int getopt()

in ftl_app/win32/xgetopt.c [152:213]

• 53 lines of code
• 16 McCabe index (conditional complexity)

int getopt(int argc, TCHAR *argv[], TCHAR *optstring)
{
  static TCHAR *next = NULL;
  if (optind == 0)
    next = NULL;

  optarg = NULL;

  if (next == NULL || *next == _T('\0'))
  {
    if (optind == 0)
      optind++;

    if (optind >= argc || argv[optind][0] != _T('-') || argv[optind][1] == _T('\0'))
    {
      optarg = NULL;
      if (optind < argc)
        optarg = argv[optind];
      return EOF;
    }

    if (_tcscmp(argv[optind], _T("--")) == 0)
    {
      optind++;
      optarg = NULL;
      if (optind < argc)
        optarg = argv[optind];
      return EOF;
    }

    next = argv[optind];
    next++;    // skip past -
    optind++;
  }

  TCHAR c = *next++;
  TCHAR *cp = _tcschr(optstring, c);

  if (cp == NULL || c == _T(':'))
    return _T('?');

  cp++;
  if (*cp == _T(':'))
  {
    if (*next != _T('\0'))
    {
      optarg = next;
      next = NULL;
    }
    else if (optind < argc)
    {
      optarg = argv[optind];
      optind++;
    }
    else
    {
      return _T('?');
    }
  }

  return c;
}