Function ArrayUnion

strings/ahocorasick/shared.go:86–95

ArrayUnion Concats two arrays of int's into one.

(to, from []int)

// ArrayUnion Concats two arrays of int's into one.
func ArrayUnion(to, from []int) (concat []int) {
	concat = to
	for i := range from {
		if !Contains(concat, from[i]) {
			concat = IntArrayCapUp(concat)
			concat[len(concat)-1] = from[i]
		}
	}
	return concat
}

// GetParent Function that finds the first previous state of a state and returns it.
// Used for trie where there is only one parent.