[luatex] \predisplaydirection from etex in luatex has no effect

[Vafa Khalighi]

Can you explain the offered functionality? That is not clear to me from

> the example code.
>
>
It is an internal read/write integer, initialised by e-TeX to indicate the
direction of the last partial paragraph before a display; it is used to
control the placement of elements such as equation numbers, and can be
explictly set to affect this placement.



-- 
Best wishes,
Vafa Khalighi
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