check for LVS_OWNERDATA availability at compile and run-time

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

diff --git a/src/common/strconv.cpp b/src/common/strconv.cpp
index 9c505d0cc82c9b815b42d2da03aabbff299ea687..92699a8c3a073509f513972ef766efcaa78071ac 100644 (file)
--- a/src/common/strconv.cpp
+++ b/src/common/strconv.cpp
@@ -28,6 +28,10 @@
   #pragma hdrstop
 #endif
 
   #pragma hdrstop
 #endif
 

+#ifdef __WXMSW__
+  #include "wx/msw/private.h"
+#endif
+

 #include <errno.h>
 #include <ctype.h>
 #include <string.h>
 #include <errno.h>
 #include <ctype.h>
 #include <string.h>


@@ -40,14 +44,17 @@
 #ifdef HAVE_ICONV_H
   #include <iconv.h>
 #endif
 #ifdef HAVE_ICONV_H
   #include <iconv.h>
 #endif

-#ifdef HAVE_LANGINFO_H
-  #include <langinfo.h>
+
+#ifdef __WXMSW__
+  #include <windows.h>

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

+#include "wx/intl.h"
+#include "wx/log.h"

 
 

-#ifdef WORDS_BIGENDIAN
+#if defined(WORDS_BIGENDIAN) || defined(__STDC_ISO_10646__)

 #define BSWAP_UCS4(str, len)
 #define BSWAP_UCS2(str, len)
 #else
 #define BSWAP_UCS4(str, len)
 #define BSWAP_UCS2(str, len)
 #else


@@ -58,13 +65,22 @@
 #define BSWAP_UTF32(str, len) BSWAP_UCS4(str, len)
 #define BSWAP_UTF16(str, len) BSWAP_UCS2(str, len)
 
 #define BSWAP_UTF32(str, len) BSWAP_UCS4(str, len)
 #define BSWAP_UTF16(str, len) BSWAP_UCS2(str, len)
 

+// 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
 #if SIZEOF_WCHAR_T == 4

-#define WC_NAME "UCS4"
-#define WC_BSWAP BSWAP_UCS4
+    #define WC_NAME "UCS4"
+    #define WC_BSWAP BSWAP_UCS4

 #elif SIZEOF_WCHAR_T == 2
 #elif SIZEOF_WCHAR_T == 2

-#define WC_NAME "UTF16"
-#define WC_BSWAP BSWAP_UTF16
-#define WC_UTF16
+    #define WC_NAME "UTF16"
+    #define WC_BSWAP BSWAP_UTF16
+    #define WC_UTF16
+#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"

 #endif
 
 // ----------------------------------------------------------------------------
 #endif
 
 // ----------------------------------------------------------------------------


@@ -79,38 +95,51 @@ WXDLLEXPORT_DATA(wxMBConv *) wxConvCurrent = &wxConvLibc;
 
 #if wxUSE_WCHAR_T
 
 
 #if wxUSE_WCHAR_T
 

-static size_t encode_utf16(wxUint32 input,wxUint16*output)
+#ifdef WC_UTF16
+
+static size_t encode_utf16(wxUint32 input, wchar_t *output)

 {
 {

-  if (input<=0xffff) {
-    if (output) *output++ = input;
-    return 1;
-  } else
-  if (input>=0x110000) {
-    return (size_t)-1;
-  } else {
-    if (output) {
-      *output++ = (input >> 10)+0xd7c0;
-      *output++ = (input&0x3ff)+0xdc00;
-    }
-    return 2;
-  }
+    if (input<=0xffff)
+    {
+        if (output) *output++ = input;
+        return 1;
+    }
+    else if (input>=0x110000)
+    {
+        return (size_t)-1;
+    }
+    else
+    {
+        if (output)
+        {
+            *output++ = (input >> 10)+0xd7c0;
+            *output++ = (input&0x3ff)+0xdc00;
+        }
+        return 2;
+    }

 }
 
 }
 

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

 {
 {

-  if ((*input<0xd800) || (*input>0xdfff)) {
-    output = *input;
-    return 1;
-  } else
-  if ((input[1]<0xdc00) || (input[1]>=0xdfff)) {
-    output = *input;
-    return (size_t)-1;
-  } else {
-    output = ((input[0] - 0xd7c0) << 10) + (input[1] - 0xdc00);
-    return 2;
-  }
+    if ((*input<0xd800) || (*input>0xdfff))
+    {
+        output = *input;
+        return 1;
+    }
+    else if ((input[1]<0xdc00) || (input[1]>=0xdfff))
+    {
+        output = *input;
+        return (size_t)-1;
+    }
+    else
+    {
+        output = ((input[0] - 0xd7c0) << 10) + (input[1] - 0xdc00);
+        return 2;
+    }

 }
 
 }
 

+#endif // WC_UTF16
+

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


@@ -186,26 +215,32 @@ WXDLLEXPORT_DATA(wxMBConvGdk) wxConvGdk;
 
 size_t wxMBConvGdk::MB2WC(wchar_t *buf, const char *psz, size_t n) const
 {
 
 size_t wxMBConvGdk::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;
-  }
+    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;
+    }

 }
 
 size_t wxMBConvGdk::WC2MB(char *buf, const wchar_t *psz, size_t n) const
 {
 }
 
 size_t wxMBConvGdk::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;
+    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;

 }
 
 #endif // GTK > 1.0
 }
 
 #endif // GTK > 1.0


@@ -247,86 +282,110 @@ size_t wxMBConvUTF7::WC2MB(char * WXUNUSED(buf),
 
 WXDLLEXPORT_DATA(wxMBConvUTF8) wxConvUTF8;
 
 
 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 };

 
 size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const
 {
 
 size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const
 {

-  size_t len = 0;
-
-  while (*psz && ((!buf) || (len<n))) {
-    unsigned char cc=*psz++, fc=cc;
-    unsigned cnt;
-    for (cnt=0; fc&0x80; cnt++) fc<<=1;
-    if (!cnt) {
-      // plain ASCII char
-      if (buf) *buf++=cc;
-      len++;
-    } else {
-      cnt--;
-      if (!cnt) {
-        // invalid UTF-8 sequence
-        return (size_t)-1;
-      } else {
-        unsigned ocnt=cnt-1;
-        wxUint32 res=cc&(0x3f>>cnt);
-        while (cnt--) {
-          cc = *psz++;
-          if ((cc&0xC0)!=0x80) {
-            // invalid UTF-8 sequence
-            return (size_t)-1;
-          }
-          res=(res<<6)|(cc&0x3f);
-        }
-        if (res<=utf8_max[ocnt]) {
-          // illegal UTF-8 encoding
-          return (size_t)-1;
+    size_t len = 0;
+
+    while (*psz && ((!buf) || (len < n)))
+    {
+        unsigned char cc = *psz++, fc = cc;
+        unsigned cnt;
+        for (cnt = 0; fc & 0x80; cnt++)
+            fc <<= 1;
+        if (!cnt)
+        {
+            // plain ASCII char
+            if (buf)
+                *buf++ = cc;
+            len++;

         }
         }

+        else
+        {
+            cnt--;
+            if (!cnt)
+            {
+                // invalid UTF-8 sequence
+                return (size_t)-1;
+            }
+            else
+            {
+                unsigned ocnt = cnt - 1;
+                wxUint32 res = cc & (0x3f >> cnt);
+                while (cnt--)
+                {
+                    cc = *psz++;
+                    if ((cc & 0xC0) != 0x80)
+                    {
+                        // invalid UTF-8 sequence
+                        return (size_t)-1;
+                    }
+                    res = (res << 6) | (cc & 0x3f);
+                }
+                if (res <= utf8_max[ocnt])
+                {
+                    // illegal UTF-8 encoding
+                    return (size_t)-1;
+                }

 #ifdef WC_UTF16
 #ifdef WC_UTF16

-        size_t pa = encode_utf16(res, buf);
-        if (pa == (size_t)-1)
-          return (size_t)-1;
-        if (buf) buf+=pa;
-        len+=pa;
+                size_t pa = encode_utf16(res, buf);
+                if (pa == (size_t)-1)
+                  return (size_t)-1;
+                if (buf)
+                    buf += pa;
+                len += pa;

 #else
 #else

-        if (buf) *buf++=res;
-        len++;
+                if (buf)
+                    *buf++ = res;
+                len++;

 #endif
 #endif

-      }
+            }
+        }

     }
     }

-  }
-  if (buf && (len<n)) *buf = 0;
-  return len;
+    if (buf && (len < n))
+        *buf = 0;
+    return len;

 }
 
 size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const
 {
 }
 
 size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const
 {

-  size_t len = 0;
+    size_t len = 0;

 
 

-  while (*psz && ((!buf) || (len<n))) {
-    wxUint32 cc;
+    while (*psz && ((!buf) || (len < n)))
+    {
+        wxUint32 cc;

 #ifdef WC_UTF16
 #ifdef WC_UTF16

-    size_t pa = decode_utf16(psz,cc);
-    psz += (pa == (size_t)-1) ? 1 : pa;
+        size_t pa = decode_utf16(psz, cc);
+        psz += (pa == (size_t)-1) ? 1 : pa;

 #else
 #else

-    cc=(*psz++)&0x7fffffff;
+        cc=(*psz++) & 0x7fffffff;

 #endif
 #endif

-    unsigned cnt;
-    for (cnt=0; cc>utf8_max[cnt]; cnt++);
-    if (!cnt) {
-      // plain ASCII char
-      if (buf) *buf++=cc;
-      len++;
-    } else {
-      len+=cnt+1;
-      if (buf) {
-        *buf++=(-128>>cnt)|((cc>>(cnt*6))&(0x3f>>cnt));
-        while (cnt--)
-          *buf++=0x80|((cc>>(cnt*6))&0x3f);
-      }
-    }
-  }
-  if (buf && (len<n)) *buf = 0;
-  return len;
+        unsigned cnt;
+        for (cnt = 0; cc > utf8_max[cnt]; cnt++) {}
+        if (!cnt)
+        {
+            // plain ASCII char
+            if (buf)
+                *buf++ = cc;
+            len++;
+        }
+
+        else
+        {
+            len += cnt + 1;
+            if (buf)
+            {
+                *buf++ = (-128 >> cnt) | ((cc >> (cnt * 6)) & (0x3f >> cnt));
+                while (cnt--)
+                    *buf++ = 0x80 | ((cc >> (cnt * 6)) & 0x3f);
+            }
+        }
+    }
+
+    if (buf && (len<n)) *buf = 0;
+    return len;

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


@@ -343,332 +402,479 @@ WXDLLEXPORT_DATA(wxCSConv) wxConvLocal((const wxChar *)NULL);
 // - perhaps common encodings to objects ("UTF8" -> wxConvUTF8)
 // - move wxEncodingConverter meat in here
 
 // - perhaps common encodings to objects ("UTF8" -> wxConvUTF8)
 // - move wxEncodingConverter meat in here
 

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

 #include "wx/msw/registry.h"
 // this should work if M$ Internet Exploiter is installed
 static long CharsetToCodepage(const wxChar *name)
 {
 #include "wx/msw/registry.h"
 // this should work if M$ Internet Exploiter is installed
 static long CharsetToCodepage(const wxChar *name)
 {

-  if (!name) return GetACP();
-  long CP=-1;
-  wxString cn(name);
-  do {
-    wxString path(wxT("MIME\\Database\\Charset\\"));
-    path += cn;
-    wxRegKey key(wxRegKey::HKCR,path);
-
-    /* two cases: either there's an AliasForCharset string,
-     * or there are Codepage and InternetEncoding dwords.
-     * The InternetEncoding gives us the actual encoding,
-     * the Codepage just says which Windows character set to
-     * use when displaying the data.
-     */
-    if (key.QueryValue(wxT("InternetEncoding"),&CP)) break;
-    // no encoding, see if it's an alias
-    if (!key.QueryValue(wxT("AliasForCharset"),cn)) break;
-  } while (1);
-  return CP;
+    if (!name)
+        return GetACP();
+
+    long CP=-1;
+
+    wxString cn(name);
+    do {
+        wxString path(wxT("MIME\\Database\\Charset\\"));
+        path += cn;
+        wxRegKey key(wxRegKey::HKCR, path);
+
+        if (!key.Exists()) break;
+
+        // two cases: either there's an AliasForCharset string,
+        // or there are Codepage and InternetEncoding dwords.
+        // The InternetEncoding gives us the actual encoding,
+        // the Codepage just says which Windows character set to
+        // use when displaying the data.
+        if (key.HasValue(wxT("InternetEncoding")) &&
+            key.QueryValue(wxT("InternetEncoding"), &CP)) break;
+
+        // no encoding, see if it's an alias
+        if (!key.HasValue(wxT("AliasForCharset")) ||
+            !key.QueryValue(wxT("AliasForCharset"), cn)) break;
+    } while (1);
+
+    return CP;

 }
 #endif
 
 class wxCharacterSet
 {
 public:
 }
 #endif
 
 class wxCharacterSet
 {
 public:

-  const wxChar*cname;
-  wxCharacterSet(const wxChar*name) : cname(name) {}
-  virtual ~wxCharacterSet() {}
-  virtual size_t MB2WC(wchar_t*buf, const char*psz, size_t n) { return (size_t)-1; }
-  virtual size_t WC2MB(char*buf, const wchar_t*psz, size_t n) { return (size_t)-1; }
-  virtual bool usable() { return FALSE; }
+    wxCharacterSet(const wxChar*name)
+        : cname(name) {}
+    virtual ~wxCharacterSet()
+        {}
+    virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
+        { return (size_t)-1; }
+    virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
+        { return (size_t)-1; }
+    virtual bool usable()
+        { return FALSE; }
+public:
+    const wxChar*cname;

 };
 
 class ID_CharSet : public wxCharacterSet
 {
 public:
 };
 
 class ID_CharSet : public wxCharacterSet
 {
 public:

-  wxMBConv*work;
-  ID_CharSet(const wxChar*name,wxMBConv*cnv) : wxCharacterSet(name), work(cnv) {}
-  size_t MB2WC(wchar_t*buf, const char*psz, size_t n)
-  { return work ? work->MB2WC(buf,psz,n) : (size_t)-1; }
-  size_t WC2MB(char*buf, const wchar_t*psz, size_t n)
-  { return work ? work->WC2MB(buf,psz,n) : (size_t)-1; }
-  bool usable() { return work!=NULL; }
+    ID_CharSet(const wxChar *name,wxMBConv *cnv)
+        : wxCharacterSet(name), work(cnv) {}
+
+    size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
+        { return work ? work->MB2WC(buf,psz,n) : (size_t)-1; }
+
+    size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
+        { return work ? work->WC2MB(buf,psz,n) : (size_t)-1; }
+
+    bool usable()
+        { return work!=NULL; }
+public:
+    wxMBConv*work;

 };
 
 };
 

+

 #ifdef HAVE_ICONV_H
 #ifdef HAVE_ICONV_H

+
+// 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) && \
+                                     (errno != E2BIG || bufLeft != 0))
+#else
+#define ICONV_FAILED(cres, bufLeft)  (cres == (size_t)-1)
+#endif
+

 class IC_CharSet : public wxCharacterSet
 {
 public:
 class IC_CharSet : public wxCharacterSet
 {
 public:

-  iconv_t m2w, w2m;
-  IC_CharSet(const wxChar*name) : wxCharacterSet(name), m2w((iconv_t)-1), w2m((iconv_t)-1) {}
-  ~IC_CharSet() {
-    if (m2w!=(iconv_t)-1) iconv_close(m2w);
-    if (w2m!=(iconv_t)-1) iconv_close(w2m);
-  }
-  void LoadM2W() { if (m2w==(iconv_t)-1) m2w=iconv_open(WC_NAME,wxConvLibc.cWX2MB(cname)); }
-  void LoadW2M() { if (w2m==(iconv_t)-1) w2m=iconv_open(wxConvLibc.cWX2MB(cname),WC_NAME); }
-  size_t MB2WC(wchar_t*buf, const char*psz, size_t n) {
-    LoadM2W();
-    size_t inbuf = strlen(psz);
-    size_t outbuf = n*SIZEOF_WCHAR_T;
-    size_t res, cres;
-    fprintf(stderr,"IC Convert to WC using %s\n",(const char*)wxConvLibc.cWX2MB(cname));
-    if (buf) {
-      // have destination buffer, convert there
-      cres = iconv(m2w,&psz,&inbuf,(char**)&buf,&outbuf);
-      res = n-(outbuf/SIZEOF_WCHAR_T);
-      // convert to native endianness
-      WC_BSWAP(buf, res)
-    } else {
-      // no destination buffer... convert using temp buffer
-      // to calculate destination buffer requirement
-      wchar_t tbuf[8];
-      res = 0;
-      do {
-        buf = tbuf; outbuf = 8*SIZEOF_WCHAR_T;
-        cres = iconv(m2w,&psz,&inbuf,(char**)&buf,&outbuf);
-        res += 8-(outbuf/SIZEOF_WCHAR_T);
-      } while ((cres==(size_t)-1) && (errno==E2BIG));
-    }
-    if (cres==(size_t)-1) return (size_t)-1;
-    return res;
-  }
-  size_t WC2MB(char*buf, const wchar_t*psz, size_t n) {
-    LoadW2M();
-#if defined(__BORLANDC__) && (__BORLANDC__ > 0x530)
-    size_t inbuf = std::wcslen(psz);
+    IC_CharSet(const wxChar *name)
+        : wxCharacterSet(name)
+    {
+        m2w = iconv_open(WC_NAME, wxConvLibc.cWX2MB(cname));
+        w2m = iconv_open(wxConvLibc.cWX2MB(cname), WC_NAME);
+    }
+
+    ~IC_CharSet()
+    {
+        if ( m2w != (iconv_t)-1 )
+            iconv_close(m2w);
+        if ( w2m != (iconv_t)-1 )
+            iconv_close(w2m);
+    }
+
+    size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
+    {
+        size_t inbuf = strlen(psz);
+        size_t outbuf = n * SIZEOF_WCHAR_T;
+        size_t res, cres;
+        // VS: Use these instead of psz, buf because iconv() modifies its arguments:
+        wchar_t *bufPtr = buf;
+        const char *pszPtr = psz;
+
+        if (buf)
+        {
+            // have destination buffer, convert there
+#ifdef WX_ICONV_TAKES_CHAR
+            cres = iconv(m2w, (char**)&pszPtr, &inbuf, (char**)&bufPtr, &outbuf);

 #else
 #else

-    size_t inbuf = ::wcslen(psz);
+            cres = iconv(m2w, &pszPtr, &inbuf, (char**)&bufPtr, &outbuf);

 #endif
 #endif

-    size_t outbuf = n;
-    size_t res, cres;
-    fprintf(stderr,"IC Convert from WC using %s\n",(const char*)wxConvLibc.cWX2MB(cname));
+            res = n - (outbuf / SIZEOF_WCHAR_T);
+            // convert to native endianness

 #ifdef WC_NEED_BSWAP
 #ifdef WC_NEED_BSWAP

-    // need to copy to temp buffer to switch endianness
-    // this absolutely doesn't rock!
-    // (no, doing WC_BSWAP twice on the original buffer won't help, as it
-    //  could be in read-only memory, or be accessed in some other thread)
-    wchar_t*tmpbuf=(wchar_t*)malloc((inbuf+1)*SIZEOF_WCHAR_T);
-    memcpy(tmpbuf,psz,(inbuf+1)*SIZEOF_WCHAR_T);
-    WC_BSWAP(tmpbuf, inbuf)
-    psz=tmpbuf;
+            WC_BSWAP(buf /* _not_ bufPtr */, res)

 #endif
 #endif

-    if (buf) {
-      // have destination buffer, convert there
-      cres = iconv(w2m,(const char**)&psz,&inbuf,&buf,&outbuf);
-      res = n-outbuf;
-    } else {
-      // no destination buffer... convert using temp buffer
-      // to calculate destination buffer requirement
-      char tbuf[16];
-      res = 0;
-      do {
-        buf = tbuf; outbuf = 16;
-        cres = iconv(w2m,(const char**)&psz,&inbuf,&buf,&outbuf);
-        res += 16 - outbuf;
-      } while ((cres==(size_t)-1) && (errno==E2BIG));
+        }
+        else
+        {
+            // no destination buffer... convert using temp buffer
+            // to calculate destination buffer requirement
+            wchar_t tbuf[8];
+            res = 0;
+            do {
+                bufPtr = tbuf; outbuf = 8*SIZEOF_WCHAR_T;
+#ifdef WX_ICONV_TAKES_CHAR
+                cres = iconv( m2w, (char**)&pszPtr, &inbuf, (char**)&bufPtr, &outbuf );
+#else
+                cres = iconv( m2w, &pszPtr, &inbuf, (char**)&bufPtr, &outbuf );
+#endif
+                res += 8-(outbuf/SIZEOF_WCHAR_T);
+            } while ((cres==(size_t)-1) && (errno==E2BIG));
+        }
+
+        if (ICONV_FAILED(cres, inbuf))
+            return (size_t)-1;
+
+        return res;

     }
     }

+
+    size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
+    {
+#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 outbuf = n;
+        size_t res, cres;
+

 #ifdef WC_NEED_BSWAP
 #ifdef WC_NEED_BSWAP

-    free(tmpbuf);
+        // need to copy to temp buffer to switch endianness
+        // this absolutely doesn't rock!
+        // (no, doing WC_BSWAP twice on the original buffer won't help, as it
+        //  could be in read-only memory, or be accessed in some other thread)
+        wchar_t *tmpbuf=(wchar_t*)malloc((inbuf+1)*SIZEOF_WCHAR_T);
+        memcpy(tmpbuf,psz,(inbuf+1)*SIZEOF_WCHAR_T);
+        WC_BSWAP(tmpbuf, inbuf)
+        psz=tmpbuf;
+#endif
+        if (buf)
+        {
+            // have destination buffer, convert there
+#ifdef WX_ICONV_TAKES_CHAR
+            cres = iconv( w2m, (char**)&psz, &inbuf, &buf, &outbuf );
+#else
+            cres = iconv( w2m, (const char**)&psz, &inbuf, &buf, &outbuf );
+#endif
+            res = n-outbuf;
+        }
+        else
+        {
+            // no destination buffer... convert using temp buffer
+            // to calculate destination buffer requirement
+            char tbuf[16];
+            res = 0;
+            do {
+                buf = tbuf; outbuf = 16;
+#ifdef WX_ICONV_TAKES_CHAR
+                cres = iconv( w2m, (char**)&psz, &inbuf, &buf, &outbuf );
+#else
+                cres = iconv( w2m, (const char**)&psz, &inbuf, &buf, &outbuf );

 #endif
 #endif

-    if (cres==(size_t)-1) return (size_t)-1;
-    return res;
-  }
-  bool usable() { return TRUE; }
+                res += 16 - outbuf;
+            } while ((cres==(size_t)-1) && (errno==E2BIG));
+        }
+#ifdef WC_NEED_BSWAP
+        free(tmpbuf);
+#endif
+        if (ICONV_FAILED(cres, inbuf))
+            return (size_t)-1;
+
+        return res;
+    }
+
+    bool usable()
+        { return (m2w != (iconv_t)-1) && (w2m != (iconv_t)-1); }
+
+public:
+    iconv_t m2w, w2m;

 };
 #endif
 
 };
 #endif
 

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

 class CP_CharSet : public wxCharacterSet
 {
 public:
 class CP_CharSet : public wxCharacterSet
 {
 public:

-  long CodePage;
-  CP_CharSet(const wxChar*name) : wxCharacterSet(name), CodePage(CharsetToCodepage(name)) {}
-  size_t MB2WC(wchar_t*buf, const char*psz, size_t n) {
-    size_t len = MultiByteToWideChar(CodePage,0,psz,-1,buf,buf?n:0);
-    return len?len:(size_t)-1;
-  }
-  size_t WC2MB(char*buf, const wchar_t*psz, size_t n) {
-    size_t len = WideCharToMultiByte(CodePage,0,psz,-1,buf,buf?n:0,NULL,NULL);
-    return len?len:(size_t)-1;
-  }
-  bool usable() { return CodePage!=-1; }
+    CP_CharSet(const wxChar*name)
+        : wxCharacterSet(name), CodePage(CharsetToCodepage(name)) {}
+
+    size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
+    {
+        size_t len =
+            MultiByteToWideChar(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;
+    }
+
+    size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
+    {
+        size_t len = WideCharToMultiByte(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;
+    }
+
+    bool usable()
+        { return CodePage != -1; }
+
+public:
+    long CodePage;

 };
 };

-#endif
+#endif // __WIN32__
+
+#if wxUSE_FONTMAP

 
 class EC_CharSet : public wxCharacterSet
 {
 public:
 
 class EC_CharSet : public wxCharacterSet
 {
 public:

-  // temporarily just use wxEncodingConverter stuff,
-  // so that it works while a better implementation is built
-  wxFontEncoding enc;
-  wxEncodingConverter m2w, w2m;
-  EC_CharSet(const wxChar*name) : wxCharacterSet(name), enc(wxFONTENCODING_SYSTEM)
-  {
-    if (name) enc = wxTheFontMapper->CharsetToEncoding(name, FALSE);
-    m2w.Init(enc, wxFONTENCODING_UNICODE);
-    w2m.Init(wxFONTENCODING_UNICODE, enc);
-  }
-  size_t MB2WC(wchar_t*buf, const char*psz, size_t n) {
-    size_t inbuf = strlen(psz);
-    fprintf(stderr,"EC Convert to WC using %d\n",enc);
-    if (buf) m2w.Convert(psz,buf);
-    return inbuf;
-  }
-  size_t WC2MB(char*buf, const wchar_t*psz, size_t n) {
+    // 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)
+    {
+        if (name)
+            enc = wxTheFontMapper->CharsetToEncoding(name, FALSE);
+        m2w.Init(enc, wxFONTENCODING_UNICODE);
+        w2m.Init(wxFONTENCODING_UNICODE, enc);
+    }
+
+    size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
+    {
+        size_t inbuf = strlen(psz);
+        if (buf)
+            m2w.Convert(psz,buf);
+        return inbuf;
+    }
+
+    size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
+    {

 #if defined(__BORLANDC__) && (__BORLANDC__ > 0x530)
 #if defined(__BORLANDC__) && (__BORLANDC__ > 0x530)

-    size_t inbuf = std::wcslen(psz);
+        size_t inbuf = std::wcslen(psz);

 #else
 #else

-    size_t inbuf = ::wcslen(psz);
+        size_t inbuf = ::wcslen(psz);

 #endif
 #endif

-    fprintf(stderr,"EC Convert from WC using %d\n",enc);
-    if (buf) w2m.Convert(psz,buf);
-    return inbuf;
-  }
-  bool usable() { return (enc!=wxFONTENCODING_SYSTEM) && (enc!=wxFONTENCODING_DEFAULT); }
+        if (buf)
+            w2m.Convert(psz,buf);
+
+        return inbuf;
+    }
+
+    bool usable()
+        { return (enc!=wxFONTENCODING_SYSTEM) && (enc!=wxFONTENCODING_DEFAULT); }
+
+public:
+    wxFontEncoding enc;
+    wxEncodingConverter m2w, w2m;

 };
 
 };
 

+#endif // wxUSE_FONTMAP
+

 static wxCharacterSet *wxGetCharacterSet(const wxChar *name)
 {
 static wxCharacterSet *wxGetCharacterSet(const wxChar *name)
 {

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

 #ifdef HAVE_ICONV_H
 #ifdef HAVE_ICONV_H

-      cset = new IC_CharSet(name); // may not take NULL
+            cset = new IC_CharSet(name); // may not take NULL

 #endif
 #endif

+        }

     }
     }

-  }
-  if (cset && cset->usable()) return cset;
-  if (cset) delete cset;
-#ifdef __WIN32__
-  cset = new CP_CharSet(name); // may take NULL
-  if (cset->usable()) return cset;
-#endif
-  if (cset) delete cset;
-  cset = new EC_CharSet(name);
-  if (cset->usable()) return cset;
-  delete cset;
-  return NULL;
+
+    if (cset && cset->usable())
+        return cset;
+
+    if (cset)
+    {
+        delete cset;
+        cset = NULL;
+    }
+
+#if defined(__WIN32__) && !defined(__WXMICROWIN__)
+    cset = new CP_CharSet(name); // may take NULL
+    if (cset->usable())
+        return cset;
+
+    delete cset;
+#endif // __WIN32__
+
+#if wxUSE_FONTMAP
+    cset = new EC_CharSet(name);
+    if (cset->usable())
+        return cset;
+#endif // wxUSE_FONTMAP
+
+    delete cset;
+    wxLogError(_("Unknown encoding '%s'!"), name);
+    return NULL;

 }
 
 wxCSConv::wxCSConv(const wxChar *charset)
 {
 }
 
 wxCSConv::wxCSConv(const wxChar *charset)
 {

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

 }
 
 wxCSConv::~wxCSConv()
 {
 }
 
 wxCSConv::~wxCSConv()
 {

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

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

-  if (charset) {
-    m_name = wxStrdup(charset);
-    m_deferred = TRUE;
-  }
+    if (charset)
+    {
+        m_name = wxStrdup(charset);
+        m_deferred = TRUE;
+    }

 }
 
 void wxCSConv::LoadNow()
 {
 }
 
 void wxCSConv::LoadNow()
 {

-//  wxPrintf(wxT("Conversion request\n"));
-  if (m_deferred) {
-    if (!m_name) {
-#ifdef __UNIX__
-#if defined(HAVE_LANGINFO_H) && defined(CODESET)
-      // GNU libc provides current character set this way
-      char*alang = nl_langinfo(CODESET);
-      if (alang) SetName(wxConvLibc.cMB2WX(alang));
-      else
-#endif
-      // if we can't get at the character set directly,
-      // try to see if it's in the environment variables
-      // (in most cases this won't work, but I was out of ideas)
-      {
-        wxChar *lang = wxGetenv(wxT("LC_ALL"));
-        if (!lang) lang = wxGetenv(wxT("LC_CTYPE"));
-        if (!lang) lang = wxGetenv(wxT("LANG"));
-        wxChar *dot = lang ? wxStrchr(lang, wxT('.')) : (wxChar *)NULL;
-        if (dot) SetName(dot+1);
-      }
-#endif
+    if (m_deferred)
+    {
+        if ( !m_name )
+        {
+            wxString name = wxLocale::GetSystemEncodingName();
+            if ( !name.empty() )
+                SetName(name);
+        }
+
+        // wxGetCharacterSet() complains about NULL name
+        m_cset = m_name ? wxGetCharacterSet(m_name) : NULL;
+        m_deferred = FALSE;

     }
     }

-    m_cset = wxGetCharacterSet(m_name);
-    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
-  if (m_cset)
-    return m_cset->MB2WC(buf, psz, n);
-
-  // latin-1 (direct)
-  size_t len=strlen(psz);
-  if (buf) {
-    for (size_t c=0; c<=len; c++)
-      buf[c] = (unsigned char)(psz[c]);
-  }
-  return len;
+    ((wxCSConv *)this)->LoadNow(); // discard constness
+
+    if (m_cset)
+        return m_cset->MB2WC(buf, psz, n);
+
+    // latin-1 (direct)
+    size_t len = strlen(psz);
+
+    if (buf)
+    {
+        for (size_t c = 0; c <= len; c++)
+            buf[c] = (unsigned char)(psz[c]);
+    }
+
+    return len;

 }
 
 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
-  if (m_cset)
-    return m_cset->WC2MB(buf, psz, n);
+    ((wxCSConv *)this)->LoadNow(); // discard constness
+
+    if (m_cset)
+        return m_cset->WC2MB(buf, psz, n);

 
 

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

 #if defined(__BORLANDC__) && (__BORLANDC__ > 0x530)
 #if defined(__BORLANDC__) && (__BORLANDC__ > 0x530)

-  size_t len=std::wcslen(psz);
+    size_t len=std::wcslen(psz);

 #else
 #else

-  size_t len=::wcslen(psz);
+    size_t len=::wcslen(psz);

 #endif
 #endif

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

 }
 
 #ifdef HAVE_ICONV_H
 }
 
 #ifdef HAVE_ICONV_H

+

 class IC_CharSetConverter
 {
 public:
 class IC_CharSetConverter
 {
 public:

-  iconv_t cnv;
-  IC_CharSetConverter(IC_CharSet*from,IC_CharSet*to) {
-    cnv=iconv_open(wxConvLibc.cWX2MB(to->cname),wxConvLibc.cWX2MB(from->cname));
-  }
-  ~IC_CharSetConverter() {
-    if (cnv!=(iconv_t)-1) iconv_close(cnv);
-  }
-  size_t Convert(char*buf, const char*psz, size_t n) {
-    size_t inbuf = strlen(psz);
-    size_t outbuf = n;
-    size_t res = iconv(cnv,&psz,&inbuf,&buf,&outbuf);
-    if (res==(size_t)-1) return (size_t)-1;
-    return n-outbuf;
-  }
-};
+    IC_CharSetConverter(IC_CharSet *from, IC_CharSet *to)
+    {
+        cnv = iconv_open(wxConvLibc.cWX2MB(to->cname),
+                         wxConvLibc.cWX2MB(from->cname));
+    }
+
+    ~IC_CharSetConverter()
+    {
+        if (cnv != (iconv_t)-1)
+            iconv_close(cnv);
+    }
+
+    size_t Convert(char *buf, const char *psz, size_t n)
+    {
+        size_t inbuf = strlen(psz);
+        size_t outbuf = n;
+#ifdef WX_ICONV_TAKES_CHAR
+        size_t res = iconv( cnv, (char**)&psz, &inbuf, &buf, &outbuf );
+#else
+        size_t res = iconv( cnv, &psz, &inbuf, &buf, &outbuf );

 #endif
 #endif

+        if (res == (size_t)-1)
+            return (size_t)-1;
+        return (n - outbuf);
+    }
+
+public:
+    iconv_t cnv;
+};
+
+#endif // HAVE_ICONV_H

 
 class EC_CharSetConverter
 {
 public:
 
 class EC_CharSetConverter
 {
 public:

-  wxEncodingConverter cnv;
-  EC_CharSetConverter(EC_CharSet*from,EC_CharSet*to) {
-    cnv.Init(from->enc,to->enc);
-  }
-  size_t Convert(char*buf, const char*psz, size_t n) {
-    size_t inbuf = strlen(psz);
-    if (buf) cnv.Convert(psz,buf);
-    return inbuf;
-  }
+    EC_CharSetConverter(EC_CharSet* from,EC_CharSet* to)
+        { cnv.Init(from->enc,to->enc); }
+
+    size_t Convert(char* buf, const char* psz, size_t n)
+    {
+        size_t inbuf = strlen(psz);
+        if (buf) cnv.Convert(psz,buf);
+        return inbuf;
+    }
+
+public:
+    wxEncodingConverter cnv;

 };
 
 #else // !wxUSE_WCHAR_T
 };
 
 #else // !wxUSE_WCHAR_T