[luatex] stretch_order

[Paul Isambert]

Selon Arthur Reutenauer <arthur.reutenauer at normalesup.org>:

> > The stretch/shrink_order fields of a glue_spec, and the glue_order field of
> a
> > box, return a number between 0 and 4, as follows: an finite amount is 0,
> and
> > fil, fill and filll are 2, 3 and 4 respectively. What would 1 represent,
> then?
>
>   fi, obviously.  This was introduced in Omega, I believe.

Indeed. I'd never heard of it.

Thank you,
Paul