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#include "ts_locale.h"
#include "utils/builtins.h"
#include "utils/pg_locale.h"
#include "mb/pg_wchar.h"
#if defined(TS_USE_WIDE) && defined(WIN32)
size_t
wchar2char(char *to, const wchar_t *from, size_t len)
{
if (GetDatabaseEncoding() == PG_UTF8)
{
int r,
nbytes;
if (len == 0)
return 0;
/* in any case, *to should be allocated with enough space */
nbytes = WideCharToMultiByte(CP_UTF8, 0, from, len, NULL, 0, NULL, NULL);
if (nbytes == 0)
ereport(ERROR,
(errcode(ERRCODE_CHARACTER_NOT_IN_REPERTOIRE),
errmsg("UTF-16 to UTF-8 translation failed: %lu",
GetLastError())));
r = WideCharToMultiByte(CP_UTF8, 0, from, len, to, nbytes,
NULL, NULL);
if (r == 0)
ereport(ERROR,
(errcode(ERRCODE_CHARACTER_NOT_IN_REPERTOIRE),
errmsg("UTF-16 to UTF-8 translation failed: %lu",
GetLastError())));
return r;
}
return wcstombs(to, from, len);
}
size_t
char2wchar(wchar_t *to, const char *from, size_t len)
{
if (GetDatabaseEncoding() == PG_UTF8)
{
int r;
if (len == 0)
return 0;
r = MultiByteToWideChar(CP_UTF8, 0, from, len, to, len);
if (!r)
{
pg_verifymbstr(from, len, false);
ereport(ERROR,
(errcode(ERRCODE_CHARACTER_NOT_IN_REPERTOIRE),
errmsg("invalid multibyte character for locale"),
errhint("The server's LC_CTYPE locale is probably incompatible with the database encoding.")));
}
Assert(r <= len);
return r;
}
return mbstowcs(to, from, len);
}
#endif
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