ntg-context August 2020

ntg-context@ntg.nl

36 participants
98 discussions

new upload
by Hans Hagen 09 Aug '20

09 Aug '20

Hi, I uploaded a new lmtx ... not much done due to the heat (entered reading mode instead) but ... apart from some work in progress ... we now have some basic bitwise operations (maybe we need some more). So far we have: \startlines \meaning\bitwiseset \meaning\bitwisenot \meaning\bitwisenil \meaning\bitwiseand \meaning\bitwiseor \meaning\bitwisexor \meaning\ifbitwiseand \stoplines used as: \scratchcounter = \bitwiseand "01 "02 \uchexnumbers{\scratchcounter} \quad \scratchcounter = \bitwiseand "01 with "02 \uchexnumbers{\scratchcounter} \quad \scratchcounter = \bitwiseand "03 "02 \uchexnumbers{\scratchcounter} \par \scratchcounter = \bitwiseor "01 "02 \uchexnumbers{\scratchcounter} \quad \scratchcounter = \bitwiseor "01 with "02 \uchexnumbers{\scratchcounter} \quad \scratchcounter = \bitwiseor "03 "02 \uchexnumbers{\scratchcounter} \par \scratchcounter = \bitwisexor "01 "02 \uchexnumbers{\scratchcounter} \quad \scratchcounter = \bitwisexor "01 with "02 \uchexnumbers{\scratchcounter} \quad \scratchcounter = \bitwisexor "03 "02 \uchexnumbers{\scratchcounter} \par \scratchcounter = \bitwisenil \bitwisenil "0F "02 "01 \uchexnumbers{\scratchcounter} \par \scratchcounter = \bitwisenil \bitwisenil "0F with "02 with "01 \uchexnumbers{\scratchcounter} \par \scratchcounterone\zerocount \scratchcounterone \bitwiseset "FFFFFFF \ifbitwiseand \scratchcounterone "8000000 YES \else NOP \fi \ifbitwiseand \scratchcounterone "F000000 YES \else NOP \fi \ifbitwiseand \scratchcounterone "1000000 YES \else NOP \fi \scratchcounterone \bitwisenot \scratchcounterone \ifbitwiseand \scratchcounterone "8000000 YES \else NOP \fi \ifbitwiseand \scratchcounterone "F000000 YES \else NOP \fi \ifbitwiseand \scratchcounterone "1000000 YES \else NOP \fi \scratchcounter \bitwiseand "01 "02 \scratchcounter \numexpr "01+"02\relax \ifcase \bitwiseand \scratchcounterone \plusone \else \fi \ifbitwiseand \scratchcounterone \plusone \else \fi \ifnum \scratchcounterone=\plusone \else \fi A while ago I played with bitwise operator sin \numexpr but in the end removed that because it's messy with the symbols to be used, but I will look at that agaon if needed. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

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How to properly pass TeX/Lua data to MetaPost/MetaFun?
by Jairo A. del Rio 09 Aug '20

09 Aug '20

Hi, list! I'm doing the following to scale squares and other stuff in MetaPost/MetaFun. Although the following kinda works (maybe I'm just lucky with this), I want to know how to do a better piece from it. I'm concerned with passing data from Lua and TeX to Metapost and better ways to do it in ConTeXt. Thank you in advance. \starttext My text \startMPinitializations numeric myunit; myunit := \the\dimexpr1em\relax; \stopMPinitializations \startluacode userdata = userdata or {} userdata.dummydata = { {1, 2}, {3, 4} } context.startMPcode() for j=1,#userdata.dummydata do for i=1,#userdata.dummydata[1] do context("draw unitsquare scaled myunit shifted ((%d,%d)*myunit);", userdata.dummydata[i][j], userdata.dummydata[i][j]) end end context.stopMPcode() \stopluacode \stoptext Jairo :)

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Using \applytosplitstringwordspaced and allies
by Jairo A. del Rio 09 Aug '20

09 Aug '20

Hi, list! :D I've found \applytosplitstringwordspaced and many other commands reading on the mailing list and TeX StackExchange. An issue with those is: the following does not work: \applytosplitstringwordspaced\somemacro{\input knuth} It only works with explicit TeX "words". How to circumvent this inconvenience? Thanks in advance. Regards, Jairo :)

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floats side by side
by Henning Hraban Ramm 08 Aug '20

08 Aug '20

Hello again, I need to place several figures side by side (e.g. pictures of persons). I know I can use combinations, but I need the figures with captions included in the usual numbering of figures and not one number & caption for the combination. How can I achieve this? Best, Hraban

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context --luatex does not redirect to LuaTeX
by Jairo A. del Rio 08 Aug '20

08 Aug '20

Hi again! When context --luatex is used with current version: 2020.08.07 23:37 LuaMetaTeX is still used. --engine=luatex has no effect, either. Is that a bug? Thanks Cordially, Jairo :)

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Re: [NTG-context] Bug with \wordright in LMTX version 2020-08-03 14:25
by Otared Kavian 08 Aug '20

08 Aug '20

Hi Hans, Thanks for the hint which consists in adding an \ifmmode to the definition of \qed. However, as you suggest, one needs some other mechanism in math mode, since with your new definition of \qed the alignment of the formula changes when one adds this close symbol: %%%% begin-example-qed.tex \definesymbol[Fin][\mathematics{\square}] \def\qed{\ifmmode\quad\symbol[Fin]\else\strut\wordright{\symbol[Fin]}\fi} \starttext \startformula a^2 + b^2 = c^2. \stopformula \startformula a^2 + b^2 = c^2. \qed \stopformula One sees that\type{\qed} in the formula changes the alignment of the formula. \qed \stoptext %%%% end-example-qed.tex Thanks a lot for everything: Otared > On 4 Aug 2020, at 13:24, Hans Hagen <j.hagen(a)xs4all.nl> wrote: > > On 8/4/2020 11:17 AM, Otared Kavian wrote: >> Thanks Hans for your explanations. >> The problem I encountered is that, the command \qed is used dozens of time in my text without any issue because it was preceded by something on th eline, but the only place where it was alone after a formula resulted in the error and it was not easy for me to isolate the issue… >> By the way, in mkii it was possible to add \qed on the last line of a math formula, but that does not work anymore: >> \definesymbol[Fin][\mathematics{\square}] >> \def\qed{\strut\wordright{\symbol[Fin]}} >> \starttext >> \startformula >> a^2 + b^2 = c^2. \qed >> \stopformula >> The above formula does not show the close symbol.\qed >> \stoptext >> Is there a way to have something like \qed work in math formulas? > because that's now hwpo wordright works ... > > \def\qed{\ifmmode\quad\symbol[Fin]\else\strut\wordright{\symbol[Fin]}\fi} > > but we probably need something different, something that hooks into display math > > Hans > > > ----------------------------------------------------------------- > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > -----------------------------------------------------------------

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About the numbering of theorems
by Fabrice Couvreur 08 Aug '20

08 Aug '20

Hello, I have a little problem with the numbering of theorems when there is no subsection. I would like to know : Theorem 1.1 Theorem 1.2 Theorem 2.3 Theorem 2.4 Thank you Fabrice %%%% begin example \setuplabeltext[chapter=Chapitre~] \unexpanded\def\Title#1#2{\framed[frame=off,width=fit,align=flushleft]{#1\blank#2}} \startbuffer[mybuffer] \starttheorem \input ward \stoptheorem \stopbuffer \setuphead [chapter] [style=\bfd, align={flushleft,broad}, command=\Title] \setuphead [section] [style=\bfc, distance=\zeropoint, sectionsegments=section, conversion={R}, align={flushleft,broad}, commandbefore={\space\endash\space}] \setuphead [subsection] [sectionsegments=subsection, conversion={n}, style=\bfb, align={flushleft,broad}] \setupenumerations [before={\blank}, after={\blank}, alternative=serried, title=yes, prefix=yes, prefixsegments=chapter, titlestyle=bold, width=broad] \defineenumeration [theorem] [text=Théorème, number=yes, style=italic] \starttext \startchapter [title={First chapter}] \startsection [title={First section}] \startsubsection [title={First subsection}] \dorecurse{2}{\getbuffer[mybuffer]} \stopsubsection \stopsection \stopchapter \startchapter [title={Second chapter}] \startsection [title={Second section}] \dorecurse{2}{\getbuffer[mybuffer]} \stopsection \stoptheorem \stopchapter \stoptext %%%% end example

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teaser
by Hans Hagen 07 Aug '20

07 Aug '20

Hi, I uploaded a new lmtx version ... it has a new mechanism for manipulating boxes: http://www.pragma-ade.com/general/magazines/mag-1105-mkiv.pdf (also in distribution) Of course experimental but I bet that some can think of usage. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

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Registration for 14th ConTeXt Meeting, September 6–12, 2020
by Jano Kula 07 Aug '20

07 Aug '20

Dear all! The 14th ConTeXt Meeting <https://meeting.contextgarden.net/2020/> is in preparation as originally planned. All pre-registered participants are still planning to attend the meeting. The situation is changing every day (mainly travel restrictions), so we have decided to hold the meeting in case the Czech Republic doesn't have red light in most of the countries in September and the number of participants doesn't drop below the critical number. We will not charge a cancellation fee to attendees, if their individual situation changes. In case the meeting is cancelled as a whole in the end, we will ask everybody registered (except students) to donate 20 € minimum to the ConTeXt Group <https://group.contextgarden.net> as sort of collective insurance. The collected money will be used as the cancellation payment to the hosting property. Abstracts <https://meeting.contextgarden.net/2020/abstracts.shtml> have been updated and registration <https://meeting.contextgarden.net/2020/register.shtml> is open until we reach full capacity. See you in Sibřina! Jano

1 0

please explain
by Hans van der Meer 07 Aug '20

07 Aug '20

This MWE is an example of strange font behaviour according to the log and I do not understand what is causing it. ConTeXt complains "check count_components with mkiv" when the word 'suffi' is present (see log message below). Now comes the most strange: remove 'suffi' or shorten to 'suff' and the message goes away. I have put the full set of files inside the zip. dr. Hans van der Meer \setupbodyfont[termes] \starttext %================================================================= ConTeXt versie \contextversion \crlf %================================================================= this here: suffi (but suff is ok!) %================================================================= \starttyping fonts/mkiv/type-imp-texgyre.mkiv' close source > level 3, order 4, name '/Users/hansm/TeX/context/tex/texmf-context/tex/context/fonts/mkiv/type-imp-texgyre.mkiv' fonts > ! fonts > ! check count_components with mkiv ! fonts > ! \stoptyping \stoptext

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ntg-context August 2020