Hi,
The Lua(Meta)TeX manuals talk about ghost nodes. I did not find any
information on what that is. Up to now, for all other stuff encountered
in the LuaMetaTeX manual that I did not know and wanted to have a rough
idea of what it is about, I found the relevant information either in the
LuaMetaTeX manual itself, in TeX by Topic, or in the ε-TeX manual. I.e.
I found it using the LuaMetaTeX manual itself, or the manuals that were
referenced at the beginning of chapter 1 of the LuaMetaTeX manual as
important additional material.
The Lua(Meta)TeX manual mentiones that \leftghost and \rightghost come
from Aleph. I searched the web quite a bit about Omega and Aleph on that
issue, and tried other things, but found nothing of relevance. There is
a manual for Omega, but, after conversion from ps to pdf, and opening
the pdf with Evince, the search function did not find the phrase 'ghost'
in it, either.
Omega was to a large extend about supporting scripts and fonts for them
and when doing so you sometimes need to indicate the boundry of words or
glyph runs (regular tex also has a boundary char in the fonts).
first hit on "omega leftghost"
http://torus.math.uiuc.edu/jms/tex2mathml/omega-1.23.4/src/web_omega/omfont.ch
(thinking of it, i'm not sure if we should keep it because I'm not aware
of fonts that have kerns wrt left and right ghist glyphs; we do have a
boundary node system instead)
Hans
-----------------------------------------------------------------
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
_______________________________________________
dev-context mailing list
dev-context@ntg.nl
https://mailman.ntg.nl/mailman/listinfo/dev-context
