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Niels Möller authoredNiels Möller authored
getopt_int.h 4.61 KiB
/* Internal declarations for getopt.
Copyright (C) 1989-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef _GETOPT_INT_H
#define _GETOPT_INT_H 1
extern int _getopt_internal (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts, int *__longind,
int __long_only, int posixly_correct);
/* Reentrant versions which can handle parsing multiple argument
vectors at the same time. */
/* Data type for reentrant functions. */
struct _getopt_data
{
/* These have exactly the same meaning as the corresponding global
variables, except that they are used for the reentrant
versions of getopt. */
int optind;
int opterr;
int optopt;
char *optarg;
/* Internal members. */
/* True if the internal members have been initialized. */
int __initialized;
/* The next char to be scanned in the option-element
in which the last option character we returned was found.
This allows us to pick up the scan where we left off.
If this is zero, or a null string, it means resume the scan
by advancing to the next ARGV-element. */
char *__nextchar;
/* Describe how to deal with options that follow non-option ARGV-elements.
If the caller did not specify anything,
the default is REQUIRE_ORDER if the environment variable
POSIXLY_CORRECT is defined, PERMUTE otherwise.
REQUIRE_ORDER means don't recognize them as options;
stop option processing when the first non-option is seen.
This is what Unix does.
This mode of operation is selected by either setting the environment
variable POSIXLY_CORRECT, or using `+' as the first character
of the list of option characters.
PERMUTE is the default. We permute the contents of ARGV as we
scan, so that eventually all the non-options are at the end.
This allows options to be given in any order, even with programs