mirror of git://sourceware.org/git/glibc.git
131 lines
4.6 KiB
C
131 lines
4.6 KiB
C
/* Internal declarations for getopt.
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Copyright (C) 1989-1994,1996-1999,2001,2003,2004,2009
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _GETOPT_INT_H
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#define _GETOPT_INT_H 1
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extern int _getopt_internal (int ___argc, char *const *___argv,
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const char *__shortopts,
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const struct option *__longopts, int *__longind,
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int __long_only, int posixly_correct);
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/* Reentrant versions which can handle parsing multiple argument
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vectors at the same time. */
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/* Data type for reentrant functions. */
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struct _getopt_data
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{
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/* These have exactly the same meaning as the corresponding global
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variables, except that they are used for the reentrant
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versions of getopt. */
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int optind;
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int opterr;
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int optopt;
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char *optarg;
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/* Internal members. */
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/* True if the internal members have been initialized. */
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int __initialized;
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/* The next char to be scanned in the option-element
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in which the last option character we returned was found.
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This allows us to pick up the scan where we left off.
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If this is zero, or a null string, it means resume the scan
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by advancing to the next ARGV-element. */
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char *__nextchar;
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/* Describe how to deal with options that follow non-option ARGV-elements.
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If the caller did not specify anything,
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the default is REQUIRE_ORDER if the environment variable
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POSIXLY_CORRECT is defined, PERMUTE otherwise.
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REQUIRE_ORDER means don't recognize them as options;
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stop option processing when the first non-option is seen.
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This is what Unix does.
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This mode of operation is selected by either setting the environment
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variable POSIXLY_CORRECT, or using `+' as the first character
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of the list of option characters.
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PERMUTE is the default. We permute the contents of ARGV as we
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scan, so that eventually all the non-options are at the end.
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This allows options to be given in any order, even with programs
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that were not written to expect this.
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RETURN_IN_ORDER is an option available to programs that were
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written to expect options and other ARGV-elements in any order
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and that care about the ordering of the two. We describe each
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non-option ARGV-element as if it were the argument of an option
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with character code 1. Using `-' as the first character of the
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list of option characters selects this mode of operation.
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The special argument `--' forces an end of option-scanning regardless
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of the value of `ordering'. In the case of RETURN_IN_ORDER, only
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`--' can cause `getopt' to return -1 with `optind' != ARGC. */
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enum
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{
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REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
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} __ordering;
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/* If the POSIXLY_CORRECT environment variable is set. */
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int __posixly_correct;
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/* Handle permutation of arguments. */
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/* Describe the part of ARGV that contains non-options that have
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been skipped. `first_nonopt' is the index in ARGV of the first
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of them; `last_nonopt' is the index after the last of them. */
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int __first_nonopt;
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int __last_nonopt;
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#if defined _LIBC && defined USE_NONOPTION_FLAGS
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int __nonoption_flags_max_len;
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int __nonoption_flags_len;
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# endif
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};
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/* The initializer is necessary to set OPTIND and OPTERR to their
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default values and to clear the initialization flag. */
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#define _GETOPT_DATA_INITIALIZER { 1, 1 }
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extern int _getopt_internal_r (int ___argc, char *const *___argv,
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const char *__shortopts,
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const struct option *__longopts, int *__longind,
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int __long_only, struct _getopt_data *__data,
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int posixly_correct);
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extern int _getopt_long_r (int ___argc, char *const *___argv,
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const char *__shortopts,
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const struct option *__longopts, int *__longind,
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struct _getopt_data *__data);
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extern int _getopt_long_only_r (int ___argc, char *const *___argv,
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const char *__shortopts,
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const struct option *__longopts,
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int *__longind,
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struct _getopt_data *__data);
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#endif /* getopt_int.h */
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