set A B

IFS=

x=$*
y="$*"

recho "$x"
recho "$y" 

IFS=$' \t\n'

set 'A B' 'C D'

IFS=

x=$*
y="$*"

recho "$x"
recho "$y"

recho $x
recho $*
recho $y
recho "$*"