TeX, LaTeX and Friends

AndréC

08:23

@DavidCarlisle Thanks for him!

David Carlisle

spot the open with overleaf button

Ulrike Fischer

@DavidCarlisle ;-). What renders the script on the button? Harfbuzz probably?

David Carlisle

@UlrikeFischer yes in firefox at least, incidentally I think that sort of thing is one reason why they try to force the indic scripts to have metrics that match the latin as far as possible. In pure text you can fiddle with the line spacing, but in translating an existing UI you have less flexibility.

Paulo Cereda

quack

Harald Hanche-Olsen

@PauloCereda Have you seen today's Non Sequitur?

Paulo Cereda

08:37

@HaraldHanche-Olsen ooh

David Carlisle

@PauloCereda न्याहारी

Paulo Cereda

@DavidCarlisle oh no

Harald Hanche-Olsen

@PauloCereda 544 to go before the next milestone

Paulo Cereda

@HaraldHanche-Olsen ooh a new milestone

Ulrike Fischer

@DavidCarlisle yes, but imho one should try to adapt in both directions. E.g. for the malayam in the talk one could also think about how to design a latin font with larger descender which fits visually better to the script.

Paulo Cereda

08:47

@UlrikeFischer quack, miss you <3

David Carlisle

08:58

@UlrikeFischer sure but if you have visually laid out your page with everything aligned then changing the grid to accommodate one translation may be tricky

Ulrike Fischer

@DavidCarlisle yes, for a gui this is quite right. I was more thinking about printing.

Joseph Wright

09:56

@UlrikeFischer My first answer uising hooks

Paulo Cereda

@JosephWright L3 goes fishing

:)

cis

In this table, the 3rd column indicates a color.

How can I do that the previous color is kept as long as no new one is defined?

\documentclass[a4paper]{article}
\usepackage{pgfplotstable}
\pgfplotsset{compat=1.17}
\begin{document}
\pgfplotstableread[col sep=comma, header=false]{
a, 1, blue
b, 2, cyan
c, 3,
d, 3,
e, 5, red
f, 6,
g, 7,
h, 8,
i, 9,
j, 10,
k, 11,
}\mydata

\pgfplotstablegetrowsof{\mydata}
\pgfmathtruncatemacro{\RowsNo}{\pgfplotsretval-1}

Actual:
\pgfplotsinvokeforeach{0,...,\RowsNo}{%%
\pgfplotstablegetelem{#1}{[index] 2}\of{\mydata}
\pgfplotsretval,
%\colorlet{barcolor#1}{\pgfplotsretval}
}%%

Target:
blue, cyan, cyan, cyan, red, red, red, red, red, red, red,

David Carlisle

@cis not sure of best pgf syntax but keep a global variable of the colour you want and in each cell set the colour to that, then your colour switch doesn't actually change the colour directly just globally change the variable.

cis

@DavidCarlisle
I don't want to have to write the color everywhere. Only once, for example red, then red should be kept until e.g. yellow stands.

David Carlisle

@cis yes as I said, set up your table so that it sets the colour at the start of every cell.

cis

10:08

@DavidCarlisle @DavidCarlisle Yikes, I don't understand that.

0

Q: pgfplotstable: Read out and define colors from table

In a table, the 3rd column indicates a color. \pgfplotstableread[col sep=comma, header=false]{ a, 1, blue b, 2, cyan c, 3, d, 3, e, 5, red f, 6, g, 7, h, 8, i, 9, j, 10, k, 11, yellow }\mydata How can I do that the previous color is kept as long as no new one is defined? I don't want to have...

Joseph Wright

@egreg Life is nice and easy with the new hooks

egreg

10:37

@JosephWright I'm sure of!

Joseph Wright

11:32

@egreg, @UlrikeFischer, @DavidCarlisle I'm thinking of a blog post on using xparse: try to give some guidance on good interfaces (as opposed to 'random collection of arg types')

Ulrike Fischer

11:54

@JosephWright nice ;-). I tried (while updating the latex-dev answer) to add a tcolorbox frame to a figure and that didn't work - we need more hooks ;-)

David Carlisle

13:14

@JosephWright we could consider learnlatex.org/xparse-and-expl3/en/lesson-01

Skillmon likes topanswers.xyz

@JosephWright you mean \foo<abc>(def){ghi}_{jkl}^{mno}right_delimited|is not good?

Joseph Wright

@Skillmonlikestopanswers.xyz Yup :)

@Skillmonlikestopanswers.xyz I will of course mention no names

@DavidCarlisle Yes, or en/expl3/lesson-01 or en/expl3-01?

@DavidCarlisle Depends on the scope we want, but all doable yes

Skillmon likes topanswers.xyz

@JosephWright can we also get hooks in tabular at the start of lines, end of lines, and start of cells as well?

@JosephWright I forgot the most important argument type in that example! \foo{optional_argument_in_braces}.

Joseph Wright

@Skillmonlikestopanswers.xyz One for LaTeX-L

@Skillmonlikestopanswers.xyz :)

egreg

@JosephWright Don't forget to mention tex.stackexchange.com/q/470819/4427

Joseph Wright

13:23

@Skillmonlikestopanswers.xyz We are actually not loading all of xparse in the upcoming changes

Skillmon likes topanswers.xyz

@JosephWright I know :) But this might add to the confusion of some users (just so you're warned)

Joseph Wright

@Skillmonlikestopanswers.xyz I have a working title: g falls under 'the ugly' (I'll let you guess the full title!)

Paulo Cereda

@JosephWright ooh and the good and the bad

@egreg ^^

Skillmon likes topanswers.xyz

@PauloCereda +and

Paulo Cereda

@Skillmonlikestopanswers.xyz ooh

Joseph Wright

13:28

@PauloCereda Indeed

Paulo Cereda

@Skillmonlikestopanswers.xyz you got a secret duck message :)

David Carlisle

@Skillmonlikestopanswers.xyz not easily actually unless you only allow expandable code in the hook. If code needs to be at the start of a cell but two packages add to the hook the second set of code isn't at the start any more if the first does anything non expandable.

Skillmon likes topanswers.xyz

@DavidCarlisle that's what the end of row hook is for, unexpandable code does no harm there. And if one needs to do something unexpandable in the start of line hook, one could put it in \noalign (at least most of the time/the unexpandable part of it).

@DavidCarlisle and I know, but currently I maintain a custom tabular environment which got those hooks (not at the start of each cell, though, that's one for >{<stuff>} in most cases anyways).

David Carlisle

@Skillmonlikestopanswers.xyz yes if it's your hook and your package it's not an issue but the general hooks are supposed to allow multiple packages to hook there and (while we insist on using \halign) it's just hard to do anything sensible until tex has stopped looking for \omit

Skillmon likes topanswers.xyz

@DavidCarlisle I auto-style the headrows with those hooks, works pretty well so far (there is one minor bug: if the last line of the tabular is a headline, one needs to end it with \\ ).

David Carlisle

13:38

@Skillmonlikestopanswers.xyz for start of row there are actually two places that make sense, in a custom \noalign so safer but inside a group, or at the start of the first cell in the row, just before the hook for that cell.

Skillmon likes topanswers.xyz

@DavidCarlisle and I know what the purpose of those hooks is. I'd argue that the hook-mechanism for tables should be different: Create custom tabular environments in which the hook contents are set, such that a nested tabular can have empty hooks (that last one is important)

@DavidCarlisle I created just a single hook which injects after the effects of \\ for the start of line hook.

David Carlisle

@Skillmonlikestopanswers.xyz yes been there:-) blockarray, colortbl, tabu, ... all essentially have a package maintained hook for doing similar things with row-scope, but how feasible it would be for them to share a common row-scope hook I do not know

Skillmon likes topanswers.xyz

@DavidCarlisle neither do I, would have to test things.

David Carlisle

@Skillmonlikestopanswers.xyz so is it expandable content? what do you do about \multicolumn in the first cell?

Skillmon likes topanswers.xyz

@DavidCarlisle the things I inject expandably test for the current row number and inject rules and rowcolors based on this, so \multicolumn is no problem here. But that's just my small use-case, of course others could have other use-cases, I can only guarantee that my current use-case isn't doing very bad things :)

The interesting thing is that this way my environment works for both ordinary tabular and longtable without changing anything from the users point of view, except for using the long key in an optional argument. The style of the table will look identical.

David Carlisle

13:44

@Skillmonlikestopanswers.xyz longtable is tabular by the time you get that far in by design most tabular extension packages should "just work" with longtable

Paulo Cereda

@DavidCarlisle longtable is awesome

David Carlisle

@Skillmonlikestopanswers.xyz yes so if that was a general hook and someone used it to inject x at that point the code \hline that you try to add in the same hook will fail. It doesn't encourage you to want to share a common hook:-)

Skillmon likes topanswers.xyz

@DavidCarlisle For my environment,

\begin{CustomTable}[head=2,caption={stuff}]This & is & the & head \\ This & is & the & head \\ This & is & the & body \\ This & is & the & body\end{CustomTable}

will look exactly the same without any user change except long in the key=val argument.

@DavidCarlisle if someone adds a hook that gets somehow executed before mine, I can't do anything about it either. Still I'd argue that not having to hook into the code for each package would be beneficial (the same way as you got auto-ordering in the current hook mechanism).

David Carlisle

Jan 7 '14 at 13:21, by David Carlisle

@egreg like its author, probably

Paulo Cereda

@DavidCarlisle ooh

Alan Munn

14:12

Can someone who knows about math more than me check the math setup I've recommended here tex.stackexchange.com/q/555446/2693. I've adapted it from something I've used which is appropriate for linguistic semantics, but may not be for regular math. Corrections welcome.

David Carlisle

@AlanMunn possibly Stix Two Math (ie the official release, a decade late, not xits-math Khaled's unofficial version to fill that time gap)

or of course the OP could not load unicode-math and use newtxmath (or even mathptmx) math fonts

Alan Munn

@DavidCarlisle No, in fact that's the problem. The clones are being rejected out of hand by the submission system. I hadn't realized that there's now an official Stix release.

David Carlisle

@AlanMunn I presumed if it uses a real times roman for text that box would be ticked, if it allows xits-math font in addition I don't see why it wont allow mathptmx font

Alan Munn

@DavidCarlisle Actually that's probably true. So the need for unicode math is maybe overkill.

David Carlisle

@AlanMunn wikipedia says stix 2 was released in 2016 doesn't time fly:-)

Alan Munn

14:24

@DavidCarlisle I didn't get the memo. :)

David Carlisle

@AlanMunn quite possibly you could have the original document and just set a full stop in white somewhere on the first page in real times roman and the checker will be happy

Paulo Cereda

@DavidCarlisle ooh

Alan Munn

@DavidCarlisle Yeah, that's probably true, but I guess gaming the system isn't the best answer to give.

David Carlisle

@AlanMunn :-)

Paulo Cereda

@AlanMunn ooh video games

@DavidCarlisle nookipedia.com/wiki/Tex

David Carlisle

14:31

@PauloCereda how much of a load on the system is it to add a four more lines of javascript test to the runlatex.js used at learnlatex.org

if one of the lines is 5576 characters long

Paulo Cereda

@DavidCarlisle oh my

Alan Munn

@DavidCarlisle Thanks, I've updated the answer to include both the unicode-math and newtexmath setup.

David Carlisle

if(t.indexof("{marathi}" != -1) {
    addinput(fm,"encoded_snip[]","%%\n%% This is file `marathi.sty',\n%% generated with the docstrip utility.\n%%\n%% The original source files were:\n%%\n%% marathi.dtx  (with options: `package')\n%% \n%% -------------------------------------------------------------------------\n%% आज्ञासंच:      marathi\n%% लेखक:       निरंजन\n%% आवृत्ती:      १.२  (१६ जून, २०२०)\n%% माहिती:  लुआ-लाटेक् व झी-लाटेक् ह्यांच्यासह मराठीचा सुलभ वापर करण्यासाठी.\n%% दुवा:   gitlab.com/niranjanvikastambe/marathi\n%% अडचणी:  gitlab.com/niranjanvikastambe/marathi/-…

Alan Munn

@PauloCereda Smug seems very appropriate for the TeX crowd.

Paulo Cereda

@AlanMunn :)

cis

14:54

Should the second value have any effect?

{\fontsize{73pt}{91.25pt}\selectfont abc  \\ cde}

{\fontsize{73}{5191.25pt}\selectfont abc  \\ cde}

I don't see any effect.

TeXnician

@cis Have you tried actually ending the paragraph?

2

Alan Munn

@cis You need \par to see the effect.

cis

@TeXnician This way?

{\fontsize{73}{5191.25pt}\selectfont abc \par cde}

TeXnician

@cis Alternatively {\fontsize{73pt}{91.25pt}\selectfont abc \\ cde\par}

Alan Munn

@cis No, {\fontsize{73pt}{91.25pt}\selectfont abc \\ cde\par}

cis

14:58

Ahh, I think, I have to test:

uvw {\fontsize{73}{5191.25pt}\selectfont abc \par cde \par} pqr

@AlanMunn @TeXnician @AlanMunn ok, thx.

David Carlisle

@cis par or a blank line (there are loads of answers on site about that) a paragraph is broken into lines based on the settings at the end of the paragraph so if you end the group early you get the changed font but the normal paragraph settings

cis

@DavidCarlisle I do not check this. It should be

\fontsize{<y>pt}{1.1 ... 1.3 * <y> pt}\selectfont

I think. But looks strange all.

So I do not know, whether this is correct, what I have done here:

\documentclass[a4paper]{article}
\usepackage{lmodern}
\usepackage{tikz}

\pgfkeys{/cis/.is family,  /cis/.cd,% ==================
/cis/.search also={/tikz,/pgf},
% Fontsize =============================
     bskipratio/.initial=1.25,
     bskipratio/.get=\bskipratio,
     bskipratio/.store in=\bskipratio,
     fontsize/.initial=,
     fontsize/.get=\myfontsize,
     fontsize/.store in=\myfontsize,
     fontsize/.code={%
     \pgfmathsetlengthmacro\bskip{\bskipratio*#1}%
     \fontsize{#1}{\bskip}\selectfont%

David Carlisle

15:15

what do you want uvw {\fontsize{73pt}{3pt}\selectfont abc \par cde \par} pqr to do??:-)

@cis why don't you put a \par after #2 in the definition before you close the group?

cis

@DavidCarlisle I don't know if I always want to have a \par there.

Paulo Cereda

15:48

Sometimes, George loves to scare Peppa with Mr. Dinosaur!
- Grrrrrr
- Eek! 'Tis scary!

WAIT A MINUTE

@JosephWright ^^

David Carlisle

16:19

@cis you should probably not be setting the font size in that case.

Joseph Wright

@PauloCereda Grr, dine-o-saw

Paulo Cereda

@JosephWright ooh

Ulrike Fischer

16:43

@DavidCarlisle what was the magic command to get learnlatex to run xelatex-dev and show the log??

Ah found it.. %!TEX xelatex-dev and %!TEX log

Skillmon likes topanswers.xyz

17:28

There is a package for ComicSans as maths font in LaTeX !!!11!1!!1!!!!elf

2

Paulo Cereda

@Skillmonlikestopanswers.xyz oh no

Skillmon likes topanswers.xyz

mirrors.ctan.org/fonts/comicsans/comicsans.pdf

@PauloCereda ^^^^

Paulo Cereda

@Skillmonlikestopanswers.xyz oh

Skillmon likes topanswers.xyz

@PauloCereda the package is contained in MikTeX.

Ulrike Fischer

@DavidCarlisle we broke catoptions ...

David Carlisle

17:39

@UlrikeFischer is "good" the right response?

2

@Skillmonlikestopanswers.xyz yes @egreg wrote it, I think.

Paulo Cereda

@DavidCarlisle good

Skillmon likes topanswers.xyz

@DavidCarlisle I think it is.

David Carlisle

@UlrikeFischer did the question that I answered work before?

Ulrike Fischer

17:57

@DavidCarlisle what means before here? It breaks for me also without the dev release.

Joseph Wright

@UlrikeFischer I've re-read the pgf code for color in dvips, and I see how to split the stacked/non-stacked situations. I think that's the best longer-term plan: I'll just do it, and probably commit on master

David Carlisle

@UlrikeFischer you said we broke it, I mean did it work in tl2019 or earlier?

Joseph Wright

@UlrikeFischer Might take a little while, though: I need to think carefully :)

@UlrikeFischer ???

David Carlisle

@UlrikeFischer you said you had seen some of the initial discussions on the package, have you any thoughts on github.com/learnlatex/learnlatex.github.io/issues/…

Ulrike Fischer

@DavidCarlisle oh not your answer yesterday. It now simply breaks because it patches \document and so every use will give errors.

David Carlisle

18:08

@JosephWright another one !

Ulrike Fischer

@DavidCarlisle how can I find the examples? In the github?

@DavidCarlisle chinese next ...

David Carlisle

@UlrikeFischer well for a setup that works, try the one copied to davidcarlisle.github.io/ll/mr/help question is should it not have the package and say text in English instead

@UlrikeFischer or in particular here(but you need to add the TeX comment) niranjantambe.github.io/learnlatex.github.io/mr/extra-01#memoir

Ulrike Fischer

18:33

@DavidCarlisle Looks as if lualatex is broken. I'm just updating texlive to check offline.

David Carlisle

@UlrikeFischer yes see my comment in the marathi issue he asked me to update texlive so I did but that broke marathi.sty in luatex

Ulrike Fischer

@DavidCarlisle he forgot to load fontspec in the luatex branch - he probably thought babel would do it as polyglossia (which he use for xelatex) does it.

David Carlisle

@UlrikeFischer it was working this morning:-)

Ulrike Fischer

18:55

@DavidCarlisle well there was a package update today ;-)

Joseph Wright

19:06

@DavidCarlisle Wow

David Carlisle

21:38

@JosephWright usage picking up since tug2020:

Wed Jul 29 21:23:12 UTC 2020
  Number of distinct users:     13
  Number of document requests:  80
  Number of documents returned: 55
  Number of unique user agents: 12
Tue Jul 28 23:42:11 UTC 2020
  Number of distinct users:     17
  Number of document requests:  36
  Number of documents returned: 30
  Number of unique user agents: 13
Mon Jul 27 23:51:19 UTC 2020
  Number of distinct users:     9
  Number of document requests:  93
  Number of documents returned: 72
  Number of unique user agents: 8

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$TeX - LaTeX$ TeX, LaTeX and Friends