August 2020 - ntg-context - NTG Mailing Lists

Chapter number with Luametafun
by Fabrice Couvreur 18 Aug '20

18 Aug '20

Hello, How to get the number of the current chapter ? How to get the label "Chapitre" ? Thanks for your help. Fabrice %%% Begin example \mainlanguage[fr] \setcharacterspacing [frenchpunctuation] \setuplabeltext[fr][chapter=Chapitre~] \startuseMPgraphic{fun} definecolor[name="Mycolor", s = 0.85 ] draw lmt_outline [ text = "1", kind = "fillup", fillcolor = "Mycolor", rulethickness = 1, ] xsized 1cm; \stopuseMPgraphic \unexpanded\def\MyNumber#1{\useMPgraphic{fun}#1} \unexpanded\def\Title#1#2{\framed[frame=off,width=fit,align=flushleft] {#1\blank#2}} \setuphead[chapter] [style=\bfd, align={flushleft,broad}, command=\Title, textcommand=\MyNumber, numbercommand=\groupedcommand{}{\MyNumber}, number=no] \starttext \startchapter [title={First chapter}] \input knuth.tex \stopchapter \startchapter [title={Second chapter}] \input knuth.tex \stopchapter \stoptext %%% end example

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Index confusion with first entry
by Henning Hraban Ramm 18 Aug '20

18 Aug '20

Hi, my index of locations shows a strange problem: Hamburg 6, 12, 14, 24–25, 27, 31, 33, 35, 44, 46, 48, 57, 59, 64, 75, 79, 81, 93–94, 96, 102, 104–105, 108–110, 112, 116–118, 120, 121–125, 6, 126–135, 6, 137– 147, 149, 151–159, 161, 165, 168, 169–171, 174, 176, 178, 182, 207, 209, 211, 215–216, 219–220, 224, 240, 242–244, 291 Page 6 is mentioned two times out of order. The problem doesn’t show at other locations. The first index entry (p.6) is made by \startregister[locations][test]{Someplace}, second is Hamburg (single entry). If I replace Hamburg with another town, the problem moves. If I move the Hamburg entry in front of \startregister, it disappears! I.e. if the first index entry is set by \startregister, the subsequent entry gets confused. I tried to come up with a MWE, but couldn’t reproduce the problem in a simple example like \starttext \placeregister[index][criterium=all] \startregister[index][test]{Knuth} \input tufte \index{Donald} \page \input knuth \index{Donald} \page \stopregister[index][test] \input darwin \page \dorecurse{5}{ \input knuth \index{Knuth}\index{Donald} \page } \stoptext Hraban

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memoir-style chapter heading
by jbf 18 Aug '20

18 Aug '20

Am completely new to using Metafun, which I presume I would need to use to achieve a Hansen Memoir-style Chapter heading (chapter title overlayed on a large lightgray number). Of course, I am assuming I would need to use Metafun to create this... So my first question is to ask if I could achieve the same effect without Metafun? I have read through the Metafun manual, and I think I can understand how to overlay text on a graphic (MP), but it would be currently beyond me to draw numbers of the kind we find in, say, the Memoir examples. Has anyone created such an example? I was keenly looking for one in the manual and elsewhere, in terms of ConTeXt/Metafun commands, but could not find one. But I'd be quite prepared to 'have a go' at this, if I had some pointers of just where to start! I assume I would have to \defineoverlay[number] and then add text on top \framed (but without the frame borders). Am I at least correct about this? Julian

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Same counter for figures as theorems
by Tim Steenvoorden 18 Aug '20

18 Aug '20

Hi all, I’ve a text where chapters are numbered 1, 2, 3, … and sections 1.1, 1.2, 1.3, … Now I’d like all elements (figures, tables, examples, definitions, theorems, …) to be numbered consecutively prefixed by the chapter and section number, so 1.1.1, 1.1.2, 1.2.1, ... I’ve managed to change figure/table captions to do this by: \setupcaptions[ way=bysection, prefixsegments=chapter:section, ] And I’ve setup my enumerations by: \setupenumerations[ way=bysection, prefix=yes, prefixsegments=chapter:section, ] But how do I use the same counter for figures, tables, and all enumerations? Trying to share a counter with: \definecounter[object][ way=bysection, prefix=yes, prefixsegments=chapter:section, ] \setupenumerations[ counter=object, ] \setupcaptions[ counter=object, ] Results in enumerations numbered 1, 2, 3, ... instead of 1.1.1, 1.1.2, 1.1.3, … And figures and tables are still numbered in the default way. Cheers, Tim

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A dumb question about MetaFun
by Jairo A. del Rio 16 Aug '20

16 Aug '20

Hi list! A simple question: is there an equivalent of thetextext for a normal picture (an "image(draw ... ;)")? I want to move the center of a picture to an specific point, like this: \startMPpage draw thetextext("\tttf hello", origin) ; draw unitsquare scaled 1cm; \stopMPpage The "hello" is centered at the origin. I want to achieve the same result for pictures. I've seen such a command some time ago, but I've forgotten and I cannot find it again in documentation. Thanks and sorry for any inconvenience. Regards, Jairo :)

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reading a single element from XML
by Pablo Rodriguez 16 Aug '20

16 Aug '20

Dear list, I have the following sample: \startbuffer[demo] <html> <body> <div class="irrelevant"> This is Only a paragraph. This is another paragraph. This is another paragraph. This is another paragraph. This is another paragraph. </div> </body> </html> \stopbuffer \startxmlsetups xml:initialize \xmlsetsetup{#1}{*}{-} \xmlsetsetup{#1} {html|body|div|p} {xml:flush} \xmlsetsetup{#1} {html/**/span[@class='special']} {xml:special} \stopxmlsetups \xmlregistersetup{xml:initialize} \startxmlsetups xml:flush \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:special \bgroup\bfd\ssd\xmlflush{#1}\egroup \stopxmlsetups \starttext \xmlprocessbuffer{main}{demo}{} \stoptext How can I select only ? I mean, how can I have "Only" and nothing more in the output PDF document? I thought that lpath "html/**/span[@class='special']" would work, but I don’t know what I’m missing. Many thanks for your help, Pablo -- http://www.ousia.tk

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Missing graphic in MPpage when viewing in Apple MAC Preview or GIMP 2.10 but not Adobe
by Keith McKay 16 Aug '20

16 Aug '20

Dear List I have come across a problem which I don't think is due to ConTeXt but I'm hopping the great and the good of this list may be able to explain what is going on. The code below produces an MPpage with a shaded background and two graphics along with a line of outlined text. When I view in Adobe (or the output from TeXworks) I see everything as it should be. However, I wanted to convert the MPpage to a jpeg file and when I opened the pdf in either Apple MAC Preview or Gimp 2.10 the two graphics are missing, and I have no idea why. Could someone explain a way round this? Here is the code. Thanks Keith %%%%%%%%%%%%%%%%%%%%%%%%%% system > system > ConTeXt ver: 2020.07.29 18:36 LMTX fmt: 2020.7.29 int: english/english system > %%%%%%%%%%%%%%%%%%%%%%%%%%% \setuppapersize [A5, portrait] \usecolors[crayola] \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 14.8cm yscaled 21cm, direction = "up", alternative = "linear", colors = { "MyColor1", "MyColor3" }, ] ; z0 = (60,60); z1 = z0 rotated 120; z2 = z1 rotated 240; path carre; carre = z0--z1--z2--cycle; picture pic; pic := image( numeric d; d := 0.0005; for i=1 step -d until d: fill carre scaled i shifted (3.9cm,17cm) withcolor((1 + i)*(\MPcolor{VividTangerine})) ; fill carre rotated (45) scaled i shifted (3.9cm,17cm) withcolor((1 + i)*(\MPcolor{VividTangerine})) ; fill carre rotated (90) scaled i shifted (3.9cm,17cm) withcolor((1 + i)*(\MPcolor{VividTangerine})) ; fill carre rotated (135) scaled i shifted (3.9cm,17cm) withcolor((1 + i)*(\MPcolor{VividTangerine})) ; fill carre rotated (180) scaled i shifted (3.9cm,17cm) withcolor((1 + i)*(\MPcolor{VividTangerine})) ; fill carre rotated (225) scaled i shifted (3.9cm,17cm) withcolor((1 + i)*(\MPcolor{VividTangerine})) ; endfor;); draw pic rotatedaround(center pic, 270); draw pic rotatedaround(center pic, 90) shifted (7cm,-13cm) ; draw lmt_outline [ text = "Page 18" kind = "draw", drawcolor = "VividTangerine", ] xsized TextWidth shifted (1cm,7.67cm); StopPage; \stopMPpage \stoptext

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About documented code
by Jairo A. del Rio 16 Aug '20

16 Aug '20

Hi list! I have some questions about the template used by module documentation. When I apply context --extra=module t-mymodule.mkvi --autopdf I obtain a nice file, but, among other things, 1) the cover page seems to be a bit... greenish? So I want to know how to customize it, at least at a minimum, and 2) \showframe is enabled by default. How to disable it? Maybe 1) can answer 2) too. Thank you very much. Cordially, Jairo :)

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compilation error in LMTX
by Pablo Rodriguez 15 Aug '20

15 Aug '20

Dear list, compiling a huge XML document (output PDF > 1200 pages), I get the following error with latest current (2020.08.11 15:59): pages > flushing realpage 187, userpage 187, subpage 3 mtx-context | fatal error: return code: 139 Compilation failed. Some hints about what I cannot avoid considering a cryptic error message: 1. There is no previous warning when compiling previous pages. 1. The compulation error appears on the third run. 1. ConTeXt latest from 2020.08.07 23:37 compiles this just fine. Sorry, there is no minimal sample here. Any ideas about this? Or at least, any chances for the source that is breaking compilation? Many thanks for your help, Pablo -- http://www.ousia.tk

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\scantokens in luametatex
by Marcel Fabian Krüger 14 Aug '20

14 Aug '20

Hi, in the current luametatex upload, \scantokens (and also \scantextokens) behave odd: They seem to act like \detokenize, except that spaces get catcode other instead of catcode space: \starttext \edef\abc{\scantokens{\relax}} \abc \edef\abc{\scantextokens{\relax}} \abc \stoptext used to result in an empty output file but with luametatex, it writes \relax \relax to the output. \starttext \def\showsecond#1{\show} \edef\abc{\scantokens{a b}} \expandafter\showsecond\abc \edef\abc{\detokenize{a b}} \expandafter\showsecond\abc \stoptext prints > the character > blank space Best regard, Marcel Krüger

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