- ntg-context - NTG Mailing Lists

regular online meet-up
by Henning Hraban Ramm 08 Mar '23

08 Mar '23

You’re invited to join on Wednesday, March 8th, 15:00 CET (UTC+1) at https://lecture.senfcall.de/hen-rbr-rku-oke (same, but shorter: https://v34h.de/ctxmtg) ConTeXt users of all levels are welcome! Next meeting will be on April 12th. (Same blurb as every time:) [Howto] * No special software installation required; most modern browsers should work (WebRTC required). * Open the above URL, accept the privacy statement, * enter your name, * click "join" (or "start" if you’re the first), * click "with microphone", allow your browser to access it, check the audio. * Your microphone is muted if you join. Activate microphone and/or camera with the buttons at the bottom. * Minimize the default presentation with the "screen" button, bottom right. * If you’d like to share your screen or upload a file, you can make yourself the presenter: Click on your user name, change the setting, then you’ll see the "screen sharing" button beside the camera button; also there’s now "manage presentations" behind the "plus" button. Beware there is only one presenter at a time, so don’t kill someone else’s presentation. [Technical hints] * Sound is usually better if you use a headset (less noise for everyone). * Connection problems are mostly due to low bandwidth or high latency on your side, e.g. with mobile connections. * If audio/video doesn’t work for you, you can still use the text chat. * Screen sharing needs a lot of bandwidth. * BigBlueButton documentation applies: https://bigbluebutton.org/teachers/tutorials/ [Netiquette] * Please use a name that we recognize from here. Some feel uncomfortable with anonymous lurkers. * Mute your microphone while you’re not talking. * It’s nice to show your face at least when you join. * If there are connection problems, stop camera sharing. * The room is set to “everyone’s a moderator“, I trust you... See you, Hraban

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Re: [NTG-context] /CropBox overflows /MediaBox
by Pablo Rodriguez 07 Mar '23

07 Mar '23

On 3/2/23 00:20, Hans Hagen wrote: > On 2/28/2023 6:23 PM, Pablo Rodriguez via ntg-context wrote: >> [...] > I only see one size. Anyway, attached a fix for the different rounding. Sorry, Hans, I copied the wrong sample (value for "width" in "\setupinteractionscreen" should read "fit" instead of "max"): \nopdfcompression \setupinteractionscreen [width=fit] \setuplayout [standard] [backspace=.7\textwidth, cutspace=\cutspace, width=middle] \starttext \startmakeup[page] \null \stopmakeup \startmakeup[standard] \null \stopmakeup \stoptext Here are the boxes (using current latest from today [2023.03.06 14:48]): 3 0 obj [ 0 0 595.275590072 841.88975789 ] endobj 7 0 obj [ 0 0 968.199847496 841.88975789 ] endobj Page 1 (object 4) uses object 3 as /CropBox, /MediaBox and /TrimBox. Page 2 (object 7) uses object 3 as /MediaBox and object 7 as /CropBox and /TrimBox (I have just discovered it). I think it is better to avoid having a page with a /CropBox larger than its /MediaBox. But I’m afraid that it is wrong to have a /TrimBox larger than the /MediaBox for the same page. I hope it is clear now. Sorry for the mistake in copying the wrong sample. Many thanks for your help, Pablo

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cannot compile with MkIV
by Pablo Rodriguez 07 Mar '23

07 Mar '23

Dear list, I have the following sample: \starttext \null \stoptext Trying to compile it with "context --luatex", I get the error message copied bellow. Could anyone confirm that the format file for MkIV (LuaTeX) cannot be generated with current latest (from today [2023.03.06 14:48])? Many thanks for your help, Pablo lua error > lua error on line 21 in file ~/context/tex/texmf-context/tex/context/base/mkiv/back-pdf.mkiv: ...ext/tex/texmf-context/tex/context/base/mkiv/lpdf-nod.lua:72: creating a whatsit requires the subtype number as a second argument stack traceback: [C]: in local 'new_node' ...ext/tex/texmf-context/tex/context/base/mkiv/lpdf-nod.lua:72: in local 'code' ...ext/tex/texmf-context/tex/context/base/mkiv/util-lua.lua:96: in field 'loadedluacode' ...ext/tex/texmf-context/tex/context/base/mkiv/luat-env.lua:108: in field 'luafilechunk' ...ext/tex/texmf-context/tex/context/base/mkiv/luat-cod.lua:73: in function 'lua.registercode' [ctxlua]:1: in main chunk 11 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for 12 %C details. 13 14 %D The less there is here, the better. After a decade it is time to remove the \type 15 %D {\pdf*} ones completely. For the moment I keep them commented but even that will 16 %D go away. 17 18 \writestatus{loading}{ConTeXt Backend Macros / PDF} 19 20 \registerctxluafile{lpdf-ini}{optimize} 21 >> \registerctxluafile{lpdf-nod}{} 22 \registerctxluafile{lpdf-eng}{optimize} 23 \registerctxluafile{lpdf-col}{} 24 \registerctxluafile{lpdf-vfc}{} 25 \registerctxluafile{lpdf-xmp}{} 26 \registerctxluafile{lpdf-ano}{} 27 \registerctxluafile{lpdf-res}{} 28 \registerctxluafile{lpdf-mis}{} 29 \registerctxluafile{lpdf-ren}{} 30 \registerctxluafile{lpdf-grp}{} 31 \registerctxluafile{lpdf-wid}{} resolvers | formats | resolvers | formats | binary path : ~/context/tex/texmf-linux-64/bin resolvers | formats | format path : ~/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex resolvers | formats | luatex engine : luatex resolvers | formats | lua startup file : ~/context/tex/texmf-context/tex/context/base/mkiv/luat-cod.lua resolvers | formats | context file : ~/context/tex/texmf-context/tex/context/base/mkiv/cont-en.mkiv resolvers | formats | run time : 1.497 seconds resolvers | formats | return value : error resolvers | formats | mtx-context | error, no format found with name: cont-en, aborting

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Cron <context@zapf> /var/www/aanhet.net/context/bin/cron/context-mirror
by root＠ntg.nl 07 Mar '23

07 Mar '23

receiving incremental file list ./ ctan.lsr document-2.htm download-1.htm download-2.htm logo-ade.png logo-cts.png logo-pod.png rss.xml show-fil.pdf context/latest/ context/latest/cont-mpd.zip context/latest/cont-ppc.zip context/latest/cont-sci.zip context/latest/cont-tmf.zip context/latest/cont-tst.7z context/latest/cont-tst.tar.xz context/latest/cont-tst.zip sent 101,711 bytes received 20,296,534 bytes 3,708,771.82 bytes/sec total size is 449,532,338 speedup is 22.04 Running archiver: New dir: /var/www/aanhet.net/context//htdocs/archives/context-2023-03-07.00 122331157 /var/www/aanhet.net/context//htdocs/archives/context-2023-03-07.00/latest 126745317 /var/www/aanhet.net/context//htdocs/archives/context-2023-03-07.00/current 249080570 /var/www/aanhet.net/context//htdocs/archives/context-2023-03-07.00 249080570 total

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Cron <context@zapf> /var/www/aanhet.net/context/bin/cron/context-mirror
by root＠ntg.nl 06 Mar '23

06 Mar '23

receiving incremental file list ./ ctan.lsr document-2.htm download-1.htm download-2.htm logo-ade.png logo-cts.png logo-pod.png rss.xml show-fil.pdf context/latest/ context/latest/cont-mpd.zip context/latest/cont-ppc.zip context/latest/cont-sci.zip context/latest/cont-tmf.zip context/latest/cont-tst.7z context/latest/cont-tst.tar.xz context/latest/cont-tst.zip sent 101,644 bytes received 21,301,419 bytes 3,292,778.92 bytes/sec total size is 449,530,062 speedup is 21.00 Running archiver: New dir: /var/www/aanhet.net/context//htdocs/archives/context-2023-03-06.16 122330177 /var/www/aanhet.net/context//htdocs/archives/context-2023-03-06.16/latest 126745317 /var/www/aanhet.net/context//htdocs/archives/context-2023-03-06.16/current 249079590 /var/www/aanhet.net/context//htdocs/archives/context-2023-03-06.16 249079590 total

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Description together with itemize, luametatex
by Gerion Entrup 06 Mar '23

06 Mar '23

Hi, I'm trying to use a description environment in conjunction with an itemize with the latest luametatex. Is this supposed to work? Here is an MWE: ``` \definedescription[desc][headstyle=bold] \starttext Foo \desc{Some title} Some text \startitemize \item Some item \stopitemize \stoptext ``` This currently fails with: ``` resolvers | formats | executing runner 'run luametatex format': /home/gerion/context/tex/texmf-linux-64/bin/luametatex --jobname="./test.tex" --fmt=/home/gerion/context/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luametatex/cont-en.fmt --lua=/home/gerion/context/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luametatex/cont-en.lui --c:currentrun=1 --c:fulljobname="./test.tex" --c:input="./test.tex" --c:kindofrun=1 --c:maxnofruns=9 --c:texmfbinpath="/home/gerion/context/tex/texmf-linux-64/bin" system > system > ConTeXt ver: 2023.02.23 21:26 LMTX fmt: 2023.3.4 int: english/english system > system > 'cont-new.mkxl' loaded open source > level 1, order 1, name '/home/gerion/context/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 '/home/gerion/context/tex/texmf-context/tex/context/base/mkxl/cont-new.mkxl' system > files > jobname './test', input './test.tex', result './test' fonts > latin modern fonts are not preloaded languages > language 'en' is active open source > level 1, order 2, name './test.tex' fonts > preloading latin modern fonts (second stage) fonts > 'fallback modern rm 12pt' is loaded lua error > lua error on line 8 in file ./test.tex: registered function call [809]: ...ext/tex/texmf-context/tex/context/base/mkiv/strc-num.lua:448: attempt to index a nil value (local 'd') stack traceback: ...ext/tex/texmf-context/tex/context/base/mkiv/strc-num.lua:448: in function <...ext/tex/texmf-context/tex/context/base/mkiv/strc-num.lua:442> (...tail calls...) 1 \definedescription[desc][headstyle=bold] 2 3 \starttext 4 Foo 5 6 \desc{Some title} Some text 7 \startitemize 8 >> \item Some item 9 \stopitemize 10 11 \stoptext 12 mtx-context | fatal error: return code: 1 ``` Best, Gerion

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Visual highlighted text with title, mix of enumeration and framedtext
by Gerion Entrup 06 Mar '23

06 Mar '23

Hi, I want to typeset a "Good to know" section that is visually highlighted and can spawn across multiple pages. In LaTeX this would be possible with the mdframed package. See the attached screenshot for an example how it might look like (it is copied out of page 4: Definition: Inhomogeneous linear of the mdframed documentation: http://mirrors.ctan.org/macros/latex/contrib/mdframed/mdframed.pdf) I have searched in the wiki and found \defineenumeration: This is near of that what I need. However I explicitly does not need an enumeration (so no number or counter). Also I am not sure if I can set a background and so on. The other possibility is \defineframedtext. For example this goes much in the direction that I want: \definecolor[gbackground][s=0.98] \defineframedtext[gtk][frame=on, offset=5pt, background=color, width=0.95\textwidth, backgroundcolor=gbackground] However, there does not seem a possibility to define a title and it seems to not work on multiple pages. Is there a mix of an enumeration and framedtext that can produce something like in the attached picture? Best, Gerion

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Problem with \setuplayout parameters being ignored
by Keith McKay 05 Mar '23

05 Mar '23

Hi I'm having a strange problem with the \setuplayout command with the parameters being ignored. In the code below the only parameter which does get setup is the backspace parameter, the header, footer, width, and margin parameters are setup differently according to the log. I'm probably missing something fairly obvious so hints would be helpful. The document I'm trying to setup will probably be a maximum of 50 pages and I would like to reduce the space at the top and bottom of the page. Best Wishes Keith McKay %%%%%%%%% Code so far %%%%%%%%%%% \setuppapersize[A4] \setuplayout[ backspace = 2.5cm, margin = 0.5cm, width = 16cm, header = 1cm, footer = 1cm, ] \setupbackgrounds[state=repeat] \defineoverlay[apage][ {\startMPcode StartPage; definecolor[ name = "MyColor1", r = uniformdeviate(1), g = uniformdeviate(1), b = uniformdeviate(1) ] ; definecolor[ name = "MyColor2", r = uniformdeviate(1), g = uniformdeviate(1), b = uniformdeviate(1) ] ; draw lmt_shade [ path = Page, direction = "down", alternative = "linear", colors = { "MyColor2", "MyColor1" }, ] ; draw lmt_shade [ path = Field[Text][Text], direction = "down", alternative = "linear", colors = { "MyColor1", "MyColor2" }, ] ; StopPage; \stopMPcode} ] \showframe \setupbackgrounds[page][background=apage] \setupbackgrounds[footer][text] [background=color, backgroundcolor=blue] \setupbackgrounds[header][text] [background=color, backgroundcolor=red] \setuppagenumbering[state=start,alternative=doublesided,location=footer] \showlayout \starttext \showsetups \dorecurse{10}{ Page \recurselevel \page } \stoptext

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[m-database] How to properly add module arguments?
by Paul Mazaitis 04 Mar '23

04 Mar '23

Dear list, ## The Incredibly Short Version I am trying to extend m-database, and I want to add a flag to control behavior. I can get it to work, but I am having trouble understanding how to do it properly. ## The Short Version I have a project where I wish to incorporate many CSV files as Natural Tables. I want to keep the headers in the CSV files so they're useful in other contexts. The `m-database` module doesn't have a feature to suppress the header row, from what I can see. (I know `handlecsv` can do this, but I'm having troubles with that; if the `m-database` line of inquiry doesn't work out, I'll go back it, but I figure I'll focus on this solution for now.) Looking at the module sources, I can implement the functionality I need in the Lua part of the module, but: I seem to only be able to bodge in additional arguments for the commands in the module. On first try, I got the error: `tex error > tex error on line 30 in file /Users/pmazaitis/Opt/context/tex/texmf-context/tex/context/modules/mkiv/m-databaseplus.mkiv: ! Undefined control sequence` And then: `The control sequence at the end of the top line of your error message was never \def'ed.` Looking at the docs points me to a solution using `\def`, but it's not clear to me how that's working in the case of the database module (the database module seems to be initializing these values someplace else?). If I \def the settings variable in m-database.mkiv, I can get it to work, but I don't think that's the correct way to go about this. Question: how do I properly define new module arguments for the database module? ## The Long Version, With MWE ### Files Associated With the MWE Apologies for all of the file inclusions, but I want to be complete. Here's the .csv file I'm using for the MWE: --- begin database-mwe.csv --- Ref. No.,Part No.,Description,Remarks ,RD14C82E000J,Carbon 000𝝮 ±5% 1/4W, --- end database-mwe.csv --- Some notes on database-mwe.csv: I'd like to keep the header row in place to make this file useful for other tools. These are lists of electronic parts, so I'd like to include uppercase omega, lower case mu, and percent sign characters in the CSV file. Here's the .tex file I'm using for the MWE: --- begin database-mwe.tex --- \usemodule[database] \setupdatabase[quotechar={"},separator={,}] \defineseparatedlist [PartsTable] [separator=comma,left=\bTD,right=\eTD,first=\bTR,last=\eTR,before={ \bTABLE[split=repeat,option=stretch] \bTABLEhead \bTR \bTH Ref. No. \eTH \bTH Part No. \eTH \bTH Description \eTH \bTH Remarks \eTH \eTR \eTABLEhead \bTABLEbody }, after={ \eTABLEbody \eTABLE }] \starttext test \startasciimode \processdatabasefile[PartsTable][parts_list-test.csv] \stopasciimode \stoptext --- end database-mwe.tex --- Some notes on database-mwe.tex: This actually works pretty well with the distributed m-database module! Some of these lists are quite long, so I want to use a TABLEhead to replicate the headings at the top of a new page. I don't think there's a way to automate this with `m-database`, so I'm okay with hard-coding the headers. This does mean I get a double header row at the top of the table. I want to suppress the header row; I'd like to implement this behavior in the module behind a switch. (I'm using the `asciimode` environment to dodge problems with unescaped `%` characters and Greek letters. I tried adding the startasciimode/stopasciimode commands to various keys in the \defineseparatedlist command, but I didn't get anywhere with it - I got errors. A problem for another time...) I think I've got a good handle on how to do this in Lua, but I'm struggling with what to add to the switch appropriately. In attempting to add a switch, I tried the following. Based off of https://wiki.contextgarden.net/Modules#Modules_writing_guidelines, I added a stanza to the appropriate interface file: --- begin stanza added to i-database.xml --- <cd:parameter name="skipheader"> <cd:constant type="yes"/> <cd:constant type="no" default="yes"/> </cd:parameter> --- end stanza added to i-database.xml --- I modeled that after the stanza for the argument `strip`. I think that's the only thing I need to do in the interface file. Changing the i-database.xml file does not break the build. However, as soon as I add the skipheader argument to the m-database.mkiv file: --- begin definition in m-database.mkiv --- \setupdatabase [\c!separator={,}, \c!quotechar=, \c!commentchar=, \c!strip=\v!no, \c!skipheader=\v!no, % <- Added, following the pattern with strip \c!before=, \c!after=, \c!first=, \c!last=, \c!left=, \c!right=] --- end definition in m-database.mkiv --- ...the build fails (with the error from the Short Version section). If I then add the following \def to m-database.mkiv before the \setupdatabase command: \def\c!skipheader {skipheader} ...the build succeeds! I can now pass that settings value to m-database.lua and use it to modify the processing logic. My question: how do I \emph{properly} define new module arguments for the database module? Or: is adding extra \def commands the way to do it? Many, many thanks! -Paul

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How to print the section number of a reference in ConTeXt?
by Joel 04 Mar '23

04 Mar '23

I've set a \pagereference in a chapter, and want to print its chapter title and page number, ex. "You can find more information in "Fish" on p. 1" (where "Fish" is the title of the chapter or section). I've tried looking all through the wiki, thinking this was a basic feature, but couldn't get anything to work. I even tried my own custom macros, see below, but strangely, it won't give me the correct title, it tells me the title of the current chapter, instead of the title in which the reference was placed: \define[1]\dropref{% \textreference[#1]{\expanded{\currentstructuretitle}} } \starttext \startchapter[title=Fish] \dropref{hello} \input knuth \stopchapter \startchapter[title=Whales] You can more information at \at{page}[hello] in \at{chapter}[hello] or \about[hello]. \stopchapter \stoptext Strangely both at commands give the correct information, but \about doesn't. How do I place a reference somewhere in a text, then later tell which chapter title and page number that reference appeared in? --Joel

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