/* Copyright (C) 1991-2018 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 _WORDEXP_H

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#define _WORDEXP_H 1

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#include <features.h>

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#define __need_size_t

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#include <stddef.h>

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__BEGIN_DECLS

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/* Bits set in the FLAGS argument to `wordexp'. */

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enum

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{

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WRDE_DOOFFS = (1 << 0), /* Insert PWORDEXP->we_offs NULLs. */

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WRDE_APPEND = (1 << 1), /* Append to results of a previous call. */

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WRDE_NOCMD = (1 << 2), /* Don't do command substitution. */

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WRDE_REUSE = (1 << 3), /* Reuse storage in PWORDEXP. */

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WRDE_SHOWERR = (1 << 4), /* Don't redirect stderr to /dev/null. */

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WRDE_UNDEF = (1 << 5), /* Error for expanding undefined variables. */

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__WRDE_FLAGS = (WRDE_DOOFFS | WRDE_APPEND | WRDE_NOCMD |

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WRDE_REUSE | WRDE_SHOWERR | WRDE_UNDEF)

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};

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/* Structure describing a word-expansion run. */

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typedef struct

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{

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size_t we_wordc; /* Count of words matched. */

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char **we_wordv; /* List of expanded words. */

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size_t we_offs; /* Slots to reserve in `we_wordv'. */

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} wordexp_t;

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/* Possible nonzero return values from `wordexp'. */

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enum

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{

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#ifdef __USE_XOPEN

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WRDE_NOSYS = -1, /* Never used since we support `wordexp'. */

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#endif

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WRDE_NOSPACE = 1, /* Ran out of memory. */

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WRDE_BADCHAR, /* A metachar appears in the wrong place. */

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WRDE_BADVAL, /* Undefined var reference with WRDE_UNDEF. */

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WRDE_CMDSUB, /* Command substitution with WRDE_NOCMD. */

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WRDE_SYNTAX /* Shell syntax error. */

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};

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/* Do word expansion of WORDS into PWORDEXP. */

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extern int wordexp (const char *__restrict __words,

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wordexp_t *__restrict __pwordexp, int __flags);

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/* Free the storage allocated by a `wordexp' call. */

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extern void wordfree (wordexp_t *__wordexp) __THROW;

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__END_DECLS

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#endif /* wordexp.h */

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