May 2022 - ntg-context - NTG Mailing Lists

How to add margin around standalone MetaPost?
by Vincent Hennebert 24 May '22

24 May '22

Take the following MetaPost file: beginfig(0) ahlength := 20; linejoin := mitered; drawarrow origin--(40,0) withpen pencircle scaled 5; endfig; Render it into PDF with ConTeXt. Witness the cut out ends of the arrow. How to fix that? Being able to add some margin would be a solution, which may be desirable anyway in some cases. Is that possible? Thanks, Vincent

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XML Namespaces and XML Setups
by Christoph Reller 24 May '22

24 May '22

Dear List, Consider the following MWE: \startxmlsetups xml:demo:base \xmlsetsetup{#1}{tag}{xml:demo:tag} \stopxmlsetups \xmlregisterdocumentsetup{demo}{xml:demo:base} \startxmlsetups xml:demo:tag %\doif{\xmlnamespace{#1}}{o}{NameSpaceO:} \xmlflush{#1} \stopxmlsetups \starttext \startbuffer[test] <?xml version="1.0"?> <root xmlns="NameSpaceA" xmlns:o="NameSpaceO"> <tag>text</tag> <o:tag>text</o:tag> </root> \stopbuffer \xmlprocessbuffer{demo}{test}{} \stoptext My questions: - Is there a good way to have a separate XML setup for each XML namespace? - Alternatively, one has to do the distinction within the same XML setup. In this case, how do we get the complete namespace? (In this example: "NameSpaceA" and "NameSpaceO") Thanks in advance for your help! Cheers, Christoph

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Cron <context@zapf> /var/www/aanhet.net/context/bin/cron/context-mirror
by root＠ntg.nl 22 May '22

22 May '22

@ERROR: Unknown module 'all' rsync error: error starting client-server protocol (code 5) at main.c(1666) [Receiver=3.1.2]

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is \version[temporary] still alive?
by Steffen Wolfrum 22 May '22

22 May '22

Hi, testing this mwe I’d expect some indicators detecting overfull lines. At least on my machine (ConTeXt ver: 2022.01.21 20:13 LMTX) nothing happens: \setuppapersize[A6] % Tell ConTeXt where the windmill picture is \setupexternalfigures[location={default}] \version[temporary] \section{Slithy toves} % Top right of page will show successful reference '< fig2' % Left margin will mention unsuccessful reference 'figNothing->' See \in{Figure}[fig2] and \in{Figure}[figNothing]. % Top right of page will show new-created anchors '> fig1' and '> fig2' % Top right of page will show successfully placed floats \placefigure[here][fig1]{First windmill}{ \externalfigure[mill][width=1cm] } \placefigure[here][fig2]{Second windmill}{ \externalfigure[mill][width=1cm] } \startcolumns[n=3] % Overfull lines will have slugs in colum margins. \input linden % Underfull hboxes get no warning x \stopcolumns Steffen

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Metapost examples seems broken
by Jan-Erik Hägglöf 22 May '22

22 May '22

HI! I have issues to access the very most useful place to get inspiration to write MetaFun code. Google Chrome reports security issues Maybe this could be off topic in this forum, if so, My apologize in advance. But maybe someone knows the author of this site https://tex.loria.fr/prod-graph/zoonekynd/metapost/metapost.html <https://tex.loria.fr/prod-graph/zoonekynd/metapost/metapost.html> /Jan-Erik

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Interactive checkbox in ConTeXt
by Jan-Erik Hägglöf 22 May '22

22 May '22

HI! How do I accomplish a similar funktion like this, that is written in latex, but in context instead? LATEXCODE \documentclass{article} \usepackage{hyperref} \begin{document} \begin{Form} \CheckBox[name=mycheckbox,checkboxsymbol=\ding{53}]{This is a check box:} \end{Form} \end{document} Thanks in advance Jan-Erik

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ignore not closed tags in XML input
by Pablo Rodriguez 21 May '22

21 May '22

Dear list, I would like to feed https://seumasjeltzz.github.io/LinguaeGraecaePerSeIllustrata/001.html as XML input for ConTeXt. The problem is that (as many other XML files that I haven’t generated myself) some <meta> and <link> tags aren’t closed, such as in: <meta charset="utf-8"> <link href="https://fonts/css?greek" rel="stylesheet"> <link href="style.css" rel="stylesheet"> So, all that I get is the following message: invalid xml file - parsed text Unsuccessfully I have tried the following: \xmlsetsetup{#1}{html/head/(meta|link)}{-} Is there no way to make ConTeXt more tolerant, so that it is able to ignore those tags? Many thanks for your help, Pablo

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MetaFun manual's "texvar" is not working for me
by Gavin 21 May '22

21 May '22

Hello list, I’m trying to reproduce the positional graphics examples in the MetaFun manual on pp. 151-153. There are two examples of code for the mpos:box. The first example uses \MPvar to retrieve variables set using \setupMPvariables. This works fine. The second example uses texvar to retrieve variables, but it does not work in the current LMTX. However, the second example does work with my TeXLive install. I’ve put my working example below, with both versions of the mpos:box code. Log output from a failed run is below that. Any ideas where I might be going wrong? Thanks! Gavin \setupbackgrounds [page] [background={backgraphics,foreground,foregraphics}] \defineoverlay [backgraphics] [\positionoverlay{backgraphics}] \defineoverlay [foregraphics] [\positionoverlay{foregraphics}] \setupMPvariables [mpos:box] [linecolor=blue, linewidth=\linewidth, fillcolor=lightgray, filloffset=2pt] %%%%%%%% This mpos:box works using \MPvar. %%%%%%% \startMPpositiongraphic{mpos:box}{fillcolor,linecolor,linewidth} string tag; tag := "\MPvar{self}" ; path box ; box := positionbox(tag) ; box := box enlarged \MPvar{filloffset} ; fill box withcolor \MPvar{fillcolor} ; draw box withcolor \MPvar{linecolor} withpen pencircle scaled \MPvar{linewidth} ; positioninregion ; \stopMPpositiongraphic %%%%%%% This mpos:box does not work using texvar. (log below) %%%%%%% %\startMPpositiongraphic{mpos:box}{fillcolor,linecolor,linewidth} % path box ; box := positionbox(texstr("self")) ; % box := box enlarged texvar("filloffset") ; % fill box % withcolor texvar("fillcolor") ; % draw box % withcolor texvar("linecolor") % withpen pencircle scaled texvar("linewidth") ; % positioninregion ; %\stopMPpositiongraphic \starttext to get \hpos {A-0} {positions} sorted \startpositionoverlay{backgraphics} \setMPpositiongraphic{A-0}{mpos:box}{self=A-0} \stoppositionoverlay \stoptext system > system > ConTeXt ver: 2022.05.11 11:36 LMTX fmt: 2022.5.20 int: english/english system > system > 'cont-new.mkxl' loaded open source > level 1, order 1, name '/Users/Gavin/context-osx-arm64/tex/texmf-context/tex/context/base/mkxl/cont-new.mkxl' system > beware: some patches loaded from cont-new.mkiv close source > level 1, order 1, name '/Users/Gavin/context-osx-arm64/tex/texmf-context/tex/context/base/mkxl/cont-new.mkxl' system > files > jobname './ContractionExperiments', input './ContractionExperiments.tex', result './ContractionExperiments' fonts > latin modern fonts are not preloaded languages > language 'en' is active system > synctex functionality is enabled, expect 5-10 pct runtime overhead! open source > level 1, order 2, name './ContractionExperiments.tex' fonts > preloading latin modern fonts (second stage) fonts > 'fallback modern-designsize rm 12pt' is loaded metapost > initializing instance 'metafun:1' using format 'metafun' and method 'double' metapost > loading 'metafun' as 'metafun.mpxl' using method 'double' metapost > initializing number mode 'double' metapost > trace > This is MPLIB for LuaMetaTeX, version 3.12, running in double mode. metapost > trace > metapost > trace > loading metafun for lmtx, including the plain 1.004 base definitions metapost > trace > metafun > log > metafun > log > error: Missing ')' has been inserted metafun > log > metapost > trace > <to be read again> , metapost > trace > <macro> paired -> <primary> -> begingroup.if.pair(EXPR2):(EXPR2)else:((EXPR2),(EXPR2))fi.endgroup metapost > trace > <to be read again> , metapost > trace > <macro> llmoved -> -> ((llcorner(EXPR0))shifted(-xpart.paired((EXPR1)),-ypart.paired((EXPR1)))) metapost > trace > <to be read again> { metapost > trace > <macro> -- -> -> {curl1}..{curl1} metapost > trace > <macro> enlarged -> -> ((EXPR0)llmoved(EXPR1)--(EXPR0)lrmoved(EXPR1)--(EXPR0)urmoved(EXPR1)--(EXPR0)ulmoved(EXPR1)--cycle) metapost > trace > <to be read again> ; metafun > log > metafun > log > I found no right delimiter to match a left one. So I've put one in, behind the scenes; this may fix the problem. metafun > log > metapost > trace > <direct> path box ; box := positionbox(texstr("self")) ; box := box enlarged texvar("filloffset") ; fill box withcolor texvar("fillcolor") ; draw box withcolor texvar("linecolor") withpen pencircle scaled texvar("linewidth") ; positioninregion ; ; metapost > trace > backend > xmp > using file '/Users/Gavin/context-osx-arm64/tex/texmf-context/tex/context/base/mkiv/lpdf-pdx.xml' pages > flushing realpage 1, userpage 1, subpage 1

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Re: [NTG-context] Achieving the style of Jean-Luc Doumont
by Susanne G. Loeber 20 May '22

20 May '22

> > Dear list, > > Years ago I stumbled upon the work of Jean-Luc Doumont. He typesets all his documents using TeX, although his modified Version > called Quantum. The whole idea of his fascinating approach is that the page > is quantized in 2 dimensions and that all positioning, even graphical > elements stick to that grid. I'm attaching a link to a presentation by him > in which he gives some fragments of code that I, unfortunately, have a hard > time understanding. > Thank you for the pdf! I'm interested in replicating this 2d grid in Context. How would one go > about enforcing such strict 2d organization? As I get it he does a lot of > manual tweaking, and his documents are less automated and more hand > crafted than a typical Context document.I'm specifically interested in > using this approach for report generation. It would be wonderful to have, especially for adaptation, personalisation purposes. To me data I/O is not an issue since I would use a Python script to > generate the markup. > Even though I am not a programmer, I would like to be of help. For example: brainstorming or testing ideas. I hope there are more enthousiasts eager to help. (Thanks Aditya.) > I know the question is pretty general, but any pointers would be welcome. > Maybe the first thing useful would be the grid and how to position > everything in accordance with it. I envisioned this thread more for > discussion and suggestions than a complete recreation of his ideas. As I > learn Context and Metapost, I hope I will figure out how to recreate his > work. Sorry for the blog post :) > > Link to files: > > https://drive.google.com/drive/folders/1KpYbDlukvSCirKkFvJICOX3wABl_83bW?us… > > Sincerely, > Stefan > Kind regards, Susanne G. Loeber

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split TABLE cells
by Steffen Wolfrum 19 May '22

19 May '22

Hi, I just found an old mail from 30 May 2008: How do I split not only TABLE but cells? It was not possible then. \starttext \bTABLE[split=yes,option=stretch] \bTR \bTD \input tufte \input knuth Hello world ... \eTD \bTD \input tufte \eTD \bTD \input knuth \eTD \eTR \bTR \bTD Test \eTD \bTD Test \eTD \bTD Test \eTD \eTR \eTABLE \stoptext Best wishes, Steffen

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