/////////////////////////////////////////////////////////////////////////////
-// Name: strconv.cpp
+// Name: src/common/strconv.cpp
// Purpose: Unicode conversion classes
// Author: Ove Kaaven, Robert Roebling, Vadim Zeitlin, Vaclav Slavik,
// Ryan Norton, Fredrik Roubert (UTF7)
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-// ============================================================================
-// declarations
-// ============================================================================
-
-// ----------------------------------------------------------------------------
-// headers
-// ----------------------------------------------------------------------------
-
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma implementation "strconv.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
-#ifdef __BORLANDC__
- #pragma hdrstop
-#endif
-
#ifndef WX_PRECOMP
+ #ifdef __WXMSW__
+ #include "wx/msw/missing.h"
+ #endif
#include "wx/intl.h"
#include "wx/log.h"
-#endif // WX_PRECOMP
+ #include "wx/utils.h"
+ #include "wx/hashmap.h"
+#endif
#include "wx/strconv.h"
#if wxUSE_WCHAR_T
-#ifdef __WXMSW__
- #include "wx/msw/private.h"
-#endif
-
#ifdef __WINDOWS__
- #include "wx/msw/missing.h"
+ #include "wx/msw/private.h"
#endif
#ifndef __WXWINCE__
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
-#ifdef HAVE_LANGINFO_H
- #include <langinfo.h>
-#endif
#if defined(__WIN32__) && !defined(__WXMICROWIN__)
#define wxHAVE_WIN32_MB2WC
-#endif // __WIN32__ but !__WXMICROWIN__
-
-// ----------------------------------------------------------------------------
-// headers
-// ----------------------------------------------------------------------------
+#endif
#ifdef __SALFORDC__
#include <clib.h>
#include "wx/encconv.h"
#include "wx/fontmap.h"
-#include "wx/utils.h"
#ifdef __WXMAC__
+#ifndef __DARWIN__
#include <ATSUnicode.h>
#include <TextCommon.h>
#include <TextEncodingConverter.h>
+#endif
-#include "wx/mac/private.h" // includes mac headers
+// includes Mac headers
+#include "wx/mac/private.h"
#endif
-// ----------------------------------------------------------------------------
-// macros
-// ----------------------------------------------------------------------------
-#define BSWAP_UCS4(str, len) { unsigned _c; for (_c=0; _c<len; _c++) str[_c]=wxUINT32_SWAP_ALWAYS(str[_c]); }
-#define BSWAP_UTF16(str, len) { unsigned _c; for (_c=0; _c<len; _c++) str[_c]=wxUINT16_SWAP_ALWAYS(str[_c]); }
-#if SIZEOF_WCHAR_T == 4
- #define WC_NAME "UCS4"
- #define WC_BSWAP BSWAP_UCS4
- #ifdef WORDS_BIGENDIAN
- #define WC_NAME_BEST "UCS-4BE"
- #else
- #define WC_NAME_BEST "UCS-4LE"
- #endif
-#elif SIZEOF_WCHAR_T == 2
- #define WC_NAME "UTF16"
- #define WC_BSWAP BSWAP_UTF16
+#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
- #ifdef WORDS_BIGENDIAN
- #define WC_NAME_BEST "UTF-16BE"
- #else
- #define WC_NAME_BEST "UTF-16LE"
- #endif
-#else // sizeof(wchar_t) != 2 nor 4
- // does this ever happen?
- #error "Unknown sizeof(wchar_t): please report this to wx-dev@lists.wxwindows.org"
#endif
+
// ============================================================================
// 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
{
}
}
+#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()
+size_t
+wxMBConv::ToWChar(wchar_t *dst, size_t dstLen,
+ const char *src, size_t srcLen) const
{
- // nothing to do here (necessary for Darwin linking probably)
-}
+ // although new conversion classes are supposed to implement this function
+ // directly, the existins ones only implement the old MB2WC() and so, to
+ // avoid to have to rewrite all conversion classes at once, we provide a
+ // default (but not efficient) implementation of this one in terms of the
+ // old function by copying the input to ensure that it's NUL-terminated and
+ // then using MB2WC() to convert it
+
+ // the number of chars [which would be] written to dst [if it were not NULL]
+ size_t dstWritten = 0;
+
+ // the number of NULs terminating this string
+ size_t nulLen = 0; // not really needed, but just to avoid warnings
+
+ // if we were not given the input size we just have to assume that the
+ // string is properly terminated as we have no way of knowing how long it
+ // is anyhow, but if we do have the size check whether there are enough
+ // NULs at the end
+ wxCharBuffer bufTmp;
+ const char *srcEnd;
+ if ( srcLen != wxNO_LEN )
+ {
+ // we need to know how to find the end of this string
+ nulLen = GetMBNulLen();
+ if ( nulLen == wxCONV_FAILED )
+ return wxCONV_FAILED;
+
+ // if there are enough NULs we can avoid the copy
+ if ( srcLen < nulLen || NotAllNULs(src + srcLen - nulLen, nulLen) )
+ {
+ // make a copy in order to properly NUL-terminate the string
+ bufTmp = wxCharBuffer(srcLen + nulLen - 1 /* 1 will be added */);
+ char * const p = bufTmp.data();
+ memcpy(p, src, srcLen);
+ for ( char *s = p + srcLen; s < p + srcLen + nulLen; s++ )
+ *s = '\0';
+
+ src = bufTmp;
+ }
-const wxWCharBuffer wxMBConv::cMB2WC(const char *psz) const
-{
- if ( psz )
+ srcEnd = src + srcLen;
+ }
+ else // quit after the first loop iteration
{
- // calculate the length of the buffer needed first
- size_t nLen = MB2WC(NULL, psz, 0);
- if ( nLen != (size_t)-1 )
+ 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 )
{
- // 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;
- }
+ // nothing left in the input string, conversion succeeded
+ break;
}
- }
- wxWCharBuffer buf((wchar_t *)NULL);
+ if ( dst )
+ {
+ if ( dstWritten > dstLen )
+ return wxCONV_FAILED;
- return buf;
-}
+ if ( MB2WC(dst, src, lenChunk) == wxCONV_FAILED )
+ return wxCONV_FAILED;
-const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *pwz) const
-{
- if ( pwz )
- {
- size_t nLen = WC2MB(NULL, pwz, 0);
- if ( nLen != (size_t)-1 )
+ dst += lenChunk;
+ }
+
+ if ( !srcEnd )
{
- wxCharBuffer buf(nLen+3); // space for a wxUint32 trailing zero
- nLen = WC2MB(buf.data(), pwz, nLen + 4);
- if ( nLen != (size_t)-1 )
- {
- return buf;
- }
+ // we convert just one chunk in this case as this is the entire
+ // string anyhow
+ break;
}
- }
- wxCharBuffer buf((char *)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
-const wxWCharBuffer wxMBConv::cMB2WC(const char *szString, size_t nStringLen, size_t* pOutSize) const
-{
- wxASSERT(pOutSize != NULL);
+ // 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;
+ }
- const char* szEnd = szString + nStringLen + 1;
- const char* szPos = szString;
- const char* szStart = szPos;
+ return dstWritten;
+}
- size_t nActualLength = 0;
- size_t nCurrentSize = nStringLen; //try normal size first (should never resize?)
+size_t
+wxMBConv::FromWChar(char *dst, size_t dstLen,
+ const wchar_t *src, size_t srcLen) const
+{
+ // the number of chars [which would be] written to dst [if it were not NULL]
+ size_t dstWritten = 0;
- wxWCharBuffer theBuffer(nCurrentSize);
+ // make a copy of the input string unless it is already properly
+ // NUL-terminated
+ //
+ // if we don't know its length we have no choice but to assume that it is,
+ // indeed, properly terminated
+ wxWCharBuffer bufTmp;
+ if ( srcLen == wxNO_LEN )
+ {
+ srcLen = wxWcslen(src) + 1;
+ }
+ else if ( srcLen != 0 && src[srcLen - 1] != L'\0' )
+ {
+ // make a copy in order to properly NUL-terminate the string
+ bufTmp = wxWCharBuffer(srcLen);
+ memcpy(bufTmp.data(), src, srcLen * sizeof(wchar_t));
+ src = bufTmp;
+ }
- //Convert the string until the length() is reached, continuing the
- //loop every time a null character is reached
- while(szPos != szEnd)
+ const size_t lenNul = GetMBNulLen();
+ for ( const wchar_t * const srcEnd = src + srcLen;
+ src < srcEnd;
+ src += wxWcslen(src) + 1 /* skip L'\0' too */ )
{
- wxASSERT(szPos < szEnd); //something is _really_ screwed up if this rings true
+ // try to convert the current chunk
+ size_t lenChunk = WC2MB(NULL, src, 0);
- //Get the length of the current (sub)string
- size_t nLen = MB2WC(NULL, szPos, 0);
+ if ( lenChunk == wxCONV_FAILED )
+ return wxCONV_FAILED;
- //Invalid conversion?
- if( nLen == (size_t)-1 )
- {
- *pOutSize = 0;
- theBuffer.data()[0u] = wxT('\0');
- return theBuffer;
- }
+ lenChunk += lenNul;
+ dstWritten += lenChunk;
+ if ( dst )
+ {
+ if ( dstWritten > dstLen )
+ return wxCONV_FAILED;
- //Increase the actual length (+1 for current null character)
- nActualLength += nLen + 1;
+ if ( WC2MB(dst, src, lenChunk) == wxCONV_FAILED )
+ return wxCONV_FAILED;
- //if buffer too big, realloc the buffer
- if (nActualLength > (nCurrentSize+1))
- {
- wxWCharBuffer theNewBuffer(nCurrentSize << 1);
- memcpy(theNewBuffer.data(), theBuffer.data(), nCurrentSize * sizeof(wchar_t));
- theBuffer = theNewBuffer;
- nCurrentSize <<= 1;
+ dst += lenChunk;
}
+ }
- //Convert the current (sub)string
- if ( MB2WC(&theBuffer.data()[szPos - szStart], szPos, nLen + 1) == (size_t)-1 )
- {
- *pOutSize = 0;
- theBuffer.data()[0u] = wxT('\0');
- return theBuffer;
- }
+ return dstWritten;
+}
- //Increment to next (sub)string
- //Note that we have to use strlen here instead of nLen
- //here because XX2XX gives us the size of the output buffer,
- //not neccessarly the length of the string
- szPos += strlen(szPos) + 1;
+size_t wxMBConv::MB2WC(wchar_t *outBuff, const char *inBuff, size_t outLen) const
+{
+ size_t rc = ToWChar(outBuff, outLen, inBuff);
+ if ( rc != wxCONV_FAILED )
+ {
+ // ToWChar() returns the buffer length, i.e. including the trailing
+ // NUL, while this method doesn't take it into account
+ rc--;
}
- //success - return actual length and the buffer
- *pOutSize = nActualLength;
- return theBuffer;
+ return rc;
}
-const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *szString, size_t nStringLen, size_t* pOutSize) const
+size_t wxMBConv::WC2MB(char *outBuff, const wchar_t *inBuff, size_t outLen) const
{
- wxASSERT(pOutSize != NULL);
-
- const wchar_t* szEnd = szString + nStringLen + 1;
- const wchar_t* szPos = szString;
- const wchar_t* szStart = szPos;
+ size_t rc = FromWChar(outBuff, outLen, inBuff);
+ if ( rc != wxCONV_FAILED )
+ {
+ rc -= GetMBNulLen();
+ }
- size_t nActualLength = 0;
- size_t nCurrentSize = nStringLen << 2; //try * 4 first
+ return rc;
+}
- wxCharBuffer theBuffer(nCurrentSize);
+wxMBConv::~wxMBConv()
+{
+ // nothing to do here (necessary for Darwin linking probably)
+}
- //Convert the string until the length() is reached, continuing the
- //loop every time a null character is reached
- while(szPos != szEnd)
+const wxWCharBuffer wxMBConv::cMB2WC(const char *psz) const
+{
+ if ( psz )
{
- wxASSERT(szPos < szEnd); //something is _really_ screwed up if this rings true
+ // calculate the length of the buffer needed first
+ const size_t nLen = MB2WC(NULL, psz, 0);
+ if ( nLen != wxCONV_FAILED )
+ {
+ // now do the actual conversion
+ wxWCharBuffer buf(nLen /* +1 added implicitly */);
+
+ // +1 for the trailing NULL
+ if ( MB2WC(buf.data(), psz, nLen + 1) != wxCONV_FAILED )
+ return buf;
+ }
+ }
- //Get the length of the current (sub)string
- size_t nLen = WC2MB(NULL, szPos, 0);
+ return wxWCharBuffer();
+}
- //Invalid conversion?
- if( nLen == (size_t)-1 )
+const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *pwz) const
+{
+ if ( pwz )
+ {
+ const size_t nLen = WC2MB(NULL, pwz, 0);
+ if ( nLen != wxCONV_FAILED )
{
- *pOutSize = 0;
- theBuffer.data()[0u] = wxT('\0');
- return theBuffer;
+ // extra space for trailing NUL(s)
+ static const size_t extraLen = GetMaxMBNulLen();
+
+ wxCharBuffer buf(nLen + extraLen - 1);
+ if ( WC2MB(buf.data(), pwz, nLen + extraLen) != wxCONV_FAILED )
+ return buf;
}
+ }
+
+ return wxCharBuffer();
+}
- //Increase the actual length (+1 for current null character)
- nActualLength += nLen + 1;
-
- //if buffer too big, realloc the buffer
- if (nActualLength > (nCurrentSize+1))
+const wxWCharBuffer
+wxMBConv::cMB2WC(const char *inBuff, size_t inLen, size_t *outLen) const
+{
+ const size_t dstLen = ToWChar(NULL, 0, inBuff, inLen);
+ if ( dstLen != wxCONV_FAILED )
+ {
+ wxWCharBuffer wbuf(dstLen - 1);
+ if ( ToWChar(wbuf.data(), dstLen, inBuff, inLen) != wxCONV_FAILED )
{
- wxCharBuffer theNewBuffer(nCurrentSize << 1);
- memcpy(theNewBuffer.data(), theBuffer.data(), nCurrentSize);
- theBuffer = theNewBuffer;
- nCurrentSize <<= 1;
+ if ( outLen )
+ {
+ *outLen = dstLen;
+ if ( wbuf[dstLen - 1] == L'\0' )
+ (*outLen)--;
+ }
+
+ return wbuf;
}
+ }
+
+ if ( outLen )
+ *outLen = 0;
+
+ return wxWCharBuffer();
+}
- //Convert the current (sub)string
- if(WC2MB(&theBuffer.data()[szPos - szStart], szPos, nLen + 1) == (size_t)-1 )
+const wxCharBuffer
+wxMBConv::cWC2MB(const wchar_t *inBuff, size_t inLen, size_t *outLen) const
+{
+ size_t dstLen = FromWChar(NULL, 0, inBuff, inLen);
+ if ( dstLen != wxCONV_FAILED )
+ {
+ // special case of empty input: can't allocate 0 size buffer below as
+ // wxCharBuffer insists on NUL-terminating it
+ wxCharBuffer buf(dstLen ? dstLen - 1 : 1);
+ if ( FromWChar(buf.data(), dstLen, inBuff, inLen) != wxCONV_FAILED )
{
- *pOutSize = 0;
- theBuffer.data()[0u] = wxT('\0');
- return theBuffer;
- }
+ if ( outLen )
+ {
+ *outLen = dstLen;
+
+ const size_t nulLen = GetMBNulLen();
+ if ( dstLen >= nulLen &&
+ !NotAllNULs(buf.data() + dstLen - nulLen, nulLen) )
+ {
+ // in this case the output is NUL-terminated and we're not
+ // supposed to count NUL
+ *outLen -= nulLen;
+ }
+ }
- //Increment to next (sub)string
- //Note that we have to use wxWcslen here instead of nLen
- //here because XX2XX gives us the size of the output buffer,
- //not neccessarly the length of the string
- szPos += wxWcslen(szPos) + 1;
+ return buf;
+ }
}
- //success - return actual length and the buffer
- *pOutSize = nActualLength;
- return theBuffer;
+ if ( outLen )
+ *outLen = 0;
+
+ return wxCharBuffer();
}
// ----------------------------------------------------------------------------
}
// ----------------------------------------------------------------------------
-// wxConvBrokenFileNames is made for GTK2 in Unicode mode when
-// files are accidentally written in an encoding which is not
-// the system encoding. Typically, the system encoding will be
-// UTF8 but there might be files stored in ISO8859-1 on disk.
+// wxConvBrokenFileNames
// ----------------------------------------------------------------------------
-class wxConvBrokenFileNames: public wxMBConvLibc
-{
-public:
- wxConvBrokenFileNames() : m_utf8conv(wxMBConvUTF8::MAP_INVALID_UTF8_TO_OCTAL) { }
- virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
- virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;
- inline bool UseUTF8() const;
-private:
- wxMBConvUTF8 m_utf8conv;
-};
-
-bool wxConvBrokenFileNames::UseUTF8() const
-{
-#if defined HAVE_LANGINFO_H && defined CODESET
- char *codeset = nl_langinfo(CODESET);
- return strcmp(codeset, "UTF-8") == 0;
-#else
- return false;
-#endif
-}
+#ifdef __UNIX__
-size_t wxConvBrokenFileNames::MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const
+wxConvBrokenFileNames::wxConvBrokenFileNames(const wxChar *charset)
{
- if (UseUTF8())
- return m_utf8conv.MB2WC( outputBuf, psz, outputSize );
+ if ( !charset || wxStricmp(charset, _T("UTF-8")) == 0
+ || wxStricmp(charset, _T("UTF8")) == 0 )
+ m_conv = new wxMBConvUTF8(wxMBConvUTF8::MAP_INVALID_UTF8_TO_OCTAL);
else
- return wxMBConvLibc::MB2WC( outputBuf, psz, outputSize );
+ m_conv = new wxCSConv(charset);
}
-size_t wxConvBrokenFileNames::WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const
-{
- if (UseUTF8())
- return m_utf8conv.WC2MB( outputBuf, psz, outputSize );
- else
- return wxMBConvLibc::WC2MB( outputBuf, psz, outputSize );
-}
+#endif // __UNIX__
// ----------------------------------------------------------------------------
-// UTF-7
+// UTF-7
// ----------------------------------------------------------------------------
// Implementation (C) 2004 Fredrik Roubert
{
size_t len = 0;
- while (*psz && ((!buf) || (len < n)))
+ while ( *psz && (!buf || (len < n)) )
{
unsigned char cc = *psz++;
if (cc != '+')
len++;
psz++;
}
- else
+ else // start of BASE64 encoded string
{
- // BASE64 encoded string
- bool lsb;
- unsigned char c;
+ bool lsb, ok;
unsigned int d, l;
- for (lsb = false, d = 0, l = 0;
- (cc = utf7unb64[(unsigned char)*psz]) != 0xff; psz++)
+ for ( ok = lsb = false, d = 0, l = 0;
+ (cc = utf7unb64[(unsigned char)*psz]) != 0xff;
+ psz++ )
{
d <<= 6;
d += cc;
for (l += 6; l >= 8; lsb = !lsb)
{
- c = (unsigned char)((d >> (l -= 8)) % 256);
+ unsigned char c = (unsigned char)((d >> (l -= 8)) % 256);
if (lsb)
{
if (buf)
len ++;
}
else
+ {
if (buf)
*buf = (wchar_t)(c << 8);
+ }
+
+ ok = true;
}
}
+
+ if ( !ok )
+ {
+ // in valid UTF7 we should have valid characters after '+'
+ return wxCONV_FAILED;
+ }
+
if (*psz == '-')
psz++;
}
}
- if (buf && (len < n))
- *buf = 0;
+
+ if ( buf && (len < n) )
+ *buf = '\0';
+
return len;
}
size_t wxMBConvUTF7::WC2MB(char *buf, const wchar_t *psz, size_t n) const
{
-
-
size_t len = 0;
while (*psz && ((!buf) || (len < n)))
// 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 != '+')
{
// BASE64 encode string
unsigned int lsb, d, l;
- for (d = 0, l = 0;; psz++)
+ for (d = 0, l = 0; /*nothing*/; psz++)
{
for (lsb = 0; lsb < 2; lsb ++)
{
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;
}
static wxUint32 utf8_max[]=
{ 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff, 0xffffffff };
+// boundaries of the private use area we use to (temporarily) remap invalid
+// characters invalid in a UTF-8 encoded string
const wxUint32 wxUnicodePUA = 0x100000;
const wxUint32 wxUnicodePUAEnd = wxUnicodePUA + 256;
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
{
invalid = true;
break;
}
+
psz++;
res = (res << 6) | (cc & 0x3f);
}
+
if (invalid || res <= utf8_max[ocnt])
{
// illegal UTF-8 encoding
#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;
}
}
#else // !WC_UTF16
if (buf)
- *buf++ = res;
+ *buf++ = (wchar_t)res;
len++;
#endif // WC_UTF16/!WC_UTF16
}
}
+
if (invalid)
{
if (m_options & MAP_INVALID_UTF8_TO_PUA)
#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++;
len += pa;
#else
if (buf)
- *buf++ = wxUnicodePUA + (unsigned char)*opsz;
+ *buf++ = (wchar_t)(wxUnicodePUA + (unsigned char)*opsz);
opsz++;
len++;
#endif
}
}
- else
- if (m_options & MAP_INVALID_UTF8_TO_OCTAL)
+ else if (m_options & MAP_INVALID_UTF8_TO_OCTAL)
{
while (opsz < psz && (!buf || len < n))
{
- wchar_t str[6];
- wxSnprintf( str, 5, L"\\%o", (int) (unsigned char) *opsz );
- if (buf)
- *buf++ = str[0];
- if (buf)
- *buf++ = str[1];
- if (buf)
- *buf++ = str[2];
- if (buf)
- *buf++ = str[3];
+ if ( buf && len + 3 < n )
+ {
+ unsigned char on = *opsz;
+ *buf++ = L'\\';
+ *buf++ = (wchar_t)( L'0' + on / 0100 );
+ *buf++ = (wchar_t)( L'0' + (on % 0100) / 010 );
+ *buf++ = (wchar_t)( L'0' + on % 010 );
+ }
+
opsz++;
len += 4;
}
}
- else
+ else // MAP_INVALID_UTF8_NOT
{
- return (size_t)-1;
+ return wxCONV_FAILED;
}
}
}
}
+
if (buf && (len < n))
*buf = 0;
+
return len;
}
+static inline bool isoctal(wchar_t wch)
+{
+ return L'0' <= wch && wch <= L'7';
+}
+
size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const
{
size_t len = 0;
while (*psz && ((!buf) || (len < n)))
{
wxUint32 cc;
+
#ifdef WC_UTF16
// cast is ok for WC_UTF16
size_t pa = decode_utf16((const wxUint16 *)psz, cc);
- psz += (pa == (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)
- && cc >= wxUnicodePUA && cc < wxUnicodePUAEnd)
+
+ if ( (m_options & MAP_INVALID_UTF8_TO_PUA)
+ && cc >= wxUnicodePUA && cc < wxUnicodePUAEnd )
{
if (buf)
*buf++ = (char)(cc - wxUnicodePUA);
len++;
- }
- else
- if ((m_options & MAP_INVALID_UTF8_TO_OCTAL)
- && cc == L'\\')
- {
- wchar_t str[4];
- str[0] = *psz; psz++;
- str[1] = *psz; psz++;
- str[2] = *psz; psz++;
- str[3] = 0;
- int octal;
- wxSscanf( str, L"%o", &octal );
+ }
+ else if ( (m_options & MAP_INVALID_UTF8_TO_OCTAL)
+ && cc == L'\\' && psz[0] == L'\\' )
+ {
+ if (buf)
+ *buf++ = (char)cc;
+ psz++;
+ len++;
+ }
+ else if ( (m_options & MAP_INVALID_UTF8_TO_OCTAL) &&
+ cc == L'\\' &&
+ isoctal(psz[0]) && isoctal(psz[1]) && isoctal(psz[2]) )
+ {
if (buf)
- *buf++ = (char) octal;
+ {
+ *buf++ = (char) ((psz[0] - L'0') * 0100 +
+ (psz[1] - L'0') * 010 +
+ (psz[2] - L'0'));
+ }
+
+ psz += 3;
len++;
}
else
{
unsigned cnt;
- for (cnt = 0; cc > utf8_max[cnt]; cnt++) {}
+ for (cnt = 0; cc > utf8_max[cnt]; cnt++)
+ {
+ }
+
if (!cnt)
{
// plain ASCII char
*buf++ = (char) cc;
len++;
}
-
else
{
len += cnt + 1;
}
}
- if (buf && (len<n)) *buf = 0;
+ if (buf && (len < n))
+ *buf = 0;
return len;
}
-// ----------------------------------------------------------------------------
+// ============================================================================
// UTF-16
-// ----------------------------------------------------------------------------
+// ============================================================================
#ifdef WORDS_BIGENDIAN
#define wxMBConvUTF16straight wxMBConvUTF16BE
#define wxMBConvUTF16straight wxMBConvUTF16LE
#endif
+/* static */
+size_t wxMBConvUTF16Base::GetLength(const char *src, size_t srcLen)
+{
+ if ( srcLen == wxNO_LEN )
+ {
+ // count the number of bytes in input, including the trailing NULs
+ const wxUint16 *inBuff = wx_reinterpret_cast(const wxUint16 *, src);
+ for ( srcLen = 1; *inBuff++; srcLen++ )
+ ;
+
+ srcLen *= BYTES_PER_CHAR;
+ }
+ else // we already have the length
+ {
+ // we can only convert an entire number of UTF-16 characters
+ if ( srcLen % BYTES_PER_CHAR )
+ return wxCONV_FAILED;
+ }
+
+ return srcLen;
+}
+// case when in-memory representation is UTF-16 too
#ifdef WC_UTF16
-// copy 16bit MB to 16bit String
-size_t wxMBConvUTF16straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+// ----------------------------------------------------------------------------
+// conversions without endianness change
+// ----------------------------------------------------------------------------
+
+size_t
+wxMBConvUTF16straight::ToWChar(wchar_t *dst, size_t dstLen,
+ const char *src, size_t srcLen) const
{
- size_t len=0;
+ // set up the scene for using memcpy() (which is presumably more efficient
+ // than copying the bytes one by one)
+ srcLen = GetLength(src, srcLen);
+ if ( srcLen == wxNO_LEN )
+ return wxCONV_FAILED;
- while (*(wxUint16*)psz && (!buf || len < n))
+ const size_t inLen = srcLen / BYTES_PER_CHAR;
+ if ( dst )
{
- if (buf)
- *buf++ = *(wxUint16*)psz;
- len++;
+ if ( dstLen < inLen )
+ return wxCONV_FAILED;
- psz += sizeof(wxUint16);
+ memcpy(dst, src, srcLen);
}
- if (buf && len<n) *buf=0;
- return len;
+ return inLen;
}
-
-// copy 16bit String to 16bit MB
-size_t wxMBConvUTF16straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+size_t
+wxMBConvUTF16straight::FromWChar(char *dst, size_t dstLen,
+ const wchar_t *src, size_t srcLen) const
{
- size_t len=0;
+ if ( srcLen == wxNO_LEN )
+ srcLen = wxWcslen(src) + 1;
- while (*psz && (!buf || len < n))
+ srcLen *= BYTES_PER_CHAR;
+
+ if ( dst )
{
- if (buf)
- {
- *(wxUint16*)buf = *psz;
- buf += sizeof(wxUint16);
- }
- len += sizeof(wxUint16);
- psz++;
+ if ( dstLen < srcLen )
+ return wxCONV_FAILED;
+
+ memcpy(dst, src, srcLen);
}
- if (buf && len<=n-sizeof(wxUint16)) *(wxUint16*)buf=0;
- return len;
+ return srcLen;
}
+// ----------------------------------------------------------------------------
+// endian-reversing conversions
+// ----------------------------------------------------------------------------
-// swap 16bit MB to 16bit 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))
+ srcLen /= BYTES_PER_CHAR;
+
+ if ( dst )
{
- if (buf)
+ if ( dstLen < srcLen )
+ return wxCONV_FAILED;
+
+ const wxUint16 *inBuff = wx_reinterpret_cast(const wxUint16 *, src);
+ for ( size_t n = 0; n < srcLen; n++, inBuff++ )
{
- ((char *)buf)[0] = psz[1];
- ((char *)buf)[1] = psz[0];
- buf++;
+ *dst++ = wxUINT16_SWAP_ALWAYS(*inBuff);
}
- len++;
- psz += sizeof(wxUint16);
}
- if (buf && len<n) *buf=0;
- return len;
+ return srcLen;
}
-
-// swap 16bit MB to 16bit String
-size_t wxMBConvUTF16swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+size_t
+wxMBConvUTF16swap::FromWChar(char *dst, size_t dstLen,
+ const wchar_t *src, size_t srcLen) const
{
- size_t len=0;
+ if ( srcLen == wxNO_LEN )
+ srcLen = wxWcslen(src) + 1;
+
+ srcLen *= BYTES_PER_CHAR;
- while (*psz && (!buf || len < n))
+ if ( dst )
{
- if (buf)
+ if ( dstLen < srcLen )
+ return wxCONV_FAILED;
+
+ wxUint16 *outBuff = wx_reinterpret_cast(wxUint16 *, dst);
+ for ( size_t n = 0; n < srcLen; n += BYTES_PER_CHAR, src++ )
{
- *buf++ = ((char*)psz)[1];
- *buf++ = ((char*)psz)[0];
+ *outBuff++ = wxUINT16_SWAP_ALWAYS(*src);
}
- len += sizeof(wxUint16);
- psz++;
}
- if (buf && len<=n-sizeof(wxUint16)) *(wxUint16*)buf=0;
- return len;
+ return srcLen;
}
+#else // !WC_UTF16: wchar_t is UTF-32
-#else // WC_UTF16
-
+// ----------------------------------------------------------------------------
+// conversions without endianness change
+// ----------------------------------------------------------------------------
-// copy 16bit MB to 32bit String
-size_t wxMBConvUTF16straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+size_t
+wxMBConvUTF16straight::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;
- size_t pa=decode_utf16((wxUint16*)psz, cc);
- if (pa == (size_t)-1)
- return pa;
+ // 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;
+ }
- if (buf)
- *buf++ = cc;
- len++;
- psz += pa * sizeof(wxUint16);
+ size_t outLen = 0;
+ const wxUint16 *inBuff = wx_reinterpret_cast(const wxUint16 *, src);
+ for ( const wxUint16 * const inEnd = inBuff + inLen; inBuff < inEnd; )
+ {
+ const wxUint32 ch = wxDecodeSurrogate(&inBuff);
+ if ( !inBuff )
+ return wxCONV_FAILED;
+
+ if ( ++outLen > dstLen )
+ return wxCONV_FAILED;
+
+ *dst++ = ch;
}
- if (buf && len<n) *buf=0;
- return len;
-}
+ return outLen;
+}
-// copy 32bit String to 16bit MB
-size_t wxMBConvUTF16straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+size_t
+wxMBConvUTF16straight::FromWChar(char *dst, size_t dstLen,
+ const wchar_t *src, size_t srcLen) const
{
- size_t len=0;
+ if ( srcLen == wxNO_LEN )
+ srcLen = wxWcslen(src) + 1;
- while (*psz && (!buf || len < n))
+ size_t outLen = 0;
+ wxUint16 *outBuff = wx_reinterpret_cast(wxUint16 *, dst);
+ for ( size_t n = 0; n < srcLen; n++ )
{
wxUint16 cc[2];
- size_t pa=encode_utf16(*psz, cc);
-
- if (pa == (size_t)-1)
- return pa;
+ const size_t numChars = encode_utf16(*src++, cc);
+ if ( numChars == wxCONV_FAILED )
+ return wxCONV_FAILED;
- if (buf)
+ outLen += numChars * BYTES_PER_CHAR;
+ if ( outBuff )
{
- *(wxUint16*)buf = cc[0];
- buf += sizeof(wxUint16);
- if (pa > 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++ = cc;
+ tmp[0] = wxUINT16_SWAP_ALWAYS(*inBuff);
+ inBuff++;
+ tmp[1] = wxUINT16_SWAP_ALWAYS(*inBuff);
- len++;
- psz += pa * sizeof(wxUint16);
+ const size_t numChars = decode_utf16(tmp, ch);
+ if ( numChars == wxCONV_FAILED )
+ return wxCONV_FAILED;
+
+ if ( numChars == 2 )
+ inBuff++;
+
+ if ( ++outLen > dstLen )
+ return wxCONV_FAILED;
+
+ *dst++ = ch;
}
- if (buf && len<n) *buf=0;
- return len;
-}
+ return outLen;
+}
-// swap 32bit String to 16bit MB
-size_t wxMBConvUTF16swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+size_t
+wxMBConvUTF16swap::FromWChar(char *dst, size_t dstLen,
+ const wchar_t *src, size_t srcLen) const
{
- size_t len=0;
+ if ( srcLen == wxNO_LEN )
+ srcLen = wxWcslen(src) + 1;
- while (*psz && (!buf || len < n))
+ size_t outLen = 0;
+ wxUint16 *outBuff = wx_reinterpret_cast(wxUint16 *, dst);
+ for ( const wchar_t *srcEnd = src + srcLen; src < srcEnd; src++ )
{
wxUint16 cc[2];
- size_t pa=encode_utf16(*psz, cc);
+ const size_t numChars = encode_utf16(*src, cc);
+ if ( numChars == wxCONV_FAILED )
+ return wxCONV_FAILED;
- if (pa == (size_t)-1)
- return pa;
-
- if (buf)
+ outLen += numChars * BYTES_PER_CHAR;
+ if ( outBuff )
{
- *buf++ = ((char*)cc)[1];
- *buf++ = ((char*)cc)[0];
- if (pa > 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<n) *buf=0;
- return len;
+ return outLen;
}
-
-// copy 16bit String to 32bit MB
-size_t wxMBConvUTF32straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+size_t
+wxMBConvUTF32straight::FromWChar(char *dst, size_t dstLen,
+ const wchar_t *src, size_t srcLen) const
{
- size_t len=0;
+ if ( srcLen == wxNO_LEN )
+ srcLen = wxWcslen(src) + 1;
- while (*psz && (!buf || len < n))
+ if ( !dst )
{
- wxUint32 cc;
+ // optimization: return maximal space which could be needed for this
+ // string instead of the exact amount which could be less if there are
+ // any surrogates in the input
+ //
+ // we consider that surrogates are rare enough to make it worthwhile to
+ // avoid running the loop below at the cost of slightly extra memory
+ // consumption
+ return srcLen * BYTES_PER_CHAR;
+ }
- // cast is ok for WC_UTF16
- size_t pa = decode_utf16((const wxUint16 *)psz, cc);
- if (pa == (size_t)-1)
- return pa;
+ wxUint32 *outBuff = wx_reinterpret_cast(wxUint32 *, dst);
+ size_t outLen = 0;
+ for ( const wchar_t * const srcEnd = src + srcLen; src < srcEnd; )
+ {
+ const wxUint32 ch = wxDecodeSurrogate(&src);
+ if ( !src )
+ return wxCONV_FAILED;
- if (buf)
- {
- *(wxUint32*)buf = cc;
- buf += sizeof(wxUint32);
- }
- len += sizeof(wxUint32);
- psz += pa;
- }
+ outLen += BYTES_PER_CHAR;
- if (buf && len<=n-sizeof(wxUint32))
- *(wxUint32*)buf=0;
+ if ( outLen > 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<n)
- *buf=0;
-
- return len;
+ return outLen;
}
-
-// swap 16bit String to 32bit MB
-size_t wxMBConvUTF32swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+size_t
+wxMBConvUTF32swap::FromWChar(char *dst, size_t dstLen,
+ const wchar_t *src, size_t srcLen) const
{
- size_t len=0;
+ if ( srcLen == wxNO_LEN )
+ srcLen = wxWcslen(src) + 1;
- while (*psz && (!buf || len < n))
+ if ( !dst )
{
- char cc[4];
+ // optimization: return maximal space which could be needed for this
+ // string instead of the exact amount which could be less if there are
+ // any surrogates in the input
+ //
+ // we consider that surrogates are rare enough to make it worthwhile to
+ // avoid running the loop below at the cost of slightly extra memory
+ // consumption
+ return srcLen*BYTES_PER_CHAR;
+ }
- // cast is ok for WC_UTF16
- size_t pa=decode_utf16((const wxUint16 *)psz, *(wxUint32*)cc);
- if (pa == (size_t)-1)
- return pa;
+ wxUint32 *outBuff = wx_reinterpret_cast(wxUint32 *, dst);
+ size_t outLen = 0;
+ for ( const wchar_t * const srcEnd = src + srcLen; src < srcEnd; )
+ {
+ const wxUint32 ch = wxDecodeSurrogate(&src);
+ if ( !src )
+ return wxCONV_FAILED;
- if (buf)
- {
- *buf++ = cc[3];
- *buf++ = cc[2];
- *buf++ = cc[1];
- *buf++ = cc[0];
- }
- len += sizeof(wxUint32);
- psz += pa;
- }
+ outLen += BYTES_PER_CHAR;
- if (buf && len<=n-sizeof(wxUint32))
- *(wxUint32*)buf=0;
+ if ( outLen > 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++ = *(wxUint32*)psz;
- len++;
- psz += sizeof(wxUint32);
- }
+ if ( dstLen < inLen )
+ return wxCONV_FAILED;
- if (buf && len<n)
- *buf=0;
+ memcpy(dst, src, srcLen);
+ }
- return len;
+ return inLen;
}
-
-// copy 32bit String to 32bit MB
-size_t wxMBConvUTF32straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+size_t
+wxMBConvUTF32straight::FromWChar(char *dst, size_t dstLen,
+ const wchar_t *src, size_t srcLen) const
{
- size_t len=0;
+ if ( srcLen == wxNO_LEN )
+ srcLen = wxWcslen(src) + 1;
- while (*psz && (!buf || len < n))
+ srcLen *= BYTES_PER_CHAR;
+
+ if ( dst )
{
- if (buf)
- {
- *(wxUint32*)buf = *psz;
- buf += sizeof(wxUint32);
- }
+ if ( dstLen < srcLen )
+ return wxCONV_FAILED;
- len += sizeof(wxUint32);
- psz++;
+ memcpy(dst, src, srcLen);
}
- if (buf && len<=n-sizeof(wxUint32))
- *(wxUint32*)buf=0;
-
- return len;
+ return srcLen;
}
+// ----------------------------------------------------------------------------
+// endian-reversing conversions
+// ----------------------------------------------------------------------------
-// swap 32bit MB to 32bit 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))
+ srcLen /= BYTES_PER_CHAR;
+
+ if ( dst )
{
- if (buf)
+ if ( dstLen < srcLen )
+ return wxCONV_FAILED;
+
+ const wxUint32 *inBuff = wx_reinterpret_cast(const wxUint32 *, src);
+ for ( size_t n = 0; n < srcLen; n++, inBuff++ )
{
- ((char *)buf)[0] = psz[3];
- ((char *)buf)[1] = psz[2];
- ((char *)buf)[2] = psz[1];
- ((char *)buf)[3] = psz[0];
- buf++;
+ *dst++ = wxUINT32_SWAP_ALWAYS(*inBuff);
}
- len++;
- psz += sizeof(wxUint32);
}
- if (buf && len<n)
- *buf=0;
-
- return len;
+ return srcLen;
}
-
-// swap 32bit String to 32bit MB
-size_t wxMBConvUTF32swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+size_t
+wxMBConvUTF32swap::FromWChar(char *dst, size_t dstLen,
+ const wchar_t *src, size_t srcLen) const
{
- size_t len=0;
+ if ( srcLen == wxNO_LEN )
+ srcLen = wxWcslen(src) + 1;
- while (*psz && (!buf || len < n))
+ srcLen *= BYTES_PER_CHAR;
+
+ if ( dst )
{
- if (buf)
+ if ( dstLen < srcLen )
+ return wxCONV_FAILED;
+
+ wxUint32 *outBuff = wx_reinterpret_cast(wxUint32 *, dst);
+ for ( size_t n = 0; n < srcLen; n += BYTES_PER_CHAR, src++ )
{
- *buf++ = ((char *)psz)[3];
- *buf++ = ((char *)psz)[2];
- *buf++ = ((char *)psz)[1];
- *buf++ = ((char *)psz)[0];
+ *outBuff++ = wxUINT32_SWAP_ALWAYS(*src);
}
- len += sizeof(wxUint32);
- psz++;
}
- if (buf && len<=n-sizeof(wxUint32))
- *(wxUint32*)buf=0;
-
- return len;
+ return srcLen;
}
-
-#endif // WC_UTF16
+#endif // WC_UTF16/!WC_UTF16
// ============================================================================
#define ICONV_CHAR_CAST(x) ((ICONV_CONST char **)(x))
+#define ICONV_T_INVALID ((iconv_t)-1)
+
+#if SIZEOF_WCHAR_T == 4
+ #define WC_BSWAP wxUINT32_SWAP_ALWAYS
+ #define WC_ENC wxFONTENCODING_UTF32
+#elif SIZEOF_WCHAR_T == 2
+ #define WC_BSWAP wxUINT16_SWAP_ALWAYS
+ #define WC_ENC wxFONTENCODING_UTF16
+#else // sizeof(wchar_t) != 2 nor 4
+ // does this ever happen?
+ #error "Unknown sizeof(wchar_t): please report this to wx-dev@lists.wxwindows.org"
+#endif
+
// ----------------------------------------------------------------------------
// wxMBConv_iconv: encapsulates an iconv character set
// ----------------------------------------------------------------------------
virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
+ // classify this encoding as explained in wxMBConv::GetMBNulLen() comment
+ virtual size_t GetMBNulLen() const;
+
+ virtual wxMBConv *Clone() const
+ {
+ wxMBConv_iconv *p = new wxMBConv_iconv(m_name);
+ p->m_minMBCharWidth = m_minMBCharWidth;
+ return p;
+ }
+
bool IsOk() const
- { return (m2w != (iconv_t)-1) && (w2m != (iconv_t)-1); }
+ { 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;
private:
// the name (for iconv_open()) of a wide char charset -- if none is
// available on this machine, it will remain NULL
- static const char *ms_wcCharsetName;
+ static wxString ms_wcCharsetName;
// true if the wide char encoding we use (i.e. ms_wcCharsetName) has
// different endian-ness than the native one
static bool ms_wcNeedsSwap;
+
+
+ // name of the encoding handled by this conversion
+ wxString m_name;
+
+ // cached result of GetMBNulLen(); set to 0 meaning "unknown"
+ // initially
+ size_t m_minMBCharWidth;
};
-const char *wxMBConv_iconv::ms_wcCharsetName = NULL;
+// make the constructor available for unit testing
+WXDLLIMPEXP_BASE wxMBConv* new_wxMBConv_iconv( const wxChar* name )
+{
+ wxMBConv_iconv* result = new wxMBConv_iconv( name );
+ if ( !result->IsOk() )
+ {
+ delete result;
+ return 0;
+ }
+
+ return result;
+}
+
+wxString wxMBConv_iconv::ms_wcCharsetName;
bool wxMBConv_iconv::ms_wcNeedsSwap = false;
wxMBConv_iconv::wxMBConv_iconv(const wxChar *name)
+ : m_name(name)
{
- // Do it the hard way
- char cname[100];
- for (size_t i = 0; i < wxStrlen(name)+1; i++)
- cname[i] = (char) name[i];
+ 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 == NULL)
+ if ( ms_wcCharsetName.empty() )
{
- ms_wcNeedsSwap = false;
+ wxLogTrace(TRACE_STRCONV, _T("Looking for wide char codeset:"));
- // try charset with explicit bytesex info (e.g. "UCS-4LE"):
- ms_wcCharsetName = WC_NAME_BEST;
- m2w = iconv_open(ms_wcCharsetName, cname);
+#if wxUSE_FONTMAP
+ const wxChar **names = wxFontMapperBase::GetAllEncodingNames(WC_ENC);
+#else // !wxUSE_FONTMAP
+ static const wxChar *names_static[] =
+ {
+#if SIZEOF_WCHAR_T == 4
+ _T("UCS-4"),
+#elif SIZEOF_WCHAR_T = 2
+ _T("UCS-2"),
+#endif
+ NULL
+ };
+ const wxChar **names = names_static;
+#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
- if (m2w == (iconv_t)-1)
+ for ( ; *names && ms_wcCharsetName.empty(); ++names )
{
- // try charset w/o bytesex info (e.g. "UCS4")
- // and check for bytesex ourselves:
- ms_wcCharsetName = WC_NAME;
- m2w = iconv_open(ms_wcCharsetName, cname);
+ const wxString nameCS(*names);
- // last bet, try if it knows WCHAR_T pseudo-charset
- if (m2w == (iconv_t)-1)
- {
- ms_wcCharsetName = "WCHAR_T";
- m2w = iconv_open(ms_wcCharsetName, cname);
- }
+ // first try charset with explicit bytesex info (e.g. "UCS-4LE"):
+ wxString nameXE(nameCS);
+
+#ifdef WORDS_BIGENDIAN
+ nameXE += _T("BE");
+#else // little endian
+ nameXE += _T("LE");
+#endif
+
+ wxLogTrace(TRACE_STRCONV, _T(" trying charset \"%s\""),
+ nameXE.c_str());
- if (m2w != (iconv_t)-1)
+ m2w = iconv_open(nameXE.ToAscii(), cname);
+ if ( m2w == ICONV_T_INVALID )
{
- char buf[2], *bufPtr;
- wchar_t wbuf[2], *wbufPtr;
- size_t insz, outsz;
- size_t res;
-
- buf[0] = 'A';
- buf[1] = 0;
- wbuf[0] = 0;
- insz = 2;
- outsz = SIZEOF_WCHAR_T * 2;
- wbufPtr = wbuf;
- bufPtr = buf;
-
- res = iconv(m2w, ICONV_CHAR_CAST(&bufPtr), &insz,
- (char**)&wbufPtr, &outsz);
-
- if (ICONV_FAILED(res, insz))
- {
- ms_wcCharsetName = NULL;
- wxLogLastError(wxT("iconv"));
- wxLogError(_("Conversion to charset '%s' doesn't work."), name);
- }
- else
+ // try charset w/o bytesex info (e.g. "UCS4")
+ wxLogTrace(TRACE_STRCONV, _T(" trying charset \"%s\""),
+ nameCS.c_str());
+ m2w = iconv_open(nameCS.ToAscii(), cname);
+
+ // and check for bytesex ourselves:
+ if ( m2w != ICONV_T_INVALID )
{
- ms_wcNeedsSwap = wbuf[0] != (wchar_t)buf[0];
+ char buf[2], *bufPtr;
+ wchar_t wbuf[2], *wbufPtr;
+ size_t insz, outsz;
+ size_t res;
+
+ buf[0] = 'A';
+ buf[1] = 0;
+ wbuf[0] = 0;
+ insz = 2;
+ outsz = SIZEOF_WCHAR_T * 2;
+ wbufPtr = wbuf;
+ bufPtr = buf;
+
+ res = iconv(
+ m2w, ICONV_CHAR_CAST(&bufPtr), &insz,
+ (char**)&wbufPtr, &outsz);
+
+ if (ICONV_FAILED(res, insz))
+ {
+ wxLogLastError(wxT("iconv"));
+ wxLogError(_("Conversion to charset '%s' doesn't work."),
+ nameCS.c_str());
+ }
+ else // ok, can convert to this encoding, remember it
+ {
+ ms_wcCharsetName = nameCS;
+ ms_wcNeedsSwap = wbuf[0] != (wchar_t)buf[0];
+ }
}
}
- else
+ else // use charset not requiring byte swapping
{
- ms_wcCharsetName = NULL;
-
- // VS: we must not output an error here, since wxWidgets will safely
- // fall back to using wxEncodingConverter.
- wxLogTrace(wxT("strconv"), wxT("Impossible to convert to/from charset '%s' with iconv, falling back to wxEncodingConverter."), name);
- //wxLogError(
+ ms_wcCharsetName = nameXE;
}
}
- wxLogTrace(wxT("strconv"), wxT("wchar_t charset is '%s', needs swap: %i"), ms_wcCharsetName, ms_wcNeedsSwap);
+
+ wxLogTrace(TRACE_STRCONV,
+ wxT("iconv wchar_t charset is \"%s\"%s"),
+ ms_wcCharsetName.empty() ? _T("<none>")
+ : ms_wcCharsetName.c_str(),
+ ms_wcNeedsSwap ? _T(" (needs swap)")
+ : _T(""));
}
else // we already have ms_wcCharsetName
{
- m2w = iconv_open(ms_wcCharsetName, cname);
+ m2w = iconv_open(ms_wcCharsetName.ToAscii(), cname);
}
- // NB: don't ever pass NULL to iconv_open(), it may crash!
- if ( ms_wcCharsetName )
+ if ( ms_wcCharsetName.empty() )
{
- w2m = iconv_open( cname, ms_wcCharsetName);
+ w2m = ICONV_T_INVALID;
}
else
{
- w2m = (iconv_t)-1;
+ w2m = iconv_open(cname, ms_wcCharsetName.ToAscii());
+ if ( w2m == ICONV_T_INVALID )
+ {
+ wxLogTrace(TRACE_STRCONV,
+ wxT("\"%s\" -> \"%s\" works but not the converse!?"),
+ ms_wcCharsetName.c_str(), cname.data());
+ }
}
}
wxMBConv_iconv::~wxMBConv_iconv()
{
- if ( m2w != (iconv_t)-1 )
+ if ( m2w != ICONV_T_INVALID )
iconv_close(m2w);
- if ( w2m != (iconv_t)-1 )
+ if ( w2m != ICONV_T_INVALID )
iconv_close(w2m);
}
size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
{
+ // find the string length: notice that must be done differently for
+ // NUL-terminated strings and UTF-16/32 which are terminated with 2/4 NULs
+ size_t inbuf;
+ const size_t nulLen = GetMBNulLen();
+ switch ( nulLen )
+ {
+ default:
+ return wxCONV_FAILED;
+
+ case 1:
+ inbuf = strlen(psz); // arguably more optimized than our version
+ break;
+
+ case 2:
+ case 4:
+ // for UTF-16/32 not only we need to have 2/4 consecutive NULs but
+ // they also have to start at character boundary and not span two
+ // adjacent characters
+ const char *p;
+ for ( p = psz; NotAllNULs(p, nulLen); p += nulLen )
+ ;
+ inbuf = p - psz;
+ break;
+ }
+
#if wxUSE_THREADS
- // NB: iconv() is MT-safe, but each thread must use it's own iconv_t handle.
- // Unfortunately there is a couple of global wxCSConv objects such as
+ // NB: iconv() is MT-safe, but each thread must use its own iconv_t handle.
+ // Unfortunately there are a couple of global wxCSConv objects such as
// wxConvLocal that are used all over wx code, so we have to make sure
// the handle is used by at most one thread at the time. Otherwise
// only a few wx classes would be safe to use from non-main threads
// as MB<->WC conversion would fail "randomly".
wxMutexLocker lock(wxConstCast(this, wxMBConv_iconv)->m_iconvMutex);
-#endif
-
- size_t inbuf = strlen(psz);
+#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:
if (ms_wcNeedsSwap)
{
// convert to native endianness
- WC_BSWAP(buf /* _not_ bufPtr */, res)
+ for ( unsigned i = 0; i < res; i++ )
+ 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;
}
// 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(wxT("strconv"), wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode()));
- return (size_t)-1;
+ wxLogTrace(TRACE_STRCONV, wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode()));
+ return wxCONV_FAILED;
}
return res;
// NB: explained in MB2WC
wxMutexLocker lock(wxConstCast(this, wxMBConv_iconv)->m_iconvMutex);
#endif
-
- size_t inbuf = wxWcslen(psz) * SIZEOF_WCHAR_T;
+
+ size_t inlen = wxWcslen(psz);
+ size_t inbuf = inlen * SIZEOF_WCHAR_T;
size_t outbuf = n;
size_t res, cres;
if (ms_wcNeedsSwap)
{
// need to copy to temp buffer to switch endianness
- // this absolutely doesn't rock!
- // (no, doing WC_BSWAP twice on the original buffer won't help, as it
+ // (doing WC_BSWAP twice on the original buffer won't help, as it
// could be in read-only memory, or be accessed in some other thread)
- tmpbuf=(wchar_t*)malloc((inbuf+1)*SIZEOF_WCHAR_T);
- memcpy(tmpbuf,psz,(inbuf+1)*SIZEOF_WCHAR_T);
- WC_BSWAP(tmpbuf, inbuf)
- psz=tmpbuf;
+ tmpbuf = (wchar_t *)malloc(inbuf + SIZEOF_WCHAR_T);
+ for ( size_t i = 0; i < inlen; i++ )
+ tmpbuf[n] = WC_BSWAP(psz[i]);
+
+ tmpbuf[inlen] = L'\0';
+ psz = tmpbuf;
}
if (buf)
// have destination buffer, convert there
cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf );
- res = n-outbuf;
+ 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
}
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)
if (ICONV_FAILED(cres, inbuf))
{
- //VS: it is ok if iconv fails, hence trace only
- wxLogTrace(wxT("strconv"), wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode()));
- return (size_t)-1;
+ wxLogTrace(TRACE_STRCONV, wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode()));
+ return wxCONV_FAILED;
}
return res;
}
+size_t wxMBConv_iconv::GetMBNulLen() const
+{
+ if ( m_minMBCharWidth == 0 )
+ {
+ wxMBConv_iconv * const self = wxConstCast(this, wxMBConv_iconv);
+
+#if wxUSE_THREADS
+ // NB: explained in MB2WC
+ wxMutexLocker lock(self->m_iconvMutex);
+#endif
+
+ wchar_t *wnul = L"";
+ char buf[8]; // should be enough for NUL in any encoding
+ size_t inLen = sizeof(wchar_t),
+ outLen = WXSIZEOF(buf);
+ char *inBuff = (char *)wnul;
+ char *outBuff = buf;
+ if ( iconv(w2m, ICONV_CHAR_CAST(&inBuff), &inLen, &outBuff, &outLen) == (size_t)-1 )
+ {
+ self->m_minMBCharWidth = (size_t)-1;
+ }
+ else // ok
+ {
+ self->m_minMBCharWidth = outBuff - buf;
+ }
+ }
+
+ return m_minMBCharWidth;
+}
+
#endif // HAVE_ICONV
wxMBConv_win32()
{
m_CodePage = CP_ACP;
+ m_minMBCharWidth = 0;
+ }
+
+ wxMBConv_win32(const wxMBConv_win32& conv)
+ : wxMBConv()
+ {
+ m_CodePage = conv.m_CodePage;
+ m_minMBCharWidth = conv.m_minMBCharWidth;
}
#if wxUSE_FONTMAP
wxMBConv_win32(const wxChar* name)
{
m_CodePage = wxCharsetToCodepage(name);
+ m_minMBCharWidth = 0;
}
wxMBConv_win32(wxFontEncoding encoding)
{
m_CodePage = wxEncodingToCodepage(encoding);
+ m_minMBCharWidth = 0;
}
-#endif
+#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)
// wouldn't work if reading an incomplete MB char didn't result in an
// error
//
- // note however that using MB_ERR_INVALID_CHARS with CP_UTF7 results in
- // an error (tested under Windows Server 2003) and apparently it is
- // done on purpose, i.e. the function accepts any input in this case
- // and although I'd prefer to return error on ill-formed output, our
- // own wxMBConvUTF7 doesn't detect errors (e.g. lone "+" which is
- // explicitly ill-formed according to RFC 2152) neither so we don't
- // even have any fallback here...
- int flags = m_CodePage == CP_UTF7 ? 0 : MB_ERR_INVALID_CHARS;
+ // Moreover, MB_ERR_INVALID_CHARS is only supported on Win 2K SP4 or
+ // Win XP or newer and it is not supported for UTF-[78] so we always
+ // use our own conversions in this case. See
+ // http://blogs.msdn.com/michkap/archive/2005/04/19/409566.aspx
+ // http://msdn.microsoft.com/library/en-us/intl/unicode_17si.asp
+ if ( m_CodePage == CP_UTF8 )
+ {
+ return wxConvUTF8.MB2WC(buf, psz, n);
+ }
+
+ if ( m_CodePage == CP_UTF7 )
+ {
+ return wxConvUTF7.MB2WC(buf, psz, n);
+ }
+
+ int flags = 0;
+ if ( (m_CodePage < 50000 && m_CodePage != CP_SYMBOL) &&
+ IsAtLeastWin2kSP4() )
+ {
+ flags = MB_ERR_INVALID_CHARS;
+ }
const size_t len = ::MultiByteToWideChar
(
buf, // output string
buf ? n : 0 // size of output buffer
);
+ if ( !len )
+ {
+ // function totally failed
+ return wxCONV_FAILED;
+ }
+
+ // if we were really converting and didn't use MB_ERR_INVALID_CHARS,
+ // check if we succeeded, by doing a double trip:
+ if ( !flags && buf )
+ {
+ const size_t mbLen = strlen(psz);
+ wxCharBuffer mbBuf(mbLen);
+ if ( ::WideCharToMultiByte
+ (
+ m_CodePage,
+ 0,
+ buf,
+ -1,
+ mbBuf.data(),
+ mbLen + 1, // size in bytes, not length
+ NULL,
+ NULL
+ ) == 0 ||
+ strcmp(mbBuf, psz) != 0 )
+ {
+ // we didn't obtain the same thing we started from, hence
+ // the conversion was lossy and we consider that it failed
+ return wxCONV_FAILED;
+ }
+ }
// note that it returns count of written chars for buf != NULL and size
// of the needed buffer for buf == NULL so in either case the length of
// the string (which never includes the terminating NUL) is one less
- return len ? len - 1 : (size_t)-1;
+ 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
if ( !len )
{
// function totally failed
- return (size_t)-1;
+ return wxCONV_FAILED;
}
// if we were really converting, check if we succeeded
// 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;
}
}
}
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:
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;
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") );
return s_isWin98Or2k == 1;
}
+ static bool IsAtLeastWin2kSP4()
+ {
+#ifdef __WXWINCE__
+ return false;
+#else
+ static int s_isAtLeastWin2kSP4 = -1;
+
+ if ( s_isAtLeastWin2kSP4 == -1 )
+ {
+ OSVERSIONINFOEX ver;
+
+ memset(&ver, 0, sizeof(ver));
+ ver.dwOSVersionInfoSize = sizeof(ver);
+ GetVersionEx((OSVERSIONINFO*)&ver);
+
+ s_isAtLeastWin2kSP4 =
+ ((ver.dwMajorVersion > 5) || // Vista+
+ (ver.dwMajorVersion == 5 && ver.dwMinorVersion > 0) || // XP/2003
+ (ver.dwMajorVersion == 5 && ver.dwMinorVersion == 0 &&
+ ver.wServicePackMajor >= 4)) // 2000 SP4+
+ ? 1 : 0;
+ }
+
+ return s_isAtLeastWin2kSP4 == 1;
+#endif
+ }
+
+
+ // the code page we're working with
long m_CodePage;
+
+ // cached result of GetMBNulLen(), set to 0 initially meaning
+ // "unknown"
+ size_t m_minMBCharWidth;
};
#endif // wxHAVE_WIN32_MB2WC
#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 <CoreFoundation/CFString.h>
#include <CoreFoundation/CFStringEncodingExt.h>
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 ;
// break ;
case wxFONTENCODING_CP437 :
- enc =kCFStringEncodingDOSLatinUS ;
+ enc = kCFStringEncodingDOSLatinUS ;
break ;
case wxFONTENCODING_CP850 :
enc = kCFStringEncodingDOSLatin1;
enc = kCFStringEncodingDOSCyrillic;
break ;
case wxFONTENCODING_CP866 :
- enc =kCFStringEncodingDOSRussian ;
+ enc = kCFStringEncodingDOSRussian ;
break ;
case wxFONTENCODING_CP874 :
enc = kCFStringEncodingDOSThai;
enc = kCFStringEncodingDOSJapanese;
break ;
case wxFONTENCODING_CP936 :
- enc =kCFStringEncodingDOSChineseSimplif ;
+ enc = kCFStringEncodingDOSChineseSimplif ;
break ;
case wxFONTENCODING_CP949 :
enc = kCFStringEncodingDOSKorean;
enc = kCFStringEncodingWindowsLatin2;
break ;
case wxFONTENCODING_CP1251 :
- enc =kCFStringEncodingWindowsCyrillic ;
+ enc = kCFStringEncodingWindowsCyrillic ;
break ;
case wxFONTENCODING_CP1252 :
- enc =kCFStringEncodingWindowsLatin1 ;
+ enc = kCFStringEncodingWindowsLatin1 ;
break ;
case wxFONTENCODING_CP1253 :
enc = kCFStringEncodingWindowsGreek;
enc = kCFStringEncodingWindowsLatin5;
break ;
case wxFONTENCODING_CP1255 :
- enc =kCFStringEncodingWindowsHebrew ;
+ enc = kCFStringEncodingWindowsHebrew ;
break ;
case wxFONTENCODING_CP1256 :
- enc =kCFStringEncodingWindowsArabic ;
+ enc = kCFStringEncodingWindowsArabic ;
break ;
case wxFONTENCODING_CP1257 :
enc = kCFStringEncodingWindowsBalticRim;
// case wxFONTENCODING_MACKEYBOARD :
// enc = kCFStringEncodingMacKeyboardGlyphs ;
// break ;
+
default :
// because gcc is picky
break ;
- } ;
+ }
+
return enc ;
}
Init(CFStringGetSystemEncoding()) ;
}
+ wxMBConv_cocoa(const wxMBConv_cocoa& conv)
+ {
+ m_encoding = conv.m_encoding;
+ }
+
#if wxUSE_FONTMAP
wxMBConv_cocoa(const wxChar* name)
{
Init( wxCFStringEncFromFontEnc(encoding) );
}
- ~wxMBConv_cocoa()
+ virtual ~wxMBConv_cocoa()
{
}
#if SIZEOF_WCHAR_T == 4
UniChar* szUniCharBuffer = new UniChar[nOutSize];
#endif
-
+
CFStringGetCharacters(theString, theRange, szUniCharBuffer);
-
+
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;
}
size_t WC2MB(char *szOut, const wchar_t *szUnConv, size_t nOutSize) const
{
wxASSERT(szUnConv);
-
+
size_t nRealOutSize;
size_t nBufSize = wxWcslen(szUnConv);
UniChar* szUniBuffer = (UniChar*) szUnConv;
#if SIZEOF_WCHAR_T == 4
- wxMBConvUTF16BE converter ;
- nBufSize = converter.WC2MB( NULL , szUnConv , 0 );
- szUniBuffer = new UniChar[ (nBufSize / sizeof(UniChar)) + 1] ;
- converter.WC2MB( (char*) szUniBuffer , szUnConv, nBufSize + sizeof(UniChar)) ;
+ 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
{
if (szOut != NULL)
CFStringGetCharacters(theString, CFRangeMake(0, nOutSize - 1), (UniChar*) szOut);
-
+
nRealOutSize = CFStringGetLength(theString) + 1;
}
else
//0 tells CFString to return NULL if it meets such a character
false, //not an external representation
(UInt8*) szOut,
- nOutSize,
+ nOutSize,
(CFIndex*) &nRealOutSize
);
}
return nRealOutSize - 1;
}
+ virtual wxMBConv *Clone() const { return new wxMBConv_cocoa(*this); }
+
bool IsOk() const
{
- return m_encoding != kCFStringEncodingInvalidId &&
+ return m_encoding != kCFStringEncodingInvalidId &&
CFStringIsEncodingAvailable(m_encoding);
}
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
Init( wxMacGetSystemEncFromFontEnc(encoding) );
}
- ~wxMBConv_mac()
+ virtual ~wxMBConv_mac()
{
OSStatus status = noErr ;
- status = TECDisposeConverter(m_MB2WC_converter);
- status = TECDisposeConverter(m_WC2MB_converter);
+ if (m_MB2WC_converter)
+ status = TECDisposeConverter(m_MB2WC_converter);
+ if (m_WC2MB_converter)
+ status = TECDisposeConverter(m_WC2MB_converter);
}
-
- void Init( TextEncodingBase encoding)
+ void Init( TextEncodingBase encoding,TextEncodingVariant encodingVariant = kTextEncodingDefaultVariant ,
+ TextEncodingFormat encodingFormat = kTextEncodingDefaultFormat)
{
- OSStatus status = noErr ;
- m_char_encoding = encoding ;
- m_unicode_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode16BitFormat) ;
+ m_MB2WC_converter = NULL ;
+ m_WC2MB_converter = NULL ;
+ m_char_encoding = CreateTextEncoding(encoding, encodingVariant, encodingFormat) ;
+ m_unicode_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault, 0, kUnicode16BitFormat) ;
+ }
- status = TECCreateConverter(&m_MB2WC_converter,
+ 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);
- status = TECCreateConverter(&m_WC2MB_converter,
+ 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) ;
+ 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 ;
- wxMBConvUTF16BE converter ;
- res = converter.MB2WC( (buf ? buf : tbuf) , (const char*)ubuf , n ) ;
+ 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) ;
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 ;
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
- wxMBConvUTF16BE converter ;
- size_t unicharlen = converter.WC2MB( NULL , psz , 0 ) ;
+ wxMBConvUTF16 converter ;
+ 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) ;
if ( buf && res < n)
{
buf[res] = 0;
-
+
//we need to double-trip to verify it didn't insert any ? in place
//of bogus characters
wxWCharBuffer wcBuf(n);
size_t pszlen = wxWcslen(psz);
- if ( MB2WC(wcBuf.data(), buf, n) == (size_t)-1 ||
+ 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 ; }
+ {
+ CreateIfNeeded() ;
+ return m_MB2WC_converter != NULL && m_WC2MB_converter != NULL;
+ }
-private:
- TECObjectRef m_MB2WC_converter ;
- TECObjectRef m_WC2MB_converter ;
+protected :
+ mutable TECObjectRef m_MB2WC_converter;
+ mutable TECObjectRef m_WC2MB_converter;
- TextEncodingBase m_char_encoding ;
- TextEncodingBase m_unicode_encoding ;
+ TextEncodingBase m_char_encoding;
+ TextEncodingBase m_unicode_encoding;
};
+// MB is decomposed (D) normalized UTF8
+
+class wxMBConv_macUTF8D : public wxMBConv_mac
+{
+public :
+ wxMBConv_macUTF8D()
+ {
+ Init( kTextEncodingUnicodeDefault , kUnicodeNoSubset , kUnicodeUTF8Format ) ;
+ m_uni = NULL;
+ m_uniBack = NULL ;
+ }
+
+ virtual ~wxMBConv_macUTF8D()
+ {
+ if (m_uni!=NULL)
+ DisposeUnicodeToTextInfo(&m_uni);
+ if (m_uniBack!=NULL)
+ DisposeUnicodeToTextInfo(&m_uniBack);
+ }
+
+ size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const
+ {
+ CreateIfNeeded() ;
+ OSStatus status = noErr ;
+ ByteCount byteOutLen ;
+ ByteCount byteInLen = wxWcslen(psz) * SIZEOF_WCHAR_T ;
+
+ char *tbuf = NULL ;
+
+ if (buf == NULL)
+ {
+ // Apple specs say at least 32
+ n = wxMax( 32, ((byteInLen / SIZEOF_WCHAR_T) * 8) + SIZEOF_WCHAR_T );
+ tbuf = (char*) malloc( n ) ;
+ }
+
+ ByteCount byteBufferLen = n ;
+ UniChar* ubuf = NULL ;
+
+#if SIZEOF_WCHAR_T == 4
+ wxMBConvUTF16 converter ;
+ size_t unicharlen = converter.WC2MB( NULL, psz, 0 ) ;
+ byteInLen = unicharlen ;
+ ubuf = (UniChar*) malloc( byteInLen + 2 ) ;
+ converter.WC2MB( (char*) ubuf, psz, unicharlen + 2 ) ;
+#else
+ ubuf = (UniChar*) psz ;
+#endif
+
+ // ubuf is a non-decomposed UniChar buffer
+
+ ByteCount dcubuflen = byteInLen * 2 + 2 ;
+ ByteCount dcubufread , dcubufwritten ;
+ UniChar *dcubuf = (UniChar*) malloc( dcubuflen ) ;
+
+ ConvertFromUnicodeToText( m_uni , byteInLen , ubuf ,
+ kUnicodeDefaultDirectionMask, 0, NULL, NULL, NULL, dcubuflen , &dcubufread , &dcubufwritten , dcubuf ) ;
+
+ // we now convert that decomposed buffer into UTF8
+
+ status = TECConvertText(
+ m_WC2MB_converter, (ConstTextPtr) dcubuf, dcubufwritten, &dcubufread,
+ (TextPtr) (buf ? buf : tbuf), byteBufferLen, &byteOutLen);
+
+ free( dcubuf );
+
+#if SIZEOF_WCHAR_T == 4
+ free( ubuf ) ;
+#endif
+
+ if ( buf == NULL )
+ free(tbuf) ;
+
+ size_t res = byteOutLen ;
+ if ( buf && res < n)
+ {
+ buf[res] = 0;
+ // don't test for round-trip fidelity yet, we cannot guarantee it yet
+ }
+
+ return res ;
+ }
+
+ size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const
+ {
+ CreateIfNeeded() ;
+ OSStatus status = noErr ;
+ ByteCount byteOutLen ;
+ ByteCount byteInLen = strlen(psz) + 1;
+ wchar_t *tbuf = NULL ;
+ UniChar* ubuf = NULL ;
+ size_t res = 0 ;
+
+ if (buf == NULL)
+ {
+ // Apple specs say at least 32
+ n = wxMax( 32, byteInLen ) ;
+ tbuf = (wchar_t*) malloc( n * SIZEOF_WCHAR_T ) ;
+ }
+
+ ByteCount byteBufferLen = n * sizeof( UniChar ) ;
+
+#if SIZEOF_WCHAR_T == 4
+ ubuf = (UniChar*) malloc( byteBufferLen + 2 ) ;
+#else
+ ubuf = (UniChar*) (buf ? buf : tbuf) ;
+#endif
+
+ ByteCount dcubuflen = byteBufferLen * 2 + 2 ;
+ ByteCount dcubufread , dcubufwritten ;
+ UniChar *dcubuf = (UniChar*) malloc( dcubuflen ) ;
+
+ status = TECConvertText(
+ m_MB2WC_converter, (ConstTextPtr) psz, byteInLen, &byteInLen,
+ (TextPtr) dcubuf, dcubuflen, &byteOutLen);
+ // we have to terminate here, because n might be larger for the trailing zero, and if UniChar
+ // is not properly terminated we get random characters at the end
+ dcubuf[byteOutLen / sizeof( UniChar ) ] = 0 ;
+
+ // now from the decomposed UniChar to properly composed uniChar
+ ConvertFromUnicodeToText( m_uniBack , byteOutLen , dcubuf ,
+ kUnicodeDefaultDirectionMask, 0, NULL, NULL, NULL, dcubuflen , &dcubufread , &dcubufwritten , ubuf ) ;
+
+ free( dcubuf );
+ byteOutLen = dcubufwritten ;
+ ubuf[byteOutLen / sizeof( UniChar ) ] = 0 ;
+
+
+#if SIZEOF_WCHAR_T == 4
+ wxMBConvUTF16 converter ;
+ res = converter.MB2WC( (buf ? buf : tbuf), (const char*)ubuf, n ) ;
+ free( ubuf ) ;
+#else
+ res = byteOutLen / sizeof( UniChar ) ;
+#endif
+
+ if ( buf == NULL )
+ free(tbuf) ;
+
+ if ( buf && res < n)
+ buf[res] = 0;
+
+ return res ;
+ }
+
+ virtual void CreateIfNeeded() const
+ {
+ wxMBConv_mac::CreateIfNeeded() ;
+ if ( m_uni == NULL )
+ {
+ m_map.unicodeEncoding = CreateTextEncoding(kTextEncodingUnicodeDefault,
+ kUnicodeNoSubset, kTextEncodingDefaultFormat);
+ m_map.otherEncoding = CreateTextEncoding(kTextEncodingUnicodeDefault,
+ kUnicodeCanonicalDecompVariant, kTextEncodingDefaultFormat);
+ m_map.mappingVersion = kUnicodeUseLatestMapping;
+
+ OSStatus err = CreateUnicodeToTextInfo(&m_map, &m_uni);
+ wxASSERT_MSG( err == noErr , _(" Couldn't create the UnicodeConverter")) ;
+
+ m_map.unicodeEncoding = CreateTextEncoding(kTextEncodingUnicodeDefault,
+ kUnicodeNoSubset, kTextEncodingDefaultFormat);
+ m_map.otherEncoding = CreateTextEncoding(kTextEncodingUnicodeDefault,
+ kUnicodeCanonicalCompVariant, kTextEncodingDefaultFormat);
+ m_map.mappingVersion = kUnicodeUseLatestMapping;
+ err = CreateUnicodeToTextInfo(&m_map, &m_uniBack);
+ wxASSERT_MSG( err == noErr , _(" Couldn't create the UnicodeConverter")) ;
+ }
+ }
+protected :
+ mutable UnicodeToTextInfo m_uni;
+ mutable UnicodeToTextInfo m_uniBack;
+ mutable UnicodeMapping m_map;
+};
#endif // defined(__WXMAC__) && defined(TARGET_CARBON)
// ============================================================================
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;
}
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;
}
+ virtual size_t GetMBNulLen() const
+ {
+ switch ( m_enc )
+ {
+ case wxFONTENCODING_UTF16BE:
+ case wxFONTENCODING_UTF16LE:
+ return 2;
+
+ case wxFONTENCODING_UTF32BE:
+ case wxFONTENCODING_UTF32LE:
+ return 4;
+
+ default:
+ return 1;
+ }
+ }
+
+ virtual wxMBConv *Clone() const { return new wxMBConv_wxwin(m_enc); }
+
bool IsOk() const { return m_ok; }
public:
wxFontEncoding m_enc;
wxEncodingConverter m2w, w2m;
+private:
// were we initialized successfully?
bool m_ok;
DECLARE_NO_COPY_CLASS(wxMBConv_wxwin)
};
+// make the constructors available for unit testing
+WXDLLIMPEXP_BASE wxMBConv* new_wxMBConv_wxwin( const wxChar* name )
+{
+ wxMBConv_wxwin* result = new wxMBConv_wxwin( name );
+ if ( !result->IsOk() )
+ {
+ delete result;
+ return 0;
+ }
+
+ return result;
+}
+
#endif // wxUSE_FONTMAP
// ============================================================================
SetName(charset);
}
+#if wxUSE_FONTMAP
+ m_encoding = wxFontMapperBase::GetEncodingFromName(charset);
+#else
m_encoding = wxFONTENCODING_SYSTEM;
+#endif
}
wxCSConv::wxCSConv(wxFontEncoding encoding)
}
}
+#if wxUSE_FONTMAP
+
+WX_DECLARE_HASH_MAP( wxFontEncoding, wxString, wxIntegerHash, wxIntegerEqual,
+ wxEncodingNameCache );
+
+static wxEncodingNameCache gs_nameCache;
+#endif
+
wxMBConv *wxCSConv::DoCreate() const
{
+#if wxUSE_FONTMAP
+ wxLogTrace(TRACE_STRCONV,
+ wxT("creating conversion for %s"),
+ (m_name ? m_name
+ : wxFontMapperBase::GetEncodingName(m_encoding).c_str()));
+#endif // wxUSE_FONTMAP
+
// check for the special case of ASCII or ISO8859-1 charset: as we have
// special knowledge of it anyhow, we don't need to create a special
// conversion object
- if ( m_encoding == wxFONTENCODING_ISO8859_1 )
+ if ( m_encoding == wxFONTENCODING_ISO8859_1 ||
+ m_encoding == wxFONTENCODING_DEFAULT )
{
// don't convert at all
return NULL;
#endif // !wxUSE_FONTMAP
{
wxString name(m_name);
+#if wxUSE_FONTMAP
+ wxFontEncoding encoding(m_encoding);
+#endif
+
+ if ( !name.empty() )
+ {
+ wxMBConv_iconv *conv = new wxMBConv_iconv(name);
+ if ( conv->IsOk() )
+ return conv;
+
+ delete conv;
#if wxUSE_FONTMAP
- if ( name.empty() )
- name = wxFontMapperBase::Get()->GetEncodingName(m_encoding);
+ encoding =
+ wxFontMapperBase::Get()->CharsetToEncoding(name, false);
#endif // wxUSE_FONTMAP
+ }
+#if wxUSE_FONTMAP
+ {
+ const wxEncodingNameCache::iterator it = gs_nameCache.find(encoding);
+ if ( it != gs_nameCache.end() )
+ {
+ if ( it->second.empty() )
+ return NULL;
- wxMBConv_iconv *conv = new wxMBConv_iconv(name);
- if ( conv->IsOk() )
- return conv;
+ wxMBConv_iconv *conv = new wxMBConv_iconv(it->second);
+ if ( conv->IsOk() )
+ return conv;
- delete conv;
+ delete conv;
+ }
+
+ const wxChar** names = wxFontMapperBase::GetAllEncodingNames(encoding);
+ // CS : in case this does not return valid names (eg for MacRoman) encoding
+ // got a 'failure' entry in the cache all the same, although it just has to
+ // be created using a different method, so only store failed iconv creation
+ // attempts (or perhaps we shoulnd't do this at all ?)
+ if ( names[0] != NULL )
+ {
+ for ( ; *names; ++names )
+ {
+ wxMBConv_iconv *conv = new wxMBConv_iconv(*names);
+ if ( conv->IsOk() )
+ {
+ gs_nameCache[encoding] = *names;
+ return conv;
+ }
+
+ delete conv;
+ }
+
+ gs_nameCache[encoding] = _T(""); // cache the failure
+ }
+ }
+#endif // wxUSE_FONTMAP
}
#endif // HAVE_ICONV
#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 ||
+ 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);
}
}
#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;
default:
// nothing to do but put here to suppress gcc warnings
- ;
+ break;
}
// step (3)
// NB: This is a hack to prevent deadlock. What could otherwise happen
// in Unicode build: wxConvLocal creation ends up being here
// because of some failure and logs the error. But wxLog will try to
- // attach timestamp, for which it will need wxConvLocal (to convert
- // time to char* and then wchar_t*), but that fails, tries to log
- // error, but wxLog has a (already locked) critical section that
- // guards static buffer.
+ // 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)
{
#if wxUSE_FONTMAP
wxFontMapperBase::GetEncodingDescription(m_encoding).c_str()
#else // !wxUSE_FONTMAP
- wxString::Format(_("encoding %s"), m_encoding).c_str()
+ wxString::Format(_("encoding %i"), m_encoding).c_str()
#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
);
+
alreadyLoggingError = false;
}
{
wxCSConv *self = (wxCSConv *)this; // const_cast
-#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 )
{
+#if wxUSE_INTL
self->m_name = wxStrdup(wxLocale::GetSystemEncodingName());
- }
+#else
+ // fallback to some reasonable default:
+ self->m_encoding = wxFONTENCODING_ISO8859_1;
#endif // wxUSE_INTL
+ }
self->m_convReal = DoCreate();
self->m_deferred = false;
}
}
+size_t wxCSConv::ToWChar(wchar_t *dst, size_t dstLen,
+ const char *src, size_t srcLen) const
+{
+ CreateConvIfNeeded();
+
+ if (m_convReal)
+ return m_convReal->ToWChar(dst, dstLen, src, srcLen);
+
+ // latin-1 (direct)
+ return wxMBConv::ToWChar(dst, dstLen, src, srcLen);
+}
+
+size_t wxCSConv::FromWChar(char *dst, size_t dstLen,
+ const wchar_t *src, size_t srcLen) const
+{
+ CreateConvIfNeeded();
+
+ if (m_convReal)
+ return m_convReal->FromWChar(dst, dstLen, src, srcLen);
+
+ // latin-1 (direct)
+ return wxMBConv::FromWChar(dst, dstLen, src, srcLen);
+}
+
size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
{
CreateConvIfNeeded();
for (size_t c = 0; c <= len; c++)
{
if (psz[c] > 0xFF)
- return (size_t)-1;
+ return wxCONV_FAILED;
+
buf[c] = (char)psz[c];
}
}
for (size_t c = 0; c <= len; c++)
{
if (psz[c] > 0xFF)
- return (size_t)-1;
+ return wxCONV_FAILED;
}
}
return len;
}
+size_t wxCSConv::GetMBNulLen() const
+{
+ CreateConvIfNeeded();
+
+ if ( m_convReal )
+ {
+ return m_convReal->GetMBNulLen();
+ }
+
+ return 1;
+}
+
// ----------------------------------------------------------------------------
// globals
// ----------------------------------------------------------------------------
static wxCSConv wxConvISO8859_1Obj(wxFONTENCODING_ISO8859_1);
static wxMBConvUTF7 wxConvUTF7Obj;
static wxMBConvUTF8 wxConvUTF8Obj;
-static wxConvBrokenFileNames wxConvBrokenFileNamesObj;
-
+#if defined(__WXMAC__) && defined(TARGET_CARBON)
+static wxMBConv_macUTF8D wxConvMacUTF8DObj;
+#endif
WXDLLIMPEXP_DATA_BASE(wxMBConv&) wxConvLibc = wxConvLibcObj;
WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvLocal = wxConvLocalObj;
WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvISO8859_1 = wxConvISO8859_1Obj;
WXDLLIMPEXP_DATA_BASE(wxMBConvUTF7&) wxConvUTF7 = wxConvUTF7Obj;
WXDLLIMPEXP_DATA_BASE(wxMBConvUTF8&) wxConvUTF8 = wxConvUTF8Obj;
WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent = &wxConvLibcObj;
+WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvUI = &wxConvLocal;
WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvFileName = &
#ifdef __WXOSX__
+#if defined(__WXMAC__) && defined(TARGET_CARBON)
+ wxConvMacUTF8DObj;
+#else
wxConvUTF8Obj;
-#elif __WXGTK20__
- wxConvBrokenFileNamesObj;
+#endif
#else
wxConvLibcObj;
#endif
-
#else // !wxUSE_WCHAR_T
// stand-ins in absence of wchar_t
wxConvUTF8;
#endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T
-
-
projects / wxWidgets.git / blobdiff