- ntg-context - Mailing Lists

setupexternalfigures and resoĺution
by juh+ntg-context＠mailbox.org 02 Sep '22

02 Sep '22

Hi, what is resolution meant to do? Whatever I insert as resolution, I get no change. \setupexternalfigure[location={default,local},resolution=30] \starttext \externalfigure[hacker] \stoptext What am I missing? TIA juh

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update old MP code
by Henning Hraban Ramm 01 Sep '22

01 Sep '22

Hi, here’s a snippet of old Metapost code that I’d like to use in ConTeXt. I didn’t manage to update it to MetaFun – can you help me? Hraban ----- \setupbodyfont[plex,ss,8bp] \startreusableMPgraphic{moiree} % 1994 by Bogusław Jackowski (GUST) defaultfont := "\truefontname{Sans}"; pickup pencircle scaled 0.3bp; defaultscale := .8; linecap := butt; labeloffset := 1.5bp; defaultthickness:=.3bp; % 5 pixels at 1200 dpi % tertiarydef p ulshiftedto s = p shifted (s-ulcorner(p)) enddef; def Moire(expr size)(text densities)= save dn,a,b,k,labit,n,p,q,s,xs; n := 32; dn := 0; for i := densities: d[incr dn] := abs(i); if i>1: labit[dn]:=1; fi endfor a := min(d[1],d[dn]); b := max(d[1],d[dn]); image( for i=-n upto n: draw (0,i*in/a)--(size,i*in/b); %withpen pencircle scaled 3/5defaultthickness; endfor for i=1 upto dn: k:=(a/d[i]-1)/(a/b-1); if known labit[i]: string s; s:=decimal(d[i]); xs:=0; picture p,q; q := p := depthless(s); if i=dn: q := depthless(s & " lpi"); xs := width(q)-width(p); fi label.top(q, (k*size+1/2xs, n*in/a+1.5mm)); fi draw (k*size, n*in/a+1.5mm)--(k*size, k[n*in/a,n*in/b]+.5mm); draw (k*size, -n*in/a-1.5mm)--(k*size, -k[n*in/a,n*in/b]-.5mm); endfor ) enddef; draw Moire(57.5mm)(200, 175, 150, 125, 100, 75); % ulshiftedto (142mm, 38.5mm); \stopreusableMPgraphic \starttext \reuseMPgraphic{moiree} \stoptext -----

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Hebrew punctuation with SBL Hebrew
by denis.maier＠unibe.ch 31 Aug '22

31 Aug '22

Hi, I’m running into something weird with Hebrew punctuation. Consider the example below. SBL Hebrew gives me incorrect results when there’s a vaw with a holam = וֹ just before a chet with a patach = חַ => the patach below the chet ist misplaced. If I remove the holam from the vaw, everything looks ok. Oddly, in Linux Libertine I get the correct results in both cases. Does anyone know what the problem is here? User error? A bug in SBL Hebrew (which would be very odd since that font should be designed specifically for that kind of stuff). A missing seeting? Best, Denis \definefontfamily[notok][rm][SBL Hebrew][features=hebrew] \definefontfamily[ok][rm][Linux Libertine O][features=hebrew] \setupdirections[bidi=global,method=unicode] \starttext Ok: {\switchtobodyfont[notok] חִיוּחוחַ } Broken: {\switchtobodyfont[notok] חִיוּחוֹחַ } Linux Libertine works in both cases: Ok: {\switchtobodyfont[ok] חִיוּחוחַ } Ok: {\switchtobodyfont[ok] חִיוּחוֹחַ } \stoptext

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underbar aligns badly
by juh+ntg-context＠mailbox.org 31 Aug '22

31 Aug '22

Dear all, I fear I hit a bug or missed a change. \starttext \underbar{First line}\\ Second line. \stoptext With lmtx from 2022.07.24 the lines align fine. With current lmtx the first line has a small indent. Ciao! juh

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Re: [NTG-context] accessing tex.sprint from pure Lua code.
by Hans Hagen 30 Aug '22

30 Aug '22

On 8/30/2022 8:02 PM, Hans van der Meer wrote: > In Terminal (say Unix window) calling > > lua some-file.lua > > and within that file code like > tex.sprint ... > token... > > Thus calling in the tex-library outside ConTeXt. no, tex is not a library .. but of course you can make a small tex file that wraps your lua and run that file with context keep in mind that tex is a ecosystem: fotns, languages etc 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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accessing tex.sprint from pure Lua code.
by Hans van der Meer 30 Aug '22

30 Aug '22

How can ik access the tex library in pure Lua for tex.sprint and token.setmacro? I guess something like require XYZ ? dr. Hans van der Meer

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Parallel texts: verse with blanks between stanzas via tabulate
by denis.maier＠unibe.ch 30 Aug '22

30 Aug '22

Hi, I need to typeset two poems side by side. Usually, I use the tabulate environment for typesetting parallel texts. However, for poems this does not quite work as tabulate does not seem to allow blanks between the stanzas. See MWE below. Am I missing someting? Is there a better way to achieve this? Best, Denis %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \startbuffer[lines] \startlines[after={\blank}] this is a poem with two stanzas \stoplines \stopbuffer \starttext With a blank between the stanzas: \getbuffer[lines] Without a blank between the stanzas: \starttabulate[|p|p|] \NC \getbuffer[lines] \NC \getbuffer[lines] \NC\NR \stoptabulate \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

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Merging two lua tables
by Aditya Mahajan 30 Aug '22

30 Aug '22

Hi, How do I merge two lua tables? I believe that table.merge or table.merged should do the trick, but I cannot figure out how to use them. ``` local t1 = { 1, 2 } local t2 = { 8, 9 } local m1 = {} table.merge(m1,t1, t2) table.print(m1) local m2 = table.merged(t1, t2) table.print(m2) ``` Processing the file with context filename shows that both m1 and m2 are {8, 9}. What am I missing. Thanks, Aditya

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SHA added to wiki
by Pablo Rodriguez 29 Aug '22

29 Aug '22

Dear list, I added https://contextgarden.net/SHA. I know that my composition is minimal and maybe the sample is poor. Just in case anyone might want to improve it. Best, Pablo

1 0

SHA calculation
by Hans van der Meer 28 Aug '22

28 Aug '22

With \directlua{context(md5.hex([===[#1]===]))} I can calculate the MD5 checksum. I thought there was another call for the calculation of the SHA checksum, but I could not find it in the documentation or on the context garden. Where to look? dr. Hans van der Meer

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