1 /* tilde.h: Externally available variables and function in libtilde.a. */
3 /* Copyright (C) 1992-2009 Free Software Foundation, Inc.
5 This file contains the Readline Library (Readline), a set of
6 routines for providing Emacs style line input to programs that ask
9 Readline is free software: you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation, either version 3 of the License, or
12 (at your option) any later version.
14 Readline is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with Readline. If not, see <http://www.gnu.org/licenses/>.
23 #if !defined (_TILDE_H_)
30 /* A function can be defined using prototypes and compile on both ANSI C
31 and traditional C compilers with something like this:
32 extern char *func PARAMS((char *, char *, int)); */
35 # if defined (__STDC__) || defined (__GNUC__) || defined (__cplusplus)
36 # define PARAMS(protos) protos
38 # define PARAMS(protos) ()
42 typedef char *tilde_hook_func_t PARAMS((char *));
44 /* If non-null, this contains the address of a function that the application
45 wants called before trying the standard tilde expansions. The function
46 is called with the text sans tilde, and returns a malloc()'ed string
47 which is the expansion, or a NULL pointer if the expansion fails. */
48 extern tilde_hook_func_t *tilde_expansion_preexpansion_hook;
50 /* If non-null, this contains the address of a function to call if the
51 standard meaning for expanding a tilde fails. The function is called
52 with the text (sans tilde, as in "foo"), and returns a malloc()'ed string
53 which is the expansion, or a NULL pointer if there is no expansion. */
54 extern tilde_hook_func_t *tilde_expansion_failure_hook;
56 /* When non-null, this is a NULL terminated array of strings which
57 are duplicates for a tilde prefix. Bash uses this to expand
59 extern char **tilde_additional_prefixes;
61 /* When non-null, this is a NULL terminated array of strings which match
62 the end of a username, instead of just "/". Bash sets this to
64 extern char **tilde_additional_suffixes;
66 /* Return a new string which is the result of tilde expanding STRING. */
67 extern char *tilde_expand PARAMS((const char *));
69 /* Do the work of tilde expansion on FILENAME. FILENAME starts with a
70 tilde. If there is no expansion, call tilde_expansion_failure_hook. */
71 extern char *tilde_expand_word PARAMS((const char *));
73 /* Find the portion of the string beginning with ~ that should be expanded. */
74 extern char *tilde_find_word PARAMS((const char *, int, int *));
80 #endif /* _TILDE_H_ */