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[/] [or1k/] [trunk/] [insight/] [gdb/] [mi/] [mi-getopt.c] - Blame information for rev 1765

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1 578 markom
/* MI Command Set - MI Option Parser.
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   Copyright 2000, 2001 Free Software Foundation, Inc.
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   Contributed by Cygnus Solutions (a Red Hat company).
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   This file is part of GDB.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 2 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 59 Temple Place - Suite 330,
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   Boston, MA 02111-1307, USA.  */
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#include "defs.h"
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#include "mi-getopt.h"
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#include "gdb_string.h"
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int
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mi_getopt (const char *prefix,
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           int argc, char **argv,
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           struct mi_opt *opts,
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           int *optind, char **optarg)
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{
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  char *arg;
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  struct mi_opt *opt;
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  /* We assume that argv/argc are ok. */
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  if (*optind > argc || *optind < 0)
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    internal_error (__FILE__, __LINE__,
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                    "mi_getopt_long: optind out of bounds");
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  if (*optind == argc)
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    return -1;
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  arg = argv[*optind];
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  /* ``--''? */
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  if (strcmp (arg, "--") == 0)
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    {
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      *optind += 1;
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      *optarg = NULL;
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      return -1;
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    }
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  /* End of option list. */
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  if (arg[0] != '-')
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    {
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      *optarg = NULL;
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      return -1;
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    }
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  /* Look the option up. */
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  for (opt = opts; opt->name != NULL; opt++)
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    {
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      if (strcmp (opt->name, arg + 1) != 0)
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        continue;
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      if (opt->arg_p)
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        {
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          /* A non-simple optarg option. */
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          if (argc < *optind + 2)
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            error ("%s: Option %s requires an argument", prefix, arg);
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          *optarg = argv[(*optind) + 1];
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          *optind = (*optind) + 2;
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          return opt->index;
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        }
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      else
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        {
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          *optarg = NULL;
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          *optind = (*optind) + 1;
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          return opt->index;
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        }
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    }
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  error ("%s: Unknown option ``%s''", prefix, arg + 1);
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}

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