/* MI Command Set - MI Option Parser.
- Copyright (C) 2000, 2001, 2007, 2008, 2009, 2010
- Free Software Foundation, Inc.
+ Copyright (C) 2000-2015 Free Software Foundation, Inc.
Contributed by Cygnus Solutions (a Red Hat company).
This file is part of GDB.
#include "defs.h"
#include "mi-getopt.h"
-#include "gdb_string.h"
+/* See comments about mi_getopt and mi_getopt_silent in mi-getopt.h.
+ When there is an unknown option, if ERROR_ON_UNKNOWN is true,
+ throw an error, otherwise return -1. */
-int
-mi_getopt (const char *prefix,
- int argc, char **argv,
- struct mi_opt *opts,
- int *optind, char **optarg)
+static int
+mi_getopt_1 (const char *prefix, int argc, char **argv,
+ const struct mi_opt *opts, int *oind, char **oarg,
+ int error_on_unknown)
{
char *arg;
- struct mi_opt *opt;
+ const struct mi_opt *opt;
- /* We assume that argv/argc are ok. */
- if (*optind > argc || *optind < 0)
+ /* We assume that argv/argc are ok. */
+ if (*oind > argc || *oind < 0)
internal_error (__FILE__, __LINE__,
- _("mi_getopt_long: optind out of bounds"));
- if (*optind == argc)
+ _("mi_getopt_long: oind out of bounds"));
+ if (*oind == argc)
return -1;
- arg = argv[*optind];
+ arg = argv[*oind];
/* ``--''? */
if (strcmp (arg, "--") == 0)
{
- *optind += 1;
- *optarg = NULL;
+ *oind += 1;
+ *oarg = NULL;
return -1;
}
- /* End of option list. */
+ /* End of option list. */
if (arg[0] != '-')
{
- *optarg = NULL;
+ *oarg = NULL;
return -1;
}
- /* Look the option up. */
+ /* Look the option up. */
for (opt = opts; opt->name != NULL; opt++)
{
if (strcmp (opt->name, arg + 1) != 0)
continue;
if (opt->arg_p)
{
- /* A non-simple optarg option. */
- if (argc < *optind + 2)
+ /* A non-simple oarg option. */
+ if (argc < *oind + 2)
error (_("%s: Option %s requires an argument"), prefix, arg);
- *optarg = argv[(*optind) + 1];
- *optind = (*optind) + 2;
+ *oarg = argv[(*oind) + 1];
+ *oind = (*oind) + 2;
return opt->index;
}
else
{
- *optarg = NULL;
- *optind = (*optind) + 1;
+ *oarg = NULL;
+ *oind = (*oind) + 1;
return opt->index;
}
}
- error (_("%s: Unknown option ``%s''"), prefix, arg + 1);
+
+ if (error_on_unknown)
+ error (_("%s: Unknown option ``%s''"), prefix, arg + 1);
+ else
+ return -1;
+}
+
+int
+mi_getopt (const char *prefix,
+ int argc, char **argv,
+ const struct mi_opt *opts,
+ int *oind, char **oarg)
+{
+ return mi_getopt_1 (prefix, argc, argv, opts, oind, oarg, 1);
+}
+
+int
+mi_getopt_allow_unknown (const char *prefix, int argc, char **argv,
+ const struct mi_opt *opts, int *oind, char **oarg)
+{
+ return mi_getopt_1 (prefix, argc, argv, opts, oind, oarg, 0);
}
int
mi_valid_noargs (const char *prefix, int argc, char **argv)
{
- int optind = 0;
- char *optarg;
- static struct mi_opt opts[] =
- {
- { 0, 0, 0 }
- };
+ int oind = 0;
+ char *oarg;
+ static const struct mi_opt opts[] =
+ {
+ { 0, 0, 0 }
+ };
- if (mi_getopt (prefix, argc, argv, opts, &optind, &optarg) == -1)
+ if (mi_getopt (prefix, argc, argv, opts, &oind, &oarg) == -1)
return 1;
else
return 0;