August 2021 - ntg-context - NTG Mailing Lists

lmtx update/t-vim (again)
by Benjamin Buchmuller 25 Aug '21

25 Aug '21

Hi, Thanks for having had a look into the t-vim. At least the document compiles fine (I get a PDF), although multiple complaints from the lua end when I use "$" or "#" in my source, for example #!/usr/bin/bash etc. culminating in Sorry, but I'm not programmed to handle this case; I'll just pretend that you didn''t ask for it. If you're in the wrong mode, you might be able to return to the right one by typing 'I}' or 'I$' or 'I\par'. Seems as if LMTX tried to interpret something literally here … Further, I get a lot of fonts > beware: no fonts are loaded yet, using 'lm mono' in box fonts > checking > char i (U+00069) in font '' with id 0: missing fonts > checking > char n (U+0006E) in font '' with id 0: missing warnings. Maybe some things need to be adjusted? (Second mail with another error in LMTX follows.) Cheers Benjamin > On Aug 20, 2021, at 12:00, ntg-context-request(a)ntg.nl wrote: > > Hi, > > Here are the highlights of todays update: > > - somewhat more compact tuc files, not for all documents, but it can accumulate; also less memory used then; i could bring down an extreme 2000 page 5 column doc tuc file down to 5% -- it was 70 MB; for the luametatex manual it reducec the tuc more than 30%; hard to tell if there will be an associated performance hit, but i'm sure thomas will complain if that's the case > > - more mp-tex-lua interfacing upgraded plus extra preliminary chapter for luametafun about extensions - for taco > > - a slightly more compact cache files for fonts with many (pseudo) ligatures; hopefully no side effects (nothing that can't be fixed fast if noted); quite probably no performance hit and maybe even some room for optimization (not done yet) > > - a split in the cache directory for luametatex so that we can more easilly experiment without interference (so, although the above works in mkiv it's not enabled there currently) > > - some minor things (also in the process of splitting the codebase) > > - no real changes in / additions to the luametatex binary (we're in cosmetics mode now) > > 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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new upload
by Hans Hagen 24 Aug '21

24 Aug '21

On 8/24/2021 6:12 PM, Bruce Horrocks wrote: > Thanks. I'll wait for your upload and try again. i uploaded new bins just for fun (yesterday i needed a distraction) i also added some basic mechanism for repeatable random numbers (i can add more if needed) (the usual tex / lua / mp interfaces) \starttext % \enabletrackers[system.randomizer.details] % empty == default \newrepeatablerandom\MyRandom {Welcome 2 America} \newrepeatablerandom\MyRandomN{\randomnumber{0}{1000}} \newrepeatablerandom\MyRandomM{\randomnumber{0}{1000}} \cldcontext{utilities.randomizer.getrepeatableseed()}\par \cldcontext{utilities.randomizer.getrepeatableseed("default")}\par \cldcontext{utilities.randomizer.getrepeatableseed("MyRandom")}\par \cldcontext{utilities.randomizer.getrepeatableseed("MyRandomN")}\par \cldcontext{utilities.randomizer.getrepeatableseed("MyRandomM")}\par \dorecurse{10}{\MyRandom\par} \startlinecorrection \startMPcode randomseed := repeatablerandom("MyRandom") ; draw image ( for i=1 upto 1000 : draw origin randomized 100 ; endfor ; ) withpen pencircle scaled 1 withcolor white withstacking 2 ; fill boundingbox currentpicture withcolor darkred withstacking 1 ; \stopMPcode \stoplinecorrection \startluacode context(utilities.randomizer.getrepeatableseed("MyRandom")) context.par() local rep = utilities.randomizer.getrepeatable("MyRandom") for i=1,5 do context(rep()) context.par() end \stopluacode \stoptext ----------------------------------------------------------------- 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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Place a logo at the bottom of the page with a layer
by Fabrice Couvreur 24 Aug '21

24 Aug '21

Hi, I want to insert a logo at the bottom of the page on the right on the first page, on the left on the second, on the right on the third ... With the key repeat=yes, the logo is always at the bottom right Thanks Fabrice \useMPlibrary[dum] \definelayer [MyLogo] [x=0mm, y=0mm, width=\paperwidth, height=\paperheight, repeat=yes] \setupbackgrounds[page][background=MyLogo] \setlayer [MyLogo] [hoffset=\dimexpr\textwidth+\backspace+\rightmargindistance\relax, voffset=\dimexpr\topspace+\textheight+\footerheight\relax] {\externalfigure[dum][width=\rightmarginwidth,height=\headerheight]} \showframe \starttext \dorecurse{20}{\samplefile{lorem}} \stoptext

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Something broke between 2021.07.23 and 2021.08.19
by Bruce Horrocks 24 Aug '21

24 Aug '21

I re-processed a previous issue of a journal and found that it no longer compiled. It worked fine in versions up to and including 2021.07.23 but fails by version 2021.08.19 19:48. It may have failed a little earlier than this - I don't always refresh every release. The error in the console log is: [...] open source > level 2, order 9, name 'covers/inside-front-cover.tex' tex error > tex error on line 24 in file covers/inside-front-cover.tex: lua error: registered function call [396]: ...-64/tex/texmf-context/tex/context/base/mkxl/anch-pos.lmt:1286: attempt to call a nil value (upvalue 'texgetparstate') stack traceback: ...-64/tex/texmf-context/tex/context/base/mkxl/anch-pos.lmt:1286: in function <...-64/tex/texmf-context/tex/context/base/mkxl/anch-pos.lmt:1262> (...tail calls...) [...] Unfortunately I can't create an MWE any smaller than a project with about 3 sub-directories and half a dozen files. I don't really want to post it all here but happy to send a zip to Hans. (When it works it only creates a two page PDF so 'minimal' in that sense.) Secondly, something a bit specific to Macos also broke for the latest version. Previously I had: \definefont [RPN] [Menlo*bold at 12pt] but had to change that to \definefont [RPN][file:Menlo.ttc at 12pt] to get it compile. I thought it was something odd about Menlo (which is a Macos system font) at first which is why I changed to using the name: syntax but when this other problem came up I realised it too had worked previously. — Bruce Horrocks Hampshire, UK

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Re: [NTG-context] Curiosity about math.random in LuaTeX
by Thierry Horsin 23 Aug '21

23 Aug '21

Hi everybody. I wonder how does math.random() work in context. I found that this subject was discussed more than ten years ago by Otared and Taco and Thomas. It is clear to me how to obtain new results upon typesetting the same file by changing the value of math.randomseed (with os.time()). If you don't change the seed, you get the same result upon each typesetting, and a seed is given in the .tuc file. For example I have this: ["randomseed"]=0x1.0741c18b8a4ep-6 How do I use (and is it possible to) this value to have the same result of math.random() upon typesetting another file (with a different name) ? I could provide a same fixed seed in both files, but for some reasons I would like to re-use some previous results of math.random() for which no seed was initially given in another .tex file. Thank you Thierry

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Bug with mathalignment and columns
by Jack Hill 23 Aug '21

23 Aug '21

Hi, When a mathalignment is started at the end of a multi-column page ConTeXt places it at the start of the previous second column instead of placing it on a new page. Here's my code to test: \starttext \startcolumns[n=4] \startluacode lorum = "Lorum ipsum dolor sit amet. " for i = 1, 98, 1 do context(lorum) end \stopluacode \startformula \startmathalignment[n=1] \NC y = ax \NR \NC a^2 + b^2 = c^2 \NR \NC x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \NR \stopmathalignment \stopformula \stopcolumns \stoptext Adding text after the formula seems to fix the issue, but that means I can't finish the page with a formula. It seems that it always places the formula at the top of the second column, regardless of how many columns there are. It also does this even if there are still empty columns (try changing 98 to 100 in the for loop). Jack

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lmtx update
by Benjamin Buchmuller 23 Aug '21

23 Aug '21

Hi, Here is another thing which worked previously for me: ConTeXt ver: 2021.07.30 00:57 LMTX fmt: 2021.8.8 int: english/english Now: ConTeXt ver: 2021.08.22 11:54 LMTX fmt: 2021.8.22 int: english/english Error: lua error: registered function call [396]: ...eXt/tex/texmf-context/tex/context/base/mkxl/anch-pos.lmt:1286: attempt to call a nil value (upvalue 'texgetparstate') stack traceback: ...eXt/tex/texmf-context/tex/context/base/mkxl/anch-pos.lmt:1286: in function <...eXt/tex/texmf-context/tex/context/base/mkxl/anch-pos.lmt:1262> (...tail calls...) 129 \NC \unit{0.88 angstrom} 130 \NC \unit{2.02 angstrom} 131 \NC \unit{2.03 angstrom} 132 \NC \unit{1.90 angstrom} 133 \NC \unit{4.99 angstrom} % rmsd #1/a:14-61 & backbone to #5/a:103-150 & backbone 134 \NC \unit{1.88 angstrom} 135 \NC \unit{5.20 angstrom} % rmsd #1/a:46-55 & backbone to #5/a:135-144 & backbone 136 \NC \NR 137 \HL 138 \stoptabulate The difficulty here is that when I copy the "faulty" part (my table) to another document (including all relevant defs etc.) it just works fine. So, I think it must have to do something with the placement of the float on the page. Any hints what has changed? Thanks! Benjamin > On Aug 20, 2021, at 12:00, ntg-context-request(a)ntg.nl wrote: > > lmtx update

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pgfplots module needs update from December
by Gavin 22 Aug '21

22 Aug '21

Hello list, The module pgfplots has a bug that produces an error for polar plots, and perhaps in other situations. tex error > tex error on line 20 in file ./chapter02-t-b-728d71c9823ff6bed735c6d6e1758718.tmp: Undefined control sequence <macro> \pgfplots@environment@polaraxis@ [#1]->\begin {axis}[#1,data cs=polar,axis type=polar] <line 3.20> ] This bug was described and fixed on the pgfplots GitHub repository in December (https://github.com/pgf-tikz/pgfplots/pull/382) I fixed the bug on my personal installation, but when I update the modules using the wiki instructions, the bug returns. In the LMTX installation, the file requiring the fix is: context-osx-64/tex/texmf-modules/generic/pgfplots/pgfplots.code.tex The fix is: Line 7928: change “\begin{axis}" to “\axis” Line 7934: change “\end{axis}" to “\endaxis” Is there anything I can do to aid in getting this fixed in the distribution? Thanks, Gavin

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Adjustment for header and footer
by Fabrice Couvreur 22 Aug '21

22 Aug '21

Hi, In the file below (not minimal, sorry!) I am using commands from Wolfgang in different threads. We can see that the top frame overflows into the text: how to correct this ? I would also like the top and bottom stroke to be adjusted to the width of the paper. Thanks Fabrice \useMPlibrary[dum] \setuplayout [topspace=1cm, backspace=3cm, cutspace=3cm, leftmargin=.75cm, leftmargindistance=.5cm, rightmargin=1.25cm, rightmargindistance=1cm, header=20mm, headerdistance=1cm, footer=20mm, footerdistance=1cm, width=middle, height=middle, location=middle] \setupbodyfont [newcomputermodern-book,11pt] \definefont [TextStyle] [SansBold*default sa 1.2] \defineframed [headerframed] [frame=off, height=fit, width=fit, ] \setupbackgrounds [header] [text] [frame=off,bottomframe=on,width=\widthpaper, framecolor=darkred,rulethickness=1pt] \setupbackgrounds [footer] [text] [frame=off,bottomframe=on,width=max, framecolor=darkred,rulethickness=1pt] \setupfootertexts [margin] [] [{\offset[y=\strutdp]{\externalfigure[dum][factor=max]}}] [] [{\offset[y=\strutdp]{\externalfigure[dum][factor=max]}}] \startsetups [headertext] \setupheadertexts [{ \startframed [headerframed] [foregroundstyle=TextStyle,align=middle] \getvariable{headertext}{location}\\ Spécialité mathématiques\\ \getvariable{headertext}{title} n\high{\tfxx \bf o}\,\getvariable{headertext}{number} \stopframed }] \setupheadertexts [{ \startframed [headerframed] [align=flushleft,foregroundstyle=\ssx] Lycée LA SALLE\\ Durée : \getvariable{headertext}{time}\\ \date[d=\getvariable{headertext}{day},m=\getvariable{headertext}{month},y=\getvariable{headertext}{year}] \stopframed }] [{ \startframed [headerframed] [align=flushright,foregroundstyle=\ssx] \externalfigure[dum] [factor=max] \stopframed }] \stopsetups \setvariable{headertext}{set}{\directsetup{headertext}} \setvariables [headertext] [title={Devoir maison}, number={2}, day={22}, month={08}, year={2021}, location={Terminale}, time={2 heures}] \starttext \samplefile{lorem} \stoptext

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Size of root symbol
by Bruce Horrocks 22 Aug '21

22 Aug '21

Is there a simple way to get both root signs in this MWE to be the same size? \starttext \startformula \sqrt[3]{4n} \ne \sqrt[3] {n} \stopformula \stoptext Thanks. — Bruce Horrocks Hampshire, UK

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