X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/22886fb3c34356d015591846f343344733a03149..36b4d42311ff353abd5466963dc0b50a5ebe350c:/src/common/strconv.cpp diff --git a/src/common/strconv.cpp b/src/common/strconv.cpp index f52144b275..3f00282a39 100644 --- a/src/common/strconv.cpp +++ b/src/common/strconv.cpp @@ -12,25 +12,13 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -// ============================================================================ -// declarations -// ============================================================================ - -// ---------------------------------------------------------------------------- -// headers -// ---------------------------------------------------------------------------- - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" -#ifdef __BORLANDC__ - #pragma hdrstop -#endif - #ifndef WX_PRECOMP #include "wx/intl.h" #include "wx/log.h" -#endif // WX_PRECOMP +#endif #include "wx/strconv.h" @@ -51,7 +39,7 @@ #if defined(__WIN32__) && !defined(__WXMICROWIN__) #define wxHAVE_WIN32_MB2WC -#endif // __WIN32__ but !__WXMICROWIN__ +#endif #ifdef __SALFORDC__ #include @@ -73,58 +61,73 @@ #include #endif -#include "wx/mac/private.h" // includes mac headers +// includes Mac headers +#include "wx/mac/private.h" #endif + #define TRACE_STRCONV _T("strconv") +// WC_UTF16 is defined only if sizeof(wchar_t) == 2, otherwise it's supposed to +// be 4 bytes #if SIZEOF_WCHAR_T == 2 #define WC_UTF16 #endif + // ============================================================================ // implementation // ============================================================================ +// helper function of cMB2WC(): check if n bytes at this location are all NUL +static bool NotAllNULs(const char *p, size_t n) +{ + while ( n && *p++ == '\0' ) + n--; + + return n != 0; +} + // ---------------------------------------------------------------------------- -// UTF-16 en/decoding to/from UCS-4 +// UTF-16 en/decoding to/from UCS-4 with surrogates handling // ---------------------------------------------------------------------------- - static size_t encode_utf16(wxUint32 input, wxUint16 *output) { - if (input<=0xffff) + if (input <= 0xffff) { if (output) *output = (wxUint16) input; + return 1; } - else if (input>=0x110000) + else if (input >= 0x110000) { - return (size_t)-1; + return wxCONV_FAILED; } else { if (output) { - *output++ = (wxUint16) ((input >> 10)+0xd7c0); - *output = (wxUint16) ((input&0x3ff)+0xdc00); + *output++ = (wxUint16) ((input >> 10) + 0xd7c0); + *output = (wxUint16) ((input & 0x3ff) + 0xdc00); } + return 2; } } static size_t decode_utf16(const wxUint16* input, wxUint32& output) { - if ((*input<0xd800) || (*input>0xdfff)) + 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 { @@ -133,146 +136,283 @@ static size_t decode_utf16(const wxUint16* input, wxUint32& output) } } +#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 // ---------------------------------------------------------------------------- -wxMBConv::~wxMBConv() -{ - // nothing to do here (necessary for Darwin linking probably) -} - -const wxWCharBuffer wxMBConv::cMB2WC(const char *psz) const +size_t +wxMBConv::ToWChar(wchar_t *dst, size_t dstLen, + const char *src, size_t srcLen) const { - if ( psz ) + // 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 wxDUMMY_INITIALIZE(0); + + // 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 ) { - // calculate the length of the buffer needed first - size_t nLen = MB2WC(NULL, psz, 0); - if ( nLen != (size_t)-1 ) + // we need to know how to find the end of this string + nulLen = GetMBNulLen(); + if ( nulLen == wxCONV_FAILED ) + return wxCONV_FAILED; + + // if there are enough NULs we can avoid the copy + if ( srcLen < nulLen || NotAllNULs(src + srcLen - nulLen, nulLen) ) { - // now do the actual conversion - wxWCharBuffer buf(nLen); - nLen = MB2WC(buf.data(), psz, nLen + 1); // with the trailing NULL - if ( nLen != (size_t)-1 ) - { - return buf; - } + // make a copy in order to properly NUL-terminate the string + bufTmp = wxCharBuffer(srcLen + nulLen - 1 /* 1 will be added */); + char * const p = bufTmp.data(); + memcpy(p, src, srcLen); + for ( char *s = p + srcLen; s < p + srcLen + nulLen; s++ ) + *s = '\0'; + + src = bufTmp; } + + srcEnd = src + srcLen; } + else // quit after the first loop iteration + { + srcEnd = NULL; + } + + for ( ;; ) + { + // try to convert the current chunk + size_t lenChunk = MB2WC(NULL, src, 0); + if ( lenChunk == wxCONV_FAILED ) + return wxCONV_FAILED; + + lenChunk++; // for the L'\0' at the end of this chunk + + dstWritten += lenChunk; + + if ( lenChunk == 1 ) + { + // nothing left in the input string, conversion succeeded + break; + } + + if ( dst ) + { + if ( dstWritten > dstLen ) + return wxCONV_FAILED; + + if ( MB2WC(dst, src, lenChunk) == wxCONV_FAILED ) + return wxCONV_FAILED; + + dst += lenChunk; + } + + if ( !srcEnd ) + { + // we convert just one chunk in this case as this is the entire + // string anyhow + break; + } - wxWCharBuffer buf((wchar_t *)NULL); + // 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; + } - return buf; + 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 *pwz) const +size_t +wxMBConv::FromWChar(char *dst, size_t dstLen, + const wchar_t *src, size_t srcLen) const { - if ( pwz ) + // the number of chars [which would be] written to dst [if it were not NULL] + size_t dstWritten = 0; + + // make a copy of the input string unless it is already properly + // NUL-terminated + // + // if we don't know its length we have no choice but to assume that it is, + // indeed, properly terminated + wxWCharBuffer bufTmp; + if ( srcLen == wxNO_LEN ) + { + srcLen = wxWcslen(src) + 1; + } + else if ( srcLen != 0 && src[srcLen - 1] != L'\0' ) { - size_t nLen = WC2MB(NULL, pwz, 0); - if ( nLen != (size_t)-1 ) + // make a copy in order to properly NUL-terminate the string + bufTmp = wxWCharBuffer(srcLen); + memcpy(bufTmp.data(), src, srcLen * sizeof(wchar_t)); + src = bufTmp; + } + + const size_t lenNul = GetMBNulLen(); + for ( const wchar_t * const srcEnd = src + srcLen; + src < srcEnd; + src += wxWcslen(src) + 1 /* skip L'\0' too */ ) + { + // try to convert the current chunk + size_t lenChunk = WC2MB(NULL, src, 0); + + if ( lenChunk == wxCONV_FAILED ) + return wxCONV_FAILED; + + lenChunk += lenNul; + dstWritten += lenChunk; + + if ( dst ) { - wxCharBuffer buf(nLen+3); // space for a wxUint32 trailing zero - nLen = WC2MB(buf.data(), pwz, nLen + 4); - if ( nLen != (size_t)-1 ) - { - return buf; - } + if ( dstWritten > dstLen ) + return wxCONV_FAILED; + + if ( WC2MB(dst, src, lenChunk) == wxCONV_FAILED ) + return wxCONV_FAILED; + + dst += lenChunk; } } - wxCharBuffer buf((char *)NULL); - - return buf; + return dstWritten; } -const wxWCharBuffer -wxMBConv::cMB2WC(const char *in, size_t inLen, size_t *outLen) const +size_t wxMBConv::MB2WC(wchar_t *outBuff, const char *inBuff, size_t outLen) const { - // the currently accumulated wide characters - wxWCharBuffer wbuf; + 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--; + } - // the current length of wbuf - size_t lenBuf = 0; + return rc; +} - // we need to know the representation of L'\0' for this conversion - size_t nulLen; - const char * const nul = GetMBNul(&nulLen); - if ( nulLen == (size_t)-1 || nulLen == 0 ) - return wxWCharBuffer(); +size_t wxMBConv::WC2MB(char *outBuff, const wchar_t *inBuff, size_t outLen) const +{ + size_t rc = FromWChar(outBuff, outLen, inBuff); + if ( rc != wxCONV_FAILED ) + { + rc -= GetMBNulLen(); + } - // make a copy of the input string unless it is already properly - // NUL-terminated - wxCharBuffer bufTmp; + return rc; +} + +wxMBConv::~wxMBConv() +{ + // nothing to do here (necessary for Darwin linking probably) +} - // now we can compute the input size if we were not given it: notice that - // in this case the string must be properly NUL-terminated, of course, as - // otherwise we have no way of knowing how long it is - if ( inLen == (size_t)-1 ) +const wxWCharBuffer wxMBConv::cMB2WC(const char *psz) const +{ + if ( psz ) { - // not the most efficient algorithm but it shouldn't matter as normally - // there are not many NULs in the string and so normally memcmp() - // should stop on the first character - const char *p = in; - while ( memcmp(p, nul, nulLen) != 0 ) - p++; + // 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 */); - inLen = p - in + nulLen; + // +1 for the trailing NULL + if ( MB2WC(buf.data(), psz, nLen + 1) != wxCONV_FAILED ) + return buf; + } } - else // we already have the size + + return wxWCharBuffer(); +} + +const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *pwz) const +{ + if ( pwz ) { - // check if it's not already NUL-terminated too to avoid the copy - if ( inLen < nulLen || memcmp(in + inLen - nulLen, nul, nulLen) != 0 ) + const size_t nLen = WC2MB(NULL, pwz, 0); + if ( nLen != wxCONV_FAILED ) { - // make a copy in order to properly NUL-terminate the string - bufTmp = wxCharBuffer(inLen + nulLen - 1 /* 1 will be added */); - memcpy(bufTmp.data(), in, inLen); - memcpy(bufTmp.data() + inLen, nul, nulLen); + // 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; } } - if ( bufTmp ) - in = bufTmp; + return wxCharBuffer(); +} - for ( const char * const inEnd = in + inLen;; ) +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 ) { - // try to convert the current chunk if anything left - size_t lenChunk = in < inEnd ? MB2WC(NULL, in, 0) : 0; - if ( lenChunk == 0 ) + wxWCharBuffer wbuf(dstLen - 1); + if ( ToWChar(wbuf.data(), dstLen, inBuff, inLen) != wxCONV_FAILED ) { - // nothing left in the input string, conversion succeeded if ( outLen ) { - // we shouldn't include the last NUL in the result length - *outLen = lenBuf ? lenBuf - 1 : 0; + *outLen = dstLen; + if ( wbuf[dstLen - 1] == L'\0' ) + (*outLen)--; } return wbuf; } - - if ( lenChunk == (size_t)-1 ) - break; - - const size_t lenBufNew = lenBuf + lenChunk; - if ( !wbuf.extend(lenBufNew) ) - break; - - lenChunk = MB2WC(wbuf.data() + lenBuf, in, lenChunk + 1 /* for NUL */); - if ( lenChunk == (size_t)-1 ) - break; - - // +! for the embedded NUL (if something follows) - lenBuf = lenBufNew + 1; - - // advance the input pointer past the end of this chunk - while ( memcmp(in, nul, nulLen) != 0 ) - in++; - - in += nulLen; // skipping over its terminator as well } - // conversion failed if ( outLen ) *outLen = 0; @@ -280,64 +420,31 @@ wxMBConv::cMB2WC(const char *in, size_t inLen, size_t *outLen) const } const wxCharBuffer -wxMBConv::cWC2MB(const wchar_t *in, size_t inLen, size_t *outLen) const +wxMBConv::cWC2MB(const wchar_t *inBuff, size_t inLen, size_t *outLen) const { - // the currently accumulated multibyte characters - wxCharBuffer buf; - - // the current length of buf - size_t lenBuf = 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 ( inLen == (size_t)-1 ) - { - inLen = wxWcslen(in) + 1; - } - else if ( inLen != 0 && in[inLen - 1] != L'\0' ) + const size_t dstLen = FromWChar(NULL, 0, inBuff, inLen); + if ( dstLen != wxCONV_FAILED ) { - // make a copy in order to properly NUL-terminate the string - bufTmp = wxWCharBuffer(inLen); - memcpy(bufTmp.data(), in, inLen*sizeof(wchar_t)); - } - - if ( bufTmp ) - in = bufTmp; - - for ( const wchar_t * const inEnd = in + inLen;; ) - { - // try to convert the current chunk, if anything left - size_t lenChunk = in < inEnd ? WC2MB(NULL, in, 0) : 0; - if ( lenChunk == 0 ) + wxCharBuffer buf(dstLen - 1); + if ( FromWChar(buf.data(), dstLen, inBuff, inLen) != wxCONV_FAILED ) { - // nothing left in the input string, conversion succeeded if ( outLen ) - *outLen = lenBuf ? lenBuf - 1 : lenBuf; + { + *outLen = dstLen; + + const size_t nulLen = GetMBNulLen(); + if ( !NotAllNULs(buf.data() + dstLen - nulLen, nulLen) ) + { + // in this case the output is NUL-terminated and we're not + // supposed to count NUL + (*outLen) -= nulLen; + } + } return buf; } - - if ( lenChunk == (size_t)-1 ) - break; - - const size_t lenBufNew = lenBuf + lenChunk; - if ( !buf.extend(lenBufNew) ) - break; - - lenChunk = WC2MB(buf.data() + lenBuf, in, lenChunk + 1 /* for NUL */); - if ( lenChunk == (size_t)-1 ) - break; - - // chunk successfully converted, go to the next one - in += wxWcslen(in) + 1 /* skip NUL too */; - lenBuf = lenBufNew + 1; } - // conversion failed if ( outLen ) *outLen = 0; @@ -474,7 +581,7 @@ size_t wxMBConvUTF7::MB2WC(wchar_t *buf, const char *psz, size_t n) const if ( !ok ) { // in valid UTF7 we should have valid characters after '+' - return (size_t)-1; + return wxCONV_FAILED; } if (*psz == '-') @@ -535,19 +642,21 @@ size_t wxMBConvUTF7::WC2MB(char *buf, const wchar_t *psz, size_t n) const // plain ASCII char if (buf) *buf++ = (char)cc; + len++; } #ifndef WC_UTF16 else if (((wxUint32)cc) > 0xffff) { // no surrogate pair generation (yet?) - return (size_t)-1; + return wxCONV_FAILED; } #endif else { if (buf) *buf++ = '+'; + len++; if (cc != '+') { @@ -568,24 +677,30 @@ size_t wxMBConvUTF7::WC2MB(char *buf, const wchar_t *psz, size_t n) const len++; } } + cc = *psz; if (!(cc) || (cc < 0x80 && utf7encode[cc] < 1)) break; } + if (l != 0) { if (buf) *buf++ = utf7enb64[((d % 16) << (6 - l)) % 64]; + len++; } } + if (buf) *buf++ = '-'; len++; } } + if (buf && (len < n)) *buf = 0; + return len; } @@ -613,6 +728,7 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const unsigned cnt; for (cnt = 0; fc & 0x80; cnt++) fc <<= 1; + if (!cnt) { // plain ASCII char @@ -650,9 +766,11 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const invalid = true; break; } + psz++; res = (res << 6) | (cc & 0x3f); } + if (invalid || res <= utf8_max[ocnt]) { // illegal UTF-8 encoding @@ -671,7 +789,7 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const #ifdef WC_UTF16 // cast is ok because wchar_t == wxUuint16 if WC_UTF16 size_t pa = encode_utf16(res, (wxUint16 *)buf); - if (pa == (size_t)-1) + if (pa == wxCONV_FAILED) { invalid = true; } @@ -688,6 +806,7 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const #endif // WC_UTF16/!WC_UTF16 } } + if (invalid) { if (m_options & MAP_INVALID_UTF8_TO_PUA) @@ -697,7 +816,7 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const #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 != (size_t)-1); + wxASSERT(pa != wxCONV_FAILED); if (buf) buf += pa; opsz++; @@ -722,19 +841,22 @@ size_t wxMBConvUTF8::MB2WC(wchar_t *buf, const char *psz, size_t n) const *buf++ = (wchar_t)( L'0' + (on % 0100) / 010 ); *buf++ = (wchar_t)( L'0' + on % 010 ); } + opsz++; len += 4; } } else // MAP_INVALID_UTF8_NOT { - return (size_t)-1; + return wxCONV_FAILED; } } } } + if (buf && (len < n)) *buf = 0; + return len; } @@ -750,12 +872,13 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const while (*psz && ((!buf) || (len < n))) { wxUint32 cc; + #ifdef WC_UTF16 // cast is ok for WC_UTF16 size_t pa = decode_utf16((const wxUint16 *)psz, cc); - psz += (pa == (size_t)-1) ? 1 : pa; + psz += (pa == wxCONV_FAILED) ? 1 : pa; #else - cc=(*psz++) & 0x7fffffff; + cc = (*psz++) & 0x7fffffff; #endif if ( (m_options & MAP_INVALID_UTF8_TO_PUA) @@ -779,8 +902,8 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const { if (buf) { - *buf++ = (char) ((psz[0] - L'0')*0100 + - (psz[1] - L'0')*010 + + *buf++ = (char) ((psz[0] - L'0') * 0100 + + (psz[1] - L'0') * 010 + (psz[2] - L'0')); } @@ -790,7 +913,10 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const else { unsigned cnt; - for (cnt = 0; cc > utf8_max[cnt]; cnt++) {} + for (cnt = 0; cc > utf8_max[cnt]; cnt++) + { + } + if (!cnt) { // plain ASCII char @@ -798,7 +924,6 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const *buf++ = (char) cc; len++; } - else { len += cnt + 1; @@ -812,15 +937,15 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const } } - if (buf && (len dstLen ) + return wxCONV_FAILED; + + *dst++ = ch; } - if (buf && len 1) + if ( outLen > dstLen ) + return wxCONV_FAILED; + + *outBuff++ = cc[0]; + if ( numChars == 2 ) { - *(wxUint16*)buf = cc[1]; - buf += sizeof(wxUint16); + // second character of a surrogate + *outBuff++ = cc[1]; } } - - len += pa*sizeof(wxUint16); - psz++; } - if (buf && len<=n-sizeof(wxUint16)) *(wxUint16*)buf=0; - return len; + return outLen; } +// ---------------------------------------------------------------------------- +// endian-reversing conversions +// ---------------------------------------------------------------------------- -// swap 16bit MB to 32bit String -size_t wxMBConvUTF16swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const +size_t +wxMBConvUTF16swap::ToWChar(wchar_t *dst, size_t dstLen, + const char *src, size_t srcLen) const { - size_t len=0; + srcLen = GetLength(src, srcLen); + if ( srcLen == wxNO_LEN ) + return wxCONV_FAILED; - while (*(wxUint16*)psz && (!buf || len < n)) + const size_t inLen = srcLen / BYTES_PER_CHAR; + if ( !dst ) { - wxUint32 cc; - char tmp[4]; - tmp[0]=psz[1]; tmp[1]=psz[0]; - tmp[2]=psz[3]; tmp[3]=psz[2]; + // 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 pa=decode_utf16((wxUint16*)tmp, cc); - if (pa == (size_t)-1) - return pa; + 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]; - if (buf) - *buf++ = (wchar_t)cc; + 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++; - len++; - psz += pa * sizeof(wxUint16); + if ( ++outLen > dstLen ) + return wxCONV_FAILED; + + *dst++ = ch; } - if (buf && len 1) + if ( outLen > dstLen ) + return wxCONV_FAILED; + + *outBuff++ = wxUINT16_SWAP_ALWAYS(cc[0]); + if ( numChars == 2 ) { - *buf++ = ((char*)cc)[3]; - *buf++ = ((char*)cc)[2]; + // second character of a surrogate + *outBuff++ = wxUINT16_SWAP_ALWAYS(cc[1]); } } - - len += pa*sizeof(wxUint16); - psz++; } - if (buf && len<=n-sizeof(wxUint16)) *(wxUint16*)buf=0; - return len; + return outLen; } -#endif // WC_UTF16 +#endif // WC_UTF16/!WC_UTF16 -// ---------------------------------------------------------------------------- +// ============================================================================ // UTF-32 -// ---------------------------------------------------------------------------- +// ============================================================================ #ifdef WORDS_BIGENDIAN -#define wxMBConvUTF32straight wxMBConvUTF32BE -#define wxMBConvUTF32swap wxMBConvUTF32LE + #define wxMBConvUTF32straight wxMBConvUTF32BE + #define wxMBConvUTF32swap wxMBConvUTF32LE #else -#define wxMBConvUTF32swap wxMBConvUTF32BE -#define wxMBConvUTF32straight wxMBConvUTF32LE + #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 -// copy 32bit MB to 16bit String -size_t wxMBConvUTF32straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const +// ---------------------------------------------------------------------------- +// conversions without endianness change +// ---------------------------------------------------------------------------- + +size_t +wxMBConvUTF32straight::ToWChar(wchar_t *dst, size_t dstLen, + const char *src, size_t srcLen) const { - size_t len=0; + srcLen = GetLength(src, srcLen); + if ( srcLen == wxNO_LEN ) + return wxCONV_FAILED; - while (*(wxUint32*)psz && (!buf || len < n)) + 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; - size_t pa=encode_utf16(*(wxUint32*)psz, cc); - if (pa == (size_t)-1) - return pa; - - if (buf) + outLen += numChars; + if ( dst ) { - *buf++ = cc[0]; - if (pa > 1) - *buf++ = cc[1]; + if ( outLen > dstLen ) + return wxCONV_FAILED; + + *dst++ = cc[0]; + if ( numChars == 2 ) + { + // second character of a surrogate + *dst++ = cc[1]; + } } - len += pa; - psz += sizeof(wxUint32); } - if (buf && len dstLen ) + return wxCONV_FAILED; - return len; -} + *outBuff++ = ch; + } + return outLen; +} +// ---------------------------------------------------------------------------- +// endian-reversing conversions +// ---------------------------------------------------------------------------- -// swap 32bit MB to 16bit String -size_t wxMBConvUTF32swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const +size_t +wxMBConvUTF32swap::ToWChar(wchar_t *dst, size_t dstLen, + const char *src, size_t srcLen) const { - size_t len=0; + srcLen = GetLength(src, srcLen); + if ( srcLen == wxNO_LEN ) + return wxCONV_FAILED; - while (*(wxUint32*)psz && (!buf || len < n)) + 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++ ) { - char tmp[4]; - tmp[0] = psz[3]; tmp[1] = psz[2]; - tmp[2] = psz[1]; tmp[3] = psz[0]; - - wxUint16 cc[2]; + const size_t numChars = encode_utf16(wxUINT32_SWAP_ALWAYS(*inBuff), cc); + if ( numChars == wxCONV_FAILED ) + return wxCONV_FAILED; - size_t pa=encode_utf16(*(wxUint32*)tmp, cc); - if (pa == (size_t)-1) - return pa; - - if (buf) + outLen += numChars; + if ( dst ) { - *buf++ = cc[0]; - if (pa > 1) - *buf++ = cc[1]; + if ( outLen > dstLen ) + return wxCONV_FAILED; + + *dst++ = cc[0]; + if ( numChars == 2 ) + { + // second character of a surrogate + *dst++ = cc[1]; + } } - len += pa; - psz += sizeof(wxUint32); } - if (buf && len dstLen ) + return wxCONV_FAILED; - return len; + *outBuff++ = wxUINT32_SWAP_ALWAYS(ch); + } + + return outLen; } -#else // WC_UTF16 +#else // !WC_UTF16: wchar_t is UTF-32 +// ---------------------------------------------------------------------------- +// conversions without endianness change +// ---------------------------------------------------------------------------- -// copy 32bit MB to 32bit String -size_t wxMBConvUTF32straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const +size_t +wxMBConvUTF32straight::ToWChar(wchar_t *dst, size_t dstLen, + const char *src, size_t srcLen) const { - size_t len=0; + // use memcpy() as it should be much faster than hand-written loop + srcLen = GetLength(src, srcLen); + if ( srcLen == wxNO_LEN ) + return wxCONV_FAILED; - while (*(wxUint32*)psz && (!buf || len < n)) + const size_t inLen = srcLen/BYTES_PER_CHAR; + if ( dst ) { - if (buf) - *buf++ = (wchar_t)(*(wxUint32*)psz); - len++; - psz += sizeof(wxUint32); - } + if ( dstLen < inLen ) + return wxCONV_FAILED; - if (buf && lenm_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 + // 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: - virtual const char *GetMBNul(size_t *nulLen) const; - // 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; @@ -1362,9 +1622,13 @@ private: // different endian-ness than the native one static bool ms_wcNeedsSwap; - // NUL representation - size_t m_nulLen; - char m_nulBuf[8]; + + // 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 @@ -1376,6 +1640,7 @@ WXDLLIMPEXP_BASE wxMBConv* new_wxMBConv_iconv( const wxChar* name ) delete result; return 0; } + return result; } @@ -1383,8 +1648,9 @@ wxString wxMBConv_iconv::ms_wcCharsetName; bool wxMBConv_iconv::ms_wcNeedsSwap = false; wxMBConv_iconv::wxMBConv_iconv(const wxChar *name) + : m_name(name) { - m_nulLen = (size_t)-2; + m_minMBCharWidth = 0; // iconv operates with chars, not wxChars, but luckily it uses only ASCII // names for the charsets @@ -1415,11 +1681,12 @@ wxMBConv_iconv::wxMBConv_iconv(const wxChar *name) // first try charset with explicit bytesex info (e.g. "UCS-4LE"): wxString nameXE(nameCS); - #ifdef WORDS_BIGENDIAN + +#ifdef WORDS_BIGENDIAN nameXE += _T("BE"); - #else // little endian +#else // little endian nameXE += _T("LE"); - #endif +#endif wxLogTrace(TRACE_STRCONV, _T(" trying charset \"%s\""), nameXE.c_str()); @@ -1448,8 +1715,9 @@ wxMBConv_iconv::wxMBConv_iconv(const wxChar *name) wbufPtr = wbuf; bufPtr = buf; - res = iconv(m2w, ICONV_CHAR_CAST(&bufPtr), &insz, - (char**)&wbufPtr, &outsz); + res = iconv( + m2w, ICONV_CHAR_CAST(&bufPtr), &insz, + (char**)&wbufPtr, &outsz); if (ICONV_FAILED(res, insz)) { @@ -1508,6 +1776,31 @@ wxMBConv_iconv::~wxMBConv_iconv() 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 it's own iconv_t handle. // Unfortunately there is a couple of global wxCSConv objects such as @@ -1516,9 +1809,8 @@ size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const // 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 +#endif // wxUSE_THREADS - 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: @@ -1540,9 +1832,7 @@ size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const buf[n] = WC_BSWAP(buf[i]); } - // NB: iconv was given only strlen(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. + // NUL-terminate the string if there is any space left if (res < n) buf[res] = 0; } @@ -1552,23 +1842,26 @@ size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const // to calculate destination buffer requirement wchar_t tbuf[8]; res = 0; - do { + + do + { bufPtr = tbuf; - outbuf = 8*SIZEOF_WCHAR_T; + 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)); + 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 (size_t)-1; + return wxCONV_FAILED; } return res; @@ -1596,6 +1889,7 @@ size_t wxMBConv_iconv::WC2MB(char *buf, const wchar_t *psz, size_t n) const 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; } @@ -1605,7 +1899,7 @@ size_t wxMBConv_iconv::WC2MB(char *buf, const wchar_t *psz, size_t n) const // have destination buffer, convert there cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf ); - res = n-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 @@ -1615,17 +1909,20 @@ size_t wxMBConv_iconv::WC2MB(char *buf, const wchar_t *psz, size_t n) const } else { - // no destination buffer... convert using temp buffer + // no destination buffer: convert using temp buffer // to calculate destination buffer requirement char tbuf[16]; res = 0; - do { - buf = tbuf; outbuf = 16; + 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)); + } + while ((cres == (size_t)-1) && (errno == E2BIG)); } if (ms_wcNeedsSwap) @@ -1636,15 +1933,15 @@ size_t wxMBConv_iconv::WC2MB(char *buf, const wchar_t *psz, size_t n) const if (ICONV_FAILED(cres, inbuf)) { wxLogTrace(TRACE_STRCONV, wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode())); - return (size_t)-1; + return wxCONV_FAILED; } return res; } -const char *wxMBConv_iconv::GetMBNul(size_t *nulLen) const +size_t wxMBConv_iconv::GetMBNulLen() const { - if ( m_nulLen == (size_t)-2 ) + if ( m_minMBCharWidth == 0 ) { wxMBConv_iconv * const self = wxConstCast(this, wxMBConv_iconv); @@ -1653,14 +1950,23 @@ const char *wxMBConv_iconv::GetMBNul(size_t *nulLen) const wxMutexLocker lock(self->m_iconvMutex); #endif - size_t inLen = 1, - outLen = WXSIZEOF(m_nulBuf); - self->m_nulLen = iconv(w2m, ICONV_CHAR_CAST(L""), &inLen, - (char **)&self->m_nulBuf, &outLen); + 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; + } } - *nulLen = m_nulLen; - return m_nulBuf; + return m_minMBCharWidth; } #endif // HAVE_ICONV @@ -1684,24 +1990,30 @@ public: wxMBConv_win32() { m_CodePage = CP_ACP; - m_nulLen = (size_t)-2; + m_minMBCharWidth = 0; + } + + wxMBConv_win32(const wxMBConv_win32& conv) + { + m_CodePage = conv.m_CodePage; + m_minMBCharWidth = conv.m_minMBCharWidth; } #if wxUSE_FONTMAP wxMBConv_win32(const wxChar* name) { m_CodePage = wxCharsetToCodepage(name); - m_nulLen = (size_t)-2; + m_minMBCharWidth = 0; } wxMBConv_win32(wxFontEncoding encoding) { m_CodePage = wxEncodingToCodepage(encoding); - m_nulLen = (size_t)-2; + m_minMBCharWidth = 0; } #endif // wxUSE_FONTMAP - size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const + 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) @@ -1709,34 +2021,26 @@ public: // wouldn't work if reading an incomplete MB char didn't result in an // error // - // note however that using MB_ERR_INVALID_CHARS with CP_UTF7 results in - // an error (tested under Windows Server 2003) and apparently it is - // done on purpose, i.e. the function accepts any input in this case - // and although I'd prefer to return error on ill-formed output, our - // own wxMBConvUTF7 doesn't detect errors (e.g. lone "+" which is - // explicitly ill-formed according to RFC 2152) neither so we don't - // even have any fallback here... - // // Moreover, MB_ERR_INVALID_CHARS is only supported on Win 2K SP4 or - // Win XP or newer and if it is specified on older versions, conversion - // from CP_UTF8 (which can have flags only 0 or MB_ERR_INVALID_CHARS) - // fails. So we can only use the flag on newer Windows versions. - // Additionally, the flag is not supported by UTF7, symbol and CJK - // encodings. See here: + // 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 - int flags = 0; - if ( m_CodePage != CP_UTF7 && m_CodePage != CP_SYMBOL && - m_CodePage < 50000 && - IsAtLeastWin2kSP4() ) + if ( m_CodePage == CP_UTF8 ) { - flags = MB_ERR_INVALID_CHARS; + return wxConvUTF8.MB2WC(buf, psz, n); } - else if ( m_CodePage == CP_UTF8 ) + + if ( m_CodePage == CP_UTF7 ) { - // Avoid round-trip in the special case of UTF-8 by using our - // own UTF-8 conversion code: - return wxMBConvUTF8().MB2WC(buf, psz, n); + 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 @@ -1751,7 +2055,7 @@ public: if ( !len ) { // function totally failed - return (size_t)-1; + return wxCONV_FAILED; } // if we were really converting and didn't use MB_ERR_INVALID_CHARS, @@ -1775,7 +2079,7 @@ public: { // we didn't obtain the same thing we started from, hence // the conversion was lossy and we consider that it failed - return (size_t)-1; + return wxCONV_FAILED; } } @@ -1785,7 +2089,7 @@ public: return len - 1; } - size_t WC2MB(char *buf, const wchar_t *pwz, size_t n) const + virtual size_t WC2MB(char *buf, const wchar_t *pwz, size_t n) const { /* we have a problem here: by default, WideCharToMultiByte() may @@ -1836,7 +2140,7 @@ public: if ( !len ) { // function totally failed - return (size_t)-1; + return wxCONV_FAILED; } // if we were really converting, check if we succeeded @@ -1847,17 +2151,17 @@ public: // check if the conversion failed, i.e. if any replacements // were done if ( usedDef ) - return (size_t)-1; + return wxCONV_FAILED; } else // we must resort to double tripping... { wxWCharBuffer wcBuf(n); - if ( MB2WC(wcBuf.data(), buf, n) == (size_t)-1 || + 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 (size_t)-1; + return wxCONV_FAILED; } } } @@ -1866,6 +2170,47 @@ public: 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: @@ -1887,8 +2232,9 @@ private: break; default: - // unknown, be conseravtive by default + // unknown: be conservative by default s_isWin98Or2k = 0; + break; } wxASSERT_MSG( s_isWin98Or2k != -1, _T("should be set above") ); @@ -1924,35 +2270,13 @@ private: #endif } - virtual const char *GetMBNul(size_t *nulLen) const - { - if ( m_nulLen == (size_t)-2 ) - { - wxMBConv_win32 * const self = wxConstCast(this, wxMBConv_win32); - - self->m_nulLen = ::WideCharToMultiByte - ( - m_CodePage, // code page - 0, // no flags - L"", // input string - 1, // translate just NUL - self->m_nulBuf, // output buffer - WXSIZEOF(m_nulBuf), // and its size - NULL, // "replacement" char - NULL // [out] was it used? - ); - - if ( m_nulLen == 0 ) - self->m_nulLen = (size_t)-1; - } - - *nulLen = m_nulLen; - return m_nulBuf; - } + // the code page we're working with long m_CodePage; - size_t m_nulLen; - char m_nulBuf[8]; + + // cached result of GetMBNulLen(), set to 0 initially meaning + // "unknown" + size_t m_minMBCharWidth; }; #endif // wxHAVE_WIN32_MB2WC @@ -1963,9 +2287,9 @@ private: #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). +// 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 @@ -1973,12 +2297,13 @@ private: CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding) { CFStringEncoding enc = kCFStringEncodingInvalidId ; - if ( encoding == wxFONTENCODING_DEFAULT ) - { - enc = CFStringGetSystemEncoding(); - } - else switch( encoding) + + switch (encoding) { + case wxFONTENCODING_DEFAULT : + enc = CFStringGetSystemEncoding(); + break ; + case wxFONTENCODING_ISO8859_1 : enc = kCFStringEncodingISOLatin1 ; break ; @@ -2034,7 +2359,7 @@ CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding) // break ; case wxFONTENCODING_CP437 : - enc =kCFStringEncodingDOSLatinUS ; + enc = kCFStringEncodingDOSLatinUS ; break ; case wxFONTENCODING_CP850 : enc = kCFStringEncodingDOSLatin1; @@ -2046,7 +2371,7 @@ CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding) enc = kCFStringEncodingDOSCyrillic; break ; case wxFONTENCODING_CP866 : - enc =kCFStringEncodingDOSRussian ; + enc = kCFStringEncodingDOSRussian ; break ; case wxFONTENCODING_CP874 : enc = kCFStringEncodingDOSThai; @@ -2055,7 +2380,7 @@ CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding) enc = kCFStringEncodingDOSJapanese; break ; case wxFONTENCODING_CP936 : - enc =kCFStringEncodingDOSChineseSimplif ; + enc = kCFStringEncodingDOSChineseSimplif ; break ; case wxFONTENCODING_CP949 : enc = kCFStringEncodingDOSKorean; @@ -2067,10 +2392,10 @@ CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding) enc = kCFStringEncodingWindowsLatin2; break ; case wxFONTENCODING_CP1251 : - enc =kCFStringEncodingWindowsCyrillic ; + enc = kCFStringEncodingWindowsCyrillic ; break ; case wxFONTENCODING_CP1252 : - enc =kCFStringEncodingWindowsLatin1 ; + enc = kCFStringEncodingWindowsLatin1 ; break ; case wxFONTENCODING_CP1253 : enc = kCFStringEncodingWindowsGreek; @@ -2079,10 +2404,10 @@ CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding) enc = kCFStringEncodingWindowsLatin5; break ; case wxFONTENCODING_CP1255 : - enc =kCFStringEncodingWindowsHebrew ; + enc = kCFStringEncodingWindowsHebrew ; break ; case wxFONTENCODING_CP1256 : - enc =kCFStringEncodingWindowsArabic ; + enc = kCFStringEncodingWindowsArabic ; break ; case wxFONTENCODING_CP1257 : enc = kCFStringEncodingWindowsBalticRim; @@ -2220,10 +2545,12 @@ CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding) // case wxFONTENCODING_MACKEYBOARD : // enc = kCFStringEncodingMacKeyboardGlyphs ; // break ; + default : // because gcc is picky break ; - } ; + } + return enc ; } @@ -2235,6 +2562,11 @@ public: Init(CFStringGetSystemEncoding()) ; } + wxMBConv_cocoa(const wxMBConv_cocoa& conv) + { + m_encoding = conv.m_encoding; + } + #if wxUSE_FONTMAP wxMBConv_cocoa(const wxChar* name) { @@ -2288,12 +2620,12 @@ public: CFRelease(theString); - szUniCharBuffer[nOutLength] = '\0' ; + szUniCharBuffer[nOutLength] = '\0'; #if SIZEOF_WCHAR_T == 4 - wxMBConvUTF16 converter ; - converter.MB2WC(szOut, (const char*)szUniCharBuffer , nOutSize ) ; - delete[] szUniCharBuffer; + wxMBConvUTF16 converter; + converter.MB2WC( szOut, (const char*)szUniCharBuffer, nOutSize ); + delete [] szUniCharBuffer; #endif return nOutLength; @@ -2309,9 +2641,9 @@ public: #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 = converter.WC2MB( NULL, szUnConv, 0 ); + szUniBuffer = new UniChar[ (nBufSize / sizeof(UniChar)) + 1]; + converter.WC2MB( (char*) szUniBuffer, szUnConv, nBufSize + sizeof(UniChar)); nBufSize /= sizeof(UniChar); #endif @@ -2357,6 +2689,8 @@ public: return nRealOutSize - 1; } + virtual wxMBConv *Clone() const { return new wxMBConv_cocoa(*this); } + bool IsOk() const { return m_encoding != kCFStringEncodingInvalidId && @@ -2383,10 +2717,15 @@ public: 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) ) ) ; + Init( wxMacGetSystemEncFromFontEnc( wxFontMapperBase::Get()->CharsetToEncoding(name, false) ) ); } #endif @@ -2407,7 +2746,7 @@ public: { OSStatus status = noErr ; m_char_encoding = encoding ; - m_unicode_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode16BitFormat) ; + m_unicode_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault, 0, kUnicode16BitFormat) ; status = TECCreateConverter(&m_MB2WC_converter, m_char_encoding, @@ -2421,35 +2760,41 @@ public: { OSStatus status = noErr ; ByteCount byteOutLen ; - ByteCount byteInLen = strlen(psz) ; + 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) ; + // 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); + + 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 ) ; + res = converter.MB2WC( (buf ? buf : tbuf), (const char*)ubuf, n ) ; free( ubuf ) ; #else res = byteOutLen / sizeof( UniChar ) ; #endif + if ( buf == NULL ) free(tbuf) ; @@ -2469,27 +2814,32 @@ public: if (buf == NULL) { - //apple specs say at least 32 - n = wxMax( 32 , ((byteInLen / SIZEOF_WCHAR_T) * 8) + SIZEOF_WCHAR_T ); + // 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 ) ; + size_t unicharlen = converter.WC2MB( NULL, psz, 0 ) ; byteInLen = unicharlen ; ubuf = (UniChar*) malloc( byteInLen + 2 ) ; - converter.WC2MB( (char*) ubuf , psz, unicharlen + 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); + + 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) ; @@ -2502,28 +2852,30 @@ public: //of bogus characters wxWCharBuffer wcBuf(n); size_t pszlen = wxWcslen(psz); - if ( MB2WC(wcBuf.data(), buf, n) == (size_t)-1 || + 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 (size_t)-1; + return wxCONV_FAILED; } } return res ; } + virtual wxMBConv *Clone() const { return new wxMBConv_mac(*this); } + bool IsOk() const - { return m_MB2WC_converter != NULL && m_WC2MB_converter != NULL ; } + { return m_MB2WC_converter != NULL && m_WC2MB_converter != NULL; } private: - TECObjectRef m_MB2WC_converter ; - TECObjectRef m_WC2MB_converter ; + TECObjectRef m_MB2WC_converter; + TECObjectRef m_WC2MB_converter; - TextEncodingBase m_char_encoding ; - TextEncodingBase m_unicode_encoding ; + TextEncodingBase m_char_encoding; + TextEncodingBase m_unicode_encoding; }; #endif // defined(__WXMAC__) && defined(TARGET_CARBON) @@ -2568,8 +2920,8 @@ public: size_t inbuf = strlen(psz); if (buf) { - if (!m2w.Convert(psz,buf)) - return (size_t)-1; + if (!m2w.Convert(psz, buf)) + return wxCONV_FAILED; } return inbuf; } @@ -2579,40 +2931,39 @@ public: const size_t inbuf = wxWcslen(psz); if (buf) { - if (!w2m.Convert(psz,buf)) - return (size_t)-1; + if (!w2m.Convert(psz, buf)) + return wxCONV_FAILED; } return inbuf; } - bool IsOk() const { return m_ok; } - -public: - wxFontEncoding m_enc; - wxEncodingConverter m2w, w2m; - -private: - virtual const char *GetMBNul(size_t *nulLen) const + virtual size_t GetMBNulLen() const { switch ( m_enc ) { case wxFONTENCODING_UTF16BE: case wxFONTENCODING_UTF16LE: - *nulLen = 2; - return "\0"; + return 2; case wxFONTENCODING_UTF32BE: case wxFONTENCODING_UTF32LE: - *nulLen = 4; - return "\0\0\0"; + return 4; default: - *nulLen = 1; - return ""; + return 1; } } + virtual wxMBConv *Clone() const { return new wxMBConv_wxwin(m_enc); } + + bool IsOk() const { return m_ok; } + +public: + wxFontEncoding m_enc; + wxEncodingConverter m2w, w2m; + +private: // were we initialized successfully? bool m_ok; @@ -2628,6 +2979,7 @@ WXDLLIMPEXP_BASE wxMBConv* new_wxMBConv_wxwin( const wxChar* name ) delete result; return 0; } + return result; } @@ -2823,13 +3175,13 @@ wxMBConv *wxCSConv::DoCreate() const #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); @@ -2843,17 +3195,18 @@ wxMBConv *wxCSConv::DoCreate() const } } #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; @@ -2895,7 +3248,7 @@ wxMBConv *wxCSConv::DoCreate() const default: // nothing to do but put here to suppress gcc warnings - ; + break; } // step (3) @@ -2930,6 +3283,7 @@ wxMBConv *wxCSConv::DoCreate() const wxString::Format(_("encoding %s"), m_encoding).c_str() #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP ); + alreadyLoggingError = false; } @@ -2989,7 +3343,8 @@ size_t wxCSConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const for (size_t c = 0; c <= len; c++) { if (psz[c] > 0xFF) - return (size_t)-1; + return wxCONV_FAILED; + buf[c] = (char)psz[c]; } } @@ -2998,25 +3353,23 @@ size_t wxCSConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const for (size_t c = 0; c <= len; c++) { if (psz[c] > 0xFF) - return (size_t)-1; + return wxCONV_FAILED; } } return len; } -const char *wxCSConv::GetMBNul(size_t *nulLen) const +size_t wxCSConv::GetMBNulLen() const { CreateConvIfNeeded(); if ( m_convReal ) { - // cast needed just to call private function of m_convReal - return ((wxCSConv *)m_convReal)->GetMBNul(nulLen); + return m_convReal->GetMBNulLen(); } - *nulLen = 1; - return ""; + return 1; } // ----------------------------------------------------------------------------