#include "wx/strconv.h"
-#if wxUSE_WCHAR_T
-
#ifndef __WXWINCE__
#include <errno.h>
#endif
const size_t lenNul = GetMBNulLen();
for ( const wchar_t * const srcEnd = src + srcLen;
src < srcEnd;
- src += wxWcslen(src) + 1 /* skip L'\0' too */ )
+ src++ /* skip L'\0' too */ )
{
// try to convert the current chunk
size_t lenChunk = WC2MB(NULL, src, 0);
-
if ( lenChunk == wxCONV_FAILED )
return wxCONV_FAILED;
dstWritten += lenChunk;
- if ( src + lenChunk < srcEnd || isNulTerminated )
+
+ const wchar_t * const
+ chunkEnd = isNulTerminated ? srcEnd - 1 : src + wxWcslen(src);
+
+ // our return value accounts for the trailing NUL(s), unlike that of
+ // WC2MB(), however don't do it for the last NUL we artificially added
+ // ourselves above
+ if ( chunkEnd < srcEnd )
dstWritten += lenNul;
if ( dst )
if ( dstWritten > dstLen )
return wxCONV_FAILED;
- if ( WC2MB(dst, src, lenChunk + lenNul) == wxCONV_FAILED )
+ // if we know that there is enough space in the destination buffer
+ // (because we accounted for lenNul in dstWritten above), we can
+ // convert directly in place -- but otherwise we need another
+ // temporary buffer to ensure that we don't overwrite the output
+ wxCharBuffer dstBuf;
+ char *dstTmp;
+ if ( chunkEnd == srcEnd )
+ {
+ dstBuf = wxCharBuffer(lenChunk + lenNul - 1);
+ dstTmp = dstBuf.data();
+ }
+ else
+ {
+ dstTmp = dst;
+ }
+
+ if ( WC2MB(dstTmp, src, lenChunk + lenNul) == wxCONV_FAILED )
return wxCONV_FAILED;
+ if ( dstTmp != dst )
+ {
+ // copy everything up to but excluding the terminating NUL(s)
+ // into the real output buffer
+ memcpy(dst, dstTmp, lenChunk);
+
+ // micro-optimization: if dstTmp != dst it means that chunkEnd
+ // == srcEnd and so we're done, no need to update anything below
+ break;
+ }
+
dst += lenChunk;
- if ( src + lenChunk < srcEnd || isNulTerminated )
+ if ( chunkEnd < srcEnd )
dst += lenNul;
}
+
+ src = chunkEnd;
}
return dstWritten;
wxLogTrace(TRACE_STRCONV, wxT("Looking for wide char codeset:"));
#if wxUSE_FONTMAP
- const wxChar **names = wxFontMapperBase::GetAllEncodingNames(WC_ENC);
+ const wxChar *const *names = wxFontMapperBase::GetAllEncodingNames(WC_ENC);
#else // !wxUSE_FONTMAP
- static const wxChar *names_static[] =
+ static const wxChar *const names_static[] =
{
#if SIZEOF_WCHAR_T == 4
wxT("UCS-4"),
#endif
NULL
};
- const wxChar **names = names_static;
+ const wxChar *const *names = names_static;
#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
for ( ; *names && ms_wcCharsetName.empty(); ++names )
void wxCSConv::Clear()
{
free(m_name);
- delete m_convReal;
+ wxDELETE(m_convReal);
m_name = NULL;
- m_convReal = NULL;
}
void wxCSConv::SetName(const char *charset)
delete conv;
}
- const wxChar** names = wxFontMapperBase::GetAllEncodingNames(encoding);
+ const wxChar* const* names = wxFontMapperBase::GetAllEncodingNames(encoding);
// CS : in case this does not return valid names (eg for MacRoman)
// encoding got a 'failure' entry in the cache all the same,
// although it just has to be created using a different method, so
#else // !__DARWIN__
wxGet_wxConvLibcPtr();
#endif // __DARWIN__/!__DARWIN__
-
-#else // !wxUSE_WCHAR_T
-
-// FIXME-UTF8: remove this, wxUSE_WCHAR_T is required now
-// stand-ins in absence of wchar_t
-WXDLLIMPEXP_DATA_BASE(wxMBConv) wxConvLibc,
- wxConvISO8859_1,
- wxConvLocal,
- wxConvUTF8;
-
-#endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T