Hi, it looks like these expansions still aren't quite being delimited
by IFS consistently. Probably strangest of these is a4 where `$*`
doesn't agree with `${a[*]}`, and a3 vs. a4 where quoting modifies the
result. I would think bash should look like the ksh output with all
@'s space-separated and all *'s comma-separated.This was essentially the same bug, though I didn't test typeset vs plain assignments or quoting variations back then: https://lists.gnu.org/archive/html/bug-bash/2013-01/msg00167.html +smorgbox bash-build # cat ~ormaaj/doc/projects/bash/testcases/peflattening2 shopt -s extglob { for sh in /bin/bash?(-*) ~ormaaj/doc/programs/bash-build/bash ksh mksh; do "$sh" /dev/fd/3; done; } 3<<\EOF function f { typeset -a a a=("$@") typeset IFS=, typeset a1="${a[@]} ${a[*]} $@ $*" typeset a2=${a[@]}\ ${a[*]}\ $@\ $* a3 a4 a3="${a[@]} ${a[*]} $@ $*" a4=${a[@]}\ ${a[*]}\ $@\ $* unset -v IFS printf '%s\n' "${BASH_VERSION:-${KSH_VERSION}}:" "a1=$a1" "a2=$a2" "a3=$a3" "a4=$a4" } echo f a b c # vim: ft=sh et EOF +smorgbox bash-build # bash ~ormaaj/doc/projects/bash/testcases/peflattening2 4.3.42(1)-release: a1=a,b,c a,b,c a,b,c a,b,c a2=a,b,c a,b,c a,b,c a,b,c a3=a b c a,b,c a b c a,b,c a4=a b c a,b,c a b c a b c 4.4.0(1)-rc2: a1=a,b,c a,b,c a,b,c a,b,c a2=a,b,c a,b,c a,b,c a,b,c a3=a b c a,b,c a b c a,b,c a4=a b c a,b,c a b c a b c Version ABIJM 93v- 2014-12-24: a1=a b c a,b,c a b c a,b,c a2=a b c a,b,c a b c a,b,c a3=a b c a,b,c a b c a,b,c a4=a b c a,b,c a b c a,b,c @(#)MIRBSD KSH R52 2016/04/09: a1=a b c a,b,c a b c a,b,c a2=a b c a,b,c a b c a,b,c a3=a b c a,b,c a b c a,b,c a4=a b c a,b,c a b c a,b,c
