- ntg-context - Mailing Lists

Math functions not typeset inside MetaPost
by śrīrāma 20 Apr '22

20 Apr '22

Hi Hans, [I am sending this again since the previous mails regarding were sent during the weekend]. I am on the most recent upload of LMTX [2022.04.15 20:20]. However, when I try to use math functions inside MetaPost strings, the function is not typeset correctly. Please consider the following MWE: \starttext \startMPcode draw textext("\m{\max_i x_i}"); \stopMPcode \stoptext which produces the output attached here as an image. Instead of the mfunction maxᵢ xᵢ some form of the string mathfunctionhandlelabel is typeset. I tried to inspect \math_function_handle_label [math-ini] and also mp-mlib and mlib-pps but could not figure out what is going wrong. I wonder if there is a backslash missing somewhere. I am a little worried since I use MetaFun in conjunction with maths and could not figure out what the issue is. Please see the original post by Dalyoung here: https://mailman.ntg.nl/pipermail/ntg-context/2022/105462.html Please advise. Thank you, Sreeram

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Word wrap of 'part' titles
by Bruce Horrocks 19 Apr '22

19 Apr '22

In the MWE below the 'part' title is centred but on one line only and, because it is a long title, the beginning and end are lost off the sides of the page. If it were a 'chapter' title then I could insert '\\' to cause a line break at that point. However this does not seem to work for 'part'. Is there a way of making 'part' titles wrap the same way that 'chapter' titles do? % ---begin--- \define[2]\placePartTitle{\midaligned{#2}} \definehead [Part] [part] \setuphead[Part] [ placehead=yes, style={\tfd}, command=\placePartTitle, ] \starttext \startPart[title={A very long part title that needs to be wrapped manually}] Some body text \stopPart \stoptext %---end--- — Bruce Horrocks Hampshire, UK

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How to create a more human-readable syntax for displaying workbook activities?
by Joel 18 Apr '22

18 Apr '22

I am creating a student workbook. There are ~30 chapters, each containing ~20 activities, called "Activity A", "Activity B", and so on. The `workbook.tex` itself uses a recurse function, so it prints chapter 1-30. The reason I use this, is if I need to do a fast test of the code, I can compile a specific range of chapters, not the whole workbook. \define\activityA{} \define\activityB{} \dostepwiserecurse{1}{30}{1}{ \chapter{\recurselevel} \activityA \activityB } \activityA prints the workbook activity "Activity A". \activityB prints the workbook activity "Activity B". The problem comes in that some activities have varied versions. Just as an example, "Activity C might be a crossword puzzle in some chapters, but a word search in other chapters. My poor solution has been to use registercyclist: \define\altCa{print a crossword} \define[3]\altCb{print a word search} \registercyclelist{activityClist}{\altCa, \altCb{}{}{}, \altCb{}{}{}} \define\activityC{% \usecyclelist{activityClist} } This code works okay, but becomes broken if I try to change the page range in `dostepwiserecurse` when testing my code. The other problem is the syntax is super messy. Within this single line, tones of data is crammed in: \registercyclelist{activityClist}{\altCa, \altCb{}{}{}, \altCb{}{}{}} ...not only is it not easy to read which chapter gets which activity, I also have to fill in the {}{}{} with data, making it more difficult to read. How can I create a much cleaner, human-readable syntax for storing this? Is there some simpler way to tell ConTeXt Chapter 1 gets one variant, Chapter 2, 3, and 4 get another, etc.?

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placing (on) layers
by Henning Hraban Ramm 16 Apr '22

16 Apr '22

Hi again, I’m always struggling with putting stuff on layers, since these just never start where I’d expect them to, and the offsets changed a few times within the last years. Please explain how I should define a layer that covers the whole page, since the following MWE is wrong (the layer always starts below the first line): \useMPlibrary[dum] \setuppapersize[A5][A4] \setuplayout[ marking=on, location=middle, ] \definemeasure[Bleed][3mm] \definemeasure[MaxHeight][{\dimexpr\paperheight + 2\measure{Bleed}\relax}] \definemeasure[MaxWidth][{\dimexpr\paperwidth + 2\measure{Bleed}\relax}] \definelayer[papier][ preset=lefttop, %x=0mm,y=0mm, width=\paperwidth, height=\paperheight, ] \setupbackgrounds[paper][background=cover,state=start] \starttext \showframe TEST \setlayerframed[papier][ preset=lefttop, %x=-\measure{Bleed}, %y=-\measure{Bleed}, offset=overlay, %frame=off, width=\measure{MaxWidth}, height=\measure{MaxHeight}, ]{\externalfigure[dummy][ width=\measure{MaxWidth},height=\measure{MaxHeight} ]} \flushlayer[papier] \stoptext

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TeXworks on Linux
by Willi Egger 16 Apr '22

16 Apr '22

Good evening! Currently I am trying to test different editors on a Linux-box. — Tonight I installed TeXworks. Now I wanted to change the editor to use ConTeXt LMTX. I added in the tab “typesetting" the path to the executables in the TeX tree. Then I added funder editing the processing tools following the Wiki as a programme mtxrun and as parameters —script context $fullname. After restarting the application I get the error: “unknown script ‘mtx-base.lua' or ‘mtx-mtx-base.lua’” My question is, is there a user out there who knows how to fix this? Kind regards Willi

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<dc:language> to XMP info?
by Pablo Rodriguez 16 Apr '22

16 Apr '22

Hi Hans, I need to access the document language using Poppler’s GObject introspection. Right now, the only way to do that would be to have <dc:language> (https://raw.githubusercontent.com/adobe/XMP-Toolkit-SDK/main/docs/XMPSpecif…) in the XMP metadata included in the PDF file. Would it be possible to have <dc:language> included in the XMP metadata (besides other DC elements, such as author, title, description or format)? Many thanks for your help, Pablo

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Re: [NTG-context] right item marks for associative questions? (śrīrāma)
by Damien Thiriet 16 Apr '22

16 Apr '22

Hi, > In function 'ListeAleatoireGauche' calling startitemize as below should > help: > context.startitemize ({"8","packed","random"}, {align="righttoleft"}) > > Further, I think you might also need to put the entry into stream in a > group: > context.start() context.lefttoright(t[k]) context.stop() > > Sreeram Many thanks, this solved my problems. I understand context.startitemize() is designed to get several vectors as arguments, something I didn't thought about. Could you explain the whereabouts of calling to context.(start|stop)()? Some expansion stuff? In my MWE, only the first item was left-to-right. Best regards, Damien Thiriet

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$\sin \theta$ behave differently in metafun
by Jeong Dal 16 Apr '22

16 Apr '22

Dear all, I use $\sin \theta$ and $\cos \theta$ behave differently in text and in metafun. It works well sometime before but it doesn’t in metafun now. What is wrong in my example? Thank you for reading. Best regards, Dalyoung Here is a MWE. \startbuffer[pointCircle] numeric u; u:=1cm; pair A,B,C; draw fullcircle scaled 4u; A := dir(25)*2u; label.top(textext("$P=(\cos\theta, \sin\theta)$"), A); B := dir(-25)*2u; label.bot(textext("$Q=(\cos(-\theta), \sin(-\theta))$"), B); C := (xpart A, 0); label.lrt(textext("$A$"), C); label(textext("$O$"), origin); \stopbuffer \starttext I'd like use $\sin$ and $\cos$ in the metafun. But it shows strange text instead of $\sin$ and $\cos$. \processMPbuffer[pointCircle] \stoptext > 2022. 4. 13. 오전 11:09, ntg-context-request(a)ntg.nl 작성: > > Send ntg-context mailing list submissions to > ntg-context(a)ntg.nl > > To subscribe or unsubscribe via the World Wide Web, visit > https://mailman.ntg.nl/mailman/listinfo/ntg-context > or, via email, send a message with subject or body 'help' to > ntg-context-request(a)ntg.nl > > You can reach the person managing the list at > ntg-context-owner(a)ntg.nl > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of ntg-context digest..." > > > Today's Topics: > > 1. Re: Setting up zint on a mac with macOS Montery Version > 12.3.1 (Keith McKay) > 2. Re: fatal error in LMTX (Bruce Horrocks) > 3. Re: Setting up zint on a mac with macOS Montery Version > 12.3.1 (Bruce Horrocks) > 4. Re: Proper formatting of itemized bullets in ConTeXt (śrīrāma) > 5. Re: Proper formatting of itemized bullets in ConTeXt (śrīrāma) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 12 Apr 2022 21:04:50 +0100 > From: Keith McKay <mckaymeister(a)gmail.com> > To: Bruce Horrocks <ntg(a)scorecrow.com>, mailing list for ConTeXt users > <ntg-context(a)ntg.nl>, monty.luis(a)gmail.com > Subject: Re: [NTG-context] Setting up zint on a mac with macOS Montery > Version 12.3.1 > Message-ID: <475d96e6-0905-7d2d-a51d-84b06d340de9(a)gmail.com> > Content-Type: text/plain; charset="utf-8"; Format="flowed" > > Hi All > > I created the symbolic link as suggested by Bruce and Luis and still got the error message > > optional > unable to locate library 'libzint' > > in my text editor. I use TeXworks. However, I thought I would try running from the Terminal app and it worked. It found libzint and output the pdf with both barcodes and the qrcode. I have no idea why it works in the Terminal and not TexWorks, I'm guessing I have a path issue which I need to investigate. > > Notes > 1) My machine is a mac-mini-M1 with macos Monterey and I'm running the latest ConTeXt version > 2) Bruce noted that my Homebrew was installed in a non-standard location so I checked on the Hombrew website and it is installed in opt/homebrew for Apple Silicon i.e the M1 chip. Maybe Bruce's homebrew was installed on an earlier version. > > Thanks to Luis and Bruce for their suggestions. > Best Wishes > Keith McKay > > On 10/04/2022 22:26, Bruce Horrocks wrote: >> Hi Keith, >> >>> On 10 Apr 2022, at 14:49, Keith McKay via ntg-context<ntg-context(a)ntg.nl> wrote: >>> >>> Hi All >>> >>> I have been struggling today trying to setup and use the Barcode module zint in ConTeXt and failed. I have followed the instructions on the wiki (https://wiki.contextgarden.net/Barcodes ) but with some changes as follows. Which maybe why I failed. >>> >>> 1) I downloaded Zint using Homebrew since I'm using macOS, and installed it according to the instructions. >>> >>> >>> 2) Since I'm using LMTX I looked for the file libzint.dylib and found it in /opt/homebrew/Cellar/zint/2.10.0/lib . This is different from the path given on the wiki. The directory contained three files, two of which were aliases, libzint.2.10.dylib and libzint.dylib, and an exe file libzint.2.10.0.0.dylib >> You have Hombrew installed in a non-standard location. Mine is in /usr/local/Cellar with the executables linked into /usr/local/bin. >> >> But, assuming other Homebrew commands work when run from Terminal then you might still be okay. >> >>> 3) I created the path $TEXROOT/tex/texmf-osx-64/bin/lib/luametatex/zint and copied libzint.2.10.0.0.dylib into but replaced dylib with 'so' as suggested on the wiki instructions. So I basically added lib/luametatex/zint to texmf-osx-64/bin . >> "Yes" to creating the path but "no" to copying. Create a symbolic link instead. >> >> So, in Terminal: >> >> $ cd $TEXROOT/tex/texmf-osx-64/bin/lib/luametatex/zint >> >> # In my case I used the following: >> $ ln -s /usr/local/Cellar/zint/2.10.0/lib/libzint.dylib libzint.so >> >> # For you with Homebrew in a different location, try: >> $ ln -s /opt/homebrew/Cellar/zint/2.10.0/lib/libzint.dylib libzint.so >> >> Then steps 4 and 5 as below. I ran the MWE below: the ISBN worked, the ISBNX didn't, the QR code did. This is on Monterey. >> >>> 4) I ran mtxrun --generate to update the database. >>> >>> 5) I ran the MWE below but no barcode appeared. The console output shows: >>> >>> >>> modules > using user prefixed file 'libs-imp-zint' >>> modules > 'zint' is loaded >>> >>> however further down the output it gives: >>> >>> >>> optional > unable to locate library 'libzint' >>> >>> I have tried renaming libzint2.10.0.0.so to libzint.so, but still no barcode. Is their something I am missing? Tips or hints appreciated. >>> Best Wishes >>> Keith McKay >>> >>> %%%%%%%%%%%%%% MWE %%%%%%%% >>> \usemodule[zint] >>> \starttext >>> \barcode[alternative=isbn,text=9783865419026,width=4cm] >>> \barcode[alternative=isbnx, text=9783865419026, width=4cm] >>> \barcode[alternative=qrcode, text={https://wiki.contextgarden.net}, width=3cm] >>> \stoptext >> — >> Bruce Horrocks >> Hampshire, UK >> >

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new upload
by Hans Hagen 16 Apr '22

16 Apr '22

Hi, I uploaded a new lmtx. Apart from a experimental intersection feature in the mp library (and metafun, more will be revealed when MS an I are okay with it) there is not that much news. I decided to turn some test code into a mechanism which is illustrated below. Adaptive boxes are hboxes that act a bit like glue which means that when we hook in e.g. a graphic it can be made to adapt. We can add some more methods if needed so maybe you see other usage. The interface is rather lightweight and the overhead is quite resonable. Hans =================== \starttext \startMPdefinitions def TickTock = interim linecap := squared; save p ; path p ; p := fullsquare xysized(AdaptiveWidth,.9(AdaptiveHeight+AdaptiveDepth)) ; fill p withcolor AdaptiveColor ; draw bottomboundary (p enlarged (-AdaptiveThickness) ) withdashes (3*AdaptiveThickness) withpen pencircle scaled AdaptiveThickness withcolor white ; enddef ; \stopMPdefinitions \startsetups adaptive:test \setbox\usedadaptivebox\hbox to \usedadaptivewidth yoffset -.9\usedadaptivedepth \bgroup \hss \startMPcode TickTock ; \stopMPcode \hss \egroup \stopsetups \definecolor[adaptive:tick][.25(blue,green)] \definecolor[adaptive:tock][.75(blue,green)] \defineadaptive [tick] [setups=adaptive:test, color=adaptive:tick, foregroundcolor=white, foregroundstyle=\infofont, strut=yes] \defineadaptive [tock] [tick] [color=adaptive:tock] % with postprocessing \dorecurse{5}{ \dostepwiserecurse{1}{150}{1}{% this~#1.##1 is~#1.##1 test~#1.##1 \ifodd##1\relax \adaptivebox[tick]{\hss tick #1.##1\hss} \else \adaptivebox[tock]{\hss tock #1.##1\hss} \fi } \blank } \page % without postprocessing \dorecurse{5}{ \dostepwiserecurse{1}{150}{1}{% this~#1.##1 is~#1.##1 test~#1.##1 {\showboxes\adaptivebox[strut=yes,foregroundcolor=darkred]{\hss test #1.##1\hss}} } \blank } \page % with images % a weird one \setupexternalfigures [location={default,global}] \startsetups adaptive:test \setbox\usedadaptivebox\hbox to \usedadaptivewidth yoffset -\usedadaptivedepth \bgroup \externalfigure [cow.pdf] [width=\usedadaptivewidth, height=\dimexpr\usedadaptiveheight+\usedadaptivedepth\relax]% \egroup \stopsetups \dorecurse{5}{ \dostepwiserecurse{1}{150}{1}{% this~#1.##1 is~#1.##1 test~#1.##1 {\adaptivebox[strut=yes,setups=adaptive:test]{}} } \blank } \stoptext It actually uses an already present for a while low level engine feature that we introduced as part of the math processing update: \dorecurse {1000} {test \uleaders\ruledhbox{\hss#1\hss}\hskip2em minus 1em\ } Next on the todo is to move some experimental graphic trickery related to math (matrices) into the core but the interfacing needs some thought. 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] right item marks for associative questions?
by Damien Thiriet 15 Apr '22

15 Apr '22

> You can use different alignment settings to move the bullet points to > the right side of your lists. Thank you Wolfgang, this is exactly what I need. One more question: I am typesetting those questions in lua, because lua vectors were more convenient for reading the whole but I am not sure how should I pass the righttoleft option. I read the cld manual and my guess is I should use function() but looks like I lack some understanding of context proceeding. This is what I did so far \startluacode userdata = userdata or {} function ListeAleatoireGauche(t) context.startitemize {"8","packed","random"} for k=1,#t do context.startitem() context.lefttoright(t[k]) context.stopitem() end context.stopitemize() end function ListeAleatoireDroite(t) context.startitemize {"8","packed","random"} for k=1,#t do context.startitem() context(t[k]) context.stopitem() end context.stopitemize() end function QCMAssociatif(t,u) context.startxtable {"frame=no","columndistance=3cm"} context.startxrow() context.startxcell() ListeAleatoireGauche(t) context.stopxcell() context.startxcell() ListeAleatoireDroite(u) context.stopxcell() context.stopxrow() context.stopxtable() end \stopluacode \starttext \startluacode Author = {"Nietzsche","God"} Quote = {"God is dead","Nietzsche is Dead"} QCMAssociatif (Author,Quote) \stoptext Damien Thiriet

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