February 2025 - ntg-context - NTG Mailing Lists

Cron <context@cgl> /var/www/aanhet.net/context/bin/cron/context-mirror
by root＠ntg.nl 24 Feb '25

24 Feb '25

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-lmt.zip 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 general/manuals/ general/manuals/lowlevel.pdf sent 191,054 bytes received 44,612,431 bytes 4,716,156.32 bytes/sec total size is 627,951,425 speedup is 14.02 Running archiver: New dir: /var/www/aanhet.net/context//htdocs/archives/context-2025-02-24.15 278813005 /var/www/aanhet.net/context//htdocs/archives/context-2025-02-24.15/latest 126745317 /var/www/aanhet.net/context//htdocs/archives/context-2025-02-24.15/current 405562418 /var/www/aanhet.net/context//htdocs/archives/context-2025-02-24.15 405562418 total

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context / auctex problem?
by hanneder＠staff.uni-marburg.de 24 Feb '25

24 Feb '25

Apologies for this question, which is probably an auctex problem. I have a new install of everything (LinuX, emacs, texlive) and the latest (?) context (ConTeXt ver: 2024.05.27 18:16 LMTX) installed in a separate directory. Running context from the commandline works fine, so I guess I did not misspell the path, but when running "Context All" from emacs, the error is: ----- Running `ConTeXt' on `context-test' with ``context --once --nonstop context-test.tex'' /bin/sh: Zeile 1: context: Kommando nicht gefunden. TeX Output exited abnormally with code 127 at Mon Jun 17 14:03:03 ------ I don't think the .emacs is at fault, it worked before the reinstall and contains, for instance: (setq-default TeX-master t) (setq TeX-parse-self t) (setq TeX-auto-save t) (setq ConTeXt-Mark-version "IV") Any ideas welcome, Jürgen --- Prof. Dr. Juergen Hanneder Philipps-Universitaet Marburg FG Indologie u. Tibetologie Deutschhausstr.12 35032 Marburg Germany Tel. 0049-6421-28-24930 hanneder(a)staff.uni-marburg.de

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Mathdigits fallback does not work
by Mohammad Hossein Bateni 23 Feb '25

23 Feb '25

Hello, I use fallbacks to substitute "Arabic" digits in math to Indic ones. The mechanism doesn't work in the newest context. I tried it with mkxl version in 2025.02.04 17:52 in a clean install. The email is a bit long, but please bear with me, so I can learn a few other things along the way. Compiling type-imp-mathdigits.mkiv (provided in the distribution) does not change the digits to Indic form. This is the part after the typescript definition: \usetypescript [mathdigits] [xits-dejavu] [extendedarabicindic] > \setupbodyfont[dejavu] > \starttext > $3+2=5 \quad \bf 3+2=5$ > \stoptext The logs contain the following, which shows dejavusansmono is not loaded. mkiv lua stats > loaded fonts: 3 files: texgyredejavu-math.otf, > dejavuserif-bold.ttf, dejavuserif.ttf IIUC one issue is that setupbodyfont kind of undoes the usetypescript command because dejavu typescripts already define MathRoman. Could you also explain the difference between setupbodyfont and switchtobodyfont? Do I need the latter? If I use the following instead, the Arabic digits do turn into Indic ones. \usetypescript [mathdigits] [xits-dejavu] [extendedarabicindic] > \setupbodyfont[dejavu] > \definefontsynonym[MathRoman][MathRomanBold][fallbacks=mathdigits] > \switchtobodyfont[sans] With some caveats: 1) This still ignores the MathRoman definition in the above typescript (if I change the above to use euler, e.g., I see no change). 2) This only changes MathRoman and not MathRomanBold. So if I have something like {\bf $2+3$}, then the fallback does not kick in. 3) I can't use \definefontsynonym[MathRoman][MathRoman][fallbacks=mathdigits] because it creates a loop. Is there a way to "deep copy" font definitions (rather than the "copy by reference") we have here? That way, I could run the fallback for both MathRoman and MathRomanBold. Speaking of which, what's the difference between \definefont and \definefontsynonym? What happens when either of these appear within a typescript definition? Is the only difference, that within typescripts we have a separate namespace to which the Sans, Serif, MathRoman, etc. are attached? Can I access the MathRoman defined within typescript MyTypescript as "MyTypescriptMathRoman" or something like that? What about if I define BaseMath (a non-standard name, other than Sans, SansBold, MathRoman, etc.)? Are these also attached to that namespace? What is typescriptcollection BTW? Is it only cosmetic? Or can we pull in all definitions from a collection? Does it have to be the same as the file name? What's the difference between MathRoman and MathRomanBold? I thought when we would automatically get the Bold, Italic, BoldItalic variants when we define something like Sans. Or do we need to pull in some setups for that? For math, it seems that MathRoman has all the bold glyphs inside (at the digitsbold offset). Does it also have the bold version of other symbols? Then, what's the use of MathRomanBold? In the math typescripts, I see the feature "math\mathsizesuffix"? Is it for normal, script, scriptscript size? Who sets this macro? Are the math typescripts loaded multiple times with different \mathsizesuffix values? At what time? Back to the original question, if I switch usetypescript and setupbodyfont (see below), I see the math font changes taking effect (e.g., by picking up euler-math.otf instead of xits-math.otf). However, the fallback still doesn't work. \setupbodyfont[dejavu] > \usetypescript [mathdigits] [xits-dejavu] [extendedarabicindic] > %\definefontsynonym[MathRoman][MathRomanBold][fallbacks=mathdigits] > \switchtobodyfont[sans,20pt] I need to uncomment the third line above to get the fallbacks to work. I feel that the digitsnormal in MathRomanBold (used in the fallback) is slightly bolder than the normal one, but my eyes may be failing me :) Now it gets more mysterious. See this code snippet: % no change from mathdigits file > \starttypescript [mathdigits] [dejavu] [arabicindic,extendedarabicindic] > \resetfontfallback [mathdigits] > \definefontfallback [mathdigits] [dejavusansmono] > [digits\typescriptthree] [check=yes,force=yes,offset=digitsnormal] > \definefontfallback [mathdigits] [dejavusansmonobold] > [digits\typescriptthree] [check=yes,force=yes,offset=digitsbold] > \stoptypescript \starttypescript [mathdigits] [xits-dejavu] > [arabicindic,extendedarabicindic] > \usetypescript [mathdigits] [dejavu] [\typescriptthree] > \definefontsynonym[MathRoman] > [file:xits-math.otf][features=math\mathsizesuffix,goodies=xits-math,fallbacks=mathdigits] > % copied from comments of the same file > \definefontsynonym[MathRomanDigitsXitsDejavu] > [file:xits-math.otf][features=math\mathsizesuffix,goodies=xits-math,fallbacks=mathdigits] > \stoptypescript \setupbodyfont[dejavu] > \usetypescript [mathdigits] [xits-dejavu] [extendedarabicindic] > % copied essentially from comments of the same file > \definefontsynonym [MathRoman] [MathRomanDigitsXitsDejavu] > \switchtobodyfont[sans,20pt] \starttext > $3+2=5 \quad \bf 3+2=5$ math with fallback\\ > {\bf$3+2=5 \quad \bf 3+2=5$ bold math}\\ > {۳ + ۲ = ۵ \bf ۳ + ۲ = ۵ text Indic digits}\\ > {3 + 2 = 5 \bf 3 + 2 = 5 text Arabic diigts}\\ > %$$\sum_{i=1}^{8} x^2 = \pi\alpha + e^{-\beta}$$ > \stoptext If the last line is uncommented, I ran into the following error. Sorry, but I can't typeset math unless various parameters have been set. This is normally done by loading special math fonts into the math family slots. Your font set is lacking at least the parameter mentioned earlier. When it's commented, the fallbacks still don't happen, even if I rewrite the last definition as \definefontsynonym [MathRoman] [MathRomanDigitsXitsDejavu][fallbacks=mathdigits]. In some other tests (not with math), I noticed that in fallback definition, I also need to set the target key to be the same as the second parameter of the definition; something like: \definefontfallback [mathdigits] [dejavusansmono] [digitsarabicindic] > [check=yes,force=yes,offset=digitsnormal,target=digitsarabicindic] But I don't have a MWE for it right now. Thanks a lot for your help, Mohammad

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bidi gone in serried enumeration
by Mohammad Hossein Bateni 23 Feb '25

23 Feb '25

Hi, In the example below, when the "text" is non-English and we want a titled serried enumeration, bidi stops working in rendering of title. This works fine when I use other alternatives (top, left, etc.). Setting headalign=r2l or using \setupalign[r2l] has no effect. Best, Mohammad \setupdirections[bidi=global,method=unicode] \definefontfeature[default][arabic] \setupbodyfont[dejavu,sans] \defineenumeration[Theorem] \setupenumeration[Theorem][alternative=serried,title=yes,text=قضیه] \starttext \startTheorem[title=عنوان] Test \stopTheorem \stoptext

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Bug (?) in \definetabletemplate
by Christian Prim 22 Feb '25

22 Feb '25

Following example (taken from the wiki) produces an error with lmtx: \definetabletemplate[booktabs][o0|l|l|ro0|] \starttable[booktabs] \NC first column \NC second column \NC third column \NC \AR \stoptable Following example works: \starttable[o0|l|l|ro0|] %same as above, but without the use of the defined template \NC first column \NC second column \NC third column \NC \AR \stoptable I know that this table-environment is deprecated. But it is best suited for my project. I love the use of the template with this environment. Thanks for looking into it. Christian

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compile > unknown scanner 'dimenension'
by autumnus 22 Feb '25

22 Feb '25

hi, version : 2025.02.19 14:35 os : macos issue : tokens > compile > unknown scanner 'dimenension' It seems that the latest version will have a trivial issue with the terminal at compile time. It prompts in the terminal, but it doesn't interrupt the compilation. I don't know if I'm the only one with this problem. %%% \starttext \contextversion \stoptext %%% autumnus

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Trouble with this formula
by Ursula Hermann 21 Feb '25

21 Feb '25

Dear List, I have a trouble with this formula, because, I would like to have c + d also in the matrix, but it is not working. \starttext \startformula \startmathmatrix[fences=doublebar] \pmatrix { a + b\NR} { c + d \NR} \stopmathmatrix \stopformula \stoptext And another question too: I would like to need the command \parallel, instead of the fences, how can I make them big? Many thanks Uschi

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\pi not defined in latest MkIV
by Max Chernoff 20 Feb '25

20 Feb '25

Hi Hans, \pi doesn't seem to be defined in MkIV anymore. I'm using the latest from the standalone distribution, although the issue is also present in the TL25 pretest. Minimal example: % engine=luatex \startTEXpage \m{\pi} \stopTEXpage This was originally reported on the TeX Live list: https://tug.org/pipermail/tex-live/2025-February/051173.html Thanks, -- Max

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outlinetext, fractions, and square roots
by Florent Michel 20 Feb '25

20 Feb '25

Hi, When experimenting with outlinetext, I found it generally works well for both text and equations but seems to fail for fractions or square roots. The code below demonstrates the issue: ____________________________ \startMPpage draw outlinetext("$\frac{1}{\sqrt{2}}$"); \stopMPpage ____________________________ The ‘1’ and ‘2’ seem to be at the right positions, but the fraction bar and horizontal part of the radical are missing. Is there a different fonction I should use for getting the outlines of equations? Best regards, Florent

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MetaPost behaviour differs between standalone and \startreusableMPgraphic
by Pavneet Arora 20 Feb '25

20 Feb '25

I am in the process of converting a bunch of old TikZ notepaper templates to native ConTeXt and MetaPost. This is a part of a project to generate notebooks with documentation data and then blank pages appended to fill out full sheets, and then collated in a particular order for trimming and binding. As such I rely on Imposition. I am having issues with the various techniques of trying to duplicate a MP graphic across the pages using \[start|stop]MPcode \[start|stop]useMPgraphic, etc. But that is a discussion for another time. The method that I found to work was to use \[start|stop]reusableMPgraphic along with overlays I am still struggling with some MetaPost code that works fine in standalone but not when included in a ConTeXt document. With standalone MP, we get thicker lines on major increments as expected. When the same code is included in a ConTeXt document the thicker lines are only drawn up a certain number and then stop --- presumably the mod function returning a non-zero result when it really shouldn't? Here are the MWEs: >>> ConTeXt % Paper size and layout {{{2 \definepapersize | [PocketPage] | [width=2.75in,height=4.25in] \setuppapersize[PocketPage][letter,landscape] % }}}2 % MetaPost template for graph paper for pocket sized notebook (2.75" W x % 4.25in H). {{{2 \startreusableMPgraphic{graph} minor=2mm;| | % Minor lines, each every 2mm major=8mm;| | % Major lines, each every 4mm ┆ ┆ ┆ ┆ % major must be a multiple of minor z1 = (0,0);| % lower left corner % z2 = (2.75in,4.25in)-z1;| % upper right corner z2 = (2.75in,4.25in)-z1;|% upper right corner % Use the very thin pen pickup pencircle scaled 0.1; % Draw the vertical lines for i=minor step minor until (y2-y1): ┆ if (i mod major)=0: ┆ ┆ pickup pencircle scaled 0.3; ┆ fi; ┆ draw (z1 shifted (0,i))--((x2,y1) shifted (0,i)) withcolor .4white; ┆ if (i mod major)=0: ┆ ┆ pickup pencircle scaled 0.1; ┆ fi; endfor; % Draw the horizonal lines for i=minor step minor until (x2-x1): ┆ if (i mod major)=0: ┆ ┆ pickup pencircle scaled 0.3; ┆ fi; ┆ draw ( z1--(x1,y2) ) shifted (i,0) withcolor .4white; ┆ if (i mod major)=0: ┆ ┆ pickup pencircle scaled 0.1; ┆ fi; endfor; \stopreusableMPgraphic \defineoverlay[OLgraph][\useMPgraphic{graph}] \setupbackgrounds[page][background=OLgraph] % }}}2 \starttext hello. \stoptext <<< >>> Standalone MP beginfig(1) margin=0mm; % Margin of the graph paper minor=2mm; % Minor lines, each every 1mm major=8mm; % Major lines, each every 10mm % major must be a multiple of minor z1 = (margin,margin); % lower left corner z2 = (2.75in,4.25in)-z1; % upper right corner % % Use the thick pen first % pickup pencircle scaled 0.5; % % Draw the frame % draw z1--(x1,y2)--z2--(x2,y1)--cycle withcolor .5white; % Use the very thin pen pickup pencircle scaled 0.1; % Draw the vertical lines for i=minor step minor until (y2-y1-minor): if (i mod major)=0: pickup pencircle scaled 0.3; fi; draw (z1 shifted (0,i))--((x2,y1) shifted (0,i)) withcolor .4white; if (i mod major)=0: pickup pencircle scaled 0.1; fi; endfor; % Draw the horizonal lines for i=minor step minor until (x2-x1-minor): if (i mod major)=0: pickup pencircle scaled 0.3; fi; draw ( z1--(x1,y2) ) shifted (i,0) withcolor .4white; if (i mod major)=0: pickup pencircle scaled 0.1; fi; endfor; endfig; end; <<< advTHANKance -- Pavneet Arora m: +1 647-406-6843 Waroc Informatik e: pavneet_arora(a)waroc.com

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