- ntg-context - NTG Mailing Lists

lmtx upload
by Hans Hagen 24 Jun '21

24 Jun '21

Hi, I uploaded a new version. I got sidetracked by an experiment. We can read from zip files, but as I had some tar archives I wondered if we could read from them. They happened to be compressed. It uses an already present infrastructure (early mkiv I played a bit with reading from zip files). \starttext \dorecurse{100}{ \input {tar:///e:/temporary/test/foo.tar?name=test.tex}\par \input {tar:///e:/temporary/test/foo.tar.xz?name=test.tex}\par \input {tar:///e:/temporary/test/foo.tar.gz?name=test.tex}\par } \stoptext The tar files are handled by lmtx itself, the gzipped variant uses the basic decompressor of the engine (different in lmtx than in mkiv but that should not matterl i only tested lmtx). The xz one is a bit more special as it uses the external xz program unless one has limlzma installed, e.g. in: tex/texmf-win64/bin/lib/luametatex/lzma/liblzma.dll (mtxrun --generate makes it locatable). In all three examples performance is quite ok. It might a nice solution for cases where one has many small files cluttering the system. It actually might be more efficient to use tar.xz instead of zip files but then we also need to ship the lib and that is not on the agenda. I'm in no hurry with such alternatives (most of todays bandwidth is wasted with ads and related crap anyway). Concerning math .... we have several fonts, and the public ones don't really play the game like cambria does. So, th emore bugs become features, the more we're stuck with it. Now, once fonts are stable (including bugs) we cna think of goodie files that fix things but an other option is to tell the math machinery in what aspects as font is not really opentype. Read: when to follow a traditional code path. For the moment that is just an experiment and mostly meant for myself to explore things but it is likely to stay. Contrary to other variabls that control the math engine, here we have a bitset (adding dozens more commands makes no sense): \setupbodyfont[newcomputermodern-book] \starttext \startTEXpage[offset=10pt] $ \showglyphs\showmakeup[math] f = 10 $ $ \mathcontrolmode\plusone \bitwiseflip\mathfontcontrol\orditalickernmathcontrolcode \bitwiseflip\mathfontcontrol\charitalicnoreboxmathcontrolcode \bitwiseflip\mathfontcontrol\orditalickernmathcontrolcode \bitwiseflip\mathfontcontrol\charitalicnoreboxmathcontrolcode \bitwiseflip\mathfontcontrol\overrulemathcontrolcode \bitwiseflip\mathfontcontrol\underrulemathcontrolcode \bitwiseflip\mathfontcontrol\radicalrulemathcontrolcode \bitwiseflip\mathfontcontrol\fractionrulemathcontrolcode \bitwiseflip\mathfontcontrol\accentskewhalfmathcontrolcode \bitwiseflip\mathfontcontrol\accentskewapplymathcontrolcode \bitwiseflip\mathfontcontrol\accentitalickernmathcontrolcode \bitwiseflip\mathfontcontrol\delimiteritalickernmathcontrolcode \bitwiseflip\mathfontcontrol\charitalicwidthmathcontrolcode \bitwiseflip\mathfontcontrol\boxednoitalickernmathcontrolcode \bitwiseflip\mathfontcontrol\nostaircasekernmathcontrolcode \bitwiseflip\mathfontcontrol\textitalickernmathcontrolcode \showglyphs\showmakeup[math] f = 10 $ \stopTEXpage \stoptext Here, when \mathcontrolmode larger than zero, the \mathfontcontrol bitset will control code paths. When the value is zero, a normal opentype font is assumed. There might be some more options but it's a bit tricky (maybe I already introduced some issues, who knows). A font can also communicate a bitset and this is supported by a font feature in lmtx: % \definefontfeature[newcm-mathextra][mathcontrol={% % over_rule,% % under_rule,% % radical_rule,% % fraction_rule,% % accent_skew_half,% % accent_skew_apply,% % accent_italic_kern,% % delimiter_italic_kern,% % ord_italic_kern,% % char_italic_width,% % char_italic_no_rebox,% % boxed_no_italic_kern,% % no_staircase_kern,% % text_italic_kern,% % }] the newcm-mathextra is for instance applied with that font when defined (as usual with features), Again there is some detailed control and more can be added. So we have a control variable at the tex end and one that goes with a font. The 'bits' have funny names but such are the internals. Eventually I'll wrap this up in a progress article. In addition to the above there are a few fixes for issues discussed on the mailing list. I'm still trying to get tracing a bit nicer, so here is another trick: \starttext \def\MyPrimitiveCommandA#1{\hbox to 3cm{#1}} \untraced\def\MyPrimitiveCommandB#1{\hbox to 3cm{#1}} \bgroup \tracingall \MyPrimitiveCommandA{oeps} \MyPrimitiveCommandB{oeps} \egroup The first one gives: 2:3: \MyPrimitiveCommandA #1->\hbox to 3cm{#1} 2:3: #1<-oeps 2:4: {\hbox} 2:5: {entering adjusted hbox group (level 2) at line 10} and the second one: 2:3: \MyPrimitiveCommandB 2:4: {\hbox} 2:5: {entering adjusted hbox group (level 2) at line 11} not that users do much tracing, but sometimes it helps not to see clutter in the log for (e.g.) low level helpers that act like primiteves. Taks: \setbox0\hbox{test me} With "\showbox 0" we get: > \box0= 1:3: \hbox[hbox][color=1,colormodel=1], width 38.69073, height 7.37595, depth 0.13193, direction l2r 1:3: .\list 1:3: ..\glyph[32768][color=1,colormodel=1], language (n=1,l=2,r=3), hyphenationmode "79F3F, options "80, font <2: newcm10-book @ 12.0pt>, glyph U+000074 t ............................... But with "\showboxhere 0" gives \hbox[hbox][color=1,colormodel=1], width 38.69073, height 7.37595, depth 0.13193, direction l2r .\list ..\glyph[32768][color=1,colormodel=1], language (n=1,l=2,r=3), hyphenationmode "79F3F, options "80, font <2: newcm10-book @ 12.0pt>, glyph U+000074 t ............................... WHen we say: \meaning\showboxhere it reports itself as for instance \relax does. This because it is defined with the \untraced prefix (it's also unexpandable and protected against overloading when one has overloadmode set). \untraced\permanent\protected\def\showboxhere{\showbox nolevels content online } % no group/input info, only content, and forced online (There are cases where the meaning will show up, but at least it adds a little to the abstraction.) 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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Re: [NTG-context] Install script not working
by Jairo A. del Rio 24 Jun '21

24 Jun '21

El jue, 24 de jun. de 2021 a la(s) 16:55, Hans Hagen (j.hagen(a)xs4all.nl) escribió: > On 6/24/2021 11:47 PM, Jairo A. del Rio wrote: > > > > > > El jue, 24 de jun. de 2021 a la(s) 16:42, Hans Hagen (j.hagen(a)xs4all.nl > > <mailto:j.hagen@xs4all.nl>) escribió: > > > > On 6/24/2021 11:35 PM, Jairo A. del Rio wrote: > > > > > > > > > El jue, 24 de jun. de 2021 a la(s) 16:30, Hans Hagen > > (j.hagen(a)xs4all.nl <mailto:j.hagen@xs4all.nl> > > > <mailto:j.hagen@xs4all.nl <mailto:j.hagen@xs4all.nl>>) escribió: > > > > > > On 6/24/2021 11:20 PM, Jairo A. del Rio wrote: > > > > It prints: > > > > > > > > uname -m rb > > > hm, that is a real last resort attempt to determine what > > system it is > > > running on (we try to avoid such calls) > > > > > > -- on linux if HOSTNAME is not known (did that change?) > > > -- on sunos always (does anyone know an env var?) > > > -- on freebsd always (does anyone know an env var?) > > > > > > > > > Tbh I don't know. I'm on Ubuntu 20.04 and I haven't made any > > important > > > changes on the OS. In case it helps, only the latest LMTX > > produces this > > > error. > > > > > > (the 'rb' looks suspicious ... i'll check that) > > what does > > > > echo $HOSTTYPE > > > > > > The same as uname -m: x86_64 > > weird, so can you add a print (around 4037) > > elseif name=="linux" then > function resolvers.platform(t,k) > print("!!!!!",os.getenv("HOSTTYPE")) > local architecture=os.getenv("HOSTTYPE") or resultof("uname -m") or "" > > It prints "nil" here > and see what is printed > > > ----------------------------------------------------------------- > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > ----------------------------------------------------------------- > Jairo

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Re: [NTG-context] Install script not working
by Jairo A. del Rio 24 Jun '21

24 Jun '21

El jue, 24 de jun. de 2021 a la(s) 16:42, Hans Hagen (j.hagen(a)xs4all.nl) escribió: > On 6/24/2021 11:35 PM, Jairo A. del Rio wrote: > > > > > > El jue, 24 de jun. de 2021 a la(s) 16:30, Hans Hagen (j.hagen(a)xs4all.nl > > <mailto:j.hagen@xs4all.nl>) escribió: > > > > On 6/24/2021 11:20 PM, Jairo A. del Rio wrote: > > > It prints: > > > > > > uname -m rb > > hm, that is a real last resort attempt to determine what system it is > > running on (we try to avoid such calls) > > > > -- on linux if HOSTNAME is not known (did that change?) > > -- on sunos always (does anyone know an env var?) > > -- on freebsd always (does anyone know an env var?) > > > > > > Tbh I don't know. I'm on Ubuntu 20.04 and I haven't made any important > > changes on the OS. In case it helps, only the latest LMTX produces this > > error. > > > > (the 'rb' looks suspicious ... i'll check that) > what does > > echo $HOSTTYPE > > The same as uname -m: x86_64 > report? > > ----------------------------------------------------------------- > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > ----------------------------------------------------------------- > Jairo

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typescripts and variants
by denis.maier＠unibe.ch 24 Jun '21

24 Jun '21

Hi In my current project I need to use different variants if the Noto Serif font (Regular, Medium, Semi Condensed Bold, Regular ExtraBold.) Is my understanding of typescripts correct that I cannot have bold and extrabold in the same typescript? And that I need a typescript for regular and one for the semicondensed variants? Denis

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LMTX, BIdi, full paragraph, and spurious empty line
by Rik Kabel 24 Jun '21

24 Jun '21

Hello all, Last October Denis Maier complained about a spurious empty line generated with protrusion and bidi active and a full paragraph. (See https://www.mail-archive.com/ntg-context@ntg.nl/msg95916.html <https://www.mail-archive.com/ntg-context@ntg.nl/msg95916.html> or similar on your favorite mail archive.) I have recreated the issue without involving protrusion. When a paragraph is very full and bidi is on, an extra line seems to be generated. Without bidi there is no extra line. This is quite sensitive, of course, to line width. I have probably 30 instances of it occurring in a tightly-set bibliography. I would assume that it may occur in any text, but have not noticed it in the body of my book. I have created an example document that shows it. The problem disappears if bidi is turned off (comment out the first non-comment line) but of course then the RTL text is mis-set. In this example, the spurious line appears after the Walt Kelly entry. This was tested under ConTeXt ver: 2021.06.18 23:37 LMTX fmt: 2021.6.21, but is not a new problem with this version. /The problem does not occur with MKIV from the same installation./ %% Demonstration of spurious line insertion on full paragraph with bidi active \setupdirections [bidi=on,method=unicode] \definepapersize [Testing] [width=6.69in] \setuppapersize [Testing] \setuplayout [width=fit, backspace=1.4in, cutspace=1in, leftmargin=0.65in, rightmargin=0.65in] \setupwhitespace [small] \setupbodyfont [libertinus,11pt] \define\SetupBib{ \spaceskip 0.7\interwordspace plus .5\interwordstretch minus \interwordshrink \definedelimitedtext [Exdent] [leftmargin=1em, indenting={yes,-1em}, indentnext=yes]} \starttext \input jojomayer \input klein \blank[2*line] \SetupBib \startExdent Kelly, Cynthia C., ed. 2005. {\em Oppenheimer and the Manhattan Project: Insights into J.~Robert Oppenheimer, ‘Father of the Atomic Bomb’}. Singapore: World Scientific. Kelly, Walt. 1953. {\em The Pogo Papers}. New York, NY: Simon & Schuster. Kuhn, Thomas S. 1962. {\em The Structure of Scientific Revolutions}. Chicago, IL: University of Chicago Press. Weinreich, Max. 1945. “Der YIVO un di problemen fun undzer tsayt (דער ייִוואָ און די פּראָבלעמען פֿון אונדזער צײַט).” {\em YIVO Bleter} 25 (1): 3--18. The title is translated as {\em The YIVO and the problems of our time}, and also as {\em The YIVO faces the post-war world}. \stopExdent \stoptext Of course, there could be some other mechanism at work here than bidi, but changing that clears the problem in this instance. (It may be the adjustment to spaceskip that I use to tighten up the text in the bibliography, and if it is, I welcome an alternative way to do that.) -- Rik

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Re: [NTG-context] simplifying repeated macro calls in metafun
by Jeong Dal 24 Jun '21

24 Jun '21

Dear Otared, > > Regarding the way Aditya uses \startuseMPgraphic, it is also very instructive. > Dalyoung, can you also share the animation example for the foldings ? I am sure we are a few on the list to learn something… > 1. Here is the working sample of animation using \processMPbuffer which I did before. You can see it using adobe reader. \startbuffer[UDBasic] pair A,B,C,D; pair E, F, G, H; path p,q; numeric ang,maxNum; u:=1in; A=(.95*TextWidth,u); B=(0,u); C=(0,0); D=(.95*TextWidth,0); p := A--B--C--D; q := (TextWidth,1.5u)--(0,1.5u)--(0,-.5u)--(TextWidth,-.5u)--cycle; z0=(.1u,0); vardef nextPt (expr M,N) = if ypart(N) = 0: H := whatever[N, N + dir(.5*angle(M-N))*u] = whatever[A,B]; else: H := whatever[N, N + dir(.5*angle(M-N))*u] = whatever[C,D]; fi; H enddef; def grayUD(expr i) = draw G -- if ypart(B)=ypart(G): B -- C else: C -- B fi --z[i]; filldraw z[i]+2*(G-z[i])*u -- z[i] -- z[i+1] -- z[i+1]+(G-z[i])*u -- cycle withcolor .75white; draw G -- z[i+1] dashed evenly; draw z[0] for k=0 upto i: --z[k] endfor dashed evenly; clip currentpicture to q; setbounds currentpicture to boundingbox q; enddef; def linesUD(expr i) = draw p; draw z0 for k=0 upto i+1: --z[k] endfor dashed evenly; setbounds currentpicture to boundingbox q; enddef; \stopbuffer \startbuffer[UDpts] ang := 40; z[1] = whatever[z[0], z[0]+dir(ang)*u] = whatever[A,B]; G := whatever[z[0], z[0]+dir(2*ang)*u] = whatever[A,B]; for k = 2 upto 20: z[k] = nextPt(z[k-2],z[k-1]); maxNum := k; exitif xpart(z[k]) > TextWidth; endfor; \stopbuffer \startbuffer[UD0] draw p; setbounds currentpicture to boundingbox q; \stopbuffer \startbuffer[UD1] grayUD(0); \stopbuffer \startbuffer[UD11] linesUD(0); \stopbuffer \startbuffer[UD2] G := z0; grayUD(1) \stopbuffer \startbuffer[UD21] linesUD(1); \stopbuffer \startbuffer[UD3] G := z1; grayUD(2); \stopbuffer \startbuffer[UD31] linesUD(2); \stopbuffer \startbuffer[UD4] G := z2; grayUD(3); \stopbuffer \startbuffer[UD41] linesUD(3); \stopbuffer \startbuffer[UD5] G := z3; grayUD(4); \stopbuffer \startbuffer[UD51] linesUD(4); \stopbuffer \startbuffer[UDFinal] draw p; draw z0--z1--z2--z3--z4--z5--z6--z7--z8 dashed evenly; setbounds currentpicture to boundingbox q; \stopbuffer \setupinteraction[state=start] \usemodule[animation] \starttext \startanimation[menu=yes] {\processMPbuffer[UDBasic,UDpts,UD0]} {\processMPbuffer[UDBasic,UDpts,UD1]} {\processMPbuffer[UDBasic,UDpts,UD11]} {\processMPbuffer[UDBasic,UDpts,UD2]} {\processMPbuffer[UDBasic,UDpts,UD21]} {\processMPbuffer[UDBasic,UDpts,UD3]} {\processMPbuffer[UDBasic,UDpts,UD31]} {\processMPbuffer[UDBasic,UDpts,UD4]} {\processMPbuffer[UDBasic,UDpts,UD41]} {\processMPbuffer[UDBasic,UDpts,UD5]} {\processMPbuffer[UDBasic,UDpts,UD51]} {\processMPbuffer[UDBasic,UDpts,UDFinal]} \stopanimation \stoptext Now, I am trying to do the same thing using \startuseMPgraphic, but I don’t the correct result yet. Using \startuseMPgraphic, and \dorecurse, the code is simpler. But, it seems to me that \startanimation … \stopanimation is not working with \dorecurse{}{} … It just list all the graphics. Any hint is welcome. \startMPinitializations%{UDBasic} pair A,B,C,D; pair E, F, G, H; path p,q; numeric ang,maxNum; numeric n; %AM Added u:=1in; A=(.95*TextWidth,u); B=(0,u); C=(0,0); D=(.95*TextWidth,0); p := A--B--C--D; q := (TextWidth,1.5u)--(0,1.5u)--(0,-.5u)--(TextWidth,-.5u)--cycle; z0=(.1u,0); vardef nextPt (expr M,N) = if ypart(N) = 0: H := whatever[N, N + dir(.5*angle(M-N))*u] = whatever[A,B]; else: H := whatever[N, N + dir(.5*angle(M-N))*u] = whatever[C,D]; fi; H enddef; def grayUD(expr i) = draw G -- if ypart(B)=ypart(G): B -- C else: C -- B fi --z[i]; filldraw z[i]+2*(G-z[i])*u -- z[i] -- z[i+1] -- z[i+1]+(G-z[i])*u -- cycle withcolor .75white; draw G -- z[i+1] dashed evenly; draw z[0] for k=0 upto i: --z[k] endfor dashed evenly; clip currentpicture to q; enddef; def linesUD(expr i) = draw p; draw z0 for k=0 upto i+1: --z[k] endfor dashed evenly; % AM: removed. Set in in the main code % setbounds currentpicture to boundingbox q; enddef; ang := 40; z[1] = whatever[z[0], z[0]+dir(ang)*u] = whatever[A,B]; % AM: Changed next line from G to z[-1] z[-1] = whatever[z[0], z[0]+dir(2*ang)*u] = whatever[A,B]; for k = 2 upto 20: z[k] = nextPt(z[k-2],z[k-1]); maxNum := k; exitif xpart(z[k]) > TextWidth; endfor; \stopMPinitializations \startuseMPgraphic{foldUD}{num} numeric n; n := \MPvar{num}-1; G := z[n-1]; grayUD(n); \stopuseMPgraphic \startuseMPgraphic{dotLines}{num} numeric n; n := \MPvar{num}-1; linesUD(n); \stopuseMPgraphic \setupinteraction[state=start] \usemodule[animation] \starttext \startanimation[menu=yes] \dorecurse{7} { {\useMPgraphic{foldUD}{num=\recurselevel}} {\useMPgraphic{dotLines}{num=\recurselevel}} } \stopanimation \stoptext Best regards, Dalyoung

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Delivering the value of a variable in MetaFun to ConTeXt
by Jeong Dal 24 Jun '21

24 Jun '21

Hi, Is there a way to deliver the value of a variable in MetaFun to ConTeXt. For example, I want to do the following: \starttext \startMPcode numeric maxCount; % … some code maxCount := 10; \stopMPcode dorecurse{maxCount} {It is \recurselevel.\par} \stoptext Thank you for reading. Best regards, Dalyoung

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Setup output name from within ConTeXt document
by Pascal Pascali 23 Jun '21

23 Jun '21

Dear ConTeXt community, Is it possible to set the file name of the output from within the document? I can do it on the command line by adding --result="CustomName.pdf", but I'd need to do it according to certain variables in the content of the file itself... Setupinteraction[title="CustomName.pdf"] will just set the internal pdf name, not the file system name. Thank you for your help! Best regards, Pascal

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rtl fontfallback family issue?
by Alan Bowen 23 Jun '21

23 Jun '21

With the latest LMTX standalone (ConTeXt ver: 2021.06.18) the Syriac text is not printed. \setupdirections[bidi=global, method=unicode] \definefontfeature [syriac] [syriac] [language=dflt, script=syrc] \definefallbackfamily[mainface][rm][Estrangelo Edessa] [range={syriac}, features=syriac] \definefontfamily[mainface][STIX Two Text] \setupbodyfont[mainface, 18pt] \starttext Syriac { ܐܝܟ ܟܝܢܐ ܕܐܐܪܣ ܡܲܥܕܢܘܬܗܘܢ ܘܡܲܥܒܿܕܝܢ ܩܪ̈ܒܐ ܘܚܣܡܐ ܠܗܠܝܢ } \stoptext The same is true if I use \def\Syr{\definedfont[name:estrangeloedessa*syriac]} and insert \Syr before the Syriac text. I have the same issue with my Arabic font fallback but not with my Greek font fallback. Alan

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splitting tables from csv with first row as header
by Jan U. Hasecke 23 Jun '21

23 Jun '21

Hi all, I have this sample: \usemodule[database] \setuppapersize [A6] \setupTABLE [split=yes, header=repeat] \defineseparatedlist [test] [separator={;}, % tab before=\bTABLE,after=\eTABLE, first=\bTR,last=\eTR, left=\bTD,right=\eTD] \starttext \processdatabasefile[test][test.csv] \stoptext A test.csv is attached. The table splits but no header is repeated. I guess I have to define that the first row in the file is the header. How to achieve this? TIA juh

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