1 /* bashline.c -- Bash's interface to the readline library. */
3 /* Copyright (C) 1987-2013 Free Software Foundation, Inc.
5 This file is part of GNU Bash, the Bourne Again SHell.
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.
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.
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/>.
23 #if defined (READLINE)
25 #include "bashtypes.h"
26 #include "posixstat.h"
28 #if defined (HAVE_UNISTD_H)
32 #if defined (HAVE_GRP_H)
36 #if defined (HAVE_NETDB_H)
43 #include "chartypes.h"
52 #include "execute_cmd.h"
58 #include "builtins/common.h"
60 #include <readline/rlconf.h>
61 #include <readline/readline.h>
62 #include <readline/history.h>
64 #include <glob/glob.h>
70 #if defined (PROGRAMMABLE_COMPLETION)
71 # include "pcomplete.h"
74 /* These should agree with the defines for emacs_mode and vi_mode in
75 rldefs.h, even though that's not a public readline header file. */
76 #ifndef EMACS_EDITING_MODE
77 # define NO_EDITING_MODE -1
78 # define EMACS_EDITING_MODE 1
79 # define VI_EDITING_MODE 0
82 #define RL_BOOLEAN_VARIABLE_VALUE(s) ((s)[0] == 'o' && (s)[1] == 'n' && (s)[2] == '\0')
84 #if defined (BRACE_COMPLETION)
85 extern int bash_brace_completion
__P((int, int));
86 #endif /* BRACE_COMPLETION */
88 /* To avoid including curses.h/term.h/termcap.h and that whole mess. */
90 extern int tputs
__P((const char *string
, int nlines
, void (*outx
)(int)));
92 extern int tputs
__P((const char *string
, int nlines
, int (*outx
)(int)));
95 /* Forward declarations */
97 /* Functions bound to keys in Readline for Bash users. */
98 static int shell_expand_line
__P((int, int));
99 static int display_shell_version
__P((int, int));
100 static int operate_and_get_next
__P((int, int));
102 static int bash_ignore_filenames
__P((char **));
103 static int bash_ignore_everything
__P((char **));
105 #if defined (BANG_HISTORY)
106 static char *history_expand_line_internal
__P((char *));
107 static int history_expand_line
__P((int, int));
108 static int tcsh_magic_space
__P((int, int));
109 #endif /* BANG_HISTORY */
111 static int alias_expand_line
__P((int, int));
113 #if defined (BANG_HISTORY) && defined (ALIAS)
114 static int history_and_alias_expand_line
__P((int, int));
117 static int bash_forward_shellword
__P((int, int));
118 static int bash_backward_shellword
__P((int, int));
119 static int bash_kill_shellword
__P((int, int));
120 static int bash_backward_kill_shellword
__P((int, int));
122 /* Helper functions for Readline. */
123 static char *restore_tilde
__P((char *, char *));
124 static char *maybe_restore_tilde
__P((char *, char *));
126 static char *bash_filename_rewrite_hook
__P((char *, int));
128 static void bash_directory_expansion
__P((char **));
129 static int bash_filename_stat_hook
__P((char **));
130 static int bash_command_name_stat_hook
__P((char **));
131 static int bash_directory_completion_hook
__P((char **));
132 static int filename_completion_ignore
__P((char **));
133 static int bash_push_line
__P((void));
135 static int executable_completion
__P((const char *, int));
137 static rl_icppfunc_t
*save_directory_hook
__P((void));
138 static void restore_directory_hook
__P((rl_icppfunc_t
));
140 static void cleanup_expansion_error
__P((void));
141 static void maybe_make_readline_line
__P((char *));
142 static void set_up_new_line
__P((char *));
144 static int check_redir
__P((int));
145 static char **attempt_shell_completion
__P((const char *, int, int));
146 static char *variable_completion_function
__P((const char *, int));
147 static char *hostname_completion_function
__P((const char *, int));
148 static char *command_subst_completion_function
__P((const char *, int));
150 static void build_history_completion_array
__P((void));
151 static char *history_completion_generator
__P((const char *, int));
152 static int dynamic_complete_history
__P((int, int));
153 static int bash_dabbrev_expand
__P((int, int));
155 static void initialize_hostname_list
__P((void));
156 static void add_host_name
__P((char *));
157 static void snarf_hosts_from_file
__P((char *));
158 static char **hostnames_matching
__P((char *));
160 static void _ignore_completion_names
__P((char **, sh_ignore_func_t
*));
161 static int name_is_acceptable
__P((const char *));
162 static int test_for_directory
__P((const char *));
163 static int return_zero
__P((const char *));
165 static char *bash_dequote_filename
__P((char *, int));
166 static char *quote_word_break_chars
__P((char *));
167 static void set_filename_bstab
__P((const char *));
168 static char *bash_quote_filename
__P((char *, int, char *));
171 static void putx
__P((int));
173 static int putx
__P((int));
175 static int bash_execute_unix_command
__P((int, int));
176 static void init_unix_command_map
__P((void));
177 static int isolate_sequence
__P((char *, int, int, int *));
179 static int set_saved_history
__P((void));
182 static int posix_edit_macros
__P((int, int));
185 static int bash_event_hook
__P((void));
187 #if defined (PROGRAMMABLE_COMPLETION)
188 static int find_cmd_start
__P((int));
189 static int find_cmd_end
__P((int));
190 static char *find_cmd_name
__P((int, int *, int *));
191 static char *prog_complete_return
__P((const char *, int));
193 static char **prog_complete_matches
;
196 /* Variables used here but defined in other files. */
197 #if defined (BANG_HISTORY)
198 extern int hist_verify
;
201 extern int current_command_line_count
, saved_command_line_count
;
202 extern int last_command_exit_value
;
203 extern int array_needs_making
;
204 extern int posixly_correct
, no_symbolic_links
;
205 extern int sigalrm_seen
;
206 extern char *current_prompt_string
, *ps1_prompt
;
207 extern STRING_INT_ALIST word_token_alist
[];
208 extern sh_builtin_func_t
*last_shell_builtin
, *this_shell_builtin
;
210 /* SPECIFIC_COMPLETION_FUNCTIONS specifies that we have individual
211 completion functions which indicate what type of completion should be
212 done (at or before point) that can be bound to key sequences with
213 the readline library. */
214 #define SPECIFIC_COMPLETION_FUNCTIONS
216 #if defined (SPECIFIC_COMPLETION_FUNCTIONS)
217 static int bash_specific_completion
__P((int, rl_compentry_func_t
*));
219 static int bash_complete_filename_internal
__P((int));
220 static int bash_complete_username_internal
__P((int));
221 static int bash_complete_hostname_internal
__P((int));
222 static int bash_complete_variable_internal
__P((int));
223 static int bash_complete_command_internal
__P((int));
225 static int bash_complete_filename
__P((int, int));
226 static int bash_possible_filename_completions
__P((int, int));
227 static int bash_complete_username
__P((int, int));
228 static int bash_possible_username_completions
__P((int, int));
229 static int bash_complete_hostname
__P((int, int));
230 static int bash_possible_hostname_completions
__P((int, int));
231 static int bash_complete_variable
__P((int, int));
232 static int bash_possible_variable_completions
__P((int, int));
233 static int bash_complete_command
__P((int, int));
234 static int bash_possible_command_completions
__P((int, int));
236 static char *glob_complete_word
__P((const char *, int));
237 static int bash_glob_completion_internal
__P((int));
238 static int bash_glob_complete_word
__P((int, int));
239 static int bash_glob_expand_word
__P((int, int));
240 static int bash_glob_list_expansions
__P((int, int));
242 #endif /* SPECIFIC_COMPLETION_FUNCTIONS */
244 static int edit_and_execute_command
__P((int, int, int, char *));
245 #if defined (VI_MODE)
246 static int vi_edit_and_execute_command
__P((int, int));
247 static int bash_vi_complete
__P((int, int));
249 static int emacs_edit_and_execute_command
__P((int, int));
251 /* Non-zero once initalize_readline () has been called. */
252 int bash_readline_initialized
= 0;
254 /* If non-zero, we do hostname completion, breaking words at `@' and
255 trying to complete the stuff after the `@' from our own internal
257 int perform_hostname_completion
= 1;
259 /* If non-zero, we don't do command completion on an empty line. */
260 int no_empty_command_completion
;
262 /* Set FORCE_FIGNORE if you want to honor FIGNORE even if it ignores the
263 only possible matches. Set to 0 if you want to match filenames if they
264 are the only possible matches, even if FIGNORE says to. */
265 int force_fignore
= 1;
267 /* Perform spelling correction on directory names during word completion */
268 int dircomplete_spelling
= 0;
270 /* Expand directory names during word/filename completion. */
271 #if DIRCOMPLETE_EXPAND_DEFAULT
272 int dircomplete_expand
= 1;
273 int dircomplete_expand_relpath
= 1;
275 int dircomplete_expand
= 0;
276 int dircomplete_expand_relpath
= 0;
279 /* When non-zero, perform `normal' shell quoting on completed filenames
280 even when the completed name contains a directory name with a shell
281 variable referene, so dollar signs in a filename get quoted appropriately.
282 Set to zero to remove dollar sign (and braces or parens as needed) from
283 the set of characters that will be quoted. */
284 int complete_fullquote
= 1;
286 static char *bash_completer_word_break_characters
= " \t\n\"'@><=;|&(:";
287 static char *bash_nohostname_word_break_characters
= " \t\n\"'><=;|&(:";
290 static const char *default_filename_quote_characters
= " \t\n\\\"'@<>=;|&()#$`?*[!:{~"; /*}*/
291 static char *custom_filename_quote_characters
= 0;
292 static char filename_bstab
[256];
294 static rl_hook_func_t
*old_rl_startup_hook
= (rl_hook_func_t
*)NULL
;
296 static int dot_in_path
= 0;
298 /* Set to non-zero when dabbrev-expand is running */
299 static int dabbrev_expand_active
= 0;
301 /* What kind of quoting is performed by bash_quote_filename:
302 COMPLETE_DQUOTE = double-quoting the filename
303 COMPLETE_SQUOTE = single_quoting the filename
304 COMPLETE_BSQUOTE = backslash-quoting special chars in the filename
306 #define COMPLETE_DQUOTE 1
307 #define COMPLETE_SQUOTE 2
308 #define COMPLETE_BSQUOTE 3
309 static int completion_quoting_style
= COMPLETE_BSQUOTE
;
311 /* Flag values for the final argument to bash_default_completion */
312 #define DEFCOMP_CMDPOS 1
314 /* Change the readline VI-mode keymaps into or out of Posix.2 compliance.
315 Called when the shell is put into or out of `posix' mode. */
317 posix_readline_initialize (on_or_off
)
321 rl_variable_bind ("comment-begin", "#");
322 #if defined (VI_MODE)
323 rl_bind_key_in_map (CTRL ('I'), on_or_off
? rl_insert
: rl_complete
, vi_insertion_keymap
);
328 reset_completer_word_break_chars ()
330 rl_completer_word_break_characters
= perform_hostname_completion
? savestring (bash_completer_word_break_characters
) : savestring (bash_nohostname_word_break_characters
);
333 /* When this function returns, rl_completer_word_break_characters points to
334 dynamically allocated memory. */
336 enable_hostname_completion (on_or_off
)
340 char *at
, *nv
, *nval
;
342 old_value
= perform_hostname_completion
;
346 perform_hostname_completion
= 1;
347 rl_special_prefixes
= "$@";
351 perform_hostname_completion
= 0;
352 rl_special_prefixes
= "$";
355 /* Now we need to figure out how to appropriately modify and assign
356 rl_completer_word_break_characters depending on whether we want
357 hostname completion on or off. */
359 /* If this is the first time this has been called
360 (bash_readline_initialized == 0), use the sames values as before, but
361 allocate new memory for rl_completer_word_break_characters. */
363 if (bash_readline_initialized
== 0 &&
364 (rl_completer_word_break_characters
== 0 ||
365 rl_completer_word_break_characters
== rl_basic_word_break_characters
))
368 rl_completer_word_break_characters
= savestring (bash_completer_word_break_characters
);
370 rl_completer_word_break_characters
= savestring (bash_nohostname_word_break_characters
);
374 /* See if we have anything to do. */
375 at
= strchr (rl_completer_word_break_characters
, '@');
376 if ((at
== 0 && on_or_off
== 0) || (at
!= 0 && on_or_off
!= 0))
379 /* We have something to do. Do it. */
380 nval
= (char *)xmalloc (strlen (rl_completer_word_break_characters
) + 1 + on_or_off
);
384 /* Turn it off -- just remove `@' from word break chars. We want
385 to remove all occurrences of `@' from the char list, so we loop
386 rather than just copy the rest of the list over AT. */
387 for (nv
= nval
, at
= rl_completer_word_break_characters
; *at
; )
397 strcpy (nval
+ 1, rl_completer_word_break_characters
);
400 free (rl_completer_word_break_characters
);
401 rl_completer_word_break_characters
= nval
;
407 /* Called once from parse.y if we are going to use readline. */
409 initialize_readline ()
411 rl_command_func_t
*func
;
414 if (bash_readline_initialized
)
417 rl_terminal_name
= get_string_value ("TERM");
419 rl_outstream
= stderr
;
421 /* Allow conditional parsing of the ~/.inputrc file. */
422 rl_readline_name
= "Bash";
424 /* Add bindable names before calling rl_initialize so they may be
425 referenced in the various inputrc files. */
426 rl_add_defun ("shell-expand-line", shell_expand_line
, -1);
428 rl_add_defun ("history-expand-line", history_expand_line
, -1);
429 rl_add_defun ("magic-space", tcsh_magic_space
, -1);
432 rl_add_defun ("shell-forward-word", bash_forward_shellword
, -1);
433 rl_add_defun ("shell-backward-word", bash_backward_shellword
, -1);
434 rl_add_defun ("shell-kill-word", bash_kill_shellword
, -1);
435 rl_add_defun ("shell-backward-kill-word", bash_backward_kill_shellword
, -1);
438 rl_add_defun ("alias-expand-line", alias_expand_line
, -1);
440 rl_add_defun ("history-and-alias-expand-line", history_and_alias_expand_line
, -1);
444 /* Backwards compatibility. */
445 rl_add_defun ("insert-last-argument", rl_yank_last_arg
, -1);
447 rl_add_defun ("operate-and-get-next", operate_and_get_next
, -1);
448 rl_add_defun ("display-shell-version", display_shell_version
, -1);
449 rl_add_defun ("edit-and-execute-command", emacs_edit_and_execute_command
, -1);
451 #if defined (BRACE_COMPLETION)
452 rl_add_defun ("complete-into-braces", bash_brace_completion
, -1);
455 #if defined (SPECIFIC_COMPLETION_FUNCTIONS)
456 rl_add_defun ("complete-filename", bash_complete_filename
, -1);
457 rl_add_defun ("possible-filename-completions", bash_possible_filename_completions
, -1);
458 rl_add_defun ("complete-username", bash_complete_username
, -1);
459 rl_add_defun ("possible-username-completions", bash_possible_username_completions
, -1);
460 rl_add_defun ("complete-hostname", bash_complete_hostname
, -1);
461 rl_add_defun ("possible-hostname-completions", bash_possible_hostname_completions
, -1);
462 rl_add_defun ("complete-variable", bash_complete_variable
, -1);
463 rl_add_defun ("possible-variable-completions", bash_possible_variable_completions
, -1);
464 rl_add_defun ("complete-command", bash_complete_command
, -1);
465 rl_add_defun ("possible-command-completions", bash_possible_command_completions
, -1);
466 rl_add_defun ("glob-complete-word", bash_glob_complete_word
, -1);
467 rl_add_defun ("glob-expand-word", bash_glob_expand_word
, -1);
468 rl_add_defun ("glob-list-expansions", bash_glob_list_expansions
, -1);
471 rl_add_defun ("dynamic-complete-history", dynamic_complete_history
, -1);
472 rl_add_defun ("dabbrev-expand", bash_dabbrev_expand
, -1);
474 /* Bind defaults before binding our custom shell keybindings. */
475 if (RL_ISSTATE(RL_STATE_INITIALIZED
) == 0)
478 /* Bind up our special shell functions. */
479 rl_bind_key_if_unbound_in_map (CTRL('E'), shell_expand_line
, emacs_meta_keymap
);
482 rl_bind_key_if_unbound_in_map ('^', history_expand_line
, emacs_meta_keymap
);
485 rl_bind_key_if_unbound_in_map (CTRL ('O'), operate_and_get_next
, emacs_standard_keymap
);
486 rl_bind_key_if_unbound_in_map (CTRL ('V'), display_shell_version
, emacs_ctlx_keymap
);
488 /* In Bash, the user can switch editing modes with "set -o [vi emacs]",
489 so it is not necessary to allow C-M-j for context switching. Turn
490 off this occasionally confusing behaviour. */
493 func
= rl_function_of_keyseq (kseq
, emacs_meta_keymap
, (int *)NULL
);
494 if (func
== rl_vi_editing_mode
)
495 rl_unbind_key_in_map (CTRL('J'), emacs_meta_keymap
);
497 func
= rl_function_of_keyseq (kseq
, emacs_meta_keymap
, (int *)NULL
);
498 if (func
== rl_vi_editing_mode
)
499 rl_unbind_key_in_map (CTRL('M'), emacs_meta_keymap
);
500 #if defined (VI_MODE)
501 rl_unbind_key_in_map (CTRL('E'), vi_movement_keymap
);
504 #if defined (BRACE_COMPLETION)
505 rl_bind_key_if_unbound_in_map ('{', bash_brace_completion
, emacs_meta_keymap
); /*}*/
506 #endif /* BRACE_COMPLETION */
508 #if defined (SPECIFIC_COMPLETION_FUNCTIONS)
509 rl_bind_key_if_unbound_in_map ('/', bash_complete_filename
, emacs_meta_keymap
);
510 rl_bind_key_if_unbound_in_map ('/', bash_possible_filename_completions
, emacs_ctlx_keymap
);
512 /* Have to jump through hoops here because there is a default binding for
513 M-~ (rl_tilde_expand) */
516 func
= rl_function_of_keyseq (kseq
, emacs_meta_keymap
, (int *)NULL
);
517 if (func
== 0 || func
== rl_tilde_expand
)
518 rl_bind_keyseq_in_map (kseq
, bash_complete_username
, emacs_meta_keymap
);
520 rl_bind_key_if_unbound_in_map ('~', bash_possible_username_completions
, emacs_ctlx_keymap
);
522 rl_bind_key_if_unbound_in_map ('@', bash_complete_hostname
, emacs_meta_keymap
);
523 rl_bind_key_if_unbound_in_map ('@', bash_possible_hostname_completions
, emacs_ctlx_keymap
);
525 rl_bind_key_if_unbound_in_map ('$', bash_complete_variable
, emacs_meta_keymap
);
526 rl_bind_key_if_unbound_in_map ('$', bash_possible_variable_completions
, emacs_ctlx_keymap
);
528 rl_bind_key_if_unbound_in_map ('!', bash_complete_command
, emacs_meta_keymap
);
529 rl_bind_key_if_unbound_in_map ('!', bash_possible_command_completions
, emacs_ctlx_keymap
);
531 rl_bind_key_if_unbound_in_map ('g', bash_glob_complete_word
, emacs_meta_keymap
);
532 rl_bind_key_if_unbound_in_map ('*', bash_glob_expand_word
, emacs_ctlx_keymap
);
533 rl_bind_key_if_unbound_in_map ('g', bash_glob_list_expansions
, emacs_ctlx_keymap
);
535 #endif /* SPECIFIC_COMPLETION_FUNCTIONS */
539 func
= rl_function_of_keyseq (kseq
, emacs_meta_keymap
, (int *)NULL
);
540 if (func
== 0 || func
== rl_tab_insert
)
541 rl_bind_key_in_map (TAB
, dynamic_complete_history
, emacs_meta_keymap
);
543 /* Tell the completer that we want a crack first. */
544 rl_attempted_completion_function
= attempt_shell_completion
;
546 /* Tell the completer that we might want to follow symbolic links or
547 do other expansion on directory names. */
548 set_directory_hook ();
550 rl_filename_rewrite_hook
= bash_filename_rewrite_hook
;
552 rl_filename_stat_hook
= bash_filename_stat_hook
;
554 /* Tell the filename completer we want a chance to ignore some names. */
555 rl_ignore_some_completions_function
= filename_completion_ignore
;
557 /* Bind C-xC-e to invoke emacs and run result as commands. */
558 rl_bind_key_if_unbound_in_map (CTRL ('E'), emacs_edit_and_execute_command
, emacs_ctlx_keymap
);
559 #if defined (VI_MODE)
560 rl_bind_key_if_unbound_in_map ('v', vi_edit_and_execute_command
, vi_movement_keymap
);
562 rl_bind_key_if_unbound_in_map ('@', posix_edit_macros
, vi_movement_keymap
);
565 rl_bind_key_in_map ('\\', bash_vi_complete
, vi_movement_keymap
);
566 rl_bind_key_in_map ('*', bash_vi_complete
, vi_movement_keymap
);
567 rl_bind_key_in_map ('=', bash_vi_complete
, vi_movement_keymap
);
570 rl_completer_quote_characters
= "'\"";
572 /* This sets rl_completer_word_break_characters and rl_special_prefixes
573 to the appropriate values, depending on whether or not hostname
574 completion is enabled. */
575 enable_hostname_completion (perform_hostname_completion
);
577 /* characters that need to be quoted when appearing in filenames. */
578 rl_filename_quote_characters
= default_filename_quote_characters
;
579 set_filename_bstab (rl_filename_quote_characters
);
581 rl_filename_quoting_function
= bash_quote_filename
;
582 rl_filename_dequoting_function
= bash_dequote_filename
;
583 rl_char_is_quoted_p
= char_is_quoted
;
586 /* This is superfluous and makes it impossible to use tab completion in
587 vi mode even when explicitly binding it in ~/.inputrc. sv_strict_posix()
588 should already have called posix_readline_initialize() when
589 posixly_correct was set. */
591 posix_readline_initialize (1);
594 bash_readline_initialized
= 1;
598 bashline_reinitialize ()
600 bash_readline_initialized
= 0;
604 bashline_set_event_hook ()
606 rl_signal_event_hook
= bash_event_hook
;
610 bashline_reset_event_hook ()
612 rl_signal_event_hook
= 0;
615 /* On Sun systems at least, rl_attempted_completion_function can end up
616 getting set to NULL, and rl_completion_entry_function set to do command
617 word completion if Bash is interrupted while trying to complete a command
618 word. This just resets all the completion functions to the right thing.
619 It's called from throw_to_top_level(). */
624 rl_attempted_completion_function
= attempt_shell_completion
;
625 rl_completion_entry_function
= NULL
;
626 rl_ignore_some_completions_function
= filename_completion_ignore
;
627 rl_filename_quote_characters
= default_filename_quote_characters
;
628 set_filename_bstab (rl_filename_quote_characters
);
630 set_directory_hook ();
631 rl_filename_stat_hook
= bash_filename_stat_hook
;
633 bashline_reset_event_hook ();
636 /* Contains the line to push into readline. */
637 static char *push_to_readline
= (char *)NULL
;
639 /* Push the contents of push_to_readline into the
644 if (push_to_readline
)
646 rl_insert_text (push_to_readline
);
647 free (push_to_readline
);
648 push_to_readline
= (char *)NULL
;
649 rl_startup_hook
= old_rl_startup_hook
;
654 /* Call this to set the initial text for the next line to read
660 FREE (push_to_readline
);
662 push_to_readline
= savestring (line
);
663 old_rl_startup_hook
= rl_startup_hook
;
664 rl_startup_hook
= bash_push_line
;
670 display_shell_version (count
, c
)
674 show_shell_version (0);
675 putc ('\r', rl_outstream
);
676 fflush (rl_outstream
);
682 /* **************************************************************** */
686 /* **************************************************************** */
688 /* If the user requests hostname completion, then simply build a list
689 of hosts, and complete from that forever more, or at least until
690 HOSTFILE is unset. */
692 /* THIS SHOULD BE A STRINGLIST. */
693 /* The kept list of hostnames. */
694 static char **hostname_list
= (char **)NULL
;
696 /* The physical size of the above list. */
697 static int hostname_list_size
;
699 /* The number of hostnames in the above list. */
700 static int hostname_list_length
;
702 /* Whether or not HOSTNAME_LIST has been initialized. */
703 int hostname_list_initialized
= 0;
705 /* Initialize the hostname completion table. */
707 initialize_hostname_list ()
711 temp
= get_string_value ("HOSTFILE");
713 temp
= get_string_value ("hostname_completion_file");
715 temp
= DEFAULT_HOSTS_FILE
;
717 snarf_hosts_from_file (temp
);
720 hostname_list_initialized
++;
723 /* Add NAME to the list of hosts. */
728 if (hostname_list_length
+ 2 > hostname_list_size
)
730 hostname_list_size
= (hostname_list_size
+ 32) - (hostname_list_size
% 32);
731 hostname_list
= strvec_resize (hostname_list
, hostname_list_size
);
734 hostname_list
[hostname_list_length
++] = savestring (name
);
735 hostname_list
[hostname_list_length
] = (char *)NULL
;
738 #define cr_whitespace(c) ((c) == '\r' || (c) == '\n' || whitespace(c))
741 snarf_hosts_from_file (filename
)
745 char *temp
, buffer
[256], name
[256];
746 register int i
, start
;
748 file
= fopen (filename
, "r");
752 while (temp
= fgets (buffer
, 255, file
))
754 /* Skip to first character. */
755 for (i
= 0; buffer
[i
] && cr_whitespace (buffer
[i
]); i
++)
758 /* If comment or blank line, ignore. */
759 if (buffer
[i
] == '\0' || buffer
[i
] == '#')
762 /* If `preprocessor' directive, do the include. */
763 if (strncmp (buffer
+ i
, "$include ", 9) == 0)
767 /* Find start of filename. */
768 for (incfile
= buffer
+ i
+ 9; *incfile
&& whitespace (*incfile
); incfile
++)
771 /* Find end of filename. */
772 for (t
= incfile
; *t
&& cr_whitespace (*t
) == 0; t
++)
777 snarf_hosts_from_file (incfile
);
781 /* Skip internet address if present. */
782 if (DIGIT (buffer
[i
]))
783 for (; buffer
[i
] && cr_whitespace (buffer
[i
]) == 0; i
++);
785 /* Gobble up names. Each name is separated with whitespace. */
788 for (; cr_whitespace (buffer
[i
]); i
++)
790 if (buffer
[i
] == '\0' || buffer
[i
] == '#')
793 /* Isolate the current word. */
794 for (start
= i
; buffer
[i
] && cr_whitespace (buffer
[i
]) == 0; i
++)
798 strncpy (name
, buffer
+ start
, i
- start
);
799 name
[i
- start
] = '\0';
800 add_host_name (name
);
806 /* Return the hostname list. */
810 if (hostname_list_initialized
== 0)
811 initialize_hostname_list ();
812 return (hostname_list
);
816 clear_hostname_list ()
820 if (hostname_list_initialized
== 0)
822 for (i
= 0; i
< hostname_list_length
; i
++)
823 free (hostname_list
[i
]);
824 hostname_list_length
= hostname_list_initialized
= 0;
827 /* Return a NULL terminated list of hostnames which begin with TEXT.
828 Initialize the hostname list the first time if necessary.
829 The array is malloc ()'ed, but not the individual strings. */
831 hostnames_matching (text
)
834 register int i
, len
, nmatch
, rsize
;
837 if (hostname_list_initialized
== 0)
838 initialize_hostname_list ();
840 if (hostname_list_initialized
== 0)
841 return ((char **)NULL
);
843 /* Special case. If TEXT consists of nothing, then the whole list is
847 result
= strvec_create (1 + hostname_list_length
);
848 for (i
= 0; i
< hostname_list_length
; i
++)
849 result
[i
] = hostname_list
[i
];
850 result
[i
] = (char *)NULL
;
854 /* Scan until found, or failure. */
856 result
= (char **)NULL
;
857 for (i
= nmatch
= rsize
= 0; i
< hostname_list_length
; i
++)
859 if (STREQN (text
, hostname_list
[i
], len
) == 0)
862 /* OK, it matches. Add it to the list. */
863 if (nmatch
>= (rsize
- 1))
865 rsize
= (rsize
+ 16) - (rsize
% 16);
866 result
= strvec_resize (result
, rsize
);
869 result
[nmatch
++] = hostname_list
[i
];
872 result
[nmatch
] = (char *)NULL
;
876 /* The equivalent of the Korn shell C-o operate-and-get-next-history-line
878 static int saved_history_line_to_use
= -1;
879 static int last_saved_history_line
= -1;
881 #define HISTORY_FULL() (history_is_stifled () && history_length >= history_max_entries)
886 /* XXX - compensate for assumption that history was `shuffled' if it was
888 if (HISTORY_FULL () &&
889 hist_last_line_added
== 0 &&
890 saved_history_line_to_use
< history_length
- 1)
891 saved_history_line_to_use
++;
893 if (saved_history_line_to_use
>= 0)
895 rl_get_previous_history (history_length
- saved_history_line_to_use
, 0);
896 last_saved_history_line
= saved_history_line_to_use
;
898 saved_history_line_to_use
= -1;
899 rl_startup_hook
= old_rl_startup_hook
;
904 operate_and_get_next (count
, c
)
909 /* Accept the current line. */
912 /* Find the current line, and find the next line to use. */
913 where
= where_history ();
915 if (HISTORY_FULL () || (where
>= history_length
- 1))
916 saved_history_line_to_use
= where
;
918 saved_history_line_to_use
= where
+ 1;
920 old_rl_startup_hook
= rl_startup_hook
;
921 rl_startup_hook
= set_saved_history
;
926 /* This vi mode command causes VI_EDIT_COMMAND to be run on the current
927 command being entered (if no explicit argument is given), otherwise on
928 a command from the history file. */
930 #define VI_EDIT_COMMAND "fc -e \"${VISUAL:-${EDITOR:-vi}}\""
931 #define EMACS_EDIT_COMMAND "fc -e \"${VISUAL:-${EDITOR:-emacs}}\""
932 #define POSIX_VI_EDIT_COMMAND "fc -e vi"
935 edit_and_execute_command (count
, c
, editing_mode
, edit_command
)
936 int count
, c
, editing_mode
;
939 char *command
, *metaval
;
940 int r
, rrs
, metaflag
;
941 sh_parser_state_t ps
;
943 rrs
= rl_readline_state
;
944 saved_command_line_count
= current_command_line_count
;
946 /* Accept the current line. */
951 command
= (char *)xmalloc (strlen (edit_command
) + 8);
952 sprintf (command
, "%s %d", edit_command
, count
);
956 /* Take the command we were just editing, add it to the history file,
957 then call fc to operate on it. We have to add a dummy command to
958 the end of the history because fc ignores the last command (assumes
959 it's supposed to deal with the command before the `fc'). */
960 /* This breaks down when using command-oriented history and are not
961 finished with the command, so we should not ignore the last command */
963 current_command_line_count
++; /* for rl_newline above */
964 bash_add_history (rl_line_buffer
);
965 current_command_line_count
= 0; /* for dummy history entry */
966 bash_add_history ("");
967 history_lines_this_session
++;
969 command
= savestring (edit_command
);
972 metaval
= rl_variable_value ("input-meta");
973 metaflag
= RL_BOOLEAN_VARIABLE_VALUE (metaval
);
975 /* Now, POSIX.1-2001 and SUSv3 say that the commands executed from the
976 temporary file should be placed into the history. We don't do that
978 if (rl_deprep_term_function
)
979 (*rl_deprep_term_function
) ();
980 save_parser_state (&ps
);
981 r
= parse_and_execute (command
, (editing_mode
== VI_EDITING_MODE
) ? "v" : "C-xC-e", SEVAL_NOHIST
);
982 restore_parser_state (&ps
);
983 if (rl_prep_term_function
)
984 (*rl_prep_term_function
) (metaflag
);
986 current_command_line_count
= saved_command_line_count
;
988 /* Now erase the contents of the current line and undo the effects of the
989 rl_accept_line() above. We don't even want to make the text we just
990 executed available for undoing. */
991 rl_line_buffer
[0] = '\0'; /* XXX */
992 rl_point
= rl_end
= 0;
994 rl_readline_state
= rrs
;
996 rl_forced_update_display ();
1001 #if defined (VI_MODE)
1003 vi_edit_and_execute_command (count
, c
)
1006 if (posixly_correct
)
1007 return (edit_and_execute_command (count
, c
, VI_EDITING_MODE
, POSIX_VI_EDIT_COMMAND
));
1009 return (edit_and_execute_command (count
, c
, VI_EDITING_MODE
, VI_EDIT_COMMAND
));
1011 #endif /* VI_MODE */
1014 emacs_edit_and_execute_command (count
, c
)
1017 return (edit_and_execute_command (count
, c
, EMACS_EDITING_MODE
, EMACS_EDIT_COMMAND
));
1022 posix_edit_macros (count
, key
)
1026 char alias_name
[3], *alias_value
, *macro
;
1029 alias_name
[0] = '_';
1031 alias_name
[2] = '\0';
1033 alias_value
= get_alias_value (alias_name
);
1034 if (alias_value
&& *alias_value
)
1036 macro
= savestring (alias_value
);
1037 rl_push_macro_input (macro
);
1043 /* Bindable commands that move `shell-words': that is, sequences of
1044 non-unquoted-metacharacters. */
1046 #define WORDDELIM(c) (shellmeta(c) || shellblank(c))
1049 bash_forward_shellword (count
, key
)
1057 return (bash_backward_shellword (-count
, key
));
1059 /* The tricky part of this is deciding whether or not the first character
1060 we're on is an unquoted metacharacter. Not completely handled yet. */
1061 /* XXX - need to test this stuff with backslash-escaped shell
1062 metacharacters and unclosed single- and double-quoted strings. */
1075 /* Are we in a quoted string? If we are, move to the end of the quoted
1076 string and continue the outer loop. We only want quoted strings, not
1077 backslash-escaped characters, but char_is_quoted doesn't
1079 if (char_is_quoted (rl_line_buffer
, p
) && p
> 0 && rl_line_buffer
[p
-1] != '\\')
1082 ADVANCE_CHAR (rl_line_buffer
, slen
, p
);
1083 while (p
< rl_end
&& char_is_quoted (rl_line_buffer
, p
));
1088 /* Rest of code assumes we are not in a quoted string. */
1089 /* Move forward until we hit a non-metacharacter. */
1090 while (p
< rl_end
&& (c
= rl_line_buffer
[p
]) && WORDDELIM (c
))
1095 ADVANCE_CHAR (rl_line_buffer
, slen
, p
);
1096 continue; /* straight back to loop, don't increment p */
1098 if (p
< rl_end
&& rl_line_buffer
[p
])
1099 ADVANCE_CHAR (rl_line_buffer
, slen
, p
);
1102 p
= skip_to_delim (rl_line_buffer
, ++p
, "'", SD_NOJMP
);
1105 p
= skip_to_delim (rl_line_buffer
, ++p
, "\"", SD_NOJMP
);
1113 if (rl_line_buffer
[p
] == 0 || p
== rl_end
)
1120 /* Now move forward until we hit a non-quoted metacharacter or EOL */
1121 while (p
< rl_end
&& (c
= rl_line_buffer
[p
]) && WORDDELIM (c
) == 0)
1126 ADVANCE_CHAR (rl_line_buffer
, slen
, p
);
1127 continue; /* straight back to loop, don't increment p */
1129 if (p
< rl_end
&& rl_line_buffer
[p
])
1130 ADVANCE_CHAR (rl_line_buffer
, slen
, p
);
1133 p
= skip_to_delim (rl_line_buffer
, ++p
, "'", SD_NOJMP
);
1136 p
= skip_to_delim (rl_line_buffer
, ++p
, "\"", SD_NOJMP
);
1144 if (p
== rl_end
|| rl_line_buffer
[p
] == 0)
1158 bash_backward_shellword (count
, key
)
1166 return (bash_forward_shellword (-count
, key
));
1179 /* Move backward until we hit a non-metacharacter. */
1182 c
= rl_line_buffer
[p
];
1183 if (WORDDELIM (c
) && char_is_quoted (rl_line_buffer
, p
) == 0)
1184 BACKUP_CHAR (rl_line_buffer
, slen
, p
);
1194 /* Now move backward until we hit a metacharacter or BOL. */
1197 c
= rl_line_buffer
[p
];
1198 if (WORDDELIM (c
) && char_is_quoted (rl_line_buffer
, p
) == 0)
1200 BACKUP_CHAR (rl_line_buffer
, slen
, p
);
1211 bash_kill_shellword (count
, key
)
1217 return (bash_backward_kill_shellword (-count
, key
));
1220 bash_forward_shellword (count
, key
);
1223 rl_kill_text (p
, rl_point
);
1226 if (rl_editing_mode
== 1) /* 1 == emacs_mode */
1233 bash_backward_kill_shellword (count
, key
)
1239 return (bash_kill_shellword (-count
, key
));
1242 bash_backward_shellword (count
, key
);
1245 rl_kill_text (p
, rl_point
);
1247 if (rl_editing_mode
== 1) /* 1 == emacs_mode */
1254 /* **************************************************************** */
1256 /* How To Do Shell Completion */
1258 /* **************************************************************** */
1260 #define COMMAND_SEPARATORS ";|&{(`"
1262 #define COMMAND_SEPARATORS_PLUS_WS ";|&{(` \t"
1265 /* check for redirections and other character combinations that are not
1266 command separators */
1271 register int this_char
, prev_char
;
1273 /* Handle the two character tokens `>&', `<&', and `>|'.
1274 We are not in a command position after one of these. */
1275 this_char
= rl_line_buffer
[ti
];
1276 prev_char
= rl_line_buffer
[ti
- 1];
1278 if ((this_char
== '&' && (prev_char
== '<' || prev_char
== '>')) ||
1279 (this_char
== '|' && prev_char
== '>'))
1281 else if (this_char
== '{' && prev_char
== '$') /*}*/
1284 else if (this_char
== '(' && prev_char
== '$') /*)*/
1286 else if (this_char
== '(' && prev_char
== '<') /*)*/
1288 #if defined (EXTENDED_GLOB)
1289 else if (extended_glob
&& this_char
== '(' && prev_char
== '!') /*)*/
1293 else if (char_is_quoted (rl_line_buffer
, ti
))
1298 #if defined (PROGRAMMABLE_COMPLETION)
1300 * XXX - because of the <= start test, and setting os = s+1, this can
1301 * potentially return os > start. This is probably not what we want to
1302 * happen, but fix later after 2.05a-release.
1305 find_cmd_start (start
)
1311 /* Flags == SD_NOJMP only because we want to skip over command substitutions
1312 in assignment statements. Have to test whether this affects `standalone'
1313 command substitutions as individual words. */
1314 while (((s
= skip_to_delim (rl_line_buffer
, os
, COMMAND_SEPARATORS
, SD_NOJMP
/*|SD_NOSKIPCMD*/)) <= start
) &&
1326 e
= skip_to_delim (rl_line_buffer
, end
, COMMAND_SEPARATORS
, SD_NOJMP
);
1331 find_cmd_name (start
, sp
, ep
)
1338 for (s
= start
; whitespace (rl_line_buffer
[s
]); s
++)
1341 /* skip until a shell break character */
1342 e
= skip_to_delim (rl_line_buffer
, s
, "()<>;&| \t\n", SD_NOJMP
);
1344 name
= substring (rl_line_buffer
, s
, e
);
1355 prog_complete_return (text
, matchnum
)
1364 if (prog_complete_matches
== 0 || prog_complete_matches
[ind
] == 0)
1365 return (char *)NULL
;
1366 return (prog_complete_matches
[ind
++]);
1369 #endif /* PROGRAMMABLE_COMPLETION */
1371 /* Do some completion on TEXT. The indices of TEXT in RL_LINE_BUFFER are
1372 at START and END. Return an array of matches, or NULL if none. */
1374 attempt_shell_completion (text
, start
, end
)
1378 int in_command_position
, ti
, saveti
, qc
, dflags
;
1379 char **matches
, *command_separator_chars
;
1380 #if defined (PROGRAMMABLE_COMPLETION)
1381 int have_progcomps
, was_assignment
;
1384 command_separator_chars
= COMMAND_SEPARATORS
;
1385 matches
= (char **)NULL
;
1386 rl_ignore_some_completions_function
= filename_completion_ignore
;
1388 rl_filename_quote_characters
= default_filename_quote_characters
;
1389 set_filename_bstab (rl_filename_quote_characters
);
1390 set_directory_hook ();
1391 rl_filename_stat_hook
= bash_filename_stat_hook
;
1393 /* Determine if this could be a command word. It is if it appears at
1394 the start of the line (ignoring preceding whitespace), or if it
1395 appears after a character that separates commands. It cannot be a
1396 command word if we aren't at the top-level prompt. */
1400 while ((ti
> -1) && (whitespace (rl_line_buffer
[ti
])))
1404 /* If this is an open quote, maybe we're trying to complete a quoted
1406 if (ti
>= 0 && (rl_line_buffer
[ti
] == '"' || rl_line_buffer
[ti
] == '\''))
1408 qc
= rl_line_buffer
[ti
];
1410 while (ti
> -1 && (whitespace (rl_line_buffer
[ti
])))
1415 in_command_position
= 0;
1418 /* Only do command completion at the start of a line when we
1419 are prompting at the top level. */
1420 if (current_prompt_string
== ps1_prompt
)
1421 in_command_position
++;
1422 else if (parser_in_command_position ())
1423 in_command_position
++;
1425 else if (member (rl_line_buffer
[ti
], command_separator_chars
))
1427 in_command_position
++;
1429 if (check_redir (ti
) == 1)
1430 in_command_position
= 0;
1434 /* This still could be in command position. It is possible
1435 that all of the previous words on the line are variable
1439 /* Check that we haven't incorrectly flagged a closed command substitution
1440 as indicating we're in a command position. */
1441 if (in_command_position
&& ti
>= 0 && rl_line_buffer
[ti
] == '`' &&
1442 *text
!= '`' && unclosed_pair (rl_line_buffer
, end
, "`") == 0)
1443 in_command_position
= 0;
1445 /* Special handling for command substitution. If *TEXT is a backquote,
1446 it can be the start or end of an old-style command substitution, or
1447 unmatched. If it's unmatched, both calls to unclosed_pair will
1448 succeed. Don't bother if readline found a single quote and we are
1449 completing on the substring. */
1450 if (*text
== '`' && rl_completion_quote_character
!= '\'' &&
1451 (in_command_position
|| (unclosed_pair (rl_line_buffer
, start
, "`") &&
1452 unclosed_pair (rl_line_buffer
, end
, "`"))))
1453 matches
= rl_completion_matches (text
, command_subst_completion_function
);
1455 #if defined (PROGRAMMABLE_COMPLETION)
1456 /* Attempt programmable completion. */
1457 have_progcomps
= prog_completion_enabled
&& (progcomp_size () > 0);
1458 if (matches
== 0 && (in_command_position
== 0 || text
[0] == '\0') &&
1459 current_prompt_string
== ps1_prompt
)
1461 int s
, e
, s1
, e1
, os
, foundcs
;
1464 /* XXX - don't free the members */
1465 if (prog_complete_matches
)
1466 free (prog_complete_matches
);
1467 prog_complete_matches
= (char **)NULL
;
1472 s
= find_cmd_start (os
);
1473 e
= find_cmd_end (end
);
1476 /* Don't read past the end of rl_line_buffer */
1482 /* Or past point if point is within an assignment statement */
1483 else if (was_assignment
&& s
> rl_point
)
1488 /* Skip over assignment statements preceding a command name. If we
1489 don't find a command name at all, we can perform command name
1490 completion. If we find a partial command name, we should perform
1491 command name completion on it. */
1493 n
= find_cmd_name (s
, &s1
, &e1
);
1496 while (was_assignment
= assignment (n
, 0));
1497 s
= s1
; /* reset to index where name begins */
1499 /* s == index of where command name begins (reset above)
1500 e == end of current command, may be end of line
1501 s1 = index of where command name begins
1502 e1 == index of where command name ends
1503 start == index of where word to be completed begins
1504 end == index of where word to be completed ends
1505 if (s == start) we are doing command word completion for sure
1506 if (e1 == end) we are at the end of the command name and completing it */
1507 if (start
== 0 && end
== 0 && e
!= 0 && text
[0] == '\0') /* beginning of non-empty line */
1509 else if (start
== end
&& start
== s1
&& e
!= 0 && e1
> end
) /* beginning of command name, leading whitespace */
1511 else if (e
== 0 && e
== s
&& text
[0] == '\0' && have_progcomps
) /* beginning of empty line */
1512 prog_complete_matches
= programmable_completions ("_EmptycmD_", text
, s
, e
, &foundcs
);
1513 else if (start
== end
&& text
[0] == '\0' && s1
> start
&& whitespace (rl_line_buffer
[start
]))
1514 foundcs
= 0; /* whitespace before command name */
1515 else if (e
> s
&& was_assignment
== 0 && e1
== end
&& rl_line_buffer
[e
] == 0 && whitespace (rl_line_buffer
[e
-1]) == 0)
1517 /* not assignment statement, but still want to perform command
1518 completion if we are composing command word. */
1520 in_command_position
= s
== start
&& STREQ (n
, text
); /* XXX */
1522 else if (e
> s
&& was_assignment
== 0 && have_progcomps
)
1524 prog_complete_matches
= programmable_completions (n
, text
, s
, e
, &foundcs
);
1525 /* command completion if programmable completion fails */
1526 in_command_position
= s
== start
&& STREQ (n
, text
); /* XXX */
1528 else if (s
>= e
&& n
[0] == '\0' && text
[0] == '\0' && start
> 0)
1530 foundcs
= 0; /* empty command name following assignments */
1531 in_command_position
= was_assignment
;
1533 else if (s
== start
&& e
== end
&& STREQ (n
, text
) && start
> 0)
1535 foundcs
= 0; /* partial command name following assignments */
1536 in_command_position
= 1;
1541 /* XXX - if we found a COMPSPEC for the command, just return whatever
1542 the programmable completion code returns, and disable the default
1543 filename completion that readline will do unless the COPT_DEFAULT
1544 option has been set with the `-o default' option to complete or
1548 pcomp_set_readline_variables (foundcs
, 1);
1549 /* Turn what the programmable completion code returns into what
1550 readline wants. I should have made compute_lcd_of_matches
1552 matches
= rl_completion_matches (text
, prog_complete_return
);
1553 if ((foundcs
& COPT_DEFAULT
) == 0)
1554 rl_attempted_completion_over
= 1; /* no default */
1555 if (matches
|| ((foundcs
& COPT_BASHDEFAULT
) == 0))
1564 if (in_command_position
)
1565 dflags
|= DEFCOMP_CMDPOS
;
1566 matches
= bash_default_completion (text
, start
, end
, qc
, dflags
);
1573 bash_default_completion (text
, start
, end
, qc
, compflags
)
1575 int start
, end
, qc
, compflags
;
1579 matches
= (char **)NULL
;
1581 /* New posix-style command substitution or variable name? */
1582 if (!matches
&& *text
== '$')
1584 if (qc
!= '\'' && text
[1] == '(') /* ) */
1585 matches
= rl_completion_matches (text
, command_subst_completion_function
);
1588 matches
= rl_completion_matches (text
, variable_completion_function
);
1589 if (matches
&& matches
[0] && matches
[1] == 0)
1591 t
= savestring (matches
[0]);
1592 bash_filename_stat_hook (&t
);
1593 /* doesn't use test_for_directory because that performs tilde
1596 rl_completion_append_character
= '/';
1602 /* If the word starts in `~', and there is no slash in the word, then
1603 try completing this word as a username. */
1604 if (matches
== 0 && *text
== '~' && mbschr (text
, '/') == 0)
1605 matches
= rl_completion_matches (text
, rl_username_completion_function
);
1607 /* Another one. Why not? If the word starts in '@', then look through
1608 the world of known hostnames for completion first. */
1609 if (matches
== 0 && perform_hostname_completion
&& *text
== '@')
1610 matches
= rl_completion_matches (text
, hostname_completion_function
);
1612 /* And last, (but not least) if this word is in a command position, then
1613 complete over possible command names, including aliases, functions,
1614 and command names. */
1615 if (matches
== 0 && (compflags
& DEFCOMP_CMDPOS
))
1617 /* If END == START and text[0] == 0, we are trying to complete an empty
1619 if (no_empty_command_completion
&& end
== start
&& text
[0] == '\0')
1621 matches
= (char **)NULL
;
1622 rl_ignore_some_completions_function
= bash_ignore_everything
;
1626 #define CMD_IS_DIR(x) (absolute_pathname(x) == 0 && absolute_program(x) == 0 && *(x) != '~' && test_for_directory (x))
1629 matches
= rl_completion_matches (text
, command_word_completion_function
);
1631 /* If we are attempting command completion and nothing matches, we
1632 do not want readline to perform filename completion for us. We
1633 still want to be able to complete partial pathnames, so set the
1634 completion ignore function to something which will remove
1635 filenames and leave directories in the match list. */
1636 if (matches
== (char **)NULL
)
1637 rl_ignore_some_completions_function
= bash_ignore_filenames
;
1638 else if (matches
[1] == 0 && CMD_IS_DIR(matches
[0]) && dot_in_path
== 0)
1639 /* If we found a single match, without looking in the current
1640 directory (because it's not in $PATH), but the found name is
1641 also a command in the current directory, suppress appending any
1642 terminating character, since it's ambiguous. */
1644 rl_completion_suppress_append
= 1;
1645 rl_filename_completion_desired
= 0;
1647 else if (matches
[0] && matches
[1] && STREQ (matches
[0], matches
[1]) && CMD_IS_DIR (matches
[0]))
1648 /* There are multiple instances of the same match (duplicate
1649 completions haven't yet been removed). In this case, all of
1650 the matches will be the same, and the duplicate removal code
1651 will distill them all down to one. We turn on
1652 rl_completion_suppress_append for the same reason as above.
1653 Remember: we only care if there's eventually a single unique
1654 completion. If there are multiple completions this won't
1655 make a difference and the problem won't occur. */
1657 rl_completion_suppress_append
= 1;
1658 rl_filename_completion_desired
= 0;
1663 /* This could be a globbing pattern, so try to expand it using pathname
1665 if (!matches
&& glob_pattern_p (text
))
1667 matches
= rl_completion_matches (text
, glob_complete_word
);
1668 /* A glob expression that matches more than one filename is problematic.
1669 If we match more than one filename, punt. */
1670 if (matches
&& matches
[1] && rl_completion_type
== TAB
)
1672 strvec_dispose (matches
);
1673 matches
= (char **)0;
1675 else if (matches
&& matches
[1] && rl_completion_type
== '!')
1677 rl_completion_suppress_append
= 1;
1678 rl_filename_completion_desired
= 0;
1686 bash_command_name_stat_hook (name
)
1689 char *cname
, *result
;
1691 /* If it's not something we're going to look up in $PATH, just call the
1692 normal filename stat hook. */
1693 if (absolute_program (*name
))
1694 return (bash_filename_stat_hook (name
));
1697 /* XXX - we could do something here with converting aliases, builtins,
1698 and functions into something that came out as executable, but we don't. */
1699 result
= search_for_command (cname
, 0);
1709 executable_completion (filename
, searching_path
)
1710 const char *filename
;
1716 f
= savestring (filename
);
1717 bash_directory_completion_hook (&f
);
1719 r
= searching_path
? executable_file (f
) : executable_or_directory (f
);
1724 /* This is the function to call when the word to complete is in a position
1725 where a command word can be found. It grovels $PATH, looking for commands
1726 that match. It also scans aliases, function names, and the shell_builtin
1729 command_word_completion_function (hint_text
, state
)
1730 const char *hint_text
;
1733 static char *hint
= (char *)NULL
;
1734 static char *path
= (char *)NULL
;
1735 static char *val
= (char *)NULL
;
1736 static char *filename_hint
= (char *)NULL
;
1737 static char *fnhint
= (char *)NULL
;
1738 static char *dequoted_hint
= (char *)NULL
;
1739 static char *directory_part
= (char *)NULL
;
1740 static char **glob_matches
= (char **)NULL
;
1741 static int path_index
, hint_len
, dequoted_len
, istate
, igncase
;
1742 static int mapping_over
, local_index
, searching_path
, hint_is_dir
;
1743 static int old_glob_ignore_case
, globpat
;
1744 static SHELL_VAR
**varlist
= (SHELL_VAR
**)NULL
;
1746 static alias_t
**alias_list
= (alias_t
**)NULL
;
1750 /* We have to map over the possibilities for command words. If we have
1751 no state, then make one just for that purpose. */
1754 rl_filename_stat_hook
= bash_command_name_stat_hook
;
1756 if (dequoted_hint
&& dequoted_hint
!= hint
)
1757 free (dequoted_hint
);
1761 mapping_over
= searching_path
= 0;
1762 hint_is_dir
= CMD_IS_DIR (hint_text
);
1765 temp
= rl_variable_value ("completion-ignore-case");
1766 igncase
= RL_BOOLEAN_VARIABLE_VALUE (temp
);
1770 free (glob_matches
);
1771 glob_matches
= (char **)NULL
;
1774 globpat
= glob_pattern_p (hint_text
);
1776 /* If this is an absolute program name, do not check it against
1777 aliases, reserved words, functions or builtins. We must check
1778 whether or not it is unique, and, if so, whether that filename
1780 if (globpat
|| absolute_program (hint_text
))
1782 /* Perform tilde expansion on what's passed, so we don't end up
1783 passing filenames with tildes directly to stat(). */
1784 if (*hint_text
== '~')
1786 hint
= bash_tilde_expand (hint_text
, 0);
1787 directory_part
= savestring (hint_text
);
1788 temp
= strchr (directory_part
, '/');
1793 free (directory_part
);
1794 directory_part
= (char *)NULL
;
1798 hint
= savestring (hint_text
);
1800 dequoted_hint
= hint
;
1801 /* If readline's completer found a quote character somewhere, but
1802 didn't set the quote character, there must have been a quote
1803 character embedded in the filename. It can't be at the start of
1804 the filename, so we need to dequote the filename before we look
1805 in the file system for it. */
1806 if (rl_completion_found_quote
&& rl_completion_quote_character
== 0)
1808 dequoted_hint
= bash_dequote_filename (hint
, 0);
1810 hint
= dequoted_hint
;
1812 dequoted_len
= hint_len
= strlen (hint
);
1815 free (filename_hint
);
1817 fnhint
= filename_hint
= savestring (hint
);
1828 if (dircomplete_expand
&& path_dot_or_dotdot (filename_hint
))
1830 dircomplete_expand
= 0;
1831 set_directory_hook ();
1832 dircomplete_expand
= 1;
1839 dequoted_hint
= hint
= savestring (hint_text
);
1840 dequoted_len
= hint_len
= strlen (hint
);
1842 if (rl_completion_found_quote
&& rl_completion_quote_character
== 0)
1844 dequoted_hint
= bash_dequote_filename (hint
, 0);
1845 dequoted_len
= strlen (dequoted_hint
);
1848 path
= get_string_value ("PATH");
1849 path_index
= dot_in_path
= 0;
1851 /* Initialize the variables for each type of command word. */
1857 varlist
= all_visible_functions ();
1863 alias_list
= all_aliases ();
1867 /* mapping_over says what we are currently hacking. Note that every case
1868 in this list must fall through when there are no more possibilities. */
1870 switch (mapping_over
)
1872 case 0: /* Aliases come first. */
1874 while (alias_list
&& alias_list
[local_index
])
1876 register char *alias
;
1878 alias
= alias_list
[local_index
++]->name
;
1880 if (STREQN (alias
, hint
, hint_len
))
1881 return (savestring (alias
));
1887 case 1: /* Then shell reserved words. */
1889 while (word_token_alist
[local_index
].word
)
1891 register char *reserved_word
;
1893 reserved_word
= word_token_alist
[local_index
++].word
;
1895 if (STREQN (reserved_word
, hint
, hint_len
))
1896 return (savestring (reserved_word
));
1902 case 2: /* Then function names. */
1903 while (varlist
&& varlist
[local_index
])
1905 register char *varname
;
1907 varname
= varlist
[local_index
++]->name
;
1909 if (STREQN (varname
, hint
, hint_len
))
1910 return (savestring (varname
));
1915 case 3: /* Then shell builtins. */
1916 for (; local_index
< num_shell_builtins
; local_index
++)
1918 /* Ignore it if it doesn't have a function pointer or if it
1919 is not currently enabled. */
1920 if (!shell_builtins
[local_index
].function
||
1921 (shell_builtins
[local_index
].flags
& BUILTIN_ENABLED
) == 0)
1924 if (STREQN (shell_builtins
[local_index
].name
, hint
, hint_len
))
1926 int i
= local_index
++;
1928 return (savestring (shell_builtins
[i
].name
));
1936 /* Limited support for completing command words with globbing chars. Only
1937 a single match (multiple matches that end up reducing the number of
1938 characters in the common prefix are bad) will ever be returned on
1939 regular completion. */
1944 glob_ignore_case
= igncase
;
1945 glob_matches
= shell_glob_filename (hint
);
1946 glob_ignore_case
= old_glob_ignore_case
;
1948 if (GLOB_FAILED (glob_matches
) || glob_matches
== 0)
1950 glob_matches
= (char **)NULL
;
1951 return ((char *)NULL
);
1956 if (glob_matches
[1] && rl_completion_type
== TAB
) /* multiple matches are bad */
1957 return ((char *)NULL
);
1960 while (val
= glob_matches
[local_index
++])
1962 if (executable_or_directory (val
))
1964 if (*hint_text
== '~' && directory_part
)
1966 temp
= maybe_restore_tilde (val
, directory_part
);
1975 glob_ignore_case
= old_glob_ignore_case
;
1976 return ((char *)NULL
);
1979 /* If the text passed is a directory in the current directory, return it
1980 as a possible match. Executables in directories in the current
1981 directory can be specified using relative pathnames and successfully
1982 executed even when `.' is not in $PATH. */
1985 hint_is_dir
= 0; /* only return the hint text once */
1986 return (savestring (hint_text
));
1989 /* Repeatedly call filename_completion_function while we have
1990 members of PATH left. Question: should we stat each file?
1991 Answer: we call executable_file () on each file. */
1994 istate
= (val
!= (char *)NULL
);
2000 /* Get the next directory from the path. If there is none, then we
2002 if (path
== 0 || path
[path_index
] == 0 ||
2003 (current_path
= extract_colon_unit (path
, &path_index
)) == 0)
2004 return ((char *)NULL
);
2007 if (*current_path
== 0)
2009 free (current_path
);
2010 current_path
= savestring (".");
2013 if (*current_path
== '~')
2017 t
= bash_tilde_expand (current_path
, 0);
2018 free (current_path
);
2022 if (current_path
[0] == '.' && current_path
[1] == '\0')
2025 if (fnhint
&& fnhint
!= filename_hint
)
2028 free (filename_hint
);
2030 filename_hint
= sh_makepath (current_path
, hint
, 0);
2031 /* Need a quoted version (though it doesn't matter much in most
2032 cases) because rl_filename_completion_function dequotes the
2033 filename it gets, assuming that it's been quoted as part of
2034 the input line buffer. */
2035 if (strpbrk (filename_hint
, "\"'\\"))
2036 fnhint
= sh_backslash_quote (filename_hint
, filename_bstab
, 0);
2038 fnhint
= filename_hint
;
2039 free (current_path
); /* XXX */
2043 val
= rl_filename_completion_function (fnhint
, istate
);
2044 if (mapping_over
== 4 && dircomplete_expand
)
2045 set_directory_hook ();
2051 /* If the hint text is an absolute program, then don't bother
2052 searching through PATH. */
2053 if (absolute_program (hint
))
2054 return ((char *)NULL
);
2060 int match
, freetemp
;
2062 if (absolute_program (hint
))
2065 match
= strncmp (val
, hint
, hint_len
) == 0;
2067 match
= strncasecmp (val
, hint
, hint_len
) == 0;
2069 /* If we performed tilde expansion, restore the original
2071 if (*hint_text
== '~')
2072 temp
= maybe_restore_tilde (val
, directory_part
);
2074 temp
= savestring (val
);
2079 temp
= strrchr (val
, '/');
2085 freetemp
= match
= strncmp (temp
, hint
, hint_len
) == 0;
2087 freetemp
= match
= strncasecmp (temp
, hint
, hint_len
) == 0;
2089 temp
= savestring (temp
);
2092 freetemp
= match
= 0;
2095 /* If we have found a match, and it is an executable file, return it.
2096 We don't return directory names when searching $PATH, since the
2097 bash execution code won't find executables in directories which
2098 appear in directories in $PATH when they're specified using
2099 relative pathnames. */
2101 /* If we're not searching $PATH and we have a relative pathname, we
2102 need to re-canonicalize it before testing whether or not it's an
2103 executable or a directory so the shell treats .. relative to $PWD
2104 according to the physical/logical option. The shell already
2105 canonicalizes the directory name in order to tell readline where
2106 to look, so not doing it here will be inconsistent. */
2107 /* XXX -- currently not used -- will introduce more inconsistency,
2108 since shell does not canonicalize ../foo before passing it to
2110 if (match
&& searching_path
== 0 && *val
== '.')
2114 t
= get_working_directory ("command-word-completion");
2115 t1
= make_absolute (val
, t
);
2117 cval
= sh_canonpath (t1
, PATH_CHECKDOTDOT
|PATH_CHECKEXISTS
);
2123 if (match
&& executable_completion ((searching_path
? val
: cval
), searching_path
))
2128 val
= ""; /* So it won't be NULL. */
2143 /* Completion inside an unterminated command substitution. */
2145 command_subst_completion_function (text
, state
)
2149 static char **matches
= (char **)NULL
;
2150 static const char *orig_start
;
2151 static char *filename_text
= (char *)NULL
;
2152 static int cmd_index
, start_len
;
2158 free (filename_text
);
2162 else if (*text
== '$' && text
[1] == '(') /* ) */
2164 /* If the text was quoted, suppress any quote character that the
2165 readline completion code would insert. */
2166 rl_completion_suppress_quote
= 1;
2167 start_len
= text
- orig_start
;
2168 filename_text
= savestring (text
);
2173 * At this point we can entertain the idea of re-parsing
2174 * `filename_text' into a (possibly incomplete) command name and
2175 * arguments, and doing completion based on that. This is
2176 * currently very rudimentary, but it is a small improvement.
2178 for (value
= filename_text
+ strlen (filename_text
) - 1; value
> filename_text
; value
--)
2179 if (whitespace (*value
) || member (*value
, COMMAND_SEPARATORS
))
2181 if (value
<= filename_text
)
2182 matches
= rl_completion_matches (filename_text
, command_word_completion_function
);
2186 start_len
+= value
- filename_text
;
2187 if (whitespace (value
[-1]))
2188 matches
= rl_completion_matches (value
, rl_filename_completion_function
);
2190 matches
= rl_completion_matches (value
, command_word_completion_function
);
2193 /* If there is more than one match, rl_completion_matches has already
2194 put the lcd in matches[0]. Skip over it. */
2195 cmd_index
= matches
&& matches
[0] && matches
[1];
2197 /* If there's a single match and it's a directory, set the append char
2198 to the expected `/'. Otherwise, don't append anything. */
2199 if (matches
&& matches
[0] && matches
[1] == 0 && test_for_directory (matches
[0]))
2200 rl_completion_append_character
= '/';
2202 rl_completion_suppress_append
= 1;
2205 if (matches
== 0 || matches
[cmd_index
] == 0)
2207 rl_filename_quoting_desired
= 0; /* disable quoting */
2208 return ((char *)NULL
);
2212 value
= (char *)xmalloc (1 + start_len
+ strlen (matches
[cmd_index
]));
2215 value
[0] = *orig_start
;
2217 strncpy (value
, orig_start
, start_len
);
2219 strcpy (value
+ start_len
, matches
[cmd_index
]);
2226 /* Okay, now we write the entry_function for variable completion. */
2228 variable_completion_function (text
, state
)
2232 static char **varlist
= (char **)NULL
;
2233 static int varlist_index
;
2234 static char *varname
= (char *)NULL
;
2236 static int first_char
, first_char_loc
;
2244 first_char
= text
[0];
2246 if (first_char
== '$')
2249 if (text
[first_char_loc
] == '{')
2252 varname
= savestring (text
+ first_char_loc
);
2254 namelen
= strlen (varname
);
2256 strvec_dispose (varlist
);
2258 varlist
= all_variables_matching_prefix (varname
);
2262 if (!varlist
|| !varlist
[varlist_index
])
2264 return ((char *)NULL
);
2270 value
= (char *)xmalloc (4 + strlen (varlist
[varlist_index
]));
2274 value
[0] = first_char
;
2275 if (first_char_loc
== 2)
2279 strcpy (value
+ first_char_loc
, varlist
[varlist_index
]);
2280 if (first_char_loc
== 2)
2281 strcat (value
, "}");
2288 /* How about a completion function for hostnames? */
2290 hostname_completion_function (text
, state
)
2294 static char **list
= (char **)NULL
;
2295 static int list_index
= 0;
2296 static int first_char
, first_char_loc
;
2298 /* If we don't have any state, make some. */
2303 list
= (char **)NULL
;
2308 if (first_char
== '@')
2311 list
= hostnames_matching ((char *)text
+first_char_loc
);
2315 if (list
&& list
[list_index
])
2319 t
= (char *)xmalloc (2 + strlen (list
[list_index
]));
2321 strcpy (t
+ first_char_loc
, list
[list_index
]);
2326 return ((char *)NULL
);
2330 * A completion function for service names from /etc/services (or wherever).
2333 bash_servicename_completion_function (text
, state
)
2337 #if defined (__WIN32__) || defined (__OPENNT) || !defined (HAVE_GETSERVENT)
2338 return ((char *)NULL
);
2340 static char *sname
= (char *)NULL
;
2341 static struct servent
*srvent
;
2342 static int snamelen
, firstc
;
2344 char **alist
, *aentry
;
2352 sname
= savestring (text
);
2353 snamelen
= strlen (sname
);
2357 while (srvent
= getservent ())
2360 if (snamelen
== 0 || (STREQN (sname
, srvent
->s_name
, snamelen
)))
2362 /* Not primary, check aliases */
2363 for (alist
= srvent
->s_aliases
; *alist
; alist
++)
2366 if (STREQN (sname
, aentry
, snamelen
))
2380 return ((char *)NULL
);
2383 value
= afound
? savestring (aentry
) : savestring (srvent
->s_name
);
2389 * A completion function for group names from /etc/group (or wherever).
2392 bash_groupname_completion_function (text
, state
)
2396 #if defined (__WIN32__) || defined (__OPENNT) || !defined (HAVE_GRP_H)
2397 return ((char *)NULL
);
2399 static char *gname
= (char *)NULL
;
2400 static struct group
*grent
;
2401 static int gnamelen
;
2407 gname
= savestring (text
);
2408 gnamelen
= strlen (gname
);
2413 while (grent
= getgrent ())
2415 if (gnamelen
== 0 || (STREQN (gname
, grent
->gr_name
, gnamelen
)))
2422 return ((char *)NULL
);
2425 value
= savestring (grent
->gr_name
);
2430 /* Functions to perform history and alias expansions on the current line. */
2432 #if defined (BANG_HISTORY)
2433 /* Perform history expansion on the current line. If no history expansion
2434 is done, pre_process_line() returns what it was passed, so we need to
2435 allocate a new line here. */
2437 history_expand_line_internal (line
)
2443 old_verify
= hist_verify
;
2445 new_line
= pre_process_line (line
, 0, 0);
2446 hist_verify
= old_verify
;
2448 return (new_line
== line
) ? savestring (line
) : new_line
;
2452 /* There was an error in expansion. Let the preprocessor print
2455 cleanup_expansion_error ()
2458 #if defined (BANG_HISTORY)
2461 old_verify
= hist_verify
;
2465 fprintf (rl_outstream
, "\r\n");
2466 to_free
= pre_process_line (rl_line_buffer
, 1, 0);
2467 #if defined (BANG_HISTORY)
2468 hist_verify
= old_verify
;
2470 if (to_free
!= rl_line_buffer
)
2472 putc ('\r', rl_outstream
);
2473 rl_forced_update_display ();
2476 /* If NEW_LINE differs from what is in the readline line buffer, add an
2477 undo record to get from the readline line buffer contents to the new
2478 line and make NEW_LINE the current readline line. */
2480 maybe_make_readline_line (new_line
)
2483 if (strcmp (new_line
, rl_line_buffer
) != 0)
2487 rl_add_undo (UNDO_BEGIN
, 0, 0, 0);
2488 rl_delete_text (0, rl_point
);
2489 rl_point
= rl_end
= rl_mark
= 0;
2490 rl_insert_text (new_line
);
2491 rl_add_undo (UNDO_END
, 0, 0, 0);
2495 /* Make NEW_LINE be the current readline line. This frees NEW_LINE. */
2497 set_up_new_line (new_line
)
2500 int old_point
, at_end
;
2502 old_point
= rl_point
;
2503 at_end
= rl_point
== rl_end
;
2505 /* If the line was history and alias expanded, then make that
2506 be one thing to undo. */
2507 maybe_make_readline_line (new_line
);
2510 /* Place rl_point where we think it should go. */
2513 else if (old_point
< rl_end
)
2515 rl_point
= old_point
;
2516 if (!whitespace (rl_line_buffer
[rl_point
]))
2517 rl_forward_word (1, 0);
2522 /* Expand aliases in the current readline line. */
2524 alias_expand_line (count
, ignore
)
2529 new_line
= alias_expand (rl_line_buffer
);
2533 set_up_new_line (new_line
);
2538 cleanup_expansion_error ();
2544 #if defined (BANG_HISTORY)
2545 /* History expand the line. */
2547 history_expand_line (count
, ignore
)
2552 new_line
= history_expand_line_internal (rl_line_buffer
);
2556 set_up_new_line (new_line
);
2561 cleanup_expansion_error ();
2566 /* Expand history substitutions in the current line and then insert a
2567 space (hopefully close to where we were before). */
2569 tcsh_magic_space (count
, ignore
)
2572 int dist_from_end
, old_point
;
2574 old_point
= rl_point
;
2575 dist_from_end
= rl_end
- rl_point
;
2576 if (history_expand_line (count
, ignore
) == 0)
2578 /* Try a simple heuristic from Stephen Gildea <gildea@intouchsys.com>.
2579 This works if all expansions were before rl_point or if no expansions
2581 rl_point
= (old_point
== 0) ? old_point
: rl_end
- dist_from_end
;
2588 #endif /* BANG_HISTORY */
2590 /* History and alias expand the line. */
2592 history_and_alias_expand_line (count
, ignore
)
2598 #if defined (BANG_HISTORY)
2599 new_line
= history_expand_line_internal (rl_line_buffer
);
2607 alias_line
= alias_expand (new_line
);
2609 new_line
= alias_line
;
2615 set_up_new_line (new_line
);
2620 cleanup_expansion_error ();
2625 /* History and alias expand the line, then perform the shell word
2626 expansions by calling expand_string. This can't use set_up_new_line()
2627 because we want the variable expansions as a separate undo'able
2628 set of operations. */
2630 shell_expand_line (count
, ignore
)
2634 WORD_LIST
*expanded_string
;
2637 #if defined (BANG_HISTORY)
2638 new_line
= history_expand_line_internal (rl_line_buffer
);
2646 alias_line
= alias_expand (new_line
);
2648 new_line
= alias_line
;
2654 int old_point
= rl_point
;
2655 int at_end
= rl_point
== rl_end
;
2657 /* If the line was history and alias expanded, then make that
2658 be one thing to undo. */
2659 maybe_make_readline_line (new_line
);
2662 /* If there is variable expansion to perform, do that as a separate
2663 operation to be undone. */
2664 new_line
= savestring (rl_line_buffer
);
2665 expanded_string
= expand_string (new_line
, 0);
2667 if (expanded_string
== 0)
2669 new_line
= (char *)xmalloc (1);
2674 new_line
= string_list (expanded_string
);
2675 dispose_words (expanded_string
);
2678 maybe_make_readline_line (new_line
);
2681 /* Place rl_point where we think it should go. */
2684 else if (old_point
< rl_end
)
2686 rl_point
= old_point
;
2687 if (!whitespace (rl_line_buffer
[rl_point
]))
2688 rl_forward_word (1, 0);
2694 cleanup_expansion_error ();
2699 /* If FIGNORE is set, then don't match files with the given suffixes when
2700 completing filenames. If only one of the possibilities has an acceptable
2701 suffix, delete the others, else just return and let the completer
2702 signal an error. It is called by the completer when real
2703 completions are done on filenames by the completer's internal
2704 function, not for completion lists (M-?) and not on "other"
2705 completion types, such as hostnames or commands. */
2707 static struct ignorevar fignore
=
2713 (sh_iv_item_func_t
*) 0,
2717 _ignore_completion_names (names
, name_func
)
2719 sh_ignore_func_t
*name_func
;
2726 /* If there is only one completion, see if it is acceptable. If it is
2727 not, free it up. In any case, short-circuit and return. This is a
2728 special case because names[0] is not the prefix of the list of names
2729 if there is only one completion; it is the completion itself. */
2730 if (names
[1] == (char *)0)
2733 if ((*name_func
) (names
[0]) == 0)
2736 names
[0] = (char *)NULL
;
2742 /* Allocate space for array to hold list of pointers to matching
2743 filenames. The pointers are copied back to NAMES when done. */
2744 for (nidx
= 1; names
[nidx
]; nidx
++)
2746 newnames
= strvec_create (nidx
+ 1);
2748 if (force_fignore
== 0)
2750 oldnames
= strvec_create (nidx
- 1);
2754 newnames
[0] = names
[0];
2755 for (idx
= nidx
= 1; names
[idx
]; idx
++)
2757 if ((*name_func
) (names
[idx
]))
2758 newnames
[nidx
++] = names
[idx
];
2759 else if (force_fignore
== 0)
2760 oldnames
[oidx
++] = names
[idx
];
2765 newnames
[nidx
] = (char *)NULL
;
2767 /* If none are acceptable then let the completer handle it. */
2773 names
[0] = (char *)NULL
;
2782 if (force_fignore
== 0)
2785 free (oldnames
[--oidx
]);
2789 /* If only one is acceptable, copy it to names[0] and return. */
2793 names
[0] = newnames
[1];
2794 names
[1] = (char *)NULL
;
2799 /* Copy the acceptable names back to NAMES, set the new array end,
2801 for (nidx
= 1; newnames
[nidx
]; nidx
++)
2802 names
[nidx
] = newnames
[nidx
];
2803 names
[nidx
] = (char *)NULL
;
2808 name_is_acceptable (name
)
2814 for (nlen
= strlen (name
), p
= fignore
.ignores
; p
->val
; p
++)
2816 if (nlen
> p
->len
&& p
->len
> 0 && STREQ (p
->val
, &name
[nlen
- p
->len
]))
2825 ignore_dot_names (name
)
2828 return (name
[0] != '.');
2833 filename_completion_ignore (names
)
2837 if (glob_dot_filenames
== 0)
2838 _ignore_completion_names (names
, ignore_dot_names
);
2841 setup_ignore_patterns (&fignore
);
2843 if (fignore
.num_ignores
== 0)
2846 _ignore_completion_names (names
, name_is_acceptable
);
2851 /* Return 1 if NAME is a directory. NAME undergoes tilde expansion. */
2853 test_for_directory (name
)
2859 fn
= bash_tilde_expand (name
, 0);
2860 r
= file_isdir (fn
);
2866 /* Remove files from NAMES, leaving directories. */
2868 bash_ignore_filenames (names
)
2871 _ignore_completion_names (names
, test_for_directory
);
2883 bash_ignore_everything (names
)
2886 _ignore_completion_names (names
, return_zero
);
2890 /* Replace a tilde-prefix in VAL with a `~', assuming the user typed it. VAL
2891 is an expanded filename. DIRECTORY_PART is the tilde-prefix portion
2892 of the un-tilde-expanded version of VAL (what the user typed). */
2894 restore_tilde (val
, directory_part
)
2895 char *val
, *directory_part
;
2898 char *dh2
, *expdir
, *ret
;
2902 /* We need to duplicate the expansions readline performs on the directory
2903 portion before passing it to our completion function. */
2904 dh2
= directory_part
? bash_dequote_filename (directory_part
, 0) : 0;
2905 bash_directory_expansion (&dh2
);
2908 expdir
= bash_tilde_expand (directory_part
, 0);
2909 xl
= strlen (expdir
);
2913 dh2 = unexpanded but dequoted tilde-prefix
2914 dl2 = length of tilde-prefix
2915 expdir = tilde-expanded tilde-prefix
2916 xl = length of expanded tilde-prefix
2917 l = length of remainder after tilde-prefix
2921 ret
= (char *)xmalloc (dl2
+ 2 + l
);
2923 strcpy (ret
+ dl2
, val
+ xl
);
2930 maybe_restore_tilde (val
, directory_part
)
2931 char *val
, *directory_part
;
2933 rl_icppfunc_t
*save
;
2936 save
= (dircomplete_expand
== 0) ? save_directory_hook () : (rl_icppfunc_t
*)0;
2937 ret
= restore_tilde (val
, directory_part
);
2939 restore_directory_hook (save
);
2943 /* Simulate the expansions that will be performed by
2944 rl_filename_completion_function. This must be called with the address of
2945 a pointer to malloc'd memory. */
2947 bash_directory_expansion (dirname
)
2952 d
= savestring (*dirname
);
2954 if ((rl_directory_rewrite_hook
) && (*rl_directory_rewrite_hook
) (&d
))
2959 else if (rl_directory_completion_hook
&& (*rl_directory_completion_hook
) (&d
))
2964 else if (rl_completion_found_quote
)
2966 nd
= bash_dequote_filename (d
, rl_completion_quote_character
);
2973 /* If necessary, rewrite directory entry */
2975 bash_filename_rewrite_hook (fname
, fnlen
)
2981 conv
= fnx_fromfs (fname
, fnlen
);
2983 conv
= savestring (conv
);
2987 /* Functions to save and restore the appropriate directory hook */
2988 /* This is not static so the shopt code can call it */
2990 set_directory_hook ()
2992 if (dircomplete_expand
)
2994 rl_directory_completion_hook
= bash_directory_completion_hook
;
2995 rl_directory_rewrite_hook
= (rl_icppfunc_t
*)0;
2999 rl_directory_rewrite_hook
= bash_directory_completion_hook
;
3000 rl_directory_completion_hook
= (rl_icppfunc_t
*)0;
3004 static rl_icppfunc_t
*
3005 save_directory_hook ()
3009 if (dircomplete_expand
)
3011 ret
= rl_directory_completion_hook
;
3012 rl_directory_completion_hook
= (rl_icppfunc_t
*)NULL
;
3016 ret
= rl_directory_rewrite_hook
;
3017 rl_directory_rewrite_hook
= (rl_icppfunc_t
*)NULL
;
3024 restore_directory_hook (hookf
)
3025 rl_icppfunc_t
*hookf
;
3027 if (dircomplete_expand
)
3028 rl_directory_completion_hook
= hookf
;
3030 rl_directory_rewrite_hook
= hookf
;
3033 /* Expand a filename before the readline completion code passes it to stat(2).
3034 The filename will already have had tilde expansion performed. */
3036 bash_filename_stat_hook (dirname
)
3039 char *local_dirname
, *new_dirname
, *t
;
3040 int should_expand_dirname
, return_value
;
3044 local_dirname
= *dirname
;
3045 should_expand_dirname
= return_value
= 0;
3046 if (t
= mbschr (local_dirname
, '$'))
3047 should_expand_dirname
= '$';
3048 else if (t
= mbschr (local_dirname
, '`')) /* XXX */
3049 should_expand_dirname
= '`';
3051 #if defined (HAVE_LSTAT)
3052 if (should_expand_dirname
&& lstat (local_dirname
, &sb
) == 0)
3054 if (should_expand_dirname
&& stat (local_dirname
, &sb
) == 0)
3056 should_expand_dirname
= 0;
3058 if (should_expand_dirname
)
3060 new_dirname
= savestring (local_dirname
);
3061 wl
= expand_prompt_string (new_dirname
, 0, W_NOCOMSUB
); /* does the right thing */
3065 new_dirname
= string_list (wl
);
3066 /* Tell the completer we actually expanded something and change
3067 *dirname only if we expanded to something non-null -- stat
3068 behaves unpredictably when passed null or empty strings */
3069 if (new_dirname
&& *new_dirname
)
3071 free (local_dirname
); /* XXX */
3072 local_dirname
= *dirname
= new_dirname
;
3073 return_value
= STREQ (local_dirname
, *dirname
) == 0;
3083 /* This is very similar to the code in bash_directory_completion_hook below,
3084 but without spelling correction and not worrying about whether or not
3085 we change relative pathnames. */
3086 if (no_symbolic_links
== 0 && (local_dirname
[0] != '.' || local_dirname
[1]))
3088 char *temp1
, *temp2
;
3090 t
= get_working_directory ("symlink-hook");
3091 temp1
= make_absolute (local_dirname
, t
);
3093 temp2
= sh_canonpath (temp1
, PATH_CHECKDOTDOT
|PATH_CHECKEXISTS
);
3095 /* If we can't canonicalize, bail. */
3099 return return_value
;
3102 free (local_dirname
);
3107 return (return_value
);
3110 /* Handle symbolic link references and other directory name
3111 expansions while hacking completion. This should return 1 if it modifies
3112 the DIRNAME argument, 0 otherwise. It should make sure not to modify
3113 DIRNAME if it returns 0. */
3115 bash_directory_completion_hook (dirname
)
3118 char *local_dirname
, *new_dirname
, *t
;
3119 int return_value
, should_expand_dirname
, nextch
, closer
;
3123 return_value
= should_expand_dirname
= nextch
= closer
= 0;
3124 local_dirname
= *dirname
;
3126 if (t
= mbschr (local_dirname
, '$'))
3128 should_expand_dirname
= '$';
3130 /* Deliberately does not handle the deprecated $[...] arithmetic
3134 else if (nextch
== '{')
3139 else if (local_dirname
[0] == '~')
3140 should_expand_dirname
= '~';
3143 t
= mbschr (local_dirname
, '`');
3144 if (t
&& unclosed_pair (local_dirname
, strlen (local_dirname
), "`") == 0)
3145 should_expand_dirname
= '`';
3148 #if defined (HAVE_LSTAT)
3149 if (should_expand_dirname
&& lstat (local_dirname
, &sb
) == 0)
3151 if (should_expand_dirname
&& stat (local_dirname
, &sb
) == 0)
3153 should_expand_dirname
= 0;
3155 if (should_expand_dirname
)
3157 new_dirname
= savestring (local_dirname
);
3158 wl
= expand_prompt_string (new_dirname
, 0, W_NOCOMSUB
); /* does the right thing */
3161 *dirname
= string_list (wl
);
3162 /* Tell the completer to replace the directory name only if we
3163 actually expanded something. */
3164 return_value
= STREQ (local_dirname
, *dirname
) == 0;
3165 free (local_dirname
);
3168 local_dirname
= *dirname
;
3169 /* XXX - change rl_filename_quote_characters here based on
3170 should_expand_dirname/nextch/closer. This is the only place
3171 custom_filename_quote_characters is modified. */
3172 if (rl_filename_quote_characters
&& *rl_filename_quote_characters
)
3175 i
= strlen (default_filename_quote_characters
);
3176 custom_filename_quote_characters
= xrealloc (custom_filename_quote_characters
, i
+1);
3177 for (i
= j
= 0; c
= default_filename_quote_characters
[i
]; i
++)
3179 if (c
== should_expand_dirname
|| c
== nextch
|| c
== closer
)
3181 custom_filename_quote_characters
[j
++] = c
;
3183 custom_filename_quote_characters
[j
] = '\0';
3184 rl_filename_quote_characters
= custom_filename_quote_characters
;
3185 set_filename_bstab (rl_filename_quote_characters
);
3191 free (local_dirname
);
3192 *dirname
= (char *)xmalloc (1);
3199 /* Dequote the filename even if we don't expand it. */
3200 new_dirname
= bash_dequote_filename (local_dirname
, rl_completion_quote_character
);
3201 return_value
= STREQ (local_dirname
, new_dirname
) == 0;
3202 free (local_dirname
);
3203 local_dirname
= *dirname
= new_dirname
;
3206 /* no_symbolic_links == 0 -> use (default) logical view of the file system.
3207 local_dirname[0] == '.' && local_dirname[1] == '/' means files in the
3208 current directory (./).
3209 local_dirname[0] == '.' && local_dirname[1] == 0 means relative pathnames
3210 in the current directory (e.g., lib/sh).
3211 XXX - should we do spelling correction on these? */
3213 /* This is test as it was in bash-4.2: skip relative pathnames in current
3214 directory. Change test to
3215 (local_dirname[0] != '.' || (local_dirname[1] && local_dirname[1] != '/'))
3216 if we want to skip paths beginning with ./ also. */
3217 if (no_symbolic_links
== 0 && (local_dirname
[0] != '.' || local_dirname
[1]))
3219 char *temp1
, *temp2
;
3222 /* If we have a relative path
3223 (local_dirname[0] != '/' && local_dirname[0] != '.')
3224 that is canonical after appending it to the current directory, then
3227 strcmp (temp1, temp2) == 0
3228 after adding a slash to temp2 below. It should be safe to not
3231 t
= get_working_directory ("symlink-hook");
3232 temp1
= make_absolute (local_dirname
, t
);
3234 temp2
= sh_canonpath (temp1
, PATH_CHECKDOTDOT
|PATH_CHECKEXISTS
);
3236 /* Try spelling correction if initial canonicalization fails. Make
3237 sure we are set to replace the directory name with the results so
3238 subsequent directory checks don't fail. */
3239 if (temp2
== 0 && dircomplete_spelling
&& dircomplete_expand
)
3241 temp2
= dirspell (temp1
);
3246 temp2
= sh_canonpath (temp1
, PATH_CHECKDOTDOT
|PATH_CHECKEXISTS
);
3247 return_value
|= temp2
!= 0;
3250 /* If we can't canonicalize, bail. */
3254 return return_value
;
3256 len1
= strlen (temp1
);
3257 if (temp1
[len1
- 1] == '/')
3259 len2
= strlen (temp2
);
3260 if (len2
> 2) /* don't append `/' to `/' or `//' */
3262 temp2
= (char *)xrealloc (temp2
, len2
+ 2);
3264 temp2
[len2
+ 1] = '\0';
3268 /* dircomplete_expand_relpath == 0 means we want to leave relative
3269 pathnames that are unchanged by canonicalization alone.
3270 *local_dirname != '/' && *local_dirname != '.' == relative pathname
3271 (consistent with general.c:absolute_pathname())
3272 temp1 == temp2 (after appending a slash to temp2) means the pathname
3273 is not changed by canonicalization as described above. */
3274 if (dircomplete_expand_relpath
|| ((local_dirname
[0] != '/' && local_dirname
[0] != '.') && STREQ (temp1
, temp2
) == 0))
3275 return_value
|= STREQ (local_dirname
, temp2
) == 0;
3276 free (local_dirname
);
3281 return (return_value
);
3284 static char **history_completion_array
= (char **)NULL
;
3285 static int harry_size
;
3286 static int harry_len
;
3289 build_history_completion_array ()
3295 /* First, clear out the current dynamic history completion list. */
3298 strvec_dispose (history_completion_array
);
3299 history_completion_array
= (char **)NULL
;
3304 /* Next, grovel each line of history, making each shell-sized token
3305 a separate entry in the history_completion_array. */
3306 hlist
= history_list ();
3310 for (i
= 0; hlist
[i
]; i
++)
3312 for ( --i
; i
>= 0; i
--)
3314 /* Separate each token, and place into an array. */
3315 tokens
= history_tokenize (hlist
[i
]->line
);
3317 for (j
= 0; tokens
&& tokens
[j
]; j
++)
3319 if (harry_len
+ 2 > harry_size
)
3320 history_completion_array
= strvec_resize (history_completion_array
, harry_size
+= 10);
3322 history_completion_array
[harry_len
++] = tokens
[j
];
3323 history_completion_array
[harry_len
] = (char *)NULL
;
3328 /* Sort the complete list of tokens. */
3329 if (dabbrev_expand_active
== 0)
3330 qsort (history_completion_array
, harry_len
, sizeof (char *), (QSFUNC
*)strvec_strcmp
);
3335 history_completion_generator (hint_text
, state
)
3336 const char *hint_text
;
3339 static int local_index
, len
;
3340 static const char *text
;
3342 /* If this is the first call to the generator, then initialize the
3343 list of strings to complete over. */
3346 if (dabbrev_expand_active
) /* This is kind of messy */
3347 rl_completion_suppress_append
= 1;
3349 build_history_completion_array ();
3351 len
= strlen (text
);
3354 while (history_completion_array
&& history_completion_array
[local_index
])
3356 if (strncmp (text
, history_completion_array
[local_index
++], len
) == 0)
3357 return (savestring (history_completion_array
[local_index
- 1]));
3359 return ((char *)NULL
);
3363 dynamic_complete_history (count
, key
)
3367 rl_compentry_func_t
*orig_func
;
3368 rl_completion_func_t
*orig_attempt_func
;
3369 rl_compignore_func_t
*orig_ignore_func
;
3371 orig_func
= rl_completion_entry_function
;
3372 orig_attempt_func
= rl_attempted_completion_function
;
3373 orig_ignore_func
= rl_ignore_some_completions_function
;
3375 rl_completion_entry_function
= history_completion_generator
;
3376 rl_attempted_completion_function
= (rl_completion_func_t
*)NULL
;
3377 rl_ignore_some_completions_function
= filename_completion_ignore
;
3379 /* XXX - use rl_completion_mode here? */
3380 if (rl_last_func
== dynamic_complete_history
)
3381 r
= rl_complete_internal ('?');
3383 r
= rl_complete_internal (TAB
);
3385 rl_completion_entry_function
= orig_func
;
3386 rl_attempted_completion_function
= orig_attempt_func
;
3387 rl_ignore_some_completions_function
= orig_ignore_func
;
3393 bash_dabbrev_expand (count
, key
)
3396 int r
, orig_suppress
, orig_sort
;
3397 rl_compentry_func_t
*orig_func
;
3398 rl_completion_func_t
*orig_attempt_func
;
3399 rl_compignore_func_t
*orig_ignore_func
;
3401 orig_func
= rl_menu_completion_entry_function
;
3402 orig_attempt_func
= rl_attempted_completion_function
;
3403 orig_ignore_func
= rl_ignore_some_completions_function
;
3404 orig_suppress
= rl_completion_suppress_append
;
3405 orig_sort
= rl_sort_completion_matches
;
3407 rl_menu_completion_entry_function
= history_completion_generator
;
3408 rl_attempted_completion_function
= (rl_completion_func_t
*)NULL
;
3409 rl_ignore_some_completions_function
= filename_completion_ignore
;
3410 rl_filename_completion_desired
= 0;
3411 rl_completion_suppress_append
= 1;
3412 rl_sort_completion_matches
= 0;
3414 /* XXX - use rl_completion_mode here? */
3415 dabbrev_expand_active
= 1;
3416 if (rl_last_func
== bash_dabbrev_expand
)
3417 rl_last_func
= rl_menu_complete
;
3418 r
= rl_menu_complete (count
, key
);
3419 dabbrev_expand_active
= 0;
3421 rl_last_func
= bash_dabbrev_expand
;
3422 rl_menu_completion_entry_function
= orig_func
;
3423 rl_attempted_completion_function
= orig_attempt_func
;
3424 rl_ignore_some_completions_function
= orig_ignore_func
;
3425 rl_completion_suppress_append
= orig_suppress
;
3426 rl_sort_completion_matches
= orig_sort
;
3431 #if defined (SPECIFIC_COMPLETION_FUNCTIONS)
3433 bash_complete_username (ignore
, ignore2
)
3434 int ignore
, ignore2
;
3436 return bash_complete_username_internal (rl_completion_mode (bash_complete_username
));
3440 bash_possible_username_completions (ignore
, ignore2
)
3441 int ignore
, ignore2
;
3443 return bash_complete_username_internal ('?');
3447 bash_complete_username_internal (what_to_do
)
3450 return bash_specific_completion (what_to_do
, rl_username_completion_function
);
3454 bash_complete_filename (ignore
, ignore2
)
3455 int ignore
, ignore2
;
3457 return bash_complete_filename_internal (rl_completion_mode (bash_complete_filename
));
3461 bash_possible_filename_completions (ignore
, ignore2
)
3462 int ignore
, ignore2
;
3464 return bash_complete_filename_internal ('?');
3468 bash_complete_filename_internal (what_to_do
)
3471 rl_compentry_func_t
*orig_func
;
3472 rl_completion_func_t
*orig_attempt_func
;
3473 rl_icppfunc_t
*orig_dir_func
;
3474 rl_compignore_func_t
*orig_ignore_func
;
3475 /*const*/ char *orig_rl_completer_word_break_characters
;
3478 orig_func
= rl_completion_entry_function
;
3479 orig_attempt_func
= rl_attempted_completion_function
;
3480 orig_ignore_func
= rl_ignore_some_completions_function
;
3481 orig_rl_completer_word_break_characters
= rl_completer_word_break_characters
;
3483 orig_dir_func
= save_directory_hook ();
3485 rl_completion_entry_function
= rl_filename_completion_function
;
3486 rl_attempted_completion_function
= (rl_completion_func_t
*)NULL
;
3487 rl_ignore_some_completions_function
= filename_completion_ignore
;
3488 rl_completer_word_break_characters
= " \t\n\"\'";
3490 r
= rl_complete_internal (what_to_do
);
3492 rl_completion_entry_function
= orig_func
;
3493 rl_attempted_completion_function
= orig_attempt_func
;
3494 rl_ignore_some_completions_function
= orig_ignore_func
;
3495 rl_completer_word_break_characters
= orig_rl_completer_word_break_characters
;
3497 restore_directory_hook (orig_dir_func
);
3503 bash_complete_hostname (ignore
, ignore2
)
3504 int ignore
, ignore2
;
3506 return bash_complete_hostname_internal (rl_completion_mode (bash_complete_hostname
));
3510 bash_possible_hostname_completions (ignore
, ignore2
)
3511 int ignore
, ignore2
;
3513 return bash_complete_hostname_internal ('?');
3517 bash_complete_variable (ignore
, ignore2
)
3518 int ignore
, ignore2
;
3520 return bash_complete_variable_internal (rl_completion_mode (bash_complete_variable
));
3524 bash_possible_variable_completions (ignore
, ignore2
)
3525 int ignore
, ignore2
;
3527 return bash_complete_variable_internal ('?');
3531 bash_complete_command (ignore
, ignore2
)
3532 int ignore
, ignore2
;
3534 return bash_complete_command_internal (rl_completion_mode (bash_complete_command
));
3538 bash_possible_command_completions (ignore
, ignore2
)
3539 int ignore
, ignore2
;
3541 return bash_complete_command_internal ('?');
3545 bash_complete_hostname_internal (what_to_do
)
3548 return bash_specific_completion (what_to_do
, hostname_completion_function
);
3552 bash_complete_variable_internal (what_to_do
)
3555 return bash_specific_completion (what_to_do
, variable_completion_function
);
3559 bash_complete_command_internal (what_to_do
)
3562 return bash_specific_completion (what_to_do
, command_word_completion_function
);
3565 static char *globtext
;
3566 static char *globorig
;
3569 glob_complete_word (text
, state
)
3573 static char **matches
= (char **)NULL
;
3580 rl_filename_completion_desired
= 1;
3582 if (globorig
!= globtext
)
3586 ttext
= bash_tilde_expand (text
, 0);
3588 if (rl_explicit_arg
)
3590 globorig
= savestring (ttext
);
3591 glen
= strlen (ttext
);
3592 globtext
= (char *)xmalloc (glen
+ 2);
3593 strcpy (globtext
, ttext
);
3594 globtext
[glen
] = '*';
3595 globtext
[glen
+1] = '\0';
3598 globtext
= globorig
= savestring (ttext
);
3603 matches
= shell_glob_filename (globtext
);
3604 if (GLOB_FAILED (matches
))
3605 matches
= (char **)NULL
;
3609 ret
= matches
? matches
[ind
] : (char *)NULL
;
3615 bash_glob_completion_internal (what_to_do
)
3618 return bash_specific_completion (what_to_do
, glob_complete_word
);
3621 /* A special quoting function so we don't end up quoting globbing characters
3622 in the word if there are no matches or multiple matches. */
3624 bash_glob_quote_filename (s
, rtype
, qcp
)
3629 if (globorig
&& qcp
&& *qcp
== '\0' && STREQ (s
, globorig
))
3630 return (savestring (s
));
3632 return (bash_quote_filename (s
, rtype
, qcp
));
3636 bash_glob_complete_word (count
, key
)
3640 rl_quote_func_t
*orig_quoting_function
;
3642 if (rl_editing_mode
== EMACS_EDITING_MODE
)
3643 rl_explicit_arg
= 1; /* force `*' append */
3644 orig_quoting_function
= rl_filename_quoting_function
;
3645 rl_filename_quoting_function
= bash_glob_quote_filename
;
3647 r
= bash_glob_completion_internal (rl_completion_mode (bash_glob_complete_word
));
3649 rl_filename_quoting_function
= orig_quoting_function
;
3654 bash_glob_expand_word (count
, key
)
3657 return bash_glob_completion_internal ('*');
3661 bash_glob_list_expansions (count
, key
)
3664 return bash_glob_completion_internal ('?');
3668 bash_specific_completion (what_to_do
, generator
)
3670 rl_compentry_func_t
*generator
;
3672 rl_compentry_func_t
*orig_func
;
3673 rl_completion_func_t
*orig_attempt_func
;
3674 rl_compignore_func_t
*orig_ignore_func
;
3677 orig_func
= rl_completion_entry_function
;
3678 orig_attempt_func
= rl_attempted_completion_function
;
3679 orig_ignore_func
= rl_ignore_some_completions_function
;
3680 rl_completion_entry_function
= generator
;
3681 rl_attempted_completion_function
= NULL
;
3682 rl_ignore_some_completions_function
= orig_ignore_func
;
3684 r
= rl_complete_internal (what_to_do
);
3686 rl_completion_entry_function
= orig_func
;
3687 rl_attempted_completion_function
= orig_attempt_func
;
3688 rl_ignore_some_completions_function
= orig_ignore_func
;
3693 #endif /* SPECIFIC_COMPLETION_FUNCTIONS */
3695 #if defined (VI_MODE)
3696 /* Completion, from vi mode's point of view. This is a modified version of
3697 rl_vi_complete which uses the bash globbing code to implement what POSIX
3698 specifies, which is to append a `*' and attempt filename generation (which
3699 has the side effect of expanding any globbing characters in the word). */
3701 bash_vi_complete (count
, key
)
3704 #if defined (SPECIFIC_COMPLETION_FUNCTIONS)
3708 if ((rl_point
< rl_end
) && (!whitespace (rl_line_buffer
[rl_point
])))
3710 if (!whitespace (rl_line_buffer
[rl_point
+ 1]))
3711 rl_vi_end_word (1, 'E');
3715 /* Find boundaries of current word, according to vi definition of a
3721 rl_vi_bWord (1, 'B');
3726 t
= substring (rl_line_buffer
, p
, rl_point
);
3729 if (t
&& glob_pattern_p (t
) == 0)
3730 rl_explicit_arg
= 1; /* XXX - force glob_complete_word to append `*' */
3733 if (key
== '*') /* Expansion and replacement. */
3734 r
= bash_glob_expand_word (count
, key
);
3735 else if (key
== '=') /* List possible completions. */
3736 r
= bash_glob_list_expansions (count
, key
);
3737 else if (key
== '\\') /* Standard completion */
3738 r
= bash_glob_complete_word (count
, key
);
3740 r
= rl_complete (0, key
);
3742 if (key
== '*' || key
== '\\')
3743 rl_vi_start_inserting (key
, 1, 1);
3747 return rl_vi_complete (count
, key
);
3748 #endif /* !SPECIFIC_COMPLETION_FUNCTIONS */
3750 #endif /* VI_MODE */
3752 /* Filename quoting for completion. */
3753 /* A function to strip unquoted quote characters (single quotes, double
3754 quotes, and backslashes). It allows single quotes to appear
3755 within double quotes, and vice versa. It should be smarter. */
3757 bash_dequote_filename (text
, quote_char
)
3765 ret
= (char *)xmalloc (l
+ 1);
3766 for (quoted
= quote_char
, p
= text
, r
= ret
; p
&& *p
; p
++)
3768 /* Allow backslash-escaped characters to pass through unscathed. */
3771 /* Backslashes are preserved within single quotes. */
3774 /* Backslashes are preserved within double quotes unless the
3775 character is one that is defined to be escaped */
3776 else if (quoted
== '"' && ((sh_syntaxtab
[p
[1]] & CBSDQUOTE
) == 0))
3781 return ret
; /* XXX - was break; */
3785 if (quoted
&& *p
== quoted
)
3791 if (quoted
== 0 && (*p
== '\'' || *p
== '"'))
3802 /* Quote characters that the readline completion code would treat as
3803 word break characters with backslashes. Pass backslash-quoted
3804 characters through without examination. */
3806 quote_word_break_chars (text
)
3813 ret
= (char *)xmalloc ((2 * l
) + 1);
3814 for (s
= text
, r
= ret
; *s
; s
++)
3816 /* Pass backslash-quoted characters through, including the backslash. */
3825 /* OK, we have an unquoted character. Check its presence in
3826 rl_completer_word_break_characters. */
3827 if (mbschr (rl_completer_word_break_characters
, *s
))
3829 /* XXX -- check for standalone tildes here and backslash-quote them */
3830 if (s
== text
&& *s
== '~' && file_exists (text
))
3838 /* Use characters in STRING to populate the table of characters that should
3839 be backslash-quoted. The table will be used for sh_backslash_quote from
3842 set_filename_bstab (string
)
3847 memset (filename_bstab
, 0, sizeof (filename_bstab
));
3848 for (s
= string
; s
&& *s
; s
++)
3849 filename_bstab
[*s
] = 1;
3852 /* Quote a filename using double quotes, single quotes, or backslashes
3853 depending on the value of completion_quoting_style. If we're
3854 completing using backslashes, we need to quote some additional
3855 characters (those that readline treats as word breaks), so we call
3856 quote_word_break_chars on the result. This returns newly-allocated
3859 bash_quote_filename (s
, rtype
, qcp
)
3864 char *rtext
, *mtext
, *ret
;
3867 rtext
= (char *)NULL
;
3869 /* If RTYPE == MULT_MATCH, it means that there is
3870 more than one match. In this case, we do not add
3871 the closing quote or attempt to perform tilde
3872 expansion. If RTYPE == SINGLE_MATCH, we try
3873 to perform tilde expansion, because single and double
3874 quotes inhibit tilde expansion by the shell. */
3876 cs
= completion_quoting_style
;
3877 /* Might need to modify the default completion style based on *qcp,
3878 since it's set to any user-provided opening quote. We also change
3879 to single-quoting if there is no user-provided opening quote and
3880 the word being completed contains newlines, since those are not
3881 quoted correctly using backslashes (a backslash-newline pair is
3882 special to the shell parser). */
3883 if (*qcp
== '\0' && cs
== COMPLETE_BSQUOTE
&& mbschr (s
, '\n'))
3884 cs
= COMPLETE_SQUOTE
;
3885 else if (*qcp
== '"')
3886 cs
= COMPLETE_DQUOTE
;
3887 else if (*qcp
== '\'')
3888 cs
= COMPLETE_SQUOTE
;
3889 #if defined (BANG_HISTORY)
3890 else if (*qcp
== '\0' && history_expansion
&& cs
== COMPLETE_DQUOTE
&&
3891 history_expansion_inhibited
== 0 && mbschr (s
, '!'))
3892 cs
= COMPLETE_BSQUOTE
;
3894 if (*qcp
== '"' && history_expansion
&& cs
== COMPLETE_DQUOTE
&&
3895 history_expansion_inhibited
== 0 && mbschr (s
, '!'))
3897 cs
= COMPLETE_BSQUOTE
;
3902 /* Don't tilde-expand backslash-quoted filenames, since only single and
3903 double quotes inhibit tilde expansion. */
3905 if (mtext
[0] == '~' && rtype
== SINGLE_MATCH
&& cs
!= COMPLETE_BSQUOTE
)
3906 mtext
= bash_tilde_expand (s
, 0);
3910 case COMPLETE_DQUOTE
:
3911 rtext
= sh_double_quote (mtext
);
3913 case COMPLETE_SQUOTE
:
3914 rtext
= sh_single_quote (mtext
);
3916 case COMPLETE_BSQUOTE
:
3917 rtext
= sh_backslash_quote (mtext
, complete_fullquote
? 0 : filename_bstab
, 0);
3924 /* We may need to quote additional characters: those that readline treats
3925 as word breaks that are not quoted by backslash_quote. */
3926 if (rtext
&& cs
== COMPLETE_BSQUOTE
)
3928 mtext
= quote_word_break_chars (rtext
);
3933 /* Leave the opening quote intact. The readline completion code takes
3934 care of avoiding doubled opening quotes. */
3937 rlen
= strlen (rtext
);
3938 ret
= (char *)xmalloc (rlen
+ 1);
3939 strcpy (ret
, rtext
);
3943 ret
= (char *)xmalloc (rlen
= 1);
3947 /* If there are multiple matches, cut off the closing quote. */
3948 if (rtype
== MULT_MATCH
&& cs
!= COMPLETE_BSQUOTE
)
3949 ret
[rlen
- 1] = '\0';
3954 /* Support for binding readline key sequences to Unix commands. */
3955 static Keymap cmd_xmap
;
3966 x
= putc (c
, rl_outstream
);
3973 bash_execute_unix_command (count
, key
)
3974 int count
; /* ignored */
3977 Keymap ckmap
; /* current keymap */
3978 Keymap xkmap
; /* unix command executing keymap */
3979 rl_command_func_t
*func
;
3983 sh_parser_state_t ps
;
3984 char *cmd
, *value
, *l
, *l1
, *ce
;
3986 char ibuf
[INT_STRLEN_BOUND(int) + 1];
3988 /* First, we need to find the right command to execute. This is tricky,
3989 because we might have already indirected into another keymap, so we
3990 have to walk cmd_xmap using the entire key sequence. */
3991 cmd
= (char *)rl_function_of_keyseq (rl_executing_keyseq
, cmd_xmap
, &type
);
3993 if (cmd
== 0 || type
!= ISMACR
)
3996 internal_error (_("bash_execute_unix_command: cannot find keymap for command"));
3997 rl_forced_update_display ();
4001 ce
= rl_get_termcap ("ce");
4002 if (ce
) /* clear current line */
4004 fprintf (rl_outstream
, "\r");
4005 tputs (ce
, 1, putx
);
4006 fflush (rl_outstream
);
4009 rl_crlf (); /* move to a new line */
4011 v
= bind_variable ("READLINE_LINE", rl_line_buffer
, 0);
4013 VSETATTR (v
, att_exported
);
4014 l
= v
? value_cell (v
) : 0;
4015 value
= inttostr (rl_point
, ibuf
, sizeof (ibuf
));
4016 v
= bind_int_variable ("READLINE_POINT", value
);
4018 VSETATTR (v
, att_exported
);
4019 array_needs_making
= 1;
4021 save_parser_state (&ps
);
4022 r
= parse_and_execute (cmd
, "bash_execute_unix_command", SEVAL_NOHIST
|SEVAL_NOFREE
);
4023 restore_parser_state (&ps
);
4025 v
= find_variable ("READLINE_LINE");
4026 l1
= v
? value_cell (v
) : 0;
4028 maybe_make_readline_line (value_cell (v
));
4029 v
= find_variable ("READLINE_POINT");
4030 if (v
&& legal_number (value_cell (v
), &mi
))
4036 if (rl_point
> rl_end
)
4038 else if (rl_point
< 0)
4043 unbind_variable ("READLINE_LINE");
4044 unbind_variable ("READLINE_POINT");
4045 array_needs_making
= 1;
4047 /* and restore the readline buffer and display after command execution. */
4048 rl_forced_update_display ();
4053 print_unix_command_map ()
4057 save
= rl_get_keymap ();
4058 rl_set_keymap (cmd_xmap
);
4059 rl_macro_dumper (1);
4060 rl_set_keymap (save
);
4065 init_unix_command_map ()
4067 cmd_xmap
= rl_make_bare_keymap ();
4071 isolate_sequence (string
, ind
, need_dquote
, startp
)
4073 int ind
, need_dquote
, *startp
;
4076 int c
, passc
, delim
;
4078 for (i
= ind
; string
[i
] && whitespace (string
[i
]); i
++)
4080 /* NEED_DQUOTE means that the first non-white character *must* be `"'. */
4081 if (need_dquote
&& string
[i
] != '"')
4083 builtin_error (_("%s: first non-whitespace character is not `\"'"), string
);
4087 /* We can have delimited strings even if NEED_DQUOTE == 0, like the command
4088 string to bind the key sequence to. */
4089 delim
= (string
[i
] == '"' || string
[i
] == '\'') ? string
[i
] : 0;
4092 *startp
= delim
? ++i
: i
;
4094 for (passc
= 0; c
= string
[i
]; i
++)
4110 if (delim
&& string
[i
] != delim
)
4112 builtin_error (_("no closing `%c' in %s"), delim
, string
);
4120 bind_keyseq_to_unix_command (line
)
4128 init_unix_command_map ();
4130 kmap
= rl_get_keymap ();
4132 /* We duplicate some of the work done by rl_parse_and_bind here, but
4133 this code only has to handle `"keyseq": ["]command["]' and can
4134 generate an error for anything else. */
4135 i
= isolate_sequence (line
, 0, 1, &kstart
);
4139 /* Create the key sequence string to pass to rl_generic_bind */
4140 kseq
= substring (line
, kstart
, i
);
4142 for ( ; line
[i
] && line
[i
] != ':'; i
++)
4146 builtin_error (_("%s: missing colon separator"), line
);
4151 i
= isolate_sequence (line
, i
+ 1, 0, &kstart
);
4158 /* Create the value string containing the command to execute. */
4159 value
= substring (line
, kstart
, i
);
4161 /* Save the command to execute and the key sequence in the CMD_XMAP */
4162 rl_generic_bind (ISMACR
, kseq
, value
, cmd_xmap
);
4164 /* and bind the key sequence in the current keymap to a function that
4165 understands how to execute from CMD_XMAP */
4166 rl_bind_keyseq_in_map (kseq
, bash_execute_unix_command
, kmap
);
4172 /* Used by the programmable completion code. Complete TEXT as a filename,
4173 but return only directories as matches. Dequotes the filename before
4174 attempting to find matches. */
4176 bash_directory_completion_matches (text
)
4183 qc
= rl_dispatching
? rl_completion_quote_character
: 0;
4184 /* If rl_completion_found_quote != 0, rl_completion_matches will call the
4185 filename dequoting function, causing the directory name to be dequoted
4187 if (rl_dispatching
&& rl_completion_found_quote
== 0)
4188 dfn
= bash_dequote_filename ((char *)text
, qc
);
4191 m1
= rl_completion_matches (dfn
, rl_filename_completion_function
);
4195 if (m1
== 0 || m1
[0] == 0)
4197 /* We don't bother recomputing the lcd of the matches, because it will just
4198 get thrown away by the programmable completion code and recomputed
4200 (void)bash_ignore_filenames (m1
);
4205 bash_dequote_text (text
)
4211 qc
= (text
[0] == '"' || text
[0] == '\'') ? text
[0] : 0;
4212 dtxt
= bash_dequote_filename ((char *)text
, qc
);
4216 /* This event hook is designed to be called after readline receives a signal
4217 that interrupts read(2). It gives reasonable responsiveness to interrupts
4218 and fatal signals without executing too much code in a signal handler
4223 /* If we're going to longjmp to top_level, make sure we clean up readline.
4224 check_signals will call QUIT, which will eventually longjmp to top_level,
4225 calling run_interrupt_trap along the way. The check for sigalrm_seen is
4226 to clean up the read builtin's state. */
4227 if (terminating_signal
|| interrupt_state
|| sigalrm_seen
)
4228 rl_cleanup_after_signal ();
4229 bashline_reset_event_hook ();
4230 check_signals_and_traps (); /* XXX */
4234 #endif /* READLINE */