- ntg-context - NTG Mailing Lists

sqrt does not align properly
by Benny Schurig 05 May '21

05 May '21

Peak of the root ends at baseline, but only in some cases: \starttext $\sqrt{2}$ \qquad $\sqrt{a^2+b^2}$ \qquad $\sqrt{a^2-b^2}$ \stoptext In this example only \sqrt{a^2+b^2} works as expected [ConTeXt ver: 2021.04.29 23:09 LMTX fmt: 2021.5.4] Typesetting in ConTeXt live is correct. Benny

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issue with Public Sans
by Pablo Rodriguez 04 May '21

04 May '21

Dear listt, I have problems with current latest (from 2021.04.29 23:09) to get proper character spacing using Public Sans (https://public-sans.digital.gov/) \definefontfamily[mainface][rm] [Public Sans] \setupbodyfont[mainface] \starttext \doloopoverlist{\rm,\it,\bf,\bi} {\startpar\recursestring\input zapf\stoppar} \stoptext Could anyone confirm this? I wonder whether the typeface itself is missing something. Many thanks for your help, Pablo -- http://www.ousia.tk

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conditionally add \vfill before section if at end of page
by denis.maier＠ub.unibe.ch 04 May '21

04 May '21

Hi, I'm still playing/struggling with vertical glue to have pages of a constant height. The following settings give reasonable results: ============= \setuppapersize[A5][A5] \setupalign[line] \setuptolerance[vertical,stretch] \setupinterlinespace[ stretch=0.001, shrink=0.001, ] \showframe \starttext \section{Section} \input knuth\par \input knuth\par \input knuth\par \input ward \input ward \input ward %\vfill % can a \vfill be added automatically here? \section{Section} \input knuth\par % here we don't have a \vfill as this is on the middle of the page \section{Section} \input knuth\par \stoptext ====================== However, I don't want the stretching if the next page starts with a section heading. Is there any way to add a \vfill on a page immediately before a section heading? \doifatpageborder \doifatpagestart or something similar ? Thanks for you help, Denis

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Syriac (Estrangelo Edessa) query
by Alan Bowen 04 May '21

04 May '21

I am trying to set text in the Syriac font Estrangelo Edessa. Right now, I have the following (taken for the wiki): \definefontfeature[semitic-complete] [mode=node,analyze=yes,language=dflt,ccmp=yes, autoscript=position,autolanguage=position, init=yes,medi=yes,fina=yes,isol=yes, mark=yes,mkmk=yes,kern=yes,curs=yes, liga=yes,dlig=yes,rlig=yes,clig=yes,calt=yes] \definefontfeature[arabic] [semitic-complete] [script=arab] \definefontfeature[syriac] [arabic] [fin2=yes, fin3=yes, med2=yes] \definefallbackfamily[mainface][rm][estrangeloedessa] [range={syriac}, features=syriac] \definefontfamily[mainface][rm][STIX Two Text] [protrusion=quality, expansion=quality, mode=node, force=yes, features={default, f:oldstyle}] \setupbodyfont[mainface, 20pt] \starttext Hello world! { \setupalign[r2l] ܐܝܟ ܟܝܢܐ ܕܐܐܪܣ ܡܲܥܕܢܘܬܗܘܢ ܘܡܲܥܒܿܕܝܢ ܩܪܒ̈ܐ ܘܚܣܡܐ ܠܗܠܝܢ } \stoptext Though the file compiles, the Syriac text does not look the same as the source text (Estrangelo Edessa unicode). See attachment. Any guidance in fixing this will be gladly received. Alan Disclaimer: I do not know Syriac.

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installing luametatex query
by Alan Bowen 03 May '21

03 May '21

I have re-installed the latest luametatex (macOS) following the directions on the wiki ( https://wiki.contextgarden.net/Installing_ConTeXt_LMTX_on_MacOS) Though luametatex --version mtxrun --generate are successful, context --version context --make --all gets mtxrun | unknown script 'mtx-context.lua' or 'mtx-mtx-context.lua' and luatools --generate gets zsh: command not found: luatools Any suggestions will be gladly received. Alan

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15th International ConTeXt Meeting
by Taco Hoekwater 03 May '21

03 May '21

TL;DR: See https://meeting.contextgarden.net/ for registration! Hi all, Registration for the next ConTeXt meeting is now open! 15th International ConTeXt Meeting ================================== The thirteenth ConTeXt meeting will take place in Bassenge, Belgium on September 20-25, 2021 You are cordially invited to join the 15th ConTeXt meeting. The meeting will host ConTeXt and Lua(Meta)TeX developers and users and gives you the opportunity to present your results, experiences and ideas on future development. The talks will be followed-up by tutorials on different ConTeXt and Lua(Meta)TeX techniques. Our meeting will take place in person since we assume vaccination levels will be high enough by then that travel restrictions will be lifted (yeah!). Alternatively, it is also possible to register for on-line attendance so you can listen to the talks from your home office. On-line attendance is free, but only open to ConTeXt Group members. Thematic context ================ The theme for this meeting is: expanding orbits You can interpret that any way you want. But, as in previous years, anything at all related to ConTeXt that you would like to share is an acceptable subject for a presentation, tutorial, discussion, Q&A session, demonstration, workshop, recital, sketch, or sermon. The programme committee is Hans Hagen and Taco Hoekwater. Social context ============== Registration opened today. We will be back in ’t Sjetootje in Bassenge-Boirs, the same location as the meetings in 2011, 2014 and 2019. There has been some remodelling (there is now an actual conference room with built-in wifi!) but the basic layout of the chateau has not changed so, as before, (single) rooms are very scarce. Note that the meeting starts on Monday evening and ends on Saturday morning. It is possible to stay on for another day (or even two, if you are OK with getting up early on Monday the 27th). Arriving early is not possible, though. Calendric context ================= • May 3, 2021, beginning of registration • July 1, 2021, deadline for early bird payment • September 20-25, 2021, 13th ConTeXt Meeting See https://meeting.contextgarden.net/ for more details. Hope to see you in September, Taco (your local organizer this year) — Taco Hoekwater E: taco(a)bittext.nl genderfluid (all pronouns)

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LuaMetaFun MPinclusions doublefun
by Fabrice L 02 May '21

02 May '21

Dear list, I’m experimenting LuaMetaFun. The following MWE example works as expected, but stop to work as soon as I uncomment the « doublefun » commands, like : \startMPinclusions{doublefun} (… ) \startMPpage[instance=doublefun] % MWE —————————— \startMPinclusions%{doublefun} vardef Macrotest(expr ANumber) = draw textext(decimal(ANumber)) scaled 10; enddef ; \stopMPinclusions \startMPpage%[instance=doublefun] Macrotest(22) ; path p; p := (0,0)..(3,3.5)..(9,-3.5).. (12,0)..(9,3.5)..(3,-3.5)..cycle; draw lmt_followtext [ text = "\dorecurse{9}{· Justssss random text }", path = p xsized TextWidth, autoscaleup = "max", reverse=true, ] xsized 5in; \stopMPpage % ——————————— Log says: metafun > log > error: Isolated expression metafun > log > metapost > log > metapost > log > <to be read again> metapost > log > ( metapost > log > <*> Macrotest( metafun > log > metafun > log > I couldn't find an '=' or ':=' after the expression that is shown above this I have search the making list for examples, but did not not found anything. Thanks for any help ! Fabrice.

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latest standalone—lua error
by Alan Bowen 30 Apr '21

30 Apr '21

With ConTeXt ver: 2021.04.28 18:39 LMTX fmt: 2021.4.29 int, I am now getting the following error on compiling with files that were OK previously. Is there something that I need to change? Alan lua error > lua error on line 232 in file ../../env_Aestimatio-00.tex: registered function call [1151]: ...TeX/tex/texmf-context/tex/context/base/mkiv/font-sel.lua:648: attempt to index a nil value (field 'tf') stack traceback: ...TeX/tex/texmf-context/tex/context/base/mkiv/font-sel.lua:648: in field 'filefallback' ...TeX/tex/texmf-context/tex/context/base/mkiv/font-sel.lua:666: in field 'mathfallback' ...TeX/tex/texmf-context/tex/context/base/mkiv/font-sel.lua:692: in field 'fallback' ...TeX/tex/texmf-context/tex/context/base/mkiv/font-sel.lua:782: in function <...TeX/tex/texmf-context/tex/context/base/mkiv/font-sel.lua:777> (...tail calls...) 222 expansion=quality, 223 mode=node, 224 force=yes, 225 ] 226 \definefallbackfamily[mainface] [mm] [STIX Two Text] 227 [range=digitsnormal, 228 force=yes, 229 features=f:oldstyle] 230 231 \definefontfamily[mainface][mm][STIX Two Math] 232 >> 233 \setupbodyfont[mainface, 10pt] 234 235 \setupalign[hanging, stretch, hz] 236 237 %%%%%%%%%% French 238 %At beginning insert: 239 % \mainlanguage[fr] 240 % \setcharacterspacing[frenchpunctuation] 241 % \startsetups[footnote:french] 242 %\setcharacterspacing[frenchpunctuation] mtx-context | fatal error: return code: 256

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custom zig zag sidebars
by mf 29 Apr '21

29 Apr '21

Hello, I made an experiment to add alternatives to sidebars (see attachment). I discovered the sidebar is drawn by anch_sidebars_draw in metapost/context/base/mpiv/mp-apos.mpiv. I've redefined it locally to add alternatives. To make fancy, zig zag bars I defined a macro, draw_pattern_bar, that draws a bar repeating a pattern which is a path connecting (0,0) and (1,0). The macro has 3 parameters (actually it has more params, but the remainder are anch_sidebars_draw params): - a pattern, which is a path from (0,0) to (1,0) that should have a vertical size = 1; it's a sort of waveform - a pattern length, by which the pattern is xsized - a pattern width, by which the pattern is ysized Then the pattern is rotated along the bar direction (so -90 degrees) and drawn many times until it covers the bar length. A proposal and a question: - patternlength and patternwidth could become \setupsidebar params; alternative (=2,3,4...) could be used to specify the pattern (a sort of waveform); currently alternative=0 is a solid bar and alternative=1 is a dashed one - in case of long patterns (a patternlength spanning more lines of text) the last replica of the pattern should be clipped not to exceed the last line of the sidebarred text (see the last example): how can that be done? Massi

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calculating optimal height of textblock
by denis.maier＠ub.unibe.ch 29 Apr '21

29 Apr '21

Hi, how do you usually calcultate your layouts? For example in this example, the third value for height is not really helpful as there will never be a complete line : ================= \setupbodyfont[10pt] \definepapersize[test][width=140mm,height=208mm] \setuppapersize[test][test] \setuplayout[reset] \setuplayout[backspace=17mm, topspace=19mm, header=0mm, footerdistance=4mm, footer=5mm, width=105mm, %height=174mm, height=178mm, %height=177mm, % does not suffice for a complete line rightmargin=0mm, leftmargin=0mm, ] \startsetups[mypenalties] \setdefaultpenalties \setpenalties\clubpenalties{2}{0} \setpenalties\widowpenalties{2}{0} \setpenalties\displaywidowpenalties{2}{0} \stopsetups \setuplayout[setups=mypenalties] %\showframe \showmakeup %\showsetups \starttext \dorecurse{5}{\input knuth\par} \stoptext ================= How do you do this usually? Any best-practices? Hints? Trial and error seems to work ok, but maybe there is a more efficient method... Best Denis

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