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Diffstat (limited to '')
| -rw-r--r-- | alias.h | 73 |
1 files changed, 73 insertions, 0 deletions
@@ -0,0 +1,73 @@ +/* alias.h -- structure definitions. */ + +/* Copyright (C) 1987-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + Bash 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#if !defined (_ALIAS_H_) +#define _ALIAS_H_ + +#include "stdc.h" + +#include "hashlib.h" + +typedef struct alias { + char *name; + char *value; + char flags; +} alias_t; + +/* Values for `flags' member of struct alias. */ +#define AL_EXPANDNEXT 0x1 +#define AL_BEINGEXPANDED 0x2 + +/* The list of known aliases. */ +extern HASH_TABLE *aliases; + +extern void initialize_aliases PARAMS((void)); + +/* Scan the list of aliases looking for one with NAME. Return NULL + if the alias doesn't exist, else a pointer to the alias. */ +extern alias_t *find_alias PARAMS((char *)); + +/* Return the value of the alias for NAME, or NULL if there is none. */ +extern char *get_alias_value PARAMS((char *)); + +/* Make a new alias from NAME and VALUE. If NAME can be found, + then replace its value. */ +extern void add_alias PARAMS((char *, char *)); + +/* Remove the alias with name NAME from the alias list. Returns + the index of the removed alias, or -1 if the alias didn't exist. */ +extern int remove_alias PARAMS((char *)); + +/* Remove all aliases. */ +extern void delete_all_aliases PARAMS((void)); + +/* Return an array of all defined aliases. */ +extern alias_t **all_aliases PARAMS((void)); + +/* Expand a single word for aliases. */ +extern char *alias_expand_word PARAMS((char *)); + +/* Return a new line, with any aliases expanded. */ +extern char *alias_expand PARAMS((char *)); + +/* Helper definition for the parser */ +extern void clear_string_list_expander PARAMS((alias_t *)); + +#endif /* _ALIAS_H_ */ |