[Nix-dev] Re: What about making addToSearchPathWithCustomDelimiter only add uniq items?

[Marc Weber]

>     # if removing one of vale: :value: :value succeeds or value = list then don't item because its present
>     [ "${!1}${!1}${!1}" == "${!1/#$3$2/}${!1/$2$3$2/}${!1/%$2$3/}" ] && [ "$3"  != "${!1}" ] &&

This can be written shorter using case as \amethyst (on ##bash) pointed out:

case ..
  *$2$3|$3$2*|*$2$3$2*|$2) ;;
  *) add the item
esac

Marc