Thanks very much for your help today @egreg and @DavidCarlisle!

@MarcoDaniel Fixed on CTAN

@barbarabeeton vvv

data.stackexchange.com/tex/revision/645826/806300/corruption

I think that finds all the pages with a single backslash (2853 of them) but (a) I don't really do SQL and (b) it would be more useful to have links to each question or answer separately, if anyone (@PauloCereda ?) could make a modified query it might be useful

@barbarabeeton that is "single backslash and 4 spaces"

@DavidCarlisle @barbarabeeton I'm doing tex.stackexchange.com/questions/80075 which shows a curious fact: one of the answers is not affected, but the revision dates are comparable.

@egreg yes I've noticed that quite a bit going past, it's hard to see a real pattern in when the corruption happens.

@egreg Good morning, prof. :-)

@egreg do you mean this one? tex.stackexchange.com/a/80078/1090 note it has no \\ at ends of lines, they all have a space after

@DavidCarlisle In Sicily when we say someone dear is intended as a sign of respect, esteem, it is like saying ... very kind. :-) Do not worry, do not write more. Hi and Goodmorning.

@DavidCarlisle Hello, sorry again. What is the best editor for LaTeX? I often use TeXnicCenter :-(

@Sebastiano There is no answer to that, it's whichever you like best.

@Sebastiano formal written letters in English start Dear Sir, or sometimes "Dear David" etc but not usually electronic communication but "Dearest" is (now) only ever used as a sign of affection

@TorbjørnT. there is only emacs

@DavidCarlisle Commands (like the military) :-)

@TorbjørnT. Good Morning. I have seen at the link beebom.com/best-latex-editors Texniccenter is not active from feb 2014

@Sebastiano As with almost any other such list you find on the internet, that is one mans subjective opinion. Here is another list: tex.stackexchange.com/questions/339/latex-editors-ides

@TorbjørnT. What can you use?

@Sebastiano I have used emacs almost every day since 1987, for tex, for email for most of that time although not currently, for coding xml, xslt, C, etc.

Meanwhile I greet you and David. I have to go. Greetings. Thanks a lot Dear SIr David

@Sebastiano Huh? What I do use is Emacs and TeXworks (depending a bit on circumstance). There are plenty of others I could use (see the link I posted above).

@Sebastiano basically use whatever editor you like (except vim) (@PauloCereda)

@PauloCereda @barbarabeeton @egreg @JosephWright I think this is the query I want (4626 posts) data.stackexchange.com/tex/revision/645996/806470/corruption

@DavidCarlisle <3

@DavidCarlisle I just woke up and there's a SQL query waiting for me, this is spooky. :)

@PauloCereda is my SQL at all reasonable I was going to post it to the stackexchange representative in the meta question on \\ corruption but I just made it up by assuming it was just emacs lisp really so I'm not at all convinced it does what I think it does.

@DavidCarlisle I will check and report.

@PauloCereda thanks (see the second version in the comment link just above)

@DavidCarlisle roger.

@DavidCarlisle Yes. it seems that it prevented the change

@DavidCarlisle: Sir David of NAG. :)

@PauloCereda @barbarabeeton @JosephWright @egreg no, now I can search for a single \ I don't need to search for a space before the backslash as a way of avoiding \\ so that's data.stackexchange.com/tex/revision/646018/806492/corruption and 8163 posts found ....

@DavidCarlisle That search seems to give some false positives though, e.g. tex.stackexchange.com/questions/358618/… as a random example.

@DavidCarlisle I guess we really need to get staff action: perhaps if it can be done by regex ...

@JosephWright any chance you could ping then again as site mod, 8 thousand wrong posts isn't great. Trouble is of course there are a few cases that really do have xxx\ xxx` which were never \\ but to be honest if you fixed 8000 and made 100 wrong by a global edit it would be a net gain

@JosephWright Sorry for asking again. In your current step version the issue is the same github.com/josephwright/biblatex-ieee/blob/master/ieee.bbx#L316

@TorbjørnT. ooh that one is really wrong not just a use of x\ xxx that really had a single bs and four spaces. Perhaps my SQL is wrong, I don't know SQL at all....

@MarcoDaniel Forgot to push to GiutHub from my laptop (I did the fix over breakfast): I'll do it when I get home

@JosephWright :-)

@DavidCarlisle If we can come up with a regex search/replace I'll push the Powers

@JosephWright well (^[\\])\\_{4} -> \1\\\\\n ____ would fix the vast majority (_ = space)

@TorbjørnT. oh that's the wrong one without the replacement for `\` hang on...

@TorbjørnT. (@PauloCereda) data.stackexchange.com/tex/revision/646030/806504/corruption (7322 hits)

@DavidCarlisle looks good

@DavidCarlisle I'll mail the Powers later

@JosephWright no direct line?

@PauloCereda No

@JosephWright those bastards :)

@DavidCarlisle Is that \n then a space then four more spaces in the replacement?

@DavidCarlisle @JosephWright More than 7000 posts, with say 10 a day in order not to clutter the main page, would require two years. Well, some of those posts are answers to the same question, so we could estimate just a year. Too much indeed.

@JosephWright no sorry just \n then four spaces (exact syntax of course depends of regex variant, \n being whatever adds a literal newline

Hi, I am looking for a list of things (packages..) which do not yet work yet on lualatex. Any hints?

@JonasStein anything using fonts either probably doesn't work or works but shouldn't be used. pretty much everything else should work the same way

@JonasStein apart from packages that simply haven't been updated for the name changes in pdftex extensions which mostly shoudl be covered by loading luatex85 package first

ok, thank you @DavidCarlisle

@UlrikeFischer: MAIL ARRIVED

@DavidCarlisle, @egreg, @barbarabeeton I've mailed our 'contact' on the staff directly re. the backslash issue and regex fix suggestions

@JosephWright thanks

@JosephWright -- wow! just got into office, and got pinged before i even shut down the screen saver. thanks! (keeping fingers crossed.)

@egreg -- oh, happens frequently (as @DavidCarlisle noted). what i've noticed that's even more peculiar is the corruption of one or more instances in a q or a where one or more other instances have not been corrupted. don't see it often, but have definitely seen it. bah, humbug.

@barbarabeeton I suspect that there is usually (always? sometimes?) white space after the \\ that probably guarded it from the original corruption (that was the case in the one egreg just linked to)

@DavidCarlisle -- oh, goody! that gives a list by date, so we can identify the latest. i'm looking -- have already found two later than 2013-12-06 as listed in the meta question. have gotten to 2013-12-16 so far; am only spot checking, last one reported for a day. will keep on for another few minutes, and update meta question then.

@barbarabeeton Yes, my SQL is as good as my German but I can guess what order by CreationDate does:-)

@DavidCarlisle you are a legend :)

@DavidCarlisle, @JosephWright, @egreg -- have found what may be the latest: 2013-12-20 tex.stackexchange.com/a/150816. adding insult to injury, this answer ends with " For better aligning you may add space after he last line of your tabular e.g. by adding an optional parameter to \\."

@PauloCereda Which mail?

@UlrikeFischer X-mas. :) I also sent an e-mail to you and poked you on Threema. :)

@PauloCereda Just saw it. That's amazing!!!

@UlrikeFischer We ducks have a lot of faith. <3 Thankfully the parcel had arrived safe and sound!

@s__C Is tex.stackexchange.com/questions/26496/… helpful?

@TorbjørnT. thanks but it doesn't really solve my issue. I asked a proper question now for that specific aspect.

ok after writing a PhD thesis, a dozen papers and a lot of TeX.SE answers I still get the simplest problems

not too often, luckily :)

now I have a \begin{table}[H], somewhere later a regular \begin{table}, my second table get pushed to the top (which is fine) but gets a higher number than the H table (which is not fine)

@Marijn You mean the counter? I didn'r get the higher number...

yes the counter

I don't want to reset the counters manually if possible

How are you defining your \label/\caption pairs?

I do want LaTeX to number things in presented order

begin table, begin/end tabular, caption, label, end table

the problem seems to be the H placement of the first table, which causes the tables to be displayed in different order than in the source

sort of related to tex.stackexchange.com/questions/7026/preserve-figure-order, but not exactly

@Marijn I don't understand, by higher number, you mean, the increment.

If the H table is defined first, it will get x, further y tables will get x+y

Unless you mean you want the labels to match the display order...

yes, that is what happens

and exactly, that is what I want

the x+y table floats to the top of the page, but the H table (=x) is in the middle

therefore, first 'Table 2' is displayed and then, further down, 'Table 1'

I'm trying to format \author{} using titleing. I would like the contents of \author to be centred if they fit on one line, but left aligned if longer than one line. Is there a simple way to achieve this?

@AlanMunn (centred = <3)

@Marijn Ah I see. Sorry, I am too stupid to help on this issue, I am here mostly because of ducks. :)

I'll ask a question :)

hope it's not a duplicate, searching is a bit difficult with the H modifier

@Marijn that is a documented feature of H, it makes it a non-float so real floats may float past it.

@PauloCereda ducks should be good at floats

@DavidCarlisle ooh

@DavidCarlisle I understand that, but when something floats past it I want the counter to change accordingly

@DavidCarlisle, @JosephWright: sorry to hear about the shooting. :(

@PauloCereda Currently sounds like shots fired by police in response to an incident

@JosephWright I read about 2 deaths.

@Marijn that isn't how floats work, the entire content is set in a box at the point it is encountered in the file, the content never changes depending on the final position. H opts out of that so in general you get worse spacing and potentially wrong numbers unless you manually correct.

@PauloCereda haven't seen any news since this morning

@DavidCarlisle oh

@PauloCereda Appears there has been at least one fatality, yes

@JosephWright Yes. I don't have BBC here, only CNN...

@DavidCarlisle I still hope it can be done :) question here: tex.stackexchange.com/questions/359849/…

@Marijn posted an answer (you probably won't like it:-)

He guys

How can I write a norm with a "low" (normal) dot?

I tried several things

\Vert .\Vert

@ShaVuklia Aloha!

Hi @Paulo :)

\| \dot\| doesn't help either

I wouldn't like the dot in the middle, but really low, like this: .

\lvert .\rvert doesn't work either

Phew, @egreg is here to save the day! :)

@PauloCereda With a glass of wine in front of me. :)

@ShaVuklia I am not dot-savvy, ducks only know specific parts of mathematics. :)

@egreg ooh :)

Hahaha, but we use dots all the time:P

@PauloCereda Do you know Pick's theorem? It was the topic of my lecture.

@egreg ooh speaking of dots... :)

@PauloCereda :-D

@ShaVuklia I was in Barcelona in 2015 and got curious about an interpunct between a double ell. Later on, I found out the dot was used to cancel the characteristic LL sound and reduce it to a normal L sound. So why didn't they take one L instead of complicating stuff? :)

Idk, maybe it looked more hip that way:P

anyhow, I've posted the question in the forum!

\documentclass{article}

\usepackage{amsmath}
\usepackage{amssymb}
\DeclareMathOperator{\thingy}{\cdot}

\begin{document}
$\vert \thingy \vert$
\end{document}

@ShaVuklia ^^ does this help?

Must dash, @egreg will ask for my head in a table!

:D

@PauloCereda Please, behead yourself. ;-)

@egreg ooh I can try with recursion. :)

@PauloCereda \newcommand\thingy{{\,\cdot\,}}

@egreg <3

@PauloCereda Look at who's asking questions!

@egreg Oh my, something is going really bad!

@PauloCereda Well, we're real TeX experts, apparently.

@egreg :)

@AlanMunn -- if someone hasn't already answered about the centered vs. "paragraphed" author, that is how captions are handled in the ams document classes. maybe you can use that as a starting point. (the essence is: save in an \hbox; if that fits on one line, do it, otherwise reset in a \parbox.)

@JosephWright, @DavidCarlisle -- condolences on the tragedy near the parliament. the world has just gone crazy.

@barbarabeeton :(

@barbarabeeton just watching the news now (just got home) 4 dead ...

@barbarabeeton At present sounds like the actions of a single individual (though details still not entirely clear)

@barbarabeeton Thanks, barbara, that's more or less what I did in the end.

@PauloCereda Canada would like you to note they are Canada geese, not Canadian geese: most have duel citizenships

@JosephWright: Are there any updates for implementing a \ProcessKeysOptions in l3keys? tex.stackexchange.com/questions/15802/…

@MarcoDaniel No, should there be?

@JosephWright I don't know what have happened in the last years ;-) -- Using l3keys2e isn't my personal favorite.

@MarcoDaniel Can you outline the issues?

I am playing around ;-) I have the following done -- Now I have to initialise everything

\keys_define:nn { logicproof }
    {
      line-number .int_set:N             = \c@lp@line        ,
	  line-number .default:n             = 0                ,
	  %
	  nested-subproof .int_set:N         = \c@lp@total@nests ,
	  nested-subproof .default:n         = 0                 ,
	  %
	  width  .dim_set:N                  = \lg@proofwidth    ,
	  width  .default:n                  = \linewidth        ,
	  %
	  outer-env .choices:nn              = { tabular , tabularx }
	                                       {

@MarcoDaniel I wouldn't use defaults for most of those values: they don't feel like they should be given without a value. Of course, it's your call ...

@JosephWright It's just playing. I want to become familiar with syntax. Thanks for the hint. I will change this.

@MarcoDaniel People seem to mix up default and initial (and for the latter I normally use \keys_set:nn)

@JosephWright For my understanding: Using .initial:n would mix the commands \keys_define: und \keys_set: -- If so than it isn't mine

@MarcoDaniel Yes, all true

@JosephWright Thanks.

@DavidCarlisle I have a feeling that comment might go back to Leslie

@JosephWright :-) You mean any comments we wrote are more detailed and insightful?

@Canageek I saw the the column your gf pointed you to. It showed up in various of my fb friend's feed. We all thought it was funny that the URL is word-processing-hell but the title of the piece is Word-Processing Misery.

@DavidCarlisle Is there a simple way to redefine allow a tabular to use something other than \\ as the tabularnewline so that \\ can have another meaning inside the table?

@AlanMunn Why don't you use array package and \tabularnewline?

@UlrikeFischer Does that allow \\ to be something else?

@AlanMunn Sure, if you e.g. use \centering in the last tabular cell \\ has a different meaning, that's why you need \tabularnewline

@UlrikeFischer Ok. Thanks.

@AlanMunn that's why I added \tabularnewline :-)

@DavidCarlisle Yes, I realise that now. Stupid question. :) It turns out I don't actually need it anyway.

hi

anyone going to BachoTeX?

@barbarabeeton You probably will see this anyway but one for your list of features