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