Fossil

** to a file, -1 is returned and nothing is written
** to the console.
*/
int fossil_utf8_to_console(const char *zUtf8, int nByte, int toStdErr){
#ifdef _WIN32
  int nChar;
  wchar_t *zUnicode; /* Unicode version of zUtf8 */
#ifdef UNICODE
  DWORD dummy;
#else
  char *zConsole;    /* Console version of zUtf8 */
  int codepage;      /* Console code page */
#endif

  static int istty[2] = { -1, -1 };
  if( istty[toStdErr] == -1 ){
    istty[toStdErr] = _isatty(toStdErr + 1) != 0;
  }
  if( !istty[toStdErr] ){
    /* stdout/stderr is not a console. */

  }
  nChar = MultiByteToWideChar(CP_UTF8, 0, zUtf8, nByte, zUnicode, nChar);
  if( nChar==0 ){
    free(zUnicode);
    return 0;
  }
  zUnicode[nChar] = '\0';
#ifdef UNICODE
  WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE - toStdErr), zUnicode, nChar, &dummy, 0);
#else /* !UNICODE */
  codepage = GetConsoleCP();
  nByte = WideCharToMultiByte(codepage, 0, zUnicode, nChar, 0, 0, 0, 0);
  zConsole = malloc( nByte + 1);
  if( zConsole==0 ){
    free(zUnicode);
    return 0;
  }
  nByte = WideCharToMultiByte(codepage, 0, zUnicode, nChar, zConsole, nByte, 0, 0);
  zConsole[nByte] = '\0';
  free(zUnicode);
  if( nByte == 0 ){
    free(zConsole);
    zConsole = 0;
    return 0;
  }
  fwrite(zConsole, 1, nByte, toStdErr ? stderr : stdout);
  fflush(toStdErr ? stderr : stdout);
#endif /* UNICODE */
  return nChar;
#else
  return -1;  /* No-op on unix */
#endif
}

/*