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- /* alias.h -- structure definitions. */
-
- /* Copyright (C) 1987,1991 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 1, 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; see the file COPYING. If not, write to the Free
- Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #if !defined (_ALIAS_)
- #define _ALIAS_
-
- extern char *xmalloc (), *malloc ();
-
- #ifndef whitespace
- #define whitespace(c) (((c) == ' ') || ((c) == '\t'))
- #endif
-
- #ifndef savestring
- #define savestring(x) (char *)strcpy (xmalloc (1 + strlen (x)), (x))
- #endif
-
- typedef struct {
- char *name;
- char *value;
- } ASSOC;
-
- #ifndef NULL
- #define NULL 0x0
- #endif
-
- /* The list of known aliases. */
- extern ASSOC **aliases;
-
- /* Scan the list of aliases looking for one with NAME. Return NULL
- if the alias doesn't exist, else a pointer to the assoc. */
- extern ASSOC *find_alias ();
-
- /* Return the value of the alias for NAME, or NULL if there is none. */
- extern char *get_alias_value ();
-
- /* Make a new alias from NAME and VALUE. If NAME can be found,
- then replace its value. */
- extern void add_alias ();
-
- /* 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 ();
-
- /* Return a new line, with any aliases substituted. */
- extern char *alias_substitute ();
-
- #endif /* _ALIAS_ */
-