November 2022 - ntg-context - NTG Mailing Lists

Xml filtering in Lua
by Thomas A. Schmitz 21 Nov '22

21 Nov '22

Hi all, I thought this was easy, but I overestimated my competence… I want to filter xml elements via their attributes and retrieve and typeset parts belonging together. Here is a small test file that explains what I’m trying: \startbuffer[test] <document> <topics> <topic id="test1"> <title>This is the first test</title> <date>22/11/16</date> </topic> <topic id="test2"> <title>This is the second test</title> <date>22/11/17</date> </topic> </topics> <chapters> <chapter id="test1"> <content> This will be the content of the <emph>first</emph> chapter. </content> </chapter> <chapter id="test2"> <content> This will be the content of the <emph>second</emph> chapter. </content> </chapter> </chapters> </document> \stopbuffer \startxmlsetups xml:testsetups \xmlsetsetup{#1}{*}{-} \xmlsetsetup{#1}{document|chapters|chapter|content|emph}{xml:*} \stopxmlsetups \xmlregistersetup{xml:testsetups} \startxmlsetups xml:document \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:chapters \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:chapter \xmlfunction {#1} {chapter} \xmlflush {#1} \stopxmlsetups \startxmlsetups xml:chapter:content \xmltext {#1} {content} \stopxmlsetups \startxmlsetups xml:emph {\em \xmlflush {#1}} \stopxmlsetups \startluacode function xml.functions.chapter (t) local ch_id = t.at.id local metadata = xml.filter (root, '../../topics/topic[@id=="%s"]', ch_id) print (inspect(metadata)) lxml.command(t, ".", "xml:chapter:content") context.par () context (ch_id) context.par () end \stopluacode \starttext \xmlprocessbuffer{main}{test}{} \stoptext The line with xml.filter does not work as I expected. How can I walk the tree, find the “topic” element with the same “id” attribute as the chapter I’m currently in, and then typeset the different children of the topic element? Thanks a lot and all best Thomas

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\setupmathematics oddity
by Alan Bowen 20 Nov '22

20 Nov '22

The following \setupmathematics[autopunctuation={all,semicolon}] %\setupmathematics[autopunctuation={all, semicolon}] %\setupmathematics[autopunctuation={all,semicolon,colon}] \starttext \startformula 0,0;2,0,35,17,40,41\textdegree{} \cdot 365;15 \cdot 40 = 2,9;23,14\textdegree{}. \stopformula \stoptext works as it should (no space after the “;” or the “,”). With the second and third versions of \setupmathematics there is an unwanted space after each punctuation mark. Alan

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annotated equations
by Henning Hraban Ramm 18 Nov '22

18 Nov '22

Here’s an interesting example for annotated equations, done with LaTeX/TikZ: https://mastodon.social/@sibin/109349703357749846 I guess something similar is possible with node anchors in ConTeXt/MetaPost? Hraban

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Do environment files add implicit \starttext ... \stopttext
by denis.maier＠unibe.ch 18 Nov '22

18 Nov '22

Hi, if I process an XML buffer, I've noticed I need to wrap the \xmlprocessbuffer in a \starttext ... \stoptext pair. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \startbuffer[test] <?xml version='1.0' standalone='yes?> <document> a paragraph of text another paragraph of text </document> \stopbuffer \startxmlsetups xml:demo \xmlsetsetup{\xmldocument}{document|p}{xml:*} \stopxmlsetups \xmlregistersetup{xml:demo} \startxmlsetups xml:document \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:p \xmlflush{#1}\endgraf \stopxmlsetups \starttext \xmlprocessbuffer{test}{test}{} \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% However, if I have the XML and the setups in dedicated files, there seems to be no need for \starttext ... \stoptext. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% text.xml <?xml version='1.0' standalone='yes?> <document> a paragraph of text another paragraph of text </document> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% setups.tex \startxmlsetups xml:demo \xmlsetsetup{\xmldocument}{document|p}{xml:*} \stopxmlsetups \xmlregistersetup{xml:demo} \startxmlsetups xml:document \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:p \xmlflush{#1}\endgraf \stopxmlsetups %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Running context text.xml -environment=setups.tex gives me a proper PDF without errors. Therefore my question: Does the use -environment automatically wrap the processed file in \starttext ... stoptext ? If not, what's the reason for this behaviour? Am I missing something? Best, Denis

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Cron <context@zapf> /var/www/aanhet.net/context/bin/cron/context-mirror
by root＠ntg.nl 18 Nov '22

18 Nov '22

receiving incremental file list ./ ctan.lsr document-2.htm download-1.htm download-2.htm logo-ade.png logo-cts.png logo-pod.png rss.xml show-fil.pdf context/latest/ context/latest/cont-mpd.zip context/latest/cont-ppc.zip context/latest/cont-sci.zip context/latest/cont-tmf.zip context/latest/cont-tst.7z context/latest/cont-tst.tar.xz context/latest/cont-tst.zip general/manuals/ general/manuals/math-tweaks.pdf sent 101,435 bytes received 20,386,821 bytes 3,152,039.38 bytes/sec total size is 449,010,176 speedup is 21.92 Running archiver: New dir: /var/www/aanhet.net/context//htdocs/archives/context-2022-11-18.14 172107841 /var/www/aanhet.net/context//htdocs/archives/context-2022-11-18.14/latest 126745317 /var/www/aanhet.net/context//htdocs/archives/context-2022-11-18.14/current 18956262 /var/www/aanhet.net/context//htdocs/archives/context-2022-11-18.14/alpha 126707516 /var/www/aanhet.net/context//htdocs/archives/context-2022-11-18.14/beta 444521032 /var/www/aanhet.net/context//htdocs/archives/context-2022-11-18.14 444521032 total

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\autoinsertedspace fails following \nbsp under LMTX
by Rik Kabel 17 Nov '22

17 Nov '22

ConTeXt ver: 2022.11.14 22:58 LMTX on W11 x64 I have been testing the recently added \autoinsertedspace, and I found an odd failure. The following compiles with \nbsp commented as shown, but once that line is active, the compilation fails: lua error: callback error: ...MTX/tex/texmf-context/tex/context/base/mkxl/font-hsh.lmt:151: table index is nil It fails differently in MkIV (but it is nice to see that the new command has been backported): luatex warning > node filter: error: ...MTX/tex/texmf-context/tex/context/base/mkiv/node-nut.lua:380: Attempt to node.direct.remove() a non-existing node %<------------------------------------------------------ \starttexdefinition unexpanded New \dodoublegroupempty \doNew \stoptexdefinition \starttexdefinition doNew #1#2 \removeunwantedspaces \ (#1|–|#2) \autoinsertedspace \stoptexdefinition \starttext ABC 0\New{123}{456} 789 ABC % \nbsp 0\New{123}{456} 789 \stoptext Am I doing something wrong here? \nbsp is needed to prevent improper line breaks. -- Rik

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Context crashes using Iosevka v16.3.6 typeface
by Werner Schmidt 17 Nov '22

17 Nov '22

Dear list, I like to use the Iosevka as mono typeface. It worked in the past, but sadly context crashes now with the following error. fatal error: /font-dsp-macro.lua:2336: attempt to index a nil value (local 'sequence') Plese see MWE below. Any ideas how debug / solve this issue? Thanks in advance. Werner ------- test_iosevka. tex -------- % Win 10 Enterprise, x64, 10.0.19042 Build 19042 % ConTeXt ver: 2022.10.22 11:23 LMTX fmt: 2022.11.12 int: english/english % fatal error: /font-dsp-macro.lua:2336: attempt to index a nil value (local 'sequence') \starttypescriptcollection[myfonts] % Mono - iosevka (Iosevka SS09 — Terminal, Hinted) % Source: https://github.com/be5invis/Iosevka/blob/v16.3.6/doc/PACKAGE-LIST.md \starttypescript [mono] [iosevka] [name] \setups[font:fallback:mono] \definefontsynonym [Mono] [file:iosevka-term-ss09-light] \definefontsynonym [MonoItalic] [file:iosevka-term-ss09-lightitalic] \definefontsynonym [MonoSlanted] [file:iosevka-term-ss09-lightoblique] \definefontsynonym [MonoBold] [file:iosevka-term-ss09-semibold] \definefontsynonym [MonoBoldItalic] [file:iosevka-term-ss09-semibolditalic] \definefontsynonym [MonoBoldSlanted] [file:iosevka-term-ss09-semiboldoblique] \stoptypescript \starttypescript[iosevka] \definetypeface [\typescriptone] [tt] [mono] [iosevka] [default] [rscale=0.84,features={default,ss09=yes}] \stoptypescript \stoptypescriptcollection %\setupbodyfont [mono] % Latin Modern Mono works! \setupbodyfont [iosevka] % iosevka v16.3.6 crashes! :-( \starttext \input{zapf} \stoptext

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How to break margin notes across page breaks?
by Joel 16 Nov '22

16 Nov '22

How can I allow margin text to break across the page breaks? I have a document with many \inmargin code. The problem I'm finding is that sometimes I have a lot of items in the margin. I hope this margin details can break across the page and continue onto the next page. The problem is instead it just runs off the print boundaries of the page. See this sample code for an example: \starttext \input knuth \inmargin{\input knuth } \input knuth \input knuth \input knuth \input knuth \input knuth \input knuth \stoptext How can I allow margin notes to break across pages instead of running off the page boundaries? --Joel

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Re: [NTG-context] Page break with placement of a figure at the bottom of the page
by Fabrice Couvreur 16 Nov '22

16 Nov '22

Hi, Sorry to come back to you, but it seems to me that there is enough space here. Fabrice Le jeu. 10 nov. 2022 à 18:04, Fabrice Couvreur <fabrice1.couvreur(a)gmail.com> a écrit : > Hi, > Sorry to come back to you, but it seems to me that there is enough space > here. > Fabrice > > Le jeu. 10 nov. 2022 à 17:45, Fabrice Couvreur < > fabrice1.couvreur(a)gmail.com> a écrit : > >> Hi, >> Sorry to come back to you, but it seems to me that there is enough space >> here. >> Fabrice >> >> Le jeu. 10 nov. 2022 à 11:59, Fabrice Couvreur < >> fabrice1.couvreur(a)gmail.com> a écrit : >> >>> Sorry to come back to you, but it seems to me that there is enough space >>> here. >>> >>> Le jeu. 10 nov. 2022 à 11:36, Fabrice Couvreur < >>> fabrice1.couvreur(a)gmail.com> a écrit : >>> >>>> Hi Bruce and Pablo, >>>> Thank you very much, your explanations are very clear. >>>> Cordially >>>> Fabrice >>>> >>>> Le mer. 9 nov. 2022 à 19:39, Bruce Horrocks via ntg-context < >>>> ntg-context(a)ntg.nl> a écrit : >>>> >>>>> On 9 Nov 2022, at 18:22, Pablo Rodriguez via ntg-context < >>>>> ntg-context(a)ntg.nl> wrote: >>>>> > >>>>> > On 11/9/22 17:51, Fabrice Couvreur via ntg-context wrote: >>>>> >> Hi, >>>>> >> I find that for some time (but maybe the problem comes from me !), >>>>> the >>>>> >> placement of a figure at the bottom of the page causes a page break >>>>> when >>>>> >> it seems to me that there is enough space, which poses some >>>>> problems in >>>>> >> the pagination of my documents. >>>>> > >>>>> > Hi Fabrice, >>>>> > >>>>> > your figure requires about 7¼ lines (one line before, six for the >>>>> image >>>>> > itself, and some extra space after it). >>>>> > >>>>> > Your layout for the first page only allows 43 lines and sample text >>>>> ends >>>>> > on line 37. >>>>> > >>>>> > Replace \showframe with \showgrid and you will see that there might >>>>> be >>>>> > not enough space to fit the image in the first page. >>>>> > >>>>> > Add "bottomspace=7.25mm" to the layout for the first page and the >>>>> image >>>>> > will fit in the first page. >>>>> > >>>>> > Just in case it might help, >>>>> >>>>> Or Pablo's answer shown another way... change the end of the example >>>>> to: >>>>> >>>>> \starttext >>>>> \dorecurse{11}{\input ward} >>>>> \placerecipe{}{\externalfigure[dum]} >>>>> \dorecurse{5}{\input ward} %% extra >>>>> \stoptext >>>>> >>>>> and the extra text shows how much space the image requires. Holding a >>>>> ruler up to the screen you can see that it won't fit. >>>>> >>>>> The problem seems to be that the image is reserving space for a >>>>> caption even though there isn't a caption. A work-around is to change >>>>> \setupfloat to the following: >>>>> >>>>> \setupfloat >>>>> [recipe] >>>>> [default={right,none,high}] >>>>> >>>>> and then the image fits as you want it to. >>>>> — >>>>> Bruce Horrocks >>>>> Hampshire, UK >>>>> >>>>> >>>>> ___________________________________________________________________________________ >>>>> If your question is of interest to others as well, please add an entry >>>>> to the Wiki! >>>>> >>>>> maillist : ntg-context(a)ntg.nl / >>>>> https://www.ntg.nl/mailman/listinfo/ntg-context >>>>> webpage : https://www.pragma-ade.nl / http://context.aanhet.net >>>>> archive : https://bitbucket.org/phg/context-mirror/commits/ >>>>> wiki : https://contextgarden.net >>>>> >>>>> ___________________________________________________________________________________ >>>>> >>>>

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How to make a block of text narrower?
by Joel 16 Nov '22

16 Nov '22

I need to make a section of text in my document narrower, about .6666\textwidth. Basically the text has normal alignment and everything, just instead of filling \textwidth, its compressed so there is a larger white space to the right. I've tried dozens of things, but cannot get a good solution, every solution has strange other effects. The best thing that has worked so far is \setuplayout[width=3in] But the problem with this solution is then I cannot get it to return to the original settings afterward. --Joel

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