regstats – Information about register use

The pack­age will re­port num­ber of used reg­is­ters (counter, di­men, skip, muskip, box, to­ken, in­put, out­put, math fam­i­lies, lan­guages, in­ser­tions), and will com­pare the num­ber to the max­i­mum avail­able num­ber of such reg­is­ters.