November 2020 - ntg-context - NTG Mailing Lists

lmtx \placefigure and bizarre captions
by Bertrand Masson 21 Nov '20

21 Nov '20

Hello When I compile my file with ConText-Luatex from Texlive 2019 (linux debian) I get the right result. On the other hand with the last version of LMTX I have a 2nd caption above the image (see attached file). It's not on all the pictures, it's random.

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LMTX MkIV difference in expansion
by Rik Kabel 21 Nov '20

21 Nov '20

Another LMTX/MkIV difference, this time with expansion: \define\Align{yes} \starttext \startalignment[\Align] This works with MkIV but fails with LMTX, complaining: {\tt tex error on line 3 in file G:/expand.mkvi: The file ended when scanning an argument.} \blank It works in both when \tex{def} or \tex{defineexpandable} is used instead of \tex{define}. \blank What changed? \stopalignment \stoptext It may well be that I have been abusing some laxity in MkIV and that LMTX is a bit stricter in what it accepts, but I would like to know if this is an expected difference. -- Rik

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Problem with setupcharacterspacing and comma
by Rik Kabel 21 Nov '20

21 Nov '20

Hello all, Playing with define/setup/set characterspacing, I have come across some odd, perhaps buggy, behavior. This applies to both MkIV 2020.11.19 11:23 and LMTX 2020.11.19 11:28. The problem is that character spacing is not effected for the left side of the comma character. It is handled as expected for other characters that I have tested, but I have not performed extensive tests. Example code: \definecharacterspacing[Test] \setupcharacterspacing [Test] ["002C] [left =.25,right=1,alternative=1] % , \setupcharacterspacing [Test] ["0065] [left=0.5,right=1,alternative=1] % e \setupcharacterspacing [Test] ["003B] [left=0.5,right=1,alternative=1] % e \startTEXpage[offset=1em] abc; def, g \setcharacterspacing[Test]abc; def, g \stopTEXpage Output: -- Rik

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Re: [NTG-context] bizarre bug in xml
by Wolfgang Schuster 21 Nov '20

21 Nov '20

Thomas A. Schmitz schrieb am 20.11.2020 um 22:57: > > On 11/20/20 10:52 PM, Wolfgang Schuster wrote: >> Optional arguments (e.g. plus/minus values for \hskip) for commands >> are handled different in LMTX but it was always recommended to add >> \relax after the last value. > > Thank you Wolfgang, that makes the file indeed compile again! Any > explanation for the strange behavior of the error? In LMTX the order of the plus and minus values of \hskip can be written in any order and it's even possible to set them multiple times (try the example below with LuaTeX and LMTX). To check whether a stretch or shrink value is set LMTX takes a look at the next character (p, P, m or M) before it makes a decision, when you have now a word after \hskip which start with one of these characters (e.g. Materiam) you trigger the scanner which fails because it didn't find a keyword. To avoid such problems always add \relax after the last value of \hskip, this is even explained in one of the exercises in the TeXbook. \starttext a\hskip 1cm plus 5mm minus 5mm b a\hskip 1cm minus 5mm plus 5mm b a\hskip 1cm pLuS 5mm MiNuS 5mm b a\hskip 1cm plus 5mm minus 5mm plus 1cm b \stoptext Wolfgang

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bizarre bug in xml
by Thomas A. Schmitz 21 Nov '20

21 Nov '20

Hi all, this is the most bizarre bug I've ever seen in context. I would be grateful if others could try to replicate it. Test file: \startbuffer[test] <document> <hskip width="1em"/>Materiam vati da Venus alma tuo. </document> \stopbuffer \startxmlsetups xml:testsetups \xmlsetsetup{#1}{*}{-} \xmlsetsetup{#1}{document| hskip}{xml:*} \stopxmlsetups \xmlregistersetup{xml:testsetups} \startxmlsetups xml:document \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:hskip \hskip\xmlatt{#1}{width} \stopxmlsetups \starttext \xmlprocessbuffer{main}{test}{} \stoptext This gives an error with the latest lmtx (2020.11.19 11:28, linux 64 bit): tex error > tex error on line 10 in file ./xmltest.tex: Valid keyword expected, likely 'minus' <lua output> Ma teriam vati da Venus alma tuo. <macro> \22>:xml:document #1->\xmlflush {#1} <lua output> } <macro> \22>:xml:process #1->\xmlregistereddocumentsetups {#1}{#1}\xmlmain {#1} <macro> \lxml_process ...ocument {#3}#2{#3}{#4}\setcatcodetable \notcatcodes \doifelsenothing {#5}{\xmlsetup {#3}{xml:process}}{\xmlsetup {#3}{#5}} \endgroup <line 4.24> \xmlprocessbuffer{main}{test}{} The file compiles cleanly if I give the --luatex switch. Now for the bizarre part: if you delete the capital M of "Materiam" or replace it by any other capital letter, the file compiles. What's going on here? Thanks, and all best Thomas

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\noindentation not working
by Pablo Rodriguez 20 Nov '20

20 Nov '20

Dear list, I have the following MWE: \showframe\showgrid \setupindenting[yes, always, big] \starttext \noindentation a a \stoptext Using LMTX (2020.11.19 11:28), I get indentation with \noindentation. Could anyone confirm this? Many thanks for your help, Pablo -- http://www.ousia.tk

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Piecewise margin line
by Johann Birnick 20 Nov '20

20 Nov '20

Hello, I want to setup some fancy theorem style for my math notes. For this I want to have a colored margin line next to my theorems. It should look like this: https://i.ibb.co/F6L59pD/idea.png The line should stretch over the whole theorem, not just the first line. (But the latter would be a beginning, though.) Important to note is that the line should be *on the margin*, not in the text. So do you have an idea on how I could do that? I would greatly appreciate your answer. Thank you! Best regards, Johann

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Bilingual text on facing pages
by MANUEL GONZALEZ SUAREZ 20 Nov '20

20 Nov '20

Hello everyone: Do you know if we can make bilingual editions with ConTeXt, as they are done with the reledpar package for LaTeX? I have consulted this page (https://tex.stackexchange.com/questions/113899/parallel-text-in-context) but I don't really understand what can be done. I have tried the code with MKIV but it does not work well. Thank you. Manuel González

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Re: [NTG-context] new upload
by Damien Thiriet 19 Nov '20

19 Nov '20

Hi, Problem also fixed on OpenBSD 6.8 amd64. New binaries installed and working like a charm. Makes my workflow much easier, so many thanks to Pablo for finding the bug and to Hans for fixing it. Best regards, Damien Thiriet

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autostart included video
by Aditya Mahajan 19 Nov '20

19 Nov '20

Hi, I use \externalfigure[filename.mp4] to include a video in a presentation. Is it possible to autostart the video automatically when the page is loaded? Thanks, Aditya

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