@DavidCarlisle Oh, so you are really doing some work beside the TeXing. :P

@DavidCarlisle Sometimes very wise...

When I choose an option such 10pt 11pt 12pt in documentclass{book}, I make a change to the command @ptsize{0}, as I saw in book.cls. But actually, if I am not wrong, font size is chosen according to \fontsize{size}{skip}. I haven't seen any fontsize command in the file book.cls. Then how latex changes the font size? I am asking because I want to make sure that I know what skip latex is using when I specify an option like 11pt.

@tush the class will load a size11.clo (article.cls) or bk11.clo (book) with the various sizes.

you find the definitions of the commands in latex.ltx: \def\@xpt{10}\def\@xipt{10.95} \def\@xiipt{12}

I suspect the UK now is a big Monty Python sketch.

@samcarter ooh

@PauloCereda Dodos are quicker than ducks.

@PauloCereda Also, it is extensible recipe fixing time:

@mickep ooh

@mickep ooh

@mickep only "Sometimes"? I'm hurt:(

@DavidCarlisle Well, can be interpreted in many ways. :)

@DavidCarlisle ooh old people

Grrr, I have to remove font Iosevka. luaotfload churning during the last 12 minutes (with no progress bar, ouch).

@Rmano blame @UlrikeFischer

@DavidCarlisle Had a chance to look at my PRs? OR do I blame @UlrikeFischer for that too? ;)

@JosephWright No I got mml work last night will have time this evening,

@DavidCarlisle :)

@DavidCarlisle Thanks

@DavidCarlisle Nothing yet from the request you made - guess the contact is busy

@JosephWright I approve your first one. The other one -- well, team should discuss this :P

@Skillmon You like the 'tidy up'? (I've got 4 PRs open at the moment ... so numbering them might not agree between you and me :)]

@JosephWright no, the "move handler to ltkeys" one. :)

@Skillmon That's the 'tidy up' one, yes :)

@Skillmon I thought you'd like it

@Skillmon 'Interface' works for you I guess

@JosephWright just memory mix-up between one of the commit notes and the PR title.

@JosephWright I wondered about that one. What it is actually doing?

@UlrikeFischer Much of what it says: @Skillmon pointed out that the existing structure puts the detail of calling \ProcessKeyOptions in ltclass rather than ltkeys; the change means that there is cleaner separation

@UlrikeFischer Side effect of that is that it's possible for other keyval handlers to be used ...

@JosephWright ah, that's why he wanted it?

@UlrikeFischer Might be ...

@UlrikeFischer It definitely is a cleaner approach, so I'm happy to back it for that reason alone

@UlrikeFischer no, that can't be the case :P

@JosephWright it's fine, I only wondered why, simply cleaning up is normally not something people are asking for ;-)

@UlrikeFischer in tex.stackexchange.com/questions/662544/…, did you mean "can't change"?

@UlrikeFischer to be honest: Yes, I'd prefer if I could also parse future options without hacking kernel commands, so that's definitely a plus for me. But the new code needs less \expandafter, has cleaner separation of means, and should be a tad bit faster while costing fewer tokens (not a restriction for kernel stuff nowadays, I know). So it is better in every way, imho.

@Rmano can't have been me, I never confuse can and can't.

@UlrikeFischer well, if I had seen the original PR in time I would've pointed these changes out as well (or maybe I did point it out, but only in an email to Joseph, not sure about the timing of events)

@Skillmon Quite, plus I spotted an incorrect usage in a message

@UlrikeFischer ;-)

@JosephWright ah I built the wrong one, I built a tuneup format and unused option handling didn't change....

Any Windows users around who use R?

@AlanMunn only windows user. But what is the problem?

@UlrikeFischer We've tried deleting the listed file form the cmd window but that didn't seem to help. I don't know enough about windows any more to figure out how to solve this.

@AlanMunn Is that the full error for sure? Reason why I ask: the file name it suggests should be removed looks super weird

Looks like it's the right file, huh. See: stackoverflow.com/questions/66897935/…

typically this is done as follows: learn.microsoft.com/en-us/powershell/scripting/…