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1.1 root 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: #if defined (emacs) || defined (CONFIG_BROKETS)
21: /* We use <config.h> instead of "config.h" so that a compilation
22: using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
23: (which it would do because it found this file in $srcdir). */
24: #include <config.h>
25: #else
26: #include "config.h"
27: #endif
28: #endif
29:
30: #include "getopt.h"
31:
32: #ifndef __STDC__
33: /* This is a separate conditional since some stdc systems
34: reject `defined (const)'. */
35: #ifndef const
36: #define const
37: #endif
38: #endif
39:
40: #include <stdio.h>
41:
42: /* Comment out all this code if we are using the GNU C Library, and are not
43: actually compiling the library itself. This code is part of the GNU C
44: Library, but also included in many other GNU distributions. Compiling
45: and linking in this code is a waste when using the GNU C library
46: (especially if it is a shared library). Rather than having every GNU
47: program understand `configure --with-gnu-libc' and omit the object files,
48: it is simpler to just do this in the source for each such file. */
49:
50: #if defined (_LIBC) || !defined (__GNU_LIBRARY__)
51:
52:
53: /* This needs to come after some library #include
54: to get __GNU_LIBRARY__ defined. */
55: #ifdef __GNU_LIBRARY__
56: #include <stdlib.h>
57: #else
58: char *getenv ();
59: #endif
60:
61: #ifndef NULL
62: #define NULL 0
63: #endif
64:
65: int
66: getopt_long (argc, argv, options, long_options, opt_index)
67: int argc;
68: char *const *argv;
69: const char *options;
70: const struct option *long_options;
71: int *opt_index;
72: {
73: return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
74: }
75:
76: /* Like getopt_long, but '-' as well as '--' can indicate a long option.
77: If an option that starts with '-' (not '--') doesn't match a long option,
78: but does match a short option, it is parsed as a short option
79: instead. */
80:
81: int
82: getopt_long_only (argc, argv, options, long_options, opt_index)
83: int argc;
84: char *const *argv;
85: const char *options;
86: const struct option *long_options;
87: int *opt_index;
88: {
89: return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
90: }
91:
92:
93: #endif /* _LIBC or not __GNU_LIBRARY__. */
94:
95: #ifdef TEST
96:
97: #include <stdio.h>
98:
99: int
100: main (argc, argv)
101: int argc;
102: char **argv;
103: {
104: int c;
105: int digit_optind = 0;
106:
107: while (1)
108: {
109: int this_option_optind = optind ? optind : 1;
110: int option_index = 0;
111: static struct option long_options[] =
112: {
113: {"add", 1, 0, 0},
114: {"append", 0, 0, 0},
115: {"delete", 1, 0, 0},
116: {"verbose", 0, 0, 0},
117: {"create", 0, 0, 0},
118: {"file", 1, 0, 0},
119: {0, 0, 0, 0}
120: };
121:
122: c = getopt_long (argc, argv, "abc:d:0123456789",
123: long_options, &option_index);
124: if (c == EOF)
125: break;
126:
127: switch (c)
128: {
129: case 0:
130: printf ("option %s", long_options[option_index].name);
131: if (optarg)
132: printf (" with arg %s", optarg);
133: printf ("\n");
134: break;
135:
136: case '0':
137: case '1':
138: case '2':
139: case '3':
140: case '4':
141: case '5':
142: case '6':
143: case '7':
144: case '8':
145: case '9':
146: if (digit_optind != 0 && digit_optind != this_option_optind)
147: printf ("digits occur in two different argv-elements.\n");
148: digit_optind = this_option_optind;
149: printf ("option %c\n", c);
150: break;
151:
152: case 'a':
153: printf ("option a\n");
154: break;
155:
156: case 'b':
157: printf ("option b\n");
158: break;
159:
160: case 'c':
161: printf ("option c with value `%s'\n", optarg);
162: break;
163:
164: case 'd':
165: printf ("option d with value `%s'\n", optarg);
166: break;
167:
168: case '?':
169: break;
170:
171: default:
172: printf ("?? getopt returned character code 0%o ??\n", c);
173: }
174: }
175:
176: if (optind < argc)
177: {
178: printf ("non-option ARGV-elements: ");
179: while (optind < argc)
180: printf ("%s ", argv[optind++]);
181: printf ("\n");
182: }
183:
184: exit (0);
185: }
186:
187: #endif /* TEST */
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