1/* alias.h -- structure definitions. */ 2 3/* Copyright (C) 1987,1991 Free Software Foundation, Inc. 4 5 This file is part of GNU Bash, the Bourne Again SHell. 6 7 Bash is free software; you can redistribute it and/or modify it 8 under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 1, or (at your option) 10 any later version. 11 12 Bash is distributed in the hope that it will be useful, but WITHOUT 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 15 License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with Bash; see the file COPYING. If not, write to the Free 19 Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ 20 21#if !defined (_ALIAS_H_) 22#define _ALIAS_H_ 23 24#include "stdc.h" 25 26#include "hashlib.h" 27 28typedef struct alias { 29 char *name; 30 char *value; 31 char flags; 32} alias_t; 33 34/* Values for `flags' member of struct alias. */ 35#define AL_EXPANDNEXT 0x1 36#define AL_BEINGEXPANDED 0x2 37 38/* The list of known aliases. */ 39extern HASH_TABLE *aliases; 40 41extern void initialize_aliases __P((void)); 42 43/* Scan the list of aliases looking for one with NAME. Return NULL 44 if the alias doesn't exist, else a pointer to the alias. */ 45extern alias_t *find_alias __P((char *)); 46 47/* Return the value of the alias for NAME, or NULL if there is none. */ 48extern char *get_alias_value __P((char *)); 49 50/* Make a new alias from NAME and VALUE. If NAME can be found, 51 then replace its value. */ 52extern void add_alias __P((char *, char *)); 53 54/* Remove the alias with name NAME from the alias list. Returns 55 the index of the removed alias, or -1 if the alias didn't exist. */ 56extern int remove_alias __P((char *)); 57 58/* Remove all aliases. */ 59extern void delete_all_aliases __P((void)); 60 61/* Return an array of all defined aliases. */ 62extern alias_t **all_aliases __P((void)); 63 64/* Expand a single word for aliases. */ 65extern char *alias_expand_word __P((char *)); 66 67/* Return a new line, with any aliases expanded. */ 68extern char *alias_expand __P((char *)); 69 70#endif /* _ALIAS_H_ */ 71