foo-bquux # dw: letters then spaces right of cursor
foo-quux # daw: letters on both sides of cursor then spaces on the right
foo- quux # diw: letters on both sides of cursor
foo-bquux # dW: non-whitespace then spaces right of cursor
quux # daW: non-whitespace on both sides of cursor then spaces on the right
quux # diW: non-whitespace on both sides of cursor