TeX, LaTeX and Friends

LaTeXereXeTaL

12:05 AM

Last night i updated to MacTeX 2021 with no trouble at all.

CarLaTeX

7:23 AM

@LaTeXereXeTaL The same for me, the day before :)

Joseph Wright

8:17 AM

LearnLaTeX now has a setting for HTML output: learnlatex.org/en/settings

2

Yay @DavidCarlisle!

TeXnician

@JosephWright The only interesting part is the “Compiling PDF…” message when actually generating HTML :D

But the HTML output works great :)

yo'

8:48 AM

@JosephWright btw, the list of editor themes looks familiar -- using Ace? :)

yo'

9:01 AM

> A panda spends 12 hours a day eating. A quarantined human eats like panda. That's why it's called pandemic.

4

Paulo Cereda

Happy Easter!

Joseph Wright

@yo' Yes

David Carlisle

9:46 AM

@Skillmon important day for you: carrotday.com/carrotday.htm

3

Paulo Cereda

@DavidCarlisle ooh

@DavidCarlisle also, Easter quack

David Carlisle

@TeXnician yes I know, I may fix that it is already site settable: If you try here it says pdf or html davidcarlisle.github.io/latexcgi/test-make4ht#lualatex

TeXnician

@DavidCarlisle Ah. Nice details :)

David Carlisle

@yo' yes LL has been using ACE for ages (the very first versions just used an conteditable div so had no editor features at all)

@PauloCereda looking forward to roast easter lunch

Paulo Cereda

@DavidCarlisle oh no

/quacks in despair

Joseph Wright

9:54 AM

@DavidCarlisle See Skype

Paulo Cereda

2

@Plergux ^^ THIS

Rmano

10:08 AM

@PauloCereda Happy Easter to everyone!

Paulo Cereda

@Rmano Buona Pasqua, signore squirrel. :)

Rmano

@PauloCereda Missing "add enhancements to your LaTeX package that nobody will use due to not reading documentation" there...

Paulo Cereda

@Rmano ooh it's probably inside the whale

Plergux

10:31 AM

@PauloCereda So much this! XD

yo'

@DavidCarlisle interesting. I wonder if you already found all the bugs ;)

David Carlisle

@yo' there are no bugs, only features that are not my fault

5

Paulo Cereda

@DavidCarlisle ooh

@Plergux <3

yo'

@DavidCarlisle yeah, definitely.

Plergux

@PauloCereda I would probably have snuck in a Yarn Swamp or two :p

David Carlisle

10:38 AM

@yo' some people have suggested monaco but ace seems to work well enough here and changing it and testing a new editor seems a lot of effort if no actual issues reported

Paulo Cereda

@Plergux ooh and a chocolate lagoon

Plergux

@PauloCereda Oh definitely. :p What better time to learn how to make your own confectionary than when you're supposed to be writing your thesis! XD

yo'

@DavidCarlisle each editor has its issues. E.g. the following is quite a cool marking of paired braces ;)

Paulo Cereda

@DavidCarlisle ooh Riviera

@Plergux Exactly! Thesis writing is past that whale bloke. :)

Joseph Wright

@DavidCarlisle I wonder where they both are for accessibility - it's hard to get a feel for the situation today

Andreas Matthias

10:41 AM

Hi everyone! I just wrote a few line of code to get user password decryption for pdfs in luatex.def. (I needed it for testing of other code.) Now I'm wondering why luatex.def doesn't provide this already. Is there a reason? Am I missing something?

Paulo Cereda

@yo' ooh :D

Plergux

@PauloCereda Yeah, not going past that whale, I know what happened to Ahab XD

@PauloCereda And Jonah!

yo'

@JosephWright we don't have people suggesting that Ace itself is an accessibility burden in Overleaf.

David Carlisle

@JosephWright I tried some of the read-aloud options with ace and it was OK I think, although better if you turn line numbers off, but whether the accessibility is enough to actually control the editor I do not know.

Paulo Cereda

@Plergux LOL

@DavidCarlisle ooh read aloud xii.tex?

Joseph Wright

10:42 AM

@yo' Ah, interesting

@DavidCarlisle Like I said, hard to judge - perhaps we could have a setting for the line numbers?

@AndreasMatthias In general, TeX systems cannot use password-protected PDFs, so this would be ... awkward (plus I'm surprised LuaTeX can do it)

David Carlisle

@JosephWright we could but if you look at the panel from control-comma there are lots of settings if we need to expose more it may be better to use a lower level thing that preserves a default editor state rather than simple dropdowns but keeping it simple....

Joseph Wright

@DavidCarlisle Ah, yes, might be right

Andreas Matthias

@JosephWright /saveimageresource in luatex provides a userpassword and owerpassword. Adding this to luatex.def doesn't seem so difficult. Well, I know nothing about the internals of graphics.sty, just threw in a few lines of code and it worked. :)

Ulrike Fischer

@AndreasMatthias what happens then if you try to include a password protected pdf?

Joseph Wright

@AndreasMatthias Where's your user interface to put in the username/password?

Andreas Matthias

10:50 AM

@UlrikeFischer If you provide the correct password luatex can include the pdf.

David Carlisle

@AndreasMatthias you mean \includegraphics[password=passwd-in-plain-text]{myfile.pdf} ?

Ulrike Fischer

@AndreasMatthias but where? Do you get a dialog? who is creating the dialog?

Joseph Wright

@AndreasMatthias Yes, but where do you put the password in the input? Sounds like it would have to be part of the TeX source, something like \inlcudegraphics[password = ABCDE]{name-of-file}?

Ulrike Fischer

three people asking the same thing ;-)

David Carlisle

@UlrikeFischer GroupThink

Paulo Cereda

10:52 AM

@UlrikeFischer ooh me and sheep person want a chocolate lagoon :)

Andreas Matthias

Is it possible to upload files here? Doesn't work for me :(

@JosephWright Yes, that's exactly how I did it.

David Carlisle

@AndreasMatthias no but for small bits of code write the multi-line example elsewhere then paste it in and it offers a "fixed format" button

Ulrike Fischer

@AndreasMatthias I don't think so, only pictures.

Andreas Matthias

\makeatletter
\documentclass[a4paper]{article}
\usepackage{graphicx}

\usepackage{etoolbox}
\let\Gin@userpassword\@empty
\define@key{Gin}{userpassword}{%
\def\Gin@userpassword{#1}}

\patchcmd{\Gread@@pdftex}{%
\ifx\Gin@page\@empty\else page \Gin@page\fi}{%
\ifx\Gin@page\@empty\else page \Gin@page\fi
\ifx\Gin@userpassword\@empty\else userpassword{\Gin@userpassword}\fi}{}{}

\patchcmd{\Gread@@pdftex}{%
\@ifundefined{#1 image\Gin@attr@hash}}{%
\check@userpassword{#1}{\Gin@userpassword}%
\@ifundefined{#1 image\Gin@attr@hash}}{}{}

David Carlisle

@AndreasMatthias so to answer your question, it isn't in luatex.def as we hadn't noticed it was possible, but I'm not sure that offering a mechanism that needs passwords in plain text in the file is something we would want to add.

Joseph Wright

10:57 AM

@DavidCarlisle @AndreasMatthias Also, we try very hard to have the same features for all backends - this would be LuaTeX-specific and so complicate things

David Carlisle

@AndreasMatthias there used to be issues with distributing decryption software from the US, has that been resolved, or does luatex just ignore it?

Andreas Matthias

@DavidCarlisle Yeah, I remember this discussion. That's why I asked.

David Carlisle

@JosephWright to an extent but you can't input pdf at all with latex/dvips for example.

@AndreasMatthias probably best not discussed in public forums

Joseph Wright

@DavidCarlisle True: I meant we'd tried to bring things broadly into line

Andreas Matthias

Could it be that legal issues were related to encryption but not decryption?

David Carlisle

11:04 AM

@AndreasMatthias I'm not a lawyer

@AndreasMatthias possibly but I think the interface should be via a dialog or getting the password from some password store, I don't think we should suggest passwords being stored in plain text.

Andreas Matthias

@DavidCarlisle You mean providing an interface from luatex to something like gnome-keyring?

David Carlisle

@AndreasMatthias yes but that complicates it a lot as it's highly platform and user specific, so not doing anything has some advantages

Andreas Matthias

@DavidCarlisle ;) ;) ;)

David Carlisle

@AndreasMatthias really it's the same answer given for not supporting png and pdf files with latex/dvips, it adds a lot of complication and the user can always convert the file before running latex so it doesn't add a lot of functionality.

Andreas Matthias

@DavidCarlisle Sure. I understand. I was just wondering wether I should handle decryption in my code as well. But if LaTeX/graphics doesn't, I don't need to either. I was just afraid I was missing something here. Maybe another package providing this functionality. But it's fine for me to skip encrypted pdfs.

David Carlisle

11:20 AM

@AndreasMatthias certainly in my case it wasn't a considered decision not to support it I simply hadn't noticed it was there (is it a recent addition, or has it been there for ages?)

Andreas Matthias

@DavidCarlisle I have no idea. I was just skimming through the pdfe lib when I saw it and realized that it is (partly) support on the macro level as well.

Rmano

11:54 AM

ctan.org/incoming first TL2021 release!

2

Paulo Cereda

@Rmano yay

David Carlisle

12:12 PM

@PauloCereda q for you on the main site :-)

Paulo Cereda

12:42 PM

@DavidCarlisle seen it, thanks

Paulo Cereda

1:31 PM

@DavidCarlisle twitter.com/jschauma/status/1378172844169961477

yo'

@JosephWright well, don't take my word on it 100% as I'm never sure about the details, but I believe the accessibility issues are in our frontend itself, not the editor.

David Carlisle

1:47 PM

@yo' I don't think you expose customisation like the ace theme to the user? I guess the main thing you have over standard ace latex highlighting is the command completion dropdown, I see ace has an api for that but I never looked at the details

yo'

@DavidCarlisle we do have the themes, in the project Menu. And yes, I believe we use the API for code injections.

David Carlisle

@yo' ah so you do.

yo'

@DavidCarlisle that's how I realized you use Ace. (And then I noticed that you mention it explicitly ;) )

Alan Munn

2:25 PM

@PauloCereda nytimes.com/2021/04/03/business/…

Paulo Cereda

@AlanMunn Goodness

4

Happy Ea... oopsie

Plergux

@PauloCereda lol

Joseph Wright

4:58 PM

Things are coming together with siunitx v3: making sure I tackle one 'difficult problem' per day

Paulo Cereda

@JosephWright kill a lion a day?

Joseph Wright

@PauloCereda Er, not that difficult

@PauloCereda Complex numbers are up there

Paulo Cereda

@JosephWright half a lion then :)

@JosephWright blame mathematicians :)

Rmano

6:43 PM

@PauloCereda imaginary lions...

Faheem Mitha

6:56 PM

I'm trying to switch font families and sizes from word to word, but it doesn't seem to work. See the following code. Can someone tell me what I'm doing wrong?

\RequirePackage{iftex}
\RequireLuaTeX
\documentclass[12pt]{scrartcl}
\RequirePackage{unicode-math}
\setmainfont[Scale=0.93]{TeX Gyre Schola}
\setmathfont[Scale=0.93]{TeX Gyre Schola Math}
\begin{document}

{\fontsize{14}{14}\selectfont three}
{\fontfamily{ppl}\fontsize{14}{14}\selectfont three}
{\fontfamily{qpl}\fontsize{14}{14}\selectfont three}
{\fontfamily{qpl}\fontsize{14}{14}\selectfont three}
{\fontfamily{put}\fontsize{14}{14}\selectfont three}

\end{document}

barbara beeton

@AlanMunn -- My husband forwarded this tweet to me, with the comment that it's also relevant in Rhode Island: "Ah, spring in Canada. Where no matter what jacket you choose, you're wrong." (Too true!)

Ulrike Fischer

7:25 PM

@FaheemMitha the fonts don't works with TU encoding and so falls all back to lmr:

LaTeX Font Warning: Font shape `TU/qpl/m/n' undefined
(Font)              using `TU/lmr/m/n' instead on input line 27.

Alan Munn

7:36 PM

@barbarabeeton Haha true for much of the country, for sure.

David Carlisle

@FaheemMitha you are mixing OpenType Unicode fonts with 8bit pdftex families set up for pdftex.

Skillmon

8:29 PM

@DavidCarlisle That's so considerate! Thank you!

I'm a bit confused: The package dimnum is used for Commands for dimensionless numbers.

David Carlisle

8:51 PM

@JosephWright I went through the whole LL course with HTML return, get these failures, most of them in extra01, and probably most can be fixed with a suitable configuration davidcarlisle.github.io/latexcgi/test2-make4ht

I may have to ask @michal.h21 for help:-)

@Skillmon I read that as dimsum to start with, felt quite hungry

Skillmon

9:25 PM

What is the correct way to manually change the release of a package from within that package if a test isn't matched? I'm using \DeclareRelease and want to use a specific one if \IfFormatAtLeastTF is false.

David Carlisle

@Skillmon \input{old package}\endinput I suspect

Dr. Manuel Kuehner

9:44 PM

I just had a look at tex.stackexchange.com/questions/11 because I was looking for a book that also includes LuaTeX. Are you aware of a book that includes LuaTeX? PS: I will be offline now and will not be able to immediately reply.

@PauloCereda The picture made me literally laugh!

Joseph Wright

10:30 PM

@DavidCarlisle Wow

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