TeX, LaTeX and Friends

@JosephWright Well, no reason to let a file name issue question open, once it's solved, I closed at least one of the mentioned as TL, together with an explaining comment.

kan

@DavidCarlisle I don't follow the question, can you please rephrase? If you mean, how are things ordered, Chapter x is passed to \section*{} and the exercises are environments.

And, the rest are subsections.

Embarrassing question: what is the key binding for copying?

(yanking - C-y right?)

David Carlisle

@kan I meant what markup made "1. Representations and Modules" and "Exercise 1.4" although I saw in your parallel conversation with egreg that the latter is from a custom environment. I asked as I'd have expected most class settings would have put more space

@kan yes that yanks the first item in the kill ring

kan

And for copying, what is the keybinding?

David Carlisle

12:35 AM

@kan M-w

@kan If you look in the edit menu, the keybindings are shown (a modern concession, I usually forget emacs has a menu system at all:-)

kan

@DavidCarlisle I just see: <copy> and <cut>

David Carlisle

@kan so do I (just looked) they changed it again:-( possibly related to the fact that in the options menu you can change it to windows style C-x C-c C-v etc (don't do that it would be sooo confusing:-)

kan

@DavidCarlisle I agree: I have just wrapped my head around a few keybindings.

But, this M-w seems to not help me copy from the emacs buffer to this chat textbox. @David

egreg

@kan Sorry, bedtime for me. I don't know about you, but it should be either very early or very late.

David Carlisle

works fro me M-w in emacs C-v in firefox

@egreg rep cap yet? (you've had 40 minutes)

kan

12:41 AM

@egreg very early. :) But, let me tell you how it goes tommorrow perhaps? (Sorry, got lost in emacs world)

egreg

@kan I'll be back in some eight hours or so. Ciao

kan

\newenvironment{exer}[1]{\def\exernumber{#1}\exeraux}{\endexeraux}

@egreg Sure!! Good night

Now, I am lost where to add egreg's code there: \par\addvspace{\topsep}

Wow!

I fixed it~

kan

1:09 AM

@David Can I ask you a question about counters? :)

David Carlisle

@kan you can ask

kan

I am having problem using both of these together:

\numberwithin{subsection}{section}
\renewcommand*{\thesubsection}{\arabic{subsection}}

In this order, the effect of numberwithin is lost.

     \renewcommand*{\thesubsection}{\arabic{subsection}}
\numberwithin{subsection}{section}

David Carlisle

@kan well not exactly, the counter will reset to 0 on every section still

kan

@DavidCarlisle Should this behaviour change is I use \section*{} ?

David Carlisle

@kan yes unnumbered sections don't count

kan

1:13 AM

@DavidCarlisle I sense trouble.

Can I cheat like this:

\renewcommand*{\thesection}{}

David Carlisle

@kan back up from trying to abuse the markup: what effect do you want to produce

kan

@DavidCarlisle I want to number the subsections within sections and the subsection should be numbered as indicated by: \renewcommand*{\thesubsection}{\arabic{subsection}}.

(And, I am also using \section*{})

David Carlisle

but sections are unnumbered?

kan

Yes. :)

I know you want to strangle me ... :P

David Carlisle

@kan latex tries to make it easy to ensure that section numbers (and references to them) are unique, but if you must, you can do:

\let\oldsection\section\def\section{\setcounter{subsection}{0}\oldsection}

kan

1:19 AM

I totally see what you're doing here!

I am so stupid, you know.

David Carlisle

@kan don't tell me you are using hyperref

kan

@DavidCarlisle why? I don't see any contradictions yet .

David Carlisle

@kan because the above almost certainly breaks hyperref. If you have two subsections both labelled "1" humans can (perhaps) figure out what a reference to subsection 1 means from the context but computers have no common sense and they just moan that there are duplicate identifiers and they can not construct the link.... (it's fixable but not at this time of night)

kan

@DavidCarlisle well, the links there are; but, the numbers are mad -- they begin where the previous sections left off...

David Carlisle

@kan yes but once you add the above the numbers will be the same so you will get duplicate anchors and your links will break

kan

1:25 AM

May be, I'll try to fix this: I'll look into hyperref's manual.

David Carlisle

@kan the hyperref manual won't help as it won't be expecting you to warp latex's numbering system in this way

why don't you number your sections?

kan

@DavidCarlisle OK, I think you're also assuming that I still have \numberwithin{subsection}{section} -- I got rid of it as you're already setting the subsection counter to 0. So, I should only fix what gets passed to hyperref, no?

@DavidCarlisle I don't want '1. Chapter 1` and so on...

David Carlisle

@kan don't tell me you are manually putting a number in the chapter title? (You'll give @egreg nightmares in his sleep:-)

kan

@DavidCarlisle Oh, wait! Everything seems ok.

@DavidCarlisle I am! I am doing this stupidly! I know! I asked you guys this question! I have a tex file full of notes and exercises and I am to write its solutions, how do I synchronise the process so as to not hard code the numbers involved -- chapter, exercise number and so on...

David Carlisle

@kan well insead of going \section*{section 1} go \section{section title} (If you want the section head to have the number in a different position that is a style issue for the class file, it should not change the document markup

kan

1:37 AM

@DavidCarlisle Well, I think it might be possible to do this for me... I understand what you mean, if all I want is to have different section head, code the style and update the numbers via markup... is that what you mean?

codebeard

@DavidCarlisle what commands does \section insert so that page breaks don't happen directly afterwards? Is it just \nopagebreak[...] ? It also seems to have slightly more flexible vertical spacing than just using \\

David Carlisle

@kan well the standard sectioning commands will handle the numbers if you let them... look at chapter titles they have wildly different settings in different classes (or using style packages) \chapter{foo} may say 1. foo like a simple section or may start a new page with an image and CHAAPTER 1 <newline> FOO and half a megabyte of tikz decoration, same markup, different output

@codebeard never use \\ to break lines in text (a rule that may be broken, but not oftem)

codebeard

@DavidCarlisle I often use it to break lines in poetry, is that okay?

David Carlisle

@codebeard It is a whole slew of commands centerd on \@afterheading

@codebeard poets do their own thing:-)

codebeard

@DavidCarlisle can \@afterheading be used manually? (with \makeat...)

David Carlisle

1:46 AM

@codebeard perhaps if you know what you are doing) but it probably does more than you want (it also handles suppression of paragraph indent in first para of a section) what do you want?

@codebeard perhaps you just want \par\nopagebreak\addvspace{some flexible space such as 5pt minus 2pt plus 2pt}

codebeard

2:22 AM

@DavidCarlisle that sounds like what I need -- thanks :)

@DavidCarlisle would I just add a \noindent there if I wanted to suppress the first paragraph indent?

David Carlisle

2:52 AM

@codebeard well you could and it would work but it's evil of course you should (as for sections) just use the same markup either way and have a class level setting that decides whether or not first paras are indented. It's like going {\large\bf my section head\par} instead of \section{my section head} anyway bedtime :-)