October 2019 - ntg-context - NTG Mailing Lists

\numexpr in \rotate error
by context＠vivaldi.net 16 Oct '19

16 Oct '19

Hello, the following code stopped working after today's Ctx update: ---- \setupexternalfigures[location=default] \starttext %\externalfigure[hacker] \getrandomnumber\t{0}{20} \rotate[rotation=\numexpr\t-10\relax]{\externalfigure[dummy]} \stoptext ---- with: " tex error > tex error on line 6 in file X://Users/MMi/Akce/Ctyrkoly.RDS/Texty/VyjProj/~/t.mkiv: ! Missing \endcsname inserted <to be read again> \numexpr \p_rotation_rotation ->\numexpr 18-10\relax \grph_rotate_finish_yes ...t \p_rotation_rotation \endcsname \setbox \nextbo... \grph_rotate_finish_indeed ...h_rotate_finish_yes \fi \egroup \syst_boxes_with_next_box ...rotate_finish_indeed \egroup l.6 ...=\numexpr\t-10\relax]{\externalfigure[dummy]} 1 \setupexternalfigures[location=default] 2 3 \starttext 4 %\externalfigure[hacker] 5 \getrandomnumber\T{0}{20} 6 >> \rotate[rotation=\numexpr\T-10\relax]{\externalfigure[dummy]} 7 \stoptext 8 " (My previous Ctx version was from about 4/2019). What's wrong? Best regards, Lukas

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Where is tex/texmf-context?
by Henri Menke 16 Oct '19

16 Oct '19

Dear list, Today I wanted to use ConTeXt MkIV instead of LMTX but when I ran context, I obtained the error mtxrun | unknown script 'context.lua' or 'mtx-context.lua' so I went to the installation directory /opt/context to check and noticed that tex/textmf-context was missing. I thought that obviously something must have went wrong with the last update, so I deleted the whole tree and ran the first-setup.sh again using sh ./first-setup.sh --context=latest --engine=luatex --modules=all --fonts=all but tex/texmf-context is still missing. Is any of the options I'm using for the install script broken? Cheers, Henri

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\ctxlua and \startluacode ... \stopluacode
by Rudolf Bahr 16 Oct '19

16 Oct '19

Dear List! THis MWE must be faulty, but where is the error? ==================================================== \startluacode userdata = userdata or {} function userdata.file_exists (name) local name = name local f = assert ( io.open ( name, "r" )) if f then f:close () context ( name ) context ( " exists!" ) else context ( name ) context ( " doesn't exist!" ) end end \stopluacode \starttext \def\lookupfile#1% {\ctxlua{userdata.file_exists([==[#1]==])}} \lookupfile{"$HOME/context-tests/AAA.lua"} % "AAA.lua" intentionally does exist \lookupfile{"$HOME/context-tests/BBB.lua"} % "BBB.lua" intentionally doesn't exist \stoptext ==================================================== It makes no difference in commenting out the first or the second "\lookupfile" command. The error message eventually is always nearly the same: token call, execute: [ctxlua]:8: "$HOME/context-tests/AAA.lua": No such file or directory token call, execute: [ctxlua]:8: "$HOME/context-tests/BBB.lua": No such file or directory I'm using: LuaMetaTeX, Version 2.00.0 ConTeXt ver: 2019.10.10 18:15 MKIV beta fmt: 2019.10.12 int: english/english Please, any ideas? Regards, Rudolf

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how to do adaptation
by Susanne G. Loeber 14 Oct '19

14 Oct '19

Hi, I am looking for ways to adapt the layout and content of texts while using ConTeXt. Put simple: show part of a text and sort these parts based on data from the user and the author (.dat file). The biggest problem is not knowing which part of the text will be first and how many parts will be shown. So far, I am trying to get a hang of \setupdocument (https://wiki.contextgarden.net/Project_structure) \startmode (https://wiki.contextgarden.net/Modes) \definecolor (https://wiki.contextgarden.net/Color) and \defineparagraphs (https://wiki.contextgarden.net/Command/defineparagraphs) I hope there are more ways to create adaptation. I would also like to know whether certain combination don't work together. For example, I cannot seem to get \doifmodeelse to work inside a \defineparagraphs environment. \defineparagraphs[BLpar][n=2, frame=on] \setupparagraphs [BLpar][1][width=\dimexpr.3\textwidth] \starttext % Working \enablemode[asg] \doifmodeelse{asg} {\par First sentence} {\par Second sentence} \disablemode[asg] \doifmodeelse{asg} {\par First sentence} {\par Second sentence} \doifnotmode{asg} {\par Third sentence} % Not working \enablemode[one] \startBLpar \doifmodeelse{one} {First sentence} {Second sentence} \disablemode[one] \BLpar % \disablemode[one] %% not helping TOP1 paragraphs \stopBLpar % \disablemode[one] %% needed to make the example work \startBLpar \doifmodeelse{one} {First sentence} {Second sentence} \BLpar TOP2 paragraphs \stopBLpar \startBLpar \doifnotmode{one} {Third sentence} \BLpar TOP3 paragraphs \stopBLpar \stoptext Kind regards, Susanne G. Loeber

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LMTX: Linux and Windows
by Pablo Rodriguez 14 Oct '19

14 Oct '19

Dear list, I have the following sample (slightly modified version taken from java-imp-vplayer.mkiv): \starttext \startTEXpage[offset=3em] \useJSscripts[vplayer] \setupinteraction [state=start] \externalfigure [shockwave] [frame=on, width=240pt, height=135pt, file=bathtub.mp4, label=foo] \goto{START} [JS(StartShockwave{foo})] \goto{REWIND}[JS(RewindShockwave{foo})] \goto{PAUSE} [JS(PauseShockwave{foo})] \goto{STOP} [JS(StopShockwave{foo})] \stopTEXpage \stoptext In Linux, it is compiled fine with LMTX (beta version from 2019.10.11 15:47). Using beta from 2019.10.10 in Windows, LMTX doesn’t find vplayer9.swf (https://mirrors.ctan.org/macros/latex/contrib/media9/players/VPlayer9.swf) altough it is in the same directory as the ConTeXt source file being compiled. Does anyone know what I might be missing? Could anyone confirm this issue? Many thanks for your help, Pablo -- http://www.ousia.tk

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Re: [NTG-context] PDF viewer poll
by Damien Thiriet 13 Oct '19

13 Oct '19

Hello, I am using SumatraPDF at school (Windows). Lightweight, opens where it was closed last time (very convenient when you've got presentations up to 100 slides or more that takes several weeks to be discussed). Self actualizes when the ConTeXt source is compiled. At home (OpenBSD), mupdf and zathura. Rather for ratpoisons or Vim fans (keyboard-driven). Regards, Damien Thiriet

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Sectionwise page range in ConTeXt TOC
by Jairo A. del Rio 12 Oct '19

12 Oct '19

I know ConTeXt TOC is quite customizable. However, I don't figure out how to include a page range next to section labels. For instance, something like that: 1. Chapter . . . 1 - 4 1.1 Section . . . 1 - 3 1.2 Section . . . 3 - 4 2. Chapter . . . 4 - 7 I've seen a LaTeX implementation here: https://tex.stackexchange.com/a/145206 Is something similar (or maybe better) possible? Thanks in advance.

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Re: [NTG-context] new (lmtx) beta
by Jeong Dal 12 Oct '19

12 Oct '19

Dear Hans, I read the manual of luametafun and do some examples. Thanks for many new features. It is really great. I’d like to ask two things. 1. On page 26,27, in the manual, > > http://www.pragma-ade.com/general/manuals/luametafun.pdf <http://www.pragma-ade.com/general/manuals/luametafun.pdf> a function name of the graphics are appeared as same as in the argument ‘function = “x^2 + y^2”’. Though it calculates function using “x^2 + y^2”, it is better to write the name of it as the output of $x^2 + y^2$. Is it possible to write it as in mathematical form? 2. To define a mathematical function, it uses “function = “ in Contour, while it uses “code = “ in Surfaces and in Functions. Is there any reason to use two different names “function” and “code” to define functions? Thank you again. Best regards, Dalyoung

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Difference in right justification in LMTX
by Joseph Canedo 11 Oct '19

11 Oct '19

Dear list. Given the following MWE (could not reproduce with smaller example). \setuppapersize[A5][A5] \definefontfeature[base][mode=node, protrusion=quality, expansion=quality] \definefontfamily[mainfont][serif][EBGaramond][features=base] \setupalign[hanging, lesshyphenation, hz] \setupbodyfont[mainfont, 9pt] \showframe \starttext les bestes/ & sus toute la terre/ & sus tout reptile qui bouge sur surete sur la {\righttoleft terre. Dieu} donc crea l'homme a son image. \stoptext I notice that LMTX seems to add some small gap at right margin in the 1st typeset line. I attach the pdf I get with luatex and lmtx. The showframe directive makes it more visible. Joseph

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List of Symbols/Abbreviations/Glosses with more then two entries
by Thomas Welter 11 Oct '19

11 Oct '19

The synonym "sym" defined by \definesynonyms[sym][syms][\symdesc] can take 2 entries by default: \sym[<RefName>]{<ShortName>}{<LongName>} For theses and whitepapers in the natural sciences and in engineering it is needed to introduce another entry for the unit: \sym[<RefName>]{<ShortName>}{<Unit>}{<LongName>} (<-- This does of course not compile, take it as a feature request) e.g. \sym[Salpha]{\alpha\ }{$[W~m^{-2}~K^{-1}]$}{Heat Transfer Coefficient} where \sym[Salpha]{\alpha\ }{$[W~m^{-2}~K^{-1}]$ Heat Transfer Coefficient} cannot be a good workaround since \symdesc{Salpha} should not include the unit. And of course I want the unit entry to be in a separate column when calling \placelistofsynonyms[sym] In LaTeX I accomplished this with glossaries and glossary-mcols. Is there some neat trick to get this behaviour "the ConTeXt way" (maybe with some Lua + *.aux)? The next step would be to define the table headers of the list of symbols such as "Symbol \NC Unit \NC Description"... Thanks in advance and kind regards, Thomas

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