# expansion test cases from Posix interp 888

set "abc" "def ghi" "jkl"
unset novar
IFS=' ' # a space
printf '%s\n' $*
printf '%s\n' "$*"
printf '%s\n' xx$*yy
printf '%s\n' "xx$*yy"
printf '%s\n' $@
printf '%s\n' "$@"
printf '%s\n' ${1+"$@"}
printf '%s\n' ${novar-"$@"}
printf '%s\n' xx$@yy
printf '%s\n' "xx$@yy"
printf '%s\n' $@$@
printf '%s\n' "$@$@"
IFS=':'
printf '%s\n' "$*"
var=$*; printf '%s\n' "$var"
var="$*"; printf '%s\n' "$var"
unset var
printf '%s\n' ${var-$*}
printf '%s\n' "${var-$*}"
printf '%s\n' ${var-"$*"}
printf '%s\n' ${var=$*}
printf 'var=%s\n' "$var"
unset var
printf '%s\n' "${var=$*}"
printf 'var=%s\n' "$var"

IFS='' # null
printf '%s\n' "$*"
var=$*; printf '%s\n' "$var"
var="$*"; printf '%s\n' "$var"
unset var
printf '%s\n' ${var-$*}
printf '%s\n' "${var-$*}"
printf '%s\n' ${var-"$*"}
printf '%s\n' ${var=$*}
printf 'var=%s\n' "$var"
unset var
printf '%s\n' "${var=$*}"
printf 'var=%s\n' "$var"
printf '%s\n' "$@"

unset IFS
printf '%s\n' "$*"
var=$*; printf '%s\n' "$var"
var="$*"; printf '%s\n' "$var"
unset var
printf '%s\n' ${var-$*}
printf '%s\n' "${var-$*}"
printf '%s\n' ${var-"$*"}
printf '%s\n' ${var=$*}
printf 'var=%s\n' "$var"
unset var
printf '%s\n' "${var=$*}"
printf 'var=%s\n' "$var"
printf '%s\n' "$@"

set --
printf '[%s]\n' foo "$*"
printf '[%s]\n' foo "$novar$*$(echo)"
printf '[%s]\n' foo $@
printf '[%s]\n' foo "$@"
printf '[%s]\n' foo ''$@
printf '[%s]\n' foo ''"$@"
printf '[%s]\n' foo ''"$novar$@$(echo)"