252,7 @@ public:
         // 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 ;
         // 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 ;
+        wxMBConvUTF16 converter ;
         res = converter.MB2WC( (buf ? buf : tbuf) , (const char*)ubuf , n ) ;
         free( ubuf ) ;
 #else
         res = converter.MB2WC( (buf ? buf : tbuf) , (const char*)ubuf , n ) ;
         free( ubuf ) ;
 #else
@@ -2078,15 +2277,15 @@ public:
 
         if (buf == NULL)
         {
 
         if (buf == NULL)
         {
-            // worst case
-            n = byteInLen * 2 ;
+            //apple specs say at least 32
+            n = wxMax( 32 , ((byteInLen / SIZEOF_WCHAR_T) * 8) + SIZEOF_WCHAR_T );
             tbuf = (char*) malloc( n ) ;
         }
 
         ByteCount byteBufferLen = n ;
         UniChar* ubuf = NULL ;
 #if SIZEOF_WCHAR_T == 4
             tbuf = (char*) malloc( n ) ;
         }
 
         ByteCount byteBufferLen = n ;
         UniChar* ubuf = NULL ;
 #if SIZEOF_WCHAR_T == 4
-        wxMBConvUTF16BE converter ;
+        wxMBConvUTF16 converter ;
         size_t unicharlen = converter.WC2MB( NULL , psz , 0 ) ;
         byteInLen = unicharlen ;
         ubuf = (UniChar*) malloc( byteInLen + 2 ) ;
         size_t unicharlen = converter.WC2MB( NULL , psz , 0 ) ;
         byteInLen = unicharlen ;
         ubuf = (UniChar*) malloc( byteInLen + 2 ) ;
@@ -2104,8 +2303,23 @@ public:
 
         size_t res = byteOutLen ;
         if ( buf  && res < n)
 
         size_t res = byteOutLen ;
         if ( buf  && res < n)
+        {
             buf[res] = 0;
 
             buf[res] = 0;
 
+            //we need to double-trip to verify it didn't insert any ? in place
+            //of bogus characters
+            wxWCharBuffer wcBuf(n);
+            size_t pszlen = wxWcslen(psz);
+            if ( MB2WC(wcBuf.data(), buf, n) == (size_t)-1 ||
+                        wxWcslen(wcBuf) != pszlen ||
+                        memcmp(wcBuf, psz, pszlen * sizeof(wchar_t)) != 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;
+            }
+        }
+
         return res ;
     }
 
         return res ;
     }
 
@@ -2143,7 +2357,7 @@ public:
     wxMBConv_wxwin(const wxChar* name)
     {
         if (name)
     wxMBConv_wxwin(const wxChar* name)
     {
         if (name)
-            m_enc = wxFontMapper::Get()->CharsetToEncoding(name, false);
+            m_enc = wxFontMapperBase::Get()->CharsetToEncoding(name, false);
         else
             m_enc = wxFONTENCODING_SYSTEM;
 
         else
             m_enc = wxFONTENCODING_SYSTEM;
 
@@ -2161,7 +2375,10 @@ public:
     {
         size_t inbuf = strlen(psz);
         if (buf)
     {
         size_t inbuf = strlen(psz);
         if (buf)
-            m2w.Convert(psz,buf);
+        {
+            if (!m2w.Convert(psz,buf))
+                return (size_t)-1;
+        }
         return inbuf;
     }
 
         return inbuf;
     }
 
@@ -2169,7 +2386,10 @@ public:
     {
         const size_t inbuf = wxWcslen(psz);
         if (buf)
     {
         const size_t inbuf = wxWcslen(psz);
         if (buf)
-            w2m.Convert(psz,buf);
+        {
+            if (!w2m.Convert(psz,buf))
+                return (size_t)-1;
+        }
 
         return inbuf;
     }
 
         return inbuf;
     }
@@ -2296,7 +2516,7 @@ wxMBConv *wxCSConv::DoCreate() const
 
 #if wxUSE_FONTMAP
         if ( name.empty() )
 
 #if wxUSE_FONTMAP
         if ( name.empty() )
-            name = wxFontMapper::Get()->GetEncodingName(m_encoding);
+            name = wxFontMapperBase::Get()->GetEncodingName(m_encoding);
 #endif // wxUSE_FONTMAP
 
         wxMBConv_iconv *conv = new wxMBConv_iconv(name);
 #endif // wxUSE_FONTMAP
 
         wxMBConv_iconv *conv = new wxMBConv_iconv(name);
@@ -2323,11 +2543,17 @@ wxMBConv *wxCSConv::DoCreate() const
 #endif // wxHAVE_WIN32_MB2WC
 #if defined(__WXMAC__)
     {
 #endif // wxHAVE_WIN32_MB2WC
 #if defined(__WXMAC__)
     {
-        if ( m_name || ( m_encoding < wxFONTENCODING_UTF16BE ) )
+        // leave UTF16 and UTF32 to the built-ins of wx
+        if ( m_name || ( m_encoding < wxFONTENCODING_UTF16BE ||
+            ( m_encoding >= wxFONTENCODING_MACMIN && m_encoding <= wxFONTENCODING_MACMAX ) ) )
         {
 
         {
 
+#if wxUSE_FONTMAP
             wxMBConv_mac *conv = m_name ? new wxMBConv_mac(m_name)
                                         : new wxMBConv_mac(m_encoding);
             wxMBConv_mac *conv = m_name ? new wxMBConv_mac(m_name)
                                         : new wxMBConv_mac(m_encoding);
+#else
+            wxMBConv_mac *conv = new wxMBConv_mac(m_encoding);
+#endif
             if ( conv->IsOk() )
                  return conv;
 
             if ( conv->IsOk() )
                  return conv;
 
@@ -2340,8 +2566,12 @@ wxMBConv *wxCSConv::DoCreate() const
         if ( m_name || ( m_encoding <= wxFONTENCODING_UTF16 ) )
         {
 
         if ( m_name || ( m_encoding <= wxFONTENCODING_UTF16 ) )
         {
 
+#if wxUSE_FONTMAP
             wxMBConv_cocoa *conv = m_name ? new wxMBConv_cocoa(m_name)
                                           : new wxMBConv_cocoa(m_encoding);
             wxMBConv_cocoa *conv = m_name ? new wxMBConv_cocoa(m_name)
                                           : new wxMBConv_cocoa(m_encoding);
+#else
+            wxMBConv_cocoa *conv = new wxMBConv_cocoa(m_encoding);
+#endif
             if ( conv->IsOk() )
                  return conv;
 
             if ( conv->IsOk() )
                  return conv;
 
@@ -2357,7 +2587,7 @@ wxMBConv *wxCSConv::DoCreate() const
         // 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
         // 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);
+        enc = wxFontMapperBase::Get()->CharsetToEncoding(m_name, false);
     }
 #endif // wxUSE_FONTMAP
 
     }
 #endif // wxUSE_FONTMAP
 
@@ -2413,7 +2643,7 @@ wxMBConv *wxCSConv::DoCreate() const
                    m_name ? m_name
                       :
 #if wxUSE_FONTMAP
                    m_name ? m_name
                       :
 #if wxUSE_FONTMAP
-                         wxFontMapper::GetEncodingDescription(m_encoding).c_str()
+                         wxFontMapperBase::GetEncodingDescription(m_encoding).c_str()
 #else // !wxUSE_FONTMAP
                          wxString::Format(_("encoding %s"), m_encoding).c_str()
 #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
 #else // !wxUSE_FONTMAP
                          wxString::Format(_("encoding %s"), m_encoding).c_str()
 #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
@@ -2510,13 +2740,19 @@ static wxCSConv wxConvISO8859_1Obj(wxFONTENCODING_ISO8859_1);
 static wxMBConvUTF7 wxConvUTF7Obj;
 static wxMBConvUTF8 wxConvUTF8Obj;
 
 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;
 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;
+WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvFileName = &
+#ifdef __WXOSX__
+                                    wxConvUTF8Obj;
+#else
+                                    wxConvLibcObj;
+#endif
+
 
 #else // !wxUSE_WCHAR_T
 
 
 #else // !wxUSE_WCHAR_T
 
wxWidgets (Impactor)