May 2023 - ntg-context - NTG Mailing Lists

Noto Emoji COLRv1
by Max Chernoff 24 May '23

24 May '23

Hi Hans, I tried using the code from [1] for Noto Emoji in COLRv1 format [2]: \startTEXpage \definefontfeature[colored][default][colr=9] \definedfont[Noto-COLRv1.ttf*colored] 🦆 % U+1F986 \stopTEXpage but ConTeXt gives the following error: fonts > otf loading > loading 'Noto-COLRv1.ttf', hash 'noto-colrv1' otf reader > table version 1 of 'colr' is partially supported for font Noto-COLRv1.ttf otf reader > unsupported colr type 2 paint format 0 otf reader > unsupported colr type 2 paint format %i otf reader > fatal error in file 'Noto-COLRv1.ttf': ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3575: table index is nil stack traceback: ...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2344: in metamethod 'newindex' ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3575: in metamethod 'index' ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3677: in metamethod 'index' ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3150: in upvalue 'getpaintoffset' ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3564: in field '?' ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3677: in metamethod 'index' ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3685: in local 'reader' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2089: in upvalue 'readtable' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2204: in upvalue 'readdata' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2257: in function <...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2240> [C]: in function 'xpcall' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2346: in upvalue 'loadfont' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2401: in field 'loadfont' ...ext/tex/texmf-context/tex/context/base/mkxl/font-otl.lmt:160: in field 'load' ...ext/tex/texmf-context/tex/context/base/mkxl/font-otl.lmt:624: in upvalue 'otftotfm' ...ext/tex/texmf-context/tex/context/base/mkxl/font-otl.lmt:652: in function <...ext/tex/texmf-context/tex/context/base/mkxl/font-otl.lmt:651> (...tail calls...) ...ext/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:362: in function <...ext/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:350> (...tail calls...) ...ext/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:465: in field 'read' ...ext/tex/texmf-context/tex/context/base/mkxl/font-ctx.lmt:1371: in function <...ext/tex/texmf-context/tex/context/base/mkxl/font-ctx.lmt:1228> (...tail calls...) fonts > otf loading > loading failed due to read error fonts > defining > forced type 'ttf' of 'Noto-COLRv1' not found fonts > defining > unable to define 'Noto-COLRv1.ttf' as 'thedefinedfont--0' system > print height forced to paper height system > print width forced to paper width fonts > checking > char 🦆 (U+1F986) in font 'LMRoman10-Regular' with id 1: missing >From what I can tell, the Lua code is trying to read past the end of font file. I tried debugging the error further, but this is well beyond my understanding. (Also, paintreaders[6--11] in font-dsp.lmt are missing "offset" in the function signature, and paintreaders itself is glboal. Maybe related?) I'm using the current latest (2023.05.08 17:39). Thanks, -- Max [1]: https://mailman.ntg.nl/pipermail/ntg-context/2022/107279.html [2]: https://github.com/googlefonts/noto-emoji/raw/main/fonts/Noto-COLRv1.ttf

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position in xmlfilter
by Hans van der Meer 22 May '23

22 May '23

I do not understand the behaviour of certain function is xml processing. My problem is finding the position of the current node, for example with <A><B><A> I would like to see the first <A> resulting in 1 and the second in 2. The result of some experiments: return=[\xmlfilter{#1}{../tag()}] returns the parent tag, in this case [setup] as expected return=[\xmlfilter{#1}{./tag()}] returns the tag, in this case [example] as expected return=[\xmlfilter{#1}{../position()}] returns [] i.e. returns nothing expecting a number return=[\xmlfilter{#1}{./position()}] returns [] i.e. returns nothing expecting a number return=[\xmlfilter{#1}{../index()}] returns [0] expecting a number larger than 0 return=[\xmlfilter{#1}{./index()}] returns [0] expecting a number larger than 0 dr. Hans van der Meer

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Layout with equal margins.
by Pawel Urbanski 22 May '23

22 May '23

Dear Friends, I played wih hte setup and read the posts on the list. Apparently the mechanism for setting different margins can be confusing at times. At least, it is for a beginner. I want to create 2 versions of my book: Version 1: Goes to printing with different inner and outer margins due to binding and so on, Version 2: Can be downloaded and the left and right margins are equal size. I want ot keep the 6x9 size of a page, which is: 432x648pt. The sum of margins in both cases is 120pt. It leaves 312pt for the text content. When I do hte following: \setuplayout[ alternative=doublesided, width=fit, height=fit, leftmargin=60pt, leftmargin=60pt, ...] The makeup width and text width is calculated as 472pt and the margin appears to be set just on one side. I set both cutspace and backspace to 0pt. I assumed that either value is a particular area of the page. Has any one of you handled such a case? I'll be very glad to get some directions. I can create a simple document with modes or documents to illustrate my case if needed... Thank you, Pawel

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FYI: created with LMTX
by Gerben Wierda 21 May '23

21 May '23

https://ea.rna.nl/archimate/free-archimate-overview-pdf/ <https://ea.rna.nl/archimate/free-archimate-overview-pdf/> The story at the end tells a bit about LMTX and how it was done (it's about 2500 lines of lua to parse the XML and produce the LMTX statements, and about 3500 lines of METAPOST/Metafun to produce the graphics). Gerben Wierda (LinkedIn <https://www.linkedin.com/in/gerbenwierda>, Mastodon <https://newsie.social/@gctwnl>) R&A IT Strategy <https://ea.rna.nl/> (main site) Book: Chess and the Art of Enterprise Architecture <https://ea.rna.nl/the-book/> Book: Mastering ArchiMate <https://ea.rna.nl/the-book-edition-iii/>

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SVG ViewBox figure battle
by Thangalin 20 May '23

20 May '23

Hi there! The following document contains SVG. Save the SVG as "problem.svg" and run the document through LMTX version 2023.05.08 17:39: % SOF \startbuffer[csvg] <svg viewBox="0 0 100 100" version="1.1"> <path d="M0 0h100v100H0z" /> <path fill="#2d514e" d="M 72.474,42.6 33.073,42.8 51.872,-26.7 Z" /> </svg> \stopbuffer \starttext % honours viewbox \placefigure[none]{}{\includesvgbuffer[csvg]} \page % dishonours viewbox \externalfigure[problem.svg] \stoptext % EOF The ViewBox is ignored when run through Inkscape. Is this because the --export-area-page option is not being passed when invoked? Given identical inputs, would it make sense for placefigure and externalfigure to produce identical results? Cheers!

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Inline framed verbatim text
by Jeroen 19 May '23

19 May '23

In order to get some inline framed verbatim text, I have in the past always used the following: \starttext This is an \inframed [frame=on, corner=00, radius=2mm,offset=-1.5pt] {\ttx \bf example} \stoptext Since this has come-up more and more often, I created the following: \define[1]\infr{ \inframed [frame=on, corner=00, radius=2mm,offset=-1.5pt]{#1}} \starttext This is an \infr{example} \stoptext This works fine except that I cannot get the text in verbatim/teletype. I have tried style=mono and style={\ttx \bf} but nothing seems to work. Thanks Jeroen

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Probably simple: using a variable for \switchtobodyfont size
by Gerben Wierda 19 May '23

19 May '23

I want to use a variable for a font size so I can set it based on language (as some translated texts have widely different sizes) This fails: %=========================== \newdimen\relationsFontSize \relationsFontSize=8pt \starttext \switchtobodyfont[\relationsFontSize] Hello, world! \stoptext %=========================== How can I use a variable to steer \switchtobodyfont size? Gerben Wierda (LinkedIn <https://www.linkedin.com/in/gerbenwierda>, Mastodon <https://newsie.social/@gctwnl>) R&A IT Strategy <https://ea.rna.nl/> (main site) Book: Chess and the Art of Enterprise Architecture <https://ea.rna.nl/the-book/> Book: Mastering ArchiMate <https://ea.rna.nl/the-book-edition-iii/>

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Replacer based on function rathen than tables
by Jairo A. del Rio 18 May '23

18 May '23

Hi, list. There's lang-rep.mkxl and lang-tra.mkxl in the distribution which allows replacing a list of words and applying transliteration, respectively. Both are based on tables. I want to know if there's a way to use a function instead, say local function nice(str) return str .. " is nice" end Thanks in advance. Best regards, Jairo

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\placeinitial inside \framed?
by Gerben Wierda 16 May '23

16 May '23

I'd like to use a drop cap inside a \framed, but it doesn't work. Minimal example: %========================== \starttext \setupinitial[n=2,text=Knuth]\placeinitial\input knuth \framed[align=flushleft]{\setupinitial[n=2,text=Knuth]\placeinitial\input knuth } \stoptext %========================== The first drop cap works, the second is empty. Gerben Wierda (LinkedIn <https://www.linkedin.com/in/gerbenwierda>, Mastodon <https://newsie.social/@gctwnl>) R&A IT Strategy <https://ea.rna.nl/> (main site) Book: Chess and the Art of Enterprise Architecture <https://ea.rna.nl/the-book/> Book: Mastering ArchiMate <https://ea.rna.nl/the-book-edition-iii/>

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Two columns of footnotes
by lynx＠polarcom.com 16 May '23

16 May '23

I own a commercially published book that has makes effective use of footnotes that are arranged in two columns on each page. Does anybody know how this can be set up within ConTeXt? MG

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