1 /* arrayfunc.c -- High-level array functions used by other parts of the shell. */
3 /* Copyright (C) 2001-2011 Free Software Foundation, Inc.
5 This file is part of GNU Bash, the Bourne Again SHell.
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.
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.
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/>.
23 #if defined (ARRAY_VARS)
25 #if defined (HAVE_UNISTD_H)
37 #include "builtins/common.h"
39 extern char *this_command_name
;
40 extern int last_command_exit_value
;
41 extern int array_needs_making
;
43 static SHELL_VAR
*bind_array_var_internal
__P((SHELL_VAR
*, arrayind_t
, char *, char *, int));
44 static SHELL_VAR
*assign_array_element_internal
__P((SHELL_VAR
*, char *, char *, char *, int, char *, int));
46 static char *quote_assign
__P((const char *));
47 static void quote_array_assignment_chars
__P((WORD_LIST
*));
48 static char *array_value_internal
__P((char *, int, int, int *, arrayind_t
*));
50 /* Standard error message to use when encountering an invalid array subscript */
51 const char * const bash_badsub_errmsg
= N_("bad array subscript");
53 /* **************************************************************** */
55 /* Functions to manipulate array variables and perform assignments */
57 /* **************************************************************** */
59 /* Convert a shell variable to an array variable. The original value is
62 convert_var_to_array (var
)
68 oldval
= value_cell (var
);
69 array
= array_create ();
71 array_insert (array
, 0, oldval
);
73 FREE (value_cell (var
));
74 var_setarray (var
, array
);
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
;
80 INVALIDATE_EXPORTSTR (var
);
84 VSETATTR (var
, att_array
);
85 VUNSETATTR (var
, att_invisible
);
90 /* Convert a shell variable to an array variable. The original value is
93 convert_var_to_assoc (var
)
99 oldval
= value_cell (var
);
100 hash
= assoc_create (0);
102 assoc_insert (hash
, savestring ("0"), oldval
);
104 FREE (value_cell (var
));
105 var_setassoc (var
, hash
);
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
;
111 INVALIDATE_EXPORTSTR (var
);
112 if (exported_p (var
))
113 array_needs_making
++;
115 VSETATTR (var
, att_assoc
);
116 VUNSETATTR (var
, att_invisible
);
122 make_array_variable_value (entry
, ind
, key
, value
, flags
)
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
)
136 dentry
= (SHELL_VAR
*)xmalloc (sizeof (SHELL_VAR
));
137 dentry
->name
= savestring (entry
->name
);
139 newval
= assoc_reference (assoc_cell (entry
), key
);
141 newval
= array_reference (array_cell (entry
), ind
);
143 dentry
->value
= savestring (newval
);
146 dentry
->value
= (char *)xmalloc (1);
147 dentry
->value
[0] = '\0';
149 dentry
->exportstr
= 0;
150 dentry
->attributes
= entry
->attributes
& ~(att_array
|att_assoc
|att_exported
);
151 /* Leave the rest of the members uninitialized; the code doesn't look
153 newval
= make_variable_value (dentry
, value
, flags
);
154 dispose_variable (dentry
);
157 newval
= make_variable_value (entry
, value
, flags
);
163 bind_array_var_internal (entry
, ind
, key
, value
, flags
)
172 newval
= make_array_variable_value (entry
, ind
, key
, value
, flags
);
174 if (entry
->assign_func
)
175 (*entry
->assign_func
) (entry
, newval
, ind
, key
);
176 else if (assoc_p (entry
))
177 assoc_insert (assoc_cell (entry
), key
, newval
);
179 array_insert (array_cell (entry
), ind
, newval
);
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].
190 If NAME does not exist, just create an array variable, no matter what
191 IND's value may be. */
193 bind_array_variable (name
, ind
, value
, flags
)
201 entry
= find_shell_variable (name
);
203 if (entry
== (SHELL_VAR
*) 0)
204 entry
= make_new_array_variable (name
);
205 else if (readonly_p (entry
) || noassign_p (entry
))
207 if (readonly_p (entry
))
211 else if (array_p (entry
) == 0)
212 entry
= convert_var_to_array (entry
);
214 /* ENTRY is an array variable, and ARRAY points to the value. */
215 return (bind_array_var_internal (entry
, ind
, 0, value
, flags
));
219 bind_array_element (entry
, ind
, value
, flags
)
225 return (bind_array_var_internal (entry
, ind
, 0, value
, flags
));
229 bind_assoc_variable (entry
, name
, key
, value
, flags
)
239 if (readonly_p (entry
) || noassign_p (entry
))
241 if (readonly_p (entry
))
246 return (bind_array_var_internal (entry
, 0, key
, value
, flags
));
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(). */
252 assign_array_element (name
, value
, flags
)
260 vname
= array_variable_name (name
, &sub
, &sublen
);
263 return ((SHELL_VAR
*)NULL
);
265 if ((ALL_ELEMENT_SUB (sub
[0]) && sub
[1] == ']') || (sublen
<= 1))
268 err_badarraysub (name
);
269 return ((SHELL_VAR
*)NULL
);
272 entry
= find_variable (vname
);
273 entry
= assign_array_element_internal (entry
, name
, vname
, sub
, sublen
, value
, flags
);
280 assign_array_element_internal (entry
, name
, vname
, sub
, sublen
, value
, flags
)
282 char *name
; /* only used for error messages */
292 if (entry
&& assoc_p (entry
))
294 sub
[sublen
-1] = '\0';
295 akey
= expand_assignment_string_to_string (sub
, 0); /* [ */
297 if (akey
== 0 || *akey
== 0)
299 err_badarraysub (name
);
301 return ((SHELL_VAR
*)NULL
);
303 entry
= bind_assoc_variable (entry
, vname
, akey
, value
, flags
);
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
;
313 err_badarraysub (name
);
314 return ((SHELL_VAR
*)NULL
);
316 entry
= bind_array_variable (vname
, ind
, value
, flags
);
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,
324 convert it to an indexed array. If FLAGS&1 is non-zero, an existing
325 variable is checked for the readonly or noassign attribute in preparation
326 for assignment (e.g., by the `read' builtin). If FLAGS&2 is non-zero, we
327 create an associative array. */
329 find_or_make_array_variable (name
, flags
)
335 var
= find_variable (name
);
338 /* See if we have a nameref pointing to a variable that hasn't been
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
));
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
)))
349 if (readonly_p (var
))
351 return ((SHELL_VAR
*)NULL
);
353 else if ((flags
& 2) && array_p (var
))
355 last_command_exit_value
= 1;
356 report_error (_("%s: cannot convert indexed to associative array"), name
);
357 return ((SHELL_VAR
*)NULL
);
359 else if (array_p (var
) == 0 && assoc_p (var
) == 0)
360 var
= convert_var_to_array (var
);
365 /* Perform a compound assignment statement for array NAME, where VALUE is
366 the text between the parens: NAME=( VALUE ) */
368 assign_array_from_string (name
, value
, flags
)
376 if (flags
& ASS_MKASSOC
)
379 var
= find_or_make_array_variable (name
, vflags
);
381 return ((SHELL_VAR
*)NULL
);
383 return (assign_array_var_from_string (var
, value
, flags
));
386 /* Sequentially assign the indices of indexed array variable VAR from the
389 assign_array_var_from_word_list (var
, list
, flags
)
394 register arrayind_t i
;
395 register WORD_LIST
*l
;
398 a
= array_cell (var
);
399 i
= (flags
& ASS_APPEND
) ? array_max_index (a
) + 1 : 0;
401 for (l
= list
; l
; l
= l
->next
, i
++)
402 if (var
->assign_func
)
403 (*var
->assign_func
) (var
, l
->word
->word
, i
, 0);
405 array_insert (a
, i
, l
->word
->word
);
410 expand_compound_array_assignment (var
, value
, flags
)
415 WORD_LIST
*list
, *nlist
;
416 WORD_LIST
*hd
, *tl
, *t
, *n
;
420 /* This condition is true when invoked from the declare builtin with a
422 declare -a d='([1]="" [2]="bdef" [5]="hello world" "test")' */
423 if (*value
== '(') /*)*/
426 val
= extract_array_assignment_list (value
, &ni
);
428 return (WORD_LIST
*)NULL
;
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). */
437 list
= parse_string_to_word_list (val
, 1, "array assign");
439 if (var
&& assoc_p (var
))
446 /* If we're using [subscript]=value, we need to quote each [ and ] to
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). */
451 quote_array_assignment_chars (list
);
453 /* Now that we've split it, perform the shell expansions on each
455 nlist
= list
? expand_words_no_vars (list
) : (WORD_LIST
*)NULL
;
457 dispose_words (list
);
465 /* Callers ensure that VAR is not NULL */
467 assign_compound_array_list (var
, nlist
, flags
)
475 char *w
, *val
, *nval
;
476 int len
, iflags
, free_val
;
477 arrayind_t ind
, last_ind
;
480 a
= (var
&& array_p (var
)) ? array_cell (var
) : (ARRAY
*)0;
481 h
= (var
&& assoc_p (var
)) ? assoc_cell (var
) : (HASH_TABLE
*)0;
486 /* Now that we are ready to assign values to the array, kill the existing
488 if ((flags
& ASS_APPEND
) == 0)
490 if (a
&& array_p (var
))
492 else if (h
&& assoc_p (var
))
496 last_ind
= (a
&& (flags
& ASS_APPEND
)) ? array_max_index (a
) + 1 : 0;
498 for (list
= nlist
; list
; list
= list
->next
)
501 w
= list
->word
->word
;
503 /* We have a word of the form [ind]=value */
504 if ((list
->word
->flags
& W_ASSIGNMENT
) && w
[0] == '[')
506 /* Don't have to handle embedded quotes specially any more, since
507 associative array subscripts have not been expanded yet (see
509 len
= skipsubscript (w
, 0, 0);
511 /* XXX - changes for `+=' */
512 if (w
[len
] != ']' || (w
[len
+1] != '=' && (w
[len
+1] != '+' || w
[len
+2] != '=')))
519 nval
= make_variable_value (var
, w
, flags
);
520 if (var
->assign_func
)
521 (*var
->assign_func
) (var
, nval
, last_ind
, 0);
523 array_insert (a
, last_ind
, nval
);
535 if (ALL_ELEMENT_SUB (w
[1]) && len
== 2)
537 last_command_exit_value
= 1;
539 report_error (_("%s: invalid associative array key"), w
);
541 report_error (_("%s: cannot assign to non-numeric index"), w
);
547 ind
= array_expand_index (var
, w
+ 1, len
);
548 /* negative subscripts to indexed arrays count back from end */
550 ind
= array_max_index (array_cell (var
)) + 1 + ind
;
559 else if (assoc_p (var
))
561 /* This is not performed above, see expand_compound_array_assignment */
563 akey
= expand_assignment_string_to_string (w
+1, 0);
565 /* And we need to expand the value also, see below */
566 if (akey
== 0 || *akey
== 0)
574 /* XXX - changes for `+=' -- just accept the syntax. ksh93 doesn't do this */
575 if (w
[len
+ 1] == '+' && w
[len
+ 2] == '=')
577 iflags
|= ASS_APPEND
;
583 else if (assoc_p (var
))
585 last_command_exit_value
= 1;
586 report_error (_("%s: %s: must use subscript when assigning associative array"), var
->name
, w
);
589 else /* No [ind]=value, just a stray `=' */
596 /* See above; we need to expand the value here */
599 val
= expand_assignment_string_to_string (val
, 0);
604 this_command_name
= (char *)NULL
; /* no command name for errors */
605 bind_array_var_internal (var
, ind
, akey
, val
, iflags
);
613 /* Perform a compound array assignment: VAR->name=( VALUE ). The
614 VALUE has already had the parentheses stripped. */
616 assign_array_var_from_string (var
, value
, flags
)
626 nlist
= expand_compound_array_assignment (var
, value
, flags
);
627 assign_compound_array_list (var
, nlist
, flags
);
630 dispose_words (nlist
);
634 /* Quote globbing chars and characters in $IFS before the `=' in an assignment
635 statement (usually a compound array assignment) to protect them from
636 unwanted filename expansion or word splitting. */
638 quote_assign (string
)
643 char *temp
, *t
, *subs
;
644 const char *s
, *send
;
648 slen
= strlen (string
);
649 send
= string
+ slen
;
651 t
= temp
= (char *)xmalloc (slen
* 2 + 1);
653 for (s
= string
; *s
; )
657 if (saw_eq
== 0 && *s
== '[') /* looks like a subscript */
660 se
= skipsubscript (string
, ss
, 0);
661 subs
= substring (s
, ss
, se
);
671 if (saw_eq
== 0 && (glob_char_p (s
) || isifs (*s
)))
674 COPY_CHAR_P (t
, s
, send
);
680 /* For each word in a compound array assignment, if the word looks like
681 [ind]=value, quote globbing chars and characters in $IFS before the `='. */
683 quote_array_assignment_chars (list
)
689 for (l
= list
; l
; l
= l
->next
)
691 if (l
->word
== 0 || l
->word
->word
== 0 || l
->word
->word
[0] == '\0')
692 continue; /* should not happen, but just in case... */
693 /* Don't bother if it hasn't been recognized as an assignment or
694 doesn't look like [ind]=value */
695 if ((l
->word
->flags
& W_ASSIGNMENT
) == 0)
697 if (l
->word
->word
[0] != '[' || mbschr (l
->word
->word
, '=') == 0) /* ] */
700 nword
= quote_assign (l
->word
->word
);
701 free (l
->word
->word
);
702 l
->word
->word
= nword
;
703 l
->word
->flags
|= W_NOGLOB
; /* XXX - W_NOSPLIT also? */
707 /* skipsubscript moved to subst.c to use private functions. 2009/02/24. */
709 /* This function is called with SUB pointing to just after the beginning
710 `[' of an array subscript and removes the array element to which SUB
711 expands from array VAR. A subscript of `*' or `@' unsets the array. */
713 unbind_array_element (var
, sub
)
722 len
= skipsubscript (sub
, 0, 0);
723 if (sub
[len
] != ']' || len
== 0)
725 builtin_error ("%s[%s: %s", var
->name
, sub
, _(bash_badsub_errmsg
));
730 if (ALL_ELEMENT_SUB (sub
[0]) && sub
[1] == 0)
732 unbind_variable (var
->name
);
738 akey
= expand_assignment_string_to_string (sub
, 0); /* [ */
739 if (akey
== 0 || *akey
== 0)
741 builtin_error ("[%s]: %s", sub
, _(bash_badsub_errmsg
));
745 assoc_remove (assoc_cell (var
), akey
);
750 ind
= array_expand_index (var
, sub
, len
+1);
751 /* negative subscripts to indexed arrays count back from end */
753 ind
= array_max_index (array_cell (var
)) + 1 + ind
;
756 builtin_error ("[%s]: %s", sub
, _(bash_badsub_errmsg
));
759 ae
= array_remove (array_cell (var
), ind
);
761 array_dispose_element (ae
);
767 /* Format and output an array assignment in compound form VAR=(VALUES),
768 suitable for re-use as input. */
770 print_array_assignment (var
, quoted
)
776 vstr
= array_to_assign (array_cell (var
), quoted
);
779 printf ("%s=%s\n", var
->name
, quoted
? "'()'" : "()");
782 printf ("%s=%s\n", var
->name
, vstr
);
787 /* Format and output an associative array assignment in compound form
788 VAR=(VALUES), suitable for re-use as input. */
790 print_assoc_assignment (var
, quoted
)
796 vstr
= assoc_to_assign (assoc_cell (var
), quoted
);
799 printf ("%s=%s\n", var
->name
, quoted
? "'()'" : "()");
802 printf ("%s=%s\n", var
->name
, vstr
);
807 /***********************************************************************/
809 /* Utility functions to manage arrays and their contents for expansion */
811 /***********************************************************************/
813 /* Return 1 if NAME is a properly-formed array reference v[sub]. */
815 valid_array_reference (name
)
821 t
= mbschr (name
, '['); /* ] */
825 r
= legal_identifier (name
);
829 /* Check for a properly-terminated non-blank subscript. */
830 len
= skipsubscript (t
, 0, 0);
831 if (t
[len
] != ']' || len
== 1)
833 for (r
= 1; r
< len
; r
++)
834 if (whitespace (t
[r
]) == 0)
841 /* Expand the array index beginning at S and extending LEN characters. */
843 array_expand_index (var
, s
, len
)
852 exp
= (char *)xmalloc (len
);
853 strncpy (exp
, s
, len
- 1);
855 t
= expand_arith_string (exp
, 0);
856 this_command_name
= (char *)NULL
;
857 val
= evalexp (t
, &expok
);
862 last_command_exit_value
= EXECUTION_FAILURE
;
864 top_level_cleanup ();
865 jump_to_top_level (DISCARD
);
870 /* Return the name of the variable specified by S without any subscript.
871 If SUBP is non-null, return a pointer to the start of the subscript
872 in *SUBP. If LENP is non-null, the length of the subscript is returned
873 in *LENP. This returns newly-allocated memory. */
875 array_variable_name (s
, subp
, lenp
)
889 return ((char *)NULL
);
892 ni
= skipsubscript (s
, ind
, 0);
893 if (ni
<= ind
+ 1 || s
[ni
] != ']')
900 return ((char *)NULL
);
904 ret
= savestring (s
);
915 /* Return the variable specified by S without any subscript. If SUBP is
916 non-null, return a pointer to the start of the subscript in *SUBP.
917 If LENP is non-null, the length of the subscript is returned in *LENP. */
919 array_variable_part (s
, subp
, lenp
)
926 t
= array_variable_name (s
, subp
, lenp
);
928 return ((SHELL_VAR
*)NULL
);
929 var
= find_variable (t
);
933 return (var
== 0 || invisible_p (var
)) ? (SHELL_VAR
*)0 : var
;
935 return var
; /* now return invisible variables; caller must handle */
939 #define INDEX_ERROR() \
943 err_badarraysub (var->name); \
947 err_badarraysub (s); \
948 t[-1] = '['; /* ] */\
950 return ((char *)NULL); \
954 /* Return a string containing the elements in the array and subscript
955 described by S. If the subscript is * or @, obeys quoting rules akin
956 to the expansion of $* and $@ including double quoting. If RTYPE
957 is non-null it gets 1 if the array reference is name[*], 2 if the
958 reference is name[@], and 0 otherwise. */
960 array_value_internal (s
, quoted
, flags
, rtype
, indp
)
962 int quoted
, flags
, *rtype
;
968 char *retval
, *t
, *temp
;
972 var
= array_variable_part (s
, &t
, &len
);
974 /* Expand the index, even if the variable doesn't exist, in case side
975 effects are needed, like ${w[i++]} where w is unset. */
982 return ((char *)NULL
); /* error message already printed */
986 if (ALL_ELEMENT_SUB (t
[0]) && t
[1] == ']')
989 *rtype
= (t
[0] == '*') ? 1 : 2;
990 if ((flags
& AV_ALLOWALL
) == 0)
993 return ((char *)NULL
);
995 else if (var
== 0 || value_cell (var
) == 0) /* XXX - check for invisible_p(var) ? */
996 return ((char *)NULL
);
997 else if (array_p (var
) == 0 && assoc_p (var
) == 0)
998 l
= add_string_to_list (value_cell (var
), (WORD_LIST
*)NULL
);
999 else if (assoc_p (var
))
1001 l
= assoc_to_word_list (assoc_cell (var
));
1002 if (l
== (WORD_LIST
*)NULL
)
1003 return ((char *)NULL
);
1007 l
= array_to_word_list (array_cell (var
));
1008 if (l
== (WORD_LIST
*)NULL
)
1009 return ((char *) NULL
);
1012 if (t
[0] == '*' && (quoted
& (Q_HERE_DOCUMENT
|Q_DOUBLE_QUOTES
)))
1014 temp
= string_list_dollar_star (l
);
1015 retval
= quote_string (temp
); /* XXX - leak here */
1018 else /* ${name[@]} or unquoted ${name[*]} */
1019 retval
= string_list_dollar_at (l
, quoted
); /* XXX - leak here */
1027 if (var
== 0 || array_p (var
) || assoc_p (var
) == 0)
1029 if ((flags
& AV_USEIND
) == 0 || indp
== 0)
1031 ind
= array_expand_index (var
, t
, len
);
1034 /* negative subscripts to indexed arrays count back from end */
1035 if (var
&& array_p (var
))
1036 ind
= array_max_index (array_cell (var
)) + 1 + ind
;
1046 else if (assoc_p (var
))
1049 akey
= expand_assignment_string_to_string (t
, 0); /* [ */
1051 if (akey
== 0 || *akey
== 0)
1058 if (var
== 0 || value_cell (var
) == 0) /* XXX - check invisible_p(var) ? */
1061 return ((char *)NULL
);
1063 if (array_p (var
) == 0 && assoc_p (var
) == 0)
1064 return (ind
== 0 ? value_cell (var
) : (char *)NULL
);
1065 else if (assoc_p (var
))
1067 retval
= assoc_reference (assoc_cell (var
), akey
);
1071 retval
= array_reference (array_cell (var
), ind
);
1077 /* Return a string containing the elements described by the array and
1078 subscript contained in S, obeying quoting for subscripts * and @. */
1080 array_value (s
, quoted
, flags
, rtype
, indp
)
1082 int quoted
, flags
, *rtype
;
1085 return (array_value_internal (s
, quoted
, flags
|AV_ALLOWALL
, rtype
, indp
));
1088 /* Return the value of the array indexing expression S as a single string.
1089 If (FLAGS & AV_ALLOWALL) is 0, do not allow `@' and `*' subscripts. This
1090 is used by other parts of the shell such as the arithmetic expression
1091 evaluator in expr.c. */
1093 get_array_value (s
, flags
, rtype
, indp
)
1098 return (array_value_internal (s
, 0, flags
, rtype
, indp
));
1102 array_keys (s
, quoted
)
1107 char *retval
, *t
, *temp
;
1111 var
= array_variable_part (s
, &t
, &len
);
1114 if (var
== 0 || ALL_ELEMENT_SUB (t
[0]) == 0 || t
[1] != ']')
1115 return (char *)NULL
;
1117 if (var_isset (var
) == 0 || invisible_p (var
))
1118 return (char *)NULL
;
1120 if (array_p (var
) == 0 && assoc_p (var
) == 0)
1121 l
= add_string_to_list ("0", (WORD_LIST
*)NULL
);
1122 else if (assoc_p (var
))
1123 l
= assoc_keys_to_word_list (assoc_cell (var
));
1125 l
= array_keys_to_word_list (array_cell (var
));
1126 if (l
== (WORD_LIST
*)NULL
)
1127 return ((char *) NULL
);
1129 if (t
[0] == '*' && (quoted
& (Q_HERE_DOCUMENT
|Q_DOUBLE_QUOTES
)))
1131 temp
= string_list_dollar_star (l
);
1132 retval
= quote_string (temp
);
1135 else /* ${!name[@]} or unquoted ${!name[*]} */
1136 retval
= string_list_dollar_at (l
, quoted
);
1141 #endif /* ARRAY_VARS */