On 8/4/2018 7:44 PM, Thomas de Vivo wrote:
dear dev-luatex list,
I'm an estimator of (La)Tex and the
work done Donald Knuth -- as well as the work that
you all are doing -- and I'm following this list
since a while.
Few time ago I have been in touch with
Patrick Gundlach of https://www.speedata.de/en/
a publishing system based on LuateX.
My concern and goal would be to be able
to control the looseness of paragraphs while
paging a text, so to minimize widows and orphans
in the resulting document.
In practical terms, when the system finds that
a widow is being produced, then it tries to make
the relevant paragraph more dense, or even
more than one, in order to fit all the text
in the page. (This is not currently possible using Speedata)
I would like to know whether LuaTex offers such
control, on in other terms whether the pagination
algorithm is as sophisticated as the famous
linebreak algorithm of Tex/Latex. (thing in
my opinion highly desirable)
Alternatively, I would like to know what files
I have to check in the distribution of Lua
to reach such a result.
You can write callbacks functions that do such things; after all you
have access to the internals. It could work out ok for trivial documents
but the times i played with it myself but in the end the interaction
between different mechanisme, conflicting demands etc make a fully
unattended automatic mechanmism that meets all demands kind of hard.
(IRR, Don Knuth somewhere suggests to adapt the text in hard to cover
cases.).
This is why we're not adding more heuristics to the core but expect
users to use callbacks and mess around with lua.
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-luatex mailing list
dev-luatex@ntg.nl
https://mailman.ntg.nl/mailman/listinfo/dev-luatex
