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/** \file wgetopt.h
The getopt librar for wide character strings.
This is simply the gnu getopt library, but converted for use with wchar_t instead of char. This is not usually useful since the argv array is always defined to be of type char**, but in fish, all internal commands use wide characters and hence this library is usefull.
*/
/* Declarations for getopt.
Copyright (C) 1989, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
This file is part of the GNU C Library. Its master source is NOT part of
the C library, however. The master source lives in /gd/gnu/lib.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#ifndef _WGETOPT_H
#define _WGETOPT_H 1
#ifdef __cplusplus
extern "C" {
#endif
/** For communication from `getopt' to the caller.
When `getopt' finds an option that takes an argument,
the argument value is returned here.
Also, when `ordering' is RETURN_IN_ORDER,
each non-option ARGV-element is returned here. */
extern wchar_t *woptarg;
/** Index in ARGV of the next element to be scanned.
This is used for communication to and from the caller
and for communication between successive calls to `getopt'.
On entry to `getopt', zero means this is the first call; initialize.
When `getopt' returns EOF, this is the index of the first of the
non-option elements that the caller should itself scan.
Otherwise, `optind' communicates from one call to the next
how much of ARGV has been scanned so far. */
extern int woptind;
/** Callers store zero here to inhibit the error message `getopt' prints
for unrecognized options. */
extern int wopterr;
/** Set to an option character which was unrecognized. */
extern int woptopt;
/** Describe the long-named options requested by the application.
The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
of `struct option' terminated by an element containing a name which is
zero.
The field `has_arg' is:
no_argument (or 0) if the option does not take an argument,
required_argument (or 1) if the option requires an argument,
optional_argument (or 2) if the option takes an optional argument.
If the field `flag' is not NULL, it points to a variable that is set
to the value given in the field `val' when the option is found, but
left unchanged if the option is not found.
To have a long-named option do something other than set an `int' to
a compiled-in constant, such as set a value from `optarg', set the
option's `flag' field to zero and its `val' field to a nonzero
value (the equivalent single-letter option character, if there is
one). For long options that have a zero `flag' field, `getopt'
returns the contents of the `val' field. */
struct woption
{
#if defined (__STDC__) && __STDC__
const wchar_t *name;
#else
wchar_t *name;
#endif
/* has_arg can't be an enum because some compilers complain about
type mismatches in all the code that assumes it is an int. */
int has_arg;
int *flag;
int val;
};
/* Names for the values of the `has_arg' field of `struct option'. */
#define no_argument 0
#define required_argument 1
#define optional_argument 2
#if defined (__STDC__) && __STDC__
#ifdef __GNU_LIBRARY__
/* Get options from argument list */
extern int wgetopt (int argc, wchar_t *const *argv, const wchar_t *shortopts);
#else /* not __GNU_LIBRARY__ */
/* Get options from argument list */
extern int wgetopt ();
#endif /* __GNU_LIBRARY__ */
/* Get options from argument list */
extern int wgetopt_long (int argc, wchar_t *const *argv, const wchar_t *shortopts,
const struct woption *longopts, int *longind);
/* Get options from argument list */
extern int wgetopt_long_only (int argc, wchar_t *const *argv,
const wchar_t *shortopts,
const struct woption *longopts, int *longind);
/** Internal only. Users should not call this directly. */
extern int _wgetopt_internal (int argc, wchar_t *const *argv,
const wchar_t *shortopts,
const struct woption *longopts, int *longind,
int long_only);
#else /* not __STDC__ */
/* Get options from argument list */
extern int wgetopt ();
/* Get options from argument list */
extern int wgetopt_long ();
/* Get options from argument list */
extern int wgetopt_long_only ();
/* Get options from argument list */
extern int _wgetopt_internal ();
#endif /* __STDC__ */
#ifdef __cplusplus
}
#endif
#endif /* _WGETOPT_H */
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