April 2021 - ntg-context - NTG Mailing Lists

img.scan in lmtx?
by Henning Hraban Ramm 05 Aug '21

05 Aug '21

Hi, I use the lua function img.scan{filename}, but in lmtx I get "attempt to index a nil value (global 'img')", so I guess this got renamed or moved? HR

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A not so short introduction to ConTeXt Mark IV
by Joaquín Ataz López 28 Jul '21

28 Jul '21

Hello to all: Two months ago I informed to the list that I had written an introduction in Spanish to ConTeXt Mark IV. This interested several people, and in order to increase their potential audience, a member of this list (native English speaker) has proceeded to translate my text into English. It is precisely the members of this list who need no introduction at all, but it can sometimes be useful to help someone get started with the fascinating typesetting system that is ConTeXt. As for the English translation, I have made some small changes to the Spanish version, so anyone who understands Spanish and prefers to read it in its original language can download the new version: Both versions are available at the following links - Spanish: https://webs.um.es/jal/docs/introCTX_esp.pdf - Engilish: https://webs.um.es/jal/docs/introCTX_eng.pdf Soon I will send both texts, with their source files, to the documentation section of the CTAN repository. -- Joaquín Ataz López Derecho Civil Universidad de Murcia

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LMTX: different output if dots are used in the file name
by Marco Patzer 08 Jul '21

08 Jul '21

Hi! LMTX and MkIV behave differently if dots are used in the file name. Example: printf '%s\n' '\starttext\null\stoptext' > foo.10.tex && context foo.10.tex MkIV: → foo.10.pdf LMTX: → foo.pdf Is this intentional? This is LuaMetaTeX, Version 2.06.05 current version: 2020.05.25 23:39 Marco

5 17

PDF forms not creating proper children
by Leonard Janis Robert König 09 Jun '21

09 Jun '21

Hello, I currently try to build a document with AcroForms, e.g., the examples from [1] also linked in the Wiki. The most recent example is in the form/ subdirectory and dated mid 2020. However, when building the file(s) with my ConTeXt distribution the file created is broken, in comparison to the PDF checked in into the Git. The more obvious difference is that the PDF in the repository can be filled in the Firefox 89 beta, while the other PDF doesn't even display the fields as forms. Running pdfinfo also yields: > Syntax Error: Form field child is not a dictionary I suspect that due to some breakage the forms children aren't set in the AcroForms dictionary anymore? My ConTeXt versions are: # ArchLinux Repos context --version mtx-context | ConTeXt Process Management 1.04 mtx-context | mtx-context | main context file: /usr/share/texmf- dist/tex/context/base/mkiv/context.mkiv mtx-context | current version: 2021.03.05 19:11 mtx-context | main context file: /usr/share/texmf- dist/tex/context/base/mkxl/context.mkxl mtx-context | current version: 2021.03.05 19:11 # Debian Buster Repos mtx-context | ConTeXt Process Management 1.02 mtx-context | mtx-context | main context file: /usr/share/texmf/tex/context/base/mkiv/context.mkiv mtx-context | current version: 2018.04.04 00:51 # Docker Image: Current mtx-context | ConTeXt Process Management 1.03 mtx-context | mtx-context | main context file: /context/tex/texmf- context/tex/context/base/mkiv/context.mkiv mtx-context | current version: 2020.01.30 14:13 mtx-context | main context file: /context/tex/texmf- context/tex/context/base/mkiv/context.mkxl mtx-context | current version: 2020.01.30 14:13 # Docker Image: Beta mtx-context | ConTeXt Process Management 1.03 mtx-context | mtx-context | main context file: /context/tex/texmf- context/tex/context/base/mkiv/context.mkiv mtx-context | current version: 2020.01.30 14:13 mtx-context | main context file: /context/tex/texmf- context/tex/context/base/mkiv/context.mkxl mtx-context | current version: 2020.01.30 14:13 # Docker Image: LMTX mtx-context | ConTeXt Process Management 1.04 mtx-context | mtx-context | main context file: /context/tex/texmf- context/tex/context/base/mkiv/context.mkiv mtx-context | current version: 2021.04.14 22:58 mtx-context | main context file: /context/tex/texmf- context/tex/context/base/mkxl/context.mkxl mtx-context | current version: 2021.04.14 22:58 # Docker Image: Beta from 2019-09 mtx-context | ConTeXt Process Management 1.03 mtx-context | mtx-context | main context file: /context/tex/texmf- context/tex/context/base/mkiv/context.mkiv mtx-context | current version: 2019.09.10 20:03 mtx-context | main context file: /context/tex/texmf- context/tex/context/base/mkiv/context.mkxl mtx-context | current version: 2019.09.10 20:03 The ConTeXt version of the checked in file on GitHub is (according to pdfinfo): > Creator: LuaTeX 1.10 7138 + ConTeXt MkIV 2019.08.20 17:20 > Producer: macOS Version 10.14.6 (Build 18G5033) Quartz PDFContext I also remebered another time were I toyed around with it and indeed that PDF also had broken form field children: > Creator: LuaTeX 1.12 7306 + ConTeXt MkIV 2020.03.10 14:44 > Producer: LuaTeX-1.12 A broken version that I built locally using the :current IslandOfTeX [2] can be found at [3]. The version difference between the broken and not-broken PDFs hints that the breakage occured between 2019.08.20 and 2019.09.10-beta, while the Debian breackage might be due to a backport(?) Alternatively, this could just be a mistake on my side? Cheers Leo König [1]: https://github.com/fiee/ConTeXt [2]: https://gitlab.com/islandoftex/images/context/ [3]: https://mega.nz/file/ThcghTqb#JqRCSsd59bBbMgTMr3ahaPdU4LPlZd0cpA3ZFBJLJ3A

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Hyphenation again
by Denis Maier 06 Jun '21

06 Jun '21

Hi, another weird thing: In this example I use \startexceptions to set hyphenation exceptions: ``` \mainlanguage[en] \startexceptions[en] appli-cable obli-gated \stopexceptions \setuplayout[width=1cm] \starttext \currentmainlanguage \currentlanguage \hyphenatedword{applicable} applicable \hyphenatedword{obligated} obligated \stoptext ``` What am I missing? Best, Denis

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new page before xtable with repeated headers
by Werner Hennrich 31 May '21

31 May '21

Hello everyone, I'm having an xtable spanning several pages and need to have its headers repeated. For this I've set "split=repeat", but unfortunately this causes the table to start with a new new page leaving the rest of the preceding page empty. Having "split=yes" makes the tabe continue on the previous page as a need it to, but then the header isn't repeated any longer. I realize that there has been a very similar question already in https://www.mail-archive.com/ntg-context@ntg.nl/msg93775.html, but my problem happens isolated in a very clean situation w/o any header, floats or the like - and I don't see yet how I can get this working in my situation. Any help is highly appreciated, here is a MWE of my problem: \definextable[mytable] \setupxtable[mytable] [ option=max, split=repeat, %split=yes, header=repeat, width=\textwidth ] \definextable[mytable:header] \setupxtable[mytable:header] [ foregroundstyle=\bf, foregroundcolor=darkred, ] % ================================================== \startdocument \dorecurse{2} { \input tufte \vskip7mm } \startxtable[mytable] \startxtablehead \startxrow[mytable:header] \startxcell Some Header \stopxcell \startxcell More Header \stopxcell \stopxrow \stopxtablehead \startxtablebody \dorecurse{10} { \startxrow \startxcell {\bf (\recurselevel) some tale:} \startitemize \item a quick \item brown fox \item jumps over \item the lazy dog \stopitemize \stopxcell \startxcell {\bf and a fact:} \startitemize \item the vodka \item is good \item but the meat \item is rotten \stopitemize \stopxcell \stopxrow } \stopxtablebody \stopxtable \stopdocument Thank you very much i.a., Werner

2 7

How to write readable source files?
by Jan U. Hasecke 30 May '21

30 May '21

Hi all, how do you format your ConTeXt source files? I recently discovered prettier which reformats source files for different markup and programming languages such as html, markdown, json etc. There are some other tools around but I don't find anything for ConTeXt. Do you know of any prettifying tool? Is there a best practice for ConTeXt source files, at all? Ciao! Jan Ulrich Hasecke

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Issue running ConTeXt from TeX Live 2019 on Alpine Linux 3.12
by Nicola 16 May '21

16 May '21

I'd like to run ConTeXt on Alpine Linux (ultimately, to run it on an iPad with the iSH app). I am currently testing it with Docker. This is what I have done: docker pull econcz/x86-alpine-glibc:ish-import docker run -it econcz/x86-alpine-glibc:ish-import /bin/sh cp /etc/apk/repositories /tmp/repositories cat /etc/os-release ALPINE_VERSION=3.12 # Set accordingly to previous command echo "http://nl.alpinelinux.org/alpine/v${ALPINE_VERSION}/main/" | tee /etc/apk/repositories echo "http://nl.alpinelinux.org/alpine/v${ALPINE_VERSION}/community/" | tee -a /etc/apk/repositories apk update This installs and configures repos for Alpine Linux 3.12. Then, I install TeX Live as follows: apk add texlive-full texlive-xetex texlive-luatex texlive-dev apk add ghostscript ghostscript-fonts ghostscript-dev apk add graphicsmagick graphicsmagick-dev Then, I run `mtxrun --generate`, which exits instantly with the output reported below. However, that is apparently not enough. I still get: $ context Hello-world.tex mtxrun | unknown script 'context.lua' or 'mtx-context.lua' $ context --version mtxrun | unknown script 'context.lua' or 'mtx-context.lua' $ mtxrun --version mtxrun | ConTeXt TDS Runner Tool 1.32 mtxrun | source path $ mtxrun --script context mtxrun | unknown script 'context.lua' or 'mtx-context.lua' $ luatools --generate mtxrun | unknown script 'base.lua' or 'mtx-base.lua' $ find / -name context.lua /usr/share/texmf-dist/scripts/context/lua/context.lua $ find / -name mtx-context.lua /usr/share/texmf-dist/scripts/context/lua/mtx-context.lua $ find / -name base.lua [Nothing found] $ find / -name mtx-base.lua /usr/share/texmf-dist/scripts/context/lua/mtx-base.lua Anyone running ConTeXt on Alpine? Any idea what is wrong? Nicola >mtxrun --generate resolvers | resolving | variable 'SELFAUTOLOC' set to '/usr/bin' resolvers | resolving | variable 'SELFAUTODIR' set to '/usr' resolvers | resolving | variable 'SELFAUTOPARENT' set to '.' resolvers | resolving | variable 'TEXMFCNF' set to '' resolvers | resolving | variable 'TEXMF' set to '' resolvers | resolving | variable 'TEXOS' set to 'usr' resolvers | resolving | resolvers | resolving | using configuration specification 'home:texmf/web2c;{selfautoloc:,selfautoloc:/share/texmf-local/web2c,selfautoloc:/share/texmf-dist/web2c,selfautoloc:/share/texmf/web2c,selfautoloc:/texmf-local/web2c,selfautoloc:/texmf-dist/web2c,selfautoloc:/texmf/web2c,selfautodir:,selfautodir:/share/texmf-local/web2c,selfautodir:/share/texmf-dist/web2c,selfautodir:/share/texmf/web2c,selfautodir:/texmf-local/web2c,selfautodir:/texmf-dist/web2c,selfautodir:/texmf/web2c,$SELFAUTOGRANDPARENT/texmf-local/web2c,selfautoparent:,selfautoparent:/share/texmf-local/web2c,selfautoparent:/share/texmf-dist/web2c,selfautoparent:/share/texmf/web2c,selfautoparent:/texmf-local/web2c,selfautoparent:/texmf-dist/web2c,selfautoparent:/texmf/web2c}' resolvers | resolving | resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/root/texmf/web2c' from specification 'home:texmf/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on weird path '/usr/bin' from specification 'selfautoloc:' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/usr/bin/share/texmf-local/web2c' from specification 'selfautoloc:/share/texmf-local/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/usr/bin/share/texmf-dist/web2c' from specification 'selfautoloc:/share/texmf-dist/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/usr/bin/share/texmf/web2c' from specification 'selfautoloc:/share/texmf/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/usr/bin/texmf-local/web2c' from specification 'selfautoloc:/texmf-local/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/usr/bin/texmf-dist/web2c' from specification 'selfautoloc:/texmf-dist/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/usr/bin/texmf/web2c' from specification 'selfautoloc:/texmf/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on weird path '/usr' from specification 'selfautodir:' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/usr/share/texmf-local/web2c' from specification 'selfautodir:/share/texmf-local/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/usr/share/texmf-dist/web2c' from specification 'selfautodir:/share/texmf-dist/web2c' resolvers | resolving | found regular configuration file '/usr/share/texmf-dist/web2c/texmfcnf.lua' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/usr/share/texmf/web2c' from specification 'selfautodir:/share/texmf/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/usr/texmf-local/web2c' from specification 'selfautodir:/texmf-local/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/usr/texmf-dist/web2c' from specification 'selfautodir:/texmf-dist/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '/usr/texmf/web2c' from specification 'selfautodir:/texmf/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path '$SELFAUTOGRANDPARENT/texmf-local/web2c' from specification '$SELFAUTOGRANDPARENT/texmf-local/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on weird path '.' from specification 'selfautoparent:' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path './share/texmf-local/web2c' from specification 'selfautoparent:/share/texmf-local/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path './share/texmf-dist/web2c' from specification 'selfautoparent:/share/texmf-dist/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path './share/texmf/web2c' from specification 'selfautoparent:/share/texmf/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path './texmf-local/web2c' from specification 'selfautoparent:/texmf-local/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path './texmf-dist/web2c' from specification 'selfautoparent:/texmf-dist/web2c' resolvers | resolving | looking for regular 'texmfcnf.lua' on given path './texmf/web2c' from specification 'selfautoparent:/texmf/web2c' resolvers | resolving | resolvers | resolving | loading configuration file 'selfautodir:/share/texmf-dist/web2c/texmfcnf.lua' resolvers | resolving | resolvers | resolving | locating list of 'home:.texlive2020/texmf-config' (runtime) (tree:///home:.texlive2020/texmf-config) resolvers | methods | resolving, method 'locators', how 'uri', handler 'tree', argument 'tree:///home:.texlive2020/texmf-config' resolvers | trees | locator 'home:.texlive2020/texmf-config' not found resolvers | resolving | locating list of 'home:texmf' (runtime) (tree:///home:texmf) resolvers | methods | resolving, method 'locators', how 'uri', handler 'tree', argument 'tree:///home:texmf' resolvers | trees | locator 'home:texmf' not found resolvers | resolving | locating list of 'selfautoparent:texmf-config' (cached) resolvers | methods | resolving, method 'locators', how 'uri', handler 'file', argument 'selfautoparent:texmf-config' resolvers | files | file locator 'selfautoparent:texmf-config' not found resolvers | resolving | locating list of 'selfautoparent:texmf-var' (cached) resolvers | methods | resolving, method 'locators', how 'uri', handler 'file', argument 'selfautoparent:texmf-var' resolvers | files | file locator 'selfautoparent:texmf-var' not found resolvers | resolving | locating list of 'selfautoparent:texmf-project' (cached) resolvers | methods | resolving, method 'locators', how 'uri', handler 'file', argument 'selfautoparent:texmf-project' resolvers | files | file locator 'selfautoparent:texmf-project' not found resolvers | resolving | locating list of 'selfautoparent:texmf-fonts' (cached) resolvers | methods | resolving, method 'locators', how 'uri', handler 'file', argument 'selfautoparent:texmf-fonts' resolvers | files | file locator 'selfautoparent:texmf-fonts' not found resolvers | resolving | locating list of '.' (cached) resolvers | methods | resolving, method 'locators', how 'uri', handler 'file', argument '.' resolvers | files | file locator '.' found as '.' resolvers | resolving | hash '.' appended resolvers | resolving | locating list of 'selfautoparent:texmf-dist' (cached) resolvers | methods | resolving, method 'locators', how 'uri', handler 'file', argument 'selfautoparent:texmf-dist' resolvers | files | file locator 'selfautoparent:texmf-dist' not found resolvers | resolving | resolvers | methods | resolving, method 'generators', how 'uri', handler 'file', argument '.' resolvers | expansions | scanning path '.', branch '.' resolvers | expansions | 305 files found on 22 directories with 39 uppercase remappings resolvers | resolving | resolvers | resolving | saving tree '.' resolvers | caches | hashing tree '.', hash '5058f1af8388633f609cadb75a75dc9d' resolvers | caches | hashing tree 'selfautodir:/share/texmf-dist/web2c/texmfcnf.lua', hash '0399a8df3aef8d154781d0a9c2b8e28d' resolvers | caching | preparing 'files' for '.' resolvers | caching | category 'files', cachename '.' saved in '/root/.texlive2020/texmf-var/luatex-cache/context/0399a8df3aef8d154781d0a9c2b8e28d/trees/5058f1af8388633f609cadb75a75dc9d.lua' system | lua | compiling '/root/.texlive2020/texmf-var/luatex-cache/context/0399a8df3aef8d154781d0a9c2b8e28d/trees/5058f1af8388633f609cadb75a75dc9d.lua' into '/root/.texlive2020/texmf-var/luatex-cache/context/0399a8df3aef8d154781d0a9c2b8e28d/trees/5058f1af8388633f609cadb75a75dc9d.luc' system | lua | dumping '/root/.texlive2020/texmf-var/luatex-cache/context/0399a8df3aef8d154781d0a9c2b8e28d/trees/5058f1af8388633f609cadb75a75dc9d.lua' into '/root/.texlive2020/texmf-var/luatex-cache/context/0399a8df3aef8d154781d0a9c2b8e28d/trees/5058f1af8388633f609cadb75a75dc9d.luc' stripped resolvers | caching | 'files' compiled to '/root/.texlive2020/texmf-var/luatex-cache/context/0399a8df3aef8d154781d0a9c2b8e28d/trees/5058f1af8388633f609cadb75a75dc9d.luc' mtxrun | mtxrun | elapsed lua time: 0.056 seconds

5 13

latest standalone—lua error
by Alan Bowen 30 Apr '21

30 Apr '21

With ConTeXt ver: 2021.04.28 18:39 LMTX fmt: 2021.4.29 int, I am now getting the following error on compiling with files that were OK previously. Is there something that I need to change? Alan lua error > lua error on line 232 in file ../../env_Aestimatio-00.tex: registered function call [1151]: ...TeX/tex/texmf-context/tex/context/base/mkiv/font-sel.lua:648: attempt to index a nil value (field 'tf') stack traceback: ...TeX/tex/texmf-context/tex/context/base/mkiv/font-sel.lua:648: in field 'filefallback' ...TeX/tex/texmf-context/tex/context/base/mkiv/font-sel.lua:666: in field 'mathfallback' ...TeX/tex/texmf-context/tex/context/base/mkiv/font-sel.lua:692: in field 'fallback' ...TeX/tex/texmf-context/tex/context/base/mkiv/font-sel.lua:782: in function <...TeX/tex/texmf-context/tex/context/base/mkiv/font-sel.lua:777> (...tail calls...) 222 expansion=quality, 223 mode=node, 224 force=yes, 225 ] 226 \definefallbackfamily[mainface] [mm] [STIX Two Text] 227 [range=digitsnormal, 228 force=yes, 229 features=f:oldstyle] 230 231 \definefontfamily[mainface][mm][STIX Two Math] 232 >> 233 \setupbodyfont[mainface, 10pt] 234 235 \setupalign[hanging, stretch, hz] 236 237 %%%%%%%%%% French 238 %At beginning insert: 239 % \mainlanguage[fr] 240 % \setcharacterspacing[frenchpunctuation] 241 % \startsetups[footnote:french] 242 %\setcharacterspacing[frenchpunctuation] mtx-context | fatal error: return code: 256

3 7

custom zig zag sidebars
by mf 29 Apr '21

29 Apr '21

Hello, I made an experiment to add alternatives to sidebars (see attachment). I discovered the sidebar is drawn by anch_sidebars_draw in metapost/context/base/mpiv/mp-apos.mpiv. I've redefined it locally to add alternatives. To make fancy, zig zag bars I defined a macro, draw_pattern_bar, that draws a bar repeating a pattern which is a path connecting (0,0) and (1,0). The macro has 3 parameters (actually it has more params, but the remainder are anch_sidebars_draw params): - a pattern, which is a path from (0,0) to (1,0) that should have a vertical size = 1; it's a sort of waveform - a pattern length, by which the pattern is xsized - a pattern width, by which the pattern is ysized Then the pattern is rotated along the bar direction (so -90 degrees) and drawn many times until it covers the bar length. A proposal and a question: - patternlength and patternwidth could become \setupsidebar params; alternative (=2,3,4...) could be used to specify the pattern (a sort of waveform); currently alternative=0 is a solid bar and alternative=1 is a dashed one - in case of long patterns (a patternlength spanning more lines of text) the last replica of the pattern should be clipped not to exceed the last line of the sidebarred text (see the last example): how can that be done? Massi

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