February 2022 - ntg-context - NTG Mailing Lists

Suggestions for more math classes?
by Mikael Sundqvist 16 Feb '22

16 Feb '22

Dear all, While discussing spacing in math with Hans, we have come to the conclusion that to have better control and cleaner code there might be a good idea to have more math classes than the usual ones in TeX (ord, op, bin, rel, open, close, punct, inner (and some that we need not to think about)). So far, Hans has implemented frac and rad for fractions and radicals. The fractions has been a funny construction, being put inside empty delimiters, and so surrounded by the \nulldelimiterspace (which has been set to 1.2pt, independent of font size). Now we have better control of the spacing around fractions. Hans has opened up (even in the code) for the addition of more classes. The overall aim is to have a more coherent and logical way of typing math, without manual adding of (arbitrary) spaces every now and then. For example, we have always written \int f(x)\, dx to have a thin space between the closing parenthesis and the d in integrals. There will (most likely) be a differential class. Since the d might occur in other places in a formula with integrals, one cannot just simply give the letter d the differential class, and we are currently discussing the correct way for the user to type it. If you have suggestions, please let us hear! Some further suggestions by Hans are (see below for two more) 13 imaginary 14 differential 15 exponential 16 function Q1: Do you have any further suggestions on new classes (or comments on these)? It might be good to think about situations where you have felt that you need to insert manual spaces such as \, or \! to obtain a better result. I give one contribution: I asked a colleague to look in his TeX files for manual spaces, and he came up with several \, (usually before the d in integrals) but also with \!. This \! occurred mostly in fencing situations to have the exponent come a bit closer to the closing parenthesis. \left( \frac{x}{2} \right)^{\! k+2n} I have seen this in many places before, so no originality is claimed. Two more classes that we thought of are under and over. Say that we have a\overbar{bc}d. Should the spacing between a and the \overbar{bc} and the spacing between \overbar{bc} and d always be tight? If so, these might just be ord, and no new class needed (although one could argue for adding the classes now, set them up as ord, and thus being able to configure them according to taste/need). Q2: Do you have any real examples of constructions with \overbar, \underbar, \overbrace, ... or if you have any strong opinion, please raise your voice! /Mikael

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\hyphenatedurl in non-hyphenation context
by denis.maier＠unibe.ch 15 Feb '22

15 Feb '22

Hi, I have defined chapter headings set to nothyphenated. Yet, sometimes occur DOIs in these chapter headings, and I would obviously want those to be broken across lines. %%%%%%%%%%%%%%%%%%%%%%%%% \setuppapersize[A6] \setuphead[chapter][align={right,nothyphenated}] \starttext \chapter[title={asdf asdf \goto{\hyphenatedurl{https://doi.org/10.12345/12345.12345}}[url(https://doi.org/10.12345/12345.12345)]}] bla \stoptext %%%%%%%%%%%%%%%%%%%%%%%%% For now, I'm changing the definition to \setuphead[chapter][align={right,lesshyphenation}], but is there a way to disable hyphenation, but still break urls across lines? Best, Denis

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shapepar for ConTeXt
by Peter Münster 14 Feb '22

14 Feb '22

Hi, Is there something like shapepar (LaTeX-package) for ConTeXt? I would like to do the same as "\heartpar{text}" (see http://mirrors.ctan.org/macros/latex/contrib/shapepar/shapepar.pdf page 9) with ConTeXt. TIA for any hints, -- Peter

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Harfbuzz plugin and colors
by Jairo A. del Rio 14 Feb '22

14 Feb '22

Hi, list! I've tested the Harfbuzz plugin in ConTeXt and it works nicely for most cases. However, color doesn't seem to work. Is this intended? I know this plugin won't be supported, but I'll be fine with pointers to solve this issue. Thanks in advance. \usemodule[fonts-plugins] \definefontfeature[harf] [mode=plug, features=harfbuzz, shaper=native] %Just to test Harfbuzz is actually working \definefontfeature[devaA][harf] [language=dflt, script=deva] \definefontfeature[devaB][default] [script=deva] \definefontfeature[colored][harf] [language=dflt,script=arab, colr=yes] %doesn't do anything \startbuffer[hindi] %From a Wikipedia page हिन्‍दी भाषा का इतिहास लगभग एक सहस्र वर्ष पुराना माना गया है। हिन्‍दी भाषा व साहित्‍य के जानकार अपभ्रंश की अन्तिम अवस्‍था 'अवहट्ठ से हिन्‍दी का उद्भव स्‍वीकार करते हैं। चन्द्रधर शर्मा 'गुलेरी' ने इसी अवहट्ठ को 'पुरानी हिन्दी' नाम दिया। अपभ्रंश की समाप्ति और आधुनिक भारतीय भाषाओं के जन्मकाल के समय को संक्रान्तिकाल कहा जा सकता है। हिन्दी का स्वरूप शौरसेनी और अर्धमागधी अपभ्रंशों से विकसित हुआ है। 1000 ई॰ के आसपास इसकी स्वतन्त्र सत्ता का परिचय मिलने लगा था, जब अपभ्रंश भाषाएँ साहित्यिक सन्दर्भों में प्रयोग में आ रही थीं। यही भाषाएँ बाद में विकसित होकर आधुनिक भारतीय आर्य भाषाओं के रूप में अभिहित हुईं। अपभ्रंश का जो भी कथ्य रूप था - वही आधुनिक बोलियों में विकसित हुआ। \stopbuffer \starttext {\righttoleft\definedfont[file:AmiriQuranColored.ttf*colored]\input{khatt-ar}} {\definedfont[file:Lohit-Devanagari.ttf*devaA]\getbuffer[hindi]} \blank[line] {\definedfont[file:Lohit-Devanagari.ttf*devaB]\getbuffer[hindi]} \stoptext

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LuaMetaLa(!)TeX
by Henning Hraban Ramm 13 Feb '22

13 Feb '22

WTF, someone wrote a LaTeX format for LuaMetaTeX already 3 years ago: https://github.com/zauguin/luametalatex (Herbert Voss just pointed me to it.) Hraban

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Re: [NTG-context] \installpagearrangement doublesided stickers
by Jigé 11 Feb '22

11 Feb '22

Thanks a lot Willi, Sorry for the late reply. Actually, for a while I couldn't make it work. But It seems it was just my \dosetuparrangement that was wrong. Now it works. Here it is, cleaned-up: \installpagearrangement 2*5*double*2*5 {\dosetuparrangement{2}{5}{10}{3}{6} % number of pages on the x axis, % number of pages on the y axis, % total (?), % number of cutmarks on the x axis, % number of cutmarks on the y axis, \pusharrangedpageTWOFIVEDOUBLESIDED\poparrangedpagesAB\relax} \def\pusharrangedpageTWOFIVEDOUBLESIDED#1% {\advancearrangedpageN \reportarrangedpage\arrangedpageN \ifcase\arrangedpageN \or \handlearrangedpageXandY{#1}000\arrangedpageA % 1 % Numbers starting from 0: % rotation state, % horizontal placement, % vertical placement. \\or \handlearrangedpageXandY{#1}010\arrangedpageB % 2 \or \handlearrangedpageXandY{#1}010\arrangedpageA % 3 \or \handlearrangedpageXandY{#1}000\arrangedpageB % 4 \or \handlearrangedpageXandY{#1}001\arrangedpageA % 5 \or \handlearrangedpageXandY{#1}011\arrangedpageB % 6 \or \handlearrangedpageXandY{#1}011\arrangedpageA % 7 \or \handlearrangedpageXandY{#1}001\arrangedpageB % 8 \or \handlearrangedpageXandY{#1}002\arrangedpageA % 9 \or \handlearrangedpageXandY{#1}012\arrangedpageB % 10 \or \handlearrangedpageXandY{#1}012\arrangedpageA % ... \or \handlearrangedpageXandY{#1}002\arrangedpageB % \or \handlearrangedpageXandY{#1}003\arrangedpageA % \or \handlearrangedpageXandY{#1}013\arrangedpageB % \or \handlearrangedpageXandY{#1}013\arrangedpageA % \or \handlearrangedpageXandY{#1}003\arrangedpageB % \or \handlearrangedpageXandY{#1}004\arrangedpageA % \or \handlearrangedpageXandY{#1}014\arrangedpageB % \or \handlearrangedpageXandY{#1}014\arrangedpageA % \or \handlearrangedpageXandY{#1}004\arrangedpageB % \poparrangedpages \fi} \definepapersize[Vignette][width=80.0mm,height=50.0mm] \setuppapersize [Vignette][A4] \setuparranging [2*5*double*2*5] \setuplayout [margin=0pt, location=middle, marking=on] \showframe \starttext \dorecurse{20}{\vbox to \textheight{\vfill\midaligned{\tfd ABC}\vfill}\page} \stoptext My aim is to have something as plain as possible so I can modify it quickly to print double-sided cards, more likely from an image, instead of using some clumsy wysiwyg editor. Next thing is to find a sensible name for the layout. I'm not sure about the 2*5*double*2*5 name. Thanks again. > Date: Sat, 22 Jan 2022 22:20:36 +0100 > From: Willi Egger <context(a)boede.nl> > To: mailing list for ConTeXt users <ntg-context(a)ntg.nl> > Subject: Re: [NTG-context] \installpagearrangement doublesided > stickers > Message-ID: <6A631259-75DC-4B7F-BE10-A0584908B5E9(a)boede.nl> > Content-Type: text/plain; charset=utf-8 > > Hello Jigé, > > Adapt your layout to the following and it works. > > \setuplayout > [%] > margin=0mm, > topspace=0mm, > backspace=1mm, > width=80mm, > height=50mm, > nx=2, > ny=5, > dx=0mm, > dy=0mm, > location=middle, > marking=on, > ] > > Kind regards > Willi > >> On 16 Jan 2022, at 15:18, Jigé via ntg-context <ntg-context(a)ntg.nl> wrote: >> >> Greetings everyone. >> >> Well, it's not exactly about double-sided stickers but sort of. Imagine printing a double-sided sheet and using a so-called plastifying device to make tokens. >> I began with the File Card and Labels examples from the wiki, then tried to change the \installpagearrangement example from the 'imposition' wiki page. >> >> My question is: >> how to position everything in the middle of the sheet, so that double-siding actually works? >> As is, it's all in the top left corner. Changing the location argument for "location=middle" in \setuplayout doesn't work here. What should it be? >> >> By the way, I'm not sure about the 3rd, 4th and 6th arguments in the dosetuparrangement command. >> >> Thanks a lot! >> >> Here it is: >> >> \installpagearrangement 2*5*double*2*5 >> {\dosetuparrangement{5}{2}{10}{3}{6}% X,Y,Total,hcutmarks,vcutmarks >> \pusharrangedpageTWOFIVEDOUBLESIDED\poparrangedpagesAB\relax} >> >> \def\pusharrangedpageTWOFIVEDOUBLESIDED#1% >> {\advancearrangedpageN >> \reportarrangedpage\arrangedpageN >> \ifcase\arrangedpageN >> \or \handlearrangedpageXandY{#1}000\arrangedpageA % 1 rot,hskip,vskip >> \or \handlearrangedpageXandY{#1}010\arrangedpageB % 2 >> \or \handlearrangedpageXandY{#1}010\arrangedpageA % 3 >> \or \handlearrangedpageXandY{#1}000\arrangedpageB % 4 >> \or \handlearrangedpageXandY{#1}001\arrangedpageA % 5 >> \or \handlearrangedpageXandY{#1}011\arrangedpageB % 6 >> \or \handlearrangedpageXandY{#1}011\arrangedpageA % 7 >> \or \handlearrangedpageXandY{#1}001\arrangedpageB % 8 >> \or \handlearrangedpageXandY{#1}002\arrangedpageA % 9 >> \or \handlearrangedpageXandY{#1}012\arrangedpageB % 10 >> \or \handlearrangedpageXandY{#1}012\arrangedpageA % ... >> \or \handlearrangedpageXandY{#1}002\arrangedpageB % >> \or \handlearrangedpageXandY{#1}003\arrangedpageA % >> \or \handlearrangedpageXandY{#1}013\arrangedpageB % >> \or \handlearrangedpageXandY{#1}013\arrangedpageA % >> \or \handlearrangedpageXandY{#1}003\arrangedpageB % >> \or \handlearrangedpageXandY{#1}004\arrangedpageA % >> \or \handlearrangedpageXandY{#1}014\arrangedpageB % >> \or \handlearrangedpageXandY{#1}014\arrangedpageA % >> \or \handlearrangedpageXandY{#1}004\arrangedpageB % >> \poparrangedpages >> \fi} >> >> \definepapersize[Etiquette][width=80.0mm,height=50.0mm] >> \setuppapersize [Etiquette][A4] >> \setuparranging [2*5*double*2*5] >> %\setuplayout [margin=0pt, width=fit] >> \setuplayout[ >> %location=middle,%nx=2,ny=5, >> %location=middle, >> location=left, >> marking=on, >> margin=0mm, >> topspace=0mm, >> backspace=0mm, >> width=fit, >> %header=0mm, >> %footer=0mm, >> %align=middle, >> ] >> >> \showframe >> %\setuppagenumbering[state=stop] >> \setuppagenumbering[alternative=doublesided] >> >> \starttext >> \dorecurse{20}{\vbox to \textheight{\vfill\midaligned{\tfd ABC}\vfill}\page} >> \stoptext >> ___________________________________________________________________________________

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Indented Paragraph After Float?
by Michael Urban 08 Feb '22

08 Feb '22

As always, it is hard to tell whether this is my stupidity, the wrong version of ConText, or a bug. \setupfloat[figure][indentnext=yes] \starttext %\setupbodyfont[11pt] \setupindenting[yes, medium] \input ward \startplacefigure[title=A Figure,location=page] \startframedtext \input ward.tex \stopframedtext \stopplacefigure Why am I not indented? \input ward \stoptext produces output (for me) with the next paragraph after the figure placement unindented. I cannot think of a workaround hack in this case. mtx-context | ConTeXt Process Management 1.03 mtx-context | mtx-context | main context file: /usr/local/texlive/texmf-local/tex/context/base/mkiv/context.mkiv mtx-context | current version: 2020.03.10 14:44 mtx-context | main context file: /usr/local/texlive/texmf-local/tex/context/base/mkiv/context.mkxl mtx-context | current version: 2020.03.10 14:44

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next version
by Hans Hagen 07 Feb '22

07 Feb '22

Hi, In case I forget (and someone is in wikify mode) ... the next upload will have a new command: test \diagnostic {here 1} test test \diagnostic[2] {here 2} test test \diagnostic[.05]{here 3} test which will show up as [[diagnostic]] > here 1 [[diagnostic]] > here 2 (sleep: 2) [[diagnostic]] > here 3 (sleep: 0.05) and which can be used for debugging styles. It might evolve. 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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Regular Online meeting
by Gerhard Schramm 07 Feb '22

07 Feb '22

Dear Hraban, Dear Hans I'm looking for a way to automatically rotate a graphic (DIN_A4_PDF_Pages). I try to manage technical manuals with Context. (Which is really great!) To do this, I have to import always new PDF-pages (technical sketches) , which can be in landscape or portrait format. The pages should always be displayed as large as possible on the pages of my manuals. (I have no influence on the PDF's, as they come from other departments.) Do you see a possibility here? kind regards Gerd

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Double-sided documents with MetaFun's Field[Text][Text]
by śrīrāma 07 Feb '22

07 Feb '22

Dear list, I have a double-sided document in which I want to draw certain page backgrounds on the right (odd) and left (even) pages. Here is an example %%% SOF \setuppagenumbering[alternative=doublesided] \setuplayout [backspace=4cm, leftmargin=4cm, cutspace=2cm, rightmargin=2cm, leftmargindistance=0cm, rightmargindistance=0cm, header=2cm, footer=2cm, topspace=1cm, bottomspace=1cm, top=1cm, bottom=1cm, width=middle, height=fit] \startuseMPgraphic{page} StartPage; draw Area[Text][Text] shifted (InnerMarginWidth,BottomHeight+FooterHeight); draw Field[Text][Text] withcolor blue; StopPage; \stopuseMPgraphic \defineoverlay[page][\useMPgraphic{page}] \setupbackgrounds[page][background=page] \starttext \dorecurse{10}{\input knuth \page} \stoptext %%% EOF In the resulting PDF the Field[Text][Text] path is not positioned (/computed?) correctly, while the manually positioned Area[Text][Text] path is as expected. So, it seems that the margin widths and other distance are updated for each odd, even page but Field[Text][Text] is still wrong? The Field[Text][Text] path appears on every page as though it is on an odd (right) page. Have I missed something? Thanks, śrīrāma (Sreeram)

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