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Commit | Line | Data |
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726f6388 JA |
1 | /* bashline.c -- Bash's interface to the readline library. */ |
2 | ||
ac50fbac | 3 | /* Copyright (C) 1987-2013 Free Software Foundation, Inc. |
726f6388 JA |
4 | |
5 | This file is part of GNU Bash, the Bourne Again SHell. | |
6 | ||
3185942a JA |
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. | |
726f6388 | 11 | |
3185942a JA |
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. | |
726f6388 JA |
16 | |
17 | You should have received a copy of the GNU General Public License | |
3185942a JA |
18 | along with Bash. If not, see <http://www.gnu.org/licenses/>. |
19 | */ | |
726f6388 | 20 | |
ccc6cda3 JA |
21 | #include "config.h" |
22 | ||
23 | #if defined (READLINE) | |
24 | ||
726f6388 JA |
25 | #include "bashtypes.h" |
26 | #include "posixstat.h" | |
27 | ||
ccc6cda3 JA |
28 | #if defined (HAVE_UNISTD_H) |
29 | # include <unistd.h> | |
30 | #endif | |
31 | ||
f73dda09 JA |
32 | #if defined (HAVE_GRP_H) |
33 | # include <grp.h> | |
34 | #endif | |
35 | ||
7117c2d2 JA |
36 | #if defined (HAVE_NETDB_H) |
37 | # include <netdb.h> | |
38 | #endif | |
39 | ||
ac50fbac CR |
40 | #include <signal.h> |
41 | ||
726f6388 | 42 | #include <stdio.h> |
f73dda09 | 43 | #include "chartypes.h" |
726f6388 | 44 | #include "bashansi.h" |
b80f6443 JA |
45 | #include "bashintl.h" |
46 | ||
726f6388 | 47 | #include "shell.h" |
7117c2d2 | 48 | #include "input.h" |
726f6388 | 49 | #include "builtins.h" |
726f6388 | 50 | #include "bashhist.h" |
ccc6cda3 | 51 | #include "bashline.h" |
726f6388 | 52 | #include "execute_cmd.h" |
cce855bc | 53 | #include "findcmd.h" |
ccc6cda3 | 54 | #include "pathexp.h" |
3185942a | 55 | #include "shmbutil.h" |
ac50fbac | 56 | #include "trap.h" |
3185942a | 57 | |
ccc6cda3 | 58 | #include "builtins/common.h" |
3185942a | 59 | |
ccc6cda3 JA |
60 | #include <readline/rlconf.h> |
61 | #include <readline/readline.h> | |
62 | #include <readline/history.h> | |
63 | ||
64 | #include <glob/glob.h> | |
726f6388 JA |
65 | |
66 | #if defined (ALIAS) | |
67 | # include "alias.h" | |
68 | #endif | |
69 | ||
bb70624e JA |
70 | #if defined (PROGRAMMABLE_COMPLETION) |
71 | # include "pcomplete.h" | |
72 | #endif | |
73 | ||
7117c2d2 JA |
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 | |
80 | #endif | |
81 | ||
3185942a JA |
82 | #define RL_BOOLEAN_VARIABLE_VALUE(s) ((s)[0] == 'o' && (s)[1] == 'n' && (s)[2] == '\0') |
83 | ||
726f6388 | 84 | #if defined (BRACE_COMPLETION) |
28ef6c31 | 85 | extern int bash_brace_completion __P((int, int)); |
726f6388 JA |
86 | #endif /* BRACE_COMPLETION */ |
87 | ||
0001803f | 88 | /* To avoid including curses.h/term.h/termcap.h and that whole mess. */ |
ac50fbac CR |
89 | #ifdef _MINIX |
90 | extern int tputs __P((const char *string, int nlines, void (*outx)(int))); | |
91 | #else | |
0001803f | 92 | extern int tputs __P((const char *string, int nlines, int (*outx)(int))); |
ac50fbac | 93 | #endif |
0001803f | 94 | |
28ef6c31 JA |
95 | /* Forward declarations */ |
96 | ||
726f6388 | 97 | /* Functions bound to keys in Readline for Bash users. */ |
28ef6c31 JA |
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)); | |
101 | ||
102 | static int bash_ignore_filenames __P((char **)); | |
103 | static int bash_ignore_everything __P((char **)); | |
104 | ||
cce855bc | 105 | #if defined (BANG_HISTORY) |
f73dda09 | 106 | static char *history_expand_line_internal __P((char *)); |
28ef6c31 JA |
107 | static int history_expand_line __P((int, int)); |
108 | static int tcsh_magic_space __P((int, int)); | |
cce855bc | 109 | #endif /* BANG_HISTORY */ |
d166f048 | 110 | #ifdef ALIAS |
28ef6c31 | 111 | static int alias_expand_line __P((int, int)); |
cce855bc JA |
112 | #endif |
113 | #if defined (BANG_HISTORY) && defined (ALIAS) | |
28ef6c31 | 114 | static int history_and_alias_expand_line __P((int, int)); |
d166f048 | 115 | #endif |
726f6388 | 116 | |
3185942a JA |
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)); | |
121 | ||
726f6388 | 122 | /* Helper functions for Readline. */ |
3185942a | 123 | static char *restore_tilde __P((char *, char *)); |
ac50fbac | 124 | static char *maybe_restore_tilde __P((char *, char *)); |
3185942a | 125 | |
0001803f | 126 | static char *bash_filename_rewrite_hook __P((char *, int)); |
ac50fbac | 127 | |
95732b49 | 128 | static void bash_directory_expansion __P((char **)); |
ac50fbac CR |
129 | static int bash_filename_stat_hook __P((char **)); |
130 | static int bash_command_name_stat_hook __P((char **)); | |
f73dda09 JA |
131 | static int bash_directory_completion_hook __P((char **)); |
132 | static int filename_completion_ignore __P((char **)); | |
28ef6c31 | 133 | static int bash_push_line __P((void)); |
726f6388 | 134 | |
ac50fbac CR |
135 | static int executable_completion __P((const char *, int)); |
136 | ||
16b2d7f4 | 137 | static rl_icppfunc_t *save_directory_hook __P((void)); |
ac50fbac | 138 | static void restore_directory_hook __P((rl_icppfunc_t)); |
16b2d7f4 | 139 | |
f73dda09 JA |
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 *)); | |
143 | ||
144 | static int check_redir __P((int)); | |
28ef6c31 JA |
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)); | |
ccc6cda3 | 149 | |
f73dda09 JA |
150 | static void build_history_completion_array __P((void)); |
151 | static char *history_completion_generator __P((const char *, int)); | |
28ef6c31 | 152 | static int dynamic_complete_history __P((int, int)); |
3185942a | 153 | static int bash_dabbrev_expand __P((int, int)); |
726f6388 | 154 | |
f73dda09 | 155 | static void initialize_hostname_list __P((void)); |
28ef6c31 | 156 | static void add_host_name __P((char *)); |
f73dda09 JA |
157 | static void snarf_hosts_from_file __P((char *)); |
158 | static char **hostnames_matching __P((char *)); | |
159 | ||
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 *)); | |
28ef6c31 JA |
164 | |
165 | static char *bash_dequote_filename __P((char *, int)); | |
f73dda09 | 166 | static char *quote_word_break_chars __P((char *)); |
ac50fbac | 167 | static void set_filename_bstab __P((const char *)); |
28ef6c31 | 168 | static char *bash_quote_filename __P((char *, int, char *)); |
ccc6cda3 | 169 | |
ac50fbac CR |
170 | #ifdef _MINIX |
171 | static void putx __P((int)); | |
172 | #else | |
0001803f | 173 | static int putx __P((int)); |
ac50fbac | 174 | #endif |
f73dda09 JA |
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 *)); | |
178 | ||
179 | static int set_saved_history __P((void)); | |
180 | ||
ccc6cda3 | 181 | #if defined (ALIAS) |
28ef6c31 | 182 | static int posix_edit_macros __P((int, int)); |
ccc6cda3 | 183 | #endif |
726f6388 | 184 | |
ac50fbac CR |
185 | static int bash_event_hook __P((void)); |
186 | ||
bb70624e | 187 | #if defined (PROGRAMMABLE_COMPLETION) |
f73dda09 JA |
188 | static int find_cmd_start __P((int)); |
189 | static int find_cmd_end __P((int)); | |
ac50fbac | 190 | static char *find_cmd_name __P((int, int *, int *)); |
f73dda09 JA |
191 | static char *prog_complete_return __P((const char *, int)); |
192 | ||
bb70624e | 193 | static char **prog_complete_matches; |
bb70624e JA |
194 | #endif |
195 | ||
726f6388 | 196 | /* Variables used here but defined in other files. */ |
b80f6443 JA |
197 | #if defined (BANG_HISTORY) |
198 | extern int hist_verify; | |
199 | #endif | |
200 | ||
495aee44 CR |
201 | extern int current_command_line_count, saved_command_line_count; |
202 | extern int last_command_exit_value; | |
3185942a | 203 | extern int array_needs_making; |
726f6388 | 204 | extern int posixly_correct, no_symbolic_links; |
84c617ec | 205 | extern int sigalrm_seen; |
726f6388 JA |
206 | extern char *current_prompt_string, *ps1_prompt; |
207 | extern STRING_INT_ALIST word_token_alist[]; | |
b80f6443 | 208 | extern sh_builtin_func_t *last_shell_builtin, *this_shell_builtin; |
726f6388 JA |
209 | |
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 | |
215 | ||
216 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
28ef6c31 JA |
217 | static int bash_specific_completion __P((int, rl_compentry_func_t *)); |
218 | ||
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)); | |
224 | ||
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)); | |
f73dda09 JA |
235 | |
236 | static char *glob_complete_word __P((const char *, int)); | |
237 | static int bash_glob_completion_internal __P((int)); | |
7117c2d2 | 238 | static int bash_glob_complete_word __P((int, int)); |
f73dda09 JA |
239 | static int bash_glob_expand_word __P((int, int)); |
240 | static int bash_glob_list_expansions __P((int, int)); | |
b80f6443 | 241 | |
726f6388 JA |
242 | #endif /* SPECIFIC_COMPLETION_FUNCTIONS */ |
243 | ||
7117c2d2 | 244 | static int edit_and_execute_command __P((int, int, int, char *)); |
726f6388 | 245 | #if defined (VI_MODE) |
28ef6c31 | 246 | static int vi_edit_and_execute_command __P((int, int)); |
b80f6443 | 247 | static int bash_vi_complete __P((int, int)); |
726f6388 | 248 | #endif |
7117c2d2 | 249 | static int emacs_edit_and_execute_command __P((int, int)); |
726f6388 | 250 | |
ccc6cda3 JA |
251 | /* Non-zero once initalize_readline () has been called. */ |
252 | int bash_readline_initialized = 0; | |
253 | ||
254 | /* If non-zero, we do hostname completion, breaking words at `@' and | |
255 | trying to complete the stuff after the `@' from our own internal | |
256 | host list. */ | |
257 | int perform_hostname_completion = 1; | |
258 | ||
bb70624e JA |
259 | /* If non-zero, we don't do command completion on an empty line. */ |
260 | int no_empty_command_completion; | |
261 | ||
b80f6443 JA |
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; | |
266 | ||
3185942a JA |
267 | /* Perform spelling correction on directory names during word completion */ |
268 | int dircomplete_spelling = 0; | |
269 | ||
16b2d7f4 | 270 | /* Expand directory names during word/filename completion. */ |
ac50fbac CR |
271 | #if DIRCOMPLETE_EXPAND_DEFAULT |
272 | int dircomplete_expand = 1; | |
273 | int dircomplete_expand_relpath = 1; | |
274 | #else | |
16b2d7f4 CR |
275 | int dircomplete_expand = 0; |
276 | int dircomplete_expand_relpath = 0; | |
ac50fbac CR |
277 | #endif |
278 | ||
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; | |
16b2d7f4 | 285 | |
ccc6cda3 JA |
286 | static char *bash_completer_word_break_characters = " \t\n\"'@><=;|&(:"; |
287 | static char *bash_nohostname_word_break_characters = " \t\n\"'><=;|&(:"; | |
b80f6443 | 288 | /* )) */ |
ccc6cda3 | 289 | |
16b2d7f4 CR |
290 | static const char *default_filename_quote_characters = " \t\n\\\"'@<>=;|&()#$`?*[!:{~"; /*}*/ |
291 | static char *custom_filename_quote_characters = 0; | |
ac50fbac | 292 | static char filename_bstab[256]; |
16b2d7f4 | 293 | |
28ef6c31 | 294 | static rl_hook_func_t *old_rl_startup_hook = (rl_hook_func_t *)NULL; |
726f6388 | 295 | |
95732b49 JA |
296 | static int dot_in_path = 0; |
297 | ||
0001803f CR |
298 | /* Set to non-zero when dabbrev-expand is running */ |
299 | static int dabbrev_expand_active = 0; | |
300 | ||
ccc6cda3 JA |
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 | |
305 | */ | |
306 | #define COMPLETE_DQUOTE 1 | |
307 | #define COMPLETE_SQUOTE 2 | |
308 | #define COMPLETE_BSQUOTE 3 | |
309 | static int completion_quoting_style = COMPLETE_BSQUOTE; | |
310 | ||
0628567a JA |
311 | /* Flag values for the final argument to bash_default_completion */ |
312 | #define DEFCOMP_CMDPOS 1 | |
313 | ||
726f6388 JA |
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. */ | |
316 | void | |
317 | posix_readline_initialize (on_or_off) | |
318 | int on_or_off; | |
319 | { | |
ccc6cda3 JA |
320 | if (on_or_off) |
321 | rl_variable_bind ("comment-begin", "#"); | |
726f6388 | 322 | #if defined (VI_MODE) |
7117c2d2 | 323 | rl_bind_key_in_map (CTRL ('I'), on_or_off ? rl_insert : rl_complete, vi_insertion_keymap); |
ccc6cda3 JA |
324 | #endif |
325 | } | |
326 | ||
3185942a JA |
327 | void |
328 | reset_completer_word_break_chars () | |
329 | { | |
330 | rl_completer_word_break_characters = perform_hostname_completion ? savestring (bash_completer_word_break_characters) : savestring (bash_nohostname_word_break_characters); | |
331 | } | |
332 | ||
b80f6443 JA |
333 | /* When this function returns, rl_completer_word_break_characters points to |
334 | dynamically allocated memory. */ | |
f73dda09 | 335 | int |
ccc6cda3 JA |
336 | enable_hostname_completion (on_or_off) |
337 | int on_or_off; | |
338 | { | |
f73dda09 | 339 | int old_value; |
b80f6443 | 340 | char *at, *nv, *nval; |
f73dda09 JA |
341 | |
342 | old_value = perform_hostname_completion; | |
343 | ||
726f6388 JA |
344 | if (on_or_off) |
345 | { | |
ccc6cda3 JA |
346 | perform_hostname_completion = 1; |
347 | rl_special_prefixes = "$@"; | |
726f6388 JA |
348 | } |
349 | else | |
ccc6cda3 JA |
350 | { |
351 | perform_hostname_completion = 0; | |
352 | rl_special_prefixes = "$"; | |
b80f6443 JA |
353 | } |
354 | ||
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. */ | |
358 | ||
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. */ | |
362 | ||
363 | if (bash_readline_initialized == 0 && | |
364 | (rl_completer_word_break_characters == 0 || | |
365 | rl_completer_word_break_characters == rl_basic_word_break_characters)) | |
366 | { | |
367 | if (on_or_off) | |
368 | rl_completer_word_break_characters = savestring (bash_completer_word_break_characters); | |
369 | else | |
370 | rl_completer_word_break_characters = savestring (bash_nohostname_word_break_characters); | |
371 | } | |
372 | else | |
373 | { | |
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)) | |
eb873671 | 377 | return old_value; |
b80f6443 JA |
378 | |
379 | /* We have something to do. Do it. */ | |
380 | nval = (char *)xmalloc (strlen (rl_completer_word_break_characters) + 1 + on_or_off); | |
381 | ||
382 | if (on_or_off == 0) | |
383 | { | |
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; ) | |
388 | if (*at != '@') | |
389 | *nv++ = *at++; | |
390 | else | |
391 | at++; | |
392 | *nv = '\0'; | |
393 | } | |
394 | else | |
395 | { | |
396 | nval[0] = '@'; | |
397 | strcpy (nval + 1, rl_completer_word_break_characters); | |
398 | } | |
399 | ||
400 | free (rl_completer_word_break_characters); | |
401 | rl_completer_word_break_characters = nval; | |
ccc6cda3 | 402 | } |
f73dda09 JA |
403 | |
404 | return (old_value); | |
ccc6cda3 | 405 | } |
726f6388 JA |
406 | |
407 | /* Called once from parse.y if we are going to use readline. */ | |
408 | void | |
409 | initialize_readline () | |
410 | { | |
b80f6443 JA |
411 | rl_command_func_t *func; |
412 | char kseq[2]; | |
413 | ||
726f6388 JA |
414 | if (bash_readline_initialized) |
415 | return; | |
416 | ||
417 | rl_terminal_name = get_string_value ("TERM"); | |
418 | rl_instream = stdin; | |
419 | rl_outstream = stderr; | |
726f6388 JA |
420 | |
421 | /* Allow conditional parsing of the ~/.inputrc file. */ | |
422 | rl_readline_name = "Bash"; | |
423 | ||
28ef6c31 JA |
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); | |
cce855bc | 427 | #ifdef BANG_HISTORY |
28ef6c31 JA |
428 | rl_add_defun ("history-expand-line", history_expand_line, -1); |
429 | rl_add_defun ("magic-space", tcsh_magic_space, -1); | |
cce855bc JA |
430 | #endif |
431 | ||
3185942a JA |
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); | |
436 | ||
d166f048 | 437 | #ifdef ALIAS |
28ef6c31 | 438 | rl_add_defun ("alias-expand-line", alias_expand_line, -1); |
bc4cd23c | 439 | # ifdef BANG_HISTORY |
28ef6c31 | 440 | rl_add_defun ("history-and-alias-expand-line", history_and_alias_expand_line, -1); |
bc4cd23c | 441 | # endif |
d166f048 JA |
442 | #endif |
443 | ||
726f6388 JA |
444 | /* Backwards compatibility. */ |
445 | rl_add_defun ("insert-last-argument", rl_yank_last_arg, -1); | |
446 | ||
28ef6c31 JA |
447 | rl_add_defun ("operate-and-get-next", operate_and_get_next, -1); |
448 | rl_add_defun ("display-shell-version", display_shell_version, -1); | |
7117c2d2 | 449 | rl_add_defun ("edit-and-execute-command", emacs_edit_and_execute_command, -1); |
28ef6c31 JA |
450 | |
451 | #if defined (BRACE_COMPLETION) | |
452 | rl_add_defun ("complete-into-braces", bash_brace_completion, -1); | |
453 | #endif | |
454 | ||
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); | |
7117c2d2 | 466 | rl_add_defun ("glob-complete-word", bash_glob_complete_word, -1); |
28ef6c31 JA |
467 | rl_add_defun ("glob-expand-word", bash_glob_expand_word, -1); |
468 | rl_add_defun ("glob-list-expansions", bash_glob_list_expansions, -1); | |
469 | #endif | |
470 | ||
471 | rl_add_defun ("dynamic-complete-history", dynamic_complete_history, -1); | |
3185942a | 472 | rl_add_defun ("dabbrev-expand", bash_dabbrev_expand, -1); |
726f6388 | 473 | |
28ef6c31 JA |
474 | /* Bind defaults before binding our custom shell keybindings. */ |
475 | if (RL_ISSTATE(RL_STATE_INITIALIZED) == 0) | |
476 | rl_initialize (); | |
477 | ||
478 | /* Bind up our special shell functions. */ | |
b80f6443 | 479 | rl_bind_key_if_unbound_in_map (CTRL('E'), shell_expand_line, emacs_meta_keymap); |
28ef6c31 | 480 | |
28ef6c31 | 481 | #ifdef BANG_HISTORY |
b80f6443 | 482 | rl_bind_key_if_unbound_in_map ('^', history_expand_line, emacs_meta_keymap); |
28ef6c31 JA |
483 | #endif |
484 | ||
b80f6443 JA |
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); | |
726f6388 JA |
487 | |
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. */ | |
b80f6443 JA |
491 | kseq[0] = CTRL('J'); |
492 | kseq[1] = '\0'; | |
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); | |
496 | kseq[0] = CTRL('M'); | |
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); | |
726f6388 JA |
500 | #if defined (VI_MODE) |
501 | rl_unbind_key_in_map (CTRL('E'), vi_movement_keymap); | |
502 | #endif | |
ccc6cda3 | 503 | |
726f6388 | 504 | #if defined (BRACE_COMPLETION) |
b80f6443 | 505 | rl_bind_key_if_unbound_in_map ('{', bash_brace_completion, emacs_meta_keymap); /*}*/ |
726f6388 JA |
506 | #endif /* BRACE_COMPLETION */ |
507 | ||
508 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
b80f6443 JA |
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); | |
28ef6c31 | 511 | |
b80f6443 JA |
512 | /* Have to jump through hoops here because there is a default binding for |
513 | M-~ (rl_tilde_expand) */ | |
514 | kseq[0] = '~'; | |
515 | kseq[1] = '\0'; | |
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); | |
28ef6c31 | 519 | |
b80f6443 | 520 | rl_bind_key_if_unbound_in_map ('~', bash_possible_username_completions, emacs_ctlx_keymap); |
28ef6c31 | 521 | |
b80f6443 JA |
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); | |
28ef6c31 | 524 | |
b80f6443 JA |
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); | |
28ef6c31 | 527 | |
b80f6443 JA |
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); | |
530 | ||
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); | |
726f6388 JA |
534 | |
535 | #endif /* SPECIFIC_COMPLETION_FUNCTIONS */ | |
536 | ||
95732b49 JA |
537 | kseq[0] = TAB; |
538 | kseq[1] = '\0'; | |
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); | |
726f6388 JA |
542 | |
543 | /* Tell the completer that we want a crack first. */ | |
28ef6c31 | 544 | rl_attempted_completion_function = attempt_shell_completion; |
726f6388 JA |
545 | |
546 | /* Tell the completer that we might want to follow symbolic links or | |
547 | do other expansion on directory names. */ | |
16b2d7f4 | 548 | set_directory_hook (); |
726f6388 | 549 | |
0001803f CR |
550 | rl_filename_rewrite_hook = bash_filename_rewrite_hook; |
551 | ||
ac50fbac CR |
552 | rl_filename_stat_hook = bash_filename_stat_hook; |
553 | ||
726f6388 | 554 | /* Tell the filename completer we want a chance to ignore some names. */ |
28ef6c31 | 555 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 | 556 | |
7117c2d2 | 557 | /* Bind C-xC-e to invoke emacs and run result as commands. */ |
b80f6443 | 558 | rl_bind_key_if_unbound_in_map (CTRL ('E'), emacs_edit_and_execute_command, emacs_ctlx_keymap); |
726f6388 | 559 | #if defined (VI_MODE) |
b80f6443 | 560 | rl_bind_key_if_unbound_in_map ('v', vi_edit_and_execute_command, vi_movement_keymap); |
ccc6cda3 | 561 | # if defined (ALIAS) |
b80f6443 | 562 | rl_bind_key_if_unbound_in_map ('@', posix_edit_macros, vi_movement_keymap); |
ccc6cda3 | 563 | # endif |
b80f6443 JA |
564 | |
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); | |
726f6388 JA |
568 | #endif |
569 | ||
570 | rl_completer_quote_characters = "'\""; | |
ccc6cda3 JA |
571 | |
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); | |
576 | ||
577 | /* characters that need to be quoted when appearing in filenames. */ | |
16b2d7f4 | 578 | rl_filename_quote_characters = default_filename_quote_characters; |
ac50fbac | 579 | set_filename_bstab (rl_filename_quote_characters); |
495aee44 | 580 | |
ccc6cda3 JA |
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; | |
726f6388 | 584 | |
7117c2d2 JA |
585 | #if 0 |
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. */ | |
726f6388 JA |
590 | if (posixly_correct) |
591 | posix_readline_initialize (1); | |
7117c2d2 | 592 | #endif |
726f6388 JA |
593 | |
594 | bash_readline_initialized = 1; | |
595 | } | |
596 | ||
3185942a JA |
597 | void |
598 | bashline_reinitialize () | |
599 | { | |
600 | bash_readline_initialized = 0; | |
601 | } | |
602 | ||
ac50fbac CR |
603 | void |
604 | bashline_set_event_hook () | |
605 | { | |
606 | rl_signal_event_hook = bash_event_hook; | |
607 | } | |
608 | ||
609 | void | |
610 | bashline_reset_event_hook () | |
611 | { | |
612 | rl_signal_event_hook = 0; | |
613 | } | |
614 | ||
726f6388 JA |
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(). */ | |
620 | void | |
3185942a | 621 | bashline_reset () |
726f6388 JA |
622 | { |
623 | tilde_initialize (); | |
624 | rl_attempted_completion_function = attempt_shell_completion; | |
28ef6c31 | 625 | rl_completion_entry_function = NULL; |
28ef6c31 | 626 | rl_ignore_some_completions_function = filename_completion_ignore; |
16b2d7f4 | 627 | rl_filename_quote_characters = default_filename_quote_characters; |
ac50fbac | 628 | set_filename_bstab (rl_filename_quote_characters); |
16b2d7f4 CR |
629 | |
630 | set_directory_hook (); | |
ac50fbac CR |
631 | rl_filename_stat_hook = bash_filename_stat_hook; |
632 | ||
633 | bashline_reset_event_hook (); | |
726f6388 JA |
634 | } |
635 | ||
636 | /* Contains the line to push into readline. */ | |
637 | static char *push_to_readline = (char *)NULL; | |
638 | ||
639 | /* Push the contents of push_to_readline into the | |
640 | readline buffer. */ | |
28ef6c31 | 641 | static int |
726f6388 JA |
642 | bash_push_line () |
643 | { | |
644 | if (push_to_readline) | |
645 | { | |
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; | |
650 | } | |
28ef6c31 | 651 | return 0; |
726f6388 JA |
652 | } |
653 | ||
654 | /* Call this to set the initial text for the next line to read | |
655 | from readline. */ | |
656 | int | |
657 | bash_re_edit (line) | |
658 | char *line; | |
659 | { | |
ccc6cda3 | 660 | FREE (push_to_readline); |
726f6388 JA |
661 | |
662 | push_to_readline = savestring (line); | |
663 | old_rl_startup_hook = rl_startup_hook; | |
28ef6c31 | 664 | rl_startup_hook = bash_push_line; |
726f6388 JA |
665 | |
666 | return (0); | |
667 | } | |
668 | ||
28ef6c31 | 669 | static int |
726f6388 JA |
670 | display_shell_version (count, c) |
671 | int count, c; | |
672 | { | |
28ef6c31 | 673 | rl_crlf (); |
ccc6cda3 | 674 | show_shell_version (0); |
726f6388 JA |
675 | putc ('\r', rl_outstream); |
676 | fflush (rl_outstream); | |
677 | rl_on_new_line (); | |
678 | rl_redisplay (); | |
28ef6c31 | 679 | return 0; |
726f6388 JA |
680 | } |
681 | ||
682 | /* **************************************************************** */ | |
683 | /* */ | |
684 | /* Readline Stuff */ | |
685 | /* */ | |
686 | /* **************************************************************** */ | |
687 | ||
688 | /* If the user requests hostname completion, then simply build a list | |
bb70624e JA |
689 | of hosts, and complete from that forever more, or at least until |
690 | HOSTFILE is unset. */ | |
726f6388 | 691 | |
bb70624e | 692 | /* THIS SHOULD BE A STRINGLIST. */ |
726f6388 JA |
693 | /* The kept list of hostnames. */ |
694 | static char **hostname_list = (char **)NULL; | |
695 | ||
696 | /* The physical size of the above list. */ | |
ccc6cda3 | 697 | static int hostname_list_size; |
726f6388 | 698 | |
ccc6cda3 JA |
699 | /* The number of hostnames in the above list. */ |
700 | static int hostname_list_length; | |
726f6388 JA |
701 | |
702 | /* Whether or not HOSTNAME_LIST has been initialized. */ | |
703 | int hostname_list_initialized = 0; | |
704 | ||
726f6388 JA |
705 | /* Initialize the hostname completion table. */ |
706 | static void | |
707 | initialize_hostname_list () | |
708 | { | |
709 | char *temp; | |
710 | ||
711 | temp = get_string_value ("HOSTFILE"); | |
ccc6cda3 | 712 | if (temp == 0) |
726f6388 | 713 | temp = get_string_value ("hostname_completion_file"); |
ccc6cda3 JA |
714 | if (temp == 0) |
715 | temp = DEFAULT_HOSTS_FILE; | |
726f6388 JA |
716 | |
717 | snarf_hosts_from_file (temp); | |
726f6388 JA |
718 | |
719 | if (hostname_list) | |
720 | hostname_list_initialized++; | |
721 | } | |
722 | ||
723 | /* Add NAME to the list of hosts. */ | |
724 | static void | |
725 | add_host_name (name) | |
726 | char *name; | |
727 | { | |
728 | if (hostname_list_length + 2 > hostname_list_size) | |
729 | { | |
ccc6cda3 | 730 | hostname_list_size = (hostname_list_size + 32) - (hostname_list_size % 32); |
7117c2d2 | 731 | hostname_list = strvec_resize (hostname_list, hostname_list_size); |
726f6388 JA |
732 | } |
733 | ||
ccc6cda3 JA |
734 | hostname_list[hostname_list_length++] = savestring (name); |
735 | hostname_list[hostname_list_length] = (char *)NULL; | |
726f6388 JA |
736 | } |
737 | ||
738 | #define cr_whitespace(c) ((c) == '\r' || (c) == '\n' || whitespace(c)) | |
739 | ||
740 | static void | |
741 | snarf_hosts_from_file (filename) | |
742 | char *filename; | |
743 | { | |
ccc6cda3 | 744 | FILE *file; |
726f6388 JA |
745 | char *temp, buffer[256], name[256]; |
746 | register int i, start; | |
747 | ||
ccc6cda3 JA |
748 | file = fopen (filename, "r"); |
749 | if (file == 0) | |
726f6388 JA |
750 | return; |
751 | ||
752 | while (temp = fgets (buffer, 255, file)) | |
753 | { | |
754 | /* Skip to first character. */ | |
ccc6cda3 JA |
755 | for (i = 0; buffer[i] && cr_whitespace (buffer[i]); i++) |
756 | ; | |
726f6388 | 757 | |
ccc6cda3 JA |
758 | /* If comment or blank line, ignore. */ |
759 | if (buffer[i] == '\0' || buffer[i] == '#') | |
726f6388 JA |
760 | continue; |
761 | ||
762 | /* If `preprocessor' directive, do the include. */ | |
ccc6cda3 | 763 | if (strncmp (buffer + i, "$include ", 9) == 0) |
726f6388 | 764 | { |
ccc6cda3 | 765 | char *incfile, *t; |
726f6388 JA |
766 | |
767 | /* Find start of filename. */ | |
ccc6cda3 JA |
768 | for (incfile = buffer + i + 9; *incfile && whitespace (*incfile); incfile++) |
769 | ; | |
726f6388 JA |
770 | |
771 | /* Find end of filename. */ | |
ccc6cda3 JA |
772 | for (t = incfile; *t && cr_whitespace (*t) == 0; t++) |
773 | ; | |
726f6388 JA |
774 | |
775 | *t = '\0'; | |
776 | ||
ccc6cda3 | 777 | snarf_hosts_from_file (incfile); |
726f6388 JA |
778 | continue; |
779 | } | |
780 | ||
ccc6cda3 | 781 | /* Skip internet address if present. */ |
f73dda09 | 782 | if (DIGIT (buffer[i])) |
ccc6cda3 | 783 | for (; buffer[i] && cr_whitespace (buffer[i]) == 0; i++); |
726f6388 JA |
784 | |
785 | /* Gobble up names. Each name is separated with whitespace. */ | |
ccc6cda3 | 786 | while (buffer[i]) |
726f6388 | 787 | { |
ccc6cda3 JA |
788 | for (; cr_whitespace (buffer[i]); i++) |
789 | ; | |
790 | if (buffer[i] == '\0' || buffer[i] == '#') | |
791 | break; | |
792 | ||
793 | /* Isolate the current word. */ | |
794 | for (start = i; buffer[i] && cr_whitespace (buffer[i]) == 0; i++) | |
795 | ; | |
796 | if (i == start) | |
726f6388 JA |
797 | continue; |
798 | strncpy (name, buffer + start, i - start); | |
799 | name[i - start] = '\0'; | |
800 | add_host_name (name); | |
801 | } | |
802 | } | |
803 | fclose (file); | |
804 | } | |
805 | ||
bb70624e JA |
806 | /* Return the hostname list. */ |
807 | char ** | |
808 | get_hostname_list () | |
809 | { | |
810 | if (hostname_list_initialized == 0) | |
811 | initialize_hostname_list (); | |
812 | return (hostname_list); | |
813 | } | |
814 | ||
815 | void | |
816 | clear_hostname_list () | |
817 | { | |
818 | register int i; | |
819 | ||
820 | if (hostname_list_initialized == 0) | |
821 | return; | |
822 | for (i = 0; i < hostname_list_length; i++) | |
823 | free (hostname_list[i]); | |
0001803f | 824 | hostname_list_length = hostname_list_initialized = 0; |
bb70624e JA |
825 | } |
826 | ||
726f6388 | 827 | /* Return a NULL terminated list of hostnames which begin with TEXT. |
ac50fbac | 828 | Initialize the hostname list the first time if necessary. |
726f6388 JA |
829 | The array is malloc ()'ed, but not the individual strings. */ |
830 | static char ** | |
831 | hostnames_matching (text) | |
832 | char *text; | |
833 | { | |
ccc6cda3 JA |
834 | register int i, len, nmatch, rsize; |
835 | char **result; | |
726f6388 | 836 | |
ccc6cda3 JA |
837 | if (hostname_list_initialized == 0) |
838 | initialize_hostname_list (); | |
726f6388 | 839 | |
ccc6cda3 JA |
840 | if (hostname_list_initialized == 0) |
841 | return ((char **)NULL); | |
726f6388 JA |
842 | |
843 | /* Special case. If TEXT consists of nothing, then the whole list is | |
844 | what is desired. */ | |
ccc6cda3 | 845 | if (*text == '\0') |
726f6388 | 846 | { |
7117c2d2 | 847 | result = strvec_create (1 + hostname_list_length); |
726f6388 JA |
848 | for (i = 0; i < hostname_list_length; i++) |
849 | result[i] = hostname_list[i]; | |
850 | result[i] = (char *)NULL; | |
851 | return (result); | |
852 | } | |
853 | ||
854 | /* Scan until found, or failure. */ | |
ccc6cda3 JA |
855 | len = strlen (text); |
856 | result = (char **)NULL; | |
857 | for (i = nmatch = rsize = 0; i < hostname_list_length; i++) | |
726f6388 | 858 | { |
ccc6cda3 | 859 | if (STREQN (text, hostname_list[i], len) == 0) |
28ef6c31 | 860 | continue; |
726f6388 | 861 | |
ccc6cda3 | 862 | /* OK, it matches. Add it to the list. */ |
bc4cd23c | 863 | if (nmatch >= (rsize - 1)) |
726f6388 | 864 | { |
ccc6cda3 | 865 | rsize = (rsize + 16) - (rsize % 16); |
7117c2d2 | 866 | result = strvec_resize (result, rsize); |
726f6388 JA |
867 | } |
868 | ||
ccc6cda3 | 869 | result[nmatch++] = hostname_list[i]; |
726f6388 | 870 | } |
ccc6cda3 JA |
871 | if (nmatch) |
872 | result[nmatch] = (char *)NULL; | |
873 | return (result); | |
726f6388 JA |
874 | } |
875 | ||
ccc6cda3 | 876 | /* The equivalent of the Korn shell C-o operate-and-get-next-history-line |
726f6388 | 877 | editing command. */ |
ccc6cda3 | 878 | static int saved_history_line_to_use = -1; |
ac50fbac CR |
879 | static int last_saved_history_line = -1; |
880 | ||
881 | #define HISTORY_FULL() (history_is_stifled () && history_length >= history_max_entries) | |
726f6388 | 882 | |
28ef6c31 | 883 | static int |
726f6388 JA |
884 | set_saved_history () |
885 | { | |
ac50fbac CR |
886 | /* XXX - compensate for assumption that history was `shuffled' if it was |
887 | actually not. */ | |
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++; | |
892 | ||
ccc6cda3 | 893 | if (saved_history_line_to_use >= 0) |
ac50fbac CR |
894 | { |
895 | rl_get_previous_history (history_length - saved_history_line_to_use, 0); | |
896 | last_saved_history_line = saved_history_line_to_use; | |
897 | } | |
ccc6cda3 | 898 | saved_history_line_to_use = -1; |
726f6388 | 899 | rl_startup_hook = old_rl_startup_hook; |
f73dda09 | 900 | return (0); |
ccc6cda3 | 901 | } |
726f6388 | 902 | |
28ef6c31 | 903 | static int |
726f6388 JA |
904 | operate_and_get_next (count, c) |
905 | int count, c; | |
906 | { | |
907 | int where; | |
908 | ||
909 | /* Accept the current line. */ | |
b72432fd | 910 | rl_newline (1, c); |
726f6388 JA |
911 | |
912 | /* Find the current line, and find the next line to use. */ | |
913 | where = where_history (); | |
914 | ||
ac50fbac | 915 | if (HISTORY_FULL () || (where >= history_length - 1)) |
726f6388 JA |
916 | saved_history_line_to_use = where; |
917 | else | |
918 | saved_history_line_to_use = where + 1; | |
919 | ||
920 | old_rl_startup_hook = rl_startup_hook; | |
28ef6c31 JA |
921 | rl_startup_hook = set_saved_history; |
922 | ||
923 | return 0; | |
726f6388 JA |
924 | } |
925 | ||
726f6388 JA |
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. */ | |
929 | ||
b80f6443 JA |
930 | #define VI_EDIT_COMMAND "fc -e \"${VISUAL:-${EDITOR:-vi}}\"" |
931 | #define EMACS_EDIT_COMMAND "fc -e \"${VISUAL:-${EDITOR:-emacs}}\"" | |
95732b49 | 932 | #define POSIX_VI_EDIT_COMMAND "fc -e vi" |
726f6388 | 933 | |
28ef6c31 | 934 | static int |
7117c2d2 JA |
935 | edit_and_execute_command (count, c, editing_mode, edit_command) |
936 | int count, c, editing_mode; | |
937 | char *edit_command; | |
726f6388 | 938 | { |
3185942a | 939 | char *command, *metaval; |
495aee44 CR |
940 | int r, rrs, metaflag; |
941 | sh_parser_state_t ps; | |
f73dda09 JA |
942 | |
943 | rrs = rl_readline_state; | |
495aee44 | 944 | saved_command_line_count = current_command_line_count; |
726f6388 JA |
945 | |
946 | /* Accept the current line. */ | |
b72432fd | 947 | rl_newline (1, c); |
726f6388 JA |
948 | |
949 | if (rl_explicit_arg) | |
950 | { | |
7117c2d2 JA |
951 | command = (char *)xmalloc (strlen (edit_command) + 8); |
952 | sprintf (command, "%s %d", edit_command, count); | |
726f6388 JA |
953 | } |
954 | else | |
955 | { | |
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'). */ | |
495aee44 CR |
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 */ | |
726f6388 | 962 | using_history (); |
ac50fbac | 963 | current_command_line_count++; /* for rl_newline above */ |
d166f048 | 964 | bash_add_history (rl_line_buffer); |
ac50fbac | 965 | current_command_line_count = 0; /* for dummy history entry */ |
d166f048 | 966 | bash_add_history (""); |
726f6388 JA |
967 | history_lines_this_session++; |
968 | using_history (); | |
7117c2d2 | 969 | command = savestring (edit_command); |
726f6388 | 970 | } |
7117c2d2 | 971 | |
3185942a JA |
972 | metaval = rl_variable_value ("input-meta"); |
973 | metaflag = RL_BOOLEAN_VARIABLE_VALUE (metaval); | |
974 | ||
7117c2d2 JA |
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 | |
977 | yet. */ | |
3185942a JA |
978 | if (rl_deprep_term_function) |
979 | (*rl_deprep_term_function) (); | |
495aee44 | 980 | save_parser_state (&ps); |
7117c2d2 | 981 | r = parse_and_execute (command, (editing_mode == VI_EDITING_MODE) ? "v" : "C-xC-e", SEVAL_NOHIST); |
495aee44 | 982 | restore_parser_state (&ps); |
3185942a JA |
983 | if (rl_prep_term_function) |
984 | (*rl_prep_term_function) (metaflag); | |
f73dda09 | 985 | |
495aee44 | 986 | current_command_line_count = saved_command_line_count; |
f73dda09 JA |
987 | |
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. */ | |
ccc6cda3 | 991 | rl_line_buffer[0] = '\0'; /* XXX */ |
f73dda09 JA |
992 | rl_point = rl_end = 0; |
993 | rl_done = 0; | |
994 | rl_readline_state = rrs; | |
995 | ||
996 | rl_forced_update_display (); | |
28ef6c31 JA |
997 | |
998 | return r; | |
726f6388 | 999 | } |
7117c2d2 JA |
1000 | |
1001 | #if defined (VI_MODE) | |
1002 | static int | |
1003 | vi_edit_and_execute_command (count, c) | |
1004 | int count, c; | |
1005 | { | |
95732b49 JA |
1006 | if (posixly_correct) |
1007 | return (edit_and_execute_command (count, c, VI_EDITING_MODE, POSIX_VI_EDIT_COMMAND)); | |
1008 | else | |
1009 | return (edit_and_execute_command (count, c, VI_EDITING_MODE, VI_EDIT_COMMAND)); | |
7117c2d2 | 1010 | } |
726f6388 JA |
1011 | #endif /* VI_MODE */ |
1012 | ||
7117c2d2 JA |
1013 | static int |
1014 | emacs_edit_and_execute_command (count, c) | |
1015 | int count, c; | |
1016 | { | |
1017 | return (edit_and_execute_command (count, c, EMACS_EDITING_MODE, EMACS_EDIT_COMMAND)); | |
1018 | } | |
1019 | ||
ccc6cda3 JA |
1020 | #if defined (ALIAS) |
1021 | static int | |
1022 | posix_edit_macros (count, key) | |
1023 | int count, key; | |
1024 | { | |
1025 | int c; | |
1026 | char alias_name[3], *alias_value, *macro; | |
1027 | ||
1028 | c = rl_read_key (); | |
1029 | alias_name[0] = '_'; | |
1030 | alias_name[1] = c; | |
1031 | alias_name[2] = '\0'; | |
1032 | ||
1033 | alias_value = get_alias_value (alias_name); | |
1034 | if (alias_value && *alias_value) | |
1035 | { | |
1036 | macro = savestring (alias_value); | |
1037 | rl_push_macro_input (macro); | |
1038 | } | |
1039 | return 0; | |
1040 | } | |
1041 | #endif | |
1042 | ||
3185942a JA |
1043 | /* Bindable commands that move `shell-words': that is, sequences of |
1044 | non-unquoted-metacharacters. */ | |
1045 | ||
1046 | #define WORDDELIM(c) (shellmeta(c) || shellblank(c)) | |
1047 | ||
1048 | static int | |
1049 | bash_forward_shellword (count, key) | |
1050 | int count, key; | |
1051 | { | |
1052 | size_t slen; | |
1053 | int sindex, c, p; | |
1054 | DECLARE_MBSTATE; | |
1055 | ||
1056 | if (count < 0) | |
1057 | return (bash_backward_shellword (-count, key)); | |
1058 | ||
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. */ | |
1063 | ||
1064 | p = rl_point; | |
1065 | slen = rl_end; | |
1066 | ||
1067 | while (count) | |
1068 | { | |
1069 | if (p == rl_end) | |
1070 | { | |
1071 | rl_point = rl_end; | |
1072 | return 0; | |
1073 | } | |
1074 | ||
495aee44 CR |
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 | |
1078 | differentiate. */ | |
1079 | if (char_is_quoted (rl_line_buffer, p) && p > 0 && rl_line_buffer[p-1] != '\\') | |
1080 | { | |
1081 | do | |
1082 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1083 | while (p < rl_end && char_is_quoted (rl_line_buffer, p)); | |
1084 | count--; | |
1085 | continue; | |
1086 | } | |
1087 | ||
1088 | /* Rest of code assumes we are not in a quoted string. */ | |
3185942a JA |
1089 | /* Move forward until we hit a non-metacharacter. */ |
1090 | while (p < rl_end && (c = rl_line_buffer[p]) && WORDDELIM (c)) | |
1091 | { | |
1092 | switch (c) | |
1093 | { | |
1094 | default: | |
1095 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1096 | continue; /* straight back to loop, don't increment p */ | |
1097 | case '\\': | |
1098 | if (p < rl_end && rl_line_buffer[p]) | |
1099 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1100 | break; | |
1101 | case '\'': | |
1102 | p = skip_to_delim (rl_line_buffer, ++p, "'", SD_NOJMP); | |
1103 | break; | |
1104 | case '"': | |
1105 | p = skip_to_delim (rl_line_buffer, ++p, "\"", SD_NOJMP); | |
1106 | break; | |
1107 | } | |
1108 | ||
1109 | if (p < rl_end) | |
1110 | p++; | |
1111 | } | |
1112 | ||
1113 | if (rl_line_buffer[p] == 0 || p == rl_end) | |
1114 | { | |
1115 | rl_point = rl_end; | |
1116 | rl_ding (); | |
1117 | return 0; | |
1118 | } | |
1119 | ||
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) | |
1122 | { | |
1123 | switch (c) | |
1124 | { | |
1125 | default: | |
1126 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1127 | continue; /* straight back to loop, don't increment p */ | |
1128 | case '\\': | |
1129 | if (p < rl_end && rl_line_buffer[p]) | |
1130 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1131 | break; | |
1132 | case '\'': | |
1133 | p = skip_to_delim (rl_line_buffer, ++p, "'", SD_NOJMP); | |
1134 | break; | |
1135 | case '"': | |
1136 | p = skip_to_delim (rl_line_buffer, ++p, "\"", SD_NOJMP); | |
1137 | break; | |
1138 | } | |
1139 | ||
1140 | if (p < rl_end) | |
1141 | p++; | |
1142 | } | |
1143 | ||
1144 | if (p == rl_end || rl_line_buffer[p] == 0) | |
1145 | { | |
1146 | rl_point = rl_end; | |
1147 | return (0); | |
1148 | } | |
1149 | ||
1150 | count--; | |
1151 | } | |
1152 | ||
1153 | rl_point = p; | |
1154 | return (0); | |
1155 | } | |
1156 | ||
1157 | static int | |
1158 | bash_backward_shellword (count, key) | |
1159 | int count, key; | |
1160 | { | |
1161 | size_t slen; | |
1162 | int sindex, c, p; | |
1163 | DECLARE_MBSTATE; | |
1164 | ||
1165 | if (count < 0) | |
1166 | return (bash_forward_shellword (-count, key)); | |
1167 | ||
1168 | p = rl_point; | |
1169 | slen = rl_end; | |
1170 | ||
1171 | while (count) | |
1172 | { | |
1173 | if (p == 0) | |
1174 | { | |
1175 | rl_point = 0; | |
1176 | return 0; | |
1177 | } | |
1178 | ||
1179 | /* Move backward until we hit a non-metacharacter. */ | |
1180 | while (p > 0) | |
1181 | { | |
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); | |
1185 | break; | |
1186 | } | |
1187 | ||
1188 | if (p == 0) | |
1189 | { | |
1190 | rl_point = 0; | |
1191 | return 0; | |
1192 | } | |
1193 | ||
1194 | /* Now move backward until we hit a metacharacter or BOL. */ | |
1195 | while (p > 0) | |
1196 | { | |
1197 | c = rl_line_buffer[p]; | |
1198 | if (WORDDELIM (c) && char_is_quoted (rl_line_buffer, p) == 0) | |
1199 | break; | |
1200 | BACKUP_CHAR (rl_line_buffer, slen, p); | |
1201 | } | |
1202 | ||
1203 | count--; | |
1204 | } | |
1205 | ||
1206 | rl_point = p; | |
1207 | return 0; | |
1208 | } | |
1209 | ||
1210 | static int | |
1211 | bash_kill_shellword (count, key) | |
1212 | int count, key; | |
1213 | { | |
1214 | int p; | |
1215 | ||
1216 | if (count < 0) | |
1217 | return (bash_backward_kill_shellword (-count, key)); | |
1218 | ||
1219 | p = rl_point; | |
1220 | bash_forward_shellword (count, key); | |
1221 | ||
1222 | if (rl_point != p) | |
1223 | rl_kill_text (p, rl_point); | |
1224 | ||
1225 | rl_point = p; | |
1226 | if (rl_editing_mode == 1) /* 1 == emacs_mode */ | |
1227 | rl_mark = rl_point; | |
1228 | ||
1229 | return 0; | |
1230 | } | |
1231 | ||
1232 | static int | |
1233 | bash_backward_kill_shellword (count, key) | |
1234 | int count, key; | |
1235 | { | |
1236 | int p; | |
1237 | ||
1238 | if (count < 0) | |
1239 | return (bash_kill_shellword (-count, key)); | |
1240 | ||
1241 | p = rl_point; | |
1242 | bash_backward_shellword (count, key); | |
1243 | ||
1244 | if (rl_point != p) | |
1245 | rl_kill_text (p, rl_point); | |
1246 | ||
1247 | if (rl_editing_mode == 1) /* 1 == emacs_mode */ | |
1248 | rl_mark = rl_point; | |
1249 | ||
1250 | return 0; | |
1251 | } | |
1252 | ||
1253 | ||
726f6388 JA |
1254 | /* **************************************************************** */ |
1255 | /* */ | |
1256 | /* How To Do Shell Completion */ | |
1257 | /* */ | |
1258 | /* **************************************************************** */ | |
1259 | ||
bb70624e | 1260 | #define COMMAND_SEPARATORS ";|&{(`" |
b80f6443 | 1261 | /* )} */ |
ac50fbac CR |
1262 | #define COMMAND_SEPARATORS_PLUS_WS ";|&{(` \t" |
1263 | /* )} */ | |
bb70624e | 1264 | |
ac50fbac CR |
1265 | /* check for redirections and other character combinations that are not |
1266 | command separators */ | |
bb70624e JA |
1267 | static int |
1268 | check_redir (ti) | |
1269 | int ti; | |
1270 | { | |
1271 | register int this_char, prev_char; | |
1272 | ||
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]; | |
1277 | ||
1278 | if ((this_char == '&' && (prev_char == '<' || prev_char == '>')) || | |
1279 | (this_char == '|' && prev_char == '>')) | |
1280 | return (1); | |
ac50fbac CR |
1281 | else if (this_char == '{' && prev_char == '$') /*}*/ |
1282 | return (1); | |
1283 | #if 0 /* Not yet */ | |
1284 | else if (this_char == '(' && prev_char == '$') /*)*/ | |
1285 | return (1); | |
1286 | else if (this_char == '(' && prev_char == '<') /*)*/ | |
1287 | return (1); | |
1288 | #if defined (EXTENDED_GLOB) | |
1289 | else if (extended_glob && this_char == '(' && prev_char == '!') /*)*/ | |
1290 | return (1); | |
1291 | #endif | |
1292 | #endif | |
1293 | else if (char_is_quoted (rl_line_buffer, ti)) | |
bb70624e JA |
1294 | return (1); |
1295 | return (0); | |
1296 | } | |
1297 | ||
1298 | #if defined (PROGRAMMABLE_COMPLETION) | |
f73dda09 JA |
1299 | /* |
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. | |
1303 | */ | |
bb70624e JA |
1304 | static int |
1305 | find_cmd_start (start) | |
1306 | int start; | |
1307 | { | |
1308 | register int s, os; | |
1309 | ||
1310 | os = 0; | |
ac50fbac CR |
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) && | |
bb70624e JA |
1315 | rl_line_buffer[s]) |
1316 | os = s+1; | |
1317 | return os; | |
1318 | } | |
1319 | ||
1320 | static int | |
1321 | find_cmd_end (end) | |
1322 | int end; | |
1323 | { | |
1324 | register int e; | |
1325 | ||
3185942a | 1326 | e = skip_to_delim (rl_line_buffer, end, COMMAND_SEPARATORS, SD_NOJMP); |
bb70624e JA |
1327 | return e; |
1328 | } | |
1329 | ||
1330 | static char * | |
ac50fbac | 1331 | find_cmd_name (start, sp, ep) |
bb70624e | 1332 | int start; |
ac50fbac | 1333 | int *sp, *ep; |
bb70624e JA |
1334 | { |
1335 | char *name; | |
1336 | register int s, e; | |
1337 | ||
1338 | for (s = start; whitespace (rl_line_buffer[s]); s++) | |
1339 | ; | |
1340 | ||
1341 | /* skip until a shell break character */ | |
3185942a | 1342 | e = skip_to_delim (rl_line_buffer, s, "()<>;&| \t\n", SD_NOJMP); |
bb70624e JA |
1343 | |
1344 | name = substring (rl_line_buffer, s, e); | |
1345 | ||
ac50fbac CR |
1346 | if (sp) |
1347 | *sp = s; | |
1348 | if (ep) | |
1349 | *ep = e; | |
1350 | ||
bb70624e JA |
1351 | return (name); |
1352 | } | |
1353 | ||
1354 | static char * | |
1355 | prog_complete_return (text, matchnum) | |
f73dda09 | 1356 | const char *text; |
bb70624e JA |
1357 | int matchnum; |
1358 | { | |
1359 | static int ind; | |
1360 | ||
1361 | if (matchnum == 0) | |
1362 | ind = 0; | |
1363 | ||
1364 | if (prog_complete_matches == 0 || prog_complete_matches[ind] == 0) | |
1365 | return (char *)NULL; | |
1366 | return (prog_complete_matches[ind++]); | |
1367 | } | |
1368 | ||
1369 | #endif /* PROGRAMMABLE_COMPLETION */ | |
1370 | ||
726f6388 JA |
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. */ | |
1373 | static char ** | |
1374 | attempt_shell_completion (text, start, end) | |
28ef6c31 | 1375 | const char *text; |
726f6388 JA |
1376 | int start, end; |
1377 | { | |
0628567a | 1378 | int in_command_position, ti, saveti, qc, dflags; |
ccc6cda3 | 1379 | char **matches, *command_separator_chars; |
ac50fbac CR |
1380 | #if defined (PROGRAMMABLE_COMPLETION) |
1381 | int have_progcomps, was_assignment; | |
1382 | #endif | |
726f6388 | 1383 | |
bb70624e | 1384 | command_separator_chars = COMMAND_SEPARATORS; |
ccc6cda3 | 1385 | matches = (char **)NULL; |
28ef6c31 | 1386 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 | 1387 | |
16b2d7f4 | 1388 | rl_filename_quote_characters = default_filename_quote_characters; |
ac50fbac | 1389 | set_filename_bstab (rl_filename_quote_characters); |
16b2d7f4 | 1390 | set_directory_hook (); |
ac50fbac | 1391 | rl_filename_stat_hook = bash_filename_stat_hook; |
16b2d7f4 | 1392 | |
726f6388 JA |
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. */ | |
1397 | ti = start - 1; | |
bb70624e | 1398 | saveti = qc = -1; |
726f6388 JA |
1399 | |
1400 | while ((ti > -1) && (whitespace (rl_line_buffer[ti]))) | |
1401 | ti--; | |
1402 | ||
bb70624e JA |
1403 | #if 1 |
1404 | /* If this is an open quote, maybe we're trying to complete a quoted | |
1405 | command name. */ | |
b80f6443 | 1406 | if (ti >= 0 && (rl_line_buffer[ti] == '"' || rl_line_buffer[ti] == '\'')) |
bb70624e JA |
1407 | { |
1408 | qc = rl_line_buffer[ti]; | |
1409 | saveti = ti--; | |
1410 | while (ti > -1 && (whitespace (rl_line_buffer[ti]))) | |
28ef6c31 | 1411 | ti--; |
bb70624e JA |
1412 | } |
1413 | #endif | |
1414 | ||
726f6388 JA |
1415 | in_command_position = 0; |
1416 | if (ti < 0) | |
1417 | { | |
1418 | /* Only do command completion at the start of a line when we | |
28ef6c31 | 1419 | are prompting at the top level. */ |
726f6388 JA |
1420 | if (current_prompt_string == ps1_prompt) |
1421 | in_command_position++; | |
ac50fbac CR |
1422 | else if (parser_in_command_position ()) |
1423 | in_command_position++; | |
726f6388 JA |
1424 | } |
1425 | else if (member (rl_line_buffer[ti], command_separator_chars)) | |
1426 | { | |
726f6388 JA |
1427 | in_command_position++; |
1428 | ||
bb70624e | 1429 | if (check_redir (ti) == 1) |
28ef6c31 | 1430 | in_command_position = 0; |
726f6388 JA |
1431 | } |
1432 | else | |
1433 | { | |
1434 | /* This still could be in command position. It is possible | |
1435 | that all of the previous words on the line are variable | |
1436 | assignments. */ | |
1437 | } | |
1438 | ||
d166f048 JA |
1439 | /* Check that we haven't incorrectly flagged a closed command substitution |
1440 | as indicating we're in a command position. */ | |
e8ce775d | 1441 | if (in_command_position && ti >= 0 && rl_line_buffer[ti] == '`' && |
bb70624e | 1442 | *text != '`' && unclosed_pair (rl_line_buffer, end, "`") == 0) |
d166f048 JA |
1443 | in_command_position = 0; |
1444 | ||
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 | |
0001803f CR |
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 != '\'' && | |
bb70624e JA |
1451 | (in_command_position || (unclosed_pair (rl_line_buffer, start, "`") && |
1452 | unclosed_pair (rl_line_buffer, end, "`")))) | |
28ef6c31 | 1453 | matches = rl_completion_matches (text, command_subst_completion_function); |
726f6388 | 1454 | |
bb70624e JA |
1455 | #if defined (PROGRAMMABLE_COMPLETION) |
1456 | /* Attempt programmable completion. */ | |
ac50fbac | 1457 | have_progcomps = prog_completion_enabled && (progcomp_size () > 0); |
3185942a | 1458 | if (matches == 0 && (in_command_position == 0 || text[0] == '\0') && |
3185942a | 1459 | current_prompt_string == ps1_prompt) |
bb70624e | 1460 | { |
ac50fbac | 1461 | int s, e, s1, e1, os, foundcs; |
bb70624e JA |
1462 | char *n; |
1463 | ||
1464 | /* XXX - don't free the members */ | |
1465 | if (prog_complete_matches) | |
1466 | free (prog_complete_matches); | |
1467 | prog_complete_matches = (char **)NULL; | |
1468 | ||
ac50fbac CR |
1469 | os = start; |
1470 | n = 0; | |
2b3ca7e0 | 1471 | was_assignment = 0; |
ac50fbac | 1472 | s = find_cmd_start (os); |
bb70624e | 1473 | e = find_cmd_end (end); |
ac50fbac CR |
1474 | do |
1475 | { | |
2b3ca7e0 CR |
1476 | /* Don't read past the end of rl_line_buffer */ |
1477 | if (s > rl_end) | |
1478 | { | |
1479 | s1 = s = e1; | |
1480 | break; | |
1481 | } | |
1482 | /* Or past point if point is within an assignment statement */ | |
1483 | else if (was_assignment && s > rl_point) | |
1484 | { | |
1485 | s1 = s = e1; | |
1486 | break; | |
1487 | } | |
ac50fbac CR |
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. */ | |
1492 | FREE (n); | |
1493 | n = find_cmd_name (s, &s1, &e1); | |
1494 | s = e1 + 1; | |
1495 | } | |
1496 | while (was_assignment = assignment (n, 0)); | |
1497 | s = s1; /* reset to index where name begins */ | |
1498 | ||
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 */ | |
1508 | foundcs = 0; | |
1509 | else if (start == end && start == s1 && e != 0 && e1 > end) /* beginning of command name, leading whitespace */ | |
1510 | foundcs = 0; | |
1511 | else if (e == 0 && e == s && text[0] == '\0' && have_progcomps) /* beginning of empty line */ | |
3185942a | 1512 | prog_complete_matches = programmable_completions ("_EmptycmD_", text, s, e, &foundcs); |
ac50fbac CR |
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) | |
1516 | { | |
1517 | /* not assignment statement, but still want to perform command | |
1518 | completion if we are composing command word. */ | |
1519 | foundcs = 0; | |
1520 | in_command_position = s == start && STREQ (n, text); /* XXX */ | |
1521 | } | |
1522 | else if (e > s && was_assignment == 0 && have_progcomps) | |
1523 | { | |
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 */ | |
1527 | } | |
1528 | else if (s >= e && n[0] == '\0' && text[0] == '\0' && start > 0) | |
1529 | { | |
1530 | foundcs = 0; /* empty command name following assignments */ | |
1531 | in_command_position = was_assignment; | |
1532 | } | |
1533 | else if (s == start && e == end && STREQ (n, text) && start > 0) | |
1534 | { | |
1535 | foundcs = 0; /* partial command name following assignments */ | |
1536 | in_command_position = 1; | |
1537 | } | |
f73dda09 JA |
1538 | else |
1539 | foundcs = 0; | |
bb70624e JA |
1540 | FREE (n); |
1541 | /* XXX - if we found a COMPSPEC for the command, just return whatever | |
1542 | the programmable completion code returns, and disable the default | |
28ef6c31 | 1543 | filename completion that readline will do unless the COPT_DEFAULT |
3185942a JA |
1544 | option has been set with the `-o default' option to complete or |
1545 | compopt. */ | |
bb70624e JA |
1546 | if (foundcs) |
1547 | { | |
3185942a | 1548 | pcomp_set_readline_variables (foundcs, 1); |
bb70624e JA |
1549 | /* Turn what the programmable completion code returns into what |
1550 | readline wants. I should have made compute_lcd_of_matches | |
1551 | external... */ | |
28ef6c31 JA |
1552 | matches = rl_completion_matches (text, prog_complete_return); |
1553 | if ((foundcs & COPT_DEFAULT) == 0) | |
1554 | rl_attempted_completion_over = 1; /* no default */ | |
b80f6443 JA |
1555 | if (matches || ((foundcs & COPT_BASHDEFAULT) == 0)) |
1556 | return (matches); | |
bb70624e JA |
1557 | } |
1558 | } | |
1559 | #endif | |
1560 | ||
b80f6443 | 1561 | if (matches == 0) |
0628567a JA |
1562 | { |
1563 | dflags = 0; | |
1564 | if (in_command_position) | |
1565 | dflags |= DEFCOMP_CMDPOS; | |
1566 | matches = bash_default_completion (text, start, end, qc, dflags); | |
1567 | } | |
b80f6443 JA |
1568 | |
1569 | return matches; | |
1570 | } | |
1571 | ||
1572 | char ** | |
0628567a | 1573 | bash_default_completion (text, start, end, qc, compflags) |
b80f6443 | 1574 | const char *text; |
0628567a | 1575 | int start, end, qc, compflags; |
b80f6443 | 1576 | { |
ac50fbac | 1577 | char **matches, *t; |
b80f6443 JA |
1578 | |
1579 | matches = (char **)NULL; | |
1580 | ||
bb70624e | 1581 | /* New posix-style command substitution or variable name? */ |
726f6388 | 1582 | if (!matches && *text == '$') |
bb70624e JA |
1583 | { |
1584 | if (qc != '\'' && text[1] == '(') /* ) */ | |
28ef6c31 | 1585 | matches = rl_completion_matches (text, command_subst_completion_function); |
bb70624e | 1586 | else |
ac50fbac CR |
1587 | { |
1588 | matches = rl_completion_matches (text, variable_completion_function); | |
1589 | if (matches && matches[0] && matches[1] == 0) | |
1590 | { | |
1591 | t = savestring (matches[0]); | |
1592 | bash_filename_stat_hook (&t); | |
1593 | /* doesn't use test_for_directory because that performs tilde | |
1594 | expansion */ | |
1595 | if (file_isdir (t)) | |
1596 | rl_completion_append_character = '/'; | |
1597 | free (t); | |
1598 | } | |
1599 | } | |
bb70624e | 1600 | } |
726f6388 JA |
1601 | |
1602 | /* If the word starts in `~', and there is no slash in the word, then | |
1603 | try completing this word as a username. */ | |
495aee44 | 1604 | if (matches == 0 && *text == '~' && mbschr (text, '/') == 0) |
28ef6c31 | 1605 | matches = rl_completion_matches (text, rl_username_completion_function); |
726f6388 JA |
1606 | |
1607 | /* Another one. Why not? If the word starts in '@', then look through | |
1608 | the world of known hostnames for completion first. */ | |
495aee44 | 1609 | if (matches == 0 && perform_hostname_completion && *text == '@') |
28ef6c31 | 1610 | matches = rl_completion_matches (text, hostname_completion_function); |
726f6388 JA |
1611 | |
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. */ | |
0628567a | 1615 | if (matches == 0 && (compflags & DEFCOMP_CMDPOS)) |
726f6388 | 1616 | { |
0628567a JA |
1617 | /* If END == START and text[0] == 0, we are trying to complete an empty |
1618 | command word. */ | |
1619 | if (no_empty_command_completion && end == start && text[0] == '\0') | |
bb70624e JA |
1620 | { |
1621 | matches = (char **)NULL; | |
28ef6c31 | 1622 | rl_ignore_some_completions_function = bash_ignore_everything; |
bb70624e JA |
1623 | } |
1624 | else | |
1625 | { | |
b80f6443 JA |
1626 | #define CMD_IS_DIR(x) (absolute_pathname(x) == 0 && absolute_program(x) == 0 && *(x) != '~' && test_for_directory (x)) |
1627 | ||
95732b49 | 1628 | dot_in_path = 0; |
28ef6c31 | 1629 | matches = rl_completion_matches (text, command_word_completion_function); |
b80f6443 | 1630 | |
bb70624e JA |
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) | |
28ef6c31 | 1637 | rl_ignore_some_completions_function = bash_ignore_filenames; |
95732b49 JA |
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. */ | |
1643 | { | |
1644 | rl_completion_suppress_append = 1; | |
1645 | rl_filename_completion_desired = 0; | |
1646 | } | |
b80f6443 | 1647 | else if (matches[0] && matches[1] && STREQ (matches[0], matches[1]) && CMD_IS_DIR (matches[0])) |
7117c2d2 JA |
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 | |
95732b49 JA |
1651 | will distill them all down to one. We turn on |
1652 | rl_completion_suppress_append for the same reason as above. | |
7117c2d2 JA |
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. */ | |
95732b49 JA |
1656 | { |
1657 | rl_completion_suppress_append = 1; | |
1658 | rl_filename_completion_desired = 0; | |
1659 | } | |
bb70624e | 1660 | } |
726f6388 JA |
1661 | } |
1662 | ||
ccc6cda3 JA |
1663 | /* This could be a globbing pattern, so try to expand it using pathname |
1664 | expansion. */ | |
f73dda09 | 1665 | if (!matches && glob_pattern_p (text)) |
e8ce775d | 1666 | { |
28ef6c31 | 1667 | matches = rl_completion_matches (text, glob_complete_word); |
e8ce775d JA |
1668 | /* A glob expression that matches more than one filename is problematic. |
1669 | If we match more than one filename, punt. */ | |
7117c2d2 | 1670 | if (matches && matches[1] && rl_completion_type == TAB) |
e8ce775d | 1671 | { |
7117c2d2 | 1672 | strvec_dispose (matches); |
e8ce775d JA |
1673 | matches = (char **)0; |
1674 | } | |
ac50fbac CR |
1675 | else if (matches && matches[1] && rl_completion_type == '!') |
1676 | { | |
1677 | rl_completion_suppress_append = 1; | |
1678 | rl_filename_completion_desired = 0; | |
1679 | } | |
e8ce775d | 1680 | } |
ccc6cda3 | 1681 | |
726f6388 JA |
1682 | return (matches); |
1683 | } | |
1684 | ||
ac50fbac CR |
1685 | static int |
1686 | bash_command_name_stat_hook (name) | |
1687 | char **name; | |
1688 | { | |
1689 | char *cname, *result; | |
1690 | ||
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)); | |
1695 | ||
1696 | cname = *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); | |
1700 | if (result) | |
1701 | { | |
1702 | *name = result; | |
1703 | return 1; | |
1704 | } | |
1705 | return 0; | |
1706 | } | |
1707 | ||
1708 | static int | |
1709 | executable_completion (filename, searching_path) | |
1710 | const char *filename; | |
1711 | int searching_path; | |
1712 | { | |
1713 | char *f; | |
1714 | int r; | |
1715 | ||
1716 | f = savestring (filename); | |
1717 | bash_directory_completion_hook (&f); | |
1718 | ||
1719 | r = searching_path ? executable_file (f) : executable_or_directory (f); | |
1720 | free (f); | |
1721 | return r; | |
1722 | } | |
1723 | ||
726f6388 JA |
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 | |
1727 | table. */ | |
bb70624e | 1728 | char * |
726f6388 | 1729 | command_word_completion_function (hint_text, state) |
28ef6c31 | 1730 | const char *hint_text; |
726f6388 JA |
1731 | int state; |
1732 | { | |
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; | |
ac50fbac | 1737 | static char *fnhint = (char *)NULL; |
95732b49 | 1738 | static char *dequoted_hint = (char *)NULL; |
3185942a JA |
1739 | static char *directory_part = (char *)NULL; |
1740 | static char **glob_matches = (char **)NULL; | |
95732b49 | 1741 | static int path_index, hint_len, dequoted_len, istate, igncase; |
0628567a | 1742 | static int mapping_over, local_index, searching_path, hint_is_dir; |
3185942a | 1743 | static int old_glob_ignore_case, globpat; |
726f6388 JA |
1744 | static SHELL_VAR **varlist = (SHELL_VAR **)NULL; |
1745 | #if defined (ALIAS) | |
ccc6cda3 | 1746 | static alias_t **alias_list = (alias_t **)NULL; |
726f6388 | 1747 | #endif /* ALIAS */ |
ac50fbac | 1748 | char *temp, *cval; |
726f6388 JA |
1749 | |
1750 | /* We have to map over the possibilities for command words. If we have | |
1751 | no state, then make one just for that purpose. */ | |
3185942a | 1752 | if (state == 0) |
726f6388 | 1753 | { |
ac50fbac CR |
1754 | rl_filename_stat_hook = bash_command_name_stat_hook; |
1755 | ||
95732b49 JA |
1756 | if (dequoted_hint && dequoted_hint != hint) |
1757 | free (dequoted_hint); | |
726f6388 JA |
1758 | if (hint) |
1759 | free (hint); | |
1760 | ||
0628567a JA |
1761 | mapping_over = searching_path = 0; |
1762 | hint_is_dir = CMD_IS_DIR (hint_text); | |
726f6388 JA |
1763 | val = (char *)NULL; |
1764 | ||
95732b49 | 1765 | temp = rl_variable_value ("completion-ignore-case"); |
3185942a JA |
1766 | igncase = RL_BOOLEAN_VARIABLE_VALUE (temp); |
1767 | ||
1768 | if (glob_matches) | |
1769 | { | |
1770 | free (glob_matches); | |
1771 | glob_matches = (char **)NULL; | |
1772 | } | |
1773 | ||
1774 | globpat = glob_pattern_p (hint_text); | |
95732b49 | 1775 | |
726f6388 JA |
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 | |
1779 | is executable. */ | |
3185942a | 1780 | if (globpat || absolute_program (hint_text)) |
726f6388 JA |
1781 | { |
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 == '~') | |
3185942a JA |
1785 | { |
1786 | hint = bash_tilde_expand (hint_text, 0); | |
1787 | directory_part = savestring (hint_text); | |
1788 | temp = strchr (directory_part, '/'); | |
1789 | if (temp) | |
1790 | *temp = 0; | |
1791 | else | |
1792 | { | |
1793 | free (directory_part); | |
1794 | directory_part = (char *)NULL; | |
1795 | } | |
1796 | } | |
726f6388 JA |
1797 | else |
1798 | hint = savestring (hint_text); | |
95732b49 JA |
1799 | |
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) | |
1807 | { | |
1808 | dequoted_hint = bash_dequote_filename (hint, 0); | |
1809 | free (hint); | |
1810 | hint = dequoted_hint; | |
1811 | } | |
1812 | dequoted_len = hint_len = strlen (hint); | |
726f6388 JA |
1813 | |
1814 | if (filename_hint) | |
1815 | free (filename_hint); | |
95732b49 | 1816 | |
ac50fbac | 1817 | fnhint = filename_hint = savestring (hint); |
726f6388 | 1818 | |
726f6388 | 1819 | istate = 0; |
3185942a JA |
1820 | |
1821 | if (globpat) | |
1822 | { | |
1823 | mapping_over = 5; | |
1824 | goto globword; | |
1825 | } | |
1826 | else | |
1827 | { | |
ac50fbac | 1828 | if (dircomplete_expand && path_dot_or_dotdot (filename_hint)) |
16b2d7f4 CR |
1829 | { |
1830 | dircomplete_expand = 0; | |
1831 | set_directory_hook (); | |
1832 | dircomplete_expand = 1; | |
1833 | } | |
3185942a JA |
1834 | mapping_over = 4; |
1835 | goto inner; | |
1836 | } | |
726f6388 JA |
1837 | } |
1838 | ||
95732b49 JA |
1839 | dequoted_hint = hint = savestring (hint_text); |
1840 | dequoted_len = hint_len = strlen (hint); | |
726f6388 | 1841 | |
95732b49 JA |
1842 | if (rl_completion_found_quote && rl_completion_quote_character == 0) |
1843 | { | |
1844 | dequoted_hint = bash_dequote_filename (hint, 0); | |
1845 | dequoted_len = strlen (dequoted_hint); | |
1846 | } | |
1847 | ||
726f6388 | 1848 | path = get_string_value ("PATH"); |
95732b49 | 1849 | path_index = dot_in_path = 0; |
726f6388 JA |
1850 | |
1851 | /* Initialize the variables for each type of command word. */ | |
1852 | local_index = 0; | |
1853 | ||
1854 | if (varlist) | |
1855 | free (varlist); | |
1856 | ||
1857 | varlist = all_visible_functions (); | |
1858 | ||
1859 | #if defined (ALIAS) | |
1860 | if (alias_list) | |
1861 | free (alias_list); | |
1862 | ||
1863 | alias_list = all_aliases (); | |
1864 | #endif /* ALIAS */ | |
1865 | } | |
1866 | ||
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. */ | |
1869 | ||
1870 | switch (mapping_over) | |
1871 | { | |
1872 | case 0: /* Aliases come first. */ | |
1873 | #if defined (ALIAS) | |
1874 | while (alias_list && alias_list[local_index]) | |
1875 | { | |
1876 | register char *alias; | |
1877 | ||
1878 | alias = alias_list[local_index++]->name; | |
1879 | ||
1880 | if (STREQN (alias, hint, hint_len)) | |
1881 | return (savestring (alias)); | |
1882 | } | |
1883 | #endif /* ALIAS */ | |
1884 | local_index = 0; | |
1885 | mapping_over++; | |
1886 | ||
1887 | case 1: /* Then shell reserved words. */ | |
1888 | { | |
1889 | while (word_token_alist[local_index].word) | |
1890 | { | |
1891 | register char *reserved_word; | |
1892 | ||
1893 | reserved_word = word_token_alist[local_index++].word; | |
1894 | ||
1895 | if (STREQN (reserved_word, hint, hint_len)) | |
1896 | return (savestring (reserved_word)); | |
1897 | } | |
1898 | local_index = 0; | |
1899 | mapping_over++; | |
1900 | } | |
1901 | ||
1902 | case 2: /* Then function names. */ | |
1903 | while (varlist && varlist[local_index]) | |
1904 | { | |
1905 | register char *varname; | |
1906 | ||
1907 | varname = varlist[local_index++]->name; | |
1908 | ||
1909 | if (STREQN (varname, hint, hint_len)) | |
1910 | return (savestring (varname)); | |
1911 | } | |
1912 | local_index = 0; | |
1913 | mapping_over++; | |
1914 | ||
1915 | case 3: /* Then shell builtins. */ | |
1916 | for (; local_index < num_shell_builtins; local_index++) | |
1917 | { | |
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) | |
1922 | continue; | |
1923 | ||
1924 | if (STREQN (shell_builtins[local_index].name, hint, hint_len)) | |
1925 | { | |
1926 | int i = local_index++; | |
1927 | ||
1928 | return (savestring (shell_builtins[i].name)); | |
1929 | } | |
1930 | } | |
1931 | local_index = 0; | |
1932 | mapping_over++; | |
1933 | } | |
1934 | ||
3185942a JA |
1935 | globword: |
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. */ | |
30d188c2 | 1940 | if (globpat) |
3185942a JA |
1941 | { |
1942 | if (state == 0) | |
1943 | { | |
1944 | glob_ignore_case = igncase; | |
1945 | glob_matches = shell_glob_filename (hint); | |
1946 | glob_ignore_case = old_glob_ignore_case; | |
1947 | ||
1948 | if (GLOB_FAILED (glob_matches) || glob_matches == 0) | |
1949 | { | |
1950 | glob_matches = (char **)NULL; | |
1951 | return ((char *)NULL); | |
1952 | } | |
1953 | ||
1954 | local_index = 0; | |
1955 | ||
1956 | if (glob_matches[1] && rl_completion_type == TAB) /* multiple matches are bad */ | |
1957 | return ((char *)NULL); | |
1958 | } | |
1959 | ||
1960 | while (val = glob_matches[local_index++]) | |
1961 | { | |
1962 | if (executable_or_directory (val)) | |
1963 | { | |
ac50fbac | 1964 | if (*hint_text == '~' && directory_part) |
3185942a | 1965 | { |
ac50fbac | 1966 | temp = maybe_restore_tilde (val, directory_part); |
3185942a JA |
1967 | free (val); |
1968 | val = temp; | |
1969 | } | |
1970 | return (val); | |
1971 | } | |
1972 | free (val); | |
1973 | } | |
1974 | ||
1975 | glob_ignore_case = old_glob_ignore_case; | |
1976 | return ((char *)NULL); | |
1977 | } | |
1978 | ||
0628567a JA |
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. */ | |
1983 | if (hint_is_dir) | |
1984 | { | |
1985 | hint_is_dir = 0; /* only return the hint text once */ | |
1986 | return (savestring (hint_text)); | |
1987 | } | |
1988 | ||
ccc6cda3 | 1989 | /* Repeatedly call filename_completion_function while we have |
726f6388 JA |
1990 | members of PATH left. Question: should we stat each file? |
1991 | Answer: we call executable_file () on each file. */ | |
1992 | outer: | |
1993 | ||
1994 | istate = (val != (char *)NULL); | |
1995 | ||
3185942a | 1996 | if (istate == 0) |
726f6388 JA |
1997 | { |
1998 | char *current_path; | |
1999 | ||
2000 | /* Get the next directory from the path. If there is none, then we | |
2001 | are all done. */ | |
3185942a | 2002 | if (path == 0 || path[path_index] == 0 || |
726f6388 JA |
2003 | (current_path = extract_colon_unit (path, &path_index)) == 0) |
2004 | return ((char *)NULL); | |
2005 | ||
0628567a | 2006 | searching_path = 1; |
726f6388 JA |
2007 | if (*current_path == 0) |
2008 | { | |
2009 | free (current_path); | |
2010 | current_path = savestring ("."); | |
2011 | } | |
2012 | ||
2013 | if (*current_path == '~') | |
2014 | { | |
2015 | char *t; | |
2016 | ||
7117c2d2 | 2017 | t = bash_tilde_expand (current_path, 0); |
726f6388 JA |
2018 | free (current_path); |
2019 | current_path = t; | |
2020 | } | |
2021 | ||
95732b49 JA |
2022 | if (current_path[0] == '.' && current_path[1] == '\0') |
2023 | dot_in_path = 1; | |
2024 | ||
ac50fbac CR |
2025 | if (fnhint && fnhint != filename_hint) |
2026 | free (fnhint); | |
726f6388 JA |
2027 | if (filename_hint) |
2028 | free (filename_hint); | |
2029 | ||
7117c2d2 | 2030 | filename_hint = sh_makepath (current_path, hint, 0); |
ac50fbac CR |
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); | |
2037 | else | |
2038 | fnhint = filename_hint; | |
3185942a | 2039 | free (current_path); /* XXX */ |
726f6388 JA |
2040 | } |
2041 | ||
2042 | inner: | |
ac50fbac | 2043 | val = rl_filename_completion_function (fnhint, istate); |
16b2d7f4 CR |
2044 | if (mapping_over == 4 && dircomplete_expand) |
2045 | set_directory_hook (); | |
2046 | ||
726f6388 JA |
2047 | istate = 1; |
2048 | ||
ccc6cda3 | 2049 | if (val == 0) |
726f6388 JA |
2050 | { |
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); | |
2055 | ||
2056 | goto outer; | |
2057 | } | |
2058 | else | |
2059 | { | |
d166f048 | 2060 | int match, freetemp; |
726f6388 JA |
2061 | |
2062 | if (absolute_program (hint)) | |
2063 | { | |
95732b49 JA |
2064 | if (igncase == 0) |
2065 | match = strncmp (val, hint, hint_len) == 0; | |
2066 | else | |
2067 | match = strncasecmp (val, hint, hint_len) == 0; | |
2068 | ||
726f6388 JA |
2069 | /* If we performed tilde expansion, restore the original |
2070 | filename. */ | |
2071 | if (*hint_text == '~') | |
ac50fbac | 2072 | temp = maybe_restore_tilde (val, directory_part); |
726f6388 JA |
2073 | else |
2074 | temp = savestring (val); | |
d166f048 | 2075 | freetemp = 1; |
726f6388 JA |
2076 | } |
2077 | else | |
2078 | { | |
2079 | temp = strrchr (val, '/'); | |
2080 | ||
2081 | if (temp) | |
2082 | { | |
2083 | temp++; | |
95732b49 JA |
2084 | if (igncase == 0) |
2085 | freetemp = match = strncmp (temp, hint, hint_len) == 0; | |
2086 | else | |
2087 | freetemp = match = strncasecmp (temp, hint, hint_len) == 0; | |
726f6388 JA |
2088 | if (match) |
2089 | temp = savestring (temp); | |
2090 | } | |
2091 | else | |
d166f048 | 2092 | freetemp = match = 0; |
726f6388 JA |
2093 | } |
2094 | ||
0628567a JA |
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 | |
ac50fbac CR |
2099 | relative pathnames. */ |
2100 | #if 0 | |
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 | |
2109 | shell_execve(). */ | |
2110 | if (match && searching_path == 0 && *val == '.') | |
2111 | { | |
2112 | char *t, *t1; | |
2113 | ||
2114 | t = get_working_directory ("command-word-completion"); | |
2115 | t1 = make_absolute (val, t); | |
2116 | free (t); | |
2117 | cval = sh_canonpath (t1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); | |
2118 | } | |
2119 | else | |
0628567a | 2120 | #endif |
ac50fbac CR |
2121 | cval = val; |
2122 | ||
2123 | if (match && executable_completion ((searching_path ? val : cval), searching_path)) | |
726f6388 | 2124 | { |
ac50fbac CR |
2125 | if (cval != val) |
2126 | free (cval); | |
726f6388 JA |
2127 | free (val); |
2128 | val = ""; /* So it won't be NULL. */ | |
2129 | return (temp); | |
2130 | } | |
2131 | else | |
2132 | { | |
d166f048 JA |
2133 | if (freetemp) |
2134 | free (temp); | |
ac50fbac CR |
2135 | if (cval != val) |
2136 | free (cval); | |
726f6388 JA |
2137 | free (val); |
2138 | goto inner; | |
2139 | } | |
2140 | } | |
2141 | } | |
2142 | ||
d166f048 | 2143 | /* Completion inside an unterminated command substitution. */ |
726f6388 JA |
2144 | static char * |
2145 | command_subst_completion_function (text, state) | |
28ef6c31 | 2146 | const char *text; |
ccc6cda3 | 2147 | int state; |
726f6388 JA |
2148 | { |
2149 | static char **matches = (char **)NULL; | |
28ef6c31 JA |
2150 | static const char *orig_start; |
2151 | static char *filename_text = (char *)NULL; | |
726f6388 | 2152 | static int cmd_index, start_len; |
ccc6cda3 | 2153 | char *value; |
726f6388 JA |
2154 | |
2155 | if (state == 0) | |
2156 | { | |
2157 | if (filename_text) | |
2158 | free (filename_text); | |
2159 | orig_start = text; | |
2160 | if (*text == '`') | |
28ef6c31 | 2161 | text++; |
cce855bc | 2162 | else if (*text == '$' && text[1] == '(') /* ) */ |
28ef6c31 | 2163 | text += 2; |
b80f6443 JA |
2164 | /* If the text was quoted, suppress any quote character that the |
2165 | readline completion code would insert. */ | |
2166 | rl_completion_suppress_quote = 1; | |
726f6388 JA |
2167 | start_len = text - orig_start; |
2168 | filename_text = savestring (text); | |
2169 | if (matches) | |
2170 | free (matches); | |
7117c2d2 JA |
2171 | |
2172 | /* | |
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. | |
2177 | */ | |
2178 | for (value = filename_text + strlen (filename_text) - 1; value > filename_text; value--) | |
2179 | if (whitespace (*value) || member (*value, COMMAND_SEPARATORS)) | |
2180 | break; | |
2181 | if (value <= filename_text) | |
2182 | matches = rl_completion_matches (filename_text, command_word_completion_function); | |
2183 | else | |
2184 | { | |
2185 | value++; | |
2186 | start_len += value - filename_text; | |
2187 | if (whitespace (value[-1])) | |
2188 | matches = rl_completion_matches (value, rl_filename_completion_function); | |
2189 | else | |
2190 | matches = rl_completion_matches (value, command_word_completion_function); | |
2191 | } | |
2192 | ||
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]; | |
95732b49 JA |
2196 | |
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 = '/'; | |
2201 | else | |
2202 | rl_completion_suppress_append = 1; | |
726f6388 JA |
2203 | } |
2204 | ||
ac50fbac | 2205 | if (matches == 0 || matches[cmd_index] == 0) |
726f6388 JA |
2206 | { |
2207 | rl_filename_quoting_desired = 0; /* disable quoting */ | |
2208 | return ((char *)NULL); | |
2209 | } | |
2210 | else | |
2211 | { | |
f73dda09 | 2212 | value = (char *)xmalloc (1 + start_len + strlen (matches[cmd_index])); |
726f6388 JA |
2213 | |
2214 | if (start_len == 1) | |
28ef6c31 | 2215 | value[0] = *orig_start; |
726f6388 | 2216 | else |
28ef6c31 | 2217 | strncpy (value, orig_start, start_len); |
726f6388 JA |
2218 | |
2219 | strcpy (value + start_len, matches[cmd_index]); | |
2220 | ||
2221 | cmd_index++; | |
2222 | return (value); | |
2223 | } | |
2224 | } | |
2225 | ||
2226 | /* Okay, now we write the entry_function for variable completion. */ | |
2227 | static char * | |
2228 | variable_completion_function (text, state) | |
28ef6c31 | 2229 | const char *text; |
726f6388 | 2230 | int state; |
726f6388 | 2231 | { |
bb70624e | 2232 | static char **varlist = (char **)NULL; |
726f6388 JA |
2233 | static int varlist_index; |
2234 | static char *varname = (char *)NULL; | |
2235 | static int namelen; | |
2236 | static int first_char, first_char_loc; | |
2237 | ||
2238 | if (!state) | |
2239 | { | |
2240 | if (varname) | |
2241 | free (varname); | |
2242 | ||
2243 | first_char_loc = 0; | |
2244 | first_char = text[0]; | |
2245 | ||
2246 | if (first_char == '$') | |
2247 | first_char_loc++; | |
2248 | ||
ccc6cda3 | 2249 | if (text[first_char_loc] == '{') |
28ef6c31 | 2250 | first_char_loc++; |
ccc6cda3 | 2251 | |
726f6388 JA |
2252 | varname = savestring (text + first_char_loc); |
2253 | ||
2254 | namelen = strlen (varname); | |
2255 | if (varlist) | |
7117c2d2 | 2256 | strvec_dispose (varlist); |
726f6388 | 2257 | |
bb70624e JA |
2258 | varlist = all_variables_matching_prefix (varname); |
2259 | varlist_index = 0; | |
726f6388 JA |
2260 | } |
2261 | ||
2262 | if (!varlist || !varlist[varlist_index]) | |
2263 | { | |
2264 | return ((char *)NULL); | |
2265 | } | |
2266 | else | |
2267 | { | |
f73dda09 JA |
2268 | char *value; |
2269 | ||
2270 | value = (char *)xmalloc (4 + strlen (varlist[varlist_index])); | |
726f6388 JA |
2271 | |
2272 | if (first_char_loc) | |
ccc6cda3 JA |
2273 | { |
2274 | value[0] = first_char; | |
2275 | if (first_char_loc == 2) | |
2276 | value[1] = '{'; | |
2277 | } | |
726f6388 | 2278 | |
bb70624e | 2279 | strcpy (value + first_char_loc, varlist[varlist_index]); |
ccc6cda3 | 2280 | if (first_char_loc == 2) |
28ef6c31 | 2281 | strcat (value, "}"); |
726f6388 JA |
2282 | |
2283 | varlist_index++; | |
2284 | return (value); | |
2285 | } | |
2286 | } | |
2287 | ||
2288 | /* How about a completion function for hostnames? */ | |
2289 | static char * | |
2290 | hostname_completion_function (text, state) | |
28ef6c31 | 2291 | const char *text; |
726f6388 | 2292 | int state; |
726f6388 JA |
2293 | { |
2294 | static char **list = (char **)NULL; | |
2295 | static int list_index = 0; | |
2296 | static int first_char, first_char_loc; | |
2297 | ||
2298 | /* If we don't have any state, make some. */ | |
ccc6cda3 | 2299 | if (state == 0) |
726f6388 | 2300 | { |
ccc6cda3 | 2301 | FREE (list); |
726f6388 JA |
2302 | |
2303 | list = (char **)NULL; | |
2304 | ||
2305 | first_char_loc = 0; | |
2306 | first_char = *text; | |
2307 | ||
2308 | if (first_char == '@') | |
2309 | first_char_loc++; | |
2310 | ||
f73dda09 | 2311 | list = hostnames_matching ((char *)text+first_char_loc); |
726f6388 JA |
2312 | list_index = 0; |
2313 | } | |
2314 | ||
2315 | if (list && list[list_index]) | |
2316 | { | |
ccc6cda3 | 2317 | char *t; |
726f6388 | 2318 | |
f73dda09 | 2319 | t = (char *)xmalloc (2 + strlen (list[list_index])); |
726f6388 JA |
2320 | *t = first_char; |
2321 | strcpy (t + first_char_loc, list[list_index]); | |
2322 | list_index++; | |
2323 | return (t); | |
2324 | } | |
ccc6cda3 JA |
2325 | |
2326 | return ((char *)NULL); | |
726f6388 JA |
2327 | } |
2328 | ||
7117c2d2 JA |
2329 | /* |
2330 | * A completion function for service names from /etc/services (or wherever). | |
2331 | */ | |
2332 | char * | |
2333 | bash_servicename_completion_function (text, state) | |
2334 | const char *text; | |
2335 | int state; | |
2336 | { | |
2337 | #if defined (__WIN32__) || defined (__OPENNT) || !defined (HAVE_GETSERVENT) | |
2338 | return ((char *)NULL); | |
2339 | #else | |
2340 | static char *sname = (char *)NULL; | |
2341 | static struct servent *srvent; | |
2342 | static int snamelen, firstc; | |
2343 | char *value; | |
2344 | char **alist, *aentry; | |
2345 | int afound; | |
2346 | ||
2347 | if (state == 0) | |
2348 | { | |
2349 | FREE (sname); | |
2350 | firstc = *text; | |
2351 | ||
2352 | sname = savestring (text); | |
2353 | snamelen = strlen (sname); | |
2354 | setservent (0); | |
2355 | } | |
2356 | ||
2357 | while (srvent = getservent ()) | |
2358 | { | |
2359 | afound = 0; | |
2360 | if (snamelen == 0 || (STREQN (sname, srvent->s_name, snamelen))) | |
2361 | break; | |
2362 | /* Not primary, check aliases */ | |
0628567a | 2363 | for (alist = srvent->s_aliases; *alist; alist++) |
7117c2d2 | 2364 | { |
0628567a | 2365 | aentry = *alist; |
7117c2d2 JA |
2366 | if (STREQN (sname, aentry, snamelen)) |
2367 | { | |
2368 | afound = 1; | |
2369 | break; | |
2370 | } | |
2371 | } | |
2372 | ||
2373 | if (afound) | |
2374 | break; | |
2375 | } | |
2376 | ||
2377 | if (srvent == 0) | |
2378 | { | |
2379 | endservent (); | |
2380 | return ((char *)NULL); | |
2381 | } | |
2382 | ||
2383 | value = afound ? savestring (aentry) : savestring (srvent->s_name); | |
2384 | return value; | |
2385 | #endif | |
2386 | } | |
2387 | ||
2388 | /* | |
2389 | * A completion function for group names from /etc/group (or wherever). | |
2390 | */ | |
f73dda09 JA |
2391 | char * |
2392 | bash_groupname_completion_function (text, state) | |
2393 | const char *text; | |
2394 | int state; | |
2395 | { | |
2396 | #if defined (__WIN32__) || defined (__OPENNT) || !defined (HAVE_GRP_H) | |
2397 | return ((char *)NULL); | |
2398 | #else | |
2399 | static char *gname = (char *)NULL; | |
2400 | static struct group *grent; | |
2401 | static int gnamelen; | |
2402 | char *value; | |
2403 | ||
2404 | if (state == 0) | |
2405 | { | |
2406 | FREE (gname); | |
2407 | gname = savestring (text); | |
2408 | gnamelen = strlen (gname); | |
2409 | ||
2410 | setgrent (); | |
2411 | } | |
2412 | ||
2413 | while (grent = getgrent ()) | |
2414 | { | |
2415 | if (gnamelen == 0 || (STREQN (gname, grent->gr_name, gnamelen))) | |
2416 | break; | |
2417 | } | |
2418 | ||
2419 | if (grent == 0) | |
2420 | { | |
2421 | endgrent (); | |
2422 | return ((char *)NULL); | |
2423 | } | |
2424 | ||
2425 | value = savestring (grent->gr_name); | |
2426 | return (value); | |
2427 | #endif | |
2428 | } | |
2429 | ||
cce855bc JA |
2430 | /* Functions to perform history and alias expansions on the current line. */ |
2431 | ||
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. */ | |
726f6388 JA |
2436 | static char * |
2437 | history_expand_line_internal (line) | |
2438 | char *line; | |
2439 | { | |
2440 | char *new_line; | |
b80f6443 | 2441 | int old_verify; |
726f6388 | 2442 | |
b80f6443 JA |
2443 | old_verify = hist_verify; |
2444 | hist_verify = 0; | |
726f6388 | 2445 | new_line = pre_process_line (line, 0, 0); |
b80f6443 JA |
2446 | hist_verify = old_verify; |
2447 | ||
d166f048 | 2448 | return (new_line == line) ? savestring (line) : new_line; |
726f6388 | 2449 | } |
726f6388 JA |
2450 | #endif |
2451 | ||
2452 | /* There was an error in expansion. Let the preprocessor print | |
2453 | the error here. */ | |
2454 | static void | |
2455 | cleanup_expansion_error () | |
2456 | { | |
2457 | char *to_free; | |
b80f6443 JA |
2458 | #if defined (BANG_HISTORY) |
2459 | int old_verify; | |
2460 | ||
2461 | old_verify = hist_verify; | |
2462 | hist_verify = 0; | |
2463 | #endif | |
726f6388 JA |
2464 | |
2465 | fprintf (rl_outstream, "\r\n"); | |
2466 | to_free = pre_process_line (rl_line_buffer, 1, 0); | |
b80f6443 JA |
2467 | #if defined (BANG_HISTORY) |
2468 | hist_verify = old_verify; | |
2469 | #endif | |
d166f048 | 2470 | if (to_free != rl_line_buffer) |
b80f6443 | 2471 | FREE (to_free); |
726f6388 JA |
2472 | putc ('\r', rl_outstream); |
2473 | rl_forced_update_display (); | |
2474 | } | |
2475 | ||
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. */ | |
2479 | static void | |
2480 | maybe_make_readline_line (new_line) | |
2481 | char *new_line; | |
2482 | { | |
2483 | if (strcmp (new_line, rl_line_buffer) != 0) | |
2484 | { | |
2485 | rl_point = rl_end; | |
2486 | ||
2487 | rl_add_undo (UNDO_BEGIN, 0, 0, 0); | |
2488 | rl_delete_text (0, rl_point); | |
7117c2d2 | 2489 | rl_point = rl_end = rl_mark = 0; |
726f6388 JA |
2490 | rl_insert_text (new_line); |
2491 | rl_add_undo (UNDO_END, 0, 0, 0); | |
2492 | } | |
2493 | } | |
2494 | ||
2495 | /* Make NEW_LINE be the current readline line. This frees NEW_LINE. */ | |
2496 | static void | |
2497 | set_up_new_line (new_line) | |
2498 | char *new_line; | |
2499 | { | |
f73dda09 JA |
2500 | int old_point, at_end; |
2501 | ||
2502 | old_point = rl_point; | |
2503 | at_end = rl_point == rl_end; | |
726f6388 JA |
2504 | |
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); | |
2508 | free (new_line); | |
2509 | ||
2510 | /* Place rl_point where we think it should go. */ | |
2511 | if (at_end) | |
2512 | rl_point = rl_end; | |
2513 | else if (old_point < rl_end) | |
2514 | { | |
2515 | rl_point = old_point; | |
2516 | if (!whitespace (rl_line_buffer[rl_point])) | |
b72432fd | 2517 | rl_forward_word (1, 0); |
726f6388 JA |
2518 | } |
2519 | } | |
2520 | ||
cce855bc JA |
2521 | #if defined (ALIAS) |
2522 | /* Expand aliases in the current readline line. */ | |
2523 | static int | |
28ef6c31 JA |
2524 | alias_expand_line (count, ignore) |
2525 | int count, ignore; | |
cce855bc JA |
2526 | { |
2527 | char *new_line; | |
2528 | ||
2529 | new_line = alias_expand (rl_line_buffer); | |
2530 | ||
2531 | if (new_line) | |
2532 | { | |
2533 | set_up_new_line (new_line); | |
2534 | return (0); | |
2535 | } | |
2536 | else | |
2537 | { | |
2538 | cleanup_expansion_error (); | |
2539 | return (1); | |
2540 | } | |
2541 | } | |
2542 | #endif | |
2543 | ||
2544 | #if defined (BANG_HISTORY) | |
726f6388 | 2545 | /* History expand the line. */ |
cce855bc | 2546 | static int |
28ef6c31 JA |
2547 | history_expand_line (count, ignore) |
2548 | int count, ignore; | |
726f6388 JA |
2549 | { |
2550 | char *new_line; | |
2551 | ||
2552 | new_line = history_expand_line_internal (rl_line_buffer); | |
2553 | ||
2554 | if (new_line) | |
cce855bc JA |
2555 | { |
2556 | set_up_new_line (new_line); | |
2557 | return (0); | |
2558 | } | |
726f6388 | 2559 | else |
cce855bc JA |
2560 | { |
2561 | cleanup_expansion_error (); | |
2562 | return (1); | |
2563 | } | |
2564 | } | |
2565 | ||
2566 | /* Expand history substitutions in the current line and then insert a | |
28ef6c31 | 2567 | space (hopefully close to where we were before). */ |
cce855bc | 2568 | static int |
28ef6c31 JA |
2569 | tcsh_magic_space (count, ignore) |
2570 | int count, ignore; | |
cce855bc | 2571 | { |
28ef6c31 JA |
2572 | int dist_from_end, old_point; |
2573 | ||
2574 | old_point = rl_point; | |
2575 | dist_from_end = rl_end - rl_point; | |
2576 | if (history_expand_line (count, ignore) == 0) | |
cce855bc | 2577 | { |
28ef6c31 JA |
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 | |
2580 | were performed. */ | |
2581 | rl_point = (old_point == 0) ? old_point : rl_end - dist_from_end; | |
cce855bc JA |
2582 | rl_insert (1, ' '); |
2583 | return (0); | |
2584 | } | |
2585 | else | |
2586 | return (1); | |
726f6388 | 2587 | } |
95732b49 | 2588 | #endif /* BANG_HISTORY */ |
ccc6cda3 | 2589 | |
726f6388 | 2590 | /* History and alias expand the line. */ |
cce855bc | 2591 | static int |
28ef6c31 JA |
2592 | history_and_alias_expand_line (count, ignore) |
2593 | int count, ignore; | |
726f6388 JA |
2594 | { |
2595 | char *new_line; | |
2596 | ||
95732b49 JA |
2597 | new_line = 0; |
2598 | #if defined (BANG_HISTORY) | |
b80f6443 | 2599 | new_line = history_expand_line_internal (rl_line_buffer); |
95732b49 | 2600 | #endif |
726f6388 JA |
2601 | |
2602 | #if defined (ALIAS) | |
2603 | if (new_line) | |
2604 | { | |
2605 | char *alias_line; | |
2606 | ||
2607 | alias_line = alias_expand (new_line); | |
2608 | free (new_line); | |
2609 | new_line = alias_line; | |
2610 | } | |
2611 | #endif /* ALIAS */ | |
2612 | ||
2613 | if (new_line) | |
cce855bc JA |
2614 | { |
2615 | set_up_new_line (new_line); | |
2616 | return (0); | |
2617 | } | |
726f6388 | 2618 | else |
cce855bc JA |
2619 | { |
2620 | cleanup_expansion_error (); | |
2621 | return (1); | |
2622 | } | |
726f6388 JA |
2623 | } |
2624 | ||
2625 | /* History and alias expand the line, then perform the shell word | |
cce855bc JA |
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. */ | |
28ef6c31 JA |
2629 | static int |
2630 | shell_expand_line (count, ignore) | |
2631 | int count, ignore; | |
726f6388 JA |
2632 | { |
2633 | char *new_line; | |
ccc6cda3 | 2634 | WORD_LIST *expanded_string; |
726f6388 | 2635 | |
95732b49 JA |
2636 | new_line = 0; |
2637 | #if defined (BANG_HISTORY) | |
b80f6443 | 2638 | new_line = history_expand_line_internal (rl_line_buffer); |
95732b49 | 2639 | #endif |
726f6388 JA |
2640 | |
2641 | #if defined (ALIAS) | |
2642 | if (new_line) | |
2643 | { | |
2644 | char *alias_line; | |
2645 | ||
2646 | alias_line = alias_expand (new_line); | |
2647 | free (new_line); | |
2648 | new_line = alias_line; | |
2649 | } | |
2650 | #endif /* ALIAS */ | |
2651 | ||
2652 | if (new_line) | |
2653 | { | |
2654 | int old_point = rl_point; | |
2655 | int at_end = rl_point == rl_end; | |
2656 | ||
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); | |
2660 | free (new_line); | |
2661 | ||
2662 | /* If there is variable expansion to perform, do that as a separate | |
2663 | operation to be undone. */ | |
d166f048 JA |
2664 | new_line = savestring (rl_line_buffer); |
2665 | expanded_string = expand_string (new_line, 0); | |
2666 | FREE (new_line); | |
ccc6cda3 JA |
2667 | if (expanded_string == 0) |
2668 | { | |
f73dda09 | 2669 | new_line = (char *)xmalloc (1); |
ccc6cda3 JA |
2670 | new_line[0] = '\0'; |
2671 | } | |
2672 | else | |
2673 | { | |
2674 | new_line = string_list (expanded_string); | |
2675 | dispose_words (expanded_string); | |
2676 | } | |
726f6388 | 2677 | |
ccc6cda3 JA |
2678 | maybe_make_readline_line (new_line); |
2679 | free (new_line); | |
726f6388 | 2680 | |
ccc6cda3 JA |
2681 | /* Place rl_point where we think it should go. */ |
2682 | if (at_end) | |
2683 | rl_point = rl_end; | |
2684 | else if (old_point < rl_end) | |
2685 | { | |
2686 | rl_point = old_point; | |
2687 | if (!whitespace (rl_line_buffer[rl_point])) | |
b72432fd | 2688 | rl_forward_word (1, 0); |
ccc6cda3 | 2689 | } |
28ef6c31 | 2690 | return 0; |
726f6388 JA |
2691 | } |
2692 | else | |
28ef6c31 JA |
2693 | { |
2694 | cleanup_expansion_error (); | |
2695 | return 1; | |
2696 | } | |
726f6388 JA |
2697 | } |
2698 | ||
ccc6cda3 JA |
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 | |
726f6388 JA |
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" | |
ccc6cda3 | 2705 | completion types, such as hostnames or commands. */ |
726f6388 | 2706 | |
ccc6cda3 | 2707 | static struct ignorevar fignore = |
726f6388 | 2708 | { |
ccc6cda3 JA |
2709 | "FIGNORE", |
2710 | (struct ign *)0, | |
2711 | 0, | |
2712 | (char *)0, | |
f73dda09 | 2713 | (sh_iv_item_func_t *) 0, |
ccc6cda3 | 2714 | }; |
726f6388 | 2715 | |
726f6388 | 2716 | static void |
ccc6cda3 | 2717 | _ignore_completion_names (names, name_func) |
726f6388 | 2718 | char **names; |
f73dda09 | 2719 | sh_ignore_func_t *name_func; |
726f6388 JA |
2720 | { |
2721 | char **newnames; | |
2722 | int idx, nidx; | |
cce855bc JA |
2723 | char **oldnames; |
2724 | int oidx; | |
726f6388 JA |
2725 | |
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) | |
2731 | { | |
b80f6443 JA |
2732 | if (force_fignore) |
2733 | if ((*name_func) (names[0]) == 0) | |
2734 | { | |
2735 | free (names[0]); | |
2736 | names[0] = (char *)NULL; | |
2737 | } | |
2738 | ||
726f6388 JA |
2739 | return; |
2740 | } | |
2741 | ||
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++) | |
2745 | ; | |
7117c2d2 | 2746 | newnames = strvec_create (nidx + 1); |
b80f6443 JA |
2747 | |
2748 | if (force_fignore == 0) | |
2749 | { | |
2750 | oldnames = strvec_create (nidx - 1); | |
2751 | oidx = 0; | |
2752 | } | |
726f6388 JA |
2753 | |
2754 | newnames[0] = names[0]; | |
2755 | for (idx = nidx = 1; names[idx]; idx++) | |
2756 | { | |
2757 | if ((*name_func) (names[idx])) | |
2758 | newnames[nidx++] = names[idx]; | |
b80f6443 JA |
2759 | else if (force_fignore == 0) |
2760 | oldnames[oidx++] = names[idx]; | |
726f6388 | 2761 | else |
28ef6c31 | 2762 | free (names[idx]); |
726f6388 JA |
2763 | } |
2764 | ||
2765 | newnames[nidx] = (char *)NULL; | |
2766 | ||
2767 | /* If none are acceptable then let the completer handle it. */ | |
2768 | if (nidx == 1) | |
2769 | { | |
b80f6443 JA |
2770 | if (force_fignore) |
2771 | { | |
2772 | free (names[0]); | |
2773 | names[0] = (char *)NULL; | |
2774 | } | |
2775 | else | |
2776 | free (oldnames); | |
2777 | ||
726f6388 JA |
2778 | free (newnames); |
2779 | return; | |
2780 | } | |
2781 | ||
b80f6443 JA |
2782 | if (force_fignore == 0) |
2783 | { | |
2784 | while (oidx) | |
2785 | free (oldnames[--oidx]); | |
2786 | free (oldnames); | |
2787 | } | |
cce855bc | 2788 | |
726f6388 JA |
2789 | /* If only one is acceptable, copy it to names[0] and return. */ |
2790 | if (nidx == 2) | |
2791 | { | |
2792 | free (names[0]); | |
2793 | names[0] = newnames[1]; | |
2794 | names[1] = (char *)NULL; | |
2795 | free (newnames); | |
2796 | return; | |
2797 | } | |
ccc6cda3 | 2798 | |
726f6388 JA |
2799 | /* Copy the acceptable names back to NAMES, set the new array end, |
2800 | and return. */ | |
2801 | for (nidx = 1; newnames[nidx]; nidx++) | |
2802 | names[nidx] = newnames[nidx]; | |
2803 | names[nidx] = (char *)NULL; | |
ccc6cda3 JA |
2804 | free (newnames); |
2805 | } | |
2806 | ||
2807 | static int | |
2808 | name_is_acceptable (name) | |
f73dda09 | 2809 | const char *name; |
ccc6cda3 JA |
2810 | { |
2811 | struct ign *p; | |
2812 | int nlen; | |
2813 | ||
2814 | for (nlen = strlen (name), p = fignore.ignores; p->val; p++) | |
2815 | { | |
2816 | if (nlen > p->len && p->len > 0 && STREQ (p->val, &name[nlen - p->len])) | |
2817 | return (0); | |
2818 | } | |
2819 | ||
2820 | return (1); | |
726f6388 JA |
2821 | } |
2822 | ||
b72432fd JA |
2823 | #if 0 |
2824 | static int | |
2825 | ignore_dot_names (name) | |
2826 | char *name; | |
2827 | { | |
2828 | return (name[0] != '.'); | |
2829 | } | |
2830 | #endif | |
2831 | ||
28ef6c31 | 2832 | static int |
726f6388 JA |
2833 | filename_completion_ignore (names) |
2834 | char **names; | |
2835 | { | |
b72432fd JA |
2836 | #if 0 |
2837 | if (glob_dot_filenames == 0) | |
2838 | _ignore_completion_names (names, ignore_dot_names); | |
2839 | #endif | |
2840 | ||
ccc6cda3 | 2841 | setup_ignore_patterns (&fignore); |
726f6388 | 2842 | |
ccc6cda3 | 2843 | if (fignore.num_ignores == 0) |
28ef6c31 | 2844 | return 0; |
726f6388 | 2845 | |
ccc6cda3 | 2846 | _ignore_completion_names (names, name_is_acceptable); |
28ef6c31 JA |
2847 | |
2848 | return 0; | |
726f6388 JA |
2849 | } |
2850 | ||
3185942a | 2851 | /* Return 1 if NAME is a directory. NAME undergoes tilde expansion. */ |
726f6388 JA |
2852 | static int |
2853 | test_for_directory (name) | |
f73dda09 | 2854 | const char *name; |
726f6388 | 2855 | { |
726f6388 | 2856 | char *fn; |
3185942a | 2857 | int r; |
726f6388 | 2858 | |
7117c2d2 | 2859 | fn = bash_tilde_expand (name, 0); |
3185942a | 2860 | r = file_isdir (fn); |
726f6388 | 2861 | free (fn); |
3185942a JA |
2862 | |
2863 | return (r); | |
726f6388 JA |
2864 | } |
2865 | ||
2866 | /* Remove files from NAMES, leaving directories. */ | |
28ef6c31 | 2867 | static int |
726f6388 JA |
2868 | bash_ignore_filenames (names) |
2869 | char **names; | |
2870 | { | |
ccc6cda3 | 2871 | _ignore_completion_names (names, test_for_directory); |
28ef6c31 | 2872 | return 0; |
726f6388 JA |
2873 | } |
2874 | ||
bb70624e JA |
2875 | static int |
2876 | return_zero (name) | |
f73dda09 | 2877 | const char *name; |
bb70624e JA |
2878 | { |
2879 | return 0; | |
2880 | } | |
2881 | ||
28ef6c31 | 2882 | static int |
bb70624e JA |
2883 | bash_ignore_everything (names) |
2884 | char **names; | |
2885 | { | |
2886 | _ignore_completion_names (names, return_zero); | |
28ef6c31 | 2887 | return 0; |
bb70624e JA |
2888 | } |
2889 | ||
3185942a JA |
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). */ | |
2893 | static char * | |
2894 | restore_tilde (val, directory_part) | |
2895 | char *val, *directory_part; | |
2896 | { | |
2897 | int l, vl, dl2, xl; | |
2898 | char *dh2, *expdir, *ret; | |
2899 | ||
2900 | vl = strlen (val); | |
2901 | ||
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); | |
2906 | dl2 = strlen (dh2); | |
2907 | ||
2908 | expdir = bash_tilde_expand (directory_part, 0); | |
2909 | xl = strlen (expdir); | |
2910 | free (expdir); | |
2911 | ||
2912 | /* | |
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 | |
2918 | */ | |
2919 | l = (vl - xl) + 1; | |
2920 | ||
2921 | ret = (char *)xmalloc (dl2 + 2 + l); | |
2922 | strcpy (ret, dh2); | |
2923 | strcpy (ret + dl2, val + xl); | |
2924 | ||
2925 | free (dh2); | |
2926 | return (ret); | |
2927 | } | |
2928 | ||
ac50fbac CR |
2929 | static char * |
2930 | maybe_restore_tilde (val, directory_part) | |
2931 | char *val, *directory_part; | |
2932 | { | |
2933 | rl_icppfunc_t *save; | |
2934 | char *ret; | |
2935 | ||
2936 | save = (dircomplete_expand == 0) ? save_directory_hook () : (rl_icppfunc_t *)0; | |
2937 | ret = restore_tilde (val, directory_part); | |
2938 | if (save) | |
2939 | restore_directory_hook (save); | |
2940 | return ret; | |
2941 | } | |
2942 | ||
eb873671 JA |
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. */ | |
95732b49 | 2946 | static void |
eb873671 JA |
2947 | bash_directory_expansion (dirname) |
2948 | char **dirname; | |
2949 | { | |
0628567a | 2950 | char *d, *nd; |
eb873671 JA |
2951 | |
2952 | d = savestring (*dirname); | |
2953 | ||
ac50fbac CR |
2954 | if ((rl_directory_rewrite_hook) && (*rl_directory_rewrite_hook) (&d)) |
2955 | { | |
2956 | free (*dirname); | |
2957 | *dirname = d; | |
2958 | } | |
495aee44 | 2959 | else if (rl_directory_completion_hook && (*rl_directory_completion_hook) (&d)) |
eb873671 JA |
2960 | { |
2961 | free (*dirname); | |
2962 | *dirname = d; | |
2963 | } | |
0628567a JA |
2964 | else if (rl_completion_found_quote) |
2965 | { | |
2966 | nd = bash_dequote_filename (d, rl_completion_quote_character); | |
2967 | free (*dirname); | |
2968 | free (d); | |
2969 | *dirname = nd; | |
2970 | } | |
eb873671 | 2971 | } |
3185942a | 2972 | |
0001803f CR |
2973 | /* If necessary, rewrite directory entry */ |
2974 | static char * | |
2975 | bash_filename_rewrite_hook (fname, fnlen) | |
2976 | char *fname; | |
2977 | int fnlen; | |
2978 | { | |
2979 | char *conv; | |
2980 | ||
2981 | conv = fnx_fromfs (fname, fnlen); | |
2982 | if (conv != fname) | |
2983 | conv = savestring (conv); | |
2984 | return conv; | |
2985 | } | |
2986 | ||
16b2d7f4 CR |
2987 | /* Functions to save and restore the appropriate directory hook */ |
2988 | /* This is not static so the shopt code can call it */ | |
2989 | void | |
2990 | set_directory_hook () | |
2991 | { | |
2992 | if (dircomplete_expand) | |
2993 | { | |
2994 | rl_directory_completion_hook = bash_directory_completion_hook; | |
2995 | rl_directory_rewrite_hook = (rl_icppfunc_t *)0; | |
2996 | } | |
2997 | else | |
2998 | { | |
2999 | rl_directory_rewrite_hook = bash_directory_completion_hook; | |
3000 | rl_directory_completion_hook = (rl_icppfunc_t *)0; | |
3001 | } | |
3002 | } | |
3003 | ||
3004 | static rl_icppfunc_t * | |
3005 | save_directory_hook () | |
3006 | { | |
3007 | rl_icppfunc_t *ret; | |
3008 | ||
3009 | if (dircomplete_expand) | |
3010 | { | |
3011 | ret = rl_directory_completion_hook; | |
3012 | rl_directory_completion_hook = (rl_icppfunc_t *)NULL; | |
3013 | } | |
3014 | else | |
3015 | { | |
3016 | ret = rl_directory_rewrite_hook; | |
3017 | rl_directory_rewrite_hook = (rl_icppfunc_t *)NULL; | |
3018 | } | |
3019 | ||
3020 | return ret; | |
3021 | } | |
3022 | ||
3023 | static void | |
3024 | restore_directory_hook (hookf) | |
3025 | rl_icppfunc_t *hookf; | |
3026 | { | |
3027 | if (dircomplete_expand) | |
3028 | rl_directory_completion_hook = hookf; | |
3029 | else | |
3030 | rl_directory_rewrite_hook = hookf; | |
3031 | } | |
3032 | ||
ac50fbac CR |
3033 | /* Expand a filename before the readline completion code passes it to stat(2). |
3034 | The filename will already have had tilde expansion performed. */ | |
3035 | static int | |
3036 | bash_filename_stat_hook (dirname) | |
3037 | char **dirname; | |
3038 | { | |
3039 | char *local_dirname, *new_dirname, *t; | |
3040 | int should_expand_dirname, return_value; | |
3041 | WORD_LIST *wl; | |
3042 | struct stat sb; | |
3043 | ||
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 = '`'; | |
3050 | ||
3051 | #if defined (HAVE_LSTAT) | |
3052 | if (should_expand_dirname && lstat (local_dirname, &sb) == 0) | |
3053 | #else | |
3054 | if (should_expand_dirname && stat (local_dirname, &sb) == 0) | |
3055 | #endif | |
3056 | should_expand_dirname = 0; | |
3057 | ||
3058 | if (should_expand_dirname) | |
3059 | { | |
3060 | new_dirname = savestring (local_dirname); | |
3061 | wl = expand_prompt_string (new_dirname, 0, W_NOCOMSUB); /* does the right thing */ | |
3062 | if (wl) | |
3063 | { | |
3064 | free (new_dirname); | |
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) | |
3070 | { | |
3071 | free (local_dirname); /* XXX */ | |
3072 | local_dirname = *dirname = new_dirname; | |
3073 | return_value = STREQ (local_dirname, *dirname) == 0; | |
3074 | } | |
3075 | else | |
3076 | free (new_dirname); | |
3077 | dispose_words (wl); | |
3078 | } | |
3079 | else | |
3080 | free (new_dirname); | |
3081 | } | |
3082 | ||
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])) | |
3087 | { | |
3088 | char *temp1, *temp2; | |
3089 | ||
3090 | t = get_working_directory ("symlink-hook"); | |
3091 | temp1 = make_absolute (local_dirname, t); | |
3092 | free (t); | |
3093 | temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); | |
3094 | ||
3095 | /* If we can't canonicalize, bail. */ | |
3096 | if (temp2 == 0) | |
3097 | { | |
3098 | free (temp1); | |
3099 | return return_value; | |
3100 | } | |
3101 | ||
3102 | free (local_dirname); | |
3103 | *dirname = temp2; | |
3104 | free (temp1); | |
3105 | } | |
3106 | ||
3107 | return (return_value); | |
3108 | } | |
3109 | ||
726f6388 | 3110 | /* Handle symbolic link references and other directory name |
495aee44 CR |
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. */ | |
726f6388 JA |
3114 | static int |
3115 | bash_directory_completion_hook (dirname) | |
3116 | char **dirname; | |
3117 | { | |
b72432fd | 3118 | char *local_dirname, *new_dirname, *t; |
16b2d7f4 | 3119 | int return_value, should_expand_dirname, nextch, closer; |
726f6388 | 3120 | WORD_LIST *wl; |
b80f6443 | 3121 | struct stat sb; |
726f6388 | 3122 | |
16b2d7f4 | 3123 | return_value = should_expand_dirname = nextch = closer = 0; |
726f6388 | 3124 | local_dirname = *dirname; |
bb70624e | 3125 | |
16b2d7f4 CR |
3126 | if (t = mbschr (local_dirname, '$')) |
3127 | { | |
3128 | should_expand_dirname = '$'; | |
3129 | nextch = t[1]; | |
3130 | /* Deliberately does not handle the deprecated $[...] arithmetic | |
3131 | expansion syntax */ | |
3132 | if (nextch == '(') | |
3133 | closer = ')'; | |
3134 | else if (nextch == '{') | |
3135 | closer = '}'; | |
3136 | else | |
3137 | nextch = 0; | |
3138 | } | |
ac50fbac CR |
3139 | else if (local_dirname[0] == '~') |
3140 | should_expand_dirname = '~'; | |
bb70624e JA |
3141 | else |
3142 | { | |
0001803f | 3143 | t = mbschr (local_dirname, '`'); |
bb70624e | 3144 | if (t && unclosed_pair (local_dirname, strlen (local_dirname), "`") == 0) |
16b2d7f4 | 3145 | should_expand_dirname = '`'; |
bb70624e | 3146 | } |
bb70624e | 3147 | |
b80f6443 JA |
3148 | #if defined (HAVE_LSTAT) |
3149 | if (should_expand_dirname && lstat (local_dirname, &sb) == 0) | |
3150 | #else | |
3151 | if (should_expand_dirname && stat (local_dirname, &sb) == 0) | |
3152 | #endif | |
3153 | should_expand_dirname = 0; | |
3154 | ||
bb70624e | 3155 | if (should_expand_dirname) |
726f6388 | 3156 | { |
bb70624e | 3157 | new_dirname = savestring (local_dirname); |
f1be666c | 3158 | wl = expand_prompt_string (new_dirname, 0, W_NOCOMSUB); /* does the right thing */ |
726f6388 JA |
3159 | if (wl) |
3160 | { | |
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); | |
b72432fd | 3166 | free (new_dirname); |
726f6388 JA |
3167 | dispose_words (wl); |
3168 | local_dirname = *dirname; | |
16b2d7f4 CR |
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) | |
3173 | { | |
3174 | int i, j, c; | |
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++) | |
3178 | { | |
3179 | if (c == should_expand_dirname || c == nextch || c == closer) | |
3180 | continue; | |
3181 | custom_filename_quote_characters[j++] = c; | |
3182 | } | |
3183 | custom_filename_quote_characters[j] = '\0'; | |
3184 | rl_filename_quote_characters = custom_filename_quote_characters; | |
ac50fbac | 3185 | set_filename_bstab (rl_filename_quote_characters); |
16b2d7f4 | 3186 | } |
726f6388 JA |
3187 | } |
3188 | else | |
3189 | { | |
b72432fd | 3190 | free (new_dirname); |
726f6388 | 3191 | free (local_dirname); |
f73dda09 | 3192 | *dirname = (char *)xmalloc (1); |
ccc6cda3 | 3193 | **dirname = '\0'; |
726f6388 JA |
3194 | return 1; |
3195 | } | |
3196 | } | |
0628567a JA |
3197 | else |
3198 | { | |
3199 | /* Dequote the filename even if we don't expand it. */ | |
3200 | new_dirname = bash_dequote_filename (local_dirname, rl_completion_quote_character); | |
495aee44 | 3201 | return_value = STREQ (local_dirname, new_dirname) == 0; |
0628567a JA |
3202 | free (local_dirname); |
3203 | local_dirname = *dirname = new_dirname; | |
3204 | } | |
726f6388 | 3205 | |
16b2d7f4 CR |
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? */ | |
3212 | ||
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. */ | |
3185942a | 3217 | if (no_symbolic_links == 0 && (local_dirname[0] != '.' || local_dirname[1])) |
726f6388 JA |
3218 | { |
3219 | char *temp1, *temp2; | |
3220 | int len1, len2; | |
3221 | ||
16b2d7f4 CR |
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 | |
3225 | temp1 = temp2+'/' | |
3226 | That is, | |
3227 | strcmp (temp1, temp2) == 0 | |
3228 | after adding a slash to temp2 below. It should be safe to not | |
3229 | change those. | |
3230 | */ | |
726f6388 JA |
3231 | t = get_working_directory ("symlink-hook"); |
3232 | temp1 = make_absolute (local_dirname, t); | |
3233 | free (t); | |
28ef6c31 | 3234 | temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); |
3185942a | 3235 | |
ac50fbac CR |
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) | |
3185942a JA |
3240 | { |
3241 | temp2 = dirspell (temp1); | |
3242 | if (temp2) | |
3243 | { | |
3244 | free (temp1); | |
3245 | temp1 = temp2; | |
3246 | temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); | |
495aee44 | 3247 | return_value |= temp2 != 0; |
3185942a JA |
3248 | } |
3249 | } | |
ccc6cda3 JA |
3250 | /* If we can't canonicalize, bail. */ |
3251 | if (temp2 == 0) | |
3252 | { | |
3253 | free (temp1); | |
495aee44 | 3254 | return return_value; |
ccc6cda3 | 3255 | } |
726f6388 JA |
3256 | len1 = strlen (temp1); |
3257 | if (temp1[len1 - 1] == '/') | |
28ef6c31 | 3258 | { |
726f6388 | 3259 | len2 = strlen (temp2); |
95732b49 JA |
3260 | if (len2 > 2) /* don't append `/' to `/' or `//' */ |
3261 | { | |
3262 | temp2 = (char *)xrealloc (temp2, len2 + 2); | |
3263 | temp2[len2] = '/'; | |
3264 | temp2[len2 + 1] = '\0'; | |
3265 | } | |
28ef6c31 | 3266 | } |
16b2d7f4 CR |
3267 | |
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; | |
726f6388 JA |
3276 | free (local_dirname); |
3277 | *dirname = temp2; | |
3278 | free (temp1); | |
3279 | } | |
495aee44 | 3280 | |
726f6388 JA |
3281 | return (return_value); |
3282 | } | |
3283 | ||
726f6388 | 3284 | static char **history_completion_array = (char **)NULL; |
ccc6cda3 JA |
3285 | static int harry_size; |
3286 | static int harry_len; | |
726f6388 JA |
3287 | |
3288 | static void | |
3289 | build_history_completion_array () | |
3290 | { | |
ccc6cda3 JA |
3291 | register int i, j; |
3292 | HIST_ENTRY **hlist; | |
3293 | char **tokens; | |
726f6388 JA |
3294 | |
3295 | /* First, clear out the current dynamic history completion list. */ | |
3296 | if (harry_size) | |
3297 | { | |
7117c2d2 | 3298 | strvec_dispose (history_completion_array); |
726f6388 JA |
3299 | history_completion_array = (char **)NULL; |
3300 | harry_size = 0; | |
3301 | harry_len = 0; | |
3302 | } | |
3303 | ||
3304 | /* Next, grovel each line of history, making each shell-sized token | |
3305 | a separate entry in the history_completion_array. */ | |
ccc6cda3 | 3306 | hlist = history_list (); |
726f6388 | 3307 | |
ccc6cda3 JA |
3308 | if (hlist) |
3309 | { | |
3310 | for (i = 0; hlist[i]; i++) | |
0001803f CR |
3311 | ; |
3312 | for ( --i; i >= 0; i--) | |
ccc6cda3 JA |
3313 | { |
3314 | /* Separate each token, and place into an array. */ | |
3315 | tokens = history_tokenize (hlist[i]->line); | |
726f6388 | 3316 | |
ccc6cda3 JA |
3317 | for (j = 0; tokens && tokens[j]; j++) |
3318 | { | |
3319 | if (harry_len + 2 > harry_size) | |
7117c2d2 | 3320 | history_completion_array = strvec_resize (history_completion_array, harry_size += 10); |
726f6388 | 3321 | |
ccc6cda3 JA |
3322 | history_completion_array[harry_len++] = tokens[j]; |
3323 | history_completion_array[harry_len] = (char *)NULL; | |
3324 | } | |
3325 | free (tokens); | |
3326 | } | |
726f6388 | 3327 | |
ccc6cda3 | 3328 | /* Sort the complete list of tokens. */ |
0001803f CR |
3329 | if (dabbrev_expand_active == 0) |
3330 | qsort (history_completion_array, harry_len, sizeof (char *), (QSFUNC *)strvec_strcmp); | |
ccc6cda3 | 3331 | } |
726f6388 JA |
3332 | } |
3333 | ||
3334 | static char * | |
3335 | history_completion_generator (hint_text, state) | |
f73dda09 | 3336 | const char *hint_text; |
726f6388 JA |
3337 | int state; |
3338 | { | |
ccc6cda3 | 3339 | static int local_index, len; |
f73dda09 | 3340 | static const char *text; |
726f6388 JA |
3341 | |
3342 | /* If this is the first call to the generator, then initialize the | |
3343 | list of strings to complete over. */ | |
ccc6cda3 | 3344 | if (state == 0) |
726f6388 | 3345 | { |
0001803f CR |
3346 | if (dabbrev_expand_active) /* This is kind of messy */ |
3347 | rl_completion_suppress_append = 1; | |
726f6388 JA |
3348 | local_index = 0; |
3349 | build_history_completion_array (); | |
3350 | text = hint_text; | |
3351 | len = strlen (text); | |
3352 | } | |
3353 | ||
3354 | while (history_completion_array && history_completion_array[local_index]) | |
3355 | { | |
3356 | if (strncmp (text, history_completion_array[local_index++], len) == 0) | |
3357 | return (savestring (history_completion_array[local_index - 1])); | |
3358 | } | |
3359 | return ((char *)NULL); | |
3360 | } | |
3361 | ||
28ef6c31 | 3362 | static int |
726f6388 JA |
3363 | dynamic_complete_history (count, key) |
3364 | int count, key; | |
3365 | { | |
f73dda09 | 3366 | int r; |
28ef6c31 JA |
3367 | rl_compentry_func_t *orig_func; |
3368 | rl_completion_func_t *orig_attempt_func; | |
495aee44 | 3369 | rl_compignore_func_t *orig_ignore_func; |
726f6388 JA |
3370 | |
3371 | orig_func = rl_completion_entry_function; | |
3372 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3373 | orig_ignore_func = rl_ignore_some_completions_function; |
3185942a | 3374 | |
28ef6c31 JA |
3375 | rl_completion_entry_function = history_completion_generator; |
3376 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
495aee44 | 3377 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 | 3378 | |
7117c2d2 | 3379 | /* XXX - use rl_completion_mode here? */ |
28ef6c31 | 3380 | if (rl_last_func == dynamic_complete_history) |
f73dda09 | 3381 | r = rl_complete_internal ('?'); |
726f6388 | 3382 | else |
f73dda09 | 3383 | r = rl_complete_internal (TAB); |
726f6388 JA |
3384 | |
3385 | rl_completion_entry_function = orig_func; | |
3386 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 CR |
3387 | rl_ignore_some_completions_function = orig_ignore_func; |
3388 | ||
f73dda09 | 3389 | return r; |
726f6388 JA |
3390 | } |
3391 | ||
3185942a JA |
3392 | static int |
3393 | bash_dabbrev_expand (count, key) | |
3394 | int count, key; | |
3395 | { | |
0001803f | 3396 | int r, orig_suppress, orig_sort; |
3185942a JA |
3397 | rl_compentry_func_t *orig_func; |
3398 | rl_completion_func_t *orig_attempt_func; | |
495aee44 | 3399 | rl_compignore_func_t *orig_ignore_func; |
3185942a JA |
3400 | |
3401 | orig_func = rl_menu_completion_entry_function; | |
3402 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3403 | orig_ignore_func = rl_ignore_some_completions_function; |
0001803f CR |
3404 | orig_suppress = rl_completion_suppress_append; |
3405 | orig_sort = rl_sort_completion_matches; | |
3185942a JA |
3406 | |
3407 | rl_menu_completion_entry_function = history_completion_generator; | |
3408 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
495aee44 | 3409 | rl_ignore_some_completions_function = filename_completion_ignore; |
3185942a | 3410 | rl_filename_completion_desired = 0; |
0001803f CR |
3411 | rl_completion_suppress_append = 1; |
3412 | rl_sort_completion_matches = 0; | |
3185942a JA |
3413 | |
3414 | /* XXX - use rl_completion_mode here? */ | |
0001803f | 3415 | dabbrev_expand_active = 1; |
3185942a JA |
3416 | if (rl_last_func == bash_dabbrev_expand) |
3417 | rl_last_func = rl_menu_complete; | |
3418 | r = rl_menu_complete (count, key); | |
0001803f | 3419 | dabbrev_expand_active = 0; |
3185942a JA |
3420 | |
3421 | rl_last_func = bash_dabbrev_expand; | |
3422 | rl_menu_completion_entry_function = orig_func; | |
3423 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 | 3424 | rl_ignore_some_completions_function = orig_ignore_func; |
0001803f CR |
3425 | rl_completion_suppress_append = orig_suppress; |
3426 | rl_sort_completion_matches = orig_sort; | |
3185942a JA |
3427 | |
3428 | return r; | |
3429 | } | |
3430 | ||
726f6388 | 3431 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) |
28ef6c31 | 3432 | static int |
726f6388 JA |
3433 | bash_complete_username (ignore, ignore2) |
3434 | int ignore, ignore2; | |
3435 | { | |
7117c2d2 | 3436 | return bash_complete_username_internal (rl_completion_mode (bash_complete_username)); |
726f6388 JA |
3437 | } |
3438 | ||
28ef6c31 | 3439 | static int |
726f6388 JA |
3440 | bash_possible_username_completions (ignore, ignore2) |
3441 | int ignore, ignore2; | |
3442 | { | |
28ef6c31 | 3443 | return bash_complete_username_internal ('?'); |
726f6388 JA |
3444 | } |
3445 | ||
28ef6c31 | 3446 | static int |
726f6388 JA |
3447 | bash_complete_username_internal (what_to_do) |
3448 | int what_to_do; | |
3449 | { | |
28ef6c31 | 3450 | return bash_specific_completion (what_to_do, rl_username_completion_function); |
726f6388 JA |
3451 | } |
3452 | ||
28ef6c31 | 3453 | static int |
726f6388 JA |
3454 | bash_complete_filename (ignore, ignore2) |
3455 | int ignore, ignore2; | |
3456 | { | |
7117c2d2 | 3457 | return bash_complete_filename_internal (rl_completion_mode (bash_complete_filename)); |
726f6388 JA |
3458 | } |
3459 | ||
28ef6c31 | 3460 | static int |
726f6388 JA |
3461 | bash_possible_filename_completions (ignore, ignore2) |
3462 | int ignore, ignore2; | |
3463 | { | |
28ef6c31 | 3464 | return bash_complete_filename_internal ('?'); |
726f6388 JA |
3465 | } |
3466 | ||
28ef6c31 | 3467 | static int |
726f6388 JA |
3468 | bash_complete_filename_internal (what_to_do) |
3469 | int what_to_do; | |
3470 | { | |
28ef6c31 JA |
3471 | rl_compentry_func_t *orig_func; |
3472 | rl_completion_func_t *orig_attempt_func; | |
3473 | rl_icppfunc_t *orig_dir_func; | |
495aee44 | 3474 | rl_compignore_func_t *orig_ignore_func; |
b80f6443 | 3475 | /*const*/ char *orig_rl_completer_word_break_characters; |
28ef6c31 | 3476 | int r; |
726f6388 JA |
3477 | |
3478 | orig_func = rl_completion_entry_function; | |
3479 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3480 | orig_ignore_func = rl_ignore_some_completions_function; |
726f6388 | 3481 | orig_rl_completer_word_break_characters = rl_completer_word_break_characters; |
16b2d7f4 CR |
3482 | |
3483 | orig_dir_func = save_directory_hook (); | |
3484 | ||
28ef6c31 JA |
3485 | rl_completion_entry_function = rl_filename_completion_function; |
3486 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
495aee44 | 3487 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 JA |
3488 | rl_completer_word_break_characters = " \t\n\"\'"; |
3489 | ||
28ef6c31 | 3490 | r = rl_complete_internal (what_to_do); |
726f6388 JA |
3491 | |
3492 | rl_completion_entry_function = orig_func; | |
3493 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 | 3494 | rl_ignore_some_completions_function = orig_ignore_func; |
726f6388 | 3495 | rl_completer_word_break_characters = orig_rl_completer_word_break_characters; |
28ef6c31 | 3496 | |
16b2d7f4 CR |
3497 | restore_directory_hook (orig_dir_func); |
3498 | ||
28ef6c31 | 3499 | return r; |
726f6388 JA |
3500 | } |
3501 | ||
28ef6c31 | 3502 | static int |
726f6388 JA |
3503 | bash_complete_hostname (ignore, ignore2) |
3504 | int ignore, ignore2; | |
3505 | { | |
7117c2d2 | 3506 | return bash_complete_hostname_internal (rl_completion_mode (bash_complete_hostname)); |
726f6388 JA |
3507 | } |
3508 | ||
28ef6c31 | 3509 | static int |
726f6388 JA |
3510 | bash_possible_hostname_completions (ignore, ignore2) |
3511 | int ignore, ignore2; | |
3512 | { | |
28ef6c31 | 3513 | return bash_complete_hostname_internal ('?'); |
726f6388 JA |
3514 | } |
3515 | ||
28ef6c31 | 3516 | static int |
726f6388 JA |
3517 | bash_complete_variable (ignore, ignore2) |
3518 | int ignore, ignore2; | |
3519 | { | |
7117c2d2 | 3520 | return bash_complete_variable_internal (rl_completion_mode (bash_complete_variable)); |
726f6388 JA |
3521 | } |
3522 | ||
28ef6c31 | 3523 | static int |
726f6388 JA |
3524 | bash_possible_variable_completions (ignore, ignore2) |
3525 | int ignore, ignore2; | |
3526 | { | |
28ef6c31 | 3527 | return bash_complete_variable_internal ('?'); |
726f6388 JA |
3528 | } |
3529 | ||
28ef6c31 | 3530 | static int |
726f6388 JA |
3531 | bash_complete_command (ignore, ignore2) |
3532 | int ignore, ignore2; | |
3533 | { | |
7117c2d2 | 3534 | return bash_complete_command_internal (rl_completion_mode (bash_complete_command)); |
726f6388 JA |
3535 | } |
3536 | ||
28ef6c31 | 3537 | static int |
726f6388 JA |
3538 | bash_possible_command_completions (ignore, ignore2) |
3539 | int ignore, ignore2; | |
3540 | { | |
28ef6c31 | 3541 | return bash_complete_command_internal ('?'); |
726f6388 JA |
3542 | } |
3543 | ||
28ef6c31 | 3544 | static int |
726f6388 JA |
3545 | bash_complete_hostname_internal (what_to_do) |
3546 | int what_to_do; | |
3547 | { | |
28ef6c31 | 3548 | return bash_specific_completion (what_to_do, hostname_completion_function); |
726f6388 JA |
3549 | } |
3550 | ||
28ef6c31 | 3551 | static int |
726f6388 JA |
3552 | bash_complete_variable_internal (what_to_do) |
3553 | int what_to_do; | |
3554 | { | |
28ef6c31 | 3555 | return bash_specific_completion (what_to_do, variable_completion_function); |
726f6388 JA |
3556 | } |
3557 | ||
28ef6c31 | 3558 | static int |
726f6388 JA |
3559 | bash_complete_command_internal (what_to_do) |
3560 | int what_to_do; | |
3561 | { | |
28ef6c31 | 3562 | return bash_specific_completion (what_to_do, command_word_completion_function); |
726f6388 JA |
3563 | } |
3564 | ||
7117c2d2 JA |
3565 | static char *globtext; |
3566 | static char *globorig; | |
3567 | ||
ccc6cda3 JA |
3568 | static char * |
3569 | glob_complete_word (text, state) | |
28ef6c31 | 3570 | const char *text; |
ccc6cda3 JA |
3571 | int state; |
3572 | { | |
3573 | static char **matches = (char **)NULL; | |
3574 | static int ind; | |
7117c2d2 | 3575 | int glen; |
eb873671 | 3576 | char *ret, *ttext; |
ccc6cda3 JA |
3577 | |
3578 | if (state == 0) | |
3579 | { | |
e8ce775d | 3580 | rl_filename_completion_desired = 1; |
7117c2d2 JA |
3581 | FREE (matches); |
3582 | if (globorig != globtext) | |
3583 | FREE (globorig); | |
3584 | FREE (globtext); | |
3585 | ||
eb873671 JA |
3586 | ttext = bash_tilde_expand (text, 0); |
3587 | ||
7117c2d2 JA |
3588 | if (rl_explicit_arg) |
3589 | { | |
eb873671 JA |
3590 | globorig = savestring (ttext); |
3591 | glen = strlen (ttext); | |
7117c2d2 | 3592 | globtext = (char *)xmalloc (glen + 2); |
eb873671 | 3593 | strcpy (globtext, ttext); |
7117c2d2 JA |
3594 | globtext[glen] = '*'; |
3595 | globtext[glen+1] = '\0'; | |
3596 | } | |
3597 | else | |
eb873671 JA |
3598 | globtext = globorig = savestring (ttext); |
3599 | ||
3600 | if (ttext != text) | |
3601 | free (ttext); | |
7117c2d2 JA |
3602 | |
3603 | matches = shell_glob_filename (globtext); | |
ccc6cda3 | 3604 | if (GLOB_FAILED (matches)) |
28ef6c31 | 3605 | matches = (char **)NULL; |
ccc6cda3 JA |
3606 | ind = 0; |
3607 | } | |
3608 | ||
3609 | ret = matches ? matches[ind] : (char *)NULL; | |
3610 | ind++; | |
3611 | return ret; | |
3612 | } | |
3613 | ||
28ef6c31 | 3614 | static int |
ccc6cda3 JA |
3615 | bash_glob_completion_internal (what_to_do) |
3616 | int what_to_do; | |
3617 | { | |
28ef6c31 | 3618 | return bash_specific_completion (what_to_do, glob_complete_word); |
ccc6cda3 JA |
3619 | } |
3620 | ||
7117c2d2 JA |
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. */ | |
3623 | static char * | |
3624 | bash_glob_quote_filename (s, rtype, qcp) | |
3625 | char *s; | |
3626 | int rtype; | |
3627 | char *qcp; | |
3628 | { | |
3629 | if (globorig && qcp && *qcp == '\0' && STREQ (s, globorig)) | |
3630 | return (savestring (s)); | |
3631 | else | |
3632 | return (bash_quote_filename (s, rtype, qcp)); | |
3633 | } | |
3634 | ||
3635 | static int | |
3636 | bash_glob_complete_word (count, key) | |
3637 | int count, key; | |
3638 | { | |
3639 | int r; | |
3640 | rl_quote_func_t *orig_quoting_function; | |
3641 | ||
b80f6443 JA |
3642 | if (rl_editing_mode == EMACS_EDITING_MODE) |
3643 | rl_explicit_arg = 1; /* force `*' append */ | |
7117c2d2 JA |
3644 | orig_quoting_function = rl_filename_quoting_function; |
3645 | rl_filename_quoting_function = bash_glob_quote_filename; | |
3646 | ||
3647 | r = bash_glob_completion_internal (rl_completion_mode (bash_glob_complete_word)); | |
3648 | ||
3649 | rl_filename_quoting_function = orig_quoting_function; | |
3650 | return r; | |
3651 | } | |
3652 | ||
28ef6c31 | 3653 | static int |
ccc6cda3 JA |
3654 | bash_glob_expand_word (count, key) |
3655 | int count, key; | |
3656 | { | |
28ef6c31 | 3657 | return bash_glob_completion_internal ('*'); |
ccc6cda3 JA |
3658 | } |
3659 | ||
28ef6c31 | 3660 | static int |
ccc6cda3 JA |
3661 | bash_glob_list_expansions (count, key) |
3662 | int count, key; | |
3663 | { | |
28ef6c31 | 3664 | return bash_glob_completion_internal ('?'); |
ccc6cda3 JA |
3665 | } |
3666 | ||
28ef6c31 | 3667 | static int |
726f6388 JA |
3668 | bash_specific_completion (what_to_do, generator) |
3669 | int what_to_do; | |
28ef6c31 | 3670 | rl_compentry_func_t *generator; |
726f6388 | 3671 | { |
28ef6c31 JA |
3672 | rl_compentry_func_t *orig_func; |
3673 | rl_completion_func_t *orig_attempt_func; | |
495aee44 | 3674 | rl_compignore_func_t *orig_ignore_func; |
28ef6c31 | 3675 | int r; |
726f6388 JA |
3676 | |
3677 | orig_func = rl_completion_entry_function; | |
3678 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3679 | orig_ignore_func = rl_ignore_some_completions_function; |
726f6388 | 3680 | rl_completion_entry_function = generator; |
28ef6c31 | 3681 | rl_attempted_completion_function = NULL; |
495aee44 | 3682 | rl_ignore_some_completions_function = orig_ignore_func; |
726f6388 | 3683 | |
28ef6c31 | 3684 | r = rl_complete_internal (what_to_do); |
726f6388 JA |
3685 | |
3686 | rl_completion_entry_function = orig_func; | |
3687 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 | 3688 | rl_ignore_some_completions_function = orig_ignore_func; |
28ef6c31 JA |
3689 | |
3690 | return r; | |
726f6388 JA |
3691 | } |
3692 | ||
3693 | #endif /* SPECIFIC_COMPLETION_FUNCTIONS */ | |
ccc6cda3 | 3694 | |
b80f6443 JA |
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). */ | |
3700 | static int | |
3701 | bash_vi_complete (count, key) | |
3702 | int count, key; | |
3703 | { | |
3704 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
3705 | int p, r; | |
3706 | char *t; | |
3707 | ||
3708 | if ((rl_point < rl_end) && (!whitespace (rl_line_buffer[rl_point]))) | |
3709 | { | |
3710 | if (!whitespace (rl_line_buffer[rl_point + 1])) | |
3711 | rl_vi_end_word (1, 'E'); | |
3712 | rl_point++; | |
3713 | } | |
3714 | ||
3715 | /* Find boundaries of current word, according to vi definition of a | |
3716 | `bigword'. */ | |
3717 | t = 0; | |
3718 | if (rl_point > 0) | |
3719 | { | |
3720 | p = rl_point; | |
3721 | rl_vi_bWord (1, 'B'); | |
3722 | r = rl_point; | |
3723 | rl_point = p; | |
3724 | p = r; | |
3725 | ||
3726 | t = substring (rl_line_buffer, p, rl_point); | |
3727 | } | |
3728 | ||
3729 | if (t && glob_pattern_p (t) == 0) | |
3730 | rl_explicit_arg = 1; /* XXX - force glob_complete_word to append `*' */ | |
3731 | FREE (t); | |
3732 | ||
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); | |
3739 | else | |
3740 | r = rl_complete (0, key); | |
3741 | ||
3742 | if (key == '*' || key == '\\') | |
3743 | rl_vi_start_inserting (key, 1, 1); | |
3744 | ||
3745 | return (r); | |
3746 | #else | |
3747 | return rl_vi_complete (count, key); | |
3748 | #endif /* !SPECIFIC_COMPLETION_FUNCTIONS */ | |
3749 | } | |
3750 | #endif /* VI_MODE */ | |
3751 | ||
ccc6cda3 | 3752 | /* Filename quoting for completion. */ |
bb70624e JA |
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. */ | |
ccc6cda3 JA |
3756 | static char * |
3757 | bash_dequote_filename (text, quote_char) | |
3758 | char *text; | |
28ef6c31 | 3759 | int quote_char; |
ccc6cda3 JA |
3760 | { |
3761 | char *ret, *p, *r; | |
3762 | int l, quoted; | |
3763 | ||
3764 | l = strlen (text); | |
f73dda09 | 3765 | ret = (char *)xmalloc (l + 1); |
ccc6cda3 JA |
3766 | for (quoted = quote_char, p = text, r = ret; p && *p; p++) |
3767 | { | |
3185942a | 3768 | /* Allow backslash-escaped characters to pass through unscathed. */ |
ccc6cda3 JA |
3769 | if (*p == '\\') |
3770 | { | |
3185942a JA |
3771 | /* Backslashes are preserved within single quotes. */ |
3772 | if (quoted == '\'') | |
3773 | *r++ = *p; | |
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)) | |
3777 | *r++ = *p; | |
3778 | ||
ccc6cda3 JA |
3779 | *r++ = *++p; |
3780 | if (*p == '\0') | |
0001803f | 3781 | return ret; /* XXX - was break; */ |
ccc6cda3 JA |
3782 | continue; |
3783 | } | |
3784 | /* Close quote. */ | |
3785 | if (quoted && *p == quoted) | |
28ef6c31 JA |
3786 | { |
3787 | quoted = 0; | |
3788 | continue; | |
3789 | } | |
ccc6cda3 JA |
3790 | /* Open quote. */ |
3791 | if (quoted == 0 && (*p == '\'' || *p == '"')) | |
28ef6c31 JA |
3792 | { |
3793 | quoted = *p; | |
3794 | continue; | |
3795 | } | |
ccc6cda3 JA |
3796 | *r++ = *p; |
3797 | } | |
3798 | *r = '\0'; | |
3799 | return ret; | |
3800 | } | |
3801 | ||
d166f048 JA |
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. */ | |
3805 | static char * | |
3806 | quote_word_break_chars (text) | |
3807 | char *text; | |
3808 | { | |
3809 | char *ret, *r, *s; | |
3810 | int l; | |
3811 | ||
3812 | l = strlen (text); | |
f73dda09 | 3813 | ret = (char *)xmalloc ((2 * l) + 1); |
d166f048 JA |
3814 | for (s = text, r = ret; *s; s++) |
3815 | { | |
3816 | /* Pass backslash-quoted characters through, including the backslash. */ | |
3817 | if (*s == '\\') | |
3818 | { | |
3819 | *r++ = '\\'; | |
3820 | *r++ = *++s; | |
3821 | if (*s == '\0') | |
3822 | break; | |
3823 | continue; | |
3824 | } | |
3825 | /* OK, we have an unquoted character. Check its presence in | |
3826 | rl_completer_word_break_characters. */ | |
0001803f | 3827 | if (mbschr (rl_completer_word_break_characters, *s)) |
28ef6c31 | 3828 | *r++ = '\\'; |
3185942a JA |
3829 | /* XXX -- check for standalone tildes here and backslash-quote them */ |
3830 | if (s == text && *s == '~' && file_exists (text)) | |
3831 | *r++ = '\\'; | |
d166f048 JA |
3832 | *r++ = *s; |
3833 | } | |
3834 | *r = '\0'; | |
3835 | return ret; | |
3836 | } | |
3837 | ||
ac50fbac CR |
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 | |
3840 | this file. */ | |
3841 | static void | |
3842 | set_filename_bstab (string) | |
3843 | const char *string; | |
3844 | { | |
3845 | const char *s; | |
3846 | ||
3847 | memset (filename_bstab, 0, sizeof (filename_bstab)); | |
3848 | for (s = string; s && *s; s++) | |
3849 | filename_bstab[*s] = 1; | |
3850 | } | |
3851 | ||
d166f048 JA |
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 | |
7117c2d2 JA |
3856 | quote_word_break_chars on the result. This returns newly-allocated |
3857 | memory. */ | |
ccc6cda3 JA |
3858 | static char * |
3859 | bash_quote_filename (s, rtype, qcp) | |
3860 | char *s; | |
3861 | int rtype; | |
3862 | char *qcp; | |
3863 | { | |
3864 | char *rtext, *mtext, *ret; | |
3865 | int rlen, cs; | |
3866 | ||
3867 | rtext = (char *)NULL; | |
3868 | ||
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. */ | |
3875 | ||
ccc6cda3 JA |
3876 | cs = completion_quoting_style; |
3877 | /* Might need to modify the default completion style based on *qcp, | |
bb70624e JA |
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). */ | |
0001803f | 3883 | if (*qcp == '\0' && cs == COMPLETE_BSQUOTE && mbschr (s, '\n')) |
bb70624e JA |
3884 | cs = COMPLETE_SQUOTE; |
3885 | else if (*qcp == '"') | |
ccc6cda3 JA |
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 && | |
0001803f | 3891 | history_expansion_inhibited == 0 && mbschr (s, '!')) |
ccc6cda3 | 3892 | cs = COMPLETE_BSQUOTE; |
d166f048 JA |
3893 | |
3894 | if (*qcp == '"' && history_expansion && cs == COMPLETE_DQUOTE && | |
0001803f | 3895 | history_expansion_inhibited == 0 && mbschr (s, '!')) |
d166f048 JA |
3896 | { |
3897 | cs = COMPLETE_BSQUOTE; | |
3898 | *qcp = '\0'; | |
3899 | } | |
ccc6cda3 JA |
3900 | #endif |
3901 | ||
95732b49 JA |
3902 | /* Don't tilde-expand backslash-quoted filenames, since only single and |
3903 | double quotes inhibit tilde expansion. */ | |
3904 | mtext = s; | |
3905 | if (mtext[0] == '~' && rtype == SINGLE_MATCH && cs != COMPLETE_BSQUOTE) | |
3906 | mtext = bash_tilde_expand (s, 0); | |
3907 | ||
ccc6cda3 JA |
3908 | switch (cs) |
3909 | { | |
3910 | case COMPLETE_DQUOTE: | |
28ef6c31 | 3911 | rtext = sh_double_quote (mtext); |
ccc6cda3 JA |
3912 | break; |
3913 | case COMPLETE_SQUOTE: | |
28ef6c31 | 3914 | rtext = sh_single_quote (mtext); |
ccc6cda3 JA |
3915 | break; |
3916 | case COMPLETE_BSQUOTE: | |
ac50fbac | 3917 | rtext = sh_backslash_quote (mtext, complete_fullquote ? 0 : filename_bstab, 0); |
ccc6cda3 JA |
3918 | break; |
3919 | } | |
3920 | ||
3921 | if (mtext != s) | |
3922 | free (mtext); | |
3923 | ||
d166f048 JA |
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) | |
3927 | { | |
3928 | mtext = quote_word_break_chars (rtext); | |
3929 | free (rtext); | |
3930 | rtext = mtext; | |
3931 | } | |
3932 | ||
ccc6cda3 JA |
3933 | /* Leave the opening quote intact. The readline completion code takes |
3934 | care of avoiding doubled opening quotes. */ | |
ac50fbac CR |
3935 | if (rtext) |
3936 | { | |
3937 | rlen = strlen (rtext); | |
3938 | ret = (char *)xmalloc (rlen + 1); | |
3939 | strcpy (ret, rtext); | |
3940 | } | |
3941 | else | |
3942 | { | |
3943 | ret = (char *)xmalloc (rlen = 1); | |
3944 | ret[0] = '\0'; | |
3945 | } | |
ccc6cda3 JA |
3946 | |
3947 | /* If there are multiple matches, cut off the closing quote. */ | |
3948 | if (rtype == MULT_MATCH && cs != COMPLETE_BSQUOTE) | |
3949 | ret[rlen - 1] = '\0'; | |
3950 | free (rtext); | |
3951 | return ret; | |
3952 | } | |
3953 | ||
bb70624e JA |
3954 | /* Support for binding readline key sequences to Unix commands. */ |
3955 | static Keymap cmd_xmap; | |
3956 | ||
ac50fbac CR |
3957 | #ifdef _MINIX |
3958 | static void | |
3959 | #else | |
0001803f | 3960 | static int |
ac50fbac | 3961 | #endif |
0001803f CR |
3962 | putx(c) |
3963 | int c; | |
3964 | { | |
495aee44 | 3965 | int x; |
495aee44 | 3966 | x = putc (c, rl_outstream); |
ac50fbac CR |
3967 | #ifndef _MINIX |
3968 | return x; | |
3969 | #endif | |
0001803f CR |
3970 | } |
3971 | ||
bb70624e JA |
3972 | static int |
3973 | bash_execute_unix_command (count, key) | |
3974 | int count; /* ignored */ | |
3975 | int key; | |
3976 | { | |
3977 | Keymap ckmap; /* current keymap */ | |
3978 | Keymap xkmap; /* unix command executing keymap */ | |
ac50fbac CR |
3979 | rl_command_func_t *func; |
3980 | int type; | |
0001803f | 3981 | register int i, r; |
3185942a | 3982 | intmax_t mi; |
b80f6443 | 3983 | sh_parser_state_t ps; |
0001803f | 3984 | char *cmd, *value, *l, *l1, *ce; |
3185942a JA |
3985 | SHELL_VAR *v; |
3986 | char ibuf[INT_STRLEN_BOUND(int) + 1]; | |
bb70624e JA |
3987 | |
3988 | /* First, we need to find the right command to execute. This is tricky, | |
ac50fbac CR |
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); | |
3992 | ||
3993 | if (cmd == 0 || type != ISMACR) | |
bb70624e | 3994 | { |
ac50fbac CR |
3995 | rl_crlf (); |
3996 | internal_error (_("bash_execute_unix_command: cannot find keymap for command")); | |
3997 | rl_forced_update_display (); | |
bb70624e JA |
3998 | return 1; |
3999 | } | |
4000 | ||
0001803f CR |
4001 | ce = rl_get_termcap ("ce"); |
4002 | if (ce) /* clear current line */ | |
4003 | { | |
4004 | fprintf (rl_outstream, "\r"); | |
4005 | tputs (ce, 1, putx); | |
4006 | fflush (rl_outstream); | |
4007 | } | |
4008 | else | |
4009 | rl_crlf (); /* move to a new line */ | |
bb70624e | 4010 | |
3185942a JA |
4011 | v = bind_variable ("READLINE_LINE", rl_line_buffer, 0); |
4012 | if (v) | |
4013 | VSETATTR (v, att_exported); | |
0001803f | 4014 | l = v ? value_cell (v) : 0; |
3185942a JA |
4015 | value = inttostr (rl_point, ibuf, sizeof (ibuf)); |
4016 | v = bind_int_variable ("READLINE_POINT", value); | |
4017 | if (v) | |
4018 | VSETATTR (v, att_exported); | |
4019 | array_needs_making = 1; | |
4020 | ||
b80f6443 | 4021 | save_parser_state (&ps); |
0001803f | 4022 | r = parse_and_execute (cmd, "bash_execute_unix_command", SEVAL_NOHIST|SEVAL_NOFREE); |
3185942a | 4023 | restore_parser_state (&ps); |
7117c2d2 | 4024 | |
3185942a | 4025 | v = find_variable ("READLINE_LINE"); |
0001803f CR |
4026 | l1 = v ? value_cell (v) : 0; |
4027 | if (l1 != l) | |
3185942a JA |
4028 | maybe_make_readline_line (value_cell (v)); |
4029 | v = find_variable ("READLINE_POINT"); | |
4030 | if (v && legal_number (value_cell (v), &mi)) | |
4031 | { | |
4032 | i = mi; | |
89a92869 | 4033 | if (i != rl_point) |
3185942a JA |
4034 | { |
4035 | rl_point = i; | |
4036 | if (rl_point > rl_end) | |
4037 | rl_point = rl_end; | |
4038 | else if (rl_point < 0) | |
4039 | rl_point = 0; | |
4040 | } | |
4041 | } | |
7117c2d2 | 4042 | |
3185942a JA |
4043 | unbind_variable ("READLINE_LINE"); |
4044 | unbind_variable ("READLINE_POINT"); | |
4045 | array_needs_making = 1; | |
bb70624e JA |
4046 | |
4047 | /* and restore the readline buffer and display after command execution. */ | |
4048 | rl_forced_update_display (); | |
4049 | return 0; | |
4050 | } | |
4051 | ||
ac50fbac CR |
4052 | int |
4053 | print_unix_command_map () | |
4054 | { | |
4055 | Keymap save; | |
4056 | ||
4057 | save = rl_get_keymap (); | |
4058 | rl_set_keymap (cmd_xmap); | |
4059 | rl_macro_dumper (1); | |
4060 | rl_set_keymap (save); | |
4061 | return 0; | |
4062 | } | |
4063 | ||
bb70624e JA |
4064 | static void |
4065 | init_unix_command_map () | |
4066 | { | |
4067 | cmd_xmap = rl_make_bare_keymap (); | |
4068 | } | |
4069 | ||
4070 | static int | |
4071 | isolate_sequence (string, ind, need_dquote, startp) | |
4072 | char *string; | |
4073 | int ind, need_dquote, *startp; | |
4074 | { | |
4075 | register int i; | |
4076 | int c, passc, delim; | |
4077 | ||
4078 | for (i = ind; string[i] && whitespace (string[i]); i++) | |
4079 | ; | |
4080 | /* NEED_DQUOTE means that the first non-white character *must* be `"'. */ | |
4081 | if (need_dquote && string[i] != '"') | |
4082 | { | |
b80f6443 | 4083 | builtin_error (_("%s: first non-whitespace character is not `\"'"), string); |
bb70624e JA |
4084 | return -1; |
4085 | } | |
4086 | ||
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; | |
4090 | ||
4091 | if (startp) | |
4092 | *startp = delim ? ++i : i; | |
4093 | ||
4094 | for (passc = 0; c = string[i]; i++) | |
4095 | { | |
4096 | if (passc) | |
4097 | { | |
4098 | passc = 0; | |
4099 | continue; | |
4100 | } | |
4101 | if (c == '\\') | |
4102 | { | |
4103 | passc++; | |
4104 | continue; | |
4105 | } | |
4106 | if (c == delim) | |
28ef6c31 | 4107 | break; |
bb70624e JA |
4108 | } |
4109 | ||
4110 | if (delim && string[i] != delim) | |
4111 | { | |
b80f6443 | 4112 | builtin_error (_("no closing `%c' in %s"), delim, string); |
bb70624e JA |
4113 | return -1; |
4114 | } | |
4115 | ||
4116 | return i; | |
4117 | } | |
4118 | ||
4119 | int | |
4120 | bind_keyseq_to_unix_command (line) | |
4121 | char *line; | |
4122 | { | |
4123 | Keymap kmap; | |
4124 | char *kseq, *value; | |
f73dda09 | 4125 | int i, kstart; |
bb70624e JA |
4126 | |
4127 | if (cmd_xmap == 0) | |
4128 | init_unix_command_map (); | |
4129 | ||
4130 | kmap = rl_get_keymap (); | |
4131 | ||
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); | |
4136 | if (i < 0) | |
4137 | return -1; | |
4138 | ||
4139 | /* Create the key sequence string to pass to rl_generic_bind */ | |
4140 | kseq = substring (line, kstart, i); | |
4141 | ||
4142 | for ( ; line[i] && line[i] != ':'; i++) | |
4143 | ; | |
4144 | if (line[i] != ':') | |
4145 | { | |
b80f6443 | 4146 | builtin_error (_("%s: missing colon separator"), line); |
ac50fbac | 4147 | FREE (kseq); |
bb70624e JA |
4148 | return -1; |
4149 | } | |
4150 | ||
4151 | i = isolate_sequence (line, i + 1, 0, &kstart); | |
4152 | if (i < 0) | |
ac50fbac CR |
4153 | { |
4154 | FREE (kseq); | |
4155 | return -1; | |
4156 | } | |
bb70624e JA |
4157 | |
4158 | /* Create the value string containing the command to execute. */ | |
4159 | value = substring (line, kstart, i); | |
4160 | ||
4161 | /* Save the command to execute and the key sequence in the CMD_XMAP */ | |
4162 | rl_generic_bind (ISMACR, kseq, value, cmd_xmap); | |
4163 | ||
4164 | /* and bind the key sequence in the current keymap to a function that | |
4165 | understands how to execute from CMD_XMAP */ | |
b80f6443 | 4166 | rl_bind_keyseq_in_map (kseq, bash_execute_unix_command, kmap); |
ac50fbac CR |
4167 | |
4168 | free (kseq); | |
bb70624e JA |
4169 | return 0; |
4170 | } | |
4171 | ||
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. */ | |
4175 | char ** | |
4176 | bash_directory_completion_matches (text) | |
28ef6c31 | 4177 | const char *text; |
bb70624e JA |
4178 | { |
4179 | char **m1; | |
4180 | char *dfn; | |
4181 | int qc; | |
4182 | ||
b80f6443 | 4183 | qc = rl_dispatching ? rl_completion_quote_character : 0; |
c6dcdf4d CR |
4184 | /* If rl_completion_found_quote != 0, rl_completion_matches will call the |
4185 | filename dequoting function, causing the directory name to be dequoted | |
4186 | twice. */ | |
4187 | if (rl_dispatching && rl_completion_found_quote == 0) | |
4188 | dfn = bash_dequote_filename ((char *)text, qc); | |
4189 | else | |
4190 | dfn = (char *)text; | |
28ef6c31 | 4191 | m1 = rl_completion_matches (dfn, rl_filename_completion_function); |
c6dcdf4d CR |
4192 | if (dfn != text) |
4193 | free (dfn); | |
bb70624e JA |
4194 | |
4195 | if (m1 == 0 || m1[0] == 0) | |
4196 | return m1; | |
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 | |
4199 | later. */ | |
4200 | (void)bash_ignore_filenames (m1); | |
4201 | return m1; | |
4202 | } | |
b80f6443 JA |
4203 | |
4204 | char * | |
4205 | bash_dequote_text (text) | |
4206 | const char *text; | |
4207 | { | |
4208 | char *dtxt; | |
4209 | int qc; | |
4210 | ||
4211 | qc = (text[0] == '"' || text[0] == '\'') ? text[0] : 0; | |
4212 | dtxt = bash_dequote_filename ((char *)text, qc); | |
4213 | return (dtxt); | |
4214 | } | |
ac50fbac CR |
4215 | |
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 | |
4219 | context. */ | |
4220 | static int | |
4221 | bash_event_hook () | |
4222 | { | |
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, | |
84c617ec CR |
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) | |
ac50fbac CR |
4228 | rl_cleanup_after_signal (); |
4229 | bashline_reset_event_hook (); | |
4230 | check_signals_and_traps (); /* XXX */ | |
4231 | return 0; | |
4232 | } | |
4233 | ||
ccc6cda3 | 4234 | #endif /* READLINE */ |