@JosephWright Could you close this post: tex.meta.stackexchange.com/questions/7705/… because is a duplicate from Meta SE: meta.stackexchange.com/questions/45200/…?

I have a question for all of you.

What are your favourite tags?

Mine are: context expl3 latex3 luatex tikz-pgf

(By favourite tags I mean the ones which you have pinned in the sidebar on the front page)

@HenriMenke I have nothing at all there. What does it do when you pin a tag?

@UlrikeFischer Questions with those tags are highlighted.

@HenriMenke I have some of the packages I maintain and memoir plus math-mode, emacs and auctex

@UlrikeFischer ... and you can click them to quickly filter by them.

@HenriMenke none, I don't see the point to be honest, tags are often wrong until after a question has been answered anyway.

@PauloCereda good morning (10 a.m. here)

In l3 there is \mode_if_math:TF which is marked as fully expandable. As far as I know it is best to use \relax prior to \ifmmode which would make it non-expandable. Is this not necessary with \mode_if_math:TF?

@HenriMenke Ah. Well I don't care much about the tags. I mostly go by the title of a question.

@Skillmon no, issues are the same, well apart from the fact that the issues would mostly go if all definitions were using \protected, which would be the plan

@Skillmon Hi! 6:13 :)

@PauloCereda in the morning?

@HenriMenke I like fun :)

@Skillmon Yes. :)

@PauloCereda you wake early.

@Skillmon Today I am late. :) I usually start working at 5:30 :)

@PauloCereda how do you even survive?

@Skillmon I am used to it. :) Life in the countryside. :)

@PauloCereda I'm used to go to the university at 8 am. Thinking 'why did I come here so early?' and drinking litres of coffee...

@Skillmon :)

@Skillmon When I was a kid, our school started at 7:00, so I had to be ready at 6:30. For university, since I had to take 3 buses to arrive (almost 3 hours every day), I had to get prepared at 3:00. Now, for the shaky bus, I wake up at 4:00. :)

@AlanMunn: ooh a secret font package

Friends, an English question.

Note that the \rbox{arara:} suffix is immutable and consequently included by our tool in every lookup pattern.

Does it sound weird or is it incorrect?

@PauloCereda Is it really a suffix (in v3 it has been a line prefix)? For me as non-native speaker it sounds good though.

@TeXnician Thanks. :) It is a preffix for directives, but it is a suffix for patterns. Sorry for not providing the correct context...

I mean, if you are providing a new file type to be processed by arara, regardless of the line pattern, the arara: part will always be added at the end of this pattern...

@PauloCereda Ah, okay, I really should read the manual … wait, it's still incomplete ;)

@TeXnician You should say "finished your manual?" ;-)

@PauloCereda hard to tell without more context (it would sound weirdly formal if you went up to someone in the pub and said that but perhaps in a software manual it makes sense) I suspect I would say "arara" rather than "our tool", unless it's voldemort the tool that must not be named. Also the "consequently" doesn't follow (perhaps it would if I had read the manual to there: lots of things are immutable but not included in every lookup pattern. (@egreg's opinions on comic sans for example)

@DavidCarlisle One of the secretaries of our university likes to send emails in Comic Sans. Should we fire her?

\documentclass{article}

\usepackage{unicode-math}
\usepackage[pdfencoding=auto]{hyperref}

\begin{document}
\section{$\omega$}
\end{document}

Is this supposed to throw an error?

@TeXnician No, but…

@egreg … it does ;)

@egreg could be an interesting court hearing if s.he sued the university :)

@TeXnician Token not allowed in a PDF string

@egreg @TeXnician Seems like a case for \TeXorPDFstring (not sure about the capitalisation).

@egreg For me the more important issue is the Improper alphabetic constant. which wasn't there some months ago.

@HaraldHanche-Olsen all lowercase :)

@HaraldHanche-Olsen That's right, but usually it was just a warning. Not it throws the following for me:

! Improper alphabetic constant.
<to be read again>
\mitomega
l.7 \section{$\omega$}

?

@TeXnician Ah, I see. That's new to me as well.

@TeXnician loading any MIT stuff by chance?

@yo' Not that I would know of, the MWE is shown above. And the log is pretty normal, except for this.

@TeXnician I get the error also with texlive 2016. Are you sure it wasn't there previously?

@UlrikeFischer I'm sure that I haven't had it when writing the document (with TL17), but maybe it was a bug that no error was thrown, so I'm not too sure (the setup is gone, can't test on that).

@TeXnician oopsie. :)

@DavidCarlisle thanks. :)

@TeXnician Well I guess your document where longer then and perhaps you loaded something that hid the error. Perhaps I can look this afternoon.

No fuel, no food, lots of violence right now. Welcome to this forsaken country... :(

:(

@egreg you should reply in the same style

@DavidCarlisle @egreg show some class. reply in comic neue.

@HaraldHanche-Olsen that's for people who do things on the cheap, @egreg travels first class so he'd use fonts.com/font/microsoft-corporation/comic-sans/…

@DavidCarlisle ^^^^^

@egreg ^^

@DavidCarlisle It works not so neatly on a computer screen.

@egreg can get expensive, buying a new laptop after each letter

@PauloCereda creepy :)

@PauloCereda I agree with @DavidCarlisle. But I would remove the 'by' phrase altogether. I don't think it's needed. And the suffix/prefix thing is confusing (to me if it has a trailing colon it sure looks like a prefix). If it truly can be either one syntactically (eek) then I would call it an affix, although that might be unfamiliar for many.

@PauloCereda v v v

@AlanMunn boo :)

@AlanMunn Thanks. :)

@UlrikeFischer Rickrolled by a pelican?

@TeXnician -- i get the same thing (\mitomega) with tex live 2016. (that's our production version.) goes away if \texorpdfstring is applied.

@barbarabeeton Thanks for testing. As I've noted above it hasn't been there some months ago, so probably there was some other faulty code (in a package or somewhere else). I'll probably just fix my code :)

@PauloCereda No longer secret.

I have an issue with my local texmf: I had a symbolic link in ~/texmf/tex/latex/ on a folder foo containing folders bar and baz containing packages. Today I changed some stuff and replaced the symbolic link by a folder. New structure: ~/texmf/tex/latex/foo/ is a folder containing symbolic links to the folders bar and baz. Now the packages are no longer found by TeX.

@santimirandarp do you mean a LaTeX shirt or a latex shirt? Those are fundamentally different.

@TeXnician github.com/ho-tex/hyperref/issues/63

@UlrikeFischer Thanks for the investigative work.

German zoo escape: Lions, tigers and jaguar recaptured in Lünebach -- but a bear who also escaped from the Eifel zoo was shot dead. Our bear is mourning. bbc.com/news/world-europe-44332699

@UlrikeFischer Oh poor bear!

@UlrikeFischer do you want ho-tex push access? :-)

@DavidCarlisle I don't know how to repair it in this case so push access wouldn't help ;-(.

@UlrikeFischer just change random lines, and see if the users complain. That's what I do.

@UlrikeFischer oh no

@UlrikeFischer yeah, kill the bear and the lions (other zoo in Eastern Germany), because it's their fault, the flood destroyed the fence. sarcasm

@WillRobertson (@UlrikeFischer) can you set the effective font dimens in xetex?

@barbarabeeton ^^ :)

@PauloCereda -- perhaps justified. but justifiable?

@barbarabeeton :)

^^^ and another palindrome.

@barbarabeeton YAY

@PauloCereda YAY being palindromic is a much better response than your customary ooh

@DavidCarlisle ooh

@PauloCereda 4935

@DavidCarlisle Not to mention recursive. (Yet Another Yay)

@AlanMunn \def\YAY{YA\YAY}

@DavidCarlisle Actually I have doubts. One can change fontdimens but it seems to affect only the "tex" site, e.g. commands line \sqrt which uses the fontdimens, but not the shaping done by harfbuzz.

\documentclass{article}
\usepackage{unicode-math}
\begin{document}
\ExplSyntaxOn
\fontdimen 64 \l__um_font =30pt
\ExplSyntaxOff

$\sqrt[n]{x}$
\end{document}

@UlrikeFischer I saw it had 65 fontdimens so i did wonder, but how did you find it was 64, reading the source?

@UlrikeFischer ah, reading your comments backwards:-)

@UlrikeFischer I did wonder if this feature had been lost somehow when the switched to using the harfbuzz math layout. I wonder if I shoudl ask on xetex list....

@DavidCarlisle Speaking of which, no \expanded yet ...

@Sebastiano that's your 10000th question asking how to pick one font then change individual letters: the answer is the same for all of them, don't do that!

@JosephWright yes

@DavidCarlisle Sir David :-( of course but I like the fonts. :-(I like the characters of the book I wrote. It's my fixation.

nm

whoops, wrong room...

@DavidCarlisle I knew that I had changed at least one fontdimen once (tex.stackexchange.com/a/398179/2388) and I found the 64 in \__um_redefine_radical:. But I realize now that I never check other fontdimen.

Good evening to everybody.

@AaronHall wrong room, but I would say no, lol.

@UlrikeFischer Thanks for the appendix

@Sebastiano well it's simply the wrong thing to do, some human has spent hundreds of hours designing a coherent work of art and you are asking how to shred it to bits.

@DavidCarlisle I don't remember when they made the change and I don't have an old texlive here. I can test tomorrow in tl12.

@DavidCarlisle Of course, but with declared math symbol I can choose the characters that I like the most. The tastes are personal. I understand that many spend their time creating them but some are really ugly. @egreg also wrote it to me that you should never change the default characters. But there are several users who ask in some questions just to have specific characters.

@UlrikeFischer 2016 is same that's as old as I hav eon here

@DavidCarlisle I found this texdev.net/2013/03/12/…

@Sebastiano no users ask as often as you!(and i don't see why you can't re-use previous answers) . the question is "my math font is zzz and I want to change character qqq to com from font www" the answer is the same whatever values of zzz, qqq and www you pick a=so I don't see why you need to ask again?

@UlrikeFischer ah.

What do you guys think of pandoc?

@egreg, @JosephWright either of you got a pre-2013 xetex to hand? does the subscript get moved in:

\documentclass{article}
\ifx\Umathchar\undefined
\usepackage{lmodern}
\else
\usepackage{unicode-math}
\fi
\begin{document}


\sbox0{$x$}


\typeout{\expandafter\meaning\the\textfont2}
\fontdimen16\textfont2=20pt


  $a_b$
\end{document}

@DavidCarlisle Give me a second

@AaronHall never used it bit a lot of people do

Tangentially: Could html be as flexible as latex?

@DavidCarlisle Gets moved with 2012 release

@AaronHall No: it's a pure mark-up language

@DavidCarlisle ^^^^ TL 2012

@egreg bingo, thanks.

what about html combined with javascript?

@egreg and presumably not lowered on everything after that?

@DavidCarlisle Not with TL2013

@egreg harfbuzz it is then, I guess I need to ask on xetex list, that's pretty poor if you can't tweak the fontdimens

@DavidCarlisle Yup

@AaronHall you can but it's relatively painful. In particular you can use css absolute positioning to position each character at an exact position on the screen (which is basically what pdf.js is doing) but whether teh result is still what you mean by "html+javascript+css" isn't so clear, as it doesn't have any of html's better attributes of being able to reflow or be styled by the reader

@AaronHall of course there is plenty of room for middle ground betwee a 1990's style unstyled html document that just looks like whatever the browser wants it to look like and a document that uses absolute positioning and author specified web fonts everywhere.

@DavidCarlisle I can not combine them and find the symbols I'm looking for. From the 21 hour Italian I'm trying (even now) but I can not. This is why I inserted this question. I understand you but because in the book that I have brought these symbols there are and instead I can not create them? For me it is a challenge.

@Sebastiano well perhaps but I'm not answering those questions:-)

@egreg Ciao Prof.

Welcome to all users just entered

@DavidCarlisle :-) users like me always follow the advice of the best users:-)

@DavidCarlisle and then I sir David I are unlucky.

mail sent to xetex list...

Here's an example of a letter written in html - but it's not a typesetting, and how it would be printed would probably depend on the browser. developer.mozilla.org/en-US/docs/Learn/HTML/…

There aren't really native semantics for printing in html are there?

@AaronHall thesre has been a lot of work over the last year or so for print oriented css, browser support is increasing

@Sebastiano Ciao

@AaronHall w3.org/TR/css3-page

@AaronHall or xmlprague.cz/wp-content/uploads/www.xmlprague.cz/2018/02/…

@AlanMunn my new favourite line from Michael Flanders: it says MF at the top of the music. It doesn't stand for Michael Flanders. MF is a musical indication, it means the song should be sung... mit feeling!

@PauloCereda Not to be confused with mit Fehler.

@AlanMunn ooh

@PauloCereda YAY

@DavidCarlisle ooh paradigm shift

@Sebastiano Is tex.stackexchange.com/a/38601/36296 the effect you are looking for?

@DavidCarlisle thanks, very helpful.

@Sebastiano It is highly unlikely that the typesetter of that book picked a different font for each letter.