Annotation of gcc/getopt1.c, revision 1.1.1.3

1.1       root        1: /* Getopt for GNU.
                      2:    Copyright (C) 1987, 88, 89, 90, 91, 1992 Free Software Foundation, Inc.
                      3: 
1.1.1.2   root        4:    This program is free software; you can redistribute it and/or modify it
1.1.1.3 ! root        5:    under the terms of the GNU General Public License as published by the
        !             6:    Free Software Foundation; either version 2, or (at your option) any
        !             7:    later version.
        !             8:    
1.1       root        9:    This program is distributed in the hope that it will be useful,
                     10:    but WITHOUT ANY WARRANTY; without even the implied warranty of
                     11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     12:    GNU General Public License for more details.
1.1.1.3 ! root       13:    
        !            14:    You should have received a copy of the GNU General Public License
        !            15:    along with this program; if not, write to the Free Software
        !            16:    Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
1.1       root       17: 
1.1.1.3 ! root       18: #ifdef HAVE_CONFIG_H
        !            19: #include "config.h"
1.1       root       20: #endif
                     21: 
                     22: #include "getopt.h"
                     23: 
1.1.1.3 ! root       24: #if !__STDC__ && !defined(const)
1.1       root       25: #define const
                     26: #endif
                     27: 
1.1.1.3 ! root       28: #include <stdio.h>
        !            29: 
        !            30: /* This needs to come after some library #include
        !            31:    to get __GNU_LIBRARY__ defined.  */
        !            32: #ifdef __GNU_LIBRARY__
1.1       root       33: #include <stdlib.h>
1.1.1.3 ! root       34: #else
1.1       root       35: char *getenv ();
1.1.1.3 ! root       36: #endif
1.1       root       37: 
1.1.1.3 ! root       38: #ifndef        NULL
1.1       root       39: #define NULL 0
                     40: #endif
                     41: 
                     42: int
                     43: getopt_long (argc, argv, options, long_options, opt_index)
                     44:      int argc;
                     45:      char *const *argv;
                     46:      const char *options;
                     47:      const struct option *long_options;
                     48:      int *opt_index;
                     49: {
                     50:   return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
                     51: }
                     52: 
                     53: /* Like getopt_long, but '-' as well as '--' can indicate a long option.
                     54:    If an option that starts with '-' (not '--') doesn't match a long option,
                     55:    but does match a short option, it is parsed as a short option
1.1.1.3 ! root       56:    instead.  */
1.1       root       57: 
                     58: int 
                     59: getopt_long_only (argc, argv, options, long_options, opt_index)
                     60:      int argc;
                     61:      char *const *argv;
                     62:      const char *options;
                     63:      const struct option *long_options;
                     64:      int *opt_index;
                     65: {
                     66:   return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
                     67: }
                     68: 
                     69: #ifdef TEST
                     70: 
                     71: #include <stdio.h>
                     72: 
                     73: int
                     74: main (argc, argv)
                     75:      int argc;
                     76:      char **argv;
                     77: {
                     78:   int c;
                     79:   int digit_optind = 0;
                     80: 
                     81:   while (1)
                     82:     {
                     83:       int this_option_optind = optind ? optind : 1;
                     84:       int option_index = 0;
                     85:       static struct option long_options[] =
                     86:       {
                     87:        {"add", 1, 0, 0},
                     88:        {"append", 0, 0, 0},
                     89:        {"delete", 1, 0, 0},
                     90:        {"verbose", 0, 0, 0},
                     91:        {"create", 0, 0, 0},
                     92:        {"file", 1, 0, 0},
                     93:        {0, 0, 0, 0}
                     94:       };
                     95: 
                     96:       c = getopt_long (argc, argv, "abc:d:0123456789",
                     97:                       long_options, &option_index);
                     98:       if (c == EOF)
                     99:        break;
                    100: 
                    101:       switch (c)
                    102:        {
                    103:        case 0:
                    104:          printf ("option %s", long_options[option_index].name);
                    105:          if (optarg)
                    106:            printf (" with arg %s", optarg);
                    107:          printf ("\n");
                    108:          break;
                    109: 
                    110:        case '0':
                    111:        case '1':
                    112:        case '2':
                    113:        case '3':
                    114:        case '4':
                    115:        case '5':
                    116:        case '6':
                    117:        case '7':
                    118:        case '8':
                    119:        case '9':
                    120:          if (digit_optind != 0 && digit_optind != this_option_optind)
                    121:            printf ("digits occur in two different argv-elements.\n");
                    122:          digit_optind = this_option_optind;
                    123:          printf ("option %c\n", c);
                    124:          break;
                    125: 
                    126:        case 'a':
                    127:          printf ("option a\n");
                    128:          break;
                    129: 
                    130:        case 'b':
                    131:          printf ("option b\n");
                    132:          break;
                    133: 
                    134:        case 'c':
                    135:          printf ("option c with value `%s'\n", optarg);
                    136:          break;
                    137: 
                    138:        case 'd':
                    139:          printf ("option d with value `%s'\n", optarg);
                    140:          break;
                    141: 
                    142:        case '?':
                    143:          break;
                    144: 
                    145:        default:
                    146:          printf ("?? getopt returned character code 0%o ??\n", c);
                    147:        }
                    148:     }
                    149: 
                    150:   if (optind < argc)
                    151:     {
                    152:       printf ("non-option ARGV-elements: ");
                    153:       while (optind < argc)
                    154:        printf ("%s ", argv[optind++]);
                    155:       printf ("\n");
                    156:     }
                    157: 
                    158:   exit (0);
                    159: }
                    160: 
                    161: #endif /* TEST */

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