August 2022 - ntg-context - NTG Mailing Lists

\nolimits no effect in LMTX
by Stefan Haller 16 Aug '22

16 Aug '22

Hello, The \nolimits macro has no effect in LMTX, but works fine in the context mkiv version of my texlive installation. Small example: \starttext \startformula \sum\nolimits_{i=1}^{n} a_i \stopformula \stoptext In LMTX the sub- and superscripts are incorrectly placed below and above the sum operator. Can someone have a look what's going wrong? Thanks in advance! Best regards, Stefan Haller

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Re: [NTG-context] How can I make a Gentoo Linux package for ConTeXt LMTX?
by Max Chernoff 16 Aug '22

16 Aug '22

Okay, I'm seeing a few separate issues here. 1. Gentoo expects to compile everything from source. This isn't an option here since LuaMetaTeX doesn't have any source available (yet). So for the time being, you'll need to use the provided binaries. These support pretty much every architecture, so this shouldn't really be a problem. 2. You want to install ConTeXt LMTX system-wide. This is doable with the standard Linux installer script. Just make sure to run the script as root and install the files in /opt/context. This is what I've done on my system, and it works quite well. $ ls -l $(type -p context) lrwxrwxrwx. 1 root root 10 Jul 28 00:33 /opt/context/tex/texmf-linux-64/bin/context -> luametatex* 3. You want to install ConTeXt without any network access. The easiest way to do this would be to install on a system with internet, then just copy over the files. If you want to use the "original" installer files, it shouldn't be impossible, but probably not too easy either. (All steps below are untested) The platform-independent stuff is all in one big zip, located at: http://lmtx.pragma-ade.nl/install-lmtx/texmf-context.zip Unzip this file as "<context root>/tex/texmf-context/". Then you also need to download all of the binaries. You will need to download all of the paths listed in this file: http://lmtx.pragma-ade.nl/install-lmtx/tex/texmf-linux-64.tma All of those files need to be placed in "<context root>/tex/texmf-linux- 64/bin". Then to finish installing you'll need to run "mtxrun --generate" and "context --make". There are probably a bunch of other steps that I'm missing, but this should get you close. Again, probably easier to just use the regular installer. 4. ConTeXt is really picky about texmfcnf stuff. This is an issue that I've had too: https://github.com/latex3/l3build/issues/232 Pretty much any modification of anything texmfcnf-related with ConTeXt will completely prevent it from running. There's a thread discussing the problem (but with no real solutions) here: https://tug.org/pipermail/tex-live/2020-September/046099.html And a Wiki page here: https://wiki.contextgarden.net/Custom_Configuration I agree that this texmfcnf stuff makes it really difficult to install or use ConTeXt with any kind of custom paths. Does anyone know how to properly configure a texmfcnf with custom paths? Hopefully this is of some help. -- Max

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Cron <context@zapf> /var/www/aanhet.net/context/bin/cron/context-mirror
by root＠ntg.nl 16 Aug '22

16 Aug '22

rsync: failed to connect to rsync.pragma-ade.nl (213.125.29.165): Connection timed out (110) rsync error: error in socket IO (code 10) at clientserver.c(125) [Receiver=3.1.2]

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Re: [NTG-context] Accessing inserts from Lua in LuaMetaTeX
by Max Chernoff 16 Aug '22

16 Aug '22

Hi Hans, > > First, how do I get an insert's class/type from the "insert" nodes on > > the page? With LuaTeX, the insert's class/type is the same as the > > subtype of the "ins" nodes, but the subtype of the "insert" nodes is > > always zero in LuaMetaTeX, so I'm not sure how to get the class/type. After playing around, I found that this is stored in "<insert node>.index". I'm able to write to this value just fine, but whenever I read it I get an error. This minimal example: \starttext \setbox999=\vbox{\hrule width 10pt height 10pt} \startluacode local insert = node.new("insert") local rule = tex.box[999].list insert.list = rule insert.index = 4 node.write(insert) \stopluacode \stoptext works perfectly, but this example: \startluacode local insert = node.new "insert" insert.index = 4 print(insert.index) \stopluacode gives this error message: In \insertmode 2 you can't use zero as index. I suspect that this is a bug, but I may just be doing something wrong. > Indeed, we don't use these boxes and registers because we run in > \insertmode=2. This gives us more state info (i kept the old method > around for now). Inserts always felt a little hacky in TeX, so I think that the new methods are a huge improvement. > > Second, how do I get the head of the insert box from Lua? With LuaTeX, > > from TeX you would use "\box<class>" and from Lua you can use > > "tex.box[<class>]". With LuaMetaTeX, you use "\insertbox<class>" from > > TeX, but I'm not sure how to get at the insert box from Lua. > > tex.getinsertdistance > tex.getinsertmultiplier > tex.getinsertlimit > tex.getinsertheight > tex.getinsertdepth > tex.getinsertwidth > tex.getinsertcontent > tex.setinsertdistance > tex.setinsertmultiplier > tex.setinsertlimit > tex.setinsertcontent Perfect! "tex.getinsertcontent" does exactly what I need. Really minor, but I would expect that tex.insertcontent[4] = <some node> <some node> = tex.insertcontent[4] would be exist and be equivalent to <some node> = tex.getinsertcontent(4) tex.setinsertcontent(4, <some node>) > The insert (etc) handler is more clever and flexible. So, for instance > we can bubble up inserts. I think you do a preroll so in that case you > can set the migrations related parameter to not bubble up. > > \starttext > > \holdingmigrations\numexpr1+2+4\relax > > \setbox0\hbox{test \footnote{test} test} > > \setbox2\vbox{\unhcopy0} > > \holdingmigrations0 > > \setbox4\vbox{\unhcopy0} > > \unhbox0 > > \unvbox2 > > \unvbox4 > > \stoptext > > But I have no clue how all that will work out with (lua) code that > manipulates these things. In list nodes you can consult the pre and post > fields to what got migrated. I don't think that that will work in this case. I'm doing most of the work in "pre_output_filter", which is after all of the insert nodes have been removed from the page and put into their respective boxes. And I can't postpone setting any inserts until then because TeX needs to know their height for when it breaks the page. I don't really like how I have to move the footnotes, but I can't find any better way of doing things. If you're curious, most of the insert code is in these two functions: https://github.com/gucci-on-fleek/lua-widow-control/blob/2bca90/source/lua-… https://github.com/gucci-on-fleek/lua-widow-control/blob/2bca90/source/lua-… Thanks, -- Max

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sync text streams in facing pages
by Pablo Rodriguez 15 Aug '22

15 Aug '22

Dear list, adapting a the sample from mkxl/page-str.mkxl (and code from the list), I came with the following sample: \setuppapersize[A6] \showgrid %\setuplayout[grid=yes] \starttext \input tufte \startoutputstream[es] \dorecurse{25} {\startlanguage[es]\input cervantes-es\stoplanguage% \par\pushoutputstream} \enableoutputstream[en] \dorecurse{25} {\input zapf\par\pushoutputstream} \disableoutputstream \stopoutputstream \synchronizestreams[es,en] \page \flushoutputstream[es] \page \flushoutputstream[en] \stoptext To reorder pages, I rename the output to "wg.pdf" and run the following code: \setuppapersize[A6] \setuplayout[page] \starttext \dorecurse{26} {\ifnum\recurselevel = 1 \externalfigure[wg.pdf][page=\recurselevel]\else \externalfigure[wg.pdf][page=\recurselevel] \externalfigure[wg.pdf][page={\the\numexpr \recurselevel + 25}]\fi} \stoptext I’m afraid that the paragraph mistmatch is clear (the number of pages is way different for each versions). Using the grid, the mismatch is not so evident (but there is still a different number of pages for each version). Page reordering would be in this case: \setuppapersize[A6] \setuplayout[page] \starttext \dorecurse{20} {\ifnum\recurselevel = 1 \externalfigure[wg.pdf][page=\recurselevel]\else \externalfigure[wg.pdf][page=\recurselevel] \externalfigure[wg.pdf][page={\the\numexpr \recurselevel + 19}]\fi} \stoptext I would need that for a bilingual edition. I don’t mind reodering the pages (if there is no other option). But what am I doing wrong not to get synced text streams for facing pages? Many thanks for your help, Pablo

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Accessing inserts from Lua in LuaMetaTeX
by Max Chernoff 15 Aug '22

15 Aug '22

Hi all, I'm trying to manipulate some inserts from Lua in LuaMetaTeX, and I'm having some problems that I'm not having with LuaTeX. First, how do I get an insert's class/type from the "insert" nodes on the page? With LuaTeX, the insert's class/type is the same as the subtype of the "ins" nodes, but the subtype of the "insert" nodes is always zero in LuaMetaTeX, so I'm not sure how to get the class/type. Second, how do I get the head of the insert box from Lua? With LuaTeX, from TeX you would use "\box<class>" and from Lua you can use "tex.box[<class>]". With LuaMetaTeX, you use "\insertbox<class>" from TeX, but I'm not sure how to get at the insert box from Lua. The context for both of these is that my module lua-widow-control sometimes moves a line containing footnotes to the next page, so I need to do some surgery to make sure that the "footnote marks" stay with the "footnote text". This is tricky but doable with LuaTeX, but I can't seem to get it to work with the new inserts in LuaMetaTeX, hence the above questions. Thanks, -- Max

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Keep the right margin in [nothyphenated, flushleft] columns
by Marcin Ciura 13 Aug '22

13 Aug '22

Dear list, I am typesetting [nothyphenated,flushleft] text in two columns. Some words stick through the right margin of the left column, sometimes even overlapping the right column. How can I make Context obey the right margin? The MWE is below. Here is the output PDF: https://live.contextgarden.net/cgi-bin/result.cgi?id=UnSfnS Best regards, Marcin \setupalign[nothyphenated,flushleft] \starttext \startitemize[n,nowhite,columns,two] % The word '(boków' sticks through the right % margin of the left column. \item {\bf Wielokąt} to figura na płaszczyźnie, której brzeg składa się z~odcinków ({\bf boków wielokąta}). Końce boków nazywamy wierzchołkami wielokąta. Czasem wyróżniamy jeden bok, nazywając go podstawą wielokąta. \stopitemize \stoptext

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Changing the caption on a split table
by Bruce Horrocks 13 Aug '22

13 Aug '22

I have a 5-page table placed using \setupcaption [table] [way=bytext,prefixsegments=none] \placetable[split]{My long table}{...} The caption for the first table page is "Table 1a My Long table"; for the second table page it is "Table 1b My long table" and so on. I'd like to change these to be "Table 1 My Long table" then "Table 1 (cont'd) My long table" for the remaining pages. I've tried \setupcaption[table][suffix={(cont'd)] but that affects all the pages. How can I set it for the second and subsequent pages only, please? — Bruce Horrocks Hampshire, UK

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How to do code listings & sections from XML (AsciiDoc)
by Mojca Miklavec 13 Aug '22

13 Aug '22

Hi, Hans helped me out with some asciidoc processing a while ago. I played a bit further, but I'm currently facing two minor issues: (a) I don't know how to turn program listing (verbatim code) from xml to (perhaps, vim-based) syntax highlighting (but most importantly, to make sure that line breaks work properly) (b) some section titles are missing Ad (a). The source that looks similar to this: <programlisting language="cpp" linenumbering="unnumbered"> int main() { return 0; } </programlisting> should be converted into some kind of equivalent of % on top \usemodule[vim] \definevimtyping [CPP] [syntax=cpp] \startCPP int main() { return 0; } \stopCPP In the attachment I have the source document (test.adoc), the generated docbook xml that should be further processed, and test.tex that one processes to get the final pdf. Any hints would be greatly appreciated. Mojca

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image with rounded corners
by Henning Hraban Ramm 12 Aug '22

12 Aug '22

Hi, can ConTeXt make rounded image corners? Both of my approaches don’t work: \externalfigure[mill][ width=3cm, frame=on, corner=round,radius=1cm, backgroundcorner=round,backgroundradius=1cm, ] \defineoverlay[Mill][{% \externalfigure[mill][width=\overlaywidth] }] \framed[background=Mill,width=3cm,height=4cm, corner=round,radius=1cm, backgroundcorner=round,backgroundradius=1cm, offset=overlay]{} Hraban

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