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Commit | Line | Data |
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726f6388 JA |
1 | /* bashline.c -- Bash's interface to the readline library. */ |
2 | ||
d233b485 | 3 | /* Copyright (C) 1987-2017 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" |
d233b485 | 49 | #include "parser.h" |
726f6388 | 50 | #include "builtins.h" |
726f6388 | 51 | #include "bashhist.h" |
ccc6cda3 | 52 | #include "bashline.h" |
726f6388 | 53 | #include "execute_cmd.h" |
cce855bc | 54 | #include "findcmd.h" |
ccc6cda3 | 55 | #include "pathexp.h" |
3185942a | 56 | #include "shmbutil.h" |
ac50fbac | 57 | #include "trap.h" |
a0c0a00f CR |
58 | #include "flags.h" |
59 | ||
60 | #if defined (HAVE_MBSTR_H) && defined (HAVE_MBSCHR) | |
61 | # include <mbstr.h> /* mbschr */ | |
62 | #endif | |
3185942a | 63 | |
ccc6cda3 | 64 | #include "builtins/common.h" |
3185942a | 65 | |
ccc6cda3 JA |
66 | #include <readline/rlconf.h> |
67 | #include <readline/readline.h> | |
68 | #include <readline/history.h> | |
d233b485 | 69 | #include <readline/rlmbutil.h> |
ccc6cda3 JA |
70 | |
71 | #include <glob/glob.h> | |
726f6388 JA |
72 | |
73 | #if defined (ALIAS) | |
74 | # include "alias.h" | |
75 | #endif | |
76 | ||
bb70624e JA |
77 | #if defined (PROGRAMMABLE_COMPLETION) |
78 | # include "pcomplete.h" | |
79 | #endif | |
80 | ||
7117c2d2 JA |
81 | /* These should agree with the defines for emacs_mode and vi_mode in |
82 | rldefs.h, even though that's not a public readline header file. */ | |
83 | #ifndef EMACS_EDITING_MODE | |
84 | # define NO_EDITING_MODE -1 | |
85 | # define EMACS_EDITING_MODE 1 | |
86 | # define VI_EDITING_MODE 0 | |
87 | #endif | |
88 | ||
3185942a JA |
89 | #define RL_BOOLEAN_VARIABLE_VALUE(s) ((s)[0] == 'o' && (s)[1] == 'n' && (s)[2] == '\0') |
90 | ||
726f6388 | 91 | #if defined (BRACE_COMPLETION) |
28ef6c31 | 92 | extern int bash_brace_completion __P((int, int)); |
726f6388 JA |
93 | #endif /* BRACE_COMPLETION */ |
94 | ||
0001803f | 95 | /* To avoid including curses.h/term.h/termcap.h and that whole mess. */ |
ac50fbac CR |
96 | #ifdef _MINIX |
97 | extern int tputs __P((const char *string, int nlines, void (*outx)(int))); | |
98 | #else | |
0001803f | 99 | extern int tputs __P((const char *string, int nlines, int (*outx)(int))); |
ac50fbac | 100 | #endif |
0001803f | 101 | |
28ef6c31 JA |
102 | /* Forward declarations */ |
103 | ||
726f6388 | 104 | /* Functions bound to keys in Readline for Bash users. */ |
28ef6c31 JA |
105 | static int shell_expand_line __P((int, int)); |
106 | static int display_shell_version __P((int, int)); | |
107 | static int operate_and_get_next __P((int, int)); | |
108 | ||
109 | static int bash_ignore_filenames __P((char **)); | |
110 | static int bash_ignore_everything __P((char **)); | |
111 | ||
cce855bc | 112 | #if defined (BANG_HISTORY) |
f73dda09 | 113 | static char *history_expand_line_internal __P((char *)); |
28ef6c31 JA |
114 | static int history_expand_line __P((int, int)); |
115 | static int tcsh_magic_space __P((int, int)); | |
cce855bc | 116 | #endif /* BANG_HISTORY */ |
d166f048 | 117 | #ifdef ALIAS |
28ef6c31 | 118 | static int alias_expand_line __P((int, int)); |
cce855bc JA |
119 | #endif |
120 | #if defined (BANG_HISTORY) && defined (ALIAS) | |
28ef6c31 | 121 | static int history_and_alias_expand_line __P((int, int)); |
d166f048 | 122 | #endif |
726f6388 | 123 | |
3185942a JA |
124 | static int bash_forward_shellword __P((int, int)); |
125 | static int bash_backward_shellword __P((int, int)); | |
126 | static int bash_kill_shellword __P((int, int)); | |
127 | static int bash_backward_kill_shellword __P((int, int)); | |
128 | ||
726f6388 | 129 | /* Helper functions for Readline. */ |
3185942a | 130 | static char *restore_tilde __P((char *, char *)); |
ac50fbac | 131 | static char *maybe_restore_tilde __P((char *, char *)); |
3185942a | 132 | |
0001803f | 133 | static char *bash_filename_rewrite_hook __P((char *, int)); |
ac50fbac | 134 | |
95732b49 | 135 | static void bash_directory_expansion __P((char **)); |
ac50fbac CR |
136 | static int bash_filename_stat_hook __P((char **)); |
137 | static int bash_command_name_stat_hook __P((char **)); | |
f73dda09 JA |
138 | static int bash_directory_completion_hook __P((char **)); |
139 | static int filename_completion_ignore __P((char **)); | |
28ef6c31 | 140 | static int bash_push_line __P((void)); |
726f6388 | 141 | |
ac50fbac CR |
142 | static int executable_completion __P((const char *, int)); |
143 | ||
16b2d7f4 | 144 | static rl_icppfunc_t *save_directory_hook __P((void)); |
ac50fbac | 145 | static void restore_directory_hook __P((rl_icppfunc_t)); |
16b2d7f4 | 146 | |
4f747edc | 147 | static int directory_exists __P((const char *, int)); |
a0c0a00f | 148 | |
f73dda09 JA |
149 | static void cleanup_expansion_error __P((void)); |
150 | static void maybe_make_readline_line __P((char *)); | |
151 | static void set_up_new_line __P((char *)); | |
152 | ||
153 | static int check_redir __P((int)); | |
28ef6c31 JA |
154 | static char **attempt_shell_completion __P((const char *, int, int)); |
155 | static char *variable_completion_function __P((const char *, int)); | |
156 | static char *hostname_completion_function __P((const char *, int)); | |
157 | static char *command_subst_completion_function __P((const char *, int)); | |
ccc6cda3 | 158 | |
f73dda09 JA |
159 | static void build_history_completion_array __P((void)); |
160 | static char *history_completion_generator __P((const char *, int)); | |
28ef6c31 | 161 | static int dynamic_complete_history __P((int, int)); |
3185942a | 162 | static int bash_dabbrev_expand __P((int, int)); |
726f6388 | 163 | |
f73dda09 | 164 | static void initialize_hostname_list __P((void)); |
28ef6c31 | 165 | static void add_host_name __P((char *)); |
f73dda09 JA |
166 | static void snarf_hosts_from_file __P((char *)); |
167 | static char **hostnames_matching __P((char *)); | |
168 | ||
169 | static void _ignore_completion_names __P((char **, sh_ignore_func_t *)); | |
170 | static int name_is_acceptable __P((const char *)); | |
171 | static int test_for_directory __P((const char *)); | |
172 | static int return_zero __P((const char *)); | |
28ef6c31 JA |
173 | |
174 | static char *bash_dequote_filename __P((char *, int)); | |
f73dda09 | 175 | static char *quote_word_break_chars __P((char *)); |
ac50fbac | 176 | static void set_filename_bstab __P((const char *)); |
28ef6c31 | 177 | static char *bash_quote_filename __P((char *, int, char *)); |
ccc6cda3 | 178 | |
ac50fbac CR |
179 | #ifdef _MINIX |
180 | static void putx __P((int)); | |
181 | #else | |
0001803f | 182 | static int putx __P((int)); |
ac50fbac | 183 | #endif |
f73dda09 JA |
184 | static int bash_execute_unix_command __P((int, int)); |
185 | static void init_unix_command_map __P((void)); | |
186 | static int isolate_sequence __P((char *, int, int, int *)); | |
187 | ||
188 | static int set_saved_history __P((void)); | |
189 | ||
ccc6cda3 | 190 | #if defined (ALIAS) |
28ef6c31 | 191 | static int posix_edit_macros __P((int, int)); |
ccc6cda3 | 192 | #endif |
726f6388 | 193 | |
ac50fbac CR |
194 | static int bash_event_hook __P((void)); |
195 | ||
bb70624e | 196 | #if defined (PROGRAMMABLE_COMPLETION) |
f73dda09 JA |
197 | static int find_cmd_start __P((int)); |
198 | static int find_cmd_end __P((int)); | |
ac50fbac | 199 | static char *find_cmd_name __P((int, int *, int *)); |
f73dda09 JA |
200 | static char *prog_complete_return __P((const char *, int)); |
201 | ||
bb70624e | 202 | static char **prog_complete_matches; |
bb70624e JA |
203 | #endif |
204 | ||
d233b485 | 205 | extern int no_symbolic_links; |
726f6388 | 206 | extern STRING_INT_ALIST word_token_alist[]; |
726f6388 JA |
207 | |
208 | /* SPECIFIC_COMPLETION_FUNCTIONS specifies that we have individual | |
209 | completion functions which indicate what type of completion should be | |
210 | done (at or before point) that can be bound to key sequences with | |
211 | the readline library. */ | |
212 | #define SPECIFIC_COMPLETION_FUNCTIONS | |
213 | ||
214 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
28ef6c31 JA |
215 | static int bash_specific_completion __P((int, rl_compentry_func_t *)); |
216 | ||
217 | static int bash_complete_filename_internal __P((int)); | |
218 | static int bash_complete_username_internal __P((int)); | |
219 | static int bash_complete_hostname_internal __P((int)); | |
220 | static int bash_complete_variable_internal __P((int)); | |
221 | static int bash_complete_command_internal __P((int)); | |
222 | ||
223 | static int bash_complete_filename __P((int, int)); | |
224 | static int bash_possible_filename_completions __P((int, int)); | |
225 | static int bash_complete_username __P((int, int)); | |
226 | static int bash_possible_username_completions __P((int, int)); | |
227 | static int bash_complete_hostname __P((int, int)); | |
228 | static int bash_possible_hostname_completions __P((int, int)); | |
229 | static int bash_complete_variable __P((int, int)); | |
230 | static int bash_possible_variable_completions __P((int, int)); | |
231 | static int bash_complete_command __P((int, int)); | |
232 | static int bash_possible_command_completions __P((int, int)); | |
f73dda09 | 233 | |
4d2e3154 | 234 | static int completion_glob_pattern __P((char *)); |
f73dda09 JA |
235 | static char *glob_complete_word __P((const char *, int)); |
236 | static int bash_glob_completion_internal __P((int)); | |
7117c2d2 | 237 | static int bash_glob_complete_word __P((int, int)); |
f73dda09 JA |
238 | static int bash_glob_expand_word __P((int, int)); |
239 | static int bash_glob_list_expansions __P((int, int)); | |
b80f6443 | 240 | |
726f6388 JA |
241 | #endif /* SPECIFIC_COMPLETION_FUNCTIONS */ |
242 | ||
7117c2d2 | 243 | static int edit_and_execute_command __P((int, int, int, char *)); |
726f6388 | 244 | #if defined (VI_MODE) |
28ef6c31 | 245 | static int vi_edit_and_execute_command __P((int, int)); |
b80f6443 | 246 | static int bash_vi_complete __P((int, int)); |
726f6388 | 247 | #endif |
7117c2d2 | 248 | static int emacs_edit_and_execute_command __P((int, int)); |
726f6388 | 249 | |
ccc6cda3 JA |
250 | /* Non-zero once initalize_readline () has been called. */ |
251 | int bash_readline_initialized = 0; | |
252 | ||
253 | /* If non-zero, we do hostname completion, breaking words at `@' and | |
254 | trying to complete the stuff after the `@' from our own internal | |
255 | host list. */ | |
256 | int perform_hostname_completion = 1; | |
257 | ||
bb70624e JA |
258 | /* If non-zero, we don't do command completion on an empty line. */ |
259 | int no_empty_command_completion; | |
260 | ||
b80f6443 JA |
261 | /* Set FORCE_FIGNORE if you want to honor FIGNORE even if it ignores the |
262 | only possible matches. Set to 0 if you want to match filenames if they | |
263 | are the only possible matches, even if FIGNORE says to. */ | |
264 | int force_fignore = 1; | |
265 | ||
3185942a JA |
266 | /* Perform spelling correction on directory names during word completion */ |
267 | int dircomplete_spelling = 0; | |
268 | ||
16b2d7f4 | 269 | /* Expand directory names during word/filename completion. */ |
ac50fbac CR |
270 | #if DIRCOMPLETE_EXPAND_DEFAULT |
271 | int dircomplete_expand = 1; | |
272 | int dircomplete_expand_relpath = 1; | |
273 | #else | |
16b2d7f4 CR |
274 | int dircomplete_expand = 0; |
275 | int dircomplete_expand_relpath = 0; | |
ac50fbac CR |
276 | #endif |
277 | ||
278 | /* When non-zero, perform `normal' shell quoting on completed filenames | |
279 | even when the completed name contains a directory name with a shell | |
280 | variable referene, so dollar signs in a filename get quoted appropriately. | |
281 | Set to zero to remove dollar sign (and braces or parens as needed) from | |
282 | the set of characters that will be quoted. */ | |
283 | int complete_fullquote = 1; | |
16b2d7f4 | 284 | |
ccc6cda3 JA |
285 | static char *bash_completer_word_break_characters = " \t\n\"'@><=;|&(:"; |
286 | static char *bash_nohostname_word_break_characters = " \t\n\"'><=;|&(:"; | |
b80f6443 | 287 | /* )) */ |
ccc6cda3 | 288 | |
16b2d7f4 CR |
289 | static const char *default_filename_quote_characters = " \t\n\\\"'@<>=;|&()#$`?*[!:{~"; /*}*/ |
290 | static char *custom_filename_quote_characters = 0; | |
ac50fbac | 291 | static char filename_bstab[256]; |
16b2d7f4 | 292 | |
28ef6c31 | 293 | static rl_hook_func_t *old_rl_startup_hook = (rl_hook_func_t *)NULL; |
726f6388 | 294 | |
95732b49 JA |
295 | static int dot_in_path = 0; |
296 | ||
0001803f CR |
297 | /* Set to non-zero when dabbrev-expand is running */ |
298 | static int dabbrev_expand_active = 0; | |
299 | ||
ccc6cda3 JA |
300 | /* What kind of quoting is performed by bash_quote_filename: |
301 | COMPLETE_DQUOTE = double-quoting the filename | |
302 | COMPLETE_SQUOTE = single_quoting the filename | |
303 | COMPLETE_BSQUOTE = backslash-quoting special chars in the filename | |
304 | */ | |
305 | #define COMPLETE_DQUOTE 1 | |
306 | #define COMPLETE_SQUOTE 2 | |
307 | #define COMPLETE_BSQUOTE 3 | |
308 | static int completion_quoting_style = COMPLETE_BSQUOTE; | |
309 | ||
0628567a JA |
310 | /* Flag values for the final argument to bash_default_completion */ |
311 | #define DEFCOMP_CMDPOS 1 | |
312 | ||
726f6388 JA |
313 | /* Change the readline VI-mode keymaps into or out of Posix.2 compliance. |
314 | Called when the shell is put into or out of `posix' mode. */ | |
315 | void | |
316 | posix_readline_initialize (on_or_off) | |
317 | int on_or_off; | |
318 | { | |
ccc6cda3 JA |
319 | if (on_or_off) |
320 | rl_variable_bind ("comment-begin", "#"); | |
726f6388 | 321 | #if defined (VI_MODE) |
7117c2d2 | 322 | rl_bind_key_in_map (CTRL ('I'), on_or_off ? rl_insert : rl_complete, vi_insertion_keymap); |
ccc6cda3 JA |
323 | #endif |
324 | } | |
325 | ||
3185942a JA |
326 | void |
327 | reset_completer_word_break_chars () | |
328 | { | |
329 | rl_completer_word_break_characters = perform_hostname_completion ? savestring (bash_completer_word_break_characters) : savestring (bash_nohostname_word_break_characters); | |
330 | } | |
331 | ||
b80f6443 JA |
332 | /* When this function returns, rl_completer_word_break_characters points to |
333 | dynamically allocated memory. */ | |
f73dda09 | 334 | int |
ccc6cda3 JA |
335 | enable_hostname_completion (on_or_off) |
336 | int on_or_off; | |
337 | { | |
f73dda09 | 338 | int old_value; |
b80f6443 | 339 | char *at, *nv, *nval; |
f73dda09 JA |
340 | |
341 | old_value = perform_hostname_completion; | |
342 | ||
726f6388 JA |
343 | if (on_or_off) |
344 | { | |
ccc6cda3 JA |
345 | perform_hostname_completion = 1; |
346 | rl_special_prefixes = "$@"; | |
726f6388 JA |
347 | } |
348 | else | |
ccc6cda3 JA |
349 | { |
350 | perform_hostname_completion = 0; | |
351 | rl_special_prefixes = "$"; | |
b80f6443 JA |
352 | } |
353 | ||
354 | /* Now we need to figure out how to appropriately modify and assign | |
355 | rl_completer_word_break_characters depending on whether we want | |
356 | hostname completion on or off. */ | |
357 | ||
358 | /* If this is the first time this has been called | |
359 | (bash_readline_initialized == 0), use the sames values as before, but | |
360 | allocate new memory for rl_completer_word_break_characters. */ | |
361 | ||
362 | if (bash_readline_initialized == 0 && | |
363 | (rl_completer_word_break_characters == 0 || | |
364 | rl_completer_word_break_characters == rl_basic_word_break_characters)) | |
365 | { | |
366 | if (on_or_off) | |
367 | rl_completer_word_break_characters = savestring (bash_completer_word_break_characters); | |
368 | else | |
369 | rl_completer_word_break_characters = savestring (bash_nohostname_word_break_characters); | |
370 | } | |
371 | else | |
372 | { | |
373 | /* See if we have anything to do. */ | |
374 | at = strchr (rl_completer_word_break_characters, '@'); | |
375 | if ((at == 0 && on_or_off == 0) || (at != 0 && on_or_off != 0)) | |
eb873671 | 376 | return old_value; |
b80f6443 JA |
377 | |
378 | /* We have something to do. Do it. */ | |
379 | nval = (char *)xmalloc (strlen (rl_completer_word_break_characters) + 1 + on_or_off); | |
380 | ||
381 | if (on_or_off == 0) | |
382 | { | |
383 | /* Turn it off -- just remove `@' from word break chars. We want | |
384 | to remove all occurrences of `@' from the char list, so we loop | |
385 | rather than just copy the rest of the list over AT. */ | |
386 | for (nv = nval, at = rl_completer_word_break_characters; *at; ) | |
387 | if (*at != '@') | |
388 | *nv++ = *at++; | |
389 | else | |
390 | at++; | |
391 | *nv = '\0'; | |
392 | } | |
393 | else | |
394 | { | |
395 | nval[0] = '@'; | |
396 | strcpy (nval + 1, rl_completer_word_break_characters); | |
397 | } | |
398 | ||
399 | free (rl_completer_word_break_characters); | |
400 | rl_completer_word_break_characters = nval; | |
ccc6cda3 | 401 | } |
f73dda09 JA |
402 | |
403 | return (old_value); | |
ccc6cda3 | 404 | } |
726f6388 JA |
405 | |
406 | /* Called once from parse.y if we are going to use readline. */ | |
407 | void | |
408 | initialize_readline () | |
409 | { | |
b80f6443 JA |
410 | rl_command_func_t *func; |
411 | char kseq[2]; | |
412 | ||
726f6388 JA |
413 | if (bash_readline_initialized) |
414 | return; | |
415 | ||
416 | rl_terminal_name = get_string_value ("TERM"); | |
417 | rl_instream = stdin; | |
418 | rl_outstream = stderr; | |
726f6388 JA |
419 | |
420 | /* Allow conditional parsing of the ~/.inputrc file. */ | |
421 | rl_readline_name = "Bash"; | |
422 | ||
28ef6c31 JA |
423 | /* Add bindable names before calling rl_initialize so they may be |
424 | referenced in the various inputrc files. */ | |
425 | rl_add_defun ("shell-expand-line", shell_expand_line, -1); | |
cce855bc | 426 | #ifdef BANG_HISTORY |
28ef6c31 JA |
427 | rl_add_defun ("history-expand-line", history_expand_line, -1); |
428 | rl_add_defun ("magic-space", tcsh_magic_space, -1); | |
cce855bc JA |
429 | #endif |
430 | ||
3185942a JA |
431 | rl_add_defun ("shell-forward-word", bash_forward_shellword, -1); |
432 | rl_add_defun ("shell-backward-word", bash_backward_shellword, -1); | |
433 | rl_add_defun ("shell-kill-word", bash_kill_shellword, -1); | |
434 | rl_add_defun ("shell-backward-kill-word", bash_backward_kill_shellword, -1); | |
435 | ||
d166f048 | 436 | #ifdef ALIAS |
28ef6c31 | 437 | rl_add_defun ("alias-expand-line", alias_expand_line, -1); |
bc4cd23c | 438 | # ifdef BANG_HISTORY |
28ef6c31 | 439 | rl_add_defun ("history-and-alias-expand-line", history_and_alias_expand_line, -1); |
bc4cd23c | 440 | # endif |
d166f048 JA |
441 | #endif |
442 | ||
726f6388 JA |
443 | /* Backwards compatibility. */ |
444 | rl_add_defun ("insert-last-argument", rl_yank_last_arg, -1); | |
445 | ||
28ef6c31 JA |
446 | rl_add_defun ("operate-and-get-next", operate_and_get_next, -1); |
447 | rl_add_defun ("display-shell-version", display_shell_version, -1); | |
7117c2d2 | 448 | rl_add_defun ("edit-and-execute-command", emacs_edit_and_execute_command, -1); |
28ef6c31 JA |
449 | |
450 | #if defined (BRACE_COMPLETION) | |
451 | rl_add_defun ("complete-into-braces", bash_brace_completion, -1); | |
452 | #endif | |
453 | ||
454 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
455 | rl_add_defun ("complete-filename", bash_complete_filename, -1); | |
456 | rl_add_defun ("possible-filename-completions", bash_possible_filename_completions, -1); | |
457 | rl_add_defun ("complete-username", bash_complete_username, -1); | |
458 | rl_add_defun ("possible-username-completions", bash_possible_username_completions, -1); | |
459 | rl_add_defun ("complete-hostname", bash_complete_hostname, -1); | |
460 | rl_add_defun ("possible-hostname-completions", bash_possible_hostname_completions, -1); | |
461 | rl_add_defun ("complete-variable", bash_complete_variable, -1); | |
462 | rl_add_defun ("possible-variable-completions", bash_possible_variable_completions, -1); | |
463 | rl_add_defun ("complete-command", bash_complete_command, -1); | |
464 | rl_add_defun ("possible-command-completions", bash_possible_command_completions, -1); | |
7117c2d2 | 465 | rl_add_defun ("glob-complete-word", bash_glob_complete_word, -1); |
28ef6c31 JA |
466 | rl_add_defun ("glob-expand-word", bash_glob_expand_word, -1); |
467 | rl_add_defun ("glob-list-expansions", bash_glob_list_expansions, -1); | |
468 | #endif | |
469 | ||
470 | rl_add_defun ("dynamic-complete-history", dynamic_complete_history, -1); | |
3185942a | 471 | rl_add_defun ("dabbrev-expand", bash_dabbrev_expand, -1); |
726f6388 | 472 | |
28ef6c31 JA |
473 | /* Bind defaults before binding our custom shell keybindings. */ |
474 | if (RL_ISSTATE(RL_STATE_INITIALIZED) == 0) | |
475 | rl_initialize (); | |
476 | ||
477 | /* Bind up our special shell functions. */ | |
b80f6443 | 478 | rl_bind_key_if_unbound_in_map (CTRL('E'), shell_expand_line, emacs_meta_keymap); |
28ef6c31 | 479 | |
28ef6c31 | 480 | #ifdef BANG_HISTORY |
b80f6443 | 481 | rl_bind_key_if_unbound_in_map ('^', history_expand_line, emacs_meta_keymap); |
28ef6c31 JA |
482 | #endif |
483 | ||
b80f6443 JA |
484 | rl_bind_key_if_unbound_in_map (CTRL ('O'), operate_and_get_next, emacs_standard_keymap); |
485 | rl_bind_key_if_unbound_in_map (CTRL ('V'), display_shell_version, emacs_ctlx_keymap); | |
726f6388 JA |
486 | |
487 | /* In Bash, the user can switch editing modes with "set -o [vi emacs]", | |
488 | so it is not necessary to allow C-M-j for context switching. Turn | |
489 | off this occasionally confusing behaviour. */ | |
b80f6443 JA |
490 | kseq[0] = CTRL('J'); |
491 | kseq[1] = '\0'; | |
492 | func = rl_function_of_keyseq (kseq, emacs_meta_keymap, (int *)NULL); | |
493 | if (func == rl_vi_editing_mode) | |
494 | rl_unbind_key_in_map (CTRL('J'), emacs_meta_keymap); | |
495 | kseq[0] = CTRL('M'); | |
496 | func = rl_function_of_keyseq (kseq, emacs_meta_keymap, (int *)NULL); | |
497 | if (func == rl_vi_editing_mode) | |
498 | rl_unbind_key_in_map (CTRL('M'), emacs_meta_keymap); | |
726f6388 JA |
499 | #if defined (VI_MODE) |
500 | rl_unbind_key_in_map (CTRL('E'), vi_movement_keymap); | |
501 | #endif | |
ccc6cda3 | 502 | |
726f6388 | 503 | #if defined (BRACE_COMPLETION) |
b80f6443 | 504 | rl_bind_key_if_unbound_in_map ('{', bash_brace_completion, emacs_meta_keymap); /*}*/ |
726f6388 JA |
505 | #endif /* BRACE_COMPLETION */ |
506 | ||
507 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
b80f6443 JA |
508 | rl_bind_key_if_unbound_in_map ('/', bash_complete_filename, emacs_meta_keymap); |
509 | rl_bind_key_if_unbound_in_map ('/', bash_possible_filename_completions, emacs_ctlx_keymap); | |
28ef6c31 | 510 | |
b80f6443 JA |
511 | /* Have to jump through hoops here because there is a default binding for |
512 | M-~ (rl_tilde_expand) */ | |
513 | kseq[0] = '~'; | |
514 | kseq[1] = '\0'; | |
515 | func = rl_function_of_keyseq (kseq, emacs_meta_keymap, (int *)NULL); | |
516 | if (func == 0 || func == rl_tilde_expand) | |
517 | rl_bind_keyseq_in_map (kseq, bash_complete_username, emacs_meta_keymap); | |
28ef6c31 | 518 | |
b80f6443 | 519 | rl_bind_key_if_unbound_in_map ('~', bash_possible_username_completions, emacs_ctlx_keymap); |
28ef6c31 | 520 | |
b80f6443 JA |
521 | rl_bind_key_if_unbound_in_map ('@', bash_complete_hostname, emacs_meta_keymap); |
522 | rl_bind_key_if_unbound_in_map ('@', bash_possible_hostname_completions, emacs_ctlx_keymap); | |
28ef6c31 | 523 | |
b80f6443 JA |
524 | rl_bind_key_if_unbound_in_map ('$', bash_complete_variable, emacs_meta_keymap); |
525 | rl_bind_key_if_unbound_in_map ('$', bash_possible_variable_completions, emacs_ctlx_keymap); | |
28ef6c31 | 526 | |
b80f6443 JA |
527 | rl_bind_key_if_unbound_in_map ('!', bash_complete_command, emacs_meta_keymap); |
528 | rl_bind_key_if_unbound_in_map ('!', bash_possible_command_completions, emacs_ctlx_keymap); | |
529 | ||
530 | rl_bind_key_if_unbound_in_map ('g', bash_glob_complete_word, emacs_meta_keymap); | |
531 | rl_bind_key_if_unbound_in_map ('*', bash_glob_expand_word, emacs_ctlx_keymap); | |
532 | rl_bind_key_if_unbound_in_map ('g', bash_glob_list_expansions, emacs_ctlx_keymap); | |
726f6388 JA |
533 | |
534 | #endif /* SPECIFIC_COMPLETION_FUNCTIONS */ | |
535 | ||
95732b49 JA |
536 | kseq[0] = TAB; |
537 | kseq[1] = '\0'; | |
538 | func = rl_function_of_keyseq (kseq, emacs_meta_keymap, (int *)NULL); | |
539 | if (func == 0 || func == rl_tab_insert) | |
540 | rl_bind_key_in_map (TAB, dynamic_complete_history, emacs_meta_keymap); | |
726f6388 JA |
541 | |
542 | /* Tell the completer that we want a crack first. */ | |
28ef6c31 | 543 | rl_attempted_completion_function = attempt_shell_completion; |
726f6388 JA |
544 | |
545 | /* Tell the completer that we might want to follow symbolic links or | |
546 | do other expansion on directory names. */ | |
16b2d7f4 | 547 | set_directory_hook (); |
726f6388 | 548 | |
0001803f CR |
549 | rl_filename_rewrite_hook = bash_filename_rewrite_hook; |
550 | ||
ac50fbac CR |
551 | rl_filename_stat_hook = bash_filename_stat_hook; |
552 | ||
726f6388 | 553 | /* Tell the filename completer we want a chance to ignore some names. */ |
28ef6c31 | 554 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 | 555 | |
7117c2d2 | 556 | /* Bind C-xC-e to invoke emacs and run result as commands. */ |
b80f6443 | 557 | rl_bind_key_if_unbound_in_map (CTRL ('E'), emacs_edit_and_execute_command, emacs_ctlx_keymap); |
726f6388 | 558 | #if defined (VI_MODE) |
b80f6443 | 559 | rl_bind_key_if_unbound_in_map ('v', vi_edit_and_execute_command, vi_movement_keymap); |
ccc6cda3 | 560 | # if defined (ALIAS) |
b80f6443 | 561 | rl_bind_key_if_unbound_in_map ('@', posix_edit_macros, vi_movement_keymap); |
ccc6cda3 | 562 | # endif |
b80f6443 JA |
563 | |
564 | rl_bind_key_in_map ('\\', bash_vi_complete, vi_movement_keymap); | |
565 | rl_bind_key_in_map ('*', bash_vi_complete, vi_movement_keymap); | |
566 | rl_bind_key_in_map ('=', bash_vi_complete, vi_movement_keymap); | |
726f6388 JA |
567 | #endif |
568 | ||
569 | rl_completer_quote_characters = "'\""; | |
ccc6cda3 JA |
570 | |
571 | /* This sets rl_completer_word_break_characters and rl_special_prefixes | |
572 | to the appropriate values, depending on whether or not hostname | |
573 | completion is enabled. */ | |
574 | enable_hostname_completion (perform_hostname_completion); | |
575 | ||
576 | /* characters that need to be quoted when appearing in filenames. */ | |
16b2d7f4 | 577 | rl_filename_quote_characters = default_filename_quote_characters; |
ac50fbac | 578 | set_filename_bstab (rl_filename_quote_characters); |
495aee44 | 579 | |
ccc6cda3 JA |
580 | rl_filename_quoting_function = bash_quote_filename; |
581 | rl_filename_dequoting_function = bash_dequote_filename; | |
582 | rl_char_is_quoted_p = char_is_quoted; | |
726f6388 | 583 | |
7117c2d2 JA |
584 | #if 0 |
585 | /* This is superfluous and makes it impossible to use tab completion in | |
586 | vi mode even when explicitly binding it in ~/.inputrc. sv_strict_posix() | |
587 | should already have called posix_readline_initialize() when | |
588 | posixly_correct was set. */ | |
726f6388 JA |
589 | if (posixly_correct) |
590 | posix_readline_initialize (1); | |
7117c2d2 | 591 | #endif |
726f6388 JA |
592 | |
593 | bash_readline_initialized = 1; | |
594 | } | |
595 | ||
3185942a JA |
596 | void |
597 | bashline_reinitialize () | |
598 | { | |
599 | bash_readline_initialized = 0; | |
600 | } | |
601 | ||
ac50fbac CR |
602 | void |
603 | bashline_set_event_hook () | |
604 | { | |
605 | rl_signal_event_hook = bash_event_hook; | |
606 | } | |
607 | ||
608 | void | |
609 | bashline_reset_event_hook () | |
610 | { | |
611 | rl_signal_event_hook = 0; | |
612 | } | |
613 | ||
726f6388 JA |
614 | /* On Sun systems at least, rl_attempted_completion_function can end up |
615 | getting set to NULL, and rl_completion_entry_function set to do command | |
616 | word completion if Bash is interrupted while trying to complete a command | |
617 | word. This just resets all the completion functions to the right thing. | |
618 | It's called from throw_to_top_level(). */ | |
619 | void | |
3185942a | 620 | bashline_reset () |
726f6388 JA |
621 | { |
622 | tilde_initialize (); | |
623 | rl_attempted_completion_function = attempt_shell_completion; | |
28ef6c31 | 624 | rl_completion_entry_function = NULL; |
28ef6c31 | 625 | rl_ignore_some_completions_function = filename_completion_ignore; |
16b2d7f4 | 626 | rl_filename_quote_characters = default_filename_quote_characters; |
ac50fbac | 627 | set_filename_bstab (rl_filename_quote_characters); |
16b2d7f4 CR |
628 | |
629 | set_directory_hook (); | |
ac50fbac CR |
630 | rl_filename_stat_hook = bash_filename_stat_hook; |
631 | ||
632 | bashline_reset_event_hook (); | |
a0c0a00f CR |
633 | |
634 | rl_sort_completion_matches = 1; | |
726f6388 JA |
635 | } |
636 | ||
637 | /* Contains the line to push into readline. */ | |
638 | static char *push_to_readline = (char *)NULL; | |
639 | ||
640 | /* Push the contents of push_to_readline into the | |
641 | readline buffer. */ | |
28ef6c31 | 642 | static int |
726f6388 JA |
643 | bash_push_line () |
644 | { | |
645 | if (push_to_readline) | |
646 | { | |
647 | rl_insert_text (push_to_readline); | |
648 | free (push_to_readline); | |
649 | push_to_readline = (char *)NULL; | |
650 | rl_startup_hook = old_rl_startup_hook; | |
651 | } | |
28ef6c31 | 652 | return 0; |
726f6388 JA |
653 | } |
654 | ||
655 | /* Call this to set the initial text for the next line to read | |
656 | from readline. */ | |
657 | int | |
658 | bash_re_edit (line) | |
659 | char *line; | |
660 | { | |
ccc6cda3 | 661 | FREE (push_to_readline); |
726f6388 JA |
662 | |
663 | push_to_readline = savestring (line); | |
664 | old_rl_startup_hook = rl_startup_hook; | |
28ef6c31 | 665 | rl_startup_hook = bash_push_line; |
726f6388 JA |
666 | |
667 | return (0); | |
668 | } | |
669 | ||
28ef6c31 | 670 | static int |
726f6388 JA |
671 | display_shell_version (count, c) |
672 | int count, c; | |
673 | { | |
28ef6c31 | 674 | rl_crlf (); |
ccc6cda3 | 675 | show_shell_version (0); |
726f6388 JA |
676 | putc ('\r', rl_outstream); |
677 | fflush (rl_outstream); | |
678 | rl_on_new_line (); | |
679 | rl_redisplay (); | |
28ef6c31 | 680 | return 0; |
726f6388 JA |
681 | } |
682 | ||
683 | /* **************************************************************** */ | |
684 | /* */ | |
685 | /* Readline Stuff */ | |
686 | /* */ | |
687 | /* **************************************************************** */ | |
688 | ||
689 | /* If the user requests hostname completion, then simply build a list | |
bb70624e JA |
690 | of hosts, and complete from that forever more, or at least until |
691 | HOSTFILE is unset. */ | |
726f6388 | 692 | |
bb70624e | 693 | /* THIS SHOULD BE A STRINGLIST. */ |
726f6388 JA |
694 | /* The kept list of hostnames. */ |
695 | static char **hostname_list = (char **)NULL; | |
696 | ||
697 | /* The physical size of the above list. */ | |
ccc6cda3 | 698 | static int hostname_list_size; |
726f6388 | 699 | |
ccc6cda3 JA |
700 | /* The number of hostnames in the above list. */ |
701 | static int hostname_list_length; | |
726f6388 JA |
702 | |
703 | /* Whether or not HOSTNAME_LIST has been initialized. */ | |
704 | int hostname_list_initialized = 0; | |
705 | ||
726f6388 JA |
706 | /* Initialize the hostname completion table. */ |
707 | static void | |
708 | initialize_hostname_list () | |
709 | { | |
710 | char *temp; | |
711 | ||
712 | temp = get_string_value ("HOSTFILE"); | |
ccc6cda3 | 713 | if (temp == 0) |
726f6388 | 714 | temp = get_string_value ("hostname_completion_file"); |
ccc6cda3 JA |
715 | if (temp == 0) |
716 | temp = DEFAULT_HOSTS_FILE; | |
726f6388 JA |
717 | |
718 | snarf_hosts_from_file (temp); | |
726f6388 JA |
719 | |
720 | if (hostname_list) | |
721 | hostname_list_initialized++; | |
722 | } | |
723 | ||
724 | /* Add NAME to the list of hosts. */ | |
725 | static void | |
726 | add_host_name (name) | |
727 | char *name; | |
728 | { | |
729 | if (hostname_list_length + 2 > hostname_list_size) | |
730 | { | |
ccc6cda3 | 731 | hostname_list_size = (hostname_list_size + 32) - (hostname_list_size % 32); |
7117c2d2 | 732 | hostname_list = strvec_resize (hostname_list, hostname_list_size); |
726f6388 JA |
733 | } |
734 | ||
ccc6cda3 JA |
735 | hostname_list[hostname_list_length++] = savestring (name); |
736 | hostname_list[hostname_list_length] = (char *)NULL; | |
726f6388 JA |
737 | } |
738 | ||
739 | #define cr_whitespace(c) ((c) == '\r' || (c) == '\n' || whitespace(c)) | |
740 | ||
741 | static void | |
742 | snarf_hosts_from_file (filename) | |
743 | char *filename; | |
744 | { | |
ccc6cda3 | 745 | FILE *file; |
726f6388 JA |
746 | char *temp, buffer[256], name[256]; |
747 | register int i, start; | |
748 | ||
ccc6cda3 JA |
749 | file = fopen (filename, "r"); |
750 | if (file == 0) | |
726f6388 JA |
751 | return; |
752 | ||
753 | while (temp = fgets (buffer, 255, file)) | |
754 | { | |
755 | /* Skip to first character. */ | |
ccc6cda3 JA |
756 | for (i = 0; buffer[i] && cr_whitespace (buffer[i]); i++) |
757 | ; | |
726f6388 | 758 | |
ccc6cda3 JA |
759 | /* If comment or blank line, ignore. */ |
760 | if (buffer[i] == '\0' || buffer[i] == '#') | |
726f6388 JA |
761 | continue; |
762 | ||
763 | /* If `preprocessor' directive, do the include. */ | |
ccc6cda3 | 764 | if (strncmp (buffer + i, "$include ", 9) == 0) |
726f6388 | 765 | { |
ccc6cda3 | 766 | char *incfile, *t; |
726f6388 JA |
767 | |
768 | /* Find start of filename. */ | |
ccc6cda3 JA |
769 | for (incfile = buffer + i + 9; *incfile && whitespace (*incfile); incfile++) |
770 | ; | |
726f6388 JA |
771 | |
772 | /* Find end of filename. */ | |
ccc6cda3 JA |
773 | for (t = incfile; *t && cr_whitespace (*t) == 0; t++) |
774 | ; | |
726f6388 JA |
775 | |
776 | *t = '\0'; | |
777 | ||
ccc6cda3 | 778 | snarf_hosts_from_file (incfile); |
726f6388 JA |
779 | continue; |
780 | } | |
781 | ||
ccc6cda3 | 782 | /* Skip internet address if present. */ |
f73dda09 | 783 | if (DIGIT (buffer[i])) |
ccc6cda3 | 784 | for (; buffer[i] && cr_whitespace (buffer[i]) == 0; i++); |
726f6388 JA |
785 | |
786 | /* Gobble up names. Each name is separated with whitespace. */ | |
ccc6cda3 | 787 | while (buffer[i]) |
726f6388 | 788 | { |
ccc6cda3 JA |
789 | for (; cr_whitespace (buffer[i]); i++) |
790 | ; | |
791 | if (buffer[i] == '\0' || buffer[i] == '#') | |
792 | break; | |
793 | ||
794 | /* Isolate the current word. */ | |
795 | for (start = i; buffer[i] && cr_whitespace (buffer[i]) == 0; i++) | |
796 | ; | |
797 | if (i == start) | |
726f6388 JA |
798 | continue; |
799 | strncpy (name, buffer + start, i - start); | |
800 | name[i - start] = '\0'; | |
801 | add_host_name (name); | |
802 | } | |
803 | } | |
804 | fclose (file); | |
805 | } | |
806 | ||
bb70624e JA |
807 | /* Return the hostname list. */ |
808 | char ** | |
809 | get_hostname_list () | |
810 | { | |
811 | if (hostname_list_initialized == 0) | |
812 | initialize_hostname_list (); | |
813 | return (hostname_list); | |
814 | } | |
815 | ||
816 | void | |
817 | clear_hostname_list () | |
818 | { | |
819 | register int i; | |
820 | ||
821 | if (hostname_list_initialized == 0) | |
822 | return; | |
823 | for (i = 0; i < hostname_list_length; i++) | |
824 | free (hostname_list[i]); | |
0001803f | 825 | hostname_list_length = hostname_list_initialized = 0; |
bb70624e JA |
826 | } |
827 | ||
726f6388 | 828 | /* Return a NULL terminated list of hostnames which begin with TEXT. |
ac50fbac | 829 | Initialize the hostname list the first time if necessary. |
726f6388 JA |
830 | The array is malloc ()'ed, but not the individual strings. */ |
831 | static char ** | |
832 | hostnames_matching (text) | |
833 | char *text; | |
834 | { | |
ccc6cda3 JA |
835 | register int i, len, nmatch, rsize; |
836 | char **result; | |
726f6388 | 837 | |
ccc6cda3 JA |
838 | if (hostname_list_initialized == 0) |
839 | initialize_hostname_list (); | |
726f6388 | 840 | |
ccc6cda3 JA |
841 | if (hostname_list_initialized == 0) |
842 | return ((char **)NULL); | |
726f6388 JA |
843 | |
844 | /* Special case. If TEXT consists of nothing, then the whole list is | |
845 | what is desired. */ | |
ccc6cda3 | 846 | if (*text == '\0') |
726f6388 | 847 | { |
7117c2d2 | 848 | result = strvec_create (1 + hostname_list_length); |
726f6388 JA |
849 | for (i = 0; i < hostname_list_length; i++) |
850 | result[i] = hostname_list[i]; | |
851 | result[i] = (char *)NULL; | |
852 | return (result); | |
853 | } | |
854 | ||
855 | /* Scan until found, or failure. */ | |
ccc6cda3 JA |
856 | len = strlen (text); |
857 | result = (char **)NULL; | |
858 | for (i = nmatch = rsize = 0; i < hostname_list_length; i++) | |
726f6388 | 859 | { |
ccc6cda3 | 860 | if (STREQN (text, hostname_list[i], len) == 0) |
28ef6c31 | 861 | continue; |
726f6388 | 862 | |
ccc6cda3 | 863 | /* OK, it matches. Add it to the list. */ |
bc4cd23c | 864 | if (nmatch >= (rsize - 1)) |
726f6388 | 865 | { |
ccc6cda3 | 866 | rsize = (rsize + 16) - (rsize % 16); |
7117c2d2 | 867 | result = strvec_resize (result, rsize); |
726f6388 JA |
868 | } |
869 | ||
ccc6cda3 | 870 | result[nmatch++] = hostname_list[i]; |
726f6388 | 871 | } |
ccc6cda3 JA |
872 | if (nmatch) |
873 | result[nmatch] = (char *)NULL; | |
874 | return (result); | |
726f6388 JA |
875 | } |
876 | ||
ccc6cda3 | 877 | /* The equivalent of the Korn shell C-o operate-and-get-next-history-line |
726f6388 | 878 | editing command. */ |
ccc6cda3 | 879 | static int saved_history_line_to_use = -1; |
ac50fbac CR |
880 | static int last_saved_history_line = -1; |
881 | ||
882 | #define HISTORY_FULL() (history_is_stifled () && history_length >= history_max_entries) | |
726f6388 | 883 | |
28ef6c31 | 884 | static int |
726f6388 JA |
885 | set_saved_history () |
886 | { | |
ac50fbac CR |
887 | /* XXX - compensate for assumption that history was `shuffled' if it was |
888 | actually not. */ | |
889 | if (HISTORY_FULL () && | |
890 | hist_last_line_added == 0 && | |
891 | saved_history_line_to_use < history_length - 1) | |
892 | saved_history_line_to_use++; | |
893 | ||
ccc6cda3 | 894 | if (saved_history_line_to_use >= 0) |
ac50fbac CR |
895 | { |
896 | rl_get_previous_history (history_length - saved_history_line_to_use, 0); | |
897 | last_saved_history_line = saved_history_line_to_use; | |
898 | } | |
ccc6cda3 | 899 | saved_history_line_to_use = -1; |
726f6388 | 900 | rl_startup_hook = old_rl_startup_hook; |
f73dda09 | 901 | return (0); |
ccc6cda3 | 902 | } |
726f6388 | 903 | |
28ef6c31 | 904 | static int |
726f6388 JA |
905 | operate_and_get_next (count, c) |
906 | int count, c; | |
907 | { | |
908 | int where; | |
909 | ||
910 | /* Accept the current line. */ | |
b72432fd | 911 | rl_newline (1, c); |
726f6388 JA |
912 | |
913 | /* Find the current line, and find the next line to use. */ | |
d233b485 | 914 | where = rl_explicit_arg ? count : where_history (); |
726f6388 | 915 | |
d233b485 | 916 | if (HISTORY_FULL () || (where >= history_length - 1) || rl_explicit_arg) |
726f6388 JA |
917 | saved_history_line_to_use = where; |
918 | else | |
919 | saved_history_line_to_use = where + 1; | |
920 | ||
921 | old_rl_startup_hook = rl_startup_hook; | |
28ef6c31 JA |
922 | rl_startup_hook = set_saved_history; |
923 | ||
924 | return 0; | |
726f6388 JA |
925 | } |
926 | ||
726f6388 JA |
927 | /* This vi mode command causes VI_EDIT_COMMAND to be run on the current |
928 | command being entered (if no explicit argument is given), otherwise on | |
929 | a command from the history file. */ | |
930 | ||
b80f6443 JA |
931 | #define VI_EDIT_COMMAND "fc -e \"${VISUAL:-${EDITOR:-vi}}\"" |
932 | #define EMACS_EDIT_COMMAND "fc -e \"${VISUAL:-${EDITOR:-emacs}}\"" | |
95732b49 | 933 | #define POSIX_VI_EDIT_COMMAND "fc -e vi" |
726f6388 | 934 | |
28ef6c31 | 935 | static int |
7117c2d2 JA |
936 | edit_and_execute_command (count, c, editing_mode, edit_command) |
937 | int count, c, editing_mode; | |
938 | char *edit_command; | |
726f6388 | 939 | { |
3185942a | 940 | char *command, *metaval; |
495aee44 CR |
941 | int r, rrs, metaflag; |
942 | sh_parser_state_t ps; | |
f73dda09 JA |
943 | |
944 | rrs = rl_readline_state; | |
495aee44 | 945 | saved_command_line_count = current_command_line_count; |
726f6388 JA |
946 | |
947 | /* Accept the current line. */ | |
b72432fd | 948 | rl_newline (1, c); |
726f6388 JA |
949 | |
950 | if (rl_explicit_arg) | |
951 | { | |
7117c2d2 JA |
952 | command = (char *)xmalloc (strlen (edit_command) + 8); |
953 | sprintf (command, "%s %d", edit_command, count); | |
726f6388 JA |
954 | } |
955 | else | |
956 | { | |
957 | /* Take the command we were just editing, add it to the history file, | |
958 | then call fc to operate on it. We have to add a dummy command to | |
959 | the end of the history because fc ignores the last command (assumes | |
960 | it's supposed to deal with the command before the `fc'). */ | |
495aee44 CR |
961 | /* This breaks down when using command-oriented history and are not |
962 | finished with the command, so we should not ignore the last command */ | |
726f6388 | 963 | using_history (); |
d233b485 CR |
964 | if (rl_line_buffer[0]) |
965 | { | |
966 | current_command_line_count++; /* for rl_newline above */ | |
967 | bash_add_history (rl_line_buffer); | |
968 | } | |
ac50fbac | 969 | current_command_line_count = 0; /* for dummy history entry */ |
d166f048 | 970 | bash_add_history (""); |
726f6388 JA |
971 | history_lines_this_session++; |
972 | using_history (); | |
7117c2d2 | 973 | command = savestring (edit_command); |
726f6388 | 974 | } |
7117c2d2 | 975 | |
3185942a JA |
976 | metaval = rl_variable_value ("input-meta"); |
977 | metaflag = RL_BOOLEAN_VARIABLE_VALUE (metaval); | |
978 | ||
3185942a JA |
979 | if (rl_deprep_term_function) |
980 | (*rl_deprep_term_function) (); | |
495aee44 | 981 | save_parser_state (&ps); |
7117c2d2 | 982 | r = parse_and_execute (command, (editing_mode == VI_EDITING_MODE) ? "v" : "C-xC-e", SEVAL_NOHIST); |
495aee44 | 983 | restore_parser_state (&ps); |
3185942a JA |
984 | if (rl_prep_term_function) |
985 | (*rl_prep_term_function) (metaflag); | |
f73dda09 | 986 | |
495aee44 | 987 | current_command_line_count = saved_command_line_count; |
f73dda09 JA |
988 | |
989 | /* Now erase the contents of the current line and undo the effects of the | |
990 | rl_accept_line() above. We don't even want to make the text we just | |
991 | executed available for undoing. */ | |
ccc6cda3 | 992 | rl_line_buffer[0] = '\0'; /* XXX */ |
f73dda09 JA |
993 | rl_point = rl_end = 0; |
994 | rl_done = 0; | |
995 | rl_readline_state = rrs; | |
996 | ||
d233b485 CR |
997 | #if defined (VI_MODE) |
998 | if (editing_mode == VI_EDITING_MODE) | |
999 | rl_vi_insertion_mode (1, c); | |
1000 | #endif | |
1001 | ||
f73dda09 | 1002 | rl_forced_update_display (); |
28ef6c31 JA |
1003 | |
1004 | return r; | |
726f6388 | 1005 | } |
7117c2d2 JA |
1006 | |
1007 | #if defined (VI_MODE) | |
1008 | static int | |
1009 | vi_edit_and_execute_command (count, c) | |
1010 | int count, c; | |
1011 | { | |
95732b49 JA |
1012 | if (posixly_correct) |
1013 | return (edit_and_execute_command (count, c, VI_EDITING_MODE, POSIX_VI_EDIT_COMMAND)); | |
1014 | else | |
1015 | return (edit_and_execute_command (count, c, VI_EDITING_MODE, VI_EDIT_COMMAND)); | |
7117c2d2 | 1016 | } |
726f6388 JA |
1017 | #endif /* VI_MODE */ |
1018 | ||
7117c2d2 JA |
1019 | static int |
1020 | emacs_edit_and_execute_command (count, c) | |
1021 | int count, c; | |
1022 | { | |
1023 | return (edit_and_execute_command (count, c, EMACS_EDITING_MODE, EMACS_EDIT_COMMAND)); | |
1024 | } | |
1025 | ||
ccc6cda3 JA |
1026 | #if defined (ALIAS) |
1027 | static int | |
1028 | posix_edit_macros (count, key) | |
1029 | int count, key; | |
1030 | { | |
1031 | int c; | |
1032 | char alias_name[3], *alias_value, *macro; | |
1033 | ||
1034 | c = rl_read_key (); | |
1035 | alias_name[0] = '_'; | |
1036 | alias_name[1] = c; | |
1037 | alias_name[2] = '\0'; | |
1038 | ||
1039 | alias_value = get_alias_value (alias_name); | |
1040 | if (alias_value && *alias_value) | |
1041 | { | |
1042 | macro = savestring (alias_value); | |
1043 | rl_push_macro_input (macro); | |
1044 | } | |
1045 | return 0; | |
1046 | } | |
1047 | #endif | |
1048 | ||
3185942a JA |
1049 | /* Bindable commands that move `shell-words': that is, sequences of |
1050 | non-unquoted-metacharacters. */ | |
1051 | ||
1052 | #define WORDDELIM(c) (shellmeta(c) || shellblank(c)) | |
1053 | ||
1054 | static int | |
1055 | bash_forward_shellword (count, key) | |
1056 | int count, key; | |
1057 | { | |
1058 | size_t slen; | |
d233b485 | 1059 | int c, p; |
3185942a JA |
1060 | DECLARE_MBSTATE; |
1061 | ||
1062 | if (count < 0) | |
1063 | return (bash_backward_shellword (-count, key)); | |
1064 | ||
1065 | /* The tricky part of this is deciding whether or not the first character | |
1066 | we're on is an unquoted metacharacter. Not completely handled yet. */ | |
1067 | /* XXX - need to test this stuff with backslash-escaped shell | |
1068 | metacharacters and unclosed single- and double-quoted strings. */ | |
1069 | ||
1070 | p = rl_point; | |
1071 | slen = rl_end; | |
1072 | ||
1073 | while (count) | |
1074 | { | |
1075 | if (p == rl_end) | |
1076 | { | |
1077 | rl_point = rl_end; | |
1078 | return 0; | |
1079 | } | |
1080 | ||
495aee44 CR |
1081 | /* Are we in a quoted string? If we are, move to the end of the quoted |
1082 | string and continue the outer loop. We only want quoted strings, not | |
1083 | backslash-escaped characters, but char_is_quoted doesn't | |
1084 | differentiate. */ | |
1085 | if (char_is_quoted (rl_line_buffer, p) && p > 0 && rl_line_buffer[p-1] != '\\') | |
1086 | { | |
1087 | do | |
1088 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1089 | while (p < rl_end && char_is_quoted (rl_line_buffer, p)); | |
1090 | count--; | |
1091 | continue; | |
1092 | } | |
1093 | ||
1094 | /* Rest of code assumes we are not in a quoted string. */ | |
3185942a JA |
1095 | /* Move forward until we hit a non-metacharacter. */ |
1096 | while (p < rl_end && (c = rl_line_buffer[p]) && WORDDELIM (c)) | |
1097 | { | |
1098 | switch (c) | |
1099 | { | |
1100 | default: | |
1101 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1102 | continue; /* straight back to loop, don't increment p */ | |
1103 | case '\\': | |
1104 | if (p < rl_end && rl_line_buffer[p]) | |
1105 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1106 | break; | |
1107 | case '\'': | |
1108 | p = skip_to_delim (rl_line_buffer, ++p, "'", SD_NOJMP); | |
1109 | break; | |
1110 | case '"': | |
1111 | p = skip_to_delim (rl_line_buffer, ++p, "\"", SD_NOJMP); | |
1112 | break; | |
1113 | } | |
1114 | ||
1115 | if (p < rl_end) | |
1116 | p++; | |
1117 | } | |
1118 | ||
1119 | if (rl_line_buffer[p] == 0 || p == rl_end) | |
1120 | { | |
1121 | rl_point = rl_end; | |
1122 | rl_ding (); | |
1123 | return 0; | |
1124 | } | |
1125 | ||
1126 | /* Now move forward until we hit a non-quoted metacharacter or EOL */ | |
1127 | while (p < rl_end && (c = rl_line_buffer[p]) && WORDDELIM (c) == 0) | |
1128 | { | |
1129 | switch (c) | |
1130 | { | |
1131 | default: | |
1132 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1133 | continue; /* straight back to loop, don't increment p */ | |
1134 | case '\\': | |
1135 | if (p < rl_end && rl_line_buffer[p]) | |
1136 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1137 | break; | |
1138 | case '\'': | |
1139 | p = skip_to_delim (rl_line_buffer, ++p, "'", SD_NOJMP); | |
1140 | break; | |
1141 | case '"': | |
1142 | p = skip_to_delim (rl_line_buffer, ++p, "\"", SD_NOJMP); | |
1143 | break; | |
1144 | } | |
1145 | ||
1146 | if (p < rl_end) | |
1147 | p++; | |
1148 | } | |
1149 | ||
1150 | if (p == rl_end || rl_line_buffer[p] == 0) | |
1151 | { | |
1152 | rl_point = rl_end; | |
1153 | return (0); | |
1154 | } | |
1155 | ||
1156 | count--; | |
1157 | } | |
1158 | ||
1159 | rl_point = p; | |
1160 | return (0); | |
1161 | } | |
1162 | ||
1163 | static int | |
1164 | bash_backward_shellword (count, key) | |
1165 | int count, key; | |
1166 | { | |
1167 | size_t slen; | |
d233b485 | 1168 | int c, p; |
3185942a | 1169 | DECLARE_MBSTATE; |
d233b485 | 1170 | |
3185942a JA |
1171 | if (count < 0) |
1172 | return (bash_forward_shellword (-count, key)); | |
1173 | ||
1174 | p = rl_point; | |
1175 | slen = rl_end; | |
d233b485 CR |
1176 | |
1177 | if (p == rl_end && p > 0) | |
1178 | p--; | |
1179 | ||
3185942a JA |
1180 | while (count) |
1181 | { | |
1182 | if (p == 0) | |
1183 | { | |
1184 | rl_point = 0; | |
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | /* Move backward until we hit a non-metacharacter. */ | |
1189 | while (p > 0) | |
1190 | { | |
1191 | c = rl_line_buffer[p]; | |
d233b485 CR |
1192 | if (WORDDELIM (c) == 0 || char_is_quoted (rl_line_buffer, p)) |
1193 | break; | |
1194 | BACKUP_CHAR (rl_line_buffer, slen, p); | |
3185942a JA |
1195 | } |
1196 | ||
1197 | if (p == 0) | |
1198 | { | |
1199 | rl_point = 0; | |
1200 | return 0; | |
1201 | } | |
1202 | ||
1203 | /* Now move backward until we hit a metacharacter or BOL. */ | |
1204 | while (p > 0) | |
1205 | { | |
1206 | c = rl_line_buffer[p]; | |
1207 | if (WORDDELIM (c) && char_is_quoted (rl_line_buffer, p) == 0) | |
1208 | break; | |
1209 | BACKUP_CHAR (rl_line_buffer, slen, p); | |
1210 | } | |
1211 | ||
1212 | count--; | |
1213 | } | |
1214 | ||
1215 | rl_point = p; | |
1216 | return 0; | |
1217 | } | |
1218 | ||
1219 | static int | |
1220 | bash_kill_shellword (count, key) | |
1221 | int count, key; | |
1222 | { | |
1223 | int p; | |
1224 | ||
1225 | if (count < 0) | |
1226 | return (bash_backward_kill_shellword (-count, key)); | |
1227 | ||
1228 | p = rl_point; | |
1229 | bash_forward_shellword (count, key); | |
1230 | ||
1231 | if (rl_point != p) | |
1232 | rl_kill_text (p, rl_point); | |
1233 | ||
1234 | rl_point = p; | |
1235 | if (rl_editing_mode == 1) /* 1 == emacs_mode */ | |
1236 | rl_mark = rl_point; | |
1237 | ||
1238 | return 0; | |
1239 | } | |
1240 | ||
1241 | static int | |
1242 | bash_backward_kill_shellword (count, key) | |
1243 | int count, key; | |
1244 | { | |
1245 | int p; | |
1246 | ||
1247 | if (count < 0) | |
1248 | return (bash_kill_shellword (-count, key)); | |
1249 | ||
1250 | p = rl_point; | |
1251 | bash_backward_shellword (count, key); | |
1252 | ||
1253 | if (rl_point != p) | |
1254 | rl_kill_text (p, rl_point); | |
1255 | ||
1256 | if (rl_editing_mode == 1) /* 1 == emacs_mode */ | |
1257 | rl_mark = rl_point; | |
1258 | ||
1259 | return 0; | |
1260 | } | |
1261 | ||
1262 | ||
726f6388 JA |
1263 | /* **************************************************************** */ |
1264 | /* */ | |
1265 | /* How To Do Shell Completion */ | |
1266 | /* */ | |
1267 | /* **************************************************************** */ | |
1268 | ||
bb70624e | 1269 | #define COMMAND_SEPARATORS ";|&{(`" |
b80f6443 | 1270 | /* )} */ |
ac50fbac CR |
1271 | #define COMMAND_SEPARATORS_PLUS_WS ";|&{(` \t" |
1272 | /* )} */ | |
bb70624e | 1273 | |
ac50fbac CR |
1274 | /* check for redirections and other character combinations that are not |
1275 | command separators */ | |
bb70624e JA |
1276 | static int |
1277 | check_redir (ti) | |
1278 | int ti; | |
1279 | { | |
1280 | register int this_char, prev_char; | |
1281 | ||
1282 | /* Handle the two character tokens `>&', `<&', and `>|'. | |
1283 | We are not in a command position after one of these. */ | |
1284 | this_char = rl_line_buffer[ti]; | |
a0c0a00f | 1285 | prev_char = (ti > 0) ? rl_line_buffer[ti - 1] : 0; |
bb70624e JA |
1286 | |
1287 | if ((this_char == '&' && (prev_char == '<' || prev_char == '>')) || | |
1288 | (this_char == '|' && prev_char == '>')) | |
1289 | return (1); | |
ac50fbac CR |
1290 | else if (this_char == '{' && prev_char == '$') /*}*/ |
1291 | return (1); | |
1292 | #if 0 /* Not yet */ | |
1293 | else if (this_char == '(' && prev_char == '$') /*)*/ | |
1294 | return (1); | |
1295 | else if (this_char == '(' && prev_char == '<') /*)*/ | |
1296 | return (1); | |
1297 | #if defined (EXTENDED_GLOB) | |
1298 | else if (extended_glob && this_char == '(' && prev_char == '!') /*)*/ | |
1299 | return (1); | |
1300 | #endif | |
1301 | #endif | |
1302 | else if (char_is_quoted (rl_line_buffer, ti)) | |
bb70624e JA |
1303 | return (1); |
1304 | return (0); | |
1305 | } | |
1306 | ||
1307 | #if defined (PROGRAMMABLE_COMPLETION) | |
f73dda09 JA |
1308 | /* |
1309 | * XXX - because of the <= start test, and setting os = s+1, this can | |
1310 | * potentially return os > start. This is probably not what we want to | |
1311 | * happen, but fix later after 2.05a-release. | |
1312 | */ | |
bb70624e JA |
1313 | static int |
1314 | find_cmd_start (start) | |
1315 | int start; | |
1316 | { | |
a0c0a00f | 1317 | register int s, os, ns; |
bb70624e JA |
1318 | |
1319 | os = 0; | |
ac50fbac CR |
1320 | /* Flags == SD_NOJMP only because we want to skip over command substitutions |
1321 | in assignment statements. Have to test whether this affects `standalone' | |
1322 | command substitutions as individual words. */ | |
a0c0a00f | 1323 | while (((s = skip_to_delim (rl_line_buffer, os, COMMAND_SEPARATORS, SD_NOJMP|SD_COMPLETE/*|SD_NOSKIPCMD*/)) <= start) && |
bb70624e | 1324 | rl_line_buffer[s]) |
a0c0a00f CR |
1325 | { |
1326 | /* Handle >| token crudely; treat as > not | */ | |
1327 | if (rl_line_buffer[s] == '|' && rl_line_buffer[s-1] == '>') | |
1328 | { | |
1329 | ns = skip_to_delim (rl_line_buffer, s+1, COMMAND_SEPARATORS, SD_NOJMP|SD_COMPLETE/*|SD_NOSKIPCMD*/); | |
1330 | if (ns > start || rl_line_buffer[ns] == 0) | |
1331 | return os; | |
1332 | os = ns+1; | |
1333 | continue; | |
1334 | } | |
1335 | os = s+1; | |
1336 | } | |
bb70624e JA |
1337 | return os; |
1338 | } | |
1339 | ||
1340 | static int | |
1341 | find_cmd_end (end) | |
1342 | int end; | |
1343 | { | |
1344 | register int e; | |
1345 | ||
a0c0a00f | 1346 | e = skip_to_delim (rl_line_buffer, end, COMMAND_SEPARATORS, SD_NOJMP|SD_COMPLETE); |
bb70624e JA |
1347 | return e; |
1348 | } | |
1349 | ||
1350 | static char * | |
ac50fbac | 1351 | find_cmd_name (start, sp, ep) |
bb70624e | 1352 | int start; |
ac50fbac | 1353 | int *sp, *ep; |
bb70624e JA |
1354 | { |
1355 | char *name; | |
1356 | register int s, e; | |
1357 | ||
1358 | for (s = start; whitespace (rl_line_buffer[s]); s++) | |
1359 | ; | |
1360 | ||
1361 | /* skip until a shell break character */ | |
a0c0a00f | 1362 | e = skip_to_delim (rl_line_buffer, s, "()<>;&| \t\n", SD_NOJMP|SD_COMPLETE); |
bb70624e JA |
1363 | |
1364 | name = substring (rl_line_buffer, s, e); | |
1365 | ||
ac50fbac CR |
1366 | if (sp) |
1367 | *sp = s; | |
1368 | if (ep) | |
1369 | *ep = e; | |
1370 | ||
bb70624e JA |
1371 | return (name); |
1372 | } | |
1373 | ||
1374 | static char * | |
1375 | prog_complete_return (text, matchnum) | |
f73dda09 | 1376 | const char *text; |
bb70624e JA |
1377 | int matchnum; |
1378 | { | |
1379 | static int ind; | |
1380 | ||
1381 | if (matchnum == 0) | |
1382 | ind = 0; | |
1383 | ||
1384 | if (prog_complete_matches == 0 || prog_complete_matches[ind] == 0) | |
1385 | return (char *)NULL; | |
1386 | return (prog_complete_matches[ind++]); | |
1387 | } | |
1388 | ||
1389 | #endif /* PROGRAMMABLE_COMPLETION */ | |
1390 | ||
a0c0a00f CR |
1391 | /* Try and catch completion attempts that are syntax errors or otherwise |
1392 | invalid. */ | |
1393 | static int | |
1394 | invalid_completion (text, ind) | |
1395 | const char *text; | |
1396 | int ind; | |
1397 | { | |
1398 | int pind; | |
1399 | ||
1400 | /* If we don't catch these here, the next clause will */ | |
1401 | if (ind > 0 && rl_line_buffer[ind] == '(' && /*)*/ | |
1402 | member (rl_line_buffer[ind-1], "$<>")) | |
1403 | return 0; | |
1404 | ||
1405 | pind = ind - 1; | |
1406 | while (pind > 0 && whitespace (rl_line_buffer[pind])) | |
1407 | pind--; | |
1408 | /* If we have only whitespace preceding a paren, it's valid */ | |
1409 | if (ind >= 0 && pind <= 0 && rl_line_buffer[ind] == '(') /*)*/ | |
1410 | return 0; | |
1411 | /* Flag the invalid completions, which are mostly syntax errors */ | |
1412 | if (ind > 0 && rl_line_buffer[ind] == '(' && /*)*/ | |
1413 | member (rl_line_buffer[pind], COMMAND_SEPARATORS) == 0) | |
1414 | return 1; | |
1415 | ||
1416 | return 0; | |
1417 | } | |
1418 | ||
726f6388 JA |
1419 | /* Do some completion on TEXT. The indices of TEXT in RL_LINE_BUFFER are |
1420 | at START and END. Return an array of matches, or NULL if none. */ | |
1421 | static char ** | |
1422 | attempt_shell_completion (text, start, end) | |
28ef6c31 | 1423 | const char *text; |
726f6388 JA |
1424 | int start, end; |
1425 | { | |
d233b485 | 1426 | int in_command_position, ti, qc, dflags; |
ccc6cda3 | 1427 | char **matches, *command_separator_chars; |
ac50fbac CR |
1428 | #if defined (PROGRAMMABLE_COMPLETION) |
1429 | int have_progcomps, was_assignment; | |
d233b485 | 1430 | COMPSPEC *iw_compspec; |
ac50fbac | 1431 | #endif |
726f6388 | 1432 | |
bb70624e | 1433 | command_separator_chars = COMMAND_SEPARATORS; |
ccc6cda3 | 1434 | matches = (char **)NULL; |
28ef6c31 | 1435 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 | 1436 | |
16b2d7f4 | 1437 | rl_filename_quote_characters = default_filename_quote_characters; |
ac50fbac | 1438 | set_filename_bstab (rl_filename_quote_characters); |
16b2d7f4 | 1439 | set_directory_hook (); |
ac50fbac | 1440 | rl_filename_stat_hook = bash_filename_stat_hook; |
16b2d7f4 | 1441 | |
a0c0a00f CR |
1442 | rl_sort_completion_matches = 1; /* sort by default */ |
1443 | ||
726f6388 JA |
1444 | /* Determine if this could be a command word. It is if it appears at |
1445 | the start of the line (ignoring preceding whitespace), or if it | |
1446 | appears after a character that separates commands. It cannot be a | |
1447 | command word if we aren't at the top-level prompt. */ | |
1448 | ti = start - 1; | |
d233b485 | 1449 | qc = -1; |
726f6388 JA |
1450 | |
1451 | while ((ti > -1) && (whitespace (rl_line_buffer[ti]))) | |
1452 | ti--; | |
1453 | ||
bb70624e JA |
1454 | #if 1 |
1455 | /* If this is an open quote, maybe we're trying to complete a quoted | |
1456 | command name. */ | |
b80f6443 | 1457 | if (ti >= 0 && (rl_line_buffer[ti] == '"' || rl_line_buffer[ti] == '\'')) |
bb70624e JA |
1458 | { |
1459 | qc = rl_line_buffer[ti]; | |
d233b485 | 1460 | ti--; |
bb70624e | 1461 | while (ti > -1 && (whitespace (rl_line_buffer[ti]))) |
28ef6c31 | 1462 | ti--; |
bb70624e JA |
1463 | } |
1464 | #endif | |
1465 | ||
726f6388 JA |
1466 | in_command_position = 0; |
1467 | if (ti < 0) | |
1468 | { | |
1469 | /* Only do command completion at the start of a line when we | |
28ef6c31 | 1470 | are prompting at the top level. */ |
726f6388 JA |
1471 | if (current_prompt_string == ps1_prompt) |
1472 | in_command_position++; | |
ac50fbac CR |
1473 | else if (parser_in_command_position ()) |
1474 | in_command_position++; | |
726f6388 JA |
1475 | } |
1476 | else if (member (rl_line_buffer[ti], command_separator_chars)) | |
1477 | { | |
726f6388 JA |
1478 | in_command_position++; |
1479 | ||
bb70624e | 1480 | if (check_redir (ti) == 1) |
28ef6c31 | 1481 | in_command_position = 0; |
726f6388 JA |
1482 | } |
1483 | else | |
1484 | { | |
1485 | /* This still could be in command position. It is possible | |
1486 | that all of the previous words on the line are variable | |
1487 | assignments. */ | |
1488 | } | |
1489 | ||
a0c0a00f CR |
1490 | if (in_command_position && invalid_completion (text, ti)) |
1491 | { | |
1492 | rl_attempted_completion_over = 1; | |
1493 | return ((char **)NULL); | |
1494 | } | |
1495 | ||
d166f048 JA |
1496 | /* Check that we haven't incorrectly flagged a closed command substitution |
1497 | as indicating we're in a command position. */ | |
e8ce775d | 1498 | if (in_command_position && ti >= 0 && rl_line_buffer[ti] == '`' && |
bb70624e | 1499 | *text != '`' && unclosed_pair (rl_line_buffer, end, "`") == 0) |
d166f048 JA |
1500 | in_command_position = 0; |
1501 | ||
1502 | /* Special handling for command substitution. If *TEXT is a backquote, | |
1503 | it can be the start or end of an old-style command substitution, or | |
1504 | unmatched. If it's unmatched, both calls to unclosed_pair will | |
0001803f CR |
1505 | succeed. Don't bother if readline found a single quote and we are |
1506 | completing on the substring. */ | |
1507 | if (*text == '`' && rl_completion_quote_character != '\'' && | |
bb70624e JA |
1508 | (in_command_position || (unclosed_pair (rl_line_buffer, start, "`") && |
1509 | unclosed_pair (rl_line_buffer, end, "`")))) | |
28ef6c31 | 1510 | matches = rl_completion_matches (text, command_subst_completion_function); |
726f6388 | 1511 | |
bb70624e JA |
1512 | #if defined (PROGRAMMABLE_COMPLETION) |
1513 | /* Attempt programmable completion. */ | |
ac50fbac | 1514 | have_progcomps = prog_completion_enabled && (progcomp_size () > 0); |
d233b485 CR |
1515 | iw_compspec = progcomp_search (INITIALWORD); |
1516 | if (matches == 0 && | |
1517 | (in_command_position == 0 || text[0] == '\0' || (in_command_position && iw_compspec)) && | |
3185942a | 1518 | current_prompt_string == ps1_prompt) |
bb70624e | 1519 | { |
ac50fbac | 1520 | int s, e, s1, e1, os, foundcs; |
bb70624e JA |
1521 | char *n; |
1522 | ||
1523 | /* XXX - don't free the members */ | |
1524 | if (prog_complete_matches) | |
1525 | free (prog_complete_matches); | |
1526 | prog_complete_matches = (char **)NULL; | |
1527 | ||
ac50fbac CR |
1528 | os = start; |
1529 | n = 0; | |
2b3ca7e0 | 1530 | was_assignment = 0; |
ac50fbac | 1531 | s = find_cmd_start (os); |
bb70624e | 1532 | e = find_cmd_end (end); |
ac50fbac CR |
1533 | do |
1534 | { | |
2b3ca7e0 CR |
1535 | /* Don't read past the end of rl_line_buffer */ |
1536 | if (s > rl_end) | |
1537 | { | |
1538 | s1 = s = e1; | |
1539 | break; | |
1540 | } | |
1541 | /* Or past point if point is within an assignment statement */ | |
1542 | else if (was_assignment && s > rl_point) | |
1543 | { | |
1544 | s1 = s = e1; | |
1545 | break; | |
1546 | } | |
ac50fbac CR |
1547 | /* Skip over assignment statements preceding a command name. If we |
1548 | don't find a command name at all, we can perform command name | |
1549 | completion. If we find a partial command name, we should perform | |
1550 | command name completion on it. */ | |
1551 | FREE (n); | |
1552 | n = find_cmd_name (s, &s1, &e1); | |
1553 | s = e1 + 1; | |
1554 | } | |
1555 | while (was_assignment = assignment (n, 0)); | |
1556 | s = s1; /* reset to index where name begins */ | |
1557 | ||
1558 | /* s == index of where command name begins (reset above) | |
1559 | e == end of current command, may be end of line | |
1560 | s1 = index of where command name begins | |
1561 | e1 == index of where command name ends | |
1562 | start == index of where word to be completed begins | |
1563 | end == index of where word to be completed ends | |
1564 | if (s == start) we are doing command word completion for sure | |
1565 | if (e1 == end) we are at the end of the command name and completing it */ | |
1566 | if (start == 0 && end == 0 && e != 0 && text[0] == '\0') /* beginning of non-empty line */ | |
1567 | foundcs = 0; | |
1568 | else if (start == end && start == s1 && e != 0 && e1 > end) /* beginning of command name, leading whitespace */ | |
1569 | foundcs = 0; | |
1570 | else if (e == 0 && e == s && text[0] == '\0' && have_progcomps) /* beginning of empty line */ | |
d233b485 | 1571 | prog_complete_matches = programmable_completions (EMPTYCMD, text, s, e, &foundcs); |
ac50fbac CR |
1572 | else if (start == end && text[0] == '\0' && s1 > start && whitespace (rl_line_buffer[start])) |
1573 | foundcs = 0; /* whitespace before command name */ | |
1574 | else if (e > s && was_assignment == 0 && e1 == end && rl_line_buffer[e] == 0 && whitespace (rl_line_buffer[e-1]) == 0) | |
1575 | { | |
1576 | /* not assignment statement, but still want to perform command | |
1577 | completion if we are composing command word. */ | |
1578 | foundcs = 0; | |
1579 | in_command_position = s == start && STREQ (n, text); /* XXX */ | |
1580 | } | |
1581 | else if (e > s && was_assignment == 0 && have_progcomps) | |
1582 | { | |
1583 | prog_complete_matches = programmable_completions (n, text, s, e, &foundcs); | |
1584 | /* command completion if programmable completion fails */ | |
d233b485 CR |
1585 | /* If we have a completion for the initial word, we can prefer that */ |
1586 | in_command_position = s == start && (iw_compspec || STREQ (n, text)); /* XXX */ | |
1587 | if (iw_compspec && in_command_position) | |
1588 | foundcs = 0; | |
ac50fbac | 1589 | } |
a0c0a00f CR |
1590 | /* empty command name following command separator */ |
1591 | else if (s >= e && n[0] == '\0' && text[0] == '\0' && start > 0 && | |
1592 | was_assignment == 0 && member (rl_line_buffer[start-1], COMMAND_SEPARATORS)) | |
1593 | { | |
1594 | foundcs = 0; | |
1595 | in_command_position = 1; | |
1596 | } | |
ac50fbac CR |
1597 | else if (s >= e && n[0] == '\0' && text[0] == '\0' && start > 0) |
1598 | { | |
d233b485 CR |
1599 | foundcs = 0; /* empty command name following optional assignments */ |
1600 | in_command_position += was_assignment; | |
ac50fbac CR |
1601 | } |
1602 | else if (s == start && e == end && STREQ (n, text) && start > 0) | |
1603 | { | |
1604 | foundcs = 0; /* partial command name following assignments */ | |
1605 | in_command_position = 1; | |
1606 | } | |
f73dda09 JA |
1607 | else |
1608 | foundcs = 0; | |
d233b485 CR |
1609 | |
1610 | /* If we have defined a compspec for the initial (command) word, call | |
1611 | it and process the results like any other programmable completion. */ | |
1612 | if (in_command_position && have_progcomps && foundcs == 0 && iw_compspec) | |
1613 | prog_complete_matches = programmable_completions (INITIALWORD, text, s, e, &foundcs); | |
1614 | ||
bb70624e JA |
1615 | FREE (n); |
1616 | /* XXX - if we found a COMPSPEC for the command, just return whatever | |
1617 | the programmable completion code returns, and disable the default | |
28ef6c31 | 1618 | filename completion that readline will do unless the COPT_DEFAULT |
3185942a JA |
1619 | option has been set with the `-o default' option to complete or |
1620 | compopt. */ | |
bb70624e JA |
1621 | if (foundcs) |
1622 | { | |
3185942a | 1623 | pcomp_set_readline_variables (foundcs, 1); |
bb70624e JA |
1624 | /* Turn what the programmable completion code returns into what |
1625 | readline wants. I should have made compute_lcd_of_matches | |
1626 | external... */ | |
28ef6c31 JA |
1627 | matches = rl_completion_matches (text, prog_complete_return); |
1628 | if ((foundcs & COPT_DEFAULT) == 0) | |
1629 | rl_attempted_completion_over = 1; /* no default */ | |
b80f6443 JA |
1630 | if (matches || ((foundcs & COPT_BASHDEFAULT) == 0)) |
1631 | return (matches); | |
bb70624e JA |
1632 | } |
1633 | } | |
1634 | #endif | |
1635 | ||
b80f6443 | 1636 | if (matches == 0) |
0628567a JA |
1637 | { |
1638 | dflags = 0; | |
1639 | if (in_command_position) | |
1640 | dflags |= DEFCOMP_CMDPOS; | |
1641 | matches = bash_default_completion (text, start, end, qc, dflags); | |
1642 | } | |
b80f6443 JA |
1643 | |
1644 | return matches; | |
1645 | } | |
1646 | ||
1647 | char ** | |
0628567a | 1648 | bash_default_completion (text, start, end, qc, compflags) |
b80f6443 | 1649 | const char *text; |
0628567a | 1650 | int start, end, qc, compflags; |
b80f6443 | 1651 | { |
ac50fbac | 1652 | char **matches, *t; |
b80f6443 JA |
1653 | |
1654 | matches = (char **)NULL; | |
1655 | ||
bb70624e | 1656 | /* New posix-style command substitution or variable name? */ |
d233b485 | 1657 | if (*text == '$') |
bb70624e JA |
1658 | { |
1659 | if (qc != '\'' && text[1] == '(') /* ) */ | |
28ef6c31 | 1660 | matches = rl_completion_matches (text, command_subst_completion_function); |
bb70624e | 1661 | else |
ac50fbac CR |
1662 | { |
1663 | matches = rl_completion_matches (text, variable_completion_function); | |
a0c0a00f CR |
1664 | /* If a single match, see if it expands to a directory name and append |
1665 | a slash if it does. This requires us to expand the variable name, | |
1666 | so we don't want to display errors if the variable is unset. This | |
1667 | can happen with dynamic variables whose value has never been | |
1668 | requested. */ | |
ac50fbac CR |
1669 | if (matches && matches[0] && matches[1] == 0) |
1670 | { | |
1671 | t = savestring (matches[0]); | |
1672 | bash_filename_stat_hook (&t); | |
1673 | /* doesn't use test_for_directory because that performs tilde | |
1674 | expansion */ | |
1675 | if (file_isdir (t)) | |
1676 | rl_completion_append_character = '/'; | |
1677 | free (t); | |
1678 | } | |
1679 | } | |
bb70624e | 1680 | } |
726f6388 JA |
1681 | |
1682 | /* If the word starts in `~', and there is no slash in the word, then | |
1683 | try completing this word as a username. */ | |
495aee44 | 1684 | if (matches == 0 && *text == '~' && mbschr (text, '/') == 0) |
28ef6c31 | 1685 | matches = rl_completion_matches (text, rl_username_completion_function); |
726f6388 JA |
1686 | |
1687 | /* Another one. Why not? If the word starts in '@', then look through | |
1688 | the world of known hostnames for completion first. */ | |
495aee44 | 1689 | if (matches == 0 && perform_hostname_completion && *text == '@') |
28ef6c31 | 1690 | matches = rl_completion_matches (text, hostname_completion_function); |
726f6388 JA |
1691 | |
1692 | /* And last, (but not least) if this word is in a command position, then | |
1693 | complete over possible command names, including aliases, functions, | |
1694 | and command names. */ | |
0628567a | 1695 | if (matches == 0 && (compflags & DEFCOMP_CMDPOS)) |
726f6388 | 1696 | { |
0628567a JA |
1697 | /* If END == START and text[0] == 0, we are trying to complete an empty |
1698 | command word. */ | |
1699 | if (no_empty_command_completion && end == start && text[0] == '\0') | |
bb70624e JA |
1700 | { |
1701 | matches = (char **)NULL; | |
28ef6c31 | 1702 | rl_ignore_some_completions_function = bash_ignore_everything; |
bb70624e JA |
1703 | } |
1704 | else | |
1705 | { | |
b80f6443 JA |
1706 | #define CMD_IS_DIR(x) (absolute_pathname(x) == 0 && absolute_program(x) == 0 && *(x) != '~' && test_for_directory (x)) |
1707 | ||
95732b49 | 1708 | dot_in_path = 0; |
28ef6c31 | 1709 | matches = rl_completion_matches (text, command_word_completion_function); |
b80f6443 | 1710 | |
bb70624e JA |
1711 | /* If we are attempting command completion and nothing matches, we |
1712 | do not want readline to perform filename completion for us. We | |
1713 | still want to be able to complete partial pathnames, so set the | |
1714 | completion ignore function to something which will remove | |
1715 | filenames and leave directories in the match list. */ | |
1716 | if (matches == (char **)NULL) | |
28ef6c31 | 1717 | rl_ignore_some_completions_function = bash_ignore_filenames; |
95732b49 JA |
1718 | else if (matches[1] == 0 && CMD_IS_DIR(matches[0]) && dot_in_path == 0) |
1719 | /* If we found a single match, without looking in the current | |
1720 | directory (because it's not in $PATH), but the found name is | |
1721 | also a command in the current directory, suppress appending any | |
1722 | terminating character, since it's ambiguous. */ | |
1723 | { | |
1724 | rl_completion_suppress_append = 1; | |
1725 | rl_filename_completion_desired = 0; | |
1726 | } | |
b80f6443 | 1727 | else if (matches[0] && matches[1] && STREQ (matches[0], matches[1]) && CMD_IS_DIR (matches[0])) |
7117c2d2 JA |
1728 | /* There are multiple instances of the same match (duplicate |
1729 | completions haven't yet been removed). In this case, all of | |
1730 | the matches will be the same, and the duplicate removal code | |
95732b49 JA |
1731 | will distill them all down to one. We turn on |
1732 | rl_completion_suppress_append for the same reason as above. | |
7117c2d2 JA |
1733 | Remember: we only care if there's eventually a single unique |
1734 | completion. If there are multiple completions this won't | |
1735 | make a difference and the problem won't occur. */ | |
95732b49 JA |
1736 | { |
1737 | rl_completion_suppress_append = 1; | |
1738 | rl_filename_completion_desired = 0; | |
1739 | } | |
bb70624e | 1740 | } |
726f6388 JA |
1741 | } |
1742 | ||
ccc6cda3 JA |
1743 | /* This could be a globbing pattern, so try to expand it using pathname |
1744 | expansion. */ | |
4d2e3154 | 1745 | if (!matches && completion_glob_pattern ((char *)text)) |
e8ce775d | 1746 | { |
28ef6c31 | 1747 | matches = rl_completion_matches (text, glob_complete_word); |
e8ce775d JA |
1748 | /* A glob expression that matches more than one filename is problematic. |
1749 | If we match more than one filename, punt. */ | |
7117c2d2 | 1750 | if (matches && matches[1] && rl_completion_type == TAB) |
e8ce775d | 1751 | { |
7117c2d2 | 1752 | strvec_dispose (matches); |
e8ce775d JA |
1753 | matches = (char **)0; |
1754 | } | |
ac50fbac CR |
1755 | else if (matches && matches[1] && rl_completion_type == '!') |
1756 | { | |
1757 | rl_completion_suppress_append = 1; | |
1758 | rl_filename_completion_desired = 0; | |
1759 | } | |
e8ce775d | 1760 | } |
ccc6cda3 | 1761 | |
726f6388 JA |
1762 | return (matches); |
1763 | } | |
1764 | ||
ac50fbac CR |
1765 | static int |
1766 | bash_command_name_stat_hook (name) | |
1767 | char **name; | |
1768 | { | |
1769 | char *cname, *result; | |
1770 | ||
1771 | /* If it's not something we're going to look up in $PATH, just call the | |
1772 | normal filename stat hook. */ | |
1773 | if (absolute_program (*name)) | |
1774 | return (bash_filename_stat_hook (name)); | |
1775 | ||
1776 | cname = *name; | |
1777 | /* XXX - we could do something here with converting aliases, builtins, | |
1778 | and functions into something that came out as executable, but we don't. */ | |
1779 | result = search_for_command (cname, 0); | |
1780 | if (result) | |
1781 | { | |
1782 | *name = result; | |
1783 | return 1; | |
1784 | } | |
1785 | return 0; | |
1786 | } | |
1787 | ||
1788 | static int | |
1789 | executable_completion (filename, searching_path) | |
1790 | const char *filename; | |
1791 | int searching_path; | |
1792 | { | |
1793 | char *f; | |
1794 | int r; | |
1795 | ||
1796 | f = savestring (filename); | |
1797 | bash_directory_completion_hook (&f); | |
1798 | ||
1799 | r = searching_path ? executable_file (f) : executable_or_directory (f); | |
1800 | free (f); | |
1801 | return r; | |
1802 | } | |
1803 | ||
726f6388 JA |
1804 | /* This is the function to call when the word to complete is in a position |
1805 | where a command word can be found. It grovels $PATH, looking for commands | |
1806 | that match. It also scans aliases, function names, and the shell_builtin | |
1807 | table. */ | |
bb70624e | 1808 | char * |
726f6388 | 1809 | command_word_completion_function (hint_text, state) |
28ef6c31 | 1810 | const char *hint_text; |
726f6388 JA |
1811 | int state; |
1812 | { | |
1813 | static char *hint = (char *)NULL; | |
1814 | static char *path = (char *)NULL; | |
1815 | static char *val = (char *)NULL; | |
1816 | static char *filename_hint = (char *)NULL; | |
ac50fbac | 1817 | static char *fnhint = (char *)NULL; |
95732b49 | 1818 | static char *dequoted_hint = (char *)NULL; |
3185942a JA |
1819 | static char *directory_part = (char *)NULL; |
1820 | static char **glob_matches = (char **)NULL; | |
d233b485 | 1821 | static int path_index, hint_len, istate, igncase; |
0628567a | 1822 | static int mapping_over, local_index, searching_path, hint_is_dir; |
3185942a | 1823 | static int old_glob_ignore_case, globpat; |
726f6388 JA |
1824 | static SHELL_VAR **varlist = (SHELL_VAR **)NULL; |
1825 | #if defined (ALIAS) | |
ccc6cda3 | 1826 | static alias_t **alias_list = (alias_t **)NULL; |
726f6388 | 1827 | #endif /* ALIAS */ |
ac50fbac | 1828 | char *temp, *cval; |
726f6388 JA |
1829 | |
1830 | /* We have to map over the possibilities for command words. If we have | |
1831 | no state, then make one just for that purpose. */ | |
3185942a | 1832 | if (state == 0) |
726f6388 | 1833 | { |
ac50fbac CR |
1834 | rl_filename_stat_hook = bash_command_name_stat_hook; |
1835 | ||
95732b49 JA |
1836 | if (dequoted_hint && dequoted_hint != hint) |
1837 | free (dequoted_hint); | |
726f6388 JA |
1838 | if (hint) |
1839 | free (hint); | |
1840 | ||
0628567a JA |
1841 | mapping_over = searching_path = 0; |
1842 | hint_is_dir = CMD_IS_DIR (hint_text); | |
726f6388 JA |
1843 | val = (char *)NULL; |
1844 | ||
95732b49 | 1845 | temp = rl_variable_value ("completion-ignore-case"); |
3185942a JA |
1846 | igncase = RL_BOOLEAN_VARIABLE_VALUE (temp); |
1847 | ||
1848 | if (glob_matches) | |
1849 | { | |
1850 | free (glob_matches); | |
1851 | glob_matches = (char **)NULL; | |
1852 | } | |
1853 | ||
4d2e3154 | 1854 | globpat = completion_glob_pattern ((char *)hint_text); |
95732b49 | 1855 | |
726f6388 JA |
1856 | /* If this is an absolute program name, do not check it against |
1857 | aliases, reserved words, functions or builtins. We must check | |
1858 | whether or not it is unique, and, if so, whether that filename | |
1859 | is executable. */ | |
3185942a | 1860 | if (globpat || absolute_program (hint_text)) |
726f6388 JA |
1861 | { |
1862 | /* Perform tilde expansion on what's passed, so we don't end up | |
a0c0a00f CR |
1863 | passing filenames with tildes directly to stat(). The rest of |
1864 | the shell doesn't do variable expansion on the word following | |
1865 | the tilde, so we don't do it here even if direxpand is set. */ | |
726f6388 | 1866 | if (*hint_text == '~') |
3185942a JA |
1867 | { |
1868 | hint = bash_tilde_expand (hint_text, 0); | |
1869 | directory_part = savestring (hint_text); | |
1870 | temp = strchr (directory_part, '/'); | |
1871 | if (temp) | |
1872 | *temp = 0; | |
1873 | else | |
1874 | { | |
1875 | free (directory_part); | |
1876 | directory_part = (char *)NULL; | |
1877 | } | |
1878 | } | |
a0c0a00f CR |
1879 | else if (dircomplete_expand) |
1880 | { | |
1881 | hint = savestring (hint_text); | |
1882 | bash_directory_completion_hook (&hint); | |
1883 | } | |
726f6388 JA |
1884 | else |
1885 | hint = savestring (hint_text); | |
95732b49 JA |
1886 | |
1887 | dequoted_hint = hint; | |
1888 | /* If readline's completer found a quote character somewhere, but | |
1889 | didn't set the quote character, there must have been a quote | |
1890 | character embedded in the filename. It can't be at the start of | |
1891 | the filename, so we need to dequote the filename before we look | |
1892 | in the file system for it. */ | |
1893 | if (rl_completion_found_quote && rl_completion_quote_character == 0) | |
1894 | { | |
1895 | dequoted_hint = bash_dequote_filename (hint, 0); | |
1896 | free (hint); | |
1897 | hint = dequoted_hint; | |
1898 | } | |
d233b485 | 1899 | hint_len = strlen (hint); |
726f6388 JA |
1900 | |
1901 | if (filename_hint) | |
1902 | free (filename_hint); | |
95732b49 | 1903 | |
ac50fbac | 1904 | fnhint = filename_hint = savestring (hint); |
726f6388 | 1905 | |
726f6388 | 1906 | istate = 0; |
3185942a JA |
1907 | |
1908 | if (globpat) | |
1909 | { | |
1910 | mapping_over = 5; | |
1911 | goto globword; | |
1912 | } | |
1913 | else | |
1914 | { | |
ac50fbac | 1915 | if (dircomplete_expand && path_dot_or_dotdot (filename_hint)) |
16b2d7f4 CR |
1916 | { |
1917 | dircomplete_expand = 0; | |
1918 | set_directory_hook (); | |
1919 | dircomplete_expand = 1; | |
1920 | } | |
3185942a JA |
1921 | mapping_over = 4; |
1922 | goto inner; | |
1923 | } | |
726f6388 JA |
1924 | } |
1925 | ||
95732b49 | 1926 | dequoted_hint = hint = savestring (hint_text); |
d233b485 | 1927 | hint_len = strlen (hint); |
726f6388 | 1928 | |
95732b49 | 1929 | if (rl_completion_found_quote && rl_completion_quote_character == 0) |
d233b485 | 1930 | dequoted_hint = bash_dequote_filename (hint, 0); |
95732b49 | 1931 | |
726f6388 | 1932 | path = get_string_value ("PATH"); |
95732b49 | 1933 | path_index = dot_in_path = 0; |
726f6388 JA |
1934 | |
1935 | /* Initialize the variables for each type of command word. */ | |
1936 | local_index = 0; | |
1937 | ||
1938 | if (varlist) | |
1939 | free (varlist); | |
1940 | ||
1941 | varlist = all_visible_functions (); | |
1942 | ||
1943 | #if defined (ALIAS) | |
1944 | if (alias_list) | |
1945 | free (alias_list); | |
1946 | ||
1947 | alias_list = all_aliases (); | |
1948 | #endif /* ALIAS */ | |
1949 | } | |
1950 | ||
1951 | /* mapping_over says what we are currently hacking. Note that every case | |
1952 | in this list must fall through when there are no more possibilities. */ | |
1953 | ||
1954 | switch (mapping_over) | |
1955 | { | |
1956 | case 0: /* Aliases come first. */ | |
1957 | #if defined (ALIAS) | |
1958 | while (alias_list && alias_list[local_index]) | |
1959 | { | |
1960 | register char *alias; | |
1961 | ||
1962 | alias = alias_list[local_index++]->name; | |
1963 | ||
d233b485 CR |
1964 | if (igncase == 0 && (STREQN (alias, hint, hint_len))) |
1965 | return (savestring (alias)); | |
1966 | else if (igncase && strncasecmp (alias, hint, hint_len) == 0) | |
726f6388 JA |
1967 | return (savestring (alias)); |
1968 | } | |
1969 | #endif /* ALIAS */ | |
1970 | local_index = 0; | |
1971 | mapping_over++; | |
1972 | ||
1973 | case 1: /* Then shell reserved words. */ | |
1974 | { | |
1975 | while (word_token_alist[local_index].word) | |
1976 | { | |
1977 | register char *reserved_word; | |
1978 | ||
1979 | reserved_word = word_token_alist[local_index++].word; | |
1980 | ||
1981 | if (STREQN (reserved_word, hint, hint_len)) | |
1982 | return (savestring (reserved_word)); | |
1983 | } | |
1984 | local_index = 0; | |
1985 | mapping_over++; | |
1986 | } | |
1987 | ||
1988 | case 2: /* Then function names. */ | |
1989 | while (varlist && varlist[local_index]) | |
1990 | { | |
1991 | register char *varname; | |
1992 | ||
1993 | varname = varlist[local_index++]->name; | |
1994 | ||
d233b485 CR |
1995 | /* Honor completion-ignore-case for shell function names. */ |
1996 | if (igncase == 0 && (STREQN (varname, hint, hint_len))) | |
1997 | return (savestring (varname)); | |
1998 | else if (igncase && strncasecmp (varname, hint, hint_len) == 0) | |
726f6388 JA |
1999 | return (savestring (varname)); |
2000 | } | |
2001 | local_index = 0; | |
2002 | mapping_over++; | |
2003 | ||
2004 | case 3: /* Then shell builtins. */ | |
2005 | for (; local_index < num_shell_builtins; local_index++) | |
2006 | { | |
2007 | /* Ignore it if it doesn't have a function pointer or if it | |
2008 | is not currently enabled. */ | |
2009 | if (!shell_builtins[local_index].function || | |
2010 | (shell_builtins[local_index].flags & BUILTIN_ENABLED) == 0) | |
2011 | continue; | |
2012 | ||
2013 | if (STREQN (shell_builtins[local_index].name, hint, hint_len)) | |
2014 | { | |
2015 | int i = local_index++; | |
2016 | ||
2017 | return (savestring (shell_builtins[i].name)); | |
2018 | } | |
2019 | } | |
2020 | local_index = 0; | |
2021 | mapping_over++; | |
2022 | } | |
2023 | ||
3185942a JA |
2024 | globword: |
2025 | /* Limited support for completing command words with globbing chars. Only | |
2026 | a single match (multiple matches that end up reducing the number of | |
2027 | characters in the common prefix are bad) will ever be returned on | |
2028 | regular completion. */ | |
30d188c2 | 2029 | if (globpat) |
3185942a JA |
2030 | { |
2031 | if (state == 0) | |
2032 | { | |
2033 | glob_ignore_case = igncase; | |
2034 | glob_matches = shell_glob_filename (hint); | |
2035 | glob_ignore_case = old_glob_ignore_case; | |
2036 | ||
2037 | if (GLOB_FAILED (glob_matches) || glob_matches == 0) | |
2038 | { | |
2039 | glob_matches = (char **)NULL; | |
2040 | return ((char *)NULL); | |
2041 | } | |
2042 | ||
2043 | local_index = 0; | |
2044 | ||
2045 | if (glob_matches[1] && rl_completion_type == TAB) /* multiple matches are bad */ | |
2046 | return ((char *)NULL); | |
2047 | } | |
2048 | ||
2049 | while (val = glob_matches[local_index++]) | |
2050 | { | |
2051 | if (executable_or_directory (val)) | |
2052 | { | |
ac50fbac | 2053 | if (*hint_text == '~' && directory_part) |
3185942a | 2054 | { |
ac50fbac | 2055 | temp = maybe_restore_tilde (val, directory_part); |
3185942a JA |
2056 | free (val); |
2057 | val = temp; | |
2058 | } | |
2059 | return (val); | |
2060 | } | |
2061 | free (val); | |
2062 | } | |
2063 | ||
2064 | glob_ignore_case = old_glob_ignore_case; | |
2065 | return ((char *)NULL); | |
2066 | } | |
2067 | ||
0628567a JA |
2068 | /* If the text passed is a directory in the current directory, return it |
2069 | as a possible match. Executables in directories in the current | |
2070 | directory can be specified using relative pathnames and successfully | |
2071 | executed even when `.' is not in $PATH. */ | |
2072 | if (hint_is_dir) | |
2073 | { | |
2074 | hint_is_dir = 0; /* only return the hint text once */ | |
2075 | return (savestring (hint_text)); | |
2076 | } | |
2077 | ||
ccc6cda3 | 2078 | /* Repeatedly call filename_completion_function while we have |
726f6388 JA |
2079 | members of PATH left. Question: should we stat each file? |
2080 | Answer: we call executable_file () on each file. */ | |
2081 | outer: | |
2082 | ||
2083 | istate = (val != (char *)NULL); | |
2084 | ||
3185942a | 2085 | if (istate == 0) |
726f6388 JA |
2086 | { |
2087 | char *current_path; | |
2088 | ||
2089 | /* Get the next directory from the path. If there is none, then we | |
2090 | are all done. */ | |
3185942a | 2091 | if (path == 0 || path[path_index] == 0 || |
726f6388 JA |
2092 | (current_path = extract_colon_unit (path, &path_index)) == 0) |
2093 | return ((char *)NULL); | |
2094 | ||
0628567a | 2095 | searching_path = 1; |
726f6388 JA |
2096 | if (*current_path == 0) |
2097 | { | |
2098 | free (current_path); | |
2099 | current_path = savestring ("."); | |
2100 | } | |
2101 | ||
2102 | if (*current_path == '~') | |
2103 | { | |
2104 | char *t; | |
2105 | ||
7117c2d2 | 2106 | t = bash_tilde_expand (current_path, 0); |
726f6388 JA |
2107 | free (current_path); |
2108 | current_path = t; | |
2109 | } | |
2110 | ||
95732b49 JA |
2111 | if (current_path[0] == '.' && current_path[1] == '\0') |
2112 | dot_in_path = 1; | |
2113 | ||
ac50fbac CR |
2114 | if (fnhint && fnhint != filename_hint) |
2115 | free (fnhint); | |
726f6388 JA |
2116 | if (filename_hint) |
2117 | free (filename_hint); | |
2118 | ||
7117c2d2 | 2119 | filename_hint = sh_makepath (current_path, hint, 0); |
ac50fbac CR |
2120 | /* Need a quoted version (though it doesn't matter much in most |
2121 | cases) because rl_filename_completion_function dequotes the | |
2122 | filename it gets, assuming that it's been quoted as part of | |
2123 | the input line buffer. */ | |
2124 | if (strpbrk (filename_hint, "\"'\\")) | |
2125 | fnhint = sh_backslash_quote (filename_hint, filename_bstab, 0); | |
2126 | else | |
2127 | fnhint = filename_hint; | |
3185942a | 2128 | free (current_path); /* XXX */ |
726f6388 JA |
2129 | } |
2130 | ||
2131 | inner: | |
ac50fbac | 2132 | val = rl_filename_completion_function (fnhint, istate); |
16b2d7f4 CR |
2133 | if (mapping_over == 4 && dircomplete_expand) |
2134 | set_directory_hook (); | |
2135 | ||
726f6388 JA |
2136 | istate = 1; |
2137 | ||
ccc6cda3 | 2138 | if (val == 0) |
726f6388 JA |
2139 | { |
2140 | /* If the hint text is an absolute program, then don't bother | |
2141 | searching through PATH. */ | |
2142 | if (absolute_program (hint)) | |
2143 | return ((char *)NULL); | |
2144 | ||
2145 | goto outer; | |
2146 | } | |
2147 | else | |
2148 | { | |
d166f048 | 2149 | int match, freetemp; |
726f6388 JA |
2150 | |
2151 | if (absolute_program (hint)) | |
2152 | { | |
95732b49 JA |
2153 | if (igncase == 0) |
2154 | match = strncmp (val, hint, hint_len) == 0; | |
2155 | else | |
2156 | match = strncasecmp (val, hint, hint_len) == 0; | |
2157 | ||
726f6388 JA |
2158 | /* If we performed tilde expansion, restore the original |
2159 | filename. */ | |
2160 | if (*hint_text == '~') | |
ac50fbac | 2161 | temp = maybe_restore_tilde (val, directory_part); |
726f6388 JA |
2162 | else |
2163 | temp = savestring (val); | |
d166f048 | 2164 | freetemp = 1; |
726f6388 JA |
2165 | } |
2166 | else | |
2167 | { | |
2168 | temp = strrchr (val, '/'); | |
2169 | ||
2170 | if (temp) | |
2171 | { | |
2172 | temp++; | |
95732b49 JA |
2173 | if (igncase == 0) |
2174 | freetemp = match = strncmp (temp, hint, hint_len) == 0; | |
2175 | else | |
2176 | freetemp = match = strncasecmp (temp, hint, hint_len) == 0; | |
726f6388 JA |
2177 | if (match) |
2178 | temp = savestring (temp); | |
2179 | } | |
2180 | else | |
d166f048 | 2181 | freetemp = match = 0; |
726f6388 JA |
2182 | } |
2183 | ||
0628567a JA |
2184 | /* If we have found a match, and it is an executable file, return it. |
2185 | We don't return directory names when searching $PATH, since the | |
2186 | bash execution code won't find executables in directories which | |
2187 | appear in directories in $PATH when they're specified using | |
ac50fbac CR |
2188 | relative pathnames. */ |
2189 | #if 0 | |
2190 | /* If we're not searching $PATH and we have a relative pathname, we | |
2191 | need to re-canonicalize it before testing whether or not it's an | |
2192 | executable or a directory so the shell treats .. relative to $PWD | |
2193 | according to the physical/logical option. The shell already | |
2194 | canonicalizes the directory name in order to tell readline where | |
2195 | to look, so not doing it here will be inconsistent. */ | |
2196 | /* XXX -- currently not used -- will introduce more inconsistency, | |
2197 | since shell does not canonicalize ../foo before passing it to | |
2198 | shell_execve(). */ | |
2199 | if (match && searching_path == 0 && *val == '.') | |
2200 | { | |
2201 | char *t, *t1; | |
2202 | ||
2203 | t = get_working_directory ("command-word-completion"); | |
2204 | t1 = make_absolute (val, t); | |
2205 | free (t); | |
2206 | cval = sh_canonpath (t1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); | |
2207 | } | |
2208 | else | |
0628567a | 2209 | #endif |
ac50fbac CR |
2210 | cval = val; |
2211 | ||
2212 | if (match && executable_completion ((searching_path ? val : cval), searching_path)) | |
726f6388 | 2213 | { |
ac50fbac CR |
2214 | if (cval != val) |
2215 | free (cval); | |
726f6388 JA |
2216 | free (val); |
2217 | val = ""; /* So it won't be NULL. */ | |
2218 | return (temp); | |
2219 | } | |
2220 | else | |
2221 | { | |
d166f048 JA |
2222 | if (freetemp) |
2223 | free (temp); | |
ac50fbac CR |
2224 | if (cval != val) |
2225 | free (cval); | |
726f6388 JA |
2226 | free (val); |
2227 | goto inner; | |
2228 | } | |
2229 | } | |
2230 | } | |
2231 | ||
d166f048 | 2232 | /* Completion inside an unterminated command substitution. */ |
726f6388 JA |
2233 | static char * |
2234 | command_subst_completion_function (text, state) | |
28ef6c31 | 2235 | const char *text; |
ccc6cda3 | 2236 | int state; |
726f6388 JA |
2237 | { |
2238 | static char **matches = (char **)NULL; | |
28ef6c31 JA |
2239 | static const char *orig_start; |
2240 | static char *filename_text = (char *)NULL; | |
726f6388 | 2241 | static int cmd_index, start_len; |
ccc6cda3 | 2242 | char *value; |
726f6388 JA |
2243 | |
2244 | if (state == 0) | |
2245 | { | |
2246 | if (filename_text) | |
2247 | free (filename_text); | |
2248 | orig_start = text; | |
2249 | if (*text == '`') | |
28ef6c31 | 2250 | text++; |
cce855bc | 2251 | else if (*text == '$' && text[1] == '(') /* ) */ |
28ef6c31 | 2252 | text += 2; |
b80f6443 JA |
2253 | /* If the text was quoted, suppress any quote character that the |
2254 | readline completion code would insert. */ | |
2255 | rl_completion_suppress_quote = 1; | |
726f6388 JA |
2256 | start_len = text - orig_start; |
2257 | filename_text = savestring (text); | |
2258 | if (matches) | |
2259 | free (matches); | |
7117c2d2 JA |
2260 | |
2261 | /* | |
2262 | * At this point we can entertain the idea of re-parsing | |
2263 | * `filename_text' into a (possibly incomplete) command name and | |
2264 | * arguments, and doing completion based on that. This is | |
2265 | * currently very rudimentary, but it is a small improvement. | |
2266 | */ | |
2267 | for (value = filename_text + strlen (filename_text) - 1; value > filename_text; value--) | |
2268 | if (whitespace (*value) || member (*value, COMMAND_SEPARATORS)) | |
2269 | break; | |
2270 | if (value <= filename_text) | |
2271 | matches = rl_completion_matches (filename_text, command_word_completion_function); | |
2272 | else | |
2273 | { | |
2274 | value++; | |
2275 | start_len += value - filename_text; | |
2276 | if (whitespace (value[-1])) | |
2277 | matches = rl_completion_matches (value, rl_filename_completion_function); | |
2278 | else | |
2279 | matches = rl_completion_matches (value, command_word_completion_function); | |
2280 | } | |
2281 | ||
2282 | /* If there is more than one match, rl_completion_matches has already | |
2283 | put the lcd in matches[0]. Skip over it. */ | |
2284 | cmd_index = matches && matches[0] && matches[1]; | |
95732b49 JA |
2285 | |
2286 | /* If there's a single match and it's a directory, set the append char | |
2287 | to the expected `/'. Otherwise, don't append anything. */ | |
2288 | if (matches && matches[0] && matches[1] == 0 && test_for_directory (matches[0])) | |
2289 | rl_completion_append_character = '/'; | |
2290 | else | |
2291 | rl_completion_suppress_append = 1; | |
726f6388 JA |
2292 | } |
2293 | ||
ac50fbac | 2294 | if (matches == 0 || matches[cmd_index] == 0) |
726f6388 JA |
2295 | { |
2296 | rl_filename_quoting_desired = 0; /* disable quoting */ | |
2297 | return ((char *)NULL); | |
2298 | } | |
2299 | else | |
2300 | { | |
f73dda09 | 2301 | value = (char *)xmalloc (1 + start_len + strlen (matches[cmd_index])); |
726f6388 JA |
2302 | |
2303 | if (start_len == 1) | |
28ef6c31 | 2304 | value[0] = *orig_start; |
726f6388 | 2305 | else |
28ef6c31 | 2306 | strncpy (value, orig_start, start_len); |
726f6388 JA |
2307 | |
2308 | strcpy (value + start_len, matches[cmd_index]); | |
2309 | ||
2310 | cmd_index++; | |
2311 | return (value); | |
2312 | } | |
2313 | } | |
2314 | ||
2315 | /* Okay, now we write the entry_function for variable completion. */ | |
2316 | static char * | |
2317 | variable_completion_function (text, state) | |
28ef6c31 | 2318 | const char *text; |
726f6388 | 2319 | int state; |
726f6388 | 2320 | { |
bb70624e | 2321 | static char **varlist = (char **)NULL; |
726f6388 JA |
2322 | static int varlist_index; |
2323 | static char *varname = (char *)NULL; | |
726f6388 JA |
2324 | static int first_char, first_char_loc; |
2325 | ||
2326 | if (!state) | |
2327 | { | |
2328 | if (varname) | |
2329 | free (varname); | |
2330 | ||
2331 | first_char_loc = 0; | |
2332 | first_char = text[0]; | |
2333 | ||
2334 | if (first_char == '$') | |
2335 | first_char_loc++; | |
2336 | ||
ccc6cda3 | 2337 | if (text[first_char_loc] == '{') |
28ef6c31 | 2338 | first_char_loc++; |
ccc6cda3 | 2339 | |
726f6388 JA |
2340 | varname = savestring (text + first_char_loc); |
2341 | ||
726f6388 | 2342 | if (varlist) |
7117c2d2 | 2343 | strvec_dispose (varlist); |
726f6388 | 2344 | |
bb70624e JA |
2345 | varlist = all_variables_matching_prefix (varname); |
2346 | varlist_index = 0; | |
726f6388 JA |
2347 | } |
2348 | ||
2349 | if (!varlist || !varlist[varlist_index]) | |
2350 | { | |
2351 | return ((char *)NULL); | |
2352 | } | |
2353 | else | |
2354 | { | |
f73dda09 JA |
2355 | char *value; |
2356 | ||
2357 | value = (char *)xmalloc (4 + strlen (varlist[varlist_index])); | |
726f6388 JA |
2358 | |
2359 | if (first_char_loc) | |
ccc6cda3 JA |
2360 | { |
2361 | value[0] = first_char; | |
2362 | if (first_char_loc == 2) | |
2363 | value[1] = '{'; | |
2364 | } | |
726f6388 | 2365 | |
bb70624e | 2366 | strcpy (value + first_char_loc, varlist[varlist_index]); |
ccc6cda3 | 2367 | if (first_char_loc == 2) |
28ef6c31 | 2368 | strcat (value, "}"); |
726f6388 JA |
2369 | |
2370 | varlist_index++; | |
2371 | return (value); | |
2372 | } | |
2373 | } | |
2374 | ||
2375 | /* How about a completion function for hostnames? */ | |
2376 | static char * | |
2377 | hostname_completion_function (text, state) | |
28ef6c31 | 2378 | const char *text; |
726f6388 | 2379 | int state; |
726f6388 JA |
2380 | { |
2381 | static char **list = (char **)NULL; | |
2382 | static int list_index = 0; | |
2383 | static int first_char, first_char_loc; | |
2384 | ||
2385 | /* If we don't have any state, make some. */ | |
ccc6cda3 | 2386 | if (state == 0) |
726f6388 | 2387 | { |
ccc6cda3 | 2388 | FREE (list); |
726f6388 JA |
2389 | |
2390 | list = (char **)NULL; | |
2391 | ||
2392 | first_char_loc = 0; | |
2393 | first_char = *text; | |
2394 | ||
2395 | if (first_char == '@') | |
2396 | first_char_loc++; | |
2397 | ||
f73dda09 | 2398 | list = hostnames_matching ((char *)text+first_char_loc); |
726f6388 JA |
2399 | list_index = 0; |
2400 | } | |
2401 | ||
2402 | if (list && list[list_index]) | |
2403 | { | |
ccc6cda3 | 2404 | char *t; |
726f6388 | 2405 | |
f73dda09 | 2406 | t = (char *)xmalloc (2 + strlen (list[list_index])); |
726f6388 JA |
2407 | *t = first_char; |
2408 | strcpy (t + first_char_loc, list[list_index]); | |
2409 | list_index++; | |
2410 | return (t); | |
2411 | } | |
ccc6cda3 JA |
2412 | |
2413 | return ((char *)NULL); | |
726f6388 JA |
2414 | } |
2415 | ||
7117c2d2 JA |
2416 | /* |
2417 | * A completion function for service names from /etc/services (or wherever). | |
2418 | */ | |
2419 | char * | |
2420 | bash_servicename_completion_function (text, state) | |
2421 | const char *text; | |
2422 | int state; | |
2423 | { | |
2424 | #if defined (__WIN32__) || defined (__OPENNT) || !defined (HAVE_GETSERVENT) | |
2425 | return ((char *)NULL); | |
2426 | #else | |
2427 | static char *sname = (char *)NULL; | |
2428 | static struct servent *srvent; | |
d233b485 | 2429 | static int snamelen; |
7117c2d2 JA |
2430 | char *value; |
2431 | char **alist, *aentry; | |
2432 | int afound; | |
2433 | ||
2434 | if (state == 0) | |
2435 | { | |
2436 | FREE (sname); | |
7117c2d2 JA |
2437 | |
2438 | sname = savestring (text); | |
2439 | snamelen = strlen (sname); | |
2440 | setservent (0); | |
2441 | } | |
2442 | ||
2443 | while (srvent = getservent ()) | |
2444 | { | |
2445 | afound = 0; | |
2446 | if (snamelen == 0 || (STREQN (sname, srvent->s_name, snamelen))) | |
2447 | break; | |
2448 | /* Not primary, check aliases */ | |
0628567a | 2449 | for (alist = srvent->s_aliases; *alist; alist++) |
7117c2d2 | 2450 | { |
0628567a | 2451 | aentry = *alist; |
7117c2d2 JA |
2452 | if (STREQN (sname, aentry, snamelen)) |
2453 | { | |
2454 | afound = 1; | |
2455 | break; | |
2456 | } | |
2457 | } | |
2458 | ||
2459 | if (afound) | |
2460 | break; | |
2461 | } | |
2462 | ||
2463 | if (srvent == 0) | |
2464 | { | |
2465 | endservent (); | |
2466 | return ((char *)NULL); | |
2467 | } | |
2468 | ||
2469 | value = afound ? savestring (aentry) : savestring (srvent->s_name); | |
2470 | return value; | |
2471 | #endif | |
2472 | } | |
2473 | ||
2474 | /* | |
2475 | * A completion function for group names from /etc/group (or wherever). | |
2476 | */ | |
f73dda09 JA |
2477 | char * |
2478 | bash_groupname_completion_function (text, state) | |
2479 | const char *text; | |
2480 | int state; | |
2481 | { | |
2482 | #if defined (__WIN32__) || defined (__OPENNT) || !defined (HAVE_GRP_H) | |
2483 | return ((char *)NULL); | |
2484 | #else | |
2485 | static char *gname = (char *)NULL; | |
2486 | static struct group *grent; | |
2487 | static int gnamelen; | |
2488 | char *value; | |
2489 | ||
2490 | if (state == 0) | |
2491 | { | |
2492 | FREE (gname); | |
2493 | gname = savestring (text); | |
2494 | gnamelen = strlen (gname); | |
2495 | ||
2496 | setgrent (); | |
2497 | } | |
2498 | ||
2499 | while (grent = getgrent ()) | |
2500 | { | |
2501 | if (gnamelen == 0 || (STREQN (gname, grent->gr_name, gnamelen))) | |
2502 | break; | |
2503 | } | |
2504 | ||
2505 | if (grent == 0) | |
2506 | { | |
2507 | endgrent (); | |
2508 | return ((char *)NULL); | |
2509 | } | |
2510 | ||
2511 | value = savestring (grent->gr_name); | |
2512 | return (value); | |
2513 | #endif | |
2514 | } | |
2515 | ||
cce855bc JA |
2516 | /* Functions to perform history and alias expansions on the current line. */ |
2517 | ||
2518 | #if defined (BANG_HISTORY) | |
2519 | /* Perform history expansion on the current line. If no history expansion | |
2520 | is done, pre_process_line() returns what it was passed, so we need to | |
2521 | allocate a new line here. */ | |
726f6388 JA |
2522 | static char * |
2523 | history_expand_line_internal (line) | |
2524 | char *line; | |
2525 | { | |
2526 | char *new_line; | |
b80f6443 | 2527 | int old_verify; |
726f6388 | 2528 | |
b80f6443 JA |
2529 | old_verify = hist_verify; |
2530 | hist_verify = 0; | |
726f6388 | 2531 | new_line = pre_process_line (line, 0, 0); |
b80f6443 JA |
2532 | hist_verify = old_verify; |
2533 | ||
d166f048 | 2534 | return (new_line == line) ? savestring (line) : new_line; |
726f6388 | 2535 | } |
726f6388 JA |
2536 | #endif |
2537 | ||
2538 | /* There was an error in expansion. Let the preprocessor print | |
2539 | the error here. */ | |
2540 | static void | |
2541 | cleanup_expansion_error () | |
2542 | { | |
2543 | char *to_free; | |
b80f6443 JA |
2544 | #if defined (BANG_HISTORY) |
2545 | int old_verify; | |
2546 | ||
2547 | old_verify = hist_verify; | |
2548 | hist_verify = 0; | |
2549 | #endif | |
726f6388 JA |
2550 | |
2551 | fprintf (rl_outstream, "\r\n"); | |
2552 | to_free = pre_process_line (rl_line_buffer, 1, 0); | |
b80f6443 JA |
2553 | #if defined (BANG_HISTORY) |
2554 | hist_verify = old_verify; | |
2555 | #endif | |
d166f048 | 2556 | if (to_free != rl_line_buffer) |
b80f6443 | 2557 | FREE (to_free); |
726f6388 JA |
2558 | putc ('\r', rl_outstream); |
2559 | rl_forced_update_display (); | |
2560 | } | |
2561 | ||
2562 | /* If NEW_LINE differs from what is in the readline line buffer, add an | |
2563 | undo record to get from the readline line buffer contents to the new | |
2564 | line and make NEW_LINE the current readline line. */ | |
2565 | static void | |
2566 | maybe_make_readline_line (new_line) | |
2567 | char *new_line; | |
2568 | { | |
d233b485 | 2569 | if (new_line && strcmp (new_line, rl_line_buffer) != 0) |
726f6388 JA |
2570 | { |
2571 | rl_point = rl_end; | |
2572 | ||
2573 | rl_add_undo (UNDO_BEGIN, 0, 0, 0); | |
2574 | rl_delete_text (0, rl_point); | |
7117c2d2 | 2575 | rl_point = rl_end = rl_mark = 0; |
726f6388 JA |
2576 | rl_insert_text (new_line); |
2577 | rl_add_undo (UNDO_END, 0, 0, 0); | |
2578 | } | |
2579 | } | |
2580 | ||
2581 | /* Make NEW_LINE be the current readline line. This frees NEW_LINE. */ | |
2582 | static void | |
2583 | set_up_new_line (new_line) | |
2584 | char *new_line; | |
2585 | { | |
f73dda09 JA |
2586 | int old_point, at_end; |
2587 | ||
2588 | old_point = rl_point; | |
2589 | at_end = rl_point == rl_end; | |
726f6388 JA |
2590 | |
2591 | /* If the line was history and alias expanded, then make that | |
2592 | be one thing to undo. */ | |
2593 | maybe_make_readline_line (new_line); | |
2594 | free (new_line); | |
2595 | ||
2596 | /* Place rl_point where we think it should go. */ | |
2597 | if (at_end) | |
2598 | rl_point = rl_end; | |
2599 | else if (old_point < rl_end) | |
2600 | { | |
2601 | rl_point = old_point; | |
2602 | if (!whitespace (rl_line_buffer[rl_point])) | |
b72432fd | 2603 | rl_forward_word (1, 0); |
726f6388 JA |
2604 | } |
2605 | } | |
2606 | ||
cce855bc JA |
2607 | #if defined (ALIAS) |
2608 | /* Expand aliases in the current readline line. */ | |
2609 | static int | |
28ef6c31 JA |
2610 | alias_expand_line (count, ignore) |
2611 | int count, ignore; | |
cce855bc JA |
2612 | { |
2613 | char *new_line; | |
2614 | ||
2615 | new_line = alias_expand (rl_line_buffer); | |
2616 | ||
2617 | if (new_line) | |
2618 | { | |
2619 | set_up_new_line (new_line); | |
2620 | return (0); | |
2621 | } | |
2622 | else | |
2623 | { | |
2624 | cleanup_expansion_error (); | |
2625 | return (1); | |
2626 | } | |
2627 | } | |
2628 | #endif | |
2629 | ||
2630 | #if defined (BANG_HISTORY) | |
726f6388 | 2631 | /* History expand the line. */ |
cce855bc | 2632 | static int |
28ef6c31 JA |
2633 | history_expand_line (count, ignore) |
2634 | int count, ignore; | |
726f6388 JA |
2635 | { |
2636 | char *new_line; | |
2637 | ||
2638 | new_line = history_expand_line_internal (rl_line_buffer); | |
2639 | ||
2640 | if (new_line) | |
cce855bc JA |
2641 | { |
2642 | set_up_new_line (new_line); | |
2643 | return (0); | |
2644 | } | |
726f6388 | 2645 | else |
cce855bc JA |
2646 | { |
2647 | cleanup_expansion_error (); | |
2648 | return (1); | |
2649 | } | |
2650 | } | |
2651 | ||
2652 | /* Expand history substitutions in the current line and then insert a | |
28ef6c31 | 2653 | space (hopefully close to where we were before). */ |
cce855bc | 2654 | static int |
28ef6c31 JA |
2655 | tcsh_magic_space (count, ignore) |
2656 | int count, ignore; | |
cce855bc | 2657 | { |
28ef6c31 JA |
2658 | int dist_from_end, old_point; |
2659 | ||
2660 | old_point = rl_point; | |
2661 | dist_from_end = rl_end - rl_point; | |
2662 | if (history_expand_line (count, ignore) == 0) | |
cce855bc | 2663 | { |
28ef6c31 JA |
2664 | /* Try a simple heuristic from Stephen Gildea <gildea@intouchsys.com>. |
2665 | This works if all expansions were before rl_point or if no expansions | |
2666 | were performed. */ | |
2667 | rl_point = (old_point == 0) ? old_point : rl_end - dist_from_end; | |
cce855bc JA |
2668 | rl_insert (1, ' '); |
2669 | return (0); | |
2670 | } | |
2671 | else | |
2672 | return (1); | |
726f6388 | 2673 | } |
95732b49 | 2674 | #endif /* BANG_HISTORY */ |
ccc6cda3 | 2675 | |
726f6388 | 2676 | /* History and alias expand the line. */ |
cce855bc | 2677 | static int |
28ef6c31 JA |
2678 | history_and_alias_expand_line (count, ignore) |
2679 | int count, ignore; | |
726f6388 JA |
2680 | { |
2681 | char *new_line; | |
2682 | ||
95732b49 JA |
2683 | new_line = 0; |
2684 | #if defined (BANG_HISTORY) | |
b80f6443 | 2685 | new_line = history_expand_line_internal (rl_line_buffer); |
95732b49 | 2686 | #endif |
726f6388 JA |
2687 | |
2688 | #if defined (ALIAS) | |
2689 | if (new_line) | |
2690 | { | |
2691 | char *alias_line; | |
2692 | ||
2693 | alias_line = alias_expand (new_line); | |
2694 | free (new_line); | |
2695 | new_line = alias_line; | |
2696 | } | |
2697 | #endif /* ALIAS */ | |
2698 | ||
2699 | if (new_line) | |
cce855bc JA |
2700 | { |
2701 | set_up_new_line (new_line); | |
2702 | return (0); | |
2703 | } | |
726f6388 | 2704 | else |
cce855bc JA |
2705 | { |
2706 | cleanup_expansion_error (); | |
2707 | return (1); | |
2708 | } | |
726f6388 JA |
2709 | } |
2710 | ||
2711 | /* History and alias expand the line, then perform the shell word | |
cce855bc JA |
2712 | expansions by calling expand_string. This can't use set_up_new_line() |
2713 | because we want the variable expansions as a separate undo'able | |
2714 | set of operations. */ | |
28ef6c31 JA |
2715 | static int |
2716 | shell_expand_line (count, ignore) | |
2717 | int count, ignore; | |
726f6388 JA |
2718 | { |
2719 | char *new_line; | |
ccc6cda3 | 2720 | WORD_LIST *expanded_string; |
d233b485 | 2721 | WORD_DESC *w; |
726f6388 | 2722 | |
95732b49 JA |
2723 | new_line = 0; |
2724 | #if defined (BANG_HISTORY) | |
b80f6443 | 2725 | new_line = history_expand_line_internal (rl_line_buffer); |
95732b49 | 2726 | #endif |
726f6388 JA |
2727 | |
2728 | #if defined (ALIAS) | |
2729 | if (new_line) | |
2730 | { | |
2731 | char *alias_line; | |
2732 | ||
2733 | alias_line = alias_expand (new_line); | |
2734 | free (new_line); | |
2735 | new_line = alias_line; | |
2736 | } | |
2737 | #endif /* ALIAS */ | |
2738 | ||
2739 | if (new_line) | |
2740 | { | |
2741 | int old_point = rl_point; | |
2742 | int at_end = rl_point == rl_end; | |
2743 | ||
2744 | /* If the line was history and alias expanded, then make that | |
2745 | be one thing to undo. */ | |
2746 | maybe_make_readline_line (new_line); | |
2747 | free (new_line); | |
2748 | ||
2749 | /* If there is variable expansion to perform, do that as a separate | |
2750 | operation to be undone. */ | |
d233b485 CR |
2751 | |
2752 | #if 1 | |
2753 | w = alloc_word_desc (); | |
2754 | w->word = savestring (rl_line_buffer); | |
2755 | w->flags = rl_explicit_arg ? (W_NOPROCSUB|W_NOCOMSUB) : 0; | |
2756 | expanded_string = expand_word (w, rl_explicit_arg ? Q_HERE_DOCUMENT : 0); | |
2757 | dispose_word (w); | |
2758 | #else | |
d166f048 JA |
2759 | new_line = savestring (rl_line_buffer); |
2760 | expanded_string = expand_string (new_line, 0); | |
2761 | FREE (new_line); | |
d233b485 CR |
2762 | #endif |
2763 | ||
ccc6cda3 JA |
2764 | if (expanded_string == 0) |
2765 | { | |
f73dda09 | 2766 | new_line = (char *)xmalloc (1); |
ccc6cda3 JA |
2767 | new_line[0] = '\0'; |
2768 | } | |
2769 | else | |
2770 | { | |
2771 | new_line = string_list (expanded_string); | |
2772 | dispose_words (expanded_string); | |
2773 | } | |
726f6388 | 2774 | |
ccc6cda3 JA |
2775 | maybe_make_readline_line (new_line); |
2776 | free (new_line); | |
726f6388 | 2777 | |
ccc6cda3 JA |
2778 | /* Place rl_point where we think it should go. */ |
2779 | if (at_end) | |
2780 | rl_point = rl_end; | |
2781 | else if (old_point < rl_end) | |
2782 | { | |
2783 | rl_point = old_point; | |
2784 | if (!whitespace (rl_line_buffer[rl_point])) | |
b72432fd | 2785 | rl_forward_word (1, 0); |
ccc6cda3 | 2786 | } |
28ef6c31 | 2787 | return 0; |
726f6388 JA |
2788 | } |
2789 | else | |
28ef6c31 JA |
2790 | { |
2791 | cleanup_expansion_error (); | |
2792 | return 1; | |
2793 | } | |
726f6388 JA |
2794 | } |
2795 | ||
ccc6cda3 JA |
2796 | /* If FIGNORE is set, then don't match files with the given suffixes when |
2797 | completing filenames. If only one of the possibilities has an acceptable | |
726f6388 JA |
2798 | suffix, delete the others, else just return and let the completer |
2799 | signal an error. It is called by the completer when real | |
2800 | completions are done on filenames by the completer's internal | |
2801 | function, not for completion lists (M-?) and not on "other" | |
ccc6cda3 | 2802 | completion types, such as hostnames or commands. */ |
726f6388 | 2803 | |
ccc6cda3 | 2804 | static struct ignorevar fignore = |
726f6388 | 2805 | { |
ccc6cda3 JA |
2806 | "FIGNORE", |
2807 | (struct ign *)0, | |
2808 | 0, | |
2809 | (char *)0, | |
f73dda09 | 2810 | (sh_iv_item_func_t *) 0, |
ccc6cda3 | 2811 | }; |
726f6388 | 2812 | |
726f6388 | 2813 | static void |
ccc6cda3 | 2814 | _ignore_completion_names (names, name_func) |
726f6388 | 2815 | char **names; |
f73dda09 | 2816 | sh_ignore_func_t *name_func; |
726f6388 JA |
2817 | { |
2818 | char **newnames; | |
2819 | int idx, nidx; | |
cce855bc JA |
2820 | char **oldnames; |
2821 | int oidx; | |
726f6388 JA |
2822 | |
2823 | /* If there is only one completion, see if it is acceptable. If it is | |
2824 | not, free it up. In any case, short-circuit and return. This is a | |
2825 | special case because names[0] is not the prefix of the list of names | |
2826 | if there is only one completion; it is the completion itself. */ | |
2827 | if (names[1] == (char *)0) | |
2828 | { | |
b80f6443 JA |
2829 | if (force_fignore) |
2830 | if ((*name_func) (names[0]) == 0) | |
2831 | { | |
2832 | free (names[0]); | |
2833 | names[0] = (char *)NULL; | |
2834 | } | |
2835 | ||
726f6388 JA |
2836 | return; |
2837 | } | |
2838 | ||
2839 | /* Allocate space for array to hold list of pointers to matching | |
2840 | filenames. The pointers are copied back to NAMES when done. */ | |
2841 | for (nidx = 1; names[nidx]; nidx++) | |
2842 | ; | |
7117c2d2 | 2843 | newnames = strvec_create (nidx + 1); |
b80f6443 JA |
2844 | |
2845 | if (force_fignore == 0) | |
2846 | { | |
2847 | oldnames = strvec_create (nidx - 1); | |
2848 | oidx = 0; | |
2849 | } | |
726f6388 JA |
2850 | |
2851 | newnames[0] = names[0]; | |
2852 | for (idx = nidx = 1; names[idx]; idx++) | |
2853 | { | |
2854 | if ((*name_func) (names[idx])) | |
2855 | newnames[nidx++] = names[idx]; | |
b80f6443 JA |
2856 | else if (force_fignore == 0) |
2857 | oldnames[oidx++] = names[idx]; | |
726f6388 | 2858 | else |
28ef6c31 | 2859 | free (names[idx]); |
726f6388 JA |
2860 | } |
2861 | ||
2862 | newnames[nidx] = (char *)NULL; | |
2863 | ||
2864 | /* If none are acceptable then let the completer handle it. */ | |
2865 | if (nidx == 1) | |
2866 | { | |
b80f6443 JA |
2867 | if (force_fignore) |
2868 | { | |
2869 | free (names[0]); | |
2870 | names[0] = (char *)NULL; | |
2871 | } | |
2872 | else | |
2873 | free (oldnames); | |
2874 | ||
726f6388 JA |
2875 | free (newnames); |
2876 | return; | |
2877 | } | |
2878 | ||
b80f6443 JA |
2879 | if (force_fignore == 0) |
2880 | { | |
2881 | while (oidx) | |
2882 | free (oldnames[--oidx]); | |
2883 | free (oldnames); | |
2884 | } | |
cce855bc | 2885 | |
726f6388 JA |
2886 | /* If only one is acceptable, copy it to names[0] and return. */ |
2887 | if (nidx == 2) | |
2888 | { | |
2889 | free (names[0]); | |
2890 | names[0] = newnames[1]; | |
2891 | names[1] = (char *)NULL; | |
2892 | free (newnames); | |
2893 | return; | |
2894 | } | |
ccc6cda3 | 2895 | |
726f6388 JA |
2896 | /* Copy the acceptable names back to NAMES, set the new array end, |
2897 | and return. */ | |
2898 | for (nidx = 1; newnames[nidx]; nidx++) | |
2899 | names[nidx] = newnames[nidx]; | |
2900 | names[nidx] = (char *)NULL; | |
ccc6cda3 JA |
2901 | free (newnames); |
2902 | } | |
2903 | ||
2904 | static int | |
2905 | name_is_acceptable (name) | |
f73dda09 | 2906 | const char *name; |
ccc6cda3 JA |
2907 | { |
2908 | struct ign *p; | |
2909 | int nlen; | |
2910 | ||
2911 | for (nlen = strlen (name), p = fignore.ignores; p->val; p++) | |
2912 | { | |
2913 | if (nlen > p->len && p->len > 0 && STREQ (p->val, &name[nlen - p->len])) | |
2914 | return (0); | |
2915 | } | |
2916 | ||
2917 | return (1); | |
726f6388 JA |
2918 | } |
2919 | ||
b72432fd JA |
2920 | #if 0 |
2921 | static int | |
2922 | ignore_dot_names (name) | |
2923 | char *name; | |
2924 | { | |
2925 | return (name[0] != '.'); | |
2926 | } | |
2927 | #endif | |
2928 | ||
28ef6c31 | 2929 | static int |
726f6388 JA |
2930 | filename_completion_ignore (names) |
2931 | char **names; | |
2932 | { | |
b72432fd JA |
2933 | #if 0 |
2934 | if (glob_dot_filenames == 0) | |
2935 | _ignore_completion_names (names, ignore_dot_names); | |
2936 | #endif | |
2937 | ||
ccc6cda3 | 2938 | setup_ignore_patterns (&fignore); |
726f6388 | 2939 | |
ccc6cda3 | 2940 | if (fignore.num_ignores == 0) |
28ef6c31 | 2941 | return 0; |
726f6388 | 2942 | |
ccc6cda3 | 2943 | _ignore_completion_names (names, name_is_acceptable); |
28ef6c31 JA |
2944 | |
2945 | return 0; | |
726f6388 JA |
2946 | } |
2947 | ||
3185942a | 2948 | /* Return 1 if NAME is a directory. NAME undergoes tilde expansion. */ |
726f6388 JA |
2949 | static int |
2950 | test_for_directory (name) | |
f73dda09 | 2951 | const char *name; |
726f6388 | 2952 | { |
726f6388 | 2953 | char *fn; |
3185942a | 2954 | int r; |
726f6388 | 2955 | |
7117c2d2 | 2956 | fn = bash_tilde_expand (name, 0); |
3185942a | 2957 | r = file_isdir (fn); |
726f6388 | 2958 | free (fn); |
3185942a JA |
2959 | |
2960 | return (r); | |
726f6388 JA |
2961 | } |
2962 | ||
2963 | /* Remove files from NAMES, leaving directories. */ | |
28ef6c31 | 2964 | static int |
726f6388 JA |
2965 | bash_ignore_filenames (names) |
2966 | char **names; | |
2967 | { | |
ccc6cda3 | 2968 | _ignore_completion_names (names, test_for_directory); |
28ef6c31 | 2969 | return 0; |
726f6388 JA |
2970 | } |
2971 | ||
bb70624e JA |
2972 | static int |
2973 | return_zero (name) | |
f73dda09 | 2974 | const char *name; |
bb70624e JA |
2975 | { |
2976 | return 0; | |
2977 | } | |
2978 | ||
28ef6c31 | 2979 | static int |
bb70624e JA |
2980 | bash_ignore_everything (names) |
2981 | char **names; | |
2982 | { | |
2983 | _ignore_completion_names (names, return_zero); | |
28ef6c31 | 2984 | return 0; |
bb70624e JA |
2985 | } |
2986 | ||
3185942a JA |
2987 | /* Replace a tilde-prefix in VAL with a `~', assuming the user typed it. VAL |
2988 | is an expanded filename. DIRECTORY_PART is the tilde-prefix portion | |
2989 | of the un-tilde-expanded version of VAL (what the user typed). */ | |
2990 | static char * | |
2991 | restore_tilde (val, directory_part) | |
2992 | char *val, *directory_part; | |
2993 | { | |
2994 | int l, vl, dl2, xl; | |
d233b485 | 2995 | char *dh2, *expdir, *ret, *v; |
3185942a JA |
2996 | |
2997 | vl = strlen (val); | |
2998 | ||
2999 | /* We need to duplicate the expansions readline performs on the directory | |
3000 | portion before passing it to our completion function. */ | |
3001 | dh2 = directory_part ? bash_dequote_filename (directory_part, 0) : 0; | |
3002 | bash_directory_expansion (&dh2); | |
3003 | dl2 = strlen (dh2); | |
3004 | ||
3005 | expdir = bash_tilde_expand (directory_part, 0); | |
3006 | xl = strlen (expdir); | |
d233b485 CR |
3007 | if (*directory_part == '~' && STREQ (directory_part, expdir)) |
3008 | { | |
3009 | /* tilde expansion failed, so what should we return? we use what the | |
3010 | user typed. */ | |
3011 | v = mbschr (val, '/'); | |
3012 | vl = STRLEN (v); | |
3013 | ret = (char *)xmalloc (xl + vl + 2); | |
3014 | strcpy (ret, directory_part); | |
3015 | if (v && *v) | |
3016 | strcpy (ret + xl, v); | |
3017 | ||
3018 | free (dh2); | |
3019 | free (expdir); | |
3020 | ||
3021 | return ret; | |
3022 | } | |
3185942a JA |
3023 | free (expdir); |
3024 | ||
3025 | /* | |
3026 | dh2 = unexpanded but dequoted tilde-prefix | |
3027 | dl2 = length of tilde-prefix | |
3028 | expdir = tilde-expanded tilde-prefix | |
3029 | xl = length of expanded tilde-prefix | |
3030 | l = length of remainder after tilde-prefix | |
3031 | */ | |
3032 | l = (vl - xl) + 1; | |
d233b485 CR |
3033 | if (l <= 0) |
3034 | { | |
3035 | free (dh2); | |
3036 | return (savestring (val)); /* XXX - just punt */ | |
3037 | } | |
3185942a JA |
3038 | |
3039 | ret = (char *)xmalloc (dl2 + 2 + l); | |
3040 | strcpy (ret, dh2); | |
3041 | strcpy (ret + dl2, val + xl); | |
3042 | ||
3043 | free (dh2); | |
3044 | return (ret); | |
3045 | } | |
3046 | ||
ac50fbac CR |
3047 | static char * |
3048 | maybe_restore_tilde (val, directory_part) | |
3049 | char *val, *directory_part; | |
3050 | { | |
3051 | rl_icppfunc_t *save; | |
3052 | char *ret; | |
3053 | ||
3054 | save = (dircomplete_expand == 0) ? save_directory_hook () : (rl_icppfunc_t *)0; | |
3055 | ret = restore_tilde (val, directory_part); | |
3056 | if (save) | |
3057 | restore_directory_hook (save); | |
3058 | return ret; | |
3059 | } | |
3060 | ||
eb873671 JA |
3061 | /* Simulate the expansions that will be performed by |
3062 | rl_filename_completion_function. This must be called with the address of | |
3063 | a pointer to malloc'd memory. */ | |
95732b49 | 3064 | static void |
eb873671 JA |
3065 | bash_directory_expansion (dirname) |
3066 | char **dirname; | |
3067 | { | |
0628567a | 3068 | char *d, *nd; |
eb873671 JA |
3069 | |
3070 | d = savestring (*dirname); | |
3071 | ||
ac50fbac CR |
3072 | if ((rl_directory_rewrite_hook) && (*rl_directory_rewrite_hook) (&d)) |
3073 | { | |
3074 | free (*dirname); | |
3075 | *dirname = d; | |
3076 | } | |
495aee44 | 3077 | else if (rl_directory_completion_hook && (*rl_directory_completion_hook) (&d)) |
eb873671 JA |
3078 | { |
3079 | free (*dirname); | |
3080 | *dirname = d; | |
3081 | } | |
0628567a JA |
3082 | else if (rl_completion_found_quote) |
3083 | { | |
3084 | nd = bash_dequote_filename (d, rl_completion_quote_character); | |
3085 | free (*dirname); | |
3086 | free (d); | |
3087 | *dirname = nd; | |
3088 | } | |
eb873671 | 3089 | } |
3185942a | 3090 | |
0001803f CR |
3091 | /* If necessary, rewrite directory entry */ |
3092 | static char * | |
3093 | bash_filename_rewrite_hook (fname, fnlen) | |
3094 | char *fname; | |
3095 | int fnlen; | |
3096 | { | |
3097 | char *conv; | |
3098 | ||
3099 | conv = fnx_fromfs (fname, fnlen); | |
3100 | if (conv != fname) | |
3101 | conv = savestring (conv); | |
3102 | return conv; | |
3103 | } | |
3104 | ||
16b2d7f4 CR |
3105 | /* Functions to save and restore the appropriate directory hook */ |
3106 | /* This is not static so the shopt code can call it */ | |
3107 | void | |
3108 | set_directory_hook () | |
3109 | { | |
3110 | if (dircomplete_expand) | |
3111 | { | |
3112 | rl_directory_completion_hook = bash_directory_completion_hook; | |
3113 | rl_directory_rewrite_hook = (rl_icppfunc_t *)0; | |
3114 | } | |
3115 | else | |
3116 | { | |
3117 | rl_directory_rewrite_hook = bash_directory_completion_hook; | |
3118 | rl_directory_completion_hook = (rl_icppfunc_t *)0; | |
3119 | } | |
3120 | } | |
3121 | ||
3122 | static rl_icppfunc_t * | |
3123 | save_directory_hook () | |
3124 | { | |
3125 | rl_icppfunc_t *ret; | |
3126 | ||
3127 | if (dircomplete_expand) | |
3128 | { | |
3129 | ret = rl_directory_completion_hook; | |
3130 | rl_directory_completion_hook = (rl_icppfunc_t *)NULL; | |
3131 | } | |
3132 | else | |
3133 | { | |
3134 | ret = rl_directory_rewrite_hook; | |
3135 | rl_directory_rewrite_hook = (rl_icppfunc_t *)NULL; | |
3136 | } | |
3137 | ||
3138 | return ret; | |
3139 | } | |
3140 | ||
3141 | static void | |
3142 | restore_directory_hook (hookf) | |
3143 | rl_icppfunc_t *hookf; | |
3144 | { | |
3145 | if (dircomplete_expand) | |
3146 | rl_directory_completion_hook = hookf; | |
3147 | else | |
3148 | rl_directory_rewrite_hook = hookf; | |
3149 | } | |
3150 | ||
4f747edc CR |
3151 | /* Check whether not DIRNAME, with any trailing slash removed, exists. If |
3152 | SHOULD_DEQUOTE is non-zero, we dequote the directory name first. */ | |
a0c0a00f | 3153 | static int |
4f747edc | 3154 | directory_exists (dirname, should_dequote) |
a0c0a00f | 3155 | const char *dirname; |
4f747edc | 3156 | int should_dequote; |
a0c0a00f CR |
3157 | { |
3158 | char *new_dirname; | |
3159 | int dirlen, r; | |
3160 | struct stat sb; | |
3161 | ||
4f747edc CR |
3162 | /* We save the string and chop the trailing slash because stat/lstat behave |
3163 | inconsistently if one is present. */ | |
3164 | new_dirname = should_dequote ? bash_dequote_filename ((char *)dirname, rl_completion_quote_character) : savestring (dirname); | |
a0c0a00f CR |
3165 | dirlen = STRLEN (new_dirname); |
3166 | if (new_dirname[dirlen - 1] == '/') | |
3167 | new_dirname[dirlen - 1] = '\0'; | |
3168 | #if defined (HAVE_LSTAT) | |
3169 | r = lstat (new_dirname, &sb) == 0; | |
3170 | #else | |
3171 | r = stat (new_dirname, &sb) == 0; | |
3172 | #endif | |
3173 | free (new_dirname); | |
3174 | return (r); | |
3175 | } | |
3176 | ||
ac50fbac CR |
3177 | /* Expand a filename before the readline completion code passes it to stat(2). |
3178 | The filename will already have had tilde expansion performed. */ | |
3179 | static int | |
3180 | bash_filename_stat_hook (dirname) | |
3181 | char **dirname; | |
3182 | { | |
3183 | char *local_dirname, *new_dirname, *t; | |
3184 | int should_expand_dirname, return_value; | |
a0c0a00f | 3185 | int global_nounset; |
ac50fbac | 3186 | WORD_LIST *wl; |
ac50fbac CR |
3187 | |
3188 | local_dirname = *dirname; | |
3189 | should_expand_dirname = return_value = 0; | |
3190 | if (t = mbschr (local_dirname, '$')) | |
3191 | should_expand_dirname = '$'; | |
3192 | else if (t = mbschr (local_dirname, '`')) /* XXX */ | |
3193 | should_expand_dirname = '`'; | |
3194 | ||
4f747edc | 3195 | if (should_expand_dirname && directory_exists (local_dirname, 0)) |
ac50fbac CR |
3196 | should_expand_dirname = 0; |
3197 | ||
3198 | if (should_expand_dirname) | |
3199 | { | |
3200 | new_dirname = savestring (local_dirname); | |
a0c0a00f CR |
3201 | /* no error messages, and expand_prompt_string doesn't longjmp so we don't |
3202 | have to worry about restoring this setting. */ | |
3203 | global_nounset = unbound_vars_is_error; | |
3204 | unbound_vars_is_error = 0; | |
4f747edc | 3205 | wl = expand_prompt_string (new_dirname, 0, W_NOCOMSUB|W_NOPROCSUB|W_COMPLETE); /* does the right thing */ |
a0c0a00f | 3206 | unbound_vars_is_error = global_nounset; |
ac50fbac CR |
3207 | if (wl) |
3208 | { | |
3209 | free (new_dirname); | |
3210 | new_dirname = string_list (wl); | |
3211 | /* Tell the completer we actually expanded something and change | |
3212 | *dirname only if we expanded to something non-null -- stat | |
3213 | behaves unpredictably when passed null or empty strings */ | |
3214 | if (new_dirname && *new_dirname) | |
3215 | { | |
3216 | free (local_dirname); /* XXX */ | |
3217 | local_dirname = *dirname = new_dirname; | |
3218 | return_value = STREQ (local_dirname, *dirname) == 0; | |
3219 | } | |
3220 | else | |
3221 | free (new_dirname); | |
3222 | dispose_words (wl); | |
3223 | } | |
3224 | else | |
3225 | free (new_dirname); | |
3226 | } | |
3227 | ||
3228 | /* This is very similar to the code in bash_directory_completion_hook below, | |
3229 | but without spelling correction and not worrying about whether or not | |
3230 | we change relative pathnames. */ | |
3231 | if (no_symbolic_links == 0 && (local_dirname[0] != '.' || local_dirname[1])) | |
3232 | { | |
3233 | char *temp1, *temp2; | |
3234 | ||
3235 | t = get_working_directory ("symlink-hook"); | |
3236 | temp1 = make_absolute (local_dirname, t); | |
3237 | free (t); | |
3238 | temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); | |
3239 | ||
3240 | /* If we can't canonicalize, bail. */ | |
3241 | if (temp2 == 0) | |
3242 | { | |
3243 | free (temp1); | |
3244 | return return_value; | |
3245 | } | |
3246 | ||
3247 | free (local_dirname); | |
3248 | *dirname = temp2; | |
3249 | free (temp1); | |
3250 | } | |
3251 | ||
3252 | return (return_value); | |
3253 | } | |
3254 | ||
726f6388 | 3255 | /* Handle symbolic link references and other directory name |
495aee44 CR |
3256 | expansions while hacking completion. This should return 1 if it modifies |
3257 | the DIRNAME argument, 0 otherwise. It should make sure not to modify | |
3258 | DIRNAME if it returns 0. */ | |
726f6388 JA |
3259 | static int |
3260 | bash_directory_completion_hook (dirname) | |
3261 | char **dirname; | |
3262 | { | |
b72432fd | 3263 | char *local_dirname, *new_dirname, *t; |
d233b485 | 3264 | int return_value, should_expand_dirname, nextch, closer; |
726f6388 JA |
3265 | WORD_LIST *wl; |
3266 | ||
16b2d7f4 | 3267 | return_value = should_expand_dirname = nextch = closer = 0; |
726f6388 | 3268 | local_dirname = *dirname; |
bb70624e | 3269 | |
16b2d7f4 CR |
3270 | if (t = mbschr (local_dirname, '$')) |
3271 | { | |
3272 | should_expand_dirname = '$'; | |
3273 | nextch = t[1]; | |
3274 | /* Deliberately does not handle the deprecated $[...] arithmetic | |
3275 | expansion syntax */ | |
3276 | if (nextch == '(') | |
3277 | closer = ')'; | |
3278 | else if (nextch == '{') | |
3279 | closer = '}'; | |
3280 | else | |
3281 | nextch = 0; | |
d233b485 CR |
3282 | |
3283 | if (closer) | |
3284 | { | |
3285 | int p; | |
3286 | char delims[2]; | |
3287 | ||
3288 | delims[0] = closer; delims[1] = 0; | |
3289 | p = skip_to_delim (t, 1, delims, SD_NOJMP|SD_COMPLETE); | |
3290 | if (t[p] != closer) | |
3291 | should_expand_dirname = 0; | |
3292 | } | |
16b2d7f4 | 3293 | } |
ac50fbac CR |
3294 | else if (local_dirname[0] == '~') |
3295 | should_expand_dirname = '~'; | |
bb70624e JA |
3296 | else |
3297 | { | |
0001803f | 3298 | t = mbschr (local_dirname, '`'); |
bb70624e | 3299 | if (t && unclosed_pair (local_dirname, strlen (local_dirname), "`") == 0) |
16b2d7f4 | 3300 | should_expand_dirname = '`'; |
bb70624e | 3301 | } |
bb70624e | 3302 | |
4f747edc | 3303 | if (should_expand_dirname && directory_exists (local_dirname, 1)) |
b80f6443 JA |
3304 | should_expand_dirname = 0; |
3305 | ||
bb70624e | 3306 | if (should_expand_dirname) |
726f6388 | 3307 | { |
bb70624e | 3308 | new_dirname = savestring (local_dirname); |
4f747edc | 3309 | wl = expand_prompt_string (new_dirname, 0, W_NOCOMSUB|W_NOPROCSUB|W_COMPLETE); /* does the right thing */ |
726f6388 JA |
3310 | if (wl) |
3311 | { | |
3312 | *dirname = string_list (wl); | |
3313 | /* Tell the completer to replace the directory name only if we | |
3314 | actually expanded something. */ | |
3315 | return_value = STREQ (local_dirname, *dirname) == 0; | |
3316 | free (local_dirname); | |
b72432fd | 3317 | free (new_dirname); |
726f6388 JA |
3318 | dispose_words (wl); |
3319 | local_dirname = *dirname; | |
16b2d7f4 CR |
3320 | /* XXX - change rl_filename_quote_characters here based on |
3321 | should_expand_dirname/nextch/closer. This is the only place | |
3322 | custom_filename_quote_characters is modified. */ | |
3323 | if (rl_filename_quote_characters && *rl_filename_quote_characters) | |
3324 | { | |
3325 | int i, j, c; | |
3326 | i = strlen (default_filename_quote_characters); | |
3327 | custom_filename_quote_characters = xrealloc (custom_filename_quote_characters, i+1); | |
3328 | for (i = j = 0; c = default_filename_quote_characters[i]; i++) | |
3329 | { | |
3330 | if (c == should_expand_dirname || c == nextch || c == closer) | |
3331 | continue; | |
3332 | custom_filename_quote_characters[j++] = c; | |
3333 | } | |
3334 | custom_filename_quote_characters[j] = '\0'; | |
3335 | rl_filename_quote_characters = custom_filename_quote_characters; | |
ac50fbac | 3336 | set_filename_bstab (rl_filename_quote_characters); |
16b2d7f4 | 3337 | } |
726f6388 JA |
3338 | } |
3339 | else | |
3340 | { | |
b72432fd | 3341 | free (new_dirname); |
726f6388 | 3342 | free (local_dirname); |
f73dda09 | 3343 | *dirname = (char *)xmalloc (1); |
ccc6cda3 | 3344 | **dirname = '\0'; |
726f6388 JA |
3345 | return 1; |
3346 | } | |
3347 | } | |
0628567a JA |
3348 | else |
3349 | { | |
3350 | /* Dequote the filename even if we don't expand it. */ | |
3351 | new_dirname = bash_dequote_filename (local_dirname, rl_completion_quote_character); | |
495aee44 | 3352 | return_value = STREQ (local_dirname, new_dirname) == 0; |
0628567a JA |
3353 | free (local_dirname); |
3354 | local_dirname = *dirname = new_dirname; | |
3355 | } | |
726f6388 | 3356 | |
16b2d7f4 CR |
3357 | /* no_symbolic_links == 0 -> use (default) logical view of the file system. |
3358 | local_dirname[0] == '.' && local_dirname[1] == '/' means files in the | |
3359 | current directory (./). | |
3360 | local_dirname[0] == '.' && local_dirname[1] == 0 means relative pathnames | |
3361 | in the current directory (e.g., lib/sh). | |
3362 | XXX - should we do spelling correction on these? */ | |
3363 | ||
3364 | /* This is test as it was in bash-4.2: skip relative pathnames in current | |
3365 | directory. Change test to | |
3366 | (local_dirname[0] != '.' || (local_dirname[1] && local_dirname[1] != '/')) | |
3367 | if we want to skip paths beginning with ./ also. */ | |
3185942a | 3368 | if (no_symbolic_links == 0 && (local_dirname[0] != '.' || local_dirname[1])) |
726f6388 JA |
3369 | { |
3370 | char *temp1, *temp2; | |
3371 | int len1, len2; | |
3372 | ||
16b2d7f4 CR |
3373 | /* If we have a relative path |
3374 | (local_dirname[0] != '/' && local_dirname[0] != '.') | |
3375 | that is canonical after appending it to the current directory, then | |
3376 | temp1 = temp2+'/' | |
3377 | That is, | |
3378 | strcmp (temp1, temp2) == 0 | |
3379 | after adding a slash to temp2 below. It should be safe to not | |
3380 | change those. | |
3381 | */ | |
726f6388 JA |
3382 | t = get_working_directory ("symlink-hook"); |
3383 | temp1 = make_absolute (local_dirname, t); | |
3384 | free (t); | |
28ef6c31 | 3385 | temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); |
3185942a | 3386 | |
ac50fbac CR |
3387 | /* Try spelling correction if initial canonicalization fails. Make |
3388 | sure we are set to replace the directory name with the results so | |
3389 | subsequent directory checks don't fail. */ | |
3390 | if (temp2 == 0 && dircomplete_spelling && dircomplete_expand) | |
3185942a JA |
3391 | { |
3392 | temp2 = dirspell (temp1); | |
3393 | if (temp2) | |
3394 | { | |
3395 | free (temp1); | |
3396 | temp1 = temp2; | |
3397 | temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); | |
495aee44 | 3398 | return_value |= temp2 != 0; |
3185942a JA |
3399 | } |
3400 | } | |
ccc6cda3 JA |
3401 | /* If we can't canonicalize, bail. */ |
3402 | if (temp2 == 0) | |
3403 | { | |
3404 | free (temp1); | |
495aee44 | 3405 | return return_value; |
ccc6cda3 | 3406 | } |
726f6388 JA |
3407 | len1 = strlen (temp1); |
3408 | if (temp1[len1 - 1] == '/') | |
28ef6c31 | 3409 | { |
726f6388 | 3410 | len2 = strlen (temp2); |
95732b49 JA |
3411 | if (len2 > 2) /* don't append `/' to `/' or `//' */ |
3412 | { | |
3413 | temp2 = (char *)xrealloc (temp2, len2 + 2); | |
3414 | temp2[len2] = '/'; | |
3415 | temp2[len2 + 1] = '\0'; | |
3416 | } | |
28ef6c31 | 3417 | } |
16b2d7f4 CR |
3418 | |
3419 | /* dircomplete_expand_relpath == 0 means we want to leave relative | |
3420 | pathnames that are unchanged by canonicalization alone. | |
3421 | *local_dirname != '/' && *local_dirname != '.' == relative pathname | |
3422 | (consistent with general.c:absolute_pathname()) | |
3423 | temp1 == temp2 (after appending a slash to temp2) means the pathname | |
3424 | is not changed by canonicalization as described above. */ | |
3425 | if (dircomplete_expand_relpath || ((local_dirname[0] != '/' && local_dirname[0] != '.') && STREQ (temp1, temp2) == 0)) | |
3426 | return_value |= STREQ (local_dirname, temp2) == 0; | |
726f6388 JA |
3427 | free (local_dirname); |
3428 | *dirname = temp2; | |
3429 | free (temp1); | |
3430 | } | |
495aee44 | 3431 | |
726f6388 JA |
3432 | return (return_value); |
3433 | } | |
3434 | ||
726f6388 | 3435 | static char **history_completion_array = (char **)NULL; |
ccc6cda3 JA |
3436 | static int harry_size; |
3437 | static int harry_len; | |
726f6388 JA |
3438 | |
3439 | static void | |
3440 | build_history_completion_array () | |
3441 | { | |
ccc6cda3 JA |
3442 | register int i, j; |
3443 | HIST_ENTRY **hlist; | |
3444 | char **tokens; | |
726f6388 JA |
3445 | |
3446 | /* First, clear out the current dynamic history completion list. */ | |
3447 | if (harry_size) | |
3448 | { | |
7117c2d2 | 3449 | strvec_dispose (history_completion_array); |
726f6388 JA |
3450 | history_completion_array = (char **)NULL; |
3451 | harry_size = 0; | |
3452 | harry_len = 0; | |
3453 | } | |
3454 | ||
3455 | /* Next, grovel each line of history, making each shell-sized token | |
3456 | a separate entry in the history_completion_array. */ | |
ccc6cda3 | 3457 | hlist = history_list (); |
726f6388 | 3458 | |
ccc6cda3 JA |
3459 | if (hlist) |
3460 | { | |
3461 | for (i = 0; hlist[i]; i++) | |
0001803f CR |
3462 | ; |
3463 | for ( --i; i >= 0; i--) | |
ccc6cda3 JA |
3464 | { |
3465 | /* Separate each token, and place into an array. */ | |
3466 | tokens = history_tokenize (hlist[i]->line); | |
726f6388 | 3467 | |
ccc6cda3 JA |
3468 | for (j = 0; tokens && tokens[j]; j++) |
3469 | { | |
3470 | if (harry_len + 2 > harry_size) | |
7117c2d2 | 3471 | history_completion_array = strvec_resize (history_completion_array, harry_size += 10); |
726f6388 | 3472 | |
ccc6cda3 JA |
3473 | history_completion_array[harry_len++] = tokens[j]; |
3474 | history_completion_array[harry_len] = (char *)NULL; | |
3475 | } | |
3476 | free (tokens); | |
3477 | } | |
726f6388 | 3478 | |
ccc6cda3 | 3479 | /* Sort the complete list of tokens. */ |
0001803f CR |
3480 | if (dabbrev_expand_active == 0) |
3481 | qsort (history_completion_array, harry_len, sizeof (char *), (QSFUNC *)strvec_strcmp); | |
ccc6cda3 | 3482 | } |
726f6388 JA |
3483 | } |
3484 | ||
3485 | static char * | |
3486 | history_completion_generator (hint_text, state) | |
f73dda09 | 3487 | const char *hint_text; |
726f6388 JA |
3488 | int state; |
3489 | { | |
ccc6cda3 | 3490 | static int local_index, len; |
f73dda09 | 3491 | static const char *text; |
726f6388 JA |
3492 | |
3493 | /* If this is the first call to the generator, then initialize the | |
3494 | list of strings to complete over. */ | |
ccc6cda3 | 3495 | if (state == 0) |
726f6388 | 3496 | { |
0001803f CR |
3497 | if (dabbrev_expand_active) /* This is kind of messy */ |
3498 | rl_completion_suppress_append = 1; | |
726f6388 JA |
3499 | local_index = 0; |
3500 | build_history_completion_array (); | |
3501 | text = hint_text; | |
3502 | len = strlen (text); | |
3503 | } | |
3504 | ||
3505 | while (history_completion_array && history_completion_array[local_index]) | |
3506 | { | |
d233b485 | 3507 | /* XXX - should this use completion-ignore-case? */ |
726f6388 JA |
3508 | if (strncmp (text, history_completion_array[local_index++], len) == 0) |
3509 | return (savestring (history_completion_array[local_index - 1])); | |
3510 | } | |
3511 | return ((char *)NULL); | |
3512 | } | |
3513 | ||
28ef6c31 | 3514 | static int |
726f6388 JA |
3515 | dynamic_complete_history (count, key) |
3516 | int count, key; | |
3517 | { | |
f73dda09 | 3518 | int r; |
28ef6c31 JA |
3519 | rl_compentry_func_t *orig_func; |
3520 | rl_completion_func_t *orig_attempt_func; | |
495aee44 | 3521 | rl_compignore_func_t *orig_ignore_func; |
726f6388 JA |
3522 | |
3523 | orig_func = rl_completion_entry_function; | |
3524 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3525 | orig_ignore_func = rl_ignore_some_completions_function; |
3185942a | 3526 | |
28ef6c31 JA |
3527 | rl_completion_entry_function = history_completion_generator; |
3528 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
495aee44 | 3529 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 | 3530 | |
7117c2d2 | 3531 | /* XXX - use rl_completion_mode here? */ |
28ef6c31 | 3532 | if (rl_last_func == dynamic_complete_history) |
f73dda09 | 3533 | r = rl_complete_internal ('?'); |
726f6388 | 3534 | else |
f73dda09 | 3535 | r = rl_complete_internal (TAB); |
726f6388 JA |
3536 | |
3537 | rl_completion_entry_function = orig_func; | |
3538 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 CR |
3539 | rl_ignore_some_completions_function = orig_ignore_func; |
3540 | ||
f73dda09 | 3541 | return r; |
726f6388 JA |
3542 | } |
3543 | ||
3185942a JA |
3544 | static int |
3545 | bash_dabbrev_expand (count, key) | |
3546 | int count, key; | |
3547 | { | |
0001803f | 3548 | int r, orig_suppress, orig_sort; |
3185942a JA |
3549 | rl_compentry_func_t *orig_func; |
3550 | rl_completion_func_t *orig_attempt_func; | |
495aee44 | 3551 | rl_compignore_func_t *orig_ignore_func; |
3185942a JA |
3552 | |
3553 | orig_func = rl_menu_completion_entry_function; | |
3554 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3555 | orig_ignore_func = rl_ignore_some_completions_function; |
0001803f CR |
3556 | orig_suppress = rl_completion_suppress_append; |
3557 | orig_sort = rl_sort_completion_matches; | |
3185942a JA |
3558 | |
3559 | rl_menu_completion_entry_function = history_completion_generator; | |
3560 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
495aee44 | 3561 | rl_ignore_some_completions_function = filename_completion_ignore; |
3185942a | 3562 | rl_filename_completion_desired = 0; |
0001803f CR |
3563 | rl_completion_suppress_append = 1; |
3564 | rl_sort_completion_matches = 0; | |
3185942a JA |
3565 | |
3566 | /* XXX - use rl_completion_mode here? */ | |
0001803f | 3567 | dabbrev_expand_active = 1; |
3185942a JA |
3568 | if (rl_last_func == bash_dabbrev_expand) |
3569 | rl_last_func = rl_menu_complete; | |
3570 | r = rl_menu_complete (count, key); | |
0001803f | 3571 | dabbrev_expand_active = 0; |
3185942a JA |
3572 | |
3573 | rl_last_func = bash_dabbrev_expand; | |
3574 | rl_menu_completion_entry_function = orig_func; | |
3575 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 | 3576 | rl_ignore_some_completions_function = orig_ignore_func; |
0001803f CR |
3577 | rl_completion_suppress_append = orig_suppress; |
3578 | rl_sort_completion_matches = orig_sort; | |
3185942a JA |
3579 | |
3580 | return r; | |
3581 | } | |
3582 | ||
726f6388 | 3583 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) |
28ef6c31 | 3584 | static int |
726f6388 JA |
3585 | bash_complete_username (ignore, ignore2) |
3586 | int ignore, ignore2; | |
3587 | { | |
7117c2d2 | 3588 | return bash_complete_username_internal (rl_completion_mode (bash_complete_username)); |
726f6388 JA |
3589 | } |
3590 | ||
28ef6c31 | 3591 | static int |
726f6388 JA |
3592 | bash_possible_username_completions (ignore, ignore2) |
3593 | int ignore, ignore2; | |
3594 | { | |
28ef6c31 | 3595 | return bash_complete_username_internal ('?'); |
726f6388 JA |
3596 | } |
3597 | ||
28ef6c31 | 3598 | static int |
726f6388 JA |
3599 | bash_complete_username_internal (what_to_do) |
3600 | int what_to_do; | |
3601 | { | |
28ef6c31 | 3602 | return bash_specific_completion (what_to_do, rl_username_completion_function); |
726f6388 JA |
3603 | } |
3604 | ||
28ef6c31 | 3605 | static int |
726f6388 JA |
3606 | bash_complete_filename (ignore, ignore2) |
3607 | int ignore, ignore2; | |
3608 | { | |
7117c2d2 | 3609 | return bash_complete_filename_internal (rl_completion_mode (bash_complete_filename)); |
726f6388 JA |
3610 | } |
3611 | ||
28ef6c31 | 3612 | static int |
726f6388 JA |
3613 | bash_possible_filename_completions (ignore, ignore2) |
3614 | int ignore, ignore2; | |
3615 | { | |
28ef6c31 | 3616 | return bash_complete_filename_internal ('?'); |
726f6388 JA |
3617 | } |
3618 | ||
28ef6c31 | 3619 | static int |
726f6388 JA |
3620 | bash_complete_filename_internal (what_to_do) |
3621 | int what_to_do; | |
3622 | { | |
28ef6c31 JA |
3623 | rl_compentry_func_t *orig_func; |
3624 | rl_completion_func_t *orig_attempt_func; | |
3625 | rl_icppfunc_t *orig_dir_func; | |
495aee44 | 3626 | rl_compignore_func_t *orig_ignore_func; |
b80f6443 | 3627 | /*const*/ char *orig_rl_completer_word_break_characters; |
28ef6c31 | 3628 | int r; |
726f6388 JA |
3629 | |
3630 | orig_func = rl_completion_entry_function; | |
3631 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3632 | orig_ignore_func = rl_ignore_some_completions_function; |
726f6388 | 3633 | orig_rl_completer_word_break_characters = rl_completer_word_break_characters; |
16b2d7f4 CR |
3634 | |
3635 | orig_dir_func = save_directory_hook (); | |
3636 | ||
28ef6c31 JA |
3637 | rl_completion_entry_function = rl_filename_completion_function; |
3638 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
495aee44 | 3639 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 JA |
3640 | rl_completer_word_break_characters = " \t\n\"\'"; |
3641 | ||
28ef6c31 | 3642 | r = rl_complete_internal (what_to_do); |
726f6388 JA |
3643 | |
3644 | rl_completion_entry_function = orig_func; | |
3645 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 | 3646 | rl_ignore_some_completions_function = orig_ignore_func; |
726f6388 | 3647 | rl_completer_word_break_characters = orig_rl_completer_word_break_characters; |
28ef6c31 | 3648 | |
16b2d7f4 CR |
3649 | restore_directory_hook (orig_dir_func); |
3650 | ||
28ef6c31 | 3651 | return r; |
726f6388 JA |
3652 | } |
3653 | ||
28ef6c31 | 3654 | static int |
726f6388 JA |
3655 | bash_complete_hostname (ignore, ignore2) |
3656 | int ignore, ignore2; | |
3657 | { | |
7117c2d2 | 3658 | return bash_complete_hostname_internal (rl_completion_mode (bash_complete_hostname)); |
726f6388 JA |
3659 | } |
3660 | ||
28ef6c31 | 3661 | static int |
726f6388 JA |
3662 | bash_possible_hostname_completions (ignore, ignore2) |
3663 | int ignore, ignore2; | |
3664 | { | |
28ef6c31 | 3665 | return bash_complete_hostname_internal ('?'); |
726f6388 JA |
3666 | } |
3667 | ||
28ef6c31 | 3668 | static int |
726f6388 JA |
3669 | bash_complete_variable (ignore, ignore2) |
3670 | int ignore, ignore2; | |
3671 | { | |
7117c2d2 | 3672 | return bash_complete_variable_internal (rl_completion_mode (bash_complete_variable)); |
726f6388 JA |
3673 | } |
3674 | ||
28ef6c31 | 3675 | static int |
726f6388 JA |
3676 | bash_possible_variable_completions (ignore, ignore2) |
3677 | int ignore, ignore2; | |
3678 | { | |
28ef6c31 | 3679 | return bash_complete_variable_internal ('?'); |
726f6388 JA |
3680 | } |
3681 | ||
28ef6c31 | 3682 | static int |
726f6388 JA |
3683 | bash_complete_command (ignore, ignore2) |
3684 | int ignore, ignore2; | |
3685 | { | |
7117c2d2 | 3686 | return bash_complete_command_internal (rl_completion_mode (bash_complete_command)); |
726f6388 JA |
3687 | } |
3688 | ||
28ef6c31 | 3689 | static int |
726f6388 JA |
3690 | bash_possible_command_completions (ignore, ignore2) |
3691 | int ignore, ignore2; | |
3692 | { | |
28ef6c31 | 3693 | return bash_complete_command_internal ('?'); |
726f6388 JA |
3694 | } |
3695 | ||
28ef6c31 | 3696 | static int |
726f6388 JA |
3697 | bash_complete_hostname_internal (what_to_do) |
3698 | int what_to_do; | |
3699 | { | |
28ef6c31 | 3700 | return bash_specific_completion (what_to_do, hostname_completion_function); |
726f6388 JA |
3701 | } |
3702 | ||
28ef6c31 | 3703 | static int |
726f6388 JA |
3704 | bash_complete_variable_internal (what_to_do) |
3705 | int what_to_do; | |
3706 | { | |
28ef6c31 | 3707 | return bash_specific_completion (what_to_do, variable_completion_function); |
726f6388 JA |
3708 | } |
3709 | ||
28ef6c31 | 3710 | static int |
726f6388 JA |
3711 | bash_complete_command_internal (what_to_do) |
3712 | int what_to_do; | |
3713 | { | |
28ef6c31 | 3714 | return bash_specific_completion (what_to_do, command_word_completion_function); |
726f6388 JA |
3715 | } |
3716 | ||
4d2e3154 CR |
3717 | static int |
3718 | completion_glob_pattern (string) | |
3719 | char *string; | |
3720 | { | |
3721 | register int c; | |
3722 | char *send; | |
3723 | int open; | |
3724 | ||
3725 | DECLARE_MBSTATE; | |
3726 | ||
3727 | open = 0; | |
3728 | send = string + strlen (string); | |
3729 | ||
3730 | while (c = *string++) | |
3731 | { | |
3732 | switch (c) | |
3733 | { | |
3734 | case '?': | |
3735 | case '*': | |
3736 | return (1); | |
3737 | ||
3738 | case '[': | |
3739 | open++; | |
3740 | continue; | |
3741 | ||
3742 | case ']': | |
3743 | if (open) | |
3744 | return (1); | |
3745 | continue; | |
3746 | ||
3747 | case '+': | |
3748 | case '@': | |
3749 | case '!': | |
3750 | if (*string == '(') /*)*/ | |
3751 | return (1); | |
3752 | continue; | |
3753 | ||
3754 | case '\\': | |
3755 | if (*string == 0) | |
3756 | return (0); | |
3757 | } | |
3758 | ||
3759 | /* Advance one fewer byte than an entire multibyte character to | |
3760 | account for the auto-increment in the loop above. */ | |
3761 | #ifdef HANDLE_MULTIBYTE | |
3762 | string--; | |
3763 | ADVANCE_CHAR_P (string, send - string); | |
3764 | string++; | |
3765 | #else | |
3766 | ADVANCE_CHAR_P (string, send - string); | |
3767 | #endif | |
3768 | } | |
3769 | return (0); | |
3770 | } | |
3771 | ||
7117c2d2 JA |
3772 | static char *globtext; |
3773 | static char *globorig; | |
3774 | ||
ccc6cda3 JA |
3775 | static char * |
3776 | glob_complete_word (text, state) | |
28ef6c31 | 3777 | const char *text; |
ccc6cda3 JA |
3778 | int state; |
3779 | { | |
3780 | static char **matches = (char **)NULL; | |
3781 | static int ind; | |
7117c2d2 | 3782 | int glen; |
eb873671 | 3783 | char *ret, *ttext; |
ccc6cda3 JA |
3784 | |
3785 | if (state == 0) | |
3786 | { | |
e8ce775d | 3787 | rl_filename_completion_desired = 1; |
7117c2d2 JA |
3788 | FREE (matches); |
3789 | if (globorig != globtext) | |
3790 | FREE (globorig); | |
3791 | FREE (globtext); | |
3792 | ||
eb873671 JA |
3793 | ttext = bash_tilde_expand (text, 0); |
3794 | ||
7117c2d2 JA |
3795 | if (rl_explicit_arg) |
3796 | { | |
eb873671 JA |
3797 | globorig = savestring (ttext); |
3798 | glen = strlen (ttext); | |
7117c2d2 | 3799 | globtext = (char *)xmalloc (glen + 2); |
eb873671 | 3800 | strcpy (globtext, ttext); |
7117c2d2 JA |
3801 | globtext[glen] = '*'; |
3802 | globtext[glen+1] = '\0'; | |
3803 | } | |
3804 | else | |
eb873671 JA |
3805 | globtext = globorig = savestring (ttext); |
3806 | ||
3807 | if (ttext != text) | |
3808 | free (ttext); | |
7117c2d2 JA |
3809 | |
3810 | matches = shell_glob_filename (globtext); | |
ccc6cda3 | 3811 | if (GLOB_FAILED (matches)) |
28ef6c31 | 3812 | matches = (char **)NULL; |
ccc6cda3 JA |
3813 | ind = 0; |
3814 | } | |
3815 | ||
3816 | ret = matches ? matches[ind] : (char *)NULL; | |
3817 | ind++; | |
3818 | return ret; | |
3819 | } | |
3820 | ||
28ef6c31 | 3821 | static int |
ccc6cda3 JA |
3822 | bash_glob_completion_internal (what_to_do) |
3823 | int what_to_do; | |
3824 | { | |
28ef6c31 | 3825 | return bash_specific_completion (what_to_do, glob_complete_word); |
ccc6cda3 JA |
3826 | } |
3827 | ||
7117c2d2 JA |
3828 | /* A special quoting function so we don't end up quoting globbing characters |
3829 | in the word if there are no matches or multiple matches. */ | |
3830 | static char * | |
3831 | bash_glob_quote_filename (s, rtype, qcp) | |
3832 | char *s; | |
3833 | int rtype; | |
3834 | char *qcp; | |
3835 | { | |
3836 | if (globorig && qcp && *qcp == '\0' && STREQ (s, globorig)) | |
3837 | return (savestring (s)); | |
3838 | else | |
3839 | return (bash_quote_filename (s, rtype, qcp)); | |
3840 | } | |
3841 | ||
3842 | static int | |
3843 | bash_glob_complete_word (count, key) | |
3844 | int count, key; | |
3845 | { | |
3846 | int r; | |
3847 | rl_quote_func_t *orig_quoting_function; | |
3848 | ||
b80f6443 JA |
3849 | if (rl_editing_mode == EMACS_EDITING_MODE) |
3850 | rl_explicit_arg = 1; /* force `*' append */ | |
7117c2d2 JA |
3851 | orig_quoting_function = rl_filename_quoting_function; |
3852 | rl_filename_quoting_function = bash_glob_quote_filename; | |
3853 | ||
3854 | r = bash_glob_completion_internal (rl_completion_mode (bash_glob_complete_word)); | |
3855 | ||
3856 | rl_filename_quoting_function = orig_quoting_function; | |
3857 | return r; | |
3858 | } | |
3859 | ||
28ef6c31 | 3860 | static int |
ccc6cda3 JA |
3861 | bash_glob_expand_word (count, key) |
3862 | int count, key; | |
3863 | { | |
28ef6c31 | 3864 | return bash_glob_completion_internal ('*'); |
ccc6cda3 JA |
3865 | } |
3866 | ||
28ef6c31 | 3867 | static int |
ccc6cda3 JA |
3868 | bash_glob_list_expansions (count, key) |
3869 | int count, key; | |
3870 | { | |
28ef6c31 | 3871 | return bash_glob_completion_internal ('?'); |
ccc6cda3 JA |
3872 | } |
3873 | ||
28ef6c31 | 3874 | static int |
726f6388 JA |
3875 | bash_specific_completion (what_to_do, generator) |
3876 | int what_to_do; | |
28ef6c31 | 3877 | rl_compentry_func_t *generator; |
726f6388 | 3878 | { |
28ef6c31 JA |
3879 | rl_compentry_func_t *orig_func; |
3880 | rl_completion_func_t *orig_attempt_func; | |
495aee44 | 3881 | rl_compignore_func_t *orig_ignore_func; |
28ef6c31 | 3882 | int r; |
726f6388 JA |
3883 | |
3884 | orig_func = rl_completion_entry_function; | |
3885 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3886 | orig_ignore_func = rl_ignore_some_completions_function; |
726f6388 | 3887 | rl_completion_entry_function = generator; |
28ef6c31 | 3888 | rl_attempted_completion_function = NULL; |
495aee44 | 3889 | rl_ignore_some_completions_function = orig_ignore_func; |
726f6388 | 3890 | |
28ef6c31 | 3891 | r = rl_complete_internal (what_to_do); |
726f6388 JA |
3892 | |
3893 | rl_completion_entry_function = orig_func; | |
3894 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 | 3895 | rl_ignore_some_completions_function = orig_ignore_func; |
28ef6c31 JA |
3896 | |
3897 | return r; | |
726f6388 JA |
3898 | } |
3899 | ||
3900 | #endif /* SPECIFIC_COMPLETION_FUNCTIONS */ | |
ccc6cda3 | 3901 | |
b80f6443 JA |
3902 | #if defined (VI_MODE) |
3903 | /* Completion, from vi mode's point of view. This is a modified version of | |
3904 | rl_vi_complete which uses the bash globbing code to implement what POSIX | |
3905 | specifies, which is to append a `*' and attempt filename generation (which | |
3906 | has the side effect of expanding any globbing characters in the word). */ | |
3907 | static int | |
3908 | bash_vi_complete (count, key) | |
3909 | int count, key; | |
3910 | { | |
3911 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
3912 | int p, r; | |
3913 | char *t; | |
3914 | ||
3915 | if ((rl_point < rl_end) && (!whitespace (rl_line_buffer[rl_point]))) | |
3916 | { | |
3917 | if (!whitespace (rl_line_buffer[rl_point + 1])) | |
3918 | rl_vi_end_word (1, 'E'); | |
3919 | rl_point++; | |
3920 | } | |
3921 | ||
3922 | /* Find boundaries of current word, according to vi definition of a | |
3923 | `bigword'. */ | |
3924 | t = 0; | |
3925 | if (rl_point > 0) | |
3926 | { | |
3927 | p = rl_point; | |
3928 | rl_vi_bWord (1, 'B'); | |
3929 | r = rl_point; | |
3930 | rl_point = p; | |
3931 | p = r; | |
3932 | ||
3933 | t = substring (rl_line_buffer, p, rl_point); | |
3934 | } | |
3935 | ||
4d2e3154 | 3936 | if (t && completion_glob_pattern (t) == 0) |
b80f6443 JA |
3937 | rl_explicit_arg = 1; /* XXX - force glob_complete_word to append `*' */ |
3938 | FREE (t); | |
3939 | ||
3940 | if (key == '*') /* Expansion and replacement. */ | |
3941 | r = bash_glob_expand_word (count, key); | |
3942 | else if (key == '=') /* List possible completions. */ | |
3943 | r = bash_glob_list_expansions (count, key); | |
3944 | else if (key == '\\') /* Standard completion */ | |
3945 | r = bash_glob_complete_word (count, key); | |
3946 | else | |
3947 | r = rl_complete (0, key); | |
3948 | ||
3949 | if (key == '*' || key == '\\') | |
3950 | rl_vi_start_inserting (key, 1, 1); | |
3951 | ||
3952 | return (r); | |
3953 | #else | |
3954 | return rl_vi_complete (count, key); | |
3955 | #endif /* !SPECIFIC_COMPLETION_FUNCTIONS */ | |
3956 | } | |
3957 | #endif /* VI_MODE */ | |
3958 | ||
ccc6cda3 | 3959 | /* Filename quoting for completion. */ |
bb70624e JA |
3960 | /* A function to strip unquoted quote characters (single quotes, double |
3961 | quotes, and backslashes). It allows single quotes to appear | |
3962 | within double quotes, and vice versa. It should be smarter. */ | |
ccc6cda3 JA |
3963 | static char * |
3964 | bash_dequote_filename (text, quote_char) | |
3965 | char *text; | |
28ef6c31 | 3966 | int quote_char; |
ccc6cda3 JA |
3967 | { |
3968 | char *ret, *p, *r; | |
3969 | int l, quoted; | |
3970 | ||
3971 | l = strlen (text); | |
f73dda09 | 3972 | ret = (char *)xmalloc (l + 1); |
ccc6cda3 JA |
3973 | for (quoted = quote_char, p = text, r = ret; p && *p; p++) |
3974 | { | |
3185942a | 3975 | /* Allow backslash-escaped characters to pass through unscathed. */ |
ccc6cda3 JA |
3976 | if (*p == '\\') |
3977 | { | |
3185942a JA |
3978 | /* Backslashes are preserved within single quotes. */ |
3979 | if (quoted == '\'') | |
3980 | *r++ = *p; | |
3981 | /* Backslashes are preserved within double quotes unless the | |
3982 | character is one that is defined to be escaped */ | |
d233b485 | 3983 | else if (quoted == '"' && ((sh_syntaxtab[(unsigned char)p[1]] & CBSDQUOTE) == 0)) |
3185942a JA |
3984 | *r++ = *p; |
3985 | ||
ccc6cda3 JA |
3986 | *r++ = *++p; |
3987 | if (*p == '\0') | |
0001803f | 3988 | return ret; /* XXX - was break; */ |
ccc6cda3 JA |
3989 | continue; |
3990 | } | |
3991 | /* Close quote. */ | |
3992 | if (quoted && *p == quoted) | |
28ef6c31 JA |
3993 | { |
3994 | quoted = 0; | |
3995 | continue; | |
3996 | } | |
ccc6cda3 JA |
3997 | /* Open quote. */ |
3998 | if (quoted == 0 && (*p == '\'' || *p == '"')) | |
28ef6c31 JA |
3999 | { |
4000 | quoted = *p; | |
4001 | continue; | |
4002 | } | |
ccc6cda3 JA |
4003 | *r++ = *p; |
4004 | } | |
4005 | *r = '\0'; | |
4006 | return ret; | |
4007 | } | |
4008 | ||
d166f048 JA |
4009 | /* Quote characters that the readline completion code would treat as |
4010 | word break characters with backslashes. Pass backslash-quoted | |
4011 | characters through without examination. */ | |
4012 | static char * | |
4013 | quote_word_break_chars (text) | |
4014 | char *text; | |
4015 | { | |
4016 | char *ret, *r, *s; | |
4017 | int l; | |
4018 | ||
4019 | l = strlen (text); | |
f73dda09 | 4020 | ret = (char *)xmalloc ((2 * l) + 1); |
d166f048 JA |
4021 | for (s = text, r = ret; *s; s++) |
4022 | { | |
4023 | /* Pass backslash-quoted characters through, including the backslash. */ | |
4024 | if (*s == '\\') | |
4025 | { | |
4026 | *r++ = '\\'; | |
4027 | *r++ = *++s; | |
4028 | if (*s == '\0') | |
4029 | break; | |
4030 | continue; | |
4031 | } | |
4032 | /* OK, we have an unquoted character. Check its presence in | |
4033 | rl_completer_word_break_characters. */ | |
0001803f | 4034 | if (mbschr (rl_completer_word_break_characters, *s)) |
28ef6c31 | 4035 | *r++ = '\\'; |
3185942a JA |
4036 | /* XXX -- check for standalone tildes here and backslash-quote them */ |
4037 | if (s == text && *s == '~' && file_exists (text)) | |
4038 | *r++ = '\\'; | |
d166f048 JA |
4039 | *r++ = *s; |
4040 | } | |
4041 | *r = '\0'; | |
4042 | return ret; | |
4043 | } | |
4044 | ||
ac50fbac CR |
4045 | /* Use characters in STRING to populate the table of characters that should |
4046 | be backslash-quoted. The table will be used for sh_backslash_quote from | |
4047 | this file. */ | |
4048 | static void | |
4049 | set_filename_bstab (string) | |
4050 | const char *string; | |
4051 | { | |
4052 | const char *s; | |
4053 | ||
4054 | memset (filename_bstab, 0, sizeof (filename_bstab)); | |
4055 | for (s = string; s && *s; s++) | |
4056 | filename_bstab[*s] = 1; | |
4057 | } | |
4058 | ||
d166f048 JA |
4059 | /* Quote a filename using double quotes, single quotes, or backslashes |
4060 | depending on the value of completion_quoting_style. If we're | |
4061 | completing using backslashes, we need to quote some additional | |
4062 | characters (those that readline treats as word breaks), so we call | |
7117c2d2 JA |
4063 | quote_word_break_chars on the result. This returns newly-allocated |
4064 | memory. */ | |
ccc6cda3 JA |
4065 | static char * |
4066 | bash_quote_filename (s, rtype, qcp) | |
4067 | char *s; | |
4068 | int rtype; | |
4069 | char *qcp; | |
4070 | { | |
4071 | char *rtext, *mtext, *ret; | |
4072 | int rlen, cs; | |
4073 | ||
4074 | rtext = (char *)NULL; | |
4075 | ||
4076 | /* If RTYPE == MULT_MATCH, it means that there is | |
4077 | more than one match. In this case, we do not add | |
4078 | the closing quote or attempt to perform tilde | |
4079 | expansion. If RTYPE == SINGLE_MATCH, we try | |
4080 | to perform tilde expansion, because single and double | |
4081 | quotes inhibit tilde expansion by the shell. */ | |
4082 | ||
ccc6cda3 JA |
4083 | cs = completion_quoting_style; |
4084 | /* Might need to modify the default completion style based on *qcp, | |
bb70624e JA |
4085 | since it's set to any user-provided opening quote. We also change |
4086 | to single-quoting if there is no user-provided opening quote and | |
4087 | the word being completed contains newlines, since those are not | |
4088 | quoted correctly using backslashes (a backslash-newline pair is | |
4089 | special to the shell parser). */ | |
0001803f | 4090 | if (*qcp == '\0' && cs == COMPLETE_BSQUOTE && mbschr (s, '\n')) |
bb70624e JA |
4091 | cs = COMPLETE_SQUOTE; |
4092 | else if (*qcp == '"') | |
ccc6cda3 JA |
4093 | cs = COMPLETE_DQUOTE; |
4094 | else if (*qcp == '\'') | |
4095 | cs = COMPLETE_SQUOTE; | |
4096 | #if defined (BANG_HISTORY) | |
4097 | else if (*qcp == '\0' && history_expansion && cs == COMPLETE_DQUOTE && | |
0001803f | 4098 | history_expansion_inhibited == 0 && mbschr (s, '!')) |
ccc6cda3 | 4099 | cs = COMPLETE_BSQUOTE; |
d166f048 JA |
4100 | |
4101 | if (*qcp == '"' && history_expansion && cs == COMPLETE_DQUOTE && | |
0001803f | 4102 | history_expansion_inhibited == 0 && mbschr (s, '!')) |
d166f048 JA |
4103 | { |
4104 | cs = COMPLETE_BSQUOTE; | |
4105 | *qcp = '\0'; | |
4106 | } | |
ccc6cda3 JA |
4107 | #endif |
4108 | ||
95732b49 JA |
4109 | /* Don't tilde-expand backslash-quoted filenames, since only single and |
4110 | double quotes inhibit tilde expansion. */ | |
4111 | mtext = s; | |
4112 | if (mtext[0] == '~' && rtype == SINGLE_MATCH && cs != COMPLETE_BSQUOTE) | |
4113 | mtext = bash_tilde_expand (s, 0); | |
4114 | ||
ccc6cda3 JA |
4115 | switch (cs) |
4116 | { | |
4117 | case COMPLETE_DQUOTE: | |
28ef6c31 | 4118 | rtext = sh_double_quote (mtext); |
ccc6cda3 JA |
4119 | break; |
4120 | case COMPLETE_SQUOTE: | |
28ef6c31 | 4121 | rtext = sh_single_quote (mtext); |
ccc6cda3 JA |
4122 | break; |
4123 | case COMPLETE_BSQUOTE: | |
ac50fbac | 4124 | rtext = sh_backslash_quote (mtext, complete_fullquote ? 0 : filename_bstab, 0); |
ccc6cda3 JA |
4125 | break; |
4126 | } | |
4127 | ||
4128 | if (mtext != s) | |
4129 | free (mtext); | |
4130 | ||
d166f048 JA |
4131 | /* We may need to quote additional characters: those that readline treats |
4132 | as word breaks that are not quoted by backslash_quote. */ | |
4133 | if (rtext && cs == COMPLETE_BSQUOTE) | |
4134 | { | |
4135 | mtext = quote_word_break_chars (rtext); | |
4136 | free (rtext); | |
4137 | rtext = mtext; | |
4138 | } | |
4139 | ||
ccc6cda3 JA |
4140 | /* Leave the opening quote intact. The readline completion code takes |
4141 | care of avoiding doubled opening quotes. */ | |
ac50fbac CR |
4142 | if (rtext) |
4143 | { | |
4144 | rlen = strlen (rtext); | |
4145 | ret = (char *)xmalloc (rlen + 1); | |
4146 | strcpy (ret, rtext); | |
4147 | } | |
4148 | else | |
4149 | { | |
4150 | ret = (char *)xmalloc (rlen = 1); | |
4151 | ret[0] = '\0'; | |
4152 | } | |
ccc6cda3 JA |
4153 | |
4154 | /* If there are multiple matches, cut off the closing quote. */ | |
4155 | if (rtype == MULT_MATCH && cs != COMPLETE_BSQUOTE) | |
4156 | ret[rlen - 1] = '\0'; | |
4157 | free (rtext); | |
4158 | return ret; | |
4159 | } | |
4160 | ||
bb70624e JA |
4161 | /* Support for binding readline key sequences to Unix commands. */ |
4162 | static Keymap cmd_xmap; | |
4163 | ||
ac50fbac CR |
4164 | #ifdef _MINIX |
4165 | static void | |
4166 | #else | |
0001803f | 4167 | static int |
ac50fbac | 4168 | #endif |
0001803f CR |
4169 | putx(c) |
4170 | int c; | |
4171 | { | |
495aee44 | 4172 | int x; |
495aee44 | 4173 | x = putc (c, rl_outstream); |
ac50fbac CR |
4174 | #ifndef _MINIX |
4175 | return x; | |
4176 | #endif | |
0001803f CR |
4177 | } |
4178 | ||
bb70624e JA |
4179 | static int |
4180 | bash_execute_unix_command (count, key) | |
4181 | int count; /* ignored */ | |
4182 | int key; | |
4183 | { | |
ac50fbac | 4184 | int type; |
0001803f | 4185 | register int i, r; |
3185942a | 4186 | intmax_t mi; |
b80f6443 | 4187 | sh_parser_state_t ps; |
d233b485 | 4188 | char *cmd, *value, *ce, old_ch; |
3185942a JA |
4189 | SHELL_VAR *v; |
4190 | char ibuf[INT_STRLEN_BOUND(int) + 1]; | |
bb70624e JA |
4191 | |
4192 | /* First, we need to find the right command to execute. This is tricky, | |
ac50fbac CR |
4193 | because we might have already indirected into another keymap, so we |
4194 | have to walk cmd_xmap using the entire key sequence. */ | |
d233b485 | 4195 | cmd = (char *)rl_function_of_keyseq_len (rl_executing_keyseq, rl_key_sequence_length, cmd_xmap, &type); |
ac50fbac CR |
4196 | |
4197 | if (cmd == 0 || type != ISMACR) | |
bb70624e | 4198 | { |
ac50fbac CR |
4199 | rl_crlf (); |
4200 | internal_error (_("bash_execute_unix_command: cannot find keymap for command")); | |
4201 | rl_forced_update_display (); | |
bb70624e JA |
4202 | return 1; |
4203 | } | |
4204 | ||
0001803f CR |
4205 | ce = rl_get_termcap ("ce"); |
4206 | if (ce) /* clear current line */ | |
4207 | { | |
a0c0a00f | 4208 | #if 0 |
0001803f CR |
4209 | fprintf (rl_outstream, "\r"); |
4210 | tputs (ce, 1, putx); | |
a0c0a00f CR |
4211 | #else |
4212 | rl_clear_visible_line (); | |
4213 | #endif | |
0001803f CR |
4214 | fflush (rl_outstream); |
4215 | } | |
4216 | else | |
4217 | rl_crlf (); /* move to a new line */ | |
bb70624e | 4218 | |
3185942a JA |
4219 | v = bind_variable ("READLINE_LINE", rl_line_buffer, 0); |
4220 | if (v) | |
4221 | VSETATTR (v, att_exported); | |
d233b485 CR |
4222 | i = rl_point; |
4223 | #if defined (HANDLE_MULTIBYTE) | |
4224 | if (MB_CUR_MAX > 1) | |
4225 | { | |
4226 | old_ch = rl_line_buffer[rl_point]; | |
4227 | rl_line_buffer[rl_point] = '\0'; | |
4228 | i = MB_STRLEN (rl_line_buffer); | |
4229 | rl_line_buffer[rl_point] = old_ch; | |
4230 | } | |
4231 | #endif | |
4232 | value = inttostr (i, ibuf, sizeof (ibuf)); | |
4233 | v = bind_int_variable ("READLINE_POINT", value, 0); | |
3185942a JA |
4234 | if (v) |
4235 | VSETATTR (v, att_exported); | |
4236 | array_needs_making = 1; | |
4237 | ||
b80f6443 | 4238 | save_parser_state (&ps); |
d233b485 | 4239 | r = parse_and_execute (savestring (cmd), "bash_execute_unix_command", SEVAL_NOHIST|SEVAL_NOFREE); |
3185942a | 4240 | restore_parser_state (&ps); |
7117c2d2 | 4241 | |
3185942a | 4242 | v = find_variable ("READLINE_LINE"); |
d233b485 CR |
4243 | maybe_make_readline_line (v ? value_cell (v) : 0); |
4244 | ||
3185942a JA |
4245 | v = find_variable ("READLINE_POINT"); |
4246 | if (v && legal_number (value_cell (v), &mi)) | |
4247 | { | |
4248 | i = mi; | |
d233b485 CR |
4249 | #if defined (HANDLE_MULTIBYTE) |
4250 | if (i > 0 && MB_CUR_MAX > 1) | |
4251 | i = _rl_find_next_mbchar (rl_line_buffer, 0, i, 0); | |
4252 | #endif | |
89a92869 | 4253 | if (i != rl_point) |
3185942a JA |
4254 | { |
4255 | rl_point = i; | |
4256 | if (rl_point > rl_end) | |
4257 | rl_point = rl_end; | |
4258 | else if (rl_point < 0) | |
4259 | rl_point = 0; | |
4260 | } | |
4261 | } | |
7117c2d2 | 4262 | |
a0c0a00f CR |
4263 | check_unbind_variable ("READLINE_LINE"); |
4264 | check_unbind_variable ("READLINE_POINT"); | |
3185942a | 4265 | array_needs_making = 1; |
bb70624e JA |
4266 | |
4267 | /* and restore the readline buffer and display after command execution. */ | |
a0c0a00f CR |
4268 | /* If we clear the last line of the prompt above, redraw only that last |
4269 | line. If the command returns 124, we redraw unconditionally as in | |
4270 | previous versions. */ | |
4271 | if (ce && r != 124) | |
4272 | rl_redraw_prompt_last_line (); | |
4273 | else | |
4274 | rl_forced_update_display (); | |
4275 | ||
bb70624e JA |
4276 | return 0; |
4277 | } | |
4278 | ||
ac50fbac CR |
4279 | int |
4280 | print_unix_command_map () | |
4281 | { | |
4282 | Keymap save; | |
4283 | ||
4284 | save = rl_get_keymap (); | |
4285 | rl_set_keymap (cmd_xmap); | |
4286 | rl_macro_dumper (1); | |
4287 | rl_set_keymap (save); | |
4288 | return 0; | |
4289 | } | |
4290 | ||
bb70624e JA |
4291 | static void |
4292 | init_unix_command_map () | |
4293 | { | |
4294 | cmd_xmap = rl_make_bare_keymap (); | |
4295 | } | |
4296 | ||
4297 | static int | |
4298 | isolate_sequence (string, ind, need_dquote, startp) | |
4299 | char *string; | |
4300 | int ind, need_dquote, *startp; | |
4301 | { | |
4302 | register int i; | |
4303 | int c, passc, delim; | |
4304 | ||
4305 | for (i = ind; string[i] && whitespace (string[i]); i++) | |
4306 | ; | |
4307 | /* NEED_DQUOTE means that the first non-white character *must* be `"'. */ | |
4308 | if (need_dquote && string[i] != '"') | |
4309 | { | |
b80f6443 | 4310 | builtin_error (_("%s: first non-whitespace character is not `\"'"), string); |
bb70624e JA |
4311 | return -1; |
4312 | } | |
4313 | ||
4314 | /* We can have delimited strings even if NEED_DQUOTE == 0, like the command | |
4315 | string to bind the key sequence to. */ | |
4316 | delim = (string[i] == '"' || string[i] == '\'') ? string[i] : 0; | |
4317 | ||
4318 | if (startp) | |
4319 | *startp = delim ? ++i : i; | |
4320 | ||
4321 | for (passc = 0; c = string[i]; i++) | |
4322 | { | |
4323 | if (passc) | |
4324 | { | |
4325 | passc = 0; | |
4326 | continue; | |
4327 | } | |
4328 | if (c == '\\') | |
4329 | { | |
4330 | passc++; | |
4331 | continue; | |
4332 | } | |
4333 | if (c == delim) | |
28ef6c31 | 4334 | break; |
bb70624e JA |
4335 | } |
4336 | ||
4337 | if (delim && string[i] != delim) | |
4338 | { | |
b80f6443 | 4339 | builtin_error (_("no closing `%c' in %s"), delim, string); |
bb70624e JA |
4340 | return -1; |
4341 | } | |
4342 | ||
4343 | return i; | |
4344 | } | |
4345 | ||
4346 | int | |
4347 | bind_keyseq_to_unix_command (line) | |
4348 | char *line; | |
4349 | { | |
4350 | Keymap kmap; | |
4351 | char *kseq, *value; | |
f73dda09 | 4352 | int i, kstart; |
bb70624e JA |
4353 | |
4354 | if (cmd_xmap == 0) | |
4355 | init_unix_command_map (); | |
4356 | ||
4357 | kmap = rl_get_keymap (); | |
4358 | ||
4359 | /* We duplicate some of the work done by rl_parse_and_bind here, but | |
4360 | this code only has to handle `"keyseq": ["]command["]' and can | |
4361 | generate an error for anything else. */ | |
4362 | i = isolate_sequence (line, 0, 1, &kstart); | |
4363 | if (i < 0) | |
4364 | return -1; | |
4365 | ||
4366 | /* Create the key sequence string to pass to rl_generic_bind */ | |
4367 | kseq = substring (line, kstart, i); | |
4368 | ||
4369 | for ( ; line[i] && line[i] != ':'; i++) | |
4370 | ; | |
4371 | if (line[i] != ':') | |
4372 | { | |
b80f6443 | 4373 | builtin_error (_("%s: missing colon separator"), line); |
ac50fbac | 4374 | FREE (kseq); |
bb70624e JA |
4375 | return -1; |
4376 | } | |
4377 | ||
4378 | i = isolate_sequence (line, i + 1, 0, &kstart); | |
4379 | if (i < 0) | |
ac50fbac CR |
4380 | { |
4381 | FREE (kseq); | |
4382 | return -1; | |
4383 | } | |
bb70624e JA |
4384 | |
4385 | /* Create the value string containing the command to execute. */ | |
4386 | value = substring (line, kstart, i); | |
4387 | ||
4388 | /* Save the command to execute and the key sequence in the CMD_XMAP */ | |
4389 | rl_generic_bind (ISMACR, kseq, value, cmd_xmap); | |
4390 | ||
4391 | /* and bind the key sequence in the current keymap to a function that | |
4392 | understands how to execute from CMD_XMAP */ | |
b80f6443 | 4393 | rl_bind_keyseq_in_map (kseq, bash_execute_unix_command, kmap); |
ac50fbac CR |
4394 | |
4395 | free (kseq); | |
bb70624e JA |
4396 | return 0; |
4397 | } | |
4398 | ||
4399 | /* Used by the programmable completion code. Complete TEXT as a filename, | |
4400 | but return only directories as matches. Dequotes the filename before | |
4401 | attempting to find matches. */ | |
4402 | char ** | |
4403 | bash_directory_completion_matches (text) | |
28ef6c31 | 4404 | const char *text; |
bb70624e JA |
4405 | { |
4406 | char **m1; | |
4407 | char *dfn; | |
4408 | int qc; | |
4409 | ||
b80f6443 | 4410 | qc = rl_dispatching ? rl_completion_quote_character : 0; |
c6dcdf4d CR |
4411 | /* If rl_completion_found_quote != 0, rl_completion_matches will call the |
4412 | filename dequoting function, causing the directory name to be dequoted | |
4413 | twice. */ | |
4414 | if (rl_dispatching && rl_completion_found_quote == 0) | |
4415 | dfn = bash_dequote_filename ((char *)text, qc); | |
4416 | else | |
4417 | dfn = (char *)text; | |
28ef6c31 | 4418 | m1 = rl_completion_matches (dfn, rl_filename_completion_function); |
c6dcdf4d CR |
4419 | if (dfn != text) |
4420 | free (dfn); | |
bb70624e JA |
4421 | |
4422 | if (m1 == 0 || m1[0] == 0) | |
4423 | return m1; | |
4424 | /* We don't bother recomputing the lcd of the matches, because it will just | |
4425 | get thrown away by the programmable completion code and recomputed | |
4426 | later. */ | |
4427 | (void)bash_ignore_filenames (m1); | |
4428 | return m1; | |
4429 | } | |
b80f6443 JA |
4430 | |
4431 | char * | |
4432 | bash_dequote_text (text) | |
4433 | const char *text; | |
4434 | { | |
4435 | char *dtxt; | |
4436 | int qc; | |
4437 | ||
4438 | qc = (text[0] == '"' || text[0] == '\'') ? text[0] : 0; | |
4439 | dtxt = bash_dequote_filename ((char *)text, qc); | |
4440 | return (dtxt); | |
4441 | } | |
ac50fbac CR |
4442 | |
4443 | /* This event hook is designed to be called after readline receives a signal | |
4444 | that interrupts read(2). It gives reasonable responsiveness to interrupts | |
4445 | and fatal signals without executing too much code in a signal handler | |
4446 | context. */ | |
4447 | static int | |
4448 | bash_event_hook () | |
4449 | { | |
4450 | /* If we're going to longjmp to top_level, make sure we clean up readline. | |
4451 | check_signals will call QUIT, which will eventually longjmp to top_level, | |
84c617ec CR |
4452 | calling run_interrupt_trap along the way. The check for sigalrm_seen is |
4453 | to clean up the read builtin's state. */ | |
4454 | if (terminating_signal || interrupt_state || sigalrm_seen) | |
ac50fbac CR |
4455 | rl_cleanup_after_signal (); |
4456 | bashline_reset_event_hook (); | |
4457 | check_signals_and_traps (); /* XXX */ | |
4458 | return 0; | |
4459 | } | |
4460 | ||
ccc6cda3 | 4461 | #endif /* READLINE */ |