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filling buffers in cld documents
by damien＠thiriet.web4me.fr 27 Nov '22

27 Nov '22

Hi, I am used to giving very extensive feedbacks to my pupils. These are buffers with xtables flushing lua vectors. Here is their basic structures: * an environment that stores xtables. Turned into MWE, look like: \startenvironment env_corrige.mkiv \startluacode userdata = userdata or {} function userdata.Critere (commentaire,note,notemax) context.startxcell {"width=11cm","height=2.75cm"} context(Eleve[commentaire]) context.stopxcell () context.startxcell {"width=1.5cm","align=flushright"} context(Eleve[note]) context("/") context(notemax) context.stopxcell () end \stopluacode \startbuffer [grille] \startxtable \startxrow \startxcell \ctxlua {userdata.Critere ("structure","NoteStructure",2)} \stopxcell \stopxrow \stopxtable \stopbuffer \stopenvironment * The main file is divided in subjects, each one of them being the feedback to one pupil. In a MWE fashion \useenvironment [env_corrige] \starttext \startsubject[title={Astérix}] \startluacode Eleve = { structure = "analyse très fine", NoteStructure = 2, } \stopluacode \getbuffer [grille] \stopsubject \startsubject[title={Obélix}] Eleve = { structure = "le détail doit être travaillé. Pensez à la finesse de vos menhirs…" NoteStructure = 1, } \stopsubject \getbuffer [grille] \stoptext Since whatever I fill in those files is written inside luacode environment, I tried to switch to cld documents. Here is my main file in cld version context.useenvironment({"env_corrige"}) context.starttext() context.startsubject({title="Asterix"}) Eleve = { structure = "analyse très fine", NoteStructure = 2, } context.getbuffer({"ExoCorrection"}) context.stopsubsubject() context.startsubject({title="Obélix"}) Eleve = { structure = "le détail doit être travaillé. Pensez à la finesse de vos menhirs…" NoteStructure = 1, } context.getbuffer({"ExoCorrection"}) context.stopsubsubject() context.stoptext() The troubles is that buffers are filled with the last version of Eleve table. I guess this is because the whole file is parsed and then filled in buffers. My understanding of the cld manuel is that context.tobuffer() and context.direct() should be used, but couldn't figure out how. Tried several times, also with context.step but all failed. I think I didn't properly understand the "temp" and str of context.tobuffer description in manual. What changes should I introduce to my cld files? Best regards, Damien Thiriet

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Why are my captions overlapping next text in combinations?
by Joel 26 Nov '22

26 Nov '22

I have some combinations used throughout my document like this: \starttext \startcombination[4*2] {% \framed[width=.25\textwidth, height=.25\textwidth]{}% }{% \strut word \\ \thinrule\hairline\hairline% }% \stopcombination \input knuth \stoptext This makes a box, then displays a word underneath, and then some blank lines. The problem I'm having is many times the caption text is covering up whatever appears after. In this minimal example, I tried showing the problem, but somehow this is rendering find, not covering the \input knuth text. Also, if I add more more items to the combination, the second row appears above the first row! My document is rather complex, so I couldn't find a way to simplify it enough to get a minimal example to reveal the problem that is appearing. Any ideas what might be causing the caption text to overlap and cover whatever appears after it? --Joel

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Heisenbug in current?
by Thomas A. Schmitz 23 Nov '22

23 Nov '22

Hi all, I'm very hesitant to report this because I can't reproduce it consistently: some of my files don't compile with bizarre font errors, sometimes. At first I thought it may be a hardware problem on my laptop, but I've seen more or less the same error on 3 different computers now, intermittently. The offending call is always similar: fonts > otf loading > loading '/mnt/shared/lmtx/tex/texmf/fonts/data/public/dejavu/DejaVuSansMono.ttf', hash 'dejavusansmono' otf reader > fatal error in file '/mnt/shared/lmtx/tex/texmf/fonts/data/public/dejavu/DejaVuSansMono.ttf': ...e0dde776fb1556f32e/formats/luametatex/font-otr-macro.lua:1040: attempt to call a nil value (field 'to16dot16') It concerns several fonts, both my own and (as here) from the installation, and the first error is always this "field 'to16dot16.'" Has anybody else seen this? Do the developers have any idea what this could be? Has there been a change in the code concerning this field? Sorry for being so vague, but I'm pulling my hair because this error crops up totally at random, AFAICS. All best Thomas

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thousand separator space
by Jan Willem Flamma 23 Nov '22

23 Nov '22

Dear list, Two silly short questions. Why is there an additional space after the thousand separator in math mode? And what can I do to get rid of the additional space? \starttext 1,000 \blank $1,000$ \stoptext Kind regards, Jan Willem Flamma

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Margin figure in itemize
by Alexandre Christe 22 Nov '22

22 Nov '22

Dear list, With the following MWE I end up with big gaps between margin figures in an itemized list. Is there a way to remove that space in the text and place the figures in the margin one below the other the best one can? \setuppagenumbering [alternative=doublesided, location=margin] \setuplayout [header=0pt, margin=4cm, footerdistance=.5cm, topspace=1cm, backspace=1cm, cutspace=2cm, width=fit, height=\dimexpr \paperheight-\topspace+\footerheight+\footerdistance-4cm\relax] % \showframe \definefloat [marginfigure] [figure] \setupfloat [marginfigure] [outermargindistance=-\outermargintotal, default={outermargin,height,high,low,none}] \starttext \startstaticMPfigure{square} draw fullsquare scaled 3cm; \stopstaticMPfigure \startitemize \placemarginfigure{}{\usestaticMPfigure[square]} \item bla \item bla \placemarginfigure{}{\usestaticMPfigure[square]} \item bla \stopitemize \stoptext Thanks in advance, Alex

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Font expansion enabled by default with the latest upload
by Max Chernoff 21 Nov '22

21 Nov '22

Hi Hans, Font expansion (hz) seems to be enabled by default with the latest upload. If I compile this document locally with ConTeXt "2022.11.18 13:22": \showframe % \definefontfeature[default][default][expansion=quality] % \usetypescript[modern-base] % \setupbodyfont[reset,modern] % \setupalign[hz] \starttext Hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello. \stoptext I get slightly different spacing than I do when I compile the same document on live.contextgarden.net. If I compile the document with the lines uncommitted on live.contextgarden.net, I get the same results as I do on my local installation with the lines commented. Personally, I think that enabling hz expansion by default is probably a good thing, but this change will affect a very large number of documents and you never mentioned it in the announcement email, so I suspect that it was accidentally added when you added the math hz. Thanks, -- Max

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Horizontal spacing
by Steffen Wolfrum 21 Nov '22

21 Nov '22

Hi, these line can modify the space between words: \installtolerancemethod {horizontal} {MySpace} {\spaceskip2.75pt plus1.60pt minus1.10pt\relax} \setupalign[line,block]\setfalse\raggedonelinerstate% kein hz=expansion mehr? \setuptolerance[MySpace] But how can I adjust in general the horizontal distance between glyphs (I don't mean \kern, I am looking for a general setup)? Steffen

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Xml filtering in Lua
by Thomas A. Schmitz 21 Nov '22

21 Nov '22

Hi all, I thought this was easy, but I overestimated my competence… I want to filter xml elements via their attributes and retrieve and typeset parts belonging together. Here is a small test file that explains what I’m trying: \startbuffer[test] <document> <topics> <topic id="test1"> <title>This is the first test</title> <date>22/11/16</date> </topic> <topic id="test2"> <title>This is the second test</title> <date>22/11/17</date> </topic> </topics> <chapters> <chapter id="test1"> <content> This will be the content of the <emph>first</emph> chapter. </content> </chapter> <chapter id="test2"> <content> This will be the content of the <emph>second</emph> chapter. </content> </chapter> </chapters> </document> \stopbuffer \startxmlsetups xml:testsetups \xmlsetsetup{#1}{*}{-} \xmlsetsetup{#1}{document|chapters|chapter|content|emph}{xml:*} \stopxmlsetups \xmlregistersetup{xml:testsetups} \startxmlsetups xml:document \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:chapters \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:chapter \xmlfunction {#1} {chapter} \xmlflush {#1} \stopxmlsetups \startxmlsetups xml:chapter:content \xmltext {#1} {content} \stopxmlsetups \startxmlsetups xml:emph {\em \xmlflush {#1}} \stopxmlsetups \startluacode function xml.functions.chapter (t) local ch_id = t.at.id local metadata = xml.filter (root, '../../topics/topic[@id=="%s"]', ch_id) print (inspect(metadata)) lxml.command(t, ".", "xml:chapter:content") context.par () context (ch_id) context.par () end \stopluacode \starttext \xmlprocessbuffer{main}{test}{} \stoptext The line with xml.filter does not work as I expected. How can I walk the tree, find the “topic” element with the same “id” attribute as the chapter I’m currently in, and then typeset the different children of the topic element? Thanks a lot and all best Thomas

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\setupmathematics oddity
by Alan Bowen 20 Nov '22

20 Nov '22

The following \setupmathematics[autopunctuation={all,semicolon}] %\setupmathematics[autopunctuation={all, semicolon}] %\setupmathematics[autopunctuation={all,semicolon,colon}] \starttext \startformula 0,0;2,0,35,17,40,41\textdegree{} \cdot 365;15 \cdot 40 = 2,9;23,14\textdegree{}. \stopformula \stoptext works as it should (no space after the “;” or the “,”). With the second and third versions of \setupmathematics there is an unwanted space after each punctuation mark. Alan

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annotated equations
by Henning Hraban Ramm 18 Nov '22

18 Nov '22

Here’s an interesting example for annotated equations, done with LaTeX/TikZ: https://mastodon.social/@sibin/109349703357749846 I guess something similar is possible with node anchors in ConTeXt/MetaPost? Hraban

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