1 /* MI Command Set - MI Option Parser.
2 Copyright 2000, 2001 Free Software Foundation, Inc.
3 Contributed by Cygnus Solutions (a Red Hat company).
4
5 This file is part of GDB.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
21
22 #include "defs.h"
23 #include "mi-getopt.h"
24 #include "gdb_string.h"
25
26 int
mi_getopt(const char * prefix,int argc,char ** argv,struct mi_opt * opts,int * optind,char ** optarg)27 mi_getopt (const char *prefix,
28 int argc, char **argv,
29 struct mi_opt *opts,
30 int *optind, char **optarg)
31 {
32 char *arg;
33 struct mi_opt *opt;
34 /* We assume that argv/argc are ok. */
35 if (*optind > argc || *optind < 0)
36 internal_error (__FILE__, __LINE__,
37 "mi_getopt_long: optind out of bounds");
38 if (*optind == argc)
39 return -1;
40 arg = argv[*optind];
41 /* ``--''? */
42 if (strcmp (arg, "--") == 0)
43 {
44 *optind += 1;
45 *optarg = NULL;
46 return -1;
47 }
48 /* End of option list. */
49 if (arg[0] != '-')
50 {
51 *optarg = NULL;
52 return -1;
53 }
54 /* Look the option up. */
55 for (opt = opts; opt->name != NULL; opt++)
56 {
57 if (strcmp (opt->name, arg + 1) != 0)
58 continue;
59 if (opt->arg_p)
60 {
61 /* A non-simple optarg option. */
62 if (argc < *optind + 2)
63 error ("%s: Option %s requires an argument", prefix, arg);
64 *optarg = argv[(*optind) + 1];
65 *optind = (*optind) + 2;
66 return opt->index;
67 }
68 else
69 {
70 *optarg = NULL;
71 *optind = (*optind) + 1;
72 return opt->index;
73 }
74 }
75 error ("%s: Unknown option ``%s''", prefix, arg + 1);
76 }
77
78 int
mi_valid_noargs(const char * prefix,int argc,char ** argv)79 mi_valid_noargs (const char *prefix, int argc, char **argv)
80 {
81 int optind = 0;
82 char *optarg;
83 static struct mi_opt opts[] =
84 {
85 0
86 };
87
88 if (mi_getopt (prefix, argc, argv, opts, &optind, &optarg) == -1)
89 return 1;
90 else
91 return 0;
92 }
93