Just in case it is of interest (and assuming this won’t change in future
versions), after digging again in lua code I replaced
nodes.handlers.characters(head) with
local proc = nodes.tasks.actions('processors') -- not sure finalizers tasks are
needed ?
head = proc(head)
before passing returned head to linebreak:
local vbox, info = tex.linebreak(head, {})
node.write(vbox)
and it shows kern in ouput, apparently identical to vanilla typesetting.
Joseph
From: josephcan...@gmail.com
Sent: Tuesday, November 17, 2015 9:15 AM
To: ntg-context@ntg.nl
Hello,
I was wondering if someone could have some hints on this question, anyway, I
found the function mknodes() from luaTeX wiki and
nodes.handlers.characters(head) function in ConTeXt (as it seems that
node.ligaturing(head) and node.kerning(head) do not seem to do anything).
It seems to work fine (ligatures and font features) expect the kerning. Does
someone know how to perform the kerning as well ?
Best regards
Joseph Canedo
From: josephcan...@gmail.com
Sent: Saturday, November 14, 2015 11:16 AM
To: ntg-context@ntg.nl
Dear all,
Is it possible in ConTeXt within lua code to do “trial typesetting” (not sure
that’s best name for what I would like to achieve) ? By this I mean store some
input (with text and macros) in some buffer and do what ConTeXt does normally
(parsing, create nodes …) but instead of shipping the nodes to line breaking
algorithm and to the page output, only retrieve the nodes and after discard
them. This is to get an estimate of the total text width within a paragraph (to
calculate some shape on the paragraph).
I browsed the lua code from http://source.contextgarden.net/ but I do not dare
to use too low level lua functionality.
Many thanks for any hint (even a pointer to lua function).
Best regards
Joseph Canedo___________________________________________________________________________________
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