TeX, LaTeX and Friends

cfr

06:41

@JasperHabicht it does.

@Rmano works for me. I used the -o option because I wasn't sure what it would do. but the output looks fine. (so far as I can tell - I don't know what it is meant to contain. but it has font tables and things and no obvious control chars or anything.)

question: I understand that a page has to be shipped out for anything to get logged, but why are the settings active at shipout applied to the whole page when this doesn't seem true of other things, unless they are inherently page-ish?

David Carlisle

08:35

@cfr like most pdf thingks (links etc) tags are not really interleaved within the text as they are in html, they are a separate tree of annotations that work per-page and overlay and reference the content stream

Ulrike Fischer

08:52

@cfr which settings do you mean?

David Carlisle

@UlrikeFischer yes I wondered that as well:-)

David Carlisle

10:20

@cfr texdef at ctan.org/incoming You got a response from Martin? Oh yes I see the PR merged.

2

Joseph Wright

@DavidCarlisle Oooh

David Carlisle

@JosephWright have you got a fixed collcell to hand? maybe it's a good time to make a PR :-)

Joseph Wright

@DavidCarlisle I have the code, yes

Joseph Wright

10:35

@DavidCarlisle I'll sort one at lunch time

Joseph Wright

11:14

@DavidCarlisle github.com/MartinScharrer/collcell/pull/1

2

David Carlisle

12:35

6

cfr

15:11

@UlrikeFischer something which changes how much is written to the log file. if \showX is active for part of a page, it doesn't seem to do anything unless it is still active at shipout?

@DavidCarlisle :-)

daleif

I was wondering. Is there a good way to define _case_compare stacks? With an interface like
\int_case_compare:nn {input}
{
{<}{2}{less than two}
{=}{2}{equal to two}
{>}{2}{more than two}
}

In my case I need it for decimal numbers, but that could not matter. It was just to avoid a large nested if then tree to setup some setting if an average is less than, 2, some other if less than 3 etc.

Naw, forget it will just use nested ifs

Skillmon

@daleif There was a feature discussion that would've provided that, but it got rejected, iirc.

Ulrike Fischer

@daleif this comes up from time to time, e.g. github.com/latex3/latex3/issues/1589#issuecomment-2332718240

@daleif can you run tests with memoir with a current dev?

Skillmon

@UlrikeFischer you were faster than me in posting the ticket link (just had it and then you already posted it :))

@daleif you could also use

\bool_case:nnF { { \int_compare_p:nNn { input } < 2 } { less than two } { \int_compare_p:nNn { input } = 2 } { equal to two } } { more than two }

cfr

15:36

@DavidCarlisle though it is not actually there?

David Carlisle

@cfr ctan.org/pkg/texdef?lang=en shows today's date

daleif

16:38

@UlrikeFischer I'll add it to my todo list. I don't have any pretest installations at the moment or are you referring to the official dev?

@Skillmon that might look nicer. And since it is generation tikz images it is slow already

Ulrike Fischer

16:58

@daleif yes, the official one. We will release one this week and it would be good if it is really tested (the previous one broke memoir as textcase no longer worked and nobody complained ...).

cfr

18:02

@DavidCarlisle ah, yes. good! no announcement, I guess. thanks.

the version has also been bumped.

Alan Munn

18:18

Does the code in \AtBeginEnvironment take effect inside the environment or just before it?

David Carlisle

@AlanMunn legacy name for \AddToHook{env/foo/begin} so inside, you can use \newcommand\BeforeBeginEnvironment[2][.]{\AddToHook{env/#2/before}[#1]} for before. But I would use \AddToHook not the legacy package names

Jasper Habicht

@JosephWright Would it be reasonable to provide a way to refer to the position of a point in another draw environment in the l3draw package? Or do you think that this would be out-of-scope? I wonder: doesn't the package via its backend save positions on the page anyways? But maybe I am wrong in this regard.

David Carlisle

@cfr they wait a day for mirrors to catch up before sending announcements

Alan Munn

18:43

@DavidCarlisle Thanks. I didn't get the memo. :) Can I nest \AddToHook, i.e. make a local change within an environment inside an environment?

Here's an example which behaves unexpectedly (to me at least):

\documentclass{article}
\newcounter{mytot}
\newcounter{mytotal}
\usepackage{etoolbox}
\newenvironment{mylist}
{\begin{enumerate}
\pretocmd{\item}{\stepcounter{mytotal}}{}{}}
{\end{enumerate}}
\AddToHook{env/mylist/begin}{
\AddToHook{env/enumerate/begin}{\pretocmd{\item}{\stepcounter{mytot}}{}{\fail}}
}

\begin{document}
\themytot
\begin{mylist}
\item Foo
\item Bar
\end{mylist}
\themytot

\begin{enumerate}
\item Foo
\item Bar
\end{enumerate}
\themytot

\begin{mylist}
\item Foo
\item Bar
\end{mylist}

cfr

@DavidCarlisle ah. I didn't realise that. ta.

@AlanMunn aren't hooks always global? \hook_gput_code:nnn? so you need to remove the code, too, or use a reverse hook? (but I don't understand reverse hooks.)

Alan Munn

@cfr That's my suspicion given this code, although even at that I'm unclear why the count is 8 and not 6 of the one in the hook code.

Joseph Wright

19:01

@JasperHabicht Isn't that more at the TikZ-like level? l3draw is basically a re-implementation of pgf but with various things tightened up, and using l3fp for calculations

Jasper Habicht

@JosephWright Yes, maybe it is ... I'm just wondering. At least it would be interesting to provide an L3 interface for saving a position on the page, but maybe again this is too high-level ... I am unsure

Joseph Wright

@JasperHabicht Position-on-page is handled outside of l3draw - it's a more general thing

Jasper Habicht

@JosephWright But is there an L3 interface for this?

Joseph Wright

@JasperHabicht See ltproperties

% \begin{variable}{xpos,ypos}
%   (shipout)  This stores the $x$~and $y$ coordinates of a point previously
%   stored with \cs{pdfsavepos}/\cs{savepos}.
%   E.g.~(if bidi is used it can be necessary to save the position
%   before and after the label):
%   \begin{verbatim}
%     \tex_savepos:D
%     \property_record:nn{myposition}{xpos,ypos}
%     \tex_savepos:D
%   \end{verbatim}
% \end{variable}
% \end{documentation}

(There is an open issue about the savepos business)

Jasper Habicht

@JosephWright Ah, interesting!

Yeah, well then it should probably not be a part of l3draw

Thanks!

Hm, I have the feeling that the manual is missing an example =D But, okay, I think I roughly get it

Cool, I did not know that such thing exists

Skillmon

20:13

Oh, another easybook

(sorry, but changes were actually there and an episode of AllTheDiff would've taken some time, and my wife wants me to join her in the kitchen, so just a quick "it's there" must suffice today)

samcarter

Actual changes in easybook - wow!

mickep

20:33

@DavidCarlisle Oh, perl

David Carlisle

@mickep all the best code is written in perl

mickep

20:46

@DavidCarlisle Oh, well :)

Skillmon

21:42

@DavidCarlisle indentfirst is also valid Perl?

David Carlisle

@Skillmon quite possibly, most strings are.

Skillmon

@DavidCarlisle :*

CarLaTeX

22:27

4

David Carlisle

22:40

@CarLaTeX you are missing a 4 before the comma:-)

Jasper Habicht

23:20

@DavidCarlisle Or a comma after the 4

cfr

23:55

@AlanMunn you are prepending the code each time you start an enumerate:

\documentclass{article}
\newcounter{mytot}
\newcounter{mytotal}
\usepackage{etoolbox}
\newenvironment{mylist}
{\begin{enumerate}
  \pretocmd{\item}{\stepcounter{mytotal}}{}{}}
{\end{enumerate}}
\AddToHook{env/mylist/begin}{
  \AddToHook{env/enumerate/begin}{\pretocmd{\item}{\stepcounter{mytot}}{}{\fail}}
}

\begin{document}
\themytot
\begin{mylist}    % adds code to start of enumerate; starts enumerate; code executed
  \item Foo       % mytot -> 1
  \item Bar       % mytot -> 2
\end{mylist}
\themytot

@AlanMunn you never remove the code, so it just accumulates.

-> The generic hook 'env/enumerate/begin':
> Code chunks:
>     ---
> Document-level (top-level) code (executed last):
>     -> \pretocmd {\item }{\stepcounter {mytot}}{}{\fail }\pretocmd {\item }{\
stepcounter {mytot}}{}{\fail }
> Extra code for next invocation:
>     ---
> Rules:
>     ---
> Execution order:
>     ---.
<recently read> }

l.36 \ShowHook{env/enumerate/begin}

?

@AlanMunn ^^ add right before \end{document}.

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