@Override
        public Iterator<String> extract(String input) {
            if (indexOfEither(input, LIST_SEPARATOR, LIST_SEPARATOR_2) == -1) {
                return Iterators.singletonIterator(input);
            }
            return this.splitter.split(input).iterator();
        }
Expands "aa,bb|cc" to ["aa", "bb", "cc"]
common/src/main/java/me/lucko/luckperms/common/node/utils/ShorthandParser.java