ntg-context January 2023

ntg-context@ntg.nl

45 participants
63 discussions

Nested itemize
by Alexandre Christe 22 Aug '23

22 Aug '23

Dear all, I'm struggling to setup a nested itemize with no blank line and several columns. What I mean is something like 1. a) bla c) bla b) bla d) bla The following MWE is my starting point \starttext \startitemize[n] \item \blank[-line] \startitemize[a,horizontal,two] [margin=2cm] \item First \item Second \item Third \item Fourth \stopitemize \item \blank[-line] \startitemize[a,horizontal,columns,two] \item First \item Second \item Third \item Fourth \stopitemize \stopitemize \stoptext Thanks in advance

3 7

Luatex 1.12.0 announcement.
by luigi scarso 27 May '23

27 May '23

============================================================== LuaTeX 1.12.0 2020-03-15 ============================================================== This is the release for TeX live 2020. --shell-restricted now forbids loading of dso (dll/so object) Scaled virtual font Aadditional primitives \eTeXglue[stretch|shrink]order for querying order the etex way. Extra features runtoks tex.getmodenames() (as these can differ per engine/version) Permit nested runtoks in more complex situations of nesting (HH) More accurate and correct test for tex.[set|get]math Minor clean-up and bugs fixed -- luigi

1 4

Non-standard font alternatives
by Matthew McCabe 20 Apr '23

20 Apr '23

Hi list, I'm looking to import a font with medium and light weights (in this case Roboto) and define font alternatives so one can quickly switch to light text just as one would switch to bold text. There is a stackexchange answer from Wolfgang (https://tex.stackexchange.com/questions/303648/context-font-weights) which details a solution to this problem for ConTeXt MkIV but despite my best efforts I haven't been able to get things to work for me. There is the Roboto typescript example on ConTeXt garden but it isn't exactly what I'm looking for as for the document I'm making I would prefer to be able to treat the font weights as alternatives rather than separate families since I will be switching often. One can download the exact set of fonts I am using from https://fonts.google.com/specimen/Roboto Here is my code: \definefontalternative[lf] % light \definefontalternative[li] % lightitalic \definefontalternative[md] % medium \definefontalternative[mi] % mediumitalic \starttypescript [sans] [roboto] \definefontsynonym [SansLight] [file:Roboto-Light] [features=default] \definefontsynonym [SansLightItalic] [file:Roboto-LightItalic] [features=default] \definefontsynonym [Sans] [file:Roboto-Regular] [features=default] \definefontsynonym [SansItalic] [file:Roboto-Italic] [features=default] \definefontsynonym [SansMedium] [file:Roboto-Medium] [features=default] \definefontsynonym [SansMediumItalic] [file:Roboto-MediumItalic] [features=default] \definefontsynonym [SansBold] [file:Roboto-Bold] [features=default] \definefontsynonym [SansBoldItalic] [file:Roboto-BoldItalic] [features=default] \definefontsynonym [SansCaps] [file:Roboto-Sans] [features=smallcaps] \stoptypescript \starttypescript [sans] [roboto] \definebodyfont [default] [rm] [lf=SansLight sa 1, li=SansLightItalic sa 1, tf=Sans sa 1, it=SansItalic sa 1, md=SansMedium sa 1, mi=SansMediumItalic sa 1, bf=SansBold sa 1, bi=SansBoldItalic sa 1, sc=SansCaps sa 1] \stoptypescript \definetypeface[roboto][rm][sans][roboto][default] \setupbodyfont[roboto] \starttext \lf Light \li LightItalic \tf Regular \it Italic \md Medium \mi MediumItalic \bf Bold \bi BoldItalic \sc SmallCaps \stoptext - The result is entirely in the regular weight default font: What I've tried: 1. I've tried a great deal of alternative \definefontsynonym arguments such as specifying by name, including the full path to each ttf file 2. I played around with different two character \definefontalternative arguments to ensure there was no overlap with existing commands (as far as I am aware the existing set are otherwise undefined) A few things to note: 1. My current version of ConTeXt is 2022.12.09 16:34 2. For portability I have included the ttf files for Roboto in a directory within my project directory and while setting things up I set OSFONTDIR to include this directory and run `mtxrun --script fonts --reload --force` 3. `mtxrun --script fonts --list --all --pattern=Robo` yields: identifier familyname fontname filename subfont instances roboto roboto robotoregular ./fonts/Roboto/Roboto-Regular.ttf robotoblack roboto robotoblack ./fonts/Roboto/Roboto-Black.ttf robotoblackitalic roboto robotoblackitalic ./fonts/Roboto/Roboto-BlackItalic.ttf robotobold roboto robotobold ./fonts/Roboto/Roboto-Bold.ttf robotobolditalic roboto robotobolditalic ./fonts/Roboto/Roboto-BoldItalic.ttf robotoitalic roboto robotoitalic ./fonts/Roboto/Roboto-Italic.ttf robotolight roboto robotolight ./fonts/Roboto/Roboto-Light.ttf robotolightitalic roboto robotolightitalic ./fonts/Roboto/Roboto-LightItalic.ttf robotomedium roboto robotomedium ./fonts/Roboto/Roboto-Medium.ttf robotomediumitalic roboto robotomediumitalic ./fonts/Roboto/Roboto-MediumItalic.ttf robotonormal roboto robotoregular ./fonts/Roboto/Roboto-Regular.ttf robotoregular roboto robotoregular ./fonts/Roboto/Roboto-Regular.ttf robotothin roboto robotothin ./fonts/Roboto/Roboto-Thin.ttf robotothinitalic roboto robotothinitalic ./fonts/Roboto/Roboto-ThinItalic.ttf 4. Using `\definedfont[name:robotomedium*default] hello` and `\definedfont[file:Roboto-Thin*default] hello` (for example) work exactly as expected I hope this isn't a silly question, I'm very new to ConTeXt and have been struggling for a while so thought I may as well ask in case there's something I'm missing, would appreciate any guidance :) Regards, Matt

5 10

new uplaod
by Hans Hagen 17 Apr '23

17 Apr '23

Hi, I uploaded a new lmtx. Again some updated math of which details will be revealed later. Apart from some details we added suport for fourier notations. There are no high level definitions yet as we have to invent names but this is how it works (private unicode slots might change): \setupbodyfont[pagella] \starttext \setupmathdelimited [topoffset=.2\exheight] \definemathdelimited [fourier] [rule=no, left=\zerocount, right="FE944] \definemathdelimited [courier] [rule=no, left=\zerocount, right="FE946] \definemathdelimited [xourier] [rule=no, left=\zerocount, right="FE948] $ \fourier{(z+1)} $ $ \fourier{(z+1)} + \sqrt[2]{1}$ $ \fourier{(z+1)} + \courier{(z+1)} + \xourier{(z+1)} $ $ \fourier{\left(z+\frac12\right)} + \courier{\left(z+\frac12\right)} + \xourier{\left(z+\frac12\right)} $ $ \autofences \fourier{(z+\frac12)} + \courier{(z+\frac12)} + \xourier{(z+\frac12)} $ $ \widehat{x^2 + 2x + 2} $ \stoptext This example also shows a new \autofences feature and widehats (widetilde and widecheck also work that way) that overcome limitations in fonts, so \def\CrappyHack#1{\im{#1{a} + #1{a+b} + #1{a+b+c} + #1{a+b+c+d} + #1{a+b+c+d+e} + #1{a+b+c+d+e+f}}\par} \CrappyHack\widehat \CrappyHack\widetilde \CrappyHack\wideacute \CrappyHack\widecheck will work. For thise in finance we now have $ \annuity{x + 1} + \lannuity{x + 1} + \rannuity{x + 1} + \lrannuity{x + 1} $ these are basically radicals (like sqrt) with two sided symbols. 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 -----------------------------------------------------------------

3 5

Re: [NTG-context] \typefile not including file and returning success
by Marco 21 Feb '23

21 Feb '23

On Sat, 17 Dec 2022 17:43:48 +0100 Otared Kavian <otared(a)gmail.com> wrote: Thanks for your quick reply. > It seems that one can fool ConTeXt into typing a file without suffix > by giving the path to that file… That works, I can confirm. > \typefile{/Users/kavian/Context/essais/mkiv/bar-bis} Hard-coded absolute paths in TeX files are something I avoid, but I assume that's just for demonstration here. > \typefile{./bar-bis} That works as well. It's a workaround at least. But context returning success when it clearly doesn't include the file is unfortunate. The missing file might go completely unnoticed. I'd expect an error there. Marco

3 3

list not following "focus=standard"?
by Pablo Rodriguez 31 Jan '23

31 Jan '23

Dear list, I have the following sample: \setupinteraction[state=start, focus=standard] \starttext \completecontent \dorecurse{25} {\section{Section} a\footnote{b}} \stoptext Using current latest (from 2023.01.26 18:34), destinations for TOC are pages (/D [ 7 0 R /Fit ]) and destinations for footnotes are named destinations (/D [ 1 0 R /XYZ 61.900625 141.0443 null ]). Compare https://pdf.ousia.tk/lst-fnt.pdf#_3 with any link from the TOC. I‘m afraid this might be a regression from a recently fixed issue. Could anyone confirm this issue? Many thanks for your help, Pablo

1 1

Wrong prefix in cross references to formulas in external document
by Yaroslav Beltukov 31 Jan '23

31 Jan '23

Dear Hans and all contributors, I really appreciate ConTeXt for the right way to obtain high quality documents. I'm a theoretical physicist and I'm going to write a book. I think ConTeXt is the right choice to work with a number of formulas, figures and cross-references. The visual quality of formulas is better than in regular LaTeX. The new feature with formula autosplitting looks also very promising. For me it is important to obtain the high quality without a lot of manual tweaks of each formula for each given document format and figure placement. However, I have found a problem with references if I compile one component only. The references to formulas in other components have wrong prefixes, e.g. (2.1) instead of (3.1). Needless to say, the right formula references are very important. I started looking into this issue. The references to other components are taken from the whole product as from an external document. It turned out that this is a general problem with references with prefixes to external documents. The prefix is stored in a tuc file as a reference to a section as a sequential number of the header in the document. As a result, the prefix from the external document is calculated using the structure of the current document. Here is the MWE, which consists of two files: foo.tex: \defineenumeration[remark][prefix=yes, prefixsegments=chapter:section] \starttext Equations: \in[eq1], \in[eq2], \in[eq3], \in[eq4] Sections: \in[sec1], \in[sec2], \in[sec3], \in[sec4] Chapters: \in[chap1], \in[chap2], \in[chap3], \in[chap4] Remarks: \in[remark1], \in[remark2] \startbodymatter \chapter[chap1]{Chapter} \placeformula[eq1]\startformula x = y\stopformula \chapter[chap2]{Chapter} \section[sec1]{Section} \section[sec2]{Section} \placeformula[eq1]\startformula x = y\stopformula \placeformula[eq2]\startformula x = y\stopformula \stopbodymatter \startappendices \chapter[chap3]{Chapter} \section[sec3]{Section} \placeformula[eq3]\startformula x = y\stopformula \section[sec4]{Section} \startremark[remark1]\stopremark \placeformula[eq4]\startformula x = y\stopformula \startremark[remark2]\stopremark \chapter[chap4]{Chapter} \stopappendices \stoptext bar.tex: \starttext Equations: \in[foo::eq1], \in[foo::eq2], \in[foo::eq3], \in[foo::eq4] Sections: \in[foo::sec1], \in[foo::sec2], \in[foo::sec3], \in[foo::sec4] Chapters: \in[foo::chap1], \in[foo::chap2], \in[foo::chap3], \in[foo::chap4] Remarks: \in[foo::remark1], \in[foo::remark2] % any chapters and sections here \stoptext It is expected to have the same first page on these documents: Equations: 1.1, 2.2, A.1, A.2 Sections: 2.1, 2.2, A.1, A.2 Chapters: 1, 2, A, B Remarks: A.2.1, A.2.2 However, the bar.tex produces wrong prefixes to formulas and remarks. The output depends on the document structure of bar.tex, not foo.tex. I started looking into the source code. Thanks to lua, it is not a big deal to track the problem. The prefixdata is complemented by the sectiondata after the loading the tuc file. So, the question is: is it possible to store the full prefixdata with all necessary prefix numbers in the tuc file? Here is my proposal to change the source code: --- strc-lst-old.lmt 2023-01-29 11:30:15.610309948 +0300 +++ strc-lst.lmt 2023-01-29 12:10:08.864228923 +0300 @@ -266,6 +266,16 @@ if r and not r.section then r.section = structures.sections.currentid() end + -- store sectiondata in prefixdata (necessary for external files) + if t.prefixdata and r.section then + local sectiondata = structures.sections.collected[r.section] + if sectiondata then + for k, v in next, sectiondata do + t.prefixdata[k] = v + end + end + end + -- local b = r and t.block if r and not b then local s = r.section --- strc-ref-old.lmt 2023-01-29 11:30:15.823643904 +0300 +++ strc-ref.lmt 2023-01-29 12:07:45.697109862 +0300 @@ -2318,7 +2318,17 @@ if data then numberdata = lists.reordered(data) -- data.numberdata if numberdata then - helpers.prefix(data,prefixspec) + -- helpers.prefix(data,prefixspec) + -- use the actual numbers from prefixdata + local prefixdata = data.prefixdata + if prefixdata then + -- adapted from helpers.prefix (not sure) + if (prefixspec and prefixspec == no) or prefixdata.prefix == no then + prefixdata = false + end + sections.typesetnumber(prefixdata,"prefix", prefixspec or false, prefixdata) + end + -- sections.typesetnumber(numberdata,"number",numberspec,numberdata) else local useddata = data.useddata After this small change, all the references are correct. However, I'm quite new to ConTeXt, so maybe here are some caveats. It would be great to fix the references to formulas, especially for the forthcoming document about maths. Best regards, Yaroslav Beltukov

3 3

Best way to access casul fonts
by Mattias Märka 30 Jan '23

30 Jan '23

Hi, I'm trying to access Lucida Casual. I see in type-imp-lucida-typeone.mkiv that there is, indeed, a typescript for it, but I can't figure out how to switch to it. That is, I want to make some text be Lucida Casual. I gather from a previous thread that I should be using \definefontstyle, but I don't know how to go about this. Currently I'm just defining a new typescript and making Lucida Casual a synonym for Serif and then using \switchtobodyfont --- but this feel silly. I searched the wiki and skimmed the reference manual, but to no avail. Perhaps I don't know what I should be looking for. Any help would be appreciated. What's the easiest way to access a casual font? What's the cleanest way? Thanks, Mattias Märka

5 10

layout for marked pages?
by Pablo Rodriguez 30 Jan '23

30 Jan '23

Dear list, I have the following sample: \showframe \setuplayout[width=middle] \definelayout[odd][reset] \definelayout[even][reset] \doiftext{\markedpages[zapf]} {\doloopoverlist{\markedpages[zapf]} {\definelayout[\recursestring][page]}} \starttext \dorecurse{50}{\input{knuth}\par} \page\startmarkpages[zapf] \dorecurse{50}{\input{zapf}\par} \stopmarkpages\page \dorecurse{50}{\input{knuth}\par} \stoptext I wanted to have page layout in pages marked with zapf. I thought \markedpages[zapf] was the way to go, but I only get text after marked pages, not before them. Which is the right approach to have marked pages with a different layout? I would be happy to update https://wiki.contextgarden.net/Page_Layout#Multiple_layouts. Many thanks for your help, Pablo

1 0

Subject: Leading spaces verbatim
by Kalouguine Andre 30 Jan '23

30 Jan '23

Good day to everyone, I'm trying to make a verbatim block of text with copiable leading spaces so that students can just copy my Python code snippets into their IDE. I believe the question has been asked before (though I confess I can't find the right search terms to find the answer again). I get that PDFs are not the optimal way to give code to students (which is why for longer snippets, I just give them the files or I attach them into the PDF), but for short snippets it would be so much simpler... I recently stumbled onto this article: https://www.overleaf.com/latex/examples/using-luatex-to-convert-interword-g… wherein the author replaces the TeX glue with spaces and kerning. I was wondering whether the same idea could be applied within the typing environment but making a primitive verbatim environment using \obeylines and \obeyspaces did not result in copiable spaces. Unfortunately, whilst I have some concepts of how luatex works on the input file, the step wherein a pdf is formed is fairly misterious to me, meaning I can't really understand the Lua code from said article (https://gist.github.com/Semptum/076cca71bc251ebe19ff96c5effca3cb). Hence, my three questions: - Is it even realistic to make such a typing environment? - What would be the best path to do so? - Can someone recommend some reading material specifically about this kind of typographical adjustments using LuaTex? Stuff like adjusting the glyphs's position, replacing characters with combined characters etc... Sorry if that's a bit vague, as you can see from the rest of the message, I never really went too deep into the later stages of the TeX pipeline. Best regards, Andre

4 8

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

ntg-context January 2023