X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7f1698c34c3d4241bb96a6a40d02bd25df6db594..be4da8f0315e36de2322cd312c7184f55c0333f5:/src/common/strconv.cpp diff --git a/src/common/strconv.cpp b/src/common/strconv.cpp index 1a5dbe119a..95ef424042 100644 --- a/src/common/strconv.cpp +++ b/src/common/strconv.cpp @@ -1,87 +1,49 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: strconv.cpp +// Name: src/common/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 ///////////////////////////////////////////////////////////////////////////// -// ============================================================================ -// declarations -// ============================================================================ - -// ---------------------------------------------------------------------------- -// headers -// ---------------------------------------------------------------------------- - -#ifdef __GNUG__ - #pragma implementation "strconv.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" -#ifdef __BORLANDC__ - #pragma hdrstop -#endif - #ifndef WX_PRECOMP + #ifdef __WXMSW__ + #include "wx/msw/missing.h" + #endif #include "wx/intl.h" #include "wx/log.h" -#endif // WX_PRECOMP - -#ifdef __WXMSW__ - #include "wx/msw/private.h" + #include "wx/utils.h" + #include "wx/hashmap.h" #endif -#include -#include -#include -#include - -#include "wx/module.h" #include "wx/strconv.h" -// ---------------------------------------------------------------------------- -// globals -// ---------------------------------------------------------------------------- - #if wxUSE_WCHAR_T - WXDLLEXPORT_DATA(wxMBConv) wxConvLibc; - WXDLLEXPORT_DATA(wxCSConv) wxConvLocal((const wxChar *)NULL); -#else - // stand-ins in absence of wchar_t - WXDLLEXPORT_DATA(wxMBConv) wxConvLibc, wxConvFile; -#endif // wxUSE_WCHAR_T - -WXDLLEXPORT_DATA(wxMBConv *) wxConvCurrent = &wxConvLibc; -class wxStrConvModule: public wxModule -{ -public: - wxStrConvModule() : wxModule() { } - virtual bool OnInit() { return TRUE; } - virtual void OnExit() - { -#if wxUSE_WCHAR_T - wxConvLocal.Clear(); +#ifdef __WINDOWS__ + #include "wx/msw/private.h" #endif - } - - DECLARE_DYNAMIC_CLASS(wxStrConvModule) -}; - -IMPLEMENT_DYNAMIC_CLASS(wxStrConvModule, wxModule) +#ifndef __WXWINCE__ +#include +#endif -// ---------------------------------------------------------------------------- -// headers -// ---------------------------------------------------------------------------- +#include +#include +#include -#if wxUSE_WCHAR_T +#if defined(__WIN32__) && !defined(__WXMICROWIN__) + #define wxHAVE_WIN32_MB2WC +#endif #ifdef __SALFORDC__ #include @@ -89,89 +51,86 @@ IMPLEMENT_DYNAMIC_CLASS(wxStrConvModule, wxModule) #ifdef HAVE_ICONV #include + #include "wx/thread.h" #endif #include "wx/encconv.h" #include "wx/fontmap.h" -// ---------------------------------------------------------------------------- -// macros -// ---------------------------------------------------------------------------- +#ifdef __WXMAC__ +#ifndef __DARWIN__ +#include +#include +#include +#endif -#define BSWAP_UCS4(str, len) { unsigned _c; for (_c=0; _c=0x110000) + else if (input >= 0x110000) { - return (size_t)-1; + return wxCONV_FAILED; } else { 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)) + if ((*input < 0xd800) || (*input > 0xdfff)) { output = *input; return 1; } - else if ((input[1]<0xdc00) || (input[1]>=0xdfff)) + else if ((input[1] < 0xdc00) || (input[1] > 0xdfff)) { output = *input; - return (size_t)-1; + return wxCONV_FAILED; } else { @@ -180,601 +139,2944 @@ static size_t decode_utf16(const wchar_t* input, wxUint32& output) } } -#endif // WC_UTF16 +#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::MB2WC(wchar_t *buf, const char *psz, size_t n) const +size_t +wxMBConv::ToWChar(wchar_t *dst, size_t dstLen, + const char *src, size_t srcLen) const { - return wxMB2WC(buf, psz, n); -} + // 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; -size_t wxMBConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const -{ - return wxWC2MB(buf, psz, n); -} + // 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; + } -const wxWCharBuffer wxMBConv::cMB2WC(const char *psz) const -{ - if (psz) + srcEnd = src + srcLen; + } + else // quit after the first loop iteration { - size_t nLen = MB2WC((wchar_t *) NULL, psz, 0); - if (nLen == (size_t)-1) - return wxWCharBuffer((wchar_t *) NULL); - wxWCharBuffer buf(nLen); - MB2WC((wchar_t *)(const wchar_t *) buf, psz, nLen); - return buf; + srcEnd = NULL; } - else - return wxWCharBuffer((wchar_t *) 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; } -const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *psz) const +size_t +wxMBConv::FromWChar(char *dst, size_t dstLen, + const wchar_t *src, size_t srcLen) const { - if (psz) + // 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 ) { - size_t nLen = WC2MB((char *) NULL, psz, 0); - if (nLen == (size_t)-1) - return wxCharBuffer((char *) NULL); - wxCharBuffer buf(nLen); - WC2MB((char *)(const char *) buf, psz, nLen); - return buf; + 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; } - else - return wxCharBuffer((char *) NULL); -} -// ---------------------------------------------------------------------------- -// standard file conversion -// ---------------------------------------------------------------------------- + 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); -WXDLLEXPORT_DATA(wxMBConvFile) wxConvFile; + if ( lenChunk == wxCONV_FAILED ) + return wxCONV_FAILED; -// just use the libc conversion for now -size_t wxMBConvFile::MB2WC(wchar_t *buf, const char *psz, size_t n) const + 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 { - return wxMB2WC(buf, psz, n); + 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 wxMBConvFile::WC2MB(char *buf, const wchar_t *psz, size_t n) const +size_t wxMBConv::WC2MB(char *outBuff, const wchar_t *inBuff, size_t outLen) const { - return wxWC2MB(buf, psz, n); + size_t rc = FromWChar(outBuff, outLen, inBuff); + if ( rc != wxCONV_FAILED ) + { + rc -= GetMBNulLen(); + } + + return rc; } -// ---------------------------------------------------------------------------- -// standard gdk conversion -// ---------------------------------------------------------------------------- +wxMBConv::~wxMBConv() +{ + // nothing to do here (necessary for Darwin linking probably) +} -#ifdef __WXGTK12__ +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 */); -WXDLLEXPORT_DATA(wxMBConvGdk) wxConvGdk; + // +1 for the trailing NULL + if ( MB2WC(buf.data(), psz, nLen + 1) != wxCONV_FAILED ) + return buf; + } + } -#include + return wxWCharBuffer(); +} -size_t wxMBConvGdk::MB2WC(wchar_t *buf, const char *psz, size_t n) const +const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *pwz) const { - if (buf) + if ( pwz ) { - return gdk_mbstowcs((GdkWChar *)buf, psz, n); + 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; + } } - else + + 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 ) { - GdkWChar *nbuf = new GdkWChar[n=strlen(psz)]; - size_t len = gdk_mbstowcs(nbuf, psz, n); - delete[] nbuf; - return len; + 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(); } -size_t wxMBConvGdk::WC2MB(char *buf, const wchar_t *psz, size_t n) const +const wxCharBuffer +wxMBConv::cWC2MB(const wchar_t *inBuff, size_t inLen, size_t *outLen) const { - char *mbstr = gdk_wcstombs((GdkWChar *)psz); - size_t len = mbstr ? strlen(mbstr) : 0; - if (buf) + size_t dstLen = FromWChar(NULL, 0, inBuff, inLen); + if ( dstLen != wxCONV_FAILED ) { - if (len > n) - len = n; - memcpy(buf, psz, len); - if (len < n) - buf[len] = 0; + // 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; + } } - return len; -} -#endif // GTK > 1.0 + if ( outLen ) + *outLen = 0; + + return wxCharBuffer(); +} // ---------------------------------------------------------------------------- -// UTF-7 +// wxMBConvLibc // ---------------------------------------------------------------------------- -WXDLLEXPORT_DATA(wxMBConvUTF7) wxConvUTF7; - -#if 0 -static char utf7_setD[]="ABCDEFGHIJKLMNOPQRSTUVWXYZ" - "abcdefghijklmnopqrstuvwxyz" - "0123456789'(),-./:?"; -static char utf7_setO[]="!\"#$%&*;<=>@[]^_`{|}"; -static char utf7_setB[]="ABCDEFGHIJKLMNOPQRSTUVWXYZ" - "abcdefghijklmnopqrstuvwxyz" - "0123456789+/"; -#endif +size_t wxMBConvLibc::MB2WC(wchar_t *buf, const char *psz, size_t n) const +{ + return wxMB2WC(buf, psz, n); +} -// 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 wxMBConvLibc::WC2MB(char *buf, const wchar_t *psz, size_t n) const { - return 0; + return wxWC2MB(buf, psz, n); } -size_t wxMBConvUTF7::WC2MB(char * WXUNUSED(buf), - const wchar_t * WXUNUSED(psz), - size_t WXUNUSED(n)) const +// ---------------------------------------------------------------------------- +// wxConvBrokenFileNames +// ---------------------------------------------------------------------------- + +#ifdef __UNIX__ + +wxConvBrokenFileNames::wxConvBrokenFileNames(const wxChar *charset) { - return 0; + if ( !charset || wxStricmp(charset, _T("UTF-8")) == 0 + || wxStricmp(charset, _T("UTF8")) == 0 ) + m_conv = new wxMBConvUTF8(wxMBConvUTF8::MAP_INVALID_UTF8_TO_OCTAL); + else + m_conv = new wxCSConv(charset); } +#endif // __UNIX__ + // ---------------------------------------------------------------------------- -// UTF-8 +// UTF-7 // ---------------------------------------------------------------------------- -WXDLLEXPORT_DATA(wxMBConvUTF8) wxConvUTF8; +// Implementation (C) 2004 Fredrik Roubert -static wxUint32 utf8_max[]= - { 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff, 0xffffffff }; +// +// 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 wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const +size_t wxMBConvUTF7::MB2WC(wchar_t *buf, const char *psz, size_t n) const { size_t len = 0; - while (*psz && ((!buf) || (len < n))) + while ( *psz && (!buf || (len < n)) ) { - unsigned char cc = *psz++, fc = cc; - unsigned cnt; - for (cnt = 0; fc & 0x80; cnt++) - fc <<= 1; - if (!cnt) + unsigned char cc = *psz++; + if (cc != '+') { // plain ASCII char if (buf) *buf++ = cc; len++; } - else + else if (*psz == '-') { - cnt--; - if (!cnt) - { - // invalid UTF-8 sequence - return (size_t)-1; - } - else + // 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++ ) { - unsigned ocnt = cnt - 1; - wxUint32 res = cc & (0x3f >> cnt); - while (cnt--) + d <<= 6; + d += cc; + for (l += 6; l >= 8; lsb = !lsb) { - cc = *psz++; - if ((cc & 0xC0) != 0x80) + unsigned char c = (unsigned char)((d >> (l -= 8)) % 256); + if (lsb) { - // invalid UTF-8 sequence - return (size_t)-1; + if (buf) + *buf++ |= c; + len ++; } - res = (res << 6) | (cc & 0x3f); - } - if (res <= utf8_max[ocnt]) - { - // illegal UTF-8 encoding - return (size_t)-1; + else + { + if (buf) + *buf = (wchar_t)(c << 8); + } + + ok = true; } -#ifdef WC_UTF16 - size_t pa = encode_utf16(res, buf); - if (pa == (size_t)-1) - return (size_t)-1; - if (buf) - buf += pa; - len += pa; -#else // !WC_UTF16 - if (buf) - *buf++ = res; - len++; -#endif // WC_UTF16/!WC_UTF16 } + + if ( !ok ) + { + // in valid UTF7 we should have valid characters after '+' + return wxCONV_FAILED; + } + + if (*psz == '-') + psz++; } } - if (buf && (len < n)) - *buf = 0; + + if ( buf && (len < n) ) + *buf = '\0'; + return len; } -size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t 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 { size_t len = 0; while (*psz && ((!buf) || (len < n))) { - wxUint32 cc; -#ifdef WC_UTF16 - size_t pa = decode_utf16(psz, cc); - psz += (pa == (size_t)-1) ? 1 : pa; -#else - cc=(*psz++) & 0x7fffffff; -#endif - unsigned cnt; - for (cnt = 0; cc > utf8_max[cnt]; cnt++) {} - if (!cnt) + wchar_t cc = *psz++; + if (cc < 0x80 && utf7encode[cc] < 1) { // plain ASCII char if (buf) - *buf++ = (char) cc; + *buf++ = (char)cc; + len++; } - +#ifndef WC_UTF16 + else if (((wxUint32)cc) > 0xffff) + { + // no surrogate pair generation (yet?) + return wxCONV_FAILED; + } +#endif else { - len += cnt + 1; if (buf) - { - *buf++ = (char) ((-128 >> cnt) | ((cc >> (cnt * 6)) & (0x3f >> cnt))); - while (cnt--) - *buf++ = (char) (0x80 | ((cc >> (cnt * 6)) & 0x3f)); - } - } - } + *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; - if (buf && (lenMB2WC(buf,psz,n) : (size_t)-1; } + size_t len = 0; - size_t WC2MB(char *buf, const wchar_t *psz, size_t n) - { return work ? work->WC2MB(buf,psz,n) : (size_t)-1; } + 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; - bool usable() const - { return work!=NULL; } -public: - wxMBConv*work; -}; + 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; + } -// ============================================================================ -// The classes doing conversion using the iconv_xxx() functions -// ============================================================================ + psz++; + res = (res << 6) | (cc & 0x3f); + } -#ifdef HAVE_ICONV + 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 + } + } -// 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)) + 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 -#define ICONV_FAILED(cres, bufLeft) (cres == (size_t)-1) + 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; + } + } + } + } -#define ICONV_CHAR_CAST(x) ((ICONV_CONST char **)(x)) + if (buf && (len < n)) + *buf = 0; -// ---------------------------------------------------------------------------- -// IC_CharSet: encapsulates an iconv character set -// ---------------------------------------------------------------------------- + return len; +} -class IC_CharSet : public wxCharacterSet +static inline bool isoctal(wchar_t wch) { -public: - IC_CharSet(const wxChar *name); - virtual ~IC_CharSet(); - - 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); - - bool usable() 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; - -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 *IC_CharSet::ms_wcCharsetName = NULL; -bool IC_CharSet::ms_wcNeedsSwap = FALSE; + return L'0' <= wch && wch <= L'7'; +} -IC_CharSet::IC_CharSet(const wxChar *name) - : wxCharacterSet(name) +size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const { - // check for charset that represents wchar_t: - if (ms_wcCharsetName == NULL) + size_t len = 0; + + while (*psz && ((!buf) || (len < n))) { - ms_wcNeedsSwap = FALSE; + wxUint32 cc; - // try charset with explicit bytesex info (e.g. "UCS-4LE"): - ms_wcCharsetName = WC_NAME_BEST; - m2w = iconv_open(ms_wcCharsetName, wxConvLibc.cWX2MB(name)); +#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 (m2w == (iconv_t)-1) + 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'\\' ) { - // try charset w/o bytesex info (e.g. "UCS4") - // and check for bytesex ourselves: - ms_wcCharsetName = WC_NAME; - m2w = iconv_open(ms_wcCharsetName, wxConvLibc.cWX2MB(name)); + 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')); + } - // last bet, try if it knows WCHAR_T pseudo-charset - if (m2w == (iconv_t)-1) + psz += 3; + len++; + } + else + { + unsigned cnt; + for (cnt = 0; cc > utf8_max[cnt]; cnt++) { - ms_wcCharsetName = "WCHAR_T"; - m2w = iconv_open(ms_wcCharsetName, wxConvLibc.cWX2MB(name)); } - if (m2w != (iconv_t)-1) + if (!cnt) { - 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)) - { - ms_wcCharsetName = NULL; - wxLogLastError(wxT("iconv")); - wxLogError(_("Convertion to charset '%s' doesn't work."), name); - } - else - { - ms_wcNeedsSwap = wbuf[0] != (wchar_t)buf[0]; - } + // plain ASCII char + if (buf) + *buf++ = (char) cc; + len++; } else { - ms_wcCharsetName = NULL; - - // VS: we must not output an error here, since wxWindows 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( + len += cnt + 1; + if (buf) + { + *buf++ = (char) ((-128 >> cnt) | ((cc >> (cnt * 6)) & (0x3f >> cnt))); + while (cnt--) + *buf++ = (char) (0x80 | ((cc >> (cnt * 6)) & 0x3f)); + } } } - wxLogTrace(wxT("strconv"), wxT("wchar_t charset is '%s', needs swap: %i"), ms_wcCharsetName, ms_wcNeedsSwap); - } - else // we already have ms_wcCharsetName - { - m2w = iconv_open(ms_wcCharsetName, wxConvLibc.cWX2MB(name)); } - // NB: don't ever pass NULL to iconv_open(), it may crash! - if ( ms_wcCharsetName ) + 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 ) { - w2m = iconv_open(wxConvLibc.cWX2MB(name), ms_wcCharsetName); + // 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 + else // we already have the length { - w2m = (iconv_t)-1; + // we can only convert an entire number of UTF-16 characters + if ( srcLen % BYTES_PER_CHAR ) + return wxCONV_FAILED; } + + return srcLen; } -IC_CharSet::~IC_CharSet() +// 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 { - if ( m2w != (iconv_t)-1 ) - iconv_close(m2w); - if ( w2m != (iconv_t)-1 ) - iconv_close(w2m); + // 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 IC_CharSet::MB2WC(wchar_t *buf, const char *psz, size_t n) +size_t +wxMBConvUTF16straight::FromWChar(char *dst, size_t dstLen, + const wchar_t *src, size_t srcLen) const { - size_t inbuf = strlen(psz); - size_t outbuf = n * SIZEOF_WCHAR_T; - size_t res, cres; - // VS: Use these instead of psz, buf because iconv() modifies its arguments: - wchar_t *bufPtr = buf; - const char *pszPtr = psz; + if ( srcLen == wxNO_LEN ) + srcLen = wxWcslen(src) + 1; - if (buf) + srcLen *= BYTES_PER_CHAR; + + if ( dst ) { - // have destination buffer, convert there - cres = iconv(m2w, - ICONV_CHAR_CAST(&pszPtr), &inbuf, - (char**)&bufPtr, &outbuf); - res = n - (outbuf / SIZEOF_WCHAR_T); + if ( dstLen < srcLen ) + return wxCONV_FAILED; - if (ms_wcNeedsSwap) - { - // convert to native endianness - WC_BSWAP(buf /* _not_ bufPtr */, res) - } + memcpy(dst, src, srcLen); } - 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 ); + return srcLen; +} - res += 8-(outbuf/SIZEOF_WCHAR_T); - } while ((cres==(size_t)-1) && (errno==E2BIG)); - } +// ---------------------------------------------------------------------------- +// endian-reversing conversions +// ---------------------------------------------------------------------------- - if (ICONV_FAILED(cres, inbuf)) +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 ) { - //VS: it is ok if iconv fails, hence trace only - wxLogTrace(wxT("strconv"), wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode())); - return (size_t)-1; + 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 res; + return srcLen; } -size_t IC_CharSet::WC2MB(char *buf, const wchar_t *psz, size_t n) +size_t +wxMBConvUTF16swap::FromWChar(char *dst, size_t dstLen, + const wchar_t *src, size_t srcLen) const { -#if defined(__BORLANDC__) && (__BORLANDC__ > 0x530) - size_t inbuf = std::wcslen(psz) * SIZEOF_WCHAR_T; -#else - size_t inbuf = ::wcslen(psz) * SIZEOF_WCHAR_T; -#endif - size_t outbuf = n; - size_t res, cres; + if ( srcLen == wxNO_LEN ) + srcLen = wxWcslen(src) + 1; - wchar_t *tmpbuf = 0; + srcLen *= BYTES_PER_CHAR; - if (ms_wcNeedsSwap) + if ( dst ) { - // need to copy to temp buffer to switch endianness - // this absolutely doesn't rock! - // (no, doing WC_BSWAP twice on the original buffer won't help, as it - // could be in read-only memory, or be accessed in some other thread) - tmpbuf=(wchar_t*)malloc((inbuf+1)*SIZEOF_WCHAR_T); - memcpy(tmpbuf,psz,(inbuf+1)*SIZEOF_WCHAR_T); - WC_BSWAP(tmpbuf, inbuf) - psz=tmpbuf; + 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); + } } - if (buf) + 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 + + 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 { - // have destination buffer, convert there - cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf ); + /* + 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) + { + Init( wxMacGetSystemEncFromFontEnc( wxFontMapperBase::Get()->CharsetToEncoding(name, false) ) ); + } +#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 ; + m_char_encoding = CreateTextEncoding(encoding, encodingVariant, encodingFormat) ; + m_unicode_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault, 0, kUnicode16BitFormat) ; + } + + virtual void CreateIfNeeded() const + { + if ( m_MB2WC_converter == NULL && m_WC2MB_converter == NULL ) + { + 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 + + 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 + + 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; + + 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 ) ; + + 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 + } - res = n-outbuf; + return res ; } - else + + size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const { - // no destination buffer... convert using temp buffer - // to calculate destination buffer requirement - char tbuf[16]; - res = 0; - do { - buf = tbuf; outbuf = 16; + 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 ) ; + } - cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf ); + ByteCount byteBufferLen = n * sizeof( UniChar ) ; - res += 16 - outbuf; - } while ((cres==(size_t)-1) && (errno==E2BIG)); - } +#if SIZEOF_WCHAR_T == 4 + ubuf = (UniChar*) malloc( byteBufferLen + 2 ) ; +#else + ubuf = (UniChar*) (buf ? buf : tbuf) ; +#endif - if (ms_wcNeedsSwap) - { - free(tmpbuf); - } + ByteCount dcubuflen = byteBufferLen * 2 + 2 ; + ByteCount dcubufread , dcubufwritten ; + UniChar *dcubuf = (UniChar*) malloc( dcubuflen ) ; - if (ICONV_FAILED(cres, inbuf)) - { - //VS: it is ok if iconv fails, hence trace only - wxLogTrace(wxT("strconv"), wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode())); - return (size_t)-1; - } + 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 ; - return res; -} + // now from the decomposed UniChar to properly composed uniChar + ConvertFromUnicodeToText( m_uniBack , byteOutLen , dcubuf , + kUnicodeDefaultDirectionMask, 0, NULL, NULL, NULL, dcubuflen , &dcubufread , &dcubufwritten , ubuf ) ; -#endif // HAVE_ICONV + free( dcubuf ); + byteOutLen = dcubufwritten ; + ubuf[byteOutLen / sizeof( UniChar ) ] = 0 ; -// ============================================================================ -// Win32 conversion classes -// ============================================================================ -#if defined(__WIN32__) && !defined(__WXMICROWIN__) +#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 -extern long wxCharsetToCodepage(const wxChar *charset); // from utils.cpp + if ( buf == NULL ) + free(tbuf) ; -class CP_CharSet : public wxCharacterSet -{ -public: - CP_CharSet(const wxChar* name) - : wxCharacterSet(name) - { - m_CodePage = wxCharsetToCodepage(name); - } + if ( buf && res < n) + buf[res] = 0; - size_t MB2WC(wchar_t *buf, const char *psz, size_t n) - { - size_t len = - MultiByteToWideChar(m_CodePage, 0, psz, -1, buf, buf ? n : 0); - //VS: returns # of written chars for buf!=NULL and *size* - // needed buffer for buf==NULL - return len ? (buf ? len : len-1) : (size_t)-1; + return res ; } - size_t WC2MB(char *buf, const wchar_t *psz, size_t n) + virtual void CreateIfNeeded() const { - size_t len = WideCharToMultiByte(m_CodePage, 0, psz, -1, buf, - buf ? n : 0, NULL, NULL); - //VS: returns # of written chars for buf!=NULL and *size* - // needed buffer for buf==NULL - return len ? (buf ? len : len-1) : (size_t)-1; + 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")) ; + } } - - bool usable() const - { return m_CodePage != -1; } - -public: - long m_CodePage; +protected : + mutable UnicodeToTextInfo m_uni; + mutable UnicodeToTextInfo m_uniBack; + mutable UnicodeMapping m_map; }; -#endif // __WIN32__ +#endif // defined(__WXMAC__) && defined(TARGET_CARBON) // ============================================================================ // wxEncodingConverter based conversion classes @@ -782,152 +3084,177 @@ public: #if wxUSE_FONTMAP -class EC_CharSet : public wxCharacterSet +class wxMBConv_wxwin : public wxMBConv { +private: + void Init() + { + m_ok = m2w.Init(m_enc, wxFONTENCODING_UNICODE) && + w2m.Init(wxFONTENCODING_UNICODE, m_enc); + } + public: // temporarily just use wxEncodingConverter stuff, // so that it works while a better implementation is built - EC_CharSet(const wxChar* name) : wxCharacterSet(name), - enc(wxFONTENCODING_SYSTEM) + wxMBConv_wxwin(const wxChar* name) { if (name) - enc = wxTheFontMapper->CharsetToEncoding(name, FALSE); + m_enc = wxFontMapperBase::Get()->CharsetToEncoding(name, false); + else + m_enc = wxFONTENCODING_SYSTEM; - m_ok = m2w.Init(enc, wxFONTENCODING_UNICODE) && - w2m.Init(wxFONTENCODING_UNICODE, enc); + Init(); } - size_t MB2WC(wchar_t *buf, const char *psz, size_t WXUNUSED(n)) + 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) - m2w.Convert(psz,buf); + { + if (!m2w.Convert(psz, buf)) + return wxCONV_FAILED; + } return inbuf; } - size_t WC2MB(char *buf, const wchar_t *psz, size_t WXUNUSED(n)) + size_t WC2MB(char *buf, const wchar_t *psz, size_t WXUNUSED(n)) const { -#if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) ) \ - || ( defined(__MWERKS__) && defined(__WXMSW__) ) - size_t inbuf = std::wcslen(psz); -#else - size_t inbuf = ::wcslen(psz); -#endif + const size_t inbuf = wxWcslen(psz); if (buf) - w2m.Convert(psz,buf); + { + if (!w2m.Convert(psz, buf)) + return wxCONV_FAILED; + } return inbuf; } - bool usable() const { return m_ok; } + 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 enc; + wxFontEncoding m_enc; wxEncodingConverter m2w, w2m; +private: // were we initialized successfully? bool m_ok; -}; -#endif // wxUSE_FONTMAP - -// ---------------------------------------------------------------------------- -// the function creating the wxCharacterSet for the specified charset on the -// current system, trying all possibilities -// ---------------------------------------------------------------------------- + DECLARE_NO_COPY_CLASS(wxMBConv_wxwin) +}; -static wxCharacterSet *wxGetCharacterSet(const wxChar *name) +// make the constructors available for unit testing +WXDLLIMPEXP_BASE wxMBConv* new_wxMBConv_wxwin( const wxChar* name ) { - // check for the special case of ASCII charset -#if wxUSE_FONTMAP - if ( wxTheFontMapper->CharsetToEncoding(name) == wxFONTENCODING_DEFAULT ) -#else // wxUSE_FONTMAP - if ( !name ) -#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP + wxMBConv_wxwin* result = new wxMBConv_wxwin( name ); + if ( !result->IsOk() ) { - // don't convert at all - return NULL; + delete result; + return 0; } - // the test above must have taken care of this case - wxCHECK_MSG( name, NULL, _T("NULL name must be wxFONTENCODING_DEFAULT") ); - - wxCharacterSet *cset; + return result; +} - if ( wxStricmp(name, wxT("UTF8")) == 0 || wxStricmp(name, wxT("UTF-8")) == 0) - { - cset = new ID_CharSet(name, &wxConvUTF8); - } - else - { -#ifdef HAVE_ICONV - cset = new IC_CharSet(name); -#else // !HAVE_ICONV - cset = NULL; -#endif // HAVE_ICONV/!HAVE_ICONV - } +#endif // wxUSE_FONTMAP - // it can only be NULL in this case -#ifndef HAVE_ICONV - if ( cset ) -#endif // !HAVE_ICONV - { - if ( cset->usable() ) - return cset; +// ============================================================================ +// wxCSConv implementation +// ============================================================================ - delete cset; - cset = NULL; - } +void wxCSConv::Init() +{ + m_name = NULL; + m_convReal = NULL; + m_deferred = true; +} -#if defined(__WIN32__) && !defined(__WXMICROWIN__) - cset = new CP_CharSet(name); - if ( cset->usable() ) - return cset; +wxCSConv::wxCSConv(const wxChar *charset) +{ + Init(); - delete cset; - cset = NULL; -#endif // __WIN32__ + if ( charset ) + { + SetName(charset); + } #if wxUSE_FONTMAP - cset = new EC_CharSet(name); - if ( cset->usable() ) - return cset; + m_encoding = wxFontMapperBase::GetEncodingFromName(charset); +#else + m_encoding = wxFONTENCODING_SYSTEM; +#endif +} - delete cset; - cset = NULL; -#endif // wxUSE_FONTMAP +wxCSConv::wxCSConv(wxFontEncoding encoding) +{ + if ( encoding == wxFONTENCODING_MAX || encoding == wxFONTENCODING_DEFAULT ) + { + wxFAIL_MSG( _T("invalid encoding value in wxCSConv ctor") ); + + encoding = wxFONTENCODING_SYSTEM; + } - wxLogError(_("Cannot convert from encoding '%s'!"), name); + Init(); - return NULL; + m_encoding = encoding; } -// ============================================================================ -// wxCSConv implementation -// ============================================================================ +wxCSConv::~wxCSConv() +{ + Clear(); +} -wxCSConv::wxCSConv(const wxChar *charset) +wxCSConv::wxCSConv(const wxCSConv& conv) + : wxMBConv() { - m_name = (wxChar *)NULL; - m_cset = (wxCharacterSet *) NULL; - m_deferred = TRUE; + Init(); - SetName(charset); + SetName(conv.m_name); + m_encoding = conv.m_encoding; } -wxCSConv::~wxCSConv() +wxCSConv& wxCSConv::operator=(const wxCSConv& conv) { Clear(); + + 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) @@ -935,33 +3262,268 @@ void wxCSConv::SetName(const wxChar *charset) if (charset) { m_name = wxStrdup(charset); - m_deferred = TRUE; + 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::LoadNow() +void wxCSConv::CreateConvIfNeeded() const { - if (m_deferred) + if ( m_deferred ) { - if ( !m_name ) + 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 ) { - wxString name = wxLocale::GetSystemEncodingName(); - if ( !name.empty() ) - SetName(name); +#if wxUSE_INTL + self->m_name = wxStrdup(wxLocale::GetSystemEncodingName()); +#else + // fallback to some reasonable default: + self->m_encoding = wxFONTENCODING_ISO8859_1; +#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); @@ -977,27 +3539,90 @@ size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const size_t wxCSConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const { - ((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) -#if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) ) \ - || ( defined(__MWERKS__) && defined(__WXMSW__) ) - size_t len=std::wcslen(psz); -#else - size_t len=::wcslen(psz); -#endif + const size_t len = wxWcslen(psz); if (buf) { for (size_t c = 0; c <= len; c++) - buf[c] = (psz[c] > 0xff) ? '?' : psz[c]; + { + if (psz[c] > 0xFF) + return wxCONV_FAILED; + + buf[c] = (char)psz[c]; + } + } + else + { + for (size_t c = 0; c <= len; c++) + { + if (psz[c] > 0xFF) + return wxCONV_FAILED; + } } return len; } -#endif // wxUSE_WCHAR_T +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 + wxConvLibcObj; +#endif + +#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