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/cvs/gvpe/lib/getopt1.c
Revision: 1.3
Committed: Tue Apr 26 00:55:55 2005 UTC (19 years, 1 month ago) by pcg
Content type: text/plain
Branch: MAIN
CVS Tags: rel-2_01, rel-3_0, rel-2_2, rel-2_0, rel-2_21, rel-2_22, rel-2_25, HEAD
Changes since 1.2: +1 -1 lines
Log Message:
*** empty log message ***

File Contents

# User Rev Content
1 pcg 1.1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2     Copyright (C) 1987,88,89,90,91,92,93,94,96,97 Free Software Foundation, Inc.
3    
4     NOTE: The canonical source of this file is maintained with the GNU C Library.
5     Bugs can be reported to bug-glibc@prep.ai.mit.edu.
6    
7 pcg 1.2 This file is part of GVPE.
8    
9     GVPE is free software; you can redistribute it and/or modify it
10 pcg 1.1 under the terms of the GNU General Public License as published by the
11     Free Software Foundation; either version 2, or (at your option) any
12     later version.
13    
14     This program is distributed in the hope that it will be useful,
15     but WITHOUT ANY WARRANTY; without even the implied warranty of
16     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17     GNU General Public License for more details.
18    
19     You should have received a copy of the GNU General Public License
20 pcg 1.2 along with gvpe; if not, write to the Free Software
21 pcg 1.3 Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 pcg 1.1 */
23    
24     #ifdef HAVE_CONFIG_H
25     #include <config.h>
26     #endif
27    
28     #include "getopt.h"
29    
30     #if !defined (__STDC__) || !__STDC__
31     /* This is a separate conditional since some stdc systems
32     reject `defined (const)'. */
33     #ifndef const
34     #define const
35     #endif
36     #endif
37    
38     #include <stdio.h>
39    
40     /* Comment out all this code if we are using the GNU C Library, and are not
41     actually compiling the library itself. This code is part of the GNU C
42     Library, but also included in many other GNU distributions. Compiling
43     and linking in this code is a waste when using the GNU C library
44     (especially if it is a shared library). Rather than having every GNU
45     program understand `configure --with-gnu-libc' and omit the object files,
46     it is simpler to just do this in the source for each such file. */
47    
48     #define GETOPT_INTERFACE_VERSION 2
49     #if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
50     #include <gnu-versions.h>
51     #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
52     #define ELIDE_CODE
53     #endif
54     #endif
55    
56     #ifndef ELIDE_CODE
57    
58    
59     /* This needs to come after some library #include
60     to get __GNU_LIBRARY__ defined. */
61     #ifdef __GNU_LIBRARY__
62     #include <stdlib.h>
63     #endif
64    
65     #ifndef NULL
66     #define NULL 0
67     #endif
68    
69     int
70     getopt_long (argc, argv, options, long_options, opt_index)
71     int argc;
72     char *const *argv;
73     const char *options;
74     const struct option *long_options;
75     int *opt_index;
76     {
77     return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
78     }
79    
80     /* Like getopt_long, but '-' as well as '--' can indicate a long option.
81     If an option that starts with '-' (not '--') doesn't match a long option,
82     but does match a short option, it is parsed as a short option
83     instead. */
84    
85     int
86     getopt_long_only (argc, argv, options, long_options, opt_index)
87     int argc;
88     char *const *argv;
89     const char *options;
90     const struct option *long_options;
91     int *opt_index;
92     {
93     return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
94     }
95    
96    
97     #endif /* Not ELIDE_CODE. */
98    
99     #ifdef TEST
100    
101     #include <stdio.h>
102    
103     int
104     main (argc, argv)
105     int argc;
106     char **argv;
107     {
108     int c;
109     int digit_optind = 0;
110    
111     while (1)
112     {
113     int this_option_optind = optind ? optind : 1;
114     int option_index = 0;
115     static struct option long_options[] =
116     {
117     {"add", 1, 0, 0},
118     {"append", 0, 0, 0},
119     {"delete", 1, 0, 0},
120     {"verbose", 0, 0, 0},
121     {"create", 0, 0, 0},
122     {"file", 1, 0, 0},
123     {0, 0, 0, 0}
124     };
125    
126     c = getopt_long (argc, argv, "abc:d:0123456789",
127     long_options, &option_index);
128     if (c == -1)
129     break;
130    
131     switch (c)
132     {
133     case 0:
134     printf ("option %s", long_options[option_index].name);
135     if (optarg)
136     printf (" with arg %s", optarg);
137     printf ("\n");
138     break;
139    
140     case '0':
141     case '1':
142     case '2':
143     case '3':
144     case '4':
145     case '5':
146     case '6':
147     case '7':
148     case '8':
149     case '9':
150     if (digit_optind != 0 && digit_optind != this_option_optind)
151     printf ("digits occur in two different argv-elements.\n");
152     digit_optind = this_option_optind;
153     printf ("option %c\n", c);
154     break;
155    
156     case 'a':
157     printf ("option a\n");
158     break;
159    
160     case 'b':
161     printf ("option b\n");
162     break;
163    
164     case 'c':
165     printf ("option c with value `%s'\n", optarg);
166     break;
167    
168     case 'd':
169     printf ("option d with value `%s'\n", optarg);
170     break;
171    
172     case '?':
173     break;
174    
175     default:
176     printf ("?? getopt returned character code 0%o ??\n", c);
177     }
178     }
179    
180     if (optind < argc)
181     {
182     printf ("non-option ARGV-elements: ");
183     while (optind < argc)
184     printf ("%s ", argv[optind++]);
185     printf ("\n");
186     }
187    
188     exit (0);
189     }
190    
191     #endif /* TEST */