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1 | /* alias.h -- structure definitions. */ | |
2 | ||
3 | /* Copyright (C) 1987-2009 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 | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation, either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | Bash is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with Bash. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | #if !defined (_ALIAS_H_) | |
22 | #define _ALIAS_H_ | |
23 | ||
24 | #include "stdc.h" | |
25 | ||
26 | #include "hashlib.h" | |
27 | ||
28 | typedef 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. */ | |
39 | extern HASH_TABLE *aliases; | |
40 | ||
41 | extern 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. */ | |
45 | extern alias_t *find_alias __P((char *)); | |
46 | ||
47 | /* Return the value of the alias for NAME, or NULL if there is none. */ | |
48 | extern 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. */ | |
52 | extern 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. */ | |
56 | extern int remove_alias __P((char *)); | |
57 | ||
58 | /* Remove all aliases. */ | |
59 | extern void delete_all_aliases __P((void)); | |
60 | ||
61 | /* Return an array of all defined aliases. */ | |
62 | extern alias_t **all_aliases __P((void)); | |
63 | ||
64 | /* Expand a single word for aliases. */ | |
65 | extern char *alias_expand_word __P((char *)); | |
66 | ||
67 | /* Return a new line, with any aliases expanded. */ | |
68 | extern char *alias_expand __P((char *)); | |
69 | ||
70 | #endif /* _ALIAS_H_ */ |