I have a paper that uses \label for naming theorems, propositions and etc.
We say that a theorem, proposition and etc X depends on the theorem, proposition and etc Y if Y is mentioned in the closest proof environment that goes right after X.
I wonder if there exists a tool that takes my .tex s...
I have quite a lot of labels and references (around 250 labels, 600 references to those) in my document. As I need to re-arrange parts of the document, I'd like to know which labels are referenced from which parts (and, transitively, which are referenced by the referenced label etc.). In other wo...
@ChristianHupfer yes, it was a good reason to relearn how my rdfref (github.com/michal-h21/rdfref) package works, it is quite powerful for such problems
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@Johannes_B: I started in June 2013 here on TeX.SX and I was online for some weeks until my move, after that, I returned in January, so I noted no difference :D
@Johannes_B.... come on... give it a try... forgive and forget... ;-)
I am off, driving 50km to my parental home and renovating it (somehow...) `\begin{renovate}.... error.... error... no \end{renovate} for next 10^10 lines ;-)
I'm interested in writing packages for TeX/LaTeX/XeLaTeX. I googled around, but all I found was guides or tutorials about how to prepare documents using LaTeX. I want to know how LaTeX works and how to change it or add new things to it.
Which book/guide/tutorial is the most useful source to lea...
@JosephWright Comparing book.cls and scrbook.cls (as i did yesterday) i totally agree with you. Having a look at the standard classes is easier for a novice.
@poplar You'd be much better asking about what you want to achieve than the code that the kernel uses: you can get a long way customising stuff using existing packages without needing to understand everything
@poplar The standard classes (article, report, etc.) are documented in a file called classes.dtx, which you can find on your system using kpsewhich classes.dtx at the Command Line/Terminal
@poplar The code comments are meant for people who have some idea of what is going on: they assume a knowledge of The TeXbook and how TeX works at a low level
@poplar Like I said, there are a lot of good packages where a developer has worked on one area and understood it: keeping a track of all of LaTeX in one go is pretty tricky (I'm on the LaTeX team and I'd use a package to alter section formatting)
@poplar I think you are using MiKTeX: it doesn't install all of the source files 'unpacked' so you might not have easy access to classes.dtx. Luckily, you can get it on CTAN: mirrors.ctan.org/macros/latex/base/classes.dtx
give it a new define, \def\@pardis{9em}% you could set the whatever value you want, then it works
new definition
By the way,Wright, could you do me the favor of telling me the meaning or the function of the last five rows \begingroup \parindent \z@ \rightskip \@pnumwidth \parfillskip -\@pnumwidth {\leavevmode \large \bfseries #1 \leaders\hbox{$\m@th\mkern 1.5mu\cdot\mkern 1.5mu$} \hfil \hb@xt@\@pnumwidth{\hss #2}}\par \nobreak \global\@nobreaktrue \everypar{\global\@nobreakfalse\everypar{}}% \endgroup \fi}
@poplar LaTeX has some commands that should stay 'glued together', most obviously \label (there are others)
@poplar The flag` \if@nobreak` is set true by \@nobreaktrue, and is used to keep any of these 'things' attached to the line we are currently working on. That's always set globally.
@poplar The \everypar hook is used as a reset: it turns off the flag after some material has begun to be typeset (it is inserted at the start of every paragraph)
@poplar Sequence is : set flag true, set up \everypar to reset it 'later'. After the \l@part command is finished, the next command or text that starts a paragraph will insert \everypar and turn off the no-break flag
@poplar \everypar is a TeX primitive (build-in command)
@poplar A 'good' question for the site might be focussed just on this: 'What is LaTeX's \if@nobreak mechanism for and how does it work?' or similar
your meaning is, we set flag \@nobreak true for the sake of prohibiting page splitting. they after the \lpart, we should let the page could break, therefore we reset \@nobreak false. Am I right？
your meaning is, we set flag \@nobreak true for the sake of prohibiting page splitting. After the \lpart, we let the page could break recover, therefore we reset \@nobreak false. Am I right？
the aim of these statements are like this: the \@nobreak true in only confined to \l@part. Once it runs out of \l@part, then, \@nobreak should be reset to false.???
@poplar As @Johannes_B says, this is a broader question, but basically the idea is that there are some following things where you still want to prevent a break
Taking the following example for the sake of explanation；
\begingroup
\parindent \z@ \rightskip \@pnumwidth
\parfillskip -\@pnumwidth
{\leavevmode
\large \bfseries #1
\leaders\hbox{$\m@th\mkern 1.5mu\cdot\mkern 1.5mu$}
\hfil \hb@xt@\@pnumwidth{\hss #2}}\par
\nobreak
\global\@nobr...
\nobreak %does it means no breaking here? \global\@nobreaktrue %set the flag \@nobreak true? since, there are somethings next stilled needed to be attached to the current line? \everypar{\global\@nobreakfalse\everypar{}}% why set the \@nobreak false after %coming into \everpar \endgroup \fi}
In fact, I am still can catch Wright's explanation.
\nobreak %means no breaking here?
\global\@nobreaktrue %set the flag \@nobreak true? since, there are somethings stilled needed to be attached to the current line?
\everypar{\global\@nobreakfalse\everypar{}}% why set the \@nobreak false after %coming into \everpar
\endgroup
\fi}
The actual experiment shows that: when using the above settings, the next paragraph(usually the first chapter corresponding to the current Part) should not be separated from the part(current) when the page splitting occurs. the following paragraph(all the following Chapters, Sections, subsections...etc.) , however, could be laid out on the new page. That's it, Am I right? Wright? of course the context is in the Toc.
@DavidCarlisle Hi, thank you in person David, :) could you give me a confirmation?
Above statement is based on my experiment I just performed.
@poplar As I commented on your initial question, asking questions like this seems a bizarre (and ineffective) way to learn latex. Why are you asking about this stuff, if you are trying to change a table of contents to get some different layout, why not ask about that ?
@poplar I have no idea why the toc code you have shown fragments of is using the afterheading and nobreak code. the standard definitions do not. The code looks suspiciously meaningless, but without looking at the full class(which I don't intend to do) I can't say for sure.
@DavidCarlisle Thank you David, in fact, I have understood almost all the contents except this question and could do the customizing work. Everyone has its own learning ways. Since you are master now, maybe you it seems ineffective to you.
@DavidCarlisle of course, I could not master it without you help(your explanation give me much confidence). I really appreciate your great help, David :)
@DavidCarlisle DavidCarlisle of course, I could not master it without your help(your explanations give me much confidence). I really appreciate your great help, David :)
@tohecz what I need is the confirmation. the statement is based on the understanding of JosephWright's explanation and my understanding. I am, however, are not sure? That's ll
@poplar well as I say the code doesn't do anything: it sets the nobreak flag to true then sets it to false at the start of the next paragraph. On its own that does nothing, unless there is some other code that is used before the start of the paragraph that checks the value of this flag.
@DavidCarlisle this. Because as we try to convince you, LaTeX is not a clever box that interprets things the way you believe it should interpret them, rather it does so in the way Knuth made it, and it's not an easy stuff.
@poplar \@nobreaktrue is not some primitive that affects the built in page breaker it just a macro that does \let\if@nobreak=\iftrue ie it defines one command name to be the same as \iftrue that is all it does. You haven't shown any code checking if@nobreak so most likely setting it to true or false has no effect at all.
@poplar so some code is checking \if@nobreak and doing something different depending if it's true or not: but without seeing the code it coudl do anything it does not have to be related to page breaking \if@nobreak hello\else goodbye\fi is perfectly good code. You might hope the original programmer used variable names as a hint rather than to obfuscate, but teh system doesn't care either way
@poplar OK I thought your original question said chapter, it's in reports l@part, ok so if@nobreak is tested in various places in latex.ltx eg \markboth
Small expl3 question: f expansion vs x expansion. Could you explain why are different, and then give a useful example showing the advantages of one vs the other?
@JosephWright I meant the usefulness of stoping expansion in the first unexpandable token. @DavidCarlisle I know, but I'm too new to TeX, so that's not really “old engine” for me :)
@JosephWright The actual experiment shows that: when using the above settings, the next paragraph(usually the first chapter corresponding to the current Part) should not be separated from the part(current) when the page splitting occurs. the following paragraph(all the following Chapters, Sections, subsections...etc.) , however, could be laid out on the new page. That's it
@JosephWright Do you ever use rommannumeral for anything else? surely not for making roman numbers:-) Next you'll be telling me that \lowercase is for lowercasing text.
@Manuel consider something line \multicolumn that needs to be expanded (f style) to check that it starts with \omit to have its magic table properties but you don't want to edef expand it and all its arguments (actually that expansion happens automatically in tabular but f expansion allows you to force it by hand, which is useful sometimes
@JosephWright Okey. I guess this is a little over my limit, so I will rethink about it in some time, with some more ideas about how all of this works :)
@Manuel think what happens with a normal macro like \textbf or \section the macro is expanded then tex looks at the first token, if that is a macro, (just) that is expanded, then look at the first token if that is a macro ... then finally the first token is a non expandable token so tex does that (typesets a letter or changes font or whatever) f type expansion is like this except it stops at the first non expandable token and you get the expanded token list.
@DavidCarlisle The idea is there, but since I haven't thought ever about it, I don't make any conclusion from that. If all the content is expandable… then it expands it like x but being itself expandable inside another f expansion, is that right? What I don't see clearly is the case where there are <expandable things><non expandable things><expandable things> inside a macro. In that case f expands the first part and it stops… so f might not be expected to be used in those cases.
Notice that the idea here is to force evaluation of #1 before doing the case test, but that as \int_case:nnTF is expandable we can't use x-type expansion
@JosephWright I'm not sure abot what you wanted there… \int_case:nnTF should be \int_case:fnTF? and then using \tex_romannumeral:Dand\exp_args:Nf… uff… Don't worry, I will revisit this in the future. Thank you for the help.
@Manuel \int_case:nnTF has two n-type arguments as they are not expanded before passing to some base function. In the same way, \int_eval:n has an n-type argument even though it's expanded as part of the 'use'.
does any one know if listings packages allows frame around the listing to fit automatically tight around the listing? i.e. the frame width will automatically adjust the the longest line in the listing? This option is only available with fancybox it seems. I am looking at listing document now and do not see such an option: frame=<none,leftline,topline,bottomline,lines,single,shadowbox> thought to check
I do not want to set the width explicitly myself like here tex.stackexchange.com/questions/83614/… since I do not know what it the right value is each time.
@JosephWright I have looked through your answer, very helpful and detailed. To put it in simple sentenes. the first \nobreak prohibits page splitting before the part and the first chapter(in context or our question); \global\@nobreaktrue works with the command \nobreak to achieve this function, therefore the flage \@nobreak must be needed and be set true. \everypar{\global\@nobreakfalse\everypar{}}% breaks are allowed for the following Chapter/Section/Subsection....etc, yes or no?
Help requested for the handout mode of the beamer class.
I have been using it fairly minimally for a few years. About a year ago the handout mode stopped producing all the pages. The presentation mode works fine.
This is my preamble for the handout:
\documentclass[xcolor=pst,dvips,11pt,hando...
@Werner I use some pretty similar settings myself for my handouts (which I'm doing now in preparation for a new term). For me, in pdfmode, all is fine.
@Werner For my handouts I have
\pgfpageslogicalpageoptions{1}{border code=\pgfstroke}
\pgfpageslogicalpageoptions{2}{border code=\pgfstroke}
\pgfpageslogicalpageoptions{3}{border code=\pgfstroke}
\pgfpageslogicalpageoptions{4}{border code=\pgfstroke}
\pgfpagesuselayout{4 on 1}[a4paper, border shrink = 5 mm, landscape]
@DavidCarlisle This question appears to be off-topic because the problem is too localized: it is too specific to be useful to any future visitors. Sounds good?
EDIT Dec 4 - We're doing it live! Please post bugs or concerns as questions tagged [top-bar]
We have rolled out our 95% completed top bar for feedback.
Note:
We are still adding a few final features, so if you have a request for a feature that is not there you might hold off on that for a da...
Taking the following example for the sake of explanation；
\begingroup
\parindent \z@ \rightskip \@pnumwidth
\parfillskip -\@pnumwidth
{\leavevmode
\large \bfseries #1
\leaders\hbox{$\m@th\mkern 1.5mu\cdot\mkern 1.5mu$}
\hfil \hb@xt@\@pnumwidth{\hss #2}}\par
\nobreak
\global\@nobr...
Help requested for the handout mode of the beamer class.
I have been using it fairly minimally for a few years. About a year ago the handout mode stopped producing all the pages. The presentation mode works fine.
This is my preamble for the handout:
\documentclass[xcolor=pst,dvips,11pt,hando...
