November 2022 - ntg-context

new upload
by Hans Hagen 15 Nov '22

15 Nov '22

Hi, I uploaded a new version. New is that we can apply hz to math, although currently we have configured it as experiment. \setupbodyfont[pagella] % \startluacode % fonts.expansions.vectors.math = { % [0x002B] = { 4, 0 }, -- + % [0x2212] = { 4, 0 }, -- - % [0x003C] = { 8, 0 }, -- < % [0x003D] = { 8, 0 }, -- = % [0x003E] = { 8, 0 }, -- > % [0x002F] = { 2, 0 }, -- / % [0x0028] = { 2, 0 }, -- ( % [0x0029] = { 2, 0 }, -- ) % [0x005B] = { 2, 0 }, -- [ % [0x005D] = { 2, 0 }, -- ] % } % \stopluacode \setupmathematics[hz=yes] \startbuffer \showglyphs \dorecurse{20}{\strut test $x + y/2 - w = 10$ }\unskip \stopbuffer \definecolor[tgreen][g=1,t=.5,a=1] \definecolor[tred] [r=1,t=.5,a=1] \startTEXpage[offset=5dk] \startoverlay {\ruledvbox to 5cm{\setupalign [tolerant,stretch]\tgreen\getbuffer\vss}} {\ruledvbox to 5cm{\setupalign[hz,tolerant,stretch]\tred\getbuffer\vss}} \stopoverlay \stopTEXpage \stoptext Normally an expansion factor is small and used for both stretch and shrink, but we can have them independendent. So, here we stretch rather extreme but don't shrink. \setupmathematics[hz=yes] only kicks in when we have hz enabled as alignment option. We can of course configure more 'stretchable symbols' but first we want to know if it makes sense at all. We can also imagine to disable it in specific cases. 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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Cron <context@zapf> /var/www/aanhet.net/context/bin/cron/context-mirror
by root＠ntg.nl 15 Nov '22

15 Nov '22

receiving incremental file list ./ ctan.lsr document-2.htm download-1.htm download-2.htm install.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/luametatex.pdf sent 108,686 bytes received 24,909,582 bytes 3,335,769.07 bytes/sec total size is 448,981,588 speedup is 17.95 Running archiver: New dir: /var/www/aanhet.net/context//htdocs/archives/context-2022-11-15.00 172079140 /var/www/aanhet.net/context//htdocs/archives/context-2022-11-15.00/latest 126745317 /var/www/aanhet.net/context//htdocs/archives/context-2022-11-15.00/current 18956262 /var/www/aanhet.net/context//htdocs/archives/context-2022-11-15.00/alpha 126707516 /var/www/aanhet.net/context//htdocs/archives/context-2022-11-15.00/beta 444492331 /var/www/aanhet.net/context//htdocs/archives/context-2022-11-15.00 444492331 total

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\xmldocument vs #1 in \xmlsetsetup
by denis.maier＠unibe.ch 14 Nov '22

14 Nov '22

Hi, most examples in the mkiv-xml manual use #1 with \xmlsetsetup, e.g. \startxmlsetups xml:demo:base \xmlsetsetup{#1}{document|section|p}{xml:demo:*} \stopxmlsetups However, in quite a few occasions I've noticed the usage of \xmldocument instead of #1. What exactly is the difference ? When should you prefer one over the other? Best, Denis

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\definemeasure / \dimexpr
by Henning Hraban Ramm 13 Nov '22

13 Nov '22

I’m constantly struggling with dimension calculations. Is there anything I can read about the possibilities and limitations? e.g. with \definemeasure[PageWidth][132mm] none of the following works: \definemeasure[FlapWidth][0.8 * \measure{PageWidth}] \definemeasure[FlapWidth][.8\measure{PageWidth}] \definemeasure[FlapWidth][\measure{PageWidth} * 0.8] \definemeasure[FlapWidth][\measure{PageWidth}*8/10] \definemeasure[FlapWidth][8\measure{PageWidth}/10] Hraban

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How to stop enumerated tabulate environments from shifting to the right?
by Joel 13 Nov '22

13 Nov '22

When I place a tabulate environment inside itemize, it indents and the entire table is shifted to the right about 1/2". \starttext \input knuth \startitemize[n] \item x \stopitemize \startitemize[n] \starttabulate[|lp(.1\textwidth)|cp(.35\textwidth)|cp(.2\textwidth)|cp(.35\textwidth)|] \NI \NC \NC \NC\NR \NC \NC \NC \NC\NR \stoptabulate \stopitemize \input knuth\stoptext See this code which when compiled, the first itemize numbers line up with the left edge of text, but the one with tables indents. It also seems to spill into the right margin. How can I stop enumerated table environments from indenting? --Joel

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LMTX: reimplementing texquotes as OTF feature
by Leah Neukirchen 12 Nov '22

12 Nov '22

Hi, as Hans recommended in the last video meeting, I tried to implement the texquotes feature using OTF features, and hit two problems: 1) To support German quotes as well, I have two ligatures that end up as the same glyph: `` -> “ "' -> “ This can't be in the same ligature feature, as it will overwrite the table entry with a duplicate key. After some fiddling, I decided to map "' to a Unicode PUA symbol and then add a second feature that maps this symbol to “ using the substitute feature. This works for TeX Gyre Schola. But perhaps someone knows a nicer way. 2) This approach doesn't work for lmodern or palatino, I still get "' as inch-sign/quote there... anything else I need to tweak for these fonts? \startluacode fonts.handlers.otf.addfeature { name = "texlig", type = "ligature", data = { ['“'] = { "`", "`" }, ['”'] = { "'", "'" }, ['„'] = { '"', "`" }, [''] = { '"', "'" }, ['‘'] = { "`" }, ['’'] = { "'" } } } fonts.handlers.otf.addfeature { name = "texsub", type = "substitute", data = { [''] = '“', } } \stopluacode % with lmodern or palatino it breaks \setupbodyfont[schola] \definefontfeature[ltest][texlig=yes,texsub=yes,trep=no] \addff{ltest} \starttext ``foo'' `foo' "`foo"' 19" rack \stoptext Thanks, -- Leah Neukirchen <leah(a)vuxu.org> https://leahneukirchen.org/

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how to simulate \hss in luametatex?
by 黄复雄 11 Nov '22

11 Nov '22

Hi list, I want to simulate \hss in lua end in ConTeXt/luametatex environment. For example, ```ConTeXt a{\raise 1.5ex\hbox to 0pt{\hss b}}c ``` should get 'b' on top of 'a', as follows: ```pdf b ac ``` and in lua, I see a <glue userskip> before "b" node, width width:0, stretch:65536, shrink:65536, stretchorder:2, shrinkorder:2 And in lua, I do as follows(part of my app seen in attachment): ```lua local hss = node_new(glue_id) hss.stretch = 65536 hss.stretchorder = 2 hss.shrink = 65536 hss.shrinkorder = 2 hss.width = 0 list,_ = node_insertbefore(list, list, hss) -- b is in the list -- I got a <glue userskip> with width:0, stretch:65536, shrink:65536, stretchorder:2, shrinkorder:2 local box = node_new(hlist_id, "box") box.head = list box.width = 0 box.shift = -tex_sp("1ex") -- I got <hlist box> width:0 height:0 deep:0 shift: -503424 head, current = node_insertbefore(head,current, box) -- current is 'c' node ``` And got 'b' on top of 'c' in pdf as follows: ```pdf b ac ``` How can I get 'b' on top of 'a' as \hss do? ___________________________________________________________________________________ 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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Page break with placement of a figure at the bottom of the page
by Fabrice Couvreur 10 Nov '22

10 Nov '22

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. Thanks. Fabrice \useMPlibrary[dum] \definelayout [1] [topspace=10mm, header=15mm, headerdistance=10mm, height=middle, width=middle, location=middle] \setuplayout [topspace=10mm, header=0pt, headerdistance=0pt, height=middle, width=middle, location=middle] \definefloat [recipe] [figure] \setupfloat [recipe] [default={right,none}] \showframe \starttext \dorecurse{11}{\input ward} \placerecipe{}{\externalfigure[dum]} \stoptext

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pragma-ade.nl - 404
by Thangalin 10 Nov '22

10 Nov '22

Hi, https://pragma-ade.nl/ We're seeing a bad cert and a 404. Possible to redirect the .nl to the .com to avoid breaking scripts and download URLs? Note that the following page references the .nl TLD for downloads: https://wiki.contextgarden.net/Installation Cheers!

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New VSCode extenstion using ConTeXt Language server
by Ramkumar KB 09 Nov '22

09 Nov '22

Hello All, I have published the new VSCode Extension for ConTeXt, that I presented during the 2022 ConTeXt meeting - https://wiki.contextgarden.net/VSCode You can install it manually in the VSCode (using the "Install from VSIX..." option). Documentation (for now) - https://meeting.contextgarden.net/2022/talks/ramkumar/ramkumar-talk.pdf This supports ConTeXt markup and for any Lua code (within \startluacode & \stopluacode) it re-directs to the Lua Language Server (from Sumneko - https://github.com/sumneko/lua-language-server ) To Do - 1. Make the source code open-source 2. Add new features (like Hover & Tooltip) 3. Work with Taco to add MetaPost Language Server (this could be challenging and interesting) Do give this a try and give your feedback. Note that this does not contain *all* the macros but covers the vast majority of the ConTeXt commands. Thank you, best regards Ramkumar

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