comparison: src/getopt1.c
src/getopt1.c
- changeset 991
- 2f415c128b8e
- child 8046
- c581b20a47d6
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| 990:a1af2986b004 | 991:2f415c128b8e |
|---|---|
| 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 | |
| 15 You should have received a copy of the GNU General Public License | |
| 16 along with this program; if not, write to the Free Software | |
| 17 Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 18 | |
| 19 #ifdef HAVE_CONFIG_H | |
| 20 #include "config.h" | |
| 21 #endif | |
| 22 | |
| 23 #include "getopt.h" | |
| 24 | |
| 25 #if !__STDC__ && !defined(const) && IN_GCC | |
| 26 #define const | |
| 27 #endif | |
| 28 | |
| 29 #include <stdio.h> | |
| 30 | |
| 31 /* Comment out all this code if we are using the GNU C Library, and are not | |
| 32 actually compiling the library itself. This code is part of the GNU C | |
| 33 Library, but also included in many other GNU distributions. Compiling | |
| 34 and linking in this code is a waste when using the GNU C library | |
| 35 (especially if it is a shared library). Rather than having every GNU | |
| 36 program understand `configure --with-gnu-libc' and omit the object files, | |
| 37 it is simpler to just do this in the source for each such file. */ | |
| 38 | |
| 39 #if defined (_LIBC) || !defined (__GNU_LIBRARY__) | |
| 40 | |
| 41 | |
| 42 /* This needs to come after some library #include | |
| 43 to get __GNU_LIBRARY__ defined. */ | |
| 44 #ifdef __GNU_LIBRARY__ | |
| 45 #include <stdlib.h> | |
| 46 #else | |
| 47 char *getenv (); | |
| 48 #endif | |
| 49 | |
| 50 #ifndef NULL | |
| 51 #define NULL 0 | |
| 52 #endif | |
| 53 | |
| 54 int | |
| 55 getopt_long (argc, argv, options, long_options, opt_index) | |
| 56 int argc; | |
| 57 char *const *argv; | |
| 58 const char *options; | |
| 59 const struct option *long_options; | |
| 60 int *opt_index; | |
| 61 { | |
| 62 return _getopt_internal (argc, argv, options, long_options, opt_index, 0); | |
| 63 } | |
| 64 | |
| 65 /* Like getopt_long, but '-' as well as '--' can indicate a long option. | |
| 66 If an option that starts with '-' (not '--') doesn't match a long option, | |
| 67 but does match a short option, it is parsed as a short option | |
| 68 instead. */ | |
| 69 | |
| 70 int | |
| 71 getopt_long_only (argc, argv, options, long_options, opt_index) | |
| 72 int argc; | |
| 73 char *const *argv; | |
| 74 const char *options; | |
| 75 const struct option *long_options; | |
| 76 int *opt_index; | |
| 77 { | |
| 78 return _getopt_internal (argc, argv, options, long_options, opt_index, 1); | |
| 79 } | |
| 80 | |
| 81 | |
| 82 #endif /* _LIBC or not __GNU_LIBRARY__. */ | |
| 83 | |
| 84 #ifdef TEST | |
| 85 | |
| 86 #include <stdio.h> | |
| 87 | |
| 88 int | |
| 89 main (argc, argv) | |
| 90 int argc; | |
| 91 char **argv; | |
| 92 { | |
| 93 int c; | |
| 94 int digit_optind = 0; | |
| 95 | |
| 96 while (1) | |
| 97 { | |
| 98 int this_option_optind = optind ? optind : 1; | |
| 99 int option_index = 0; | |
| 100 static struct option long_options[] = | |
| 101 { | |
| 102 {"add", 1, 0, 0}, | |
| 103 {"append", 0, 0, 0}, | |
| 104 {"delete", 1, 0, 0}, | |
| 105 {"verbose", 0, 0, 0}, | |
| 106 {"create", 0, 0, 0}, | |
| 107 {"file", 1, 0, 0}, | |
| 108 {0, 0, 0, 0} | |
| 109 }; | |
| 110 | |
| 111 c = getopt_long (argc, argv, "abc:d:0123456789", | |
| 112 long_options, &option_index); | |
| 113 if (c == EOF) | |
| 114 break; | |
| 115 | |
| 116 switch (c) | |
| 117 { | |
| 118 case 0: | |
| 119 printf ("option %s", long_options[option_index].name); | |
| 120 if (optarg) | |
| 121 printf (" with arg %s", optarg); | |
| 122 printf ("\n"); | |
| 123 break; | |
| 124 | |
| 125 case '0': | |
| 126 case '1': | |
| 127 case '2': | |
| 128 case '3': | |
| 129 case '4': | |
| 130 case '5': | |
| 131 case '6': | |
| 132 case '7': | |
| 133 case '8': | |
| 134 case '9': | |
| 135 if (digit_optind != 0 && digit_optind != this_option_optind) | |
| 136 printf ("digits occur in two different argv-elements.\n"); | |
| 137 digit_optind = this_option_optind; | |
| 138 printf ("option %c\n", c); | |
| 139 break; | |
| 140 | |
| 141 case 'a': | |
| 142 printf ("option a\n"); | |
| 143 break; | |
| 144 | |
| 145 case 'b': | |
| 146 printf ("option b\n"); | |
| 147 break; | |
| 148 | |
| 149 case 'c': | |
| 150 printf ("option c with value `%s'\n", optarg); | |
| 151 break; | |
| 152 | |
| 153 case 'd': | |
| 154 printf ("option d with value `%s'\n", optarg); | |
| 155 break; | |
| 156 | |
| 157 case '?': | |
| 158 break; | |
| 159 | |
| 160 default: | |
| 161 printf ("?? getopt returned character code 0%o ??\n", c); | |
| 162 } | |
| 163 } | |
| 164 | |
| 165 if (optind < argc) | |
| 166 { | |
| 167 printf ("non-option ARGV-elements: "); | |
| 168 while (optind < argc) | |
| 169 printf ("%s ", argv[optind++]); | |
| 170 printf ("\n"); | |
| 171 } | |
| 172 | |
| 173 exit (0); | |
| 174 } | |
| 175 | |
| 176 #endif /* TEST */ |
