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Commit | Line | Data |
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3185942a | 1 | /* pcomplete.c - functions to generate lists of matches for programmable completion. */ |
bb70624e | 2 | |
3185942a | 3 | /* Copyright (C) 1999-2009 Free Software Foundation, Inc. |
bb70624e 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. | |
bb70624e | 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. | |
bb70624e | 16 | |
3185942a JA |
17 | You should have received a copy of the GNU General Public License |
18 | along with Bash. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
bb70624e JA |
20 | |
21 | #include <config.h> | |
22 | ||
23 | #if defined (PROGRAMMABLE_COMPLETION) | |
24 | ||
25 | #include "bashtypes.h" | |
26 | #include "posixstat.h" | |
27 | ||
28 | #if defined (HAVE_UNISTD_H) | |
29 | # include <unistd.h> | |
30 | #endif | |
31 | ||
32 | #include <signal.h> | |
33 | ||
34 | #if defined (PREFER_STDARG) | |
35 | # include <stdarg.h> | |
36 | #else | |
7117c2d2 | 37 | # include <varargs.h> |
bb70624e JA |
38 | #endif |
39 | ||
40 | #include <stdio.h> | |
41 | #include "bashansi.h" | |
b80f6443 | 42 | #include "bashintl.h" |
bb70624e JA |
43 | |
44 | #include "shell.h" | |
45 | #include "pcomplete.h" | |
46 | #include "alias.h" | |
47 | #include "bashline.h" | |
f73dda09 | 48 | #include "execute_cmd.h" |
bb70624e JA |
49 | #include "pathexp.h" |
50 | ||
51 | #if defined (JOB_CONTROL) | |
52 | # include "jobs.h" | |
53 | #endif | |
54 | ||
55 | #if !defined (NSIG) | |
56 | # include "trap.h" | |
57 | #endif | |
58 | ||
59 | #include "builtins.h" | |
60 | #include "builtins/common.h" | |
61 | ||
62 | #include <glob/glob.h> | |
f73dda09 | 63 | #include <glob/strmatch.h> |
bb70624e JA |
64 | |
65 | #include <readline/rlconf.h> | |
66 | #include <readline/readline.h> | |
67 | #include <readline/history.h> | |
68 | ||
0001803f CR |
69 | #define PCOMP_RETRYFAIL 256 |
70 | ||
bb70624e JA |
71 | #ifdef STRDUP |
72 | # undef STRDUP | |
73 | #endif | |
74 | #define STRDUP(x) ((x) ? savestring (x) : (char *)NULL) | |
75 | ||
76 | typedef SHELL_VAR **SVFUNC (); | |
77 | ||
78 | #ifndef HAVE_STRPBRK | |
79 | extern char *strpbrk __P((char *, char *)); | |
80 | #endif | |
81 | ||
bb70624e JA |
82 | extern int array_needs_making; |
83 | extern STRING_INT_ALIST word_token_alist[]; | |
84 | extern char *signal_names[]; | |
85 | ||
7117c2d2 JA |
86 | #if defined (DEBUG) |
87 | #if defined (PREFER_STDARG) | |
f73dda09 JA |
88 | static void debug_printf (const char *, ...) __attribute__((__format__ (printf, 1, 2))); |
89 | #endif | |
7117c2d2 | 90 | #endif /* DEBUG */ |
f73dda09 JA |
91 | |
92 | static int it_init_joblist __P((ITEMLIST *, int)); | |
93 | ||
94 | static int it_init_aliases __P((ITEMLIST *)); | |
95 | static int it_init_arrayvars __P((ITEMLIST *)); | |
96 | static int it_init_bindings __P((ITEMLIST *)); | |
97 | static int it_init_builtins __P((ITEMLIST *)); | |
98 | static int it_init_disabled __P((ITEMLIST *)); | |
99 | static int it_init_enabled __P((ITEMLIST *)); | |
100 | static int it_init_exported __P((ITEMLIST *)); | |
101 | static int it_init_functions __P((ITEMLIST *)); | |
102 | static int it_init_hostnames __P((ITEMLIST *)); | |
103 | static int it_init_jobs __P((ITEMLIST *)); | |
104 | static int it_init_running __P((ITEMLIST *)); | |
105 | static int it_init_stopped __P((ITEMLIST *)); | |
106 | static int it_init_keywords __P((ITEMLIST *)); | |
107 | static int it_init_signals __P((ITEMLIST *)); | |
108 | static int it_init_variables __P((ITEMLIST *)); | |
109 | static int it_init_setopts __P((ITEMLIST *)); | |
110 | static int it_init_shopts __P((ITEMLIST *)); | |
111 | ||
112 | static int shouldexp_filterpat __P((char *)); | |
113 | static char *preproc_filterpat __P((char *, char *)); | |
114 | ||
115 | static void init_itemlist_from_varlist __P((ITEMLIST *, SVFUNC *)); | |
116 | ||
117 | static STRINGLIST *gen_matches_from_itemlist __P((ITEMLIST *, const char *)); | |
118 | static STRINGLIST *gen_action_completions __P((COMPSPEC *, const char *)); | |
119 | static STRINGLIST *gen_globpat_matches __P((COMPSPEC *, const char *)); | |
120 | static STRINGLIST *gen_wordlist_matches __P((COMPSPEC *, const char *)); | |
121 | static STRINGLIST *gen_shell_function_matches __P((COMPSPEC *, const char *, | |
122 | char *, int, WORD_LIST *, | |
0001803f | 123 | int, int, int *)); |
f73dda09 JA |
124 | static STRINGLIST *gen_command_matches __P((COMPSPEC *, const char *, char *, |
125 | int, WORD_LIST *, int, int)); | |
126 | ||
0001803f CR |
127 | static STRINGLIST *gen_progcomp_completions __P((const char *, const char *, |
128 | const char *, | |
129 | int, int, int *, int *, | |
130 | COMPSPEC **)); | |
131 | ||
f73dda09 JA |
132 | static char *pcomp_filename_completion_function __P((const char *, int)); |
133 | ||
134 | #if defined (ARRAY_VARS) | |
135 | static SHELL_VAR *bind_comp_words __P((WORD_LIST *)); | |
136 | #endif | |
137 | static void bind_compfunc_variables __P((char *, int, WORD_LIST *, int, int)); | |
138 | static void unbind_compfunc_variables __P((int)); | |
139 | static WORD_LIST *build_arg_list __P((char *, const char *, WORD_LIST *, int)); | |
140 | static WORD_LIST *command_line_to_word_list __P((char *, int, int, int *, int *)); | |
bb70624e | 141 | |
7117c2d2 | 142 | #ifdef DEBUG |
bb70624e | 143 | static int progcomp_debug = 0; |
7117c2d2 | 144 | #endif |
bb70624e JA |
145 | |
146 | int prog_completion_enabled = 1; | |
147 | ||
148 | /* These are used to manage the arrays of strings for possible completions. */ | |
149 | ITEMLIST it_aliases = { 0, it_init_aliases, (STRINGLIST *)0 }; | |
150 | ITEMLIST it_arrayvars = { LIST_DYNAMIC, it_init_arrayvars, (STRINGLIST *)0 }; | |
151 | ITEMLIST it_bindings = { 0, it_init_bindings, (STRINGLIST *)0 }; | |
152 | ITEMLIST it_builtins = { 0, it_init_builtins, (STRINGLIST *)0 }; | |
153 | ITEMLIST it_commands = { LIST_DYNAMIC }; /* unused */ | |
154 | ITEMLIST it_directories = { LIST_DYNAMIC }; /* unused */ | |
155 | ITEMLIST it_disabled = { 0, it_init_disabled, (STRINGLIST *)0 }; | |
156 | ITEMLIST it_enabled = { 0, it_init_enabled, (STRINGLIST *)0 }; | |
157 | ITEMLIST it_exports = { LIST_DYNAMIC, it_init_exported, (STRINGLIST *)0 }; | |
7117c2d2 | 158 | ITEMLIST it_files = { LIST_DYNAMIC }; /* unused */ |
bb70624e JA |
159 | ITEMLIST it_functions = { 0, it_init_functions, (STRINGLIST *)0 }; |
160 | ITEMLIST it_hostnames = { LIST_DYNAMIC, it_init_hostnames, (STRINGLIST *)0 }; | |
7117c2d2 | 161 | ITEMLIST it_groups = { LIST_DYNAMIC }; /* unused */ |
f73dda09 | 162 | ITEMLIST it_jobs = { LIST_DYNAMIC, it_init_jobs, (STRINGLIST *)0 }; |
bb70624e JA |
163 | ITEMLIST it_keywords = { 0, it_init_keywords, (STRINGLIST *)0 }; |
164 | ITEMLIST it_running = { LIST_DYNAMIC, it_init_running, (STRINGLIST *)0 }; | |
7117c2d2 | 165 | ITEMLIST it_services = { LIST_DYNAMIC }; /* unused */ |
bb70624e JA |
166 | ITEMLIST it_setopts = { 0, it_init_setopts, (STRINGLIST *)0 }; |
167 | ITEMLIST it_shopts = { 0, it_init_shopts, (STRINGLIST *)0 }; | |
168 | ITEMLIST it_signals = { 0, it_init_signals, (STRINGLIST *)0 }; | |
169 | ITEMLIST it_stopped = { LIST_DYNAMIC, it_init_stopped, (STRINGLIST *)0 }; | |
7117c2d2 | 170 | ITEMLIST it_users = { LIST_DYNAMIC }; /* unused */ |
bb70624e JA |
171 | ITEMLIST it_variables = { LIST_DYNAMIC, it_init_variables, (STRINGLIST *)0 }; |
172 | ||
3185942a JA |
173 | COMPSPEC *pcomp_curcs; |
174 | const char *pcomp_curcmd; | |
175 | ||
7117c2d2 | 176 | #ifdef DEBUG |
bb70624e | 177 | /* Debugging code */ |
bb70624e JA |
178 | static void |
179 | #if defined (PREFER_STDARG) | |
180 | debug_printf (const char *format, ...) | |
181 | #else | |
182 | debug_printf (format, va_alist) | |
183 | const char *format; | |
184 | va_dcl | |
185 | #endif | |
186 | { | |
187 | va_list args; | |
188 | ||
189 | if (progcomp_debug == 0) | |
190 | return; | |
191 | ||
7117c2d2 | 192 | SH_VA_START (args, format); |
bb70624e JA |
193 | |
194 | fprintf (stdout, "DEBUG: "); | |
195 | vfprintf (stdout, format, args); | |
196 | fprintf (stdout, "\n"); | |
197 | ||
198 | rl_on_new_line (); | |
199 | ||
200 | va_end (args); | |
201 | } | |
7117c2d2 | 202 | #endif |
bb70624e JA |
203 | |
204 | /* Functions to manage the item lists */ | |
205 | ||
206 | void | |
207 | set_itemlist_dirty (it) | |
208 | ITEMLIST *it; | |
209 | { | |
210 | it->flags |= LIST_DIRTY; | |
211 | } | |
212 | ||
213 | void | |
214 | initialize_itemlist (itp) | |
215 | ITEMLIST *itp; | |
216 | { | |
217 | (*itp->list_getter) (itp); | |
218 | itp->flags |= LIST_INITIALIZED; | |
219 | itp->flags &= ~LIST_DIRTY; | |
220 | } | |
221 | ||
222 | void | |
223 | clean_itemlist (itp) | |
224 | ITEMLIST *itp; | |
225 | { | |
226 | STRINGLIST *sl; | |
227 | ||
228 | sl = itp->slist; | |
229 | if (sl) | |
230 | { | |
231 | if ((itp->flags & (LIST_DONTFREEMEMBERS|LIST_DONTFREE)) == 0) | |
7117c2d2 | 232 | strvec_flush (sl->list); |
bb70624e JA |
233 | if ((itp->flags & LIST_DONTFREE) == 0) |
234 | free (sl->list); | |
235 | free (sl); | |
236 | } | |
237 | itp->slist = (STRINGLIST *)NULL; | |
238 | itp->flags &= ~(LIST_DONTFREE|LIST_DONTFREEMEMBERS|LIST_INITIALIZED|LIST_DIRTY); | |
239 | } | |
240 | ||
bb70624e JA |
241 | |
242 | static int | |
243 | shouldexp_filterpat (s) | |
244 | char *s; | |
245 | { | |
246 | register char *p; | |
247 | ||
248 | for (p = s; p && *p; p++) | |
249 | { | |
250 | if (*p == '\\') | |
251 | p++; | |
252 | else if (*p == '&') | |
253 | return 1; | |
254 | } | |
255 | return 0; | |
256 | } | |
257 | ||
258 | /* Replace any instance of `&' in PAT with TEXT. Backslash may be used to | |
259 | quote a `&' and inhibit substitution. Returns a new string. This just | |
260 | calls stringlib.c:strcreplace(). */ | |
261 | static char * | |
262 | preproc_filterpat (pat, text) | |
263 | char *pat; | |
264 | char *text; | |
265 | { | |
266 | char *ret; | |
267 | ||
268 | ret = strcreplace (pat, '&', text, 1); | |
269 | return ret; | |
270 | } | |
271 | ||
272 | /* Remove any match of FILTERPAT from SL. A `&' in FILTERPAT is replaced by | |
273 | TEXT. A leading `!' in FILTERPAT negates the pattern; in this case | |
274 | any member of SL->list that does *not* match will be removed. This returns | |
275 | a new STRINGLIST with the matching members of SL *copied*. Any | |
276 | non-matching members of SL->list are *freed*. */ | |
277 | STRINGLIST * | |
278 | filter_stringlist (sl, filterpat, text) | |
279 | STRINGLIST *sl; | |
280 | char *filterpat, *text; | |
281 | { | |
282 | int i, m, not; | |
283 | STRINGLIST *ret; | |
284 | char *npat, *t; | |
285 | ||
286 | if (sl == 0 || sl->list == 0 || sl->list_len == 0) | |
287 | return sl; | |
288 | ||
289 | npat = shouldexp_filterpat (filterpat) ? preproc_filterpat (filterpat, text) : filterpat; | |
290 | ||
291 | not = (npat[0] == '!'); | |
292 | t = not ? npat + 1 : npat; | |
293 | ||
7117c2d2 | 294 | ret = strlist_create (sl->list_size); |
bb70624e JA |
295 | for (i = 0; i < sl->list_len; i++) |
296 | { | |
f73dda09 | 297 | m = strmatch (t, sl->list[i], FNMATCH_EXTFLAG); |
bb70624e JA |
298 | if ((not && m == FNM_NOMATCH) || (not == 0 && m != FNM_NOMATCH)) |
299 | free (sl->list[i]); | |
300 | else | |
301 | ret->list[ret->list_len++] = sl->list[i]; | |
302 | } | |
303 | ||
304 | ret->list[ret->list_len] = (char *)NULL; | |
305 | if (npat != filterpat) | |
306 | free (npat); | |
307 | ||
308 | return ret; | |
309 | } | |
310 | ||
28ef6c31 JA |
311 | /* Turn an array of strings returned by rl_completion_matches into a STRINGLIST. |
312 | This understands how rl_completion_matches sets matches[0] (the lcd of the | |
bb70624e JA |
313 | strings in the list, unless it's the only match). */ |
314 | STRINGLIST * | |
315 | completions_to_stringlist (matches) | |
316 | char **matches; | |
317 | { | |
318 | STRINGLIST *sl; | |
319 | int mlen, i, n; | |
320 | ||
7117c2d2 JA |
321 | mlen = (matches == 0) ? 0 : strvec_len (matches); |
322 | sl = strlist_create (mlen + 1); | |
bb70624e JA |
323 | |
324 | if (matches == 0 || matches[0] == 0) | |
325 | return sl; | |
326 | ||
327 | if (matches[1] == 0) | |
328 | { | |
329 | sl->list[0] = STRDUP (matches[0]); | |
330 | sl->list[sl->list_len = 1] = (char *)NULL; | |
331 | return sl; | |
332 | } | |
333 | ||
334 | for (i = 1, n = 0; i < mlen; i++, n++) | |
335 | sl->list[n] = STRDUP (matches[i]); | |
336 | sl->list_len = n; | |
337 | sl->list[n] = (char *)NULL; | |
338 | ||
339 | return sl; | |
340 | } | |
341 | ||
342 | /* Functions to manage the various ITEMLISTs that we populate internally. | |
343 | The caller is responsible for setting ITP->flags correctly. */ | |
344 | ||
345 | static int | |
346 | it_init_aliases (itp) | |
347 | ITEMLIST *itp; | |
348 | { | |
349 | #ifdef ALIAS | |
f73dda09 | 350 | alias_t **alias_list; |
bb70624e JA |
351 | register int i, n; |
352 | STRINGLIST *sl; | |
353 | ||
f73dda09 JA |
354 | alias_list = all_aliases (); |
355 | if (alias_list == 0) | |
bb70624e JA |
356 | { |
357 | itp->slist = (STRINGLIST *)NULL; | |
358 | return 0; | |
359 | } | |
f73dda09 | 360 | for (n = 0; alias_list[n]; n++) |
bb70624e | 361 | ; |
7117c2d2 | 362 | sl = strlist_create (n+1); |
bb70624e | 363 | for (i = 0; i < n; i++) |
f73dda09 | 364 | sl->list[i] = STRDUP (alias_list[i]->name); |
bb70624e JA |
365 | sl->list[n] = (char *)NULL; |
366 | sl->list_size = sl->list_len = n; | |
367 | itp->slist = sl; | |
368 | #else | |
369 | itp->slist = (STRINGLIST *)NULL; | |
370 | #endif | |
371 | return 1; | |
372 | } | |
373 | ||
374 | static void | |
375 | init_itemlist_from_varlist (itp, svfunc) | |
376 | ITEMLIST *itp; | |
377 | SVFUNC *svfunc; | |
378 | { | |
379 | SHELL_VAR **vlist; | |
380 | STRINGLIST *sl; | |
381 | register int i, n; | |
382 | ||
383 | vlist = (*svfunc) (); | |
b80f6443 JA |
384 | if (vlist == 0) |
385 | { | |
386 | itp->slist = (STRINGLIST *)NULL; | |
387 | return; | |
388 | } | |
bb70624e JA |
389 | for (n = 0; vlist[n]; n++) |
390 | ; | |
7117c2d2 | 391 | sl = strlist_create (n+1); |
bb70624e JA |
392 | for (i = 0; i < n; i++) |
393 | sl->list[i] = savestring (vlist[i]->name); | |
394 | sl->list[sl->list_len = n] = (char *)NULL; | |
395 | itp->slist = sl; | |
396 | } | |
397 | ||
398 | static int | |
399 | it_init_arrayvars (itp) | |
400 | ITEMLIST *itp; | |
401 | { | |
402 | #if defined (ARRAY_VARS) | |
403 | init_itemlist_from_varlist (itp, all_array_variables); | |
404 | return 1; | |
405 | #else | |
406 | return 0; | |
407 | #endif | |
408 | } | |
409 | ||
410 | static int | |
411 | it_init_bindings (itp) | |
412 | ITEMLIST *itp; | |
413 | { | |
414 | char **blist; | |
415 | STRINGLIST *sl; | |
416 | ||
417 | /* rl_funmap_names allocates blist, but not its members */ | |
f73dda09 | 418 | blist = (char **)rl_funmap_names (); /* XXX fix const later */ |
7117c2d2 | 419 | sl = strlist_create (0); |
bb70624e JA |
420 | sl->list = blist; |
421 | sl->list_size = 0; | |
7117c2d2 | 422 | sl->list_len = strvec_len (sl->list); |
bb70624e JA |
423 | itp->flags |= LIST_DONTFREEMEMBERS; |
424 | itp->slist = sl; | |
425 | ||
426 | return 0; | |
427 | } | |
428 | ||
429 | static int | |
430 | it_init_builtins (itp) | |
431 | ITEMLIST *itp; | |
432 | { | |
433 | STRINGLIST *sl; | |
bb70624e JA |
434 | register int i, n; |
435 | ||
7117c2d2 | 436 | sl = strlist_create (num_shell_builtins); |
bb70624e JA |
437 | for (i = n = 0; i < num_shell_builtins; i++) |
438 | if (shell_builtins[i].function) | |
439 | sl->list[n++] = shell_builtins[i].name; | |
440 | sl->list[sl->list_len = n] = (char *)NULL; | |
441 | itp->flags |= LIST_DONTFREEMEMBERS; | |
442 | itp->slist = sl; | |
443 | return 0; | |
444 | } | |
445 | ||
446 | static int | |
447 | it_init_enabled (itp) | |
448 | ITEMLIST *itp; | |
449 | { | |
450 | STRINGLIST *sl; | |
bb70624e JA |
451 | register int i, n; |
452 | ||
7117c2d2 | 453 | sl = strlist_create (num_shell_builtins); |
bb70624e JA |
454 | for (i = n = 0; i < num_shell_builtins; i++) |
455 | { | |
456 | if (shell_builtins[i].function && (shell_builtins[i].flags & BUILTIN_ENABLED)) | |
457 | sl->list[n++] = shell_builtins[i].name; | |
458 | } | |
459 | sl->list[sl->list_len = n] = (char *)NULL; | |
460 | itp->flags |= LIST_DONTFREEMEMBERS; | |
461 | itp->slist = sl; | |
462 | return 0; | |
463 | } | |
464 | ||
465 | static int | |
466 | it_init_disabled (itp) | |
467 | ITEMLIST *itp; | |
468 | { | |
469 | STRINGLIST *sl; | |
bb70624e JA |
470 | register int i, n; |
471 | ||
7117c2d2 | 472 | sl = strlist_create (num_shell_builtins); |
bb70624e JA |
473 | for (i = n = 0; i < num_shell_builtins; i++) |
474 | { | |
475 | if (shell_builtins[i].function && ((shell_builtins[i].flags & BUILTIN_ENABLED) == 0)) | |
476 | sl->list[n++] = shell_builtins[i].name; | |
477 | } | |
478 | sl->list[sl->list_len = n] = (char *)NULL; | |
479 | itp->flags |= LIST_DONTFREEMEMBERS; | |
480 | itp->slist = sl; | |
481 | return 0; | |
482 | } | |
483 | ||
484 | static int | |
485 | it_init_exported (itp) | |
486 | ITEMLIST *itp; | |
487 | { | |
488 | init_itemlist_from_varlist (itp, all_exported_variables); | |
489 | return 0; | |
490 | } | |
491 | ||
492 | static int | |
493 | it_init_functions (itp) | |
494 | ITEMLIST *itp; | |
495 | { | |
496 | init_itemlist_from_varlist (itp, all_visible_functions); | |
497 | return 0; | |
498 | } | |
499 | ||
500 | static int | |
501 | it_init_hostnames (itp) | |
502 | ITEMLIST *itp; | |
503 | { | |
504 | STRINGLIST *sl; | |
505 | ||
7117c2d2 | 506 | sl = strlist_create (0); |
bb70624e | 507 | sl->list = get_hostname_list (); |
7117c2d2 | 508 | sl->list_len = sl->list ? strvec_len (sl->list) : 0; |
bb70624e JA |
509 | sl->list_size = sl->list_len; |
510 | itp->slist = sl; | |
511 | itp->flags |= LIST_DONTFREEMEMBERS|LIST_DONTFREE; | |
512 | return 0; | |
513 | } | |
514 | ||
515 | static int | |
516 | it_init_joblist (itp, jstate) | |
517 | ITEMLIST *itp; | |
518 | int jstate; | |
519 | { | |
520 | #if defined (JOB_CONTROL) | |
521 | STRINGLIST *sl; | |
f73dda09 | 522 | register int i; |
bb70624e JA |
523 | register PROCESS *p; |
524 | char *s, *t; | |
95732b49 JA |
525 | JOB *j; |
526 | JOB_STATE ws; /* wanted state */ | |
bb70624e | 527 | |
3185942a | 528 | ws = JNONE; |
bb70624e | 529 | if (jstate == 0) |
95732b49 | 530 | ws = JRUNNING; |
bb70624e | 531 | else if (jstate == 1) |
95732b49 | 532 | ws = JSTOPPED; |
bb70624e | 533 | |
95732b49 JA |
534 | sl = strlist_create (js.j_jobslots); |
535 | for (i = js.j_jobslots - 1; i >= 0; i--) | |
bb70624e | 536 | { |
95732b49 JA |
537 | j = get_job_by_jid (i); |
538 | if (j == 0) | |
bb70624e | 539 | continue; |
95732b49 JA |
540 | p = j->pipe; |
541 | if (jstate == -1 || JOBSTATE(i) == ws) | |
bb70624e JA |
542 | { |
543 | s = savestring (p->command); | |
544 | t = strpbrk (s, " \t\n"); | |
545 | if (t) | |
546 | *t = '\0'; | |
28ef6c31 | 547 | sl->list[sl->list_len++] = s; |
bb70624e JA |
548 | } |
549 | } | |
550 | itp->slist = sl; | |
551 | #else | |
552 | itp->slist = (STRINGLIST *)NULL; | |
553 | #endif | |
554 | return 0; | |
555 | } | |
556 | ||
557 | static int | |
558 | it_init_jobs (itp) | |
559 | ITEMLIST *itp; | |
560 | { | |
561 | return (it_init_joblist (itp, -1)); | |
562 | } | |
563 | ||
564 | static int | |
565 | it_init_running (itp) | |
566 | ITEMLIST *itp; | |
567 | { | |
568 | return (it_init_joblist (itp, 0)); | |
569 | } | |
570 | ||
571 | static int | |
572 | it_init_stopped (itp) | |
573 | ITEMLIST *itp; | |
574 | { | |
575 | return (it_init_joblist (itp, 1)); | |
576 | } | |
577 | ||
578 | static int | |
579 | it_init_keywords (itp) | |
580 | ITEMLIST *itp; | |
581 | { | |
582 | STRINGLIST *sl; | |
583 | register int i, n; | |
584 | ||
585 | for (n = 0; word_token_alist[n].word; n++) | |
586 | ; | |
7117c2d2 | 587 | sl = strlist_create (n); |
bb70624e JA |
588 | for (i = 0; i < n; i++) |
589 | sl->list[i] = word_token_alist[i].word; | |
590 | sl->list[sl->list_len = i] = (char *)NULL; | |
591 | itp->flags |= LIST_DONTFREEMEMBERS; | |
592 | itp->slist = sl; | |
593 | return 0; | |
594 | } | |
595 | ||
596 | static int | |
597 | it_init_signals (itp) | |
598 | ITEMLIST *itp; | |
599 | { | |
600 | STRINGLIST *sl; | |
601 | ||
7117c2d2 | 602 | sl = strlist_create (0); |
bb70624e | 603 | sl->list = signal_names; |
7117c2d2 | 604 | sl->list_len = strvec_len (sl->list); |
bb70624e JA |
605 | itp->flags |= LIST_DONTFREE; |
606 | itp->slist = sl; | |
607 | return 0; | |
608 | } | |
609 | ||
610 | static int | |
611 | it_init_variables (itp) | |
612 | ITEMLIST *itp; | |
613 | { | |
614 | init_itemlist_from_varlist (itp, all_visible_variables); | |
615 | return 0; | |
616 | } | |
617 | ||
618 | static int | |
619 | it_init_setopts (itp) | |
620 | ITEMLIST *itp; | |
621 | { | |
622 | STRINGLIST *sl; | |
623 | ||
7117c2d2 | 624 | sl = strlist_create (0); |
bb70624e | 625 | sl->list = get_minus_o_opts (); |
7117c2d2 | 626 | sl->list_len = strvec_len (sl->list); |
bb70624e JA |
627 | itp->slist = sl; |
628 | itp->flags |= LIST_DONTFREEMEMBERS; | |
629 | return 0; | |
630 | } | |
631 | ||
632 | static int | |
633 | it_init_shopts (itp) | |
634 | ITEMLIST *itp; | |
635 | { | |
636 | STRINGLIST *sl; | |
637 | ||
7117c2d2 | 638 | sl = strlist_create (0); |
bb70624e | 639 | sl->list = get_shopt_options (); |
7117c2d2 | 640 | sl->list_len = strvec_len (sl->list); |
bb70624e JA |
641 | itp->slist = sl; |
642 | itp->flags |= LIST_DONTFREEMEMBERS; | |
643 | return 0; | |
644 | } | |
645 | ||
646 | /* Generate a list of all matches for TEXT using the STRINGLIST in itp->slist | |
647 | as the list of possibilities. If the itemlist has been marked dirty or | |
648 | it should be regenerated every time, destroy the old STRINGLIST and make a | |
b80f6443 JA |
649 | new one before trying the match. TEXT is dequoted before attempting a |
650 | match. */ | |
bb70624e JA |
651 | static STRINGLIST * |
652 | gen_matches_from_itemlist (itp, text) | |
653 | ITEMLIST *itp; | |
28ef6c31 | 654 | const char *text; |
bb70624e JA |
655 | { |
656 | STRINGLIST *ret, *sl; | |
657 | int tlen, i, n; | |
b80f6443 | 658 | char *ntxt; |
bb70624e JA |
659 | |
660 | if ((itp->flags & (LIST_DIRTY|LIST_DYNAMIC)) || | |
661 | (itp->flags & LIST_INITIALIZED) == 0) | |
662 | { | |
0001803f | 663 | if (itp->flags & (LIST_DIRTY|LIST_DYNAMIC)) |
bb70624e JA |
664 | clean_itemlist (itp); |
665 | if ((itp->flags & LIST_INITIALIZED) == 0) | |
666 | initialize_itemlist (itp); | |
667 | } | |
f73dda09 JA |
668 | if (itp->slist == 0) |
669 | return ((STRINGLIST *)NULL); | |
7117c2d2 | 670 | ret = strlist_create (itp->slist->list_len+1); |
bb70624e | 671 | sl = itp->slist; |
b80f6443 JA |
672 | |
673 | ntxt = bash_dequote_text (text); | |
674 | tlen = STRLEN (ntxt); | |
675 | ||
bb70624e JA |
676 | for (i = n = 0; i < sl->list_len; i++) |
677 | { | |
b80f6443 | 678 | if (tlen == 0 || STREQN (sl->list[i], ntxt, tlen)) |
bb70624e JA |
679 | ret->list[n++] = STRDUP (sl->list[i]); |
680 | } | |
681 | ret->list[ret->list_len = n] = (char *)NULL; | |
b80f6443 JA |
682 | |
683 | FREE (ntxt); | |
bb70624e JA |
684 | return ret; |
685 | } | |
686 | ||
28ef6c31 | 687 | /* A wrapper for rl_filename_completion_function that dequotes the filename |
bb70624e JA |
688 | before attempting completions. */ |
689 | static char * | |
690 | pcomp_filename_completion_function (text, state) | |
28ef6c31 | 691 | const char *text; |
bb70624e JA |
692 | int state; |
693 | { | |
694 | static char *dfn; /* dequoted filename */ | |
695 | int qc; | |
696 | ||
697 | if (state == 0) | |
698 | { | |
699 | FREE (dfn); | |
700 | /* remove backslashes quoting special characters in filenames. */ | |
3185942a JA |
701 | #if 1 |
702 | if (RL_ISSTATE (RL_STATE_COMPLETING) && rl_filename_dequoting_function) | |
703 | #else | |
bb70624e | 704 | if (rl_filename_dequoting_function) |
3185942a | 705 | #endif |
bb70624e | 706 | { |
b80f6443 JA |
707 | /* Use rl_completion_quote_character because any single or |
708 | double quotes have been removed by the time TEXT makes it | |
709 | here, and we don't want to remove backslashes inside | |
710 | quoted strings. */ | |
3185942a | 711 | dfn = (*rl_filename_dequoting_function) ((char *)text, rl_completion_quote_character); |
bb70624e JA |
712 | } |
713 | else | |
714 | dfn = savestring (text); | |
715 | } | |
716 | ||
28ef6c31 | 717 | return (rl_filename_completion_function (dfn, state)); |
bb70624e JA |
718 | } |
719 | ||
720 | #define GEN_COMPS(bmap, flag, it, text, glist, tlist) \ | |
721 | do { \ | |
722 | if (bmap & flag) \ | |
723 | { \ | |
724 | tlist = gen_matches_from_itemlist (it, text); \ | |
f73dda09 JA |
725 | if (tlist) \ |
726 | { \ | |
7117c2d2 JA |
727 | glist = strlist_append (glist, tlist); \ |
728 | strlist_dispose (tlist); \ | |
f73dda09 | 729 | } \ |
bb70624e JA |
730 | } \ |
731 | } while (0) | |
732 | ||
733 | #define GEN_XCOMPS(bmap, flag, text, func, cmatches, glist, tlist) \ | |
734 | do { \ | |
735 | if (bmap & flag) \ | |
736 | { \ | |
28ef6c31 | 737 | cmatches = rl_completion_matches (text, func); \ |
bb70624e | 738 | tlist = completions_to_stringlist (cmatches); \ |
7117c2d2 JA |
739 | glist = strlist_append (glist, tlist); \ |
740 | strvec_dispose (cmatches); \ | |
741 | strlist_dispose (tlist); \ | |
bb70624e JA |
742 | } \ |
743 | } while (0) | |
744 | ||
745 | /* Functions to generate lists of matches from the actions member of CS. */ | |
746 | ||
747 | static STRINGLIST * | |
748 | gen_action_completions (cs, text) | |
749 | COMPSPEC *cs; | |
28ef6c31 | 750 | const char *text; |
bb70624e JA |
751 | { |
752 | STRINGLIST *ret, *tmatches; | |
28ef6c31 | 753 | char **cmatches; /* from rl_completion_matches ... */ |
bb70624e JA |
754 | unsigned long flags; |
755 | ||
756 | ret = tmatches = (STRINGLIST *)NULL; | |
757 | flags = cs->actions; | |
758 | ||
759 | GEN_COMPS (flags, CA_ALIAS, &it_aliases, text, ret, tmatches); | |
760 | GEN_COMPS (flags, CA_ARRAYVAR, &it_arrayvars, text, ret, tmatches); | |
761 | GEN_COMPS (flags, CA_BINDING, &it_bindings, text, ret, tmatches); | |
762 | GEN_COMPS (flags, CA_BUILTIN, &it_builtins, text, ret, tmatches); | |
763 | GEN_COMPS (flags, CA_DISABLED, &it_disabled, text, ret, tmatches); | |
764 | GEN_COMPS (flags, CA_ENABLED, &it_enabled, text, ret, tmatches); | |
765 | GEN_COMPS (flags, CA_EXPORT, &it_exports, text, ret, tmatches); | |
766 | GEN_COMPS (flags, CA_FUNCTION, &it_functions, text, ret, tmatches); | |
767 | GEN_COMPS (flags, CA_HOSTNAME, &it_hostnames, text, ret, tmatches); | |
768 | GEN_COMPS (flags, CA_JOB, &it_jobs, text, ret, tmatches); | |
769 | GEN_COMPS (flags, CA_KEYWORD, &it_keywords, text, ret, tmatches); | |
770 | GEN_COMPS (flags, CA_RUNNING, &it_running, text, ret, tmatches); | |
771 | GEN_COMPS (flags, CA_SETOPT, &it_setopts, text, ret, tmatches); | |
772 | GEN_COMPS (flags, CA_SHOPT, &it_shopts, text, ret, tmatches); | |
773 | GEN_COMPS (flags, CA_SIGNAL, &it_signals, text, ret, tmatches); | |
774 | GEN_COMPS (flags, CA_STOPPED, &it_stopped, text, ret, tmatches); | |
775 | GEN_COMPS (flags, CA_VARIABLE, &it_variables, text, ret, tmatches); | |
776 | ||
777 | GEN_XCOMPS(flags, CA_COMMAND, text, command_word_completion_function, cmatches, ret, tmatches); | |
778 | GEN_XCOMPS(flags, CA_FILE, text, pcomp_filename_completion_function, cmatches, ret, tmatches); | |
28ef6c31 | 779 | GEN_XCOMPS(flags, CA_USER, text, rl_username_completion_function, cmatches, ret, tmatches); |
f73dda09 | 780 | GEN_XCOMPS(flags, CA_GROUP, text, bash_groupname_completion_function, cmatches, ret, tmatches); |
7117c2d2 | 781 | GEN_XCOMPS(flags, CA_SERVICE, text, bash_servicename_completion_function, cmatches, ret, tmatches); |
bb70624e JA |
782 | |
783 | /* And lastly, the special case for directories */ | |
784 | if (flags & CA_DIRECTORY) | |
785 | { | |
7117c2d2 | 786 | rl_completion_mark_symlink_dirs = 1; /* override user preference */ |
bb70624e JA |
787 | cmatches = bash_directory_completion_matches (text); |
788 | tmatches = completions_to_stringlist (cmatches); | |
7117c2d2 JA |
789 | ret = strlist_append (ret, tmatches); |
790 | strvec_dispose (cmatches); | |
791 | strlist_dispose (tmatches); | |
bb70624e JA |
792 | } |
793 | ||
794 | return ret; | |
795 | } | |
796 | ||
797 | /* Generate a list of matches for CS->globpat. Unresolved: should this use | |
798 | TEXT as a match prefix, or just go without? Currently, the code does not | |
799 | use TEXT, just globs CS->globpat and returns the results. If we do decide | |
800 | to use TEXT, we should call quote_string_for_globbing before the call to | |
801 | glob_filename. */ | |
802 | static STRINGLIST * | |
803 | gen_globpat_matches (cs, text) | |
804 | COMPSPEC *cs; | |
28ef6c31 | 805 | const char *text; |
bb70624e JA |
806 | { |
807 | STRINGLIST *sl; | |
bb70624e | 808 | |
7117c2d2 JA |
809 | sl = strlist_create (0); |
810 | sl->list = glob_filename (cs->globpat, 0); | |
bb70624e JA |
811 | if (GLOB_FAILED (sl->list)) |
812 | sl->list = (char **)NULL; | |
813 | if (sl->list) | |
7117c2d2 | 814 | sl->list_len = sl->list_size = strvec_len (sl->list); |
bb70624e JA |
815 | return sl; |
816 | } | |
817 | ||
818 | /* Perform the shell word expansions on CS->words and return the results. | |
819 | Again, this ignores TEXT. */ | |
820 | static STRINGLIST * | |
821 | gen_wordlist_matches (cs, text) | |
822 | COMPSPEC *cs; | |
28ef6c31 | 823 | const char *text; |
bb70624e JA |
824 | { |
825 | WORD_LIST *l, *l2; | |
826 | STRINGLIST *sl; | |
0628567a | 827 | int nw, tlen; |
b80f6443 | 828 | char *ntxt; /* dequoted TEXT to use in comparisons */ |
bb70624e JA |
829 | |
830 | if (cs->words == 0 || cs->words[0] == '\0') | |
831 | return ((STRINGLIST *)NULL); | |
832 | ||
833 | /* This used to be a simple expand_string(cs->words, 0), but that won't | |
834 | do -- there's no way to split a simple list into individual words | |
835 | that way, since the shell semantics say that word splitting is done | |
836 | only on the results of expansion. */ | |
0001803f | 837 | l = split_at_delims (cs->words, strlen (cs->words), (char *)NULL, -1, 0, (int *)NULL, (int *)NULL); |
bb70624e JA |
838 | if (l == 0) |
839 | return ((STRINGLIST *)NULL); | |
840 | /* This will jump back to the top level if the expansion fails... */ | |
841 | l2 = expand_words_shellexp (l); | |
842 | dispose_words (l); | |
843 | ||
844 | nw = list_length (l2); | |
7117c2d2 | 845 | sl = strlist_create (nw + 1); |
b80f6443 JA |
846 | |
847 | ntxt = bash_dequote_text (text); | |
848 | tlen = STRLEN (ntxt); | |
bb70624e JA |
849 | |
850 | for (nw = 0, l = l2; l; l = l->next) | |
851 | { | |
b80f6443 | 852 | if (tlen == 0 || STREQN (l->word->word, ntxt, tlen)) |
28ef6c31 | 853 | sl->list[nw++] = STRDUP (l->word->word); |
bb70624e JA |
854 | } |
855 | sl->list[sl->list_len = nw] = (char *)NULL; | |
856 | ||
95732b49 | 857 | dispose_words (l2); |
b80f6443 | 858 | FREE (ntxt); |
bb70624e JA |
859 | return sl; |
860 | } | |
861 | ||
862 | #ifdef ARRAY_VARS | |
863 | ||
864 | static SHELL_VAR * | |
865 | bind_comp_words (lwords) | |
866 | WORD_LIST *lwords; | |
867 | { | |
868 | SHELL_VAR *v; | |
869 | ||
870 | v = find_variable ("COMP_WORDS"); | |
871 | if (v == 0) | |
872 | v = make_new_array_variable ("COMP_WORDS"); | |
873 | if (readonly_p (v)) | |
874 | VUNSETATTR (v, att_readonly); | |
875 | if (array_p (v) == 0) | |
876 | v = convert_var_to_array (v); | |
95732b49 | 877 | v = assign_array_var_from_word_list (v, lwords, 0); |
eb873671 JA |
878 | |
879 | VUNSETATTR (v, att_invisible); | |
bb70624e JA |
880 | return v; |
881 | } | |
882 | #endif /* ARRAY_VARS */ | |
883 | ||
884 | static void | |
885 | bind_compfunc_variables (line, ind, lwords, cw, exported) | |
886 | char *line; | |
887 | int ind; | |
888 | WORD_LIST *lwords; | |
889 | int cw, exported; | |
890 | { | |
f73dda09 | 891 | char ibuf[INT_STRLEN_BOUND(int) + 1]; |
bb70624e JA |
892 | char *value; |
893 | SHELL_VAR *v; | |
894 | ||
895 | /* Set the variables that the function expects while it executes. Maybe | |
896 | these should be in the function environment (temporary_env). */ | |
95732b49 | 897 | v = bind_variable ("COMP_LINE", line, 0); |
bb70624e JA |
898 | if (v && exported) |
899 | VSETATTR(v, att_exported); | |
900 | ||
f73dda09 | 901 | value = inttostr (ind, ibuf, sizeof(ibuf)); |
bb70624e JA |
902 | v = bind_int_variable ("COMP_POINT", value); |
903 | if (v && exported) | |
904 | VSETATTR(v, att_exported); | |
905 | ||
3185942a JA |
906 | value = inttostr (rl_completion_type, ibuf, sizeof (ibuf)); |
907 | v = bind_int_variable ("COMP_TYPE", value); | |
908 | if (v && exported) | |
909 | VSETATTR(v, att_exported); | |
910 | ||
911 | value = inttostr (rl_completion_invoking_key, ibuf, sizeof (ibuf)); | |
912 | v = bind_int_variable ("COMP_KEY", value); | |
913 | if (v && exported) | |
914 | VSETATTR(v, att_exported); | |
915 | ||
bb70624e JA |
916 | /* Since array variables can't be exported, we don't bother making the |
917 | array of words. */ | |
918 | if (exported == 0) | |
919 | { | |
920 | #ifdef ARRAY_VARS | |
921 | v = bind_comp_words (lwords); | |
f73dda09 | 922 | value = inttostr (cw, ibuf, sizeof(ibuf)); |
bb70624e JA |
923 | bind_int_variable ("COMP_CWORD", value); |
924 | #endif | |
925 | } | |
926 | else | |
927 | array_needs_making = 1; | |
928 | } | |
929 | ||
930 | static void | |
931 | unbind_compfunc_variables (exported) | |
932 | int exported; | |
933 | { | |
7117c2d2 JA |
934 | unbind_variable ("COMP_LINE"); |
935 | unbind_variable ("COMP_POINT"); | |
3185942a JA |
936 | unbind_variable ("COMP_TYPE"); |
937 | unbind_variable ("COMP_KEY"); | |
bb70624e | 938 | #ifdef ARRAY_VARS |
7117c2d2 JA |
939 | unbind_variable ("COMP_WORDS"); |
940 | unbind_variable ("COMP_CWORD"); | |
bb70624e JA |
941 | #endif |
942 | if (exported) | |
943 | array_needs_making = 1; | |
944 | } | |
945 | ||
946 | /* Build the list of words to pass to a function or external command | |
947 | as arguments. When the function or command is invoked, | |
948 | ||
949 | $0 == function or command being invoked | |
950 | $1 == command name | |
17345e5a JA |
951 | $2 == word to be completed (possibly null) |
952 | $3 == previous word | |
bb70624e JA |
953 | |
954 | Functions can access all of the words in the current command line | |
17345e5a JA |
955 | with the COMP_WORDS array. External commands cannot; they have to |
956 | make do with the COMP_LINE and COMP_POINT variables. */ | |
bb70624e JA |
957 | |
958 | static WORD_LIST * | |
959 | build_arg_list (cmd, text, lwords, ind) | |
960 | char *cmd; | |
f73dda09 | 961 | const char *text; |
bb70624e JA |
962 | WORD_LIST *lwords; |
963 | int ind; | |
964 | { | |
965 | WORD_LIST *ret, *cl, *l; | |
966 | WORD_DESC *w; | |
967 | int i; | |
968 | ||
969 | ret = (WORD_LIST *)NULL; | |
970 | w = make_word (cmd); | |
971 | ret = make_word_list (w, (WORD_LIST *)NULL); | |
972 | ||
973 | w = (lwords && lwords->word) ? copy_word (lwords->word) : make_word (""); | |
974 | cl = ret->next = make_word_list (w, (WORD_LIST *)NULL); | |
975 | ||
976 | w = make_word (text); | |
977 | cl->next = make_word_list (w, (WORD_LIST *)NULL); | |
978 | cl = cl->next; | |
979 | ||
980 | /* Search lwords for current word */ | |
981 | for (l = lwords, i = 1; l && i < ind-1; l = l->next, i++) | |
982 | ; | |
983 | w = (l && l->word) ? copy_word (l->word) : make_word (""); | |
984 | cl->next = make_word_list (w, (WORD_LIST *)NULL); | |
985 | ||
986 | return ret; | |
987 | } | |
988 | ||
989 | /* Build a command string with | |
990 | $0 == cs->funcname (function to execute for completion list) | |
991 | $1 == command name (command being completed) | |
992 | $2 = word to be completed (possibly null) | |
993 | $3 = previous word | |
994 | and run in the current shell. The function should put its completion | |
995 | list into the array variable COMPREPLY. We build a STRINGLIST | |
996 | from the results and return it. | |
997 | ||
998 | Since the shell function should return its list of matches in an array | |
999 | variable, this does nothing if arrays are not compiled into the shell. */ | |
1000 | ||
1001 | static STRINGLIST * | |
0001803f | 1002 | gen_shell_function_matches (cs, text, line, ind, lwords, nw, cw, foundp) |
bb70624e | 1003 | COMPSPEC *cs; |
f73dda09 JA |
1004 | const char *text; |
1005 | char *line; | |
bb70624e JA |
1006 | int ind; |
1007 | WORD_LIST *lwords; | |
1008 | int nw, cw; | |
0001803f | 1009 | int *foundp; |
bb70624e JA |
1010 | { |
1011 | char *funcname; | |
1012 | STRINGLIST *sl; | |
1013 | SHELL_VAR *f, *v; | |
1014 | WORD_LIST *cmdlist; | |
0001803f | 1015 | int fval, found; |
95732b49 | 1016 | sh_parser_state_t ps; |
17345e5a | 1017 | sh_parser_state_t * restrict pps; |
bb70624e JA |
1018 | #if defined (ARRAY_VARS) |
1019 | ARRAY *a; | |
1020 | #endif | |
1021 | ||
0001803f CR |
1022 | found = 0; |
1023 | if (foundp) | |
1024 | *foundp = found; | |
1025 | ||
bb70624e JA |
1026 | funcname = cs->funcname; |
1027 | f = find_function (funcname); | |
1028 | if (f == 0) | |
1029 | { | |
b80f6443 | 1030 | internal_error (_("completion: function `%s' not found"), funcname); |
28ef6c31 | 1031 | rl_ding (); |
bb70624e JA |
1032 | rl_on_new_line (); |
1033 | return ((STRINGLIST *)NULL); | |
1034 | } | |
1035 | ||
1036 | #if !defined (ARRAY_VARS) | |
1037 | return ((STRINGLIST *)NULL); | |
1038 | #else | |
1039 | ||
1040 | /* We pass cw - 1 because command_line_to_word_list returns indices that are | |
1041 | 1-based, while bash arrays are 0-based. */ | |
1042 | bind_compfunc_variables (line, ind, lwords, cw - 1, 0); | |
1043 | ||
1044 | cmdlist = build_arg_list (funcname, text, lwords, cw); | |
95732b49 | 1045 | |
17345e5a | 1046 | pps = &ps; |
89a92869 | 1047 | save_parser_state (pps); |
17345e5a JA |
1048 | begin_unwind_frame ("gen-shell-function-matches"); |
1049 | add_unwind_protect (restore_parser_state, (char *)pps); | |
1050 | add_unwind_protect (dispose_words, (char *)cmdlist); | |
1051 | add_unwind_protect (unbind_compfunc_variables, (char *)0); | |
1052 | ||
bb70624e | 1053 | fval = execute_shell_function (f, cmdlist); |
17345e5a JA |
1054 | |
1055 | discard_unwind_frame ("gen-shell-function-matches"); | |
1056 | restore_parser_state (pps); | |
bb70624e | 1057 | |
0001803f CR |
1058 | found = fval != EX_NOTFOUND; |
1059 | if (fval == EX_RETRYFAIL) | |
1060 | found |= PCOMP_RETRYFAIL; | |
1061 | if (foundp) | |
1062 | *foundp = found; | |
1063 | ||
bb70624e JA |
1064 | /* Now clean up and destroy everything. */ |
1065 | dispose_words (cmdlist); | |
1066 | unbind_compfunc_variables (0); | |
1067 | ||
1068 | /* The list of completions is returned in the array variable COMPREPLY. */ | |
1069 | v = find_variable ("COMPREPLY"); | |
1070 | if (v == 0) | |
1071 | return ((STRINGLIST *)NULL); | |
1072 | if (array_p (v) == 0) | |
1073 | v = convert_var_to_array (v); | |
1074 | ||
eb873671 JA |
1075 | VUNSETATTR (v, att_invisible); |
1076 | ||
bb70624e | 1077 | a = array_cell (v); |
0001803f | 1078 | if (found == 0 || (found & PCOMP_RETRYFAIL) || a == 0 || array_empty (a)) |
bb70624e JA |
1079 | sl = (STRINGLIST *)NULL; |
1080 | else | |
1081 | { | |
1082 | /* XXX - should we filter the list of completions so only those matching | |
1083 | TEXT are returned? Right now, we do not. */ | |
7117c2d2 | 1084 | sl = strlist_create (0); |
bb70624e JA |
1085 | sl->list = array_to_argv (a); |
1086 | sl->list_len = sl->list_size = array_num_elements (a); | |
1087 | } | |
1088 | ||
1089 | /* XXX - should we unbind COMPREPLY here? */ | |
7117c2d2 | 1090 | unbind_variable ("COMPREPLY"); |
bb70624e JA |
1091 | |
1092 | return (sl); | |
1093 | #endif | |
1094 | } | |
1095 | ||
1096 | /* Build a command string with | |
1097 | $0 == cs->command (command to execute for completion list) | |
1098 | $1 == command name (command being completed) | |
1099 | $2 = word to be completed (possibly null) | |
1100 | $3 = previous word | |
1101 | and run in with command substitution. Parse the results, one word | |
1102 | per line, with backslashes allowed to escape newlines. Build a | |
1103 | STRINGLIST from the results and return it. */ | |
1104 | ||
1105 | static STRINGLIST * | |
1106 | gen_command_matches (cs, text, line, ind, lwords, nw, cw) | |
1107 | COMPSPEC *cs; | |
f73dda09 JA |
1108 | const char *text; |
1109 | char *line; | |
bb70624e JA |
1110 | int ind; |
1111 | WORD_LIST *lwords; | |
1112 | int nw, cw; | |
1113 | { | |
1114 | char *csbuf, *cscmd, *t; | |
1115 | int cmdlen, cmdsize, n, ws, we; | |
1116 | WORD_LIST *cmdlist, *cl; | |
3185942a | 1117 | WORD_DESC *tw; |
bb70624e JA |
1118 | STRINGLIST *sl; |
1119 | ||
1120 | bind_compfunc_variables (line, ind, lwords, cw, 1); | |
1121 | cmdlist = build_arg_list (cs->command, text, lwords, cw); | |
1122 | ||
1123 | /* Estimate the size needed for the buffer. */ | |
1124 | n = strlen (cs->command); | |
1125 | cmdsize = n + 1; | |
1126 | for (cl = cmdlist->next; cl; cl = cl->next) | |
1127 | cmdsize += STRLEN (cl->word->word) + 3; | |
1128 | cmdsize += 2; | |
1129 | ||
1130 | /* allocate the string for the command and fill it in. */ | |
f73dda09 | 1131 | cscmd = (char *)xmalloc (cmdsize + 1); |
bb70624e JA |
1132 | |
1133 | strcpy (cscmd, cs->command); /* $0 */ | |
1134 | cmdlen = n; | |
1135 | cscmd[cmdlen++] = ' '; | |
1136 | for (cl = cmdlist->next; cl; cl = cl->next) /* $1, $2, $3, ... */ | |
1137 | { | |
28ef6c31 | 1138 | t = sh_single_quote (cl->word->word ? cl->word->word : ""); |
bb70624e JA |
1139 | n = strlen (t); |
1140 | RESIZE_MALLOCED_BUFFER (cscmd, cmdlen, n + 2, cmdsize, 64); | |
1141 | strcpy (cscmd + cmdlen, t); | |
1142 | cmdlen += n; | |
1143 | if (cl->next) | |
1144 | cscmd[cmdlen++] = ' '; | |
1145 | free (t); | |
1146 | } | |
1147 | cscmd[cmdlen] = '\0'; | |
1148 | ||
3185942a JA |
1149 | tw = command_substitute (cscmd, 0); |
1150 | csbuf = tw ? tw->word : (char *)NULL; | |
1151 | dispose_word_desc (tw); | |
bb70624e JA |
1152 | |
1153 | /* Now clean up and destroy everything. */ | |
1154 | dispose_words (cmdlist); | |
1155 | free (cscmd); | |
1156 | unbind_compfunc_variables (1); | |
1157 | ||
1158 | if (csbuf == 0 || *csbuf == '\0') | |
1159 | { | |
1160 | FREE (csbuf); | |
1161 | return ((STRINGLIST *)NULL); | |
1162 | } | |
1163 | ||
1164 | /* Now break CSBUF up at newlines, with backslash allowed to escape a | |
1165 | newline, and put the individual words into a STRINGLIST. */ | |
7117c2d2 | 1166 | sl = strlist_create (16); |
bb70624e JA |
1167 | for (ws = 0; csbuf[ws]; ) |
1168 | { | |
1169 | we = ws; | |
1170 | while (csbuf[we] && csbuf[we] != '\n') | |
1171 | { | |
1172 | if (csbuf[we] == '\\' && csbuf[we+1] == '\n') | |
1173 | we++; | |
1174 | we++; | |
1175 | } | |
1176 | t = substring (csbuf, ws, we); | |
1177 | if (sl->list_len >= sl->list_size - 1) | |
7117c2d2 | 1178 | strlist_resize (sl, sl->list_size + 16); |
bb70624e JA |
1179 | sl->list[sl->list_len++] = t; |
1180 | while (csbuf[we] == '\n') we++; | |
1181 | ws = we; | |
1182 | } | |
1183 | sl->list[sl->list_len] = (char *)NULL; | |
1184 | ||
1185 | free (csbuf); | |
1186 | return (sl); | |
1187 | } | |
1188 | ||
1189 | static WORD_LIST * | |
1190 | command_line_to_word_list (line, llen, sentinel, nwp, cwp) | |
1191 | char *line; | |
1192 | int llen, sentinel, *nwp, *cwp; | |
1193 | { | |
1194 | WORD_LIST *ret; | |
1195 | char *delims; | |
0001803f CR |
1196 | |
1197 | #if 0 | |
1198 | delims = "()<>;&| \t\n"; /* shell metacharacters break words */ | |
1199 | #else | |
1200 | delims = rl_completer_word_break_characters; | |
1201 | #endif | |
1202 | ret = split_at_delims (line, llen, delims, sentinel, SD_NOQUOTEDELIM, nwp, cwp); | |
bb70624e JA |
1203 | return (ret); |
1204 | } | |
1205 | ||
1206 | /* Evaluate COMPSPEC *cs and return all matches for WORD. */ | |
1207 | ||
1208 | STRINGLIST * | |
0001803f | 1209 | gen_compspec_completions (cs, cmd, word, start, end, foundp) |
bb70624e | 1210 | COMPSPEC *cs; |
28ef6c31 JA |
1211 | const char *cmd; |
1212 | const char *word; | |
bb70624e | 1213 | int start, end; |
0001803f | 1214 | int *foundp; |
bb70624e JA |
1215 | { |
1216 | STRINGLIST *ret, *tmatches; | |
f73dda09 | 1217 | char *line; |
0001803f | 1218 | int llen, nw, cw, found, foundf; |
bb70624e | 1219 | WORD_LIST *lwords; |
b80f6443 | 1220 | COMPSPEC *tcs; |
bb70624e | 1221 | |
0001803f CR |
1222 | found = 1; |
1223 | ||
7117c2d2 JA |
1224 | #ifdef DEBUG |
1225 | debug_printf ("gen_compspec_completions (%s, %s, %d, %d)", cmd, word, start, end); | |
1226 | debug_printf ("gen_compspec_completions: %s -> %p", cmd, cs); | |
1227 | #endif | |
bb70624e | 1228 | ret = gen_action_completions (cs, word); |
7117c2d2 | 1229 | #ifdef DEBUG |
bb70624e JA |
1230 | if (ret && progcomp_debug) |
1231 | { | |
f73dda09 | 1232 | debug_printf ("gen_action_completions (%p, %s) -->", cs, word); |
7117c2d2 | 1233 | strlist_print (ret, "\t"); |
bb70624e JA |
1234 | rl_on_new_line (); |
1235 | } | |
7117c2d2 | 1236 | #endif |
bb70624e JA |
1237 | |
1238 | /* Now we start generating completions based on the other members of CS. */ | |
1239 | if (cs->globpat) | |
1240 | { | |
1241 | tmatches = gen_globpat_matches (cs, word); | |
1242 | if (tmatches) | |
1243 | { | |
7117c2d2 | 1244 | #ifdef DEBUG |
bb70624e JA |
1245 | if (progcomp_debug) |
1246 | { | |
f73dda09 | 1247 | debug_printf ("gen_globpat_matches (%p, %s) -->", cs, word); |
7117c2d2 | 1248 | strlist_print (tmatches, "\t"); |
bb70624e JA |
1249 | rl_on_new_line (); |
1250 | } | |
7117c2d2 JA |
1251 | #endif |
1252 | ret = strlist_append (ret, tmatches); | |
1253 | strlist_dispose (tmatches); | |
bb70624e JA |
1254 | rl_filename_completion_desired = 1; |
1255 | } | |
1256 | } | |
1257 | ||
1258 | if (cs->words) | |
1259 | { | |
1260 | tmatches = gen_wordlist_matches (cs, word); | |
1261 | if (tmatches) | |
1262 | { | |
7117c2d2 | 1263 | #ifdef DEBUG |
bb70624e JA |
1264 | if (progcomp_debug) |
1265 | { | |
f73dda09 | 1266 | debug_printf ("gen_wordlist_matches (%p, %s) -->", cs, word); |
7117c2d2 | 1267 | strlist_print (tmatches, "\t"); |
bb70624e JA |
1268 | rl_on_new_line (); |
1269 | } | |
7117c2d2 JA |
1270 | #endif |
1271 | ret = strlist_append (ret, tmatches); | |
1272 | strlist_dispose (tmatches); | |
bb70624e JA |
1273 | } |
1274 | } | |
1275 | ||
1276 | lwords = (WORD_LIST *)NULL; | |
1277 | line = (char *)NULL; | |
1278 | if (cs->command || cs->funcname) | |
1279 | { | |
1280 | /* If we have a command or function to execute, we need to first break | |
1281 | the command line into individual words, find the number of words, | |
1282 | and find the word in the list containing the word to be completed. */ | |
1283 | line = substring (rl_line_buffer, start, end); | |
1284 | llen = end - start; | |
1285 | ||
7117c2d2 | 1286 | #ifdef DEBUG |
f73dda09 | 1287 | debug_printf ("command_line_to_word_list (%s, %d, %d, %p, %p)", |
bb70624e | 1288 | line, llen, rl_point - start, &nw, &cw); |
7117c2d2 | 1289 | #endif |
bb70624e | 1290 | lwords = command_line_to_word_list (line, llen, rl_point - start, &nw, &cw); |
7117c2d2 | 1291 | #ifdef DEBUG |
bb70624e JA |
1292 | if (lwords == 0 && llen > 0) |
1293 | debug_printf ("ERROR: command_line_to_word_list returns NULL"); | |
1294 | else if (progcomp_debug) | |
1295 | { | |
1296 | debug_printf ("command_line_to_word_list -->"); | |
1297 | printf ("\t"); | |
1298 | print_word_list (lwords, "!"); | |
1299 | printf ("\n"); | |
1300 | fflush(stdout); | |
1301 | rl_on_new_line (); | |
1302 | } | |
7117c2d2 | 1303 | #endif |
bb70624e JA |
1304 | } |
1305 | ||
1306 | if (cs->funcname) | |
1307 | { | |
0001803f CR |
1308 | foundf = 0; |
1309 | tmatches = gen_shell_function_matches (cs, word, line, rl_point - start, lwords, nw, cw, &foundf); | |
1310 | if (foundf != 0) | |
1311 | found = foundf; | |
bb70624e JA |
1312 | if (tmatches) |
1313 | { | |
7117c2d2 | 1314 | #ifdef DEBUG |
bb70624e JA |
1315 | if (progcomp_debug) |
1316 | { | |
f73dda09 | 1317 | debug_printf ("gen_shell_function_matches (%p, %s, %p, %d, %d) -->", cs, word, lwords, nw, cw); |
7117c2d2 | 1318 | strlist_print (tmatches, "\t"); |
bb70624e JA |
1319 | rl_on_new_line (); |
1320 | } | |
7117c2d2 JA |
1321 | #endif |
1322 | ret = strlist_append (ret, tmatches); | |
1323 | strlist_dispose (tmatches); | |
bb70624e JA |
1324 | } |
1325 | } | |
1326 | ||
1327 | if (cs->command) | |
1328 | { | |
1329 | tmatches = gen_command_matches (cs, word, line, rl_point - start, lwords, nw, cw); | |
1330 | if (tmatches) | |
1331 | { | |
7117c2d2 | 1332 | #ifdef DEBUG |
bb70624e JA |
1333 | if (progcomp_debug) |
1334 | { | |
f73dda09 | 1335 | debug_printf ("gen_command_matches (%p, %s, %p, %d, %d) -->", cs, word, lwords, nw, cw); |
7117c2d2 | 1336 | strlist_print (tmatches, "\t"); |
bb70624e JA |
1337 | rl_on_new_line (); |
1338 | } | |
7117c2d2 JA |
1339 | #endif |
1340 | ret = strlist_append (ret, tmatches); | |
1341 | strlist_dispose (tmatches); | |
bb70624e JA |
1342 | } |
1343 | } | |
1344 | ||
1345 | if (cs->command || cs->funcname) | |
1346 | { | |
1347 | if (lwords) | |
1348 | dispose_words (lwords); | |
1349 | FREE (line); | |
1350 | } | |
1351 | ||
0001803f CR |
1352 | if (foundp) |
1353 | *foundp = found; | |
1354 | ||
1355 | if (found == 0 || (found & PCOMP_RETRYFAIL)) | |
1356 | { | |
1357 | strlist_dispose (ret); | |
1358 | return NULL; | |
1359 | } | |
1360 | ||
bb70624e JA |
1361 | if (cs->filterpat) |
1362 | { | |
1363 | tmatches = filter_stringlist (ret, cs->filterpat, word); | |
7117c2d2 | 1364 | #ifdef DEBUG |
bb70624e JA |
1365 | if (progcomp_debug) |
1366 | { | |
f73dda09 | 1367 | debug_printf ("filter_stringlist (%p, %s, %s) -->", ret, cs->filterpat, word); |
7117c2d2 | 1368 | strlist_print (tmatches, "\t"); |
bb70624e JA |
1369 | rl_on_new_line (); |
1370 | } | |
7117c2d2 | 1371 | #endif |
bb70624e JA |
1372 | if (ret && ret != tmatches) |
1373 | { | |
1374 | FREE (ret->list); | |
1375 | free (ret); | |
1376 | } | |
1377 | ret = tmatches; | |
1378 | } | |
1379 | ||
1380 | if (cs->prefix || cs->suffix) | |
7117c2d2 | 1381 | ret = strlist_prefix_suffix (ret, cs->prefix, cs->suffix); |
bb70624e | 1382 | |
28ef6c31 JA |
1383 | /* If no matches have been generated and the user has specified that |
1384 | directory completion should be done as a default, call | |
1385 | gen_action_completions again to generate a list of matching directory | |
1386 | names. */ | |
1387 | if ((ret == 0 || ret->list_len == 0) && (cs->options & COPT_DIRNAMES)) | |
1388 | { | |
b80f6443 JA |
1389 | tcs = compspec_create (); |
1390 | tcs->actions = CA_DIRECTORY; | |
1391 | ret = gen_action_completions (tcs, word); | |
1392 | compspec_dispose (tcs); | |
1393 | } | |
1394 | else if (cs->options & COPT_PLUSDIRS) | |
1395 | { | |
1396 | tcs = compspec_create (); | |
1397 | tcs->actions = CA_DIRECTORY; | |
1398 | tmatches = gen_action_completions (tcs, word); | |
1399 | ret = strlist_append (ret, tmatches); | |
1400 | strlist_dispose (tmatches); | |
1401 | compspec_dispose (tcs); | |
28ef6c31 JA |
1402 | } |
1403 | ||
bb70624e JA |
1404 | return (ret); |
1405 | } | |
1406 | ||
3185942a JA |
1407 | void |
1408 | pcomp_set_readline_variables (flags, nval) | |
1409 | int flags, nval; | |
1410 | { | |
1411 | /* If the user specified that the compspec returns filenames, make | |
1412 | sure that readline knows it. */ | |
1413 | if (flags & COPT_FILENAMES) | |
1414 | rl_filename_completion_desired = nval; | |
1415 | /* If the user doesn't want a space appended, tell readline. */ | |
1416 | if (flags & COPT_NOSPACE) | |
1417 | rl_completion_suppress_append = nval; | |
1418 | } | |
1419 | ||
1420 | /* Set or unset FLAGS in the options word of the current compspec. | |
1421 | SET_OR_UNSET is 1 for setting, 0 for unsetting. */ | |
1422 | void | |
1423 | pcomp_set_compspec_options (cs, flags, set_or_unset) | |
1424 | COMPSPEC *cs; | |
1425 | int flags, set_or_unset; | |
1426 | { | |
1427 | if (cs == 0 && ((cs = pcomp_curcs) == 0)) | |
1428 | return; | |
1429 | if (set_or_unset) | |
1430 | cs->options |= flags; | |
1431 | else | |
1432 | cs->options &= ~flags; | |
1433 | } | |
1434 | ||
0001803f CR |
1435 | static STRINGLIST * |
1436 | gen_progcomp_completions (ocmd, cmd, word, start, end, foundp, retryp, lastcs) | |
1437 | const char *ocmd; | |
28ef6c31 JA |
1438 | const char *cmd; |
1439 | const char *word; | |
0001803f CR |
1440 | int start, end; |
1441 | int *foundp, *retryp; | |
1442 | COMPSPEC **lastcs; | |
bb70624e | 1443 | { |
3185942a | 1444 | COMPSPEC *cs, *oldcs; |
3185942a | 1445 | const char *oldcmd; |
0001803f | 1446 | STRINGLIST *ret; |
bb70624e | 1447 | |
0001803f CR |
1448 | cs = progcomp_search (ocmd); |
1449 | ||
1450 | if (cs == 0 || cs == *lastcs) | |
1451 | return (NULL); | |
1452 | ||
1453 | if (*lastcs) | |
1454 | compspec_dispose (*lastcs); | |
1455 | cs->refcount++; /* XXX */ | |
1456 | *lastcs = cs; | |
bb70624e | 1457 | |
b80f6443 JA |
1458 | cs = compspec_copy (cs); |
1459 | ||
3185942a JA |
1460 | oldcs = pcomp_curcs; |
1461 | oldcmd = pcomp_curcmd; | |
1462 | ||
1463 | pcomp_curcs = cs; | |
1464 | pcomp_curcmd = cmd; | |
1465 | ||
0001803f | 1466 | ret = gen_compspec_completions (cs, cmd, word, start, end, foundp); |
bb70624e | 1467 | |
3185942a JA |
1468 | pcomp_curcs = oldcs; |
1469 | pcomp_curcmd = oldcmd; | |
1470 | ||
0001803f CR |
1471 | /* We need to conditionally handle setting *retryp here */ |
1472 | if (retryp) | |
1473 | *retryp = foundp && (*foundp & PCOMP_RETRYFAIL); | |
1474 | ||
1475 | if (foundp) | |
1476 | { | |
1477 | *foundp &= ~PCOMP_RETRYFAIL; | |
1478 | *foundp |= cs->options; | |
1479 | } | |
1480 | ||
b80f6443 | 1481 | compspec_dispose (cs); |
0001803f CR |
1482 | return ret; |
1483 | } | |
1484 | ||
1485 | /* The driver function for the programmable completion code. Returns a list | |
1486 | of matches for WORD, which is an argument to command CMD. START and END | |
1487 | bound the command currently being completed in rl_line_buffer. */ | |
1488 | char ** | |
1489 | programmable_completions (cmd, word, start, end, foundp) | |
1490 | const char *cmd; | |
1491 | const char *word; | |
1492 | int start, end, *foundp; | |
1493 | { | |
1494 | COMPSPEC *cs, *lastcs; | |
1495 | STRINGLIST *ret; | |
1496 | char **rmatches, *t; | |
1497 | int found, retry, count; | |
1498 | ||
1499 | lastcs = 0; | |
1500 | found = count = 0; | |
1501 | ||
1502 | do | |
1503 | { | |
1504 | retry = 0; | |
1505 | ||
1506 | /* We look at the basename of CMD if the full command does not have | |
1507 | an associated COMPSPEC. */ | |
1508 | ret = gen_progcomp_completions (cmd, cmd, word, start, end, &found, &retry, &lastcs); | |
1509 | if (found == 0) | |
1510 | { | |
1511 | t = strrchr (cmd, '/'); | |
1512 | if (t && *(++t)) | |
1513 | ret = gen_progcomp_completions (t, cmd, word, start, end, &found, &retry, &lastcs); | |
1514 | } | |
1515 | ||
1516 | if (found == 0) | |
1517 | ret = gen_progcomp_completions (DEFAULTCMD, cmd, word, start, end, &found, &retry, &lastcs); | |
1518 | ||
1519 | count++; | |
1520 | ||
1521 | if (count > 32) | |
1522 | { | |
1523 | internal_warning ("programmable_completion: %s: possible retry loop", cmd); | |
1524 | break; | |
1525 | } | |
1526 | } | |
1527 | while (retry); | |
b80f6443 | 1528 | |
bb70624e JA |
1529 | if (ret) |
1530 | { | |
1531 | rmatches = ret->list; | |
1532 | free (ret); | |
1533 | } | |
1534 | else | |
1535 | rmatches = (char **)NULL; | |
1536 | ||
0001803f CR |
1537 | if (foundp) |
1538 | *foundp = found; | |
1539 | ||
1540 | if (lastcs) /* XXX - should be while? */ | |
1541 | compspec_dispose (lastcs); | |
1542 | ||
bb70624e JA |
1543 | return (rmatches); |
1544 | } | |
1545 | ||
1546 | #endif /* PROGRAMMABLE_COMPLETION */ |