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Commit | Line | Data |
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726f6388 JA |
1 | /* bashline.c -- Bash's interface to the readline library. */ |
2 | ||
8868edaf | 3 | /* Copyright (C) 1987-2020 Free Software Foundation, Inc. |
726f6388 JA |
4 | |
5 | This file is part of GNU Bash, the Bourne Again SHell. | |
6 | ||
3185942a JA |
7 | Bash is free software: you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation, either version 3 of the License, or | |
10 | (at your option) any later version. | |
726f6388 | 11 | |
3185942a JA |
12 | Bash is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
726f6388 JA |
16 | |
17 | You should have received a copy of the GNU General Public License | |
3185942a JA |
18 | along with Bash. If not, see <http://www.gnu.org/licenses/>. |
19 | */ | |
726f6388 | 20 | |
ccc6cda3 JA |
21 | #include "config.h" |
22 | ||
23 | #if defined (READLINE) | |
24 | ||
726f6388 JA |
25 | #include "bashtypes.h" |
26 | #include "posixstat.h" | |
27 | ||
ccc6cda3 JA |
28 | #if defined (HAVE_UNISTD_H) |
29 | # include <unistd.h> | |
30 | #endif | |
31 | ||
f73dda09 JA |
32 | #if defined (HAVE_GRP_H) |
33 | # include <grp.h> | |
34 | #endif | |
35 | ||
7117c2d2 JA |
36 | #if defined (HAVE_NETDB_H) |
37 | # include <netdb.h> | |
38 | #endif | |
39 | ||
ac50fbac CR |
40 | #include <signal.h> |
41 | ||
726f6388 | 42 | #include <stdio.h> |
f73dda09 | 43 | #include "chartypes.h" |
726f6388 | 44 | #include "bashansi.h" |
b80f6443 JA |
45 | #include "bashintl.h" |
46 | ||
726f6388 | 47 | #include "shell.h" |
7117c2d2 | 48 | #include "input.h" |
d233b485 | 49 | #include "parser.h" |
726f6388 | 50 | #include "builtins.h" |
726f6388 | 51 | #include "bashhist.h" |
ccc6cda3 | 52 | #include "bashline.h" |
726f6388 | 53 | #include "execute_cmd.h" |
cce855bc | 54 | #include "findcmd.h" |
ccc6cda3 | 55 | #include "pathexp.h" |
3185942a | 56 | #include "shmbutil.h" |
ac50fbac | 57 | #include "trap.h" |
a0c0a00f CR |
58 | #include "flags.h" |
59 | ||
60 | #if defined (HAVE_MBSTR_H) && defined (HAVE_MBSCHR) | |
61 | # include <mbstr.h> /* mbschr */ | |
62 | #endif | |
3185942a | 63 | |
ccc6cda3 | 64 | #include "builtins/common.h" |
8868edaf | 65 | #include "builtins/builtext.h" /* for read_builtin */ |
3185942a | 66 | |
ccc6cda3 JA |
67 | #include <readline/rlconf.h> |
68 | #include <readline/readline.h> | |
69 | #include <readline/history.h> | |
d233b485 | 70 | #include <readline/rlmbutil.h> |
ccc6cda3 JA |
71 | |
72 | #include <glob/glob.h> | |
726f6388 JA |
73 | |
74 | #if defined (ALIAS) | |
75 | # include "alias.h" | |
76 | #endif | |
77 | ||
bb70624e JA |
78 | #if defined (PROGRAMMABLE_COMPLETION) |
79 | # include "pcomplete.h" | |
80 | #endif | |
81 | ||
7117c2d2 JA |
82 | /* These should agree with the defines for emacs_mode and vi_mode in |
83 | rldefs.h, even though that's not a public readline header file. */ | |
84 | #ifndef EMACS_EDITING_MODE | |
85 | # define NO_EDITING_MODE -1 | |
86 | # define EMACS_EDITING_MODE 1 | |
87 | # define VI_EDITING_MODE 0 | |
88 | #endif | |
89 | ||
8868edaf CR |
90 | /* Copied from rldefs.h, since that's not a public readline header file. */ |
91 | #ifndef FUNCTION_TO_KEYMAP | |
92 | ||
93 | #if defined (CRAY) | |
94 | # define FUNCTION_TO_KEYMAP(map, key) (Keymap)((int)map[key].function) | |
95 | # define KEYMAP_TO_FUNCTION(data) (rl_command_func_t *)((int)(data)) | |
96 | #else | |
97 | # define FUNCTION_TO_KEYMAP(map, key) (Keymap)(map[key].function) | |
98 | # define KEYMAP_TO_FUNCTION(data) (rl_command_func_t *)(data) | |
99 | #endif | |
100 | ||
101 | #endif | |
102 | ||
3185942a JA |
103 | #define RL_BOOLEAN_VARIABLE_VALUE(s) ((s)[0] == 'o' && (s)[1] == 'n' && (s)[2] == '\0') |
104 | ||
726f6388 | 105 | #if defined (BRACE_COMPLETION) |
8868edaf | 106 | extern int bash_brace_completion PARAMS((int, int)); |
726f6388 JA |
107 | #endif /* BRACE_COMPLETION */ |
108 | ||
0001803f | 109 | /* To avoid including curses.h/term.h/termcap.h and that whole mess. */ |
ac50fbac | 110 | #ifdef _MINIX |
8868edaf | 111 | extern int tputs PARAMS((const char *string, int nlines, void (*outx)(int))); |
ac50fbac | 112 | #else |
8868edaf | 113 | extern int tputs PARAMS((const char *string, int nlines, int (*outx)(int))); |
ac50fbac | 114 | #endif |
0001803f | 115 | |
28ef6c31 JA |
116 | /* Forward declarations */ |
117 | ||
726f6388 | 118 | /* Functions bound to keys in Readline for Bash users. */ |
8868edaf CR |
119 | static int shell_expand_line PARAMS((int, int)); |
120 | static int display_shell_version PARAMS((int, int)); | |
28ef6c31 | 121 | |
8868edaf CR |
122 | static int bash_ignore_filenames PARAMS((char **)); |
123 | static int bash_ignore_everything PARAMS((char **)); | |
124 | static int bash_progcomp_ignore_filenames PARAMS((char **)); | |
28ef6c31 | 125 | |
cce855bc | 126 | #if defined (BANG_HISTORY) |
8868edaf CR |
127 | static char *history_expand_line_internal PARAMS((char *)); |
128 | static int history_expand_line PARAMS((int, int)); | |
129 | static int tcsh_magic_space PARAMS((int, int)); | |
cce855bc | 130 | #endif /* BANG_HISTORY */ |
d166f048 | 131 | #ifdef ALIAS |
8868edaf | 132 | static int alias_expand_line PARAMS((int, int)); |
cce855bc JA |
133 | #endif |
134 | #if defined (BANG_HISTORY) && defined (ALIAS) | |
8868edaf | 135 | static int history_and_alias_expand_line PARAMS((int, int)); |
d166f048 | 136 | #endif |
726f6388 | 137 | |
8868edaf CR |
138 | static int bash_forward_shellword PARAMS((int, int)); |
139 | static int bash_backward_shellword PARAMS((int, int)); | |
140 | static int bash_kill_shellword PARAMS((int, int)); | |
141 | static int bash_backward_kill_shellword PARAMS((int, int)); | |
142 | static int bash_transpose_shellwords PARAMS((int, int)); | |
3185942a | 143 | |
726f6388 | 144 | /* Helper functions for Readline. */ |
8868edaf CR |
145 | static char *restore_tilde PARAMS((char *, char *)); |
146 | static char *maybe_restore_tilde PARAMS((char *, char *)); | |
3185942a | 147 | |
8868edaf | 148 | static char *bash_filename_rewrite_hook PARAMS((char *, int)); |
ac50fbac | 149 | |
8868edaf CR |
150 | static void bash_directory_expansion PARAMS((char **)); |
151 | static int bash_filename_stat_hook PARAMS((char **)); | |
152 | static int bash_command_name_stat_hook PARAMS((char **)); | |
153 | static int bash_directory_completion_hook PARAMS((char **)); | |
154 | static int filename_completion_ignore PARAMS((char **)); | |
155 | static int bash_push_line PARAMS((void)); | |
726f6388 | 156 | |
8868edaf | 157 | static int executable_completion PARAMS((const char *, int)); |
ac50fbac | 158 | |
8868edaf CR |
159 | static rl_icppfunc_t *save_directory_hook PARAMS((void)); |
160 | static void restore_directory_hook PARAMS((rl_icppfunc_t)); | |
16b2d7f4 | 161 | |
8868edaf | 162 | static int directory_exists PARAMS((const char *, int)); |
a0c0a00f | 163 | |
8868edaf CR |
164 | static void cleanup_expansion_error PARAMS((void)); |
165 | static void maybe_make_readline_line PARAMS((char *)); | |
166 | static void set_up_new_line PARAMS((char *)); | |
f73dda09 | 167 | |
8868edaf CR |
168 | static int check_redir PARAMS((int)); |
169 | static char **attempt_shell_completion PARAMS((const char *, int, int)); | |
170 | static char *variable_completion_function PARAMS((const char *, int)); | |
171 | static char *hostname_completion_function PARAMS((const char *, int)); | |
172 | static char *command_subst_completion_function PARAMS((const char *, int)); | |
ccc6cda3 | 173 | |
8868edaf CR |
174 | static void build_history_completion_array PARAMS((void)); |
175 | static char *history_completion_generator PARAMS((const char *, int)); | |
176 | static int dynamic_complete_history PARAMS((int, int)); | |
177 | static int bash_dabbrev_expand PARAMS((int, int)); | |
726f6388 | 178 | |
8868edaf CR |
179 | static void initialize_hostname_list PARAMS((void)); |
180 | static void add_host_name PARAMS((char *)); | |
181 | static void snarf_hosts_from_file PARAMS((char *)); | |
182 | static char **hostnames_matching PARAMS((char *)); | |
f73dda09 | 183 | |
8868edaf CR |
184 | static void _ignore_completion_names PARAMS((char **, sh_ignore_func_t *)); |
185 | static int name_is_acceptable PARAMS((const char *)); | |
186 | static int test_for_directory PARAMS((const char *)); | |
187 | static int test_for_canon_directory PARAMS((const char *)); | |
188 | static int return_zero PARAMS((const char *)); | |
28ef6c31 | 189 | |
8868edaf CR |
190 | static char *bash_dequote_filename PARAMS((char *, int)); |
191 | static char *quote_word_break_chars PARAMS((char *)); | |
192 | static void set_filename_bstab PARAMS((const char *)); | |
193 | static char *bash_quote_filename PARAMS((char *, int, char *)); | |
ccc6cda3 | 194 | |
ac50fbac | 195 | #ifdef _MINIX |
8868edaf | 196 | static void putx PARAMS((int)); |
ac50fbac | 197 | #else |
8868edaf | 198 | static int putx PARAMS((int)); |
ac50fbac | 199 | #endif |
8868edaf CR |
200 | static int readline_get_char_offset PARAMS((int)); |
201 | static void readline_set_char_offset PARAMS((int, int *)); | |
202 | ||
203 | static Keymap get_cmd_xmap_from_edit_mode PARAMS((void)); | |
204 | static Keymap get_cmd_xmap_from_keymap PARAMS((Keymap)); | |
f73dda09 | 205 | |
8868edaf CR |
206 | static void init_unix_command_map PARAMS((void)); |
207 | static int isolate_sequence PARAMS((char *, int, int, int *)); | |
208 | ||
209 | static int set_saved_history PARAMS((void)); | |
f73dda09 | 210 | |
ccc6cda3 | 211 | #if defined (ALIAS) |
8868edaf | 212 | static int posix_edit_macros PARAMS((int, int)); |
ccc6cda3 | 213 | #endif |
726f6388 | 214 | |
8868edaf | 215 | static int bash_event_hook PARAMS((void)); |
ac50fbac | 216 | |
bb70624e | 217 | #if defined (PROGRAMMABLE_COMPLETION) |
8868edaf CR |
218 | static int find_cmd_start PARAMS((int)); |
219 | static int find_cmd_end PARAMS((int)); | |
220 | static char *find_cmd_name PARAMS((int, int *, int *)); | |
221 | static char *prog_complete_return PARAMS((const char *, int)); | |
f73dda09 | 222 | |
bb70624e | 223 | static char **prog_complete_matches; |
bb70624e JA |
224 | #endif |
225 | ||
d233b485 | 226 | extern int no_symbolic_links; |
726f6388 | 227 | extern STRING_INT_ALIST word_token_alist[]; |
726f6388 JA |
228 | |
229 | /* SPECIFIC_COMPLETION_FUNCTIONS specifies that we have individual | |
230 | completion functions which indicate what type of completion should be | |
231 | done (at or before point) that can be bound to key sequences with | |
232 | the readline library. */ | |
233 | #define SPECIFIC_COMPLETION_FUNCTIONS | |
234 | ||
235 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
8868edaf CR |
236 | static int bash_specific_completion PARAMS((int, rl_compentry_func_t *)); |
237 | ||
238 | static int bash_complete_filename_internal PARAMS((int)); | |
239 | static int bash_complete_username_internal PARAMS((int)); | |
240 | static int bash_complete_hostname_internal PARAMS((int)); | |
241 | static int bash_complete_variable_internal PARAMS((int)); | |
242 | static int bash_complete_command_internal PARAMS((int)); | |
243 | ||
244 | static int bash_complete_filename PARAMS((int, int)); | |
245 | static int bash_possible_filename_completions PARAMS((int, int)); | |
246 | static int bash_complete_username PARAMS((int, int)); | |
247 | static int bash_possible_username_completions PARAMS((int, int)); | |
248 | static int bash_complete_hostname PARAMS((int, int)); | |
249 | static int bash_possible_hostname_completions PARAMS((int, int)); | |
250 | static int bash_complete_variable PARAMS((int, int)); | |
251 | static int bash_possible_variable_completions PARAMS((int, int)); | |
252 | static int bash_complete_command PARAMS((int, int)); | |
253 | static int bash_possible_command_completions PARAMS((int, int)); | |
254 | ||
255 | static int completion_glob_pattern PARAMS((char *)); | |
256 | static char *glob_complete_word PARAMS((const char *, int)); | |
257 | static int bash_glob_completion_internal PARAMS((int)); | |
258 | static int bash_glob_complete_word PARAMS((int, int)); | |
259 | static int bash_glob_expand_word PARAMS((int, int)); | |
260 | static int bash_glob_list_expansions PARAMS((int, int)); | |
b80f6443 | 261 | |
726f6388 JA |
262 | #endif /* SPECIFIC_COMPLETION_FUNCTIONS */ |
263 | ||
8868edaf | 264 | static int edit_and_execute_command PARAMS((int, int, int, char *)); |
726f6388 | 265 | #if defined (VI_MODE) |
8868edaf CR |
266 | static int vi_edit_and_execute_command PARAMS((int, int)); |
267 | static int bash_vi_complete PARAMS((int, int)); | |
726f6388 | 268 | #endif |
8868edaf | 269 | static int emacs_edit_and_execute_command PARAMS((int, int)); |
726f6388 | 270 | |
8868edaf | 271 | /* Non-zero once initialize_readline () has been called. */ |
ccc6cda3 JA |
272 | int bash_readline_initialized = 0; |
273 | ||
274 | /* If non-zero, we do hostname completion, breaking words at `@' and | |
275 | trying to complete the stuff after the `@' from our own internal | |
276 | host list. */ | |
277 | int perform_hostname_completion = 1; | |
278 | ||
bb70624e JA |
279 | /* If non-zero, we don't do command completion on an empty line. */ |
280 | int no_empty_command_completion; | |
281 | ||
b80f6443 JA |
282 | /* Set FORCE_FIGNORE if you want to honor FIGNORE even if it ignores the |
283 | only possible matches. Set to 0 if you want to match filenames if they | |
284 | are the only possible matches, even if FIGNORE says to. */ | |
285 | int force_fignore = 1; | |
286 | ||
3185942a JA |
287 | /* Perform spelling correction on directory names during word completion */ |
288 | int dircomplete_spelling = 0; | |
289 | ||
16b2d7f4 | 290 | /* Expand directory names during word/filename completion. */ |
ac50fbac CR |
291 | #if DIRCOMPLETE_EXPAND_DEFAULT |
292 | int dircomplete_expand = 1; | |
293 | int dircomplete_expand_relpath = 1; | |
294 | #else | |
16b2d7f4 CR |
295 | int dircomplete_expand = 0; |
296 | int dircomplete_expand_relpath = 0; | |
ac50fbac CR |
297 | #endif |
298 | ||
299 | /* When non-zero, perform `normal' shell quoting on completed filenames | |
300 | even when the completed name contains a directory name with a shell | |
8868edaf | 301 | variable reference, so dollar signs in a filename get quoted appropriately. |
ac50fbac CR |
302 | Set to zero to remove dollar sign (and braces or parens as needed) from |
303 | the set of characters that will be quoted. */ | |
304 | int complete_fullquote = 1; | |
16b2d7f4 | 305 | |
ccc6cda3 JA |
306 | static char *bash_completer_word_break_characters = " \t\n\"'@><=;|&(:"; |
307 | static char *bash_nohostname_word_break_characters = " \t\n\"'><=;|&(:"; | |
b80f6443 | 308 | /* )) */ |
ccc6cda3 | 309 | |
16b2d7f4 CR |
310 | static const char *default_filename_quote_characters = " \t\n\\\"'@<>=;|&()#$`?*[!:{~"; /*}*/ |
311 | static char *custom_filename_quote_characters = 0; | |
ac50fbac | 312 | static char filename_bstab[256]; |
16b2d7f4 | 313 | |
28ef6c31 | 314 | static rl_hook_func_t *old_rl_startup_hook = (rl_hook_func_t *)NULL; |
726f6388 | 315 | |
95732b49 JA |
316 | static int dot_in_path = 0; |
317 | ||
0001803f CR |
318 | /* Set to non-zero when dabbrev-expand is running */ |
319 | static int dabbrev_expand_active = 0; | |
320 | ||
ccc6cda3 JA |
321 | /* What kind of quoting is performed by bash_quote_filename: |
322 | COMPLETE_DQUOTE = double-quoting the filename | |
323 | COMPLETE_SQUOTE = single_quoting the filename | |
324 | COMPLETE_BSQUOTE = backslash-quoting special chars in the filename | |
325 | */ | |
326 | #define COMPLETE_DQUOTE 1 | |
327 | #define COMPLETE_SQUOTE 2 | |
328 | #define COMPLETE_BSQUOTE 3 | |
329 | static int completion_quoting_style = COMPLETE_BSQUOTE; | |
330 | ||
0628567a JA |
331 | /* Flag values for the final argument to bash_default_completion */ |
332 | #define DEFCOMP_CMDPOS 1 | |
333 | ||
8868edaf CR |
334 | static rl_command_func_t *vi_tab_binding = rl_complete; |
335 | ||
726f6388 JA |
336 | /* Change the readline VI-mode keymaps into or out of Posix.2 compliance. |
337 | Called when the shell is put into or out of `posix' mode. */ | |
338 | void | |
339 | posix_readline_initialize (on_or_off) | |
340 | int on_or_off; | |
341 | { | |
8868edaf CR |
342 | static char kseq[2] = { CTRL ('I'), 0 }; /* TAB */ |
343 | ||
ccc6cda3 JA |
344 | if (on_or_off) |
345 | rl_variable_bind ("comment-begin", "#"); | |
726f6388 | 346 | #if defined (VI_MODE) |
8868edaf CR |
347 | if (on_or_off) |
348 | { | |
349 | vi_tab_binding = rl_function_of_keyseq (kseq, vi_insertion_keymap, (int *)NULL); | |
350 | rl_bind_key_in_map (CTRL ('I'), rl_insert, vi_insertion_keymap); | |
351 | } | |
352 | else | |
353 | { | |
354 | if (rl_function_of_keyseq (kseq, vi_insertion_keymap, (int *)NULL) == rl_insert) | |
355 | rl_bind_key_in_map (CTRL ('I'), vi_tab_binding, vi_insertion_keymap); | |
356 | } | |
ccc6cda3 JA |
357 | #endif |
358 | } | |
359 | ||
3185942a JA |
360 | void |
361 | reset_completer_word_break_chars () | |
362 | { | |
363 | rl_completer_word_break_characters = perform_hostname_completion ? savestring (bash_completer_word_break_characters) : savestring (bash_nohostname_word_break_characters); | |
364 | } | |
365 | ||
b80f6443 JA |
366 | /* When this function returns, rl_completer_word_break_characters points to |
367 | dynamically allocated memory. */ | |
f73dda09 | 368 | int |
ccc6cda3 JA |
369 | enable_hostname_completion (on_or_off) |
370 | int on_or_off; | |
371 | { | |
f73dda09 | 372 | int old_value; |
b80f6443 | 373 | char *at, *nv, *nval; |
f73dda09 JA |
374 | |
375 | old_value = perform_hostname_completion; | |
376 | ||
726f6388 JA |
377 | if (on_or_off) |
378 | { | |
ccc6cda3 JA |
379 | perform_hostname_completion = 1; |
380 | rl_special_prefixes = "$@"; | |
726f6388 JA |
381 | } |
382 | else | |
ccc6cda3 JA |
383 | { |
384 | perform_hostname_completion = 0; | |
385 | rl_special_prefixes = "$"; | |
b80f6443 JA |
386 | } |
387 | ||
388 | /* Now we need to figure out how to appropriately modify and assign | |
389 | rl_completer_word_break_characters depending on whether we want | |
390 | hostname completion on or off. */ | |
391 | ||
392 | /* If this is the first time this has been called | |
393 | (bash_readline_initialized == 0), use the sames values as before, but | |
394 | allocate new memory for rl_completer_word_break_characters. */ | |
395 | ||
396 | if (bash_readline_initialized == 0 && | |
397 | (rl_completer_word_break_characters == 0 || | |
398 | rl_completer_word_break_characters == rl_basic_word_break_characters)) | |
399 | { | |
400 | if (on_or_off) | |
401 | rl_completer_word_break_characters = savestring (bash_completer_word_break_characters); | |
402 | else | |
403 | rl_completer_word_break_characters = savestring (bash_nohostname_word_break_characters); | |
404 | } | |
405 | else | |
406 | { | |
407 | /* See if we have anything to do. */ | |
408 | at = strchr (rl_completer_word_break_characters, '@'); | |
409 | if ((at == 0 && on_or_off == 0) || (at != 0 && on_or_off != 0)) | |
eb873671 | 410 | return old_value; |
b80f6443 JA |
411 | |
412 | /* We have something to do. Do it. */ | |
413 | nval = (char *)xmalloc (strlen (rl_completer_word_break_characters) + 1 + on_or_off); | |
414 | ||
415 | if (on_or_off == 0) | |
416 | { | |
417 | /* Turn it off -- just remove `@' from word break chars. We want | |
418 | to remove all occurrences of `@' from the char list, so we loop | |
419 | rather than just copy the rest of the list over AT. */ | |
420 | for (nv = nval, at = rl_completer_word_break_characters; *at; ) | |
421 | if (*at != '@') | |
422 | *nv++ = *at++; | |
423 | else | |
424 | at++; | |
425 | *nv = '\0'; | |
426 | } | |
427 | else | |
428 | { | |
429 | nval[0] = '@'; | |
430 | strcpy (nval + 1, rl_completer_word_break_characters); | |
431 | } | |
432 | ||
433 | free (rl_completer_word_break_characters); | |
434 | rl_completer_word_break_characters = nval; | |
ccc6cda3 | 435 | } |
f73dda09 JA |
436 | |
437 | return (old_value); | |
ccc6cda3 | 438 | } |
726f6388 JA |
439 | |
440 | /* Called once from parse.y if we are going to use readline. */ | |
441 | void | |
442 | initialize_readline () | |
443 | { | |
b80f6443 JA |
444 | rl_command_func_t *func; |
445 | char kseq[2]; | |
446 | ||
726f6388 JA |
447 | if (bash_readline_initialized) |
448 | return; | |
449 | ||
450 | rl_terminal_name = get_string_value ("TERM"); | |
451 | rl_instream = stdin; | |
452 | rl_outstream = stderr; | |
726f6388 JA |
453 | |
454 | /* Allow conditional parsing of the ~/.inputrc file. */ | |
455 | rl_readline_name = "Bash"; | |
456 | ||
28ef6c31 JA |
457 | /* Add bindable names before calling rl_initialize so they may be |
458 | referenced in the various inputrc files. */ | |
459 | rl_add_defun ("shell-expand-line", shell_expand_line, -1); | |
cce855bc | 460 | #ifdef BANG_HISTORY |
28ef6c31 JA |
461 | rl_add_defun ("history-expand-line", history_expand_line, -1); |
462 | rl_add_defun ("magic-space", tcsh_magic_space, -1); | |
cce855bc JA |
463 | #endif |
464 | ||
3185942a JA |
465 | rl_add_defun ("shell-forward-word", bash_forward_shellword, -1); |
466 | rl_add_defun ("shell-backward-word", bash_backward_shellword, -1); | |
467 | rl_add_defun ("shell-kill-word", bash_kill_shellword, -1); | |
468 | rl_add_defun ("shell-backward-kill-word", bash_backward_kill_shellword, -1); | |
8868edaf | 469 | rl_add_defun ("shell-transpose-words", bash_transpose_shellwords, -1); |
3185942a | 470 | |
d166f048 | 471 | #ifdef ALIAS |
28ef6c31 | 472 | rl_add_defun ("alias-expand-line", alias_expand_line, -1); |
bc4cd23c | 473 | # ifdef BANG_HISTORY |
28ef6c31 | 474 | rl_add_defun ("history-and-alias-expand-line", history_and_alias_expand_line, -1); |
bc4cd23c | 475 | # endif |
d166f048 JA |
476 | #endif |
477 | ||
726f6388 JA |
478 | /* Backwards compatibility. */ |
479 | rl_add_defun ("insert-last-argument", rl_yank_last_arg, -1); | |
480 | ||
28ef6c31 | 481 | rl_add_defun ("display-shell-version", display_shell_version, -1); |
7117c2d2 | 482 | rl_add_defun ("edit-and-execute-command", emacs_edit_and_execute_command, -1); |
28ef6c31 JA |
483 | |
484 | #if defined (BRACE_COMPLETION) | |
485 | rl_add_defun ("complete-into-braces", bash_brace_completion, -1); | |
486 | #endif | |
487 | ||
488 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
489 | rl_add_defun ("complete-filename", bash_complete_filename, -1); | |
490 | rl_add_defun ("possible-filename-completions", bash_possible_filename_completions, -1); | |
491 | rl_add_defun ("complete-username", bash_complete_username, -1); | |
492 | rl_add_defun ("possible-username-completions", bash_possible_username_completions, -1); | |
493 | rl_add_defun ("complete-hostname", bash_complete_hostname, -1); | |
494 | rl_add_defun ("possible-hostname-completions", bash_possible_hostname_completions, -1); | |
495 | rl_add_defun ("complete-variable", bash_complete_variable, -1); | |
496 | rl_add_defun ("possible-variable-completions", bash_possible_variable_completions, -1); | |
497 | rl_add_defun ("complete-command", bash_complete_command, -1); | |
498 | rl_add_defun ("possible-command-completions", bash_possible_command_completions, -1); | |
7117c2d2 | 499 | rl_add_defun ("glob-complete-word", bash_glob_complete_word, -1); |
28ef6c31 JA |
500 | rl_add_defun ("glob-expand-word", bash_glob_expand_word, -1); |
501 | rl_add_defun ("glob-list-expansions", bash_glob_list_expansions, -1); | |
502 | #endif | |
503 | ||
504 | rl_add_defun ("dynamic-complete-history", dynamic_complete_history, -1); | |
3185942a | 505 | rl_add_defun ("dabbrev-expand", bash_dabbrev_expand, -1); |
726f6388 | 506 | |
28ef6c31 JA |
507 | /* Bind defaults before binding our custom shell keybindings. */ |
508 | if (RL_ISSTATE(RL_STATE_INITIALIZED) == 0) | |
509 | rl_initialize (); | |
510 | ||
511 | /* Bind up our special shell functions. */ | |
b80f6443 | 512 | rl_bind_key_if_unbound_in_map (CTRL('E'), shell_expand_line, emacs_meta_keymap); |
28ef6c31 | 513 | |
28ef6c31 | 514 | #ifdef BANG_HISTORY |
b80f6443 | 515 | rl_bind_key_if_unbound_in_map ('^', history_expand_line, emacs_meta_keymap); |
28ef6c31 JA |
516 | #endif |
517 | ||
b80f6443 | 518 | rl_bind_key_if_unbound_in_map (CTRL ('V'), display_shell_version, emacs_ctlx_keymap); |
726f6388 JA |
519 | |
520 | /* In Bash, the user can switch editing modes with "set -o [vi emacs]", | |
521 | so it is not necessary to allow C-M-j for context switching. Turn | |
522 | off this occasionally confusing behaviour. */ | |
b80f6443 JA |
523 | kseq[0] = CTRL('J'); |
524 | kseq[1] = '\0'; | |
525 | func = rl_function_of_keyseq (kseq, emacs_meta_keymap, (int *)NULL); | |
526 | if (func == rl_vi_editing_mode) | |
527 | rl_unbind_key_in_map (CTRL('J'), emacs_meta_keymap); | |
528 | kseq[0] = CTRL('M'); | |
529 | func = rl_function_of_keyseq (kseq, emacs_meta_keymap, (int *)NULL); | |
530 | if (func == rl_vi_editing_mode) | |
531 | rl_unbind_key_in_map (CTRL('M'), emacs_meta_keymap); | |
726f6388 | 532 | #if defined (VI_MODE) |
8868edaf CR |
533 | kseq[0] = CTRL('E'); |
534 | func = rl_function_of_keyseq (kseq, vi_movement_keymap, (int *)NULL); | |
535 | if (func == rl_emacs_editing_mode) | |
536 | rl_unbind_key_in_map (CTRL('E'), vi_movement_keymap); | |
726f6388 | 537 | #endif |
ccc6cda3 | 538 | |
726f6388 | 539 | #if defined (BRACE_COMPLETION) |
b80f6443 | 540 | rl_bind_key_if_unbound_in_map ('{', bash_brace_completion, emacs_meta_keymap); /*}*/ |
726f6388 JA |
541 | #endif /* BRACE_COMPLETION */ |
542 | ||
543 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
b80f6443 JA |
544 | rl_bind_key_if_unbound_in_map ('/', bash_complete_filename, emacs_meta_keymap); |
545 | rl_bind_key_if_unbound_in_map ('/', bash_possible_filename_completions, emacs_ctlx_keymap); | |
28ef6c31 | 546 | |
b80f6443 JA |
547 | /* Have to jump through hoops here because there is a default binding for |
548 | M-~ (rl_tilde_expand) */ | |
549 | kseq[0] = '~'; | |
550 | kseq[1] = '\0'; | |
551 | func = rl_function_of_keyseq (kseq, emacs_meta_keymap, (int *)NULL); | |
552 | if (func == 0 || func == rl_tilde_expand) | |
553 | rl_bind_keyseq_in_map (kseq, bash_complete_username, emacs_meta_keymap); | |
28ef6c31 | 554 | |
b80f6443 | 555 | rl_bind_key_if_unbound_in_map ('~', bash_possible_username_completions, emacs_ctlx_keymap); |
28ef6c31 | 556 | |
b80f6443 JA |
557 | rl_bind_key_if_unbound_in_map ('@', bash_complete_hostname, emacs_meta_keymap); |
558 | rl_bind_key_if_unbound_in_map ('@', bash_possible_hostname_completions, emacs_ctlx_keymap); | |
28ef6c31 | 559 | |
b80f6443 JA |
560 | rl_bind_key_if_unbound_in_map ('$', bash_complete_variable, emacs_meta_keymap); |
561 | rl_bind_key_if_unbound_in_map ('$', bash_possible_variable_completions, emacs_ctlx_keymap); | |
28ef6c31 | 562 | |
b80f6443 JA |
563 | rl_bind_key_if_unbound_in_map ('!', bash_complete_command, emacs_meta_keymap); |
564 | rl_bind_key_if_unbound_in_map ('!', bash_possible_command_completions, emacs_ctlx_keymap); | |
565 | ||
566 | rl_bind_key_if_unbound_in_map ('g', bash_glob_complete_word, emacs_meta_keymap); | |
567 | rl_bind_key_if_unbound_in_map ('*', bash_glob_expand_word, emacs_ctlx_keymap); | |
568 | rl_bind_key_if_unbound_in_map ('g', bash_glob_list_expansions, emacs_ctlx_keymap); | |
726f6388 JA |
569 | |
570 | #endif /* SPECIFIC_COMPLETION_FUNCTIONS */ | |
571 | ||
95732b49 JA |
572 | kseq[0] = TAB; |
573 | kseq[1] = '\0'; | |
574 | func = rl_function_of_keyseq (kseq, emacs_meta_keymap, (int *)NULL); | |
575 | if (func == 0 || func == rl_tab_insert) | |
576 | rl_bind_key_in_map (TAB, dynamic_complete_history, emacs_meta_keymap); | |
726f6388 JA |
577 | |
578 | /* Tell the completer that we want a crack first. */ | |
28ef6c31 | 579 | rl_attempted_completion_function = attempt_shell_completion; |
726f6388 JA |
580 | |
581 | /* Tell the completer that we might want to follow symbolic links or | |
582 | do other expansion on directory names. */ | |
16b2d7f4 | 583 | set_directory_hook (); |
726f6388 | 584 | |
0001803f CR |
585 | rl_filename_rewrite_hook = bash_filename_rewrite_hook; |
586 | ||
ac50fbac CR |
587 | rl_filename_stat_hook = bash_filename_stat_hook; |
588 | ||
726f6388 | 589 | /* Tell the filename completer we want a chance to ignore some names. */ |
28ef6c31 | 590 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 | 591 | |
7117c2d2 | 592 | /* Bind C-xC-e to invoke emacs and run result as commands. */ |
b80f6443 | 593 | rl_bind_key_if_unbound_in_map (CTRL ('E'), emacs_edit_and_execute_command, emacs_ctlx_keymap); |
726f6388 | 594 | #if defined (VI_MODE) |
b80f6443 | 595 | rl_bind_key_if_unbound_in_map ('v', vi_edit_and_execute_command, vi_movement_keymap); |
ccc6cda3 | 596 | # if defined (ALIAS) |
b80f6443 | 597 | rl_bind_key_if_unbound_in_map ('@', posix_edit_macros, vi_movement_keymap); |
ccc6cda3 | 598 | # endif |
b80f6443 JA |
599 | |
600 | rl_bind_key_in_map ('\\', bash_vi_complete, vi_movement_keymap); | |
601 | rl_bind_key_in_map ('*', bash_vi_complete, vi_movement_keymap); | |
602 | rl_bind_key_in_map ('=', bash_vi_complete, vi_movement_keymap); | |
726f6388 JA |
603 | #endif |
604 | ||
605 | rl_completer_quote_characters = "'\""; | |
ccc6cda3 JA |
606 | |
607 | /* This sets rl_completer_word_break_characters and rl_special_prefixes | |
608 | to the appropriate values, depending on whether or not hostname | |
609 | completion is enabled. */ | |
610 | enable_hostname_completion (perform_hostname_completion); | |
611 | ||
612 | /* characters that need to be quoted when appearing in filenames. */ | |
16b2d7f4 | 613 | rl_filename_quote_characters = default_filename_quote_characters; |
ac50fbac | 614 | set_filename_bstab (rl_filename_quote_characters); |
495aee44 | 615 | |
ccc6cda3 JA |
616 | rl_filename_quoting_function = bash_quote_filename; |
617 | rl_filename_dequoting_function = bash_dequote_filename; | |
618 | rl_char_is_quoted_p = char_is_quoted; | |
726f6388 | 619 | |
8868edaf CR |
620 | /* Add some default bindings for the "shellwords" functions, roughly |
621 | parallelling the default word bindings in emacs mode. */ | |
622 | rl_bind_key_if_unbound_in_map (CTRL('B'), bash_backward_shellword, emacs_meta_keymap); | |
623 | rl_bind_key_if_unbound_in_map (CTRL('D'), bash_kill_shellword, emacs_meta_keymap); | |
624 | rl_bind_key_if_unbound_in_map (CTRL('F'), bash_forward_shellword, emacs_meta_keymap); | |
625 | rl_bind_key_if_unbound_in_map (CTRL('T'), bash_transpose_shellwords, emacs_meta_keymap); | |
626 | ||
7117c2d2 JA |
627 | #if 0 |
628 | /* This is superfluous and makes it impossible to use tab completion in | |
629 | vi mode even when explicitly binding it in ~/.inputrc. sv_strict_posix() | |
630 | should already have called posix_readline_initialize() when | |
631 | posixly_correct was set. */ | |
726f6388 JA |
632 | if (posixly_correct) |
633 | posix_readline_initialize (1); | |
7117c2d2 | 634 | #endif |
726f6388 JA |
635 | |
636 | bash_readline_initialized = 1; | |
637 | } | |
638 | ||
3185942a JA |
639 | void |
640 | bashline_reinitialize () | |
641 | { | |
642 | bash_readline_initialized = 0; | |
643 | } | |
644 | ||
ac50fbac CR |
645 | void |
646 | bashline_set_event_hook () | |
647 | { | |
648 | rl_signal_event_hook = bash_event_hook; | |
649 | } | |
650 | ||
651 | void | |
652 | bashline_reset_event_hook () | |
653 | { | |
654 | rl_signal_event_hook = 0; | |
655 | } | |
656 | ||
726f6388 JA |
657 | /* On Sun systems at least, rl_attempted_completion_function can end up |
658 | getting set to NULL, and rl_completion_entry_function set to do command | |
659 | word completion if Bash is interrupted while trying to complete a command | |
660 | word. This just resets all the completion functions to the right thing. | |
661 | It's called from throw_to_top_level(). */ | |
662 | void | |
3185942a | 663 | bashline_reset () |
726f6388 JA |
664 | { |
665 | tilde_initialize (); | |
666 | rl_attempted_completion_function = attempt_shell_completion; | |
28ef6c31 | 667 | rl_completion_entry_function = NULL; |
28ef6c31 | 668 | rl_ignore_some_completions_function = filename_completion_ignore; |
16b2d7f4 | 669 | rl_filename_quote_characters = default_filename_quote_characters; |
ac50fbac | 670 | set_filename_bstab (rl_filename_quote_characters); |
16b2d7f4 CR |
671 | |
672 | set_directory_hook (); | |
ac50fbac CR |
673 | rl_filename_stat_hook = bash_filename_stat_hook; |
674 | ||
675 | bashline_reset_event_hook (); | |
a0c0a00f CR |
676 | |
677 | rl_sort_completion_matches = 1; | |
726f6388 JA |
678 | } |
679 | ||
680 | /* Contains the line to push into readline. */ | |
681 | static char *push_to_readline = (char *)NULL; | |
682 | ||
683 | /* Push the contents of push_to_readline into the | |
684 | readline buffer. */ | |
28ef6c31 | 685 | static int |
726f6388 JA |
686 | bash_push_line () |
687 | { | |
688 | if (push_to_readline) | |
689 | { | |
690 | rl_insert_text (push_to_readline); | |
691 | free (push_to_readline); | |
692 | push_to_readline = (char *)NULL; | |
693 | rl_startup_hook = old_rl_startup_hook; | |
694 | } | |
28ef6c31 | 695 | return 0; |
726f6388 JA |
696 | } |
697 | ||
698 | /* Call this to set the initial text for the next line to read | |
699 | from readline. */ | |
700 | int | |
701 | bash_re_edit (line) | |
702 | char *line; | |
703 | { | |
ccc6cda3 | 704 | FREE (push_to_readline); |
726f6388 JA |
705 | |
706 | push_to_readline = savestring (line); | |
707 | old_rl_startup_hook = rl_startup_hook; | |
28ef6c31 | 708 | rl_startup_hook = bash_push_line; |
726f6388 JA |
709 | |
710 | return (0); | |
711 | } | |
712 | ||
28ef6c31 | 713 | static int |
726f6388 JA |
714 | display_shell_version (count, c) |
715 | int count, c; | |
716 | { | |
28ef6c31 | 717 | rl_crlf (); |
ccc6cda3 | 718 | show_shell_version (0); |
726f6388 JA |
719 | putc ('\r', rl_outstream); |
720 | fflush (rl_outstream); | |
721 | rl_on_new_line (); | |
722 | rl_redisplay (); | |
28ef6c31 | 723 | return 0; |
726f6388 JA |
724 | } |
725 | ||
726 | /* **************************************************************** */ | |
727 | /* */ | |
728 | /* Readline Stuff */ | |
729 | /* */ | |
730 | /* **************************************************************** */ | |
731 | ||
732 | /* If the user requests hostname completion, then simply build a list | |
bb70624e JA |
733 | of hosts, and complete from that forever more, or at least until |
734 | HOSTFILE is unset. */ | |
726f6388 | 735 | |
bb70624e | 736 | /* THIS SHOULD BE A STRINGLIST. */ |
726f6388 JA |
737 | /* The kept list of hostnames. */ |
738 | static char **hostname_list = (char **)NULL; | |
739 | ||
740 | /* The physical size of the above list. */ | |
ccc6cda3 | 741 | static int hostname_list_size; |
726f6388 | 742 | |
ccc6cda3 JA |
743 | /* The number of hostnames in the above list. */ |
744 | static int hostname_list_length; | |
726f6388 JA |
745 | |
746 | /* Whether or not HOSTNAME_LIST has been initialized. */ | |
747 | int hostname_list_initialized = 0; | |
748 | ||
726f6388 JA |
749 | /* Initialize the hostname completion table. */ |
750 | static void | |
751 | initialize_hostname_list () | |
752 | { | |
753 | char *temp; | |
754 | ||
755 | temp = get_string_value ("HOSTFILE"); | |
ccc6cda3 | 756 | if (temp == 0) |
726f6388 | 757 | temp = get_string_value ("hostname_completion_file"); |
ccc6cda3 JA |
758 | if (temp == 0) |
759 | temp = DEFAULT_HOSTS_FILE; | |
726f6388 JA |
760 | |
761 | snarf_hosts_from_file (temp); | |
726f6388 JA |
762 | |
763 | if (hostname_list) | |
764 | hostname_list_initialized++; | |
765 | } | |
766 | ||
767 | /* Add NAME to the list of hosts. */ | |
768 | static void | |
769 | add_host_name (name) | |
770 | char *name; | |
771 | { | |
772 | if (hostname_list_length + 2 > hostname_list_size) | |
773 | { | |
ccc6cda3 | 774 | hostname_list_size = (hostname_list_size + 32) - (hostname_list_size % 32); |
7117c2d2 | 775 | hostname_list = strvec_resize (hostname_list, hostname_list_size); |
726f6388 JA |
776 | } |
777 | ||
ccc6cda3 JA |
778 | hostname_list[hostname_list_length++] = savestring (name); |
779 | hostname_list[hostname_list_length] = (char *)NULL; | |
726f6388 JA |
780 | } |
781 | ||
782 | #define cr_whitespace(c) ((c) == '\r' || (c) == '\n' || whitespace(c)) | |
783 | ||
784 | static void | |
785 | snarf_hosts_from_file (filename) | |
786 | char *filename; | |
787 | { | |
ccc6cda3 | 788 | FILE *file; |
726f6388 JA |
789 | char *temp, buffer[256], name[256]; |
790 | register int i, start; | |
791 | ||
ccc6cda3 JA |
792 | file = fopen (filename, "r"); |
793 | if (file == 0) | |
726f6388 JA |
794 | return; |
795 | ||
796 | while (temp = fgets (buffer, 255, file)) | |
797 | { | |
798 | /* Skip to first character. */ | |
ccc6cda3 JA |
799 | for (i = 0; buffer[i] && cr_whitespace (buffer[i]); i++) |
800 | ; | |
726f6388 | 801 | |
ccc6cda3 JA |
802 | /* If comment or blank line, ignore. */ |
803 | if (buffer[i] == '\0' || buffer[i] == '#') | |
726f6388 JA |
804 | continue; |
805 | ||
806 | /* If `preprocessor' directive, do the include. */ | |
ccc6cda3 | 807 | if (strncmp (buffer + i, "$include ", 9) == 0) |
726f6388 | 808 | { |
ccc6cda3 | 809 | char *incfile, *t; |
726f6388 JA |
810 | |
811 | /* Find start of filename. */ | |
ccc6cda3 JA |
812 | for (incfile = buffer + i + 9; *incfile && whitespace (*incfile); incfile++) |
813 | ; | |
726f6388 JA |
814 | |
815 | /* Find end of filename. */ | |
ccc6cda3 JA |
816 | for (t = incfile; *t && cr_whitespace (*t) == 0; t++) |
817 | ; | |
726f6388 JA |
818 | |
819 | *t = '\0'; | |
820 | ||
ccc6cda3 | 821 | snarf_hosts_from_file (incfile); |
726f6388 JA |
822 | continue; |
823 | } | |
824 | ||
ccc6cda3 | 825 | /* Skip internet address if present. */ |
f73dda09 | 826 | if (DIGIT (buffer[i])) |
ccc6cda3 | 827 | for (; buffer[i] && cr_whitespace (buffer[i]) == 0; i++); |
726f6388 JA |
828 | |
829 | /* Gobble up names. Each name is separated with whitespace. */ | |
ccc6cda3 | 830 | while (buffer[i]) |
726f6388 | 831 | { |
ccc6cda3 JA |
832 | for (; cr_whitespace (buffer[i]); i++) |
833 | ; | |
834 | if (buffer[i] == '\0' || buffer[i] == '#') | |
835 | break; | |
836 | ||
837 | /* Isolate the current word. */ | |
838 | for (start = i; buffer[i] && cr_whitespace (buffer[i]) == 0; i++) | |
839 | ; | |
840 | if (i == start) | |
726f6388 JA |
841 | continue; |
842 | strncpy (name, buffer + start, i - start); | |
843 | name[i - start] = '\0'; | |
844 | add_host_name (name); | |
845 | } | |
846 | } | |
847 | fclose (file); | |
848 | } | |
849 | ||
bb70624e JA |
850 | /* Return the hostname list. */ |
851 | char ** | |
852 | get_hostname_list () | |
853 | { | |
854 | if (hostname_list_initialized == 0) | |
855 | initialize_hostname_list (); | |
856 | return (hostname_list); | |
857 | } | |
858 | ||
859 | void | |
860 | clear_hostname_list () | |
861 | { | |
862 | register int i; | |
863 | ||
864 | if (hostname_list_initialized == 0) | |
865 | return; | |
866 | for (i = 0; i < hostname_list_length; i++) | |
867 | free (hostname_list[i]); | |
0001803f | 868 | hostname_list_length = hostname_list_initialized = 0; |
bb70624e JA |
869 | } |
870 | ||
726f6388 | 871 | /* Return a NULL terminated list of hostnames which begin with TEXT. |
ac50fbac | 872 | Initialize the hostname list the first time if necessary. |
726f6388 JA |
873 | The array is malloc ()'ed, but not the individual strings. */ |
874 | static char ** | |
875 | hostnames_matching (text) | |
876 | char *text; | |
877 | { | |
ccc6cda3 JA |
878 | register int i, len, nmatch, rsize; |
879 | char **result; | |
726f6388 | 880 | |
ccc6cda3 JA |
881 | if (hostname_list_initialized == 0) |
882 | initialize_hostname_list (); | |
726f6388 | 883 | |
ccc6cda3 JA |
884 | if (hostname_list_initialized == 0) |
885 | return ((char **)NULL); | |
726f6388 JA |
886 | |
887 | /* Special case. If TEXT consists of nothing, then the whole list is | |
888 | what is desired. */ | |
ccc6cda3 | 889 | if (*text == '\0') |
726f6388 | 890 | { |
7117c2d2 | 891 | result = strvec_create (1 + hostname_list_length); |
726f6388 JA |
892 | for (i = 0; i < hostname_list_length; i++) |
893 | result[i] = hostname_list[i]; | |
894 | result[i] = (char *)NULL; | |
895 | return (result); | |
896 | } | |
897 | ||
898 | /* Scan until found, or failure. */ | |
ccc6cda3 JA |
899 | len = strlen (text); |
900 | result = (char **)NULL; | |
901 | for (i = nmatch = rsize = 0; i < hostname_list_length; i++) | |
726f6388 | 902 | { |
ccc6cda3 | 903 | if (STREQN (text, hostname_list[i], len) == 0) |
28ef6c31 | 904 | continue; |
726f6388 | 905 | |
ccc6cda3 | 906 | /* OK, it matches. Add it to the list. */ |
bc4cd23c | 907 | if (nmatch >= (rsize - 1)) |
726f6388 | 908 | { |
ccc6cda3 | 909 | rsize = (rsize + 16) - (rsize % 16); |
7117c2d2 | 910 | result = strvec_resize (result, rsize); |
726f6388 JA |
911 | } |
912 | ||
ccc6cda3 | 913 | result[nmatch++] = hostname_list[i]; |
726f6388 | 914 | } |
ccc6cda3 JA |
915 | if (nmatch) |
916 | result[nmatch] = (char *)NULL; | |
917 | return (result); | |
726f6388 JA |
918 | } |
919 | ||
726f6388 JA |
920 | /* This vi mode command causes VI_EDIT_COMMAND to be run on the current |
921 | command being entered (if no explicit argument is given), otherwise on | |
922 | a command from the history file. */ | |
923 | ||
b80f6443 JA |
924 | #define VI_EDIT_COMMAND "fc -e \"${VISUAL:-${EDITOR:-vi}}\"" |
925 | #define EMACS_EDIT_COMMAND "fc -e \"${VISUAL:-${EDITOR:-emacs}}\"" | |
95732b49 | 926 | #define POSIX_VI_EDIT_COMMAND "fc -e vi" |
726f6388 | 927 | |
28ef6c31 | 928 | static int |
7117c2d2 JA |
929 | edit_and_execute_command (count, c, editing_mode, edit_command) |
930 | int count, c, editing_mode; | |
931 | char *edit_command; | |
726f6388 | 932 | { |
3185942a | 933 | char *command, *metaval; |
495aee44 CR |
934 | int r, rrs, metaflag; |
935 | sh_parser_state_t ps; | |
f73dda09 JA |
936 | |
937 | rrs = rl_readline_state; | |
495aee44 | 938 | saved_command_line_count = current_command_line_count; |
726f6388 JA |
939 | |
940 | /* Accept the current line. */ | |
b72432fd | 941 | rl_newline (1, c); |
726f6388 JA |
942 | |
943 | if (rl_explicit_arg) | |
944 | { | |
7117c2d2 JA |
945 | command = (char *)xmalloc (strlen (edit_command) + 8); |
946 | sprintf (command, "%s %d", edit_command, count); | |
726f6388 JA |
947 | } |
948 | else | |
949 | { | |
950 | /* Take the command we were just editing, add it to the history file, | |
951 | then call fc to operate on it. We have to add a dummy command to | |
952 | the end of the history because fc ignores the last command (assumes | |
953 | it's supposed to deal with the command before the `fc'). */ | |
495aee44 CR |
954 | /* This breaks down when using command-oriented history and are not |
955 | finished with the command, so we should not ignore the last command */ | |
726f6388 | 956 | using_history (); |
8b6524c4 CR |
957 | current_command_line_count++; /* for rl_newline above */ |
958 | bash_add_history (rl_line_buffer); | |
ac50fbac | 959 | current_command_line_count = 0; /* for dummy history entry */ |
d166f048 | 960 | bash_add_history (""); |
726f6388 JA |
961 | history_lines_this_session++; |
962 | using_history (); | |
7117c2d2 | 963 | command = savestring (edit_command); |
726f6388 | 964 | } |
7117c2d2 | 965 | |
3185942a JA |
966 | metaval = rl_variable_value ("input-meta"); |
967 | metaflag = RL_BOOLEAN_VARIABLE_VALUE (metaval); | |
968 | ||
3185942a JA |
969 | if (rl_deprep_term_function) |
970 | (*rl_deprep_term_function) (); | |
8868edaf | 971 | rl_clear_signals (); |
495aee44 | 972 | save_parser_state (&ps); |
7117c2d2 | 973 | r = parse_and_execute (command, (editing_mode == VI_EDITING_MODE) ? "v" : "C-xC-e", SEVAL_NOHIST); |
495aee44 | 974 | restore_parser_state (&ps); |
8868edaf CR |
975 | |
976 | /* if some kind of reset_parser was called, undo it. */ | |
977 | reset_readahead_token (); | |
978 | ||
3185942a JA |
979 | if (rl_prep_term_function) |
980 | (*rl_prep_term_function) (metaflag); | |
8868edaf | 981 | rl_set_signals (); |
f73dda09 | 982 | |
495aee44 | 983 | current_command_line_count = saved_command_line_count; |
f73dda09 JA |
984 | |
985 | /* Now erase the contents of the current line and undo the effects of the | |
986 | rl_accept_line() above. We don't even want to make the text we just | |
987 | executed available for undoing. */ | |
ccc6cda3 | 988 | rl_line_buffer[0] = '\0'; /* XXX */ |
f73dda09 JA |
989 | rl_point = rl_end = 0; |
990 | rl_done = 0; | |
991 | rl_readline_state = rrs; | |
992 | ||
d233b485 CR |
993 | #if defined (VI_MODE) |
994 | if (editing_mode == VI_EDITING_MODE) | |
995 | rl_vi_insertion_mode (1, c); | |
996 | #endif | |
997 | ||
f73dda09 | 998 | rl_forced_update_display (); |
28ef6c31 JA |
999 | |
1000 | return r; | |
726f6388 | 1001 | } |
7117c2d2 JA |
1002 | |
1003 | #if defined (VI_MODE) | |
1004 | static int | |
1005 | vi_edit_and_execute_command (count, c) | |
1006 | int count, c; | |
1007 | { | |
95732b49 JA |
1008 | if (posixly_correct) |
1009 | return (edit_and_execute_command (count, c, VI_EDITING_MODE, POSIX_VI_EDIT_COMMAND)); | |
1010 | else | |
1011 | return (edit_and_execute_command (count, c, VI_EDITING_MODE, VI_EDIT_COMMAND)); | |
7117c2d2 | 1012 | } |
726f6388 JA |
1013 | #endif /* VI_MODE */ |
1014 | ||
7117c2d2 JA |
1015 | static int |
1016 | emacs_edit_and_execute_command (count, c) | |
1017 | int count, c; | |
1018 | { | |
1019 | return (edit_and_execute_command (count, c, EMACS_EDITING_MODE, EMACS_EDIT_COMMAND)); | |
1020 | } | |
1021 | ||
ccc6cda3 JA |
1022 | #if defined (ALIAS) |
1023 | static int | |
1024 | posix_edit_macros (count, key) | |
1025 | int count, key; | |
1026 | { | |
1027 | int c; | |
1028 | char alias_name[3], *alias_value, *macro; | |
1029 | ||
1030 | c = rl_read_key (); | |
1031 | alias_name[0] = '_'; | |
1032 | alias_name[1] = c; | |
1033 | alias_name[2] = '\0'; | |
1034 | ||
1035 | alias_value = get_alias_value (alias_name); | |
1036 | if (alias_value && *alias_value) | |
1037 | { | |
1038 | macro = savestring (alias_value); | |
1039 | rl_push_macro_input (macro); | |
1040 | } | |
1041 | return 0; | |
1042 | } | |
1043 | #endif | |
1044 | ||
3185942a JA |
1045 | /* Bindable commands that move `shell-words': that is, sequences of |
1046 | non-unquoted-metacharacters. */ | |
1047 | ||
1048 | #define WORDDELIM(c) (shellmeta(c) || shellblank(c)) | |
1049 | ||
1050 | static int | |
1051 | bash_forward_shellword (count, key) | |
1052 | int count, key; | |
1053 | { | |
1054 | size_t slen; | |
d233b485 | 1055 | int c, p; |
3185942a JA |
1056 | DECLARE_MBSTATE; |
1057 | ||
1058 | if (count < 0) | |
1059 | return (bash_backward_shellword (-count, key)); | |
1060 | ||
1061 | /* The tricky part of this is deciding whether or not the first character | |
1062 | we're on is an unquoted metacharacter. Not completely handled yet. */ | |
1063 | /* XXX - need to test this stuff with backslash-escaped shell | |
1064 | metacharacters and unclosed single- and double-quoted strings. */ | |
1065 | ||
1066 | p = rl_point; | |
1067 | slen = rl_end; | |
1068 | ||
1069 | while (count) | |
1070 | { | |
1071 | if (p == rl_end) | |
1072 | { | |
1073 | rl_point = rl_end; | |
1074 | return 0; | |
1075 | } | |
1076 | ||
495aee44 CR |
1077 | /* Are we in a quoted string? If we are, move to the end of the quoted |
1078 | string and continue the outer loop. We only want quoted strings, not | |
1079 | backslash-escaped characters, but char_is_quoted doesn't | |
1080 | differentiate. */ | |
1081 | if (char_is_quoted (rl_line_buffer, p) && p > 0 && rl_line_buffer[p-1] != '\\') | |
1082 | { | |
1083 | do | |
1084 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1085 | while (p < rl_end && char_is_quoted (rl_line_buffer, p)); | |
1086 | count--; | |
1087 | continue; | |
1088 | } | |
1089 | ||
1090 | /* Rest of code assumes we are not in a quoted string. */ | |
3185942a JA |
1091 | /* Move forward until we hit a non-metacharacter. */ |
1092 | while (p < rl_end && (c = rl_line_buffer[p]) && WORDDELIM (c)) | |
1093 | { | |
1094 | switch (c) | |
1095 | { | |
1096 | default: | |
1097 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1098 | continue; /* straight back to loop, don't increment p */ | |
1099 | case '\\': | |
1100 | if (p < rl_end && rl_line_buffer[p]) | |
1101 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1102 | break; | |
1103 | case '\'': | |
1104 | p = skip_to_delim (rl_line_buffer, ++p, "'", SD_NOJMP); | |
1105 | break; | |
1106 | case '"': | |
1107 | p = skip_to_delim (rl_line_buffer, ++p, "\"", SD_NOJMP); | |
1108 | break; | |
1109 | } | |
1110 | ||
1111 | if (p < rl_end) | |
1112 | p++; | |
1113 | } | |
1114 | ||
1115 | if (rl_line_buffer[p] == 0 || p == rl_end) | |
1116 | { | |
1117 | rl_point = rl_end; | |
1118 | rl_ding (); | |
1119 | return 0; | |
1120 | } | |
1121 | ||
1122 | /* Now move forward until we hit a non-quoted metacharacter or EOL */ | |
1123 | while (p < rl_end && (c = rl_line_buffer[p]) && WORDDELIM (c) == 0) | |
1124 | { | |
1125 | switch (c) | |
1126 | { | |
1127 | default: | |
1128 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1129 | continue; /* straight back to loop, don't increment p */ | |
1130 | case '\\': | |
1131 | if (p < rl_end && rl_line_buffer[p]) | |
1132 | ADVANCE_CHAR (rl_line_buffer, slen, p); | |
1133 | break; | |
1134 | case '\'': | |
1135 | p = skip_to_delim (rl_line_buffer, ++p, "'", SD_NOJMP); | |
1136 | break; | |
1137 | case '"': | |
1138 | p = skip_to_delim (rl_line_buffer, ++p, "\"", SD_NOJMP); | |
1139 | break; | |
1140 | } | |
1141 | ||
1142 | if (p < rl_end) | |
1143 | p++; | |
1144 | } | |
1145 | ||
1146 | if (p == rl_end || rl_line_buffer[p] == 0) | |
1147 | { | |
1148 | rl_point = rl_end; | |
1149 | return (0); | |
1150 | } | |
1151 | ||
1152 | count--; | |
1153 | } | |
1154 | ||
1155 | rl_point = p; | |
1156 | return (0); | |
1157 | } | |
1158 | ||
1159 | static int | |
1160 | bash_backward_shellword (count, key) | |
1161 | int count, key; | |
1162 | { | |
1163 | size_t slen; | |
8868edaf | 1164 | int c, p, prev_p; |
3185942a | 1165 | DECLARE_MBSTATE; |
d233b485 | 1166 | |
3185942a JA |
1167 | if (count < 0) |
1168 | return (bash_forward_shellword (-count, key)); | |
1169 | ||
1170 | p = rl_point; | |
1171 | slen = rl_end; | |
d233b485 | 1172 | |
3185942a JA |
1173 | while (count) |
1174 | { | |
1175 | if (p == 0) | |
1176 | { | |
1177 | rl_point = 0; | |
1178 | return 0; | |
1179 | } | |
1180 | ||
8868edaf CR |
1181 | /* Move backward until we hit a non-metacharacter. We want to deal |
1182 | with the characters before point, so we move off a word if we're | |
1183 | at its first character. */ | |
1184 | BACKUP_CHAR (rl_line_buffer, slen, p); | |
3185942a JA |
1185 | while (p > 0) |
1186 | { | |
1187 | c = rl_line_buffer[p]; | |
d233b485 CR |
1188 | if (WORDDELIM (c) == 0 || char_is_quoted (rl_line_buffer, p)) |
1189 | break; | |
1190 | BACKUP_CHAR (rl_line_buffer, slen, p); | |
3185942a JA |
1191 | } |
1192 | ||
1193 | if (p == 0) | |
1194 | { | |
1195 | rl_point = 0; | |
1196 | return 0; | |
1197 | } | |
1198 | ||
8868edaf CR |
1199 | /* Now move backward until we hit a metacharacter or BOL. Leave point |
1200 | at the start of the shellword or at BOL. */ | |
1201 | prev_p = p; | |
3185942a JA |
1202 | while (p > 0) |
1203 | { | |
1204 | c = rl_line_buffer[p]; | |
1205 | if (WORDDELIM (c) && char_is_quoted (rl_line_buffer, p) == 0) | |
8868edaf CR |
1206 | { |
1207 | p = prev_p; | |
1208 | break; | |
1209 | } | |
1210 | prev_p = p; | |
3185942a JA |
1211 | BACKUP_CHAR (rl_line_buffer, slen, p); |
1212 | } | |
1213 | ||
1214 | count--; | |
1215 | } | |
1216 | ||
1217 | rl_point = p; | |
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | static int | |
1222 | bash_kill_shellword (count, key) | |
1223 | int count, key; | |
1224 | { | |
1225 | int p; | |
1226 | ||
1227 | if (count < 0) | |
1228 | return (bash_backward_kill_shellword (-count, key)); | |
1229 | ||
1230 | p = rl_point; | |
1231 | bash_forward_shellword (count, key); | |
1232 | ||
1233 | if (rl_point != p) | |
1234 | rl_kill_text (p, rl_point); | |
1235 | ||
1236 | rl_point = p; | |
8868edaf | 1237 | if (rl_editing_mode == EMACS_EDITING_MODE) /* 1 == emacs_mode */ |
3185942a JA |
1238 | rl_mark = rl_point; |
1239 | ||
1240 | return 0; | |
1241 | } | |
1242 | ||
1243 | static int | |
1244 | bash_backward_kill_shellword (count, key) | |
1245 | int count, key; | |
1246 | { | |
1247 | int p; | |
1248 | ||
1249 | if (count < 0) | |
1250 | return (bash_kill_shellword (-count, key)); | |
1251 | ||
1252 | p = rl_point; | |
1253 | bash_backward_shellword (count, key); | |
1254 | ||
1255 | if (rl_point != p) | |
1256 | rl_kill_text (p, rl_point); | |
1257 | ||
8868edaf | 1258 | if (rl_editing_mode == EMACS_EDITING_MODE) /* 1 == emacs_mode */ |
3185942a JA |
1259 | rl_mark = rl_point; |
1260 | ||
1261 | return 0; | |
1262 | } | |
1263 | ||
8868edaf CR |
1264 | static int |
1265 | bash_transpose_shellwords (count, key) | |
1266 | int count, key; | |
1267 | { | |
1268 | char *word1, *word2; | |
1269 | int w1_beg, w1_end, w2_beg, w2_end; | |
1270 | int orig_point = rl_point; | |
1271 | ||
1272 | if (count == 0) | |
1273 | return 0; | |
1274 | ||
1275 | /* Find the two shell words. */ | |
1276 | bash_forward_shellword (count, key); | |
1277 | w2_end = rl_point; | |
1278 | bash_backward_shellword (1, key); | |
1279 | w2_beg = rl_point; | |
1280 | bash_backward_shellword (count, key); | |
1281 | w1_beg = rl_point; | |
1282 | bash_forward_shellword (1, key); | |
1283 | w1_end = rl_point; | |
1284 | ||
1285 | /* check that there really are two words. */ | |
1286 | if ((w1_beg == w2_beg) || (w2_beg < w1_end)) | |
1287 | { | |
1288 | rl_ding (); | |
1289 | rl_point = orig_point; | |
1290 | return 1; | |
1291 | } | |
1292 | ||
1293 | /* Get the text of the words. */ | |
1294 | word1 = rl_copy_text (w1_beg, w1_end); | |
1295 | word2 = rl_copy_text (w2_beg, w2_end); | |
1296 | ||
1297 | /* We are about to do many insertions and deletions. Remember them | |
1298 | as one operation. */ | |
1299 | rl_begin_undo_group (); | |
1300 | ||
1301 | /* Do the stuff at word2 first, so that we don't have to worry | |
1302 | about word1 moving. */ | |
1303 | rl_point = w2_beg; | |
1304 | rl_delete_text (w2_beg, w2_end); | |
1305 | rl_insert_text (word1); | |
1306 | ||
1307 | rl_point = w1_beg; | |
1308 | rl_delete_text (w1_beg, w1_end); | |
1309 | rl_insert_text (word2); | |
1310 | ||
1311 | /* This is exactly correct since the text before this point has not | |
1312 | changed in length. */ | |
1313 | rl_point = w2_end; | |
1314 | ||
1315 | /* I think that does it. */ | |
1316 | rl_end_undo_group (); | |
1317 | xfree (word1); | |
1318 | xfree (word2); | |
1319 | ||
1320 | return 0; | |
1321 | } | |
3185942a | 1322 | |
726f6388 JA |
1323 | /* **************************************************************** */ |
1324 | /* */ | |
1325 | /* How To Do Shell Completion */ | |
1326 | /* */ | |
1327 | /* **************************************************************** */ | |
1328 | ||
bb70624e | 1329 | #define COMMAND_SEPARATORS ";|&{(`" |
b80f6443 | 1330 | /* )} */ |
ac50fbac CR |
1331 | #define COMMAND_SEPARATORS_PLUS_WS ";|&{(` \t" |
1332 | /* )} */ | |
bb70624e | 1333 | |
ac50fbac CR |
1334 | /* check for redirections and other character combinations that are not |
1335 | command separators */ | |
bb70624e JA |
1336 | static int |
1337 | check_redir (ti) | |
1338 | int ti; | |
1339 | { | |
1340 | register int this_char, prev_char; | |
1341 | ||
1342 | /* Handle the two character tokens `>&', `<&', and `>|'. | |
1343 | We are not in a command position after one of these. */ | |
1344 | this_char = rl_line_buffer[ti]; | |
a0c0a00f | 1345 | prev_char = (ti > 0) ? rl_line_buffer[ti - 1] : 0; |
bb70624e JA |
1346 | |
1347 | if ((this_char == '&' && (prev_char == '<' || prev_char == '>')) || | |
1348 | (this_char == '|' && prev_char == '>')) | |
1349 | return (1); | |
ac50fbac CR |
1350 | else if (this_char == '{' && prev_char == '$') /*}*/ |
1351 | return (1); | |
1352 | #if 0 /* Not yet */ | |
1353 | else if (this_char == '(' && prev_char == '$') /*)*/ | |
1354 | return (1); | |
1355 | else if (this_char == '(' && prev_char == '<') /*)*/ | |
1356 | return (1); | |
1357 | #if defined (EXTENDED_GLOB) | |
1358 | else if (extended_glob && this_char == '(' && prev_char == '!') /*)*/ | |
1359 | return (1); | |
1360 | #endif | |
1361 | #endif | |
1362 | else if (char_is_quoted (rl_line_buffer, ti)) | |
bb70624e JA |
1363 | return (1); |
1364 | return (0); | |
1365 | } | |
1366 | ||
1367 | #if defined (PROGRAMMABLE_COMPLETION) | |
f73dda09 JA |
1368 | /* |
1369 | * XXX - because of the <= start test, and setting os = s+1, this can | |
1370 | * potentially return os > start. This is probably not what we want to | |
1371 | * happen, but fix later after 2.05a-release. | |
1372 | */ | |
bb70624e JA |
1373 | static int |
1374 | find_cmd_start (start) | |
1375 | int start; | |
1376 | { | |
a0c0a00f | 1377 | register int s, os, ns; |
bb70624e JA |
1378 | |
1379 | os = 0; | |
ac50fbac CR |
1380 | /* Flags == SD_NOJMP only because we want to skip over command substitutions |
1381 | in assignment statements. Have to test whether this affects `standalone' | |
1382 | command substitutions as individual words. */ | |
a0c0a00f | 1383 | while (((s = skip_to_delim (rl_line_buffer, os, COMMAND_SEPARATORS, SD_NOJMP|SD_COMPLETE/*|SD_NOSKIPCMD*/)) <= start) && |
bb70624e | 1384 | rl_line_buffer[s]) |
a0c0a00f CR |
1385 | { |
1386 | /* Handle >| token crudely; treat as > not | */ | |
8868edaf | 1387 | if (s > 0 && rl_line_buffer[s] == '|' && rl_line_buffer[s-1] == '>') |
a0c0a00f CR |
1388 | { |
1389 | ns = skip_to_delim (rl_line_buffer, s+1, COMMAND_SEPARATORS, SD_NOJMP|SD_COMPLETE/*|SD_NOSKIPCMD*/); | |
1390 | if (ns > start || rl_line_buffer[ns] == 0) | |
1391 | return os; | |
1392 | os = ns+1; | |
1393 | continue; | |
1394 | } | |
8868edaf CR |
1395 | /* The only reserved word in COMMAND_SEPARATORS is `{', so handle that |
1396 | specially, making sure it's in a spot acceptable for reserved words */ | |
1397 | if (s >= os && rl_line_buffer[s] == '{') | |
1398 | { | |
1399 | int pc, nc; /* index of previous non-whitespace, next char */ | |
1400 | for (pc = (s > os) ? s - 1 : os; pc > os && whitespace(rl_line_buffer[pc]); pc--) | |
1401 | ; | |
1402 | nc = rl_line_buffer[s+1]; | |
1403 | /* must be preceded by a command separator or be the first non- | |
1404 | whitespace character since the last command separator, and | |
1405 | followed by a shell break character (not another `{') to be a reserved word. */ | |
1406 | if ((pc > os && (rl_line_buffer[s-1] == '{' || strchr (COMMAND_SEPARATORS, rl_line_buffer[pc]) == 0)) || | |
1407 | (shellbreak(nc) == 0)) /* }} */ | |
1408 | { | |
1409 | /* Not a reserved word, look for another delim */ | |
1410 | ns = skip_to_delim (rl_line_buffer, s+1, COMMAND_SEPARATORS, SD_NOJMP|SD_COMPLETE/*|SD_NOSKIPCMD*/); | |
1411 | if (ns > start || rl_line_buffer[ns] == 0) | |
1412 | return os; | |
1413 | os = ns+1; | |
1414 | continue; | |
1415 | } | |
1416 | } | |
a0c0a00f CR |
1417 | os = s+1; |
1418 | } | |
bb70624e JA |
1419 | return os; |
1420 | } | |
1421 | ||
1422 | static int | |
1423 | find_cmd_end (end) | |
1424 | int end; | |
1425 | { | |
1426 | register int e; | |
1427 | ||
a0c0a00f | 1428 | e = skip_to_delim (rl_line_buffer, end, COMMAND_SEPARATORS, SD_NOJMP|SD_COMPLETE); |
bb70624e JA |
1429 | return e; |
1430 | } | |
1431 | ||
1432 | static char * | |
ac50fbac | 1433 | find_cmd_name (start, sp, ep) |
bb70624e | 1434 | int start; |
ac50fbac | 1435 | int *sp, *ep; |
bb70624e JA |
1436 | { |
1437 | char *name; | |
1438 | register int s, e; | |
1439 | ||
1440 | for (s = start; whitespace (rl_line_buffer[s]); s++) | |
1441 | ; | |
1442 | ||
1443 | /* skip until a shell break character */ | |
a0c0a00f | 1444 | e = skip_to_delim (rl_line_buffer, s, "()<>;&| \t\n", SD_NOJMP|SD_COMPLETE); |
bb70624e JA |
1445 | |
1446 | name = substring (rl_line_buffer, s, e); | |
1447 | ||
ac50fbac CR |
1448 | if (sp) |
1449 | *sp = s; | |
1450 | if (ep) | |
1451 | *ep = e; | |
1452 | ||
bb70624e JA |
1453 | return (name); |
1454 | } | |
1455 | ||
1456 | static char * | |
1457 | prog_complete_return (text, matchnum) | |
f73dda09 | 1458 | const char *text; |
bb70624e JA |
1459 | int matchnum; |
1460 | { | |
1461 | static int ind; | |
1462 | ||
1463 | if (matchnum == 0) | |
1464 | ind = 0; | |
1465 | ||
1466 | if (prog_complete_matches == 0 || prog_complete_matches[ind] == 0) | |
1467 | return (char *)NULL; | |
1468 | return (prog_complete_matches[ind++]); | |
1469 | } | |
1470 | ||
1471 | #endif /* PROGRAMMABLE_COMPLETION */ | |
1472 | ||
a0c0a00f CR |
1473 | /* Try and catch completion attempts that are syntax errors or otherwise |
1474 | invalid. */ | |
1475 | static int | |
1476 | invalid_completion (text, ind) | |
1477 | const char *text; | |
1478 | int ind; | |
1479 | { | |
1480 | int pind; | |
1481 | ||
1482 | /* If we don't catch these here, the next clause will */ | |
1483 | if (ind > 0 && rl_line_buffer[ind] == '(' && /*)*/ | |
1484 | member (rl_line_buffer[ind-1], "$<>")) | |
1485 | return 0; | |
1486 | ||
1487 | pind = ind - 1; | |
1488 | while (pind > 0 && whitespace (rl_line_buffer[pind])) | |
1489 | pind--; | |
1490 | /* If we have only whitespace preceding a paren, it's valid */ | |
1491 | if (ind >= 0 && pind <= 0 && rl_line_buffer[ind] == '(') /*)*/ | |
1492 | return 0; | |
1493 | /* Flag the invalid completions, which are mostly syntax errors */ | |
1494 | if (ind > 0 && rl_line_buffer[ind] == '(' && /*)*/ | |
1495 | member (rl_line_buffer[pind], COMMAND_SEPARATORS) == 0) | |
1496 | return 1; | |
1497 | ||
1498 | return 0; | |
1499 | } | |
1500 | ||
726f6388 JA |
1501 | /* Do some completion on TEXT. The indices of TEXT in RL_LINE_BUFFER are |
1502 | at START and END. Return an array of matches, or NULL if none. */ | |
1503 | static char ** | |
1504 | attempt_shell_completion (text, start, end) | |
28ef6c31 | 1505 | const char *text; |
726f6388 JA |
1506 | int start, end; |
1507 | { | |
d233b485 | 1508 | int in_command_position, ti, qc, dflags; |
ccc6cda3 | 1509 | char **matches, *command_separator_chars; |
ac50fbac CR |
1510 | #if defined (PROGRAMMABLE_COMPLETION) |
1511 | int have_progcomps, was_assignment; | |
d233b485 | 1512 | COMPSPEC *iw_compspec; |
ac50fbac | 1513 | #endif |
726f6388 | 1514 | |
bb70624e | 1515 | command_separator_chars = COMMAND_SEPARATORS; |
ccc6cda3 | 1516 | matches = (char **)NULL; |
28ef6c31 | 1517 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 | 1518 | |
16b2d7f4 | 1519 | rl_filename_quote_characters = default_filename_quote_characters; |
ac50fbac | 1520 | set_filename_bstab (rl_filename_quote_characters); |
16b2d7f4 | 1521 | set_directory_hook (); |
ac50fbac | 1522 | rl_filename_stat_hook = bash_filename_stat_hook; |
16b2d7f4 | 1523 | |
a0c0a00f CR |
1524 | rl_sort_completion_matches = 1; /* sort by default */ |
1525 | ||
726f6388 JA |
1526 | /* Determine if this could be a command word. It is if it appears at |
1527 | the start of the line (ignoring preceding whitespace), or if it | |
1528 | appears after a character that separates commands. It cannot be a | |
1529 | command word if we aren't at the top-level prompt. */ | |
1530 | ti = start - 1; | |
d233b485 | 1531 | qc = -1; |
726f6388 JA |
1532 | |
1533 | while ((ti > -1) && (whitespace (rl_line_buffer[ti]))) | |
1534 | ti--; | |
1535 | ||
bb70624e JA |
1536 | #if 1 |
1537 | /* If this is an open quote, maybe we're trying to complete a quoted | |
1538 | command name. */ | |
b80f6443 | 1539 | if (ti >= 0 && (rl_line_buffer[ti] == '"' || rl_line_buffer[ti] == '\'')) |
bb70624e JA |
1540 | { |
1541 | qc = rl_line_buffer[ti]; | |
d233b485 | 1542 | ti--; |
bb70624e | 1543 | while (ti > -1 && (whitespace (rl_line_buffer[ti]))) |
28ef6c31 | 1544 | ti--; |
bb70624e JA |
1545 | } |
1546 | #endif | |
1547 | ||
726f6388 JA |
1548 | in_command_position = 0; |
1549 | if (ti < 0) | |
1550 | { | |
1551 | /* Only do command completion at the start of a line when we | |
28ef6c31 | 1552 | are prompting at the top level. */ |
726f6388 JA |
1553 | if (current_prompt_string == ps1_prompt) |
1554 | in_command_position++; | |
ac50fbac CR |
1555 | else if (parser_in_command_position ()) |
1556 | in_command_position++; | |
726f6388 JA |
1557 | } |
1558 | else if (member (rl_line_buffer[ti], command_separator_chars)) | |
1559 | { | |
726f6388 JA |
1560 | in_command_position++; |
1561 | ||
bb70624e | 1562 | if (check_redir (ti) == 1) |
28ef6c31 | 1563 | in_command_position = 0; |
726f6388 JA |
1564 | } |
1565 | else | |
1566 | { | |
1567 | /* This still could be in command position. It is possible | |
1568 | that all of the previous words on the line are variable | |
1569 | assignments. */ | |
1570 | } | |
1571 | ||
a0c0a00f CR |
1572 | if (in_command_position && invalid_completion (text, ti)) |
1573 | { | |
1574 | rl_attempted_completion_over = 1; | |
1575 | return ((char **)NULL); | |
1576 | } | |
1577 | ||
d166f048 JA |
1578 | /* Check that we haven't incorrectly flagged a closed command substitution |
1579 | as indicating we're in a command position. */ | |
e8ce775d | 1580 | if (in_command_position && ti >= 0 && rl_line_buffer[ti] == '`' && |
bb70624e | 1581 | *text != '`' && unclosed_pair (rl_line_buffer, end, "`") == 0) |
d166f048 JA |
1582 | in_command_position = 0; |
1583 | ||
1584 | /* Special handling for command substitution. If *TEXT is a backquote, | |
1585 | it can be the start or end of an old-style command substitution, or | |
1586 | unmatched. If it's unmatched, both calls to unclosed_pair will | |
0001803f CR |
1587 | succeed. Don't bother if readline found a single quote and we are |
1588 | completing on the substring. */ | |
1589 | if (*text == '`' && rl_completion_quote_character != '\'' && | |
bb70624e JA |
1590 | (in_command_position || (unclosed_pair (rl_line_buffer, start, "`") && |
1591 | unclosed_pair (rl_line_buffer, end, "`")))) | |
28ef6c31 | 1592 | matches = rl_completion_matches (text, command_subst_completion_function); |
726f6388 | 1593 | |
bb70624e JA |
1594 | #if defined (PROGRAMMABLE_COMPLETION) |
1595 | /* Attempt programmable completion. */ | |
ac50fbac | 1596 | have_progcomps = prog_completion_enabled && (progcomp_size () > 0); |
d233b485 CR |
1597 | iw_compspec = progcomp_search (INITIALWORD); |
1598 | if (matches == 0 && | |
1599 | (in_command_position == 0 || text[0] == '\0' || (in_command_position && iw_compspec)) && | |
3185942a | 1600 | current_prompt_string == ps1_prompt) |
bb70624e | 1601 | { |
ac50fbac | 1602 | int s, e, s1, e1, os, foundcs; |
bb70624e JA |
1603 | char *n; |
1604 | ||
1605 | /* XXX - don't free the members */ | |
1606 | if (prog_complete_matches) | |
1607 | free (prog_complete_matches); | |
1608 | prog_complete_matches = (char **)NULL; | |
1609 | ||
ac50fbac CR |
1610 | os = start; |
1611 | n = 0; | |
2b3ca7e0 | 1612 | was_assignment = 0; |
ac50fbac | 1613 | s = find_cmd_start (os); |
bb70624e | 1614 | e = find_cmd_end (end); |
ac50fbac CR |
1615 | do |
1616 | { | |
2b3ca7e0 CR |
1617 | /* Don't read past the end of rl_line_buffer */ |
1618 | if (s > rl_end) | |
1619 | { | |
1620 | s1 = s = e1; | |
1621 | break; | |
1622 | } | |
1623 | /* Or past point if point is within an assignment statement */ | |
1624 | else if (was_assignment && s > rl_point) | |
1625 | { | |
1626 | s1 = s = e1; | |
1627 | break; | |
1628 | } | |
ac50fbac CR |
1629 | /* Skip over assignment statements preceding a command name. If we |
1630 | don't find a command name at all, we can perform command name | |
1631 | completion. If we find a partial command name, we should perform | |
1632 | command name completion on it. */ | |
1633 | FREE (n); | |
1634 | n = find_cmd_name (s, &s1, &e1); | |
1635 | s = e1 + 1; | |
1636 | } | |
1637 | while (was_assignment = assignment (n, 0)); | |
1638 | s = s1; /* reset to index where name begins */ | |
1639 | ||
1640 | /* s == index of where command name begins (reset above) | |
1641 | e == end of current command, may be end of line | |
1642 | s1 = index of where command name begins | |
1643 | e1 == index of where command name ends | |
1644 | start == index of where word to be completed begins | |
1645 | end == index of where word to be completed ends | |
1646 | if (s == start) we are doing command word completion for sure | |
1647 | if (e1 == end) we are at the end of the command name and completing it */ | |
1648 | if (start == 0 && end == 0 && e != 0 && text[0] == '\0') /* beginning of non-empty line */ | |
1649 | foundcs = 0; | |
1650 | else if (start == end && start == s1 && e != 0 && e1 > end) /* beginning of command name, leading whitespace */ | |
1651 | foundcs = 0; | |
1652 | else if (e == 0 && e == s && text[0] == '\0' && have_progcomps) /* beginning of empty line */ | |
d233b485 | 1653 | prog_complete_matches = programmable_completions (EMPTYCMD, text, s, e, &foundcs); |
ac50fbac CR |
1654 | else if (start == end && text[0] == '\0' && s1 > start && whitespace (rl_line_buffer[start])) |
1655 | foundcs = 0; /* whitespace before command name */ | |
1656 | else if (e > s && was_assignment == 0 && e1 == end && rl_line_buffer[e] == 0 && whitespace (rl_line_buffer[e-1]) == 0) | |
1657 | { | |
1658 | /* not assignment statement, but still want to perform command | |
1659 | completion if we are composing command word. */ | |
1660 | foundcs = 0; | |
1661 | in_command_position = s == start && STREQ (n, text); /* XXX */ | |
1662 | } | |
1663 | else if (e > s && was_assignment == 0 && have_progcomps) | |
1664 | { | |
1665 | prog_complete_matches = programmable_completions (n, text, s, e, &foundcs); | |
1666 | /* command completion if programmable completion fails */ | |
d233b485 CR |
1667 | /* If we have a completion for the initial word, we can prefer that */ |
1668 | in_command_position = s == start && (iw_compspec || STREQ (n, text)); /* XXX */ | |
1669 | if (iw_compspec && in_command_position) | |
1670 | foundcs = 0; | |
ac50fbac | 1671 | } |
a0c0a00f CR |
1672 | /* empty command name following command separator */ |
1673 | else if (s >= e && n[0] == '\0' && text[0] == '\0' && start > 0 && | |
1674 | was_assignment == 0 && member (rl_line_buffer[start-1], COMMAND_SEPARATORS)) | |
1675 | { | |
1676 | foundcs = 0; | |
1677 | in_command_position = 1; | |
1678 | } | |
ac50fbac CR |
1679 | else if (s >= e && n[0] == '\0' && text[0] == '\0' && start > 0) |
1680 | { | |
d233b485 CR |
1681 | foundcs = 0; /* empty command name following optional assignments */ |
1682 | in_command_position += was_assignment; | |
ac50fbac CR |
1683 | } |
1684 | else if (s == start && e == end && STREQ (n, text) && start > 0) | |
1685 | { | |
1686 | foundcs = 0; /* partial command name following assignments */ | |
1687 | in_command_position = 1; | |
1688 | } | |
f73dda09 JA |
1689 | else |
1690 | foundcs = 0; | |
d233b485 CR |
1691 | |
1692 | /* If we have defined a compspec for the initial (command) word, call | |
1693 | it and process the results like any other programmable completion. */ | |
1694 | if (in_command_position && have_progcomps && foundcs == 0 && iw_compspec) | |
1695 | prog_complete_matches = programmable_completions (INITIALWORD, text, s, e, &foundcs); | |
1696 | ||
bb70624e JA |
1697 | FREE (n); |
1698 | /* XXX - if we found a COMPSPEC for the command, just return whatever | |
1699 | the programmable completion code returns, and disable the default | |
28ef6c31 | 1700 | filename completion that readline will do unless the COPT_DEFAULT |
3185942a JA |
1701 | option has been set with the `-o default' option to complete or |
1702 | compopt. */ | |
bb70624e JA |
1703 | if (foundcs) |
1704 | { | |
3185942a | 1705 | pcomp_set_readline_variables (foundcs, 1); |
bb70624e JA |
1706 | /* Turn what the programmable completion code returns into what |
1707 | readline wants. I should have made compute_lcd_of_matches | |
1708 | external... */ | |
28ef6c31 JA |
1709 | matches = rl_completion_matches (text, prog_complete_return); |
1710 | if ((foundcs & COPT_DEFAULT) == 0) | |
1711 | rl_attempted_completion_over = 1; /* no default */ | |
b80f6443 JA |
1712 | if (matches || ((foundcs & COPT_BASHDEFAULT) == 0)) |
1713 | return (matches); | |
bb70624e JA |
1714 | } |
1715 | } | |
1716 | #endif | |
1717 | ||
b80f6443 | 1718 | if (matches == 0) |
0628567a JA |
1719 | { |
1720 | dflags = 0; | |
1721 | if (in_command_position) | |
1722 | dflags |= DEFCOMP_CMDPOS; | |
1723 | matches = bash_default_completion (text, start, end, qc, dflags); | |
1724 | } | |
b80f6443 JA |
1725 | |
1726 | return matches; | |
1727 | } | |
1728 | ||
1729 | char ** | |
0628567a | 1730 | bash_default_completion (text, start, end, qc, compflags) |
b80f6443 | 1731 | const char *text; |
0628567a | 1732 | int start, end, qc, compflags; |
b80f6443 | 1733 | { |
ac50fbac | 1734 | char **matches, *t; |
b80f6443 JA |
1735 | |
1736 | matches = (char **)NULL; | |
1737 | ||
bb70624e | 1738 | /* New posix-style command substitution or variable name? */ |
d233b485 | 1739 | if (*text == '$') |
bb70624e JA |
1740 | { |
1741 | if (qc != '\'' && text[1] == '(') /* ) */ | |
28ef6c31 | 1742 | matches = rl_completion_matches (text, command_subst_completion_function); |
bb70624e | 1743 | else |
ac50fbac CR |
1744 | { |
1745 | matches = rl_completion_matches (text, variable_completion_function); | |
a0c0a00f CR |
1746 | /* If a single match, see if it expands to a directory name and append |
1747 | a slash if it does. This requires us to expand the variable name, | |
1748 | so we don't want to display errors if the variable is unset. This | |
1749 | can happen with dynamic variables whose value has never been | |
1750 | requested. */ | |
ac50fbac CR |
1751 | if (matches && matches[0] && matches[1] == 0) |
1752 | { | |
1753 | t = savestring (matches[0]); | |
1754 | bash_filename_stat_hook (&t); | |
1755 | /* doesn't use test_for_directory because that performs tilde | |
1756 | expansion */ | |
1757 | if (file_isdir (t)) | |
1758 | rl_completion_append_character = '/'; | |
1759 | free (t); | |
1760 | } | |
1761 | } | |
bb70624e | 1762 | } |
726f6388 JA |
1763 | |
1764 | /* If the word starts in `~', and there is no slash in the word, then | |
1765 | try completing this word as a username. */ | |
495aee44 | 1766 | if (matches == 0 && *text == '~' && mbschr (text, '/') == 0) |
28ef6c31 | 1767 | matches = rl_completion_matches (text, rl_username_completion_function); |
726f6388 JA |
1768 | |
1769 | /* Another one. Why not? If the word starts in '@', then look through | |
1770 | the world of known hostnames for completion first. */ | |
495aee44 | 1771 | if (matches == 0 && perform_hostname_completion && *text == '@') |
28ef6c31 | 1772 | matches = rl_completion_matches (text, hostname_completion_function); |
726f6388 JA |
1773 | |
1774 | /* And last, (but not least) if this word is in a command position, then | |
1775 | complete over possible command names, including aliases, functions, | |
1776 | and command names. */ | |
0628567a | 1777 | if (matches == 0 && (compflags & DEFCOMP_CMDPOS)) |
726f6388 | 1778 | { |
0628567a JA |
1779 | /* If END == START and text[0] == 0, we are trying to complete an empty |
1780 | command word. */ | |
1781 | if (no_empty_command_completion && end == start && text[0] == '\0') | |
bb70624e JA |
1782 | { |
1783 | matches = (char **)NULL; | |
28ef6c31 | 1784 | rl_ignore_some_completions_function = bash_ignore_everything; |
bb70624e JA |
1785 | } |
1786 | else | |
1787 | { | |
b80f6443 JA |
1788 | #define CMD_IS_DIR(x) (absolute_pathname(x) == 0 && absolute_program(x) == 0 && *(x) != '~' && test_for_directory (x)) |
1789 | ||
95732b49 | 1790 | dot_in_path = 0; |
28ef6c31 | 1791 | matches = rl_completion_matches (text, command_word_completion_function); |
b80f6443 | 1792 | |
bb70624e JA |
1793 | /* If we are attempting command completion and nothing matches, we |
1794 | do not want readline to perform filename completion for us. We | |
1795 | still want to be able to complete partial pathnames, so set the | |
1796 | completion ignore function to something which will remove | |
1797 | filenames and leave directories in the match list. */ | |
1798 | if (matches == (char **)NULL) | |
28ef6c31 | 1799 | rl_ignore_some_completions_function = bash_ignore_filenames; |
95732b49 JA |
1800 | else if (matches[1] == 0 && CMD_IS_DIR(matches[0]) && dot_in_path == 0) |
1801 | /* If we found a single match, without looking in the current | |
1802 | directory (because it's not in $PATH), but the found name is | |
1803 | also a command in the current directory, suppress appending any | |
1804 | terminating character, since it's ambiguous. */ | |
1805 | { | |
1806 | rl_completion_suppress_append = 1; | |
1807 | rl_filename_completion_desired = 0; | |
1808 | } | |
b80f6443 | 1809 | else if (matches[0] && matches[1] && STREQ (matches[0], matches[1]) && CMD_IS_DIR (matches[0])) |
7117c2d2 JA |
1810 | /* There are multiple instances of the same match (duplicate |
1811 | completions haven't yet been removed). In this case, all of | |
1812 | the matches will be the same, and the duplicate removal code | |
95732b49 JA |
1813 | will distill them all down to one. We turn on |
1814 | rl_completion_suppress_append for the same reason as above. | |
7117c2d2 JA |
1815 | Remember: we only care if there's eventually a single unique |
1816 | completion. If there are multiple completions this won't | |
1817 | make a difference and the problem won't occur. */ | |
95732b49 JA |
1818 | { |
1819 | rl_completion_suppress_append = 1; | |
1820 | rl_filename_completion_desired = 0; | |
1821 | } | |
bb70624e | 1822 | } |
726f6388 JA |
1823 | } |
1824 | ||
ccc6cda3 JA |
1825 | /* This could be a globbing pattern, so try to expand it using pathname |
1826 | expansion. */ | |
4d2e3154 | 1827 | if (!matches && completion_glob_pattern ((char *)text)) |
e8ce775d | 1828 | { |
28ef6c31 | 1829 | matches = rl_completion_matches (text, glob_complete_word); |
e8ce775d JA |
1830 | /* A glob expression that matches more than one filename is problematic. |
1831 | If we match more than one filename, punt. */ | |
7117c2d2 | 1832 | if (matches && matches[1] && rl_completion_type == TAB) |
e8ce775d | 1833 | { |
7117c2d2 | 1834 | strvec_dispose (matches); |
e8ce775d JA |
1835 | matches = (char **)0; |
1836 | } | |
ac50fbac CR |
1837 | else if (matches && matches[1] && rl_completion_type == '!') |
1838 | { | |
1839 | rl_completion_suppress_append = 1; | |
1840 | rl_filename_completion_desired = 0; | |
1841 | } | |
e8ce775d | 1842 | } |
ccc6cda3 | 1843 | |
726f6388 JA |
1844 | return (matches); |
1845 | } | |
1846 | ||
ac50fbac CR |
1847 | static int |
1848 | bash_command_name_stat_hook (name) | |
1849 | char **name; | |
1850 | { | |
1851 | char *cname, *result; | |
1852 | ||
1853 | /* If it's not something we're going to look up in $PATH, just call the | |
1854 | normal filename stat hook. */ | |
1855 | if (absolute_program (*name)) | |
1856 | return (bash_filename_stat_hook (name)); | |
1857 | ||
1858 | cname = *name; | |
1859 | /* XXX - we could do something here with converting aliases, builtins, | |
1860 | and functions into something that came out as executable, but we don't. */ | |
1861 | result = search_for_command (cname, 0); | |
1862 | if (result) | |
1863 | { | |
1864 | *name = result; | |
1865 | return 1; | |
1866 | } | |
1867 | return 0; | |
1868 | } | |
1869 | ||
1870 | static int | |
1871 | executable_completion (filename, searching_path) | |
1872 | const char *filename; | |
1873 | int searching_path; | |
1874 | { | |
1875 | char *f; | |
1876 | int r; | |
1877 | ||
1878 | f = savestring (filename); | |
1879 | bash_directory_completion_hook (&f); | |
1880 | ||
1881 | r = searching_path ? executable_file (f) : executable_or_directory (f); | |
1882 | free (f); | |
1883 | return r; | |
1884 | } | |
1885 | ||
726f6388 JA |
1886 | /* This is the function to call when the word to complete is in a position |
1887 | where a command word can be found. It grovels $PATH, looking for commands | |
1888 | that match. It also scans aliases, function names, and the shell_builtin | |
1889 | table. */ | |
bb70624e | 1890 | char * |
726f6388 | 1891 | command_word_completion_function (hint_text, state) |
28ef6c31 | 1892 | const char *hint_text; |
726f6388 JA |
1893 | int state; |
1894 | { | |
1895 | static char *hint = (char *)NULL; | |
1896 | static char *path = (char *)NULL; | |
1897 | static char *val = (char *)NULL; | |
1898 | static char *filename_hint = (char *)NULL; | |
ac50fbac | 1899 | static char *fnhint = (char *)NULL; |
95732b49 | 1900 | static char *dequoted_hint = (char *)NULL; |
3185942a JA |
1901 | static char *directory_part = (char *)NULL; |
1902 | static char **glob_matches = (char **)NULL; | |
d233b485 | 1903 | static int path_index, hint_len, istate, igncase; |
0628567a | 1904 | static int mapping_over, local_index, searching_path, hint_is_dir; |
3185942a | 1905 | static int old_glob_ignore_case, globpat; |
726f6388 JA |
1906 | static SHELL_VAR **varlist = (SHELL_VAR **)NULL; |
1907 | #if defined (ALIAS) | |
ccc6cda3 | 1908 | static alias_t **alias_list = (alias_t **)NULL; |
726f6388 | 1909 | #endif /* ALIAS */ |
ac50fbac | 1910 | char *temp, *cval; |
726f6388 JA |
1911 | |
1912 | /* We have to map over the possibilities for command words. If we have | |
1913 | no state, then make one just for that purpose. */ | |
3185942a | 1914 | if (state == 0) |
726f6388 | 1915 | { |
ac50fbac CR |
1916 | rl_filename_stat_hook = bash_command_name_stat_hook; |
1917 | ||
95732b49 JA |
1918 | if (dequoted_hint && dequoted_hint != hint) |
1919 | free (dequoted_hint); | |
726f6388 JA |
1920 | if (hint) |
1921 | free (hint); | |
1922 | ||
0628567a JA |
1923 | mapping_over = searching_path = 0; |
1924 | hint_is_dir = CMD_IS_DIR (hint_text); | |
726f6388 JA |
1925 | val = (char *)NULL; |
1926 | ||
95732b49 | 1927 | temp = rl_variable_value ("completion-ignore-case"); |
3185942a JA |
1928 | igncase = RL_BOOLEAN_VARIABLE_VALUE (temp); |
1929 | ||
1930 | if (glob_matches) | |
1931 | { | |
1932 | free (glob_matches); | |
1933 | glob_matches = (char **)NULL; | |
1934 | } | |
1935 | ||
4d2e3154 | 1936 | globpat = completion_glob_pattern ((char *)hint_text); |
95732b49 | 1937 | |
726f6388 JA |
1938 | /* If this is an absolute program name, do not check it against |
1939 | aliases, reserved words, functions or builtins. We must check | |
1940 | whether or not it is unique, and, if so, whether that filename | |
1941 | is executable. */ | |
3185942a | 1942 | if (globpat || absolute_program (hint_text)) |
726f6388 JA |
1943 | { |
1944 | /* Perform tilde expansion on what's passed, so we don't end up | |
a0c0a00f CR |
1945 | passing filenames with tildes directly to stat(). The rest of |
1946 | the shell doesn't do variable expansion on the word following | |
1947 | the tilde, so we don't do it here even if direxpand is set. */ | |
726f6388 | 1948 | if (*hint_text == '~') |
3185942a JA |
1949 | { |
1950 | hint = bash_tilde_expand (hint_text, 0); | |
1951 | directory_part = savestring (hint_text); | |
1952 | temp = strchr (directory_part, '/'); | |
1953 | if (temp) | |
1954 | *temp = 0; | |
1955 | else | |
1956 | { | |
1957 | free (directory_part); | |
1958 | directory_part = (char *)NULL; | |
1959 | } | |
1960 | } | |
a0c0a00f CR |
1961 | else if (dircomplete_expand) |
1962 | { | |
1963 | hint = savestring (hint_text); | |
1964 | bash_directory_completion_hook (&hint); | |
1965 | } | |
726f6388 JA |
1966 | else |
1967 | hint = savestring (hint_text); | |
95732b49 JA |
1968 | |
1969 | dequoted_hint = hint; | |
1970 | /* If readline's completer found a quote character somewhere, but | |
1971 | didn't set the quote character, there must have been a quote | |
1972 | character embedded in the filename. It can't be at the start of | |
1973 | the filename, so we need to dequote the filename before we look | |
1974 | in the file system for it. */ | |
1975 | if (rl_completion_found_quote && rl_completion_quote_character == 0) | |
1976 | { | |
1977 | dequoted_hint = bash_dequote_filename (hint, 0); | |
1978 | free (hint); | |
1979 | hint = dequoted_hint; | |
1980 | } | |
d233b485 | 1981 | hint_len = strlen (hint); |
726f6388 JA |
1982 | |
1983 | if (filename_hint) | |
1984 | free (filename_hint); | |
95732b49 | 1985 | |
ac50fbac | 1986 | fnhint = filename_hint = savestring (hint); |
726f6388 | 1987 | |
726f6388 | 1988 | istate = 0; |
3185942a JA |
1989 | |
1990 | if (globpat) | |
1991 | { | |
1992 | mapping_over = 5; | |
1993 | goto globword; | |
1994 | } | |
1995 | else | |
1996 | { | |
ac50fbac | 1997 | if (dircomplete_expand && path_dot_or_dotdot (filename_hint)) |
16b2d7f4 CR |
1998 | { |
1999 | dircomplete_expand = 0; | |
2000 | set_directory_hook (); | |
2001 | dircomplete_expand = 1; | |
2002 | } | |
3185942a JA |
2003 | mapping_over = 4; |
2004 | goto inner; | |
2005 | } | |
726f6388 JA |
2006 | } |
2007 | ||
95732b49 | 2008 | dequoted_hint = hint = savestring (hint_text); |
d233b485 | 2009 | hint_len = strlen (hint); |
726f6388 | 2010 | |
95732b49 | 2011 | if (rl_completion_found_quote && rl_completion_quote_character == 0) |
d233b485 | 2012 | dequoted_hint = bash_dequote_filename (hint, 0); |
95732b49 | 2013 | |
726f6388 | 2014 | path = get_string_value ("PATH"); |
95732b49 | 2015 | path_index = dot_in_path = 0; |
726f6388 JA |
2016 | |
2017 | /* Initialize the variables for each type of command word. */ | |
2018 | local_index = 0; | |
2019 | ||
2020 | if (varlist) | |
2021 | free (varlist); | |
2022 | ||
2023 | varlist = all_visible_functions (); | |
2024 | ||
2025 | #if defined (ALIAS) | |
2026 | if (alias_list) | |
2027 | free (alias_list); | |
2028 | ||
2029 | alias_list = all_aliases (); | |
2030 | #endif /* ALIAS */ | |
2031 | } | |
2032 | ||
2033 | /* mapping_over says what we are currently hacking. Note that every case | |
2034 | in this list must fall through when there are no more possibilities. */ | |
2035 | ||
2036 | switch (mapping_over) | |
2037 | { | |
2038 | case 0: /* Aliases come first. */ | |
2039 | #if defined (ALIAS) | |
2040 | while (alias_list && alias_list[local_index]) | |
2041 | { | |
2042 | register char *alias; | |
2043 | ||
2044 | alias = alias_list[local_index++]->name; | |
2045 | ||
d233b485 CR |
2046 | if (igncase == 0 && (STREQN (alias, hint, hint_len))) |
2047 | return (savestring (alias)); | |
2048 | else if (igncase && strncasecmp (alias, hint, hint_len) == 0) | |
726f6388 JA |
2049 | return (savestring (alias)); |
2050 | } | |
2051 | #endif /* ALIAS */ | |
2052 | local_index = 0; | |
2053 | mapping_over++; | |
2054 | ||
2055 | case 1: /* Then shell reserved words. */ | |
2056 | { | |
2057 | while (word_token_alist[local_index].word) | |
2058 | { | |
2059 | register char *reserved_word; | |
2060 | ||
2061 | reserved_word = word_token_alist[local_index++].word; | |
2062 | ||
2063 | if (STREQN (reserved_word, hint, hint_len)) | |
2064 | return (savestring (reserved_word)); | |
2065 | } | |
2066 | local_index = 0; | |
2067 | mapping_over++; | |
2068 | } | |
2069 | ||
2070 | case 2: /* Then function names. */ | |
2071 | while (varlist && varlist[local_index]) | |
2072 | { | |
2073 | register char *varname; | |
2074 | ||
2075 | varname = varlist[local_index++]->name; | |
2076 | ||
d233b485 CR |
2077 | /* Honor completion-ignore-case for shell function names. */ |
2078 | if (igncase == 0 && (STREQN (varname, hint, hint_len))) | |
2079 | return (savestring (varname)); | |
2080 | else if (igncase && strncasecmp (varname, hint, hint_len) == 0) | |
726f6388 JA |
2081 | return (savestring (varname)); |
2082 | } | |
2083 | local_index = 0; | |
2084 | mapping_over++; | |
2085 | ||
2086 | case 3: /* Then shell builtins. */ | |
2087 | for (; local_index < num_shell_builtins; local_index++) | |
2088 | { | |
2089 | /* Ignore it if it doesn't have a function pointer or if it | |
2090 | is not currently enabled. */ | |
2091 | if (!shell_builtins[local_index].function || | |
2092 | (shell_builtins[local_index].flags & BUILTIN_ENABLED) == 0) | |
2093 | continue; | |
2094 | ||
2095 | if (STREQN (shell_builtins[local_index].name, hint, hint_len)) | |
2096 | { | |
2097 | int i = local_index++; | |
2098 | ||
2099 | return (savestring (shell_builtins[i].name)); | |
2100 | } | |
2101 | } | |
2102 | local_index = 0; | |
2103 | mapping_over++; | |
2104 | } | |
2105 | ||
3185942a JA |
2106 | globword: |
2107 | /* Limited support for completing command words with globbing chars. Only | |
2108 | a single match (multiple matches that end up reducing the number of | |
2109 | characters in the common prefix are bad) will ever be returned on | |
2110 | regular completion. */ | |
30d188c2 | 2111 | if (globpat) |
3185942a JA |
2112 | { |
2113 | if (state == 0) | |
2114 | { | |
2115 | glob_ignore_case = igncase; | |
8868edaf | 2116 | glob_matches = shell_glob_filename (hint, 0); |
3185942a JA |
2117 | glob_ignore_case = old_glob_ignore_case; |
2118 | ||
2119 | if (GLOB_FAILED (glob_matches) || glob_matches == 0) | |
2120 | { | |
2121 | glob_matches = (char **)NULL; | |
2122 | return ((char *)NULL); | |
2123 | } | |
2124 | ||
2125 | local_index = 0; | |
2126 | ||
2127 | if (glob_matches[1] && rl_completion_type == TAB) /* multiple matches are bad */ | |
2128 | return ((char *)NULL); | |
2129 | } | |
2130 | ||
2131 | while (val = glob_matches[local_index++]) | |
2132 | { | |
2133 | if (executable_or_directory (val)) | |
2134 | { | |
ac50fbac | 2135 | if (*hint_text == '~' && directory_part) |
3185942a | 2136 | { |
ac50fbac | 2137 | temp = maybe_restore_tilde (val, directory_part); |
3185942a JA |
2138 | free (val); |
2139 | val = temp; | |
2140 | } | |
2141 | return (val); | |
2142 | } | |
2143 | free (val); | |
2144 | } | |
2145 | ||
2146 | glob_ignore_case = old_glob_ignore_case; | |
2147 | return ((char *)NULL); | |
2148 | } | |
2149 | ||
0628567a JA |
2150 | /* If the text passed is a directory in the current directory, return it |
2151 | as a possible match. Executables in directories in the current | |
2152 | directory can be specified using relative pathnames and successfully | |
2153 | executed even when `.' is not in $PATH. */ | |
2154 | if (hint_is_dir) | |
2155 | { | |
2156 | hint_is_dir = 0; /* only return the hint text once */ | |
2157 | return (savestring (hint_text)); | |
2158 | } | |
2159 | ||
ccc6cda3 | 2160 | /* Repeatedly call filename_completion_function while we have |
726f6388 JA |
2161 | members of PATH left. Question: should we stat each file? |
2162 | Answer: we call executable_file () on each file. */ | |
2163 | outer: | |
2164 | ||
2165 | istate = (val != (char *)NULL); | |
2166 | ||
3185942a | 2167 | if (istate == 0) |
726f6388 JA |
2168 | { |
2169 | char *current_path; | |
2170 | ||
2171 | /* Get the next directory from the path. If there is none, then we | |
2172 | are all done. */ | |
3185942a | 2173 | if (path == 0 || path[path_index] == 0 || |
726f6388 JA |
2174 | (current_path = extract_colon_unit (path, &path_index)) == 0) |
2175 | return ((char *)NULL); | |
2176 | ||
0628567a | 2177 | searching_path = 1; |
726f6388 JA |
2178 | if (*current_path == 0) |
2179 | { | |
2180 | free (current_path); | |
2181 | current_path = savestring ("."); | |
2182 | } | |
2183 | ||
2184 | if (*current_path == '~') | |
2185 | { | |
2186 | char *t; | |
2187 | ||
7117c2d2 | 2188 | t = bash_tilde_expand (current_path, 0); |
726f6388 JA |
2189 | free (current_path); |
2190 | current_path = t; | |
2191 | } | |
2192 | ||
95732b49 JA |
2193 | if (current_path[0] == '.' && current_path[1] == '\0') |
2194 | dot_in_path = 1; | |
2195 | ||
ac50fbac CR |
2196 | if (fnhint && fnhint != filename_hint) |
2197 | free (fnhint); | |
726f6388 JA |
2198 | if (filename_hint) |
2199 | free (filename_hint); | |
2200 | ||
7117c2d2 | 2201 | filename_hint = sh_makepath (current_path, hint, 0); |
ac50fbac CR |
2202 | /* Need a quoted version (though it doesn't matter much in most |
2203 | cases) because rl_filename_completion_function dequotes the | |
2204 | filename it gets, assuming that it's been quoted as part of | |
2205 | the input line buffer. */ | |
2206 | if (strpbrk (filename_hint, "\"'\\")) | |
2207 | fnhint = sh_backslash_quote (filename_hint, filename_bstab, 0); | |
2208 | else | |
2209 | fnhint = filename_hint; | |
3185942a | 2210 | free (current_path); /* XXX */ |
726f6388 JA |
2211 | } |
2212 | ||
2213 | inner: | |
ac50fbac | 2214 | val = rl_filename_completion_function (fnhint, istate); |
16b2d7f4 CR |
2215 | if (mapping_over == 4 && dircomplete_expand) |
2216 | set_directory_hook (); | |
2217 | ||
726f6388 JA |
2218 | istate = 1; |
2219 | ||
ccc6cda3 | 2220 | if (val == 0) |
726f6388 JA |
2221 | { |
2222 | /* If the hint text is an absolute program, then don't bother | |
2223 | searching through PATH. */ | |
2224 | if (absolute_program (hint)) | |
2225 | return ((char *)NULL); | |
2226 | ||
2227 | goto outer; | |
2228 | } | |
2229 | else | |
2230 | { | |
d166f048 | 2231 | int match, freetemp; |
726f6388 JA |
2232 | |
2233 | if (absolute_program (hint)) | |
2234 | { | |
95732b49 JA |
2235 | if (igncase == 0) |
2236 | match = strncmp (val, hint, hint_len) == 0; | |
2237 | else | |
2238 | match = strncasecmp (val, hint, hint_len) == 0; | |
2239 | ||
726f6388 JA |
2240 | /* If we performed tilde expansion, restore the original |
2241 | filename. */ | |
2242 | if (*hint_text == '~') | |
ac50fbac | 2243 | temp = maybe_restore_tilde (val, directory_part); |
726f6388 JA |
2244 | else |
2245 | temp = savestring (val); | |
d166f048 | 2246 | freetemp = 1; |
726f6388 JA |
2247 | } |
2248 | else | |
2249 | { | |
2250 | temp = strrchr (val, '/'); | |
2251 | ||
2252 | if (temp) | |
2253 | { | |
2254 | temp++; | |
95732b49 JA |
2255 | if (igncase == 0) |
2256 | freetemp = match = strncmp (temp, hint, hint_len) == 0; | |
2257 | else | |
2258 | freetemp = match = strncasecmp (temp, hint, hint_len) == 0; | |
726f6388 JA |
2259 | if (match) |
2260 | temp = savestring (temp); | |
2261 | } | |
2262 | else | |
d166f048 | 2263 | freetemp = match = 0; |
726f6388 JA |
2264 | } |
2265 | ||
0628567a JA |
2266 | /* If we have found a match, and it is an executable file, return it. |
2267 | We don't return directory names when searching $PATH, since the | |
2268 | bash execution code won't find executables in directories which | |
2269 | appear in directories in $PATH when they're specified using | |
ac50fbac CR |
2270 | relative pathnames. */ |
2271 | #if 0 | |
2272 | /* If we're not searching $PATH and we have a relative pathname, we | |
2273 | need to re-canonicalize it before testing whether or not it's an | |
2274 | executable or a directory so the shell treats .. relative to $PWD | |
2275 | according to the physical/logical option. The shell already | |
2276 | canonicalizes the directory name in order to tell readline where | |
2277 | to look, so not doing it here will be inconsistent. */ | |
2278 | /* XXX -- currently not used -- will introduce more inconsistency, | |
2279 | since shell does not canonicalize ../foo before passing it to | |
2280 | shell_execve(). */ | |
2281 | if (match && searching_path == 0 && *val == '.') | |
2282 | { | |
2283 | char *t, *t1; | |
2284 | ||
2285 | t = get_working_directory ("command-word-completion"); | |
2286 | t1 = make_absolute (val, t); | |
2287 | free (t); | |
2288 | cval = sh_canonpath (t1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); | |
2289 | } | |
2290 | else | |
0628567a | 2291 | #endif |
ac50fbac CR |
2292 | cval = val; |
2293 | ||
2294 | if (match && executable_completion ((searching_path ? val : cval), searching_path)) | |
726f6388 | 2295 | { |
ac50fbac CR |
2296 | if (cval != val) |
2297 | free (cval); | |
726f6388 JA |
2298 | free (val); |
2299 | val = ""; /* So it won't be NULL. */ | |
2300 | return (temp); | |
2301 | } | |
2302 | else | |
2303 | { | |
d166f048 JA |
2304 | if (freetemp) |
2305 | free (temp); | |
ac50fbac CR |
2306 | if (cval != val) |
2307 | free (cval); | |
726f6388 JA |
2308 | free (val); |
2309 | goto inner; | |
2310 | } | |
2311 | } | |
2312 | } | |
2313 | ||
d166f048 | 2314 | /* Completion inside an unterminated command substitution. */ |
726f6388 JA |
2315 | static char * |
2316 | command_subst_completion_function (text, state) | |
28ef6c31 | 2317 | const char *text; |
ccc6cda3 | 2318 | int state; |
726f6388 JA |
2319 | { |
2320 | static char **matches = (char **)NULL; | |
28ef6c31 JA |
2321 | static const char *orig_start; |
2322 | static char *filename_text = (char *)NULL; | |
726f6388 | 2323 | static int cmd_index, start_len; |
ccc6cda3 | 2324 | char *value; |
726f6388 JA |
2325 | |
2326 | if (state == 0) | |
2327 | { | |
2328 | if (filename_text) | |
2329 | free (filename_text); | |
2330 | orig_start = text; | |
2331 | if (*text == '`') | |
28ef6c31 | 2332 | text++; |
cce855bc | 2333 | else if (*text == '$' && text[1] == '(') /* ) */ |
28ef6c31 | 2334 | text += 2; |
b80f6443 JA |
2335 | /* If the text was quoted, suppress any quote character that the |
2336 | readline completion code would insert. */ | |
2337 | rl_completion_suppress_quote = 1; | |
726f6388 JA |
2338 | start_len = text - orig_start; |
2339 | filename_text = savestring (text); | |
2340 | if (matches) | |
2341 | free (matches); | |
7117c2d2 JA |
2342 | |
2343 | /* | |
2344 | * At this point we can entertain the idea of re-parsing | |
2345 | * `filename_text' into a (possibly incomplete) command name and | |
2346 | * arguments, and doing completion based on that. This is | |
2347 | * currently very rudimentary, but it is a small improvement. | |
2348 | */ | |
2349 | for (value = filename_text + strlen (filename_text) - 1; value > filename_text; value--) | |
2350 | if (whitespace (*value) || member (*value, COMMAND_SEPARATORS)) | |
2351 | break; | |
2352 | if (value <= filename_text) | |
2353 | matches = rl_completion_matches (filename_text, command_word_completion_function); | |
2354 | else | |
2355 | { | |
2356 | value++; | |
2357 | start_len += value - filename_text; | |
2358 | if (whitespace (value[-1])) | |
2359 | matches = rl_completion_matches (value, rl_filename_completion_function); | |
2360 | else | |
2361 | matches = rl_completion_matches (value, command_word_completion_function); | |
2362 | } | |
2363 | ||
2364 | /* If there is more than one match, rl_completion_matches has already | |
2365 | put the lcd in matches[0]. Skip over it. */ | |
2366 | cmd_index = matches && matches[0] && matches[1]; | |
95732b49 JA |
2367 | |
2368 | /* If there's a single match and it's a directory, set the append char | |
2369 | to the expected `/'. Otherwise, don't append anything. */ | |
2370 | if (matches && matches[0] && matches[1] == 0 && test_for_directory (matches[0])) | |
2371 | rl_completion_append_character = '/'; | |
2372 | else | |
2373 | rl_completion_suppress_append = 1; | |
726f6388 JA |
2374 | } |
2375 | ||
ac50fbac | 2376 | if (matches == 0 || matches[cmd_index] == 0) |
726f6388 JA |
2377 | { |
2378 | rl_filename_quoting_desired = 0; /* disable quoting */ | |
2379 | return ((char *)NULL); | |
2380 | } | |
2381 | else | |
2382 | { | |
f73dda09 | 2383 | value = (char *)xmalloc (1 + start_len + strlen (matches[cmd_index])); |
726f6388 JA |
2384 | |
2385 | if (start_len == 1) | |
28ef6c31 | 2386 | value[0] = *orig_start; |
726f6388 | 2387 | else |
28ef6c31 | 2388 | strncpy (value, orig_start, start_len); |
726f6388 JA |
2389 | |
2390 | strcpy (value + start_len, matches[cmd_index]); | |
2391 | ||
2392 | cmd_index++; | |
2393 | return (value); | |
2394 | } | |
2395 | } | |
2396 | ||
2397 | /* Okay, now we write the entry_function for variable completion. */ | |
2398 | static char * | |
2399 | variable_completion_function (text, state) | |
28ef6c31 | 2400 | const char *text; |
726f6388 | 2401 | int state; |
726f6388 | 2402 | { |
bb70624e | 2403 | static char **varlist = (char **)NULL; |
726f6388 JA |
2404 | static int varlist_index; |
2405 | static char *varname = (char *)NULL; | |
726f6388 JA |
2406 | static int first_char, first_char_loc; |
2407 | ||
2408 | if (!state) | |
2409 | { | |
2410 | if (varname) | |
2411 | free (varname); | |
2412 | ||
2413 | first_char_loc = 0; | |
2414 | first_char = text[0]; | |
2415 | ||
2416 | if (first_char == '$') | |
2417 | first_char_loc++; | |
2418 | ||
ccc6cda3 | 2419 | if (text[first_char_loc] == '{') |
28ef6c31 | 2420 | first_char_loc++; |
ccc6cda3 | 2421 | |
726f6388 JA |
2422 | varname = savestring (text + first_char_loc); |
2423 | ||
726f6388 | 2424 | if (varlist) |
7117c2d2 | 2425 | strvec_dispose (varlist); |
726f6388 | 2426 | |
bb70624e JA |
2427 | varlist = all_variables_matching_prefix (varname); |
2428 | varlist_index = 0; | |
726f6388 JA |
2429 | } |
2430 | ||
2431 | if (!varlist || !varlist[varlist_index]) | |
2432 | { | |
2433 | return ((char *)NULL); | |
2434 | } | |
2435 | else | |
2436 | { | |
f73dda09 JA |
2437 | char *value; |
2438 | ||
2439 | value = (char *)xmalloc (4 + strlen (varlist[varlist_index])); | |
726f6388 JA |
2440 | |
2441 | if (first_char_loc) | |
ccc6cda3 JA |
2442 | { |
2443 | value[0] = first_char; | |
2444 | if (first_char_loc == 2) | |
2445 | value[1] = '{'; | |
2446 | } | |
726f6388 | 2447 | |
bb70624e | 2448 | strcpy (value + first_char_loc, varlist[varlist_index]); |
ccc6cda3 | 2449 | if (first_char_loc == 2) |
28ef6c31 | 2450 | strcat (value, "}"); |
726f6388 JA |
2451 | |
2452 | varlist_index++; | |
2453 | return (value); | |
2454 | } | |
2455 | } | |
2456 | ||
2457 | /* How about a completion function for hostnames? */ | |
2458 | static char * | |
2459 | hostname_completion_function (text, state) | |
28ef6c31 | 2460 | const char *text; |
726f6388 | 2461 | int state; |
726f6388 JA |
2462 | { |
2463 | static char **list = (char **)NULL; | |
2464 | static int list_index = 0; | |
2465 | static int first_char, first_char_loc; | |
2466 | ||
2467 | /* If we don't have any state, make some. */ | |
ccc6cda3 | 2468 | if (state == 0) |
726f6388 | 2469 | { |
ccc6cda3 | 2470 | FREE (list); |
726f6388 JA |
2471 | |
2472 | list = (char **)NULL; | |
2473 | ||
2474 | first_char_loc = 0; | |
2475 | first_char = *text; | |
2476 | ||
2477 | if (first_char == '@') | |
2478 | first_char_loc++; | |
2479 | ||
f73dda09 | 2480 | list = hostnames_matching ((char *)text+first_char_loc); |
726f6388 JA |
2481 | list_index = 0; |
2482 | } | |
2483 | ||
2484 | if (list && list[list_index]) | |
2485 | { | |
ccc6cda3 | 2486 | char *t; |
726f6388 | 2487 | |
f73dda09 | 2488 | t = (char *)xmalloc (2 + strlen (list[list_index])); |
726f6388 JA |
2489 | *t = first_char; |
2490 | strcpy (t + first_char_loc, list[list_index]); | |
2491 | list_index++; | |
2492 | return (t); | |
2493 | } | |
ccc6cda3 JA |
2494 | |
2495 | return ((char *)NULL); | |
726f6388 JA |
2496 | } |
2497 | ||
7117c2d2 JA |
2498 | /* |
2499 | * A completion function for service names from /etc/services (or wherever). | |
2500 | */ | |
2501 | char * | |
2502 | bash_servicename_completion_function (text, state) | |
2503 | const char *text; | |
2504 | int state; | |
2505 | { | |
2506 | #if defined (__WIN32__) || defined (__OPENNT) || !defined (HAVE_GETSERVENT) | |
2507 | return ((char *)NULL); | |
2508 | #else | |
2509 | static char *sname = (char *)NULL; | |
2510 | static struct servent *srvent; | |
d233b485 | 2511 | static int snamelen; |
7117c2d2 JA |
2512 | char *value; |
2513 | char **alist, *aentry; | |
2514 | int afound; | |
2515 | ||
2516 | if (state == 0) | |
2517 | { | |
2518 | FREE (sname); | |
7117c2d2 JA |
2519 | |
2520 | sname = savestring (text); | |
2521 | snamelen = strlen (sname); | |
2522 | setservent (0); | |
2523 | } | |
2524 | ||
2525 | while (srvent = getservent ()) | |
2526 | { | |
2527 | afound = 0; | |
2528 | if (snamelen == 0 || (STREQN (sname, srvent->s_name, snamelen))) | |
2529 | break; | |
2530 | /* Not primary, check aliases */ | |
0628567a | 2531 | for (alist = srvent->s_aliases; *alist; alist++) |
7117c2d2 | 2532 | { |
0628567a | 2533 | aentry = *alist; |
7117c2d2 JA |
2534 | if (STREQN (sname, aentry, snamelen)) |
2535 | { | |
2536 | afound = 1; | |
2537 | break; | |
2538 | } | |
2539 | } | |
2540 | ||
2541 | if (afound) | |
2542 | break; | |
2543 | } | |
2544 | ||
2545 | if (srvent == 0) | |
2546 | { | |
2547 | endservent (); | |
2548 | return ((char *)NULL); | |
2549 | } | |
2550 | ||
2551 | value = afound ? savestring (aentry) : savestring (srvent->s_name); | |
2552 | return value; | |
2553 | #endif | |
2554 | } | |
2555 | ||
2556 | /* | |
2557 | * A completion function for group names from /etc/group (or wherever). | |
2558 | */ | |
f73dda09 JA |
2559 | char * |
2560 | bash_groupname_completion_function (text, state) | |
2561 | const char *text; | |
2562 | int state; | |
2563 | { | |
2564 | #if defined (__WIN32__) || defined (__OPENNT) || !defined (HAVE_GRP_H) | |
2565 | return ((char *)NULL); | |
2566 | #else | |
2567 | static char *gname = (char *)NULL; | |
2568 | static struct group *grent; | |
2569 | static int gnamelen; | |
2570 | char *value; | |
2571 | ||
2572 | if (state == 0) | |
2573 | { | |
2574 | FREE (gname); | |
2575 | gname = savestring (text); | |
2576 | gnamelen = strlen (gname); | |
2577 | ||
2578 | setgrent (); | |
2579 | } | |
2580 | ||
2581 | while (grent = getgrent ()) | |
2582 | { | |
2583 | if (gnamelen == 0 || (STREQN (gname, grent->gr_name, gnamelen))) | |
2584 | break; | |
2585 | } | |
2586 | ||
2587 | if (grent == 0) | |
2588 | { | |
2589 | endgrent (); | |
2590 | return ((char *)NULL); | |
2591 | } | |
2592 | ||
2593 | value = savestring (grent->gr_name); | |
2594 | return (value); | |
2595 | #endif | |
2596 | } | |
2597 | ||
cce855bc JA |
2598 | /* Functions to perform history and alias expansions on the current line. */ |
2599 | ||
2600 | #if defined (BANG_HISTORY) | |
2601 | /* Perform history expansion on the current line. If no history expansion | |
2602 | is done, pre_process_line() returns what it was passed, so we need to | |
2603 | allocate a new line here. */ | |
726f6388 JA |
2604 | static char * |
2605 | history_expand_line_internal (line) | |
2606 | char *line; | |
2607 | { | |
2608 | char *new_line; | |
b80f6443 | 2609 | int old_verify; |
726f6388 | 2610 | |
b80f6443 JA |
2611 | old_verify = hist_verify; |
2612 | hist_verify = 0; | |
726f6388 | 2613 | new_line = pre_process_line (line, 0, 0); |
b80f6443 JA |
2614 | hist_verify = old_verify; |
2615 | ||
d166f048 | 2616 | return (new_line == line) ? savestring (line) : new_line; |
726f6388 | 2617 | } |
726f6388 JA |
2618 | #endif |
2619 | ||
2620 | /* There was an error in expansion. Let the preprocessor print | |
2621 | the error here. */ | |
2622 | static void | |
2623 | cleanup_expansion_error () | |
2624 | { | |
2625 | char *to_free; | |
b80f6443 JA |
2626 | #if defined (BANG_HISTORY) |
2627 | int old_verify; | |
2628 | ||
2629 | old_verify = hist_verify; | |
2630 | hist_verify = 0; | |
2631 | #endif | |
726f6388 JA |
2632 | |
2633 | fprintf (rl_outstream, "\r\n"); | |
2634 | to_free = pre_process_line (rl_line_buffer, 1, 0); | |
b80f6443 JA |
2635 | #if defined (BANG_HISTORY) |
2636 | hist_verify = old_verify; | |
2637 | #endif | |
d166f048 | 2638 | if (to_free != rl_line_buffer) |
b80f6443 | 2639 | FREE (to_free); |
726f6388 JA |
2640 | putc ('\r', rl_outstream); |
2641 | rl_forced_update_display (); | |
2642 | } | |
2643 | ||
2644 | /* If NEW_LINE differs from what is in the readline line buffer, add an | |
2645 | undo record to get from the readline line buffer contents to the new | |
2646 | line and make NEW_LINE the current readline line. */ | |
2647 | static void | |
2648 | maybe_make_readline_line (new_line) | |
2649 | char *new_line; | |
2650 | { | |
d233b485 | 2651 | if (new_line && strcmp (new_line, rl_line_buffer) != 0) |
726f6388 JA |
2652 | { |
2653 | rl_point = rl_end; | |
2654 | ||
2655 | rl_add_undo (UNDO_BEGIN, 0, 0, 0); | |
2656 | rl_delete_text (0, rl_point); | |
7117c2d2 | 2657 | rl_point = rl_end = rl_mark = 0; |
726f6388 JA |
2658 | rl_insert_text (new_line); |
2659 | rl_add_undo (UNDO_END, 0, 0, 0); | |
2660 | } | |
2661 | } | |
2662 | ||
2663 | /* Make NEW_LINE be the current readline line. This frees NEW_LINE. */ | |
2664 | static void | |
2665 | set_up_new_line (new_line) | |
2666 | char *new_line; | |
2667 | { | |
f73dda09 JA |
2668 | int old_point, at_end; |
2669 | ||
2670 | old_point = rl_point; | |
2671 | at_end = rl_point == rl_end; | |
726f6388 JA |
2672 | |
2673 | /* If the line was history and alias expanded, then make that | |
2674 | be one thing to undo. */ | |
2675 | maybe_make_readline_line (new_line); | |
2676 | free (new_line); | |
2677 | ||
2678 | /* Place rl_point where we think it should go. */ | |
2679 | if (at_end) | |
2680 | rl_point = rl_end; | |
2681 | else if (old_point < rl_end) | |
2682 | { | |
2683 | rl_point = old_point; | |
2684 | if (!whitespace (rl_line_buffer[rl_point])) | |
b72432fd | 2685 | rl_forward_word (1, 0); |
726f6388 JA |
2686 | } |
2687 | } | |
2688 | ||
cce855bc JA |
2689 | #if defined (ALIAS) |
2690 | /* Expand aliases in the current readline line. */ | |
2691 | static int | |
28ef6c31 JA |
2692 | alias_expand_line (count, ignore) |
2693 | int count, ignore; | |
cce855bc JA |
2694 | { |
2695 | char *new_line; | |
2696 | ||
2697 | new_line = alias_expand (rl_line_buffer); | |
2698 | ||
2699 | if (new_line) | |
2700 | { | |
2701 | set_up_new_line (new_line); | |
2702 | return (0); | |
2703 | } | |
2704 | else | |
2705 | { | |
2706 | cleanup_expansion_error (); | |
2707 | return (1); | |
2708 | } | |
2709 | } | |
2710 | #endif | |
2711 | ||
2712 | #if defined (BANG_HISTORY) | |
726f6388 | 2713 | /* History expand the line. */ |
cce855bc | 2714 | static int |
28ef6c31 JA |
2715 | history_expand_line (count, ignore) |
2716 | int count, ignore; | |
726f6388 JA |
2717 | { |
2718 | char *new_line; | |
2719 | ||
2720 | new_line = history_expand_line_internal (rl_line_buffer); | |
2721 | ||
2722 | if (new_line) | |
cce855bc JA |
2723 | { |
2724 | set_up_new_line (new_line); | |
2725 | return (0); | |
2726 | } | |
726f6388 | 2727 | else |
cce855bc JA |
2728 | { |
2729 | cleanup_expansion_error (); | |
2730 | return (1); | |
2731 | } | |
2732 | } | |
2733 | ||
2734 | /* Expand history substitutions in the current line and then insert a | |
28ef6c31 | 2735 | space (hopefully close to where we were before). */ |
cce855bc | 2736 | static int |
28ef6c31 JA |
2737 | tcsh_magic_space (count, ignore) |
2738 | int count, ignore; | |
cce855bc | 2739 | { |
28ef6c31 JA |
2740 | int dist_from_end, old_point; |
2741 | ||
2742 | old_point = rl_point; | |
2743 | dist_from_end = rl_end - rl_point; | |
2744 | if (history_expand_line (count, ignore) == 0) | |
cce855bc | 2745 | { |
28ef6c31 JA |
2746 | /* Try a simple heuristic from Stephen Gildea <gildea@intouchsys.com>. |
2747 | This works if all expansions were before rl_point or if no expansions | |
2748 | were performed. */ | |
2749 | rl_point = (old_point == 0) ? old_point : rl_end - dist_from_end; | |
cce855bc JA |
2750 | rl_insert (1, ' '); |
2751 | return (0); | |
2752 | } | |
2753 | else | |
2754 | return (1); | |
726f6388 | 2755 | } |
95732b49 | 2756 | #endif /* BANG_HISTORY */ |
ccc6cda3 | 2757 | |
726f6388 | 2758 | /* History and alias expand the line. */ |
cce855bc | 2759 | static int |
28ef6c31 JA |
2760 | history_and_alias_expand_line (count, ignore) |
2761 | int count, ignore; | |
726f6388 JA |
2762 | { |
2763 | char *new_line; | |
2764 | ||
95732b49 JA |
2765 | new_line = 0; |
2766 | #if defined (BANG_HISTORY) | |
b80f6443 | 2767 | new_line = history_expand_line_internal (rl_line_buffer); |
95732b49 | 2768 | #endif |
726f6388 JA |
2769 | |
2770 | #if defined (ALIAS) | |
2771 | if (new_line) | |
2772 | { | |
2773 | char *alias_line; | |
2774 | ||
2775 | alias_line = alias_expand (new_line); | |
2776 | free (new_line); | |
2777 | new_line = alias_line; | |
2778 | } | |
2779 | #endif /* ALIAS */ | |
2780 | ||
2781 | if (new_line) | |
cce855bc JA |
2782 | { |
2783 | set_up_new_line (new_line); | |
2784 | return (0); | |
2785 | } | |
726f6388 | 2786 | else |
cce855bc JA |
2787 | { |
2788 | cleanup_expansion_error (); | |
2789 | return (1); | |
2790 | } | |
726f6388 JA |
2791 | } |
2792 | ||
2793 | /* History and alias expand the line, then perform the shell word | |
cce855bc JA |
2794 | expansions by calling expand_string. This can't use set_up_new_line() |
2795 | because we want the variable expansions as a separate undo'able | |
2796 | set of operations. */ | |
28ef6c31 JA |
2797 | static int |
2798 | shell_expand_line (count, ignore) | |
2799 | int count, ignore; | |
726f6388 JA |
2800 | { |
2801 | char *new_line; | |
ccc6cda3 | 2802 | WORD_LIST *expanded_string; |
d233b485 | 2803 | WORD_DESC *w; |
726f6388 | 2804 | |
95732b49 JA |
2805 | new_line = 0; |
2806 | #if defined (BANG_HISTORY) | |
b80f6443 | 2807 | new_line = history_expand_line_internal (rl_line_buffer); |
95732b49 | 2808 | #endif |
726f6388 JA |
2809 | |
2810 | #if defined (ALIAS) | |
2811 | if (new_line) | |
2812 | { | |
2813 | char *alias_line; | |
2814 | ||
2815 | alias_line = alias_expand (new_line); | |
2816 | free (new_line); | |
2817 | new_line = alias_line; | |
2818 | } | |
2819 | #endif /* ALIAS */ | |
2820 | ||
2821 | if (new_line) | |
2822 | { | |
2823 | int old_point = rl_point; | |
2824 | int at_end = rl_point == rl_end; | |
2825 | ||
2826 | /* If the line was history and alias expanded, then make that | |
2827 | be one thing to undo. */ | |
2828 | maybe_make_readline_line (new_line); | |
2829 | free (new_line); | |
2830 | ||
2831 | /* If there is variable expansion to perform, do that as a separate | |
2832 | operation to be undone. */ | |
d233b485 CR |
2833 | |
2834 | #if 1 | |
2835 | w = alloc_word_desc (); | |
2836 | w->word = savestring (rl_line_buffer); | |
2837 | w->flags = rl_explicit_arg ? (W_NOPROCSUB|W_NOCOMSUB) : 0; | |
2838 | expanded_string = expand_word (w, rl_explicit_arg ? Q_HERE_DOCUMENT : 0); | |
2839 | dispose_word (w); | |
2840 | #else | |
d166f048 JA |
2841 | new_line = savestring (rl_line_buffer); |
2842 | expanded_string = expand_string (new_line, 0); | |
2843 | FREE (new_line); | |
d233b485 CR |
2844 | #endif |
2845 | ||
ccc6cda3 JA |
2846 | if (expanded_string == 0) |
2847 | { | |
f73dda09 | 2848 | new_line = (char *)xmalloc (1); |
ccc6cda3 JA |
2849 | new_line[0] = '\0'; |
2850 | } | |
2851 | else | |
2852 | { | |
2853 | new_line = string_list (expanded_string); | |
2854 | dispose_words (expanded_string); | |
2855 | } | |
726f6388 | 2856 | |
ccc6cda3 JA |
2857 | maybe_make_readline_line (new_line); |
2858 | free (new_line); | |
726f6388 | 2859 | |
ccc6cda3 JA |
2860 | /* Place rl_point where we think it should go. */ |
2861 | if (at_end) | |
2862 | rl_point = rl_end; | |
2863 | else if (old_point < rl_end) | |
2864 | { | |
2865 | rl_point = old_point; | |
2866 | if (!whitespace (rl_line_buffer[rl_point])) | |
b72432fd | 2867 | rl_forward_word (1, 0); |
ccc6cda3 | 2868 | } |
28ef6c31 | 2869 | return 0; |
726f6388 JA |
2870 | } |
2871 | else | |
28ef6c31 JA |
2872 | { |
2873 | cleanup_expansion_error (); | |
2874 | return 1; | |
2875 | } | |
726f6388 JA |
2876 | } |
2877 | ||
ccc6cda3 JA |
2878 | /* If FIGNORE is set, then don't match files with the given suffixes when |
2879 | completing filenames. If only one of the possibilities has an acceptable | |
726f6388 JA |
2880 | suffix, delete the others, else just return and let the completer |
2881 | signal an error. It is called by the completer when real | |
2882 | completions are done on filenames by the completer's internal | |
2883 | function, not for completion lists (M-?) and not on "other" | |
ccc6cda3 | 2884 | completion types, such as hostnames or commands. */ |
726f6388 | 2885 | |
ccc6cda3 | 2886 | static struct ignorevar fignore = |
726f6388 | 2887 | { |
ccc6cda3 JA |
2888 | "FIGNORE", |
2889 | (struct ign *)0, | |
2890 | 0, | |
2891 | (char *)0, | |
f73dda09 | 2892 | (sh_iv_item_func_t *) 0, |
ccc6cda3 | 2893 | }; |
726f6388 | 2894 | |
726f6388 | 2895 | static void |
ccc6cda3 | 2896 | _ignore_completion_names (names, name_func) |
726f6388 | 2897 | char **names; |
f73dda09 | 2898 | sh_ignore_func_t *name_func; |
726f6388 JA |
2899 | { |
2900 | char **newnames; | |
2901 | int idx, nidx; | |
cce855bc JA |
2902 | char **oldnames; |
2903 | int oidx; | |
726f6388 JA |
2904 | |
2905 | /* If there is only one completion, see if it is acceptable. If it is | |
2906 | not, free it up. In any case, short-circuit and return. This is a | |
2907 | special case because names[0] is not the prefix of the list of names | |
2908 | if there is only one completion; it is the completion itself. */ | |
2909 | if (names[1] == (char *)0) | |
2910 | { | |
b80f6443 JA |
2911 | if (force_fignore) |
2912 | if ((*name_func) (names[0]) == 0) | |
2913 | { | |
2914 | free (names[0]); | |
2915 | names[0] = (char *)NULL; | |
2916 | } | |
2917 | ||
726f6388 JA |
2918 | return; |
2919 | } | |
2920 | ||
2921 | /* Allocate space for array to hold list of pointers to matching | |
2922 | filenames. The pointers are copied back to NAMES when done. */ | |
2923 | for (nidx = 1; names[nidx]; nidx++) | |
2924 | ; | |
7117c2d2 | 2925 | newnames = strvec_create (nidx + 1); |
b80f6443 JA |
2926 | |
2927 | if (force_fignore == 0) | |
2928 | { | |
2929 | oldnames = strvec_create (nidx - 1); | |
2930 | oidx = 0; | |
2931 | } | |
726f6388 JA |
2932 | |
2933 | newnames[0] = names[0]; | |
2934 | for (idx = nidx = 1; names[idx]; idx++) | |
2935 | { | |
2936 | if ((*name_func) (names[idx])) | |
2937 | newnames[nidx++] = names[idx]; | |
b80f6443 JA |
2938 | else if (force_fignore == 0) |
2939 | oldnames[oidx++] = names[idx]; | |
726f6388 | 2940 | else |
28ef6c31 | 2941 | free (names[idx]); |
726f6388 JA |
2942 | } |
2943 | ||
2944 | newnames[nidx] = (char *)NULL; | |
2945 | ||
2946 | /* If none are acceptable then let the completer handle it. */ | |
2947 | if (nidx == 1) | |
2948 | { | |
b80f6443 JA |
2949 | if (force_fignore) |
2950 | { | |
2951 | free (names[0]); | |
2952 | names[0] = (char *)NULL; | |
2953 | } | |
2954 | else | |
2955 | free (oldnames); | |
2956 | ||
726f6388 JA |
2957 | free (newnames); |
2958 | return; | |
2959 | } | |
2960 | ||
b80f6443 JA |
2961 | if (force_fignore == 0) |
2962 | { | |
2963 | while (oidx) | |
2964 | free (oldnames[--oidx]); | |
2965 | free (oldnames); | |
2966 | } | |
cce855bc | 2967 | |
726f6388 JA |
2968 | /* If only one is acceptable, copy it to names[0] and return. */ |
2969 | if (nidx == 2) | |
2970 | { | |
2971 | free (names[0]); | |
2972 | names[0] = newnames[1]; | |
2973 | names[1] = (char *)NULL; | |
2974 | free (newnames); | |
2975 | return; | |
2976 | } | |
ccc6cda3 | 2977 | |
726f6388 JA |
2978 | /* Copy the acceptable names back to NAMES, set the new array end, |
2979 | and return. */ | |
2980 | for (nidx = 1; newnames[nidx]; nidx++) | |
2981 | names[nidx] = newnames[nidx]; | |
2982 | names[nidx] = (char *)NULL; | |
ccc6cda3 JA |
2983 | free (newnames); |
2984 | } | |
2985 | ||
2986 | static int | |
2987 | name_is_acceptable (name) | |
f73dda09 | 2988 | const char *name; |
ccc6cda3 JA |
2989 | { |
2990 | struct ign *p; | |
2991 | int nlen; | |
2992 | ||
2993 | for (nlen = strlen (name), p = fignore.ignores; p->val; p++) | |
2994 | { | |
2995 | if (nlen > p->len && p->len > 0 && STREQ (p->val, &name[nlen - p->len])) | |
2996 | return (0); | |
2997 | } | |
2998 | ||
2999 | return (1); | |
726f6388 JA |
3000 | } |
3001 | ||
b72432fd JA |
3002 | #if 0 |
3003 | static int | |
3004 | ignore_dot_names (name) | |
3005 | char *name; | |
3006 | { | |
3007 | return (name[0] != '.'); | |
3008 | } | |
3009 | #endif | |
3010 | ||
28ef6c31 | 3011 | static int |
726f6388 JA |
3012 | filename_completion_ignore (names) |
3013 | char **names; | |
3014 | { | |
b72432fd JA |
3015 | #if 0 |
3016 | if (glob_dot_filenames == 0) | |
3017 | _ignore_completion_names (names, ignore_dot_names); | |
3018 | #endif | |
3019 | ||
ccc6cda3 | 3020 | setup_ignore_patterns (&fignore); |
726f6388 | 3021 | |
ccc6cda3 | 3022 | if (fignore.num_ignores == 0) |
28ef6c31 | 3023 | return 0; |
726f6388 | 3024 | |
ccc6cda3 | 3025 | _ignore_completion_names (names, name_is_acceptable); |
28ef6c31 JA |
3026 | |
3027 | return 0; | |
726f6388 JA |
3028 | } |
3029 | ||
3185942a | 3030 | /* Return 1 if NAME is a directory. NAME undergoes tilde expansion. */ |
726f6388 JA |
3031 | static int |
3032 | test_for_directory (name) | |
f73dda09 | 3033 | const char *name; |
726f6388 | 3034 | { |
726f6388 | 3035 | char *fn; |
3185942a | 3036 | int r; |
726f6388 | 3037 | |
7117c2d2 | 3038 | fn = bash_tilde_expand (name, 0); |
3185942a | 3039 | r = file_isdir (fn); |
726f6388 | 3040 | free (fn); |
3185942a JA |
3041 | |
3042 | return (r); | |
726f6388 JA |
3043 | } |
3044 | ||
8868edaf CR |
3045 | static int |
3046 | test_for_canon_directory (name) | |
3047 | const char *name; | |
3048 | { | |
3049 | char *fn; | |
3050 | int r; | |
3051 | ||
3052 | fn = (*name == '~') ? bash_tilde_expand (name, 0) : savestring (name); | |
3053 | bash_filename_stat_hook (&fn); | |
3054 | r = file_isdir (fn); | |
3055 | free (fn); | |
3056 | ||
3057 | return (r); | |
3058 | } | |
3059 | ||
726f6388 | 3060 | /* Remove files from NAMES, leaving directories. */ |
28ef6c31 | 3061 | static int |
726f6388 JA |
3062 | bash_ignore_filenames (names) |
3063 | char **names; | |
3064 | { | |
ccc6cda3 | 3065 | _ignore_completion_names (names, test_for_directory); |
28ef6c31 | 3066 | return 0; |
726f6388 JA |
3067 | } |
3068 | ||
8868edaf CR |
3069 | static int |
3070 | bash_progcomp_ignore_filenames (names) | |
3071 | char **names; | |
3072 | { | |
3073 | _ignore_completion_names (names, test_for_canon_directory); | |
3074 | return 0; | |
3075 | } | |
3076 | ||
bb70624e JA |
3077 | static int |
3078 | return_zero (name) | |
f73dda09 | 3079 | const char *name; |
bb70624e JA |
3080 | { |
3081 | return 0; | |
3082 | } | |
3083 | ||
28ef6c31 | 3084 | static int |
bb70624e JA |
3085 | bash_ignore_everything (names) |
3086 | char **names; | |
3087 | { | |
3088 | _ignore_completion_names (names, return_zero); | |
28ef6c31 | 3089 | return 0; |
bb70624e JA |
3090 | } |
3091 | ||
3185942a JA |
3092 | /* Replace a tilde-prefix in VAL with a `~', assuming the user typed it. VAL |
3093 | is an expanded filename. DIRECTORY_PART is the tilde-prefix portion | |
3094 | of the un-tilde-expanded version of VAL (what the user typed). */ | |
3095 | static char * | |
3096 | restore_tilde (val, directory_part) | |
3097 | char *val, *directory_part; | |
3098 | { | |
3099 | int l, vl, dl2, xl; | |
d233b485 | 3100 | char *dh2, *expdir, *ret, *v; |
3185942a JA |
3101 | |
3102 | vl = strlen (val); | |
3103 | ||
3104 | /* We need to duplicate the expansions readline performs on the directory | |
3105 | portion before passing it to our completion function. */ | |
3106 | dh2 = directory_part ? bash_dequote_filename (directory_part, 0) : 0; | |
3107 | bash_directory_expansion (&dh2); | |
3108 | dl2 = strlen (dh2); | |
3109 | ||
3110 | expdir = bash_tilde_expand (directory_part, 0); | |
3111 | xl = strlen (expdir); | |
d233b485 CR |
3112 | if (*directory_part == '~' && STREQ (directory_part, expdir)) |
3113 | { | |
3114 | /* tilde expansion failed, so what should we return? we use what the | |
3115 | user typed. */ | |
3116 | v = mbschr (val, '/'); | |
3117 | vl = STRLEN (v); | |
3118 | ret = (char *)xmalloc (xl + vl + 2); | |
3119 | strcpy (ret, directory_part); | |
3120 | if (v && *v) | |
3121 | strcpy (ret + xl, v); | |
3122 | ||
3123 | free (dh2); | |
3124 | free (expdir); | |
3125 | ||
3126 | return ret; | |
3127 | } | |
3185942a JA |
3128 | free (expdir); |
3129 | ||
3130 | /* | |
3131 | dh2 = unexpanded but dequoted tilde-prefix | |
3132 | dl2 = length of tilde-prefix | |
3133 | expdir = tilde-expanded tilde-prefix | |
3134 | xl = length of expanded tilde-prefix | |
3135 | l = length of remainder after tilde-prefix | |
3136 | */ | |
3137 | l = (vl - xl) + 1; | |
d233b485 CR |
3138 | if (l <= 0) |
3139 | { | |
3140 | free (dh2); | |
3141 | return (savestring (val)); /* XXX - just punt */ | |
3142 | } | |
3185942a JA |
3143 | |
3144 | ret = (char *)xmalloc (dl2 + 2 + l); | |
3145 | strcpy (ret, dh2); | |
3146 | strcpy (ret + dl2, val + xl); | |
3147 | ||
3148 | free (dh2); | |
3149 | return (ret); | |
3150 | } | |
3151 | ||
ac50fbac CR |
3152 | static char * |
3153 | maybe_restore_tilde (val, directory_part) | |
3154 | char *val, *directory_part; | |
3155 | { | |
3156 | rl_icppfunc_t *save; | |
3157 | char *ret; | |
3158 | ||
3159 | save = (dircomplete_expand == 0) ? save_directory_hook () : (rl_icppfunc_t *)0; | |
3160 | ret = restore_tilde (val, directory_part); | |
3161 | if (save) | |
3162 | restore_directory_hook (save); | |
3163 | return ret; | |
3164 | } | |
3165 | ||
eb873671 JA |
3166 | /* Simulate the expansions that will be performed by |
3167 | rl_filename_completion_function. This must be called with the address of | |
3168 | a pointer to malloc'd memory. */ | |
95732b49 | 3169 | static void |
eb873671 JA |
3170 | bash_directory_expansion (dirname) |
3171 | char **dirname; | |
3172 | { | |
0628567a | 3173 | char *d, *nd; |
eb873671 JA |
3174 | |
3175 | d = savestring (*dirname); | |
3176 | ||
ac50fbac CR |
3177 | if ((rl_directory_rewrite_hook) && (*rl_directory_rewrite_hook) (&d)) |
3178 | { | |
3179 | free (*dirname); | |
3180 | *dirname = d; | |
3181 | } | |
495aee44 | 3182 | else if (rl_directory_completion_hook && (*rl_directory_completion_hook) (&d)) |
eb873671 JA |
3183 | { |
3184 | free (*dirname); | |
3185 | *dirname = d; | |
3186 | } | |
0628567a JA |
3187 | else if (rl_completion_found_quote) |
3188 | { | |
3189 | nd = bash_dequote_filename (d, rl_completion_quote_character); | |
3190 | free (*dirname); | |
3191 | free (d); | |
3192 | *dirname = nd; | |
3193 | } | |
eb873671 | 3194 | } |
3185942a | 3195 | |
0001803f CR |
3196 | /* If necessary, rewrite directory entry */ |
3197 | static char * | |
3198 | bash_filename_rewrite_hook (fname, fnlen) | |
3199 | char *fname; | |
3200 | int fnlen; | |
3201 | { | |
3202 | char *conv; | |
3203 | ||
3204 | conv = fnx_fromfs (fname, fnlen); | |
3205 | if (conv != fname) | |
3206 | conv = savestring (conv); | |
3207 | return conv; | |
3208 | } | |
3209 | ||
16b2d7f4 CR |
3210 | /* Functions to save and restore the appropriate directory hook */ |
3211 | /* This is not static so the shopt code can call it */ | |
3212 | void | |
3213 | set_directory_hook () | |
3214 | { | |
3215 | if (dircomplete_expand) | |
3216 | { | |
3217 | rl_directory_completion_hook = bash_directory_completion_hook; | |
3218 | rl_directory_rewrite_hook = (rl_icppfunc_t *)0; | |
3219 | } | |
3220 | else | |
3221 | { | |
3222 | rl_directory_rewrite_hook = bash_directory_completion_hook; | |
3223 | rl_directory_completion_hook = (rl_icppfunc_t *)0; | |
3224 | } | |
3225 | } | |
3226 | ||
3227 | static rl_icppfunc_t * | |
3228 | save_directory_hook () | |
3229 | { | |
3230 | rl_icppfunc_t *ret; | |
3231 | ||
3232 | if (dircomplete_expand) | |
3233 | { | |
3234 | ret = rl_directory_completion_hook; | |
3235 | rl_directory_completion_hook = (rl_icppfunc_t *)NULL; | |
3236 | } | |
3237 | else | |
3238 | { | |
3239 | ret = rl_directory_rewrite_hook; | |
3240 | rl_directory_rewrite_hook = (rl_icppfunc_t *)NULL; | |
3241 | } | |
3242 | ||
3243 | return ret; | |
3244 | } | |
3245 | ||
3246 | static void | |
3247 | restore_directory_hook (hookf) | |
3248 | rl_icppfunc_t *hookf; | |
3249 | { | |
3250 | if (dircomplete_expand) | |
3251 | rl_directory_completion_hook = hookf; | |
3252 | else | |
3253 | rl_directory_rewrite_hook = hookf; | |
3254 | } | |
3255 | ||
4f747edc CR |
3256 | /* Check whether not DIRNAME, with any trailing slash removed, exists. If |
3257 | SHOULD_DEQUOTE is non-zero, we dequote the directory name first. */ | |
a0c0a00f | 3258 | static int |
4f747edc | 3259 | directory_exists (dirname, should_dequote) |
a0c0a00f | 3260 | const char *dirname; |
4f747edc | 3261 | int should_dequote; |
a0c0a00f CR |
3262 | { |
3263 | char *new_dirname; | |
3264 | int dirlen, r; | |
3265 | struct stat sb; | |
3266 | ||
4f747edc CR |
3267 | /* We save the string and chop the trailing slash because stat/lstat behave |
3268 | inconsistently if one is present. */ | |
3269 | new_dirname = should_dequote ? bash_dequote_filename ((char *)dirname, rl_completion_quote_character) : savestring (dirname); | |
a0c0a00f CR |
3270 | dirlen = STRLEN (new_dirname); |
3271 | if (new_dirname[dirlen - 1] == '/') | |
3272 | new_dirname[dirlen - 1] = '\0'; | |
3273 | #if defined (HAVE_LSTAT) | |
3274 | r = lstat (new_dirname, &sb) == 0; | |
3275 | #else | |
3276 | r = stat (new_dirname, &sb) == 0; | |
3277 | #endif | |
3278 | free (new_dirname); | |
3279 | return (r); | |
3280 | } | |
3281 | ||
ac50fbac CR |
3282 | /* Expand a filename before the readline completion code passes it to stat(2). |
3283 | The filename will already have had tilde expansion performed. */ | |
3284 | static int | |
3285 | bash_filename_stat_hook (dirname) | |
3286 | char **dirname; | |
3287 | { | |
3288 | char *local_dirname, *new_dirname, *t; | |
3289 | int should_expand_dirname, return_value; | |
a0c0a00f | 3290 | int global_nounset; |
ac50fbac | 3291 | WORD_LIST *wl; |
ac50fbac CR |
3292 | |
3293 | local_dirname = *dirname; | |
3294 | should_expand_dirname = return_value = 0; | |
3295 | if (t = mbschr (local_dirname, '$')) | |
3296 | should_expand_dirname = '$'; | |
3297 | else if (t = mbschr (local_dirname, '`')) /* XXX */ | |
3298 | should_expand_dirname = '`'; | |
3299 | ||
4f747edc | 3300 | if (should_expand_dirname && directory_exists (local_dirname, 0)) |
ac50fbac CR |
3301 | should_expand_dirname = 0; |
3302 | ||
3303 | if (should_expand_dirname) | |
3304 | { | |
3305 | new_dirname = savestring (local_dirname); | |
a0c0a00f CR |
3306 | /* no error messages, and expand_prompt_string doesn't longjmp so we don't |
3307 | have to worry about restoring this setting. */ | |
3308 | global_nounset = unbound_vars_is_error; | |
3309 | unbound_vars_is_error = 0; | |
4f747edc | 3310 | wl = expand_prompt_string (new_dirname, 0, W_NOCOMSUB|W_NOPROCSUB|W_COMPLETE); /* does the right thing */ |
a0c0a00f | 3311 | unbound_vars_is_error = global_nounset; |
ac50fbac CR |
3312 | if (wl) |
3313 | { | |
3314 | free (new_dirname); | |
3315 | new_dirname = string_list (wl); | |
3316 | /* Tell the completer we actually expanded something and change | |
3317 | *dirname only if we expanded to something non-null -- stat | |
3318 | behaves unpredictably when passed null or empty strings */ | |
3319 | if (new_dirname && *new_dirname) | |
3320 | { | |
3321 | free (local_dirname); /* XXX */ | |
3322 | local_dirname = *dirname = new_dirname; | |
3323 | return_value = STREQ (local_dirname, *dirname) == 0; | |
3324 | } | |
3325 | else | |
3326 | free (new_dirname); | |
3327 | dispose_words (wl); | |
3328 | } | |
3329 | else | |
3330 | free (new_dirname); | |
3331 | } | |
3332 | ||
3333 | /* This is very similar to the code in bash_directory_completion_hook below, | |
3334 | but without spelling correction and not worrying about whether or not | |
3335 | we change relative pathnames. */ | |
3336 | if (no_symbolic_links == 0 && (local_dirname[0] != '.' || local_dirname[1])) | |
3337 | { | |
3338 | char *temp1, *temp2; | |
3339 | ||
3340 | t = get_working_directory ("symlink-hook"); | |
3341 | temp1 = make_absolute (local_dirname, t); | |
3342 | free (t); | |
3343 | temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); | |
3344 | ||
3345 | /* If we can't canonicalize, bail. */ | |
3346 | if (temp2 == 0) | |
3347 | { | |
3348 | free (temp1); | |
3349 | return return_value; | |
3350 | } | |
3351 | ||
3352 | free (local_dirname); | |
3353 | *dirname = temp2; | |
3354 | free (temp1); | |
3355 | } | |
3356 | ||
3357 | return (return_value); | |
3358 | } | |
3359 | ||
726f6388 | 3360 | /* Handle symbolic link references and other directory name |
495aee44 CR |
3361 | expansions while hacking completion. This should return 1 if it modifies |
3362 | the DIRNAME argument, 0 otherwise. It should make sure not to modify | |
3363 | DIRNAME if it returns 0. */ | |
726f6388 JA |
3364 | static int |
3365 | bash_directory_completion_hook (dirname) | |
3366 | char **dirname; | |
3367 | { | |
b72432fd | 3368 | char *local_dirname, *new_dirname, *t; |
d233b485 | 3369 | int return_value, should_expand_dirname, nextch, closer; |
726f6388 JA |
3370 | WORD_LIST *wl; |
3371 | ||
16b2d7f4 | 3372 | return_value = should_expand_dirname = nextch = closer = 0; |
726f6388 | 3373 | local_dirname = *dirname; |
bb70624e | 3374 | |
16b2d7f4 CR |
3375 | if (t = mbschr (local_dirname, '$')) |
3376 | { | |
3377 | should_expand_dirname = '$'; | |
3378 | nextch = t[1]; | |
3379 | /* Deliberately does not handle the deprecated $[...] arithmetic | |
3380 | expansion syntax */ | |
3381 | if (nextch == '(') | |
3382 | closer = ')'; | |
3383 | else if (nextch == '{') | |
3384 | closer = '}'; | |
3385 | else | |
3386 | nextch = 0; | |
d233b485 CR |
3387 | |
3388 | if (closer) | |
3389 | { | |
3390 | int p; | |
3391 | char delims[2]; | |
3392 | ||
3393 | delims[0] = closer; delims[1] = 0; | |
3394 | p = skip_to_delim (t, 1, delims, SD_NOJMP|SD_COMPLETE); | |
3395 | if (t[p] != closer) | |
3396 | should_expand_dirname = 0; | |
3397 | } | |
16b2d7f4 | 3398 | } |
ac50fbac CR |
3399 | else if (local_dirname[0] == '~') |
3400 | should_expand_dirname = '~'; | |
bb70624e JA |
3401 | else |
3402 | { | |
0001803f | 3403 | t = mbschr (local_dirname, '`'); |
bb70624e | 3404 | if (t && unclosed_pair (local_dirname, strlen (local_dirname), "`") == 0) |
16b2d7f4 | 3405 | should_expand_dirname = '`'; |
bb70624e | 3406 | } |
bb70624e | 3407 | |
4f747edc | 3408 | if (should_expand_dirname && directory_exists (local_dirname, 1)) |
b80f6443 JA |
3409 | should_expand_dirname = 0; |
3410 | ||
bb70624e | 3411 | if (should_expand_dirname) |
726f6388 | 3412 | { |
bb70624e | 3413 | new_dirname = savestring (local_dirname); |
4f747edc | 3414 | wl = expand_prompt_string (new_dirname, 0, W_NOCOMSUB|W_NOPROCSUB|W_COMPLETE); /* does the right thing */ |
726f6388 JA |
3415 | if (wl) |
3416 | { | |
3417 | *dirname = string_list (wl); | |
3418 | /* Tell the completer to replace the directory name only if we | |
3419 | actually expanded something. */ | |
3420 | return_value = STREQ (local_dirname, *dirname) == 0; | |
3421 | free (local_dirname); | |
b72432fd | 3422 | free (new_dirname); |
726f6388 JA |
3423 | dispose_words (wl); |
3424 | local_dirname = *dirname; | |
16b2d7f4 CR |
3425 | /* XXX - change rl_filename_quote_characters here based on |
3426 | should_expand_dirname/nextch/closer. This is the only place | |
3427 | custom_filename_quote_characters is modified. */ | |
3428 | if (rl_filename_quote_characters && *rl_filename_quote_characters) | |
3429 | { | |
3430 | int i, j, c; | |
3431 | i = strlen (default_filename_quote_characters); | |
3432 | custom_filename_quote_characters = xrealloc (custom_filename_quote_characters, i+1); | |
3433 | for (i = j = 0; c = default_filename_quote_characters[i]; i++) | |
3434 | { | |
3435 | if (c == should_expand_dirname || c == nextch || c == closer) | |
3436 | continue; | |
3437 | custom_filename_quote_characters[j++] = c; | |
3438 | } | |
3439 | custom_filename_quote_characters[j] = '\0'; | |
3440 | rl_filename_quote_characters = custom_filename_quote_characters; | |
ac50fbac | 3441 | set_filename_bstab (rl_filename_quote_characters); |
16b2d7f4 | 3442 | } |
726f6388 JA |
3443 | } |
3444 | else | |
3445 | { | |
b72432fd | 3446 | free (new_dirname); |
726f6388 | 3447 | free (local_dirname); |
f73dda09 | 3448 | *dirname = (char *)xmalloc (1); |
ccc6cda3 | 3449 | **dirname = '\0'; |
726f6388 JA |
3450 | return 1; |
3451 | } | |
3452 | } | |
0628567a JA |
3453 | else |
3454 | { | |
3455 | /* Dequote the filename even if we don't expand it. */ | |
3456 | new_dirname = bash_dequote_filename (local_dirname, rl_completion_quote_character); | |
495aee44 | 3457 | return_value = STREQ (local_dirname, new_dirname) == 0; |
0628567a JA |
3458 | free (local_dirname); |
3459 | local_dirname = *dirname = new_dirname; | |
3460 | } | |
726f6388 | 3461 | |
16b2d7f4 CR |
3462 | /* no_symbolic_links == 0 -> use (default) logical view of the file system. |
3463 | local_dirname[0] == '.' && local_dirname[1] == '/' means files in the | |
3464 | current directory (./). | |
3465 | local_dirname[0] == '.' && local_dirname[1] == 0 means relative pathnames | |
3466 | in the current directory (e.g., lib/sh). | |
3467 | XXX - should we do spelling correction on these? */ | |
3468 | ||
3469 | /* This is test as it was in bash-4.2: skip relative pathnames in current | |
3470 | directory. Change test to | |
3471 | (local_dirname[0] != '.' || (local_dirname[1] && local_dirname[1] != '/')) | |
3472 | if we want to skip paths beginning with ./ also. */ | |
3185942a | 3473 | if (no_symbolic_links == 0 && (local_dirname[0] != '.' || local_dirname[1])) |
726f6388 JA |
3474 | { |
3475 | char *temp1, *temp2; | |
3476 | int len1, len2; | |
3477 | ||
16b2d7f4 CR |
3478 | /* If we have a relative path |
3479 | (local_dirname[0] != '/' && local_dirname[0] != '.') | |
3480 | that is canonical after appending it to the current directory, then | |
3481 | temp1 = temp2+'/' | |
3482 | That is, | |
3483 | strcmp (temp1, temp2) == 0 | |
3484 | after adding a slash to temp2 below. It should be safe to not | |
3485 | change those. | |
3486 | */ | |
726f6388 JA |
3487 | t = get_working_directory ("symlink-hook"); |
3488 | temp1 = make_absolute (local_dirname, t); | |
3489 | free (t); | |
28ef6c31 | 3490 | temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); |
3185942a | 3491 | |
ac50fbac CR |
3492 | /* Try spelling correction if initial canonicalization fails. Make |
3493 | sure we are set to replace the directory name with the results so | |
3494 | subsequent directory checks don't fail. */ | |
3495 | if (temp2 == 0 && dircomplete_spelling && dircomplete_expand) | |
3185942a JA |
3496 | { |
3497 | temp2 = dirspell (temp1); | |
3498 | if (temp2) | |
3499 | { | |
3500 | free (temp1); | |
3501 | temp1 = temp2; | |
3502 | temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS); | |
495aee44 | 3503 | return_value |= temp2 != 0; |
3185942a JA |
3504 | } |
3505 | } | |
ccc6cda3 JA |
3506 | /* If we can't canonicalize, bail. */ |
3507 | if (temp2 == 0) | |
3508 | { | |
3509 | free (temp1); | |
495aee44 | 3510 | return return_value; |
ccc6cda3 | 3511 | } |
726f6388 JA |
3512 | len1 = strlen (temp1); |
3513 | if (temp1[len1 - 1] == '/') | |
28ef6c31 | 3514 | { |
726f6388 | 3515 | len2 = strlen (temp2); |
95732b49 JA |
3516 | if (len2 > 2) /* don't append `/' to `/' or `//' */ |
3517 | { | |
3518 | temp2 = (char *)xrealloc (temp2, len2 + 2); | |
3519 | temp2[len2] = '/'; | |
3520 | temp2[len2 + 1] = '\0'; | |
3521 | } | |
28ef6c31 | 3522 | } |
16b2d7f4 CR |
3523 | |
3524 | /* dircomplete_expand_relpath == 0 means we want to leave relative | |
3525 | pathnames that are unchanged by canonicalization alone. | |
3526 | *local_dirname != '/' && *local_dirname != '.' == relative pathname | |
3527 | (consistent with general.c:absolute_pathname()) | |
3528 | temp1 == temp2 (after appending a slash to temp2) means the pathname | |
3529 | is not changed by canonicalization as described above. */ | |
3530 | if (dircomplete_expand_relpath || ((local_dirname[0] != '/' && local_dirname[0] != '.') && STREQ (temp1, temp2) == 0)) | |
3531 | return_value |= STREQ (local_dirname, temp2) == 0; | |
726f6388 JA |
3532 | free (local_dirname); |
3533 | *dirname = temp2; | |
3534 | free (temp1); | |
3535 | } | |
495aee44 | 3536 | |
726f6388 JA |
3537 | return (return_value); |
3538 | } | |
3539 | ||
726f6388 | 3540 | static char **history_completion_array = (char **)NULL; |
ccc6cda3 JA |
3541 | static int harry_size; |
3542 | static int harry_len; | |
726f6388 JA |
3543 | |
3544 | static void | |
3545 | build_history_completion_array () | |
3546 | { | |
ccc6cda3 JA |
3547 | register int i, j; |
3548 | HIST_ENTRY **hlist; | |
3549 | char **tokens; | |
726f6388 JA |
3550 | |
3551 | /* First, clear out the current dynamic history completion list. */ | |
3552 | if (harry_size) | |
3553 | { | |
7117c2d2 | 3554 | strvec_dispose (history_completion_array); |
726f6388 JA |
3555 | history_completion_array = (char **)NULL; |
3556 | harry_size = 0; | |
3557 | harry_len = 0; | |
3558 | } | |
3559 | ||
3560 | /* Next, grovel each line of history, making each shell-sized token | |
3561 | a separate entry in the history_completion_array. */ | |
ccc6cda3 | 3562 | hlist = history_list (); |
726f6388 | 3563 | |
ccc6cda3 JA |
3564 | if (hlist) |
3565 | { | |
3566 | for (i = 0; hlist[i]; i++) | |
0001803f CR |
3567 | ; |
3568 | for ( --i; i >= 0; i--) | |
ccc6cda3 JA |
3569 | { |
3570 | /* Separate each token, and place into an array. */ | |
3571 | tokens = history_tokenize (hlist[i]->line); | |
726f6388 | 3572 | |
ccc6cda3 JA |
3573 | for (j = 0; tokens && tokens[j]; j++) |
3574 | { | |
3575 | if (harry_len + 2 > harry_size) | |
7117c2d2 | 3576 | history_completion_array = strvec_resize (history_completion_array, harry_size += 10); |
726f6388 | 3577 | |
ccc6cda3 JA |
3578 | history_completion_array[harry_len++] = tokens[j]; |
3579 | history_completion_array[harry_len] = (char *)NULL; | |
3580 | } | |
3581 | free (tokens); | |
3582 | } | |
726f6388 | 3583 | |
ccc6cda3 | 3584 | /* Sort the complete list of tokens. */ |
0001803f CR |
3585 | if (dabbrev_expand_active == 0) |
3586 | qsort (history_completion_array, harry_len, sizeof (char *), (QSFUNC *)strvec_strcmp); | |
ccc6cda3 | 3587 | } |
726f6388 JA |
3588 | } |
3589 | ||
3590 | static char * | |
3591 | history_completion_generator (hint_text, state) | |
f73dda09 | 3592 | const char *hint_text; |
726f6388 JA |
3593 | int state; |
3594 | { | |
ccc6cda3 | 3595 | static int local_index, len; |
f73dda09 | 3596 | static const char *text; |
726f6388 JA |
3597 | |
3598 | /* If this is the first call to the generator, then initialize the | |
3599 | list of strings to complete over. */ | |
ccc6cda3 | 3600 | if (state == 0) |
726f6388 | 3601 | { |
0001803f CR |
3602 | if (dabbrev_expand_active) /* This is kind of messy */ |
3603 | rl_completion_suppress_append = 1; | |
726f6388 JA |
3604 | local_index = 0; |
3605 | build_history_completion_array (); | |
3606 | text = hint_text; | |
3607 | len = strlen (text); | |
3608 | } | |
3609 | ||
3610 | while (history_completion_array && history_completion_array[local_index]) | |
3611 | { | |
d233b485 | 3612 | /* XXX - should this use completion-ignore-case? */ |
726f6388 JA |
3613 | if (strncmp (text, history_completion_array[local_index++], len) == 0) |
3614 | return (savestring (history_completion_array[local_index - 1])); | |
3615 | } | |
3616 | return ((char *)NULL); | |
3617 | } | |
3618 | ||
28ef6c31 | 3619 | static int |
726f6388 JA |
3620 | dynamic_complete_history (count, key) |
3621 | int count, key; | |
3622 | { | |
f73dda09 | 3623 | int r; |
28ef6c31 JA |
3624 | rl_compentry_func_t *orig_func; |
3625 | rl_completion_func_t *orig_attempt_func; | |
495aee44 | 3626 | rl_compignore_func_t *orig_ignore_func; |
726f6388 JA |
3627 | |
3628 | orig_func = rl_completion_entry_function; | |
3629 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3630 | orig_ignore_func = rl_ignore_some_completions_function; |
3185942a | 3631 | |
28ef6c31 JA |
3632 | rl_completion_entry_function = history_completion_generator; |
3633 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
495aee44 | 3634 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 | 3635 | |
7117c2d2 | 3636 | /* XXX - use rl_completion_mode here? */ |
28ef6c31 | 3637 | if (rl_last_func == dynamic_complete_history) |
f73dda09 | 3638 | r = rl_complete_internal ('?'); |
726f6388 | 3639 | else |
f73dda09 | 3640 | r = rl_complete_internal (TAB); |
726f6388 JA |
3641 | |
3642 | rl_completion_entry_function = orig_func; | |
3643 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 CR |
3644 | rl_ignore_some_completions_function = orig_ignore_func; |
3645 | ||
f73dda09 | 3646 | return r; |
726f6388 JA |
3647 | } |
3648 | ||
3185942a JA |
3649 | static int |
3650 | bash_dabbrev_expand (count, key) | |
3651 | int count, key; | |
3652 | { | |
0001803f | 3653 | int r, orig_suppress, orig_sort; |
3185942a JA |
3654 | rl_compentry_func_t *orig_func; |
3655 | rl_completion_func_t *orig_attempt_func; | |
495aee44 | 3656 | rl_compignore_func_t *orig_ignore_func; |
3185942a JA |
3657 | |
3658 | orig_func = rl_menu_completion_entry_function; | |
3659 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3660 | orig_ignore_func = rl_ignore_some_completions_function; |
0001803f CR |
3661 | orig_suppress = rl_completion_suppress_append; |
3662 | orig_sort = rl_sort_completion_matches; | |
3185942a JA |
3663 | |
3664 | rl_menu_completion_entry_function = history_completion_generator; | |
3665 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
495aee44 | 3666 | rl_ignore_some_completions_function = filename_completion_ignore; |
3185942a | 3667 | rl_filename_completion_desired = 0; |
0001803f CR |
3668 | rl_completion_suppress_append = 1; |
3669 | rl_sort_completion_matches = 0; | |
3185942a JA |
3670 | |
3671 | /* XXX - use rl_completion_mode here? */ | |
0001803f | 3672 | dabbrev_expand_active = 1; |
3185942a JA |
3673 | if (rl_last_func == bash_dabbrev_expand) |
3674 | rl_last_func = rl_menu_complete; | |
3675 | r = rl_menu_complete (count, key); | |
0001803f | 3676 | dabbrev_expand_active = 0; |
3185942a JA |
3677 | |
3678 | rl_last_func = bash_dabbrev_expand; | |
3679 | rl_menu_completion_entry_function = orig_func; | |
3680 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 | 3681 | rl_ignore_some_completions_function = orig_ignore_func; |
0001803f CR |
3682 | rl_completion_suppress_append = orig_suppress; |
3683 | rl_sort_completion_matches = orig_sort; | |
3185942a JA |
3684 | |
3685 | return r; | |
3686 | } | |
3687 | ||
726f6388 | 3688 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) |
28ef6c31 | 3689 | static int |
726f6388 JA |
3690 | bash_complete_username (ignore, ignore2) |
3691 | int ignore, ignore2; | |
3692 | { | |
7117c2d2 | 3693 | return bash_complete_username_internal (rl_completion_mode (bash_complete_username)); |
726f6388 JA |
3694 | } |
3695 | ||
28ef6c31 | 3696 | static int |
726f6388 JA |
3697 | bash_possible_username_completions (ignore, ignore2) |
3698 | int ignore, ignore2; | |
3699 | { | |
28ef6c31 | 3700 | return bash_complete_username_internal ('?'); |
726f6388 JA |
3701 | } |
3702 | ||
28ef6c31 | 3703 | static int |
726f6388 JA |
3704 | bash_complete_username_internal (what_to_do) |
3705 | int what_to_do; | |
3706 | { | |
28ef6c31 | 3707 | return bash_specific_completion (what_to_do, rl_username_completion_function); |
726f6388 JA |
3708 | } |
3709 | ||
28ef6c31 | 3710 | static int |
726f6388 JA |
3711 | bash_complete_filename (ignore, ignore2) |
3712 | int ignore, ignore2; | |
3713 | { | |
7117c2d2 | 3714 | return bash_complete_filename_internal (rl_completion_mode (bash_complete_filename)); |
726f6388 JA |
3715 | } |
3716 | ||
28ef6c31 | 3717 | static int |
726f6388 JA |
3718 | bash_possible_filename_completions (ignore, ignore2) |
3719 | int ignore, ignore2; | |
3720 | { | |
28ef6c31 | 3721 | return bash_complete_filename_internal ('?'); |
726f6388 JA |
3722 | } |
3723 | ||
28ef6c31 | 3724 | static int |
726f6388 JA |
3725 | bash_complete_filename_internal (what_to_do) |
3726 | int what_to_do; | |
3727 | { | |
28ef6c31 JA |
3728 | rl_compentry_func_t *orig_func; |
3729 | rl_completion_func_t *orig_attempt_func; | |
3730 | rl_icppfunc_t *orig_dir_func; | |
495aee44 | 3731 | rl_compignore_func_t *orig_ignore_func; |
b80f6443 | 3732 | /*const*/ char *orig_rl_completer_word_break_characters; |
28ef6c31 | 3733 | int r; |
726f6388 JA |
3734 | |
3735 | orig_func = rl_completion_entry_function; | |
3736 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3737 | orig_ignore_func = rl_ignore_some_completions_function; |
726f6388 | 3738 | orig_rl_completer_word_break_characters = rl_completer_word_break_characters; |
16b2d7f4 CR |
3739 | |
3740 | orig_dir_func = save_directory_hook (); | |
3741 | ||
28ef6c31 JA |
3742 | rl_completion_entry_function = rl_filename_completion_function; |
3743 | rl_attempted_completion_function = (rl_completion_func_t *)NULL; | |
495aee44 | 3744 | rl_ignore_some_completions_function = filename_completion_ignore; |
726f6388 JA |
3745 | rl_completer_word_break_characters = " \t\n\"\'"; |
3746 | ||
28ef6c31 | 3747 | r = rl_complete_internal (what_to_do); |
726f6388 JA |
3748 | |
3749 | rl_completion_entry_function = orig_func; | |
3750 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 | 3751 | rl_ignore_some_completions_function = orig_ignore_func; |
726f6388 | 3752 | rl_completer_word_break_characters = orig_rl_completer_word_break_characters; |
28ef6c31 | 3753 | |
16b2d7f4 CR |
3754 | restore_directory_hook (orig_dir_func); |
3755 | ||
28ef6c31 | 3756 | return r; |
726f6388 JA |
3757 | } |
3758 | ||
28ef6c31 | 3759 | static int |
726f6388 JA |
3760 | bash_complete_hostname (ignore, ignore2) |
3761 | int ignore, ignore2; | |
3762 | { | |
7117c2d2 | 3763 | return bash_complete_hostname_internal (rl_completion_mode (bash_complete_hostname)); |
726f6388 JA |
3764 | } |
3765 | ||
28ef6c31 | 3766 | static int |
726f6388 JA |
3767 | bash_possible_hostname_completions (ignore, ignore2) |
3768 | int ignore, ignore2; | |
3769 | { | |
28ef6c31 | 3770 | return bash_complete_hostname_internal ('?'); |
726f6388 JA |
3771 | } |
3772 | ||
28ef6c31 | 3773 | static int |
726f6388 JA |
3774 | bash_complete_variable (ignore, ignore2) |
3775 | int ignore, ignore2; | |
3776 | { | |
7117c2d2 | 3777 | return bash_complete_variable_internal (rl_completion_mode (bash_complete_variable)); |
726f6388 JA |
3778 | } |
3779 | ||
28ef6c31 | 3780 | static int |
726f6388 JA |
3781 | bash_possible_variable_completions (ignore, ignore2) |
3782 | int ignore, ignore2; | |
3783 | { | |
28ef6c31 | 3784 | return bash_complete_variable_internal ('?'); |
726f6388 JA |
3785 | } |
3786 | ||
28ef6c31 | 3787 | static int |
726f6388 JA |
3788 | bash_complete_command (ignore, ignore2) |
3789 | int ignore, ignore2; | |
3790 | { | |
7117c2d2 | 3791 | return bash_complete_command_internal (rl_completion_mode (bash_complete_command)); |
726f6388 JA |
3792 | } |
3793 | ||
28ef6c31 | 3794 | static int |
726f6388 JA |
3795 | bash_possible_command_completions (ignore, ignore2) |
3796 | int ignore, ignore2; | |
3797 | { | |
28ef6c31 | 3798 | return bash_complete_command_internal ('?'); |
726f6388 JA |
3799 | } |
3800 | ||
28ef6c31 | 3801 | static int |
726f6388 JA |
3802 | bash_complete_hostname_internal (what_to_do) |
3803 | int what_to_do; | |
3804 | { | |
28ef6c31 | 3805 | return bash_specific_completion (what_to_do, hostname_completion_function); |
726f6388 JA |
3806 | } |
3807 | ||
28ef6c31 | 3808 | static int |
726f6388 JA |
3809 | bash_complete_variable_internal (what_to_do) |
3810 | int what_to_do; | |
3811 | { | |
28ef6c31 | 3812 | return bash_specific_completion (what_to_do, variable_completion_function); |
726f6388 JA |
3813 | } |
3814 | ||
28ef6c31 | 3815 | static int |
726f6388 JA |
3816 | bash_complete_command_internal (what_to_do) |
3817 | int what_to_do; | |
3818 | { | |
28ef6c31 | 3819 | return bash_specific_completion (what_to_do, command_word_completion_function); |
726f6388 JA |
3820 | } |
3821 | ||
4d2e3154 CR |
3822 | static int |
3823 | completion_glob_pattern (string) | |
3824 | char *string; | |
3825 | { | |
8868edaf | 3826 | return (glob_pattern_p (string) == 1); |
4d2e3154 CR |
3827 | } |
3828 | ||
7117c2d2 JA |
3829 | static char *globtext; |
3830 | static char *globorig; | |
3831 | ||
ccc6cda3 JA |
3832 | static char * |
3833 | glob_complete_word (text, state) | |
28ef6c31 | 3834 | const char *text; |
ccc6cda3 JA |
3835 | int state; |
3836 | { | |
3837 | static char **matches = (char **)NULL; | |
3838 | static int ind; | |
7117c2d2 | 3839 | int glen; |
eb873671 | 3840 | char *ret, *ttext; |
ccc6cda3 JA |
3841 | |
3842 | if (state == 0) | |
3843 | { | |
e8ce775d | 3844 | rl_filename_completion_desired = 1; |
7117c2d2 JA |
3845 | FREE (matches); |
3846 | if (globorig != globtext) | |
3847 | FREE (globorig); | |
3848 | FREE (globtext); | |
3849 | ||
eb873671 JA |
3850 | ttext = bash_tilde_expand (text, 0); |
3851 | ||
7117c2d2 JA |
3852 | if (rl_explicit_arg) |
3853 | { | |
eb873671 JA |
3854 | globorig = savestring (ttext); |
3855 | glen = strlen (ttext); | |
7117c2d2 | 3856 | globtext = (char *)xmalloc (glen + 2); |
eb873671 | 3857 | strcpy (globtext, ttext); |
7117c2d2 JA |
3858 | globtext[glen] = '*'; |
3859 | globtext[glen+1] = '\0'; | |
3860 | } | |
3861 | else | |
eb873671 JA |
3862 | globtext = globorig = savestring (ttext); |
3863 | ||
3864 | if (ttext != text) | |
3865 | free (ttext); | |
7117c2d2 | 3866 | |
8868edaf | 3867 | matches = shell_glob_filename (globtext, 0); |
ccc6cda3 | 3868 | if (GLOB_FAILED (matches)) |
28ef6c31 | 3869 | matches = (char **)NULL; |
ccc6cda3 JA |
3870 | ind = 0; |
3871 | } | |
3872 | ||
3873 | ret = matches ? matches[ind] : (char *)NULL; | |
3874 | ind++; | |
3875 | return ret; | |
3876 | } | |
3877 | ||
28ef6c31 | 3878 | static int |
ccc6cda3 JA |
3879 | bash_glob_completion_internal (what_to_do) |
3880 | int what_to_do; | |
3881 | { | |
28ef6c31 | 3882 | return bash_specific_completion (what_to_do, glob_complete_word); |
ccc6cda3 JA |
3883 | } |
3884 | ||
7117c2d2 JA |
3885 | /* A special quoting function so we don't end up quoting globbing characters |
3886 | in the word if there are no matches or multiple matches. */ | |
3887 | static char * | |
3888 | bash_glob_quote_filename (s, rtype, qcp) | |
3889 | char *s; | |
3890 | int rtype; | |
3891 | char *qcp; | |
3892 | { | |
3893 | if (globorig && qcp && *qcp == '\0' && STREQ (s, globorig)) | |
3894 | return (savestring (s)); | |
3895 | else | |
3896 | return (bash_quote_filename (s, rtype, qcp)); | |
3897 | } | |
3898 | ||
3899 | static int | |
3900 | bash_glob_complete_word (count, key) | |
3901 | int count, key; | |
3902 | { | |
3903 | int r; | |
3904 | rl_quote_func_t *orig_quoting_function; | |
3905 | ||
b80f6443 JA |
3906 | if (rl_editing_mode == EMACS_EDITING_MODE) |
3907 | rl_explicit_arg = 1; /* force `*' append */ | |
7117c2d2 JA |
3908 | orig_quoting_function = rl_filename_quoting_function; |
3909 | rl_filename_quoting_function = bash_glob_quote_filename; | |
3910 | ||
3911 | r = bash_glob_completion_internal (rl_completion_mode (bash_glob_complete_word)); | |
3912 | ||
3913 | rl_filename_quoting_function = orig_quoting_function; | |
3914 | return r; | |
3915 | } | |
3916 | ||
28ef6c31 | 3917 | static int |
ccc6cda3 JA |
3918 | bash_glob_expand_word (count, key) |
3919 | int count, key; | |
3920 | { | |
28ef6c31 | 3921 | return bash_glob_completion_internal ('*'); |
ccc6cda3 JA |
3922 | } |
3923 | ||
28ef6c31 | 3924 | static int |
ccc6cda3 JA |
3925 | bash_glob_list_expansions (count, key) |
3926 | int count, key; | |
3927 | { | |
28ef6c31 | 3928 | return bash_glob_completion_internal ('?'); |
ccc6cda3 JA |
3929 | } |
3930 | ||
28ef6c31 | 3931 | static int |
726f6388 JA |
3932 | bash_specific_completion (what_to_do, generator) |
3933 | int what_to_do; | |
28ef6c31 | 3934 | rl_compentry_func_t *generator; |
726f6388 | 3935 | { |
28ef6c31 JA |
3936 | rl_compentry_func_t *orig_func; |
3937 | rl_completion_func_t *orig_attempt_func; | |
495aee44 | 3938 | rl_compignore_func_t *orig_ignore_func; |
28ef6c31 | 3939 | int r; |
726f6388 JA |
3940 | |
3941 | orig_func = rl_completion_entry_function; | |
3942 | orig_attempt_func = rl_attempted_completion_function; | |
495aee44 | 3943 | orig_ignore_func = rl_ignore_some_completions_function; |
726f6388 | 3944 | rl_completion_entry_function = generator; |
28ef6c31 | 3945 | rl_attempted_completion_function = NULL; |
495aee44 | 3946 | rl_ignore_some_completions_function = orig_ignore_func; |
726f6388 | 3947 | |
28ef6c31 | 3948 | r = rl_complete_internal (what_to_do); |
726f6388 JA |
3949 | |
3950 | rl_completion_entry_function = orig_func; | |
3951 | rl_attempted_completion_function = orig_attempt_func; | |
495aee44 | 3952 | rl_ignore_some_completions_function = orig_ignore_func; |
28ef6c31 JA |
3953 | |
3954 | return r; | |
726f6388 JA |
3955 | } |
3956 | ||
3957 | #endif /* SPECIFIC_COMPLETION_FUNCTIONS */ | |
ccc6cda3 | 3958 | |
b80f6443 JA |
3959 | #if defined (VI_MODE) |
3960 | /* Completion, from vi mode's point of view. This is a modified version of | |
3961 | rl_vi_complete which uses the bash globbing code to implement what POSIX | |
3962 | specifies, which is to append a `*' and attempt filename generation (which | |
3963 | has the side effect of expanding any globbing characters in the word). */ | |
3964 | static int | |
3965 | bash_vi_complete (count, key) | |
3966 | int count, key; | |
3967 | { | |
3968 | #if defined (SPECIFIC_COMPLETION_FUNCTIONS) | |
3969 | int p, r; | |
3970 | char *t; | |
3971 | ||
3972 | if ((rl_point < rl_end) && (!whitespace (rl_line_buffer[rl_point]))) | |
3973 | { | |
3974 | if (!whitespace (rl_line_buffer[rl_point + 1])) | |
3975 | rl_vi_end_word (1, 'E'); | |
3976 | rl_point++; | |
3977 | } | |
3978 | ||
3979 | /* Find boundaries of current word, according to vi definition of a | |
3980 | `bigword'. */ | |
3981 | t = 0; | |
3982 | if (rl_point > 0) | |
3983 | { | |
3984 | p = rl_point; | |
3985 | rl_vi_bWord (1, 'B'); | |
3986 | r = rl_point; | |
3987 | rl_point = p; | |
3988 | p = r; | |
3989 | ||
3990 | t = substring (rl_line_buffer, p, rl_point); | |
3991 | } | |
3992 | ||
4d2e3154 | 3993 | if (t && completion_glob_pattern (t) == 0) |
b80f6443 JA |
3994 | rl_explicit_arg = 1; /* XXX - force glob_complete_word to append `*' */ |
3995 | FREE (t); | |
3996 | ||
3997 | if (key == '*') /* Expansion and replacement. */ | |
3998 | r = bash_glob_expand_word (count, key); | |
3999 | else if (key == '=') /* List possible completions. */ | |
4000 | r = bash_glob_list_expansions (count, key); | |
4001 | else if (key == '\\') /* Standard completion */ | |
4002 | r = bash_glob_complete_word (count, key); | |
4003 | else | |
4004 | r = rl_complete (0, key); | |
4005 | ||
4006 | if (key == '*' || key == '\\') | |
4007 | rl_vi_start_inserting (key, 1, 1); | |
4008 | ||
4009 | return (r); | |
4010 | #else | |
4011 | return rl_vi_complete (count, key); | |
4012 | #endif /* !SPECIFIC_COMPLETION_FUNCTIONS */ | |
4013 | } | |
4014 | #endif /* VI_MODE */ | |
4015 | ||
ccc6cda3 | 4016 | /* Filename quoting for completion. */ |
bb70624e JA |
4017 | /* A function to strip unquoted quote characters (single quotes, double |
4018 | quotes, and backslashes). It allows single quotes to appear | |
4019 | within double quotes, and vice versa. It should be smarter. */ | |
ccc6cda3 JA |
4020 | static char * |
4021 | bash_dequote_filename (text, quote_char) | |
4022 | char *text; | |
28ef6c31 | 4023 | int quote_char; |
ccc6cda3 JA |
4024 | { |
4025 | char *ret, *p, *r; | |
4026 | int l, quoted; | |
4027 | ||
4028 | l = strlen (text); | |
f73dda09 | 4029 | ret = (char *)xmalloc (l + 1); |
ccc6cda3 JA |
4030 | for (quoted = quote_char, p = text, r = ret; p && *p; p++) |
4031 | { | |
3185942a | 4032 | /* Allow backslash-escaped characters to pass through unscathed. */ |
ccc6cda3 JA |
4033 | if (*p == '\\') |
4034 | { | |
3185942a JA |
4035 | /* Backslashes are preserved within single quotes. */ |
4036 | if (quoted == '\'') | |
4037 | *r++ = *p; | |
4038 | /* Backslashes are preserved within double quotes unless the | |
4039 | character is one that is defined to be escaped */ | |
d233b485 | 4040 | else if (quoted == '"' && ((sh_syntaxtab[(unsigned char)p[1]] & CBSDQUOTE) == 0)) |
3185942a JA |
4041 | *r++ = *p; |
4042 | ||
ccc6cda3 JA |
4043 | *r++ = *++p; |
4044 | if (*p == '\0') | |
0001803f | 4045 | return ret; /* XXX - was break; */ |
ccc6cda3 JA |
4046 | continue; |
4047 | } | |
4048 | /* Close quote. */ | |
4049 | if (quoted && *p == quoted) | |
28ef6c31 JA |
4050 | { |
4051 | quoted = 0; | |
4052 | continue; | |
4053 | } | |
ccc6cda3 JA |
4054 | /* Open quote. */ |
4055 | if (quoted == 0 && (*p == '\'' || *p == '"')) | |
28ef6c31 JA |
4056 | { |
4057 | quoted = *p; | |
4058 | continue; | |
4059 | } | |
ccc6cda3 JA |
4060 | *r++ = *p; |
4061 | } | |
4062 | *r = '\0'; | |
4063 | return ret; | |
4064 | } | |
4065 | ||
d166f048 JA |
4066 | /* Quote characters that the readline completion code would treat as |
4067 | word break characters with backslashes. Pass backslash-quoted | |
4068 | characters through without examination. */ | |
4069 | static char * | |
4070 | quote_word_break_chars (text) | |
4071 | char *text; | |
4072 | { | |
4073 | char *ret, *r, *s; | |
4074 | int l; | |
4075 | ||
4076 | l = strlen (text); | |
f73dda09 | 4077 | ret = (char *)xmalloc ((2 * l) + 1); |
d166f048 JA |
4078 | for (s = text, r = ret; *s; s++) |
4079 | { | |
4080 | /* Pass backslash-quoted characters through, including the backslash. */ | |
4081 | if (*s == '\\') | |
4082 | { | |
4083 | *r++ = '\\'; | |
4084 | *r++ = *++s; | |
4085 | if (*s == '\0') | |
4086 | break; | |
4087 | continue; | |
4088 | } | |
4089 | /* OK, we have an unquoted character. Check its presence in | |
4090 | rl_completer_word_break_characters. */ | |
0001803f | 4091 | if (mbschr (rl_completer_word_break_characters, *s)) |
28ef6c31 | 4092 | *r++ = '\\'; |
3185942a JA |
4093 | /* XXX -- check for standalone tildes here and backslash-quote them */ |
4094 | if (s == text && *s == '~' && file_exists (text)) | |
4095 | *r++ = '\\'; | |
d166f048 JA |
4096 | *r++ = *s; |
4097 | } | |
4098 | *r = '\0'; | |
4099 | return ret; | |
4100 | } | |
4101 | ||
ac50fbac CR |
4102 | /* Use characters in STRING to populate the table of characters that should |
4103 | be backslash-quoted. The table will be used for sh_backslash_quote from | |
4104 | this file. */ | |
4105 | static void | |
4106 | set_filename_bstab (string) | |
4107 | const char *string; | |
4108 | { | |
4109 | const char *s; | |
4110 | ||
4111 | memset (filename_bstab, 0, sizeof (filename_bstab)); | |
4112 | for (s = string; s && *s; s++) | |
8868edaf | 4113 | filename_bstab[(unsigned char)*s] = 1; |
ac50fbac CR |
4114 | } |
4115 | ||
d166f048 JA |
4116 | /* Quote a filename using double quotes, single quotes, or backslashes |
4117 | depending on the value of completion_quoting_style. If we're | |
4118 | completing using backslashes, we need to quote some additional | |
4119 | characters (those that readline treats as word breaks), so we call | |
7117c2d2 JA |
4120 | quote_word_break_chars on the result. This returns newly-allocated |
4121 | memory. */ | |
ccc6cda3 JA |
4122 | static char * |
4123 | bash_quote_filename (s, rtype, qcp) | |
4124 | char *s; | |
4125 | int rtype; | |
4126 | char *qcp; | |
4127 | { | |
4128 | char *rtext, *mtext, *ret; | |
4129 | int rlen, cs; | |
4130 | ||
4131 | rtext = (char *)NULL; | |
4132 | ||
4133 | /* If RTYPE == MULT_MATCH, it means that there is | |
4134 | more than one match. In this case, we do not add | |
4135 | the closing quote or attempt to perform tilde | |
4136 | expansion. If RTYPE == SINGLE_MATCH, we try | |
4137 | to perform tilde expansion, because single and double | |
4138 | quotes inhibit tilde expansion by the shell. */ | |
4139 | ||
ccc6cda3 JA |
4140 | cs = completion_quoting_style; |
4141 | /* Might need to modify the default completion style based on *qcp, | |
bb70624e JA |
4142 | since it's set to any user-provided opening quote. We also change |
4143 | to single-quoting if there is no user-provided opening quote and | |
4144 | the word being completed contains newlines, since those are not | |
4145 | quoted correctly using backslashes (a backslash-newline pair is | |
4146 | special to the shell parser). */ | |
0001803f | 4147 | if (*qcp == '\0' && cs == COMPLETE_BSQUOTE && mbschr (s, '\n')) |
bb70624e JA |
4148 | cs = COMPLETE_SQUOTE; |
4149 | else if (*qcp == '"') | |
ccc6cda3 JA |
4150 | cs = COMPLETE_DQUOTE; |
4151 | else if (*qcp == '\'') | |
4152 | cs = COMPLETE_SQUOTE; | |
4153 | #if defined (BANG_HISTORY) | |
4154 | else if (*qcp == '\0' && history_expansion && cs == COMPLETE_DQUOTE && | |
0001803f | 4155 | history_expansion_inhibited == 0 && mbschr (s, '!')) |
ccc6cda3 | 4156 | cs = COMPLETE_BSQUOTE; |
d166f048 JA |
4157 | |
4158 | if (*qcp == '"' && history_expansion && cs == COMPLETE_DQUOTE && | |
0001803f | 4159 | history_expansion_inhibited == 0 && mbschr (s, '!')) |
d166f048 JA |
4160 | { |
4161 | cs = COMPLETE_BSQUOTE; | |
4162 | *qcp = '\0'; | |
4163 | } | |
ccc6cda3 JA |
4164 | #endif |
4165 | ||
95732b49 JA |
4166 | /* Don't tilde-expand backslash-quoted filenames, since only single and |
4167 | double quotes inhibit tilde expansion. */ | |
4168 | mtext = s; | |
4169 | if (mtext[0] == '~' && rtype == SINGLE_MATCH && cs != COMPLETE_BSQUOTE) | |
4170 | mtext = bash_tilde_expand (s, 0); | |
4171 | ||
ccc6cda3 JA |
4172 | switch (cs) |
4173 | { | |
4174 | case COMPLETE_DQUOTE: | |
28ef6c31 | 4175 | rtext = sh_double_quote (mtext); |
ccc6cda3 JA |
4176 | break; |
4177 | case COMPLETE_SQUOTE: | |
28ef6c31 | 4178 | rtext = sh_single_quote (mtext); |
ccc6cda3 JA |
4179 | break; |
4180 | case COMPLETE_BSQUOTE: | |
ac50fbac | 4181 | rtext = sh_backslash_quote (mtext, complete_fullquote ? 0 : filename_bstab, 0); |
ccc6cda3 JA |
4182 | break; |
4183 | } | |
4184 | ||
4185 | if (mtext != s) | |
4186 | free (mtext); | |
4187 | ||
d166f048 JA |
4188 | /* We may need to quote additional characters: those that readline treats |
4189 | as word breaks that are not quoted by backslash_quote. */ | |
4190 | if (rtext && cs == COMPLETE_BSQUOTE) | |
4191 | { | |
4192 | mtext = quote_word_break_chars (rtext); | |
4193 | free (rtext); | |
4194 | rtext = mtext; | |
4195 | } | |
4196 | ||
ccc6cda3 JA |
4197 | /* Leave the opening quote intact. The readline completion code takes |
4198 | care of avoiding doubled opening quotes. */ | |
ac50fbac CR |
4199 | if (rtext) |
4200 | { | |
4201 | rlen = strlen (rtext); | |
4202 | ret = (char *)xmalloc (rlen + 1); | |
4203 | strcpy (ret, rtext); | |
4204 | } | |
4205 | else | |
4206 | { | |
4207 | ret = (char *)xmalloc (rlen = 1); | |
4208 | ret[0] = '\0'; | |
4209 | } | |
ccc6cda3 JA |
4210 | |
4211 | /* If there are multiple matches, cut off the closing quote. */ | |
4212 | if (rtype == MULT_MATCH && cs != COMPLETE_BSQUOTE) | |
4213 | ret[rlen - 1] = '\0'; | |
4214 | free (rtext); | |
4215 | return ret; | |
4216 | } | |
4217 | ||
8868edaf CR |
4218 | /* Support for binding readline key sequences to Unix commands. Each editing |
4219 | mode has a separate Unix command keymap. */ | |
4220 | ||
4221 | static Keymap emacs_std_cmd_xmap; | |
4222 | #if defined (VI_MODE) | |
4223 | static Keymap vi_insert_cmd_xmap; | |
4224 | static Keymap vi_movement_cmd_xmap; | |
4225 | #endif | |
bb70624e | 4226 | |
ac50fbac CR |
4227 | #ifdef _MINIX |
4228 | static void | |
4229 | #else | |
0001803f | 4230 | static int |
ac50fbac | 4231 | #endif |
0001803f CR |
4232 | putx(c) |
4233 | int c; | |
4234 | { | |
495aee44 | 4235 | int x; |
495aee44 | 4236 | x = putc (c, rl_outstream); |
ac50fbac CR |
4237 | #ifndef _MINIX |
4238 | return x; | |
4239 | #endif | |
0001803f | 4240 | } |
8868edaf | 4241 | |
bb70624e | 4242 | static int |
8868edaf CR |
4243 | readline_get_char_offset (ind) |
4244 | int ind; | |
4245 | { | |
4246 | int r, old_ch; | |
4247 | ||
4248 | r = ind; | |
4249 | #if defined (HANDLE_MULTIBYTE) | |
4250 | if (locale_mb_cur_max > 1) | |
4251 | { | |
4252 | old_ch = rl_line_buffer[ind]; | |
4253 | rl_line_buffer[ind] = '\0'; | |
4254 | r = MB_STRLEN (rl_line_buffer); | |
4255 | rl_line_buffer[ind] = old_ch; | |
4256 | } | |
4257 | #endif | |
4258 | return r; | |
4259 | } | |
4260 | ||
4261 | static void | |
4262 | readline_set_char_offset (ind, varp) | |
4263 | int ind; | |
4264 | int *varp; | |
4265 | { | |
4266 | int i; | |
4267 | ||
4268 | i = ind; | |
4269 | ||
4270 | #if defined (HANDLE_MULTIBYTE) | |
4271 | if (i > 0 && locale_mb_cur_max > 1) | |
4272 | i = _rl_find_next_mbchar (rl_line_buffer, 0, i, 0); /* XXX */ | |
4273 | #endif | |
4274 | if (i != *varp) | |
4275 | { | |
4276 | if (i > rl_end) | |
4277 | i = rl_end; | |
4278 | else if (i < 0) | |
4279 | i = 0; | |
4280 | *varp = i; | |
4281 | } | |
4282 | } | |
4283 | ||
4284 | int | |
bb70624e JA |
4285 | bash_execute_unix_command (count, key) |
4286 | int count; /* ignored */ | |
4287 | int key; | |
4288 | { | |
ac50fbac | 4289 | int type; |
0001803f | 4290 | register int i, r; |
3185942a | 4291 | intmax_t mi; |
b80f6443 | 4292 | sh_parser_state_t ps; |
d233b485 | 4293 | char *cmd, *value, *ce, old_ch; |
3185942a JA |
4294 | SHELL_VAR *v; |
4295 | char ibuf[INT_STRLEN_BOUND(int) + 1]; | |
8868edaf | 4296 | Keymap cmd_xmap; |
bb70624e JA |
4297 | |
4298 | /* First, we need to find the right command to execute. This is tricky, | |
ac50fbac CR |
4299 | because we might have already indirected into another keymap, so we |
4300 | have to walk cmd_xmap using the entire key sequence. */ | |
8868edaf | 4301 | cmd_xmap = get_cmd_xmap_from_keymap (rl_get_keymap ()); |
d233b485 | 4302 | cmd = (char *)rl_function_of_keyseq_len (rl_executing_keyseq, rl_key_sequence_length, cmd_xmap, &type); |
8868edaf CR |
4303 | |
4304 | if (type == ISKMAP && (type = ((Keymap) cmd)[ANYOTHERKEY].type) == ISMACR) | |
4305 | cmd = (char*)((Keymap) cmd)[ANYOTHERKEY].function; | |
4306 | ||
ac50fbac | 4307 | if (cmd == 0 || type != ISMACR) |
bb70624e | 4308 | { |
ac50fbac CR |
4309 | rl_crlf (); |
4310 | internal_error (_("bash_execute_unix_command: cannot find keymap for command")); | |
4311 | rl_forced_update_display (); | |
bb70624e JA |
4312 | return 1; |
4313 | } | |
4314 | ||
0001803f CR |
4315 | ce = rl_get_termcap ("ce"); |
4316 | if (ce) /* clear current line */ | |
4317 | { | |
a0c0a00f | 4318 | rl_clear_visible_line (); |
0001803f CR |
4319 | fflush (rl_outstream); |
4320 | } | |
4321 | else | |
4322 | rl_crlf (); /* move to a new line */ | |
bb70624e | 4323 | |
3185942a JA |
4324 | v = bind_variable ("READLINE_LINE", rl_line_buffer, 0); |
4325 | if (v) | |
4326 | VSETATTR (v, att_exported); | |
8868edaf CR |
4327 | |
4328 | i = readline_get_char_offset (rl_point); | |
d233b485 CR |
4329 | value = inttostr (i, ibuf, sizeof (ibuf)); |
4330 | v = bind_int_variable ("READLINE_POINT", value, 0); | |
8868edaf CR |
4331 | if (v) |
4332 | VSETATTR (v, att_exported); | |
4333 | ||
4334 | i = readline_get_char_offset (rl_mark); | |
4335 | value = inttostr (i, ibuf, sizeof (ibuf)); | |
4336 | v = bind_int_variable ("READLINE_MARK", value, 0); | |
3185942a JA |
4337 | if (v) |
4338 | VSETATTR (v, att_exported); | |
4339 | array_needs_making = 1; | |
4340 | ||
b80f6443 | 4341 | save_parser_state (&ps); |
8868edaf CR |
4342 | rl_clear_signals (); |
4343 | r = parse_and_execute (savestring (cmd), "bash_execute_unix_command", SEVAL_NOHIST); | |
4344 | rl_set_signals (); | |
3185942a | 4345 | restore_parser_state (&ps); |
7117c2d2 | 4346 | |
3185942a | 4347 | v = find_variable ("READLINE_LINE"); |
d233b485 CR |
4348 | maybe_make_readline_line (v ? value_cell (v) : 0); |
4349 | ||
3185942a JA |
4350 | v = find_variable ("READLINE_POINT"); |
4351 | if (v && legal_number (value_cell (v), &mi)) | |
8868edaf CR |
4352 | readline_set_char_offset (mi, &rl_point); |
4353 | ||
4354 | v = find_variable ("READLINE_MARK"); | |
4355 | if (v && legal_number (value_cell (v), &mi)) | |
4356 | readline_set_char_offset (mi, &rl_mark); | |
7117c2d2 | 4357 | |
a0c0a00f CR |
4358 | check_unbind_variable ("READLINE_LINE"); |
4359 | check_unbind_variable ("READLINE_POINT"); | |
8868edaf | 4360 | check_unbind_variable ("READLINE_MARK"); |
3185942a | 4361 | array_needs_making = 1; |
bb70624e JA |
4362 | |
4363 | /* and restore the readline buffer and display after command execution. */ | |
a0c0a00f CR |
4364 | /* If we clear the last line of the prompt above, redraw only that last |
4365 | line. If the command returns 124, we redraw unconditionally as in | |
4366 | previous versions. */ | |
4367 | if (ce && r != 124) | |
4368 | rl_redraw_prompt_last_line (); | |
4369 | else | |
4370 | rl_forced_update_display (); | |
4371 | ||
bb70624e JA |
4372 | return 0; |
4373 | } | |
4374 | ||
ac50fbac CR |
4375 | int |
4376 | print_unix_command_map () | |
4377 | { | |
8868edaf | 4378 | Keymap save, cmd_xmap; |
ac50fbac CR |
4379 | |
4380 | save = rl_get_keymap (); | |
8868edaf | 4381 | cmd_xmap = get_cmd_xmap_from_keymap (save); |
ac50fbac CR |
4382 | rl_set_keymap (cmd_xmap); |
4383 | rl_macro_dumper (1); | |
4384 | rl_set_keymap (save); | |
4385 | return 0; | |
4386 | } | |
4387 | ||
bb70624e JA |
4388 | static void |
4389 | init_unix_command_map () | |
4390 | { | |
8868edaf CR |
4391 | emacs_std_cmd_xmap = rl_make_bare_keymap (); |
4392 | ||
4393 | emacs_std_cmd_xmap[CTRL('X')].type = ISKMAP; | |
4394 | emacs_std_cmd_xmap[CTRL('X')].function = KEYMAP_TO_FUNCTION (rl_make_bare_keymap ()); | |
4395 | emacs_std_cmd_xmap[ESC].type = ISKMAP; | |
4396 | emacs_std_cmd_xmap[ESC].function = KEYMAP_TO_FUNCTION (rl_make_bare_keymap ()); | |
4397 | ||
4398 | #if defined (VI_MODE) | |
4399 | vi_insert_cmd_xmap = rl_make_bare_keymap (); | |
4400 | vi_movement_cmd_xmap = rl_make_bare_keymap (); | |
4401 | #endif | |
4402 | } | |
4403 | ||
4404 | static Keymap | |
4405 | get_cmd_xmap_from_edit_mode () | |
4406 | { | |
4407 | if (emacs_std_cmd_xmap == 0) | |
4408 | init_unix_command_map (); | |
4409 | ||
4410 | switch (rl_editing_mode) | |
4411 | { | |
4412 | case EMACS_EDITING_MODE: | |
4413 | return emacs_std_cmd_xmap; | |
4414 | #if defined (VI_MODE) | |
4415 | case VI_EDITING_MODE: | |
4416 | return (get_cmd_xmap_from_keymap (rl_get_keymap ())); | |
4417 | #endif | |
4418 | default: | |
4419 | return (Keymap)NULL; | |
4420 | } | |
4421 | } | |
4422 | ||
4423 | static Keymap | |
4424 | get_cmd_xmap_from_keymap (kmap) | |
4425 | Keymap kmap; | |
4426 | { | |
4427 | if (emacs_std_cmd_xmap == 0) | |
4428 | init_unix_command_map (); | |
4429 | ||
4430 | if (kmap == emacs_standard_keymap) | |
4431 | return emacs_std_cmd_xmap; | |
4432 | else if (kmap == emacs_meta_keymap) | |
4433 | return (FUNCTION_TO_KEYMAP (emacs_std_cmd_xmap, ESC)); | |
4434 | else if (kmap == emacs_ctlx_keymap) | |
4435 | return (FUNCTION_TO_KEYMAP (emacs_std_cmd_xmap, CTRL('X'))); | |
4436 | #if defined (VI_MODE) | |
4437 | else if (kmap == vi_insertion_keymap) | |
4438 | return vi_insert_cmd_xmap; | |
4439 | else if (kmap == vi_movement_keymap) | |
4440 | return vi_movement_cmd_xmap; | |
4441 | #endif | |
4442 | else | |
4443 | return (Keymap)NULL; | |
bb70624e JA |
4444 | } |
4445 | ||
4446 | static int | |
4447 | isolate_sequence (string, ind, need_dquote, startp) | |
4448 | char *string; | |
4449 | int ind, need_dquote, *startp; | |
4450 | { | |
4451 | register int i; | |
4452 | int c, passc, delim; | |
4453 | ||
4454 | for (i = ind; string[i] && whitespace (string[i]); i++) | |
4455 | ; | |
4456 | /* NEED_DQUOTE means that the first non-white character *must* be `"'. */ | |
4457 | if (need_dquote && string[i] != '"') | |
4458 | { | |
b80f6443 | 4459 | builtin_error (_("%s: first non-whitespace character is not `\"'"), string); |
bb70624e JA |
4460 | return -1; |
4461 | } | |
4462 | ||
4463 | /* We can have delimited strings even if NEED_DQUOTE == 0, like the command | |
4464 | string to bind the key sequence to. */ | |
4465 | delim = (string[i] == '"' || string[i] == '\'') ? string[i] : 0; | |
4466 | ||
4467 | if (startp) | |
4468 | *startp = delim ? ++i : i; | |
4469 | ||
4470 | for (passc = 0; c = string[i]; i++) | |
4471 | { | |
4472 | if (passc) | |
4473 | { | |
4474 | passc = 0; | |
4475 | continue; | |
4476 | } | |
4477 | if (c == '\\') | |
4478 | { | |
4479 | passc++; | |
4480 | continue; | |
4481 | } | |
4482 | if (c == delim) | |
28ef6c31 | 4483 | break; |
bb70624e JA |
4484 | } |
4485 | ||
4486 | if (delim && string[i] != delim) | |
4487 | { | |
b80f6443 | 4488 | builtin_error (_("no closing `%c' in %s"), delim, string); |
bb70624e JA |
4489 | return -1; |
4490 | } | |
4491 | ||
4492 | return i; | |
4493 | } | |
4494 | ||
4495 | int | |
4496 | bind_keyseq_to_unix_command (line) | |
4497 | char *line; | |
4498 | { | |
8868edaf | 4499 | Keymap kmap, cmd_xmap; |
bb70624e | 4500 | char *kseq, *value; |
f73dda09 | 4501 | int i, kstart; |
bb70624e | 4502 | |
bb70624e JA |
4503 | kmap = rl_get_keymap (); |
4504 | ||
4505 | /* We duplicate some of the work done by rl_parse_and_bind here, but | |
4506 | this code only has to handle `"keyseq": ["]command["]' and can | |
4507 | generate an error for anything else. */ | |
4508 | i = isolate_sequence (line, 0, 1, &kstart); | |
4509 | if (i < 0) | |
4510 | return -1; | |
4511 | ||
4512 | /* Create the key sequence string to pass to rl_generic_bind */ | |
4513 | kseq = substring (line, kstart, i); | |
4514 | ||
4515 | for ( ; line[i] && line[i] != ':'; i++) | |
4516 | ; | |
4517 | if (line[i] != ':') | |
4518 | { | |
b80f6443 | 4519 | builtin_error (_("%s: missing colon separator"), line); |
ac50fbac | 4520 | FREE (kseq); |
bb70624e JA |
4521 | return -1; |
4522 | } | |
4523 | ||
4524 | i = isolate_sequence (line, i + 1, 0, &kstart); | |
4525 | if (i < 0) | |
ac50fbac CR |
4526 | { |
4527 | FREE (kseq); | |
4528 | return -1; | |
4529 | } | |
bb70624e JA |
4530 | |
4531 | /* Create the value string containing the command to execute. */ | |
4532 | value = substring (line, kstart, i); | |
4533 | ||
4534 | /* Save the command to execute and the key sequence in the CMD_XMAP */ | |
8868edaf | 4535 | cmd_xmap = get_cmd_xmap_from_keymap (kmap); |
bb70624e JA |
4536 | rl_generic_bind (ISMACR, kseq, value, cmd_xmap); |
4537 | ||
4538 | /* and bind the key sequence in the current keymap to a function that | |
4539 | understands how to execute from CMD_XMAP */ | |
b80f6443 | 4540 | rl_bind_keyseq_in_map (kseq, bash_execute_unix_command, kmap); |
ac50fbac CR |
4541 | |
4542 | free (kseq); | |
bb70624e JA |
4543 | return 0; |
4544 | } | |
4545 | ||
8868edaf CR |
4546 | int |
4547 | unbind_unix_command (kseq) | |
4548 | char *kseq; | |
4549 | { | |
4550 | Keymap cmd_xmap; | |
4551 | ||
4552 | cmd_xmap = get_cmd_xmap_from_keymap (rl_get_keymap ()); | |
4553 | if (rl_bind_keyseq_in_map (kseq, (rl_command_func_t *)NULL, cmd_xmap) != 0) | |
4554 | { | |
4555 | builtin_error (_("`%s': cannot unbind in command keymap"), kseq); | |
4556 | return 0; | |
4557 | } | |
4558 | return 1; | |
4559 | } | |
4560 | ||
bb70624e JA |
4561 | /* Used by the programmable completion code. Complete TEXT as a filename, |
4562 | but return only directories as matches. Dequotes the filename before | |
4563 | attempting to find matches. */ | |
4564 | char ** | |
4565 | bash_directory_completion_matches (text) | |
28ef6c31 | 4566 | const char *text; |
bb70624e JA |
4567 | { |
4568 | char **m1; | |
4569 | char *dfn; | |
4570 | int qc; | |
4571 | ||
b80f6443 | 4572 | qc = rl_dispatching ? rl_completion_quote_character : 0; |
c6dcdf4d CR |
4573 | /* If rl_completion_found_quote != 0, rl_completion_matches will call the |
4574 | filename dequoting function, causing the directory name to be dequoted | |
4575 | twice. */ | |
4576 | if (rl_dispatching && rl_completion_found_quote == 0) | |
4577 | dfn = bash_dequote_filename ((char *)text, qc); | |
4578 | else | |
4579 | dfn = (char *)text; | |
28ef6c31 | 4580 | m1 = rl_completion_matches (dfn, rl_filename_completion_function); |
c6dcdf4d CR |
4581 | if (dfn != text) |
4582 | free (dfn); | |
bb70624e JA |
4583 | |
4584 | if (m1 == 0 || m1[0] == 0) | |
4585 | return m1; | |
4586 | /* We don't bother recomputing the lcd of the matches, because it will just | |
4587 | get thrown away by the programmable completion code and recomputed | |
4588 | later. */ | |
8868edaf | 4589 | (void)bash_progcomp_ignore_filenames (m1); |
bb70624e JA |
4590 | return m1; |
4591 | } | |
b80f6443 JA |
4592 | |
4593 | char * | |
4594 | bash_dequote_text (text) | |
4595 | const char *text; | |
4596 | { | |
4597 | char *dtxt; | |
4598 | int qc; | |
4599 | ||
4600 | qc = (text[0] == '"' || text[0] == '\'') ? text[0] : 0; | |
4601 | dtxt = bash_dequote_filename ((char *)text, qc); | |
4602 | return (dtxt); | |
4603 | } | |
ac50fbac CR |
4604 | |
4605 | /* This event hook is designed to be called after readline receives a signal | |
4606 | that interrupts read(2). It gives reasonable responsiveness to interrupts | |
4607 | and fatal signals without executing too much code in a signal handler | |
4608 | context. */ | |
4609 | static int | |
4610 | bash_event_hook () | |
4611 | { | |
8868edaf CR |
4612 | int sig; |
4613 | ||
4614 | /* XXX - see if we need to do anything here if sigterm_received == 1, | |
4615 | we probably don't want to reset the event hook since we will not be | |
4616 | jumping to the top level */ | |
4617 | if (sigterm_received) | |
4618 | { | |
4619 | /* RESET_SIGTERM; */ | |
4620 | return 0; | |
4621 | } | |
4622 | ||
4623 | sig = 0; | |
4624 | if (terminating_signal) | |
4625 | sig = terminating_signal; | |
4626 | else if (interrupt_state) | |
4627 | sig = SIGINT; | |
4628 | else if (sigalrm_seen) | |
4629 | sig = SIGALRM; | |
4630 | else | |
4631 | sig = first_pending_trap (); | |
4632 | ||
ac50fbac CR |
4633 | /* If we're going to longjmp to top_level, make sure we clean up readline. |
4634 | check_signals will call QUIT, which will eventually longjmp to top_level, | |
84c617ec CR |
4635 | calling run_interrupt_trap along the way. The check for sigalrm_seen is |
4636 | to clean up the read builtin's state. */ | |
4637 | if (terminating_signal || interrupt_state || sigalrm_seen) | |
ac50fbac CR |
4638 | rl_cleanup_after_signal (); |
4639 | bashline_reset_event_hook (); | |
8868edaf CR |
4640 | |
4641 | /* posix mode SIGINT during read -e. We only get here if SIGINT is trapped. */ | |
4642 | if (posixly_correct && this_shell_builtin == read_builtin && sig == 2) | |
4643 | { | |
4644 | last_command_exit_value = 128|SIGINT; | |
4645 | throw_to_top_level (); | |
4646 | } | |
4647 | ||
ac50fbac CR |
4648 | check_signals_and_traps (); /* XXX */ |
4649 | return 0; | |
4650 | } | |
4651 | ||
ccc6cda3 | 4652 | #endif /* READLINE */ |