User blog comment:Vel!/Ellipsis considered harmful/@comment-25601061-20160326162823/@comment-1605058-20160326171811

You have chosen a poor example. What repeats b times? Does a repeat b times? Does {c}? Or maybe does whole a {c} a {c} block repeat b times? (okay, I agree the third of these isn't likely to be intended, but nothing in the example indicates whether you mean the first or the second) Of course you know the answer, but the very point is that we don't.