- ntg-context - Mailing Lists

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

2 3

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

3 3

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

3 4

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

4 4

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

1 0

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

1 0

WG: Adjust Grid to last line textheight
by denis.maier＠unibe.ch 23 Jun '21

23 Jun '21

Hi, I have to use grid typesetting and the grid has to be aligned to the last line of textheight. I have to replicate a layout made with Indesign where there seems to be a bit of additional spacing before the first line, whereas in ConTeXt that happens to be after the last line of the page (see attachment). Is that possible? I have already found the various grid snapping methods, but they seem to change how content is placed on the grid, not the placement of the grid itself. ======= \setuplayout[grid=yes] \showgrid \starttext \input knuth \stoptext ======= Best, Denis

1 1

endash emdash
by Jan U. Hasecke 23 Jun '21

23 Jun '21

Dear all, I am completely lost with a ridicously small problem. \starttext -- --- – \stoptext ConTeXt creates two endash rules and a very long dash in the middle, as I expected. But in my project I always get the plain source chars. I have no idea where I accidentally misconfigured this. For which commands shall I grep in my sources? TIA juh

2 2

Question about "streams" module
by MANUEL GONZALEZ SUAREZ 23 Jun '21

23 Jun '21

Hello everybody: My question is this: Is the "streams" module obsolete? If not, where can I find documentation on its use? Thanks M. González.

2 2

the --path option
by juh 22 Jun '21

22 Jun '21

Hi all, in my document I have to set a long path to my environment files: \environment ../../../hs.pub.context/env-fonts I wonder if I can use the option --path to set hs.pub.context as input folder to look for environment files. But I have no idea how to pass a "list" to this option as --help tells, and if it is the right option to achieve what I want. TIA Jan Ulrich Hasecke -- Autoren-Homepage: ......... http://literatur.hasecke.com Satiren & Essays: ......... http://www.sudelbuch.de Privater Blog: ............ http://www.hasecke.eu Netzliteratur-Projekt: .... http://www.generationenprojekt.de

1 1