I am looking for a help with Latex. I'm new here so unfortunately I'm not allowed to post pictures yet.
I have a tikzpicture plot with labeled axes (x and y). Now I would like to add an arrow below the x-axis to indicate the direction of the subsequential treatments. In addition I would like to ...
@ChristianHupfer I tried to convince him in front of a good beer at the old Rathaus that \def\ls#1{\lsA#1;;}\def\lsA#1;{\ifx;#1;\else \dosomething{#1}\expandafter\lsA\fi} is good, but the corresponding expl3 version also automatically strips off spaces around items. He looked quite dubious.
@wipet but that answer doesn't really help as knowing that doesn't tell you how to define parsing for an optional [] argument in an expandable way, which is the point of the question, and the point of \DeclareExpandableDocumentCommand — David Carlisle34 secs ago
@DavidCarlisle @egreg: Sometimes I've the feeling wipet is completely stubborn. If I would ask about grammar of Italian he would answer with Latin grammar rules without reference to nowadays Italian -- connected, but not the same (@DavidCarlisle: Replace Italian with English and Old English ;-))
@JosephWright Yes, I see that point -- however I think, he's reinventing the wheel much more than he claims we would do using LaTeX or expl3 -- Isn't LaTeX a good example for bundling often used an necessary commands to get the layout right, amongst other things? That's why we've got the kernel and the document classes etc.
@ChristianHupfer I think he has a stock of all of the code snippets he needs, which he then copy-pastes as appropriate to sources that need them. He doesn't like LaTeX, expl3 or otherwise, as there's stuff the user doesn't see. OPmac is very much meant to be something the user reads completely, not just uses some documented API
@ChristianHupfer Often there is the whole business that LaTeX tends to be written for multiple use cases: if you do everything yourself in plain you can make the code much shorter (clearer?) for each separate use case.
@JosephWright I think, although not really familiar with all details of plain TeX, that it might be clearer for each new task, but that's starting over and over again, in my point of view. I don't write a GUI with assembler (although possible of course) I use programming libraries. Well, I appreciate wipet's knowledge of course ...
@ChristianHupfer Well part of it is to do with TeX being a macro-expansion language. That means that at the \tracingall/error message level we can't do what a high-level compiled language does and entirely hide the assembler/machine code
@JosephWright I believe we talk of different things. I used assembler as a term for older stuff (not bad, of course) but more complex things should be done with a higher level language, with designed libraries. Of course the analogy breaks since TeX is a macro-expansion language, not something which is compiled into machine language.
@egreg I’m sorry I missed that conversation. At that time I was in the hotel café, thinking the other people there were just having drinks, but instead I got stuck in a LaTeX team meeting (again).
@ChristianHupfer That’s a good comparison :-) I once witnessed a discussion about whatever news items from current politics (can’t remember what exactly), that took a turn for the absurd when one of the participants explained that when talking about systems of government, he referred to Aristotle.
@ChristianHupfer That’s the kind of discussion you could have at my old school. Unfortunately some alumni do end up in politics. But one alumnus ended up on the LaTeX team, so it’s not all bad ;-)
@ChristianHupfer In principle I agree with you, and a clear separation of the different layers is a very nice ultimate goal, but it’s not always possible, and is particularly hard to achieve in TeX where the engine’s error messages have a way of creeping back up all the way to the highest level. That’s a good example of Joel Spolky’s law of leaky abstractions (joelonsoftware.com/articles/LeakyAbstractions.html) – you should read it if you don’t know it, it has very good insights.
@egreg Yes, I know, I noticed your message to the TUG 2015 chatroom afterwards.
@JosephWright I have never looked in details, but LyX seems to do interesting things, where they certainly want to shield the user from the intricacies of TeX. That’s clearly not the default behaviour we would like for TeX, but they seem to be doing interesting things such as presenting all error messages in a uniform format, for example.
@ArthurReutenauer yes although uniform format is good but sometimes (I gather from questions here) at the expense of missing out the bit of the error message with the information about what went wrong (tex's multi-line messages with semantically important line breaks are hard to summarise:-) Of course lyx isn't alone with that problem many of the tex text based editors seem to have similar issues with presenting error messages.
@DavidCarlisle Of course it’s not always possible, and in fact that’s the reason I learnt about this behaviour of LyX in the first place: one of the developers asked me to use \MessageBreak in Polyglossia’s error messages – instead of ^^J that François had been using – so that they could extract the first line of the error message and display it to the user.
@DavidCarlisle I suppose if you use ^^J for linebreaks it comes out as a single-line blurb in LyX.
@ArthurReutenauer no was thinking more of automatic errors like undefined command error where the actual command that is undefined is shown by a line break but many systems just seem to show undefined command \begin{document} or some such and miss out the intervening lines
@daleif Yes, I'm pretty sure it would. There was some political moviment going on here, so things were somehow arranged to put Brazil in the spotlight.
@daleif @PauloCereda When was the decision to have Brazil host the World Cup taken? The Olympics have a pretty strict schedule where the final decision is made 7 years before (that was 2009, I remember Chicago was a candidate because I was there ... for TUG’09), but FIFA being the way it is, I can very well imagine its decision could have been influenced by the IOC’s.
@daleif Best way to phrase it is probably: I have an existing, complete TL2014 installation which is somehow polluted (some stuff behaves in a non-reproducible way on my other systems). I just want another full installation that works as intended (a fresh one will do), without breaking any of my documents which compiled fine through TL14.
@1010011010 if you used tl2014 for a year you probably had one year's worth of package updates from tlmgr, but installing the dvd image puts you back to the start.
@JosephWright I don't think anything (to me) significant changed between the two. I'll go with the DVD version. I almost downloaded the big 1.6 GB file, but now it's asking for a username and pass at tug.org/historic/systems/texlive. Did I do something wrong or am I just locked from downloading anything when I already have a file in progress
Snap! I think I should've downloaded the iso... Oops
@cfr Are you complaining about me again on Meta.SO ? If yes, please be a little respectful and point to a place where I have been bullying you or as @JosephWright mentions flag it so we can handle it. You apparently don't know what bullying means because otherwise you wouldn't use it so liberally.
@ArthurReutenauer It turns out it is quite useful if you want to typeset a few bars of a song with just the chords (some rudimentary leadsheet if you will)
@yo' I am trying to limit my existence and try to learn more Python, turns out that even though everybody hates matlab and mathematica but still keep mimicking them everywhere specifically matplotlib stuff.
@PauloCereda I actually don't hate hate but it really annoys me. I was de Niro in Raging Bull level hateful during my PhD but now it's all gone. It just annoys me like a picnic fly :D
The Creature: What kind of people is it in which I am comprised? Good people? Bad people?
Victor Frankenstein: Materials. Nothing more.
The Creature: You're wrong.
[Picks up recorder]
The Creature: Did you know I knew how to play this? From which part of me did this knowledge reside? From this mind? From these hands? From this heart? And reading and speaking. Not so much things learned as things remembered.
Victor Frankenstein: Slight trace waves in the brain perhaps.
The Creature: Did you ever consider the consequences of your actions? You made me, and you left me to die. Who am I?
Package pgfkeys Error: I do not know the key '/tikz/picks up recorder' and I am going to ignore it. Perhaps you misspelled it.
[LaTeX] Line 1: See the pgfkeys package documentation for explanation.
@percusse you are not thinking like an engineer, sir. :) The first reaction would be what's the catch with primary colours beamed in the fish's vision field. :)
From the TeX Live list: Gregorio 4.0 reached beta stage, and I would like the final version to be the one integrated in TeXLive 2016 if possible. Now @egreg will solve your TeX problems as part of the new texdoc system.
@PauloCereda Next piece on the radio: “Ombra mai fu”, from Händel's Xerxes. :) Our old organist used to play it during communion. He was blind and there's a very interesting episode about him: when Padova was bombed during WW2, he could guide people who weren't able to recognize places any more.
@DavidCarlisle yeah I know :D But since \mathcal is part of symsymbols (or what), re-declaring it means taking one extra slot. But I managed to solve it somehow
@yo' yes but with texlive 2015 that isn't an issue for math alphabets, for symbol fonts there is not much you can do: 16 is the limit, but you can declare 256 slots with \DeclareMathAlphabet
@PauloCereda the point is that you easily change the colour, velocity etc. when you can preset it to various manuals. You usually leave only 4'+2' stops at II and 8' d
@PauloCereda @yo' There was a project to connect the organ with a new playing device with more manuals and electric transmission (currently it's mechanical), but it cost too much.
@yo' the distinction is that you don't use \mathchardef with math alphabets just \mathcal{A} but if you want to use \mathchardef to define a command like \alpha then the slot the font-family and the math class are all bit packed into a single integer and there are only 4 bits to specify the math fam so you can only reference 16 that way.
@DavidCarlisle @egreg: Sometimes I've the feeling wipet is completely stubborn. If I would ask about grammar of Italian he would answer with Latin grammar rules without reference to nowadays Italian -- connected, but not the same (@DavidCarlisle: Replace Italian with English and Old English ;-))
@ArthurReutenauer Don't ask. I was searching for a video for fixing an HDMI cable. As usual, in 10 minutes I was watching weird stuff. Apparently fish also have some reinforced learning registers
@ArthurReutenauer You would expect the opposite if it was the school behavior though. Here it is supplemented with reward not the survival instinct. I have some friends working on these things. Animals are weirdos. :P
@AlanMunn Friday afternoon trivia: The creator of Gregorio (the software), Élie Roux, got an early interest in LuaTeX because he realised it could solve some problems he was having, and developed some of the first serious LuaLaTeX packages because of that (luatexbase, luaotfload). So the TeX world also owes that Gregorio a lot!
@yo' think that's OK. It sounds slightly strained as in conversational use you wouldn't call 1... m an Alphabet, but here you would and given that I think it takes a "the" but @AlanMunn is in the room so I'm a bit scared to guess English grammar
@egreg that's way more difficult than this. $\beta$ is always the base, without any restriction. However, some definitions make sense (or better, are valid) only if $\beta$ is Pisot.
@AlanMunn it was assumed that no one was using NFSS1 (ie pre-latex2e test versions) of font commands so the nfss1 compat layer was dropped. so the test \@ifundefined{new@fontshape} now goes the other way
@yo' Some use Im for image representation (as in kernel and image of an operator) You don't need to make Rean operator but again it's a matter of taste.
@DavidCarlisle It's a problem with stability, really: with a system that changes every few years, no-one would keep a compat. layer for something from +20 years ago and have it still being used
@percusse I see your point, but that's ugly, IMHO. However, you can't take me seriously, there are people around me who use very strange notation, for instance, $x\alpha$ instead of $\alpha(x)$, which is fine to me as long as $\alpha$ is an action. But some people take it further and use $x\sin$ when they mean $\sin x$
And amongst dynamical systems people, $T x$ is used for $T(x)$ and $T^4 x$ for $T(T(T(T(x))))$ :D (the same for mathematical physics people)
@yo' Sure. But frakturs look really like scribbled things like \Xi,\varsigma,\varrho . Unreadable and unnecessarily funky for a math variable (was that irony?)
@AlanMunn \@ifundefined{new@fontshape}{\def\reset@font{}\let\mathrm\rmfamily\let\mathit\mit}{} is pretty bad really, apart from breaking \mathrm and \mathit it disables \reset@font so probably breaks the fonts used in headings and theorems and anywhere else where a fixed font is required rather than picking up the current font. It is trying to make a 1990's test between original latex2.09 and latex2.09+NFSS1 ... is the package still maintained?
@DavidCarlisle No, I'm not, but I'm in close contact with Alexis who still maintains it. For years we've been talking about writing a replacement together, but we've both been busy. And since it's such a widely used package (and generally a good one), I keep a strong interest in making sure it still works.
@DavidCarlisle The package has been in the hands of quite a few people over its very long life, and that's an easy way for bad code to be left in. (If it ain't broke, don't fix it.)
@DavidCarlisle As a temporary fix until the package is changed, for existing documents that give the error, will it harm to just add \def\new@fontshape? (rather than tell people to edit the package code itself.)
@egreg but only because you refer to it in singular (meaning the whole group). I dunno if you can say "go the Blues!", but you certainly can't say "go Blues"
@egreg @yo @DavidCarlisle So for example, most hockey teams have plural names (with 'the' (The Boston Bruins, The Detroit Red Wings, The St. Louis Blues, The Toronto Maple Leafs) and in each case you cheer "Go Bruins, Go Wings, Go Blues, Go Leafs".
@DavidCarlisle Right, I'm not saying that the nickname doesn't have 'the', it definitely does (in all the hockey teams I mentioned too) But when you cheer, you can't use the article.
@yo With the indefinite number you really are implying that there are some people on ELU that don't think they know everything about English grammar. Given what we know about the site this is a preposterous implication. :)
@yo' you can't win an argument about English grammar with a linguist as they can make it up as they go along and assert that by definition they are right.
Hello everyone! May I ask you to give a look to my question? http://tex.stackexchange.com/questions/256663/chemstyle-redefining-schemeref-to-handle-autodeclaration-of-compounds If there is any expert of LaTeX who can give any help I would be grateful! Thank you in advance!
@JosephWright: hi Joseph! About the above question you said that the declaration of the label inside a floating environment won't work. Can you explain me why? For the same reason a \label inside a figure environment should be wrong... Where is my mistake?
@ArthurReutenauer I should do so yes -- school's out for summer, so I've plenty of time ... In this time I will finish all of my packages, tidy up @PauloCereda's arara, finish LaTeX3 ultimately, save the world and convince wipet of LaTeX2e ;-)
@egreg @WillRobertson defeats your cunning trick and raises a normal error anyway so \suppressfontnotfounderror=1 doesn't do much useful
(/usr/local/texlive/2015/texmf-dist/tex/latex/fontspec/fontspec.cfg)))kpathsea:make_tex: Invalid fontname `Adobe Garamond Pro', contains ' '
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
! fontspec error: "font-not-found"
!
! The font "Adobe Garamond Pro" cannot be found.
!
! See the fontspec documentation for further information.
!
! For immediate help type H <return>.
!...............................................
l.5 \setmainfont{Adobe Garamond Pro}
? h
|'''''''''''''''''''''''''''''''''''''''''''''''
see you get past the low level error but fontspec raises a package error anyway.
I just found a major problem with lualatex in TL 2015. It gives error "too many open files" when I compile document with many includegraphics in it. Same document is compiled with no problem with pdflatex !
I can post it on main board, but can't make a MWE, but can put a link and instructions how to reproduce it, will this be ok?
