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 #ifdef HAVE_CONFIG_H 16 #if defined (emacs) || defined (CONFIG_BROKETS) 17 /* We use <config.h> instead of "config.h" so that a compilation 18 using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h 19 (which it would do because it found this file in $srcdir). */ 20 #include <config.h> 21 #else 22 #include "config.h" 23 #endif 24 #endif 25 26 #include "getopt.h" 27 28 #ifndef __STDC__ 29 /* This is a separate conditional since some stdc systems 30 reject `defined (const)'. */ 31 #ifndef const 32 #define const 33 #endif 34 #endif 35 36 #include <stdio.h> 37 38 /* Comment out all this code if we are using the GNU C Library, and are not 39 actually compiling the library itself. This code is part of the GNU C 40 Library, but also included in many other GNU distributions. Compiling 41 and linking in this code is a waste when using the GNU C library 42 (especially if it is a shared library). Rather than having every GNU 43 program understand `configure --with-gnu-libc' and omit the object files, 44 it is simpler to just do this in the source for each such file. */ 45 46 #if defined (_LIBC) || !defined (__GNU_LIBRARY__) 47 48 49 /* This needs to come after some library #include 50 to get __GNU_LIBRARY__ defined. */ 51 #ifdef __GNU_LIBRARY__ 52 #include <stdlib.h> 53 #else 54 char *getenv (); 55 #endif 56 57 #ifndef NULL 58 #define NULL 0 59 #endif 60 61 int 62 getopt_long (argc, argv, options, long_options, opt_index) 63 int argc; 64 char *const *argv; 65 const char *options; 66 const struct option *long_options; 67 int *opt_index; 68 { 69 return _getopt_internal (argc, argv, options, long_options, opt_index, 0); 70 } 71 72 /* Like getopt_long, but '-' as well as '--' can indicate a long option. 73 If an option that starts with '-' (not '--') doesn't match a long option, 74 but does match a short option, it is parsed as a short option 75 instead. */ 76 77 int 78 getopt_long_only (argc, argv, options, long_options, opt_index) 79 int argc; 80 char *const *argv; 81 const char *options; 82 const struct option *long_options; 83 int *opt_index; 84 { 85 return _getopt_internal (argc, argv, options, long_options, opt_index, 1); 86 } 87 88 89 #endif /* _LIBC or not __GNU_LIBRARY__. */ 90 91 #ifdef TEST 92 93 #include <stdio.h> 94 95 int 96 main (argc, argv) 97 int argc; 98 char **argv; 99 { 100 int c; 101 int digit_optind = 0; 102 103 while (1) 104 { 105 int this_option_optind = optind ? optind : 1; 106 int option_index = 0; 107 static struct option long_options[] = 108 { 109 {"add", 1, 0, 0}, 110 {"append", 0, 0, 0}, 111 {"delete", 1, 0, 0}, 112 {"verbose", 0, 0, 0}, 113 {"create", 0, 0, 0}, 114 {"file", 1, 0, 0}, 115 {0, 0, 0, 0} 116 }; 117 118 c = getopt_long (argc, argv, "abc:d:0123456789", 119 long_options, &option_index); 120 if (c == EOF) 121 break; 122 123 switch (c) 124 { 125 case 0: 126 printf ("option %s", long_options[option_index].name); 127 if (optarg) 128 printf (" with arg %s", optarg); 129 printf ("\n"); 130 break; 131 132 case '0': 133 case '1': 134 case '2': 135 case '3': 136 case '4': 137 case '5': 138 case '6': 139 case '7': 140 case '8': 141 case '9': 142 if (digit_optind != 0 && digit_optind != this_option_optind) 143 printf ("digits occur in two different argv-elements.\n"); 144 digit_optind = this_option_optind; 145 printf ("option %c\n", c); 146 break; 147 148 case 'a': 149 printf ("option a\n"); 150 break; 151 152 case 'b': 153 printf ("option b\n"); 154 break; 155 156 case 'c': 157 printf ("option c with value `%s'\n", optarg); 158 break; 159 160 case 'd': 161 printf ("option d with value `%s'\n", optarg); 162 break; 163 164 case '?': 165 break; 166 167 default: 168 printf ("?? getopt returned character code 0%o ??\n", c); 169 } 170 } 171 172 if (optind < argc) 173 { 174 printf ("non-option ARGV-elements: "); 175 while (optind < argc) 176 printf ("%s ", argv[optind++]); 177 printf ("\n"); 178 } 179 180 exit (0); 181 } 182 183 #endif /* TEST */ 184