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 #include "getopt.h"
  16
  17 #ifndef __STDC__
  18 /* This is a separate conditional since some stdc systems
  19    reject `defined (const)'.  */
  20 #ifndef const
  21 #define const
  22 #endif
  23 #endif
  24
  25 #include <stdio.h>
  26
  27 /* Comment out all this code if we are using the GNU C Library, and are not
  28    actually compiling the library itself.  This code is part of the GNU C
  29    Library, but also included in many other GNU distributions.  Compiling
  30    and linking in this code is a waste when using the GNU C library
  31    (especially if it is a shared library).  Rather than having every GNU
  32    program understand `configure --with-gnu-libc' and omit the object files,
  33    it is simpler to just do this in the source for each such file.  */
  34
  35 #if defined (_LIBC) || !defined (__GNU_LIBRARY__)
  36
  37 /* This needs to come after some library #include
  38    to get __GNU_LIBRARY__ defined.  */
  39 #ifdef __GNU_LIBRARY__
  40 #include <stdlib.h>
  41 #else
  42 char *getenv();
  43 #endif
  44
  45 #ifndef NULL
  46 #define NULL 0
  47 #endif
  48
  49 int getopt_long(argc, argv, options, long_options, opt_index)
  50 int argc;
  51 char *const *argv;
  52 const char *options;
  53 const struct option *long_options;
  54 int *opt_index;
  55 {
  56         return _getopt_internal(argc, argv, options, long_options, opt_index, 0);
  57 }
  58
  59 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
  60    If an option that starts with '-' (not '--') doesn't match a long option,
  61    but does match a short option, it is parsed as a short option
  62    instead.  */
  63
  64 int getopt_long_only(argc, argv, options, long_options, opt_index)
  65 int argc;
  66 char *const *argv;
  67 const char *options;
  68 const struct option *long_options;
  69 int *opt_index;
  70 {
  71         return _getopt_internal(argc, argv, options, long_options, opt_index, 1);
  72 }
  73
  74 #endif                          /* _LIBC or not __GNU_LIBRARY__.  */
  75 \f
  76 #ifdef TEST
  77
  78 #include <stdio.h>
  79
  80 int main(argc, argv)
  81 int argc;
  82 char **argv;
  83 {
  84         int c;
  85         int digit_optind = 0;
  86
  87         while (1) {
  88                 int this_option_optind = optind ? optind : 1;
  89                 int option_index = 0;
  90                 static struct option long_options[] = {
  91                         {"add", 1, 0, 0},
  92                         {"append", 0, 0, 0},
  93                         {"delete", 1, 0, 0},
  94                         {"verbose", 0, 0, 0},
  95                         {"create", 0, 0, 0},
  96                         {"file", 1, 0, 0},
  97                         {0, 0, 0, 0}
  98                 };
  99
 100                 c = getopt_long(argc, argv, "abc:d:0123456789", long_options, &option_index);
 101                 if (c == EOF)
 102                         break;
 103
 104                 switch (c) {
 105                 case 0:
 106                         printf("option %s", long_options[option_index].name);
 107                         if (optarg)
 108                                 printf(" with arg %s", optarg);
 109                         printf("\n");
 110                         break;
 111
 112                 case '0':
 113                 case '1':
 114                 case '2':
 115                 case '3':
 116                 case '4':
 117                 case '5':
 118                 case '6':
 119                 case '7':
 120                 case '8':
 121                 case '9':
 122                         if (digit_optind != 0 && digit_optind != this_option_optind)
 123                                 printf("digits occur in two different argv-elements.\n");
 124                         digit_optind = this_option_optind;
 125                         printf("option %c\n", c);
 126                         break;
 127
 128                 case 'a':
 129                         printf("option a\n");
 130                         break;
 131
 132                 case 'b':
 133                         printf("option b\n");
 134                         break;
 135
 136                 case 'c':
 137                         printf("option c with value `%s'\n", optarg);
 138                         break;
 139
 140                 case 'd':
 141                         printf("option d with value `%s'\n", optarg);
 142                         break;
 143
 144                 case '?':
 145                         break;
 146
 147                 default:
 148                         printf("?? getopt returned character code 0%o ??\n", c);
 149                 }
 150         }
 151
 152         if (optind < argc) {
 153                 printf("non-option ARGV-elements: ");
 154                 while (optind < argc)
 155                         printf("%s ", argv[optind++]);
 156                 printf("\n");
 157         }
 158
 159         exit(0);
 160 }
 161
 162 #endif                          /* TEST */