1 /* Copyright (C) 1991, 92, 1996-1999, 2001, 2003 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19 #ifndef _WORDEXP_H 20 #define _WORDEXP_H 1 21 22 #include <features.h> 23 #define __need_size_t 24 #include <stddef.h> 25 26 __BEGIN_DECLS 27 28 /* Bits set in the FLAGS argument to `wordexp'. */ 29 enum 30 { 31 WRDE_DOOFFS = (1 << 0), /* Insert PWORDEXP->we_offs NULLs. */ 32 WRDE_APPEND = (1 << 1), /* Append to results of a previous call. */ 33 WRDE_NOCMD = (1 << 2), /* Don't do command substitution. */ 34 WRDE_REUSE = (1 << 3), /* Reuse storage in PWORDEXP. */ 35 WRDE_SHOWERR = (1 << 4), /* Don't redirect stderr to /dev/null. */ 36 WRDE_UNDEF = (1 << 5), /* Error for expanding undefined variables. */ 37 __WRDE_FLAGS = (WRDE_DOOFFS | WRDE_APPEND | WRDE_NOCMD | 38 WRDE_REUSE | WRDE_SHOWERR | WRDE_UNDEF) 39 }; 40 41 /* Structure describing a word-expansion run. */ 42 typedef struct 43 { 44 size_t we_wordc; /* Count of words matched. */ 45 char **we_wordv; /* List of expanded words. */ 46 size_t we_offs; /* Slots to reserve in `we_wordv'. */ 47 } wordexp_t; 48 49 /* Possible nonzero return values from `wordexp'. */ 50 enum 51 { 52 #ifdef __USE_XOPEN 53 WRDE_NOSYS = -1, /* Never used since we support `wordexp'. */ 54 #endif 55 WRDE_NOSPACE = 1, /* Ran out of memory. */ 56 WRDE_BADCHAR, /* A metachar appears in the wrong place. */ 57 WRDE_BADVAL, /* Undefined var reference with WRDE_UNDEF. */ 58 WRDE_CMDSUB, /* Command substitution with WRDE_NOCMD. */ 59 WRDE_SYNTAX /* Shell syntax error. */ 60 }; 61 62 /* Do word expansion of WORDS into PWORDEXP. */ 63 extern int wordexp (__const char *__restrict __words, 64 wordexp_t *__restrict __pwordexp, int __flags); 65 66 /* Free the storage allocated by a `wordexp' call. */ 67 extern void wordfree (wordexp_t *__wordexp) __THROW; 68 69 __END_DECLS 70 71 #endif /* wordexp.h */ 72