///////////////////////////////////////////////////////////////////////////// // Name: src/common/strconv.cpp // Purpose: Unicode conversion classes // Author: Ove Kaaven, Robert Roebling, Vadim Zeitlin, Vaclav Slavik, // Ryan Norton, Fredrik Roubert (UTF7) // Modified by: // Created: 29/01/98 // RCS-ID: $Id: strconv.cpp 64156 2010-04-27 08:52:30Z VZ $ // Copyright: (c) 1999 Ove Kaaven, Robert Roebling, Vaclav Slavik // (c) 2000-2003 Vadim Zeitlin // (c) 2004 Ryan Norton, Fredrik Roubert // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifndef WX_PRECOMP #ifdef __WXMSW__ #include "wx/msw/missing.h" #endif #include "wx/intl.h" #include "wx/log.h" #include "wx/utils.h" #include "wx/hashmap.h" #endif #include "wx/strconv.h" #if wxUSE_WCHAR_T #ifdef __WINDOWS__ #include "wx/msw/private.h" #endif #ifndef __WXWINCE__ #include #endif #include #include #include #if defined(__WIN32__) && !defined(__WXMICROWIN__) #define wxHAVE_WIN32_MB2WC #endif #ifdef __SALFORDC__ #include #endif #ifdef HAVE_ICONV #include #include "wx/thread.h" #endif #include "wx/encconv.h" #include "wx/fontmap.h" #ifdef __WXMAC__ #ifndef __DARWIN__ #include #include #include #endif // includes Mac headers #include "wx/mac/private.h" #include "wx/thread.h" #endif #define TRACE_STRCONV _T("strconv") // WC_UTF16 is defined only if sizeof(wchar_t) == 2, otherwise it's supposed to // be 4 bytes #if SIZEOF_WCHAR_T == 2 #define WC_UTF16 #endif // ============================================================================ // implementation // ============================================================================ // helper function of cMB2WC(): check if n bytes at this location are all NUL static bool NotAllNULs(const char *p, size_t n) { while ( n && *p++ == '\0' ) n--; return n != 0; } // ---------------------------------------------------------------------------- // UTF-16 en/decoding to/from UCS-4 with surrogates handling // ---------------------------------------------------------------------------- static size_t encode_utf16(wxUint32 input, wxUint16 *output) { if (input <= 0xffff) { if (output) *output = (wxUint16) input; return 1; } else if (input >= 0x110000) { return wxCONV_FAILED; } else { if (output) { *output++ = (wxUint16) ((input >> 10) + 0xd7c0); *output = (wxUint16) ((input & 0x3ff) + 0xdc00); } return 2; } } static size_t decode_utf16(const wxUint16* input, wxUint32& output) { if ((*input < 0xd800) || (*input > 0xdfff)) { output = *input; return 1; } else if ((input[1] < 0xdc00) || (input[1] > 0xdfff)) { output = *input; return wxCONV_FAILED; } else { output = ((input[0] - 0xd7c0) << 10) + (input[1] - 0xdc00); return 2; } } #ifdef WC_UTF16 typedef wchar_t wxDecodeSurrogate_t; #else // !WC_UTF16 typedef wxUint16 wxDecodeSurrogate_t; #endif // WC_UTF16/!WC_UTF16 // returns the next UTF-32 character from the wchar_t buffer and advances the // pointer to the character after this one // // if an invalid character is found, *pSrc is set to NULL, the caller must // check for this static wxUint32 wxDecodeSurrogate(const wxDecodeSurrogate_t **pSrc) { wxUint32 out; const size_t n = decode_utf16(wx_reinterpret_cast(const wxUint16 *, *pSrc), out); if ( n == wxCONV_FAILED ) *pSrc = NULL; else *pSrc += n; return out; } // ---------------------------------------------------------------------------- // wxMBConv // ---------------------------------------------------------------------------- size_t wxMBConv::ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen) const { // although new conversion classes are supposed to implement this function // directly, the existins ones only implement the old MB2WC() and so, to // avoid to have to rewrite all conversion classes at once, we provide a // default (but not efficient) implementation of this one in terms of the // old function by copying the input to ensure that it's NUL-terminated and // then using MB2WC() to convert it // the number of chars [which would be] written to dst [if it were not NULL] size_t dstWritten = 0; // the number of NULs terminating this string size_t nulLen = 0; // not really needed, but just to avoid warnings // if we were not given the input size we just have to assume that the // string is properly terminated as we have no way of knowing how long it // is anyhow, but if we do have the size check whether there are enough // NULs at the end wxCharBuffer bufTmp; const char *srcEnd; if ( srcLen != wxNO_LEN ) { // we need to know how to find the end of this string nulLen = GetMBNulLen(); if ( nulLen == wxCONV_FAILED ) return wxCONV_FAILED; // if there are enough NULs we can avoid the copy if ( srcLen < nulLen || NotAllNULs(src + srcLen - nulLen, nulLen) ) { // make a copy in order to properly NUL-terminate the string bufTmp = wxCharBuffer(srcLen + nulLen - 1 /* 1 will be added */); char * const p = bufTmp.data(); memcpy(p, src, srcLen); for ( char *s = p + srcLen; s < p + srcLen + nulLen; s++ ) *s = '\0'; src = bufTmp; } srcEnd = src + srcLen; } else // quit after the first loop iteration { srcEnd = NULL; } for ( ;; ) { // try to convert the current chunk size_t lenChunk = MB2WC(NULL, src, 0); if ( lenChunk == wxCONV_FAILED ) return wxCONV_FAILED; lenChunk++; // for the L'\0' at the end of this chunk dstWritten += lenChunk; if ( lenChunk == 1 ) { // nothing left in the input string, conversion succeeded break; } if ( dst ) { if ( dstWritten > dstLen ) return wxCONV_FAILED; if ( MB2WC(dst, src, lenChunk) == wxCONV_FAILED ) return wxCONV_FAILED; dst += lenChunk; } if ( !srcEnd ) { // we convert just one chunk in this case as this is the entire // string anyhow break; } // advance the input pointer past the end of this chunk while ( NotAllNULs(src, nulLen) ) { // notice that we must skip over multiple bytes here as we suppose // that if NUL takes 2 or 4 bytes, then all the other characters do // too and so if advanced by a single byte we might erroneously // detect sequences of NUL bytes in the middle of the input src += nulLen; } src += nulLen; // skipping over its terminator as well // note that ">=" (and not just "==") is needed here as the terminator // we skipped just above could be inside or just after the buffer // delimited by inEnd if ( src >= srcEnd ) break; } return dstWritten; } size_t wxMBConv::FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen) const { // the number of chars [which would be] written to dst [if it were not NULL] size_t dstWritten = 0; // make a copy of the input string unless it is already properly // NUL-terminated // // if we don't know its length we have no choice but to assume that it is, // indeed, properly terminated wxWCharBuffer bufTmp; if ( srcLen == wxNO_LEN ) { srcLen = wxWcslen(src) + 1; } else if ( srcLen != 0 && src[srcLen - 1] != L'\0' ) { // make a copy in order to properly NUL-terminate the string bufTmp = wxWCharBuffer(srcLen); memcpy(bufTmp.data(), src, srcLen * sizeof(wchar_t)); src = bufTmp; } const size_t lenNul = GetMBNulLen(); for ( const wchar_t * const srcEnd = src + srcLen; src < srcEnd; src += wxWcslen(src) + 1 /* skip L'\0' too */ ) { // try to convert the current chunk size_t lenChunk = WC2MB(NULL, src, 0); if ( lenChunk == wxCONV_FAILED ) return wxCONV_FAILED; lenChunk += lenNul; dstWritten += lenChunk; if ( dst ) { if ( dstWritten > dstLen ) return wxCONV_FAILED; if ( WC2MB(dst, src, lenChunk) == wxCONV_FAILED ) return wxCONV_FAILED; dst += lenChunk; } } return dstWritten; } size_t wxMBConv::MB2WC(wchar_t *outBuff, const char *inBuff, size_t outLen) const { size_t rc = ToWChar(outBuff, outLen, inBuff); if ( rc != wxCONV_FAILED ) { // ToWChar() returns the buffer length, i.e. including the trailing // NUL, while this method doesn't take it into account rc--; } return rc; } size_t wxMBConv::WC2MB(char *outBuff, const wchar_t *inBuff, size_t outLen) const { size_t rc = FromWChar(outBuff, outLen, inBuff); if ( rc != wxCONV_FAILED ) { rc -= GetMBNulLen(); } return rc; } wxMBConv::~wxMBConv() { // nothing to do here (necessary for Darwin linking probably) } const wxWCharBuffer wxMBConv::cMB2WC(const char *psz) const { if ( psz ) { // calculate the length of the buffer needed first const size_t nLen = MB2WC(NULL, psz, 0); if ( nLen != wxCONV_FAILED ) { // now do the actual conversion wxWCharBuffer buf(nLen /* +1 added implicitly */); // +1 for the trailing NULL if ( MB2WC(buf.data(), psz, nLen + 1) != wxCONV_FAILED ) return buf; } } return wxWCharBuffer(); } const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *pwz) const { if ( pwz ) { const size_t nLen = WC2MB(NULL, pwz, 0); if ( nLen != wxCONV_FAILED ) { // extra space for trailing NUL(s) static const size_t extraLen = GetMaxMBNulLen(); wxCharBuffer buf(nLen + extraLen - 1); if ( WC2MB(buf.data(), pwz, nLen + extraLen) != wxCONV_FAILED ) return buf; } } return wxCharBuffer(); } const wxWCharBuffer wxMBConv::cMB2WC(const char *inBuff, size_t inLen, size_t *outLen) const { const size_t dstLen = ToWChar(NULL, 0, inBuff, inLen); if ( dstLen != wxCONV_FAILED ) { wxWCharBuffer wbuf(dstLen - 1); if ( ToWChar(wbuf.data(), dstLen, inBuff, inLen) != wxCONV_FAILED ) { if ( outLen ) { *outLen = dstLen; if ( wbuf[dstLen - 1] == L'\0' ) (*outLen)--; } return wbuf; } } if ( outLen ) *outLen = 0; return wxWCharBuffer(); } const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *inBuff, size_t inLen, size_t *outLen) const { size_t dstLen = FromWChar(NULL, 0, inBuff, inLen); if ( dstLen != wxCONV_FAILED ) { // special case of empty input: can't allocate 0 size buffer below as // wxCharBuffer insists on NUL-terminating it wxCharBuffer buf(dstLen ? dstLen - 1 : 1); if ( FromWChar(buf.data(), dstLen, inBuff, inLen) != wxCONV_FAILED ) { if ( outLen ) { *outLen = dstLen; const size_t nulLen = GetMBNulLen(); if ( dstLen >= nulLen && !NotAllNULs(buf.data() + dstLen - nulLen, nulLen) ) { // in this case the output is NUL-terminated and we're not // supposed to count NUL *outLen -= nulLen; } } return buf; } } if ( outLen ) *outLen = 0; return wxCharBuffer(); } // ---------------------------------------------------------------------------- // 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); } // ---------------------------------------------------------------------------- // wxConvBrokenFileNames // ---------------------------------------------------------------------------- #ifdef __UNIX__ wxConvBrokenFileNames::wxConvBrokenFileNames(const wxChar *charset) { if ( !charset || wxStricmp(charset, _T("UTF-8")) == 0 || wxStricmp(charset, _T("UTF8")) == 0 ) m_conv = new wxMBConvUTF8(wxMBConvUTF8::MAP_INVALID_UTF8_TO_PUA); else m_conv = new wxCSConv(charset); } #endif // __UNIX__ // ---------------------------------------------------------------------------- // UTF-7 // ---------------------------------------------------------------------------- // Implementation (C) 2004 Fredrik Roubert // // BASE64 decoding table // static const unsigned char utf7unb64[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3e, 0xff, 0xff, 0xff, 0x3f, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; size_t wxMBConvUTF7::MB2WC(wchar_t *buf, const char *psz, size_t n) const { 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 // start of BASE64 encoded string { bool lsb, ok; unsigned int d, l; for ( ok = lsb = false, d = 0, l = 0; (cc = utf7unb64[(unsigned char)*psz]) != 0xff; psz++ ) { d <<= 6; d += cc; for (l += 6; l >= 8; lsb = !lsb) { unsigned char c = (unsigned char)((d >> (l -= 8)) % 256); if (lsb) { if (buf) *buf++ |= c; len ++; } else { if (buf) *buf = (wchar_t)(c << 8); } ok = true; } } if ( !ok ) { // in valid UTF7 we should have valid characters after '+' return wxCONV_FAILED; } if (*psz == '-') psz++; } } if ( buf && (len < n) ) *buf = '\0'; return len; } // // 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 { 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 wxCONV_FAILED; } #endif else { if (buf) *buf++ = '+'; len++; if (cc != '+') { // BASE64 encode string unsigned int lsb, d, l; for (d = 0, l = 0; /*nothing*/; 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 // ---------------------------------------------------------------------------- static wxUint32 utf8_max[]= { 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff, 0xffffffff }; // boundaries of the private use area we use to (temporarily) remap invalid // characters invalid in a UTF-8 encoded string const wxUint32 wxUnicodePUA = 0x100000; const wxUint32 wxUnicodePUAEnd = wxUnicodePUA + 256; size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const { size_t len = 0; while (*psz && ((!buf) || (len < n))) { const char *opsz = psz; bool invalid = false; 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++; // escape the escape character for octal escapes if ((m_options & MAP_INVALID_UTF8_TO_OCTAL) && cc == '\\' && (!buf || len < n)) { if (buf) *buf++ = cc; len++; } } else { cnt--; if (!cnt) { // invalid UTF-8 sequence invalid = true; } else { unsigned ocnt = cnt - 1; wxUint32 res = cc & (0x3f >> cnt); while (cnt--) { cc = *psz; if ((cc & 0xC0) != 0x80) { // invalid UTF-8 sequence invalid = true; break; } psz++; res = (res << 6) | (cc & 0x3f); } if (invalid || res <= utf8_max[ocnt]) { // illegal UTF-8 encoding invalid = true; } else if ((m_options & MAP_INVALID_UTF8_TO_PUA) && res >= wxUnicodePUA && res < wxUnicodePUAEnd) { // if one of our PUA characters turns up externally // it must also be treated as an illegal sequence // (a bit like you have to escape an escape character) invalid = true; } else { #ifdef WC_UTF16 // cast is ok because wchar_t == wxUuint16 if WC_UTF16 size_t pa = encode_utf16(res, (wxUint16 *)buf); if (pa == wxCONV_FAILED) { invalid = true; } else { if (buf) buf += pa; len += pa; } #else // !WC_UTF16 if (buf) *buf++ = (wchar_t)res; len++; #endif // WC_UTF16/!WC_UTF16 } } if (invalid) { if (m_options & MAP_INVALID_UTF8_TO_PUA) { while (opsz < psz && (!buf || len < n)) { #ifdef WC_UTF16 // cast is ok because wchar_t == wxUuint16 if WC_UTF16 size_t pa = encode_utf16((unsigned char)*opsz + wxUnicodePUA, (wxUint16 *)buf); wxASSERT(pa != wxCONV_FAILED); if (buf) buf += pa; opsz++; len += pa; #else if (buf) *buf++ = (wchar_t)(wxUnicodePUA + (unsigned char)*opsz); opsz++; len++; #endif } } else if (m_options & MAP_INVALID_UTF8_TO_OCTAL) { while (opsz < psz && (!buf || len < n)) { if ( buf && len + 3 < n ) { unsigned char on = *opsz; *buf++ = L'\\'; *buf++ = (wchar_t)( L'0' + on / 0100 ); *buf++ = (wchar_t)( L'0' + (on % 0100) / 010 ); *buf++ = (wchar_t)( L'0' + on % 010 ); } opsz++; len += 4; } } else // MAP_INVALID_UTF8_NOT { return wxCONV_FAILED; } } } } if (buf && (len < n)) *buf = 0; return len; } static inline bool isoctal(wchar_t wch) { return L'0' <= wch && wch <= L'7'; } size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const { size_t len = 0; while (*psz && ((!buf) || (len < n))) { wxUint32 cc; #ifdef WC_UTF16 // cast is ok for WC_UTF16 size_t pa = decode_utf16((const wxUint16 *)psz, cc); psz += (pa == wxCONV_FAILED) ? 1 : pa; #else cc = (*psz++) & 0x7fffffff; #endif if ( (m_options & MAP_INVALID_UTF8_TO_PUA) && cc >= wxUnicodePUA && cc < wxUnicodePUAEnd ) { if (buf) *buf++ = (char)(cc - wxUnicodePUA); len++; } else if ( (m_options & MAP_INVALID_UTF8_TO_OCTAL) && cc == L'\\' && psz[0] == L'\\' ) { if (buf) *buf++ = (char)cc; psz++; len++; } else if ( (m_options & MAP_INVALID_UTF8_TO_OCTAL) && cc == L'\\' && isoctal(psz[0]) && isoctal(psz[1]) && isoctal(psz[2]) ) { if (buf) { *buf++ = (char) ((psz[0] - L'0') * 0100 + (psz[1] - L'0') * 010 + (psz[2] - L'0')); } psz += 3; len++; } else { unsigned cnt; for (cnt = 0; cc > utf8_max[cnt]; cnt++) { } if (!cnt) { // plain ASCII char if (buf) *buf++ = (char) cc; len++; } else { len += cnt + 1; if (buf) { *buf++ = (char) ((-128 >> cnt) | ((cc >> (cnt * 6)) & (0x3f >> cnt))); while (cnt--) *buf++ = (char) (0x80 | ((cc >> (cnt * 6)) & 0x3f)); } } } } if (buf && (len < n)) *buf = 0; return len; } // ============================================================================ // UTF-16 // ============================================================================ #ifdef WORDS_BIGENDIAN #define wxMBConvUTF16straight wxMBConvUTF16BE #define wxMBConvUTF16swap wxMBConvUTF16LE #else #define wxMBConvUTF16swap wxMBConvUTF16BE #define wxMBConvUTF16straight wxMBConvUTF16LE #endif /* static */ size_t wxMBConvUTF16Base::GetLength(const char *src, size_t srcLen) { if ( srcLen == wxNO_LEN ) { // count the number of bytes in input, including the trailing NULs const wxUint16 *inBuff = wx_reinterpret_cast(const wxUint16 *, src); for ( srcLen = 1; *inBuff++; srcLen++ ) ; srcLen *= BYTES_PER_CHAR; } else // we already have the length { // we can only convert an entire number of UTF-16 characters if ( srcLen % BYTES_PER_CHAR ) return wxCONV_FAILED; } return srcLen; } // case when in-memory representation is UTF-16 too #ifdef WC_UTF16 // ---------------------------------------------------------------------------- // conversions without endianness change // ---------------------------------------------------------------------------- size_t wxMBConvUTF16straight::ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen) const { // set up the scene for using memcpy() (which is presumably more efficient // than copying the bytes one by one) srcLen = GetLength(src, srcLen); if ( srcLen == wxNO_LEN ) return wxCONV_FAILED; const size_t inLen = srcLen / BYTES_PER_CHAR; if ( dst ) { if ( dstLen < inLen ) return wxCONV_FAILED; memcpy(dst, src, srcLen); } return inLen; } size_t wxMBConvUTF16straight::FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen) const { if ( srcLen == wxNO_LEN ) srcLen = wxWcslen(src) + 1; srcLen *= BYTES_PER_CHAR; if ( dst ) { if ( dstLen < srcLen ) return wxCONV_FAILED; memcpy(dst, src, srcLen); } return srcLen; } // ---------------------------------------------------------------------------- // endian-reversing conversions // ---------------------------------------------------------------------------- size_t wxMBConvUTF16swap::ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen) const { srcLen = GetLength(src, srcLen); if ( srcLen == wxNO_LEN ) return wxCONV_FAILED; srcLen /= BYTES_PER_CHAR; if ( dst ) { if ( dstLen < srcLen ) return wxCONV_FAILED; const wxUint16 *inBuff = wx_reinterpret_cast(const wxUint16 *, src); for ( size_t n = 0; n < srcLen; n++, inBuff++ ) { *dst++ = wxUINT16_SWAP_ALWAYS(*inBuff); } } return srcLen; } size_t wxMBConvUTF16swap::FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen) const { if ( srcLen == wxNO_LEN ) srcLen = wxWcslen(src) + 1; srcLen *= BYTES_PER_CHAR; if ( dst ) { if ( dstLen < srcLen ) return wxCONV_FAILED; wxUint16 *outBuff = wx_reinterpret_cast(wxUint16 *, dst); for ( size_t n = 0; n < srcLen; n += BYTES_PER_CHAR, src++ ) { *outBuff++ = wxUINT16_SWAP_ALWAYS(*src); } } return srcLen; } #else // !WC_UTF16: wchar_t is UTF-32 // ---------------------------------------------------------------------------- // conversions without endianness change // ---------------------------------------------------------------------------- size_t wxMBConvUTF16straight::ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen) const { srcLen = GetLength(src, srcLen); if ( srcLen == wxNO_LEN ) return wxCONV_FAILED; const size_t inLen = srcLen / BYTES_PER_CHAR; if ( !dst ) { // optimization: return maximal space which could be needed for this // string even if the real size could be smaller if the buffer contains // any surrogates return inLen; } size_t outLen = 0; const wxUint16 *inBuff = wx_reinterpret_cast(const wxUint16 *, src); for ( const wxUint16 * const inEnd = inBuff + inLen; inBuff < inEnd; ) { const wxUint32 ch = wxDecodeSurrogate(&inBuff); if ( !inBuff ) return wxCONV_FAILED; if ( ++outLen > dstLen ) return wxCONV_FAILED; *dst++ = ch; } return outLen; } size_t wxMBConvUTF16straight::FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen) const { if ( srcLen == wxNO_LEN ) srcLen = wxWcslen(src) + 1; size_t outLen = 0; wxUint16 *outBuff = wx_reinterpret_cast(wxUint16 *, dst); for ( size_t n = 0; n < srcLen; n++ ) { wxUint16 cc[2]; const size_t numChars = encode_utf16(*src++, cc); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; outLen += numChars * BYTES_PER_CHAR; if ( outBuff ) { if ( outLen > dstLen ) return wxCONV_FAILED; *outBuff++ = cc[0]; if ( numChars == 2 ) { // second character of a surrogate *outBuff++ = cc[1]; } } } return outLen; } // ---------------------------------------------------------------------------- // endian-reversing conversions // ---------------------------------------------------------------------------- size_t wxMBConvUTF16swap::ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen) const { srcLen = GetLength(src, srcLen); if ( srcLen == wxNO_LEN ) return wxCONV_FAILED; const size_t inLen = srcLen / BYTES_PER_CHAR; if ( !dst ) { // optimization: return maximal space which could be needed for this // string even if the real size could be smaller if the buffer contains // any surrogates return inLen; } size_t outLen = 0; const wxUint16 *inBuff = wx_reinterpret_cast(const wxUint16 *, src); for ( const wxUint16 * const inEnd = inBuff + inLen; inBuff < inEnd; ) { wxUint32 ch; wxUint16 tmp[2]; tmp[0] = wxUINT16_SWAP_ALWAYS(*inBuff); inBuff++; tmp[1] = wxUINT16_SWAP_ALWAYS(*inBuff); const size_t numChars = decode_utf16(tmp, ch); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; if ( numChars == 2 ) inBuff++; if ( ++outLen > dstLen ) return wxCONV_FAILED; *dst++ = ch; } return outLen; } size_t wxMBConvUTF16swap::FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen) const { if ( srcLen == wxNO_LEN ) srcLen = wxWcslen(src) + 1; size_t outLen = 0; wxUint16 *outBuff = wx_reinterpret_cast(wxUint16 *, dst); for ( const wchar_t *srcEnd = src + srcLen; src < srcEnd; src++ ) { wxUint16 cc[2]; const size_t numChars = encode_utf16(*src, cc); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; outLen += numChars * BYTES_PER_CHAR; if ( outBuff ) { if ( outLen > dstLen ) return wxCONV_FAILED; *outBuff++ = wxUINT16_SWAP_ALWAYS(cc[0]); if ( numChars == 2 ) { // second character of a surrogate *outBuff++ = wxUINT16_SWAP_ALWAYS(cc[1]); } } } return outLen; } #endif // WC_UTF16/!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; /* static */ size_t wxMBConvUTF32Base::GetLength(const char *src, size_t srcLen) { if ( srcLen == wxNO_LEN ) { // count the number of bytes in input, including the trailing NULs const wxUint32 *inBuff = wx_reinterpret_cast(const wxUint32 *, src); for ( srcLen = 1; *inBuff++; srcLen++ ) ; srcLen *= BYTES_PER_CHAR; } else // we already have the length { // we can only convert an entire number of UTF-32 characters if ( srcLen % BYTES_PER_CHAR ) return wxCONV_FAILED; } return srcLen; } // case when in-memory representation is UTF-16 #ifdef WC_UTF16 // ---------------------------------------------------------------------------- // conversions without endianness change // ---------------------------------------------------------------------------- size_t wxMBConvUTF32straight::ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen) const { srcLen = GetLength(src, srcLen); if ( srcLen == wxNO_LEN ) return wxCONV_FAILED; const wxUint32 *inBuff = wx_reinterpret_cast(const wxUint32 *, src); const size_t inLen = srcLen / BYTES_PER_CHAR; size_t outLen = 0; for ( size_t n = 0; n < inLen; n++ ) { wxUint16 cc[2]; const size_t numChars = encode_utf16(*inBuff++, cc); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; outLen += numChars; if ( dst ) { if ( outLen > dstLen ) return wxCONV_FAILED; *dst++ = cc[0]; if ( numChars == 2 ) { // second character of a surrogate *dst++ = cc[1]; } } } return outLen; } size_t wxMBConvUTF32straight::FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen) const { if ( srcLen == wxNO_LEN ) srcLen = wxWcslen(src) + 1; if ( !dst ) { // optimization: return maximal space which could be needed for this // string instead of the exact amount which could be less if there are // any surrogates in the input // // we consider that surrogates are rare enough to make it worthwhile to // avoid running the loop below at the cost of slightly extra memory // consumption return srcLen * BYTES_PER_CHAR; } wxUint32 *outBuff = wx_reinterpret_cast(wxUint32 *, dst); size_t outLen = 0; for ( const wchar_t * const srcEnd = src + srcLen; src < srcEnd; ) { const wxUint32 ch = wxDecodeSurrogate(&src); if ( !src ) return wxCONV_FAILED; outLen += BYTES_PER_CHAR; if ( outLen > dstLen ) return wxCONV_FAILED; *outBuff++ = ch; } return outLen; } // ---------------------------------------------------------------------------- // endian-reversing conversions // ---------------------------------------------------------------------------- size_t wxMBConvUTF32swap::ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen) const { srcLen = GetLength(src, srcLen); if ( srcLen == wxNO_LEN ) return wxCONV_FAILED; const wxUint32 *inBuff = wx_reinterpret_cast(const wxUint32 *, src); const size_t inLen = srcLen / BYTES_PER_CHAR; size_t outLen = 0; for ( size_t n = 0; n < inLen; n++, inBuff++ ) { wxUint16 cc[2]; const size_t numChars = encode_utf16(wxUINT32_SWAP_ALWAYS(*inBuff), cc); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; outLen += numChars; if ( dst ) { if ( outLen > dstLen ) return wxCONV_FAILED; *dst++ = cc[0]; if ( numChars == 2 ) { // second character of a surrogate *dst++ = cc[1]; } } } return outLen; } size_t wxMBConvUTF32swap::FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen) const { if ( srcLen == wxNO_LEN ) srcLen = wxWcslen(src) + 1; if ( !dst ) { // optimization: return maximal space which could be needed for this // string instead of the exact amount which could be less if there are // any surrogates in the input // // we consider that surrogates are rare enough to make it worthwhile to // avoid running the loop below at the cost of slightly extra memory // consumption return srcLen*BYTES_PER_CHAR; } wxUint32 *outBuff = wx_reinterpret_cast(wxUint32 *, dst); size_t outLen = 0; for ( const wchar_t * const srcEnd = src + srcLen; src < srcEnd; ) { const wxUint32 ch = wxDecodeSurrogate(&src); if ( !src ) return wxCONV_FAILED; outLen += BYTES_PER_CHAR; if ( outLen > dstLen ) return wxCONV_FAILED; *outBuff++ = wxUINT32_SWAP_ALWAYS(ch); } return outLen; } #else // !WC_UTF16: wchar_t is UTF-32 // ---------------------------------------------------------------------------- // conversions without endianness change // ---------------------------------------------------------------------------- size_t wxMBConvUTF32straight::ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen) const { // use memcpy() as it should be much faster than hand-written loop srcLen = GetLength(src, srcLen); if ( srcLen == wxNO_LEN ) return wxCONV_FAILED; const size_t inLen = srcLen/BYTES_PER_CHAR; if ( dst ) { if ( dstLen < inLen ) return wxCONV_FAILED; memcpy(dst, src, srcLen); } return inLen; } size_t wxMBConvUTF32straight::FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen) const { if ( srcLen == wxNO_LEN ) srcLen = wxWcslen(src) + 1; srcLen *= BYTES_PER_CHAR; if ( dst ) { if ( dstLen < srcLen ) return wxCONV_FAILED; memcpy(dst, src, srcLen); } return srcLen; } // ---------------------------------------------------------------------------- // endian-reversing conversions // ---------------------------------------------------------------------------- size_t wxMBConvUTF32swap::ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen) const { srcLen = GetLength(src, srcLen); if ( srcLen == wxNO_LEN ) return wxCONV_FAILED; srcLen /= BYTES_PER_CHAR; if ( dst ) { if ( dstLen < srcLen ) return wxCONV_FAILED; const wxUint32 *inBuff = wx_reinterpret_cast(const wxUint32 *, src); for ( size_t n = 0; n < srcLen; n++, inBuff++ ) { *dst++ = wxUINT32_SWAP_ALWAYS(*inBuff); } } return srcLen; } size_t wxMBConvUTF32swap::FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen) const { if ( srcLen == wxNO_LEN ) srcLen = wxWcslen(src) + 1; srcLen *= BYTES_PER_CHAR; if ( dst ) { if ( dstLen < srcLen ) return wxCONV_FAILED; wxUint32 *outBuff = wx_reinterpret_cast(wxUint32 *, dst); for ( size_t n = 0; n < srcLen; n += BYTES_PER_CHAR, src++ ) { *outBuff++ = wxUINT32_SWAP_ALWAYS(*src); } } return srcLen; } #endif // WC_UTF16/!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)) #define ICONV_T_INVALID ((iconv_t)-1) #if SIZEOF_WCHAR_T == 4 #define WC_BSWAP wxUINT32_SWAP_ALWAYS #define WC_ENC wxFONTENCODING_UTF32 #elif SIZEOF_WCHAR_T == 2 #define WC_BSWAP wxUINT16_SWAP_ALWAYS #define WC_ENC wxFONTENCODING_UTF16 #else // sizeof(wchar_t) != 2 nor 4 // does this ever happen? #error "Unknown sizeof(wchar_t): please report this to wx-dev@lists.wxwindows.org" #endif // ---------------------------------------------------------------------------- // 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; // classify this encoding as explained in wxMBConv::GetMBNulLen() comment virtual size_t GetMBNulLen() const; virtual wxMBConv *Clone() const { wxMBConv_iconv *p = new wxMBConv_iconv(m_name); p->m_minMBCharWidth = m_minMBCharWidth; return p; } bool IsOk() const { return (m2w != ICONV_T_INVALID) && (w2m != ICONV_T_INVALID); } 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 wxString 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; // name of the encoding handled by this conversion wxString m_name; // cached result of GetMBNulLen(); set to 0 meaning "unknown" // initially size_t m_minMBCharWidth; }; // make the constructor available for unit testing WXDLLIMPEXP_BASE wxMBConv* new_wxMBConv_iconv( const wxChar* name ) { wxMBConv_iconv* result = new wxMBConv_iconv( name ); if ( !result->IsOk() ) { delete result; return 0; } return result; } wxString wxMBConv_iconv::ms_wcCharsetName; bool wxMBConv_iconv::ms_wcNeedsSwap = false; wxMBConv_iconv::wxMBConv_iconv(const wxChar *name) : m_name(name) { m_minMBCharWidth = 0; // iconv operates with chars, not wxChars, but luckily it uses only ASCII // names for the charsets const wxCharBuffer cname(wxString(name).ToAscii()); // check for charset that represents wchar_t: if ( ms_wcCharsetName.empty() ) { wxLogTrace(TRACE_STRCONV, _T("Looking for wide char codeset:")); #if wxUSE_FONTMAP const wxChar **names = wxFontMapperBase::GetAllEncodingNames(WC_ENC); #else // !wxUSE_FONTMAP static const wxChar *names_static[] = { #if SIZEOF_WCHAR_T == 4 _T("UCS-4"), #elif SIZEOF_WCHAR_T == 2 _T("UCS-2"), #endif NULL }; const wxChar **names = names_static; #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP for ( ; *names && ms_wcCharsetName.empty(); ++names ) { const wxString nameCS(*names); // first try charset with explicit bytesex info (e.g. "UCS-4LE"): wxString nameXE(nameCS); #ifdef WORDS_BIGENDIAN nameXE += _T("BE"); #else // little endian nameXE += _T("LE"); #endif wxLogTrace(TRACE_STRCONV, _T(" trying charset \"%s\""), nameXE.c_str()); m2w = iconv_open(nameXE.ToAscii(), cname); if ( m2w == ICONV_T_INVALID ) { // try charset w/o bytesex info (e.g. "UCS4") wxLogTrace(TRACE_STRCONV, _T(" trying charset \"%s\""), nameCS.c_str()); m2w = iconv_open(nameCS.ToAscii(), cname); // and check for bytesex ourselves: if ( m2w != ICONV_T_INVALID ) { char buf[2], *bufPtr; wchar_t wbuf[2], *wbufPtr; size_t insz, outsz; size_t res; buf[0] = 'A'; buf[1] = 0; wbuf[0] = 0; insz = 2; outsz = SIZEOF_WCHAR_T * 2; wbufPtr = wbuf; bufPtr = buf; res = iconv( m2w, ICONV_CHAR_CAST(&bufPtr), &insz, (char**)&wbufPtr, &outsz); if (ICONV_FAILED(res, insz)) { wxLogLastError(wxT("iconv")); wxLogError(_("Conversion to charset '%s' doesn't work."), nameCS.c_str()); } else // ok, can convert to this encoding, remember it { ms_wcCharsetName = nameCS; ms_wcNeedsSwap = wbuf[0] != (wchar_t)buf[0]; } } } else // use charset not requiring byte swapping { ms_wcCharsetName = nameXE; } } wxLogTrace(TRACE_STRCONV, wxT("iconv wchar_t charset is \"%s\"%s"), ms_wcCharsetName.empty() ? _T("") : ms_wcCharsetName.c_str(), ms_wcNeedsSwap ? _T(" (needs swap)") : _T("")); } else // we already have ms_wcCharsetName { m2w = iconv_open(ms_wcCharsetName.ToAscii(), cname); } if ( ms_wcCharsetName.empty() ) { w2m = ICONV_T_INVALID; } else { w2m = iconv_open(cname, ms_wcCharsetName.ToAscii()); if ( w2m == ICONV_T_INVALID ) { wxLogTrace(TRACE_STRCONV, wxT("\"%s\" -> \"%s\" works but not the converse!?"), ms_wcCharsetName.c_str(), cname.data()); } } } wxMBConv_iconv::~wxMBConv_iconv() { if ( m2w != ICONV_T_INVALID ) iconv_close(m2w); if ( w2m != ICONV_T_INVALID ) iconv_close(w2m); } size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const { // find the string length: notice that must be done differently for // NUL-terminated strings and UTF-16/32 which are terminated with 2/4 NULs size_t inbuf; const size_t nulLen = GetMBNulLen(); switch ( nulLen ) { default: return wxCONV_FAILED; case 1: inbuf = strlen(psz); // arguably more optimized than our version break; case 2: case 4: // for UTF-16/32 not only we need to have 2/4 consecutive NULs but // they also have to start at character boundary and not span two // adjacent characters const char *p; for ( p = psz; NotAllNULs(p, nulLen); p += nulLen ) ; inbuf = p - psz; break; } #if wxUSE_THREADS // NB: iconv() is MT-safe, but each thread must use its own iconv_t handle. // Unfortunately there are 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 // wxUSE_THREADS 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 cres = iconv(m2w, ICONV_CHAR_CAST(&pszPtr), &inbuf, (char**)&bufPtr, &outbuf); res = n - (outbuf / SIZEOF_WCHAR_T); if (ms_wcNeedsSwap) { // convert to native endianness for ( unsigned i = 0; i < res; i++ ) buf[n] = WC_BSWAP(buf[i]); } // NUL-terminate the string if there is any space left if (res < n) buf[res] = 0; } 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; cres = iconv(m2w, ICONV_CHAR_CAST(&pszPtr), &inbuf, (char**)&bufPtr, &outbuf ); res += 8 - (outbuf / SIZEOF_WCHAR_T); } while ((cres == (size_t)-1) && (errno == E2BIG)); } if (ICONV_FAILED(cres, inbuf)) { //VS: it is ok if iconv fails, hence trace only wxLogTrace(TRACE_STRCONV, wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode())); return wxCONV_FAILED; } return res; } 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 inlen = wxWcslen(psz); size_t inbuf = inlen * SIZEOF_WCHAR_T; size_t outbuf = n; size_t res, cres; wchar_t *tmpbuf = 0; if (ms_wcNeedsSwap) { // need to copy to temp buffer to switch endianness // (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) tmpbuf = (wchar_t *)malloc(inbuf + SIZEOF_WCHAR_T); for ( size_t i = 0; i < inlen; i++ ) tmpbuf[n] = WC_BSWAP(psz[i]); tmpbuf[inlen] = L'\0'; psz = tmpbuf; } if (buf) { // have destination buffer, convert there cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf ); res = n - outbuf; // NB: iconv was given only wcslen(psz) characters on input, and so // it couldn't convert the trailing zero. Let's do it ourselves // if there's some room left for it in the output buffer. if (res < n) buf[0] = 0; } else { // 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, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf ); res += 16 - outbuf; } while ((cres == (size_t)-1) && (errno == E2BIG)); } if (ms_wcNeedsSwap) { free(tmpbuf); } if (ICONV_FAILED(cres, inbuf)) { wxLogTrace(TRACE_STRCONV, wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode())); return wxCONV_FAILED; } return res; } size_t wxMBConv_iconv::GetMBNulLen() const { if ( m_minMBCharWidth == 0 ) { wxMBConv_iconv * const self = wxConstCast(this, wxMBConv_iconv); #if wxUSE_THREADS // NB: explained in MB2WC wxMutexLocker lock(self->m_iconvMutex); #endif const wchar_t *wnul = L""; char buf[8]; // should be enough for NUL in any encoding size_t inLen = sizeof(wchar_t), outLen = WXSIZEOF(buf); char *inBuff = (char *)wnul; char *outBuff = buf; if ( iconv(w2m, ICONV_CHAR_CAST(&inBuff), &inLen, &outBuff, &outLen) == (size_t)-1 ) { self->m_minMBCharWidth = (size_t)-1; } else // ok { self->m_minMBCharWidth = outBuff - buf; } } return m_minMBCharWidth; } #endif // HAVE_ICONV // ============================================================================ // Win32 conversion classes // ============================================================================ #ifdef wxHAVE_WIN32_MB2WC // from utils.cpp #if wxUSE_FONTMAP extern WXDLLIMPEXP_BASE long wxCharsetToCodepage(const wxChar *charset); extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding); #endif class wxMBConv_win32 : public wxMBConv { public: wxMBConv_win32() { m_CodePage = CP_ACP; m_minMBCharWidth = 0; } wxMBConv_win32(const wxMBConv_win32& conv) : wxMBConv() { m_CodePage = conv.m_CodePage; m_minMBCharWidth = conv.m_minMBCharWidth; } #if wxUSE_FONTMAP wxMBConv_win32(const wxChar* name) { m_CodePage = wxCharsetToCodepage(name); m_minMBCharWidth = 0; } wxMBConv_win32(wxFontEncoding encoding) { m_CodePage = wxEncodingToCodepage(encoding); m_minMBCharWidth = 0; } #endif // wxUSE_FONTMAP virtual 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 // // Moreover, MB_ERR_INVALID_CHARS is only supported on Win 2K SP4 or // Win XP or newer and it is not supported for UTF-[78] so we always // use our own conversions in this case. See // http://blogs.msdn.com/michkap/archive/2005/04/19/409566.aspx // http://msdn.microsoft.com/library/en-us/intl/unicode_17si.asp if ( m_CodePage == CP_UTF8 ) { return wxConvUTF8.MB2WC(buf, psz, n); } if ( m_CodePage == CP_UTF7 ) { return wxConvUTF7.MB2WC(buf, psz, n); } int flags = 0; if ( (m_CodePage < 50000 && m_CodePage != CP_SYMBOL) && IsAtLeastWin2kSP4() ) { flags = MB_ERR_INVALID_CHARS; } const size_t len = ::MultiByteToWideChar ( m_CodePage, // code page flags, // flags: fall on error psz, // input string -1, // its length (NUL-terminated) buf, // output string buf ? n : 0 // size of output buffer ); if ( !len ) { // function totally failed return wxCONV_FAILED; } // if we were really converting and didn't use MB_ERR_INVALID_CHARS, // check if we succeeded, by doing a double trip: if ( !flags && buf ) { const size_t mbLen = strlen(psz); wxCharBuffer mbBuf(mbLen); if ( ::WideCharToMultiByte ( m_CodePage, 0, buf, -1, mbBuf.data(), mbLen + 1, // size in bytes, not length NULL, NULL ) == 0 || strcmp(mbBuf, psz) != 0 ) { // we didn't obtain the same thing we started from, hence // the conversion was lossy and we consider that it failed return wxCONV_FAILED; } } // 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 - 1; } virtual 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 flags, // either none or no best fit pwz, // input string -1, // it is (wide) NUL-terminated buf, // output buffer buf ? n : 0, // and its size NULL, // default "replacement" char pUsedDef // [out] was it used? ); if ( !len ) { // function totally failed return wxCONV_FAILED; } // 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 wxCONV_FAILED; } else // we must resort to double tripping... { wxWCharBuffer wcBuf(n); if ( MB2WC(wcBuf.data(), buf, n) == wxCONV_FAILED || 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 wxCONV_FAILED; } } } // see the comment above for the reason of "len - 1" return len - 1; } virtual size_t GetMBNulLen() const { if ( m_minMBCharWidth == 0 ) { int len = ::WideCharToMultiByte ( m_CodePage, // code page 0, // no flags L"", // input string 1, // translate just the NUL NULL, // output buffer 0, // and its size NULL, // no replacement char NULL // [out] don't care if it was used ); wxMBConv_win32 * const self = wxConstCast(this, wxMBConv_win32); switch ( len ) { default: wxLogDebug(_T("Unexpected NUL length %d"), len); self->m_minMBCharWidth = (size_t)-1; break; case 0: self->m_minMBCharWidth = (size_t)-1; break; case 1: case 2: case 4: self->m_minMBCharWidth = len; break; } } return m_minMBCharWidth; } virtual wxMBConv *Clone() const { return new wxMBConv_win32(*this); } 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 wxOS_WINDOWS_9X: s_isWin98Or2k = verMaj >= 4 && verMin >= 10; break; case wxOS_WINDOWS_NT: s_isWin98Or2k = verMaj >= 5; break; default: // unknown: be conservative by default s_isWin98Or2k = 0; break; } wxASSERT_MSG( s_isWin98Or2k != -1, _T("should be set above") ); } return s_isWin98Or2k == 1; } static bool IsAtLeastWin2kSP4() { #ifdef __WXWINCE__ return false; #else static int s_isAtLeastWin2kSP4 = -1; if ( s_isAtLeastWin2kSP4 == -1 ) { OSVERSIONINFOEX ver; memset(&ver, 0, sizeof(ver)); ver.dwOSVersionInfoSize = sizeof(ver); GetVersionEx((OSVERSIONINFO*)&ver); s_isAtLeastWin2kSP4 = ((ver.dwMajorVersion > 5) || // Vista+ (ver.dwMajorVersion == 5 && ver.dwMinorVersion > 0) || // XP/2003 (ver.dwMajorVersion == 5 && ver.dwMinorVersion == 0 && ver.wServicePackMajor >= 4)) // 2000 SP4+ ? 1 : 0; } return s_isAtLeastWin2kSP4 == 1; #endif } // the code page we're working with long m_CodePage; // cached result of GetMBNulLen(), set to 0 initially meaning // "unknown" size_t m_minMBCharWidth; }; #endif // wxHAVE_WIN32_MB2WC // ============================================================================ // Cocoa conversion classes // ============================================================================ #if defined(__WXCOCOA__) // 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 #include CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding) { CFStringEncoding enc = kCFStringEncodingInvalidId ; switch (encoding) { case wxFONTENCODING_DEFAULT : enc = CFStringGetSystemEncoding(); break ; 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: wxMBConv_cocoa() { Init(CFStringGetSystemEncoding()) ; } wxMBConv_cocoa(const wxMBConv_cocoa& conv) { m_encoding = conv.m_encoding; } #if wxUSE_FONTMAP wxMBConv_cocoa(const wxChar* name) { Init( wxCFStringEncFromFontEnc(wxFontMapperBase::Get()->CharsetToEncoding(name, false) ) ) ; } #endif wxMBConv_cocoa(wxFontEncoding encoding) { Init( wxCFStringEncFromFontEnc(encoding) ); } virtual ~wxMBConv_cocoa() { } void Init( CFStringEncoding encoding) { m_encoding = encoding ; } size_t MB2WC(wchar_t * szOut, const char * szUnConv, size_t nOutSize) const { wxASSERT(szUnConv); CFStringRef theString = CFStringCreateWithBytes ( NULL, //the allocator (const UInt8*)szUnConv, strlen(szUnConv), m_encoding, false //no BOM/external representation ); 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 wxMBConvUTF16 converter ; nBufSize = converter.WC2MB( NULL, szUnConv, 0 ); szUniBuffer = new UniChar[ (nBufSize / sizeof(UniChar)) + 1]; converter.WC2MB( (char*) szUniBuffer, szUnConv, nBufSize + sizeof(UniChar)); nBufSize /= sizeof(UniChar); #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; } virtual wxMBConv *Clone() const { return new wxMBConv_cocoa(*this); } bool IsOk() const { return m_encoding != kCFStringEncodingInvalidId && CFStringIsEncodingAvailable(m_encoding); } private: CFStringEncoding m_encoding ; }; #endif // defined(__WXCOCOA__) // ============================================================================ // Mac conversion classes // ============================================================================ #if defined(__WXMAC__) && defined(TARGET_CARBON) class wxMBConv_mac : public wxMBConv { public: wxMBConv_mac() { Init(CFStringGetSystemEncoding()) ; } wxMBConv_mac(const wxMBConv_mac& conv) { Init(conv.m_char_encoding); } #if wxUSE_FONTMAP wxMBConv_mac(const wxChar* name) { wxFontEncoding enc = wxFontMapperBase::Get()->CharsetToEncoding(name, false); Init( (enc != wxFONTENCODING_SYSTEM) ? wxMacGetSystemEncFromFontEnc( enc ) : kTextEncodingUnknown); } #endif wxMBConv_mac(wxFontEncoding encoding) { Init( wxMacGetSystemEncFromFontEnc(encoding) ); } virtual ~wxMBConv_mac() { OSStatus status = noErr ; if (m_MB2WC_converter) status = TECDisposeConverter(m_MB2WC_converter); if (m_WC2MB_converter) status = TECDisposeConverter(m_WC2MB_converter); } void Init( TextEncodingBase encoding,TextEncodingVariant encodingVariant = kTextEncodingDefaultVariant , TextEncodingFormat encodingFormat = kTextEncodingDefaultFormat) { m_MB2WC_converter = NULL ; m_WC2MB_converter = NULL ; if ( encoding != kTextEncodingUnknown ) { m_char_encoding = CreateTextEncoding(encoding, encodingVariant, encodingFormat) ; m_unicode_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault, 0, kUnicode16BitFormat) ; } else { m_char_encoding = kTextEncodingUnknown; m_unicode_encoding = kTextEncodingUnknown; } } virtual void CreateIfNeeded() const { if ( m_MB2WC_converter == NULL && m_WC2MB_converter == NULL && m_char_encoding != kTextEncodingUnknown && m_unicode_encoding != kTextEncodingUnknown ) { OSStatus status = noErr ; status = TECCreateConverter(&m_MB2WC_converter, m_char_encoding, m_unicode_encoding); wxASSERT_MSG( status == noErr , _("Unable to create TextEncodingConverter")) ; status = TECCreateConverter(&m_WC2MB_converter, m_unicode_encoding, m_char_encoding); wxASSERT_MSG( status == noErr , _("Unable to create TextEncodingConverter")) ; } } size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const { CreateIfNeeded() ; OSStatus status = noErr ; ByteCount byteOutLen ; ByteCount byteInLen = strlen(psz) + 1; 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 { #if wxUSE_THREADS wxMutexLocker lock( m_MB2WC_guard ); #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 ; wxMBConvUTF16 converter ; res = converter.MB2WC( (buf ? buf : tbuf), (const char*)ubuf, n ) ; free( ubuf ) ; #else res = byteOutLen / sizeof( UniChar ) ; #endif if ( buf == NULL ) free(tbuf) ; if ( buf && res < n) buf[res] = 0; return res ; } size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const { CreateIfNeeded() ; OSStatus status = noErr ; ByteCount byteOutLen ; ByteCount byteInLen = wxWcslen(psz) * SIZEOF_WCHAR_T ; char *tbuf = 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 wxMBConvUTF16 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 { #if wxUSE_THREADS wxMutexLocker lock( m_WC2MB_guard ); #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) == wxCONV_FAILED || 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 wxCONV_FAILED; } } return res ; } virtual wxMBConv *Clone() const { return new wxMBConv_mac(*this); } bool IsOk() const { CreateIfNeeded() ; return m_MB2WC_converter != NULL && m_WC2MB_converter != NULL; } protected : mutable TECObjectRef m_MB2WC_converter; mutable TECObjectRef m_WC2MB_converter; #if wxUSE_THREADS mutable wxMutex m_MB2WC_guard; mutable wxMutex m_WC2MB_guard; #endif TextEncodingBase m_char_encoding; TextEncodingBase m_unicode_encoding; }; // MB is decomposed (D) normalized UTF8 class wxMBConv_macUTF8D : public wxMBConv_mac { public : wxMBConv_macUTF8D() { Init( kTextEncodingUnicodeDefault , kUnicodeNoSubset , kUnicodeUTF8Format ) ; m_uni = NULL; m_uniBack = NULL ; } virtual ~wxMBConv_macUTF8D() { if (m_uni!=NULL) DisposeUnicodeToTextInfo(&m_uni); if (m_uniBack!=NULL) DisposeUnicodeToTextInfo(&m_uniBack); } size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const { CreateIfNeeded() ; OSStatus status = noErr ; ByteCount byteOutLen ; ByteCount byteInLen = wxWcslen(psz) * SIZEOF_WCHAR_T ; char *tbuf = 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 wxMBConvUTF16 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 // ubuf is a non-decomposed UniChar buffer ByteCount dcubuflen = byteInLen * 2 + 2 ; ByteCount dcubufread , dcubufwritten ; UniChar *dcubuf = (UniChar*) malloc( dcubuflen ) ; { #if wxUSE_THREADS wxMutexLocker lock( m_WC2MB_guard ); #endif ConvertFromUnicodeToText( m_uni , byteInLen , ubuf , kUnicodeDefaultDirectionMask, 0, NULL, NULL, NULL, dcubuflen , &dcubufread , &dcubufwritten , dcubuf ) ; // we now convert that decomposed buffer into UTF8 status = TECConvertText( m_WC2MB_converter, (ConstTextPtr) dcubuf, dcubufwritten, &dcubufread, (TextPtr) (buf ? buf : tbuf), byteBufferLen, &byteOutLen); } free( dcubuf ); #if SIZEOF_WCHAR_T == 4 free( ubuf ) ; #endif if ( buf == NULL ) free(tbuf) ; size_t res = byteOutLen ; if ( buf && res < n) { buf[res] = 0; // don't test for round-trip fidelity yet, we cannot guarantee it yet } return res ; } size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const { CreateIfNeeded() ; OSStatus status = noErr ; ByteCount byteOutLen ; ByteCount byteInLen = strlen(psz) + 1; 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 ByteCount dcubuflen = byteBufferLen * 2 + 2 ; ByteCount dcubufread , dcubufwritten ; UniChar *dcubuf = (UniChar*) malloc( dcubuflen ) ; { #if wxUSE_THREADS wxMutexLocker lock( m_MB2WC_guard ); #endif status = TECConvertText( m_MB2WC_converter, (ConstTextPtr) psz, byteInLen, &byteInLen, (TextPtr) dcubuf, dcubuflen, &byteOutLen); // 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 dcubuf[byteOutLen / sizeof( UniChar ) ] = 0 ; // now from the decomposed UniChar to properly composed uniChar ConvertFromUnicodeToText( m_uniBack , byteOutLen , dcubuf , kUnicodeDefaultDirectionMask, 0, NULL, NULL, NULL, dcubuflen , &dcubufread , &dcubufwritten , ubuf ) ; } free( dcubuf ); byteOutLen = dcubufwritten ; ubuf[byteOutLen / sizeof( UniChar ) ] = 0 ; #if SIZEOF_WCHAR_T == 4 wxMBConvUTF16 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 ; } virtual void CreateIfNeeded() const { wxMBConv_mac::CreateIfNeeded() ; if ( m_uni == NULL ) { m_map.unicodeEncoding = CreateTextEncoding(kTextEncodingUnicodeDefault, kUnicodeNoSubset, kTextEncodingDefaultFormat); m_map.otherEncoding = CreateTextEncoding(kTextEncodingUnicodeDefault, kUnicodeCanonicalDecompVariant, kTextEncodingDefaultFormat); m_map.mappingVersion = kUnicodeUseLatestMapping; OSStatus err = CreateUnicodeToTextInfo(&m_map, &m_uni); wxASSERT_MSG( err == noErr , _(" Couldn't create the UnicodeConverter")) ; m_map.unicodeEncoding = CreateTextEncoding(kTextEncodingUnicodeDefault, kUnicodeNoSubset, kTextEncodingDefaultFormat); m_map.otherEncoding = CreateTextEncoding(kTextEncodingUnicodeDefault, kUnicodeCanonicalCompVariant, kTextEncodingDefaultFormat); m_map.mappingVersion = kUnicodeUseLatestMapping; err = CreateUnicodeToTextInfo(&m_map, &m_uniBack); wxASSERT_MSG( err == noErr , _(" Couldn't create the UnicodeConverter")) ; } } protected : mutable UnicodeToTextInfo m_uni; mutable UnicodeToTextInfo m_uniBack; mutable UnicodeMapping m_map; }; #endif // defined(__WXMAC__) && defined(TARGET_CARBON) // ============================================================================ // wxEncodingConverter based conversion classes // ============================================================================ #if wxUSE_FONTMAP class wxMBConv_wxwin : public wxMBConv { private: void Init() { m_ok = m2w.Init(m_enc, wxFONTENCODING_UNICODE) && w2m.Init(wxFONTENCODING_UNICODE, m_enc); } public: // temporarily just use wxEncodingConverter stuff, // so that it works while a better implementation is built wxMBConv_wxwin(const wxChar* name) { if (name) m_enc = wxFontMapperBase::Get()->CharsetToEncoding(name, false); else m_enc = wxFONTENCODING_SYSTEM; 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 wxCONV_FAILED; } 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 wxCONV_FAILED; } return inbuf; } virtual size_t GetMBNulLen() const { switch ( m_enc ) { case wxFONTENCODING_UTF16BE: case wxFONTENCODING_UTF16LE: return 2; case wxFONTENCODING_UTF32BE: case wxFONTENCODING_UTF32LE: return 4; default: return 1; } } virtual wxMBConv *Clone() const { return new wxMBConv_wxwin(m_enc); } bool IsOk() const { return m_ok; } public: wxFontEncoding m_enc; wxEncodingConverter m2w, w2m; private: // were we initialized successfully? bool m_ok; DECLARE_NO_COPY_CLASS(wxMBConv_wxwin) }; // make the constructors available for unit testing WXDLLIMPEXP_BASE wxMBConv* new_wxMBConv_wxwin( const wxChar* name ) { wxMBConv_wxwin* result = new wxMBConv_wxwin( name ); if ( !result->IsOk() ) { delete result; return 0; } return result; } #endif // wxUSE_FONTMAP // ============================================================================ // wxCSConv implementation // ============================================================================ void wxCSConv::Init() { m_name = NULL; m_convReal = NULL; m_deferred = true; } wxCSConv::wxCSConv(const wxChar *charset) { Init(); if ( charset ) { SetName(charset); } #if wxUSE_FONTMAP m_encoding = wxFontMapperBase::GetEncodingFromName(charset); if ( m_encoding == wxFONTENCODING_MAX ) { // set to unknown/invalid value m_encoding = wxFONTENCODING_SYSTEM; } else if ( m_encoding == wxFONTENCODING_DEFAULT ) { // wxFONTENCODING_DEFAULT is same as US-ASCII in this context m_encoding = wxFONTENCODING_ISO8859_1; } #else m_encoding = wxFONTENCODING_SYSTEM; #endif } wxCSConv::wxCSConv(wxFontEncoding encoding) { if ( encoding == wxFONTENCODING_MAX || encoding == wxFONTENCODING_DEFAULT ) { wxFAIL_MSG( _T("invalid encoding value in wxCSConv ctor") ); encoding = wxFONTENCODING_SYSTEM; } Init(); m_encoding = encoding; } wxCSConv::~wxCSConv() { Clear(); } wxCSConv::wxCSConv(const wxCSConv& conv) : wxMBConv() { 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() { free(m_name); delete m_convReal; m_name = NULL; m_convReal = NULL; } void wxCSConv::SetName(const wxChar *charset) { if (charset) { m_name = wxStrdup(charset); m_deferred = true; } } #if wxUSE_FONTMAP WX_DECLARE_HASH_MAP( wxFontEncoding, wxString, wxIntegerHash, wxIntegerEqual, wxEncodingNameCache ); static wxEncodingNameCache gs_nameCache; #endif wxMBConv *wxCSConv::DoCreate() const { #if wxUSE_FONTMAP wxLogTrace(TRACE_STRCONV, wxT("creating conversion for %s"), (m_name ? m_name : wxFontMapperBase::GetEncodingName(m_encoding).c_str())); #endif // wxUSE_FONTMAP // 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 || m_encoding == wxFONTENCODING_DEFAULT ) { // 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 wxFontEncoding encoding(m_encoding); #endif if ( !name.empty() ) { wxMBConv_iconv *conv = new wxMBConv_iconv(name); if ( conv->IsOk() ) return conv; delete conv; #if wxUSE_FONTMAP encoding = wxFontMapperBase::Get()->CharsetToEncoding(name, false); #endif // wxUSE_FONTMAP } #if wxUSE_FONTMAP { const wxEncodingNameCache::iterator it = gs_nameCache.find(encoding); if ( it != gs_nameCache.end() ) { if ( it->second.empty() ) return NULL; wxMBConv_iconv *conv = new wxMBConv_iconv(it->second); if ( conv->IsOk() ) return conv; delete conv; } const wxChar** names = wxFontMapperBase::GetAllEncodingNames(encoding); // CS : in case this does not return valid names (eg for MacRoman) encoding // got a 'failure' entry in the cache all the same, although it just has to // be created using a different method, so only store failed iconv creation // attempts (or perhaps we shoulnd't do this at all ?) if ( names[0] != NULL ) { for ( ; *names; ++names ) { wxMBConv_iconv *conv = new wxMBConv_iconv(*names); if ( conv->IsOk() ) { gs_nameCache[encoding] = *names; return conv; } delete conv; } gs_nameCache[encoding] = _T(""); // cache the failure } } #endif // wxUSE_FONTMAP } #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__) { // leave UTF16 and UTF32 to the built-ins of wx if ( m_name || ( m_encoding < wxFONTENCODING_UTF16BE || ( m_encoding >= wxFONTENCODING_MACMIN && m_encoding <= wxFONTENCODING_MACMAX ) ) ) { #if wxUSE_FONTMAP wxMBConv_mac *conv = m_name ? new wxMBConv_mac(m_name) : new wxMBConv_mac(m_encoding); #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 = wxFontMapperBase::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 break; } // 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 a timestamp, for which it will need wxConvLocal (to convert // time to char* and then wchar_t*), but that fails, tries to log the // error, but wxLog has an (already locked) critical section that // guards the static buffer. static bool alreadyLoggingError = false; if (!alreadyLoggingError) { alreadyLoggingError = true; wxLogError(_("Cannot convert from the charset '%s'!"), m_name ? m_name : #if wxUSE_FONTMAP wxFontMapperBase::GetEncodingDescription(m_encoding).c_str() #else // !wxUSE_FONTMAP wxString::Format(_("encoding %i"), m_encoding).c_str() #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP ); alreadyLoggingError = false; } return NULL; } void wxCSConv::CreateConvIfNeeded() const { if ( m_deferred ) { wxCSConv *self = (wxCSConv *)this; // const_cast // 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 ) { #if wxUSE_INTL self->m_encoding = wxLocale::GetSystemEncoding(); #else // fallback to some reasonable default: self->m_encoding = wxFONTENCODING_ISO8859_1; #endif // wxUSE_INTL } self->m_convReal = DoCreate(); self->m_deferred = false; } } bool wxCSConv::IsOk() const { CreateConvIfNeeded(); // special case: no convReal created for wxFONTENCODING_ISO8859_1 if ( m_encoding == wxFONTENCODING_ISO8859_1 ) return true; // always ok as we do it ourselves // m_convReal->IsOk() is called at its own creation, so we know it must // be ok if m_convReal is non-NULL return m_convReal != NULL; } size_t wxCSConv::ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen) const { CreateConvIfNeeded(); if (m_convReal) return m_convReal->ToWChar(dst, dstLen, src, srcLen); // latin-1 (direct) if ( srcLen == wxNO_LEN ) srcLen = strlen(src) + 1; // take trailing NUL too if ( dst ) { if ( dstLen < srcLen ) return wxCONV_FAILED; for ( size_t n = 0; n < srcLen; n++ ) dst[n] = (unsigned char)(src[n]); } return srcLen; } size_t wxCSConv::FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen) const { CreateConvIfNeeded(); if (m_convReal) return m_convReal->FromWChar(dst, dstLen, src, srcLen); // latin-1 (direct) if ( srcLen == wxNO_LEN ) srcLen = wxWcslen(src) + 1; if ( dst ) { if ( dstLen < srcLen ) return wxCONV_FAILED; for ( size_t n = 0; n < srcLen; n++ ) { if ( src[n] > 0xFF ) return wxCONV_FAILED; dst[n] = (char)src[n]; } } else // still need to check the input validity { for ( size_t n = 0; n < srcLen; n++ ) { if ( src[n] > 0xFF ) return wxCONV_FAILED; } } return srcLen; } size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const { // this function exists only for ABI-compatibility in 2.8 branch return wxMBConv::MB2WC(buf, psz, n); } size_t wxCSConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const { // this function exists only for ABI-compatibility in 2.8 branch return wxMBConv::WC2MB(buf, psz, n); } size_t wxCSConv::GetMBNulLen() const { CreateConvIfNeeded(); if ( m_convReal ) { return m_convReal->GetMBNulLen(); } return 1; } // ---------------------------------------------------------------------------- // 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; #if defined(__WXMAC__) && defined(TARGET_CARBON) static wxMBConv_macUTF8D wxConvMacUTF8DObj; #endif WXDLLIMPEXP_DATA_BASE(wxMBConv&) wxConvLibc = wxConvLibcObj; WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvLocal = wxConvLocalObj; WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvISO8859_1 = wxConvISO8859_1Obj; WXDLLIMPEXP_DATA_BASE(wxMBConvUTF7&) wxConvUTF7 = wxConvUTF7Obj; WXDLLIMPEXP_DATA_BASE(wxMBConvUTF8&) wxConvUTF8 = wxConvUTF8Obj; WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent = &wxConvLibcObj; WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvUI = &wxConvLocal; WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvFileName = & #ifdef __WXOSX__ #if defined(__WXMAC__) && defined(TARGET_CARBON) wxConvMacUTF8DObj; #else wxConvUTF8Obj; #endif #else // !__WXOSX__ wxConvLibcObj; #endif // __WXOSX__/!__WXOSX__ #if wxUSE_UNICODE wxWCharBuffer wxSafeConvertMB2WX(const char *s) { if ( !s ) return wxWCharBuffer(); wxWCharBuffer wbuf(wxConvLibc.cMB2WX(s)); if ( !wbuf ) wbuf = wxConvUTF8.cMB2WX(s); if ( !wbuf ) wbuf = wxConvISO8859_1.cMB2WX(s); return wbuf; } wxCharBuffer wxSafeConvertWX2MB(const wchar_t *ws) { if ( !ws ) return wxCharBuffer(); wxCharBuffer buf(wxConvLibc.cWX2MB(ws)); if ( !buf ) buf = wxMBConvUTF8(wxMBConvUTF8::MAP_INVALID_UTF8_TO_OCTAL).cWX2MB(ws); return buf; } #endif // wxUSE_UNICODE #else // !wxUSE_WCHAR_T // stand-ins in absence of wchar_t WXDLLIMPEXP_DATA_BASE(wxMBConv) wxConvLibc, wxConvISO8859_1, wxConvLocal, wxConvUTF8; WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent = NULL; #endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T