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Commit | Line | Data |
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726f6388 JA |
1 | /* bashline.c -- Bash's interface to the readline library. */ |
2 | ||
495aee44 | 3 | /* Copyright (C) 1987-2011 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 | ||
726f6388 | 40 | #include <stdio.h> |
f73dda09 | 41 | #include "chartypes.h" |
726f6388 | 42 | #include "bashansi.h" |
b80f6443 JA |
43 | #include "bashintl.h" |
44 | ||
726f6388 | 45 | #include "shell.h" |
7117c2d2 | 46 | #include "input.h" |
726f6388 | 47 | #include "builtins.h" |
726f6388 | 48 | #include "bashhist.h" |
ccc6cda3 | 49 | #include "bashline.h" |
726f6388 | 50 | #include "execute_cmd.h" |
cce855bc | 51 | #include "findcmd.h" |
ccc6cda3 | 52 | #include "pathexp.h" |
3185942a JA |
53 | #include "shmbutil.h" |
54 | ||
ccc6cda3 | 55 | #include "builtins/common.h" |
3185942a | 56 | |
ccc6cda3 JA |
57 | #include <readline/rlconf.h> |
58 | #include <readline/readline.h> | |
59 | #include <readline/history.h> | |
60 | ||
61 | #include <glob/glob.h> | |
726f6388 JA |
62 | |
63 | #if defined (ALIAS) | |
64 | # include "alias.h" | |
65 | #endif | |
66 | ||
bb70624e JA |
67 | #if defined (PROGRAMMABLE_COMPLETION) |
68 | # include "pcomplete.h" | |
69 | #endif | |
70 | ||
7117c2d2 JA |
71 | /* These should agree with the defines for emacs_mode and vi_mode in |
72 | rldefs.h, even though that's not a public readline header file. */ | |
73 | #ifndef EMACS_EDITING_MODE | |
74 | # define NO_EDITING_MODE -1 | |
75 | # define EMACS_EDITING_MODE 1 | |
76 | # define VI_EDITING_MODE 0 | |
77 | #endif | |
78 | ||
3185942a JA |
79 | #define RL_BOOLEAN_VARIABLE_VALUE(s) ((s)[0] == 'o' && (s)[1] == 'n' && (s)[2] == '\0') |
80 | ||
726f6388 | 81 | #if defined (BRACE_COMPLETION) |
28ef6c31 | 82 | extern int bash_brace_completion __P((int, int)); |
726f6388 JA |
83 | #endif /* BRACE_COMPLETION */ |
84 | ||
0001803f CR |
85 | /* To avoid including curses.h/term.h/termcap.h and that whole mess. */ |
86 | extern int tputs __P((const char *string, int nlines, int (*outx)(int))); | |
87 | ||
28ef6c31 JA |
88 | /* Forward declarations */ |
89 | ||
726f6388 | 90 | /* Functions bound to keys in Readline for Bash users. */ |
28ef6c31 JA |
91 | static int shell_expand_line __P((int, int)); |
92 | static int display_shell_version __P((int, int)); | |
93 | static int operate_and_get_next __P((int, int)); | |
94 | ||
95 | static int bash_ignore_filenames __P((char **)); | |
96 | static int bash_ignore_everything __P((char **)); | |
97 | ||
cce855bc | 98 | #if defined (BANG_HISTORY) |
f73dda09 | 99 | static char *history_expand_line_internal __P((char *)); |
28ef6c31 JA |
100 | static int history_expand_line __P((int, int)); |
101 | static int tcsh_magic_space __P((int, int)); | |
cce855bc | 102 | #endif /* BANG_HISTORY */ |
d166f048 | 103 | #ifdef ALIAS |
28ef6c31 | 104 | static int alias_expand_line __P((int, int)); |
cce855bc JA |
105 | #endif |
106 | #if defined (BANG_HISTORY) && defined (ALIAS) | |
28ef6c31 | 107 | static int history_and_alias_expand_line __P((int, int)); |
d166f048 | 108 | #endif |
726f6388 | 109 | |
3185942a JA |
110 | static int bash_forward_shellword __P((int, int)); |
111 | static int bash_backward_shellword __P((int, int)); | |
112 | static int bash_kill_shellword __P((int, int)); | |
113 | static int bash_backward_kill_shellword __P((int, int)); | |
114 | ||
726f6388 | 115 | /* Helper functions for Readline. */ |
3185942a JA |
116 | static char *restore_tilde __P((char *, char *)); |
117 | ||
0001803f | 118 | static char *bash_filename_rewrite_hook __P((char *, int)); |
95732b49 | 119 | static void bash_directory_expansion __P((char **)); |
f73dda09 JA |
120 | static int bash_directory_completion_hook __P((char **)); |
121 | static int filename_completion_ignore __P((char **)); | |
28ef6c31 | 122 | static int bash_push_line __P((void)); |
726f6388 | 123 | |
f73dda09 JA |
124 | static void cleanup_expansion_error __P((void)); |
125 | static void maybe_make_readline_line __P((char *)); | |
126 | static void set_up_new_line __P((char *)); | |
127 | ||
128 | static int check_redir __P((int)); | |
28ef6c31 JA |
129 | static char **attempt_shell_completion __P((const char *, int, int)); |
130 | static char *variable_completion_function __P((const char *, int)); | |
131 | static char *hostname_completion_function __P((const char *, int)); | |
132 | static char *command_subst_completion_function __P((const char *, int)); | |
ccc6cda3 | 133 | |
f73dda09 JA |
134 | static void build_history_completion_array __P((void)); |
135 | static char *history_completion_generator __P((const char *, int)); | |
28ef6c31 | 136 | static int dynamic_complete_history __P((int, int)); |
3185942a | 137 | static int bash_dabbrev_expand __P((int, int)); |
726f6388 | 138 | |
f73dda09 | 139 | static void initialize_hostname_list __P((void)); |
28ef6c31 | 140 | static void add_host_name __P((char *)); |
f73dda09 JA |
141 | static void snarf_hosts_from_file __P((char *)); |
142 | static char **hostnames_matching __P((char *)); | |
143 | ||
144 | static void _ignore_completion_names __P((char **, sh_ignore_func_t *)); | |
145 | static int name_is_acceptable __P((const char *)); | |
146 | static int test_for_directory __P((const char *)); | |
147 | static int return_zero __P((const char *)); | |
28ef6c31 JA |
148 | |
149 | static char *bash_dequote_filename __P((char *, int)); | |
f73dda09 | 150 | static char *quote_word_break_chars __P((char *)); |
28ef6c31 | 151 | static char *bash_quote_filename __P((char *, int, char *)); |
ccc6cda3 | 152 | |
0001803f | 153 | static int putx __P((int)); |
f73dda09 JA |
154 | static int bash_execute_unix_command __P((int, int)); |
155 | static void init_unix_command_map __P((void)); | |
156 | static int isolate_sequence __P((char *, int, int, int *)); | |
157 | ||
158 | static int set_saved_history __P((void)); | |
159 | ||
ccc6cda3 | 160 | #if defined (ALIAS) |
28ef6c31 | 161 | static int posix_edit_macros __P((int, int)); |
ccc6cda3 | 162 | #endif |
726f6388 | 163 | |
bb70624e | 164 | #if defined (PROGRAMMABLE_COMPLETION) |
f73dda09 JA |
165 | static int find_cmd_start __P((int)); |
166 | static int find_cmd_end __P((int)); | |
167 | static char *find_cmd_name __P((int)); | |
168 | static char *prog_complete_return __P((const char *, int)); | |
169 | ||
bb70624e | 170 | static char **prog_complete_matches; |
bb70624e JA |
171 | #endif |
172 | ||
726f6388 | 173 | /* Variables used here but defined in other files. */ |
b80f6443 JA |
174 | #if defined (BANG_HISTORY) |
175 | extern int hist_verify; | |
176 | #endif | |
177 | ||
495aee44 CR |
178 | extern int current_command_line_count, saved_command_line_count; |
179 | extern int last_command_exit_value; | |
3185942a | 180 | extern int array_needs_making; |
726f6388 | 181 | extern int posixly_correct, no_symbolic_links; |
726f6388 JA |
182 | extern char *current_prompt_string, *ps1_prompt; |
183 | extern STRING_INT_ALIST word_token_alist[]; | |
b80f6443 | 184 | extern sh_builtin_func_t *last_shell_builtin, *this_shell_builtin; |
726f6388 JA |
185 | |
186 | /* SPECIFIC_COMPLETION_FUNCTIONS specifies that we have individual | |
187 | completion functions which indicate what type of completion should be | |
188 | done (at or before point) that can be bound to key sequences with | |
189 | the readline library. */ | |
190 | #define SPECIFIC_COMPLETION_FUNCTIONS | |
191 | ||
192 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
28ef6c31 JA |
193 | static int bash_specific_completion __P((int, rl_compentry_func_t *)); |
194 | ||
195 | static int bash_complete_filename_internal __P((int)); | |
196 | static int bash_complete_username_internal __P((int)); | |
197 | static int bash_complete_hostname_internal __P((int)); | |
198 | static int bash_complete_variable_internal __P((int)); | |
199 | static int bash_complete_command_internal __P((int)); | |
200 | ||
201 | static int bash_complete_filename __P((int, int)); | |
202 | static int bash_possible_filename_completions __P((int, int)); | |
203 | static int bash_complete_username __P((int, int)); | |
204 | static int bash_possible_username_completions __P((int, int)); | |
205 | static int bash_complete_hostname __P((int, int)); | |
206 | static int bash_possible_hostname_completions __P((int, int)); | |
207 | static int bash_complete_variable __P((int, int)); | |
208 | static int bash_possible_variable_completions __P((int, int)); | |
209 | static int bash_complete_command __P((int, int)); | |
210 | static int bash_possible_command_completions __P((int, int)); | |
f73dda09 JA |
211 | |
212 | static char *glob_complete_word __P((const char *, int)); | |
213 | static int bash_glob_completion_internal __P((int)); | |
7117c2d2 | 214 | static int bash_glob_complete_word __P((int, int)); |
f73dda09 JA |
215 | static int bash_glob_expand_word __P((int, int)); |
216 | static int bash_glob_list_expansions __P((int, int)); | |
b80f6443 | 217 | |
726f6388 JA |
218 | #endif /* SPECIFIC_COMPLETION_FUNCTIONS */ |
219 | ||
7117c2d2 | 220 | static int edit_and_execute_command __P((int, int, int, char *)); |
726f6388 | 221 | #if defined (VI_MODE) |
28ef6c31 | 222 | static int vi_edit_and_execute_command __P((int, int)); |
b80f6443 | 223 | static int bash_vi_complete __P((int, int)); |
726f6388 | 224 | #endif |
7117c2d2 | 225 | static int emacs_edit_and_execute_command __P((int, int)); |
726f6388 | 226 | |
ccc6cda3 JA |
227 | /* Non-zero once initalize_readline () has been called. */ |
228 | int bash_readline_initialized = 0; | |
229 | ||
230 | /* If non-zero, we do hostname completion, breaking words at `@' and | |
231 | trying to complete the stuff after the `@' from our own internal | |
232 | host list. */ | |
233 | int perform_hostname_completion = 1; | |
234 | ||
bb70624e JA |
235 | /* If non-zero, we don't do command completion on an empty line. */ |
236 | int no_empty_command_completion; | |
237 | ||
b80f6443 JA |
238 | /* Set FORCE_FIGNORE if you want to honor FIGNORE even if it ignores the |
239 | only possible matches. Set to 0 if you want to match filenames if they | |
240 | are the only possible matches, even if FIGNORE says to. */ | |
241 | int force_fignore = 1; | |
242 | ||
3185942a JA |
243 | /* Perform spelling correction on directory names during word completion */ |
244 | int dircomplete_spelling = 0; | |
245 | ||
ccc6cda3 JA |
246 | static char *bash_completer_word_break_characters = " \t\n\"'@><=;|&(:"; |
247 | static char *bash_nohostname_word_break_characters = " \t\n\"'><=;|&(:"; | |
b80f6443 | 248 | /* )) */ |
ccc6cda3 | 249 | |
28ef6c31 | 250 | static rl_hook_func_t *old_rl_startup_hook = (rl_hook_func_t *)NULL; |
726f6388 | 251 | |
95732b49 JA |
252 | static int dot_in_path = 0; |
253 | ||
0001803f CR |
254 | /* Set to non-zero when dabbrev-expand is running */ |
255 | static int dabbrev_expand_active = 0; | |
256 | ||
ccc6cda3 JA |
257 | /* What kind of quoting is performed by bash_quote_filename: |
258 | COMPLETE_DQUOTE = double-quoting the filename | |
259 | COMPLETE_SQUOTE = single_quoting the filename | |
260 | COMPLETE_BSQUOTE = backslash-quoting special chars in the filename | |
261 | */ | |
262 | #define COMPLETE_DQUOTE 1 | |
263 | #define COMPLETE_SQUOTE 2 | |
264 | #define COMPLETE_BSQUOTE 3 | |
265 | static int completion_quoting_style = COMPLETE_BSQUOTE; | |
266 | ||
0628567a JA |
267 | /* Flag values for the final argument to bash_default_completion */ |
268 | #define DEFCOMP_CMDPOS 1 | |
269 | ||
726f6388 JA |
270 | /* Change the readline VI-mode keymaps into or out of Posix.2 compliance. |
271 | Called when the shell is put into or out of `posix' mode. */ | |
272 | void | |
273 | posix_readline_initialize (on_or_off) | |
274 | int on_or_off; | |
275 | { | |
ccc6cda3 JA |
276 | if (on_or_off) |
277 | rl_variable_bind ("comment-begin", "#"); | |
726f6388 | 278 | #if defined (VI_MODE) |
7117c2d2 | 279 | rl_bind_key_in_map (CTRL ('I'), on_or_off ? rl_insert : rl_complete, vi_insertion_keymap); |
ccc6cda3 JA |
280 | #endif |
281 | } | |
282 | ||
3185942a JA |
283 | void |
284 | reset_completer_word_break_chars () | |
285 | { | |
286 | rl_completer_word_break_characters = perform_hostname_completion ? savestring (bash_completer_word_break_characters) : savestring (bash_nohostname_word_break_characters); | |
287 | } | |
288 | ||
b80f6443 JA |
289 | /* When this function returns, rl_completer_word_break_characters points to |
290 | dynamically allocated memory. */ | |
f73dda09 | 291 | int |
ccc6cda3 JA |
292 | enable_hostname_completion (on_or_off) |
293 | int on_or_off; | |
294 | { | |
f73dda09 | 295 | int old_value; |
b80f6443 | 296 | char *at, *nv, *nval; |
f73dda09 JA |
297 | |
298 | old_value = perform_hostname_completion; | |
299 | ||
726f6388 JA |
300 | if (on_or_off) |
301 | { | |
ccc6cda3 JA |
302 | perform_hostname_completion = 1; |
303 | rl_special_prefixes = "$@"; | |
726f6388 JA |
304 | } |
305 | else | |
ccc6cda3 JA |
306 | { |
307 | perform_hostname_completion = 0; | |
308 | rl_special_prefixes = "$"; | |
b80f6443 JA |
309 | } |
310 | ||
311 | /* Now we need to figure out how to appropriately modify and assign | |
312 | rl_completer_word_break_characters depending on whether we want | |
313 | hostname completion on or off. */ | |
314 | ||
315 | /* If this is the first time this has been called | |
316 | (bash_readline_initialized == 0), use the sames values as before, but | |
317 | allocate new memory for rl_completer_word_break_characters. */ | |
318 | ||
319 | if (bash_readline_initialized == 0 && | |
320 | (rl_completer_word_break_characters == 0 || | |
321 | rl_completer_word_break_characters == rl_basic_word_break_characters)) | |
322 | { | |
323 | if (on_or_off) | |
324 | rl_completer_word_break_characters = savestring (bash_completer_word_break_characters); | |
325 | else | |
326 | rl_completer_word_break_characters = savestring (bash_nohostname_word_break_characters); | |
327 | } | |
328 | else | |
329 | { | |
330 | /* See if we have anything to do. */ | |
331 | at = strchr (rl_completer_word_break_characters, '@'); | |
332 | if ((at == 0 && on_or_off == 0) || (at != 0 && on_or_off != 0)) | |
eb873671 | 333 | return old_value; |
b80f6443 JA |
334 | |
335 | /* We have something to do. Do it. */ | |
336 | nval = (char *)xmalloc (strlen (rl_completer_word_break_characters) + 1 + on_or_off); | |
337 | ||
338 | if (on_or_off == 0) | |
339 | { | |
340 | /* Turn it off -- just remove `@' from word break chars. We want | |
341 | to remove all occurrences of `@' from the char list, so we loop | |
342 | rather than just copy the rest of the list over AT. */ | |
343 | for (nv = nval, at = rl_completer_word_break_characters; *at; ) | |
344 | if (*at != '@') | |
345 | *nv++ = *at++; | |
346 | else | |
347 | at++; | |
348 | *nv = '\0'; | |
349 | } | |
350 | else | |
351 | { | |
352 | nval[0] = '@'; | |
353 | strcpy (nval + 1, rl_completer_word_break_characters); | |
354 | } | |
355 | ||
356 | free (rl_completer_word_break_characters); | |
357 | rl_completer_word_break_characters = nval; | |
ccc6cda3 | 358 | } |
f73dda09 JA |
359 | |
360 | return (old_value); | |
ccc6cda3 | 361 | } |
726f6388 JA |
362 | |
363 | /* Called once from parse.y if we are going to use readline. */ | |
364 | void | |
365 | initialize_readline () | |
366 | { | |
b80f6443 JA |
367 | rl_command_func_t *func; |
368 | char kseq[2]; | |
369 | ||
726f6388 JA |
370 | if (bash_readline_initialized) |
371 | return; | |
372 | ||
373 | rl_terminal_name = get_string_value ("TERM"); | |
374 | rl_instream = stdin; | |
375 | rl_outstream = stderr; | |
726f6388 JA |
376 | |
377 | /* Allow conditional parsing of the ~/.inputrc file. */ | |
378 | rl_readline_name = "Bash"; | |
379 | ||
28ef6c31 JA |
380 | /* Add bindable names before calling rl_initialize so they may be |
381 | referenced in the various inputrc files. */ | |
382 | rl_add_defun ("shell-expand-line", shell_expand_line, -1); | |
cce855bc | 383 | #ifdef BANG_HISTORY |
28ef6c31 JA |
384 | rl_add_defun ("history-expand-line", history_expand_line, -1); |
385 | rl_add_defun ("magic-space", tcsh_magic_space, -1); | |
cce855bc JA |
386 | #endif |
387 | ||
3185942a JA |
388 | rl_add_defun ("shell-forward-word", bash_forward_shellword, -1); |
389 | rl_add_defun ("shell-backward-word", bash_backward_shellword, -1); | |
390 | rl_add_defun ("shell-kill-word", bash_kill_shellword, -1); | |
391 | rl_add_defun ("shell-backward-kill-word", bash_backward_kill_shellword, -1); | |
392 | ||
d166f048 | 393 | #ifdef ALIAS |
28ef6c31 | 394 | rl_add_defun ("alias-expand-line", alias_expand_line, -1); |
bc4cd23c | 395 | # ifdef BANG_HISTORY |
28ef6c31 | 396 | rl_add_defun ("history-and-alias-expand-line", history_and_alias_expand_line, -1); |
bc4cd23c | 397 | # endif |
d166f048 JA |
398 | #endif |
399 | ||
726f6388 JA |
400 | /* Backwards compatibility. */ |
401 | rl_add_defun ("insert-last-argument", rl_yank_last_arg, -1); | |
402 | ||
28ef6c31 JA |
403 | rl_add_defun ("operate-and-get-next", operate_and_get_next, -1); |
404 | rl_add_defun ("display-shell-version", display_shell_version, -1); | |
7117c2d2 | 405 | rl_add_defun ("edit-and-execute-command", emacs_edit_and_execute_command, -1); |
28ef6c31 JA |
406 | |
407 | #if defined (BRACE_COMPLETION) | |
408 | rl_add_defun ("complete-into-braces", bash_brace_completion, -1); | |
409 | #endif | |
410 | ||
411 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
412 | rl_add_defun ("complete-filename", bash_complete_filename, -1); | |
413 | rl_add_defun ("possible-filename-completions", bash_possible_filename_completions, -1); | |
414 | rl_add_defun ("complete-username", bash_complete_username, -1); | |
415 | rl_add_defun ("possible-username-completions", bash_possible_username_completions, -1); | |
416 | rl_add_defun ("complete-hostname", bash_complete_hostname, -1); | |
417 | rl_add_defun ("possible-hostname-completions", bash_possible_hostname_completions, -1); | |
418 | rl_add_defun ("complete-variable", bash_complete_variable, -1); | |
419 | rl_add_defun ("possible-variable-completions", bash_possible_variable_completions, -1); | |
420 | rl_add_defun ("complete-command", bash_complete_command, -1); | |
421 | rl_add_defun ("possible-command-completions", bash_possible_command_completions, -1); | |
7117c2d2 | 422 | rl_add_defun ("glob-complete-word", bash_glob_complete_word, -1); |
28ef6c31 JA |
423 | rl_add_defun ("glob-expand-word", bash_glob_expand_word, -1); |
424 | rl_add_defun ("glob-list-expansions", bash_glob_list_expansions, -1); | |
425 | #endif | |
426 | ||
427 | rl_add_defun ("dynamic-complete-history", dynamic_complete_history, -1); | |
3185942a | 428 | rl_add_defun ("dabbrev-expand", bash_dabbrev_expand, -1); |
726f6388 | 429 | |
28ef6c31 JA |
430 | /* Bind defaults before binding our custom shell keybindings. */ |
431 | if (RL_ISSTATE(RL_STATE_INITIALIZED) == 0) | |
432 | rl_initialize (); | |
433 | ||
434 | /* Bind up our special shell functions. */ | |
b80f6443 | 435 | rl_bind_key_if_unbound_in_map (CTRL('E'), shell_expand_line, emacs_meta_keymap); |
28ef6c31 | 436 | |
28ef6c31 | 437 | #ifdef BANG_HISTORY |
b80f6443 | 438 | rl_bind_key_if_unbound_in_map ('^', history_expand_line, emacs_meta_keymap); |
28ef6c31 JA |
439 | #endif |
440 | ||
b80f6443 JA |
441 | rl_bind_key_if_unbound_in_map (CTRL ('O'), operate_and_get_next, emacs_standard_keymap); |
442 | rl_bind_key_if_unbound_in_map (CTRL ('V'), display_shell_version, emacs_ctlx_keymap); | |
726f6388 JA |
443 | |
444 | /* In Bash, the user can switch editing modes with "set -o [vi emacs]", | |
445 | so it is not necessary to allow C-M-j for context switching. Turn | |
446 | off this occasionally confusing behaviour. */ | |
b80f6443 JA |
447 | kseq[0] = CTRL('J'); |
448 | kseq[1] = '\0'; | |
449 | func = rl_function_of_keyseq (kseq, emacs_meta_keymap, (int *)NULL); | |
450 | if (func == rl_vi_editing_mode) | |
451 | rl_unbind_key_in_map (CTRL('J'), emacs_meta_keymap); | |
452 | kseq[0] = CTRL('M'); | |
453 | func = rl_function_of_keyseq (kseq, emacs_meta_keymap, (int *)NULL); | |
454 | if (func == rl_vi_editing_mode) | |
455 | rl_unbind_key_in_map (CTRL('M'), emacs_meta_keymap); | |
726f6388 JA |
456 | #if defined (VI_MODE) |
457 | rl_unbind_key_in_map (CTRL('E'), vi_movement_keymap); | |
458 | #endif | |
ccc6cda3 | 459 | |
726f6388 | 460 | #if defined (BRACE_COMPLETION) |
b80f6443 | 461 | rl_bind_key_if_unbound_in_map ('{', bash_brace_completion, emacs_meta_keymap); /*}*/ |
726f6388 JA |
462 | #endif /* BRACE_COMPLETION */ |
463 | ||
464 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
b80f6443 JA |
465 | rl_bind_key_if_unbound_in_map ('/', bash_complete_filename, emacs_meta_keymap); |
466 | rl_bind_key_if_unbound_in_map ('/', bash_possible_filename_completions, emacs_ctlx_keymap); | |
28ef6c31 | 467 | |
b80f6443 JA |
468 | /* Have to jump through hoops here because there is a default binding for |
469 | M-~ (rl_tilde_expand) */ | |
470 | kseq[0] = '~'; | |
471 | kseq[1] = '\0'; | |
472 | func = rl_function_of_keyseq (kseq, emacs_meta_keymap, (int *)NULL); | |
473 | if (func == 0 || func == rl_tilde_expand) | |
474 | rl_bind_keyseq_in_map (kseq, bash_complete_username, emacs_meta_keymap); | |
28ef6c31 | 475 | |
b80f6443 | 476 | rl_bind_key_if_unbound_in_map ('~', bash_possible_username_completions, emacs_ctlx_keymap); |
28ef6c31 | 477 | |
b80f6443 JA |
478 | rl_bind_key_if_unbound_in_map ('@', bash_complete_hostname, emacs_meta_keymap); |
479 | rl_bind_key_if_unbound_in_map ('@', bash_possible_hostname_completions, emacs_ctlx_keymap); | |
28ef6c31 | 480 | |
b80f6443 JA |
481 | rl_bind_key_if_unbound_in_map ('$', bash_complete_variable, emacs_meta_keymap); |
482 | rl_bind_key_if_unbound_in_map ('$', bash_possible_variable_completions, emacs_ctlx_keymap); | |
28ef6c31 | 483 | |
b80f6443 JA |
484 | rl_bind_key_if_unbound_in_map ('!', bash_complete_command, emacs_meta_keymap); |
485 | rl_bind_key_if_unbound_in_map ('!', bash_possible_command_completions, emacs_ctlx_keymap); | |
486 | ||
487 | rl_bind_key_if_unbound_in_map ('g', bash_glob_complete_word, emacs_meta_keymap); | |
488 | rl_bind_key_if_unbound_in_map ('*', bash_glob_expand_word, emacs_ctlx_keymap); | |
489 | rl_bind_key_if_unbound_in_map ('g', bash_glob_list_expansions, emacs_ctlx_keymap); | |
726f6388 JA |
490 | |
491 | #endif /* SPECIFIC_COMPLETION_FUNCTIONS */ | |
492 | ||
95732b49 JA |
493 | kseq[0] = TAB; |
494 | kseq[1] = '\0'; | |
495 | func = rl_function_of_keyseq (kseq, emacs_meta_keymap, (int *)NULL); | |
496 | if (func == 0 || func == rl_tab_insert) | |
497 | rl_bind_key_in_map (TAB, dynamic_complete_history, emacs_meta_keymap); | |
726f6388 JA |
498 | |
499 | /* Tell the completer that we want a crack first. */ | |
28ef6c31 | 500 | rl_attempted_completion_function = attempt_shell_completion; |
726f6388 JA |
501 | |
502 | /* Tell the completer that we might want to follow symbolic links or | |
503 | do other expansion on directory names. */ | |
495aee44 | 504 | rl_directory_rewrite_hook = bash_directory_completion_hook; |
726f6388 | 505 | |
0001803f CR |
506 | rl_filename_rewrite_hook = bash_filename_rewrite_hook; |
507 | ||
726f6388 | 508 | /* Tell the filename completer we want a chance to ignore some names. */ |
28ef6c31 | 509 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 | 510 | |
7117c2d2 | 511 | /* Bind C-xC-e to invoke emacs and run result as commands. */ |
b80f6443 | 512 | rl_bind_key_if_unbound_in_map (CTRL ('E'), emacs_edit_and_execute_command, emacs_ctlx_keymap); |
726f6388 | 513 | #if defined (VI_MODE) |
b80f6443 | 514 | rl_bind_key_if_unbound_in_map ('v', vi_edit_and_execute_command, vi_movement_keymap); |
ccc6cda3 | 515 | # if defined (ALIAS) |
b80f6443 | 516 | rl_bind_key_if_unbound_in_map ('@', posix_edit_macros, vi_movement_keymap); |
ccc6cda3 | 517 | # endif |
b80f6443 JA |
518 | |
519 | rl_bind_key_in_map ('\\', bash_vi_complete, vi_movement_keymap); | |
520 | rl_bind_key_in_map ('*', bash_vi_complete, vi_movement_keymap); | |
521 | rl_bind_key_in_map ('=', bash_vi_complete, vi_movement_keymap); | |
726f6388 JA |
522 | #endif |
523 | ||
524 | rl_completer_quote_characters = "'\""; | |
ccc6cda3 JA |
525 | |
526 | /* This sets rl_completer_word_break_characters and rl_special_prefixes | |
527 | to the appropriate values, depending on whether or not hostname | |
528 | completion is enabled. */ | |
529 | enable_hostname_completion (perform_hostname_completion); | |
530 | ||
531 | /* characters that need to be quoted when appearing in filenames. */ | |
3185942a | 532 | rl_filename_quote_characters = " \t\n\\\"'@<>=;|&()#$`?*[!:{~"; /*}*/ |
495aee44 | 533 | |
ccc6cda3 JA |
534 | rl_filename_quoting_function = bash_quote_filename; |
535 | rl_filename_dequoting_function = bash_dequote_filename; | |
536 | rl_char_is_quoted_p = char_is_quoted; | |
726f6388 | 537 | |
7117c2d2 JA |
538 | #if 0 |
539 | /* This is superfluous and makes it impossible to use tab completion in | |
540 | vi mode even when explicitly binding it in ~/.inputrc. sv_strict_posix() | |
541 | should already have called posix_readline_initialize() when | |
542 | posixly_correct was set. */ | |
726f6388 JA |
543 | if (posixly_correct) |
544 | posix_readline_initialize (1); | |
7117c2d2 | 545 | #endif |
726f6388 JA |
546 | |
547 | bash_readline_initialized = 1; | |
548 | } | |
549 | ||
3185942a JA |
550 | void |
551 | bashline_reinitialize () | |
552 | { | |
553 | bash_readline_initialized = 0; | |
554 | } | |
555 | ||
726f6388 JA |
556 | /* On Sun systems at least, rl_attempted_completion_function can end up |
557 | getting set to NULL, and rl_completion_entry_function set to do command | |
558 | word completion if Bash is interrupted while trying to complete a command | |
559 | word. This just resets all the completion functions to the right thing. | |
560 | It's called from throw_to_top_level(). */ | |
561 | void | |
3185942a | 562 | bashline_reset () |
726f6388 JA |
563 | { |
564 | tilde_initialize (); | |
565 | rl_attempted_completion_function = attempt_shell_completion; | |
28ef6c31 | 566 | rl_completion_entry_function = NULL; |
495aee44 | 567 | rl_directory_rewrite_hook = bash_directory_completion_hook; |
28ef6c31 | 568 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 JA |
569 | } |
570 | ||
571 | /* Contains the line to push into readline. */ | |
572 | static char *push_to_readline = (char *)NULL; | |
573 | ||
574 | /* Push the contents of push_to_readline into the | |
575 | readline buffer. */ | |
28ef6c31 | 576 | static int |
726f6388 JA |
577 | bash_push_line () |
578 | { | |
579 | if (push_to_readline) | |
580 | { | |
581 | rl_insert_text (push_to_readline); | |
582 | free (push_to_readline); | |
583 | push_to_readline = (char *)NULL; | |
584 | rl_startup_hook = old_rl_startup_hook; | |
585 | } | |
28ef6c31 | 586 | return 0; |
726f6388 JA |
587 | } |
588 | ||
589 | /* Call this to set the initial text for the next line to read | |
590 | from readline. */ | |
591 | int | |
592 | bash_re_edit (line) | |
593 | char *line; | |
594 | { | |
ccc6cda3 | 595 | FREE (push_to_readline); |
726f6388 JA |
596 | |
597 | push_to_readline = savestring (line); | |
598 | old_rl_startup_hook = rl_startup_hook; | |
28ef6c31 | 599 | rl_startup_hook = bash_push_line; |
726f6388 JA |
600 | |
601 | return (0); | |
602 | } | |
603 | ||
28ef6c31 | 604 | static int |
726f6388 JA |
605 | display_shell_version (count, c) |
606 | int count, c; | |
607 | { | |
28ef6c31 | 608 | rl_crlf (); |
ccc6cda3 | 609 | show_shell_version (0); |
726f6388 JA |
610 | putc ('\r', rl_outstream); |
611 | fflush (rl_outstream); | |
612 | rl_on_new_line (); | |
613 | rl_redisplay (); | |
28ef6c31 | 614 | return 0; |
726f6388 JA |
615 | } |
616 | ||
617 | /* **************************************************************** */ | |
618 | /* */ | |
619 | /* Readline Stuff */ | |
620 | /* */ | |
621 | /* **************************************************************** */ | |
622 | ||
623 | /* If the user requests hostname completion, then simply build a list | |
bb70624e JA |
624 | of hosts, and complete from that forever more, or at least until |
625 | HOSTFILE is unset. */ | |
726f6388 | 626 | |
bb70624e | 627 | /* THIS SHOULD BE A STRINGLIST. */ |
726f6388 JA |
628 | /* The kept list of hostnames. */ |
629 | static char **hostname_list = (char **)NULL; | |
630 | ||
631 | /* The physical size of the above list. */ | |
ccc6cda3 | 632 | static int hostname_list_size; |
726f6388 | 633 | |
ccc6cda3 JA |
634 | /* The number of hostnames in the above list. */ |
635 | static int hostname_list_length; | |
726f6388 JA |
636 | |
637 | /* Whether or not HOSTNAME_LIST has been initialized. */ | |
638 | int hostname_list_initialized = 0; | |
639 | ||
726f6388 JA |
640 | /* Initialize the hostname completion table. */ |
641 | static void | |
642 | initialize_hostname_list () | |
643 | { | |
644 | char *temp; | |
645 | ||
646 | temp = get_string_value ("HOSTFILE"); | |
ccc6cda3 | 647 | if (temp == 0) |
726f6388 | 648 | temp = get_string_value ("hostname_completion_file"); |
ccc6cda3 JA |
649 | if (temp == 0) |
650 | temp = DEFAULT_HOSTS_FILE; | |
726f6388 JA |
651 | |
652 | snarf_hosts_from_file (temp); | |
726f6388 JA |
653 | |
654 | if (hostname_list) | |
655 | hostname_list_initialized++; | |
656 | } | |
657 | ||
658 | /* Add NAME to the list of hosts. */ | |
659 | static void | |
660 | add_host_name (name) | |
661 | char *name; | |
662 | { | |
663 | if (hostname_list_length + 2 > hostname_list_size) | |
664 | { | |
ccc6cda3 | 665 | hostname_list_size = (hostname_list_size + 32) - (hostname_list_size % 32); |
7117c2d2 | 666 | hostname_list = strvec_resize (hostname_list, hostname_list_size); |
726f6388 JA |
667 | } |
668 | ||
ccc6cda3 JA |
669 | hostname_list[hostname_list_length++] = savestring (name); |
670 | hostname_list[hostname_list_length] = (char *)NULL; | |
726f6388 JA |
671 | } |
672 | ||
673 | #define cr_whitespace(c) ((c) == '\r' || (c) == '\n' || whitespace(c)) | |
674 | ||
675 | static void | |
676 | snarf_hosts_from_file (filename) | |
677 | char *filename; | |
678 | { | |
ccc6cda3 | 679 | FILE *file; |
726f6388 JA |
680 | char *temp, buffer[256], name[256]; |
681 | register int i, start; | |
682 | ||
ccc6cda3 JA |
683 | file = fopen (filename, "r"); |
684 | if (file == 0) | |
726f6388 JA |
685 | return; |
686 | ||
687 | while (temp = fgets (buffer, 255, file)) | |
688 | { | |
689 | /* Skip to first character. */ | |
ccc6cda3 JA |
690 | for (i = 0; buffer[i] && cr_whitespace (buffer[i]); i++) |
691 | ; | |
726f6388 | 692 | |
ccc6cda3 JA |
693 | /* If comment or blank line, ignore. */ |
694 | if (buffer[i] == '\0' || buffer[i] == '#') | |
726f6388 JA |
695 | continue; |
696 | ||
697 | /* If `preprocessor' directive, do the include. */ | |
ccc6cda3 | 698 | if (strncmp (buffer + i, "$include ", 9) == 0) |
726f6388 | 699 | { |
ccc6cda3 | 700 | char *incfile, *t; |
726f6388 JA |
701 | |
702 | /* Find start of filename. */ | |
ccc6cda3 JA |
703 | for (incfile = buffer + i + 9; *incfile && whitespace (*incfile); incfile++) |
704 | ; | |
726f6388 JA |
705 | |
706 | /* Find end of filename. */ | |
ccc6cda3 JA |
707 | for (t = incfile; *t && cr_whitespace (*t) == 0; t++) |
708 | ; | |
726f6388 JA |
709 | |
710 | *t = '\0'; | |
711 | ||
ccc6cda3 | 712 | snarf_hosts_from_file (incfile); |
726f6388 JA |
713 | continue; |
714 | } | |
715 | ||
ccc6cda3 | 716 | /* Skip internet address if present. */ |
f73dda09 | 717 | if (DIGIT (buffer[i])) |
ccc6cda3 | 718 | for (; buffer[i] && cr_whitespace (buffer[i]) == 0; i++); |
726f6388 JA |
719 | |
720 | /* Gobble up names. Each name is separated with whitespace. */ | |
ccc6cda3 | 721 | while (buffer[i]) |
726f6388 | 722 | { |
ccc6cda3 JA |
723 | for (; cr_whitespace (buffer[i]); i++) |
724 | ; | |
725 | if (buffer[i] == '\0' || buffer[i] == '#') | |
726 | break; | |
727 | ||
728 | /* Isolate the current word. */ | |
729 | for (start = i; buffer[i] && cr_whitespace (buffer[i]) == 0; i++) | |
730 | ; | |
731 | if (i == start) | |
726f6388 JA |
732 | continue; |
733 | strncpy (name, buffer + start, i - start); | |
734 | name[i - start] = '\0'; | |
735 | add_host_name (name); | |
736 | } | |
737 | } | |
738 | fclose (file); | |
739 | } | |
740 | ||
bb70624e JA |
741 | /* Return the hostname list. */ |
742 | char ** | |
743 | get_hostname_list () | |
744 | { | |
745 | if (hostname_list_initialized == 0) | |
746 | initialize_hostname_list (); | |
747 | return (hostname_list); | |
748 | } | |
749 | ||
750 | void | |
751 | clear_hostname_list () | |
752 | { | |
753 | register int i; | |
754 | ||
755 | if (hostname_list_initialized == 0) | |
756 | return; | |
757 | for (i = 0; i < hostname_list_length; i++) | |
758 | free (hostname_list[i]); | |
0001803f | 759 | hostname_list_length = hostname_list_initialized = 0; |
bb70624e JA |
760 | } |
761 | ||
726f6388 JA |
762 | /* Return a NULL terminated list of hostnames which begin with TEXT. |
763 | Initialize the hostname list the first time if neccessary. | |
764 | The array is malloc ()'ed, but not the individual strings. */ | |
765 | static char ** | |
766 | hostnames_matching (text) | |
767 | char *text; | |
768 | { | |
ccc6cda3 JA |
769 | register int i, len, nmatch, rsize; |
770 | char **result; | |
726f6388 | 771 | |
ccc6cda3 JA |
772 | if (hostname_list_initialized == 0) |
773 | initialize_hostname_list (); | |
726f6388 | 774 | |
ccc6cda3 JA |
775 | if (hostname_list_initialized == 0) |
776 | return ((char **)NULL); | |
726f6388 JA |
777 | |
778 | /* Special case. If TEXT consists of nothing, then the whole list is | |
779 | what is desired. */ | |
ccc6cda3 | 780 | if (*text == '\0') |
726f6388 | 781 | { |
7117c2d2 | 782 | result = strvec_create (1 + hostname_list_length); |
726f6388 JA |
783 | for (i = 0; i < hostname_list_length; i++) |
784 | result[i] = hostname_list[i]; | |
785 | result[i] = (char *)NULL; | |
786 | return (result); | |
787 | } | |
788 | ||
789 | /* Scan until found, or failure. */ | |
ccc6cda3 JA |
790 | len = strlen (text); |
791 | result = (char **)NULL; | |
792 | for (i = nmatch = rsize = 0; i < hostname_list_length; i++) | |
726f6388 | 793 | { |
ccc6cda3 | 794 | if (STREQN (text, hostname_list[i], len) == 0) |
28ef6c31 | 795 | continue; |
726f6388 | 796 | |
ccc6cda3 | 797 | /* OK, it matches. Add it to the list. */ |
bc4cd23c | 798 | if (nmatch >= (rsize - 1)) |
726f6388 | 799 | { |
ccc6cda3 | 800 | rsize = (rsize + 16) - (rsize % 16); |
7117c2d2 | 801 | result = strvec_resize (result, rsize); |
726f6388 JA |
802 | } |
803 | ||
ccc6cda3 | 804 | result[nmatch++] = hostname_list[i]; |
726f6388 | 805 | } |
ccc6cda3 JA |
806 | if (nmatch) |
807 | result[nmatch] = (char *)NULL; | |
808 | return (result); | |
726f6388 JA |
809 | } |
810 | ||
ccc6cda3 | 811 | /* The equivalent of the Korn shell C-o operate-and-get-next-history-line |
726f6388 | 812 | editing command. */ |
ccc6cda3 | 813 | static int saved_history_line_to_use = -1; |
726f6388 | 814 | |
28ef6c31 | 815 | static int |
726f6388 JA |
816 | set_saved_history () |
817 | { | |
ccc6cda3 | 818 | if (saved_history_line_to_use >= 0) |
b72432fd | 819 | rl_get_previous_history (history_length - saved_history_line_to_use, 0); |
ccc6cda3 | 820 | saved_history_line_to_use = -1; |
726f6388 | 821 | rl_startup_hook = old_rl_startup_hook; |
f73dda09 | 822 | return (0); |
ccc6cda3 | 823 | } |
726f6388 | 824 | |
28ef6c31 | 825 | static int |
726f6388 JA |
826 | operate_and_get_next (count, c) |
827 | int count, c; | |
828 | { | |
829 | int where; | |
830 | ||
831 | /* Accept the current line. */ | |
b72432fd | 832 | rl_newline (1, c); |
726f6388 JA |
833 | |
834 | /* Find the current line, and find the next line to use. */ | |
835 | where = where_history (); | |
836 | ||
28ef6c31 | 837 | if ((history_is_stifled () && (history_length >= history_max_entries)) || |
726f6388 JA |
838 | (where >= history_length - 1)) |
839 | saved_history_line_to_use = where; | |
840 | else | |
841 | saved_history_line_to_use = where + 1; | |
842 | ||
843 | old_rl_startup_hook = rl_startup_hook; | |
28ef6c31 JA |
844 | rl_startup_hook = set_saved_history; |
845 | ||
846 | return 0; | |
726f6388 JA |
847 | } |
848 | ||
726f6388 JA |
849 | /* This vi mode command causes VI_EDIT_COMMAND to be run on the current |
850 | command being entered (if no explicit argument is given), otherwise on | |
851 | a command from the history file. */ | |
852 | ||
b80f6443 JA |
853 | #define VI_EDIT_COMMAND "fc -e \"${VISUAL:-${EDITOR:-vi}}\"" |
854 | #define EMACS_EDIT_COMMAND "fc -e \"${VISUAL:-${EDITOR:-emacs}}\"" | |
95732b49 | 855 | #define POSIX_VI_EDIT_COMMAND "fc -e vi" |
726f6388 | 856 | |
28ef6c31 | 857 | static int |
7117c2d2 JA |
858 | edit_and_execute_command (count, c, editing_mode, edit_command) |
859 | int count, c, editing_mode; | |
860 | char *edit_command; | |
726f6388 | 861 | { |
3185942a | 862 | char *command, *metaval; |
495aee44 CR |
863 | int r, rrs, metaflag; |
864 | sh_parser_state_t ps; | |
f73dda09 JA |
865 | |
866 | rrs = rl_readline_state; | |
495aee44 | 867 | saved_command_line_count = current_command_line_count; |
726f6388 JA |
868 | |
869 | /* Accept the current line. */ | |
b72432fd | 870 | rl_newline (1, c); |
726f6388 JA |
871 | |
872 | if (rl_explicit_arg) | |
873 | { | |
7117c2d2 JA |
874 | command = (char *)xmalloc (strlen (edit_command) + 8); |
875 | sprintf (command, "%s %d", edit_command, count); | |
726f6388 JA |
876 | } |
877 | else | |
878 | { | |
879 | /* Take the command we were just editing, add it to the history file, | |
880 | then call fc to operate on it. We have to add a dummy command to | |
881 | the end of the history because fc ignores the last command (assumes | |
882 | it's supposed to deal with the command before the `fc'). */ | |
495aee44 CR |
883 | /* This breaks down when using command-oriented history and are not |
884 | finished with the command, so we should not ignore the last command */ | |
726f6388 | 885 | using_history (); |
d166f048 JA |
886 | bash_add_history (rl_line_buffer); |
887 | bash_add_history (""); | |
726f6388 JA |
888 | history_lines_this_session++; |
889 | using_history (); | |
7117c2d2 | 890 | command = savestring (edit_command); |
726f6388 | 891 | } |
7117c2d2 | 892 | |
3185942a JA |
893 | metaval = rl_variable_value ("input-meta"); |
894 | metaflag = RL_BOOLEAN_VARIABLE_VALUE (metaval); | |
895 | ||
7117c2d2 JA |
896 | /* Now, POSIX.1-2001 and SUSv3 say that the commands executed from the |
897 | temporary file should be placed into the history. We don't do that | |
898 | yet. */ | |
3185942a JA |
899 | if (rl_deprep_term_function) |
900 | (*rl_deprep_term_function) (); | |
495aee44 | 901 | save_parser_state (&ps); |
7117c2d2 | 902 | r = parse_and_execute (command, (editing_mode == VI_EDITING_MODE) ? "v" : "C-xC-e", SEVAL_NOHIST); |
495aee44 | 903 | restore_parser_state (&ps); |
3185942a JA |
904 | if (rl_prep_term_function) |
905 | (*rl_prep_term_function) (metaflag); | |
f73dda09 | 906 | |
495aee44 | 907 | current_command_line_count = saved_command_line_count; |
f73dda09 JA |
908 | |
909 | /* Now erase the contents of the current line and undo the effects of the | |
910 | rl_accept_line() above. We don't even want to make the text we just | |
911 | executed available for undoing. */ | |
ccc6cda3 | 912 | rl_line_buffer[0] = '\0'; /* XXX */ |
f73dda09 JA |
913 | rl_point = rl_end = 0; |
914 | rl_done = 0; | |
915 | rl_readline_state = rrs; | |
916 | ||
917 | rl_forced_update_display (); | |
28ef6c31 JA |
918 | |
919 | return r; | |
726f6388 | 920 | } |
7117c2d2 JA |
921 | |
922 | #if defined (VI_MODE) | |
923 | static int | |
924 | vi_edit_and_execute_command (count, c) | |
925 | int count, c; | |
926 | { | |
95732b49 JA |
927 | if (posixly_correct) |
928 | return (edit_and_execute_command (count, c, VI_EDITING_MODE, POSIX_VI_EDIT_COMMAND)); | |
929 | else | |
930 | return (edit_and_execute_command (count, c, VI_EDITING_MODE, VI_EDIT_COMMAND)); | |
7117c2d2 | 931 | } |
726f6388 JA |
932 | #endif /* VI_MODE */ |
933 | ||
7117c2d2 JA |
934 | static int |
935 | emacs_edit_and_execute_command (count, c) | |
936 | int count, c; | |
937 | { | |
938 | return (edit_and_execute_command (count, c, EMACS_EDITING_MODE, EMACS_EDIT_COMMAND)); | |
939 | } | |
940 | ||
ccc6cda3 JA |
941 | #if defined (ALIAS) |
942 | static int | |
943 | posix_edit_macros (count, key) | |
944 | int count, key; | |
945 | { | |
946 | int c; | |
947 | char alias_name[3], *alias_value, *macro; | |
948 | ||
949 | c = rl_read_key (); | |
950 | alias_name[0] = '_'; | |
951 | alias_name[1] = c; | |
952 | alias_name[2] = '\0'; | |
953 | ||
954 | alias_value = get_alias_value (alias_name); | |
955 | if (alias_value && *alias_value) | |
956 | { | |
957 | macro = savestring (alias_value); | |
958 | rl_push_macro_input (macro); | |
959 | } | |
960 | return 0; | |
961 | } | |
962 | #endif | |
963 | ||
3185942a JA |
964 | /* Bindable commands that move `shell-words': that is, sequences of |
965 | non-unquoted-metacharacters. */ | |
966 | ||
967 | #define WORDDELIM(c) (shellmeta(c) || shellblank(c)) | |
968 | ||
969 | static int | |
970 | bash_forward_shellword (count, key) | |
971 | int count, key; | |
972 | { | |
973 | size_t slen; | |
974 | int sindex, c, p; | |
975 | DECLARE_MBSTATE; | |
976 | ||
977 | if (count < 0) | |
978 | return (bash_backward_shellword (-count, key)); | |
979 | ||
980 | /* The tricky part of this is deciding whether or not the first character | |
981 | we're on is an unquoted metacharacter. Not completely handled yet. */ | |
982 | /* XXX - need to test this stuff with backslash-escaped shell | |
983 | metacharacters and unclosed single- and double-quoted strings. */ | |
984 | ||
985 | p = rl_point; | |
986 | slen = rl_end; | |
987 | ||
988 | while (count) | |
989 | { | |
990 | if (p == rl_end) | |
991 | { | |
992 | rl_point = rl_end; | |
993 | return 0; | |
994 | } | |
995 | ||
495aee44 CR |
996 | /* Are we in a quoted string? If we are, move to the end of the quoted |
997 | string and continue the outer loop. We only want quoted strings, not | |
998 | backslash-escaped characters, but char_is_quoted doesn't | |
999 | differentiate. */ | |
1000 | if (char_is_quoted (rl_line_buffer, p) && p > 0 && rl_line_buffer[p-1] != '\\') | |
1001 | { | |
1002 | do | |
1003 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1004 | while (p < rl_end && char_is_quoted (rl_line_buffer, p)); | |
1005 | count--; | |
1006 | continue; | |
1007 | } | |
1008 | ||
1009 | /* Rest of code assumes we are not in a quoted string. */ | |
3185942a JA |
1010 | /* Move forward until we hit a non-metacharacter. */ |
1011 | while (p < rl_end && (c = rl_line_buffer[p]) && WORDDELIM (c)) | |
1012 | { | |
1013 | switch (c) | |
1014 | { | |
1015 | default: | |
1016 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1017 | continue; /* straight back to loop, don't increment p */ | |
1018 | case '\\': | |
1019 | if (p < rl_end && rl_line_buffer[p]) | |
1020 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1021 | break; | |
1022 | case '\'': | |
1023 | p = skip_to_delim (rl_line_buffer, ++p, "'", SD_NOJMP); | |
1024 | break; | |
1025 | case '"': | |
1026 | p = skip_to_delim (rl_line_buffer, ++p, "\"", SD_NOJMP); | |
1027 | break; | |
1028 | } | |
1029 | ||
1030 | if (p < rl_end) | |
1031 | p++; | |
1032 | } | |
1033 | ||
1034 | if (rl_line_buffer[p] == 0 || p == rl_end) | |
1035 | { | |
1036 | rl_point = rl_end; | |
1037 | rl_ding (); | |
1038 | return 0; | |
1039 | } | |
1040 | ||
1041 | /* Now move forward until we hit a non-quoted metacharacter or EOL */ | |
1042 | while (p < rl_end && (c = rl_line_buffer[p]) && WORDDELIM (c) == 0) | |
1043 | { | |
1044 | switch (c) | |
1045 | { | |
1046 | default: | |
1047 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1048 | continue; /* straight back to loop, don't increment p */ | |
1049 | case '\\': | |
1050 | if (p < rl_end && rl_line_buffer[p]) | |
1051 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1052 | break; | |
1053 | case '\'': | |
1054 | p = skip_to_delim (rl_line_buffer, ++p, "'", SD_NOJMP); | |
1055 | break; | |
1056 | case '"': | |
1057 | p = skip_to_delim (rl_line_buffer, ++p, "\"", SD_NOJMP); | |
1058 | break; | |
1059 | } | |
1060 | ||
1061 | if (p < rl_end) | |
1062 | p++; | |
1063 | } | |
1064 | ||
1065 | if (p == rl_end || rl_line_buffer[p] == 0) | |
1066 | { | |
1067 | rl_point = rl_end; | |
1068 | return (0); | |
1069 | } | |
1070 | ||
1071 | count--; | |
1072 | } | |
1073 | ||
1074 | rl_point = p; | |
1075 | return (0); | |
1076 | } | |
1077 | ||
1078 | static int | |
1079 | bash_backward_shellword (count, key) | |
1080 | int count, key; | |
1081 | { | |
1082 | size_t slen; | |
1083 | int sindex, c, p; | |
1084 | DECLARE_MBSTATE; | |
1085 | ||
1086 | if (count < 0) | |
1087 | return (bash_forward_shellword (-count, key)); | |
1088 | ||
1089 | p = rl_point; | |
1090 | slen = rl_end; | |
1091 | ||
1092 | while (count) | |
1093 | { | |
1094 | if (p == 0) | |
1095 | { | |
1096 | rl_point = 0; | |
1097 | return 0; | |
1098 | } | |
1099 | ||
1100 | /* Move backward until we hit a non-metacharacter. */ | |
1101 | while (p > 0) | |
1102 | { | |
1103 | c = rl_line_buffer[p]; | |
1104 | if (WORDDELIM (c) && char_is_quoted (rl_line_buffer, p) == 0) | |
1105 | BACKUP_CHAR (rl_line_buffer, slen, p); | |
1106 | break; | |
1107 | } | |
1108 | ||
1109 | if (p == 0) | |
1110 | { | |
1111 | rl_point = 0; | |
1112 | return 0; | |
1113 | } | |
1114 | ||
1115 | /* Now move backward until we hit a metacharacter or BOL. */ | |
1116 | while (p > 0) | |
1117 | { | |
1118 | c = rl_line_buffer[p]; | |
1119 | if (WORDDELIM (c) && char_is_quoted (rl_line_buffer, p) == 0) | |
1120 | break; | |
1121 | BACKUP_CHAR (rl_line_buffer, slen, p); | |
1122 | } | |
1123 | ||
1124 | count--; | |
1125 | } | |
1126 | ||
1127 | rl_point = p; | |
1128 | return 0; | |
1129 | } | |
1130 | ||
1131 | static int | |
1132 | bash_kill_shellword (count, key) | |
1133 | int count, key; | |
1134 | { | |
1135 | int p; | |
1136 | ||
1137 | if (count < 0) | |
1138 | return (bash_backward_kill_shellword (-count, key)); | |
1139 | ||
1140 | p = rl_point; | |
1141 | bash_forward_shellword (count, key); | |
1142 | ||
1143 | if (rl_point != p) | |
1144 | rl_kill_text (p, rl_point); | |
1145 | ||
1146 | rl_point = p; | |
1147 | if (rl_editing_mode == 1) /* 1 == emacs_mode */ | |
1148 | rl_mark = rl_point; | |
1149 | ||
1150 | return 0; | |
1151 | } | |
1152 | ||
1153 | static int | |
1154 | bash_backward_kill_shellword (count, key) | |
1155 | int count, key; | |
1156 | { | |
1157 | int p; | |
1158 | ||
1159 | if (count < 0) | |
1160 | return (bash_kill_shellword (-count, key)); | |
1161 | ||
1162 | p = rl_point; | |
1163 | bash_backward_shellword (count, key); | |
1164 | ||
1165 | if (rl_point != p) | |
1166 | rl_kill_text (p, rl_point); | |
1167 | ||
1168 | if (rl_editing_mode == 1) /* 1 == emacs_mode */ | |
1169 | rl_mark = rl_point; | |
1170 | ||
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | ||
726f6388 JA |
1175 | /* **************************************************************** */ |
1176 | /* */ | |
1177 | /* How To Do Shell Completion */ | |
1178 | /* */ | |
1179 | /* **************************************************************** */ | |
1180 | ||
bb70624e | 1181 | #define COMMAND_SEPARATORS ";|&{(`" |
b80f6443 | 1182 | /* )} */ |
bb70624e JA |
1183 | |
1184 | static int | |
1185 | check_redir (ti) | |
1186 | int ti; | |
1187 | { | |
1188 | register int this_char, prev_char; | |
1189 | ||
1190 | /* Handle the two character tokens `>&', `<&', and `>|'. | |
1191 | We are not in a command position after one of these. */ | |
1192 | this_char = rl_line_buffer[ti]; | |
1193 | prev_char = rl_line_buffer[ti - 1]; | |
1194 | ||
1195 | if ((this_char == '&' && (prev_char == '<' || prev_char == '>')) || | |
1196 | (this_char == '|' && prev_char == '>')) | |
1197 | return (1); | |
1198 | else if ((this_char == '{' && prev_char == '$') || /* } */ | |
1199 | (char_is_quoted (rl_line_buffer, ti))) | |
1200 | return (1); | |
1201 | return (0); | |
1202 | } | |
1203 | ||
1204 | #if defined (PROGRAMMABLE_COMPLETION) | |
f73dda09 JA |
1205 | /* |
1206 | * XXX - because of the <= start test, and setting os = s+1, this can | |
1207 | * potentially return os > start. This is probably not what we want to | |
1208 | * happen, but fix later after 2.05a-release. | |
1209 | */ | |
bb70624e JA |
1210 | static int |
1211 | find_cmd_start (start) | |
1212 | int start; | |
1213 | { | |
1214 | register int s, os; | |
1215 | ||
1216 | os = 0; | |
0001803f | 1217 | while (((s = skip_to_delim (rl_line_buffer, os, COMMAND_SEPARATORS, SD_NOJMP|SD_NOSKIPCMD)) <= start) && |
bb70624e JA |
1218 | rl_line_buffer[s]) |
1219 | os = s+1; | |
1220 | return os; | |
1221 | } | |
1222 | ||
1223 | static int | |
1224 | find_cmd_end (end) | |
1225 | int end; | |
1226 | { | |
1227 | register int e; | |
1228 | ||
3185942a | 1229 | e = skip_to_delim (rl_line_buffer, end, COMMAND_SEPARATORS, SD_NOJMP); |
bb70624e JA |
1230 | return e; |
1231 | } | |
1232 | ||
1233 | static char * | |
1234 | find_cmd_name (start) | |
1235 | int start; | |
1236 | { | |
1237 | char *name; | |
1238 | register int s, e; | |
1239 | ||
1240 | for (s = start; whitespace (rl_line_buffer[s]); s++) | |
1241 | ; | |
1242 | ||
1243 | /* skip until a shell break character */ | |
3185942a | 1244 | e = skip_to_delim (rl_line_buffer, s, "()<>;&| \t\n", SD_NOJMP); |
bb70624e JA |
1245 | |
1246 | name = substring (rl_line_buffer, s, e); | |
1247 | ||
1248 | return (name); | |
1249 | } | |
1250 | ||
1251 | static char * | |
1252 | prog_complete_return (text, matchnum) | |
f73dda09 | 1253 | const char *text; |
bb70624e JA |
1254 | int matchnum; |
1255 | { | |
1256 | static int ind; | |
1257 | ||
1258 | if (matchnum == 0) | |
1259 | ind = 0; | |
1260 | ||
1261 | if (prog_complete_matches == 0 || prog_complete_matches[ind] == 0) | |
1262 | return (char *)NULL; | |
1263 | return (prog_complete_matches[ind++]); | |
1264 | } | |
1265 | ||
1266 | #endif /* PROGRAMMABLE_COMPLETION */ | |
1267 | ||
726f6388 JA |
1268 | /* Do some completion on TEXT. The indices of TEXT in RL_LINE_BUFFER are |
1269 | at START and END. Return an array of matches, or NULL if none. */ | |
1270 | static char ** | |
1271 | attempt_shell_completion (text, start, end) | |
28ef6c31 | 1272 | const char *text; |
726f6388 JA |
1273 | int start, end; |
1274 | { | |
0628567a | 1275 | int in_command_position, ti, saveti, qc, dflags; |
ccc6cda3 | 1276 | char **matches, *command_separator_chars; |
726f6388 | 1277 | |
bb70624e | 1278 | command_separator_chars = COMMAND_SEPARATORS; |
ccc6cda3 | 1279 | matches = (char **)NULL; |
28ef6c31 | 1280 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 JA |
1281 | |
1282 | /* Determine if this could be a command word. It is if it appears at | |
1283 | the start of the line (ignoring preceding whitespace), or if it | |
1284 | appears after a character that separates commands. It cannot be a | |
1285 | command word if we aren't at the top-level prompt. */ | |
1286 | ti = start - 1; | |
bb70624e | 1287 | saveti = qc = -1; |
726f6388 JA |
1288 | |
1289 | while ((ti > -1) && (whitespace (rl_line_buffer[ti]))) | |
1290 | ti--; | |
1291 | ||
bb70624e JA |
1292 | #if 1 |
1293 | /* If this is an open quote, maybe we're trying to complete a quoted | |
1294 | command name. */ | |
b80f6443 | 1295 | if (ti >= 0 && (rl_line_buffer[ti] == '"' || rl_line_buffer[ti] == '\'')) |
bb70624e JA |
1296 | { |
1297 | qc = rl_line_buffer[ti]; | |
1298 | saveti = ti--; | |
1299 | while (ti > -1 && (whitespace (rl_line_buffer[ti]))) | |
28ef6c31 | 1300 | ti--; |
bb70624e JA |
1301 | } |
1302 | #endif | |
1303 | ||
726f6388 JA |
1304 | in_command_position = 0; |
1305 | if (ti < 0) | |
1306 | { | |
1307 | /* Only do command completion at the start of a line when we | |
28ef6c31 | 1308 | are prompting at the top level. */ |
726f6388 JA |
1309 | if (current_prompt_string == ps1_prompt) |
1310 | in_command_position++; | |
1311 | } | |
1312 | else if (member (rl_line_buffer[ti], command_separator_chars)) | |
1313 | { | |
726f6388 JA |
1314 | in_command_position++; |
1315 | ||
bb70624e | 1316 | if (check_redir (ti) == 1) |
28ef6c31 | 1317 | in_command_position = 0; |
726f6388 JA |
1318 | } |
1319 | else | |
1320 | { | |
1321 | /* This still could be in command position. It is possible | |
1322 | that all of the previous words on the line are variable | |
1323 | assignments. */ | |
1324 | } | |
1325 | ||
d166f048 JA |
1326 | /* Check that we haven't incorrectly flagged a closed command substitution |
1327 | as indicating we're in a command position. */ | |
e8ce775d | 1328 | if (in_command_position && ti >= 0 && rl_line_buffer[ti] == '`' && |
bb70624e | 1329 | *text != '`' && unclosed_pair (rl_line_buffer, end, "`") == 0) |
d166f048 JA |
1330 | in_command_position = 0; |
1331 | ||
1332 | /* Special handling for command substitution. If *TEXT is a backquote, | |
1333 | it can be the start or end of an old-style command substitution, or | |
1334 | unmatched. If it's unmatched, both calls to unclosed_pair will | |
0001803f CR |
1335 | succeed. Don't bother if readline found a single quote and we are |
1336 | completing on the substring. */ | |
1337 | if (*text == '`' && rl_completion_quote_character != '\'' && | |
bb70624e JA |
1338 | (in_command_position || (unclosed_pair (rl_line_buffer, start, "`") && |
1339 | unclosed_pair (rl_line_buffer, end, "`")))) | |
28ef6c31 | 1340 | matches = rl_completion_matches (text, command_subst_completion_function); |
726f6388 | 1341 | |
bb70624e JA |
1342 | #if defined (PROGRAMMABLE_COMPLETION) |
1343 | /* Attempt programmable completion. */ | |
3185942a JA |
1344 | if (matches == 0 && (in_command_position == 0 || text[0] == '\0') && |
1345 | prog_completion_enabled && (progcomp_size () > 0) && | |
1346 | current_prompt_string == ps1_prompt) | |
bb70624e JA |
1347 | { |
1348 | int s, e, foundcs; | |
1349 | char *n; | |
1350 | ||
1351 | /* XXX - don't free the members */ | |
1352 | if (prog_complete_matches) | |
1353 | free (prog_complete_matches); | |
1354 | prog_complete_matches = (char **)NULL; | |
1355 | ||
1356 | s = find_cmd_start (start); | |
1357 | e = find_cmd_end (end); | |
1358 | n = find_cmd_name (s); | |
3185942a JA |
1359 | if (e == 0 && e == s && text[0] == '\0') |
1360 | prog_complete_matches = programmable_completions ("_EmptycmD_", text, s, e, &foundcs); | |
1361 | else if (e > s && assignment (n, 0) == 0) | |
f73dda09 JA |
1362 | prog_complete_matches = programmable_completions (n, text, s, e, &foundcs); |
1363 | else | |
1364 | foundcs = 0; | |
bb70624e JA |
1365 | FREE (n); |
1366 | /* XXX - if we found a COMPSPEC for the command, just return whatever | |
1367 | the programmable completion code returns, and disable the default | |
28ef6c31 | 1368 | filename completion that readline will do unless the COPT_DEFAULT |
3185942a JA |
1369 | option has been set with the `-o default' option to complete or |
1370 | compopt. */ | |
bb70624e JA |
1371 | if (foundcs) |
1372 | { | |
3185942a | 1373 | pcomp_set_readline_variables (foundcs, 1); |
bb70624e JA |
1374 | /* Turn what the programmable completion code returns into what |
1375 | readline wants. I should have made compute_lcd_of_matches | |
1376 | external... */ | |
28ef6c31 JA |
1377 | matches = rl_completion_matches (text, prog_complete_return); |
1378 | if ((foundcs & COPT_DEFAULT) == 0) | |
1379 | rl_attempted_completion_over = 1; /* no default */ | |
b80f6443 JA |
1380 | if (matches || ((foundcs & COPT_BASHDEFAULT) == 0)) |
1381 | return (matches); | |
bb70624e JA |
1382 | } |
1383 | } | |
1384 | #endif | |
1385 | ||
b80f6443 | 1386 | if (matches == 0) |
0628567a JA |
1387 | { |
1388 | dflags = 0; | |
1389 | if (in_command_position) | |
1390 | dflags |= DEFCOMP_CMDPOS; | |
1391 | matches = bash_default_completion (text, start, end, qc, dflags); | |
1392 | } | |
b80f6443 JA |
1393 | |
1394 | return matches; | |
1395 | } | |
1396 | ||
1397 | char ** | |
0628567a | 1398 | bash_default_completion (text, start, end, qc, compflags) |
b80f6443 | 1399 | const char *text; |
0628567a | 1400 | int start, end, qc, compflags; |
b80f6443 JA |
1401 | { |
1402 | char **matches; | |
1403 | ||
1404 | matches = (char **)NULL; | |
1405 | ||
bb70624e | 1406 | /* New posix-style command substitution or variable name? */ |
726f6388 | 1407 | if (!matches && *text == '$') |
bb70624e JA |
1408 | { |
1409 | if (qc != '\'' && text[1] == '(') /* ) */ | |
28ef6c31 | 1410 | matches = rl_completion_matches (text, command_subst_completion_function); |
bb70624e | 1411 | else |
28ef6c31 | 1412 | matches = rl_completion_matches (text, variable_completion_function); |
bb70624e | 1413 | } |
726f6388 JA |
1414 | |
1415 | /* If the word starts in `~', and there is no slash in the word, then | |
1416 | try completing this word as a username. */ | |
495aee44 | 1417 | if (matches == 0 && *text == '~' && mbschr (text, '/') == 0) |
28ef6c31 | 1418 | matches = rl_completion_matches (text, rl_username_completion_function); |
726f6388 JA |
1419 | |
1420 | /* Another one. Why not? If the word starts in '@', then look through | |
1421 | the world of known hostnames for completion first. */ | |
495aee44 | 1422 | if (matches == 0 && perform_hostname_completion && *text == '@') |
28ef6c31 | 1423 | matches = rl_completion_matches (text, hostname_completion_function); |
726f6388 JA |
1424 | |
1425 | /* And last, (but not least) if this word is in a command position, then | |
1426 | complete over possible command names, including aliases, functions, | |
1427 | and command names. */ | |
0628567a | 1428 | if (matches == 0 && (compflags & DEFCOMP_CMDPOS)) |
726f6388 | 1429 | { |
0628567a JA |
1430 | /* If END == START and text[0] == 0, we are trying to complete an empty |
1431 | command word. */ | |
1432 | if (no_empty_command_completion && end == start && text[0] == '\0') | |
bb70624e JA |
1433 | { |
1434 | matches = (char **)NULL; | |
28ef6c31 | 1435 | rl_ignore_some_completions_function = bash_ignore_everything; |
bb70624e JA |
1436 | } |
1437 | else | |
1438 | { | |
b80f6443 JA |
1439 | #define CMD_IS_DIR(x) (absolute_pathname(x) == 0 && absolute_program(x) == 0 && *(x) != '~' && test_for_directory (x)) |
1440 | ||
95732b49 | 1441 | dot_in_path = 0; |
28ef6c31 | 1442 | matches = rl_completion_matches (text, command_word_completion_function); |
b80f6443 | 1443 | |
bb70624e JA |
1444 | /* If we are attempting command completion and nothing matches, we |
1445 | do not want readline to perform filename completion for us. We | |
1446 | still want to be able to complete partial pathnames, so set the | |
1447 | completion ignore function to something which will remove | |
1448 | filenames and leave directories in the match list. */ | |
1449 | if (matches == (char **)NULL) | |
28ef6c31 | 1450 | rl_ignore_some_completions_function = bash_ignore_filenames; |
95732b49 JA |
1451 | else if (matches[1] == 0 && CMD_IS_DIR(matches[0]) && dot_in_path == 0) |
1452 | /* If we found a single match, without looking in the current | |
1453 | directory (because it's not in $PATH), but the found name is | |
1454 | also a command in the current directory, suppress appending any | |
1455 | terminating character, since it's ambiguous. */ | |
1456 | { | |
1457 | rl_completion_suppress_append = 1; | |
1458 | rl_filename_completion_desired = 0; | |
1459 | } | |
b80f6443 | 1460 | else if (matches[0] && matches[1] && STREQ (matches[0], matches[1]) && CMD_IS_DIR (matches[0])) |
7117c2d2 JA |
1461 | /* There are multiple instances of the same match (duplicate |
1462 | completions haven't yet been removed). In this case, all of | |
1463 | the matches will be the same, and the duplicate removal code | |
95732b49 JA |
1464 | will distill them all down to one. We turn on |
1465 | rl_completion_suppress_append for the same reason as above. | |
7117c2d2 JA |
1466 | Remember: we only care if there's eventually a single unique |
1467 | completion. If there are multiple completions this won't | |
1468 | make a difference and the problem won't occur. */ | |
95732b49 JA |
1469 | { |
1470 | rl_completion_suppress_append = 1; | |
1471 | rl_filename_completion_desired = 0; | |
1472 | } | |
bb70624e | 1473 | } |
726f6388 JA |
1474 | } |
1475 | ||
ccc6cda3 JA |
1476 | /* This could be a globbing pattern, so try to expand it using pathname |
1477 | expansion. */ | |
f73dda09 | 1478 | if (!matches && glob_pattern_p (text)) |
e8ce775d | 1479 | { |
28ef6c31 | 1480 | matches = rl_completion_matches (text, glob_complete_word); |
e8ce775d JA |
1481 | /* A glob expression that matches more than one filename is problematic. |
1482 | If we match more than one filename, punt. */ | |
7117c2d2 | 1483 | if (matches && matches[1] && rl_completion_type == TAB) |
e8ce775d | 1484 | { |
7117c2d2 | 1485 | strvec_dispose (matches); |
e8ce775d JA |
1486 | matches = (char **)0; |
1487 | } | |
1488 | } | |
ccc6cda3 | 1489 | |
726f6388 JA |
1490 | return (matches); |
1491 | } | |
1492 | ||
1493 | /* This is the function to call when the word to complete is in a position | |
1494 | where a command word can be found. It grovels $PATH, looking for commands | |
1495 | that match. It also scans aliases, function names, and the shell_builtin | |
1496 | table. */ | |
bb70624e | 1497 | char * |
726f6388 | 1498 | command_word_completion_function (hint_text, state) |
28ef6c31 | 1499 | const char *hint_text; |
726f6388 JA |
1500 | int state; |
1501 | { | |
1502 | static char *hint = (char *)NULL; | |
1503 | static char *path = (char *)NULL; | |
1504 | static char *val = (char *)NULL; | |
1505 | static char *filename_hint = (char *)NULL; | |
95732b49 | 1506 | static char *dequoted_hint = (char *)NULL; |
3185942a JA |
1507 | static char *directory_part = (char *)NULL; |
1508 | static char **glob_matches = (char **)NULL; | |
95732b49 | 1509 | static int path_index, hint_len, dequoted_len, istate, igncase; |
0628567a | 1510 | static int mapping_over, local_index, searching_path, hint_is_dir; |
3185942a | 1511 | static int old_glob_ignore_case, globpat; |
726f6388 JA |
1512 | static SHELL_VAR **varlist = (SHELL_VAR **)NULL; |
1513 | #if defined (ALIAS) | |
ccc6cda3 | 1514 | static alias_t **alias_list = (alias_t **)NULL; |
726f6388 | 1515 | #endif /* ALIAS */ |
95732b49 | 1516 | char *temp; |
726f6388 JA |
1517 | |
1518 | /* We have to map over the possibilities for command words. If we have | |
1519 | no state, then make one just for that purpose. */ | |
3185942a | 1520 | if (state == 0) |
726f6388 | 1521 | { |
95732b49 JA |
1522 | if (dequoted_hint && dequoted_hint != hint) |
1523 | free (dequoted_hint); | |
726f6388 JA |
1524 | if (hint) |
1525 | free (hint); | |
1526 | ||
0628567a JA |
1527 | mapping_over = searching_path = 0; |
1528 | hint_is_dir = CMD_IS_DIR (hint_text); | |
726f6388 JA |
1529 | val = (char *)NULL; |
1530 | ||
95732b49 | 1531 | temp = rl_variable_value ("completion-ignore-case"); |
3185942a JA |
1532 | igncase = RL_BOOLEAN_VARIABLE_VALUE (temp); |
1533 | ||
1534 | if (glob_matches) | |
1535 | { | |
1536 | free (glob_matches); | |
1537 | glob_matches = (char **)NULL; | |
1538 | } | |
1539 | ||
1540 | globpat = glob_pattern_p (hint_text); | |
95732b49 | 1541 | |
726f6388 JA |
1542 | /* If this is an absolute program name, do not check it against |
1543 | aliases, reserved words, functions or builtins. We must check | |
1544 | whether or not it is unique, and, if so, whether that filename | |
1545 | is executable. */ | |
3185942a | 1546 | if (globpat || absolute_program (hint_text)) |
726f6388 JA |
1547 | { |
1548 | /* Perform tilde expansion on what's passed, so we don't end up | |
1549 | passing filenames with tildes directly to stat(). */ | |
1550 | if (*hint_text == '~') | |
3185942a JA |
1551 | { |
1552 | hint = bash_tilde_expand (hint_text, 0); | |
1553 | directory_part = savestring (hint_text); | |
1554 | temp = strchr (directory_part, '/'); | |
1555 | if (temp) | |
1556 | *temp = 0; | |
1557 | else | |
1558 | { | |
1559 | free (directory_part); | |
1560 | directory_part = (char *)NULL; | |
1561 | } | |
1562 | } | |
726f6388 JA |
1563 | else |
1564 | hint = savestring (hint_text); | |
95732b49 JA |
1565 | |
1566 | dequoted_hint = hint; | |
1567 | /* If readline's completer found a quote character somewhere, but | |
1568 | didn't set the quote character, there must have been a quote | |
1569 | character embedded in the filename. It can't be at the start of | |
1570 | the filename, so we need to dequote the filename before we look | |
1571 | in the file system for it. */ | |
1572 | if (rl_completion_found_quote && rl_completion_quote_character == 0) | |
1573 | { | |
1574 | dequoted_hint = bash_dequote_filename (hint, 0); | |
1575 | free (hint); | |
1576 | hint = dequoted_hint; | |
1577 | } | |
1578 | dequoted_len = hint_len = strlen (hint); | |
726f6388 JA |
1579 | |
1580 | if (filename_hint) | |
1581 | free (filename_hint); | |
95732b49 | 1582 | |
726f6388 JA |
1583 | filename_hint = savestring (hint); |
1584 | ||
726f6388 | 1585 | istate = 0; |
3185942a JA |
1586 | |
1587 | if (globpat) | |
1588 | { | |
1589 | mapping_over = 5; | |
1590 | goto globword; | |
1591 | } | |
1592 | else | |
1593 | { | |
1594 | mapping_over = 4; | |
1595 | goto inner; | |
1596 | } | |
726f6388 JA |
1597 | } |
1598 | ||
95732b49 JA |
1599 | dequoted_hint = hint = savestring (hint_text); |
1600 | dequoted_len = hint_len = strlen (hint); | |
726f6388 | 1601 | |
95732b49 JA |
1602 | if (rl_completion_found_quote && rl_completion_quote_character == 0) |
1603 | { | |
1604 | dequoted_hint = bash_dequote_filename (hint, 0); | |
1605 | dequoted_len = strlen (dequoted_hint); | |
1606 | } | |
1607 | ||
726f6388 | 1608 | path = get_string_value ("PATH"); |
95732b49 | 1609 | path_index = dot_in_path = 0; |
726f6388 JA |
1610 | |
1611 | /* Initialize the variables for each type of command word. */ | |
1612 | local_index = 0; | |
1613 | ||
1614 | if (varlist) | |
1615 | free (varlist); | |
1616 | ||
1617 | varlist = all_visible_functions (); | |
1618 | ||
1619 | #if defined (ALIAS) | |
1620 | if (alias_list) | |
1621 | free (alias_list); | |
1622 | ||
1623 | alias_list = all_aliases (); | |
1624 | #endif /* ALIAS */ | |
1625 | } | |
1626 | ||
1627 | /* mapping_over says what we are currently hacking. Note that every case | |
1628 | in this list must fall through when there are no more possibilities. */ | |
1629 | ||
1630 | switch (mapping_over) | |
1631 | { | |
1632 | case 0: /* Aliases come first. */ | |
1633 | #if defined (ALIAS) | |
1634 | while (alias_list && alias_list[local_index]) | |
1635 | { | |
1636 | register char *alias; | |
1637 | ||
1638 | alias = alias_list[local_index++]->name; | |
1639 | ||
1640 | if (STREQN (alias, hint, hint_len)) | |
1641 | return (savestring (alias)); | |
1642 | } | |
1643 | #endif /* ALIAS */ | |
1644 | local_index = 0; | |
1645 | mapping_over++; | |
1646 | ||
1647 | case 1: /* Then shell reserved words. */ | |
1648 | { | |
1649 | while (word_token_alist[local_index].word) | |
1650 | { | |
1651 | register char *reserved_word; | |
1652 | ||
1653 | reserved_word = word_token_alist[local_index++].word; | |
1654 | ||
1655 | if (STREQN (reserved_word, hint, hint_len)) | |
1656 | return (savestring (reserved_word)); | |
1657 | } | |
1658 | local_index = 0; | |
1659 | mapping_over++; | |
1660 | } | |
1661 | ||
1662 | case 2: /* Then function names. */ | |
1663 | while (varlist && varlist[local_index]) | |
1664 | { | |
1665 | register char *varname; | |
1666 | ||
1667 | varname = varlist[local_index++]->name; | |
1668 | ||
1669 | if (STREQN (varname, hint, hint_len)) | |
1670 | return (savestring (varname)); | |
1671 | } | |
1672 | local_index = 0; | |
1673 | mapping_over++; | |
1674 | ||
1675 | case 3: /* Then shell builtins. */ | |
1676 | for (; local_index < num_shell_builtins; local_index++) | |
1677 | { | |
1678 | /* Ignore it if it doesn't have a function pointer or if it | |
1679 | is not currently enabled. */ | |
1680 | if (!shell_builtins[local_index].function || | |
1681 | (shell_builtins[local_index].flags & BUILTIN_ENABLED) == 0) | |
1682 | continue; | |
1683 | ||
1684 | if (STREQN (shell_builtins[local_index].name, hint, hint_len)) | |
1685 | { | |
1686 | int i = local_index++; | |
1687 | ||
1688 | return (savestring (shell_builtins[i].name)); | |
1689 | } | |
1690 | } | |
1691 | local_index = 0; | |
1692 | mapping_over++; | |
1693 | } | |
1694 | ||
3185942a JA |
1695 | globword: |
1696 | /* Limited support for completing command words with globbing chars. Only | |
1697 | a single match (multiple matches that end up reducing the number of | |
1698 | characters in the common prefix are bad) will ever be returned on | |
1699 | regular completion. */ | |
30d188c2 | 1700 | if (globpat) |
3185942a JA |
1701 | { |
1702 | if (state == 0) | |
1703 | { | |
1704 | glob_ignore_case = igncase; | |
1705 | glob_matches = shell_glob_filename (hint); | |
1706 | glob_ignore_case = old_glob_ignore_case; | |
1707 | ||
1708 | if (GLOB_FAILED (glob_matches) || glob_matches == 0) | |
1709 | { | |
1710 | glob_matches = (char **)NULL; | |
1711 | return ((char *)NULL); | |
1712 | } | |
1713 | ||
1714 | local_index = 0; | |
1715 | ||
1716 | if (glob_matches[1] && rl_completion_type == TAB) /* multiple matches are bad */ | |
1717 | return ((char *)NULL); | |
1718 | } | |
1719 | ||
1720 | while (val = glob_matches[local_index++]) | |
1721 | { | |
1722 | if (executable_or_directory (val)) | |
1723 | { | |
1724 | if (*hint_text == '~') | |
1725 | { | |
1726 | temp = restore_tilde (val, directory_part); | |
1727 | free (val); | |
1728 | val = temp; | |
1729 | } | |
1730 | return (val); | |
1731 | } | |
1732 | free (val); | |
1733 | } | |
1734 | ||
1735 | glob_ignore_case = old_glob_ignore_case; | |
1736 | return ((char *)NULL); | |
1737 | } | |
1738 | ||
0628567a JA |
1739 | /* If the text passed is a directory in the current directory, return it |
1740 | as a possible match. Executables in directories in the current | |
1741 | directory can be specified using relative pathnames and successfully | |
1742 | executed even when `.' is not in $PATH. */ | |
1743 | if (hint_is_dir) | |
1744 | { | |
1745 | hint_is_dir = 0; /* only return the hint text once */ | |
1746 | return (savestring (hint_text)); | |
1747 | } | |
1748 | ||
ccc6cda3 | 1749 | /* Repeatedly call filename_completion_function while we have |
726f6388 JA |
1750 | members of PATH left. Question: should we stat each file? |
1751 | Answer: we call executable_file () on each file. */ | |
1752 | outer: | |
1753 | ||
1754 | istate = (val != (char *)NULL); | |
1755 | ||
3185942a | 1756 | if (istate == 0) |
726f6388 JA |
1757 | { |
1758 | char *current_path; | |
1759 | ||
1760 | /* Get the next directory from the path. If there is none, then we | |
1761 | are all done. */ | |
3185942a | 1762 | if (path == 0 || path[path_index] == 0 || |
726f6388 JA |
1763 | (current_path = extract_colon_unit (path, &path_index)) == 0) |
1764 | return ((char *)NULL); | |
1765 | ||
0628567a | 1766 | searching_path = 1; |
726f6388 JA |
1767 | if (*current_path == 0) |
1768 | { | |
1769 | free (current_path); | |
1770 | current_path = savestring ("."); | |
1771 | } | |
1772 | ||
1773 | if (*current_path == '~') | |
1774 | { | |
1775 | char *t; | |
1776 | ||
7117c2d2 | 1777 | t = bash_tilde_expand (current_path, 0); |
726f6388 JA |
1778 | free (current_path); |
1779 | current_path = t; | |
1780 | } | |
1781 | ||
95732b49 JA |
1782 | if (current_path[0] == '.' && current_path[1] == '\0') |
1783 | dot_in_path = 1; | |
1784 | ||
726f6388 JA |
1785 | if (filename_hint) |
1786 | free (filename_hint); | |
1787 | ||
7117c2d2 | 1788 | filename_hint = sh_makepath (current_path, hint, 0); |
3185942a | 1789 | free (current_path); /* XXX */ |
726f6388 JA |
1790 | } |
1791 | ||
1792 | inner: | |
28ef6c31 | 1793 | val = rl_filename_completion_function (filename_hint, istate); |
726f6388 JA |
1794 | istate = 1; |
1795 | ||
ccc6cda3 | 1796 | if (val == 0) |
726f6388 JA |
1797 | { |
1798 | /* If the hint text is an absolute program, then don't bother | |
1799 | searching through PATH. */ | |
1800 | if (absolute_program (hint)) | |
1801 | return ((char *)NULL); | |
1802 | ||
1803 | goto outer; | |
1804 | } | |
1805 | else | |
1806 | { | |
d166f048 | 1807 | int match, freetemp; |
726f6388 JA |
1808 | |
1809 | if (absolute_program (hint)) | |
1810 | { | |
95732b49 JA |
1811 | if (igncase == 0) |
1812 | match = strncmp (val, hint, hint_len) == 0; | |
1813 | else | |
1814 | match = strncasecmp (val, hint, hint_len) == 0; | |
1815 | ||
726f6388 JA |
1816 | /* If we performed tilde expansion, restore the original |
1817 | filename. */ | |
1818 | if (*hint_text == '~') | |
3185942a | 1819 | temp = restore_tilde (val, directory_part); |
726f6388 JA |
1820 | else |
1821 | temp = savestring (val); | |
d166f048 | 1822 | freetemp = 1; |
726f6388 JA |
1823 | } |
1824 | else | |
1825 | { | |
1826 | temp = strrchr (val, '/'); | |
1827 | ||
1828 | if (temp) | |
1829 | { | |
1830 | temp++; | |
95732b49 JA |
1831 | if (igncase == 0) |
1832 | freetemp = match = strncmp (temp, hint, hint_len) == 0; | |
1833 | else | |
1834 | freetemp = match = strncasecmp (temp, hint, hint_len) == 0; | |
726f6388 JA |
1835 | if (match) |
1836 | temp = savestring (temp); | |
1837 | } | |
1838 | else | |
d166f048 | 1839 | freetemp = match = 0; |
726f6388 JA |
1840 | } |
1841 | ||
0628567a | 1842 | #if 0 |
ccc6cda3 JA |
1843 | /* If we have found a match, and it is an executable file or a |
1844 | directory name, return it. */ | |
28ef6c31 | 1845 | if (match && executable_or_directory (val)) |
0628567a JA |
1846 | #else |
1847 | /* If we have found a match, and it is an executable file, return it. | |
1848 | We don't return directory names when searching $PATH, since the | |
1849 | bash execution code won't find executables in directories which | |
1850 | appear in directories in $PATH when they're specified using | |
1851 | relative pathnames. */ | |
1852 | if (match && (searching_path ? executable_file (val) : executable_or_directory (val))) | |
1853 | #endif | |
726f6388 JA |
1854 | { |
1855 | free (val); | |
1856 | val = ""; /* So it won't be NULL. */ | |
1857 | return (temp); | |
1858 | } | |
1859 | else | |
1860 | { | |
d166f048 JA |
1861 | if (freetemp) |
1862 | free (temp); | |
726f6388 JA |
1863 | free (val); |
1864 | goto inner; | |
1865 | } | |
1866 | } | |
1867 | } | |
1868 | ||
d166f048 | 1869 | /* Completion inside an unterminated command substitution. */ |
726f6388 JA |
1870 | static char * |
1871 | command_subst_completion_function (text, state) | |
28ef6c31 | 1872 | const char *text; |
ccc6cda3 | 1873 | int state; |
726f6388 JA |
1874 | { |
1875 | static char **matches = (char **)NULL; | |
28ef6c31 JA |
1876 | static const char *orig_start; |
1877 | static char *filename_text = (char *)NULL; | |
726f6388 | 1878 | static int cmd_index, start_len; |
ccc6cda3 | 1879 | char *value; |
726f6388 JA |
1880 | |
1881 | if (state == 0) | |
1882 | { | |
1883 | if (filename_text) | |
1884 | free (filename_text); | |
1885 | orig_start = text; | |
1886 | if (*text == '`') | |
28ef6c31 | 1887 | text++; |
cce855bc | 1888 | else if (*text == '$' && text[1] == '(') /* ) */ |
28ef6c31 | 1889 | text += 2; |
b80f6443 JA |
1890 | /* If the text was quoted, suppress any quote character that the |
1891 | readline completion code would insert. */ | |
1892 | rl_completion_suppress_quote = 1; | |
726f6388 JA |
1893 | start_len = text - orig_start; |
1894 | filename_text = savestring (text); | |
1895 | if (matches) | |
1896 | free (matches); | |
7117c2d2 JA |
1897 | |
1898 | /* | |
1899 | * At this point we can entertain the idea of re-parsing | |
1900 | * `filename_text' into a (possibly incomplete) command name and | |
1901 | * arguments, and doing completion based on that. This is | |
1902 | * currently very rudimentary, but it is a small improvement. | |
1903 | */ | |
1904 | for (value = filename_text + strlen (filename_text) - 1; value > filename_text; value--) | |
1905 | if (whitespace (*value) || member (*value, COMMAND_SEPARATORS)) | |
1906 | break; | |
1907 | if (value <= filename_text) | |
1908 | matches = rl_completion_matches (filename_text, command_word_completion_function); | |
1909 | else | |
1910 | { | |
1911 | value++; | |
1912 | start_len += value - filename_text; | |
1913 | if (whitespace (value[-1])) | |
1914 | matches = rl_completion_matches (value, rl_filename_completion_function); | |
1915 | else | |
1916 | matches = rl_completion_matches (value, command_word_completion_function); | |
1917 | } | |
1918 | ||
1919 | /* If there is more than one match, rl_completion_matches has already | |
1920 | put the lcd in matches[0]. Skip over it. */ | |
1921 | cmd_index = matches && matches[0] && matches[1]; | |
95732b49 JA |
1922 | |
1923 | /* If there's a single match and it's a directory, set the append char | |
1924 | to the expected `/'. Otherwise, don't append anything. */ | |
1925 | if (matches && matches[0] && matches[1] == 0 && test_for_directory (matches[0])) | |
1926 | rl_completion_append_character = '/'; | |
1927 | else | |
1928 | rl_completion_suppress_append = 1; | |
726f6388 JA |
1929 | } |
1930 | ||
1931 | if (!matches || !matches[cmd_index]) | |
1932 | { | |
1933 | rl_filename_quoting_desired = 0; /* disable quoting */ | |
1934 | return ((char *)NULL); | |
1935 | } | |
1936 | else | |
1937 | { | |
f73dda09 | 1938 | value = (char *)xmalloc (1 + start_len + strlen (matches[cmd_index])); |
726f6388 JA |
1939 | |
1940 | if (start_len == 1) | |
28ef6c31 | 1941 | value[0] = *orig_start; |
726f6388 | 1942 | else |
28ef6c31 | 1943 | strncpy (value, orig_start, start_len); |
726f6388 JA |
1944 | |
1945 | strcpy (value + start_len, matches[cmd_index]); | |
1946 | ||
1947 | cmd_index++; | |
1948 | return (value); | |
1949 | } | |
1950 | } | |
1951 | ||
1952 | /* Okay, now we write the entry_function for variable completion. */ | |
1953 | static char * | |
1954 | variable_completion_function (text, state) | |
28ef6c31 | 1955 | const char *text; |
726f6388 | 1956 | int state; |
726f6388 | 1957 | { |
bb70624e | 1958 | static char **varlist = (char **)NULL; |
726f6388 JA |
1959 | static int varlist_index; |
1960 | static char *varname = (char *)NULL; | |
1961 | static int namelen; | |
1962 | static int first_char, first_char_loc; | |
1963 | ||
1964 | if (!state) | |
1965 | { | |
1966 | if (varname) | |
1967 | free (varname); | |
1968 | ||
1969 | first_char_loc = 0; | |
1970 | first_char = text[0]; | |
1971 | ||
1972 | if (first_char == '$') | |
1973 | first_char_loc++; | |
1974 | ||
ccc6cda3 | 1975 | if (text[first_char_loc] == '{') |
28ef6c31 | 1976 | first_char_loc++; |
ccc6cda3 | 1977 | |
726f6388 JA |
1978 | varname = savestring (text + first_char_loc); |
1979 | ||
1980 | namelen = strlen (varname); | |
1981 | if (varlist) | |
7117c2d2 | 1982 | strvec_dispose (varlist); |
726f6388 | 1983 | |
bb70624e JA |
1984 | varlist = all_variables_matching_prefix (varname); |
1985 | varlist_index = 0; | |
726f6388 JA |
1986 | } |
1987 | ||
1988 | if (!varlist || !varlist[varlist_index]) | |
1989 | { | |
1990 | return ((char *)NULL); | |
1991 | } | |
1992 | else | |
1993 | { | |
f73dda09 JA |
1994 | char *value; |
1995 | ||
1996 | value = (char *)xmalloc (4 + strlen (varlist[varlist_index])); | |
726f6388 JA |
1997 | |
1998 | if (first_char_loc) | |
ccc6cda3 JA |
1999 | { |
2000 | value[0] = first_char; | |
2001 | if (first_char_loc == 2) | |
2002 | value[1] = '{'; | |
2003 | } | |
726f6388 | 2004 | |
bb70624e | 2005 | strcpy (value + first_char_loc, varlist[varlist_index]); |
ccc6cda3 | 2006 | if (first_char_loc == 2) |
28ef6c31 | 2007 | strcat (value, "}"); |
726f6388 JA |
2008 | |
2009 | varlist_index++; | |
2010 | return (value); | |
2011 | } | |
2012 | } | |
2013 | ||
2014 | /* How about a completion function for hostnames? */ | |
2015 | static char * | |
2016 | hostname_completion_function (text, state) | |
28ef6c31 | 2017 | const char *text; |
726f6388 | 2018 | int state; |
726f6388 JA |
2019 | { |
2020 | static char **list = (char **)NULL; | |
2021 | static int list_index = 0; | |
2022 | static int first_char, first_char_loc; | |
2023 | ||
2024 | /* If we don't have any state, make some. */ | |
ccc6cda3 | 2025 | if (state == 0) |
726f6388 | 2026 | { |
ccc6cda3 | 2027 | FREE (list); |
726f6388 JA |
2028 | |
2029 | list = (char **)NULL; | |
2030 | ||
2031 | first_char_loc = 0; | |
2032 | first_char = *text; | |
2033 | ||
2034 | if (first_char == '@') | |
2035 | first_char_loc++; | |
2036 | ||
f73dda09 | 2037 | list = hostnames_matching ((char *)text+first_char_loc); |
726f6388 JA |
2038 | list_index = 0; |
2039 | } | |
2040 | ||
2041 | if (list && list[list_index]) | |
2042 | { | |
ccc6cda3 | 2043 | char *t; |
726f6388 | 2044 | |
f73dda09 | 2045 | t = (char *)xmalloc (2 + strlen (list[list_index])); |
726f6388 JA |
2046 | *t = first_char; |
2047 | strcpy (t + first_char_loc, list[list_index]); | |
2048 | list_index++; | |
2049 | return (t); | |
2050 | } | |
ccc6cda3 JA |
2051 | |
2052 | return ((char *)NULL); | |
726f6388 JA |
2053 | } |
2054 | ||
7117c2d2 JA |
2055 | /* |
2056 | * A completion function for service names from /etc/services (or wherever). | |
2057 | */ | |
2058 | char * | |
2059 | bash_servicename_completion_function (text, state) | |
2060 | const char *text; | |
2061 | int state; | |
2062 | { | |
2063 | #if defined (__WIN32__) || defined (__OPENNT) || !defined (HAVE_GETSERVENT) | |
2064 | return ((char *)NULL); | |
2065 | #else | |
2066 | static char *sname = (char *)NULL; | |
2067 | static struct servent *srvent; | |
2068 | static int snamelen, firstc; | |
2069 | char *value; | |
2070 | char **alist, *aentry; | |
2071 | int afound; | |
2072 | ||
2073 | if (state == 0) | |
2074 | { | |
2075 | FREE (sname); | |
2076 | firstc = *text; | |
2077 | ||
2078 | sname = savestring (text); | |
2079 | snamelen = strlen (sname); | |
2080 | setservent (0); | |
2081 | } | |
2082 | ||
2083 | while (srvent = getservent ()) | |
2084 | { | |
2085 | afound = 0; | |
2086 | if (snamelen == 0 || (STREQN (sname, srvent->s_name, snamelen))) | |
2087 | break; | |
2088 | /* Not primary, check aliases */ | |
0628567a | 2089 | for (alist = srvent->s_aliases; *alist; alist++) |
7117c2d2 | 2090 | { |
0628567a | 2091 | aentry = *alist; |
7117c2d2 JA |
2092 | if (STREQN (sname, aentry, snamelen)) |
2093 | { | |
2094 | afound = 1; | |
2095 | break; | |
2096 | } | |
2097 | } | |
2098 | ||
2099 | if (afound) | |
2100 | break; | |
2101 | } | |
2102 | ||
2103 | if (srvent == 0) | |
2104 | { | |
2105 | endservent (); | |
2106 | return ((char *)NULL); | |
2107 | } | |
2108 | ||
2109 | value = afound ? savestring (aentry) : savestring (srvent->s_name); | |
2110 | return value; | |
2111 | #endif | |
2112 | } | |
2113 | ||
2114 | /* | |
2115 | * A completion function for group names from /etc/group (or wherever). | |
2116 | */ | |
f73dda09 JA |
2117 | char * |
2118 | bash_groupname_completion_function (text, state) | |
2119 | const char *text; | |
2120 | int state; | |
2121 | { | |
2122 | #if defined (__WIN32__) || defined (__OPENNT) || !defined (HAVE_GRP_H) | |
2123 | return ((char *)NULL); | |
2124 | #else | |
2125 | static char *gname = (char *)NULL; | |
2126 | static struct group *grent; | |
2127 | static int gnamelen; | |
2128 | char *value; | |
2129 | ||
2130 | if (state == 0) | |
2131 | { | |
2132 | FREE (gname); | |
2133 | gname = savestring (text); | |
2134 | gnamelen = strlen (gname); | |
2135 | ||
2136 | setgrent (); | |
2137 | } | |
2138 | ||
2139 | while (grent = getgrent ()) | |
2140 | { | |
2141 | if (gnamelen == 0 || (STREQN (gname, grent->gr_name, gnamelen))) | |
2142 | break; | |
2143 | } | |
2144 | ||
2145 | if (grent == 0) | |
2146 | { | |
2147 | endgrent (); | |
2148 | return ((char *)NULL); | |
2149 | } | |
2150 | ||
2151 | value = savestring (grent->gr_name); | |
2152 | return (value); | |
2153 | #endif | |
2154 | } | |
2155 | ||
cce855bc JA |
2156 | /* Functions to perform history and alias expansions on the current line. */ |
2157 | ||
2158 | #if defined (BANG_HISTORY) | |
2159 | /* Perform history expansion on the current line. If no history expansion | |
2160 | is done, pre_process_line() returns what it was passed, so we need to | |
2161 | allocate a new line here. */ | |
726f6388 JA |
2162 | static char * |
2163 | history_expand_line_internal (line) | |
2164 | char *line; | |
2165 | { | |
2166 | char *new_line; | |
b80f6443 | 2167 | int old_verify; |
726f6388 | 2168 | |
b80f6443 JA |
2169 | old_verify = hist_verify; |
2170 | hist_verify = 0; | |
726f6388 | 2171 | new_line = pre_process_line (line, 0, 0); |
b80f6443 JA |
2172 | hist_verify = old_verify; |
2173 | ||
d166f048 | 2174 | return (new_line == line) ? savestring (line) : new_line; |
726f6388 | 2175 | } |
726f6388 JA |
2176 | #endif |
2177 | ||
2178 | /* There was an error in expansion. Let the preprocessor print | |
2179 | the error here. */ | |
2180 | static void | |
2181 | cleanup_expansion_error () | |
2182 | { | |
2183 | char *to_free; | |
b80f6443 JA |
2184 | #if defined (BANG_HISTORY) |
2185 | int old_verify; | |
2186 | ||
2187 | old_verify = hist_verify; | |
2188 | hist_verify = 0; | |
2189 | #endif | |
726f6388 JA |
2190 | |
2191 | fprintf (rl_outstream, "\r\n"); | |
2192 | to_free = pre_process_line (rl_line_buffer, 1, 0); | |
b80f6443 JA |
2193 | #if defined (BANG_HISTORY) |
2194 | hist_verify = old_verify; | |
2195 | #endif | |
d166f048 | 2196 | if (to_free != rl_line_buffer) |
b80f6443 | 2197 | FREE (to_free); |
726f6388 JA |
2198 | putc ('\r', rl_outstream); |
2199 | rl_forced_update_display (); | |
2200 | } | |
2201 | ||
2202 | /* If NEW_LINE differs from what is in the readline line buffer, add an | |
2203 | undo record to get from the readline line buffer contents to the new | |
2204 | line and make NEW_LINE the current readline line. */ | |
2205 | static void | |
2206 | maybe_make_readline_line (new_line) | |
2207 | char *new_line; | |
2208 | { | |
2209 | if (strcmp (new_line, rl_line_buffer) != 0) | |
2210 | { | |
2211 | rl_point = rl_end; | |
2212 | ||
2213 | rl_add_undo (UNDO_BEGIN, 0, 0, 0); | |
2214 | rl_delete_text (0, rl_point); | |
7117c2d2 | 2215 | rl_point = rl_end = rl_mark = 0; |
726f6388 JA |
2216 | rl_insert_text (new_line); |
2217 | rl_add_undo (UNDO_END, 0, 0, 0); | |
2218 | } | |
2219 | } | |
2220 | ||
2221 | /* Make NEW_LINE be the current readline line. This frees NEW_LINE. */ | |
2222 | static void | |
2223 | set_up_new_line (new_line) | |
2224 | char *new_line; | |
2225 | { | |
f73dda09 JA |
2226 | int old_point, at_end; |
2227 | ||
2228 | old_point = rl_point; | |
2229 | at_end = rl_point == rl_end; | |
726f6388 JA |
2230 | |
2231 | /* If the line was history and alias expanded, then make that | |
2232 | be one thing to undo. */ | |
2233 | maybe_make_readline_line (new_line); | |
2234 | free (new_line); | |
2235 | ||
2236 | /* Place rl_point where we think it should go. */ | |
2237 | if (at_end) | |
2238 | rl_point = rl_end; | |
2239 | else if (old_point < rl_end) | |
2240 | { | |
2241 | rl_point = old_point; | |
2242 | if (!whitespace (rl_line_buffer[rl_point])) | |
b72432fd | 2243 | rl_forward_word (1, 0); |
726f6388 JA |
2244 | } |
2245 | } | |
2246 | ||
cce855bc JA |
2247 | #if defined (ALIAS) |
2248 | /* Expand aliases in the current readline line. */ | |
2249 | static int | |
28ef6c31 JA |
2250 | alias_expand_line (count, ignore) |
2251 | int count, ignore; | |
cce855bc JA |
2252 | { |
2253 | char *new_line; | |
2254 | ||
2255 | new_line = alias_expand (rl_line_buffer); | |
2256 | ||
2257 | if (new_line) | |
2258 | { | |
2259 | set_up_new_line (new_line); | |
2260 | return (0); | |
2261 | } | |
2262 | else | |
2263 | { | |
2264 | cleanup_expansion_error (); | |
2265 | return (1); | |
2266 | } | |
2267 | } | |
2268 | #endif | |
2269 | ||
2270 | #if defined (BANG_HISTORY) | |
726f6388 | 2271 | /* History expand the line. */ |
cce855bc | 2272 | static int |
28ef6c31 JA |
2273 | history_expand_line (count, ignore) |
2274 | int count, ignore; | |
726f6388 JA |
2275 | { |
2276 | char *new_line; | |
2277 | ||
2278 | new_line = history_expand_line_internal (rl_line_buffer); | |
2279 | ||
2280 | if (new_line) | |
cce855bc JA |
2281 | { |
2282 | set_up_new_line (new_line); | |
2283 | return (0); | |
2284 | } | |
726f6388 | 2285 | else |
cce855bc JA |
2286 | { |
2287 | cleanup_expansion_error (); | |
2288 | return (1); | |
2289 | } | |
2290 | } | |
2291 | ||
2292 | /* Expand history substitutions in the current line and then insert a | |
28ef6c31 | 2293 | space (hopefully close to where we were before). */ |
cce855bc | 2294 | static int |
28ef6c31 JA |
2295 | tcsh_magic_space (count, ignore) |
2296 | int count, ignore; | |
cce855bc | 2297 | { |
28ef6c31 JA |
2298 | int dist_from_end, old_point; |
2299 | ||
2300 | old_point = rl_point; | |
2301 | dist_from_end = rl_end - rl_point; | |
2302 | if (history_expand_line (count, ignore) == 0) | |
cce855bc | 2303 | { |
28ef6c31 JA |
2304 | /* Try a simple heuristic from Stephen Gildea <gildea@intouchsys.com>. |
2305 | This works if all expansions were before rl_point or if no expansions | |
2306 | were performed. */ | |
2307 | rl_point = (old_point == 0) ? old_point : rl_end - dist_from_end; | |
cce855bc JA |
2308 | rl_insert (1, ' '); |
2309 | return (0); | |
2310 | } | |
2311 | else | |
2312 | return (1); | |
726f6388 | 2313 | } |
95732b49 | 2314 | #endif /* BANG_HISTORY */ |
ccc6cda3 | 2315 | |
726f6388 | 2316 | /* History and alias expand the line. */ |
cce855bc | 2317 | static int |
28ef6c31 JA |
2318 | history_and_alias_expand_line (count, ignore) |
2319 | int count, ignore; | |
726f6388 JA |
2320 | { |
2321 | char *new_line; | |
2322 | ||
95732b49 JA |
2323 | new_line = 0; |
2324 | #if defined (BANG_HISTORY) | |
b80f6443 | 2325 | new_line = history_expand_line_internal (rl_line_buffer); |
95732b49 | 2326 | #endif |
726f6388 JA |
2327 | |
2328 | #if defined (ALIAS) | |
2329 | if (new_line) | |
2330 | { | |
2331 | char *alias_line; | |
2332 | ||
2333 | alias_line = alias_expand (new_line); | |
2334 | free (new_line); | |
2335 | new_line = alias_line; | |
2336 | } | |
2337 | #endif /* ALIAS */ | |
2338 | ||
2339 | if (new_line) | |
cce855bc JA |
2340 | { |
2341 | set_up_new_line (new_line); | |
2342 | return (0); | |
2343 | } | |
726f6388 | 2344 | else |
cce855bc JA |
2345 | { |
2346 | cleanup_expansion_error (); | |
2347 | return (1); | |
2348 | } | |
726f6388 JA |
2349 | } |
2350 | ||
2351 | /* History and alias expand the line, then perform the shell word | |
cce855bc JA |
2352 | expansions by calling expand_string. This can't use set_up_new_line() |
2353 | because we want the variable expansions as a separate undo'able | |
2354 | set of operations. */ | |
28ef6c31 JA |
2355 | static int |
2356 | shell_expand_line (count, ignore) | |
2357 | int count, ignore; | |
726f6388 JA |
2358 | { |
2359 | char *new_line; | |
ccc6cda3 | 2360 | WORD_LIST *expanded_string; |
726f6388 | 2361 | |
95732b49 JA |
2362 | new_line = 0; |
2363 | #if defined (BANG_HISTORY) | |
b80f6443 | 2364 | new_line = history_expand_line_internal (rl_line_buffer); |
95732b49 | 2365 | #endif |
726f6388 JA |
2366 | |
2367 | #if defined (ALIAS) | |
2368 | if (new_line) | |
2369 | { | |
2370 | char *alias_line; | |
2371 | ||
2372 | alias_line = alias_expand (new_line); | |
2373 | free (new_line); | |
2374 | new_line = alias_line; | |
2375 | } | |
2376 | #endif /* ALIAS */ | |
2377 | ||
2378 | if (new_line) | |
2379 | { | |
2380 | int old_point = rl_point; | |
2381 | int at_end = rl_point == rl_end; | |
2382 | ||
2383 | /* If the line was history and alias expanded, then make that | |
2384 | be one thing to undo. */ | |
2385 | maybe_make_readline_line (new_line); | |
2386 | free (new_line); | |
2387 | ||
2388 | /* If there is variable expansion to perform, do that as a separate | |
2389 | operation to be undone. */ | |
d166f048 JA |
2390 | new_line = savestring (rl_line_buffer); |
2391 | expanded_string = expand_string (new_line, 0); | |
2392 | FREE (new_line); | |
ccc6cda3 JA |
2393 | if (expanded_string == 0) |
2394 | { | |
f73dda09 | 2395 | new_line = (char *)xmalloc (1); |
ccc6cda3 JA |
2396 | new_line[0] = '\0'; |
2397 | } | |
2398 | else | |
2399 | { | |
2400 | new_line = string_list (expanded_string); | |
2401 | dispose_words (expanded_string); | |
2402 | } | |
726f6388 | 2403 | |
ccc6cda3 JA |
2404 | maybe_make_readline_line (new_line); |
2405 | free (new_line); | |
726f6388 | 2406 | |
ccc6cda3 JA |
2407 | /* Place rl_point where we think it should go. */ |
2408 | if (at_end) | |
2409 | rl_point = rl_end; | |
2410 | else if (old_point < rl_end) | |
2411 | { | |
2412 | rl_point = old_point; | |
2413 | if (!whitespace (rl_line_buffer[rl_point])) | |
b72432fd | 2414 | rl_forward_word (1, 0); |
ccc6cda3 | 2415 | } |
28ef6c31 | 2416 | return 0; |
726f6388 JA |
2417 | } |
2418 | else | |
28ef6c31 JA |
2419 | { |
2420 | cleanup_expansion_error (); | |
2421 | return 1; | |
2422 | } | |
726f6388 JA |
2423 | } |
2424 | ||
ccc6cda3 JA |
2425 | /* If FIGNORE is set, then don't match files with the given suffixes when |
2426 | completing filenames. If only one of the possibilities has an acceptable | |
726f6388 JA |
2427 | suffix, delete the others, else just return and let the completer |
2428 | signal an error. It is called by the completer when real | |
2429 | completions are done on filenames by the completer's internal | |
2430 | function, not for completion lists (M-?) and not on "other" | |
ccc6cda3 | 2431 | completion types, such as hostnames or commands. */ |
726f6388 | 2432 | |
ccc6cda3 | 2433 | static struct ignorevar fignore = |
726f6388 | 2434 | { |
ccc6cda3 JA |
2435 | "FIGNORE", |
2436 | (struct ign *)0, | |
2437 | 0, | |
2438 | (char *)0, | |
f73dda09 | 2439 | (sh_iv_item_func_t *) 0, |
ccc6cda3 | 2440 | }; |
726f6388 | 2441 | |
726f6388 | 2442 | static void |
ccc6cda3 | 2443 | _ignore_completion_names (names, name_func) |
726f6388 | 2444 | char **names; |
f73dda09 | 2445 | sh_ignore_func_t *name_func; |
726f6388 JA |
2446 | { |
2447 | char **newnames; | |
2448 | int idx, nidx; | |
cce855bc JA |
2449 | char **oldnames; |
2450 | int oidx; | |
726f6388 JA |
2451 | |
2452 | /* If there is only one completion, see if it is acceptable. If it is | |
2453 | not, free it up. In any case, short-circuit and return. This is a | |
2454 | special case because names[0] is not the prefix of the list of names | |
2455 | if there is only one completion; it is the completion itself. */ | |
2456 | if (names[1] == (char *)0) | |
2457 | { | |
b80f6443 JA |
2458 | if (force_fignore) |
2459 | if ((*name_func) (names[0]) == 0) | |
2460 | { | |
2461 | free (names[0]); | |
2462 | names[0] = (char *)NULL; | |
2463 | } | |
2464 | ||
726f6388 JA |
2465 | return; |
2466 | } | |
2467 | ||
2468 | /* Allocate space for array to hold list of pointers to matching | |
2469 | filenames. The pointers are copied back to NAMES when done. */ | |
2470 | for (nidx = 1; names[nidx]; nidx++) | |
2471 | ; | |
7117c2d2 | 2472 | newnames = strvec_create (nidx + 1); |
b80f6443 JA |
2473 | |
2474 | if (force_fignore == 0) | |
2475 | { | |
2476 | oldnames = strvec_create (nidx - 1); | |
2477 | oidx = 0; | |
2478 | } | |
726f6388 JA |
2479 | |
2480 | newnames[0] = names[0]; | |
2481 | for (idx = nidx = 1; names[idx]; idx++) | |
2482 | { | |
2483 | if ((*name_func) (names[idx])) | |
2484 | newnames[nidx++] = names[idx]; | |
b80f6443 JA |
2485 | else if (force_fignore == 0) |
2486 | oldnames[oidx++] = names[idx]; | |
726f6388 | 2487 | else |
28ef6c31 | 2488 | free (names[idx]); |
726f6388 JA |
2489 | } |
2490 | ||
2491 | newnames[nidx] = (char *)NULL; | |
2492 | ||
2493 | /* If none are acceptable then let the completer handle it. */ | |
2494 | if (nidx == 1) | |
2495 | { | |
b80f6443 JA |
2496 | if (force_fignore) |
2497 | { | |
2498 | free (names[0]); | |
2499 | names[0] = (char *)NULL; | |
2500 | } | |
2501 | else | |
2502 | free (oldnames); | |
2503 | ||
726f6388 JA |
2504 | free (newnames); |
2505 | return; | |
2506 | } | |
2507 | ||
b80f6443 JA |
2508 | if (force_fignore == 0) |
2509 | { | |
2510 | while (oidx) | |
2511 | free (oldnames[--oidx]); | |
2512 | free (oldnames); | |
2513 | } | |
cce855bc | 2514 | |
726f6388 JA |
2515 | /* If only one is acceptable, copy it to names[0] and return. */ |
2516 | if (nidx == 2) | |
2517 | { | |
2518 | free (names[0]); | |
2519 | names[0] = newnames[1]; | |
2520 | names[1] = (char *)NULL; | |
2521 | free (newnames); | |
2522 | return; | |
2523 | } | |
ccc6cda3 | 2524 | |
726f6388 JA |
2525 | /* Copy the acceptable names back to NAMES, set the new array end, |
2526 | and return. */ | |
2527 | for (nidx = 1; newnames[nidx]; nidx++) | |
2528 | names[nidx] = newnames[nidx]; | |
2529 | names[nidx] = (char *)NULL; | |
ccc6cda3 JA |
2530 | free (newnames); |
2531 | } | |
2532 | ||
2533 | static int | |
2534 | name_is_acceptable (name) | |
f73dda09 | 2535 | const char *name; |
ccc6cda3 JA |
2536 | { |
2537 | struct ign *p; | |
2538 | int nlen; | |
2539 | ||
2540 | for (nlen = strlen (name), p = fignore.ignores; p->val; p++) | |
2541 | { | |
2542 | if (nlen > p->len && p->len > 0 && STREQ (p->val, &name[nlen - p->len])) | |
2543 | return (0); | |
2544 | } | |
2545 | ||
2546 | return (1); | |
726f6388 JA |
2547 | } |
2548 | ||
b72432fd JA |
2549 | #if 0 |
2550 | static int | |
2551 | ignore_dot_names (name) | |
2552 | char *name; | |
2553 | { | |
2554 | return (name[0] != '.'); | |
2555 | } | |
2556 | #endif | |
2557 | ||
28ef6c31 | 2558 | static int |
726f6388 JA |
2559 | filename_completion_ignore (names) |
2560 | char **names; | |
2561 | { | |
b72432fd JA |
2562 | #if 0 |
2563 | if (glob_dot_filenames == 0) | |
2564 | _ignore_completion_names (names, ignore_dot_names); | |
2565 | #endif | |
2566 | ||
ccc6cda3 | 2567 | setup_ignore_patterns (&fignore); |
726f6388 | 2568 | |
ccc6cda3 | 2569 | if (fignore.num_ignores == 0) |
28ef6c31 | 2570 | return 0; |
726f6388 | 2571 | |
ccc6cda3 | 2572 | _ignore_completion_names (names, name_is_acceptable); |
28ef6c31 JA |
2573 | |
2574 | return 0; | |
726f6388 JA |
2575 | } |
2576 | ||
3185942a | 2577 | /* Return 1 if NAME is a directory. NAME undergoes tilde expansion. */ |
726f6388 JA |
2578 | static int |
2579 | test_for_directory (name) | |
f73dda09 | 2580 | const char *name; |
726f6388 | 2581 | { |
726f6388 | 2582 | char *fn; |
3185942a | 2583 | int r; |
726f6388 | 2584 | |
7117c2d2 | 2585 | fn = bash_tilde_expand (name, 0); |
3185942a | 2586 | r = file_isdir (fn); |
726f6388 | 2587 | free (fn); |
3185942a JA |
2588 | |
2589 | return (r); | |
726f6388 JA |
2590 | } |
2591 | ||
2592 | /* Remove files from NAMES, leaving directories. */ | |
28ef6c31 | 2593 | static int |
726f6388 JA |
2594 | bash_ignore_filenames (names) |
2595 | char **names; | |
2596 | { | |
ccc6cda3 | 2597 | _ignore_completion_names (names, test_for_directory); |
28ef6c31 | 2598 | return 0; |
726f6388 JA |
2599 | } |
2600 | ||
bb70624e JA |
2601 | static int |
2602 | return_zero (name) | |
f73dda09 | 2603 | const char *name; |
bb70624e JA |
2604 | { |
2605 | return 0; | |
2606 | } | |
2607 | ||
28ef6c31 | 2608 | static int |
bb70624e JA |
2609 | bash_ignore_everything (names) |
2610 | char **names; | |
2611 | { | |
2612 | _ignore_completion_names (names, return_zero); | |
28ef6c31 | 2613 | return 0; |
bb70624e JA |
2614 | } |
2615 | ||
3185942a JA |
2616 | /* Replace a tilde-prefix in VAL with a `~', assuming the user typed it. VAL |
2617 | is an expanded filename. DIRECTORY_PART is the tilde-prefix portion | |
2618 | of the un-tilde-expanded version of VAL (what the user typed). */ | |
2619 | static char * | |
2620 | restore_tilde (val, directory_part) | |
2621 | char *val, *directory_part; | |
2622 | { | |
2623 | int l, vl, dl2, xl; | |
2624 | char *dh2, *expdir, *ret; | |
2625 | ||
2626 | vl = strlen (val); | |
2627 | ||
2628 | /* We need to duplicate the expansions readline performs on the directory | |
2629 | portion before passing it to our completion function. */ | |
2630 | dh2 = directory_part ? bash_dequote_filename (directory_part, 0) : 0; | |
2631 | bash_directory_expansion (&dh2); | |
2632 | dl2 = strlen (dh2); | |
2633 | ||
2634 | expdir = bash_tilde_expand (directory_part, 0); | |
2635 | xl = strlen (expdir); | |
2636 | free (expdir); | |
2637 | ||
2638 | /* | |
2639 | dh2 = unexpanded but dequoted tilde-prefix | |
2640 | dl2 = length of tilde-prefix | |
2641 | expdir = tilde-expanded tilde-prefix | |
2642 | xl = length of expanded tilde-prefix | |
2643 | l = length of remainder after tilde-prefix | |
2644 | */ | |
2645 | l = (vl - xl) + 1; | |
2646 | ||
2647 | ret = (char *)xmalloc (dl2 + 2 + l); | |
2648 | strcpy (ret, dh2); | |
2649 | strcpy (ret + dl2, val + xl); | |
2650 | ||
2651 | free (dh2); | |
2652 | return (ret); | |
2653 | } | |
2654 | ||
eb873671 JA |
2655 | /* Simulate the expansions that will be performed by |
2656 | rl_filename_completion_function. This must be called with the address of | |
2657 | a pointer to malloc'd memory. */ | |
95732b49 | 2658 | static void |
eb873671 JA |
2659 | bash_directory_expansion (dirname) |
2660 | char **dirname; | |
2661 | { | |
0628567a | 2662 | char *d, *nd; |
eb873671 JA |
2663 | |
2664 | d = savestring (*dirname); | |
2665 | ||
2666 | if (rl_directory_rewrite_hook) | |
2667 | (*rl_directory_rewrite_hook) (&d); | |
495aee44 | 2668 | else if (rl_directory_completion_hook && (*rl_directory_completion_hook) (&d)) |
eb873671 JA |
2669 | { |
2670 | free (*dirname); | |
2671 | *dirname = d; | |
2672 | } | |
0628567a JA |
2673 | else if (rl_completion_found_quote) |
2674 | { | |
2675 | nd = bash_dequote_filename (d, rl_completion_quote_character); | |
2676 | free (*dirname); | |
2677 | free (d); | |
2678 | *dirname = nd; | |
2679 | } | |
eb873671 | 2680 | } |
3185942a | 2681 | |
0001803f CR |
2682 | /* If necessary, rewrite directory entry */ |
2683 | static char * | |
2684 | bash_filename_rewrite_hook (fname, fnlen) | |
2685 | char *fname; | |
2686 | int fnlen; | |
2687 | { | |
2688 | char *conv; | |
2689 | ||
2690 | conv = fnx_fromfs (fname, fnlen); | |
2691 | if (conv != fname) | |
2692 | conv = savestring (conv); | |
2693 | return conv; | |
2694 | } | |
2695 | ||
726f6388 | 2696 | /* Handle symbolic link references and other directory name |
495aee44 CR |
2697 | expansions while hacking completion. This should return 1 if it modifies |
2698 | the DIRNAME argument, 0 otherwise. It should make sure not to modify | |
2699 | DIRNAME if it returns 0. */ | |
726f6388 JA |
2700 | static int |
2701 | bash_directory_completion_hook (dirname) | |
2702 | char **dirname; | |
2703 | { | |
b72432fd | 2704 | char *local_dirname, *new_dirname, *t; |
bb70624e | 2705 | int return_value, should_expand_dirname; |
726f6388 | 2706 | WORD_LIST *wl; |
b80f6443 | 2707 | struct stat sb; |
726f6388 | 2708 | |
bb70624e | 2709 | return_value = should_expand_dirname = 0; |
726f6388 | 2710 | local_dirname = *dirname; |
bb70624e | 2711 | |
0001803f | 2712 | if (mbschr (local_dirname, '$')) |
bb70624e JA |
2713 | should_expand_dirname = 1; |
2714 | else | |
2715 | { | |
0001803f | 2716 | t = mbschr (local_dirname, '`'); |
bb70624e JA |
2717 | if (t && unclosed_pair (local_dirname, strlen (local_dirname), "`") == 0) |
2718 | should_expand_dirname = 1; | |
2719 | } | |
bb70624e | 2720 | |
b80f6443 JA |
2721 | #if defined (HAVE_LSTAT) |
2722 | if (should_expand_dirname && lstat (local_dirname, &sb) == 0) | |
2723 | #else | |
2724 | if (should_expand_dirname && stat (local_dirname, &sb) == 0) | |
2725 | #endif | |
2726 | should_expand_dirname = 0; | |
2727 | ||
bb70624e | 2728 | if (should_expand_dirname) |
726f6388 | 2729 | { |
bb70624e | 2730 | new_dirname = savestring (local_dirname); |
f1be666c | 2731 | wl = expand_prompt_string (new_dirname, 0, W_NOCOMSUB); /* does the right thing */ |
726f6388 JA |
2732 | if (wl) |
2733 | { | |
2734 | *dirname = string_list (wl); | |
2735 | /* Tell the completer to replace the directory name only if we | |
2736 | actually expanded something. */ | |
2737 | return_value = STREQ (local_dirname, *dirname) == 0; | |
2738 | free (local_dirname); | |
b72432fd | 2739 | free (new_dirname); |
726f6388 JA |
2740 | dispose_words (wl); |
2741 | local_dirname = *dirname; | |
2742 | } | |
2743 | else | |
2744 | { | |
b72432fd | 2745 | free (new_dirname); |
726f6388 | 2746 | free (local_dirname); |
f73dda09 | 2747 | *dirname = (char *)xmalloc (1); |
ccc6cda3 | 2748 | **dirname = '\0'; |
726f6388 JA |
2749 | return 1; |
2750 | } | |
2751 | } | |
0628567a JA |
2752 | else |
2753 | { | |
2754 | /* Dequote the filename even if we don't expand it. */ | |
2755 | new_dirname = bash_dequote_filename (local_dirname, rl_completion_quote_character); | |
495aee44 | 2756 | return_value = STREQ (local_dirname, new_dirname) == 0; |
0628567a JA |
2757 | free (local_dirname); |
2758 | local_dirname = *dirname = new_dirname; | |
2759 | } | |
726f6388 | 2760 | |
3185942a | 2761 | if (no_symbolic_links == 0 && (local_dirname[0] != '.' || local_dirname[1])) |
726f6388 JA |
2762 | { |
2763 | char *temp1, *temp2; | |
2764 | int len1, len2; | |
2765 | ||
2766 | t = get_working_directory ("symlink-hook"); | |
2767 | temp1 = make_absolute (local_dirname, t); | |
2768 | free (t); | |
28ef6c31 | 2769 | temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); |
3185942a JA |
2770 | |
2771 | /* Try spelling correction if initial canonicalization fails. */ | |
2772 | if (temp2 == 0 && dircomplete_spelling) | |
2773 | { | |
2774 | temp2 = dirspell (temp1); | |
2775 | if (temp2) | |
2776 | { | |
2777 | free (temp1); | |
2778 | temp1 = temp2; | |
2779 | temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); | |
495aee44 | 2780 | return_value |= temp2 != 0; |
3185942a JA |
2781 | } |
2782 | } | |
ccc6cda3 JA |
2783 | /* If we can't canonicalize, bail. */ |
2784 | if (temp2 == 0) | |
2785 | { | |
2786 | free (temp1); | |
495aee44 | 2787 | return return_value; |
ccc6cda3 | 2788 | } |
726f6388 JA |
2789 | len1 = strlen (temp1); |
2790 | if (temp1[len1 - 1] == '/') | |
28ef6c31 | 2791 | { |
726f6388 | 2792 | len2 = strlen (temp2); |
95732b49 JA |
2793 | if (len2 > 2) /* don't append `/' to `/' or `//' */ |
2794 | { | |
2795 | temp2 = (char *)xrealloc (temp2, len2 + 2); | |
2796 | temp2[len2] = '/'; | |
2797 | temp2[len2 + 1] = '\0'; | |
2798 | } | |
28ef6c31 | 2799 | } |
495aee44 | 2800 | return_value |= STREQ (local_dirname, temp2) == 0; |
726f6388 JA |
2801 | free (local_dirname); |
2802 | *dirname = temp2; | |
2803 | free (temp1); | |
2804 | } | |
495aee44 | 2805 | |
726f6388 JA |
2806 | return (return_value); |
2807 | } | |
2808 | ||
726f6388 | 2809 | static char **history_completion_array = (char **)NULL; |
ccc6cda3 JA |
2810 | static int harry_size; |
2811 | static int harry_len; | |
726f6388 JA |
2812 | |
2813 | static void | |
2814 | build_history_completion_array () | |
2815 | { | |
ccc6cda3 JA |
2816 | register int i, j; |
2817 | HIST_ENTRY **hlist; | |
2818 | char **tokens; | |
726f6388 JA |
2819 | |
2820 | /* First, clear out the current dynamic history completion list. */ | |
2821 | if (harry_size) | |
2822 | { | |
7117c2d2 | 2823 | strvec_dispose (history_completion_array); |
726f6388 JA |
2824 | history_completion_array = (char **)NULL; |
2825 | harry_size = 0; | |
2826 | harry_len = 0; | |
2827 | } | |
2828 | ||
2829 | /* Next, grovel each line of history, making each shell-sized token | |
2830 | a separate entry in the history_completion_array. */ | |
ccc6cda3 | 2831 | hlist = history_list (); |
726f6388 | 2832 | |
ccc6cda3 JA |
2833 | if (hlist) |
2834 | { | |
2835 | for (i = 0; hlist[i]; i++) | |
0001803f CR |
2836 | ; |
2837 | for ( --i; i >= 0; i--) | |
ccc6cda3 JA |
2838 | { |
2839 | /* Separate each token, and place into an array. */ | |
2840 | tokens = history_tokenize (hlist[i]->line); | |
726f6388 | 2841 | |
ccc6cda3 JA |
2842 | for (j = 0; tokens && tokens[j]; j++) |
2843 | { | |
2844 | if (harry_len + 2 > harry_size) | |
7117c2d2 | 2845 | history_completion_array = strvec_resize (history_completion_array, harry_size += 10); |
726f6388 | 2846 | |
ccc6cda3 JA |
2847 | history_completion_array[harry_len++] = tokens[j]; |
2848 | history_completion_array[harry_len] = (char *)NULL; | |
2849 | } | |
2850 | free (tokens); | |
2851 | } | |
726f6388 | 2852 | |
ccc6cda3 | 2853 | /* Sort the complete list of tokens. */ |
0001803f CR |
2854 | if (dabbrev_expand_active == 0) |
2855 | qsort (history_completion_array, harry_len, sizeof (char *), (QSFUNC *)strvec_strcmp); | |
ccc6cda3 | 2856 | } |
726f6388 JA |
2857 | } |
2858 | ||
2859 | static char * | |
2860 | history_completion_generator (hint_text, state) | |
f73dda09 | 2861 | const char *hint_text; |
726f6388 JA |
2862 | int state; |
2863 | { | |
ccc6cda3 | 2864 | static int local_index, len; |
f73dda09 | 2865 | static const char *text; |
726f6388 JA |
2866 | |
2867 | /* If this is the first call to the generator, then initialize the | |
2868 | list of strings to complete over. */ | |
ccc6cda3 | 2869 | if (state == 0) |
726f6388 | 2870 | { |
0001803f CR |
2871 | if (dabbrev_expand_active) /* This is kind of messy */ |
2872 | rl_completion_suppress_append = 1; | |
726f6388 JA |
2873 | local_index = 0; |
2874 | build_history_completion_array (); | |
2875 | text = hint_text; | |
2876 | len = strlen (text); | |
2877 | } | |
2878 | ||
2879 | while (history_completion_array && history_completion_array[local_index]) | |
2880 | { | |
2881 | if (strncmp (text, history_completion_array[local_index++], len) == 0) | |
2882 | return (savestring (history_completion_array[local_index - 1])); | |
2883 | } | |
2884 | return ((char *)NULL); | |
2885 | } | |
2886 | ||
28ef6c31 | 2887 | static int |
726f6388 JA |
2888 | dynamic_complete_history (count, key) |
2889 | int count, key; | |
2890 | { | |
f73dda09 | 2891 | int r; |
28ef6c31 JA |
2892 | rl_compentry_func_t *orig_func; |
2893 | rl_completion_func_t *orig_attempt_func; | |
495aee44 | 2894 | rl_compignore_func_t *orig_ignore_func; |
726f6388 JA |
2895 | |
2896 | orig_func = rl_completion_entry_function; | |
2897 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 2898 | orig_ignore_func = rl_ignore_some_completions_function; |
3185942a | 2899 | |
28ef6c31 JA |
2900 | rl_completion_entry_function = history_completion_generator; |
2901 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
495aee44 | 2902 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 | 2903 | |
7117c2d2 | 2904 | /* XXX - use rl_completion_mode here? */ |
28ef6c31 | 2905 | if (rl_last_func == dynamic_complete_history) |
f73dda09 | 2906 | r = rl_complete_internal ('?'); |
726f6388 | 2907 | else |
f73dda09 | 2908 | r = rl_complete_internal (TAB); |
726f6388 JA |
2909 | |
2910 | rl_completion_entry_function = orig_func; | |
2911 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 CR |
2912 | rl_ignore_some_completions_function = orig_ignore_func; |
2913 | ||
f73dda09 | 2914 | return r; |
726f6388 JA |
2915 | } |
2916 | ||
3185942a JA |
2917 | static int |
2918 | bash_dabbrev_expand (count, key) | |
2919 | int count, key; | |
2920 | { | |
0001803f | 2921 | int r, orig_suppress, orig_sort; |
3185942a JA |
2922 | rl_compentry_func_t *orig_func; |
2923 | rl_completion_func_t *orig_attempt_func; | |
495aee44 | 2924 | rl_compignore_func_t *orig_ignore_func; |
3185942a JA |
2925 | |
2926 | orig_func = rl_menu_completion_entry_function; | |
2927 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 2928 | orig_ignore_func = rl_ignore_some_completions_function; |
0001803f CR |
2929 | orig_suppress = rl_completion_suppress_append; |
2930 | orig_sort = rl_sort_completion_matches; | |
3185942a JA |
2931 | |
2932 | rl_menu_completion_entry_function = history_completion_generator; | |
2933 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
495aee44 | 2934 | rl_ignore_some_completions_function = filename_completion_ignore; |
3185942a | 2935 | rl_filename_completion_desired = 0; |
0001803f CR |
2936 | rl_completion_suppress_append = 1; |
2937 | rl_sort_completion_matches = 0; | |
3185942a JA |
2938 | |
2939 | /* XXX - use rl_completion_mode here? */ | |
0001803f | 2940 | dabbrev_expand_active = 1; |
3185942a JA |
2941 | if (rl_last_func == bash_dabbrev_expand) |
2942 | rl_last_func = rl_menu_complete; | |
2943 | r = rl_menu_complete (count, key); | |
0001803f | 2944 | dabbrev_expand_active = 0; |
3185942a JA |
2945 | |
2946 | rl_last_func = bash_dabbrev_expand; | |
2947 | rl_menu_completion_entry_function = orig_func; | |
2948 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 | 2949 | rl_ignore_some_completions_function = orig_ignore_func; |
0001803f CR |
2950 | rl_completion_suppress_append = orig_suppress; |
2951 | rl_sort_completion_matches = orig_sort; | |
3185942a JA |
2952 | |
2953 | return r; | |
2954 | } | |
2955 | ||
726f6388 | 2956 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) |
28ef6c31 | 2957 | static int |
726f6388 JA |
2958 | bash_complete_username (ignore, ignore2) |
2959 | int ignore, ignore2; | |
2960 | { | |
7117c2d2 | 2961 | return bash_complete_username_internal (rl_completion_mode (bash_complete_username)); |
726f6388 JA |
2962 | } |
2963 | ||
28ef6c31 | 2964 | static int |
726f6388 JA |
2965 | bash_possible_username_completions (ignore, ignore2) |
2966 | int ignore, ignore2; | |
2967 | { | |
28ef6c31 | 2968 | return bash_complete_username_internal ('?'); |
726f6388 JA |
2969 | } |
2970 | ||
28ef6c31 | 2971 | static int |
726f6388 JA |
2972 | bash_complete_username_internal (what_to_do) |
2973 | int what_to_do; | |
2974 | { | |
28ef6c31 | 2975 | return bash_specific_completion (what_to_do, rl_username_completion_function); |
726f6388 JA |
2976 | } |
2977 | ||
28ef6c31 | 2978 | static int |
726f6388 JA |
2979 | bash_complete_filename (ignore, ignore2) |
2980 | int ignore, ignore2; | |
2981 | { | |
7117c2d2 | 2982 | return bash_complete_filename_internal (rl_completion_mode (bash_complete_filename)); |
726f6388 JA |
2983 | } |
2984 | ||
28ef6c31 | 2985 | static int |
726f6388 JA |
2986 | bash_possible_filename_completions (ignore, ignore2) |
2987 | int ignore, ignore2; | |
2988 | { | |
28ef6c31 | 2989 | return bash_complete_filename_internal ('?'); |
726f6388 JA |
2990 | } |
2991 | ||
28ef6c31 | 2992 | static int |
726f6388 JA |
2993 | bash_complete_filename_internal (what_to_do) |
2994 | int what_to_do; | |
2995 | { | |
28ef6c31 JA |
2996 | rl_compentry_func_t *orig_func; |
2997 | rl_completion_func_t *orig_attempt_func; | |
2998 | rl_icppfunc_t *orig_dir_func; | |
495aee44 | 2999 | rl_compignore_func_t *orig_ignore_func; |
b80f6443 | 3000 | /*const*/ char *orig_rl_completer_word_break_characters; |
28ef6c31 | 3001 | int r; |
726f6388 JA |
3002 | |
3003 | orig_func = rl_completion_entry_function; | |
3004 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 CR |
3005 | orig_dir_func = rl_directory_rewrite_hook; |
3006 | orig_ignore_func = rl_ignore_some_completions_function; | |
726f6388 | 3007 | orig_rl_completer_word_break_characters = rl_completer_word_break_characters; |
28ef6c31 JA |
3008 | rl_completion_entry_function = rl_filename_completion_function; |
3009 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
495aee44 CR |
3010 | rl_directory_rewrite_hook = (rl_icppfunc_t *)NULL; |
3011 | rl_ignore_some_completions_function = filename_completion_ignore; | |
726f6388 JA |
3012 | rl_completer_word_break_characters = " \t\n\"\'"; |
3013 | ||
28ef6c31 | 3014 | r = rl_complete_internal (what_to_do); |
726f6388 JA |
3015 | |
3016 | rl_completion_entry_function = orig_func; | |
3017 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 CR |
3018 | rl_directory_rewrite_hook = orig_dir_func; |
3019 | rl_ignore_some_completions_function = orig_ignore_func; | |
726f6388 | 3020 | rl_completer_word_break_characters = orig_rl_completer_word_break_characters; |
28ef6c31 JA |
3021 | |
3022 | return r; | |
726f6388 JA |
3023 | } |
3024 | ||
28ef6c31 | 3025 | static int |
726f6388 JA |
3026 | bash_complete_hostname (ignore, ignore2) |
3027 | int ignore, ignore2; | |
3028 | { | |
7117c2d2 | 3029 | return bash_complete_hostname_internal (rl_completion_mode (bash_complete_hostname)); |
726f6388 JA |
3030 | } |
3031 | ||
28ef6c31 | 3032 | static int |
726f6388 JA |
3033 | bash_possible_hostname_completions (ignore, ignore2) |
3034 | int ignore, ignore2; | |
3035 | { | |
28ef6c31 | 3036 | return bash_complete_hostname_internal ('?'); |
726f6388 JA |
3037 | } |
3038 | ||
28ef6c31 | 3039 | static int |
726f6388 JA |
3040 | bash_complete_variable (ignore, ignore2) |
3041 | int ignore, ignore2; | |
3042 | { | |
7117c2d2 | 3043 | return bash_complete_variable_internal (rl_completion_mode (bash_complete_variable)); |
726f6388 JA |
3044 | } |
3045 | ||
28ef6c31 | 3046 | static int |
726f6388 JA |
3047 | bash_possible_variable_completions (ignore, ignore2) |
3048 | int ignore, ignore2; | |
3049 | { | |
28ef6c31 | 3050 | return bash_complete_variable_internal ('?'); |
726f6388 JA |
3051 | } |
3052 | ||
28ef6c31 | 3053 | static int |
726f6388 JA |
3054 | bash_complete_command (ignore, ignore2) |
3055 | int ignore, ignore2; | |
3056 | { | |
7117c2d2 | 3057 | return bash_complete_command_internal (rl_completion_mode (bash_complete_command)); |
726f6388 JA |
3058 | } |
3059 | ||
28ef6c31 | 3060 | static int |
726f6388 JA |
3061 | bash_possible_command_completions (ignore, ignore2) |
3062 | int ignore, ignore2; | |
3063 | { | |
28ef6c31 | 3064 | return bash_complete_command_internal ('?'); |
726f6388 JA |
3065 | } |
3066 | ||
28ef6c31 | 3067 | static int |
726f6388 JA |
3068 | bash_complete_hostname_internal (what_to_do) |
3069 | int what_to_do; | |
3070 | { | |
28ef6c31 | 3071 | return bash_specific_completion (what_to_do, hostname_completion_function); |
726f6388 JA |
3072 | } |
3073 | ||
28ef6c31 | 3074 | static int |
726f6388 JA |
3075 | bash_complete_variable_internal (what_to_do) |
3076 | int what_to_do; | |
3077 | { | |
28ef6c31 | 3078 | return bash_specific_completion (what_to_do, variable_completion_function); |
726f6388 JA |
3079 | } |
3080 | ||
28ef6c31 | 3081 | static int |
726f6388 JA |
3082 | bash_complete_command_internal (what_to_do) |
3083 | int what_to_do; | |
3084 | { | |
28ef6c31 | 3085 | return bash_specific_completion (what_to_do, command_word_completion_function); |
726f6388 JA |
3086 | } |
3087 | ||
7117c2d2 JA |
3088 | static char *globtext; |
3089 | static char *globorig; | |
3090 | ||
ccc6cda3 JA |
3091 | static char * |
3092 | glob_complete_word (text, state) | |
28ef6c31 | 3093 | const char *text; |
ccc6cda3 JA |
3094 | int state; |
3095 | { | |
3096 | static char **matches = (char **)NULL; | |
3097 | static int ind; | |
7117c2d2 | 3098 | int glen; |
eb873671 | 3099 | char *ret, *ttext; |
ccc6cda3 JA |
3100 | |
3101 | if (state == 0) | |
3102 | { | |
e8ce775d | 3103 | rl_filename_completion_desired = 1; |
7117c2d2 JA |
3104 | FREE (matches); |
3105 | if (globorig != globtext) | |
3106 | FREE (globorig); | |
3107 | FREE (globtext); | |
3108 | ||
eb873671 JA |
3109 | ttext = bash_tilde_expand (text, 0); |
3110 | ||
7117c2d2 JA |
3111 | if (rl_explicit_arg) |
3112 | { | |
eb873671 JA |
3113 | globorig = savestring (ttext); |
3114 | glen = strlen (ttext); | |
7117c2d2 | 3115 | globtext = (char *)xmalloc (glen + 2); |
eb873671 | 3116 | strcpy (globtext, ttext); |
7117c2d2 JA |
3117 | globtext[glen] = '*'; |
3118 | globtext[glen+1] = '\0'; | |
3119 | } | |
3120 | else | |
eb873671 JA |
3121 | globtext = globorig = savestring (ttext); |
3122 | ||
3123 | if (ttext != text) | |
3124 | free (ttext); | |
7117c2d2 JA |
3125 | |
3126 | matches = shell_glob_filename (globtext); | |
ccc6cda3 | 3127 | if (GLOB_FAILED (matches)) |
28ef6c31 | 3128 | matches = (char **)NULL; |
ccc6cda3 JA |
3129 | ind = 0; |
3130 | } | |
3131 | ||
3132 | ret = matches ? matches[ind] : (char *)NULL; | |
3133 | ind++; | |
3134 | return ret; | |
3135 | } | |
3136 | ||
28ef6c31 | 3137 | static int |
ccc6cda3 JA |
3138 | bash_glob_completion_internal (what_to_do) |
3139 | int what_to_do; | |
3140 | { | |
28ef6c31 | 3141 | return bash_specific_completion (what_to_do, glob_complete_word); |
ccc6cda3 JA |
3142 | } |
3143 | ||
7117c2d2 JA |
3144 | /* A special quoting function so we don't end up quoting globbing characters |
3145 | in the word if there are no matches or multiple matches. */ | |
3146 | static char * | |
3147 | bash_glob_quote_filename (s, rtype, qcp) | |
3148 | char *s; | |
3149 | int rtype; | |
3150 | char *qcp; | |
3151 | { | |
3152 | if (globorig && qcp && *qcp == '\0' && STREQ (s, globorig)) | |
3153 | return (savestring (s)); | |
3154 | else | |
3155 | return (bash_quote_filename (s, rtype, qcp)); | |
3156 | } | |
3157 | ||
3158 | static int | |
3159 | bash_glob_complete_word (count, key) | |
3160 | int count, key; | |
3161 | { | |
3162 | int r; | |
3163 | rl_quote_func_t *orig_quoting_function; | |
3164 | ||
b80f6443 JA |
3165 | if (rl_editing_mode == EMACS_EDITING_MODE) |
3166 | rl_explicit_arg = 1; /* force `*' append */ | |
7117c2d2 JA |
3167 | orig_quoting_function = rl_filename_quoting_function; |
3168 | rl_filename_quoting_function = bash_glob_quote_filename; | |
3169 | ||
3170 | r = bash_glob_completion_internal (rl_completion_mode (bash_glob_complete_word)); | |
3171 | ||
3172 | rl_filename_quoting_function = orig_quoting_function; | |
3173 | return r; | |
3174 | } | |
3175 | ||
28ef6c31 | 3176 | static int |
ccc6cda3 JA |
3177 | bash_glob_expand_word (count, key) |
3178 | int count, key; | |
3179 | { | |
28ef6c31 | 3180 | return bash_glob_completion_internal ('*'); |
ccc6cda3 JA |
3181 | } |
3182 | ||
28ef6c31 | 3183 | static int |
ccc6cda3 JA |
3184 | bash_glob_list_expansions (count, key) |
3185 | int count, key; | |
3186 | { | |
28ef6c31 | 3187 | return bash_glob_completion_internal ('?'); |
ccc6cda3 JA |
3188 | } |
3189 | ||
28ef6c31 | 3190 | static int |
726f6388 JA |
3191 | bash_specific_completion (what_to_do, generator) |
3192 | int what_to_do; | |
28ef6c31 | 3193 | rl_compentry_func_t *generator; |
726f6388 | 3194 | { |
28ef6c31 JA |
3195 | rl_compentry_func_t *orig_func; |
3196 | rl_completion_func_t *orig_attempt_func; | |
495aee44 | 3197 | rl_compignore_func_t *orig_ignore_func; |
28ef6c31 | 3198 | int r; |
726f6388 JA |
3199 | |
3200 | orig_func = rl_completion_entry_function; | |
3201 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3202 | orig_ignore_func = rl_ignore_some_completions_function; |
726f6388 | 3203 | rl_completion_entry_function = generator; |
28ef6c31 | 3204 | rl_attempted_completion_function = NULL; |
495aee44 | 3205 | rl_ignore_some_completions_function = orig_ignore_func; |
726f6388 | 3206 | |
28ef6c31 | 3207 | r = rl_complete_internal (what_to_do); |
726f6388 JA |
3208 | |
3209 | rl_completion_entry_function = orig_func; | |
3210 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 | 3211 | rl_ignore_some_completions_function = orig_ignore_func; |
28ef6c31 JA |
3212 | |
3213 | return r; | |
726f6388 JA |
3214 | } |
3215 | ||
3216 | #endif /* SPECIFIC_COMPLETION_FUNCTIONS */ | |
ccc6cda3 | 3217 | |
b80f6443 JA |
3218 | #if defined (VI_MODE) |
3219 | /* Completion, from vi mode's point of view. This is a modified version of | |
3220 | rl_vi_complete which uses the bash globbing code to implement what POSIX | |
3221 | specifies, which is to append a `*' and attempt filename generation (which | |
3222 | has the side effect of expanding any globbing characters in the word). */ | |
3223 | static int | |
3224 | bash_vi_complete (count, key) | |
3225 | int count, key; | |
3226 | { | |
3227 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
3228 | int p, r; | |
3229 | char *t; | |
3230 | ||
3231 | if ((rl_point < rl_end) && (!whitespace (rl_line_buffer[rl_point]))) | |
3232 | { | |
3233 | if (!whitespace (rl_line_buffer[rl_point + 1])) | |
3234 | rl_vi_end_word (1, 'E'); | |
3235 | rl_point++; | |
3236 | } | |
3237 | ||
3238 | /* Find boundaries of current word, according to vi definition of a | |
3239 | `bigword'. */ | |
3240 | t = 0; | |
3241 | if (rl_point > 0) | |
3242 | { | |
3243 | p = rl_point; | |
3244 | rl_vi_bWord (1, 'B'); | |
3245 | r = rl_point; | |
3246 | rl_point = p; | |
3247 | p = r; | |
3248 | ||
3249 | t = substring (rl_line_buffer, p, rl_point); | |
3250 | } | |
3251 | ||
3252 | if (t && glob_pattern_p (t) == 0) | |
3253 | rl_explicit_arg = 1; /* XXX - force glob_complete_word to append `*' */ | |
3254 | FREE (t); | |
3255 | ||
3256 | if (key == '*') /* Expansion and replacement. */ | |
3257 | r = bash_glob_expand_word (count, key); | |
3258 | else if (key == '=') /* List possible completions. */ | |
3259 | r = bash_glob_list_expansions (count, key); | |
3260 | else if (key == '\\') /* Standard completion */ | |
3261 | r = bash_glob_complete_word (count, key); | |
3262 | else | |
3263 | r = rl_complete (0, key); | |
3264 | ||
3265 | if (key == '*' || key == '\\') | |
3266 | rl_vi_start_inserting (key, 1, 1); | |
3267 | ||
3268 | return (r); | |
3269 | #else | |
3270 | return rl_vi_complete (count, key); | |
3271 | #endif /* !SPECIFIC_COMPLETION_FUNCTIONS */ | |
3272 | } | |
3273 | #endif /* VI_MODE */ | |
3274 | ||
ccc6cda3 | 3275 | /* Filename quoting for completion. */ |
bb70624e JA |
3276 | /* A function to strip unquoted quote characters (single quotes, double |
3277 | quotes, and backslashes). It allows single quotes to appear | |
3278 | within double quotes, and vice versa. It should be smarter. */ | |
ccc6cda3 JA |
3279 | static char * |
3280 | bash_dequote_filename (text, quote_char) | |
3281 | char *text; | |
28ef6c31 | 3282 | int quote_char; |
ccc6cda3 JA |
3283 | { |
3284 | char *ret, *p, *r; | |
3285 | int l, quoted; | |
3286 | ||
3287 | l = strlen (text); | |
f73dda09 | 3288 | ret = (char *)xmalloc (l + 1); |
ccc6cda3 JA |
3289 | for (quoted = quote_char, p = text, r = ret; p && *p; p++) |
3290 | { | |
3185942a | 3291 | /* Allow backslash-escaped characters to pass through unscathed. */ |
ccc6cda3 JA |
3292 | if (*p == '\\') |
3293 | { | |
3185942a JA |
3294 | /* Backslashes are preserved within single quotes. */ |
3295 | if (quoted == '\'') | |
3296 | *r++ = *p; | |
3297 | /* Backslashes are preserved within double quotes unless the | |
3298 | character is one that is defined to be escaped */ | |
3299 | else if (quoted == '"' && ((sh_syntaxtab[p[1]] & CBSDQUOTE) == 0)) | |
3300 | *r++ = *p; | |
3301 | ||
ccc6cda3 JA |
3302 | *r++ = *++p; |
3303 | if (*p == '\0') | |
0001803f | 3304 | return ret; /* XXX - was break; */ |
ccc6cda3 JA |
3305 | continue; |
3306 | } | |
3307 | /* Close quote. */ | |
3308 | if (quoted && *p == quoted) | |
28ef6c31 JA |
3309 | { |
3310 | quoted = 0; | |
3311 | continue; | |
3312 | } | |
ccc6cda3 JA |
3313 | /* Open quote. */ |
3314 | if (quoted == 0 && (*p == '\'' || *p == '"')) | |
28ef6c31 JA |
3315 | { |
3316 | quoted = *p; | |
3317 | continue; | |
3318 | } | |
ccc6cda3 JA |
3319 | *r++ = *p; |
3320 | } | |
3321 | *r = '\0'; | |
3322 | return ret; | |
3323 | } | |
3324 | ||
d166f048 JA |
3325 | /* Quote characters that the readline completion code would treat as |
3326 | word break characters with backslashes. Pass backslash-quoted | |
3327 | characters through without examination. */ | |
3328 | static char * | |
3329 | quote_word_break_chars (text) | |
3330 | char *text; | |
3331 | { | |
3332 | char *ret, *r, *s; | |
3333 | int l; | |
3334 | ||
3335 | l = strlen (text); | |
f73dda09 | 3336 | ret = (char *)xmalloc ((2 * l) + 1); |
d166f048 JA |
3337 | for (s = text, r = ret; *s; s++) |
3338 | { | |
3339 | /* Pass backslash-quoted characters through, including the backslash. */ | |
3340 | if (*s == '\\') | |
3341 | { | |
3342 | *r++ = '\\'; | |
3343 | *r++ = *++s; | |
3344 | if (*s == '\0') | |
3345 | break; | |
3346 | continue; | |
3347 | } | |
3348 | /* OK, we have an unquoted character. Check its presence in | |
3349 | rl_completer_word_break_characters. */ | |
0001803f | 3350 | if (mbschr (rl_completer_word_break_characters, *s)) |
28ef6c31 | 3351 | *r++ = '\\'; |
3185942a JA |
3352 | /* XXX -- check for standalone tildes here and backslash-quote them */ |
3353 | if (s == text && *s == '~' && file_exists (text)) | |
3354 | *r++ = '\\'; | |
d166f048 JA |
3355 | *r++ = *s; |
3356 | } | |
3357 | *r = '\0'; | |
3358 | return ret; | |
3359 | } | |
3360 | ||
3361 | /* Quote a filename using double quotes, single quotes, or backslashes | |
3362 | depending on the value of completion_quoting_style. If we're | |
3363 | completing using backslashes, we need to quote some additional | |
3364 | characters (those that readline treats as word breaks), so we call | |
7117c2d2 JA |
3365 | quote_word_break_chars on the result. This returns newly-allocated |
3366 | memory. */ | |
ccc6cda3 JA |
3367 | static char * |
3368 | bash_quote_filename (s, rtype, qcp) | |
3369 | char *s; | |
3370 | int rtype; | |
3371 | char *qcp; | |
3372 | { | |
3373 | char *rtext, *mtext, *ret; | |
3374 | int rlen, cs; | |
3375 | ||
3376 | rtext = (char *)NULL; | |
3377 | ||
3378 | /* If RTYPE == MULT_MATCH, it means that there is | |
3379 | more than one match. In this case, we do not add | |
3380 | the closing quote or attempt to perform tilde | |
3381 | expansion. If RTYPE == SINGLE_MATCH, we try | |
3382 | to perform tilde expansion, because single and double | |
3383 | quotes inhibit tilde expansion by the shell. */ | |
3384 | ||
ccc6cda3 JA |
3385 | cs = completion_quoting_style; |
3386 | /* Might need to modify the default completion style based on *qcp, | |
bb70624e JA |
3387 | since it's set to any user-provided opening quote. We also change |
3388 | to single-quoting if there is no user-provided opening quote and | |
3389 | the word being completed contains newlines, since those are not | |
3390 | quoted correctly using backslashes (a backslash-newline pair is | |
3391 | special to the shell parser). */ | |
0001803f | 3392 | if (*qcp == '\0' && cs == COMPLETE_BSQUOTE && mbschr (s, '\n')) |
bb70624e JA |
3393 | cs = COMPLETE_SQUOTE; |
3394 | else if (*qcp == '"') | |
ccc6cda3 JA |
3395 | cs = COMPLETE_DQUOTE; |
3396 | else if (*qcp == '\'') | |
3397 | cs = COMPLETE_SQUOTE; | |
3398 | #if defined (BANG_HISTORY) | |
3399 | else if (*qcp == '\0' && history_expansion && cs == COMPLETE_DQUOTE && | |
0001803f | 3400 | history_expansion_inhibited == 0 && mbschr (s, '!')) |
ccc6cda3 | 3401 | cs = COMPLETE_BSQUOTE; |
d166f048 JA |
3402 | |
3403 | if (*qcp == '"' && history_expansion && cs == COMPLETE_DQUOTE && | |
0001803f | 3404 | history_expansion_inhibited == 0 && mbschr (s, '!')) |
d166f048 JA |
3405 | { |
3406 | cs = COMPLETE_BSQUOTE; | |
3407 | *qcp = '\0'; | |
3408 | } | |
ccc6cda3 JA |
3409 | #endif |
3410 | ||
95732b49 JA |
3411 | /* Don't tilde-expand backslash-quoted filenames, since only single and |
3412 | double quotes inhibit tilde expansion. */ | |
3413 | mtext = s; | |
3414 | if (mtext[0] == '~' && rtype == SINGLE_MATCH && cs != COMPLETE_BSQUOTE) | |
3415 | mtext = bash_tilde_expand (s, 0); | |
3416 | ||
ccc6cda3 JA |
3417 | switch (cs) |
3418 | { | |
3419 | case COMPLETE_DQUOTE: | |
28ef6c31 | 3420 | rtext = sh_double_quote (mtext); |
ccc6cda3 JA |
3421 | break; |
3422 | case COMPLETE_SQUOTE: | |
28ef6c31 | 3423 | rtext = sh_single_quote (mtext); |
ccc6cda3 JA |
3424 | break; |
3425 | case COMPLETE_BSQUOTE: | |
28ef6c31 | 3426 | rtext = sh_backslash_quote (mtext); |
ccc6cda3 JA |
3427 | break; |
3428 | } | |
3429 | ||
3430 | if (mtext != s) | |
3431 | free (mtext); | |
3432 | ||
d166f048 JA |
3433 | /* We may need to quote additional characters: those that readline treats |
3434 | as word breaks that are not quoted by backslash_quote. */ | |
3435 | if (rtext && cs == COMPLETE_BSQUOTE) | |
3436 | { | |
3437 | mtext = quote_word_break_chars (rtext); | |
3438 | free (rtext); | |
3439 | rtext = mtext; | |
3440 | } | |
3441 | ||
ccc6cda3 JA |
3442 | /* Leave the opening quote intact. The readline completion code takes |
3443 | care of avoiding doubled opening quotes. */ | |
3444 | rlen = strlen (rtext); | |
f73dda09 | 3445 | ret = (char *)xmalloc (rlen + 1); |
ccc6cda3 JA |
3446 | strcpy (ret, rtext); |
3447 | ||
3448 | /* If there are multiple matches, cut off the closing quote. */ | |
3449 | if (rtype == MULT_MATCH && cs != COMPLETE_BSQUOTE) | |
3450 | ret[rlen - 1] = '\0'; | |
3451 | free (rtext); | |
3452 | return ret; | |
3453 | } | |
3454 | ||
bb70624e JA |
3455 | /* Support for binding readline key sequences to Unix commands. */ |
3456 | static Keymap cmd_xmap; | |
3457 | ||
0001803f CR |
3458 | static int |
3459 | putx(c) | |
3460 | int c; | |
3461 | { | |
495aee44 CR |
3462 | int x; |
3463 | ||
3464 | x = putc (c, rl_outstream); | |
3465 | return (x); | |
0001803f CR |
3466 | } |
3467 | ||
bb70624e JA |
3468 | static int |
3469 | bash_execute_unix_command (count, key) | |
3470 | int count; /* ignored */ | |
3471 | int key; | |
3472 | { | |
3473 | Keymap ckmap; /* current keymap */ | |
3474 | Keymap xkmap; /* unix command executing keymap */ | |
0001803f | 3475 | register int i, r; |
3185942a | 3476 | intmax_t mi; |
b80f6443 | 3477 | sh_parser_state_t ps; |
0001803f | 3478 | char *cmd, *value, *l, *l1, *ce; |
3185942a JA |
3479 | SHELL_VAR *v; |
3480 | char ibuf[INT_STRLEN_BOUND(int) + 1]; | |
bb70624e JA |
3481 | |
3482 | /* First, we need to find the right command to execute. This is tricky, | |
3483 | because we might have already indirected into another keymap. */ | |
3484 | ckmap = rl_get_keymap (); | |
3485 | if (ckmap != rl_executing_keymap) | |
3486 | { | |
3487 | /* bogus. we have to search. only handle one level of indirection. */ | |
3488 | for (i = 0; i < KEYMAP_SIZE; i++) | |
3489 | { | |
3490 | if (ckmap[i].type == ISKMAP && (Keymap)ckmap[i].function == rl_executing_keymap) | |
3491 | break; | |
3492 | } | |
3493 | if (i < KEYMAP_SIZE) | |
28ef6c31 | 3494 | xkmap = (Keymap)cmd_xmap[i].function; |
bb70624e JA |
3495 | else |
3496 | { | |
28ef6c31 | 3497 | rl_crlf (); |
b80f6443 | 3498 | internal_error (_("bash_execute_unix_command: cannot find keymap for command")); |
28ef6c31 JA |
3499 | rl_forced_update_display (); |
3500 | return 1; | |
bb70624e JA |
3501 | } |
3502 | } | |
3503 | else | |
3504 | xkmap = cmd_xmap; | |
3505 | ||
3506 | cmd = (char *)xkmap[key].function; | |
3507 | ||
3508 | if (cmd == 0) | |
3509 | { | |
28ef6c31 | 3510 | rl_ding (); |
bb70624e JA |
3511 | return 1; |
3512 | } | |
3513 | ||
0001803f CR |
3514 | ce = rl_get_termcap ("ce"); |
3515 | if (ce) /* clear current line */ | |
3516 | { | |
3517 | fprintf (rl_outstream, "\r"); | |
3518 | tputs (ce, 1, putx); | |
3519 | fflush (rl_outstream); | |
3520 | } | |
3521 | else | |
3522 | rl_crlf (); /* move to a new line */ | |
bb70624e | 3523 | |
3185942a JA |
3524 | v = bind_variable ("READLINE_LINE", rl_line_buffer, 0); |
3525 | if (v) | |
3526 | VSETATTR (v, att_exported); | |
0001803f | 3527 | l = v ? value_cell (v) : 0; |
3185942a JA |
3528 | value = inttostr (rl_point, ibuf, sizeof (ibuf)); |
3529 | v = bind_int_variable ("READLINE_POINT", value); | |
3530 | if (v) | |
3531 | VSETATTR (v, att_exported); | |
3532 | array_needs_making = 1; | |
3533 | ||
b80f6443 | 3534 | save_parser_state (&ps); |
0001803f | 3535 | r = parse_and_execute (cmd, "bash_execute_unix_command", SEVAL_NOHIST|SEVAL_NOFREE); |
3185942a | 3536 | restore_parser_state (&ps); |
7117c2d2 | 3537 | |
3185942a | 3538 | v = find_variable ("READLINE_LINE"); |
0001803f CR |
3539 | l1 = v ? value_cell (v) : 0; |
3540 | if (l1 != l) | |
3185942a JA |
3541 | maybe_make_readline_line (value_cell (v)); |
3542 | v = find_variable ("READLINE_POINT"); | |
3543 | if (v && legal_number (value_cell (v), &mi)) | |
3544 | { | |
3545 | i = mi; | |
89a92869 | 3546 | if (i != rl_point) |
3185942a JA |
3547 | { |
3548 | rl_point = i; | |
3549 | if (rl_point > rl_end) | |
3550 | rl_point = rl_end; | |
3551 | else if (rl_point < 0) | |
3552 | rl_point = 0; | |
3553 | } | |
3554 | } | |
7117c2d2 | 3555 | |
3185942a JA |
3556 | unbind_variable ("READLINE_LINE"); |
3557 | unbind_variable ("READLINE_POINT"); | |
3558 | array_needs_making = 1; | |
bb70624e JA |
3559 | |
3560 | /* and restore the readline buffer and display after command execution. */ | |
3561 | rl_forced_update_display (); | |
3562 | return 0; | |
3563 | } | |
3564 | ||
3565 | static void | |
3566 | init_unix_command_map () | |
3567 | { | |
3568 | cmd_xmap = rl_make_bare_keymap (); | |
3569 | } | |
3570 | ||
3571 | static int | |
3572 | isolate_sequence (string, ind, need_dquote, startp) | |
3573 | char *string; | |
3574 | int ind, need_dquote, *startp; | |
3575 | { | |
3576 | register int i; | |
3577 | int c, passc, delim; | |
3578 | ||
3579 | for (i = ind; string[i] && whitespace (string[i]); i++) | |
3580 | ; | |
3581 | /* NEED_DQUOTE means that the first non-white character *must* be `"'. */ | |
3582 | if (need_dquote && string[i] != '"') | |
3583 | { | |
b80f6443 | 3584 | builtin_error (_("%s: first non-whitespace character is not `\"'"), string); |
bb70624e JA |
3585 | return -1; |
3586 | } | |
3587 | ||
3588 | /* We can have delimited strings even if NEED_DQUOTE == 0, like the command | |
3589 | string to bind the key sequence to. */ | |
3590 | delim = (string[i] == '"' || string[i] == '\'') ? string[i] : 0; | |
3591 | ||
3592 | if (startp) | |
3593 | *startp = delim ? ++i : i; | |
3594 | ||
3595 | for (passc = 0; c = string[i]; i++) | |
3596 | { | |
3597 | if (passc) | |
3598 | { | |
3599 | passc = 0; | |
3600 | continue; | |
3601 | } | |
3602 | if (c == '\\') | |
3603 | { | |
3604 | passc++; | |
3605 | continue; | |
3606 | } | |
3607 | if (c == delim) | |
28ef6c31 | 3608 | break; |
bb70624e JA |
3609 | } |
3610 | ||
3611 | if (delim && string[i] != delim) | |
3612 | { | |
b80f6443 | 3613 | builtin_error (_("no closing `%c' in %s"), delim, string); |
bb70624e JA |
3614 | return -1; |
3615 | } | |
3616 | ||
3617 | return i; | |
3618 | } | |
3619 | ||
3620 | int | |
3621 | bind_keyseq_to_unix_command (line) | |
3622 | char *line; | |
3623 | { | |
3624 | Keymap kmap; | |
3625 | char *kseq, *value; | |
f73dda09 | 3626 | int i, kstart; |
bb70624e JA |
3627 | |
3628 | if (cmd_xmap == 0) | |
3629 | init_unix_command_map (); | |
3630 | ||
3631 | kmap = rl_get_keymap (); | |
3632 | ||
3633 | /* We duplicate some of the work done by rl_parse_and_bind here, but | |
3634 | this code only has to handle `"keyseq": ["]command["]' and can | |
3635 | generate an error for anything else. */ | |
3636 | i = isolate_sequence (line, 0, 1, &kstart); | |
3637 | if (i < 0) | |
3638 | return -1; | |
3639 | ||
3640 | /* Create the key sequence string to pass to rl_generic_bind */ | |
3641 | kseq = substring (line, kstart, i); | |
3642 | ||
3643 | for ( ; line[i] && line[i] != ':'; i++) | |
3644 | ; | |
3645 | if (line[i] != ':') | |
3646 | { | |
b80f6443 | 3647 | builtin_error (_("%s: missing colon separator"), line); |
bb70624e JA |
3648 | return -1; |
3649 | } | |
3650 | ||
3651 | i = isolate_sequence (line, i + 1, 0, &kstart); | |
3652 | if (i < 0) | |
3653 | return -1; | |
3654 | ||
3655 | /* Create the value string containing the command to execute. */ | |
3656 | value = substring (line, kstart, i); | |
3657 | ||
3658 | /* Save the command to execute and the key sequence in the CMD_XMAP */ | |
3659 | rl_generic_bind (ISMACR, kseq, value, cmd_xmap); | |
3660 | ||
3661 | /* and bind the key sequence in the current keymap to a function that | |
3662 | understands how to execute from CMD_XMAP */ | |
b80f6443 | 3663 | rl_bind_keyseq_in_map (kseq, bash_execute_unix_command, kmap); |
bb70624e JA |
3664 | |
3665 | return 0; | |
3666 | } | |
3667 | ||
3668 | /* Used by the programmable completion code. Complete TEXT as a filename, | |
3669 | but return only directories as matches. Dequotes the filename before | |
3670 | attempting to find matches. */ | |
3671 | char ** | |
3672 | bash_directory_completion_matches (text) | |
28ef6c31 | 3673 | const char *text; |
bb70624e JA |
3674 | { |
3675 | char **m1; | |
3676 | char *dfn; | |
3677 | int qc; | |
3678 | ||
b80f6443 | 3679 | qc = rl_dispatching ? rl_completion_quote_character : 0; |
28ef6c31 JA |
3680 | dfn = bash_dequote_filename ((char *)text, qc); |
3681 | m1 = rl_completion_matches (dfn, rl_filename_completion_function); | |
bb70624e JA |
3682 | free (dfn); |
3683 | ||
3684 | if (m1 == 0 || m1[0] == 0) | |
3685 | return m1; | |
3686 | /* We don't bother recomputing the lcd of the matches, because it will just | |
3687 | get thrown away by the programmable completion code and recomputed | |
3688 | later. */ | |
3689 | (void)bash_ignore_filenames (m1); | |
3690 | return m1; | |
3691 | } | |
b80f6443 JA |
3692 | |
3693 | char * | |
3694 | bash_dequote_text (text) | |
3695 | const char *text; | |
3696 | { | |
3697 | char *dtxt; | |
3698 | int qc; | |
3699 | ||
3700 | qc = (text[0] == '"' || text[0] == '\'') ? text[0] : 0; | |
3701 | dtxt = bash_dequote_filename ((char *)text, qc); | |
3702 | return (dtxt); | |
3703 | } | |
ccc6cda3 | 3704 | #endif /* READLINE */ |