/* Getopt for GNU.
  Copyright (C) 1987, 1989 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 1, 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, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#include "getopt.h"

#ifdef __STDC__
#define CONST const
#else
#define CONST
#endif

#if !defined (NULL)
#define NULL 0
#endif

int
getopt_long (argc, argv, options, long_options, opt_index)
    int argc;
    char **argv;
    CONST char *options;
    CONST struct option *long_options;
    int *opt_index;
{
 int val;

 _getopt_long_options = long_options;
 val = getopt (argc, argv, options);
 if (val == 0 && opt_index != NULL)
   *opt_index = option_index;
 return val;
}

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

int
getopt_long_only (argc, argv, options, long_options, opt_index)
    int argc;
    char **argv;
    CONST char *options;
    CONST struct option *long_options;
    int *opt_index;
{
 int val;

 _getopt_long_options = long_options;
 _getopt_long_only = 1;
 val = getopt (argc, argv, options);
 if (val == 0 && opt_index != NULL)
   *opt_index = option_index;
 return val;
}


#ifdef TEST

#include <stdio.h>

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

 while (1)
   {
     int this_option_optind = optind ? optind : 1;
     char *name = '\0';
     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 '?':
         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 */