From: Hans Hagen via ntg-context <ntg-context@ntg.nl>
To: ntg-context@ntg.nl
Cc: Hans Hagen <j.hagen@freedom.nl>
Subject: Re: upload
Date: Thu, 7 Jul 2022 10:27:29 +0200 [thread overview]
Message-ID: <3ba5f298-8f1a-8781-dc07-a26b8b6675ef@freedom.nl> (raw)
In-Reply-To: <ee5919f0-895d-1191-6adf-c99836c9a3e4@telus.net>
On 7/7/2022 3:15 AM, Max Chernoff via ntg-context wrote:
> Hi,
>
> With the latest upload, "tex.linebreak" doesn't return an "info" table.
>
> When running this code:
>
> \startluacode
> function test(head)
> local new_head, info = tex.linebreak(node.copylist(head))
>
> print(head, type(head), info, type(info))
>
> if info == nil then
> print "!!! info is nil !!!"
> end
>
> return head
> end
>
> nodes.tasks.appendaction("processors", "after", "test")
> \stopluacode
>
> \starttext
> Hello!
> \stoptext
>
> with the latest upload I get (also note the small typo in "rigthfill"):
>
> luatex warning > linebreak: no [ leftinit | rightinit | leftfill |
> rigthfill] expected
> <node : nil <= 2265 => 2353 : par vmodepar>
> userdata nil nil
> !!! info is nil !!!
> <node : nil <= 2475 => 2299 : glue userskip>
> userdata nil nil
> !!! info is nil !!!
>
> but with live.contextgarden.net I get:
>
> luatex warning > tex: left parfill skip is gone
> Underfull \hbox (badness 10000) in paragraph at lines 20--1
> <node : nil <= 936 => 929 : par vmode_par> userdata
> table: 0x39a050f7000 table
> <node : nil <= 1529 => 1561 : glue userskip> userdata
> nil nil
> !!! info is nil !!!
This is because you need to pass a list that conforms to what the
builder expects and the callback that you use doesn't do that for you
(after all, it also gets hbox content).
There is no 'callback sequence handler' for the par builder (currently i
see no need for it, also given the extra overhead involved) but this
what what you can do:
\startluacode
function builders.paragraphs.constructors.methods.preroll_a(head)
local result, info = tex.linebreak(head)
tex.prevdepth = info.prevdepth
tex.prevgraf = info.prevgraf
return result
end
function builders.paragraphs.constructors.methods.preroll_b(head)
local result, info = tex.linebreak(nodes.nuts.copylist(head))
inspect(info)
return true
end
\stopluacode
\defineparbuilder[preroll_a]
\defineparbuilder[preroll_b]
\starttext
\setmainparbuilder[default] \input tufte \par \input tufte \page
\setmainparbuilder[preroll_a] \input tufte \par \input tufte \page
\setmainparbuilder[preroll_b] \input tufte \par \input tufte \page
\stoptext
The tex.linebreak function gets the properly prepared paragraph and can
handle it then. On the to do is a to add a 'prepare' helper that adds
the mandate nodes (par fillers etc) but even then one has to be careful
where linebreak hackery is applied.
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
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
next prev parent reply other threads:[~2022-07-07 8:27 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-06 20:10 upload Hans Hagen via ntg-context
2022-07-06 20:38 ` upload Mikael Sundqvist via ntg-context
2022-07-07 1:15 ` upload Max Chernoff via ntg-context
2022-07-07 8:27 ` Hans Hagen via ntg-context [this message]
2022-07-08 7:40 ` upload Max Chernoff via ntg-context
2022-07-08 14:20 ` upload Hans Hagen via ntg-context
2022-07-07 20:48 ` upload Aditya Mahajan via ntg-context
2022-07-07 21:16 ` upload Hans Hagen via ntg-context
2022-07-08 22:34 ` upload Otared Kavian via ntg-context
2022-07-08 22:40 ` upload Otared Kavian via ntg-context
2022-07-09 7:39 ` upload Hans Hagen via ntg-context
2022-07-09 6:40 ` upload Hans Hagen via ntg-context
-- strict thread matches above, loose matches on Subject: below --
2023-04-11 21:02 upload Hans Hagen via ntg-context
2022-12-21 16:20 upload Hans Hagen via ntg-context
2022-12-21 21:15 ` upload Pablo Rodriguez via ntg-context
2022-12-09 16:41 upload Hans Hagen via ntg-context
2022-10-21 19:23 upload Hans Hagen via ntg-context
2022-05-09 15:41 upload Hans Hagen via ntg-context
2022-05-09 15:54 ` upload mf via ntg-context
2022-05-09 16:16 ` upload Hans Hagen via ntg-context
2022-05-09 16:39 ` upload Alexandre Christe via ntg-context
2022-05-09 16:16 ` upload Alexandre Christe via ntg-context
2022-05-09 16:36 ` upload Mikael Sundqvist via ntg-context
2022-05-10 5:10 ` upload śrīrāma via ntg-context
2022-05-11 12:48 ` upload śrīrāma via ntg-context
2022-05-11 15:46 ` upload Zhichu Chen via ntg-context
2022-05-11 17:00 ` upload Hans Hagen via ntg-context
2022-03-25 10:01 upload Hans Hagen via ntg-context
2022-03-28 21:22 ` upload Otared Kavian via ntg-context
2022-03-28 21:54 ` upload Mikael Sundqvist via ntg-context
2022-03-29 4:37 ` upload Otared Kavian via ntg-context
2022-03-29 14:10 ` upload Mikael Sundqvist via ntg-context
2022-03-29 16:08 ` upload Aditya Mahajan via ntg-context
2022-03-30 10:02 ` upload Otared Kavian via ntg-context
2021-12-30 18:14 upload Hans Hagen via ntg-context
[not found] <mailman.320.1640390435.1172.ntg-context@ntg.nl>
2021-12-25 9:09 ` upload Jeong Dal via ntg-context
2021-12-25 10:57 ` upload Hans Hagen via ntg-context
2021-12-24 18:45 upload Hans Hagen via ntg-context
2021-12-24 22:08 ` upload Jairo A. del Rio via ntg-context
2021-12-24 23:39 ` upload Rik Kabel via ntg-context
2021-12-24 23:54 ` upload Hans Hagen via ntg-context
2021-12-25 9:19 ` upload Marco Patzer via ntg-context
2021-12-25 10:55 ` upload Hans Hagen via ntg-context
2021-12-25 11:22 ` upload Marco Patzer via ntg-context
2021-12-25 11:44 ` upload Hans Hagen via ntg-context
2021-12-25 12:18 ` upload Marco Patzer via ntg-context
2021-12-03 14:29 upload Hans Hagen via ntg-context
2021-12-06 4:41 ` upload Jairo A. del Rio via ntg-context
2021-11-24 14:29 upload Hans Hagen via ntg-context
2021-11-26 10:06 ` upload Alain Delmotte via ntg-context
2021-11-26 10:44 ` upload Hans Hagen via ntg-context
2021-10-21 18:04 upload Hans Hagen via ntg-context
2021-10-21 19:13 ` upload Pablo Rodriguez via ntg-context
2021-10-22 7:55 ` upload Hans Hagen via ntg-context
2021-10-21 20:31 ` upload Mikael Sundqvist via ntg-context
2021-10-22 7:22 ` upload Hans Hagen via ntg-context
2021-10-23 8:10 ` upload Mikael Sundqvist via ntg-context
2021-10-22 15:50 ` upload Michal Vlasák via ntg-context
2021-10-22 16:51 ` upload Pablo Rodriguez via ntg-context
2021-10-23 0:40 ` upload Hans Hagen via ntg-context
2021-10-18 21:17 upload Hans Hagen via ntg-context
2021-10-19 6:43 ` upload Axel Kielhorn via ntg-context
2021-10-20 7:29 ` upload Hans Hagen via ntg-context
2021-10-19 16:03 ` upload Pablo Rodriguez via ntg-context
2020-11-23 17:55 upload Hans Hagen
2020-11-23 18:28 ` upload Pablo Rodriguez
2020-11-23 18:29 ` upload Christian Prim
2020-11-23 19:21 ` upload Otared Kavian
2020-11-23 19:27 ` upload Hans Hagen
2020-11-23 19:24 ` upload Hans Hagen
2020-11-17 11:55 upload Hans Hagen
2020-11-17 13:57 ` upload Pablo Rodriguez
2020-11-17 14:15 ` upload Hans Hagen
2020-11-18 20:29 ` upload Pablo Rodriguez
2020-11-18 22:57 ` upload Hans Hagen
2020-11-17 15:26 ` upload Willi Egger
2020-07-27 14:42 upload Hans Hagen
2020-07-28 8:58 ` upload Fabrice Couvreur
2020-07-28 11:28 ` upload Hans Hagen
2020-02-11 16:00 upload Hans Hagen
2020-02-11 16:18 ` upload Floris van Manen
2020-02-11 19:07 ` upload Hans Hagen
2020-02-11 21:09 ` upload Richard Mahoney | Indica et Buddhica
2020-02-13 10:28 ` upload mf
2020-02-13 12:57 ` upload Hans Hagen
2020-02-17 9:39 ` upload mf
2013-03-05 18:18 upload Hans Hagen
2013-03-05 19:45 ` upload Thomas A. Schmitz
2012-07-04 8:56 upload Hans Hagen
2012-07-04 10:40 ` upload Hongwen Qiu
2012-07-04 11:29 ` upload Hans Hagen
2012-07-04 16:02 ` upload Philipp Gesang
2012-06-22 9:37 upload Hans Hagen
2012-06-22 10:10 ` upload Marco
2012-06-22 11:24 ` upload Hans Hagen
2012-06-22 12:19 ` upload Marco
2012-06-19 20:40 upload Hans Hagen
2012-06-20 3:28 ` upload Hongwen Qiu
2012-06-20 14:20 ` upload Hans Hagen
2006-04-07 8:22 upload Hans Hagen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3ba5f298-8f1a-8781-dc07-a26b8b6675ef@freedom.nl \
--to=ntg-context@ntg.nl \
--cc=j.hagen@freedom.nl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).