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