- ntg-context - Mailing Lists

What is the ConTeXt way to handle this \vbox trick?
by Idris Samawi Hamid ادريس سماوي ح امد 09 May '21

09 May '21

Dear gang, Consider the following MWE (for a sequential multiple-choice exam), using some old and ugly TeX code: ======= \setupbodyfont[schola] \noheaderandfooterlines \setupwhitespace[big] \def\CHOICE#1#2{\leavevmode\vbox{\tabskip=0pt\everycr={} \halign{\strut\hfil##\hfil\cr#1\cr#2\cr}}} \starttext (Religion * Biology * Cosmology * Physics) is part of the subject matter of World Philosophies. (Religion * Biology * Cosmology * Physics) is part of the subject matter of World Philosophies. (\CHOICE{1}{Religion}\ * \CHOICE{X}{Biology} * \CHOICE{2}{Cosmology}\ * \CHOICE{X}{Physics}) is part of the subject matter of World Philosophies. \stoptext ======= Result is attached. Question: What is the most elegant ConTeXt way to get the same result as the above code, with equal or better control? Thank you in advance. Best wishes Idris -- Idris Samawi Hamid, Professor Department of Philosophy Colorado State University Fort Collins, CO 80512

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weird word breaking in Win64
by Pablo Rodriguez 08 May '21

08 May '21

Dear list, the following sample breaks some words not right in Win64 (I cannot reproduce it in Linux): \enabledirectives[fonts.injections.method=advance] \setuppapersize[A6] \definefontfamily[mainface][rm] [TeX Gyre Pagella] \setupbodyfont[mainface] \starttext \input zapf \stoptext Copying text from latest Acrobat Reader DC, I get: Coming back to the use of typefaces in electronic publishing: many of the new typog raphers receive their knowledge and infor mation about the rules of typog raphy from books, from com puter mag azines or the instruction manuals which they get with the purchase of a PC or software. There is not so much basic instruction, as of now, as there was in the old days, showing the differences between good and bad typographic design. Many people are just fascinated by their PC's tricks, and think that a widely--praised program, called up on the screen, will make everything automatic from now on. Lines 3-5 contain word breaks that make searching impossible. This seems to be added by fonts.injections.method=advance. Could anyone on Windows confirm this issue? Many thanks for your help, Pablo -- http://www.ousia.tk

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upcoming versions of lmtx
by Hans Hagen 07 May '21

07 May '21

Hi, With luametatex becoming more mature, it's time to get rid of some old code. For instance, we have lmt files that assume 5.4, but regular lua files should work for luajittex (5.2) and luatex (5.3). Most noticable are the lack of bitwise operators and integer devision in luajittex, but there are more details. Till now, part of this problem is deals with by using functions that can actually be seen as macros that can are optimized when the format is made (kind of c-ish). It's not pretty, but works and probably no one ever noticed it. That mechanism will probably stay (for the fun of it) but the less it's used for creating the format the better. Another complication is that we use mtxrun for both running luatex and luametatex so there we need to be friendly to all three engines. But ... eventually luametatex will be the stub for also luatex and then mtxrun can become 5.4+ (the --luatex flag already works that way). An alternative is that we have mtxrun.lmt as well as mtxrun.lua but why bother. I also need to keep in mind that there are users of the font code that expect it to work with luajittex but that can be dealt with by splitting files. By splitting modules in lua and lmt variants we can tune for luametatex so that will happen anyway (less code, no engine specific sections, again a smaller format file, etc). All these adaptations have no functional consequences but of course there can be temporary hickups because of some oversight. At the engine level there is also some occasional cleanup, like replacing some left-over low level 5.2/5.3 lua api things by 5.4 but that's kind of ongoing (as lua progresses). In principle users should not notice such changes, just like probably no one noticed that we now use a different zip library (in the beginning some high speed variants were tested too but it's not that critical and I just don't want architecture dependencies that complicate a build and can influence stability). I still try to minimize the code base and dependencies, although I admit that sometimes stuff gets added (like the more efficient memory allocator). But my target max binary size of 3MB (less with link time optimization and related stripping) and fast compilation goals are still met. 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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Hyphen collapsing
by Thangalin 07 May '21

07 May '21

Not sure if this is a regression: % SOF \nohyphencollapsing \setuphead[chapter][align={nothyphenated}] \starttext \chapter{Such --- Emdashery} \stoptext % EOF Expected: No collapsed hyphens. Actual: Hyphens are collapsed. Workaround: Remove the nothyphenated option or insert \nohyphencollapsing into the \chapter command. Is there another way to prevent collapsing hyphens with a single setting that applies to the entire document? The hyphens did not collapse in the previous version. Current version: 2021.05.06

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very long hanging caption
by Jano Kula 07 May '21

07 May '21

Dear list, having images with very long captions I'd like captions to be wrapped around the figures. I would guess hang=yes parameter could do so, but not in my case. ---------------- text of | | the caption | | which is ---------------- much longer than the height of the image and should be wrapped around the image The second question is how to change the distance between image and the caption, distance parameter has no effect. MkIV, because footnotes in columns are needed (not in lmtx, yet). % macros=mkiv \setupcaption[ number=no, hang=yes, align={nothyphenated,flushleft}, distance=4mm, location=righthanging] \startbuffer[caption] \dorecurse{60}{very long caption } \stopbuffer \starttext \startplacefigure[title={\getbuffer[caption]}] \externalfigure[cow][height=40mm,width=80mm] \stopplacefigure \stoptext Thank you, Jano

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Bug with OpenBSD 6.9 amd64?
by Damien Thiriet 07 May '21

07 May '21

Hi, I have just upgraded my LMTX install to OpenBSD 6.9. Unfortunately, my first context run aborted with this error message /usr/local/context/tex/texmf-openbsd6.9-amd64/bin/mtxrun[1]: syntax error: `newline' unexpected I tried mtxrun --generate and ended with alomst the same error message, as I could have expected /usr/local/context/tex/texmf-openbsd6.9-amd64/bin/mtxrun[1]: syntax error: `newline' unexpected I wiped the cache, then suppressed it, didn't change anything. Which informations might be helpful to solve this problem? Best regards, Damien Thiriet

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SVG transparent stroke shown
by Thangalin 07 May '21

07 May '21

Hi again! % SOF\startbuffer[svg] <svg width="247.038" height="208.251"><path fill="#fff" stroke="transparent" d="M10 146.188V10h165.278v136.188z"/><path fill="#eef4d7" stroke="#2e2e2e" d="M123.856 44.896h-77v62h77z"/></svg> \stopbuffer \starttext \placefigure{}{\includesvgbuffer[svg][conversion=mp]} \stoptext % EOF Expected: No border around the outer white box, border around the inner green box. Actual: Border around both boxes. Version: 2021.05.06 Additional details: The SVG is generated using GraphViz, which adds a white box as the background with a transparent border. The GraphViz is being invoked over a rest API. Even if the binary has a setting to change the border colour, that setting probably isn't accessible via HTTP POST.

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Double-sided layer
by Huseyin Özoguz 06 May '21

06 May '21

Hello context-community, I have an image as a layer and want it to place on every page of a book with some offset. My minexample: \setlayer[mybg] [hoffset=2cm, voffset=0.2cm, doublesided=yes] {\framed[frame=off, width=2cm, height=1cm]{\externalfigure[bilder_bearbeitet_png/32.png][width=\textwidth]}} That works in principle, but I want the hoffset to be relative to the cutspace/backspace: different on right and left page, such that the layer is set equally on every page relative to the textbody. In the example above I use "doublesided=yes", but that has no effect. How to achieve proper double-sided behavior? Thank you. Huseyin

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Bug in \framed and \inframed
by Johann Birnick 06 May '21

06 May '21

There is a bug with \framed and related commands: If this is the first object in a line, a linebreak is inserted! See the following example: \starttext This \inframed{works} fine. \inframed{But} this not. \stoptext Thank you, Johann

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A Bug in lmt_shade
by Keith McKay 06 May '21

06 May '21

Hi all, I think a bug has appeared in lmt_shade in the latest upload. MWE below. Thanks Keith McKay %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \setuppapersize[A4,landscape][A4,landscape] \starttext \startMPpage StartPage; width := PaperWidth ; height := PaperHeight ; unit := cm ; definecolor [ name = "MyColor1", r = 0.781, g = 0.5, b = 0.5 ] ; definecolor [ name = "MyColor3", r = 1, g = 1, b = 0.7983 ] ; draw lmt_shade [ path = unitsquare xscaled width yscaled height, direction = "up", alternative = "linear", colors = { "MyColor1", "MyColor3" }, ] ; StopPage; \stopMPpage \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%% %%% Console Output %%% system > system > ConTeXt ver: 2021.05.05 19:29 LMTX fmt: 2021.5.6 int: english/english system > < snip > metapost > initializing instance 'metafun:1' using format 'metafun' and method 'default' metapost > loading 'metafun' as 'metafun.mpxl' using method 'default' metapost > initializing number mode 'scaled' metafun > log > metafun > log > error: An expression can't begin with 'right delimiter' metafun > log > metapost > log > <inserted text> metapost > log > 0 metapost > log > <to be read again> metapost > log > ) metapost > log > <argument> ...enter_b,alternative,s;string.color_a,color_b,alternative,s;pair.center_a,center_b;alternative:=getparameter"alternative";mfun_with_shade_method_analyze(getparameter"path") metapost > log > ;domain_min:... metapost > log > image->begingroup.save.currentpicture;picture.currentpicture;currentpicture:=nullpicture;(TEXT3) metapost > log > ;currentpicture.if.str(SUFFIX2)<>"":shifted(mfun_labxf(SUFFIX2)*lrcorner.p+mfun_labyf(SUFFIX2)*ulcorn... metapost > log > lmt_do_shade->...ve="circular":draw.fullcircle.scaled(radius_a)shifted.center_a.dashed.evenly;draw.fullcircle.scaled(factor*radius_b)shifted-center_b.dashed.evenly;fi.fi.popparameters;) metapost > log > endgroup metapost > log > <scantokens> lmt_do_shade metapost > log > metapost > log > <*> ...3", r = 1, g = 1, b = 0.7983 ] ; draw lmt_shade [ path = unitsquare xscaled width yscaled height, direction = "up", alternative = "linear", colors = { "MyColor1", "MyColor3" }, ] metafun > log > metafun > log > I'm afraid I need some sort of value in order to continue, so I've tentatively inserted '0'. metafun > log > metapost > log > ; StopPage; ; metapost > log >

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