- ntg-context - Mailing Lists

transparent color
by Hans van der Meer 06 May '24

06 May '24

I would like to use a transparent version of an existing color. Thus \definecolor[transparentcolor][color,t=0.2,a=1] instead of \definecolor[transparentcolor][r=..,g=..,b=..,t=0.2,a=1] because I do not know the rgb values of the color that must be made transparent, only its name. How to accomplish? yours sincerely dr. Hans van der Meer

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Why is this description environment not showing the correct title?
by Joel 05 May '24

05 May '24

\definedescription[latexdesc][headstyle=bold, style=normal, align=flushleft, alternative=hanging, width=broad, margin=1cm] \starttext \latexdesc{1540} some event happened \latexdesc{1541} some other event happened \latexdesc{1542} some event happened quite different \stoptext I found the above code (the first line) in the ConTeXt Wiki, as a way to create the equivalent of a desc environment from LaTeX. The items inside {} should be bold, then there is a gap before the next text. I am using this to display a simple timeline. Though the formatting looks perfect, very strangely when I compile it, it changes all of the dates to say "1540" (or whatever date was used first). Why is it showing the wrong title on the desc environment? --Joel

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How to stop ConTeXt from thinking period is at the end of a sentence?
by Joel 05 May '24

05 May '24

I noticed that some code is being rendered wrong, most especially apparent in a column environment where sometimes the text can get stretched a bit more to fit the column width nicer. If a sentence says "They appeared between c. 1200 BCE and c. 1500 CE." it appears ConTeXt thinks that the period in "c." marks the end of a sentence. As such, when setting the text, sometimes it will give a large space between "c." and "1200 BCE". How do I correctly tell ConTeXt that that period doesn't mark the end of a sentence, so shouldn't be given extra space afterwards? --Joel

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Switch number and enumeration text
by Jethro Djan 04 May '24

04 May '24

Dear List, I would like to get something like: 1.1 Theorem instead of Theorem 1.1. Seems simple enough but can't figure out how to switch the number and the text. I have the following MWE: \defineenumeration[theorem][ prefix=chapter, text=Theorem, style=italic, headstyle=bold, headcommand=\groupedcommand{}{.}, ] \starttext \chapter{} \section{} \starttheorem This is a theorem \stoptheorem \stoptext Many thanks, Jethro

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How to obtain the hbox's node when there is only one hbox for an entire paragraph?
by 黄复雄 01 May '24

01 May '24

Dear list, What is the non-hacking way to obtain the hbox's node in a Lua hook when there is only one hbox for an entire paragraph? Best regards, Huang Fusyong (黄复雄) % start ConTeXt \startluacode Moduledata = Moduledata or {} Moduledata.jiazhu = Moduledata.jiazhu or {} ---[[ local function show_detail(n, label) local l = label or "=======" print(">>>>>>>>>"..l.."<<<<<<<<<<") print(nodes.toutf(n)) for i in node.traverse(n) do local char if i.id == nodes.nodecodes.glyph then char = utf8.char(i.char) print(i, char) elseif i.id == nodes.nodecodes.penalty then print(i, i.penalty) elseif i.id == nodes.nodecodes.glue then print(i, i.width, i.stretch, i.shrink, i.stretchorder, i.shrinkorder) elseif i.id == nodes.nodecodes.hlist then print(i, nodes.toutf(i.list),i.width,i.height,i.depth,i.shift,i.glue_set,i.glue_sign,i.glue_order) elseif i.id == nodes.nodecodes.kern then print(i, i.kern, i.expension) else print(i) end end end --]] function Moduledata.jiazhu.main(head) show_detail(head,"head") return head, true end nodes.tasks.appendaction("processors", "after", "Moduledata.jiazhu.main") \stopluacode \starttext \hbox{a b c} % The result is as follows (without the <node: hlist box> I expected)： % >>>>>>>>>head<<<<<<<<<< % a b c % <node : nil <= 3688 => 3448 : glyph unset> a % <node : 3688 <= 3448 => 3702 : glue spaceskip> 261738 130869 87246 0 0 % <node : 3448 <= 3702 => 3484 : glyph unset> b % <node : 3702 <= 3484 => 3716 : glue spaceskip> 261738 130869 87246 0 0 % <node : 3484 <= 3716 => nil : glyph unset> c ~\hbox{a b c} % Hacking with the `~`, the result is as follows (containing the <node: hlist box> I expected): % >>>>>>>>>head<<<<<<<<<< % a b c % <node : nil <= 3719 => 3377 : glyph unset> a % <node : 3719 <= 3377 => 3733 : glue spaceskip> 261738 130869 87246 0 0 % <node : 3377 <= 3733 => 3491 : glyph unset> b % <node : 3733 <= 3491 => 3747 : glue spaceskip> 261738 130869 87246 0 0 % <node : 3491 <= 3747 => nil : glyph unset> c % >>>>>>>>>head<<<<<<<<<< % a b c % <node : nil <= 3395 => 3484 : par vmodepar> % <node : 3395 <= 3484 => 2208 : glue indentskip> 0 0 0 0 0 % <node : 3484 <= 2208 => 3498 : penalty userpenalty> 10000 % <node : 2208 <= 3498 => 3325 : glue spaceskip> 261738 130869 87246 0 0 % <node : 3498 <= 3325 => 3441 : hlist box> a b c 1702476 545484 8646 0 nil nil nil<node : 3325 <= 3441 => nil : glue spaceskip> 261738 130869 87246 0 0 \stoptext

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\par and \startlines
by denis.maier＠unibe.ch 01 May '24

01 May '24

Hi, I'm trying to typeset a poem from XML, but I can't figure out how to make the inbetween key working here. As the source is XML, I cannot just add an empty line to start a new group of lines inside \startlines...\stoplines. I guess, there must be a command to do that, but \par seems to have no effect here. How can this be done? Best, Denis %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \setuplines[before={\blank},after={\blank},inbetween={ARE WE INBETWEEN?\blank}] % XML Nodes auswählen \startxmlsetups xml:test \xmlsetsetup{#1}{*}{-} \xmlsetsetup{#1}{doc|poem|stanza|line}{xml:*} \stopxmlsetups \xmlregistersetup{xml:test} \startxmlsetups xml:doc \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:poem \startlines \xmlflush{#1} \stoplines \stopxmlsetups \startxmlsetups xml:stanza \xmlflushlinewise{#1}\par %this has no effect \stopxmlsetups \startxmlsetups xml:line \xmlflush{#1} \stopxmlsetups \startbuffer[test] <?xml version='1.0' standalone='yes?> <doc> <poem> <stanza> <line>The</line> <line>lines</line> <line>are</line> <line>there!</line> </stanza> <stanza> <line>The</line> <line>lines</line> <line>are</line> <line>there!</line> </stanza> </poem> </doc> \stopbuffer \starttext This works: \startlines The lines are there! The lines are there! \stoplines Apparently, \type{\par} has no effect here: \startlines The lines are there!\par% \par has no effect here The lines are there! \stoplines For background, this is what I'm actually trying to do: \xmlprocessbuffer{test}{test}{} \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

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Font switching for titles and subtitle not working as expected ?
by denis.maier＠unibe.ch 30 Apr '24

30 Apr '24

Hi, I just jumbled upon this question on tex stackexchange : https://tex.stackexchange.com/questions/715799/context-switching-font-for-b… Using the style key as suggested in the accepted answer works, but I've had a look in to this, and I don't understand why the original code does not work. I've also tried to find a solution using textcommand instead of command, but that makes no difference. Only one setting will be accepted. As soon as both, titles and subjects, are changed only the first change will be accepted. Is this a bug, or am I missing something? Best, Denis %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Original MWE \define[2]\mytitle{% \switchtobodyfont[chorus]% #2 } \define[2]\mysubject{% \switchtobodyfont[chorus]% #2 } \setuphead[title][command=\mytitle] \setuphead[subject][command=\mysubject] \starttext \title{In Zapf Chancery} \subject{Apparently the default font. Why?} And in the default font, just as expected. \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Adapted MWE %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \define[1]\mytitleformat{% \switchtobodyfont[chorus]% #1 } %\setuphead[subject,title][textcommand=\mytitleformat] %\setuphead[title][textcommand=\mytitleformat] \setuphead[subject][textcommand=\mytitleformat] % this will adapt the format for subjects, as long as titles are not changed \starttext \title{In Zapf Chancery} \subject{Apparently the default font. Why?} And in the default font, just as expected. \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

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Re: QR Code (Henning Hraban Ramm)
by Benjamin Buchmuller 30 Apr '24

30 Apr '24

Hi Hraban, Downgrading zint to 2.12.0 worked for me. Many thanks! In case someone is experiencing similar issues, I ran: brew remove zint curl https://raw.githubusercontent.com/Homebrew/homebrew-core/962d789d26c9d8f760… > zint.rb brew install zint.rb zint --version (should be 2.12.0) [follow the instructions to symlink zint to tex/texmf-osx-64/bin/lib/luametatex/zint] mtxrun --generate

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Re: ConteXt commands in an rtl environment
by Wolfgang Schuster 30 Apr '24

30 Apr '24

Alan Bowen schrieb am 29.04.2024 um 19:37: > I used TeXShop and PopChar Pro to get the letter ר so that it is l2r. > > Not a great solution but it works when one is working in r2l text. > (Thank heaven for Unicode.) > > I will have a look at Visual Studio Code. I tested a few text editors with better RTL support and all of them show the text in the same way as TeXShop. Support for RTL in Visual Studio Code seems to be limited because the editor doesn't use the Unicode Bidi Algorithm [1]. [1] https://wiki.archlinux.org/title/Bidirectional_text#Editors Wolfgang

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unprotecting when defining in Lua
by Pablo Rodriguez 30 Apr '24

30 Apr '24

Dear list, I have the following sample: \starttext \startluacode function document.test(str) context(str) end interfaces.definecommand { name = "testing", protected = false, macro = document.test, } \stopluacode \meaningfull\testing \def\test#1{#1} \meaningfull\test \stoptext Which is the right way to use "interfaces.definecommand" to get a simple command as in standard TeX? I mean, no a non \permanent or non \protected command. Many thanks for your help, Pablo

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