May 2017 - ntg-context - NTG Mailing Lists

Module for Markdown: any volunteer to make a ConTeXt interface?
by Mojca Miklavec 24 Dec '17

24 Dec '17

Hi, There's a really nice module for processing markdown: https://github.com/Witiko/markdown that has been presented during the TUG meeting and is included in TeX Live. It theoretically works for ConTeXt (the output is perfectly usable), but it needs a cleanup of the user interface to turn the options on and off. For example, it would be nice to use something like \setupmarkdown [fencedCode=true] rather than \def\markdownOptionFencedCode{true} Is anyone willing to look into the code and help the author fix the interface? (I can add it to our distribution if needed.) Mojca

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Modern CV like cover letter example
by Jonas Baggett 02 Dec '17

02 Dec '17

Hello everyone, As suggested by Wolfgang Schuster here : https://mailman.ntg.nl/pipermail/ntg-context/2016/087113.html , I have added on the wiki an example of a cover letter that has a similar style to Modern CV. You will find it here : http://wiki.contextgarden.net/Letter_style#Modern_CV_like_cover_letter . I hope it can help. Cheers, Jonas Baggett

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Missing Chapter Numbers
by Thangalin 22 Oct '17

22 Oct '17

\setuphead[chapter][number=yes,] \setuphead[section][number=no,] \setuphead[subsection][placehead=hidden,] \definehead[scenesubsection][subsection] \starttext \dorecurse{5}{ \chapter{Chapter Name} \section{Section Name} \startscenesubsection \input tufte \stopscenesubsection } \stoptext The chapter headings should be enumerated 1 through 5, but some chapter numbers are either hidden or enumerated incorrectly. Using "placehead=no" causes the spacing to change when framing an entire section. Related: https://github.com/contextgarden/context-mirror/blob/b14f992ef5f4e868c9959b… Any ideas on how to work around this issue? Thank you!

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Expandable \doifelse tests
by Henri Menke 08 Sep '17

08 Sep '17

Dear list, Motivated by this question on TeX.SX https://tex.stackexchange.com/questions/370868 I was fiddling around with the \doifelse conditionals. I noticed that most of them are not expandable, which makes it very difficult to concatenate them. Here a simple example \starttext \doifelse{a}{% \doifelse{x}{x}{a}{b}% <- evaluates to "a" but not expandable }{yes}{no} \stoptext This outputs "no" even though "a" is equal to "a". Would it be possible to substitute these conditionals by expandable ones? I would volunteer to help make them expandable. Cheers, Henri

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BUG: Colour spilling in btxrendering
by Henri Menke 09 Aug '17

09 Aug '17

Dear list, I reported this already some time ago but apparently it went unnoticed. https://mailman.ntg.nl/pipermail/ntg-context/2016/086227.html When you place hyperlinks in the bibliography the colour »spills over«, see MWE below. The link is only on the string `Phys. Rev. 140 A1133–A1138 (1965)` but the whole line is coloured. Cheers, Henri --- \startbuffer[references] @article{Kohn1965, title = {Self-Consistent Equations Including Exchange and Correlation Effects}, author = {Kohn, W. and Sham, L. J.}, journal = {Phys. Rev.}, volume = {140}, issue = {4A}, pages = {A1133--A1138}, numpages = {0}, year = {1965}, month = {Nov}, publisher = {American Physical Society}, doi = {10.1103/PhysRev.140.A1133}, url = {https://link.aps.org/doi/10.1103/PhysRev.140.A1133} } \stopbuffer \setupinteraction[state=start] \usebtxdataset[references.buffer] \usebtxdefinitions[aps] \starttext \nocite{Kohn1965} \placelistofpublications \stoptext

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Creating SVG: using MetaFun, exporting proper units, conversion to DXF
by Mojca Miklavec 27 Jul '17

27 Jul '17

Hi, I want to play with CNC and don't yet have any experience with CAD software (nor the licence for the expensive ones) other than perhaps some Blender, so I decided to try to use the super ugly route with metapost -> svg -> dxf -> g-code for the first time. I have a few questions. (1) I love Hans' shortcuts in metafun, but I seem to remember that things like input metafun; or perhaps input mp-tool; used to work, so that I don't have to remember to use mpost -mem=metafun my-drawings.mp when compiling the graphics. Did the method with "input" ever work (or is it supposed to work)? Now I'm getting a bunch of weird errors. I would love to specify everything in the source file and then just call mpost. If that doesn't work, that's fine, I can still add "-mem=metafun", but ... (2) I guess that using "raw metapost" is the only sane way to generate SVG. If I use metapost inside ConTeXt that's probably not going to work, right? (3) Is there any way to convince the SVG output mode to generate something like <svg ... width="100.0mm" height="100.0mm" ... > rather than <svg ... width="283.46456692913387" height="283.46456692913387" ... > because the program I use to convert SVG to DXF has troubles interpreting "points" properly. I read somewhere that they assume 90 points per inch because that's Inkskape's default. (4) Does anyone have a better proposal for conversion into DXF (or G-code)? I'm currently playing with FreeCAD and I've seen some tutorials showing that AutoCAD can open PDF directly, but I don't want to buy AudoCAD just for the sake of converting files. (Not to mention that FreeCAD's SVG importer crashes when reading output from MetaPost unless I manually remove parts of the SVG, but that's an unrelated problem that I'm somehow able to overcome.) Thank you, Mojca

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Unicode text conversion
by Procházka Lukáš Ing. 16 Jun '17

16 Jun '17

Hello, does ConTeXt contain a built-in Lua conversion routine to convert text in UTF-16 (and others) to UTF-8 string? Something like: ---- \startluacode local str = "A unicode string" -- Or e.g. string loaded from a file str = convert(str, "utf16", "utf8") context(str) \stopuacode ---- TIA. Best regards, Lukas -- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz | IDDS:nrpt3sn Bezová 1658 147 14 Praha 4 Tel: +420 241 096 751 (+420 720 951 172) Fax: +420 244 461 038

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Character translation with Luaotfload
by Hans Åberg 13 Jun '17

13 Jun '17

Since Luaotfload is extracted from ConTeXt, I figure people here will know this: In the code below, math mode '.' and ',' are translated into ':'and ';', which seems to occur because that is what ASCII/Unicode has in those positions, unlike CMMI. So how to correct this? The issue is really trying to find get texinfo.tex working with Unicode fonts using LuaTeX, as it probably does not work with ConTeXt. (Later versions of the former use LuaTeX UTF-8 directly without translations.) ---- \input luaotfload.sty \font\stix={file:STIX-Regular.otf} at 10pt \font\stixit={name:STIXMath-Regular} at 10pt \font\stixsc={file:STIX-Regular.otf} at 7pt \font\stixscsc={file:STIX-Regular.otf} at 5pt \stix \textfont0=\stix \textfont1=\stixit % Translates ',' into ';'. \scriptfont0=\stixsc \scriptscriptfont0=\stixscsc \scriptfont1=\stixsc \scriptscriptfont1=\stixscsc \textfont2=\stix \textfont3=\stix Hello 𝑃, ±, $𝑥 = ±𝑦_𝑃$, $$𝑃_0, …, 𝑃_{𝑘 - 1} ⊢ 𝑃.$$ \end ----

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Position of prime for derivatives
by Otared Kavian 08 Jun '17

08 Jun '17

Hi Hans, Thanks for having fixed the behavior of the prime in the latest beta release (ConTeXt version 2017.05.15 21:48). However, as you may see in the two attached PDF files, the result is still incorrect when one types for example $f_2’’(x)$, which should give the same result as $f’’_2(x)$. The correct behaviour is that obtained with mkii. Indeed one can circumvent the behaviour of the latest beta release of mkiv by using tricks such as the ones in the example code below, but this should be avoided in my opinion. The following PDF have been obtained with mkii and mkiv with the following example code. Best regards: OK %%% begin derivatives-prime.tex \starttext \startformula f''_{2}(x) = f_{2}''(x) = f^{''}_{2}(x) = f_{2}^{''}(x) % = f^{{}^{''}}_{2}(x) \stopformula As one may see the result of \type{f_{2}''(x) = } $f_{2}''(x)$ is not correct in \type{mkiv}. The following positions of the superscripts \type{(3)} are correct both in \type{mkii} and in \type{mkiv}. \startformula f^{(3)}_{2}(x) = f_{2}^{(3)}(x) \stopformula \stoptext %%% end derivatives-prime.tex

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Opentype features and space after comma in math mode
by Jose Luis Arellano 03 Jun '17

03 Jun '17

Hello list, Two questions: 1) How can i enable opentype features (onum, lnum, tnum) in math mode? 2) How can i avoid the space after comma in math mode? I tried this without success: \definefontfeature[default][default][onum=yes,lnum=no,tnum=no] \definefontfeature[lnum][default][onum=yes,lnum=no,tnum=no,mode=base] \definefontfamily[mainface][serif][TeX Gyre Pagella] \definefontfamily[mainface][math][TeX Gyre Pagella Math][features=lnum] \setupbodyfont[mainface] \starttext 1,123\par \m{1,123}\par \stoptext Thanks in advance...

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