- ntg-context - Mailing Lists

node.setglue broken in LuaMetaTeX
by Max Chernoff 07 Nov '22

07 Nov '22

Hi Hans, Using node.setglue in LuaMetaTeX sets all of the glue components to zero. This example: \startluacode local stretch_order = "stretch_order" local shrink_order = "shrink_order" if status.luatex_engine == "luametatex" then stretch_order = "stretchorder" shrink_order ="shrinkorder" end local glue = node.new "glue" print(node.getglue(glue)) node.setglue(glue, 1, 2, 3, 4, 5) print(node.getglue(glue)) glue.width = 1 glue.stretch = 2 glue.shrink = 3 glue[stretch_order] = 4 glue[shrink_order] = 5 print(node.getglue(glue)) node.setglue(glue, 1, 2, 3, 4, 5) print(node.getglue(glue)) \stopluacode produces this output in MkIV: 0 0 0 0 0 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 but this output in MkXL: 0 0 0 0 0 0 0 0 0 0 1 2 3 4 5 0 0 0 0 0 Thanks, -- Max

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\jobname and \doifelse
by Pablo Rodriguez 06 Nov '22

06 Nov '22

Dear list, using current latest (2022.10.22 11:23), I have the following sample: \starttext \doifelse{\jobname}{a} {yes}{no} \jobname \startluacode if tex.jobname == "a" then context("yes") else context("no") end \stopluacode \stoptext I get "no" as in TeX and "yes" with Lua, being "a.tex" the source file. The TeX conditional used to work before. Am I missing something or have I hit a bug? I’m on Linux64 (if this may be relevant). Many thanks for your help, Pablo

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OpenBSD binaries
by damien＠thiriet.web4me.fr 04 Nov '22

04 Nov '22

Hi, I have two question regarding OBSD binaries: 1) the building farm holds two binaries: current -stable version (or -release?) and the previous version. Since upgrading OBSD with sysupgrade is very easy, but AFAIU works only to upgrade from version (n-1) to n where n is current relase number, I wonder if it wouldn't easier to maintain binaries only for the current version: keeping the OS up to date is strongly recommended. https://www.openbsd.org/faq/faq5.html#Flavors This might ease OBSD binaries management. What do other OBSD users think about it? 2) AFAIU, sources are now available for downloading. I understand it would be possible to make a package build for my system, so that I can upgrade OBSD without having to wait for the next binaries upload. * binaries are quite small, so they should compile quite quickly. Am I right? * I believe Mojca has already a compiling script. Where can I find it? * which adress should I point to fetch the sources for compilation? Best regards, Damien Thiriet

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font features
by Thomas A. Schmitz 03 Nov '22

03 Nov '22

Hi, is there an easy way to get a list of all features that a font has and typeset a sample text to see the result of every single feature? There probably is, but I couldn't find anything... All best Thomas

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Bug in math alignment
by Otared Kavian 03 Nov '22

03 Nov '22

Hi Hans and Mikael, I think there is an issue with the size of math fonts in \frac when used in math alignments, as it is is shown in the following example. %% begin bug-mathalignment.tex \definemathmatrix[alignedcases] [align={1:right,2:left,3:left}, distance=3pt, left={\left\{}, right={\right.}, style=\displaystyle] \starttext Consider this \placeformula \startformula \startalignedcases \NC - \Delta u \NC = 0 \NC \qquad\text{in }\, \Omega \NR \NC \frac{\partial u}{\partial {\bi n}} \NC = V u + \phi \NC \qquad\text{on }\, \partial\Omega. \NR \stopalignedcases \stopformula or this (with\type{\displaystyle} added) \placeformula \startformula \startalignedcases \NC - \Delta u \NC = 0 \NC \qquad\text{in }\, \Omega \NR \NC \displaystyle\frac{\partial u}{\partial {\bi n}} \NC = V u + \phi \NC \qquad\text{on }\, \partial\Omega. \NR \stopalignedcases \stopformula Actually, one should have this \startformula \frac{\partial u}{\partial {\bi n}} = V u + \phi \qquad\text{on }\, \partial\Omega. \stopformula If one adds \type{\displaystyle} both to the numerator and denominator of \type{\frac}, the result is correct: \placeformula \startformula \startalignedcases \NC - \Delta u \NC = 0 \NC \qquad\text{in }\, \Omega \NR \NC \frac{\displaystyle\partial u}{\displaystyle\partial {\bi n}} \NC = V u + \phi \NC \qquad\text{on }\, \partial\Omega. \NR \stopalignedcases \stopformula \stoptext %% end bug-mathalignment.tex

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context --autopdf and --showdirectives
by Henning Hraban Ramm 02 Nov '22

02 Nov '22

I’d like to configure the default behaviour of "context --autopdf"; since on my Mac I must always write "--autopdf=auto", otherwise context tries to call wine "sumatrapdf.exe" -reuse-instance -bg-color 0xCCCCCC instead of e.g. "open". There’s a hint about "directives_pdfview_method", so I wanted to find out more about directives: "context --showdirectives" looks promising; it tells me "result saved in file: .../texmf-context/tex/context/base/mkiv/mtx-context-setters.pdf", but that file isn’t there; it is actually in the current directory, but broken. * How can I configure the command for --autopdf ? (Something in texmfcnf.lua?) * Can we add additional options ("pdfview methods: auto default okular pdfxcview sumatra"), e.g. open (should be default on Mac), xdg-open (could be default on Linux)... * What’s wrong with --showdirectives? Hraban

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Create the values of a sequence with Lua
by Fabrice Couvreur 31 Oct '22

31 Oct '22

Hi, The idea is to fill the array with the sequence defined by p(0) = 0.3 and p(n + 1) = 0.3 + 0.7*p(n) The problem is that I don't really master Lua but I will learn when I have some time! Thanks for your help. Fabrice \starttext \startluacode context.startxtable({"align={middle,lohi},width=2cm,bodyfont=9pt"}) p = {} p[0] = 0.3 for i=0,19 do p[i+1] = 0.3+0.7*p[i]^2 end context.startxrow() for i=0,19 do context.startxcell() context(i) context.stopxcell() context.startxcell() context(i+1) context.stopxcell() context.startxcell() context("%0.8f",p[i] ) context.stopxcell() context.stopxrow() end context.stopxtable() \stopluacode \stoptext

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Suboptimal German hyphenation
by Leah Neukirchen 31 Oct '22

31 Oct '22

Hi, I was typesetting some German text on a narrow page when I discovered the justification wasn't as good as expected. I think I tracked this down to differences in hyphenation points, namely, ConTeXt has fewer: \starttext \language[de] \showhyphens{Zusammenhang} \showhyphens{anderswo} \showhyphens{anderswoher} \stoptext This shows languages > hyphenation > show: Zusam[-||]men[-||]hang languages > hyphenation > show: anderswo languages > hyphenation > show: anders[-||]wo[-||]her Now with LaTeX and Babel: \documentclass{article} \usepackage[ngerman]{babel} \begin{document} \showhyphens{Zusammenhang} \showhyphens{anderswo} \showhyphens{anderswoher} \end{document} This shows [] \TU/lmr/m/n/10 Zu-sam-men-hang [] \TU/lmr/m/n/10 an-ders-wo [] \TU/lmr/m/n/10 an-ders-wo-her The LaTeX hyphenation points agree with the German Duden dictionary. As none of the words use more than 7-bit ASCII, I think newer pattern changes are not related. Curiously, the same effect already appears with MKII and MKIV from TeXLive 2014, the oldest I had around. I'm also surprised 'anders-wo-her' gets hyphenated but 'anderswo' is not hyphenated at all. I could not reproduce a difference with English words so far. Any ideas? As far as I understand, MKIV/LMTX should use the de-hyph-1996 patterns which LuaLaTeX uses these days too, via hyph-utf8. Thanks, -- Leah Neukirchen <leah(a)vuxu.org> https://leahneukirchen.org/

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What to do when ConTeXt not revealing the error details?
by Joel 31 Oct '22

31 Oct '22

I have a very large document that, when compiled, produces a PDF, but reports the error "mtx-context | fatal error: return code: 1". The PDF can open, but after about 100 pages in, the content starts appearing all in the wrong place. Usually when I compile, it says there is an error, and I just scroll up until I find the details. I've scrolled through the output, and *.log file, but cannot see anything that looks like an error. It could be that just because the document is so long (about 1200 pages), I can't find the error among the huge logs, but I looked through them all carefully. How can I isolate the error when ConTeXt isn't showing it? Is there some setting for showing only errors, or revealing more details about an error? --Joel

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is something wrong with the mailing list?
by Henning Hraban Ramm 30 Oct '22

30 Oct '22

Hi again, I didn’t get any mails from ntg-context between 2022-10-26, 01:52 and my mails now. Was there no activity? (Maybe I was switched off due to bounced mails, because my provider had left outdate the ssl certificate of the mail server...) Hraban

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