BASH PATCH REPORT ================= Bash-Release: 5.1 Patch-ID: bash51-004 Bug-Reported-by: oguzismailuysal@gmail.com Bug-Reference-ID: Bug-Reference-URL: https://lists.gnu.org/archive/html/bug-bash/2020-12/msg00039.html Bug-Description: If a key-value compound array assignment to an associative array is supplied as an assignment statement argument to the `declare' command that declares the array, the assignment doesn't perform the correct word expansions. This patch makes key-value assignment and subscript assignment perform the same expansions when they're supplied as an argument to `declare'. Patch (apply with `patch -p0'): --- a/arrayfunc.c +++ b/arrayfunc.c @@ -597,6 +597,27 @@ assign_assoc_from_kvlist (var, nlist, h, free (aval); } } + +/* Return non-zero if L appears to be a key-value pair associative array + compound assignment. */ +int +kvpair_assignment_p (l) + WORD_LIST *l; +{ + return (l && (l->word->flags & W_ASSIGNMENT) == 0 && l->word->word[0] != '['); /*]*/ +} + +char * +expand_and_quote_kvpair_word (w) + char *w; +{ + char *t, *r; + + t = w ? expand_assignment_string_to_string (w, 0) : 0; + r = sh_single_quote (t ? t : ""); + free (t); + return r; +} #endif /* Callers ensure that VAR is not NULL. Associative array assignments have not @@ -640,7 +661,7 @@ assign_compound_array_list (var, nlist, last_ind = (a && (flags & ASS_APPEND)) ? array_max_index (a) + 1 : 0; #if ASSOC_KVPAIR_ASSIGNMENT - if (assoc_p (var) && nlist && (nlist->word->flags & W_ASSIGNMENT) == 0 && nlist->word->word[0] != '[') /*]*/ + if (assoc_p (var) && kvpair_assignment_p (nlist)) { iflags = flags & ~ASS_APPEND; assign_assoc_from_kvlist (var, nlist, nhash, iflags); --- a/arrayfunc.h +++ b/arrayfunc.h @@ -67,6 +67,9 @@ extern SHELL_VAR *assign_array_var_from_ extern char *expand_and_quote_assoc_word PARAMS((char *, int)); extern void quote_compound_array_list PARAMS((WORD_LIST *, int)); +extern int kvpair_assignment_p PARAMS((WORD_LIST *)); +extern char *expand_and_quote_kvpair_word PARAMS((char *)); + extern int unbind_array_element PARAMS((SHELL_VAR *, char *, int)); extern int skipsubscript PARAMS((const char *, int, int)); --- a/subst.c +++ b/subst.c @@ -11604,6 +11604,7 @@ expand_oneword (value, flags) { WORD_LIST *l, *nl; char *t; + int kvpair; if (flags == 0) { @@ -11618,11 +11619,21 @@ expand_oneword (value, flags) { /* Associative array */ l = parse_string_to_word_list (value, 1, "array assign"); +#if ASSOC_KVPAIR_ASSIGNMENT + kvpair = kvpair_assignment_p (l); +#endif + /* For associative arrays, with their arbitrary subscripts, we have to expand and quote in one step so we don't have to search for the closing right bracket more than once. */ for (nl = l; nl; nl = nl->next) { +#if ASSOC_KVPAIR_ASSIGNMENT + if (kvpair) + /* keys and values undergo the same set of expansions */ + t = expand_and_quote_kvpair_word (nl->word->word); + else +#endif if ((nl->word->flags & W_ASSIGNMENT) == 0) t = sh_single_quote (nl->word->word ? nl->word->word : ""); else --- a/patchlevel.h +++ b/patchlevel.h @@ -25,6 +25,6 @@ regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh looks for to find the patch level (for the sccs version string). */ -#define PATCHLEVEL 3 +#define PATCHLEVEL 4 #endif /* _PATCHLEVEL_H_ */