/////////////////////////////////////////////////////////////////////////////
// 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, Vadim Zeitlin, Vaclav Slavik
-// Licence: wxWindows license
+// Copyright: (c) 1999 Ove Kaaven, Robert Roebling, Vaclav Slavik
+// (c) 2000-2003 Vadim Zeitlin
+// (c) 2004 Ryan Norton, Fredrik Roubert
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "strconv.h"
#endif
#include "wx/log.h"
#endif // WX_PRECOMP
-#ifdef __WXMSW__
- #include "wx/msw/private.h"
-#endif
-
-#include <errno.h>
-#include <ctype.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "wx/module.h"
#include "wx/strconv.h"
-// ----------------------------------------------------------------------------
-// globals
-// ----------------------------------------------------------------------------
-
#if wxUSE_WCHAR_T
- WXDLLEXPORT_DATA(wxMBConv) wxConvLibc;
- WXDLLEXPORT_DATA(wxCSConv) wxConvLocal((const wxChar *)NULL);
- WXDLLEXPORT_DATA(wxCSConv) wxConvISO8859_1(_T("iso-8859-1"));
-#else
- // stand-ins in absence of wchar_t
- WXDLLEXPORT_DATA(wxMBConv) wxConvLibc,
- wxConvFile,
- wxConvISO8859_1,
- wxConvLocal;
-#endif // wxUSE_WCHAR_T
-WXDLLEXPORT_DATA(wxMBConv *) wxConvCurrent = &wxConvLibc;
+#ifdef __WXMSW__
+ #include "wx/msw/private.h"
+#endif
-class wxStrConvModule: public wxModule
-{
-public:
- wxStrConvModule() : wxModule() { }
- virtual bool OnInit() { return TRUE; }
- virtual void OnExit()
- {
-#if wxUSE_WCHAR_T
- wxConvLocal.Clear();
- wxConvISO8859_1.Clear();
+#ifdef __WINDOWS__
+ #include "wx/msw/missing.h"
#endif
- }
- DECLARE_DYNAMIC_CLASS(wxStrConvModule)
-};
+#ifndef __WXWINCE__
+#include <errno.h>
+#endif
-IMPLEMENT_DYNAMIC_CLASS(wxStrConvModule, wxModule)
+#include <ctype.h>
+#include <string.h>
+#include <stdlib.h>
+#if defined(__WIN32__) && !defined(__WXMICROWIN__)
+ #define wxHAVE_WIN32_MB2WC
+#endif // __WIN32__ but !__WXMICROWIN__
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
-#if wxUSE_WCHAR_T
-
#ifdef __SALFORDC__
#include <clib.h>
#endif
#ifdef HAVE_ICONV
#include <iconv.h>
+ #include "wx/thread.h"
#endif
#include "wx/encconv.h"
#include "wx/fontmap.h"
+#include "wx/utils.h"
+#ifdef __WXMAC__
+#include <ATSUnicode.h>
+#include <TextCommon.h>
+#include <TextEncodingConverter.h>
+
+#include "wx/mac/private.h" // includes mac headers
+#endif
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
#define BSWAP_UCS4(str, len) { unsigned _c; for (_c=0; _c<len; _c++) str[_c]=wxUINT32_SWAP_ALWAYS(str[_c]); }
#define BSWAP_UTF16(str, len) { unsigned _c; for (_c=0; _c<len; _c++) str[_c]=wxUINT16_SWAP_ALWAYS(str[_c]); }
-// under Unix SIZEOF_WCHAR_T is defined by configure, but under other platforms
-// it might be not defined - assume the most common value
-#ifndef SIZEOF_WCHAR_T
- #define SIZEOF_WCHAR_T 2
-#endif // !defined(SIZEOF_WCHAR_T)
-
#if SIZEOF_WCHAR_T == 4
#define WC_NAME "UCS4"
#define WC_BSWAP BSWAP_UCS4
#define WC_NAME_BEST "UTF-16LE"
#endif
#else // sizeof(wchar_t) != 2 nor 4
- // I don't know what to do about this
- #error "Weird sizeof(wchar_t): please report your platform details to wx-users mailing list"
+ // does this ever happen?
+ #error "Unknown sizeof(wchar_t): please report this to wx-dev@lists.wxwindows.org"
#endif
// ============================================================================
// ============================================================================
// ----------------------------------------------------------------------------
-// UTF-16 en/decoding
+// UTF-16 en/decoding to/from UCS-4
// ----------------------------------------------------------------------------
-#ifdef WC_UTF16
-static size_t encode_utf16(wxUint32 input, wchar_t *output)
+static size_t encode_utf16(wxUint32 input, wxUint16 *output)
{
if (input<=0xffff)
{
- if (output) *output++ = (wchar_t) input;
+ if (output)
+ *output = (wxUint16) input;
return 1;
}
else if (input>=0x110000)
{
if (output)
{
- *output++ = (wchar_t) ((input >> 10)+0xd7c0);
- *output++ = (wchar_t) ((input&0x3ff)+0xdc00);
+ *output++ = (wxUint16) ((input >> 10)+0xd7c0);
+ *output = (wxUint16) ((input&0x3ff)+0xdc00);
}
return 2;
}
}
-static size_t decode_utf16(const wchar_t* input, wxUint32& output)
+static size_t decode_utf16(const wxUint16* input, wxUint32& output)
{
if ((*input<0xd800) || (*input>0xdfff))
{
}
}
-#endif // WC_UTF16
// ----------------------------------------------------------------------------
// wxMBConv
// ----------------------------------------------------------------------------
-#define IGNORE_LIBC 0
-
wxMBConv::~wxMBConv()
{
- // nothing to do here
-}
-
-size_t wxMBConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
-{
-#if IGNORE_LIBC
- if (buf)
- {
- for (size_t i = 0; i < strlen( psz )+1; i++)
- buf[i] = (wchar_t) psz[i];
- return strlen( psz );
- }
- else
- {
- return strlen( psz );
- }
-#else
- return wxMB2WC(buf, psz, n);
-#endif
-}
-
-size_t wxMBConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const
-{
-#if IGNORE_LIBC
- if (buf)
- {
- for (size_t i = 0; i < wxStrlen( psz )+1; i++)
- buf[i] = (char) psz[i];
- return wxStrlen( psz );
- }
- else
- {
- return wxStrlen( psz );
- }
-#else
- return wxWC2MB(buf, psz, n);
-#endif
+ // nothing to do here (necessary for Darwin linking probably)
}
const wxWCharBuffer wxMBConv::cMB2WC(const char *psz) const
{
// now do the actual conversion
wxWCharBuffer buf(nLen);
- MB2WC(buf.data(), psz, nLen + 1); // with the trailing NUL
-
- return buf;
+ nLen = MB2WC(buf.data(), psz, nLen + 1); // with the trailing NULL
+ if ( nLen != (size_t)-1 )
+ {
+ return buf;
+ }
}
}
size_t nLen = WC2MB(NULL, pwz, 0);
if ( nLen != (size_t)-1 )
{
- wxCharBuffer buf(nLen);
- WC2MB(buf.data(), pwz, nLen + 1);
-
- return buf;
+ wxCharBuffer buf(nLen+3); // space for a wxUint32 trailing zero
+ nLen = WC2MB(buf.data(), pwz, nLen + 4);
+ if ( nLen != (size_t)-1 )
+ {
+ return buf;
+ }
}
}
return buf;
}
-// ----------------------------------------------------------------------------
-// standard gdk conversion
-// ----------------------------------------------------------------------------
+const wxWCharBuffer wxMBConv::cMB2WC(const char *szString, size_t nStringLen, size_t* pOutSize) const
+{
+ wxASSERT(pOutSize != NULL);
-#ifdef __WXGTK12__
+ const char* szEnd = szString + nStringLen + 1;
+ const char* szPos = szString;
+ const char* szStart = szPos;
-WXDLLEXPORT_DATA(wxMBConvGdk) wxConvGdk;
+ size_t nActualLength = 0;
+ size_t nCurrentSize = nStringLen; //try normal size first (should never resize?)
-#include <gdk/gdk.h>
+ wxWCharBuffer theBuffer(nCurrentSize);
-size_t wxMBConvGdk::MB2WC(wchar_t *buf, const char *psz, size_t n) const
-{
- if (buf)
+ //Convert the string until the length() is reached, continuing the
+ //loop every time a null character is reached
+ while(szPos != szEnd)
{
- 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;
+ 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 here instead of nLen
+ //here because XX2XX gives us the size of the output buffer,
+ //not neccessarly the length of the string
+ szPos += strlen(szPos) + 1;
}
+
+ //success - return actual length and the buffer
+ *pOutSize = nActualLength;
+ return theBuffer;
}
-size_t wxMBConvGdk::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *szString, size_t nStringLen, size_t* pOutSize) const
{
- char *mbstr = gdk_wcstombs((GdkWChar *)psz);
- size_t len = mbstr ? strlen(mbstr) : 0;
- if (buf)
+ 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)
{
- if (len > n)
- len = n;
- memcpy(buf, psz, len);
- if (len < n)
- buf[len] = 0;
+ 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 here instead of nLen
+ //here because XX2XX gives us the size of the output buffer,
+ //not neccessarly the length of the string
+ szPos += wxWcslen(szPos) + 1;
}
- return len;
+
+ //success - return actual length and the buffer
+ *pOutSize = nActualLength;
+ return theBuffer;
}
-#endif // GTK > 1.0
+// ----------------------------------------------------------------------------
+// wxMBConvLibc
+// ----------------------------------------------------------------------------
+
+size_t wxMBConvLibc::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ return wxMB2WC(buf, psz, n);
+}
+size_t wxMBConvLibc::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ return wxWC2MB(buf, psz, n);
+}
// ----------------------------------------------------------------------------
-// UTF-7
+// UTF-7
// ----------------------------------------------------------------------------
-WXDLLEXPORT_DATA(wxMBConvUTF7) wxConvUTF7;
+// Implementation (C) 2004 Fredrik Roubert
-#if 0
-static char utf7_setD[]="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
- "abcdefghijklmnopqrstuvwxyz"
- "0123456789'(),-./:?";
-static char utf7_setO[]="!\"#$%&*;<=>@[]^_`{|}";
-static char utf7_setB[]="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
- "abcdefghijklmnopqrstuvwxyz"
- "0123456789+/";
-#endif
+//
+// 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
+};
-// 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
+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[] =
+{
+ '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
{
- return 0;
+
+
+ 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;
}
// ----------------------------------------------------------------------------
// UTF-8
// ----------------------------------------------------------------------------
-WXDLLEXPORT_DATA(wxMBConvUTF8) wxConvUTF8;
-
static wxUint32 utf8_max[]=
{ 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff, 0xffffffff };
return (size_t)-1;
}
#ifdef WC_UTF16
- size_t pa = encode_utf16(res, buf);
+ // cast is ok because wchar_t == wxUuint16 if WC_UTF16
+ size_t pa = encode_utf16(res, (wxUint16 *)buf);
if (pa == (size_t)-1)
return (size_t)-1;
if (buf)
{
wxUint32 cc;
#ifdef WC_UTF16
- size_t pa = decode_utf16(psz, cc);
+ // cast is ok for WC_UTF16
+ size_t pa = decode_utf16((const wxUint16 *)psz, cc);
psz += (pa == (size_t)-1) ? 1 : pa;
#else
cc=(*psz++) & 0x7fffffff;
return len;
}
-// ============================================================================
-// wxCharacterSet and derived classes
-// ============================================================================
-// ----------------------------------------------------------------------------
-// wxCharacterSet is the ABC for the classes below
-// ----------------------------------------------------------------------------
-class wxCharacterSet
-{
-public:
- wxCharacterSet(const wxChar*name) : cname(name) {}
- virtual ~wxCharacterSet() {}
- virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) = 0;
- virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) = 0;
- virtual bool usable() const = 0;
-public:
- const wxChar*cname;
-};
// ----------------------------------------------------------------------------
-// ID_CharSet: implementation of wxCharacterSet using an existing wxMBConv
+// UTF-16
// ----------------------------------------------------------------------------
-class ID_CharSet : public wxCharacterSet
-{
-public:
- 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; }
+#ifdef WORDS_BIGENDIAN
+ #define wxMBConvUTF16straight wxMBConvUTF16BE
+ #define wxMBConvUTF16swap wxMBConvUTF16LE
+#else
+ #define wxMBConvUTF16swap wxMBConvUTF16BE
+ #define wxMBConvUTF16straight wxMBConvUTF16LE
+#endif
- bool usable() const
- { return work!=NULL; }
-public:
- wxMBConv*work;
-};
+#ifdef WC_UTF16
-// ============================================================================
-// The classes doing conversion using the iconv_xxx() functions
-// ============================================================================
+// copy 16bit MB to 16bit String
+size_t wxMBConvUTF16straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ size_t len=0;
-#ifdef HAVE_ICONV
+ while (*(wxUint16*)psz && (!buf || len < n))
+ {
+ if (buf)
+ *buf++ = *(wxUint16*)psz;
+ len++;
-// 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
+ psz += sizeof(wxUint16);
+ }
+ if (buf && len<n) *buf=0;
-#define ICONV_CHAR_CAST(x) ((ICONV_CONST char **)(x))
+ return len;
+}
-// ----------------------------------------------------------------------------
-// IC_CharSet: encapsulates an iconv character set
-// ----------------------------------------------------------------------------
-class IC_CharSet : public wxCharacterSet
+// copy 16bit String to 16bit MB
+size_t wxMBConvUTF16straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
{
-public:
- IC_CharSet(const wxChar *name);
- virtual ~IC_CharSet();
+ size_t len=0;
- virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n);
- virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n);
+ while (*psz && (!buf || len < n))
+ {
+ if (buf)
+ {
+ *(wxUint16*)buf = *psz;
+ buf += sizeof(wxUint16);
+ }
+ len += sizeof(wxUint16);
+ psz++;
+ }
+ if (buf && len<=n-sizeof(wxUint16)) *(wxUint16*)buf=0;
- bool usable() const
- { return (m2w != (iconv_t)-1) && (w2m != (iconv_t)-1); }
+ return len;
+}
-protected:
- // the iconv handlers used to translate from multibyte to wide char and in
- // the other direction
- iconv_t m2w,
- w2m;
-private:
- // the name (for iconv_open()) of a wide char charset - if none is
- // available on this machine, it will remain NULL
- static const char *ms_wcCharsetName;
+// swap 16bit MB to 16bit String
+size_t wxMBConvUTF16swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ size_t len=0;
- // true if the wide char encoding we use (i.e. ms_wcCharsetName) has
- // different endian-ness than the native one
- static bool ms_wcNeedsSwap;
-};
+ while (*(wxUint16*)psz && (!buf || len < n))
+ {
+ if (buf)
+ {
+ ((char *)buf)[0] = psz[1];
+ ((char *)buf)[1] = psz[0];
+ buf++;
+ }
+ len++;
+ psz += sizeof(wxUint16);
+ }
+ if (buf && len<n) *buf=0;
+
+ return len;
+}
-const char *IC_CharSet::ms_wcCharsetName = NULL;
-bool IC_CharSet::ms_wcNeedsSwap = FALSE;
-IC_CharSet::IC_CharSet(const wxChar *name)
- : wxCharacterSet(name)
+// swap 16bit MB to 16bit String
+size_t wxMBConvUTF16swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
{
- // Do it the hard way
- char cname[100];
- for (size_t i = 0; i < wxStrlen(name)+1; i++)
+ size_t len=0;
+
+ while (*psz && (!buf || len < n))
+ {
+ if (buf)
+ {
+ *buf++ = ((char*)psz)[1];
+ *buf++ = ((char*)psz)[0];
+ }
+ len += sizeof(wxUint16);
+ psz++;
+ }
+ if (buf && len<=n-sizeof(wxUint16)) *(wxUint16*)buf=0;
+
+ return len;
+}
+
+
+#else // WC_UTF16
+
+
+// copy 16bit MB to 32bit String
+size_t wxMBConvUTF16straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*(wxUint16*)psz && (!buf || len < n))
+ {
+ wxUint32 cc;
+ size_t pa=decode_utf16((wxUint16*)psz, cc);
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ *buf++ = cc;
+ len++;
+ psz += pa * sizeof(wxUint16);
+ }
+ if (buf && len<n) *buf=0;
+
+ return len;
+}
+
+
+// copy 32bit String to 16bit MB
+size_t wxMBConvUTF16straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*psz && (!buf || len < n))
+ {
+ wxUint16 cc[2];
+ size_t pa=encode_utf16(*psz, cc);
+
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ {
+ *(wxUint16*)buf = cc[0];
+ buf += sizeof(wxUint16);
+ if (pa > 1)
+ {
+ *(wxUint16*)buf = cc[1];
+ buf += sizeof(wxUint16);
+ }
+ }
+
+ len += pa*sizeof(wxUint16);
+ psz++;
+ }
+ if (buf && len<=n-sizeof(wxUint16)) *(wxUint16*)buf=0;
+
+ return len;
+}
+
+
+// swap 16bit MB to 32bit String
+size_t wxMBConvUTF16swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*(wxUint16*)psz && (!buf || len < n))
+ {
+ wxUint32 cc;
+ char tmp[4];
+ tmp[0]=psz[1]; tmp[1]=psz[0];
+ tmp[2]=psz[3]; tmp[3]=psz[2];
+
+ size_t pa=decode_utf16((wxUint16*)tmp, cc);
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ *buf++ = cc;
+
+ len++;
+ psz += pa * sizeof(wxUint16);
+ }
+ if (buf && len<n) *buf=0;
+
+ return len;
+}
+
+
+// swap 32bit String to 16bit MB
+size_t wxMBConvUTF16swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*psz && (!buf || len < n))
+ {
+ wxUint16 cc[2];
+ size_t pa=encode_utf16(*psz, cc);
+
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ {
+ *buf++ = ((char*)cc)[1];
+ *buf++ = ((char*)cc)[0];
+ if (pa > 1)
+ {
+ *buf++ = ((char*)cc)[3];
+ *buf++ = ((char*)cc)[2];
+ }
+ }
+
+ len += pa*sizeof(wxUint16);
+ psz++;
+ }
+ if (buf && len<=n-sizeof(wxUint16)) *(wxUint16*)buf=0;
+
+ return len;
+}
+
+#endif // WC_UTF16
+
+
+// ----------------------------------------------------------------------------
+// UTF-32
+// ----------------------------------------------------------------------------
+
+#ifdef WORDS_BIGENDIAN
+#define wxMBConvUTF32straight wxMBConvUTF32BE
+#define wxMBConvUTF32swap wxMBConvUTF32LE
+#else
+#define wxMBConvUTF32swap wxMBConvUTF32BE
+#define wxMBConvUTF32straight wxMBConvUTF32LE
+#endif
+
+
+WXDLLIMPEXP_DATA_BASE(wxMBConvUTF32LE) wxConvUTF32LE;
+WXDLLIMPEXP_DATA_BASE(wxMBConvUTF32BE) wxConvUTF32BE;
+
+
+#ifdef WC_UTF16
+
+// copy 32bit MB to 16bit String
+size_t wxMBConvUTF32straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*(wxUint32*)psz && (!buf || len < n))
+ {
+ wxUint16 cc[2];
+
+ size_t pa=encode_utf16(*(wxUint32*)psz, cc);
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ {
+ *buf++ = cc[0];
+ if (pa > 1)
+ *buf++ = cc[1];
+ }
+ len += pa;
+ psz += sizeof(wxUint32);
+ }
+ if (buf && len<n) *buf=0;
+
+ return len;
+}
+
+
+// copy 16bit String to 32bit MB
+size_t wxMBConvUTF32straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*psz && (!buf || len < n))
+ {
+ wxUint32 cc;
+
+ // cast is ok for WC_UTF16
+ size_t pa = decode_utf16((const wxUint16 *)psz, cc);
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ {
+ *(wxUint32*)buf = cc;
+ buf += sizeof(wxUint32);
+ }
+ len += sizeof(wxUint32);
+ psz += pa;
+ }
+
+ if (buf && len<=n-sizeof(wxUint32))
+ *(wxUint32*)buf=0;
+
+ return len;
+}
+
+
+
+// swap 32bit MB to 16bit String
+size_t wxMBConvUTF32swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*(wxUint32*)psz && (!buf || len < n))
+ {
+ char tmp[4];
+ tmp[0] = psz[3]; tmp[1] = psz[2];
+ tmp[2] = psz[1]; tmp[3] = psz[0];
+
+
+ wxUint16 cc[2];
+
+ size_t pa=encode_utf16(*(wxUint32*)tmp, cc);
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ {
+ *buf++ = cc[0];
+ if (pa > 1)
+ *buf++ = cc[1];
+ }
+ len += pa;
+ psz += sizeof(wxUint32);
+ }
+
+ if (buf && len<n)
+ *buf=0;
+
+ return len;
+}
+
+
+// swap 16bit String to 32bit MB
+size_t wxMBConvUTF32swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*psz && (!buf || len < n))
+ {
+ char cc[4];
+
+ // cast is ok for WC_UTF16
+ size_t pa=decode_utf16((const wxUint16 *)psz, *(wxUint32*)cc);
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ {
+ *buf++ = cc[3];
+ *buf++ = cc[2];
+ *buf++ = cc[1];
+ *buf++ = cc[0];
+ }
+ len += sizeof(wxUint32);
+ psz += pa;
+ }
+
+ if (buf && len<=n-sizeof(wxUint32))
+ *(wxUint32*)buf=0;
+
+ return len;
+}
+
+#else // WC_UTF16
+
+
+// copy 32bit MB to 32bit String
+size_t wxMBConvUTF32straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*(wxUint32*)psz && (!buf || len < n))
+ {
+ if (buf)
+ *buf++ = *(wxUint32*)psz;
+ len++;
+ psz += sizeof(wxUint32);
+ }
+
+ if (buf && len<n)
+ *buf=0;
+
+ return len;
+}
+
+
+// copy 32bit String to 32bit MB
+size_t wxMBConvUTF32straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*psz && (!buf || len < n))
+ {
+ if (buf)
+ {
+ *(wxUint32*)buf = *psz;
+ buf += sizeof(wxUint32);
+ }
+
+ len += sizeof(wxUint32);
+ psz++;
+ }
+
+ if (buf && len<=n-sizeof(wxUint32))
+ *(wxUint32*)buf=0;
+
+ return len;
+}
+
+
+// swap 32bit MB to 32bit String
+size_t wxMBConvUTF32swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*(wxUint32*)psz && (!buf || len < n))
+ {
+ if (buf)
+ {
+ ((char *)buf)[0] = psz[3];
+ ((char *)buf)[1] = psz[2];
+ ((char *)buf)[2] = psz[1];
+ ((char *)buf)[3] = psz[0];
+ buf++;
+ }
+ len++;
+ psz += sizeof(wxUint32);
+ }
+
+ if (buf && len<n)
+ *buf=0;
+
+ return len;
+}
+
+
+// swap 32bit String to 32bit MB
+size_t wxMBConvUTF32swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*psz && (!buf || len < n))
+ {
+ if (buf)
+ {
+ *buf++ = ((char *)psz)[3];
+ *buf++ = ((char *)psz)[2];
+ *buf++ = ((char *)psz)[1];
+ *buf++ = ((char *)psz)[0];
+ }
+ len += sizeof(wxUint32);
+ psz++;
+ }
+
+ if (buf && len<=n-sizeof(wxUint32))
+ *(wxUint32*)buf=0;
+
+ return len;
+}
+
+
+#endif // WC_UTF16
+
+
+// ============================================================================
+// The classes doing conversion using the iconv_xxx() functions
+// ============================================================================
+
+#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.
+// [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
+
+#define ICONV_CHAR_CAST(x) ((ICONV_CONST char **)(x))
+
+// ----------------------------------------------------------------------------
+// wxMBConv_iconv: encapsulates an iconv character set
+// ----------------------------------------------------------------------------
+
+class wxMBConv_iconv : public wxMBConv
+{
+public:
+ wxMBConv_iconv(const wxChar *name);
+ virtual ~wxMBConv_iconv();
+
+ virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
+ virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
+
+ bool IsOk() const
+ { return (m2w != (iconv_t)-1) && (w2m != (iconv_t)-1); }
+
+protected:
+ // the iconv handlers used to translate from multibyte to wide char and in
+ // 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
+ // available on this machine, it will remain NULL
+ static const char *ms_wcCharsetName;
+
+ // true if the wide char encoding we use (i.e. ms_wcCharsetName) has
+ // different endian-ness than the native one
+ static bool ms_wcNeedsSwap;
+};
+
+const char *wxMBConv_iconv::ms_wcCharsetName = NULL;
+bool wxMBConv_iconv::ms_wcNeedsSwap = false;
+
+wxMBConv_iconv::wxMBConv_iconv(const wxChar *name)
+{
+ // Do it the hard way
+ char cname[100];
+ for (size_t i = 0; i < wxStrlen(name)+1; i++)
cname[i] = (char) name[i];
// check for charset that represents wchar_t:
if (ms_wcCharsetName == NULL)
{
- ms_wcNeedsSwap = FALSE;
+ ms_wcNeedsSwap = false;
// try charset with explicit bytesex info (e.g. "UCS-4LE"):
ms_wcCharsetName = WC_NAME_BEST;
{
ms_wcCharsetName = NULL;
- // VS: we must not output an error here, since wxWindows will safely
+ // VS: we must not output an error here, since wxWidgets will safely
// fall back to using wxEncodingConverter.
wxLogTrace(wxT("strconv"), wxT("Impossible to convert to/from charset '%s' with iconv, falling back to wxEncodingConverter."), name);
//wxLogError(
}
}
-IC_CharSet::~IC_CharSet()
+wxMBConv_iconv::~wxMBConv_iconv()
{
if ( m2w != (iconv_t)-1 )
iconv_close(m2w);
iconv_close(w2m);
}
-size_t IC_CharSet::MB2WC(wchar_t *buf, const char *psz, size_t n)
+size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
{
+#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;
return res;
}
-size_t IC_CharSet::WC2MB(char *buf, const wchar_t *psz, size_t n)
+size_t wxMBConv_iconv::WC2MB(char *buf, const wchar_t *psz, size_t n) const
{
+#if 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;
#endif // HAVE_ICONV
+
// ============================================================================
// Win32 conversion classes
// ============================================================================
-#if defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXUNIVERSAL__)
+#ifdef wxHAVE_WIN32_MB2WC
-#ifdef __WXWINE__
- #define WINE_CAST (WCHAR *)
-#else
- #define WINE_CAST
+// from utils.cpp
+#if wxUSE_FONTMAP
+extern WXDLLIMPEXP_BASE long wxCharsetToCodepage(const wxChar *charset);
+extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding);
#endif
-extern long wxCharsetToCodepage(const wxChar *charset); // from utils.cpp
-
-class CP_CharSet : public wxCharacterSet
+class wxMBConv_win32 : public wxMBConv
{
public:
- CP_CharSet(const wxChar* name)
- : wxCharacterSet(name)
- {
- m_CodePage = wxCharsetToCodepage(name);
- }
+ wxMBConv_win32()
+ {
+ m_CodePage = CP_ACP;
+ }
+
+#if wxUSE_FONTMAP
+ wxMBConv_win32(const wxChar* name)
+ {
+ m_CodePage = wxCharsetToCodepage(name);
+ }
+
+ wxMBConv_win32(wxFontEncoding encoding)
+ {
+ m_CodePage = wxEncodingToCodepage(encoding);
+ }
+#endif
- size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
+ size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const
{
+ // note that we have to use MB_ERR_INVALID_CHARS flag as it without it
+ // the behaviour is not compatible with the Unix version (using iconv)
+ // 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
- 0, // flags (none)
+ flags, // flags: fall on error
psz, // input string
-1, // its length (NUL-terminated)
- WINE_CAST buf, // output string
+ buf, // output string
buf ? n : 0 // size of output buffer
);
- // note that it returns # of written chars for buf != NULL and *size*
- // of the needed buffer for buf == NULL
- return len ? (buf ? len : len - 1) : (size_t)-1;
+ // note that it returns count of written chars for buf != NULL and size
+ // of the needed buffer for buf == NULL so in either case the length of
+ // the string (which never includes the terminating NUL) is one less
+ return len ? len - 1 : (size_t)-1;
}
- size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
+ size_t WC2MB(char *buf, const wchar_t *pwz, size_t n) const
{
+ /*
+ we have a problem here: by default, WideCharToMultiByte() may
+ replace characters unrepresentable in the target code page with bad
+ quality approximations such as turning "1/2" symbol (U+00BD) into
+ "1" for the code pages which don't have it and we, obviously, want
+ to avoid this at any price
+
+ the trouble is that this function does it _silently_, i.e. it won't
+ even tell us whether it did or not... Win98/2000 and higher provide
+ WC_NO_BEST_FIT_CHARS but it doesn't work for the older systems and
+ we have to resort to a round trip, i.e. check that converting back
+ results in the same string -- this is, of course, expensive but
+ otherwise we simply can't be sure to not garble the data.
+ */
+
+ // determine if we can rely on WC_NO_BEST_FIT_CHARS: according to MSDN
+ // it doesn't work with CJK encodings (which we test for rather roughly
+ // here...) nor with UTF-7/8 nor, of course, with Windows versions not
+ // supporting it
+ BOOL usedDef wxDUMMY_INITIALIZE(false);
+ BOOL *pUsedDef;
+ int flags;
+ if ( CanUseNoBestFit() && m_CodePage < 50000 )
+ {
+ // it's our lucky day
+ flags = WC_NO_BEST_FIT_CHARS;
+ pUsedDef = &usedDef;
+ }
+ else // old system or unsupported encoding
+ {
+ flags = 0;
+ pUsedDef = NULL;
+ }
+
const size_t len = ::WideCharToMultiByte
(
m_CodePage, // code page
- 0, // flags (none)
- WINE_CAST psz, // input string
+ flags, // either none or no best fit
+ pwz, // input string
-1, // it is (wide) NUL-terminated
buf, // output buffer
buf ? n : 0, // and its size
NULL, // default "replacement" char
- NULL // [out] was it used?
+ pUsedDef // [out] was it used?
);
- // see the comment above!
- return len ? (buf ? len : len - 1) : (size_t)-1;
+ if ( !len )
+ {
+ // function totally failed
+ return (size_t)-1;
+ }
+
+ // if we were really converting, check if we succeeded
+ if ( buf )
+ {
+ if ( flags )
+ {
+ // check if the conversion failed, i.e. if any replacements
+ // were done
+ if ( usedDef )
+ return (size_t)-1;
+ }
+ else // we must resort to double tripping...
+ {
+ wxWCharBuffer wcBuf(n);
+ if ( MB2WC(wcBuf.data(), buf, n) == (size_t)-1 ||
+ wcscmp(wcBuf, pwz) != 0 )
+ {
+ // we didn't obtain the same thing we started from, hence
+ // the conversion was lossy and we consider that it failed
+ return (size_t)-1;
+ }
+ }
+ }
+
+ // see the comment above for the reason of "len - 1"
+ return len - 1;
}
- bool usable() const
- { return m_CodePage != -1; }
+ bool IsOk() const { return m_CodePage != -1; }
+
+private:
+ static bool CanUseNoBestFit()
+ {
+ static int s_isWin98Or2k = -1;
+
+ if ( s_isWin98Or2k == -1 )
+ {
+ int verMaj, verMin;
+ switch ( wxGetOsVersion(&verMaj, &verMin) )
+ {
+ case wxWIN95:
+ s_isWin98Or2k = verMaj >= 4 && verMin >= 10;
+ break;
+
+ case wxWINDOWS_NT:
+ s_isWin98Or2k = verMaj >= 5;
+ break;
+
+ default:
+ // unknown, be conseravtive by default
+ s_isWin98Or2k = 0;
+ }
+
+ wxASSERT_MSG( s_isWin98Or2k != -1, _T("should be set above") );
+ }
+
+ return s_isWin98Or2k == 1;
+ }
-public:
long m_CodePage;
};
-#endif // defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXUNIVERSAL__)
+
+#endif // wxHAVE_WIN32_MB2WC
// ============================================================================
-// wxEncodingConverter based conversion classes
+// Cocoa conversion classes
// ============================================================================
-#if wxUSE_FONTMAP
+#if defined(__WXCOCOA__)
-class EC_CharSet : public wxCharacterSet
+// RN: There is no UTF-32 support in either Core Foundation or
+// Cocoa. Strangely enough, internally Core Foundation uses
+// UTF 32 internally quite a bit - its just not public (yet).
+
+#include <CoreFoundation/CFString.h>
+#include <CoreFoundation/CFStringEncodingExt.h>
+
+CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding)
+{
+ CFStringEncoding enc = kCFStringEncodingInvalidId ;
+ if ( encoding == wxFONTENCODING_DEFAULT )
+ {
+ enc = CFStringGetSystemEncoding();
+ }
+ else switch( encoding)
+ {
+ case wxFONTENCODING_ISO8859_1 :
+ enc = kCFStringEncodingISOLatin1 ;
+ break ;
+ case wxFONTENCODING_ISO8859_2 :
+ enc = kCFStringEncodingISOLatin2;
+ break ;
+ case wxFONTENCODING_ISO8859_3 :
+ enc = kCFStringEncodingISOLatin3 ;
+ break ;
+ case wxFONTENCODING_ISO8859_4 :
+ enc = kCFStringEncodingISOLatin4;
+ break ;
+ case wxFONTENCODING_ISO8859_5 :
+ enc = kCFStringEncodingISOLatinCyrillic;
+ break ;
+ case wxFONTENCODING_ISO8859_6 :
+ enc = kCFStringEncodingISOLatinArabic;
+ break ;
+ case wxFONTENCODING_ISO8859_7 :
+ enc = kCFStringEncodingISOLatinGreek;
+ break ;
+ case wxFONTENCODING_ISO8859_8 :
+ enc = kCFStringEncodingISOLatinHebrew;
+ break ;
+ case wxFONTENCODING_ISO8859_9 :
+ enc = kCFStringEncodingISOLatin5;
+ break ;
+ case wxFONTENCODING_ISO8859_10 :
+ enc = kCFStringEncodingISOLatin6;
+ break ;
+ case wxFONTENCODING_ISO8859_11 :
+ enc = kCFStringEncodingISOLatinThai;
+ break ;
+ case wxFONTENCODING_ISO8859_13 :
+ enc = kCFStringEncodingISOLatin7;
+ break ;
+ case wxFONTENCODING_ISO8859_14 :
+ enc = kCFStringEncodingISOLatin8;
+ break ;
+ case wxFONTENCODING_ISO8859_15 :
+ enc = kCFStringEncodingISOLatin9;
+ break ;
+
+ case wxFONTENCODING_KOI8 :
+ enc = kCFStringEncodingKOI8_R;
+ break ;
+ case wxFONTENCODING_ALTERNATIVE : // MS-DOS CP866
+ enc = kCFStringEncodingDOSRussian;
+ break ;
+
+// case wxFONTENCODING_BULGARIAN :
+// enc = ;
+// break ;
+
+ case wxFONTENCODING_CP437 :
+ enc =kCFStringEncodingDOSLatinUS ;
+ break ;
+ case wxFONTENCODING_CP850 :
+ enc = kCFStringEncodingDOSLatin1;
+ break ;
+ case wxFONTENCODING_CP852 :
+ enc = kCFStringEncodingDOSLatin2;
+ break ;
+ case wxFONTENCODING_CP855 :
+ enc = kCFStringEncodingDOSCyrillic;
+ break ;
+ case wxFONTENCODING_CP866 :
+ enc =kCFStringEncodingDOSRussian ;
+ break ;
+ case wxFONTENCODING_CP874 :
+ enc = kCFStringEncodingDOSThai;
+ break ;
+ case wxFONTENCODING_CP932 :
+ enc = kCFStringEncodingDOSJapanese;
+ break ;
+ case wxFONTENCODING_CP936 :
+ enc =kCFStringEncodingDOSChineseSimplif ;
+ break ;
+ case wxFONTENCODING_CP949 :
+ enc = kCFStringEncodingDOSKorean;
+ break ;
+ case wxFONTENCODING_CP950 :
+ enc = kCFStringEncodingDOSChineseTrad;
+ break ;
+ case wxFONTENCODING_CP1250 :
+ enc = kCFStringEncodingWindowsLatin2;
+ break ;
+ case wxFONTENCODING_CP1251 :
+ enc =kCFStringEncodingWindowsCyrillic ;
+ break ;
+ case wxFONTENCODING_CP1252 :
+ enc =kCFStringEncodingWindowsLatin1 ;
+ break ;
+ case wxFONTENCODING_CP1253 :
+ enc = kCFStringEncodingWindowsGreek;
+ break ;
+ case wxFONTENCODING_CP1254 :
+ enc = kCFStringEncodingWindowsLatin5;
+ break ;
+ case wxFONTENCODING_CP1255 :
+ enc =kCFStringEncodingWindowsHebrew ;
+ break ;
+ case wxFONTENCODING_CP1256 :
+ enc =kCFStringEncodingWindowsArabic ;
+ break ;
+ case wxFONTENCODING_CP1257 :
+ enc = kCFStringEncodingWindowsBalticRim;
+ break ;
+// This only really encodes to UTF7 (if that) evidently
+// case wxFONTENCODING_UTF7 :
+// enc = kCFStringEncodingNonLossyASCII ;
+// break ;
+ case wxFONTENCODING_UTF8 :
+ enc = kCFStringEncodingUTF8 ;
+ break ;
+ case wxFONTENCODING_EUC_JP :
+ enc = kCFStringEncodingEUC_JP;
+ break ;
+ case wxFONTENCODING_UTF16 :
+ enc = kCFStringEncodingUnicode ;
+ break ;
+ case wxFONTENCODING_MACROMAN :
+ enc = kCFStringEncodingMacRoman ;
+ break ;
+ case wxFONTENCODING_MACJAPANESE :
+ enc = kCFStringEncodingMacJapanese ;
+ break ;
+ case wxFONTENCODING_MACCHINESETRAD :
+ enc = kCFStringEncodingMacChineseTrad ;
+ break ;
+ case wxFONTENCODING_MACKOREAN :
+ enc = kCFStringEncodingMacKorean ;
+ break ;
+ case wxFONTENCODING_MACARABIC :
+ enc = kCFStringEncodingMacArabic ;
+ break ;
+ case wxFONTENCODING_MACHEBREW :
+ enc = kCFStringEncodingMacHebrew ;
+ break ;
+ case wxFONTENCODING_MACGREEK :
+ enc = kCFStringEncodingMacGreek ;
+ break ;
+ case wxFONTENCODING_MACCYRILLIC :
+ enc = kCFStringEncodingMacCyrillic ;
+ break ;
+ case wxFONTENCODING_MACDEVANAGARI :
+ enc = kCFStringEncodingMacDevanagari ;
+ break ;
+ case wxFONTENCODING_MACGURMUKHI :
+ enc = kCFStringEncodingMacGurmukhi ;
+ break ;
+ case wxFONTENCODING_MACGUJARATI :
+ enc = kCFStringEncodingMacGujarati ;
+ break ;
+ case wxFONTENCODING_MACORIYA :
+ enc = kCFStringEncodingMacOriya ;
+ break ;
+ case wxFONTENCODING_MACBENGALI :
+ enc = kCFStringEncodingMacBengali ;
+ break ;
+ case wxFONTENCODING_MACTAMIL :
+ enc = kCFStringEncodingMacTamil ;
+ break ;
+ case wxFONTENCODING_MACTELUGU :
+ enc = kCFStringEncodingMacTelugu ;
+ break ;
+ case wxFONTENCODING_MACKANNADA :
+ enc = kCFStringEncodingMacKannada ;
+ break ;
+ case wxFONTENCODING_MACMALAJALAM :
+ enc = kCFStringEncodingMacMalayalam ;
+ break ;
+ case wxFONTENCODING_MACSINHALESE :
+ enc = kCFStringEncodingMacSinhalese ;
+ break ;
+ case wxFONTENCODING_MACBURMESE :
+ enc = kCFStringEncodingMacBurmese ;
+ break ;
+ case wxFONTENCODING_MACKHMER :
+ enc = kCFStringEncodingMacKhmer ;
+ break ;
+ case wxFONTENCODING_MACTHAI :
+ enc = kCFStringEncodingMacThai ;
+ break ;
+ case wxFONTENCODING_MACLAOTIAN :
+ enc = kCFStringEncodingMacLaotian ;
+ break ;
+ case wxFONTENCODING_MACGEORGIAN :
+ enc = kCFStringEncodingMacGeorgian ;
+ break ;
+ case wxFONTENCODING_MACARMENIAN :
+ enc = kCFStringEncodingMacArmenian ;
+ break ;
+ case wxFONTENCODING_MACCHINESESIMP :
+ enc = kCFStringEncodingMacChineseSimp ;
+ break ;
+ case wxFONTENCODING_MACTIBETAN :
+ enc = kCFStringEncodingMacTibetan ;
+ break ;
+ case wxFONTENCODING_MACMONGOLIAN :
+ enc = kCFStringEncodingMacMongolian ;
+ break ;
+ case wxFONTENCODING_MACETHIOPIC :
+ enc = kCFStringEncodingMacEthiopic ;
+ break ;
+ case wxFONTENCODING_MACCENTRALEUR :
+ enc = kCFStringEncodingMacCentralEurRoman ;
+ break ;
+ case wxFONTENCODING_MACVIATNAMESE :
+ enc = kCFStringEncodingMacVietnamese ;
+ break ;
+ case wxFONTENCODING_MACARABICEXT :
+ enc = kCFStringEncodingMacExtArabic ;
+ break ;
+ case wxFONTENCODING_MACSYMBOL :
+ enc = kCFStringEncodingMacSymbol ;
+ break ;
+ case wxFONTENCODING_MACDINGBATS :
+ enc = kCFStringEncodingMacDingbats ;
+ break ;
+ case wxFONTENCODING_MACTURKISH :
+ enc = kCFStringEncodingMacTurkish ;
+ break ;
+ case wxFONTENCODING_MACCROATIAN :
+ enc = kCFStringEncodingMacCroatian ;
+ break ;
+ case wxFONTENCODING_MACICELANDIC :
+ enc = kCFStringEncodingMacIcelandic ;
+ break ;
+ case wxFONTENCODING_MACROMANIAN :
+ enc = kCFStringEncodingMacRomanian ;
+ break ;
+ case wxFONTENCODING_MACCELTIC :
+ enc = kCFStringEncodingMacCeltic ;
+ break ;
+ case wxFONTENCODING_MACGAELIC :
+ enc = kCFStringEncodingMacGaelic ;
+ break ;
+// case wxFONTENCODING_MACKEYBOARD :
+// enc = kCFStringEncodingMacKeyboardGlyphs ;
+// break ;
+ default :
+ // because gcc is picky
+ break ;
+ } ;
+ return enc ;
+}
+
+class wxMBConv_cocoa : public wxMBConv
{
public:
- // temporarily just use wxEncodingConverter stuff,
- // so that it works while a better implementation is built
- EC_CharSet(const wxChar* name) : wxCharacterSet(name),
- enc(wxFONTENCODING_SYSTEM)
+ wxMBConv_cocoa()
{
- if (name)
- enc = wxFontMapper::Get()->CharsetToEncoding(name, FALSE);
+ Init(CFStringGetSystemEncoding()) ;
+ }
- m_ok = m2w.Init(enc, wxFONTENCODING_UNICODE) &&
- w2m.Init(wxFONTENCODING_UNICODE, enc);
+#if wxUSE_FONTMAP
+ wxMBConv_cocoa(const wxChar* name)
+ {
+ Init( wxCFStringEncFromFontEnc(wxFontMapper::Get()->CharsetToEncoding(name, false) ) ) ;
}
+#endif
- size_t MB2WC(wchar_t *buf, const char *psz, size_t WXUNUSED(n))
+ wxMBConv_cocoa(wxFontEncoding encoding)
{
- size_t inbuf = strlen(psz);
- if (buf)
- m2w.Convert(psz,buf);
- return inbuf;
+ Init( wxCFStringEncFromFontEnc(encoding) );
}
- size_t WC2MB(char *buf, const wchar_t *psz, size_t WXUNUSED(n))
+ ~wxMBConv_cocoa()
{
- const size_t inbuf = wxWcslen(psz);
- if (buf)
- w2m.Convert(psz,buf);
+ }
- return inbuf;
+ void Init( CFStringEncoding encoding)
+ {
+ m_encoding = encoding ;
}
- bool usable() const { return m_ok; }
+ size_t MB2WC(wchar_t * szOut, const char * szUnConv, size_t nOutSize) const
+ {
+ wxASSERT(szUnConv);
-public:
- wxFontEncoding enc;
- wxEncodingConverter m2w, w2m;
+ CFStringRef theString = CFStringCreateWithBytes (
+ NULL, //the allocator
+ (const UInt8*)szUnConv,
+ strlen(szUnConv),
+ m_encoding,
+ false //no BOM/external representation
+ );
- // were we initialized successfully?
- bool m_ok;
+ wxASSERT(theString);
+
+ size_t nOutLength = CFStringGetLength(theString);
+
+ if (szOut == NULL)
+ {
+ CFRelease(theString);
+ return nOutLength;
+ }
+
+ CFRange theRange = { 0, nOutSize };
+
+#if SIZEOF_WCHAR_T == 4
+ UniChar* szUniCharBuffer = new UniChar[nOutSize];
+#endif
+
+ CFStringGetCharacters(theString, theRange, szUniCharBuffer);
+
+ CFRelease(theString);
+
+ szUniCharBuffer[nOutLength] = '\0' ;
+
+#if SIZEOF_WCHAR_T == 4
+ wxMBConvUTF16 converter ;
+ converter.MB2WC(szOut, (const char*)szUniCharBuffer , nOutSize ) ;
+ delete[] szUniCharBuffer;
+#endif
+
+ return nOutLength;
+ }
+
+ size_t WC2MB(char *szOut, const wchar_t *szUnConv, size_t nOutSize) const
+ {
+ wxASSERT(szUnConv);
+
+ size_t nRealOutSize;
+ size_t nBufSize = wxWcslen(szUnConv);
+ UniChar* szUniBuffer = (UniChar*) szUnConv;
+
+#if SIZEOF_WCHAR_T == 4
+ wxMBConvUTF16BE 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);
+#endif
+
+ CFStringRef theString = CFStringCreateWithCharactersNoCopy(
+ NULL, //allocator
+ szUniBuffer,
+ nBufSize,
+ kCFAllocatorNull //deallocator - we want to deallocate it ourselves
+ );
+
+ wxASSERT(theString);
+
+ //Note that CER puts a BOM when converting to unicode
+ //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);
+
+ nRealOutSize = CFStringGetLength(theString) + 1;
+ }
+ else
+ {
+ 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
+ );
+ }
+
+ CFRelease(theString);
+
+#if SIZEOF_WCHAR_T == 4
+ delete[] szUniBuffer;
+#endif
+
+ return nRealOutSize - 1;
+ }
+
+ bool IsOk() const
+ {
+ return m_encoding != kCFStringEncodingInvalidId &&
+ CFStringIsEncodingAvailable(m_encoding);
+ }
+
+private:
+ CFStringEncoding m_encoding ;
};
-#endif // wxUSE_FONTMAP
+#endif // defined(__WXCOCOA__)
-// ----------------------------------------------------------------------------
-// the function creating the wxCharacterSet for the specified charset on the
-// current system, trying all possibilities
-// ----------------------------------------------------------------------------
+// ============================================================================
+// Mac conversion classes
+// ============================================================================
+
+#if defined(__WXMAC__) && defined(TARGET_CARBON)
-static wxCharacterSet *wxGetCharacterSet(const wxChar *name)
+class wxMBConv_mac : public wxMBConv
{
- // check for the special case of ASCII charset
+public:
+ wxMBConv_mac()
+ {
+ Init(CFStringGetSystemEncoding()) ;
+ }
+
#if wxUSE_FONTMAP
- if ( wxFontMapper::Get()->CharsetToEncoding(name) == wxFONTENCODING_DEFAULT )
-#else // wxUSE_FONTMAP
- if ( !name )
-#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
+ wxMBConv_mac(const wxChar* name)
{
- // don't convert at all
- return NULL;
+ Init( wxMacGetSystemEncFromFontEnc(wxFontMapper::Get()->CharsetToEncoding(name, false) ) ) ;
+ }
+#endif
+
+ wxMBConv_mac(wxFontEncoding encoding)
+ {
+ Init( wxMacGetSystemEncFromFontEnc(encoding) );
}
- // the test above must have taken care of this case
- wxCHECK_MSG( name, NULL, _T("NULL name must be wxFONTENCODING_DEFAULT") );
+ ~wxMBConv_mac()
+ {
+ OSStatus status = noErr ;
+ status = TECDisposeConverter(m_MB2WC_converter);
+ status = TECDisposeConverter(m_WC2MB_converter);
+ }
- wxCharacterSet *cset;
- if ( wxStricmp(name, wxT("UTF8")) == 0 || wxStricmp(name, wxT("UTF-8")) == 0)
+ void Init( TextEncodingBase encoding)
{
- cset = new ID_CharSet(name, &wxConvUTF8);
+ OSStatus status = noErr ;
+ m_char_encoding = encoding ;
+ m_unicode_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode16BitFormat) ;
+
+ status = TECCreateConverter(&m_MB2WC_converter,
+ m_char_encoding,
+ m_unicode_encoding);
+ status = TECCreateConverter(&m_WC2MB_converter,
+ m_unicode_encoding,
+ m_char_encoding);
}
- else
+
+ size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const
{
-#ifdef HAVE_ICONV
- cset = new IC_CharSet(name);
-#else // !HAVE_ICONV
- cset = NULL;
-#endif // HAVE_ICONV/!HAVE_ICONV
+ OSStatus status = noErr ;
+ ByteCount byteOutLen ;
+ ByteCount byteInLen = strlen(psz) ;
+ wchar_t *tbuf = NULL ;
+ UniChar* ubuf = NULL ;
+ size_t res = 0 ;
+
+ if (buf == NULL)
+ {
+ //apple specs say at least 32
+ n = wxMax( 32 , byteInLen ) ;
+ tbuf = (wchar_t*) malloc( n * SIZEOF_WCHAR_T) ;
+ }
+ ByteCount byteBufferLen = n * sizeof( UniChar ) ;
+#if SIZEOF_WCHAR_T == 4
+ ubuf = (UniChar*) malloc( byteBufferLen + 2 ) ;
+#else
+ ubuf = (UniChar*) (buf ? buf : tbuf) ;
+#endif
+ status = TECConvertText(m_MB2WC_converter, (ConstTextPtr) psz , byteInLen, &byteInLen,
+ (TextPtr) ubuf , byteBufferLen, &byteOutLen);
+#if SIZEOF_WCHAR_T == 4
+ // we have to terminate here, because n might be larger for the trailing zero, and if UniChar
+ // is not properly terminated we get random characters at the end
+ ubuf[byteOutLen / sizeof( UniChar ) ] = 0 ;
+ wxMBConvUTF16BE converter ;
+ res = converter.MB2WC( (buf ? buf : tbuf) , (const char*)ubuf , n ) ;
+ free( ubuf ) ;
+#else
+ res = byteOutLen / sizeof( UniChar ) ;
+#endif
+ if ( buf == NULL )
+ free(tbuf) ;
+
+ if ( buf && res < n)
+ buf[res] = 0;
+
+ return res ;
}
- // it can only be NULL in this case
-#ifndef HAVE_ICONV
- if ( cset )
-#endif // !HAVE_ICONV
+ size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const
{
- if ( cset->usable() )
- return cset;
+ OSStatus status = noErr ;
+ ByteCount byteOutLen ;
+ ByteCount byteInLen = wxWcslen(psz) * SIZEOF_WCHAR_T ;
+
+ char *tbuf = NULL ;
- delete cset;
- cset = NULL;
+ if (buf == NULL)
+ {
+ //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
+ wxMBConvUTF16BE converter ;
+ size_t unicharlen = converter.WC2MB( NULL , psz , 0 ) ;
+ byteInLen = unicharlen ;
+ ubuf = (UniChar*) malloc( byteInLen + 2 ) ;
+ converter.WC2MB( (char*) ubuf , psz, unicharlen + 2 ) ;
+#else
+ ubuf = (UniChar*) psz ;
+#endif
+ status = TECConvertText(m_WC2MB_converter, (ConstTextPtr) ubuf , byteInLen, &byteInLen,
+ (TextPtr) (buf ? buf : tbuf) , byteBufferLen, &byteOutLen);
+#if SIZEOF_WCHAR_T == 4
+ free( ubuf ) ;
+#endif
+ if ( buf == NULL )
+ free(tbuf) ;
+
+ size_t res = byteOutLen ;
+ if ( buf && res < n)
+ {
+ buf[res] = 0;
+
+ //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 ;
}
-#if defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXUNIVERSAL__)
- cset = new CP_CharSet(name);
- if ( cset->usable() )
- return cset;
+ bool IsOk() const
+ { return m_MB2WC_converter != NULL && m_WC2MB_converter != NULL ; }
- delete cset;
- cset = NULL;
-#endif // defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXUNIVERSAL__)
+private:
+ TECObjectRef m_MB2WC_converter ;
+ TECObjectRef m_WC2MB_converter ;
+
+ TextEncodingBase m_char_encoding ;
+ TextEncodingBase m_unicode_encoding ;
+};
+
+#endif // defined(__WXMAC__) && defined(TARGET_CARBON)
+
+// ============================================================================
+// wxEncodingConverter based conversion classes
+// ============================================================================
#if wxUSE_FONTMAP
- cset = new EC_CharSet(name);
- if ( cset->usable() )
- return cset;
- delete cset;
- cset = NULL;
-#endif // wxUSE_FONTMAP
+class wxMBConv_wxwin : public wxMBConv
+{
+private:
+ void Init()
+ {
+ m_ok = m2w.Init(m_enc, wxFONTENCODING_UNICODE) &&
+ w2m.Init(wxFONTENCODING_UNICODE, m_enc);
+ }
- wxLogError(_("Cannot convert from encoding '%s'!"), name);
+public:
+ // temporarily just use wxEncodingConverter stuff,
+ // so that it works while a better implementation is built
+ wxMBConv_wxwin(const wxChar* name)
+ {
+ if (name)
+ m_enc = wxFontMapper::Get()->CharsetToEncoding(name, false);
+ else
+ m_enc = wxFONTENCODING_SYSTEM;
- return NULL;
-}
+ Init();
+ }
+
+ wxMBConv_wxwin(wxFontEncoding enc)
+ {
+ m_enc = enc;
+
+ Init();
+ }
+
+ size_t MB2WC(wchar_t *buf, const char *psz, size_t WXUNUSED(n)) const
+ {
+ size_t inbuf = strlen(psz);
+ if (buf)
+ {
+ if (!m2w.Convert(psz,buf))
+ return (size_t)-1;
+ }
+ return inbuf;
+ }
+
+ size_t WC2MB(char *buf, const wchar_t *psz, size_t WXUNUSED(n)) const
+ {
+ const size_t inbuf = wxWcslen(psz);
+ if (buf)
+ {
+ if (!w2m.Convert(psz,buf))
+ return (size_t)-1;
+ }
+
+ return inbuf;
+ }
+
+ bool IsOk() const { return m_ok; }
+
+public:
+ wxFontEncoding m_enc;
+ wxEncodingConverter m2w, w2m;
+
+ // were we initialized successfully?
+ bool m_ok;
+
+ DECLARE_NO_COPY_CLASS(wxMBConv_wxwin)
+};
+
+#endif // wxUSE_FONTMAP
// ============================================================================
// wxCSConv implementation
// ============================================================================
+void wxCSConv::Init()
+{
+ m_name = NULL;
+ m_convReal = NULL;
+ m_deferred = true;
+}
+
wxCSConv::wxCSConv(const wxChar *charset)
{
- m_name = (wxChar *)NULL;
- m_cset = (wxCharacterSet *) NULL;
- m_deferred = TRUE;
+ Init();
+
+ if ( charset )
+ {
+ SetName(charset);
+ }
+
+ m_encoding = wxFONTENCODING_SYSTEM;
+}
+
+wxCSConv::wxCSConv(wxFontEncoding encoding)
+{
+ if ( encoding == wxFONTENCODING_MAX || encoding == wxFONTENCODING_DEFAULT )
+ {
+ wxFAIL_MSG( _T("invalid encoding value in wxCSConv ctor") );
- SetName(charset);
+ encoding = wxFONTENCODING_SYSTEM;
+ }
+
+ Init();
+
+ m_encoding = encoding;
}
wxCSConv::~wxCSConv()
}
wxCSConv::wxCSConv(const wxCSConv& conv)
- : wxMBConv()
+ : wxMBConv()
{
- Clear();
+ Init();
+
SetName(conv.m_name);
+ m_encoding = conv.m_encoding;
}
wxCSConv& wxCSConv::operator=(const wxCSConv& conv)
{
Clear();
+
SetName(conv.m_name);
+ m_encoding = conv.m_encoding;
+
return *this;
}
void wxCSConv::Clear()
{
- if (m_name)
- free(m_name);
- if (m_cset)
- delete m_cset;
+ free(m_name);
+ delete m_convReal;
+
m_name = NULL;
- m_cset = NULL;
+ m_convReal = NULL;
}
void wxCSConv::SetName(const wxChar *charset)
if (charset)
{
m_name = wxStrdup(charset);
- m_deferred = TRUE;
+ m_deferred = true;
+ }
+}
+
+wxMBConv *wxCSConv::DoCreate() const
+{
+ // check for the special case of ASCII or ISO8859-1 charset: as we have
+ // special knowledge of it anyhow, we don't need to create a special
+ // conversion object
+ if ( m_encoding == wxFONTENCODING_ISO8859_1 )
+ {
+ // don't convert at all
+ return NULL;
+ }
+
+ // we trust OS to do conversion better than we can so try external
+ // conversion methods first
+ //
+ // the full order is:
+ // 1. OS conversion (iconv() under Unix or Win32 API)
+ // 2. hard coded conversions for UTF
+ // 3. wxEncodingConverter as fall back
+
+ // step (1)
+#ifdef HAVE_ICONV
+#if !wxUSE_FONTMAP
+ if ( m_name )
+#endif // !wxUSE_FONTMAP
+ {
+ wxString name(m_name);
+
+#if wxUSE_FONTMAP
+ if ( name.empty() )
+ name = wxFontMapper::Get()->GetEncodingName(m_encoding);
+#endif // wxUSE_FONTMAP
+
+ wxMBConv_iconv *conv = new wxMBConv_iconv(name);
+ if ( conv->IsOk() )
+ return conv;
+
+ delete conv;
+ }
+#endif // HAVE_ICONV
+
+#ifdef wxHAVE_WIN32_MB2WC
+ {
+#if wxUSE_FONTMAP
+ wxMBConv_win32 *conv = m_name ? new wxMBConv_win32(m_name)
+ : new wxMBConv_win32(m_encoding);
+ if ( conv->IsOk() )
+ return conv;
+
+ delete conv;
+#else
+ return NULL;
+#endif
+ }
+#endif // wxHAVE_WIN32_MB2WC
+#if defined(__WXMAC__)
+ {
+ if ( m_name || ( m_encoding < wxFONTENCODING_UTF16BE ) )
+ {
+
+#if wxUSE_FONTMAP
+ 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;
+
+ delete conv;
+ }
+ }
+#endif
+#if defined(__WXCOCOA__)
+ {
+ 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);
+#else
+ wxMBConv_cocoa *conv = new wxMBConv_cocoa(m_encoding);
+#endif
+ if ( conv->IsOk() )
+ return conv;
+
+ delete conv;
+ }
+ }
+#endif
+ // step (2)
+ wxFontEncoding enc = m_encoding;
+#if wxUSE_FONTMAP
+ if ( enc == wxFONTENCODING_SYSTEM && m_name )
+ {
+ // use "false" to suppress interactive dialogs -- we can be called from
+ // anywhere and popping up a dialog from here is the last thing we want to
+ // do
+ enc = wxFontMapper::Get()->CharsetToEncoding(m_name, false);
+ }
+#endif // wxUSE_FONTMAP
+
+ switch ( enc )
+ {
+ case wxFONTENCODING_UTF7:
+ return new wxMBConvUTF7;
+
+ case wxFONTENCODING_UTF8:
+ return new wxMBConvUTF8;
+
+ case wxFONTENCODING_UTF16BE:
+ return new wxMBConvUTF16BE;
+
+ case wxFONTENCODING_UTF16LE:
+ return new wxMBConvUTF16LE;
+
+ case wxFONTENCODING_UTF32BE:
+ return new wxMBConvUTF32BE;
+
+ case wxFONTENCODING_UTF32LE:
+ return new wxMBConvUTF32LE;
+
+ default:
+ // nothing to do but put here to suppress gcc warnings
+ ;
}
+
+ // step (3)
+#if wxUSE_FONTMAP
+ {
+ wxMBConv_wxwin *conv = m_name ? new wxMBConv_wxwin(m_name)
+ : new wxMBConv_wxwin(m_encoding);
+ if ( conv->IsOk() )
+ return conv;
+
+ delete conv;
+ }
+#endif // wxUSE_FONTMAP
+
+ // NB: This is a hack to prevent deadlock. What could otherwise happen
+ // in Unicode build: wxConvLocal creation ends up being here
+ // because of some failure and logs the error. But wxLog will try to
+ // attach timestamp, for which it will need wxConvLocal (to convert
+ // time to char* and then wchar_t*), but that fails, tries to log
+ // error, but wxLog has a (already locked) critical section that
+ // guards static buffer.
+ static bool alreadyLoggingError = false;
+ if (!alreadyLoggingError)
+ {
+ alreadyLoggingError = true;
+ wxLogError(_("Cannot convert from the charset '%s'!"),
+ m_name ? m_name
+ :
+#if wxUSE_FONTMAP
+ wxFontMapper::GetEncodingDescription(m_encoding).c_str()
+#else // !wxUSE_FONTMAP
+ wxString::Format(_("encoding %s"), m_encoding).c_str()
+#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
+ );
+ alreadyLoggingError = false;
+ }
+
+ return NULL;
}
-void wxCSConv::LoadNow()
+void wxCSConv::CreateConvIfNeeded() const
{
if ( m_deferred )
{
- // it would probably be better to make GetSystemEncodingName() always
- // available (i.e. even when wxUSE_INTL == 0)?
+ wxCSConv *self = (wxCSConv *)this; // const_cast
+
#if wxUSE_INTL
- if ( !m_name )
+ // if we don't have neither the name nor the encoding, use the default
+ // encoding for this system
+ if ( !m_name && m_encoding == wxFONTENCODING_SYSTEM )
{
- wxString name = wxLocale::GetSystemEncodingName();
- if ( !name.empty() )
- {
- SetName(name);
- }
+ self->m_name = wxStrdup(wxLocale::GetSystemEncodingName());
}
#endif // wxUSE_INTL
- // wxGetCharacterSet() complains about NULL name
- m_cset = m_name ? wxGetCharacterSet(m_name) : NULL;
- m_deferred = FALSE;
+ self->m_convReal = DoCreate();
+ self->m_deferred = false;
}
}
size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
{
- ((wxCSConv *)this)->LoadNow(); // discard constness
+ CreateConvIfNeeded();
- if (m_cset)
- return m_cset->MB2WC(buf, psz, n);
+ if (m_convReal)
+ return m_convReal->MB2WC(buf, psz, n);
// latin-1 (direct)
size_t len = strlen(psz);
size_t wxCSConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const
{
- ((wxCSConv *)this)->LoadNow(); // discard constness
+ CreateConvIfNeeded();
- if (m_cset)
- return m_cset->WC2MB(buf, psz, n);
+ if (m_convReal)
+ return m_convReal->WC2MB(buf, psz, n);
// latin-1 (direct)
const size_t len = wxWcslen(psz);
if (buf)
{
for (size_t c = 0; c <= len; c++)
- buf[c] = (psz[c] > 0xff) ? '?' : psz[c];
+ {
+ if (psz[c] > 0xFF)
+ return (size_t)-1;
+ buf[c] = (char)psz[c];
+ }
+ }
+ else
+ {
+ for (size_t c = 0; c <= len; c++)
+ {
+ if (psz[c] > 0xFF)
+ return (size_t)-1;
+ }
}
return len;
}
-#endif // wxUSE_WCHAR_T
+// ----------------------------------------------------------------------------
+// globals
+// ----------------------------------------------------------------------------
+
+#ifdef __WINDOWS__
+ static wxMBConv_win32 wxConvLibcObj;
+#elif defined(__WXMAC__) && !defined(__MACH__)
+ static wxMBConv_mac wxConvLibcObj ;
+#else
+ static wxMBConvLibc wxConvLibcObj;
+#endif
+
+static wxCSConv wxConvLocalObj(wxFONTENCODING_SYSTEM);
+static wxCSConv wxConvISO8859_1Obj(wxFONTENCODING_ISO8859_1);
+static wxMBConvUTF7 wxConvUTF7Obj;
+static wxMBConvUTF8 wxConvUTF8Obj;
+
+
+WXDLLIMPEXP_DATA_BASE(wxMBConv&) wxConvLibc = wxConvLibcObj;
+WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvLocal = wxConvLocalObj;
+WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvISO8859_1 = wxConvISO8859_1Obj;
+WXDLLIMPEXP_DATA_BASE(wxMBConvUTF7&) wxConvUTF7 = wxConvUTF7Obj;
+WXDLLIMPEXP_DATA_BASE(wxMBConvUTF8&) wxConvUTF8 = wxConvUTF8Obj;
+WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent = &wxConvLibcObj;
+
+#else // !wxUSE_WCHAR_T
+
+// stand-ins in absence of wchar_t
+WXDLLIMPEXP_DATA_BASE(wxMBConv) wxConvLibc,
+ wxConvISO8859_1,
+ wxConvLocal,
+ wxConvUTF8;
+
+#endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T
projects / wxWidgets.git / blobdiff