[XeTeX] \predisplaydirection primitive from etex
Jonathan Kew
jfkthame at googlemail.com
Mon Apr 5 18:22:35 CEST 2010
On Mon, Apr 5, 2010 at 4:52 PM, Vafa Khalighi <vafakh84 at gmail.com> wrote:
> This is a very useful primitive that I just found now.
> http://tex.loria.fr/moteurs/etex_ref.html#predisplaydirection says:
>
> "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. "
>
> But whatever integer, I give to this primitive, I see no difference. Could
> please someone send a minimal document showing how this primitive actually
> works?
>
>
Well, I've never used this, but a little experimentation indicates that it
seems to do just what the doc says; see attached. Note that there also
appears to be a spacing bug associated (see the last example).
JK
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://tug.org/pipermail/xetex/attachments/20100405/2532f256/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: direction.tex
Type: application/x-tex
Size: 807 bytes
Desc: not available
URL: <http://tug.org/pipermail/xetex/attachments/20100405/2532f256/attachment.tex>
More information about the XeTeX
mailing list