_ls() {
	env ls "$@"
}

matchtest() {
	printf "%s" "$1" | grep -qE "$2"
}

_lsp() {
	if matchtest "$(uname)" "Linux" && matchtest "$*" '(^| )(-h|--help)( |$)'; then
		_ls "$@"
		local error=$?
		test $error -eq 0 && cat <<- EOF
			ls zero bash polyfill:
			    adds additional --zero option, which seperates
			    output with null characters rather than newlines
			    use _ls or env ls for default behavior
		EOF
		return $error
	fi
	matchtest "$*" '(^| )--zero( |$)'
	local zero=$?
	local args="$@"
	declare -a args=(${args[@]/--zero/})
	if test $zero -eq 0; then
		output="$(_ls "${args[@]}")"
		error=$?
		printf "%s" "$output" | tr '\n' '\0'
		return $error
	fi
	_ls "${args[@]}"
}

alias ls=_lsp