On 2013–01–23 Wolfgang Schuster wrote:

Out of curiosity: Is possible to set up the new filler mechanism in
a way to yield alternating dots like in the TeXbook?

> > default look:
> > 
> > 1. First chapter  ...................   1
> > 2. Second chapter ...................  10 
> > 
> > requested look:
> > 
> > 1. First chapter  . . . . . . . . . .   1
> > 2. Second chapter . . . . . . . . . .  10

alternating look (Knuths' TeXbook style)

1. First chapter . . . . . . . . . . .  1
2. Second chapter . . . . . . . . . .  10

Marco