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79 lines
2.9 KiB
C
79 lines
2.9 KiB
C
/* MI Option Parser.
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Copyright (C) 2000-2017 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 3 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, see <http://www.gnu.org/licenses/>. */
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#ifndef MI_GETOPT_H
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#define MI_GETOPT_H
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/* The option list. Terminated by NAME==NULL. ARG_P that the option
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requires an argument. INDEX is returned to identify the option. */
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struct mi_opt
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{
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const char *name;
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int index;
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int arg_p;
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};
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/* Like getopt() but with simpler semantics.
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An option has the form ``-<name>''. The special option ``--''
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denotes the end of the option list. An option can be followed by a
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separate argument (on a per option basis).
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On entry OPTIND contains the index of the next element of ARGV that
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needs parsing. OPTIND is updated to indicate the index of the next
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argument before mi_getopt() returns.
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If ARGV[OPTIND] is an option, that options INDEX is returned.
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OPTARG is set to the options argument or NULL. OPTIND is updated.
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If ARGV[OPTIND] is not an option, -1 is returned and OPTIND updated
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to specify the non-option argument. OPTARG is set to NULL.
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If an unknown option is encountered, mi_getopt() calls
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``error("%s: Unknown option %c", prefix, option)'' while
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mi_getopt_allow_unknown returns -1. */
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extern int mi_getopt (const char *prefix, int argc, char **argv,
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const struct mi_opt *opt, int *optind, char **optarg);
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extern int mi_getopt_allow_unknown (const char *prefix, int argc,
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char **argv, const struct mi_opt *opts,
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int *oind, char **oarg);
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/* mi_valid_noargs determines if ARGC/ARGV are a valid set of
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parameters to satisfy an MI function that is not supposed to
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recieve any arguments.
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An MI function that should not receive arguments can still be
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passed parameters after the special option '--' such as below.
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Example: The MI function -exec-run takes no args.
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However, the client may pass '-exec-run -- -a ...'
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See PR-783
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PREFIX is passed to mi_getopt for an error message.
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This function Returns 1 if the parameter pair ARGC/ARGV are valid
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for an MI function that takes no arguments. Otherwise, it returns 0
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and the appropriate error message is displayed by mi_getopt. */
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extern int mi_valid_noargs (const char *prefix, int argc, char **argv);
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#endif
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