Mercurial > hg > CbC > CbC_gcc
comparison libiberty/getopt1.c @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
parents | |
children | 04ced10e8804 |
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1 /* getopt_long and getopt_long_only entry points for GNU getopt. | |
2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2005 | |
3 Free Software Foundation, Inc. | |
4 | |
5 NOTE: This source is derived from an old version taken from the GNU C | |
6 Library (glibc). | |
7 | |
8 This program is free software; you can redistribute it and/or modify it | |
9 under the terms of the GNU General Public License as published by the | |
10 Free Software Foundation; either version 2, or (at your option) any | |
11 later version. | |
12 | |
13 This program is distributed in the hope that it will be useful, | |
14 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 GNU General Public License for more details. | |
17 | |
18 You should have received a copy of the GNU General Public License | |
19 along with this program; if not, write to the Free Software | |
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, | |
21 USA. */ | |
22 | |
23 #ifdef HAVE_CONFIG_H | |
24 #include <config.h> | |
25 #endif | |
26 | |
27 #if !defined __STDC__ || !__STDC__ | |
28 /* This is a separate conditional since some stdc systems | |
29 reject `defined (const)'. */ | |
30 #ifndef const | |
31 #define const | |
32 #endif | |
33 #endif | |
34 | |
35 #include <stdio.h> | |
36 | |
37 #include "getopt.h" | |
38 | |
39 /* Comment out all this code if we are using the GNU C Library, and are not | |
40 actually compiling the library itself. This code is part of the GNU C | |
41 Library, but also included in many other GNU distributions. Compiling | |
42 and linking in this code is a waste when using the GNU C library | |
43 (especially if it is a shared library). Rather than having every GNU | |
44 program understand `configure --with-gnu-libc' and omit the object files, | |
45 it is simpler to just do this in the source for each such file. */ | |
46 | |
47 #define GETOPT_INTERFACE_VERSION 2 | |
48 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 | |
49 #include <gnu-versions.h> | |
50 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION | |
51 #define ELIDE_CODE | |
52 #endif | |
53 #endif | |
54 | |
55 #ifndef ELIDE_CODE | |
56 | |
57 | |
58 /* This needs to come after some library #include | |
59 to get __GNU_LIBRARY__ defined. */ | |
60 #ifdef __GNU_LIBRARY__ | |
61 #include <stdlib.h> | |
62 #endif | |
63 | |
64 #ifndef NULL | |
65 #define NULL 0 | |
66 #endif | |
67 | |
68 int | |
69 getopt_long (int argc, char *const *argv, const char *options, | |
70 const struct option *long_options, int *opt_index) | |
71 { | |
72 return _getopt_internal (argc, argv, options, long_options, opt_index, 0); | |
73 } | |
74 | |
75 /* Like getopt_long, but '-' as well as '--' can indicate a long option. | |
76 If an option that starts with '-' (not '--') doesn't match a long option, | |
77 but does match a short option, it is parsed as a short option | |
78 instead. */ | |
79 | |
80 int | |
81 getopt_long_only (int argc, char *const *argv, const char *options, | |
82 const struct option *long_options, int *opt_index) | |
83 { | |
84 return _getopt_internal (argc, argv, options, long_options, opt_index, 1); | |
85 } | |
86 | |
87 | |
88 #endif /* Not ELIDE_CODE. */ | |
89 | |
90 #ifdef TEST | |
91 | |
92 #include <stdio.h> | |
93 | |
94 int | |
95 main (int argc, char **argv) | |
96 { | |
97 int c; | |
98 int digit_optind = 0; | |
99 | |
100 while (1) | |
101 { | |
102 int this_option_optind = optind ? optind : 1; | |
103 int option_index = 0; | |
104 static struct option long_options[] = | |
105 { | |
106 {"add", 1, 0, 0}, | |
107 {"append", 0, 0, 0}, | |
108 {"delete", 1, 0, 0}, | |
109 {"verbose", 0, 0, 0}, | |
110 {"create", 0, 0, 0}, | |
111 {"file", 1, 0, 0}, | |
112 {0, 0, 0, 0} | |
113 }; | |
114 | |
115 c = getopt_long (argc, argv, "abc:d:0123456789", | |
116 long_options, &option_index); | |
117 if (c == -1) | |
118 break; | |
119 | |
120 switch (c) | |
121 { | |
122 case 0: | |
123 printf ("option %s", long_options[option_index].name); | |
124 if (optarg) | |
125 printf (" with arg %s", optarg); | |
126 printf ("\n"); | |
127 break; | |
128 | |
129 case '0': | |
130 case '1': | |
131 case '2': | |
132 case '3': | |
133 case '4': | |
134 case '5': | |
135 case '6': | |
136 case '7': | |
137 case '8': | |
138 case '9': | |
139 if (digit_optind != 0 && digit_optind != this_option_optind) | |
140 printf ("digits occur in two different argv-elements.\n"); | |
141 digit_optind = this_option_optind; | |
142 printf ("option %c\n", c); | |
143 break; | |
144 | |
145 case 'a': | |
146 printf ("option a\n"); | |
147 break; | |
148 | |
149 case 'b': | |
150 printf ("option b\n"); | |
151 break; | |
152 | |
153 case 'c': | |
154 printf ("option c with value `%s'\n", optarg); | |
155 break; | |
156 | |
157 case 'd': | |
158 printf ("option d with value `%s'\n", optarg); | |
159 break; | |
160 | |
161 case '?': | |
162 break; | |
163 | |
164 default: | |
165 printf ("?? getopt returned character code 0%o ??\n", c); | |
166 } | |
167 } | |
168 | |
169 if (optind < argc) | |
170 { | |
171 printf ("non-option ARGV-elements: "); | |
172 while (optind < argc) | |
173 printf ("%s ", argv[optind++]); | |
174 printf ("\n"); | |
175 } | |
176 | |
177 exit (0); | |
178 } | |
179 | |
180 #endif /* TEST */ |