- ntg-context - Mailing Lists

Problem using Neo Euler in slides
by a.kumar＠alumni.iitm.ac.in 19 Jan '25

19 Jan '25

Dear List, I am using the Debian ConTeXt with the following version: context 2024.04.01.20240428+dfsg-2 I am having some issues, particularly with the \sqrt symbol when using a presentation mode in ConTeXt. The following gist has the files in question: https://gist.github.com/kumanna/eb81deae66e34809b9074be1f3f6e9d0 I have the Fontin, Neo Euler and Delicious OTFs loaded properly with mtxrun. In my slide, if the \sqrt is present, I get the following error: lua error: registered function call [254]: /usr/share/texmf/tex/context/base/mkxl/lpdf-lmt.lmt:1681: attempt to perform bitwise operation on a nil value (local 'options') stack traceback: /usr/share/texmf/tex/context/base/mkxl/lpdf-lmt.lmt:1681: in upvalue 'flushrule' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1659: in upvalue 'vlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1196: in upvalue 'hlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1198: in upvalue 'hlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1625: in upvalue 'vlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1196: in upvalue 'hlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1625: in upvalue 'vlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1196: in upvalue 'hlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1198: in upvalue 'hlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1198: in upvalue 'hlist_out' ... (skipping 6 levels) /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1198: in upvalue 'hlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1198: in upvalue 'hlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1625: in upvalue 'vlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1623: in upvalue 'vlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1196: in upvalue 'hlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1198: in upvalue 'hlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1198: in upvalue 'hlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1625: in upvalue 'vlist_out' /usr/share/texmf/tex/context/base/mkxl/driv-shp.lmt:1799: in upvalue 'converter' /usr/share/texmf/tex/context/base/mkxl/lpdf-lmt.lmt:3719: in upvalue 'convert' /usr/share/texmf/tex/context/base/mkxl/driv-ini.lmt:211: in function </usr/share/texmf/tex/context/base/mkxl/driv-ini.lmt:207> (...tail calls...) <empty file> mtx-context | fatal error: return code: 1 Please let me know if there is something I need to fix. Thanks. Kumar

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Problem with \frac
by Bruce Horrocks 19 Jan '25

19 Jan '25

What am I doing wrong here, please? \starttext \frac{1}{2} \stoptext gives tex error > tex error on line 2 in file ./tt.tex: Missing $ inserted <inserted text> $\mathatom <macro> \math_atom_by_parameter_indeed #1->\mathatom \s!class \mathcodechecked {#1} <macro> \math_frac ...meter #2\or \setupcurrentmathfraction [#2]\fi \edef \p_math_fraction_fences {\mathfractionparameter \c!fences }\dostarttagged \t!mfractionstack {\mathfractionparameter \c!mathmeaning }\math_atom_by_parameter \mathfractionparameter \bgroup \ifem ... <to be read again> { <line 3.2> \frac{ 1}{2} 1 \starttext 2 >> \frac{1}{2} 3 \stoptext I've inserted a begin-math/end-math symbol since I think you left one out. Proceed, with fingers crossed. mtx-context | fatal error: return code: 1 — Bruce Horrocks Hampshire, UK

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wiki update
by garulfo＠azules.eu 19 Jan '25

19 Jan '25

Hi all, for your information, many significant changes have been done on the wiki pages and their structure. Many pages are now nested by theme to make it easier for new ConTeXt users to navigate (by giving them a better overview of the material available on a given subject) and for wiki users to identify duplicates and old content. Of course, there are still “duplicates”, “aging content” and “unclear tutorials”, but the changes are significant and should be noted here. - Summary of changes - https://wiki.contextgarden.net/Talk:Main_Page#January_2025.2C_improving_wik… - Before / After illustrations - https://wiki.contextgarden.net/User:Garulfoo#January_2025_Wiki_before_.2F_a… Hoping that these improvements will compensate for the disruption to your habits and the inconveniences of recent weeks.

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New module to typeset Pandoc JSON files (as XML) in ConTeXt
by mf 17 Jan '25

17 Jan '25

Hello, I just uploaded a module for ConTeXt to typeset Pandoc JSON files (as XML) with ConTeXt. You can find it here: https://github.com/massifrg/t-pandocxml I made a script to create a t-pandocxml-YYYY-MM-DD.zip file (see the devhelpers directory). But I don't know how to install it, starting from the zip file. This is what I did: - cd [context_installation_dir]/tex/texmf-context - unzip .../t-pandocxml-YYYY-MM-DD.zip - rm LICENSE README.md VERSION - mtxrun --generate It works, but I'm sure there's a better way to install it. Massi

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Fw: \usecitation with 2 \placebtxrendering call will produce error report
by wangzhongtian 17 Jan '25

17 Jan '25

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epub-mkiv-demo.tex and Calibre 's epub reader
by garulfo＠azules.eu 16 Jan '25

16 Jan '25

Hi all, With Debian, I created a /bin/mudraw $ cat /bin/mudraw #!/bin/sh mutool draw "$@" trying to compile the demo file: context epub-mkiv-demo.tex mtxrun --script epub --images epub-mkiv-demo.tex mtxrun --script epub --make epub-mkiv-demo the demo stopped just after by trying to open the file with Calibre 's epub reader : calibre, version 7.24.0 ERREUR : Error in message handler: Erreur inconnue Traceback (most recent call last): at IframeClient.handle_message (userscript:viewer.js:17726:21) at IframeBoss.display (userscript:viewer.js:29200:13) at unserialize_html (userscript:viewer.js:18491:33) TypeError: Cannot read properties of null (reading 'tag_map') Any clue ?

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defining macros
by Henning Hraban Ramm 14 Jan '25

14 Jan '25

Hi, I just recognized that I’m not sure how to define a macro with optional and mandatory arguments the best way. E.g. (oldfashioned) \def\doMyMacro[#1]#2% {Do something ... \iffirstargument #1\fi #2} \def\MyMacro% {\dosingleargument\doMyMacro} Is this still the way to do it? Does it also work with \define? I have more questions like that: From Wolfgang’s presentation (article in progress…) I know all the cool stuff for modules (namespaces, setup helpers…), I also know the Lua way of interface.implement, but how to combine those? When should I use brackets or other characters in a definition, when not? Which docs should I read? Hraban

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Weird date output
by autumnus 14 Jan '25

14 Jan '25

hi, When I try to output the Chinese date with the command below, I find that it doesn't process the month at all. No matter how I try any of the "month,month:cn-a,month:cn-c,month:cn-d" conversions Unless I pre-set the labeltext for the Chinese month. %%%% \definedfont[name:adobesongstdlight] \currentdate[year:cn-d,年,month:cn-a,day:cn,号] %output : 二〇二五年January 十一号 \setuplabeltext [en][january={一月},] \currentdate[year:cn-d,年,month:cn-a,day:cn,号] %output : 二〇二五年一月十一号 %%%% If so, then when should I use those conversion method ? (At present, the output of "month:cn-d" is only suitable for the year, not the month and day. Its naming is somewhat misleading) What's more, there seems to be a strange space here between the month and the day. It should output 二〇二五年一月十一号 instead 二〇二五年一月十一号 autumnus

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OT: Tetris & Doom ported to PDF
by Henning Hraban Ramm 13 Jan '25

13 Jan '25

Apparently, the PDF engines of Firefox and Chrome support enough JavaScript to play Doom (in 6 grayscales): https://github.com/ading2210/doompdf or (much easier) Tetris: https://github.com/ThomasRinsma/pdftris That might mean we could check support for presentations fetures (OCGs?) again. “C code can be compiled to run within a PDF using and old version of Emscripten that targets asm.js instead of WebAssembly.” Hraban

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Spacing between Chapter title and first paragraph sometimes changes
by Keith McKay 13 Jan '25

13 Jan '25

H, I'm typesetting a memoir for a friend and I've come across a strange problem which I'm trying to solve. The memoir will be A5 format and has quite a few chapters which are less than a page long. I noticed that for some chapters the distance between the the chapter head and the first paragraph were not aligned in double page view. You can see this quite clearly in the attached screenshot. I was given a docx file consisting of 80 chapters and and appendices which I converted to individual xhtml files. The resulting xhtml files are very simple and the format is as follows: <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <link rel="stylesheet" href="../styles/style001.css" type="text/css" /> <title></title> </head> <body> <h2 id="heading_id_no>Chapter Number</h2> <p>Some text</p> <p>Some text</p> <p>And so on...</p> </body> </html> In some of the xhtml files I have added <div>...</div> for layout purposes and also inserted images. I use xmlsetups to typeset the tags as follows: \startxmlsetups xml:html \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:body \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:h2 \page \chapter{\xmlflush{#1}} \stopxmlsetups \startxmlsetups xml:p \xmlflush{#1}\par \stopxmlsetups along with a few others for divs, images and some other tags. For the chapters setup I use: \setuphead[chapter][page=no, number=no, header=empty, align=middle, after={\blank[3cm]}] I would expect that using this \setuphead, there should be a gap of three cm between the head text and the first paragraph, however in a few chapters this does not happen and an extra blank line is either added or subtracted to the gap. I'm obviously missing something simple and struggling to find a solution to correct this problem so I would be grateful for any hints on how to go about it. Best Wishes Keith McKay

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