TeX, LaTeX and Friends

12:01 AM

@DavidCarlisle I got a problem, tex4ht does not like the \catcode`\^^M=12 for some reason. It will works well in lualatex. So I am looking at this now. Here is a more complete MWE

\documentclass[11pt]{scrartcl}
\IfFileExists{luatex85.sty}
{\usepackage{luatex85}}{}
\usepackage{amsmath}
\usepackage{luacode}
\usepackage{listings}

%----------------------------------------------
\begin{luacode}

  function foo(arg)
  \ifdefined\HCode
     tex.print("\\begin{verbatim}")
  \else
     tex.print("\\begin{lstlisting}[language=Matlab]")
  \fi

   tex.print("")
   tex.print(arg)
   tex.print("")

  \ifdefined\HCode
      tex.print("\\end{verbatim}")
  \else
      tex.print("\\end{lstlisting}")

David Carlisle

@Nasser can't say I'm surprised

Nasser

make4ht --lua foo.tex gives

(/usr/local/texlive/2016/texmf-dist/tex/generic/tex4ht/html4.4ht)
(/usr/local/texlive/2016/texmf-dist/tex/generic/tex4ht/html4-math.4ht))
(./foo2.aux)
! Missing number, treated as zero.
<to be read again>
^
l.33 \catcode`\^^
M=12 %
? x
1019 words of node memory still in use:
7 hlist, 2 vlist, 2 rule, 1 local_par, 1 dir, 10 glue, 1 kern, 1 penalty, 2
glyph, 47 glue_spec, 2 write, 172 special nodes
avail lists: 2:21,4:1,5:4,6:26,7:2,11:3

I need to find a way around this. May be tex4ht does not like catcode :( this will be a big problem

Johannes_B

3:20 AM

Yo soy un pengüino.

Nasser

9:34 AM

@DavidCarlisle thanks for the answer. but I do not know what do with the endoflinechar. The code was this, which worked from above:
\catcode`\^^M=12 %
\endlinechar=`\^^M %

So I changed it to (per your answer)

\catcode13=12
\endlinechar=`\^^M

it works in lualatex, but tex4ht now gives new error. due to conflict with ^^M. What should I change `endlinechar` to please? I tried \endlinechar=\catcode13 but lualatex screamed at me.

David Carlisle

@Nasser as I say it's just 13, so \endlinechar=13 is the same, but it's also the default so you could just drop that line

Nasser

Oh, I see. OK, will try it now

David Carlisle

@Nasser you still need the % though

@Nasser the backtick means "the ascii code of" so `a is the ascii number for a and `\^^M is the ascii for control-m which is 13

Nasser

@DavidCarlisle it works !! and make4ht is happy and superscript is still there. I am sure Michal would not mind if I accept your answer instead. Thanks both for your help and time.

Joseph Wright

Morning all

@DavidCarlisle Put any money on Brexit?

David Carlisle

9:56 AM

@JosephWright it's not funny :(

Joseph Wright

10:11 AM

@DavidCarlisle At this stage, I think the humour you can find is the only positive: it's happening

David Carlisle

@JosephWright it's possible to read bbc's poll-of-polls as "remain ahead", but a more accurate reading is probably "no one has a clue" .. bbc.co.uk/news/uk-politics-eu-referendum-36271589

Joseph Wright

@DavidCarlisle In the esd, certainly

Paulo Cereda

@egreg Italy has so many beautiful places to visit! I will need a lot of days to see some of them!

egreg

@PauloCereda Maybe a year suffices for getting an idea of the main parts. ;-)

Paulo Cereda

@egreg ooh I will need a postdoc offer. :D

David Carlisle

10:22 AM

@PauloCereda you will need a pre doc offer unless you finish your thesis

Paulo Cereda

@DavidCarlisle oh

David Carlisle

@PauloCereda sorry, just needed to return to more cheerful subjects like goading you about procrastination after Joseph's comments above:-)

Paulo Cereda

@DavidCarlisle Joseph is mean. :)

@egreg: ^^

Joseph Wright

@DavidCarlisle :-)

@PauloCereda No, realistic :-(

Paulo Cereda

@JosephWright <3

egreg

10:27 AM

@PauloCereda You should call him to play for Brazil: his penalties are good for your standards.

Paulo Cereda

@egreg LOL

egreg

10:37 AM

@PauloCereda Yes, even slightly better, as he's at least able to hit the goal post.

Szabolcs

11:06 AM

I am trying to parse the error output from LaTeX (again). As you know, it is painful.

Question: If I have ! LaTeX Error:, can I assume that it will be eventually followed by something like l.123 this is where the error is a couple of lines later? (I.e. error is on line 123)

Not all errors are followed by this. My question is if all "LaTeX Errors" are followed by this.

Example:

! LaTeX Error: Can be used only in preamble.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...

l .10 \usepackage
                {graphicx}%
No pages of output.

David Carlisle

@Szabolcs the l.xxx line is the line in the file where the error was detected but it might just be \begin{document} if the error is in the aux file, the intermediate lines show the actual error.

Szabolcs

@DavidCarlisle Will there always be an l.xxx printed though? (Which I could use as the termination marker for the error.)

David Carlisle

@Szabolcs the error message output format is really quite regular, the usual problem people have reading it is they read "simplified" versions offered by editors which miss out cintext and line breaks rendering the messag emeaningless

Szabolcs

For LaTeX errors.

David Carlisle

@Szabolcs yes unless the user has used -file-line-error commandline option in which case the format changes a bit

@Szabolcs that is not a latex thing though, it is the primitive tex \errmessage behaviour so applies to almost all error messages from tex

Szabolcs

12:04 PM

Is backslash-newline the same as backslash-space in LaTeX?

egreg

12:22 PM

@Szabolcs Yes.

\def\^^M{\ } % control <return> = control <space>

egreg

12:55 PM

@Szabolcs Note that input lines are “normalized”, in the sense that trailing spaces and tabs are stripped off, so a line ending with “backslash space” is actually seen as “backslash endlinechar” (with the current endlinechar). Thus a definition for \^^M is necessary.

Paulo Cereda

2:55 PM

Quack! :)

Johannes_B

12 hours ago, by Johannes_B

Yo soy un pengüino.

Paulo Cereda

3:07 PM

@Johannes_B oooooooooooh

Paulo Cereda

3:17 PM

Friends, could you guys recommend me a math-heavy TeX sample document?

David Carlisle

@PauloCereda 1=1\bye

Paulo Cereda

@DavidCarlisle I was expecting a little more. :)

David Carlisle

@PauloCereda 2=2\bye

@PauloCereda the amsmath example document?

Joseph Wright

@PauloCereda $y = mx + c$\bye

barbara beeton

@PauloCereda -- plain tex or latex?

David Carlisle

3:26 PM

@JosephWright I feel a patch level 2 coming on....

Paulo Cereda

@barbarabeeton Any will do. :)

@JosephWright :)

Joseph Wright

@DavidCarlisle Indeed

Paulo Cereda

@DavidCarlisle ooh Apache LaTeX3. I was expecting this.

A patch = Apache... wink wink know what I mean say no more

Joseph Wright

@DavidCarlisle Speaking of which, I'll do a Doodle for the next team meeting

barbara beeton

@PauloCereda -- does require amsmath ... the testmath document that comes with it. included in tex live. you can look at it first with texdoc testmath.

David Carlisle

3:29 PM

@JosephWright could update tools/bm with this as well tex.stackexchange.com/questions/314863/lualatex-and-bm-package/…

Joseph Wright

@DavidCarlisle Week after next?

David Carlisle

@JosephWright 28th looks good for some reason

Joseph Wright

@DavidCarlisle Anniversary of the signing of the Treaty of Versailles?

Paulo Cereda

@barbarabeeton Absolutely fantastic! Thank you, Barbara!

@DavidCarlisle: ^^

@JosephWright 6 days for cake!

David Carlisle

@JosephWright that usn't what showed on my google calendar

@JosephWright patch level 2 even more likely now :(

Joseph Wright

3:35 PM

@DavidCarlisle I have a handy mug that tells me this (from the end of the war)

@DavidCarlisle Yes

barbara beeton

@PauloCereda -- there are a few known errors (of the typesetting, not math variety) in testmath; on the other hand, it's extensive enough that we're using it to test the stix font beta, so i hope it works for you. if you do spot any glitches you think should be fixed, or think that something really necessary is missing, let us know that too. updates to the amsmath documentation are now on the table.

Paulo Cereda

@barbarabeeton I am studying a potential major feature for arara, and I need a math-heavy document. :)

GPhys

upgrading to the new tex live ^^

barbara beeton

@PauloCereda -- well, good luck with it. it's certainly "heavy"; 38 pages with the stix fonts, and i've got two copies on my desk, and have to compare them closely, to make sure that the problems noted in the last go-around have been fixed.

Paulo Cereda

@barbarabeeton <3

David Carlisle

4:44 PM

@JosephWright I'm not sure this is doing the right thing:

  \expandafter\let\expandafter\reserved@a\csname#2\string#1\endcsname
  \expandafter\expandafter\expandafter\ifx
  \expandafter\@car\reserved@a\relax\relax\@nil \@text@composite \else
      \edef\reserved@b##1{%
         \def\expandafter\noexpand
            \csname#2\string#1\endcsname####1{%
            \noexpand\@text@composite
               \expandafter\noexpand\csname#2\string#1\endcsname
               ####1\noexpand\@empty\noexpand\@text@composite
               {##1}}}%
      \expandafter\reserved@b\expandafter{\reserved@a{##1}}%

Joseph Wright

@DavidCarlisle From?

David Carlisle

@JosephWright I left off the first line as I thought you'd recognise it:-)

declareTextCompositeCommand

Joseph Wright

@DavidCarlisle Was my guess

David Carlisle

@JosephWright although perhaps I've confused myself, need to do some more tests

David Carlisle

4:57 PM

@JosephWright ah l3build confused me again, all Ok (build install isn't the same as fmtutil-sys :-)

Johannes_B

5:17 PM

@JosephWright You are a moderator around here, right? :-) tex.stackexchange.com/questions/315533/…

Paulo Cereda

5:27 PM

@AlanMunn: how do you like a template engine built inside arara?

Alan Munn

@PauloCereda How would it work?

Paulo Cereda

@AlanMunn My plan would be like this:

% arara: template: { output: 'foo.tex', context: { name: 'Alan' } }
% arara: pdftex: { files: [ foo.tex ] }
Hello, my name is ${name}.
\bye

Alan Munn

@PauloCereda I see what it does, but I'm not quite sure what it would be used for.

Paulo Cereda

@AlanMunn Neither am I. :)

Alan Munn

@PauloCereda :)

David Carlisle

5:42 PM

@AlanMunn that's clear, it's all part of thesis avoidance

Alan Munn

@DavidCarlisle That and football, a deadly combination.

David Carlisle

@PauloCereda more seriously, I think it's confusing to build a macro engine over the top of a macro engine, that template could be done with \def\name{Alan} and \name rather than introducing ${name} syntax

Paulo Cereda

@DavidCarlisle You are right. :) I was just thinking if someone would need thta. :)

David Carlisle

@PauloCereda but the danger is 1 person says they need it, so you do it and confuse the other arara user.

@JosephWright who's idea was \IncludeInRelease? :(

yo'

% arara: pdftex { files: [ foo.tex ] }
\def\templateName{Alan}
Hello, my name is \templateName\@.
\bye

@PauloCereda ^^

Paulo Cereda

5:54 PM

@yo' <3

Johannes_B

6:25 PM

@DavidCarlisle Questions like that confuse me tex.stackexchange.com/questions/315562/…

David Carlisle

@Johannes_B you shouldn't read any questions with template in the title, it's bad for your health

Johannes_B

@DavidCarlisle I know.

David Carlisle

6:50 PM

@Johannes_B you can amuse yourself by trying this:

\RequirePackage[2014/12/31]{latexrelease}
\documentclass{article}
\usepackage[T1]{fontenc}
\begin{document}
\c{g}
\end{document}

David Carlisle

7:08 PM

@egreg that's your fault ^^^^

Johannes_B

7:21 PM

@DavidCarlisle Sad thing is, that kinda amused me :-)

egreg

@DavidCarlisle Your fault: you didn't document the thing. :P

David Carlisle

@egreg it's a pain to make work with latexrelease as t1enc.def is preloaded in the format and can be re-input multiple times later. You should have suggested it earlier, such as 1993

Johannes_B

@DavidCarlisle @egreg Out of interest, when did you two first met each other?

David Carlisle

@Johannes_B tug2015

Johannes_B

@DavidCarlisle I meant (by the italics) online.

Was it here on TeX.SX or earlier?

David Carlisle

7:36 PM

@Johannes_B here

Johannes_B

@DavidCarlisle ah, ok :-)

@DavidCarlisle Some of the names you know from mailing lists and such. For example, Taco is here (has an account), but i don't know about Hans.

David Carlisle

@Johannes_B yes I know most of the authors of important latex packages from mailing lists or comp.text.tex etc;-)

Johannes_B

Just noticed: duolingo can help me learn swahili and hebrew, but not arabic.

David Carlisle

@Johannes_B اللغة العربية هي سهلة

Johannes_B

@DavidCarlisle ey. if you have gooogle. if not: la (just noticed, ey/ej is Damaskus accent. All others would say: nem)

egreg

7:54 PM

@Johannes_B In Darmstadt, I asked him about the Ashes and he knew nothing about it. :P

Johannes_B

@egreg Ashes?

egreg

@Johannes_B Oh, you're an outsider, then. ;-)

David Carlisle

@Johannes_B cricket

Johannes_B

@DavidCarlisle @egreg Cricket? yes, i am an outsider

David Carlisle

The Ashes

The Ashes is a Test cricket series played between England and Australia. The Ashes are regarded as being held by the team that most recently won the Test series. The term originated in a satirical obituary published in a British newspaper, The Sporting Times, immediately after Australia's 1882 victory at The Oval, their first Test win on English soil. The obituary stated that English cricket had died, and "the body will be cremated and the ashes taken to Australia". The mythical ashes immediately became associated with the 1882–83 series played in Australia, before which the English captain Ivo...

egreg

8:59 PM

@DavidCarlisle You can do better than suggesting \string\\ :P

David Carlisle

@egreg why? it works, I even tested it

@egreg unlike @barbarabeeton's suggestion:-)

egreg

@DavidCarlisle A much better solution is available, of course. ;-)

David Carlisle

@egreg s/better/more complicated and less general/

barbara beeton

9:17 PM