source: tags/gsdl-2_35-distribution/gsdl/src/mgpp/lib/getopt1.cpp@ 2444

/* getopt_long and getopt_long_only entry points for GNU getopt.
   Copyright (C) 1987, 88, 89, 90, 91, 92, 1993
   Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by the
   Free Software Foundation; either version 2, or (at your option) any
   later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */


#ifdef HAVE_CONFIG_H
#include "sysfuncs.h"
#endif

#include "getopt.h"

#if !__STDC__ && !defined(const) && IN_GCC
#define const
#endif

#include <stdio.h>

/* Comment out all this code if we are using the GNU C Library, and are not
   actually compiling the library itself.  This code is part of the GNU C
   Library, but also included in many other GNU distributions.  Compiling
   and linking in this code is a waste when using the GNU C library
   (especially if it is a shared library).  Rather than having every GNU
   program understand `configure --with-gnu-libc' and omit the object files,
   it is simpler to just do this in the source for each such file.  */

#if defined (_LIBC) || !defined (__GNU_LIBRARY__)


/* This needs to come after some library #include
   to get __GNU_LIBRARY__ defined.  */
#ifdef __GNU_LIBRARY__
#include <stdlib.h>
#else
char *getenv ();
#endif

#ifndef NULL
#define NULL 0
#endif

int
getopt_long (int argc, char *const *argv, const char *options,
         const struct option *long_options, int *opt_index)
{
  return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
}

/* Like getopt_long, but '-' as well as '--' can indicate a long option.
   If an option that starts with '-' (not '--') doesn't match a long option,
   but does match a short option, it is parsed as a short option
   instead.  */

int
getopt_long_only (int argc, char *const *argv, const char *options,
          const struct option *long_options, int *opt_index)
{
  return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
}


#endif /* _LIBC or not __GNU_LIBRARY__.  */


#ifdef TEST

#include <stdio.h>

int
main (int argc, char **argv)
{
  int c;
  int digit_optind = 0;

  while (1)
    {
      int this_option_optind = optind ? optind : 1;
      int option_index = 0;
      static struct option long_options[] =
      {
    {"add", 1, 0, 0},
    {"append", 0, 0, 0},
    {"delete", 1, 0, 0},
    {"verbose", 0, 0, 0},
    {"create", 0, 0, 0},
    {"file", 1, 0, 0},
    {0, 0, 0, 0}
      };

      c = getopt_long (argc, argv, "abc:d:0123456789",
               long_options, &option_index);
      if (c == EOF)
    break;

      switch (c)
    {
    case 0:
      printf ("option %s", long_options[option_index].name);
      if (optarg)
        printf (" with arg %s", optarg);
      printf ("\n");
      break;

    case '0':
    case '1':
    case '2':
    case '3':
    case '4':
    case '5':
    case '6':
    case '7':
    case '8':
    case '9':
      if (digit_optind != 0 && digit_optind != this_option_optind)
        printf ("digits occur in two different argv-elements.\n");
      digit_optind = this_option_optind;
      printf ("option %c\n", c);
      break;

    case 'a':
      printf ("option a\n");
      break;

    case 'b':
      printf ("option b\n");
      break;

    case 'c':
      printf ("option c with value `%s'\n", optarg);
      break;

    case 'd':
      printf ("option d with value `%s'\n", optarg);
      break;

    case '?':
      break;

    default:
      printf ("?? getopt returned character code 0%o ??\n", c);
    }
    }

  if (optind < argc)
    {
      printf ("non-option ARGV-elements: ");
      while (optind < argc)
    printf ("%s ", argv[optind++]);
      printf ("\n");
    }

  exit (0);
}

#endif /* TEST */