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lib: Update getopt_int.h from Gnulib.

This commit is contained in:
Jia Tan 2023-09-23 00:31:55 +08:00
parent 04bd86a4b0
commit cff05f8206
1 changed files with 48 additions and 61 deletions
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107
lib/getopt_int.h
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@ -1,25 +1,27 @@
/* Internal declarations for getopt. /* Internal declarations for getopt.
Copyright (C) 1989-1994,1996-1999,2001,2003,2004 Copyright (C) 1989-2023 Free Software Foundation, Inc.
Free Software Foundation, Inc. This file is part of the GNU C Library and is also part of gnulib.
This file is part of the GNU C Library. Patches to this file should be submitted to both projects.
This program is free software; you can redistribute it and/or modify The GNU C Library is free software; you can redistribute it and/or
it under the terms of the GNU General Public License as published by modify it under the terms of the GNU Lesser General Public
the Free Software Foundation; either version 2, or (at your option) License as published by the Free Software Foundation; either
any later version. version 2.1 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
GNU General Public License for more details. Lesser General Public License for more details.
You should have received a copy of the GNU General Public License along You should have received a copy of the GNU Lesser General Public
with this program; if not, write to the Free Software Foundation, License along with the GNU C Library; if not, see
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ <https://www.gnu.org/licenses/>. */
#ifndef _GETOPT_INT_H #ifndef _GETOPT_INT_H
#define _GETOPT_INT_H 1 #define _GETOPT_INT_H 1
#include <getopt.h>
extern int _getopt_internal (int ___argc, char **___argv, extern int _getopt_internal (int ___argc, char **___argv,
const char *__shortopts, const char *__shortopts,
const struct option *__longopts, int *__longind, const struct option *__longopts, int *__longind,
@ -29,6 +31,32 @@ extern int _getopt_internal (int ___argc, char **___argv,
/* Reentrant versions which can handle parsing multiple argument /* Reentrant versions which can handle parsing multiple argument
vectors at the same time. */ vectors at the same time. */
/* Describe how to deal with options that follow non-option ARGV-elements.
REQUIRE_ORDER means don't recognize them as options; stop option
processing when the first non-option is seen. This is what POSIX
specifies should happen.
PERMUTE means 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 that were not written
to expect this.
RETURN_IN_ORDER is an option available to programs that were
written to expect options and other ARGV-elements in any order
and that care about the ordering of the two. We describe each
non-option ARGV-element as if it were the argument of an option
with character code 1.
The special argument '--' forces an end of option-scanning regardless
of the value of 'ordering'. In the case of RETURN_IN_ORDER, only
'--' can cause 'getopt' to return -1 with 'optind' != ARGC. */
enum __ord
{
REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
};
/* Data type for reentrant functions. */ /* Data type for reentrant functions. */
struct _getopt_data struct _getopt_data
{ {
@ -53,58 +81,17 @@ struct _getopt_data
by advancing to the next ARGV-element. */ by advancing to the next ARGV-element. */
char *__nextchar; char *__nextchar;
/* Describe how to deal with options that follow non-option ARGV-elements. /* See __ord above. */
enum __ord __ordering;
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, or by calling getopt.
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
that were not written to expect this.
RETURN_IN_ORDER is an option available to programs that were
written to expect options and other ARGV-elements in any order
and that care about the ordering of the two. We describe each
non-option ARGV-element as if it were the argument of an option
with character code 1. Using `-' as the first character of the
list of option characters selects this mode of operation.
The special argument `--' forces an end of option-scanning regardless
of the value of `ordering'. In the case of RETURN_IN_ORDER, only
`--' can cause `getopt' to return -1 with `optind' != ARGC. */
enum
{
REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
} __ordering;
/* If the POSIXLY_CORRECT environment variable is set
or getopt was called. */
int __posixly_correct;
/* Handle permutation of arguments. */ /* Handle permutation of arguments. */
/* Describe the part of ARGV that contains non-options that have /* Describe the part of ARGV that contains non-options that have
been skipped. `first_nonopt' is the index in ARGV of the first been skipped. 'first_nonopt' is the index in ARGV of the first
of them; `last_nonopt' is the index after the last of them. */ of them; 'last_nonopt' is the index after the last of them. */
int __first_nonopt; int __first_nonopt;
int __last_nonopt; int __last_nonopt;
#if defined _LIBC && defined USE_NONOPTION_FLAGS
int __nonoption_flags_max_len;
int __nonoption_flags_len;
# endif
}; };
/* The initializer is necessary to set OPTIND and OPTERR to their /* The initializer is necessary to set OPTIND and OPTERR to their
@ -114,8 +101,8 @@ struct _getopt_data
extern int _getopt_internal_r (int ___argc, char **___argv, extern int _getopt_internal_r (int ___argc, char **___argv,
const char *__shortopts, const char *__shortopts,
const struct option *__longopts, int *__longind, const struct option *__longopts, int *__longind,
int __long_only, int __posixly_correct, int __long_only, struct _getopt_data *__data,
struct _getopt_data *__data); int __posixly_correct);
extern int _getopt_long_r (int ___argc, char **___argv, extern int _getopt_long_r (int ___argc, char **___argv,
const char *__shortopts, const char *__shortopts,