- ntg-context - Mailing Lists

Units for volts and Ohms
by Aditya Mahajan 04 May '23

04 May '23

Hi, As I was testing circuitikz, I realized that the following don't work: \unit{1V} \unit{100 kΩ} In phys-dim.lmt, we need to change line 467: v = "volt", to V = "volt", and perhaps add (not sure if lua allows utf variable names) Ω = "ohm", Aditya

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define math function with \, inside
by Stefan Haller 01 May '23

01 May '23

Hi all, I wanted to define a custom math function (similar to log etc.) for argmax. However, I wanted to have a small space between "arg" and "max" and limits should work properly. I am using a up-to-date LMTX installation. Without the first constraint it's easy: > % old way: > \definemathcommand[argmax][limop]{\mfunction[argmax]} > % new way, discoverd by looking into math-def.mkxl > \definemathfunction[argmax] However, both methods do not work if I want to have "arg\,max" printed (error about \endcsname missing). With mkiv the first method works and can also be found in the wiki[1]. What's the current way to define such a custom math function? Thanks! Stefan [1]: https://wiki.contextgarden.net/Math/functions

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Linebreaking in Japanese in ConTeXt
by Gerben Wierda 01 May '23

01 May '23

I am currently testing with a Japanese translation of something I originally created in English using the ConTeXt engine (LMTX). I run into the fact that Japanese has no use for whitespace, so most of the time TeX has no idea where to break. Is there something I can tell ConTeXt to solve this for me or do I have to alk with the translator to put whitespace in the correct places (kind of breaks the automatic linebreaking of TeX, though)? Gerben Wierda (LinkedIn <https://www.linkedin.com/in/gerbenwierda>, Mastodon <https://newsie.social/@gctwnl>) R&A IT Strategy <https://ea.rna.nl/> (main site) Book: Chess and the Art of Enterprise Architecture <https://ea.rna.nl/the-book/> Book: Mastering ArchiMate <https://ea.rna.nl/the-book-edition-iii/>

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no recent message listed in the web interface
by Pablo Rodriguez 01 May '23

01 May '23

Dear list, I‘m afraid that https://mailman.ntg.nl/pipermail/ntg-context/2023/108157.html is the most recent message displayed for 2023 in the web interface (https://mailman.ntg.nl/pipermail/ntg-context/2023/date.html#108157) Although the list has been distributing messages to subscribers and I received them, I guess that the server software update might have something to do with this. Just for the record, I contacted Taco privately two weeks ago. No reply, but I understand that obviously he is busy with other things. Before sending him another message on the issue, I would like to ask whether anyone could confirm that recent messages (from this week) aren’nt being listed at https://mailman.ntg.nl/pipermail/ntg-context/2023/date.html. Many thanks for your help, Pablo

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cannot generate format file with current latest
by Pablo Rodriguez 01 May '23

01 May '23

Dear list, I have just updated to current latest (2023.04.27 17:04). I always delete cache with "mtxrun --generate" after an update. When I try to create the format file with "context --make --all", I get the following error message: lua error > lua error on line 645 in file context.mkxl: token call, execute: ...ext/base/mkxl/cldf-pos.lmt:18: attempt to index a nil value (global 'posit') stack traceback: ...ext/base/mkxl/cldf-pos.lmt:18: in local 'code' ...ext/base/mkiv/util-lua.lua:96: in field 'loadedluacode' ...ext/base/mkiv/luat-env.lua:108: in field 'luafilechunk' ...ext/base/mkxl/luat-cod.lmt:82: in function 'lua.registercode' [ctxlua]:1: in main chunk <empty file> A number should have been here; I inserted '0'. (If you can't figure out why I needed to see a number, look up 'weird error' in the index to The TeXbook.) Could anyone confirm the issue? Many thanks for your help, Pablo

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how access to \namedstructurevariable [next / previous]
by Garulfo 29 Apr '23

29 Apr '23

Hi all, I would like to use the title and the number of a section twice : - first with a specific layout (with makeup) - second, as usual, as part of the page flow. like in : http://www.pragma-ade.nl/general/manuals/cont-enp.pdf#page=23 looking at the source code (http://context.aanhet.net/svn/manuals/context/layo-00.tex) I understood that it was achieved with : \setuphead [\v!chapter] [\c!command=\PlaatsHoofdstuk, \c!page=\v!yes, \c!before=, \c!inbetween=\PlaatsHoofdstukIndex, %\c!incrementnumber=cont-\currentlanguage, \c!header=\v!nomarking, \c!textstyle=\bfd, \c!numberstyle=\bfe] and \def\PlaatsHoofdstukIndex % todo: lucida {%\startnotmode[*\v!frontpart] \page[\v!right] \setupbackgrounds[\v!paper][\c!background=\v!color] \startmakeup[\v!standard] \raggedleft \doifsomething{\currentheadnumber} {\hfill\expanded{\processMPheadnumber{\currentheadnumber}}} \vfill \hfill\expanded{\processMPheadtext{\currentheadtext}} \stopmakeup \setupbackgrounds[\v!paper][\c!background=] }%\stopnotmode} But currently, I can not reproduce it : - \currentheadtex return empty - \namedstructurevariable{section}{title} only report the update title once the title is actually typesetted Is there a way to access \namedstructurevariable with [next] or [previous] like options ? Here is a test trying to reproduce cont-enp.pdf example =================================================== \def\CheckA{{\mono\currentheadtext}} \def\CheckB{{\mono\namedstructurevariable{section}{title}}\page} \setuphead [section] [before={before : \CheckA - \CheckB}, inbetween={inbetween: \CheckA - \CheckB}, after={after: \CheckA - \CheckB}, beforesection={beforesection: \CheckA - \CheckB}, insidesection={insidesection: \CheckA - \CheckB}, aftersection={aftersection: \CheckA - \CheckB}, color=darkred, style=\tfc, ] \starttext \startsection[title=Section A] Text of section A. \stopsection \startsection[title=Section B] Text of section B. \stopsection \stoptext =================================================== Thanks for your help Garulfo

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Problem with exponent
by Fabrice Couvreur 28 Apr '23

28 Apr '23

Hi, I want to write x'² . Only, I get x²'. Thanks Fabrice \starttext \m{{x'}²+{y'}²} \stoptext

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LuaMetaTeX doesn't find files when symlinked
by Max Chernoff 28 Apr '23

28 Apr '23

Hi Hans, With the LuaMetaTeX-based ConTeXt wrapper, it's not generally possible to run ConTeXt from a symlinked binary in another directory. This shows up if someone makes symlinks in "/usr/bin" so that they can avoid adding anything to their $PATH. If you make run a symlink to the LuaMetaTeX-based ConTeXt wrapper, it looks for texmfcnf.lua relative to the symlink location, not the symlink target. With the old LuaTeX/kpse-based wrapper, the script would look for texmfcnf.lua relative to the symlink target. I know that my description above is terrible, so here's a demo: $ bin=$(mtxrun --expand-var TEXMFOS | head -1)/* $ cd $(mktemp -d) $ ln -s $bin/luatex $bin/luametatex $bin/context $bin/context.lua $bin/mtxrun $bin/mtxrun.lua . $ ./context --nofile $ ./context --luatex --nofile Running the above commands used to work with the old LuaTeX/kpse-based wrapper, but it doesn't work any more. I was able to ""fix"" this by adding the lines if os.selfpath then environment.ownbin = lfs.symlinktarget(os.selfpath .. io.fileseparator .. os.selfname) environment.ownpath = environment.ownbin:match("^.*" .. io.fileseparator) else environment.ownpath = kpse.new("luatex"):var_value("SELFAUTOLOC") environment.ownbin = environment.ownpath .. io.fileseparator .. (arg[-2] or arg[-1] or arg[0] or "luatex"):match("[^" .. io.fileseparator .. "]*$") end to mtxrun.lua, right below the line package.loaded["data-ini"] = package.loaded["data-ini"] or true but this is obviously not a very good fix. There are some threads with more details at: https://tug.org/pipermail/tex-live/2023-March/049028.html https://gitlab.com/islandoftex/images/texlive/-/issues/30 Those links only discuss TL, but I get the same issue if I make a symlink to the standalone ConTeXt files. Thanks, -- Max

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update
by Hans Hagen 28 Apr '23

28 Apr '23

Hi, I uploaded a new version with some new features discussed at the end of this mail. - A next version of luatex will break context (format making etc) but the change is unavoidable because of other macro package demands wrt security (context does that differently). The low level start up command has been adapted so unless you update indepdently thinsg should work ok. Of course this has no consequences for lmtx. - I've done a bit of callback cleanup (like getting rid of some mkiv luatex left-overs). It should have no effect on regular usage. - There again a few improvements wrt math (this time dealing with accents artifacts in some fonts). We check all the free math fonts for potential issues and then try to fix it (read: deal with it). It's a lot of work but we're getting there. - A few reported buglets have been fixed. - The biggest addition is however a new number model. In metapost one can now use 'posit' (positfun instance) as number mode which will use (currently 32 bit but at some point 64 bit) posit unums. It's also bit of a playground because 32 bit posits are not more accurate than 64 bit doubles. It anyhow exposed some potential issues that we'll look into. - There's also a (again currently 32 bit) posit library at the Lua end as playground. - However, 32 bit posits come in handy at the tex end because they pack better accuracy in 32 bits than floats and it makes it possible to have native floats, so we have: \newfloat (uses \floatdef, register like \dimendef is used in \newdimen) \newposit (uses \positdef, like \dimensiondef etc) \floatexpr (like \numexpr) \iffloat (like \ifnum) (also \ifabsfloat and i'll add the others too) Actually it adds an extra range of registers so it bumps memory usage a bit. I'm considering lowering the number of registers (currently 64K per category) because after all, if 64K is not enough then we can as well stick to 32K or 16K (for some even less). There's always Lua for unlimited storage of quantities. So, \newfloat\fooA \scratchdimen=123.456pt\relax [\type{dim:} \the\scratchdimen==123.456pt]\par \fooA =123.456\relax [\type{pos:} \the\fooA ==123.456] \par \fooA =\scratchdimen\relax [\type{pos:} \the\fooA ==123.456] \par \scratchdimen=\fooA\relax [\type{dim:} \the\scratchdimen==123.456pt]\par \scratchdimen\dimexpr\fooA+10pt\relax[\type{dim:} \the\scratchdimen==133.456pt]\par produces [dim: 123.456pt==123.456pt] [pos: 123.45600128173828==123.456] [pos: 123.45599365234375==123.456] [dim: 123.456pt==123.456pt] [dim: 133.456pt==133.456pt] As you can see dimens will get mapped onto floats not as integers (scaled points) but in pt units. Counts stay numbers. I need to handle glue too (not yet done). In the future I might use this for fractions but there might be some rough ends so for now it's experimental. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

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Cron <context@zapf> /var/www/aanhet.net/context/bin/cron/context-mirror
by root＠ntg.nl 27 Apr '23

27 Apr '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 100,908 bytes received 21,237,423 bytes 4,741,851.33 bytes/sec total size is 448,578,693 speedup is 21.02 Running archiver: New dir: /var/www/aanhet.net/context//htdocs/archives/context-2023-04-27.18 120744599 /var/www/aanhet.net/context//htdocs/archives/context-2023-04-27.18/latest 126745317 /var/www/aanhet.net/context//htdocs/archives/context-2023-04-27.18/current 247494012 /var/www/aanhet.net/context//htdocs/archives/context-2023-04-27.18 247494012 total

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