July 2020 - ntg-context - NTG Mailing Lists

What does #+ do?
by Jairo A. del Rio 13 Jul '20

13 Jul '20

Hi list! In evenmore pp. 76-77, concerning LMTX extended macro parsing, the following examples of #0, #+ and #- are given \def\TestA#1#2#3{{(#1)(#2)(#3)}} \def\TestB#1#0#3{(#1)(#2)(#3)} \def\TestC#1#+#3{(#1)(#2)(#3)} \def\TestD#1#-#2{(#1)(#2)} So \TestA1{\red 2}3 \TestB1{\red 2}3 \TestC1{\red 2}3 \TestD1{\red 2}3 give (1)(2)(3) % red from "2" onward (1)()(3) (1)(2)(3) % only "2" is colored (1)(3) What I guess is that #+ pass an argument, grouping braces included (the report says an argument is passed "as-is"). I see it as really useful. But, apart from the example above, are there any other differences between doing, say, \def\foo#1#2#3 and \def\foo#+#+#+{#1#2#3}? Thank you very much. Cordially, Jairo :)

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gnuplot module broken with latest 2020-07-13 16:31
by Adam Reviczky 13 Jul '20

13 Jul '20

Hi, Using the minimal example from the contextgarden for gnuplot ( https://wiki.contextgarden.net/Gnuplot) I am getting the following error message: This is LuaTeX, Version 1.13.0 (TeX Live 2021/dev/Debian) system commands enabled. open source > level 1, order 1, name '/usr/share/texmf/tex/context/base/mkiv/cont-yes.mkiv' system > system > ConTeXt ver: 2020.07.13 16:23 MKIV fmt: 2020.7.13 int: english/english system > system > 'cont-new.mkiv' loaded open source > level 2, order 2, name '/usr/share/texmf/tex/context/base/mkiv/cont-new.mkiv' system > beware: some patches loaded from cont-new.mkiv close source > level 2, order 2, name '/usr/share/texmf/tex/context/base/mkiv/cont-new.mkiv' system > files > jobname 'mwe', input './mwe', result 'mwe' fonts > latin modern fonts are not preloaded languages > language 'en' is active open source > level 2, order 3, name '/tmp/4/mwe.tex' modules > 'gnuplot' is loaded open source > level 3, order 4, name '/usr/share/texmf/tex/context/third/gnuplot/t-gnuplot.mkiv' loading > Gnuplot module open source > level 4, order 5, name '/usr/share/texmf/tex/context/fonts/mkiv/type-imp-texgyre.mkiv' close source > level 4, order 5, name '/usr/share/texmf/tex/context/fonts/mkiv/type-imp-texgyre.mkiv' close source > level 3, order 5, name '/usr/share/texmf/tex/context/third/gnuplot/t-gnuplot.mkiv' lua error > lua error on line 4 in file /tmp/4/mwe.tex: /usr/share/texmf/tex/context/base/mkiv/buff-ini.lua:439: attempt to call a nil value (upvalue 'gettoken') stack traceback: /usr/share/texmf/tex/context/base/mkiv/buff-ini.lua:439: in upvalue 'pickup' /usr/share/texmf/tex/context/base/mkiv/buff-ini.lua:635: in function </usr/share/texmf/tex/context/base/mkiv/buff-ini.lua:626> (...tail calls...) 1 \usemodule[gnuplot] 2 3 % write a script for gnuplot 4 >> \startGNUPLOTscript[sin] 5 plot sin(x) 6 \stopGNUPLOTscript 7 8 % include the resulting graphic into the document 9 \useGNUPLOTgraphic[sin] 10 mtx-context | fatal error: return code: 256 Does the gnuplot module need adjustments? Version 2020-07-09 14:50 is fine. Regards, Adam

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Chapter numbering that does not follow a regular pattern
by jbf 13 Jul '20

13 Jul '20

Hi there, I have a situation where numbered chapters are occasionally interspersed with unnumbered chapters, so, for example, it might be: 1 First chapter title with number second chapter title unnumbered 2 Second chapter title with number 3 Third chapter title with number ----------- Now, I can achieve what I want by putting something like the following for a 'normal' chapter (by which I mean one that needs to be numbered, but would otherwise be out of sequence): \chapter[title={\sc My chapter title that needs a different number},ownnumber=2] And in the case of the interspersed 'other' chapter (that is, the one that follows Chapter 1 numbered, still needs a title, but no number, and therefore breaks the normal number increment), I define 'mychapter' in the initial setup, then: \mychapter[title={\sc MY UNNUMBERED CHAPTER TITLE},number=no] ----------- But I was wondering if there was a way that I could achieve the result I want in the initial setup for the two different kinds of chapters. If it were a regular pattern, e.g. 1 chapter, unnumbered chapter, 2 chapter, unnumbered chapter, that might be easier to do, but in the situation I am dealing with, there is not this regularity. You may well tell me that since I can achieve what I want as described above, that should suffice. I will be happy to have that confirmed. On the other hand, someone may have a more elegant suggestion in the initial setup that enables me to call in the specific kind of chapter I need at the time in a simpler way. Julian

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Iterate over color scheme in ConTeXt/Lua
by Jairo A. del Rio 13 Jul '20

13 Jul '20

Hi, list. I've got a question about color schemes in ConTeXt What if want to access the entire list of, say, xwi: for k,v in pairs(xwi_list) do --Supposing xwi_list is contains xwi colors (whatever action I want) end So far I'm manually setting colors from colo-imp-xwi.mkiv, but I suspect there's a less manual method. Thank you in advance. Regards, Jairo :)

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About alternative=middle in section heads
by Jairo A. del Rio 12 Jul '20

12 Jul '20

I've realized ConTeXt now puts the section label and section number above the section title whe alternative=middle is set. How to disable this behavior so one can have a section label and number next to a centered section title? Thank you in advance. Sincerely, Jairo :)

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Broken PDF with latest MkIV
by Henning Hraban Ramm 12 Jul '20

12 Jul '20

Hi, I just installed the latest ConTeXt MkIV (LuaTeX 2.06 20200706 + ConTeXt MkIV 2020.07.09 14:51) to check if the CG journal will look the same as with my "old” installation (LuaTeX 1.11 7215 + ConTeXt MkIV 2020.01.30 14:13). All looks well in Preview.app and PDF Studio 2019, but Adobe (Reader DC and Acrobat Pro 9) can’t open the new PDF. I’ll try to cook up a MWE. Does anyone else experience problems with Adobe apps? Hraban

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pdf tagging for accesbility
by David Eric Cox 12 Jul '20

12 Jul '20

Hello. Is there any way to pdf-tag table headers to assist screen readers and the like? I can get tagging in general and thought that natural tables would work because of \bTABLEhead ... \eTABLEhead would do the job, but it doesn't. I'd appreciate any feedback. David Sent with [ProtonMail](https://protonmail.com) Secure Email.

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Symbol ' of the derived function + pagella + lmtx
by Fabrice Couvreur 12 Jul '20

12 Jul '20

Hello, I am now using the lmtx engine and I have found that using the Pagella font the writing of derived functions is not very nice with the symbol '. Thank you. Fabrice \setupbodyfont [pagella,11pt] \starttext \startitemize[n] \startitem \math{f'(x)=x²+4x+4} \stopitem \startitem \math{f''(x)=2x+4} \stopitem \stopitemize \stoptext

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Re: [NTG-context] About the table of contents
by Wolfgang Schuster 11 Jul '20

11 Jul '20

Fabrice Couvreur schrieb am 11.07.2020 um 16:30: > Hi Wolfgang, > Sorry but i was wrong on what i want to get : > > 1 My first chapter > 1.1 My first section > 1.1.1 My first subsection Set the margin values: \setuplist [section] [margin=1em] \setuplist [subsection] [margin=2em] Wolfgang

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About the table of contents
by Fabrice Couvreur 11 Jul '20

11 Jul '20

Hello, I would like to reduce the space between the numbering and the title of the chapters, sections and subsections. I would also like to have this: 1 My first chapter 1.1 My first section 1.1.1 My first subsection \setuplist [chapter] [style=bold,width=10mm] \starttext \placelist [chapter,section,subsection] [criterium=all, interaction=all, alternative=c] \startchapter [title=My first chapter] \dorecurse{2}{\input knuth} \startsection [title=My first section] \dorecurse{2}{\input knuth} \startsubsection [title=My first subsection] \dorecurse{2}{\input knuth} \stopsubsection \stopsection \stopchapter \stoptext

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