[Dev-luatex] Lower limit for math operators lost if kern <= 0

luigi scarso luigi.scarso at gmail.com
Mon Apr 27 00:49:52 CEST 2020


On Mon, Apr 20, 2020 at 2:27 PM Marcel Fabian Kr├╝ger <tex at 2krueger.de>
wrote:

> Look at the following document:
>
>   \Umathlimitbelowbgap\displaystyle0pt
>   \Umathlimitbelowvgap\displaystyle0pt
>   $$
>     \sum_a^b
>   $$
>   \bye
>
> Here the `a` subscript gets lost. In mlist.c, make_op, line 3324 the
> subscript (stored in variable `z`) is never coupled with the previous
> node if `shift_down` is smaller or equal to 0.
>

fixed in revision 7358.

--
luigi
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