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f73dda09 JA |
1 | /* arrayfunc.c -- High-level array functions used by other parts of the shell. */ |
2 | ||
ac50fbac | 3 | /* Copyright (C) 2001-2011 Free Software Foundation, Inc. |
f73dda09 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. | |
f73dda09 | 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. | |
f73dda09 | 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 | */ | |
f73dda09 JA |
20 | |
21 | #include "config.h" | |
22 | ||
23 | #if defined (ARRAY_VARS) | |
24 | ||
25 | #if defined (HAVE_UNISTD_H) | |
26 | # include <unistd.h> | |
27 | #endif | |
28 | #include <stdio.h> | |
29 | ||
b80f6443 JA |
30 | #include "bashintl.h" |
31 | ||
f73dda09 | 32 | #include "shell.h" |
3185942a | 33 | #include "pathexp.h" |
7117c2d2 JA |
34 | |
35 | #include "shmbutil.h" | |
36 | ||
f73dda09 JA |
37 | #include "builtins/common.h" |
38 | ||
39 | extern char *this_command_name; | |
40 | extern int last_command_exit_value; | |
95732b49 JA |
41 | extern int array_needs_making; |
42 | ||
3185942a | 43 | static SHELL_VAR *bind_array_var_internal __P((SHELL_VAR *, arrayind_t, char *, char *, int)); |
ac50fbac | 44 | static SHELL_VAR *assign_array_element_internal __P((SHELL_VAR *, char *, char *, char *, int, char *, int)); |
f73dda09 | 45 | |
3185942a | 46 | static char *quote_assign __P((const char *)); |
f73dda09 | 47 | static void quote_array_assignment_chars __P((WORD_LIST *)); |
495aee44 | 48 | static char *array_value_internal __P((char *, int, int, int *, arrayind_t *)); |
f73dda09 | 49 | |
b80f6443 | 50 | /* Standard error message to use when encountering an invalid array subscript */ |
3185942a | 51 | const char * const bash_badsub_errmsg = N_("bad array subscript"); |
b80f6443 | 52 | |
f73dda09 JA |
53 | /* **************************************************************** */ |
54 | /* */ | |
55 | /* Functions to manipulate array variables and perform assignments */ | |
56 | /* */ | |
57 | /* **************************************************************** */ | |
58 | ||
59 | /* Convert a shell variable to an array variable. The original value is | |
60 | saved as array[0]. */ | |
61 | SHELL_VAR * | |
62 | convert_var_to_array (var) | |
63 | SHELL_VAR *var; | |
64 | { | |
65 | char *oldval; | |
66 | ARRAY *array; | |
67 | ||
68 | oldval = value_cell (var); | |
7117c2d2 | 69 | array = array_create (); |
b80f6443 JA |
70 | if (oldval) |
71 | array_insert (array, 0, oldval); | |
f73dda09 JA |
72 | |
73 | FREE (value_cell (var)); | |
7117c2d2 JA |
74 | var_setarray (var, array); |
75 | ||
76 | /* these aren't valid anymore */ | |
77 | var->dynamic_value = (sh_var_value_func_t *)NULL; | |
78 | var->assign_func = (sh_var_assign_func_t *)NULL; | |
f73dda09 JA |
79 | |
80 | INVALIDATE_EXPORTSTR (var); | |
95732b49 JA |
81 | if (exported_p (var)) |
82 | array_needs_making++; | |
f73dda09 JA |
83 | |
84 | VSETATTR (var, att_array); | |
85 | VUNSETATTR (var, att_invisible); | |
86 | ||
87 | return var; | |
88 | } | |
89 | ||
3185942a JA |
90 | /* Convert a shell variable to an array variable. The original value is |
91 | saved as array[0]. */ | |
92 | SHELL_VAR * | |
93 | convert_var_to_assoc (var) | |
94 | SHELL_VAR *var; | |
95 | { | |
96 | char *oldval; | |
97 | HASH_TABLE *hash; | |
98 | ||
99 | oldval = value_cell (var); | |
100 | hash = assoc_create (0); | |
101 | if (oldval) | |
89a92869 | 102 | assoc_insert (hash, savestring ("0"), oldval); |
3185942a JA |
103 | |
104 | FREE (value_cell (var)); | |
105 | var_setassoc (var, hash); | |
106 | ||
107 | /* these aren't valid anymore */ | |
108 | var->dynamic_value = (sh_var_value_func_t *)NULL; | |
109 | var->assign_func = (sh_var_assign_func_t *)NULL; | |
110 | ||
111 | INVALIDATE_EXPORTSTR (var); | |
112 | if (exported_p (var)) | |
113 | array_needs_making++; | |
114 | ||
115 | VSETATTR (var, att_assoc); | |
116 | VUNSETATTR (var, att_invisible); | |
117 | ||
118 | return var; | |
119 | } | |
120 | ||
ac50fbac CR |
121 | char * |
122 | make_array_variable_value (entry, ind, key, value, flags) | |
95732b49 JA |
123 | SHELL_VAR *entry; |
124 | arrayind_t ind; | |
3185942a | 125 | char *key; |
95732b49 JA |
126 | char *value; |
127 | int flags; | |
128 | { | |
129 | SHELL_VAR *dentry; | |
130 | char *newval; | |
131 | ||
132 | /* If we're appending, we need the old value of the array reference, so | |
133 | fake out make_variable_value with a dummy SHELL_VAR */ | |
134 | if (flags & ASS_APPEND) | |
135 | { | |
136 | dentry = (SHELL_VAR *)xmalloc (sizeof (SHELL_VAR)); | |
137 | dentry->name = savestring (entry->name); | |
3185942a JA |
138 | if (assoc_p (entry)) |
139 | newval = assoc_reference (assoc_cell (entry), key); | |
140 | else | |
141 | newval = array_reference (array_cell (entry), ind); | |
95732b49 JA |
142 | if (newval) |
143 | dentry->value = savestring (newval); | |
144 | else | |
145 | { | |
146 | dentry->value = (char *)xmalloc (1); | |
147 | dentry->value[0] = '\0'; | |
148 | } | |
149 | dentry->exportstr = 0; | |
3185942a | 150 | dentry->attributes = entry->attributes & ~(att_array|att_assoc|att_exported); |
95732b49 JA |
151 | /* Leave the rest of the members uninitialized; the code doesn't look |
152 | at them. */ | |
153 | newval = make_variable_value (dentry, value, flags); | |
154 | dispose_variable (dentry); | |
155 | } | |
156 | else | |
157 | newval = make_variable_value (entry, value, flags); | |
158 | ||
ac50fbac CR |
159 | return newval; |
160 | } | |
161 | ||
162 | static SHELL_VAR * | |
163 | bind_array_var_internal (entry, ind, key, value, flags) | |
164 | SHELL_VAR *entry; | |
165 | arrayind_t ind; | |
166 | char *key; | |
167 | char *value; | |
168 | int flags; | |
169 | { | |
170 | char *newval; | |
171 | ||
172 | newval = make_array_variable_value (entry, ind, key, value, flags); | |
173 | ||
95732b49 | 174 | if (entry->assign_func) |
3185942a JA |
175 | (*entry->assign_func) (entry, newval, ind, key); |
176 | else if (assoc_p (entry)) | |
177 | assoc_insert (assoc_cell (entry), key, newval); | |
95732b49 JA |
178 | else |
179 | array_insert (array_cell (entry), ind, newval); | |
180 | FREE (newval); | |
181 | ||
35751626 | 182 | VUNSETATTR (entry, att_invisible); /* no longer invisible */ |
95732b49 JA |
183 | return (entry); |
184 | } | |
185 | ||
f73dda09 JA |
186 | /* Perform an array assignment name[ind]=value. If NAME already exists and |
187 | is not an array, and IND is 0, perform name=value instead. If NAME exists | |
188 | and is not an array, and IND is not 0, convert it into an array with the | |
189 | existing value as name[0]. | |
190 | ||
191 | If NAME does not exist, just create an array variable, no matter what | |
192 | IND's value may be. */ | |
193 | SHELL_VAR * | |
95732b49 | 194 | bind_array_variable (name, ind, value, flags) |
f73dda09 JA |
195 | char *name; |
196 | arrayind_t ind; | |
197 | char *value; | |
95732b49 | 198 | int flags; |
f73dda09 JA |
199 | { |
200 | SHELL_VAR *entry; | |
f73dda09 | 201 | |
ac50fbac | 202 | entry = find_shell_variable (name); |
f73dda09 JA |
203 | |
204 | if (entry == (SHELL_VAR *) 0) | |
205 | entry = make_new_array_variable (name); | |
206 | else if (readonly_p (entry) || noassign_p (entry)) | |
207 | { | |
208 | if (readonly_p (entry)) | |
7117c2d2 | 209 | err_readonly (name); |
f73dda09 JA |
210 | return (entry); |
211 | } | |
212 | else if (array_p (entry) == 0) | |
213 | entry = convert_var_to_array (entry); | |
214 | ||
215 | /* ENTRY is an array variable, and ARRAY points to the value. */ | |
3185942a JA |
216 | return (bind_array_var_internal (entry, ind, 0, value, flags)); |
217 | } | |
218 | ||
219 | SHELL_VAR * | |
220 | bind_array_element (entry, ind, value, flags) | |
221 | SHELL_VAR *entry; | |
222 | arrayind_t ind; | |
223 | char *value; | |
224 | int flags; | |
225 | { | |
226 | return (bind_array_var_internal (entry, ind, 0, value, flags)); | |
227 | } | |
228 | ||
229 | SHELL_VAR * | |
230 | bind_assoc_variable (entry, name, key, value, flags) | |
231 | SHELL_VAR *entry; | |
232 | char *name; | |
233 | char *key; | |
234 | char *value; | |
235 | int flags; | |
236 | { | |
237 | SHELL_VAR *dentry; | |
238 | char *newval; | |
239 | ||
240 | if (readonly_p (entry) || noassign_p (entry)) | |
241 | { | |
242 | if (readonly_p (entry)) | |
243 | err_readonly (name); | |
244 | return (entry); | |
245 | } | |
246 | ||
247 | return (bind_array_var_internal (entry, 0, key, value, flags)); | |
f73dda09 JA |
248 | } |
249 | ||
250 | /* Parse NAME, a lhs of an assignment statement of the form v[s], and | |
251 | assign VALUE to that array element by calling bind_array_variable(). */ | |
252 | SHELL_VAR * | |
95732b49 | 253 | assign_array_element (name, value, flags) |
f73dda09 | 254 | char *name, *value; |
95732b49 | 255 | int flags; |
f73dda09 | 256 | { |
ac50fbac | 257 | char *sub, *vname; |
f73dda09 JA |
258 | int sublen; |
259 | SHELL_VAR *entry; | |
260 | ||
261 | vname = array_variable_name (name, &sub, &sublen); | |
262 | ||
263 | if (vname == 0) | |
264 | return ((SHELL_VAR *)NULL); | |
265 | ||
266 | if ((ALL_ELEMENT_SUB (sub[0]) && sub[1] == ']') || (sublen <= 1)) | |
267 | { | |
268 | free (vname); | |
7117c2d2 | 269 | err_badarraysub (name); |
f73dda09 JA |
270 | return ((SHELL_VAR *)NULL); |
271 | } | |
272 | ||
3185942a | 273 | entry = find_variable (vname); |
ac50fbac CR |
274 | entry = assign_array_element_internal (entry, name, vname, sub, sublen, value, flags); |
275 | ||
276 | free (vname); | |
277 | return entry; | |
278 | } | |
279 | ||
280 | static SHELL_VAR * | |
281 | assign_array_element_internal (entry, name, vname, sub, sublen, value, flags) | |
282 | SHELL_VAR *entry; | |
283 | char *name; /* only used for error messages */ | |
284 | char *vname; | |
285 | char *sub; | |
286 | int sublen; | |
287 | char *value; | |
288 | int flags; | |
289 | { | |
290 | char *akey; | |
291 | arrayind_t ind; | |
3185942a JA |
292 | |
293 | if (entry && assoc_p (entry)) | |
f73dda09 | 294 | { |
3185942a JA |
295 | sub[sublen-1] = '\0'; |
296 | akey = expand_assignment_string_to_string (sub, 0); /* [ */ | |
297 | sub[sublen-1] = ']'; | |
298 | if (akey == 0 || *akey == 0) | |
299 | { | |
3185942a | 300 | err_badarraysub (name); |
ac50fbac | 301 | FREE (akey); |
3185942a JA |
302 | return ((SHELL_VAR *)NULL); |
303 | } | |
304 | entry = bind_assoc_variable (entry, vname, akey, value, flags); | |
305 | } | |
306 | else | |
307 | { | |
ac50fbac CR |
308 | ind = array_expand_index (entry, sub, sublen); |
309 | /* negative subscripts to indexed arrays count back from end */ | |
310 | if (entry && ind < 0) | |
311 | ind = (array_p (entry) ? array_max_index (array_cell (entry)) : 0) + 1 + ind; | |
3185942a JA |
312 | if (ind < 0) |
313 | { | |
3185942a JA |
314 | err_badarraysub (name); |
315 | return ((SHELL_VAR *)NULL); | |
316 | } | |
317 | entry = bind_array_variable (vname, ind, value, flags); | |
f73dda09 | 318 | } |
f73dda09 | 319 | |
f73dda09 JA |
320 | return (entry); |
321 | } | |
322 | ||
323 | /* Find the array variable corresponding to NAME. If there is no variable, | |
324 | create a new array variable. If the variable exists but is not an array, | |
3185942a | 325 | convert it to an indexed array. If FLAGS&1 is non-zero, an existing |
f73dda09 | 326 | variable is checked for the readonly or noassign attribute in preparation |
3185942a JA |
327 | for assignment (e.g., by the `read' builtin). If FLAGS&2 is non-zero, we |
328 | create an associative array. */ | |
f73dda09 | 329 | SHELL_VAR * |
3185942a | 330 | find_or_make_array_variable (name, flags) |
f73dda09 | 331 | char *name; |
3185942a | 332 | int flags; |
f73dda09 JA |
333 | { |
334 | SHELL_VAR *var; | |
335 | ||
336 | var = find_variable (name); | |
ac50fbac CR |
337 | if (var == 0) |
338 | { | |
339 | /* See if we have a nameref pointing to a variable that hasn't been | |
340 | created yet. */ | |
341 | var = find_variable_last_nameref (name); | |
342 | if (var && nameref_p (var)) | |
343 | var = (flags & 2) ? make_new_assoc_variable (nameref_cell (var)) : make_new_array_variable (nameref_cell (var)); | |
344 | } | |
f73dda09 JA |
345 | |
346 | if (var == 0) | |
3185942a JA |
347 | var = (flags & 2) ? make_new_assoc_variable (name) : make_new_array_variable (name); |
348 | else if ((flags & 1) && (readonly_p (var) || noassign_p (var))) | |
f73dda09 JA |
349 | { |
350 | if (readonly_p (var)) | |
7117c2d2 | 351 | err_readonly (name); |
f73dda09 JA |
352 | return ((SHELL_VAR *)NULL); |
353 | } | |
3185942a JA |
354 | else if ((flags & 2) && array_p (var)) |
355 | { | |
ac50fbac | 356 | last_command_exit_value = 1; |
3185942a JA |
357 | report_error (_("%s: cannot convert indexed to associative array"), name); |
358 | return ((SHELL_VAR *)NULL); | |
359 | } | |
360 | else if (array_p (var) == 0 && assoc_p (var) == 0) | |
f73dda09 JA |
361 | var = convert_var_to_array (var); |
362 | ||
363 | return (var); | |
364 | } | |
365 | ||
366 | /* Perform a compound assignment statement for array NAME, where VALUE is | |
367 | the text between the parens: NAME=( VALUE ) */ | |
368 | SHELL_VAR * | |
95732b49 | 369 | assign_array_from_string (name, value, flags) |
f73dda09 | 370 | char *name, *value; |
95732b49 | 371 | int flags; |
f73dda09 JA |
372 | { |
373 | SHELL_VAR *var; | |
3185942a | 374 | int vflags; |
f73dda09 | 375 | |
3185942a JA |
376 | vflags = 1; |
377 | if (flags & ASS_MKASSOC) | |
378 | vflags |= 2; | |
379 | ||
380 | var = find_or_make_array_variable (name, vflags); | |
f73dda09 JA |
381 | if (var == 0) |
382 | return ((SHELL_VAR *)NULL); | |
383 | ||
95732b49 | 384 | return (assign_array_var_from_string (var, value, flags)); |
f73dda09 JA |
385 | } |
386 | ||
387 | /* Sequentially assign the indices of indexed array variable VAR from the | |
388 | words in LIST. */ | |
389 | SHELL_VAR * | |
95732b49 | 390 | assign_array_var_from_word_list (var, list, flags) |
f73dda09 JA |
391 | SHELL_VAR *var; |
392 | WORD_LIST *list; | |
95732b49 | 393 | int flags; |
f73dda09 JA |
394 | { |
395 | register arrayind_t i; | |
396 | register WORD_LIST *l; | |
397 | ARRAY *a; | |
398 | ||
95732b49 JA |
399 | a = array_cell (var); |
400 | i = (flags & ASS_APPEND) ? array_max_index (a) + 1 : 0; | |
401 | ||
402 | for (l = list; l; l = l->next, i++) | |
f73dda09 | 403 | if (var->assign_func) |
3185942a | 404 | (*var->assign_func) (var, l->word->word, i, 0); |
f73dda09 | 405 | else |
7117c2d2 | 406 | array_insert (a, i, l->word->word); |
f73dda09 JA |
407 | return var; |
408 | } | |
409 | ||
0628567a | 410 | WORD_LIST * |
3185942a JA |
411 | expand_compound_array_assignment (var, value, flags) |
412 | SHELL_VAR *var; | |
f73dda09 | 413 | char *value; |
95732b49 | 414 | int flags; |
f73dda09 | 415 | { |
f73dda09 | 416 | WORD_LIST *list, *nlist; |
ac50fbac | 417 | WORD_LIST *hd, *tl, *t, *n; |
0628567a JA |
418 | char *val; |
419 | int ni; | |
f73dda09 | 420 | |
ac50fbac CR |
421 | /* This condition is true when invoked from the declare builtin with a |
422 | command like | |
423 | declare -a d='([1]="" [2]="bdef" [5]="hello world" "test")' */ | |
f73dda09 JA |
424 | if (*value == '(') /*)*/ |
425 | { | |
426 | ni = 1; | |
427 | val = extract_array_assignment_list (value, &ni); | |
428 | if (val == 0) | |
0628567a | 429 | return (WORD_LIST *)NULL; |
f73dda09 JA |
430 | } |
431 | else | |
432 | val = value; | |
433 | ||
434 | /* Expand the value string into a list of words, performing all the | |
435 | shell expansions including pathname generation and word splitting. */ | |
436 | /* First we split the string on whitespace, using the shell parser | |
437 | (ksh93 seems to do this). */ | |
b80f6443 | 438 | list = parse_string_to_word_list (val, 1, "array assign"); |
f73dda09 | 439 | |
ac50fbac CR |
440 | if (var && assoc_p (var)) |
441 | { | |
442 | if (val != value) | |
443 | free (val); | |
444 | return list; | |
445 | } | |
446 | ||
f73dda09 | 447 | /* If we're using [subscript]=value, we need to quote each [ and ] to |
ac50fbac CR |
448 | prevent unwanted filename expansion. This doesn't need to be done |
449 | for associative array expansion, since that uses a different expansion | |
450 | function (see assign_compound_array_list below). */ | |
f73dda09 JA |
451 | if (list) |
452 | quote_array_assignment_chars (list); | |
453 | ||
454 | /* Now that we've split it, perform the shell expansions on each | |
455 | word in the list. */ | |
456 | nlist = list ? expand_words_no_vars (list) : (WORD_LIST *)NULL; | |
457 | ||
458 | dispose_words (list); | |
459 | ||
460 | if (val != value) | |
461 | free (val); | |
462 | ||
0628567a JA |
463 | return nlist; |
464 | } | |
465 | ||
0001803f | 466 | /* Callers ensure that VAR is not NULL */ |
0628567a JA |
467 | void |
468 | assign_compound_array_list (var, nlist, flags) | |
469 | SHELL_VAR *var; | |
470 | WORD_LIST *nlist; | |
471 | int flags; | |
472 | { | |
473 | ARRAY *a; | |
3185942a | 474 | HASH_TABLE *h; |
0628567a JA |
475 | WORD_LIST *list; |
476 | char *w, *val, *nval; | |
ac50fbac | 477 | int len, iflags, free_val; |
0628567a | 478 | arrayind_t ind, last_ind; |
3185942a | 479 | char *akey; |
0628567a | 480 | |
3185942a JA |
481 | a = (var && array_p (var)) ? array_cell (var) : (ARRAY *)0; |
482 | h = (var && assoc_p (var)) ? assoc_cell (var) : (HASH_TABLE *)0; | |
483 | ||
484 | akey = (char *)0; | |
485 | ind = 0; | |
f73dda09 JA |
486 | |
487 | /* Now that we are ready to assign values to the array, kill the existing | |
488 | value. */ | |
3185942a JA |
489 | if ((flags & ASS_APPEND) == 0) |
490 | { | |
0001803f | 491 | if (a && array_p (var)) |
3185942a | 492 | array_flush (a); |
0001803f | 493 | else if (h && assoc_p (var)) |
3185942a JA |
494 | assoc_flush (h); |
495 | } | |
496 | ||
497 | last_ind = (a && (flags & ASS_APPEND)) ? array_max_index (a) + 1 : 0; | |
f73dda09 | 498 | |
95732b49 | 499 | for (list = nlist; list; list = list->next) |
f73dda09 | 500 | { |
0628567a | 501 | iflags = flags; |
f73dda09 JA |
502 | w = list->word->word; |
503 | ||
504 | /* We have a word of the form [ind]=value */ | |
b80f6443 | 505 | if ((list->word->flags & W_ASSIGNMENT) && w[0] == '[') |
f73dda09 | 506 | { |
ac50fbac CR |
507 | /* Don't have to handle embedded quotes specially any more, since |
508 | associative array subscripts have not been expanded yet (see | |
509 | above). */ | |
510 | len = skipsubscript (w, 0, 0); | |
f73dda09 | 511 | |
95732b49 JA |
512 | /* XXX - changes for `+=' */ |
513 | if (w[len] != ']' || (w[len+1] != '=' && (w[len+1] != '+' || w[len+2] != '='))) | |
f73dda09 | 514 | { |
3185942a JA |
515 | if (assoc_p (var)) |
516 | { | |
517 | err_badarraysub (w); | |
518 | continue; | |
519 | } | |
95732b49 | 520 | nval = make_variable_value (var, w, flags); |
f73dda09 | 521 | if (var->assign_func) |
3185942a | 522 | (*var->assign_func) (var, nval, last_ind, 0); |
f73dda09 | 523 | else |
7117c2d2 | 524 | array_insert (a, last_ind, nval); |
f73dda09 JA |
525 | FREE (nval); |
526 | last_ind++; | |
527 | continue; | |
528 | } | |
529 | ||
530 | if (len == 1) | |
531 | { | |
7117c2d2 | 532 | err_badarraysub (w); |
f73dda09 JA |
533 | continue; |
534 | } | |
535 | ||
536 | if (ALL_ELEMENT_SUB (w[1]) && len == 2) | |
537 | { | |
ac50fbac | 538 | last_command_exit_value = 1; |
3185942a JA |
539 | if (assoc_p (var)) |
540 | report_error (_("%s: invalid associative array key"), w); | |
541 | else | |
542 | report_error (_("%s: cannot assign to non-numeric index"), w); | |
f73dda09 JA |
543 | continue; |
544 | } | |
545 | ||
3185942a | 546 | if (array_p (var)) |
f73dda09 | 547 | { |
ac50fbac CR |
548 | ind = array_expand_index (var, w + 1, len); |
549 | /* negative subscripts to indexed arrays count back from end */ | |
550 | if (ind < 0) | |
551 | ind = array_max_index (array_cell (var)) + 1 + ind; | |
3185942a JA |
552 | if (ind < 0) |
553 | { | |
554 | err_badarraysub (w); | |
555 | continue; | |
556 | } | |
557 | ||
558 | last_ind = ind; | |
f73dda09 | 559 | } |
3185942a JA |
560 | else if (assoc_p (var)) |
561 | { | |
ac50fbac CR |
562 | /* This is not performed above, see expand_compound_array_assignment */ |
563 | w[len] = '\0'; /*[*/ | |
564 | akey = expand_assignment_string_to_string (w+1, 0); | |
565 | w[len] = ']'; | |
566 | /* And we need to expand the value also, see below */ | |
3185942a JA |
567 | if (akey == 0 || *akey == 0) |
568 | { | |
569 | err_badarraysub (w); | |
ac50fbac | 570 | FREE (akey); |
3185942a JA |
571 | continue; |
572 | } | |
573 | } | |
574 | ||
0628567a | 575 | /* XXX - changes for `+=' -- just accept the syntax. ksh93 doesn't do this */ |
95732b49 JA |
576 | if (w[len + 1] == '+' && w[len + 2] == '=') |
577 | { | |
0628567a | 578 | iflags |= ASS_APPEND; |
95732b49 JA |
579 | val = w + len + 3; |
580 | } | |
581 | else | |
ac50fbac | 582 | val = w + len + 2; |
f73dda09 | 583 | } |
3185942a JA |
584 | else if (assoc_p (var)) |
585 | { | |
ac50fbac | 586 | last_command_exit_value = 1; |
3185942a JA |
587 | report_error (_("%s: %s: must use subscript when assigning associative array"), var->name, w); |
588 | continue; | |
589 | } | |
f73dda09 JA |
590 | else /* No [ind]=value, just a stray `=' */ |
591 | { | |
592 | ind = last_ind; | |
593 | val = w; | |
594 | } | |
595 | ||
ac50fbac CR |
596 | free_val = 0; |
597 | /* See above; we need to expand the value here */ | |
598 | if (assoc_p (var)) | |
599 | { | |
600 | val = expand_assignment_string_to_string (val, 0); | |
01657c64 CR |
601 | if (val == 0) |
602 | { | |
603 | val = (char *)xmalloc (1); | |
604 | val[0] = '\0'; /* like do_assignment_internal */ | |
605 | } | |
ac50fbac CR |
606 | free_val = 1; |
607 | } | |
608 | ||
f73dda09 JA |
609 | if (integer_p (var)) |
610 | this_command_name = (char *)NULL; /* no command name for errors */ | |
3185942a | 611 | bind_array_var_internal (var, ind, akey, val, iflags); |
f73dda09 | 612 | last_ind++; |
ac50fbac CR |
613 | |
614 | if (free_val) | |
615 | free (val); | |
f73dda09 | 616 | } |
0628567a | 617 | } |
f73dda09 | 618 | |
0628567a JA |
619 | /* Perform a compound array assignment: VAR->name=( VALUE ). The |
620 | VALUE has already had the parentheses stripped. */ | |
621 | SHELL_VAR * | |
622 | assign_array_var_from_string (var, value, flags) | |
623 | SHELL_VAR *var; | |
624 | char *value; | |
625 | int flags; | |
626 | { | |
627 | WORD_LIST *nlist; | |
628 | ||
629 | if (value == 0) | |
630 | return var; | |
631 | ||
3185942a | 632 | nlist = expand_compound_array_assignment (var, value, flags); |
0628567a JA |
633 | assign_compound_array_list (var, nlist, flags); |
634 | ||
635 | if (nlist) | |
636 | dispose_words (nlist); | |
f73dda09 JA |
637 | return (var); |
638 | } | |
639 | ||
3185942a JA |
640 | /* Quote globbing chars and characters in $IFS before the `=' in an assignment |
641 | statement (usually a compound array assignment) to protect them from | |
642 | unwanted filename expansion or word splitting. */ | |
643 | static char * | |
644 | quote_assign (string) | |
645 | const char *string; | |
646 | { | |
647 | size_t slen; | |
648 | int saw_eq; | |
0001803f | 649 | char *temp, *t, *subs; |
3185942a | 650 | const char *s, *send; |
0001803f | 651 | int ss, se; |
3185942a JA |
652 | DECLARE_MBSTATE; |
653 | ||
654 | slen = strlen (string); | |
655 | send = string + slen; | |
656 | ||
657 | t = temp = (char *)xmalloc (slen * 2 + 1); | |
658 | saw_eq = 0; | |
659 | for (s = string; *s; ) | |
660 | { | |
661 | if (*s == '=') | |
662 | saw_eq = 1; | |
0001803f CR |
663 | if (saw_eq == 0 && *s == '[') /* looks like a subscript */ |
664 | { | |
665 | ss = s - string; | |
666 | se = skipsubscript (string, ss, 0); | |
667 | subs = substring (s, ss, se); | |
668 | *t++ = '\\'; | |
669 | strcpy (t, subs); | |
670 | t += se - ss; | |
671 | *t++ = '\\'; | |
672 | *t++ = ']'; | |
673 | s += se + 1; | |
674 | free (subs); | |
675 | continue; | |
676 | } | |
3185942a JA |
677 | if (saw_eq == 0 && (glob_char_p (s) || isifs (*s))) |
678 | *t++ = '\\'; | |
679 | ||
680 | COPY_CHAR_P (t, s, send); | |
681 | } | |
682 | *t = '\0'; | |
683 | return temp; | |
684 | } | |
685 | ||
f73dda09 | 686 | /* For each word in a compound array assignment, if the word looks like |
3185942a | 687 | [ind]=value, quote globbing chars and characters in $IFS before the `='. */ |
f73dda09 JA |
688 | static void |
689 | quote_array_assignment_chars (list) | |
690 | WORD_LIST *list; | |
691 | { | |
3185942a | 692 | char *nword; |
f73dda09 JA |
693 | WORD_LIST *l; |
694 | ||
695 | for (l = list; l; l = l->next) | |
696 | { | |
697 | if (l->word == 0 || l->word->word == 0 || l->word->word[0] == '\0') | |
698 | continue; /* should not happen, but just in case... */ | |
ac50fbac CR |
699 | /* Don't bother if it hasn't been recognized as an assignment or |
700 | doesn't look like [ind]=value */ | |
701 | if ((l->word->flags & W_ASSIGNMENT) == 0) | |
702 | continue; | |
0001803f | 703 | if (l->word->word[0] != '[' || mbschr (l->word->word, '=') == 0) /* ] */ |
f73dda09 | 704 | continue; |
ac50fbac | 705 | |
3185942a | 706 | nword = quote_assign (l->word->word); |
f73dda09 JA |
707 | free (l->word->word); |
708 | l->word->word = nword; | |
ac50fbac | 709 | l->word->flags |= W_NOGLOB; /* XXX - W_NOSPLIT also? */ |
f73dda09 JA |
710 | } |
711 | } | |
712 | ||
89a92869 | 713 | /* skipsubscript moved to subst.c to use private functions. 2009/02/24. */ |
f73dda09 JA |
714 | |
715 | /* This function is called with SUB pointing to just after the beginning | |
716 | `[' of an array subscript and removes the array element to which SUB | |
717 | expands from array VAR. A subscript of `*' or `@' unsets the array. */ | |
718 | int | |
719 | unbind_array_element (var, sub) | |
720 | SHELL_VAR *var; | |
721 | char *sub; | |
722 | { | |
723 | int len; | |
724 | arrayind_t ind; | |
3185942a | 725 | char *akey; |
f73dda09 JA |
726 | ARRAY_ELEMENT *ae; |
727 | ||
0001803f | 728 | len = skipsubscript (sub, 0, 0); |
f73dda09 JA |
729 | if (sub[len] != ']' || len == 0) |
730 | { | |
b80f6443 | 731 | builtin_error ("%s[%s: %s", var->name, sub, _(bash_badsub_errmsg)); |
f73dda09 JA |
732 | return -1; |
733 | } | |
734 | sub[len] = '\0'; | |
735 | ||
736 | if (ALL_ELEMENT_SUB (sub[0]) && sub[1] == 0) | |
737 | { | |
7117c2d2 | 738 | unbind_variable (var->name); |
f73dda09 JA |
739 | return (0); |
740 | } | |
3185942a JA |
741 | |
742 | if (assoc_p (var)) | |
f73dda09 | 743 | { |
3185942a JA |
744 | akey = expand_assignment_string_to_string (sub, 0); /* [ */ |
745 | if (akey == 0 || *akey == 0) | |
746 | { | |
747 | builtin_error ("[%s]: %s", sub, _(bash_badsub_errmsg)); | |
ac50fbac | 748 | FREE (akey); |
3185942a JA |
749 | return -1; |
750 | } | |
751 | assoc_remove (assoc_cell (var), akey); | |
495aee44 | 752 | free (akey); |
3185942a JA |
753 | } |
754 | else | |
755 | { | |
ac50fbac CR |
756 | ind = array_expand_index (var, sub, len+1); |
757 | /* negative subscripts to indexed arrays count back from end */ | |
758 | if (ind < 0) | |
759 | ind = array_max_index (array_cell (var)) + 1 + ind; | |
3185942a JA |
760 | if (ind < 0) |
761 | { | |
762 | builtin_error ("[%s]: %s", sub, _(bash_badsub_errmsg)); | |
763 | return -1; | |
764 | } | |
765 | ae = array_remove (array_cell (var), ind); | |
766 | if (ae) | |
767 | array_dispose_element (ae); | |
f73dda09 | 768 | } |
3185942a | 769 | |
f73dda09 JA |
770 | return 0; |
771 | } | |
772 | ||
773 | /* Format and output an array assignment in compound form VAR=(VALUES), | |
774 | suitable for re-use as input. */ | |
775 | void | |
776 | print_array_assignment (var, quoted) | |
777 | SHELL_VAR *var; | |
778 | int quoted; | |
779 | { | |
780 | char *vstr; | |
781 | ||
7117c2d2 | 782 | vstr = array_to_assign (array_cell (var), quoted); |
f73dda09 JA |
783 | |
784 | if (vstr == 0) | |
785 | printf ("%s=%s\n", var->name, quoted ? "'()'" : "()"); | |
786 | else | |
787 | { | |
788 | printf ("%s=%s\n", var->name, vstr); | |
789 | free (vstr); | |
790 | } | |
791 | } | |
792 | ||
3185942a JA |
793 | /* Format and output an associative array assignment in compound form |
794 | VAR=(VALUES), suitable for re-use as input. */ | |
795 | void | |
796 | print_assoc_assignment (var, quoted) | |
797 | SHELL_VAR *var; | |
798 | int quoted; | |
799 | { | |
800 | char *vstr; | |
801 | ||
802 | vstr = assoc_to_assign (assoc_cell (var), quoted); | |
803 | ||
804 | if (vstr == 0) | |
805 | printf ("%s=%s\n", var->name, quoted ? "'()'" : "()"); | |
806 | else | |
807 | { | |
808 | printf ("%s=%s\n", var->name, vstr); | |
809 | free (vstr); | |
810 | } | |
811 | } | |
812 | ||
f73dda09 JA |
813 | /***********************************************************************/ |
814 | /* */ | |
815 | /* Utility functions to manage arrays and their contents for expansion */ | |
816 | /* */ | |
817 | /***********************************************************************/ | |
818 | ||
819 | /* Return 1 if NAME is a properly-formed array reference v[sub]. */ | |
820 | int | |
821 | valid_array_reference (name) | |
822 | char *name; | |
823 | { | |
824 | char *t; | |
825 | int r, len; | |
826 | ||
0001803f | 827 | t = mbschr (name, '['); /* ] */ |
f73dda09 JA |
828 | if (t) |
829 | { | |
830 | *t = '\0'; | |
831 | r = legal_identifier (name); | |
832 | *t = '['; | |
833 | if (r == 0) | |
834 | return 0; | |
835 | /* Check for a properly-terminated non-blank subscript. */ | |
0001803f | 836 | len = skipsubscript (t, 0, 0); |
f73dda09 JA |
837 | if (t[len] != ']' || len == 1) |
838 | return 0; | |
839 | for (r = 1; r < len; r++) | |
840 | if (whitespace (t[r]) == 0) | |
841 | return 1; | |
842 | return 0; | |
843 | } | |
844 | return 0; | |
845 | } | |
846 | ||
847 | /* Expand the array index beginning at S and extending LEN characters. */ | |
848 | arrayind_t | |
ac50fbac CR |
849 | array_expand_index (var, s, len) |
850 | SHELL_VAR *var; | |
f73dda09 JA |
851 | char *s; |
852 | int len; | |
853 | { | |
854 | char *exp, *t; | |
855 | int expok; | |
856 | arrayind_t val; | |
857 | ||
858 | exp = (char *)xmalloc (len); | |
859 | strncpy (exp, s, len - 1); | |
860 | exp[len - 1] = '\0'; | |
0628567a | 861 | t = expand_arith_string (exp, 0); |
f73dda09 JA |
862 | this_command_name = (char *)NULL; |
863 | val = evalexp (t, &expok); | |
864 | free (t); | |
865 | free (exp); | |
866 | if (expok == 0) | |
867 | { | |
868 | last_command_exit_value = EXECUTION_FAILURE; | |
f1be666c JA |
869 | |
870 | top_level_cleanup (); | |
f73dda09 JA |
871 | jump_to_top_level (DISCARD); |
872 | } | |
873 | return val; | |
874 | } | |
875 | ||
876 | /* Return the name of the variable specified by S without any subscript. | |
877 | If SUBP is non-null, return a pointer to the start of the subscript | |
878 | in *SUBP. If LENP is non-null, the length of the subscript is returned | |
879 | in *LENP. This returns newly-allocated memory. */ | |
880 | char * | |
881 | array_variable_name (s, subp, lenp) | |
882 | char *s, **subp; | |
883 | int *lenp; | |
884 | { | |
885 | char *t, *ret; | |
886 | int ind, ni; | |
887 | ||
0001803f | 888 | t = mbschr (s, '['); |
f73dda09 | 889 | if (t == 0) |
b80f6443 JA |
890 | { |
891 | if (subp) | |
892 | *subp = t; | |
893 | if (lenp) | |
894 | *lenp = 0; | |
895 | return ((char *)NULL); | |
896 | } | |
f73dda09 | 897 | ind = t - s; |
0001803f | 898 | ni = skipsubscript (s, ind, 0); |
f73dda09 JA |
899 | if (ni <= ind + 1 || s[ni] != ']') |
900 | { | |
7117c2d2 | 901 | err_badarraysub (s); |
b80f6443 JA |
902 | if (subp) |
903 | *subp = t; | |
904 | if (lenp) | |
905 | *lenp = 0; | |
f73dda09 JA |
906 | return ((char *)NULL); |
907 | } | |
908 | ||
909 | *t = '\0'; | |
910 | ret = savestring (s); | |
911 | *t++ = '['; /* ] */ | |
912 | ||
913 | if (subp) | |
914 | *subp = t; | |
915 | if (lenp) | |
916 | *lenp = ni - ind; | |
917 | ||
918 | return ret; | |
919 | } | |
920 | ||
921 | /* Return the variable specified by S without any subscript. If SUBP is | |
922 | non-null, return a pointer to the start of the subscript in *SUBP. | |
923 | If LENP is non-null, the length of the subscript is returned in *LENP. */ | |
924 | SHELL_VAR * | |
925 | array_variable_part (s, subp, lenp) | |
926 | char *s, **subp; | |
927 | int *lenp; | |
928 | { | |
929 | char *t; | |
930 | SHELL_VAR *var; | |
931 | ||
932 | t = array_variable_name (s, subp, lenp); | |
933 | if (t == 0) | |
934 | return ((SHELL_VAR *)NULL); | |
935 | var = find_variable (t); | |
936 | ||
937 | free (t); | |
ac50fbac | 938 | #if 0 |
eb873671 | 939 | return (var == 0 || invisible_p (var)) ? (SHELL_VAR *)0 : var; |
ac50fbac CR |
940 | #else |
941 | return var; /* now return invisible variables; caller must handle */ | |
942 | #endif | |
f73dda09 JA |
943 | } |
944 | ||
495aee44 CR |
945 | #define INDEX_ERROR() \ |
946 | do \ | |
947 | { \ | |
948 | if (var) \ | |
949 | err_badarraysub (var->name); \ | |
950 | else \ | |
951 | { \ | |
952 | t[-1] = '\0'; \ | |
953 | err_badarraysub (s); \ | |
954 | t[-1] = '['; /* ] */\ | |
955 | } \ | |
956 | return ((char *)NULL); \ | |
957 | } \ | |
958 | while (0) | |
959 | ||
f73dda09 JA |
960 | /* Return a string containing the elements in the array and subscript |
961 | described by S. If the subscript is * or @, obeys quoting rules akin | |
7117c2d2 | 962 | to the expansion of $* and $@ including double quoting. If RTYPE |
3185942a JA |
963 | is non-null it gets 1 if the array reference is name[*], 2 if the |
964 | reference is name[@], and 0 otherwise. */ | |
f73dda09 | 965 | static char * |
495aee44 | 966 | array_value_internal (s, quoted, flags, rtype, indp) |
f73dda09 | 967 | char *s; |
495aee44 CR |
968 | int quoted, flags, *rtype; |
969 | arrayind_t *indp; | |
f73dda09 JA |
970 | { |
971 | int len; | |
972 | arrayind_t ind; | |
3185942a | 973 | char *akey; |
f73dda09 JA |
974 | char *retval, *t, *temp; |
975 | WORD_LIST *l; | |
976 | SHELL_VAR *var; | |
977 | ||
978 | var = array_variable_part (s, &t, &len); | |
979 | ||
7117c2d2 JA |
980 | /* Expand the index, even if the variable doesn't exist, in case side |
981 | effects are needed, like ${w[i++]} where w is unset. */ | |
982 | #if 0 | |
f73dda09 JA |
983 | if (var == 0) |
984 | return (char *)NULL; | |
7117c2d2 | 985 | #endif |
f73dda09 | 986 | |
b80f6443 JA |
987 | if (len == 0) |
988 | return ((char *)NULL); /* error message already printed */ | |
989 | ||
f73dda09 | 990 | /* [ */ |
ac50fbac | 991 | akey = 0; |
f73dda09 JA |
992 | if (ALL_ELEMENT_SUB (t[0]) && t[1] == ']') |
993 | { | |
7117c2d2 | 994 | if (rtype) |
f1be666c | 995 | *rtype = (t[0] == '*') ? 1 : 2; |
495aee44 | 996 | if ((flags & AV_ALLOWALL) == 0) |
f73dda09 | 997 | { |
7117c2d2 | 998 | err_badarraysub (s); |
f73dda09 JA |
999 | return ((char *)NULL); |
1000 | } | |
495aee44 | 1001 | else if (var == 0 || value_cell (var) == 0) /* XXX - check for invisible_p(var) ? */ |
7117c2d2 | 1002 | return ((char *)NULL); |
3185942a | 1003 | else if (array_p (var) == 0 && assoc_p (var) == 0) |
7117c2d2 | 1004 | l = add_string_to_list (value_cell (var), (WORD_LIST *)NULL); |
3185942a JA |
1005 | else if (assoc_p (var)) |
1006 | { | |
1007 | l = assoc_to_word_list (assoc_cell (var)); | |
1008 | if (l == (WORD_LIST *)NULL) | |
1009 | return ((char *)NULL); | |
1010 | } | |
f73dda09 JA |
1011 | else |
1012 | { | |
1013 | l = array_to_word_list (array_cell (var)); | |
1014 | if (l == (WORD_LIST *)NULL) | |
1015 | return ((char *) NULL); | |
1016 | } | |
1017 | ||
1018 | if (t[0] == '*' && (quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES))) | |
1019 | { | |
1020 | temp = string_list_dollar_star (l); | |
ac50fbac | 1021 | retval = quote_string (temp); /* XXX - leak here */ |
f73dda09 JA |
1022 | free (temp); |
1023 | } | |
1024 | else /* ${name[@]} or unquoted ${name[*]} */ | |
ac50fbac | 1025 | retval = string_list_dollar_at (l, quoted); /* XXX - leak here */ |
f73dda09 JA |
1026 | |
1027 | dispose_words (l); | |
1028 | } | |
1029 | else | |
1030 | { | |
7117c2d2 JA |
1031 | if (rtype) |
1032 | *rtype = 0; | |
3185942a | 1033 | if (var == 0 || array_p (var) || assoc_p (var) == 0) |
f73dda09 | 1034 | { |
495aee44 | 1035 | if ((flags & AV_USEIND) == 0 || indp == 0) |
7117c2d2 | 1036 | { |
ac50fbac | 1037 | ind = array_expand_index (var, t, len); |
495aee44 | 1038 | if (ind < 0) |
3185942a | 1039 | { |
495aee44 CR |
1040 | /* negative subscripts to indexed arrays count back from end */ |
1041 | if (var && array_p (var)) | |
1042 | ind = array_max_index (array_cell (var)) + 1 + ind; | |
1043 | if (ind < 0) | |
1044 | INDEX_ERROR(); | |
3185942a | 1045 | } |
495aee44 CR |
1046 | if (indp) |
1047 | *indp = ind; | |
7117c2d2 | 1048 | } |
495aee44 CR |
1049 | else if (indp) |
1050 | ind = *indp; | |
f73dda09 | 1051 | } |
3185942a JA |
1052 | else if (assoc_p (var)) |
1053 | { | |
1054 | t[len - 1] = '\0'; | |
1055 | akey = expand_assignment_string_to_string (t, 0); /* [ */ | |
1056 | t[len - 1] = ']'; | |
1057 | if (akey == 0 || *akey == 0) | |
ac50fbac CR |
1058 | { |
1059 | FREE (akey); | |
1060 | INDEX_ERROR(); | |
1061 | } | |
3185942a JA |
1062 | } |
1063 | ||
495aee44 | 1064 | if (var == 0 || value_cell (var) == 0) /* XXX - check invisible_p(var) ? */ |
ac50fbac CR |
1065 | { |
1066 | FREE (akey); | |
1067 | return ((char *)NULL); | |
1068 | } | |
3185942a | 1069 | if (array_p (var) == 0 && assoc_p (var) == 0) |
7117c2d2 | 1070 | return (ind == 0 ? value_cell (var) : (char *)NULL); |
3185942a | 1071 | else if (assoc_p (var)) |
495aee44 CR |
1072 | { |
1073 | retval = assoc_reference (assoc_cell (var), akey); | |
1074 | free (akey); | |
1075 | } | |
3185942a JA |
1076 | else |
1077 | retval = array_reference (array_cell (var), ind); | |
f73dda09 JA |
1078 | } |
1079 | ||
1080 | return retval; | |
1081 | } | |
1082 | ||
1083 | /* Return a string containing the elements described by the array and | |
1084 | subscript contained in S, obeying quoting for subscripts * and @. */ | |
1085 | char * | |
495aee44 | 1086 | array_value (s, quoted, flags, rtype, indp) |
f73dda09 | 1087 | char *s; |
495aee44 CR |
1088 | int quoted, flags, *rtype; |
1089 | arrayind_t *indp; | |
f73dda09 | 1090 | { |
495aee44 | 1091 | return (array_value_internal (s, quoted, flags|AV_ALLOWALL, rtype, indp)); |
f73dda09 JA |
1092 | } |
1093 | ||
1094 | /* Return the value of the array indexing expression S as a single string. | |
495aee44 CR |
1095 | If (FLAGS & AV_ALLOWALL) is 0, do not allow `@' and `*' subscripts. This |
1096 | is used by other parts of the shell such as the arithmetic expression | |
1097 | evaluator in expr.c. */ | |
f73dda09 | 1098 | char * |
495aee44 | 1099 | get_array_value (s, flags, rtype, indp) |
f73dda09 | 1100 | char *s; |
495aee44 CR |
1101 | int flags, *rtype; |
1102 | arrayind_t *indp; | |
f73dda09 | 1103 | { |
495aee44 | 1104 | return (array_value_internal (s, 0, flags, rtype, indp)); |
f73dda09 JA |
1105 | } |
1106 | ||
b80f6443 JA |
1107 | char * |
1108 | array_keys (s, quoted) | |
1109 | char *s; | |
1110 | int quoted; | |
1111 | { | |
1112 | int len; | |
1113 | char *retval, *t, *temp; | |
1114 | WORD_LIST *l; | |
1115 | SHELL_VAR *var; | |
1116 | ||
1117 | var = array_variable_part (s, &t, &len); | |
1118 | ||
1119 | /* [ */ | |
1120 | if (var == 0 || ALL_ELEMENT_SUB (t[0]) == 0 || t[1] != ']') | |
1121 | return (char *)NULL; | |
1122 | ||
495aee44 CR |
1123 | if (var_isset (var) == 0 || invisible_p (var)) |
1124 | return (char *)NULL; | |
1125 | ||
3185942a | 1126 | if (array_p (var) == 0 && assoc_p (var) == 0) |
b80f6443 | 1127 | l = add_string_to_list ("0", (WORD_LIST *)NULL); |
3185942a JA |
1128 | else if (assoc_p (var)) |
1129 | l = assoc_keys_to_word_list (assoc_cell (var)); | |
b80f6443 | 1130 | else |
3185942a JA |
1131 | l = array_keys_to_word_list (array_cell (var)); |
1132 | if (l == (WORD_LIST *)NULL) | |
1133 | return ((char *) NULL); | |
b80f6443 JA |
1134 | |
1135 | if (t[0] == '*' && (quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES))) | |
1136 | { | |
1137 | temp = string_list_dollar_star (l); | |
1138 | retval = quote_string (temp); | |
1139 | free (temp); | |
1140 | } | |
1141 | else /* ${!name[@]} or unquoted ${!name[*]} */ | |
1142 | retval = string_list_dollar_at (l, quoted); | |
1143 | ||
1144 | dispose_words (l); | |
1145 | return retval; | |
1146 | } | |
f73dda09 | 1147 | #endif /* ARRAY_VARS */ |