/* Copyright (C) 1991-2021 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
<https://www.gnu.org/licenses/>. */
#ifndef _WORDEXP_H
#define _WORDEXP_H 1
#include <features.h>
#define __need_size_t
#include <stddef.h>
__BEGIN_DECLS
/* Bits set in the FLAGS argument to `wordexp'. */
enum
{
WRDE_DOOFFS = (1 << 0), /* Insert PWORDEXP->we_offs NULLs. */
WRDE_APPEND = (1 << 1), /* Append to results of a previous call. */
WRDE_NOCMD = (1 << 2), /* Don't do command substitution. */
WRDE_REUSE = (1 << 3), /* Reuse storage in PWORDEXP. */
WRDE_SHOWERR = (1 << 4), /* Don't redirect stderr to /dev/null. */
WRDE_UNDEF = (1 << 5), /* Error for expanding undefined variables. */
__WRDE_FLAGS = (WRDE_DOOFFS | WRDE_APPEND | WRDE_NOCMD
| WRDE_REUSE | WRDE_SHOWERR | WRDE_UNDEF)
};
/* Structure describing a word-expansion run. */
typedef struct
{
size_t we_wordc; /* Count of words matched. */
char **we_wordv; /* List of expanded words. */
size_t we_offs; /* Slots to reserve in `we_wordv'. */
} wordexp_t;
/* Possible nonzero return values from `wordexp'. */
enum
{
#ifdef __USE_XOPEN
WRDE_NOSYS = -1, /* Never used since we support `wordexp'. */
#endif
WRDE_NOSPACE = 1, /* Ran out of memory. */
WRDE_BADCHAR, /* A metachar appears in the wrong place. */
WRDE_BADVAL, /* Undefined var reference with WRDE_UNDEF. */
WRDE_CMDSUB, /* Command substitution with WRDE_NOCMD. */
WRDE_SYNTAX /* Shell syntax error. */
};
/* Do word expansion of WORDS into PWORDEXP. */
extern int wordexp (const char *__restrict __words,
wordexp_t *__restrict __pwordexp, int __flags);
/* Free the storage allocated by a `wordexp' call. */
extern void wordfree (wordexp_t *__wordexp) __THROW;
__END_DECLS
#endif /* wordexp.h */
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