plugins/libwmfun/getopt1.c

   1 /* getopt_long and getopt_long_only entry points for GNU getopt.
   2    Copyright (C) 1987, 88, 89, 90, 91, 92, 1993
   3         Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify it
   6    under the terms of the GNU General Public License as published by the
   7    Free Software Foundation; either version 2, or (at your option) any
   8    later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.  */
  14 \f
  15
  16 #include "getopt.h"
  17
  18 #ifndef __STDC__
  19 /* This is a separate conditional since some stdc systems
  20    reject `defined (const)'.  */
  21 #ifndef const
  22 #define const
  23 #endif
  24 #endif
  25
  26 #include <stdio.h>
  27
  28 /* Comment out all this code if we are using the GNU C Library, and are not
  29    actually compiling the library itself.  This code is part of the GNU C
  30    Library, but also included in many other GNU distributions.  Compiling
  31    and linking in this code is a waste when using the GNU C library
  32    (especially if it is a shared library).  Rather than having every GNU
  33    program understand `configure --with-gnu-libc' and omit the object files,
  34    it is simpler to just do this in the source for each such file.  */
  35
  36 #if defined (_LIBC) || !defined (__GNU_LIBRARY__)
  37
  38
  39 /* This needs to come after some library #include
  40    to get __GNU_LIBRARY__ defined.  */
  41 #ifdef __GNU_LIBRARY__
  42 #include <stdlib.h>
  43 #else
  44 char *getenv ();
  45 #endif
  46
  47 #ifndef NULL
  48 #define NULL 0
  49 #endif
  50
  51 int
  52 getopt_long (argc, argv, options, long_options, opt_index)
  53      int argc;
  54      char *const *argv;
  55      const char *options;
  56      const struct option *long_options;
  57      int *opt_index;
  58 {
  59   return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
  60 }
  61
  62 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
  63    If an option that starts with '-' (not '--') doesn't match a long option,
  64    but does match a short option, it is parsed as a short option
  65    instead.  */
  66
  67 int
  68 getopt_long_only (argc, argv, options, long_options, opt_index)
  69      int argc;
  70      char *const *argv;
  71      const char *options;
  72      const struct option *long_options;
  73      int *opt_index;
  74 {
  75   return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
  76 }
  77
  78
  79 #endif  /* _LIBC or not __GNU_LIBRARY__.  */
  80 \f
  81 #ifdef TEST
  82
  83 #include <stdio.h>
  84
  85 int
  86 main (argc, argv)
  87      int argc;
  88      char **argv;
  89 {
  90   int c;
  91   int digit_optind = 0;
  92
  93   while (1)
  94     {
  95       int this_option_optind = optind ? optind : 1;
  96       int option_index = 0;
  97       static struct option long_options[] =
  98       {
  99         {"add", 1, 0, 0},
 100         {"append", 0, 0, 0},
 101         {"delete", 1, 0, 0},
 102         {"verbose", 0, 0, 0},
 103         {"create", 0, 0, 0},
 104         {"file", 1, 0, 0},
 105         {0, 0, 0, 0}
 106       };
 107
 108       c = getopt_long (argc, argv, "abc:d:0123456789",
 109                        long_options, &option_index);
 110       if (c == EOF)
 111         break;
 112
 113       switch (c)
 114         {
 115         case 0:
 116           printf ("option %s", long_options[option_index].name);
 117           if (optarg)
 118             printf (" with arg %s", optarg);
 119           printf ("\n");
 120           break;
 121
 122         case '0':
 123         case '1':
 124         case '2':
 125         case '3':
 126         case '4':
 127         case '5':
 128         case '6':
 129         case '7':
 130         case '8':
 131         case '9':
 132           if (digit_optind != 0 && digit_optind != this_option_optind)
 133             printf ("digits occur in two different argv-elements.\n");
 134           digit_optind = this_option_optind;
 135           printf ("option %c\n", c);
 136           break;
 137
 138         case 'a':
 139           printf ("option a\n");
 140           break;
 141
 142         case 'b':
 143           printf ("option b\n");
 144           break;
 145
 146         case 'c':
 147           printf ("option c with value `%s'\n", optarg);
 148           break;
 149
 150         case 'd':
 151           printf ("option d with value `%s'\n", optarg);
 152           break;
 153
 154         case '?':
 155           break;
 156
 157         default:
 158           printf ("?? getopt returned character code 0%o ??\n", c);
 159         }
 160     }
 161
 162   if (optind < argc)
 163     {
 164       printf ("non-option ARGV-elements: ");
 165       while (optind < argc)
 166         printf ("%s ", argv[optind++]);
 167       printf ("\n");
 168     }
 169
 170   exit (0);
 171 }
 172
 173 #endif /* TEST */