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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 | |
ac50fbac | 3 | /* Copyright (C) 1999-2012 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 | ||
ac50fbac CR |
40 | #include <sys/time.h> |
41 | ||
bb70624e JA |
42 | #include <stdio.h> |
43 | #include "bashansi.h" | |
b80f6443 | 44 | #include "bashintl.h" |
bb70624e JA |
45 | |
46 | #include "shell.h" | |
47 | #include "pcomplete.h" | |
48 | #include "alias.h" | |
49 | #include "bashline.h" | |
f73dda09 | 50 | #include "execute_cmd.h" |
bb70624e JA |
51 | #include "pathexp.h" |
52 | ||
53 | #if defined (JOB_CONTROL) | |
54 | # include "jobs.h" | |
55 | #endif | |
56 | ||
57 | #if !defined (NSIG) | |
58 | # include "trap.h" | |
59 | #endif | |
60 | ||
ac50fbac CR |
61 | #include "shmbutil.h" |
62 | ||
bb70624e JA |
63 | #include "builtins.h" |
64 | #include "builtins/common.h" | |
ac50fbac | 65 | #include "builtins/builtext.h" |
bb70624e JA |
66 | |
67 | #include <glob/glob.h> | |
f73dda09 | 68 | #include <glob/strmatch.h> |
bb70624e JA |
69 | |
70 | #include <readline/rlconf.h> | |
71 | #include <readline/readline.h> | |
72 | #include <readline/history.h> | |
73 | ||
0001803f CR |
74 | #define PCOMP_RETRYFAIL 256 |
75 | ||
bb70624e JA |
76 | #ifdef STRDUP |
77 | # undef STRDUP | |
78 | #endif | |
79 | #define STRDUP(x) ((x) ? savestring (x) : (char *)NULL) | |
80 | ||
81 | typedef SHELL_VAR **SVFUNC (); | |
82 | ||
83 | #ifndef HAVE_STRPBRK | |
84 | extern char *strpbrk __P((char *, char *)); | |
85 | #endif | |
86 | ||
bb70624e JA |
87 | extern int array_needs_making; |
88 | extern STRING_INT_ALIST word_token_alist[]; | |
89 | extern char *signal_names[]; | |
ac50fbac | 90 | extern sh_builtin_func_t *last_shell_builtin, *this_shell_builtin; |
bb70624e | 91 | |
7117c2d2 JA |
92 | #if defined (DEBUG) |
93 | #if defined (PREFER_STDARG) | |
f73dda09 JA |
94 | static void debug_printf (const char *, ...) __attribute__((__format__ (printf, 1, 2))); |
95 | #endif | |
7117c2d2 | 96 | #endif /* DEBUG */ |
f73dda09 JA |
97 | |
98 | static int it_init_joblist __P((ITEMLIST *, int)); | |
99 | ||
100 | static int it_init_aliases __P((ITEMLIST *)); | |
101 | static int it_init_arrayvars __P((ITEMLIST *)); | |
102 | static int it_init_bindings __P((ITEMLIST *)); | |
103 | static int it_init_builtins __P((ITEMLIST *)); | |
104 | static int it_init_disabled __P((ITEMLIST *)); | |
105 | static int it_init_enabled __P((ITEMLIST *)); | |
106 | static int it_init_exported __P((ITEMLIST *)); | |
107 | static int it_init_functions __P((ITEMLIST *)); | |
ac50fbac | 108 | static int it_init_helptopics __P((ITEMLIST *)); |
f73dda09 JA |
109 | static int it_init_hostnames __P((ITEMLIST *)); |
110 | static int it_init_jobs __P((ITEMLIST *)); | |
111 | static int it_init_running __P((ITEMLIST *)); | |
112 | static int it_init_stopped __P((ITEMLIST *)); | |
113 | static int it_init_keywords __P((ITEMLIST *)); | |
114 | static int it_init_signals __P((ITEMLIST *)); | |
115 | static int it_init_variables __P((ITEMLIST *)); | |
116 | static int it_init_setopts __P((ITEMLIST *)); | |
117 | static int it_init_shopts __P((ITEMLIST *)); | |
118 | ||
119 | static int shouldexp_filterpat __P((char *)); | |
120 | static char *preproc_filterpat __P((char *, char *)); | |
121 | ||
122 | static void init_itemlist_from_varlist __P((ITEMLIST *, SVFUNC *)); | |
123 | ||
124 | static STRINGLIST *gen_matches_from_itemlist __P((ITEMLIST *, const char *)); | |
125 | static STRINGLIST *gen_action_completions __P((COMPSPEC *, const char *)); | |
126 | static STRINGLIST *gen_globpat_matches __P((COMPSPEC *, const char *)); | |
127 | static STRINGLIST *gen_wordlist_matches __P((COMPSPEC *, const char *)); | |
128 | static STRINGLIST *gen_shell_function_matches __P((COMPSPEC *, const char *, | |
ac50fbac | 129 | const char *, |
f73dda09 | 130 | char *, int, WORD_LIST *, |
0001803f | 131 | int, int, int *)); |
ac50fbac CR |
132 | static STRINGLIST *gen_command_matches __P((COMPSPEC *, const char *, |
133 | const char *, | |
134 | char *, int, WORD_LIST *, | |
135 | int, int)); | |
f73dda09 | 136 | |
0001803f CR |
137 | static STRINGLIST *gen_progcomp_completions __P((const char *, const char *, |
138 | const char *, | |
139 | int, int, int *, int *, | |
140 | COMPSPEC **)); | |
141 | ||
f73dda09 JA |
142 | static char *pcomp_filename_completion_function __P((const char *, int)); |
143 | ||
144 | #if defined (ARRAY_VARS) | |
145 | static SHELL_VAR *bind_comp_words __P((WORD_LIST *)); | |
146 | #endif | |
147 | static void bind_compfunc_variables __P((char *, int, WORD_LIST *, int, int)); | |
148 | static void unbind_compfunc_variables __P((int)); | |
ac50fbac | 149 | static WORD_LIST *build_arg_list __P((char *, const char *, const char *, WORD_LIST *, int)); |
f73dda09 | 150 | static WORD_LIST *command_line_to_word_list __P((char *, int, int, int *, int *)); |
bb70624e | 151 | |
7117c2d2 | 152 | #ifdef DEBUG |
bb70624e | 153 | static int progcomp_debug = 0; |
7117c2d2 | 154 | #endif |
bb70624e JA |
155 | |
156 | int prog_completion_enabled = 1; | |
157 | ||
158 | /* These are used to manage the arrays of strings for possible completions. */ | |
159 | ITEMLIST it_aliases = { 0, it_init_aliases, (STRINGLIST *)0 }; | |
160 | ITEMLIST it_arrayvars = { LIST_DYNAMIC, it_init_arrayvars, (STRINGLIST *)0 }; | |
161 | ITEMLIST it_bindings = { 0, it_init_bindings, (STRINGLIST *)0 }; | |
162 | ITEMLIST it_builtins = { 0, it_init_builtins, (STRINGLIST *)0 }; | |
163 | ITEMLIST it_commands = { LIST_DYNAMIC }; /* unused */ | |
164 | ITEMLIST it_directories = { LIST_DYNAMIC }; /* unused */ | |
165 | ITEMLIST it_disabled = { 0, it_init_disabled, (STRINGLIST *)0 }; | |
166 | ITEMLIST it_enabled = { 0, it_init_enabled, (STRINGLIST *)0 }; | |
167 | ITEMLIST it_exports = { LIST_DYNAMIC, it_init_exported, (STRINGLIST *)0 }; | |
7117c2d2 | 168 | ITEMLIST it_files = { LIST_DYNAMIC }; /* unused */ |
bb70624e | 169 | ITEMLIST it_functions = { 0, it_init_functions, (STRINGLIST *)0 }; |
ac50fbac | 170 | ITEMLIST it_helptopics = { 0, it_init_helptopics, (STRINGLIST *)0 }; |
bb70624e | 171 | ITEMLIST it_hostnames = { LIST_DYNAMIC, it_init_hostnames, (STRINGLIST *)0 }; |
7117c2d2 | 172 | ITEMLIST it_groups = { LIST_DYNAMIC }; /* unused */ |
f73dda09 | 173 | ITEMLIST it_jobs = { LIST_DYNAMIC, it_init_jobs, (STRINGLIST *)0 }; |
bb70624e JA |
174 | ITEMLIST it_keywords = { 0, it_init_keywords, (STRINGLIST *)0 }; |
175 | ITEMLIST it_running = { LIST_DYNAMIC, it_init_running, (STRINGLIST *)0 }; | |
7117c2d2 | 176 | ITEMLIST it_services = { LIST_DYNAMIC }; /* unused */ |
bb70624e JA |
177 | ITEMLIST it_setopts = { 0, it_init_setopts, (STRINGLIST *)0 }; |
178 | ITEMLIST it_shopts = { 0, it_init_shopts, (STRINGLIST *)0 }; | |
179 | ITEMLIST it_signals = { 0, it_init_signals, (STRINGLIST *)0 }; | |
180 | ITEMLIST it_stopped = { LIST_DYNAMIC, it_init_stopped, (STRINGLIST *)0 }; | |
7117c2d2 | 181 | ITEMLIST it_users = { LIST_DYNAMIC }; /* unused */ |
bb70624e JA |
182 | ITEMLIST it_variables = { LIST_DYNAMIC, it_init_variables, (STRINGLIST *)0 }; |
183 | ||
3185942a JA |
184 | COMPSPEC *pcomp_curcs; |
185 | const char *pcomp_curcmd; | |
2b76266c | 186 | const char *pcomp_curtxt; |
3185942a | 187 | |
7117c2d2 | 188 | #ifdef DEBUG |
bb70624e | 189 | /* Debugging code */ |
bb70624e JA |
190 | static void |
191 | #if defined (PREFER_STDARG) | |
192 | debug_printf (const char *format, ...) | |
193 | #else | |
194 | debug_printf (format, va_alist) | |
195 | const char *format; | |
196 | va_dcl | |
197 | #endif | |
198 | { | |
199 | va_list args; | |
200 | ||
201 | if (progcomp_debug == 0) | |
202 | return; | |
203 | ||
7117c2d2 | 204 | SH_VA_START (args, format); |
bb70624e JA |
205 | |
206 | fprintf (stdout, "DEBUG: "); | |
207 | vfprintf (stdout, format, args); | |
208 | fprintf (stdout, "\n"); | |
209 | ||
210 | rl_on_new_line (); | |
211 | ||
212 | va_end (args); | |
213 | } | |
7117c2d2 | 214 | #endif |
bb70624e JA |
215 | |
216 | /* Functions to manage the item lists */ | |
217 | ||
218 | void | |
219 | set_itemlist_dirty (it) | |
220 | ITEMLIST *it; | |
221 | { | |
222 | it->flags |= LIST_DIRTY; | |
223 | } | |
224 | ||
225 | void | |
226 | initialize_itemlist (itp) | |
227 | ITEMLIST *itp; | |
228 | { | |
229 | (*itp->list_getter) (itp); | |
230 | itp->flags |= LIST_INITIALIZED; | |
231 | itp->flags &= ~LIST_DIRTY; | |
232 | } | |
233 | ||
234 | void | |
235 | clean_itemlist (itp) | |
236 | ITEMLIST *itp; | |
237 | { | |
238 | STRINGLIST *sl; | |
239 | ||
240 | sl = itp->slist; | |
241 | if (sl) | |
242 | { | |
243 | if ((itp->flags & (LIST_DONTFREEMEMBERS|LIST_DONTFREE)) == 0) | |
7117c2d2 | 244 | strvec_flush (sl->list); |
bb70624e JA |
245 | if ((itp->flags & LIST_DONTFREE) == 0) |
246 | free (sl->list); | |
247 | free (sl); | |
248 | } | |
249 | itp->slist = (STRINGLIST *)NULL; | |
250 | itp->flags &= ~(LIST_DONTFREE|LIST_DONTFREEMEMBERS|LIST_INITIALIZED|LIST_DIRTY); | |
251 | } | |
252 | ||
bb70624e JA |
253 | |
254 | static int | |
255 | shouldexp_filterpat (s) | |
256 | char *s; | |
257 | { | |
258 | register char *p; | |
259 | ||
260 | for (p = s; p && *p; p++) | |
261 | { | |
262 | if (*p == '\\') | |
263 | p++; | |
264 | else if (*p == '&') | |
265 | return 1; | |
266 | } | |
267 | return 0; | |
268 | } | |
269 | ||
270 | /* Replace any instance of `&' in PAT with TEXT. Backslash may be used to | |
271 | quote a `&' and inhibit substitution. Returns a new string. This just | |
272 | calls stringlib.c:strcreplace(). */ | |
273 | static char * | |
274 | preproc_filterpat (pat, text) | |
275 | char *pat; | |
276 | char *text; | |
277 | { | |
278 | char *ret; | |
279 | ||
280 | ret = strcreplace (pat, '&', text, 1); | |
281 | return ret; | |
282 | } | |
283 | ||
284 | /* Remove any match of FILTERPAT from SL. A `&' in FILTERPAT is replaced by | |
285 | TEXT. A leading `!' in FILTERPAT negates the pattern; in this case | |
286 | any member of SL->list that does *not* match will be removed. This returns | |
287 | a new STRINGLIST with the matching members of SL *copied*. Any | |
288 | non-matching members of SL->list are *freed*. */ | |
289 | STRINGLIST * | |
290 | filter_stringlist (sl, filterpat, text) | |
291 | STRINGLIST *sl; | |
292 | char *filterpat, *text; | |
293 | { | |
294 | int i, m, not; | |
295 | STRINGLIST *ret; | |
296 | char *npat, *t; | |
297 | ||
298 | if (sl == 0 || sl->list == 0 || sl->list_len == 0) | |
299 | return sl; | |
300 | ||
301 | npat = shouldexp_filterpat (filterpat) ? preproc_filterpat (filterpat, text) : filterpat; | |
302 | ||
303 | not = (npat[0] == '!'); | |
304 | t = not ? npat + 1 : npat; | |
305 | ||
7117c2d2 | 306 | ret = strlist_create (sl->list_size); |
bb70624e JA |
307 | for (i = 0; i < sl->list_len; i++) |
308 | { | |
f73dda09 | 309 | m = strmatch (t, sl->list[i], FNMATCH_EXTFLAG); |
bb70624e JA |
310 | if ((not && m == FNM_NOMATCH) || (not == 0 && m != FNM_NOMATCH)) |
311 | free (sl->list[i]); | |
312 | else | |
313 | ret->list[ret->list_len++] = sl->list[i]; | |
314 | } | |
315 | ||
316 | ret->list[ret->list_len] = (char *)NULL; | |
317 | if (npat != filterpat) | |
318 | free (npat); | |
319 | ||
320 | return ret; | |
321 | } | |
322 | ||
28ef6c31 JA |
323 | /* Turn an array of strings returned by rl_completion_matches into a STRINGLIST. |
324 | This understands how rl_completion_matches sets matches[0] (the lcd of the | |
bb70624e JA |
325 | strings in the list, unless it's the only match). */ |
326 | STRINGLIST * | |
327 | completions_to_stringlist (matches) | |
328 | char **matches; | |
329 | { | |
330 | STRINGLIST *sl; | |
331 | int mlen, i, n; | |
332 | ||
7117c2d2 JA |
333 | mlen = (matches == 0) ? 0 : strvec_len (matches); |
334 | sl = strlist_create (mlen + 1); | |
bb70624e JA |
335 | |
336 | if (matches == 0 || matches[0] == 0) | |
337 | return sl; | |
338 | ||
339 | if (matches[1] == 0) | |
340 | { | |
341 | sl->list[0] = STRDUP (matches[0]); | |
342 | sl->list[sl->list_len = 1] = (char *)NULL; | |
343 | return sl; | |
344 | } | |
345 | ||
346 | for (i = 1, n = 0; i < mlen; i++, n++) | |
347 | sl->list[n] = STRDUP (matches[i]); | |
348 | sl->list_len = n; | |
349 | sl->list[n] = (char *)NULL; | |
350 | ||
351 | return sl; | |
352 | } | |
353 | ||
354 | /* Functions to manage the various ITEMLISTs that we populate internally. | |
355 | The caller is responsible for setting ITP->flags correctly. */ | |
356 | ||
357 | static int | |
358 | it_init_aliases (itp) | |
359 | ITEMLIST *itp; | |
360 | { | |
361 | #ifdef ALIAS | |
f73dda09 | 362 | alias_t **alias_list; |
bb70624e JA |
363 | register int i, n; |
364 | STRINGLIST *sl; | |
365 | ||
f73dda09 JA |
366 | alias_list = all_aliases (); |
367 | if (alias_list == 0) | |
bb70624e JA |
368 | { |
369 | itp->slist = (STRINGLIST *)NULL; | |
370 | return 0; | |
371 | } | |
f73dda09 | 372 | for (n = 0; alias_list[n]; n++) |
bb70624e | 373 | ; |
7117c2d2 | 374 | sl = strlist_create (n+1); |
bb70624e | 375 | for (i = 0; i < n; i++) |
f73dda09 | 376 | sl->list[i] = STRDUP (alias_list[i]->name); |
bb70624e JA |
377 | sl->list[n] = (char *)NULL; |
378 | sl->list_size = sl->list_len = n; | |
379 | itp->slist = sl; | |
380 | #else | |
381 | itp->slist = (STRINGLIST *)NULL; | |
382 | #endif | |
ac50fbac | 383 | free (alias_list); |
bb70624e JA |
384 | return 1; |
385 | } | |
386 | ||
387 | static void | |
388 | init_itemlist_from_varlist (itp, svfunc) | |
389 | ITEMLIST *itp; | |
390 | SVFUNC *svfunc; | |
391 | { | |
392 | SHELL_VAR **vlist; | |
393 | STRINGLIST *sl; | |
394 | register int i, n; | |
395 | ||
396 | vlist = (*svfunc) (); | |
b80f6443 JA |
397 | if (vlist == 0) |
398 | { | |
399 | itp->slist = (STRINGLIST *)NULL; | |
400 | return; | |
401 | } | |
bb70624e JA |
402 | for (n = 0; vlist[n]; n++) |
403 | ; | |
7117c2d2 | 404 | sl = strlist_create (n+1); |
bb70624e JA |
405 | for (i = 0; i < n; i++) |
406 | sl->list[i] = savestring (vlist[i]->name); | |
407 | sl->list[sl->list_len = n] = (char *)NULL; | |
408 | itp->slist = sl; | |
409 | } | |
410 | ||
411 | static int | |
412 | it_init_arrayvars (itp) | |
413 | ITEMLIST *itp; | |
414 | { | |
415 | #if defined (ARRAY_VARS) | |
416 | init_itemlist_from_varlist (itp, all_array_variables); | |
417 | return 1; | |
418 | #else | |
419 | return 0; | |
420 | #endif | |
421 | } | |
422 | ||
423 | static int | |
424 | it_init_bindings (itp) | |
425 | ITEMLIST *itp; | |
426 | { | |
427 | char **blist; | |
428 | STRINGLIST *sl; | |
429 | ||
430 | /* rl_funmap_names allocates blist, but not its members */ | |
f73dda09 | 431 | blist = (char **)rl_funmap_names (); /* XXX fix const later */ |
7117c2d2 | 432 | sl = strlist_create (0); |
bb70624e JA |
433 | sl->list = blist; |
434 | sl->list_size = 0; | |
7117c2d2 | 435 | sl->list_len = strvec_len (sl->list); |
bb70624e JA |
436 | itp->flags |= LIST_DONTFREEMEMBERS; |
437 | itp->slist = sl; | |
438 | ||
439 | return 0; | |
440 | } | |
441 | ||
442 | static int | |
443 | it_init_builtins (itp) | |
444 | ITEMLIST *itp; | |
445 | { | |
446 | STRINGLIST *sl; | |
bb70624e JA |
447 | register int i, n; |
448 | ||
7117c2d2 | 449 | sl = strlist_create (num_shell_builtins); |
bb70624e JA |
450 | for (i = n = 0; i < num_shell_builtins; i++) |
451 | if (shell_builtins[i].function) | |
452 | sl->list[n++] = shell_builtins[i].name; | |
453 | sl->list[sl->list_len = n] = (char *)NULL; | |
454 | itp->flags |= LIST_DONTFREEMEMBERS; | |
455 | itp->slist = sl; | |
456 | return 0; | |
457 | } | |
458 | ||
459 | static int | |
460 | it_init_enabled (itp) | |
461 | ITEMLIST *itp; | |
462 | { | |
463 | STRINGLIST *sl; | |
bb70624e JA |
464 | register int i, n; |
465 | ||
7117c2d2 | 466 | sl = strlist_create (num_shell_builtins); |
bb70624e JA |
467 | for (i = n = 0; i < num_shell_builtins; i++) |
468 | { | |
469 | if (shell_builtins[i].function && (shell_builtins[i].flags & BUILTIN_ENABLED)) | |
470 | sl->list[n++] = shell_builtins[i].name; | |
471 | } | |
472 | sl->list[sl->list_len = n] = (char *)NULL; | |
473 | itp->flags |= LIST_DONTFREEMEMBERS; | |
474 | itp->slist = sl; | |
475 | return 0; | |
476 | } | |
477 | ||
478 | static int | |
479 | it_init_disabled (itp) | |
480 | ITEMLIST *itp; | |
481 | { | |
482 | STRINGLIST *sl; | |
bb70624e JA |
483 | register int i, n; |
484 | ||
7117c2d2 | 485 | sl = strlist_create (num_shell_builtins); |
bb70624e JA |
486 | for (i = n = 0; i < num_shell_builtins; i++) |
487 | { | |
488 | if (shell_builtins[i].function && ((shell_builtins[i].flags & BUILTIN_ENABLED) == 0)) | |
489 | sl->list[n++] = shell_builtins[i].name; | |
490 | } | |
491 | sl->list[sl->list_len = n] = (char *)NULL; | |
492 | itp->flags |= LIST_DONTFREEMEMBERS; | |
493 | itp->slist = sl; | |
494 | return 0; | |
495 | } | |
496 | ||
497 | static int | |
498 | it_init_exported (itp) | |
499 | ITEMLIST *itp; | |
500 | { | |
501 | init_itemlist_from_varlist (itp, all_exported_variables); | |
502 | return 0; | |
503 | } | |
504 | ||
505 | static int | |
506 | it_init_functions (itp) | |
507 | ITEMLIST *itp; | |
508 | { | |
509 | init_itemlist_from_varlist (itp, all_visible_functions); | |
510 | return 0; | |
511 | } | |
512 | ||
ac50fbac CR |
513 | /* Like it_init_builtins, but includes everything the help builtin looks at, |
514 | not just builtins with an active implementing function. */ | |
515 | static int | |
516 | it_init_helptopics (itp) | |
517 | ITEMLIST *itp; | |
518 | { | |
519 | STRINGLIST *sl; | |
520 | register int i, n; | |
521 | ||
522 | sl = strlist_create (num_shell_builtins); | |
523 | for (i = n = 0; i < num_shell_builtins; i++) | |
524 | sl->list[n++] = shell_builtins[i].name; | |
525 | sl->list[sl->list_len = n] = (char *)NULL; | |
526 | itp->flags |= LIST_DONTFREEMEMBERS; | |
527 | itp->slist = sl; | |
528 | return 0; | |
529 | } | |
530 | ||
bb70624e JA |
531 | static int |
532 | it_init_hostnames (itp) | |
533 | ITEMLIST *itp; | |
534 | { | |
535 | STRINGLIST *sl; | |
536 | ||
7117c2d2 | 537 | sl = strlist_create (0); |
bb70624e | 538 | sl->list = get_hostname_list (); |
7117c2d2 | 539 | sl->list_len = sl->list ? strvec_len (sl->list) : 0; |
bb70624e JA |
540 | sl->list_size = sl->list_len; |
541 | itp->slist = sl; | |
542 | itp->flags |= LIST_DONTFREEMEMBERS|LIST_DONTFREE; | |
543 | return 0; | |
544 | } | |
545 | ||
546 | static int | |
547 | it_init_joblist (itp, jstate) | |
548 | ITEMLIST *itp; | |
549 | int jstate; | |
550 | { | |
551 | #if defined (JOB_CONTROL) | |
552 | STRINGLIST *sl; | |
f73dda09 | 553 | register int i; |
bb70624e JA |
554 | register PROCESS *p; |
555 | char *s, *t; | |
95732b49 JA |
556 | JOB *j; |
557 | JOB_STATE ws; /* wanted state */ | |
bb70624e | 558 | |
3185942a | 559 | ws = JNONE; |
bb70624e | 560 | if (jstate == 0) |
95732b49 | 561 | ws = JRUNNING; |
bb70624e | 562 | else if (jstate == 1) |
95732b49 | 563 | ws = JSTOPPED; |
bb70624e | 564 | |
95732b49 JA |
565 | sl = strlist_create (js.j_jobslots); |
566 | for (i = js.j_jobslots - 1; i >= 0; i--) | |
bb70624e | 567 | { |
95732b49 JA |
568 | j = get_job_by_jid (i); |
569 | if (j == 0) | |
bb70624e | 570 | continue; |
95732b49 JA |
571 | p = j->pipe; |
572 | if (jstate == -1 || JOBSTATE(i) == ws) | |
bb70624e JA |
573 | { |
574 | s = savestring (p->command); | |
575 | t = strpbrk (s, " \t\n"); | |
576 | if (t) | |
577 | *t = '\0'; | |
28ef6c31 | 578 | sl->list[sl->list_len++] = s; |
bb70624e JA |
579 | } |
580 | } | |
581 | itp->slist = sl; | |
582 | #else | |
583 | itp->slist = (STRINGLIST *)NULL; | |
584 | #endif | |
585 | return 0; | |
586 | } | |
587 | ||
588 | static int | |
589 | it_init_jobs (itp) | |
590 | ITEMLIST *itp; | |
591 | { | |
592 | return (it_init_joblist (itp, -1)); | |
593 | } | |
594 | ||
595 | static int | |
596 | it_init_running (itp) | |
597 | ITEMLIST *itp; | |
598 | { | |
599 | return (it_init_joblist (itp, 0)); | |
600 | } | |
601 | ||
602 | static int | |
603 | it_init_stopped (itp) | |
604 | ITEMLIST *itp; | |
605 | { | |
606 | return (it_init_joblist (itp, 1)); | |
607 | } | |
608 | ||
609 | static int | |
610 | it_init_keywords (itp) | |
611 | ITEMLIST *itp; | |
612 | { | |
613 | STRINGLIST *sl; | |
614 | register int i, n; | |
615 | ||
616 | for (n = 0; word_token_alist[n].word; n++) | |
617 | ; | |
7117c2d2 | 618 | sl = strlist_create (n); |
bb70624e JA |
619 | for (i = 0; i < n; i++) |
620 | sl->list[i] = word_token_alist[i].word; | |
621 | sl->list[sl->list_len = i] = (char *)NULL; | |
622 | itp->flags |= LIST_DONTFREEMEMBERS; | |
623 | itp->slist = sl; | |
624 | return 0; | |
625 | } | |
626 | ||
627 | static int | |
628 | it_init_signals (itp) | |
629 | ITEMLIST *itp; | |
630 | { | |
631 | STRINGLIST *sl; | |
632 | ||
7117c2d2 | 633 | sl = strlist_create (0); |
bb70624e | 634 | sl->list = signal_names; |
7117c2d2 | 635 | sl->list_len = strvec_len (sl->list); |
bb70624e JA |
636 | itp->flags |= LIST_DONTFREE; |
637 | itp->slist = sl; | |
638 | return 0; | |
639 | } | |
640 | ||
641 | static int | |
642 | it_init_variables (itp) | |
643 | ITEMLIST *itp; | |
644 | { | |
645 | init_itemlist_from_varlist (itp, all_visible_variables); | |
646 | return 0; | |
647 | } | |
648 | ||
649 | static int | |
650 | it_init_setopts (itp) | |
651 | ITEMLIST *itp; | |
652 | { | |
653 | STRINGLIST *sl; | |
654 | ||
7117c2d2 | 655 | sl = strlist_create (0); |
bb70624e | 656 | sl->list = get_minus_o_opts (); |
7117c2d2 | 657 | sl->list_len = strvec_len (sl->list); |
bb70624e JA |
658 | itp->slist = sl; |
659 | itp->flags |= LIST_DONTFREEMEMBERS; | |
660 | return 0; | |
661 | } | |
662 | ||
663 | static int | |
664 | it_init_shopts (itp) | |
665 | ITEMLIST *itp; | |
666 | { | |
667 | STRINGLIST *sl; | |
668 | ||
7117c2d2 | 669 | sl = strlist_create (0); |
bb70624e | 670 | sl->list = get_shopt_options (); |
7117c2d2 | 671 | sl->list_len = strvec_len (sl->list); |
bb70624e JA |
672 | itp->slist = sl; |
673 | itp->flags |= LIST_DONTFREEMEMBERS; | |
674 | return 0; | |
675 | } | |
676 | ||
677 | /* Generate a list of all matches for TEXT using the STRINGLIST in itp->slist | |
678 | as the list of possibilities. If the itemlist has been marked dirty or | |
679 | it should be regenerated every time, destroy the old STRINGLIST and make a | |
b80f6443 JA |
680 | new one before trying the match. TEXT is dequoted before attempting a |
681 | match. */ | |
bb70624e JA |
682 | static STRINGLIST * |
683 | gen_matches_from_itemlist (itp, text) | |
684 | ITEMLIST *itp; | |
28ef6c31 | 685 | const char *text; |
bb70624e JA |
686 | { |
687 | STRINGLIST *ret, *sl; | |
688 | int tlen, i, n; | |
b80f6443 | 689 | char *ntxt; |
bb70624e JA |
690 | |
691 | if ((itp->flags & (LIST_DIRTY|LIST_DYNAMIC)) || | |
692 | (itp->flags & LIST_INITIALIZED) == 0) | |
693 | { | |
0001803f | 694 | if (itp->flags & (LIST_DIRTY|LIST_DYNAMIC)) |
bb70624e JA |
695 | clean_itemlist (itp); |
696 | if ((itp->flags & LIST_INITIALIZED) == 0) | |
697 | initialize_itemlist (itp); | |
698 | } | |
f73dda09 JA |
699 | if (itp->slist == 0) |
700 | return ((STRINGLIST *)NULL); | |
7117c2d2 | 701 | ret = strlist_create (itp->slist->list_len+1); |
bb70624e | 702 | sl = itp->slist; |
b80f6443 JA |
703 | |
704 | ntxt = bash_dequote_text (text); | |
705 | tlen = STRLEN (ntxt); | |
706 | ||
bb70624e JA |
707 | for (i = n = 0; i < sl->list_len; i++) |
708 | { | |
b80f6443 | 709 | if (tlen == 0 || STREQN (sl->list[i], ntxt, tlen)) |
bb70624e JA |
710 | ret->list[n++] = STRDUP (sl->list[i]); |
711 | } | |
712 | ret->list[ret->list_len = n] = (char *)NULL; | |
b80f6443 JA |
713 | |
714 | FREE (ntxt); | |
bb70624e JA |
715 | return ret; |
716 | } | |
717 | ||
28ef6c31 | 718 | /* A wrapper for rl_filename_completion_function that dequotes the filename |
bb70624e JA |
719 | before attempting completions. */ |
720 | static char * | |
721 | pcomp_filename_completion_function (text, state) | |
28ef6c31 | 722 | const char *text; |
bb70624e JA |
723 | int state; |
724 | { | |
725 | static char *dfn; /* dequoted filename */ | |
726 | int qc; | |
ac50fbac | 727 | int iscompgen, iscompleting; |
bb70624e JA |
728 | |
729 | if (state == 0) | |
730 | { | |
731 | FREE (dfn); | |
732 | /* remove backslashes quoting special characters in filenames. */ | |
ac50fbac CR |
733 | /* There are roughly three paths we can follow to get here: |
734 | 1. complete -f | |
735 | 2. compgen -f "$word" from a completion function | |
736 | 3. compgen -f "$word" from the command line | |
737 | They all need to be handled. | |
738 | ||
739 | In the first two cases, readline will run the filename dequoting | |
740 | function in rl_filename_completion_function if it found a filename | |
741 | quoting character in the word to be completed | |
742 | (rl_completion_found_quote). We run the dequoting function here | |
743 | if we're running compgen, we're not completing, and the | |
744 | rl_filename_completion_function won't dequote the filename | |
745 | (rl_completion_found_quote == 0). */ | |
746 | iscompgen = this_shell_builtin == compgen_builtin; | |
747 | iscompleting = RL_ISSTATE (RL_STATE_COMPLETING); | |
748 | if (iscompgen && iscompleting == 0 && rl_completion_found_quote == 0 | |
749 | && rl_filename_dequoting_function) | |
bb70624e | 750 | { |
b80f6443 JA |
751 | /* Use rl_completion_quote_character because any single or |
752 | double quotes have been removed by the time TEXT makes it | |
753 | here, and we don't want to remove backslashes inside | |
754 | quoted strings. */ | |
3185942a | 755 | dfn = (*rl_filename_dequoting_function) ((char *)text, rl_completion_quote_character); |
bb70624e | 756 | } |
2b76266c CR |
757 | /* Intended to solve a mismatched assumption by bash-completion. If |
758 | the text to be completed is empty, but bash-completion turns it into | |
759 | a quoted string ('') assuming that this code will dequote it before | |
760 | calling readline, do the dequoting. */ | |
761 | else if (iscompgen && iscompleting && | |
762 | pcomp_curtxt && *pcomp_curtxt == 0 && | |
763 | text && (*text == '\'' || *text == '"') && text[1] == text[0] && text[2] == 0 && | |
764 | rl_filename_dequoting_function) | |
765 | dfn = (*rl_filename_dequoting_function) ((char *)text, rl_completion_quote_character); | |
766 | /* Another mismatched assumption by bash-completion. If compgen is being | |
767 | run as part of bash-completion, and the argument to compgen is not | |
768 | the same as the word originally passed to the programmable completion | |
769 | code, dequote the argument if it has quote characters. It's an | |
770 | attempt to detect when bash-completion is quoting its filename | |
771 | argument before calling compgen. */ | |
772 | /* We could check whether gen_shell_function_matches is in the call | |
773 | stack by checking whether the gen-shell-function-matches tag is in | |
774 | the unwind-protect stack, but there's no function to do that yet. | |
775 | We could simply check whether we're executing in a function by | |
776 | checking variable_context, and may end up doing that. */ | |
777 | else if (iscompgen && iscompleting && rl_filename_dequoting_function && | |
778 | pcomp_curtxt && text && | |
779 | STREQ (pcomp_curtxt, text) == 0 && | |
780 | variable_context && | |
781 | sh_contains_quotes (text)) /* guess */ | |
782 | dfn = (*rl_filename_dequoting_function) ((char *)text, rl_completion_quote_character); | |
bb70624e JA |
783 | else |
784 | dfn = savestring (text); | |
785 | } | |
786 | ||
28ef6c31 | 787 | return (rl_filename_completion_function (dfn, state)); |
bb70624e JA |
788 | } |
789 | ||
790 | #define GEN_COMPS(bmap, flag, it, text, glist, tlist) \ | |
791 | do { \ | |
792 | if (bmap & flag) \ | |
793 | { \ | |
794 | tlist = gen_matches_from_itemlist (it, text); \ | |
f73dda09 JA |
795 | if (tlist) \ |
796 | { \ | |
7117c2d2 JA |
797 | glist = strlist_append (glist, tlist); \ |
798 | strlist_dispose (tlist); \ | |
f73dda09 | 799 | } \ |
bb70624e JA |
800 | } \ |
801 | } while (0) | |
802 | ||
803 | #define GEN_XCOMPS(bmap, flag, text, func, cmatches, glist, tlist) \ | |
804 | do { \ | |
805 | if (bmap & flag) \ | |
806 | { \ | |
28ef6c31 | 807 | cmatches = rl_completion_matches (text, func); \ |
bb70624e | 808 | tlist = completions_to_stringlist (cmatches); \ |
7117c2d2 JA |
809 | glist = strlist_append (glist, tlist); \ |
810 | strvec_dispose (cmatches); \ | |
811 | strlist_dispose (tlist); \ | |
bb70624e JA |
812 | } \ |
813 | } while (0) | |
814 | ||
815 | /* Functions to generate lists of matches from the actions member of CS. */ | |
816 | ||
817 | static STRINGLIST * | |
818 | gen_action_completions (cs, text) | |
819 | COMPSPEC *cs; | |
28ef6c31 | 820 | const char *text; |
bb70624e JA |
821 | { |
822 | STRINGLIST *ret, *tmatches; | |
28ef6c31 | 823 | char **cmatches; /* from rl_completion_matches ... */ |
bb70624e | 824 | unsigned long flags; |
ac50fbac | 825 | int t; |
bb70624e JA |
826 | |
827 | ret = tmatches = (STRINGLIST *)NULL; | |
828 | flags = cs->actions; | |
829 | ||
830 | GEN_COMPS (flags, CA_ALIAS, &it_aliases, text, ret, tmatches); | |
831 | GEN_COMPS (flags, CA_ARRAYVAR, &it_arrayvars, text, ret, tmatches); | |
832 | GEN_COMPS (flags, CA_BINDING, &it_bindings, text, ret, tmatches); | |
833 | GEN_COMPS (flags, CA_BUILTIN, &it_builtins, text, ret, tmatches); | |
834 | GEN_COMPS (flags, CA_DISABLED, &it_disabled, text, ret, tmatches); | |
835 | GEN_COMPS (flags, CA_ENABLED, &it_enabled, text, ret, tmatches); | |
836 | GEN_COMPS (flags, CA_EXPORT, &it_exports, text, ret, tmatches); | |
837 | GEN_COMPS (flags, CA_FUNCTION, &it_functions, text, ret, tmatches); | |
ac50fbac | 838 | GEN_COMPS (flags, CA_HELPTOPIC, &it_helptopics, text, ret, tmatches); |
bb70624e JA |
839 | GEN_COMPS (flags, CA_HOSTNAME, &it_hostnames, text, ret, tmatches); |
840 | GEN_COMPS (flags, CA_JOB, &it_jobs, text, ret, tmatches); | |
841 | GEN_COMPS (flags, CA_KEYWORD, &it_keywords, text, ret, tmatches); | |
842 | GEN_COMPS (flags, CA_RUNNING, &it_running, text, ret, tmatches); | |
843 | GEN_COMPS (flags, CA_SETOPT, &it_setopts, text, ret, tmatches); | |
844 | GEN_COMPS (flags, CA_SHOPT, &it_shopts, text, ret, tmatches); | |
845 | GEN_COMPS (flags, CA_SIGNAL, &it_signals, text, ret, tmatches); | |
846 | GEN_COMPS (flags, CA_STOPPED, &it_stopped, text, ret, tmatches); | |
847 | GEN_COMPS (flags, CA_VARIABLE, &it_variables, text, ret, tmatches); | |
848 | ||
849 | GEN_XCOMPS(flags, CA_COMMAND, text, command_word_completion_function, cmatches, ret, tmatches); | |
850 | GEN_XCOMPS(flags, CA_FILE, text, pcomp_filename_completion_function, cmatches, ret, tmatches); | |
28ef6c31 | 851 | GEN_XCOMPS(flags, CA_USER, text, rl_username_completion_function, cmatches, ret, tmatches); |
f73dda09 | 852 | GEN_XCOMPS(flags, CA_GROUP, text, bash_groupname_completion_function, cmatches, ret, tmatches); |
7117c2d2 | 853 | GEN_XCOMPS(flags, CA_SERVICE, text, bash_servicename_completion_function, cmatches, ret, tmatches); |
bb70624e JA |
854 | |
855 | /* And lastly, the special case for directories */ | |
856 | if (flags & CA_DIRECTORY) | |
857 | { | |
ac50fbac | 858 | t = rl_filename_completion_desired; |
7117c2d2 | 859 | rl_completion_mark_symlink_dirs = 1; /* override user preference */ |
bb70624e | 860 | cmatches = bash_directory_completion_matches (text); |
ac50fbac CR |
861 | /* If we did not want filename completion before this, and there are |
862 | no matches, turn off rl_filename_completion_desired so whatever | |
863 | matches we get are not treated as filenames (it gets turned on by | |
864 | rl_filename_completion_function unconditionally). */ | |
865 | if (t == 0 && cmatches == 0 && rl_filename_completion_desired == 1) | |
866 | rl_filename_completion_desired = 0; | |
bb70624e | 867 | tmatches = completions_to_stringlist (cmatches); |
7117c2d2 JA |
868 | ret = strlist_append (ret, tmatches); |
869 | strvec_dispose (cmatches); | |
870 | strlist_dispose (tmatches); | |
bb70624e JA |
871 | } |
872 | ||
873 | return ret; | |
874 | } | |
875 | ||
876 | /* Generate a list of matches for CS->globpat. Unresolved: should this use | |
877 | TEXT as a match prefix, or just go without? Currently, the code does not | |
878 | use TEXT, just globs CS->globpat and returns the results. If we do decide | |
879 | to use TEXT, we should call quote_string_for_globbing before the call to | |
880 | glob_filename. */ | |
881 | static STRINGLIST * | |
882 | gen_globpat_matches (cs, text) | |
883 | COMPSPEC *cs; | |
28ef6c31 | 884 | const char *text; |
bb70624e JA |
885 | { |
886 | STRINGLIST *sl; | |
bb70624e | 887 | |
7117c2d2 JA |
888 | sl = strlist_create (0); |
889 | sl->list = glob_filename (cs->globpat, 0); | |
bb70624e JA |
890 | if (GLOB_FAILED (sl->list)) |
891 | sl->list = (char **)NULL; | |
892 | if (sl->list) | |
7117c2d2 | 893 | sl->list_len = sl->list_size = strvec_len (sl->list); |
bb70624e JA |
894 | return sl; |
895 | } | |
896 | ||
897 | /* Perform the shell word expansions on CS->words and return the results. | |
898 | Again, this ignores TEXT. */ | |
899 | static STRINGLIST * | |
900 | gen_wordlist_matches (cs, text) | |
901 | COMPSPEC *cs; | |
28ef6c31 | 902 | const char *text; |
bb70624e JA |
903 | { |
904 | WORD_LIST *l, *l2; | |
905 | STRINGLIST *sl; | |
0628567a | 906 | int nw, tlen; |
b80f6443 | 907 | char *ntxt; /* dequoted TEXT to use in comparisons */ |
bb70624e JA |
908 | |
909 | if (cs->words == 0 || cs->words[0] == '\0') | |
910 | return ((STRINGLIST *)NULL); | |
911 | ||
912 | /* This used to be a simple expand_string(cs->words, 0), but that won't | |
913 | do -- there's no way to split a simple list into individual words | |
914 | that way, since the shell semantics say that word splitting is done | |
ac50fbac CR |
915 | only on the results of expansion. split_at_delims also handles embedded |
916 | quoted strings and preserves the quotes for the expand_words_shellexp | |
917 | function call that follows. */ | |
918 | /* XXX - this is where this function spends most of its time */ | |
0001803f | 919 | l = split_at_delims (cs->words, strlen (cs->words), (char *)NULL, -1, 0, (int *)NULL, (int *)NULL); |
bb70624e JA |
920 | if (l == 0) |
921 | return ((STRINGLIST *)NULL); | |
922 | /* This will jump back to the top level if the expansion fails... */ | |
923 | l2 = expand_words_shellexp (l); | |
924 | dispose_words (l); | |
925 | ||
926 | nw = list_length (l2); | |
7117c2d2 | 927 | sl = strlist_create (nw + 1); |
b80f6443 JA |
928 | |
929 | ntxt = bash_dequote_text (text); | |
930 | tlen = STRLEN (ntxt); | |
bb70624e JA |
931 | |
932 | for (nw = 0, l = l2; l; l = l->next) | |
933 | { | |
b80f6443 | 934 | if (tlen == 0 || STREQN (l->word->word, ntxt, tlen)) |
28ef6c31 | 935 | sl->list[nw++] = STRDUP (l->word->word); |
bb70624e JA |
936 | } |
937 | sl->list[sl->list_len = nw] = (char *)NULL; | |
938 | ||
95732b49 | 939 | dispose_words (l2); |
b80f6443 | 940 | FREE (ntxt); |
bb70624e JA |
941 | return sl; |
942 | } | |
943 | ||
944 | #ifdef ARRAY_VARS | |
945 | ||
946 | static SHELL_VAR * | |
947 | bind_comp_words (lwords) | |
948 | WORD_LIST *lwords; | |
949 | { | |
950 | SHELL_VAR *v; | |
951 | ||
952 | v = find_variable ("COMP_WORDS"); | |
953 | if (v == 0) | |
954 | v = make_new_array_variable ("COMP_WORDS"); | |
955 | if (readonly_p (v)) | |
956 | VUNSETATTR (v, att_readonly); | |
957 | if (array_p (v) == 0) | |
958 | v = convert_var_to_array (v); | |
95732b49 | 959 | v = assign_array_var_from_word_list (v, lwords, 0); |
eb873671 JA |
960 | |
961 | VUNSETATTR (v, att_invisible); | |
bb70624e JA |
962 | return v; |
963 | } | |
964 | #endif /* ARRAY_VARS */ | |
965 | ||
966 | static void | |
967 | bind_compfunc_variables (line, ind, lwords, cw, exported) | |
968 | char *line; | |
969 | int ind; | |
970 | WORD_LIST *lwords; | |
971 | int cw, exported; | |
972 | { | |
f73dda09 | 973 | char ibuf[INT_STRLEN_BOUND(int) + 1]; |
bb70624e JA |
974 | char *value; |
975 | SHELL_VAR *v; | |
ac50fbac CR |
976 | size_t llen; |
977 | int c; | |
bb70624e JA |
978 | |
979 | /* Set the variables that the function expects while it executes. Maybe | |
980 | these should be in the function environment (temporary_env). */ | |
95732b49 | 981 | v = bind_variable ("COMP_LINE", line, 0); |
bb70624e JA |
982 | if (v && exported) |
983 | VSETATTR(v, att_exported); | |
984 | ||
ac50fbac CR |
985 | /* Post bash-4.2: COMP_POINT is characters instead of bytes. */ |
986 | c = line[ind]; | |
987 | line[ind] = '\0'; | |
988 | llen = MB_STRLEN (line); | |
989 | line[ind] = c; | |
990 | value = inttostr (llen, ibuf, sizeof(ibuf)); | |
bb70624e JA |
991 | v = bind_int_variable ("COMP_POINT", value); |
992 | if (v && exported) | |
993 | VSETATTR(v, att_exported); | |
994 | ||
3185942a JA |
995 | value = inttostr (rl_completion_type, ibuf, sizeof (ibuf)); |
996 | v = bind_int_variable ("COMP_TYPE", value); | |
997 | if (v && exported) | |
998 | VSETATTR(v, att_exported); | |
999 | ||
1000 | value = inttostr (rl_completion_invoking_key, ibuf, sizeof (ibuf)); | |
1001 | v = bind_int_variable ("COMP_KEY", value); | |
1002 | if (v && exported) | |
1003 | VSETATTR(v, att_exported); | |
1004 | ||
bb70624e JA |
1005 | /* Since array variables can't be exported, we don't bother making the |
1006 | array of words. */ | |
1007 | if (exported == 0) | |
1008 | { | |
1009 | #ifdef ARRAY_VARS | |
1010 | v = bind_comp_words (lwords); | |
f73dda09 | 1011 | value = inttostr (cw, ibuf, sizeof(ibuf)); |
bb70624e JA |
1012 | bind_int_variable ("COMP_CWORD", value); |
1013 | #endif | |
1014 | } | |
1015 | else | |
1016 | array_needs_making = 1; | |
1017 | } | |
1018 | ||
1019 | static void | |
1020 | unbind_compfunc_variables (exported) | |
1021 | int exported; | |
1022 | { | |
7117c2d2 JA |
1023 | unbind_variable ("COMP_LINE"); |
1024 | unbind_variable ("COMP_POINT"); | |
3185942a JA |
1025 | unbind_variable ("COMP_TYPE"); |
1026 | unbind_variable ("COMP_KEY"); | |
bb70624e | 1027 | #ifdef ARRAY_VARS |
7117c2d2 JA |
1028 | unbind_variable ("COMP_WORDS"); |
1029 | unbind_variable ("COMP_CWORD"); | |
bb70624e JA |
1030 | #endif |
1031 | if (exported) | |
1032 | array_needs_making = 1; | |
1033 | } | |
1034 | ||
1035 | /* Build the list of words to pass to a function or external command | |
1036 | as arguments. When the function or command is invoked, | |
1037 | ||
1038 | $0 == function or command being invoked | |
1039 | $1 == command name | |
17345e5a JA |
1040 | $2 == word to be completed (possibly null) |
1041 | $3 == previous word | |
bb70624e JA |
1042 | |
1043 | Functions can access all of the words in the current command line | |
17345e5a | 1044 | with the COMP_WORDS array. External commands cannot; they have to |
ac50fbac | 1045 | make do with the COMP_LINE and COMP_POINT variables. */ |
bb70624e JA |
1046 | |
1047 | static WORD_LIST * | |
ac50fbac | 1048 | build_arg_list (cmd, cname, text, lwords, ind) |
bb70624e | 1049 | char *cmd; |
ac50fbac | 1050 | const char *cname; |
f73dda09 | 1051 | const char *text; |
bb70624e JA |
1052 | WORD_LIST *lwords; |
1053 | int ind; | |
1054 | { | |
1055 | WORD_LIST *ret, *cl, *l; | |
1056 | WORD_DESC *w; | |
1057 | int i; | |
1058 | ||
1059 | ret = (WORD_LIST *)NULL; | |
1060 | w = make_word (cmd); | |
ac50fbac | 1061 | ret = make_word_list (w, (WORD_LIST *)NULL); /* $0 */ |
bb70624e | 1062 | |
ac50fbac | 1063 | w = make_word (cname); /* $1 */ |
bb70624e JA |
1064 | cl = ret->next = make_word_list (w, (WORD_LIST *)NULL); |
1065 | ||
1066 | w = make_word (text); | |
ac50fbac | 1067 | cl->next = make_word_list (w, (WORD_LIST *)NULL); /* $2 */ |
bb70624e JA |
1068 | cl = cl->next; |
1069 | ||
1070 | /* Search lwords for current word */ | |
1071 | for (l = lwords, i = 1; l && i < ind-1; l = l->next, i++) | |
1072 | ; | |
1073 | w = (l && l->word) ? copy_word (l->word) : make_word (""); | |
1074 | cl->next = make_word_list (w, (WORD_LIST *)NULL); | |
1075 | ||
1076 | return ret; | |
1077 | } | |
1078 | ||
1079 | /* Build a command string with | |
1080 | $0 == cs->funcname (function to execute for completion list) | |
1081 | $1 == command name (command being completed) | |
1082 | $2 = word to be completed (possibly null) | |
1083 | $3 = previous word | |
1084 | and run in the current shell. The function should put its completion | |
1085 | list into the array variable COMPREPLY. We build a STRINGLIST | |
1086 | from the results and return it. | |
1087 | ||
1088 | Since the shell function should return its list of matches in an array | |
1089 | variable, this does nothing if arrays are not compiled into the shell. */ | |
1090 | ||
1091 | static STRINGLIST * | |
ac50fbac | 1092 | gen_shell_function_matches (cs, cmd, text, line, ind, lwords, nw, cw, foundp) |
bb70624e | 1093 | COMPSPEC *cs; |
ac50fbac | 1094 | const char *cmd; |
f73dda09 JA |
1095 | const char *text; |
1096 | char *line; | |
bb70624e JA |
1097 | int ind; |
1098 | WORD_LIST *lwords; | |
1099 | int nw, cw; | |
0001803f | 1100 | int *foundp; |
bb70624e JA |
1101 | { |
1102 | char *funcname; | |
1103 | STRINGLIST *sl; | |
1104 | SHELL_VAR *f, *v; | |
1105 | WORD_LIST *cmdlist; | |
0001803f | 1106 | int fval, found; |
95732b49 | 1107 | sh_parser_state_t ps; |
17345e5a | 1108 | sh_parser_state_t * restrict pps; |
bb70624e JA |
1109 | #if defined (ARRAY_VARS) |
1110 | ARRAY *a; | |
1111 | #endif | |
1112 | ||
0001803f CR |
1113 | found = 0; |
1114 | if (foundp) | |
1115 | *foundp = found; | |
1116 | ||
bb70624e JA |
1117 | funcname = cs->funcname; |
1118 | f = find_function (funcname); | |
1119 | if (f == 0) | |
1120 | { | |
b80f6443 | 1121 | internal_error (_("completion: function `%s' not found"), funcname); |
28ef6c31 | 1122 | rl_ding (); |
bb70624e JA |
1123 | rl_on_new_line (); |
1124 | return ((STRINGLIST *)NULL); | |
1125 | } | |
1126 | ||
1127 | #if !defined (ARRAY_VARS) | |
1128 | return ((STRINGLIST *)NULL); | |
1129 | #else | |
1130 | ||
1131 | /* We pass cw - 1 because command_line_to_word_list returns indices that are | |
1132 | 1-based, while bash arrays are 0-based. */ | |
1133 | bind_compfunc_variables (line, ind, lwords, cw - 1, 0); | |
1134 | ||
ac50fbac | 1135 | cmdlist = build_arg_list (funcname, cmd, text, lwords, cw); |
95732b49 | 1136 | |
17345e5a | 1137 | pps = &ps; |
89a92869 | 1138 | save_parser_state (pps); |
17345e5a JA |
1139 | begin_unwind_frame ("gen-shell-function-matches"); |
1140 | add_unwind_protect (restore_parser_state, (char *)pps); | |
1141 | add_unwind_protect (dispose_words, (char *)cmdlist); | |
1142 | add_unwind_protect (unbind_compfunc_variables, (char *)0); | |
1143 | ||
bb70624e | 1144 | fval = execute_shell_function (f, cmdlist); |
17345e5a JA |
1145 | |
1146 | discard_unwind_frame ("gen-shell-function-matches"); | |
1147 | restore_parser_state (pps); | |
bb70624e | 1148 | |
0001803f CR |
1149 | found = fval != EX_NOTFOUND; |
1150 | if (fval == EX_RETRYFAIL) | |
1151 | found |= PCOMP_RETRYFAIL; | |
1152 | if (foundp) | |
1153 | *foundp = found; | |
1154 | ||
bb70624e JA |
1155 | /* Now clean up and destroy everything. */ |
1156 | dispose_words (cmdlist); | |
1157 | unbind_compfunc_variables (0); | |
1158 | ||
1159 | /* The list of completions is returned in the array variable COMPREPLY. */ | |
1160 | v = find_variable ("COMPREPLY"); | |
1161 | if (v == 0) | |
1162 | return ((STRINGLIST *)NULL); | |
1163 | if (array_p (v) == 0) | |
1164 | v = convert_var_to_array (v); | |
1165 | ||
eb873671 JA |
1166 | VUNSETATTR (v, att_invisible); |
1167 | ||
bb70624e | 1168 | a = array_cell (v); |
0001803f | 1169 | if (found == 0 || (found & PCOMP_RETRYFAIL) || a == 0 || array_empty (a)) |
bb70624e JA |
1170 | sl = (STRINGLIST *)NULL; |
1171 | else | |
1172 | { | |
1173 | /* XXX - should we filter the list of completions so only those matching | |
1174 | TEXT are returned? Right now, we do not. */ | |
7117c2d2 | 1175 | sl = strlist_create (0); |
bb70624e JA |
1176 | sl->list = array_to_argv (a); |
1177 | sl->list_len = sl->list_size = array_num_elements (a); | |
1178 | } | |
1179 | ||
1180 | /* XXX - should we unbind COMPREPLY here? */ | |
7117c2d2 | 1181 | unbind_variable ("COMPREPLY"); |
bb70624e JA |
1182 | |
1183 | return (sl); | |
1184 | #endif | |
1185 | } | |
1186 | ||
1187 | /* Build a command string with | |
1188 | $0 == cs->command (command to execute for completion list) | |
1189 | $1 == command name (command being completed) | |
1190 | $2 = word to be completed (possibly null) | |
1191 | $3 = previous word | |
1192 | and run in with command substitution. Parse the results, one word | |
1193 | per line, with backslashes allowed to escape newlines. Build a | |
1194 | STRINGLIST from the results and return it. */ | |
1195 | ||
1196 | static STRINGLIST * | |
ac50fbac | 1197 | gen_command_matches (cs, cmd, text, line, ind, lwords, nw, cw) |
bb70624e | 1198 | COMPSPEC *cs; |
ac50fbac | 1199 | const char *cmd; |
f73dda09 JA |
1200 | const char *text; |
1201 | char *line; | |
bb70624e JA |
1202 | int ind; |
1203 | WORD_LIST *lwords; | |
1204 | int nw, cw; | |
1205 | { | |
1206 | char *csbuf, *cscmd, *t; | |
1207 | int cmdlen, cmdsize, n, ws, we; | |
1208 | WORD_LIST *cmdlist, *cl; | |
3185942a | 1209 | WORD_DESC *tw; |
bb70624e JA |
1210 | STRINGLIST *sl; |
1211 | ||
1212 | bind_compfunc_variables (line, ind, lwords, cw, 1); | |
ac50fbac | 1213 | cmdlist = build_arg_list (cs->command, cmd, text, lwords, cw); |
bb70624e JA |
1214 | |
1215 | /* Estimate the size needed for the buffer. */ | |
1216 | n = strlen (cs->command); | |
1217 | cmdsize = n + 1; | |
1218 | for (cl = cmdlist->next; cl; cl = cl->next) | |
1219 | cmdsize += STRLEN (cl->word->word) + 3; | |
1220 | cmdsize += 2; | |
1221 | ||
1222 | /* allocate the string for the command and fill it in. */ | |
f73dda09 | 1223 | cscmd = (char *)xmalloc (cmdsize + 1); |
bb70624e JA |
1224 | |
1225 | strcpy (cscmd, cs->command); /* $0 */ | |
1226 | cmdlen = n; | |
1227 | cscmd[cmdlen++] = ' '; | |
1228 | for (cl = cmdlist->next; cl; cl = cl->next) /* $1, $2, $3, ... */ | |
1229 | { | |
28ef6c31 | 1230 | t = sh_single_quote (cl->word->word ? cl->word->word : ""); |
bb70624e JA |
1231 | n = strlen (t); |
1232 | RESIZE_MALLOCED_BUFFER (cscmd, cmdlen, n + 2, cmdsize, 64); | |
1233 | strcpy (cscmd + cmdlen, t); | |
1234 | cmdlen += n; | |
1235 | if (cl->next) | |
1236 | cscmd[cmdlen++] = ' '; | |
1237 | free (t); | |
1238 | } | |
1239 | cscmd[cmdlen] = '\0'; | |
1240 | ||
3185942a JA |
1241 | tw = command_substitute (cscmd, 0); |
1242 | csbuf = tw ? tw->word : (char *)NULL; | |
ac50fbac CR |
1243 | if (tw) |
1244 | dispose_word_desc (tw); | |
bb70624e JA |
1245 | |
1246 | /* Now clean up and destroy everything. */ | |
1247 | dispose_words (cmdlist); | |
1248 | free (cscmd); | |
1249 | unbind_compfunc_variables (1); | |
1250 | ||
1251 | if (csbuf == 0 || *csbuf == '\0') | |
1252 | { | |
1253 | FREE (csbuf); | |
1254 | return ((STRINGLIST *)NULL); | |
1255 | } | |
1256 | ||
1257 | /* Now break CSBUF up at newlines, with backslash allowed to escape a | |
1258 | newline, and put the individual words into a STRINGLIST. */ | |
7117c2d2 | 1259 | sl = strlist_create (16); |
bb70624e JA |
1260 | for (ws = 0; csbuf[ws]; ) |
1261 | { | |
1262 | we = ws; | |
1263 | while (csbuf[we] && csbuf[we] != '\n') | |
1264 | { | |
1265 | if (csbuf[we] == '\\' && csbuf[we+1] == '\n') | |
1266 | we++; | |
1267 | we++; | |
1268 | } | |
1269 | t = substring (csbuf, ws, we); | |
1270 | if (sl->list_len >= sl->list_size - 1) | |
7117c2d2 | 1271 | strlist_resize (sl, sl->list_size + 16); |
bb70624e JA |
1272 | sl->list[sl->list_len++] = t; |
1273 | while (csbuf[we] == '\n') we++; | |
1274 | ws = we; | |
1275 | } | |
1276 | sl->list[sl->list_len] = (char *)NULL; | |
1277 | ||
1278 | free (csbuf); | |
1279 | return (sl); | |
1280 | } | |
1281 | ||
1282 | static WORD_LIST * | |
1283 | command_line_to_word_list (line, llen, sentinel, nwp, cwp) | |
1284 | char *line; | |
1285 | int llen, sentinel, *nwp, *cwp; | |
1286 | { | |
1287 | WORD_LIST *ret; | |
1288 | char *delims; | |
0001803f CR |
1289 | |
1290 | #if 0 | |
1291 | delims = "()<>;&| \t\n"; /* shell metacharacters break words */ | |
1292 | #else | |
1293 | delims = rl_completer_word_break_characters; | |
1294 | #endif | |
1295 | ret = split_at_delims (line, llen, delims, sentinel, SD_NOQUOTEDELIM, nwp, cwp); | |
bb70624e JA |
1296 | return (ret); |
1297 | } | |
1298 | ||
1299 | /* Evaluate COMPSPEC *cs and return all matches for WORD. */ | |
1300 | ||
1301 | STRINGLIST * | |
0001803f | 1302 | gen_compspec_completions (cs, cmd, word, start, end, foundp) |
bb70624e | 1303 | COMPSPEC *cs; |
28ef6c31 JA |
1304 | const char *cmd; |
1305 | const char *word; | |
bb70624e | 1306 | int start, end; |
0001803f | 1307 | int *foundp; |
bb70624e JA |
1308 | { |
1309 | STRINGLIST *ret, *tmatches; | |
f73dda09 | 1310 | char *line; |
0001803f | 1311 | int llen, nw, cw, found, foundf; |
bb70624e | 1312 | WORD_LIST *lwords; |
ac50fbac | 1313 | WORD_DESC *lw; |
b80f6443 | 1314 | COMPSPEC *tcs; |
bb70624e | 1315 | |
0001803f CR |
1316 | found = 1; |
1317 | ||
7117c2d2 JA |
1318 | #ifdef DEBUG |
1319 | debug_printf ("gen_compspec_completions (%s, %s, %d, %d)", cmd, word, start, end); | |
1320 | debug_printf ("gen_compspec_completions: %s -> %p", cmd, cs); | |
1321 | #endif | |
bb70624e | 1322 | ret = gen_action_completions (cs, word); |
7117c2d2 | 1323 | #ifdef DEBUG |
bb70624e JA |
1324 | if (ret && progcomp_debug) |
1325 | { | |
f73dda09 | 1326 | debug_printf ("gen_action_completions (%p, %s) -->", cs, word); |
7117c2d2 | 1327 | strlist_print (ret, "\t"); |
bb70624e JA |
1328 | rl_on_new_line (); |
1329 | } | |
7117c2d2 | 1330 | #endif |
bb70624e JA |
1331 | |
1332 | /* Now we start generating completions based on the other members of CS. */ | |
1333 | if (cs->globpat) | |
1334 | { | |
1335 | tmatches = gen_globpat_matches (cs, word); | |
1336 | if (tmatches) | |
1337 | { | |
7117c2d2 | 1338 | #ifdef DEBUG |
bb70624e JA |
1339 | if (progcomp_debug) |
1340 | { | |
f73dda09 | 1341 | debug_printf ("gen_globpat_matches (%p, %s) -->", cs, word); |
7117c2d2 | 1342 | strlist_print (tmatches, "\t"); |
bb70624e JA |
1343 | rl_on_new_line (); |
1344 | } | |
7117c2d2 JA |
1345 | #endif |
1346 | ret = strlist_append (ret, tmatches); | |
1347 | strlist_dispose (tmatches); | |
bb70624e JA |
1348 | rl_filename_completion_desired = 1; |
1349 | } | |
1350 | } | |
1351 | ||
1352 | if (cs->words) | |
1353 | { | |
1354 | tmatches = gen_wordlist_matches (cs, word); | |
1355 | if (tmatches) | |
1356 | { | |
7117c2d2 | 1357 | #ifdef DEBUG |
bb70624e JA |
1358 | if (progcomp_debug) |
1359 | { | |
f73dda09 | 1360 | debug_printf ("gen_wordlist_matches (%p, %s) -->", cs, word); |
7117c2d2 | 1361 | strlist_print (tmatches, "\t"); |
bb70624e JA |
1362 | rl_on_new_line (); |
1363 | } | |
7117c2d2 JA |
1364 | #endif |
1365 | ret = strlist_append (ret, tmatches); | |
1366 | strlist_dispose (tmatches); | |
bb70624e JA |
1367 | } |
1368 | } | |
1369 | ||
1370 | lwords = (WORD_LIST *)NULL; | |
1371 | line = (char *)NULL; | |
1372 | if (cs->command || cs->funcname) | |
1373 | { | |
1374 | /* If we have a command or function to execute, we need to first break | |
1375 | the command line into individual words, find the number of words, | |
1376 | and find the word in the list containing the word to be completed. */ | |
1377 | line = substring (rl_line_buffer, start, end); | |
1378 | llen = end - start; | |
1379 | ||
7117c2d2 | 1380 | #ifdef DEBUG |
f73dda09 | 1381 | debug_printf ("command_line_to_word_list (%s, %d, %d, %p, %p)", |
bb70624e | 1382 | line, llen, rl_point - start, &nw, &cw); |
7117c2d2 | 1383 | #endif |
bb70624e | 1384 | lwords = command_line_to_word_list (line, llen, rl_point - start, &nw, &cw); |
ac50fbac CR |
1385 | /* If we skipped a NULL word at the beginning of the line, add it back */ |
1386 | if (lwords && lwords->word && cmd[0] == 0 && lwords->word->word[0] != 0) | |
1387 | { | |
1388 | lw = make_bare_word (cmd); | |
1389 | lwords = make_word_list (lw, lwords); | |
1390 | nw++; | |
1391 | cw++; | |
1392 | } | |
7117c2d2 | 1393 | #ifdef DEBUG |
bb70624e JA |
1394 | if (lwords == 0 && llen > 0) |
1395 | debug_printf ("ERROR: command_line_to_word_list returns NULL"); | |
1396 | else if (progcomp_debug) | |
1397 | { | |
1398 | debug_printf ("command_line_to_word_list -->"); | |
1399 | printf ("\t"); | |
1400 | print_word_list (lwords, "!"); | |
1401 | printf ("\n"); | |
1402 | fflush(stdout); | |
1403 | rl_on_new_line (); | |
1404 | } | |
7117c2d2 | 1405 | #endif |
bb70624e JA |
1406 | } |
1407 | ||
1408 | if (cs->funcname) | |
1409 | { | |
0001803f | 1410 | foundf = 0; |
ac50fbac | 1411 | tmatches = gen_shell_function_matches (cs, cmd, word, line, rl_point - start, lwords, nw, cw, &foundf); |
0001803f CR |
1412 | if (foundf != 0) |
1413 | found = foundf; | |
bb70624e JA |
1414 | if (tmatches) |
1415 | { | |
7117c2d2 | 1416 | #ifdef DEBUG |
bb70624e JA |
1417 | if (progcomp_debug) |
1418 | { | |
ac50fbac | 1419 | debug_printf ("gen_shell_function_matches (%p, %s, %s, %p, %d, %d) -->", cs, cmd, word, lwords, nw, cw); |
7117c2d2 | 1420 | strlist_print (tmatches, "\t"); |
bb70624e JA |
1421 | rl_on_new_line (); |
1422 | } | |
7117c2d2 JA |
1423 | #endif |
1424 | ret = strlist_append (ret, tmatches); | |
1425 | strlist_dispose (tmatches); | |
bb70624e JA |
1426 | } |
1427 | } | |
1428 | ||
1429 | if (cs->command) | |
1430 | { | |
ac50fbac | 1431 | tmatches = gen_command_matches (cs, cmd, word, line, rl_point - start, lwords, nw, cw); |
bb70624e JA |
1432 | if (tmatches) |
1433 | { | |
7117c2d2 | 1434 | #ifdef DEBUG |
bb70624e JA |
1435 | if (progcomp_debug) |
1436 | { | |
ac50fbac | 1437 | debug_printf ("gen_command_matches (%p, %s, %s, %p, %d, %d) -->", cs, cmd, word, lwords, nw, cw); |
7117c2d2 | 1438 | strlist_print (tmatches, "\t"); |
bb70624e JA |
1439 | rl_on_new_line (); |
1440 | } | |
7117c2d2 JA |
1441 | #endif |
1442 | ret = strlist_append (ret, tmatches); | |
1443 | strlist_dispose (tmatches); | |
bb70624e JA |
1444 | } |
1445 | } | |
1446 | ||
1447 | if (cs->command || cs->funcname) | |
1448 | { | |
1449 | if (lwords) | |
1450 | dispose_words (lwords); | |
1451 | FREE (line); | |
1452 | } | |
1453 | ||
0001803f CR |
1454 | if (foundp) |
1455 | *foundp = found; | |
1456 | ||
1457 | if (found == 0 || (found & PCOMP_RETRYFAIL)) | |
1458 | { | |
1459 | strlist_dispose (ret); | |
1460 | return NULL; | |
1461 | } | |
1462 | ||
bb70624e JA |
1463 | if (cs->filterpat) |
1464 | { | |
1465 | tmatches = filter_stringlist (ret, cs->filterpat, word); | |
7117c2d2 | 1466 | #ifdef DEBUG |
bb70624e JA |
1467 | if (progcomp_debug) |
1468 | { | |
f73dda09 | 1469 | debug_printf ("filter_stringlist (%p, %s, %s) -->", ret, cs->filterpat, word); |
7117c2d2 | 1470 | strlist_print (tmatches, "\t"); |
bb70624e JA |
1471 | rl_on_new_line (); |
1472 | } | |
7117c2d2 | 1473 | #endif |
bb70624e JA |
1474 | if (ret && ret != tmatches) |
1475 | { | |
1476 | FREE (ret->list); | |
1477 | free (ret); | |
1478 | } | |
1479 | ret = tmatches; | |
1480 | } | |
1481 | ||
1482 | if (cs->prefix || cs->suffix) | |
7117c2d2 | 1483 | ret = strlist_prefix_suffix (ret, cs->prefix, cs->suffix); |
bb70624e | 1484 | |
28ef6c31 JA |
1485 | /* If no matches have been generated and the user has specified that |
1486 | directory completion should be done as a default, call | |
1487 | gen_action_completions again to generate a list of matching directory | |
1488 | names. */ | |
1489 | if ((ret == 0 || ret->list_len == 0) && (cs->options & COPT_DIRNAMES)) | |
1490 | { | |
b80f6443 JA |
1491 | tcs = compspec_create (); |
1492 | tcs->actions = CA_DIRECTORY; | |
ac50fbac | 1493 | FREE (ret); |
b80f6443 JA |
1494 | ret = gen_action_completions (tcs, word); |
1495 | compspec_dispose (tcs); | |
1496 | } | |
1497 | else if (cs->options & COPT_PLUSDIRS) | |
1498 | { | |
1499 | tcs = compspec_create (); | |
1500 | tcs->actions = CA_DIRECTORY; | |
1501 | tmatches = gen_action_completions (tcs, word); | |
1502 | ret = strlist_append (ret, tmatches); | |
1503 | strlist_dispose (tmatches); | |
1504 | compspec_dispose (tcs); | |
28ef6c31 JA |
1505 | } |
1506 | ||
bb70624e JA |
1507 | return (ret); |
1508 | } | |
1509 | ||
3185942a JA |
1510 | void |
1511 | pcomp_set_readline_variables (flags, nval) | |
1512 | int flags, nval; | |
1513 | { | |
1514 | /* If the user specified that the compspec returns filenames, make | |
1515 | sure that readline knows it. */ | |
1516 | if (flags & COPT_FILENAMES) | |
1517 | rl_filename_completion_desired = nval; | |
1518 | /* If the user doesn't want a space appended, tell readline. */ | |
1519 | if (flags & COPT_NOSPACE) | |
1520 | rl_completion_suppress_append = nval; | |
ac50fbac CR |
1521 | /* The value here is inverted, since the default is on and the `noquote' |
1522 | option is supposed to turn it off */ | |
1523 | if (flags & COPT_NOQUOTE) | |
1524 | rl_filename_quoting_desired = 1 - nval; | |
3185942a JA |
1525 | } |
1526 | ||
1527 | /* Set or unset FLAGS in the options word of the current compspec. | |
1528 | SET_OR_UNSET is 1 for setting, 0 for unsetting. */ | |
1529 | void | |
1530 | pcomp_set_compspec_options (cs, flags, set_or_unset) | |
1531 | COMPSPEC *cs; | |
1532 | int flags, set_or_unset; | |
1533 | { | |
1534 | if (cs == 0 && ((cs = pcomp_curcs) == 0)) | |
1535 | return; | |
1536 | if (set_or_unset) | |
1537 | cs->options |= flags; | |
1538 | else | |
1539 | cs->options &= ~flags; | |
1540 | } | |
1541 | ||
0001803f CR |
1542 | static STRINGLIST * |
1543 | gen_progcomp_completions (ocmd, cmd, word, start, end, foundp, retryp, lastcs) | |
1544 | const char *ocmd; | |
28ef6c31 JA |
1545 | const char *cmd; |
1546 | const char *word; | |
0001803f CR |
1547 | int start, end; |
1548 | int *foundp, *retryp; | |
1549 | COMPSPEC **lastcs; | |
bb70624e | 1550 | { |
3185942a | 1551 | COMPSPEC *cs, *oldcs; |
2b76266c | 1552 | const char *oldcmd, *oldtxt; |
0001803f | 1553 | STRINGLIST *ret; |
bb70624e | 1554 | |
0001803f CR |
1555 | cs = progcomp_search (ocmd); |
1556 | ||
1557 | if (cs == 0 || cs == *lastcs) | |
ac50fbac CR |
1558 | { |
1559 | #if 0 | |
1560 | if (foundp) | |
1561 | *foundp = 0; | |
1562 | #endif | |
1563 | return (NULL); | |
1564 | } | |
0001803f CR |
1565 | |
1566 | if (*lastcs) | |
1567 | compspec_dispose (*lastcs); | |
1568 | cs->refcount++; /* XXX */ | |
1569 | *lastcs = cs; | |
bb70624e | 1570 | |
b80f6443 JA |
1571 | cs = compspec_copy (cs); |
1572 | ||
3185942a JA |
1573 | oldcs = pcomp_curcs; |
1574 | oldcmd = pcomp_curcmd; | |
2b76266c | 1575 | oldtxt = pcomp_curtxt; |
3185942a JA |
1576 | |
1577 | pcomp_curcs = cs; | |
1578 | pcomp_curcmd = cmd; | |
2b76266c | 1579 | pcomp_curtxt = word; |
3185942a | 1580 | |
0001803f | 1581 | ret = gen_compspec_completions (cs, cmd, word, start, end, foundp); |
bb70624e | 1582 | |
3185942a JA |
1583 | pcomp_curcs = oldcs; |
1584 | pcomp_curcmd = oldcmd; | |
2b76266c | 1585 | pcomp_curtxt = oldtxt; |
3185942a | 1586 | |
0001803f CR |
1587 | /* We need to conditionally handle setting *retryp here */ |
1588 | if (retryp) | |
1589 | *retryp = foundp && (*foundp & PCOMP_RETRYFAIL); | |
1590 | ||
1591 | if (foundp) | |
1592 | { | |
1593 | *foundp &= ~PCOMP_RETRYFAIL; | |
1594 | *foundp |= cs->options; | |
1595 | } | |
1596 | ||
b80f6443 | 1597 | compspec_dispose (cs); |
0001803f CR |
1598 | return ret; |
1599 | } | |
1600 | ||
1601 | /* The driver function for the programmable completion code. Returns a list | |
1602 | of matches for WORD, which is an argument to command CMD. START and END | |
1603 | bound the command currently being completed in rl_line_buffer. */ | |
1604 | char ** | |
1605 | programmable_completions (cmd, word, start, end, foundp) | |
1606 | const char *cmd; | |
1607 | const char *word; | |
1608 | int start, end, *foundp; | |
1609 | { | |
1610 | COMPSPEC *cs, *lastcs; | |
1611 | STRINGLIST *ret; | |
1612 | char **rmatches, *t; | |
1613 | int found, retry, count; | |
1614 | ||
1615 | lastcs = 0; | |
1616 | found = count = 0; | |
1617 | ||
1618 | do | |
1619 | { | |
1620 | retry = 0; | |
1621 | ||
1622 | /* We look at the basename of CMD if the full command does not have | |
1623 | an associated COMPSPEC. */ | |
1624 | ret = gen_progcomp_completions (cmd, cmd, word, start, end, &found, &retry, &lastcs); | |
1625 | if (found == 0) | |
1626 | { | |
1627 | t = strrchr (cmd, '/'); | |
1628 | if (t && *(++t)) | |
1629 | ret = gen_progcomp_completions (t, cmd, word, start, end, &found, &retry, &lastcs); | |
1630 | } | |
1631 | ||
1632 | if (found == 0) | |
1633 | ret = gen_progcomp_completions (DEFAULTCMD, cmd, word, start, end, &found, &retry, &lastcs); | |
1634 | ||
1635 | count++; | |
1636 | ||
1637 | if (count > 32) | |
1638 | { | |
1639 | internal_warning ("programmable_completion: %s: possible retry loop", cmd); | |
1640 | break; | |
1641 | } | |
1642 | } | |
1643 | while (retry); | |
b80f6443 | 1644 | |
bb70624e JA |
1645 | if (ret) |
1646 | { | |
1647 | rmatches = ret->list; | |
1648 | free (ret); | |
1649 | } | |
1650 | else | |
1651 | rmatches = (char **)NULL; | |
1652 | ||
0001803f CR |
1653 | if (foundp) |
1654 | *foundp = found; | |
1655 | ||
1656 | if (lastcs) /* XXX - should be while? */ | |
1657 | compspec_dispose (lastcs); | |
1658 | ||
bb70624e JA |
1659 | return (rmatches); |
1660 | } | |
1661 | ||
1662 | #endif /* PROGRAMMABLE_COMPLETION */ |