September 2021 - ntg-context - NTG Mailing Lists

update lmtx
by Hans Hagen 03 Sep '21

03 Sep '21

Hi, The end of the week update provides: \starttext \startTEXpage[offset=10pt] \starttabulate[|c|c|c|] \NC 1 \NC second column \NC third column \NC \NR \NC 2 \NC second \NC third \NC \NR \NC 3 r \NS[1][r]second & third \NC \NR \NC 3 c \NS[1][c]second & third \NC \NR \NC 3 l \NS[1][l]second & third \NC \NR \stoptabulate \stopTEXpage \stoptext where \NS means that there will be a span over columns (I needed such a span fro a manual but it only covers simple cases). There is also a new lowlevel manual, this time on marks (aka markings), think of running headers and so. I'm considering replacing the marking code by new code that I already have one my machine. In mkiv we;ve always used a more powerful alternative for the marks that than what luatex and friends provide but in luametatex I added a few of the missing pieces to the engine in addition to what already what there for a while. But I need Wolfgang to go over the code in order to identify possible side effects first. Hans ps. Because Dutch telecom (who so far took over all the providers we ever had so we had to change a few times) now completely quits web services we need to switch provider (again; so much for synergy) so the upcoming week there might be glitches in accessing the installer (we don't fallback on the garden yet). ----------------------------------------------------------------- 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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metafun doesn't compile \root 3 \of 2
by fv leung 03 Sep '21

03 Sep '21

\starttext \m{\root3\of2} \stoptext works. But \starttext \startMPcode label("\m{\root3\of2}", origin); \stopMPcode \stoptext doesn't. Running `LuaMetaTeX' on `trial' with ``/home/fvleung/ConTeXt/tex/texmf-linux-64/bin/mtxrun --autogenerate --script context trial.tex'' resolvers | formats | executing runner 'run luametatex format': /home/fvleung/ConTeXt/tex/texmf-linux-64/bin/luametatex --jobname="trial" --fmt=/home/fvleung/ConTeXt/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luametatex/cont-en.fmt --lua=/home/fvleung/ConTeXt/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luametatex/cont-en.lui cont-yes.mkiv --c:currentrun=1 --c:fulljobname="./trial.tex" --c:input="./trial.tex" --c:kindofrun=1 --c:maxnofruns=9 --c:texmfbinpath="/home/fvleung/ConTeXt/tex/texmf-linux-64/bin" open source > level 1, order 1, name 'cont-yes.mkiv' fonts > beware: no fonts are loaded yet, using 'lm mono' in box system > system > ConTeXt ver: 2021.07.27 19:27 LMTX fmt: 2021.7.28 int: english/english system > system > 'cont-new.mkxl' loaded open source > level 2, order 2, name '/home/fvleung/ConTeXt/tex/texmf-context/tex/context/base/mkxl/cont-new.mkxl' system > beware: some patches loaded from cont-new.mkiv close source > level 2, order 2, name '/home/fvleung/ConTeXt/tex/texmf-context/tex/context/base/mkxl/cont-new.mkxl' system > files > jobname './trial', input './trial.tex', result './trial' fonts > latin modern fonts are not preloaded languages > language 'en' is active open source > level 2, order 3, name './trial.tex' fonts > preloading latin modern fonts (second stage) fonts > 'fallback modern-designsize rm 12pt' is loaded 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' metapost > trace > This is MPLIB for LuaMetaTeX, version 3.11, running in scaled mode. metapost > trace > metapost > trace > loading metafun for lmtx, including the plain 1.004 base definitions metapost > trace > tex error > tex error on line 7 in file ./trial.tex: Argument of \root has an extra } 32\normalstopimath \fi <inserted text> \par <to be read again> } <lua output> } <local> \global \setbox \mptextbox \hbox {\clf_mptexttoks } <inserted text> [[special cmd: end local call]] <to be read again> \relax ... <line 4.5> \stopMPcode 1 \starttext 2 3 \startMPcode 4 label("\m{\root3\of2}", origin); 5 \stopMPcode 6 7 >> \stoptext 8 I've run across a '}' that doesn't seem to match anything. For example, '\def\a#1{...}' and '\a}' would produce this error. The '\par' that I've just inserted will cause me to report a runaway argument that might be the root of the problem. mtx-context | fatal error: return code: 256 TeX Output exited abnormally with code 1 at Fri Sep 3 17:44:19

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"*.jpg is bugged", previously working
by Henning Hraban Ramm 02 Sep '21

02 Sep '21

Hi again, was something changed WRT JPEG images? Since a few versions some images that used to work are denied with the error message "... is bugged". Maybe there *is* something wrong with them, but I don’t see a problem. "file" gives: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=12, height=3408, bps=0, PhotometricIntepretation=RGB, orientation=upper-left, width=2368], baseline, precision 8, 607x420, components 3 JPEG image data, JFIF standard 1.01, resolution (DPI), density 72x72, segment length 16, Exif Standard: [TIFF image data, big-endian, direntries=9, manufacturer=FLIR Systems AB, model=FLIR ONE Pro, orientation=upper-left, xresolution=152, yresolution=160, resolutionunit=2, software=Common_dll v1.0.0b1, datetime=2021:08:03 15:28:27], baseline, precision 8, 640x480, components 3 The latter is one of Harald’s infrared pictures. I can send them off-list, if you like. Hraban

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line numbering restarts every page
by Henning Hraban Ramm 01 Sep '21

01 Sep '21

Hi again, if a "typing" environment with line numbering goes over a page break, the line numbers start at 1 again on the new page. It doesn’t happen with \start/stoplinenumbering. MWE: \setuptyping[ numbering=file, ] \setuppaper[A5] \setupbodyfont[18pt] \starttext \startbuffer Li Europan lingues es membres del sam familie. Lor separat existentie es un myth. Por scientie, musica, sport etc, litot Europa usa li sam vocabular. Li lingues differe solmen in li grammatica, li pronunciation e li plu commun vocabules. Omnicos directe al desirabilite de un nov lingua franca: On refusa continuar payar custosi traductores. At solmen va esser necessi far uniform grammatica, pronunciation e plu sommun paroles. Ma quande lingues coalesce, li grammatica del resultant lingue es plu simplic e regulari quam ti del coalescent lingues. Li nov lingua franca va esser plu simplic e regulari quam li existent Europan lingues. \stopbuffer \dorecurse{10}{ \samplefile{knuth} \typebuffer } \stoptext Hraban

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MetaPost Examples
by Henning Hraban Ramm 01 Sep '21

01 Sep '21

Hi, I’m trying to “translate” the documentation of “fiziko”* from LaTeX to ConTeXt and would like to avoid the doubling of MP code like: \startMP path p; p := (0,0){dir(30)}..(5cm, 0)..{dir(30)}(10cm, 0); draw brush (p)(2minStrokeWidth*sin(offsetPathLength*pi)); \stopMP \startMPcode path p; p := (0,0){dir(30)}..(5cm, 0)..{dir(30)}(10cm, 0); draw brush (p)(2minStrokeWidth*sin(offsetPathLength*pi)); \stopMPcode I’m quite sure there’s a possibility with buffers, but how? \startbuffer path p; p := (0,0){dir(30)}..(5cm, 0)..{dir(30)}(10cm, 0); draw brush (p)(2minStrokeWidth*sin(offsetPathLength*pi)); \stopbuffer \typebuffer ... and then how do I get the MP graphic? Hraban *) https://github.com/jemmybutton/fiziko

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Incorrect rendering in Devanagari forms in some fonts
by kauśika cittūr 01 Sep '21

01 Sep '21

Dear All, I have encountered a strange problem using certain Devanagari fonts for the Sanskrit languagein ConTeXt, wherein the rakaar ligatures are not rendered properly in some glyphs/conjuncts. The problem is not too easy to describe so please pardon this long email. The fonts I am using are as follows: • Shobhika – https://github.com/Sandhi-IITBombay/Shobhika • Murty Sanskrit – https://murtylibrary.com/mcli-fonts.php I had previously posted about this issue on TeX SE and Ulrike Fischer was kind enough to suggest that the problem might have something to do with the font rendering (since I have no issues in XeLaTeX (using Harfbuzz)): https://tex.stackexchange.com/questions/612634/devanagari-forms-in-context-… My ConTeXt (LMTX) version is: 2021.08.30 19:56 I am using the following typescript for Murty: \starttypescript [serif] [murty] \definefontsynonym [Serif] [name:murtysanskritregular] [features=devanagari-two] \stoptypescript \starttypescript [murty] \definetypeface [murty] [rm] [serif] [murty] [default] \stoptypescript and the following for Shobhika: \starttypescript [serif] [shobhika] \definefontsynonym [Serif] [name:shobhikaregular] [features=devanagari-two] \definefontsynonym [SerifBold] [name:shobhikabold] [features=devanagari-two] \stoptypescript \starttypescript [shobhika] \definetypeface [shobhika] [rm] [serif] [shobhika] \stoptypescript Below is the test file I am using to demonstrate the problem: \setupbodyfont[shobhika] \starttext \startcolumns ट्रा ट्रि ट्री ट्रु द्रू ट्रे ट्रै ट्रो ट्रौ ठ्रा ठ्रि ठ्री ठ्रु ठ्रू ठ्रे ठ्रै ठ्रो ठ्रौ ड्रा ड्रि ड्री ड्रु ड्रू ड्रे ड्रै ड्रो ड्रौ ढ्रा ढ्रि ढ्री ढ्रु ढ्रू ढ्रे ढ्रै ढ्रो ढ्रौ छ्रा छ्रि छ्री छ्रु छ्रू छ्रे छ्रै छ्रो छ्रौ \column क्र ख्र ग्र घ्र ण्र च्र छ्र ज्र झ्र ञ्र च्रे छ्रे ज्रे झ्रे ञ्रे त्रे थ्रे द्रे ध्रे न्रे प्र फ्र ब्र भ्र म्र य्र ल्र व्र स्र श्र ष्र ह्र \stopcolumns \stoptext When I use the 'devanagari-two' feature set, which sets the script tag to 'dev2', the rakaar forms (provided by the features 'rkrf=yes' and 'blwf=yes') do not render properly for some glyphs, namely the glyphs in the right column, enclosed in a red rectangle in the file 'devanagari-two-forms-shobhika.png' attached in the Drive folder here. When I switch to using the 'devanagari-one' feature set (in the foregoing typescript definitions), which sets the script tag to 'deva', the rakaar forms in the left column are rendered incorrectly in the file 'devanagari-one-forms-shobhika.png' attached in the Drive folder here. Analogous problems occur with the Murty font. Further, in the Murty font, one other conjunct, namely त् +‌ त does not render properly. I have highlighted this in the file 'murty-conjuct.png'. The sample images demonstrating the issues are available in the following public Google Drive folder: https://drive.google.com/drive/folders/1aOmPKqBzB5usVvT9g-Bxk87exyiQn7ax I must mention once again that I have no such problems using either of these fonts in XeLaTeX. What I am noticing is that this problem only occurs with consonant forms that have a 'circular base', i.e., have no danda (the vertical line) next to the character. For what it is worth, I have noticed also that I am able to 'circumvent' this issue if I write छ्र‌ +‌ ZWS + Devanagari vowel sign where ZWS is the zero-width space U+200B. Unfortunately, this quickly becomes very untenable in large documents. Since I was new to ConTeXt I did not venture to ask earlier on since I had not read much of the documentaion. Now, after having read quite a bit, I have mustered up the courage to ask here. As a stop-gap solution, I defined another font alternative with \definefontalternative[rk] and used that with a font synonym using 'devanagari-two' where necessary. I have completely migrated (away from (Xe)LaTeX )to ConTeXt for all my university work which is in English with lots of mathematics. I am by no means an expert but I have learned very much about ConTeXt by reading the excellent wiki, documentation and mailing list. I have no issues using ConTeXt on an everyday basis for my English-language based work. It is only when I tried to use it for my work in Indian-languages that I ran into this issue. I request your kind help in this matter. I really want to be able to use ConTeXt for these Indic works. I will be grateful for any help and/or guidance. Many thanks, kauśika

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Vector Brushes for MetaFun?
by Henning Hraban Ramm 01 Sep '21

01 Sep '21

Hi, since Jacob started the pony mode, here’s one I’d like to ride: MetaPost pens are constant, i.e. they never change over the length of a path. Commercial vector graphics apps have “vector brushes”, e.g. Adobe Fresco: https://helpx.adobe.com/fresco/using/vector-brushes.html The page nicely shows the necessary variables. In Inkscape you can combine “brush images” like https://publicdomainvectors.org/en/free-clipart/Paintbrushes-for-Inkscape/8… with pen shapes: https://logosbynick.com/custom-brushes-in-inkscape/ This stretches the whole shape over the path – not perfect but good enough (and the same what e.g. “my” Affinity Designer does). (https://affinity.serif.com/designer/) Is this possible with MetaFun, i.e. use a closed path and distort/stretch it along an open path? If, how? Hraban

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Re: [NTG-context] No formula in the pdf (Ursula Hermann)
by Thierry Horsin 01 Sep '21

01 Sep '21

Hi Ursula, I tried your formula. The reason might be because you have two \starttext... Thierry

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Passing colors to Metafun and TeX's bitmapimage macros
by Jairo A. del Rio 01 Sep '21

01 Sep '21

Hi, list! I want to know if there's a handy way to pass predefined colors, either RGB or CMYK, e.g. those in svg or crayola, to Metafun's bitmapimage. Say, something like: \startMPpage % svg's gold definition draw bitmapimage(2, 2, "ffd700 ffd700 ffd700 000000") scaled 3cm; \stopMPpage using "gold" instead of its definition so that I can set bitmap image colors by name rather than numbers. In a similar vein, I wonder if something analogous is possible for ConTeXt's \bitmapimage macro. Thank you in advance. Cordially, Jairo

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No formula in the pdf
by Ursula Hermann 01 Sep '21

01 Sep '21

Dear List I have the following example. \setuppapersize[A4] \mainlanguage[de] \starttext Wir können sogar die gesamte Matrix A über ihre Einträge mit Hilfe der Indizes definieren, indem wir schreiben \startformula A_{ij}=5i \stopformula \starttext Why is there no formula in the pdf? And is that right with A{ij} After compiling i get the following Command Line: context.exe --synctex=-1 "Example1.tex" Startup Folder: C:\Users\Administrator\Documents\My Documents resolvers | formats | executing runner 'run luatex format': C:/texlive/2020/bin/win32/luatex --jobname="Example1" --fmt=C:/texlive/2020/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9/formats/luatex/cont-en.fmt --lua=C:/texlive/2020/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9/formats/luatex/cont-en.lui cont-yes.mkiv --c:currentrun=1 --c:fulljobname="./Example1.tex" --c:input="./Example1.tex" --c:kindofrun=1 --c:maxnofruns=9 --c:synctex="-1" --c:texmfbinpath="C:/texlive/2020/bin/win32" This is LuaTeX, Version 1.12.0 (TeX Live 2020/W32TeX) system commands enabled. open source > level 1, order 1, name 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/cont-yes.mkiv' system > system > ConTeXt ver: 2020.03.10 14:44 MKIV beta fmt: 2021.1.18 int: english/english system > system > 'cont-new.mkiv' loaded open source > level 2, order 2, name 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/cont-new.mkiv' system > beware: some patches loaded from cont-new.mkiv close source > level 2, order 2, name 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/cont-new.mkiv' system > files > jobname 'Example1', input './Example1', result 'Example1' fonts > latin modern fonts are not preloaded languages > language 'en' is active system > synctex functionality is enabled, expect 5-10 pct runtime overhead! open source > level 2, order 3, name 'C:/Users/Administrator/Documents/My Documents/Example1.tex' modules > 'amsl' is not found fonts > preloading latin modern fonts (second stage) fonts > 'fallback modern-designsize rm 12pt' is loaded backend > xmp > using file 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/lpdf-pdx.xml' pages > flushing realpage 1, userpage 1, subpage 1 close source > level 2, order 3, name 'C:/Users/Administrator/Documents/My Documents/Example1.tex' close source > level 1, order 3, name 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/cont-yes.mkiv' mkiv lua stats > used config file: selfautoparent:/texmfcnf.lua;selfautoparent:/texmf-dist/web2c/texmfcnf.lua mkiv lua stats > used cache path: C:/texlive/2020/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9 mkiv lua stats > resource resolver: loadtime 0.165 seconds, 1 scans with scantime 0.003 seconds, 0 shared scans, 12 found files, scanned paths: C:/Users/Administrator/.texlive2020/texmf-config mkiv lua stats > stored bytecode data: 450 modules (0.395 sec), 93 tables (0.013 sec), 543 chunks (0.408 sec) mkiv lua stats > traced context: maxstack: 1398, freed: 0, unreachable: 1398 mkiv lua stats > cleaned up reserved nodes: 56 nodes, 9 lists of 442 mkiv lua stats > node memory usage: 11 attribute, 4 attribute_list, 1 glue, 51 glue_spec, 3 kern, 2 penalty, 2 temp, 2 user_defined mkiv lua stats > node list callback tasks: 8 unique task lists, 7 instances (re)created, 39 calls mkiv lua stats > synctex tracing: 2 referenced files, 4 files ignored, 5 objects flushed, logfile: Example1.synctex mkiv lua stats > driver time: 0.134 seconds mkiv lua stats > used backend: pdf (backend for directly generating pdf output) mkiv lua stats > jobdata time: 0.002 seconds saving, 0.001 seconds loading mkiv lua stats > callbacks: internal: 136, file: 144, direct: 2, late: 6, function 507, total: 795 mkiv lua stats > randomizer: resumed with value 0.087860107421875 mkiv lua stats > positions: 2 collected, 2 regular, 0 special mkiv lua stats > loaded tex modules: 1 requested, all missing (*-amsl) mkiv lua stats > result saved in file: Example1.pdf, compresslevel 3, objectcompresslevel 1 mkiv lua stats > loaded patterns: en::1, load time: 0.000 mkiv lua stats > loaded fonts: 2 files: latinmodern-math.otf, lmroman12-regular.otf mkiv lua stats > font engine: otf 3.111, afm 1.513, tfm 1.000, 7 instances, 3 shared in backend, 3 common vectors, 0 common hashes, load time 0.208 seconds mkiv lua stats > used platform: mswin, type: windows, binary subtree: bin mkiv lua stats > used engine: luatex version: 1.12, functionality level: 7306, banner: this is luatex, version 1.12.0 (tex live 2020/w32tex) mkiv lua stats > control sequences: 45874 of 65536 + 100000 mkiv lua stats > lua properties: engine: lua 5.3, used memory: 125 MB, ctx: 124 MB, max: unknown MB, hash chars: min(32,40), symbol mask: utf (τεχ) mkiv lua stats > runtime: 0.813 seconds, 1 processed pages, 1 shipped pages, 1.230 pages/second system | total runtime: 1.189 seconds _____________________________________________________________________ ConTeXt Compilation Report (Pages: 1) Errors: 0 Warnings: 0 Bad Boxes: 0 * Thanks for helping Uschi

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