# Index a new Document from `title`, `uri` and string `string`.
	#
	# Return the Document created.
	#
	# See `index_document`.
	fun index_string(title, uri, string: String, auto_update: nullable Bool): DOC do
		var vector = parse_string(string)
		var doc = new Document(title, uri, vector)
		index_document(doc, auto_update)
		return doc
	end