TeX - TopAnswers

Joseph Wright

https://faq.gutenberg-asso.fr/

CarLaTeX

Package in the spotlight: [TrivialPursuit](https://www.ctan.org/pkg/TrivialPursuit)

samcarter

Package in the spotlight: [circularglyphs](https://www.ctan.org/pkg/circularglyphs)

CarLaTeX replying to mathproff

There is a button "Ask" on the top right of the main frame

mathproff

Dear, Please how can I ask a question? thanks

topnush

is there any measure of how popular this site has been over the last year?

barbara beeton replying to निरंजन

Thanks for this.  In addition to pointing out the ubiquity of Windows (it was foisted onto a smoothly running Linux-based TeX production operation by management where I worked), the article uses the expression "a software", which drives me batty.  "Software" is a mass noun, not a count noun.  I'm not sure I can blame Microsoft for this usage, but it's one more bit of evidence of the degradation of language.

निरंजन

https://www.bbc.com/future/article/20231025-the-surprisingly-subtle-ways-microsoft-word-has-changed-the-way-we-use-language

Does the author even bother to open their windows (or close their Windows™) and look outside the world of Microsoft? Some claims sound so unreal, can't resist laughing.

samcarter replying to Joseph Wright

sure!

Joseph Wright replying to samcarter

Would you also post in the Other Place please?

samcarter

Seems the videos from TUG2023 are being posted: https://www.youtube.com/playlist?list=PLLt9mKFAx-FZkuBBIO5ZLMNvZsD9PAs5e (in case somebody would like to watch a talk again)

CarLaTeX replying to samcarter

Yay!

samcarter replying to CarLaTeX

Oh, thanks for the link! TikZlings in the wild! That's funny!

CarLaTeX

@samcarter Did you see the [memoize](https://ctan.mirror.garr.it/mirrors/ctan/macros/generic/memoize/doc/memoize.pdf) package documentation?

samcarter replying to Skillmon

Nice!

Skillmon

PoC: Defining a key-set in `expkv` that allows defining new keys on the fly (similar to `pgfkeys`) in 15 lines of code (which use undocumented internals of `expkv-def` and `expkv-pop`):  
  
```  
\documentclass{article}

\usepackage{expkv-def}

\makeatletter
\protected\long\ekvsetdef\myset{myset}
\protected\long\ekvdefunknown{myset}
  {%
    \def\ekvd@set{myset}%
    \begingroup
      \ekvpDefNoType{ekvd@definekeys}{\errmessage{myset: Unknown key `#2'}}%
      \expandafter
    \endgroup
    \ekv@expanded{\ekvp@p\ekvp@@p@ekvd@definekeys{}{#3}{#1}}%
  }
\protected\long\ekvdefunknownNoVal{myset}
  {%
    \errmessage
      {myset: \ekvifdefined{myset}{#1}{Missing value for}{Unknown} key `#1'}%
  }
\makeatother

\myset
  {
     store foo=\Foo
    ,foo = baz
    ,store bar=\Bar
    ,nmeta baz={foo=bar, bar=baz}
    ,baz
  }
\show\Foo

\stop
```

samcarter

Package in the spotlight: [non-decimal-units](https://www.ctan.org/pkg/non-decimal-units)

samcarter

test, just ignore me :)

CarLaTeX replying to samcarter

Sure!

samcarter

I think the width of the wings of Prof. van Duck would make an excellent new unit, too :)

samcarter replying to CarLaTeX

Sorry, next time I'll add a link!

CarLaTeX replying to Skillmon

Thank you! I didn't realize it

Skillmon replying to CarLaTeX

https://tug.org/members/TUGboat/tb44-2/tb137egger-edith.pdf (on the page @samcarter provided there was a link)

CarLaTeX replying to samcarter

Could you give a link? I can't find it googling

samcarter

(If someone would like something entertaining to read, I can recommend "New dimensions: Edith and Tove")

samcarter

The TUG23 proceedings are now available: https://tug.org/TUGboat/Contents/contents44-2.html

CarLaTeX replying to samcarter

:D

samcarter replying to CarLaTeX

A package with `robust` in the name is like an invitation to break it :)

CarLaTeX

Package in the spotlight [robust-externalize](https://ctan.org/pkg/robust-externalize)

Skillmon replying to samcarter

Good package. Now all we have to wait for is a more thorough and better integrated `l3fp` into Ti*k*Z so `pgfmath-xfp` becomes obsolete.

samcarter

Package in the spotlight: [pgfmath-xfp](https://www.ctan.org/pkg/pgfmath-xfp)

निरंजन replying to frougon

Understood, thanks for the detailed explanation!

निरंजन replying to samcarter

Hmm, true :)

frougon replying to निरंजन

AFAIK, the problem is that the `xspace` macro that (basically) checks if a letter or punctuation comes next, may be followed by tokens (from user or package code) that are not category 11 or category 12 tokens, rather expandable tokens that, after some expansion and possibly execution steps that `xspace` has no way to know (think non-expandable loops), may append items to the horizontal list, items which may ultimately appear as horizontal space, letters or punctuation. In short, `xspace` can't see through the future execution of TeX code that follows its main macro.

samcarter replying to निरंजन

It is not always easy to see what comes after something. Good crystal balls are hard to get.

निरंजन

Why is it so difficult to predict the places where an approach like `xspace` _may_ fail? I am never gonna use that package tbh, because I personally don't find adding `\` or `{}` that serious a problem, but I am curious to know why it is so difficult to predict the consequences of `xspace`.

Skillmon replying to frougon

thanks for looking it up! :)

frougon replying to Skillmon

David Carlisle [wrote](https://tex.stackexchange.com/a/86620/73317):  
  
> I originally implemented `xspace` a long time ago (for LaTeX 2.09) (...).  
> 
> The rule in TeX is really quite simple, after a command name that uses letters (as opposed to single character command names using non-letters such as `\$`) white space is ignored. It is easy to forget to use `\` or `{}` but the result of forgetting is very predictable, you lose white space in the result. Conversely with `xspace` the macro will get the correct space most of the time, but it isn't easy to predict when it will get it wrong, and so it's much harder to learn to enter the markup in a way that is always correct rather than having to always visually check for missing space, which rather negates the purpose of the command.
> 
> So, if you find it useful, fine, it's there. But personally I wouldn't recommend it.

Skillmon replying to samcarter

I'm sure I remember him advocating against its usage, but knowing David, most likely yours is the more probable take.

निरंजन replying to samcarter

:joy:

samcarter replying to AnonymousRabbit

I thought the general rule is "use it if you want but don't blame David" :)

AnonymousRabbit replying to samcarter

I didn't look at that package, but since the general rule for `xspace` is "Don't use it"[^1] I'm quite wary of `xpunctuate`, tbh. Have you taken a closer look at it, yet, and can give an educated guess whether it inherits the problems of `xspace`?
  
[^1]: Citation needed, but David's take on it nowadays.

निरंजन replying to AnonymousRabbit

I didn't know this. After merging, I will definitely do this.

AnonymousRabbit replying to निरंजन

you know that you can create a backup key in your profile that you can then store in a password manager or something?

निरंजन replying to samcarter

Didn't receive notification for this. Also, have lost my account again. :cry: Hopefully Joseph merges it back.

Skillmon replying to samcarter

didn't have it configured for me, so never got those...

samcarter replying to CarLaTeX

I used to get emails for new messages which would ping me. That's currently not working for me.

CarLaTeX replying to samcarter

I have never get email notifications for new chat messages, though

CarLaTeX replying to samcarter

Received!

samcarter

@निरंजन A test message