Idea for remake the "Mending" enchatment

Instead of repearing tools and equipment by getting experiense, the "Mending" enchatment will not let increase an amount of levels of experiense on anvil when tool or rquipment is repearing by matereals. For example, you have a damaged iron showel and you want to repeare it on anvil by using an iron ingot. First repeare will be cost 1 level, and each next will be doubled until you get "too expensive" message. But this variant of "Mending" will lock cost at 1 level without any rising, which let repeare tools and equipment infinite.