[luatex] glue fill order

luigi scarso luigi.scarso at gmail.com
Wed Oct 9 11:26:52 CEST 2019

On Sat, Oct 5, 2019 at 10:42 PM David Carlisle <d.p.carlisle at gmail.com>

> Is there any chance that luatex could change here to be compatible
> with other systems?
we are  discussing it, but there is not an easy solution.
As is now in luatex, \gluestretchorder is consistent (integer always
greater than zero and ordered ),
something else  breaks consistency and backward compatibility (this is a
quite old macro).

> If it is not possible to change the default behaviour would it be
> possible to have a flag settable in the format so that  fi fil fill
> fill were (say) -1,1,2,3 not 1,2,3,4?
> both for \gluestretchorder and tex.setglue ?

At format level one can patch it, the point is at engine level.

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