contrib/cvs-1.12/lib/getopt1.c

   1 /* getopt_long and getopt_long_only entry points for GNU getopt.
   2    Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004
   3      Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License along
  17    with this program; if not, write to the Free Software Foundation,
  18    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  19 \f
  20 #ifdef HAVE_CONFIG_H
  21 # include <config.h>
  22 #endif
  23
  24 #ifdef _LIBC
  25 # include <getopt.h>
  26 #else
  27 # include "getopt.h"
  28 #endif
  29 #include "getopt_int.h"
  30
  31 #include <stdio.h>
  32
  33 /* This needs to come after some library #include
  34    to get __GNU_LIBRARY__ defined.  */
  35 #ifdef __GNU_LIBRARY__
  36 #include <stdlib.h>
  37 #endif
  38
  39 #ifndef NULL
  40 #define NULL 0
  41 #endif
  42
  43 int
  44 getopt_long (int argc, char *__getopt_argv_const *argv, const char *options,
  45              const struct option *long_options, int *opt_index)
  46 {
  47   return _getopt_internal (argc, (char **) argv, options, long_options,
  48                            opt_index, 0, 0);
  49 }
  50
  51 int
  52 _getopt_long_r (int argc, char **argv, const char *options,
  53                 const struct option *long_options, int *opt_index,
  54                 struct _getopt_data *d)
  55 {
  56   return _getopt_internal_r (argc, argv, options, long_options, opt_index,
  57                              0, 0, d);
  58 }
  59
  60 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
  61    If an option that starts with '-' (not '--') doesn't match a long option,
  62    but does match a short option, it is parsed as a short option
  63    instead.  */
  64
  65 int
  66 getopt_long_only (int argc, char *__getopt_argv_const *argv,
  67                   const char *options,
  68                   const struct option *long_options, int *opt_index)
  69 {
  70   return _getopt_internal (argc, (char **) argv, options, long_options,
  71                            opt_index, 1, 0);
  72 }
  73
  74 int
  75 _getopt_long_only_r (int argc, char **argv, const char *options,
  76                      const struct option *long_options, int *opt_index,
  77                      struct _getopt_data *d)
  78 {
  79   return _getopt_internal_r (argc, argv, options, long_options, opt_index,
  80                              1, 0, d);
  81 }
  82
  83 \f
  84 #ifdef TEST
  85
  86 #include <stdio.h>
  87
  88 int
  89 main (int argc, char **argv)
  90 {
  91   int c;
  92   int digit_optind = 0;
  93
  94   while (1)
  95     {
  96       int this_option_optind = optind ? optind : 1;
  97       int option_index = 0;
  98       static struct option long_options[] =
  99       {
 100         {"add", 1, 0, 0},
 101         {"append", 0, 0, 0},
 102         {"delete", 1, 0, 0},
 103         {"verbose", 0, 0, 0},
 104         {"create", 0, 0, 0},
 105         {"file", 1, 0, 0},
 106         {0, 0, 0, 0}
 107       };
 108
 109       c = getopt_long (argc, argv, "abc:d:0123456789",
 110                        long_options, &option_index);
 111       if (c == -1)
 112         break;
 113
 114       switch (c)
 115         {
 116         case 0:
 117           printf ("option %s", long_options[option_index].name);
 118           if (optarg)
 119             printf (" with arg %s", optarg);
 120           printf ("\n");
 121           break;
 122
 123         case '0':
 124         case '1':
 125         case '2':
 126         case '3':
 127         case '4':
 128         case '5':
 129         case '6':
 130         case '7':
 131         case '8':
 132         case '9':
 133           if (digit_optind != 0 && digit_optind != this_option_optind)
 134             printf ("digits occur in two different argv-elements.\n");
 135           digit_optind = this_option_optind;
 136           printf ("option %c\n", c);
 137           break;
 138
 139         case 'a':
 140           printf ("option a\n");
 141           break;
 142
 143         case 'b':
 144           printf ("option b\n");
 145           break;
 146
 147         case 'c':
 148           printf ("option c with value `%s'\n", optarg);
 149           break;
 150
 151         case 'd':
 152           printf ("option d with value `%s'\n", optarg);
 153           break;
 154
 155         case '?':
 156           break;
 157
 158         default:
 159           printf ("?? getopt returned character code 0%o ??\n", c);
 160         }
 161     }
 162
 163   if (optind < argc)
 164     {
 165       printf ("non-option ARGV-elements: ");
 166       while (optind < argc)
 167         printf ("%s ", argv[optind++]);
 168       printf ("\n");
 169     }
 170
 171   exit (0);
 172 }
 173
 174 #endif /* TEST */