X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6a17b868de5fd4b78988b355b9e1efbb766cd6f2..538a2cfaf2be9f864e58c9a9fe232966af6bf2a0:/src/common/strconv.cpp diff --git a/src/common/strconv.cpp b/src/common/strconv.cpp index 7961dfea8a..73fe64d115 100644 --- a/src/common/strconv.cpp +++ b/src/common/strconv.cpp @@ -15,6 +15,10 @@ // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" +#ifdef __BORLANDC__ + #pragma hdrstop +#endif //__BORLANDC__ + #ifndef WX_PRECOMP #include "wx/intl.h" #include "wx/log.h" @@ -24,13 +28,6 @@ #include "wx/strconv.h" -#if wxUSE_WCHAR_T - -#ifdef __WINDOWS__ - #include "wx/msw/private.h" - #include "wx/msw/missing.h" -#endif - #ifndef __WXWINCE__ #include #endif @@ -40,13 +37,11 @@ #include #if defined(__WIN32__) && !defined(__WXMICROWIN__) + #include "wx/msw/private.h" + #include "wx/msw/missing.h" #define wxHAVE_WIN32_MB2WC #endif -#ifdef __SALFORDC__ - #include -#endif - #ifdef HAVE_ICONV #include #include "wx/thread.h" @@ -55,19 +50,12 @@ #include "wx/encconv.h" #include "wx/fontmap.h" -#ifdef __WXMAC__ -#ifndef __DARWIN__ -#include -#include -#include -#endif - -// includes Mac headers -#include "wx/mac/private.h" -#endif +#ifdef __DARWIN__ +#include "wx/osx/core/private/strconv_cf.h" +#endif //def __DARWIN__ -#define TRACE_STRCONV _T("strconv") +#define TRACE_STRCONV wxT("strconv") // WC_UTF16 is defined only if sizeof(wchar_t) == 2, otherwise it's supposed to // be 4 bytes @@ -152,7 +140,7 @@ static wxUint32 wxDecodeSurrogate(const wxDecodeSurrogate_t **pSrc) { wxUint32 out; const size_t - n = decode_utf16(wx_reinterpret_cast(const wxUint16 *, *pSrc), out); + n = decode_utf16(reinterpret_cast(*pSrc), out); if ( n == wxCONV_FAILED ) *pSrc = NULL; else @@ -170,11 +158,15 @@ wxMBConv::ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen) const { // although new conversion classes are supposed to implement this function - // directly, the existins ones only implement the old MB2WC() and so, to + // directly, the existing 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 + // + // moreover, some conversion classes simply can't implement ToWChar() + // directly, the primary example is wxConvLibc: mbstowcs() only handles + // NUL-terminated strings // the number of chars [which would be] written to dst [if it were not NULL] size_t dstWritten = 0; @@ -215,6 +207,21 @@ wxMBConv::ToWChar(wchar_t *dst, size_t dstLen, srcEnd = NULL; } + // the idea of this code is straightforward: it converts a NUL-terminated + // chunk of the string during each iteration and updates the output buffer + // with the result + // + // all the complication come from the fact that this function, for + // historical reasons, must behave in 2 subtly different ways when it's + // called with a fixed number of characters and when it's called for the + // entire NUL-terminated string: in the former case (srcEnd != NULL) we + // must count all characters we convert, NUL or not; but in the latter we + // do not count the trailing NUL -- but still count all the NULs inside the + // string + // + // so for the (simple) former case we just always count the trailing NUL, + // but for the latter we need to wait until we see if there is going to be + // another loop iteration and only count it then for ( ;; ) { // try to convert the current chunk @@ -222,11 +229,11 @@ wxMBConv::ToWChar(wchar_t *dst, size_t dstLen, if ( lenChunk == wxCONV_FAILED ) return wxCONV_FAILED; - lenChunk++; // for the L'\0' at the end of this chunk - dstWritten += lenChunk; + if ( !srcEnd ) + dstWritten++; - if ( lenChunk == 1 ) + if ( !lenChunk ) { // nothing left in the input string, conversion succeeded break; @@ -237,20 +244,25 @@ wxMBConv::ToWChar(wchar_t *dst, size_t dstLen, if ( dstWritten > dstLen ) return wxCONV_FAILED; - if ( MB2WC(dst, src, lenChunk) == wxCONV_FAILED ) + // +1 is for trailing NUL + if ( MB2WC(dst, src, lenChunk + 1) == wxCONV_FAILED ) return wxCONV_FAILED; dst += lenChunk; + if ( !srcEnd ) + dst++; } if ( !srcEnd ) { // we convert just one chunk in this case as this is the entire - // string anyhow + // string anyhow (and we don't count the trailing NUL in this case) break; } - // advance the input pointer past the end of this chunk + // advance the input pointer past the end of this chunk: notice that we + // will always stop before srcEnd because we know that the chunk is + // always properly NUL-terminated while ( NotAllNULs(src, nulLen) ) { // notice that we must skip over multiple bytes here as we suppose @@ -260,11 +272,18 @@ wxMBConv::ToWChar(wchar_t *dst, size_t dstLen, src += nulLen; } - src += nulLen; // skipping over its terminator as well + // if the buffer ends before this NUL, we shouldn't count it in our + // output so skip the code below + if ( src == srcEnd ) + break; + + // do count this terminator as it's inside the buffer we convert + dstWritten++; + if ( dst ) + dst++; + + src += nulLen; // skip the terminator itself - // 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; } @@ -279,13 +298,15 @@ wxMBConv::FromWChar(char *dst, size_t dstLen, // the number of chars [which would be] written to dst [if it were not NULL] size_t dstWritten = 0; + // if we don't know its length we have no choice but to assume that it is + // NUL-terminated (notice that it can still be NUL-terminated even if + // explicit length is given but it doesn't change our return value) + const bool isNulTerminated = srcLen == wxNO_LEN; + // 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 ) + if ( isNulTerminated ) { srcLen = wxWcslen(src) + 1; } @@ -300,27 +321,65 @@ wxMBConv::FromWChar(char *dst, size_t dstLen, const size_t lenNul = GetMBNulLen(); for ( const wchar_t * const srcEnd = src + srcLen; src < srcEnd; - src += wxWcslen(src) + 1 /* skip L'\0' too */ ) + src++ /* skip L'\0' too */ ) { // try to convert the current chunk size_t lenChunk = WC2MB(NULL, src, 0); - if ( lenChunk == wxCONV_FAILED ) return wxCONV_FAILED; - lenChunk += lenNul; dstWritten += lenChunk; + const wchar_t * const + chunkEnd = isNulTerminated ? srcEnd - 1 : src + wxWcslen(src); + + // our return value accounts for the trailing NUL(s), unlike that of + // WC2MB(), however don't do it for the last NUL we artificially added + // ourselves above + if ( chunkEnd < srcEnd ) + dstWritten += lenNul; + if ( dst ) { if ( dstWritten > dstLen ) return wxCONV_FAILED; - if ( WC2MB(dst, src, lenChunk) == wxCONV_FAILED ) + // if we know that there is enough space in the destination buffer + // (because we accounted for lenNul in dstWritten above), we can + // convert directly in place -- but otherwise we need another + // temporary buffer to ensure that we don't overwrite the output + wxCharBuffer dstBuf; + char *dstTmp; + if ( chunkEnd == srcEnd ) + { + dstBuf = wxCharBuffer(lenChunk + lenNul - 1); + dstTmp = dstBuf.data(); + } + else + { + dstTmp = dst; + } + + if ( WC2MB(dstTmp, src, lenChunk + lenNul) == wxCONV_FAILED ) return wxCONV_FAILED; + if ( dstTmp != dst ) + { + // copy everything up to but excluding the terminating NUL(s) + // into the real output buffer + memcpy(dst, dstTmp, lenChunk); + + // micro-optimization: if dstTmp != dst it means that chunkEnd + // == srcEnd and so we're done, no need to update anything below + break; + } + dst += lenChunk; + if ( chunkEnd < srcEnd ) + dst += lenNul; } + + src = chunkEnd; } return dstWritten; @@ -360,14 +419,14 @@ 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); + const size_t nLen = ToWChar(NULL, 0, psz); if ( nLen != wxCONV_FAILED ) { // now do the actual conversion - wxWCharBuffer buf(nLen /* +1 added implicitly */); + wxWCharBuffer buf(nLen - 1 /* +1 added implicitly */); // +1 for the trailing NULL - if ( MB2WC(buf.data(), psz, nLen + 1) != wxCONV_FAILED ) + if ( ToWChar(buf.data(), nLen, psz) != wxCONV_FAILED ) return buf; } } @@ -379,14 +438,11 @@ const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *pwz) const { if ( pwz ) { - const size_t nLen = WC2MB(NULL, pwz, 0); + const size_t nLen = FromWChar(NULL, 0, pwz); 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 ) + wxCharBuffer buf(nLen - 1); + if ( FromWChar(buf.data(), nLen, pwz) != wxCONV_FAILED ) return buf; } } @@ -400,13 +456,22 @@ wxMBConv::cMB2WC(const char *inBuff, size_t inLen, size_t *outLen) const const size_t dstLen = ToWChar(NULL, 0, inBuff, inLen); if ( dstLen != wxCONV_FAILED ) { - wxWCharBuffer wbuf(dstLen - 1); + // notice that we allocate space for dstLen+1 wide characters here + // because we want the buffer to always be NUL-terminated, even if the + // input isn't (as otherwise the caller has no way to know its length) + wxWCharBuffer wbuf(dstLen); if ( ToWChar(wbuf.data(), dstLen, inBuff, inLen) != wxCONV_FAILED ) { if ( outLen ) { *outLen = dstLen; - if ( wbuf[dstLen - 1] == L'\0' ) + + // we also need to handle NUL-terminated input strings + // specially: for them the output is the length of the string + // excluding the trailing NUL, however if we're asked to + // convert a specific number of characters we return the length + // of the resulting output even if it's NUL-terminated + if ( inLen == wxNO_LEN ) (*outLen)--; } @@ -426,21 +491,22 @@ wxMBConv::cWC2MB(const wchar_t *inBuff, size_t inLen, size_t *outLen) const size_t dstLen = FromWChar(NULL, 0, inBuff, inLen); if ( dstLen != wxCONV_FAILED ) { - // special case of empty input: can't allocate 0 size buffer below as - // wxCharBuffer insists on NUL-terminating it - wxCharBuffer buf(dstLen ? dstLen - 1 : 1); + const size_t nulLen = GetMBNulLen(); + + // as above, ensure that the buffer is always NUL-terminated, even if + // the input is not + wxCharBuffer buf(dstLen + nulLen - 1); + memset(buf.data() + dstLen, 0, nulLen); 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) ) + if ( inLen == wxNO_LEN ) { - // in this case the output is NUL-terminated and we're not - // supposed to count NUL + // in this case both input and output are NUL-terminated + // and we're not supposed to count NUL *outLen -= nulLen; } } @@ -455,6 +521,42 @@ wxMBConv::cWC2MB(const wchar_t *inBuff, size_t inLen, size_t *outLen) const return wxCharBuffer(); } +const wxWCharBuffer wxMBConv::cMB2WC(const wxScopedCharBuffer& buf) const +{ + const size_t srcLen = buf.length(); + if ( srcLen ) + { + const size_t dstLen = ToWChar(NULL, 0, buf, srcLen); + if ( dstLen != wxCONV_FAILED ) + { + wxWCharBuffer wbuf(dstLen); + wbuf.data()[dstLen] = L'\0'; + if ( ToWChar(wbuf.data(), dstLen, buf, srcLen) != wxCONV_FAILED ) + return wbuf; + } + } + + return wxScopedWCharBuffer::CreateNonOwned(L"", 0); +} + +const wxCharBuffer wxMBConv::cWC2MB(const wxScopedWCharBuffer& wbuf) const +{ + const size_t srcLen = wbuf.length(); + if ( srcLen ) + { + const size_t dstLen = FromWChar(NULL, 0, wbuf, srcLen); + if ( dstLen != wxCONV_FAILED ) + { + wxCharBuffer buf(dstLen); + buf.data()[dstLen] = '\0'; + if ( FromWChar(buf.data(), dstLen, wbuf, srcLen) != wxCONV_FAILED ) + return buf; + } + } + + return wxScopedCharBuffer::CreateNonOwned("", 0); +} + // ---------------------------------------------------------------------------- // wxMBConvLibc // ---------------------------------------------------------------------------- @@ -475,11 +577,11 @@ size_t wxMBConvLibc::WC2MB(char *buf, const wchar_t *psz, size_t n) const #ifdef __UNIX__ -wxConvBrokenFileNames::wxConvBrokenFileNames(const wxChar *charset) +wxConvBrokenFileNames::wxConvBrokenFileNames(const wxString& charset) { - if ( !charset || wxStricmp(charset, _T("UTF-8")) == 0 - || wxStricmp(charset, _T("UTF8")) == 0 ) - m_conv = new wxMBConvUTF8(wxMBConvUTF8::MAP_INVALID_UTF8_TO_OCTAL); + if ( wxStricmp(charset, wxT("UTF-8")) == 0 || + wxStricmp(charset, wxT("UTF8")) == 0 ) + m_conv = new wxMBConvUTF8(wxMBConvUTF8::MAP_INVALID_UTF8_TO_PUA); else m_conv = new wxCSConv(charset); } @@ -491,6 +593,8 @@ wxConvBrokenFileNames::wxConvBrokenFileNames(const wxChar *charset) // ---------------------------------------------------------------------------- // Implementation (C) 2004 Fredrik Roubert +// +// Changes to work in streaming mode (C) 2008 Vadim Zeitlin // // BASE64 decoding table @@ -531,70 +635,149 @@ static const unsigned char utf7unb64[] = 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; -size_t wxMBConvUTF7::MB2WC(wchar_t *buf, const char *psz, size_t n) const +size_t wxMBConvUTF7::ToWChar(wchar_t *dst, size_t dstLen, + const char *src, size_t srcLen) const { + DecoderState stateOrig, + *statePtr; + if ( srcLen == wxNO_LEN ) + { + // convert the entire string, up to and including the trailing NUL + srcLen = strlen(src) + 1; + + // when working on the entire strings we don't update nor use the shift + // state from the previous call + statePtr = &stateOrig; + } + else // when working with partial strings we do use the shift state + { + statePtr = const_cast(&m_stateDecoder); + + // also save the old state to be able to rollback to it on error + stateOrig = m_stateDecoder; + } + + // but to simplify the code below we use this variable in both cases + DecoderState& state = *statePtr; + + + // number of characters [which would have been] written to dst [if it were + // not NULL] size_t len = 0; - while ( *psz && (!buf || (len < n)) ) + const char * const srcEnd = src + srcLen; + + while ( (src < srcEnd) && (!dst || (len < dstLen)) ) { - unsigned char cc = *psz++; - if (cc != '+') - { - // plain ASCII char - if (buf) - *buf++ = cc; - len++; - } - else if (*psz == '-') - { - // encoded plus sign - if (buf) - *buf++ = cc; - len++; - psz++; - } - else // start of BASE64 encoded string + const unsigned char cc = *src++; + + if ( state.IsShifted() ) { - bool lsb, ok; - unsigned int d, l; - for ( ok = lsb = false, d = 0, l = 0; - (cc = utf7unb64[(unsigned char)*psz]) != 0xff; - psz++ ) + const unsigned char dc = utf7unb64[cc]; + if ( dc == 0xff ) + { + // end of encoded part, check that nothing was left: there can + // be up to 4 bits of 0 padding but nothing else (we also need + // to check isLSB as we count bits modulo 8 while a valid UTF-7 + // encoded sequence must contain an integral number of UTF-16 + // characters) + if ( state.isLSB || state.bit > 4 || + (state.accum & ((1 << state.bit) - 1)) ) + { + if ( !len ) + state = stateOrig; + + return wxCONV_FAILED; + } + + state.ToDirect(); + + // re-parse this character normally below unless it's '-' which + // is consumed by the decoder + if ( cc == '-' ) + continue; + } + else // valid encoded character { - d <<= 6; - d += cc; - for (l += 6; l >= 8; lsb = !lsb) + // mini base64 decoder: each character is 6 bits + state.bit += 6; + state.accum <<= 6; + state.accum += dc; + + if ( state.bit >= 8 ) { - unsigned char c = (unsigned char)((d >> (l -= 8)) % 256); - if (lsb) + // got the full byte, consume it + state.bit -= 8; + unsigned char b = (state.accum >> state.bit) & 0x00ff; + + if ( state.isLSB ) { - if (buf) - *buf++ |= c; - len ++; + // we've got the full word, output it + if ( dst ) + *dst++ = (state.msb << 8) | b; + len++; + state.isLSB = false; } - else + else // MSB { - if (buf) - *buf = (wchar_t)(c << 8); + // just store it while we wait for LSB + state.msb = b; + state.isLSB = true; } - - ok = true; } } + } - if ( !ok ) + if ( state.IsDirect() ) + { + // start of an encoded segment? + if ( cc == '+' ) { - // in valid UTF7 we should have valid characters after '+' - return wxCONV_FAILED; + if ( *src == '-' ) + { + // just the encoded plus sign, don't switch to shifted mode + if ( dst ) + *dst++ = '+'; + len++; + src++; + } + else if ( utf7unb64[(unsigned)*src] == 0xff ) + { + // empty encoded chunks are not allowed + if ( !len ) + state = stateOrig; + + return wxCONV_FAILED; + } + else // base-64 encoded chunk follows + { + state.ToShifted(); + } } + else // not '+' + { + // only printable 7 bit ASCII characters (with the exception of + // NUL, TAB, CR and LF) can be used directly + if ( cc >= 0x7f || (cc < ' ' && + !(cc == '\0' || cc == '\t' || cc == '\r' || cc == '\n')) ) + return wxCONV_FAILED; - if (*psz == '-') - psz++; + if ( dst ) + *dst++ = cc; + len++; + } } } - if ( buf && (len < n) ) - *buf = '\0'; + if ( !len ) + { + // as we didn't read any characters we should be called with the same + // data (followed by some more new data) again later so don't save our + // state + state = stateOrig; + + return wxCONV_FAILED; + } return len; } @@ -624,7 +807,7 @@ static const unsigned char utf7enb64[] = // static const unsigned char utf7encode[128] = { - 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 3, 3, 2, 3, 3, + 0, 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, @@ -634,21 +817,72 @@ static const unsigned char utf7encode[128] = 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 +static inline bool wxIsUTF7Direct(wchar_t wc) { + return wc < 0x80 && utf7encode[wc] < 1; +} + +size_t wxMBConvUTF7::FromWChar(char *dst, size_t dstLen, + const wchar_t *src, size_t srcLen) const +{ + EncoderState stateOrig, + *statePtr; + if ( srcLen == wxNO_LEN ) + { + // we don't apply the stored state when operating on entire strings at + // once + statePtr = &stateOrig; + + srcLen = wxWcslen(src) + 1; + } + else // do use the mode we left the output in previously + { + stateOrig = m_stateEncoder; + statePtr = const_cast(&m_stateEncoder); + } + + EncoderState& state = *statePtr; + + size_t len = 0; - while (*psz && ((!buf) || (len < n))) + const wchar_t * const srcEnd = src + srcLen; + while ( src < srcEnd && (!dst || len < dstLen) ) { - wchar_t cc = *psz++; - if (cc < 0x80 && utf7encode[cc] < 1) + wchar_t cc = *src++; + if ( wxIsUTF7Direct(cc) ) { - // plain ASCII char - if (buf) - *buf++ = (char)cc; + if ( state.IsShifted() ) + { + // pad with zeros the last encoded block if necessary + if ( state.bit ) + { + if ( dst ) + *dst++ = utf7enb64[((state.accum % 16) << (6 - state.bit)) % 64]; + len++; + } + + state.ToDirect(); + + if ( dst ) + *dst++ = '-'; + len++; + } + if ( dst ) + *dst++ = (char)cc; len++; } + else if ( cc == '+' && state.IsDirect() ) + { + if ( dst ) + { + *dst++ = '+'; + *dst++ = '-'; + } + + len += 2; + } #ifndef WC_UTF16 else if (((wxUint32)cc) > 0xffff) { @@ -658,52 +892,45 @@ size_t wxMBConvUTF7::WC2MB(char *buf, const wchar_t *psz, size_t n) const #endif else { - if (buf) - *buf++ = '+'; + if ( state.IsDirect() ) + { + state.ToShifted(); - len++; - if (cc != '+') + if ( dst ) + *dst++ = '+'; + len++; + } + + // BASE64 encode string + for ( ;; ) { - // BASE64 encode string - unsigned int lsb, d, l; - for (d = 0, l = 0; /*nothing*/; psz++) + for ( unsigned lsb = 0; lsb < 2; lsb++ ) { - for (lsb = 0; lsb < 2; lsb ++) - { - d <<= 8; - d += lsb ? cc & 0xff : (cc & 0xff00) >> 8; + state.accum <<= 8; + state.accum += lsb ? cc & 0xff : (cc & 0xff00) >> 8; - for (l += 8; l >= 6; ) - { - l -= 6; - if (buf) - *buf++ = utf7enb64[(d >> l) % 64]; - len++; - } + for (state.bit += 8; state.bit >= 6; ) + { + state.bit -= 6; + if ( dst ) + *dst++ = utf7enb64[(state.accum >> state.bit) % 64]; + len++; } - - cc = *psz; - if (!(cc) || (cc < 0x80 && utf7encode[cc] < 1)) - break; } - if (l != 0) - { - if (buf) - *buf++ = utf7enb64[((d % 16) << (6 - l)) % 64]; + if ( src == srcEnd || wxIsUTF7Direct(cc = *src) ) + break; - len++; - } + src++; } - - if (buf) - *buf++ = '-'; - len++; } } - if (buf && (len < n)) - *buf = 0; + // we need to restore the original encoder state if we were called just to + // calculate the amount of space needed as we will presumably be called + // again to really convert the data now + if ( !dst ) + state = stateOrig; return len; } @@ -712,7 +939,7 @@ size_t wxMBConvUTF7::WC2MB(char *buf, const wchar_t *psz, size_t n) const // UTF-8 // ---------------------------------------------------------------------------- -static wxUint32 utf8_max[]= +static const wxUint32 utf8_max[]= { 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff, 0xffffffff }; // boundaries of the private use area we use to (temporarily) remap invalid @@ -720,59 +947,342 @@ static wxUint32 utf8_max[]= const wxUint32 wxUnicodePUA = 0x100000; const wxUint32 wxUnicodePUAEnd = wxUnicodePUA + 256; -size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const +// this table gives the length of the UTF-8 encoding from its first character: +const unsigned char tableUtf8Lengths[256] = { + // single-byte sequences (ASCII): + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 00..0F + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 10..1F + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 20..2F + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 30..3F + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 40..4F + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 50..5F + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 60..6F + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 70..7F + + // these are invalid: + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 80..8F + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 90..9F + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // A0..AF + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // B0..BF + 0, 0, // C0,C1 + + // two-byte sequences: + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // C2..CF + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // D0..DF + + // three-byte sequences: + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, // E0..EF + + // four-byte sequences: + 4, 4, 4, 4, 4, // F0..F4 + + // these are invalid again (5- or 6-byte + // sequences and sequences for code points + // above U+10FFFF, as restricted by RFC 3629): + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 // F5..FF +}; + +size_t +wxMBConvStrictUTF8::ToWChar(wchar_t *dst, size_t dstLen, + const char *src, size_t srcLen) const { - size_t len = 0; + wchar_t *out = dstLen ? dst : NULL; + size_t written = 0; - while (*psz && ((!buf) || (len < n))) - { - const char *opsz = psz; - bool invalid = false; - unsigned char cc = *psz++, fc = cc; - unsigned cnt; - for (cnt = 0; fc & 0x80; cnt++) - fc <<= 1; + if ( srcLen == wxNO_LEN ) + srcLen = strlen(src) + 1; - if (!cnt) + for ( const char *p = src; ; p++ ) + { + if ( (srcLen == wxNO_LEN ? !*p : !srcLen) ) { - // 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)) + // all done successfully, just add the trailing NULL if we are not + // using explicit length + if ( srcLen == wxNO_LEN ) { - if (buf) - *buf++ = cc; - len++; + if ( out ) + { + if ( !dstLen ) + break; + + *out = L'\0'; + } + + written++; } + + return written; + } + + if ( out && !dstLen-- ) + break; + + wxUint32 code; + unsigned char c = *p; + + if ( c < 0x80 ) + { + if ( srcLen == 0 ) // the test works for wxNO_LEN too + break; + + if ( srcLen != wxNO_LEN ) + srcLen--; + + code = c; } else { - cnt--; - if (!cnt) + unsigned len = tableUtf8Lengths[c]; + if ( !len ) + break; + + if ( srcLen < len ) // the test works for wxNO_LEN too + break; + + if ( srcLen != wxNO_LEN ) + srcLen -= len; + + // Char. number range | UTF-8 octet sequence + // (hexadecimal) | (binary) + // ----------------------+---------------------------------------- + // 0000 0000 - 0000 007F | 0xxxxxxx + // 0000 0080 - 0000 07FF | 110xxxxx 10xxxxxx + // 0000 0800 - 0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx + // 0001 0000 - 0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + // + // Code point value is stored in bits marked with 'x', + // lowest-order bit of the value on the right side in the diagram + // above. (from RFC 3629) + + // mask to extract lead byte's value ('x' bits above), by sequence + // length: + static const unsigned char leadValueMask[] = { 0x7F, 0x1F, 0x0F, 0x07 }; + + // mask and value of lead byte's most significant bits, by length: + static const unsigned char leadMarkerMask[] = { 0x80, 0xE0, 0xF0, 0xF8 }; + static const unsigned char leadMarkerVal[] = { 0x00, 0xC0, 0xE0, 0xF0 }; + + len--; // it's more convenient to work with 0-based length here + + // extract the lead byte's value bits: + if ( (c & leadMarkerMask[len]) != leadMarkerVal[len] ) + break; + + code = c & leadValueMask[len]; + + // all remaining bytes, if any, are handled in the same way + // regardless of sequence's length: + for ( ; len; --len ) { - // invalid UTF-8 sequence - invalid = true; + c = *++p; + if ( (c & 0xC0) != 0x80 ) + return wxCONV_FAILED; + + code <<= 6; + code |= c & 0x3F; } - else + } + +#ifdef WC_UTF16 + // cast is ok because wchar_t == wxUint16 if WC_UTF16 + if ( encode_utf16(code, (wxUint16 *)out) == 2 ) + { + if ( out ) + out++; + written++; + } +#else // !WC_UTF16 + if ( out ) + *out = code; +#endif // WC_UTF16/!WC_UTF16 + + if ( out ) + out++; + + written++; + } + + return wxCONV_FAILED; +} + +size_t +wxMBConvStrictUTF8::FromWChar(char *dst, size_t dstLen, + const wchar_t *src, size_t srcLen) const +{ + char *out = dstLen ? dst : NULL; + size_t written = 0; + + for ( const wchar_t *wp = src; ; wp++ ) + { + if ( (srcLen == wxNO_LEN ? !*wp : !srcLen) ) + { + // all done successfully, just add the trailing NULL if we are not + // using explicit length + if ( srcLen == wxNO_LEN ) { - unsigned ocnt = cnt - 1; - wxUint32 res = cc & (0x3f >> cnt); - while (cnt--) + if ( out ) { - cc = *psz; - if ((cc & 0xC0) != 0x80) - { - // invalid UTF-8 sequence - invalid = true; + if ( !dstLen ) break; - } - psz++; - res = (res << 6) | (cc & 0x3f); + *out = '\0'; + } + + written++; + } + + return written; + } + + if ( srcLen != wxNO_LEN ) + srcLen--; + + wxUint32 code; +#ifdef WC_UTF16 + // cast is ok for WC_UTF16 + if ( decode_utf16((const wxUint16 *)wp, code) == 2 ) + { + // skip the next char too as we decoded a surrogate + wp++; + if ( srcLen != wxNO_LEN ) + srcLen--; + } +#else // wchar_t is UTF-32 + code = *wp & 0x7fffffff; +#endif + + unsigned len; + if ( code <= 0x7F ) + { + len = 1; + if ( out ) + { + if ( dstLen < len ) + break; + + out[0] = (char)code; + } + } + else if ( code <= 0x07FF ) + { + len = 2; + if ( out ) + { + if ( dstLen < len ) + break; + + // NB: this line takes 6 least significant bits, encodes them as + // 10xxxxxx and discards them so that the next byte can be encoded: + out[1] = 0x80 | (code & 0x3F); code >>= 6; + out[0] = 0xC0 | code; + } + } + else if ( code < 0xFFFF ) + { + len = 3; + if ( out ) + { + if ( dstLen < len ) + break; + + out[2] = 0x80 | (code & 0x3F); code >>= 6; + out[1] = 0x80 | (code & 0x3F); code >>= 6; + out[0] = 0xE0 | code; + } + } + else if ( code <= 0x10FFFF ) + { + len = 4; + if ( out ) + { + if ( dstLen < len ) + break; + + out[3] = 0x80 | (code & 0x3F); code >>= 6; + out[2] = 0x80 | (code & 0x3F); code >>= 6; + out[1] = 0x80 | (code & 0x3F); code >>= 6; + out[0] = 0xF0 | code; + } + } + else + { + wxFAIL_MSG( wxT("trying to encode undefined Unicode character") ); + break; + } + + if ( out ) + { + out += len; + dstLen -= len; + } + + written += len; + } + + // we only get here if an error occurs during decoding + return wxCONV_FAILED; +} + +size_t wxMBConvUTF8::ToWChar(wchar_t *buf, size_t n, + const char *psz, size_t srcLen) const +{ + if ( m_options == MAP_INVALID_UTF8_NOT ) + return wxMBConvStrictUTF8::ToWChar(buf, n, psz, srcLen); + + size_t len = 0; + + // The length can be either given explicitly or computed implicitly for the + // NUL-terminated strings. + const bool isNulTerminated = srcLen == wxNO_LEN; + while ((isNulTerminated ? *psz : srcLen--) && ((!buf) || (len < n))) + { + const char *opsz = psz; + bool invalid = false; + unsigned char cc = *psz++, fc = cc; + unsigned cnt; + for (cnt = 0; fc & 0x80; cnt++) + fc <<= 1; + + if (!cnt) + { + // plain ASCII char + if (buf) + *buf++ = cc; + len++; + + // escape the escape character for octal escapes + if ((m_options & MAP_INVALID_UTF8_TO_OCTAL) + && cc == '\\' && (!buf || len < n)) + { + if (buf) + *buf++ = cc; + len++; + } + } + else + { + cnt--; + if (!cnt) + { + // invalid UTF-8 sequence + invalid = true; + } + else + { + unsigned ocnt = cnt - 1; + wxUint32 res = cc & (0x3f >> cnt); + while (cnt--) + { + cc = *psz; + if ((cc & 0xC0) != 0x80) + { + // invalid UTF-8 sequence + invalid = true; + break; + } + + psz++; + res = (res << 6) | (cc & 0x3f); } if (invalid || res <= utf8_max[ocnt]) @@ -791,7 +1301,7 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const else { #ifdef WC_UTF16 - // cast is ok because wchar_t == wxUuint16 if WC_UTF16 + // cast is ok because wchar_t == wxUint16 if WC_UTF16 size_t pa = encode_utf16(res, (wxUint16 *)buf); if (pa == wxCONV_FAILED) { @@ -858,8 +1368,15 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const } } - if (buf && (len < n)) - *buf = 0; + if ( isNulTerminated ) + { + // Add the trailing NUL in this case if we have a large enough buffer. + if ( buf && (len < n) ) + *buf = 0; + + // And count it in any case. + len++; + } return len; } @@ -869,11 +1386,18 @@ static inline bool isoctal(wchar_t wch) return L'0' <= wch && wch <= L'7'; } -size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const +size_t wxMBConvUTF8::FromWChar(char *buf, size_t n, + const wchar_t *psz, size_t srcLen) const { + if ( m_options == MAP_INVALID_UTF8_NOT ) + return wxMBConvStrictUTF8::FromWChar(buf, n, psz, srcLen); + size_t len = 0; - while (*psz && ((!buf) || (len < n))) + // The length can be either given explicitly or computed implicitly for the + // NUL-terminated strings. + const bool isNulTerminated = srcLen == wxNO_LEN; + while ((isNulTerminated ? *psz : srcLen--) && ((!buf) || (len < n))) { wxUint32 cc; @@ -941,8 +1465,15 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const } } - if (buf && (len < n)) - *buf = 0; + if ( isNulTerminated ) + { + // Add the trailing NUL in this case if we have a large enough buffer. + if ( buf && (len < n) ) + *buf = 0; + + // And count it in any case. + len++; + } return len; } @@ -965,7 +1496,7 @@ size_t wxMBConvUTF16Base::GetLength(const char *src, size_t srcLen) if ( srcLen == wxNO_LEN ) { // count the number of bytes in input, including the trailing NULs - const wxUint16 *inBuff = wx_reinterpret_cast(const wxUint16 *, src); + const wxUint16 *inBuff = reinterpret_cast(src); for ( srcLen = 1; *inBuff++; srcLen++ ) ; @@ -1049,7 +1580,7 @@ wxMBConvUTF16swap::ToWChar(wchar_t *dst, size_t dstLen, if ( dstLen < srcLen ) return wxCONV_FAILED; - const wxUint16 *inBuff = wx_reinterpret_cast(const wxUint16 *, src); + const wxUint16 *inBuff = reinterpret_cast(src); for ( size_t n = 0; n < srcLen; n++, inBuff++ ) { *dst++ = wxUINT16_SWAP_ALWAYS(*inBuff); @@ -1073,7 +1604,7 @@ wxMBConvUTF16swap::FromWChar(char *dst, size_t dstLen, if ( dstLen < srcLen ) return wxCONV_FAILED; - wxUint16 *outBuff = wx_reinterpret_cast(wxUint16 *, dst); + wxUint16 *outBuff = reinterpret_cast(dst); for ( size_t n = 0; n < srcLen; n += BYTES_PER_CHAR, src++ ) { *outBuff++ = wxUINT16_SWAP_ALWAYS(*src); @@ -1107,7 +1638,7 @@ wxMBConvUTF16straight::ToWChar(wchar_t *dst, size_t dstLen, } size_t outLen = 0; - const wxUint16 *inBuff = wx_reinterpret_cast(const wxUint16 *, src); + const wxUint16 *inBuff = reinterpret_cast(src); for ( const wxUint16 * const inEnd = inBuff + inLen; inBuff < inEnd; ) { const wxUint32 ch = wxDecodeSurrogate(&inBuff); @@ -1132,10 +1663,10 @@ wxMBConvUTF16straight::FromWChar(char *dst, size_t dstLen, srcLen = wxWcslen(src) + 1; size_t outLen = 0; - wxUint16 *outBuff = wx_reinterpret_cast(wxUint16 *, dst); + wxUint16 *outBuff = reinterpret_cast(dst); for ( size_t n = 0; n < srcLen; n++ ) { - wxUint16 cc[2]; + wxUint16 cc[2] = { 0 }; const size_t numChars = encode_utf16(*src++, cc); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; @@ -1180,7 +1711,7 @@ wxMBConvUTF16swap::ToWChar(wchar_t *dst, size_t dstLen, } size_t outLen = 0; - const wxUint16 *inBuff = wx_reinterpret_cast(const wxUint16 *, src); + const wxUint16 *inBuff = reinterpret_cast(src); for ( const wxUint16 * const inEnd = inBuff + inLen; inBuff < inEnd; ) { wxUint32 ch; @@ -1215,10 +1746,10 @@ wxMBConvUTF16swap::FromWChar(char *dst, size_t dstLen, srcLen = wxWcslen(src) + 1; size_t outLen = 0; - wxUint16 *outBuff = wx_reinterpret_cast(wxUint16 *, dst); + wxUint16 *outBuff = reinterpret_cast(dst); for ( const wchar_t *srcEnd = src + srcLen; src < srcEnd; src++ ) { - wxUint16 cc[2]; + wxUint16 cc[2] = { 0 }; const size_t numChars = encode_utf16(*src, cc); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; @@ -1266,7 +1797,7 @@ 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); + const wxUint32 *inBuff = reinterpret_cast(src); for ( srcLen = 1; *inBuff++; srcLen++ ) ; @@ -1297,12 +1828,12 @@ wxMBConvUTF32straight::ToWChar(wchar_t *dst, size_t dstLen, if ( srcLen == wxNO_LEN ) return wxCONV_FAILED; - const wxUint32 *inBuff = wx_reinterpret_cast(const wxUint32 *, src); + const wxUint32 *inBuff = reinterpret_cast(src); const size_t inLen = srcLen / BYTES_PER_CHAR; size_t outLen = 0; for ( size_t n = 0; n < inLen; n++ ) { - wxUint16 cc[2]; + wxUint16 cc[2] = { 0 }; const size_t numChars = encode_utf16(*inBuff++, cc); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; @@ -1344,7 +1875,7 @@ wxMBConvUTF32straight::FromWChar(char *dst, size_t dstLen, return srcLen * BYTES_PER_CHAR; } - wxUint32 *outBuff = wx_reinterpret_cast(wxUint32 *, dst); + wxUint32 *outBuff = reinterpret_cast(dst); size_t outLen = 0; for ( const wchar_t * const srcEnd = src + srcLen; src < srcEnd; ) { @@ -1375,12 +1906,12 @@ wxMBConvUTF32swap::ToWChar(wchar_t *dst, size_t dstLen, if ( srcLen == wxNO_LEN ) return wxCONV_FAILED; - const wxUint32 *inBuff = wx_reinterpret_cast(const wxUint32 *, src); + const wxUint32 *inBuff = reinterpret_cast(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]; + wxUint16 cc[2] = { 0 }; const size_t numChars = encode_utf16(wxUINT32_SWAP_ALWAYS(*inBuff), cc); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; @@ -1422,7 +1953,7 @@ wxMBConvUTF32swap::FromWChar(char *dst, size_t dstLen, return srcLen*BYTES_PER_CHAR; } - wxUint32 *outBuff = wx_reinterpret_cast(wxUint32 *, dst); + wxUint32 *outBuff = reinterpret_cast(dst); size_t outLen = 0; for ( const wchar_t * const srcEnd = src + srcLen; src < srcEnd; ) { @@ -1507,7 +2038,7 @@ wxMBConvUTF32swap::ToWChar(wchar_t *dst, size_t dstLen, if ( dstLen < srcLen ) return wxCONV_FAILED; - const wxUint32 *inBuff = wx_reinterpret_cast(const wxUint32 *, src); + const wxUint32 *inBuff = reinterpret_cast(src); for ( size_t n = 0; n < srcLen; n++, inBuff++ ) { *dst++ = wxUINT32_SWAP_ALWAYS(*inBuff); @@ -1531,7 +2062,7 @@ wxMBConvUTF32swap::FromWChar(char *dst, size_t dstLen, if ( dstLen < srcLen ) return wxCONV_FAILED; - wxUint32 *outBuff = wx_reinterpret_cast(wxUint32 *, dst); + wxUint32 *outBuff = reinterpret_cast(dst); for ( size_t n = 0; n < srcLen; n += BYTES_PER_CHAR, src++ ) { *outBuff++ = wxUINT32_SWAP_ALWAYS(*src); @@ -1587,15 +2118,20 @@ wxMBConvUTF32swap::FromWChar(char *dst, size_t dstLen, class wxMBConv_iconv : public wxMBConv { public: - wxMBConv_iconv(const wxChar *name); + wxMBConv_iconv(const char *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 + // implement base class virtual methods + virtual size_t ToWChar(wchar_t *dst, size_t dstLen, + const char *src, size_t srcLen = wxNO_LEN) const; + virtual size_t FromWChar(char *dst, size_t dstLen, + const wchar_t *src, size_t srcLen = wxNO_LEN) const; virtual size_t GetMBNulLen() const; +#if wxUSE_UNICODE_UTF8 + virtual bool IsUTF8() const; +#endif + virtual wxMBConv *Clone() const { wxMBConv_iconv *p = new wxMBConv_iconv(m_name); @@ -1628,7 +2164,7 @@ private: // name of the encoding handled by this conversion - wxString m_name; + const char *m_name; // cached result of GetMBNulLen(); set to 0 meaning "unknown" // initially @@ -1636,7 +2172,7 @@ private: }; // make the constructor available for unit testing -WXDLLIMPEXP_BASE wxMBConv* new_wxMBConv_iconv( const wxChar* name ) +WXDLLIMPEXP_BASE wxMBConv* new_wxMBConv_iconv( const char* name ) { wxMBConv_iconv* result = new wxMBConv_iconv( name ); if ( !result->IsOk() ) @@ -1651,32 +2187,29 @@ WXDLLIMPEXP_BASE wxMBConv* new_wxMBConv_iconv( const wxChar* name ) wxString wxMBConv_iconv::ms_wcCharsetName; bool wxMBConv_iconv::ms_wcNeedsSwap = false; -wxMBConv_iconv::wxMBConv_iconv(const wxChar *name) - : m_name(name) +wxMBConv_iconv::wxMBConv_iconv(const char *name) + : m_name(wxStrdup(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:")); + wxLogTrace(TRACE_STRCONV, wxT("Looking for wide char codeset:")); #if wxUSE_FONTMAP - const wxChar **names = wxFontMapperBase::GetAllEncodingNames(WC_ENC); + const wxChar *const *names = wxFontMapperBase::GetAllEncodingNames(WC_ENC); #else // !wxUSE_FONTMAP - static const wxChar *names[] = + static const wxChar *const names_static[] = { #if SIZEOF_WCHAR_T == 4 - _T("UCS-4"), -#elif SIZEOF_WCHAR_T = 2 - _T("UCS-2"), + wxT("UCS-4"), +#elif SIZEOF_WCHAR_T == 2 + wxT("UCS-2"), #endif NULL }; + const wxChar *const *names = names_static; #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP for ( ; *names && ms_wcCharsetName.empty(); ++names ) @@ -1687,27 +2220,27 @@ wxMBConv_iconv::wxMBConv_iconv(const wxChar *name) wxString nameXE(nameCS); #ifdef WORDS_BIGENDIAN - nameXE += _T("BE"); + nameXE += wxT("BE"); #else // little endian - nameXE += _T("LE"); + nameXE += wxT("LE"); #endif - wxLogTrace(TRACE_STRCONV, _T(" trying charset \"%s\""), + wxLogTrace(TRACE_STRCONV, wxT(" trying charset \"%s\""), nameXE.c_str()); - m2w = iconv_open(nameXE.ToAscii(), cname); + m2w = iconv_open(nameXE.ToAscii(), name); if ( m2w == ICONV_T_INVALID ) { // try charset w/o bytesex info (e.g. "UCS4") - wxLogTrace(TRACE_STRCONV, _T(" trying charset \"%s\""), + wxLogTrace(TRACE_STRCONV, wxT(" trying charset \"%s\""), nameCS.c_str()); - m2w = iconv_open(nameCS.ToAscii(), cname); + m2w = iconv_open(nameCS.ToAscii(), name); // and check for bytesex ourselves: if ( m2w != ICONV_T_INVALID ) { char buf[2], *bufPtr; - wchar_t wbuf[2], *wbufPtr; + wchar_t wbuf[2]; size_t insz, outsz; size_t res; @@ -1716,12 +2249,12 @@ wxMBConv_iconv::wxMBConv_iconv(const wxChar *name) wbuf[0] = 0; insz = 2; outsz = SIZEOF_WCHAR_T * 2; - wbufPtr = wbuf; + char* wbufPtr = (char*)wbuf; bufPtr = buf; res = iconv( m2w, ICONV_CHAR_CAST(&bufPtr), &insz, - (char**)&wbufPtr, &outsz); + &wbufPtr, &outsz); if (ICONV_FAILED(res, insz)) { @@ -1744,14 +2277,14 @@ wxMBConv_iconv::wxMBConv_iconv(const wxChar *name) 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("")); + ms_wcCharsetName.empty() ? wxString("") + : ms_wcCharsetName, + ms_wcNeedsSwap ? wxT(" (needs swap)") + : wxT("")); } else // we already have ms_wcCharsetName { - m2w = iconv_open(ms_wcCharsetName.ToAscii(), cname); + m2w = iconv_open(ms_wcCharsetName.ToAscii(), name); } if ( ms_wcCharsetName.empty() ) @@ -1760,51 +2293,67 @@ wxMBConv_iconv::wxMBConv_iconv(const wxChar *name) } else { - w2m = iconv_open(cname, ms_wcCharsetName.ToAscii()); + w2m = iconv_open(name, 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()); + ms_wcCharsetName.c_str(), name); } } } wxMBConv_iconv::~wxMBConv_iconv() { + free(const_cast(m_name)); + 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 +size_t +wxMBConv_iconv::ToWChar(wchar_t *dst, size_t dstLen, + const char *src, size_t srcLen) 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 ) + if ( srcLen == wxNO_LEN ) { - default: - return wxCONV_FAILED; + // find the string length: notice that must be done differently for + // NUL-terminated strings and UTF-16/32 which are terminated with 2/4 + // consecutive NULs + const size_t nulLen = GetMBNulLen(); + switch ( nulLen ) + { + default: + return wxCONV_FAILED; - case 1: - inbuf = strlen(psz); // arguably more optimized than our version - break; + case 1: + srcLen = strlen(src); // 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; + 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 = src; NotAllNULs(p, nulLen); p += nulLen ) + ; + srcLen = p - src; + break; + } + + // when we're determining the length of the string ourselves we count + // the terminating NUL(s) as part of it and always NUL-terminate the + // output + srcLen += nulLen; } + // we express length in the number of (wide) characters but iconv always + // counts buffer sizes it in bytes + dstLen *= SIZEOF_WCHAR_T; + #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 @@ -1815,53 +2364,51 @@ size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const 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; + const char *pszPtr = src; - if (buf) + if ( dst ) { + char* bufPtr = (char*)dst; + // have destination buffer, convert there + size_t dstLenOrig = dstLen; cres = iconv(m2w, - ICONV_CHAR_CAST(&pszPtr), &inbuf, - (char**)&bufPtr, &outbuf); - res = n - (outbuf / SIZEOF_WCHAR_T); + ICONV_CHAR_CAST(&pszPtr), &srcLen, + &bufPtr, &dstLen); + + // convert the number of bytes converted as returned by iconv to the + // number of (wide) characters converted that we need + res = (dstLenOrig - dstLen) / SIZEOF_WCHAR_T; if (ms_wcNeedsSwap) { // convert to native endianness for ( unsigned i = 0; i < res; i++ ) - buf[n] = WC_BSWAP(buf[i]); + dst[i] = WC_BSWAP(dst[i]); } - - // NUL-terminate the string if there is any space left - if (res < n) - buf[res] = 0; } - else + else // no destination buffer { - // no destination buffer... convert using temp buffer - // to calculate destination buffer requirement - wchar_t tbuf[8]; + // convert using temp buffer to calculate the size of the buffer needed + wchar_t tbuf[256]; res = 0; do { - bufPtr = tbuf; - outbuf = 8 * SIZEOF_WCHAR_T; + char* bufPtr = (char*)tbuf; + dstLen = 8 * SIZEOF_WCHAR_T; cres = iconv(m2w, - ICONV_CHAR_CAST(&pszPtr), &inbuf, - (char**)&bufPtr, &outbuf ); + ICONV_CHAR_CAST(&pszPtr), &srcLen, + &bufPtr, &dstLen ); - res += 8 - (outbuf / SIZEOF_WCHAR_T); + res += 8 - (dstLen / SIZEOF_WCHAR_T); } while ((cres == (size_t)-1) && (errno == E2BIG)); } - if (ICONV_FAILED(cres, inbuf)) + if (ICONV_FAILED(cres, srcLen)) { //VS: it is ok if iconv fails, hence trace only wxLogTrace(TRACE_STRCONV, wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode())); @@ -1871,16 +2418,19 @@ size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const return res; } -size_t wxMBConv_iconv::WC2MB(char *buf, const wchar_t *psz, size_t n) const +size_t wxMBConv_iconv::FromWChar(char *dst, size_t dstLen, + const wchar_t *src, size_t srcLen) 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; + if ( srcLen == wxNO_LEN ) + srcLen = wxWcslen(src) + 1; + + size_t inbuflen = srcLen * SIZEOF_WCHAR_T; + size_t outbuflen = dstLen; size_t res, cres; wchar_t *tmpbuf = 0; @@ -1888,43 +2438,36 @@ size_t wxMBConv_iconv::WC2MB(char *buf, const wchar_t *psz, size_t n) const 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 + // (doing WC_BSWAP twice on the original buffer won't work, 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 = (wchar_t *)malloc(inbuflen); + for ( size_t i = 0; i < srcLen; i++ ) + tmpbuf[i] = WC_BSWAP(src[i]); - tmpbuf[inlen] = L'\0'; - psz = tmpbuf; + src = tmpbuf; } - if (buf) + char* inbuf = (char*)src; + if ( dst ) { // have destination buffer, convert there - cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf ); - - res = n - outbuf; + cres = iconv(w2m, ICONV_CHAR_CAST(&inbuf), &inbuflen, &dst, &outbuflen); - // 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; + res = dstLen - outbuflen; } - else + else // no destination buffer { - // no destination buffer: convert using temp buffer - // to calculate destination buffer requirement - char tbuf[16]; + // convert using temp buffer to calculate the size of the buffer needed + char tbuf[256]; res = 0; do { - buf = tbuf; - outbuf = 16; + dst = tbuf; + outbuflen = WXSIZEOF(tbuf); - cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf ); + cres = iconv(w2m, ICONV_CHAR_CAST(&inbuf), &inbuflen, &dst, &outbuflen); - res += 16 - outbuf; + res += WXSIZEOF(tbuf) - outbuflen; } while ((cres == (size_t)-1) && (errno == E2BIG)); } @@ -1934,7 +2477,7 @@ size_t wxMBConv_iconv::WC2MB(char *buf, const wchar_t *psz, size_t n) const free(tmpbuf); } - if (ICONV_FAILED(cres, inbuf)) + if (ICONV_FAILED(cres, inbuflen)) { wxLogTrace(TRACE_STRCONV, wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode())); return wxCONV_FAILED; @@ -1954,7 +2497,7 @@ size_t wxMBConv_iconv::GetMBNulLen() const wxMutexLocker lock(self->m_iconvMutex); #endif - wchar_t *wnul = L""; + const wchar_t *wnul = L""; char buf[8]; // should be enough for NUL in any encoding size_t inLen = sizeof(wchar_t), outLen = WXSIZEOF(buf); @@ -1973,6 +2516,14 @@ size_t wxMBConv_iconv::GetMBNulLen() const return m_minMBCharWidth; } +#if wxUSE_UNICODE_UTF8 +bool wxMBConv_iconv::IsUTF8() const +{ + return wxStricmp(m_name, "UTF-8") == 0 || + wxStricmp(m_name, "UTF8") == 0; +} +#endif + #endif // HAVE_ICONV @@ -1984,7 +2535,7 @@ size_t wxMBConv_iconv::GetMBNulLen() const // from utils.cpp #if wxUSE_FONTMAP -extern WXDLLIMPEXP_BASE long wxCharsetToCodepage(const wxChar *charset); +extern WXDLLIMPEXP_BASE long wxCharsetToCodepage(const char *charset); extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding); #endif @@ -2005,7 +2556,7 @@ public: } #if wxUSE_FONTMAP - wxMBConv_win32(const wxChar* name) + wxMBConv_win32(const char* name) { m_CodePage = wxCharsetToCodepage(name); m_minMBCharWidth = 0; @@ -2033,12 +2584,12 @@ public: // http://msdn.microsoft.com/library/en-us/intl/unicode_17si.asp if ( m_CodePage == CP_UTF8 ) { - return wxConvUTF8.MB2WC(buf, psz, n); + return wxMBConvUTF8().MB2WC(buf, psz, n); } if ( m_CodePage == CP_UTF7 ) { - return wxConvUTF7.MB2WC(buf, psz, n); + return wxMBConvUTF7().MB2WC(buf, psz, n); } int flags = 0; @@ -2148,26 +2699,38 @@ public: return wxCONV_FAILED; } - // if we were really converting, check if we succeeded - if ( buf ) + // we did something, check if we really succeeded + if ( flags ) { - 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... + { + // first we need to ensure that we really have the MB data: this is + // not the case if we're called with NULL buffer, in which case we + // need to do the conversion yet again + wxCharBuffer bufDef; + if ( !buf ) { - // check if the conversion failed, i.e. if any replacements - // were done - if ( usedDef ) + bufDef = wxCharBuffer(len); + buf = bufDef.data(); + if ( !::WideCharToMultiByte(m_CodePage, flags, pwz, -1, + buf, len, NULL, NULL) ) return wxCONV_FAILED; } - else // we must resort to double tripping... + + if ( !n ) + n = wcslen(pwz); + wxWCharBuffer wcBuf(n); + if ( MB2WC(wcBuf.data(), buf, n + 1) == wxCONV_FAILED || + wcscmp(wcBuf, pwz) != 0 ) { - 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; - } + // we didn't obtain the same thing we started from, hence + // the conversion was lossy and we consider that it failed + return wxCONV_FAILED; } } @@ -2195,7 +2758,7 @@ public: switch ( len ) { default: - wxLogDebug(_T("Unexpected NUL length %d"), len); + wxLogDebug(wxT("Unexpected NUL length %d"), len); self->m_minMBCharWidth = (size_t)-1; break; @@ -2228,11 +2791,11 @@ private: int verMaj, verMin; switch ( wxGetOsVersion(&verMaj, &verMin) ) { - case wxWIN95: + case wxOS_WINDOWS_9X: s_isWin98Or2k = verMaj >= 4 && verMin >= 10; break; - case wxWINDOWS_NT: + case wxOS_WINDOWS_NT: s_isWin98Or2k = verMaj >= 5; break; @@ -2242,7 +2805,7 @@ private: break; } - wxASSERT_MSG( s_isWin98Or2k != -1, _T("should be set above") ); + wxASSERT_MSG( s_isWin98Or2k != -1, wxT("should be set above") ); } return s_isWin98Or2k == 1; @@ -2286,719 +2849,6 @@ private: #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) ); - } - - ~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) ); - } - - ~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; - } - - ~wxMBConv_macUTF8D() - { - DisposeUnicodeToTextInfo(&m_uni); - } - - 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 - } - - return res ; - } - - virtual void CreateIfNeeded() const - { - wxMBConv_mac::CreateIfNeeded() ; - if ( m_uni == NULL ) - { - m_map.unicodeEncoding = CreateTextEncoding(kTextEncodingUnicodeDefault, - kUnicodeNoSubset, kTextEncodingDefaultFormat); - m_map.otherEncoding = CreateTextEncoding(kTextEncodingUnicodeDefault, - kUnicodeCanonicalDecompVariant, kTextEncodingDefaultFormat); - m_map.mappingVersion = kUnicodeUseLatestMapping; - - OSStatus err = CreateUnicodeToTextInfo(&m_map, &m_uni); - wxASSERT_MSG( err == noErr , _(" Couldn't create the UnicodeConverter")) ; - } - } -protected : - mutable UnicodeToTextInfo m_uni; - mutable UnicodeMapping m_map; -}; -#endif // defined(__WXMAC__) && defined(TARGET_CARBON) // ============================================================================ // wxEncodingConverter based conversion classes @@ -3011,14 +2861,17 @@ class wxMBConv_wxwin : public wxMBConv private: void Init() { - m_ok = m2w.Init(m_enc, wxFONTENCODING_UNICODE) && + // Refuse to use broken wxEncodingConverter code for Mac-specific encodings. + // The wxMBConv_cf class does a better job. + m_ok = (m_enc < wxFONTENCODING_MACMIN || m_enc > wxFONTENCODING_MACMAX) && + m2w.Init(m_enc, wxFONTENCODING_UNICODE) && w2m.Init(wxFONTENCODING_UNICODE, m_enc); } public: // temporarily just use wxEncodingConverter stuff, // so that it works while a better implementation is built - wxMBConv_wxwin(const wxChar* name) + wxMBConv_wxwin(const char* name) { if (name) m_enc = wxFontMapperBase::Get()->CharsetToEncoding(name, false); @@ -3087,11 +2940,11 @@ private: // were we initialized successfully? bool m_ok; - DECLARE_NO_COPY_CLASS(wxMBConv_wxwin) + wxDECLARE_NO_COPY_CLASS(wxMBConv_wxwin); }; // make the constructors available for unit testing -WXDLLIMPEXP_BASE wxMBConv* new_wxMBConv_wxwin( const wxChar* name ) +WXDLLIMPEXP_BASE wxMBConv* new_wxMBConv_wxwin( const char* name ) { wxMBConv_wxwin* result = new wxMBConv_wxwin( name ); if ( !result->IsOk() ) @@ -3113,37 +2966,75 @@ void wxCSConv::Init() { m_name = NULL; m_convReal = NULL; - m_deferred = true; } -wxCSConv::wxCSConv(const wxChar *charset) +void wxCSConv::SetEncoding(wxFontEncoding encoding) +{ + switch ( encoding ) + { + case wxFONTENCODING_MAX: + case wxFONTENCODING_SYSTEM: + if ( m_name ) + { + // It's ok to not have encoding value if we have a name for it. + m_encoding = wxFONTENCODING_SYSTEM; + } + else // No name neither. + { + // Fall back to the system default encoding in this case (not + // sure how much sense does this make but this is how the old + // code used to behave). +#if wxUSE_INTL + m_encoding = wxLocale::GetSystemEncoding(); + if ( m_encoding == wxFONTENCODING_SYSTEM ) +#endif // wxUSE_INTL + m_encoding = wxFONTENCODING_ISO8859_1; + } + break; + + case wxFONTENCODING_DEFAULT: + // wxFONTENCODING_DEFAULT is same as US-ASCII in this context + m_encoding = wxFONTENCODING_ISO8859_1; + break; + + default: + // Just use the provided encoding. + m_encoding = encoding; + } +} + +wxCSConv::wxCSConv(const wxString& charset) { Init(); - if ( charset ) + if ( !charset.empty() ) { - SetName(charset); + SetName(charset.ToAscii()); } #if wxUSE_FONTMAP - m_encoding = wxFontMapperBase::GetEncodingFromName(charset); + SetEncoding(wxFontMapperBase::GetEncodingFromName(charset)); #else - m_encoding = wxFONTENCODING_SYSTEM; + SetEncoding(wxFONTENCODING_SYSTEM); #endif + + m_convReal = DoCreate(); } wxCSConv::wxCSConv(wxFontEncoding encoding) { if ( encoding == wxFONTENCODING_MAX || encoding == wxFONTENCODING_DEFAULT ) { - wxFAIL_MSG( _T("invalid encoding value in wxCSConv ctor") ); + wxFAIL_MSG( wxT("invalid encoding value in wxCSConv ctor") ); encoding = wxFONTENCODING_SYSTEM; } Init(); - m_encoding = encoding; + SetEncoding(encoding); + + m_convReal = DoCreate(); } wxCSConv::~wxCSConv() @@ -3157,7 +3048,9 @@ wxCSConv::wxCSConv(const wxCSConv& conv) Init(); SetName(conv.m_name); - m_encoding = conv.m_encoding; + SetEncoding(conv.m_encoding); + + m_convReal = DoCreate(); } wxCSConv& wxCSConv::operator=(const wxCSConv& conv) @@ -3165,7 +3058,9 @@ wxCSConv& wxCSConv::operator=(const wxCSConv& conv) Clear(); SetName(conv.m_name); - m_encoding = conv.m_encoding; + SetEncoding(conv.m_encoding); + + m_convReal = DoCreate(); return *this; } @@ -3173,19 +3068,15 @@ wxCSConv& wxCSConv::operator=(const wxCSConv& conv) void wxCSConv::Clear() { free(m_name); - delete m_convReal; - m_name = NULL; - m_convReal = NULL; + + wxDELETE(m_convReal); } -void wxCSConv::SetName(const wxChar *charset) +void wxCSConv::SetName(const char *charset) { - if (charset) - { + if ( charset ) m_name = wxStrdup(charset); - m_deferred = true; - } } #if wxUSE_FONTMAP @@ -3202,14 +3093,13 @@ wxMBConv *wxCSConv::DoCreate() const wxLogTrace(TRACE_STRCONV, wxT("creating conversion for %s"), (m_name ? m_name - : wxFontMapperBase::GetEncodingName(m_encoding).c_str())); + : (const char*)wxFontMapperBase::GetEncodingName(m_encoding).mb_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 ) + if ( m_encoding == wxFONTENCODING_ISO8859_1 ) { // don't convert at all return NULL; @@ -3229,12 +3119,13 @@ wxMBConv *wxCSConv::DoCreate() const if ( m_name ) #endif // !wxUSE_FONTMAP { - wxString name(m_name); +#if wxUSE_FONTMAP wxFontEncoding encoding(m_encoding); +#endif - if ( !name.empty() ) + if ( m_name ) { - wxMBConv_iconv *conv = new wxMBConv_iconv(name); + wxMBConv_iconv *conv = new wxMBConv_iconv(m_name); if ( conv->IsOk() ) return conv; @@ -3242,7 +3133,7 @@ wxMBConv *wxCSConv::DoCreate() const #if wxUSE_FONTMAP encoding = - wxFontMapperBase::Get()->CharsetToEncoding(name, false); + wxFontMapperBase::Get()->CharsetToEncoding(m_name, false); #endif // wxUSE_FONTMAP } #if wxUSE_FONTMAP @@ -3253,28 +3144,38 @@ wxMBConv *wxCSConv::DoCreate() const if ( it->second.empty() ) return NULL; - wxMBConv_iconv *conv = new wxMBConv_iconv(it->second); + wxMBConv_iconv *conv = new wxMBConv_iconv(it->second.ToAscii()); if ( conv->IsOk() ) return conv; delete conv; } - const wxChar** names = wxFontMapperBase::GetAllEncodingNames(encoding); - - for ( ; *names; ++names ) + const wxChar* const* 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 ) { - wxMBConv_iconv *conv = new wxMBConv_iconv(*names); - if ( conv->IsOk() ) + for ( ; *names; ++names ) { - gs_nameCache[encoding] = *names; - return conv; + // FIXME-UTF8: wxFontMapperBase::GetAllEncodingNames() + // will need changes that will obsolete this + wxString name(*names); + wxMBConv_iconv *conv = new wxMBConv_iconv(name.ToAscii()); + if ( conv->IsOk() ) + { + gs_nameCache[encoding] = *names; + return conv; + } + + delete conv; } - delete conv; + gs_nameCache[encoding] = wxT(""); // cache the failure } - - gs_nameCache[encoding] = _T(""); // cache the failure } #endif // wxUSE_FONTMAP } @@ -3295,35 +3196,17 @@ wxMBConv *wxCSConv::DoCreate() const } #endif // wxHAVE_WIN32_MB2WC -#if defined(__WXMAC__) +#ifdef __DARWIN__ { // 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); + wxMBConv_cf *conv = m_name ? new wxMBConv_cf(m_name) + : new wxMBConv_cf(m_encoding); #else - wxMBConv_cocoa *conv = new wxMBConv_cocoa(m_encoding); + wxMBConv_cf *conv = new wxMBConv_cf(m_encoding); #endif if ( conv->IsOk() ) @@ -3332,7 +3215,8 @@ wxMBConv *wxCSConv::DoCreate() const delete conv; } } -#endif +#endif // __DARWIN__ + // step (2) wxFontEncoding enc = m_encoding; #if wxUSE_FONTMAP @@ -3380,156 +3264,206 @@ wxMBConv *wxCSConv::DoCreate() const 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 %s"), m_encoding).c_str() -#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP - ); - alreadyLoggingError = false; - } + wxLogTrace(TRACE_STRCONV, + wxT("encoding \"%s\" is not supported by this system"), + (m_name ? wxString(m_name) + : wxFontMapperBase::GetEncodingName(m_encoding))); +#endif // wxUSE_FONTMAP return NULL; } -void wxCSConv::CreateConvIfNeeded() const +bool wxCSConv::IsOk() const { - if ( m_deferred ) - { - wxCSConv *self = (wxCSConv *)this; // const_cast + // special case: no convReal created for wxFONTENCODING_ISO8859_1 + if ( m_encoding == wxFONTENCODING_ISO8859_1 ) + return true; // always ok as we do it ourselves -#if wxUSE_INTL - // 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 ) - { - self->m_name = wxStrdup(wxLocale::GetSystemEncodingName()); - } -#endif // wxUSE_INTL - - self->m_convReal = DoCreate(); - self->m_deferred = false; - } + // m_convReal->IsOk() is called at its own creation, so we know it must + // be ok if m_convReal is non-NULL + return m_convReal != NULL; } -size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const +size_t wxCSConv::ToWChar(wchar_t *dst, size_t dstLen, + const char *src, size_t srcLen) const { - CreateConvIfNeeded(); - if (m_convReal) - return m_convReal->MB2WC(buf, psz, n); + return m_convReal->ToWChar(dst, dstLen, src, srcLen); // latin-1 (direct) - size_t len = strlen(psz); + if ( srcLen == wxNO_LEN ) + srcLen = strlen(src) + 1; // take trailing NUL too - if (buf) + if ( dst ) { - for (size_t c = 0; c <= len; c++) - buf[c] = (unsigned char)(psz[c]); + if ( dstLen < srcLen ) + return wxCONV_FAILED; + + for ( size_t n = 0; n < srcLen; n++ ) + dst[n] = (unsigned char)(src[n]); } - return len; + return srcLen; } -size_t wxCSConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const +size_t wxCSConv::FromWChar(char *dst, size_t dstLen, + const wchar_t *src, size_t srcLen) const { - CreateConvIfNeeded(); - if (m_convReal) - return m_convReal->WC2MB(buf, psz, n); + return m_convReal->FromWChar(dst, dstLen, src, srcLen); // latin-1 (direct) - const size_t len = wxWcslen(psz); - if (buf) + if ( srcLen == wxNO_LEN ) + srcLen = wxWcslen(src) + 1; + + if ( dst ) { - for (size_t c = 0; c <= len; c++) + if ( dstLen < srcLen ) + return wxCONV_FAILED; + + for ( size_t n = 0; n < srcLen; n++ ) { - if (psz[c] > 0xFF) + if ( src[n] > 0xFF ) return wxCONV_FAILED; - buf[c] = (char)psz[c]; + dst[n] = (char)src[n]; } + } - else + else // still need to check the input validity { - for (size_t c = 0; c <= len; c++) + for ( size_t n = 0; n < srcLen; n++ ) { - if (psz[c] > 0xFF) + if ( src[n] > 0xFF ) return wxCONV_FAILED; } } - return len; + return srcLen; } size_t wxCSConv::GetMBNulLen() const { - CreateConvIfNeeded(); - if ( m_convReal ) - { return m_convReal->GetMBNulLen(); - } + // otherwise, we are ISO-8859-1 return 1; } +#if wxUSE_UNICODE_UTF8 +bool wxCSConv::IsUTF8() const +{ + if ( m_convReal ) + return m_convReal->IsUTF8(); + + // otherwise, we are ISO-8859-1 + return false; +} +#endif + + +#if wxUSE_UNICODE + +wxWCharBuffer wxSafeConvertMB2WX(const char *s) +{ + if ( !s ) + return wxWCharBuffer(); + + wxWCharBuffer wbuf(wxConvLibc.cMB2WX(s)); + if ( !wbuf ) + wbuf = wxMBConvUTF8().cMB2WX(s); + if ( !wbuf ) + wbuf = wxConvISO8859_1.cMB2WX(s); + + return wbuf; +} + +wxCharBuffer wxSafeConvertWX2MB(const wchar_t *ws) +{ + if ( !ws ) + return wxCharBuffer(); + + wxCharBuffer buf(wxConvLibc.cWX2MB(ws)); + if ( !buf ) + buf = wxMBConvUTF8(wxMBConvUTF8::MAP_INVALID_UTF8_TO_OCTAL).cWX2MB(ws); + + return buf; +} + +#endif // wxUSE_UNICODE + // ---------------------------------------------------------------------------- // globals // ---------------------------------------------------------------------------- +// NB: The reason why we create converted objects in this convoluted way, +// using a factory function instead of global variable, is that they +// may be used at static initialization time (some of them are used by +// wxString ctors and there may be a global wxString object). In other +// words, possibly _before_ the converter global object would be +// initialized. + +#undef wxConvLibc +#undef wxConvUTF8 +#undef wxConvUTF7 +#undef wxConvLocal +#undef wxConvISO8859_1 + +#define WX_DEFINE_GLOBAL_CONV2(klass, impl_klass, name, ctor_args) \ + WXDLLIMPEXP_DATA_BASE(klass*) name##Ptr = NULL; \ + WXDLLIMPEXP_BASE klass* wxGet_##name##Ptr() \ + { \ + static impl_klass name##Obj ctor_args; \ + return &name##Obj; \ + } \ + /* this ensures that all global converter objects are created */ \ + /* by the time static initialization is done, i.e. before any */ \ + /* thread is launched: */ \ + static klass* gs_##name##instance = wxGet_##name##Ptr() + +#define WX_DEFINE_GLOBAL_CONV(klass, name, ctor_args) \ + WX_DEFINE_GLOBAL_CONV2(klass, klass, name, ctor_args) + +#ifdef __INTELC__ + // disable warning "variable 'xxx' was declared but never referenced" + #pragma warning(disable: 177) +#endif // Intel C++ + #ifdef __WINDOWS__ - static wxMBConv_win32 wxConvLibcObj; -#elif defined(__WXMAC__) && !defined(__MACH__) - static wxMBConv_mac wxConvLibcObj ; + WX_DEFINE_GLOBAL_CONV2(wxMBConv, wxMBConv_win32, wxConvLibc, wxEMPTY_PARAMETER_VALUE); +#elif 0 // defined(__WXOSX__) + WX_DEFINE_GLOBAL_CONV2(wxMBConv, wxMBConv_cf, wxConvLibc, (wxFONTENCODING_UTF8)); #else - static wxMBConvLibc wxConvLibcObj; + WX_DEFINE_GLOBAL_CONV2(wxMBConv, wxMBConvLibc, wxConvLibc, wxEMPTY_PARAMETER_VALUE); #endif -static wxCSConv wxConvLocalObj(wxFONTENCODING_SYSTEM); -static wxCSConv wxConvISO8859_1Obj(wxFONTENCODING_ISO8859_1); -static wxMBConvUTF7 wxConvUTF7Obj; -static wxMBConvUTF8 wxConvUTF8Obj; -#ifdef __WXOSX__ -static wxMBConv_macUTF8D wxConvMacUTF8DObj; +// NB: we can't use wxEMPTY_PARAMETER_VALUE as final argument here because it's +// passed to WX_DEFINE_GLOBAL_CONV2 after a macro expansion and so still +// provokes an error message about "not enough macro parameters"; and we +// can't use "()" here as the name##Obj declaration would be parsed as a +// function declaration then, so use a semicolon and live with an extra +// empty statement (and hope that no compilers warns about this) +WX_DEFINE_GLOBAL_CONV(wxMBConvStrictUTF8, wxConvUTF8, ;); +WX_DEFINE_GLOBAL_CONV(wxMBConvUTF7, wxConvUTF7, ;); + +WX_DEFINE_GLOBAL_CONV(wxCSConv, wxConvLocal, (wxFONTENCODING_SYSTEM)); +WX_DEFINE_GLOBAL_CONV(wxCSConv, wxConvISO8859_1, (wxFONTENCODING_ISO8859_1)); + +WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent = wxGet_wxConvLibcPtr(); +WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvUI = wxGet_wxConvLocalPtr(); + +#ifdef __DARWIN__ +// It is important to use this conversion object under Darwin as it ensures +// that Unicode strings are (re)composed correctly even though xnu kernel uses +// decomposed form internally (at least for the file names). +static wxMBConv_cf wxConvMacUTF8DObj(wxFONTENCODING_UTF8); #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__ - wxConvMacUTF8DObj; -#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 +WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvFileName = +#ifdef __DARWIN__ + &wxConvMacUTF8DObj; +#else // !__DARWIN__ + wxGet_wxConvLibcPtr(); +#endif // __DARWIN__/!__DARWIN__