[luatex] \predisplaydirection from etex in luatex has no effect
taco at elvenkind.com
Tue Apr 6 14:30:57 CEST 2010
Vafa Khalighi wrote:
> The attached (test.tex, test-pdftex.pdf and test-luatex.pdf) shows that this
> primitive actually works in PDFTeX and XeTeX but it does not in luatex (it
> is defined, but does not work).
> This is a very useful primitive for bidirectional typesetting. However,
> there is a bug that Jonathan mentioned on the xetex mailing list and that is
> about spacing (look at direction.tex and direction.pdf).
> I suggest to not remove this primitive from luatex since it is essential for
> bidirectional typesetting, and I already emailed Peter, so if he fixes the
> bug, then no problem but if he does not, would you Taco be able to fix this
Can you explain the offered functionality? That is not clear to me from
the example code.
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