- local val=" $(uci_get_state firewall core $var) "
- val="${val// $item / }"
- val="${val# }"
- val="${val% }"
- uci_set_state firewall core $var "$val"
+ local rest=""
+ local val="$(uci_get_state firewall core $var)"
+ local e1; for e1 in $val; do
+ local e2; for e2 in $item; do
+ [ "$e1" = "$e2" ] && e1=""
+ done
+ rest="${rest:+$rest${e1:+ }}$e1"
+ done
+
+ uci_toggle_state firewall core $var "$val"