ntg-context January 2021

ntg-context@ntg.nl

57 participants
109 discussions

Text editor support via Digestif
by Augusto Stoffel 03 Jan '21

03 Jan '21

Hi all, I have worked a bit on ConTeXt support in the Digestif language server [1], and I think it's pretty usable by this point, so I would like to invite everyone to check it out. Feedback is welcome. Digestif plugs into any editor that support the Language Server Protocol, and provides the usual IDE features: completion (of commands, keyword arguments, references, citations), go to definition, find references, document outline, etc. Among the fancier features is fuzzy-matching, so you can, say, find a citation by typing parts of the title or author names (and get away with using meaningless BibTeX identifiers). The newest (git) version reads the ConTeXt interface files at runtime, so it should be pretty accurate, and also work with third-party packages. It would be cool to also have some integrated documentation, but it looks like ConTeXt (or TeX in general) doesn't have anything of help in this direction currently, right? Another nice thing is that Digestif is a Lua program, and can run on the LuaTeX interpreter with no extra dependencies. On the other hand, I didn't get the change to test it on Windows or editors other than Emacs, although both things should work with minimal adjustments. Let me know if you have any issues. Best, Augusto [1]: https://github.com/astoff/digestif

4 6

Ducks in ConTeXt
by Jairo A. del Rio 02 Jan '21

02 Jan '21

Hi everyone! I've recently ported TikZducks to ConTeXt and finally removed TIkZ along the way. So a new module was created. The module is called "metaducks" (lol) and it's essentially a \useMPgraphic{...} with a lot of options, most of them ported from TikZducks. For those not familiar with the package, it draws customized rubber ducks :) I want to include some more, so I'll gladly read any feedback, recommendations and suggestions. Eventually I want it to be a module on its own. The module is already in the ConTeXt Group: https://modules.contextgarden.net/cgi-bin/module.cgi/action=details/id=105 in case anyone wants to give it a try. Here's a minimal example: \usemodule[metaducks] \starttext \ducks[santa=true,mug=true] \stoptext I wish the best for you all. Happy holidays! Cordially, Jairo :)

3 5

xrightarrow specific size issue
by Johann Birnick 02 Jan '21

02 Jan '21

Hi there, \starttext $\xrightarrow[50pt]$ \stoptext doesn't work. But it should, right? In the manual \starttext $\xrightarrow[50]$ \stoptext is shown, but that doesn't work either. Best regards, Johann

4 6

fatal error: return code: 256
by Saša Janiška 02 Jan '21

02 Jan '21

Hello, tried to install lmtx (Debian Sid) from scratch, did: * wipe the texmf-cache directory * mtx-install | - run: mtxrun --generate * mtx-install | - run: context --make but still getting: [...] languages > language 'en' is active runtime error : input file './t.tex' is not found, quitting mtx-context | fatal error: return code: 256 Any hint? Sincerely, Gour -- Just try to learn the truth by approaching a spiritual master. Inquire from him submissively and render service unto him. The self-realized souls can impart knowledge unto you because they have seen the truth.

1 1

drop shadows with metapost/ metafun
by Garulfo 02 Jan '21

02 Jan '21

Which process would you advice to add « drop shadows » to any kind of metafun / metapost figures like: picture p; p := textext("MetaPost is fun!") shifted (10cm,10cm); My current understanding of the required steps : 1- fill p with the shadow color 2- write it to an external metapost file (with savebuffer ?) ready for png export (outputformat := "png »;) 3- with lua, os.execute, and imagemagick prepare the shadow - extent the png file with a transparent background, to have room for blurring - blur it 4- import this png in context / Metapost (externalfigure), and center it with p figure 5- shift it according to the desired shadows distance and angle 6- apply the initial bounding box of p to the shadow, draw the shadow, draw the p picture Actually, all this seems long and tedious, and contrasts with the already existing links between MetaPost / MetaFun and cairo + libpng. Thanks again for your help.

3 3

blank pages bug [pagecolumns]
by Johann Birnick 01 Jan '21

01 Jan '21

Hi there, I noticed a bug when using pagecolumns. If there is a title on the right column, a blank page gets added at the end of the document. For example \starttext \startpagecolumns[n=2] \title{lorem} \title{ipsum} \stoppagecolumns \stoptext gives an additional blank page. If you remove the second title (ipsum) then not. Best regards, Johann

1 0

About \includeMPgraphic and local presets
by Jairo A. del Rio 01 Jan '21

01 Jan '21

Hi, list! I've read elsewhere \MPrawvar allows a preset to be applied outside \start...\stopuseMPgraphic. \startuseMPgraphic{hi} draw fullcircle scaled \MPrawvar{hi}{u}; \stopuseMPgraphic \setupMPvariables[hi][u=1cm] \startMPcode \includeMPgraphic{hi} \stopMPcode However, \includeMPgraphic{...} only accepts one argument. I've come up with a somewhat ugly solution to pass a different value: \begingroup %\start \setupMPvariables[hi][u=2cm] \startMPcode \includeMPgraphic{hi} \stopMPcode \endgroup %\stop %Outside \MPrawvar{hi}{u} will be 1cm What should I do to keep redefinitions local or pass settings only for certain instances of \IncludeMPgraphic{...}? Is there a better solution? Thank you in advance. Best regards and best wishes for this New Year! Jairo

1 0

underbrace spacing
by Johann Birnick 01 Jan '21

01 Jan '21

Hi there, if I do \starttext $4 \underbrace{+ 3}_{\text{because of lorem} + 2}$ \stoptext then the spacing gets really big because of the long. How can I prevent this? (in LaTeX one can use \mathcal or so and that works) Best regards, Johann

2 2

prevent error page
by Johann Birnick 01 Jan '21

01 Jan '21

Hi there, in my setup I constantly have a pdf viewer open showing the output of context. When I recompile the viewer updates. Now if there is an error, the document fails to compile, of course. Previously the pdf file just remainded untouched, nice. But now with LMTX, the pdf will be overwritten with a pdf just saying "error". This makes my pdf viewer crash! I can't work like this. So how to prevent this "error" page and just let context remain the pdf untouched if there is an error? Best regards, Johann

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ntg-context January 2021