July 2020 - ntg-context - NTG Mailing Lists

Multiple cases of unexpected behaviour in luametatex
by Marcel Fabian Krüger 04 Jul '20

04 Jul '20

Hi, I recently noticed some cases where luametatex behaved in unexpected ways: - The "Extra \fi" error isn't triggered, instead an extra `\fi` freezes luametatex. (Can be reproduced by compiling a document which only consists of a single \fi) - token.new can only create some `data` tokens, but it doesn't apply bound checking on it's arguments: Take ``` \directlua{ t = token.new(0x200000, token.command_id'data') print(t.cmdname, t.command, t.mode) } ``` which prints register 102 0 The issue does not seem to be that such tokens do not exists because \letdatacode\somedata="200000 \directlua{ local t = token.create'somedata' print(t.cmdname, t.command, t.index) } does print data 101 2097152 Also for all other commands LuaTeX seems to apply range-checks to ensure that such overflows don't happen, even if invalid values are passed as firstargument. - There is token.primitives(). My assumption is that the returned table is meant to indicate the command is, mode and name corresponding to every primitive. (I think it is awesome that such a table is made available in luametatex) But especially the mode field sometimes has values which do not correspond to the mode of the actual primitives: I tried running the following in an almost iniTeX setting where all primitives aside from \shipout and \Umathcodenum have their default definitions: ``` \catcode`\%=12 \catcode`\~=12 \directlua{ local sorted = token.primitives() table.sort(sorted, function(a,b) return a[1]<b[1] or a[1]==b[1] and a[2]<b[2]end) for _,info in ipairs(sorted) do local t = token.create(info[3]) local rc, rm = t.command, t.mode if rc==info[1] and rm ~= info[2] then if info[2] == 0 then print(string.format('MODE MISMATCH, expected zero: \string\\%s: real: %i, command: %i', info[3], rm, rc)) else print(string.format('MODE MISMATCH: \string\\%s: offset: %i, command: %i', info[3], rm-info[2], rc)) end elseif rc~=info[1] then print(t.csname) end end } ``` This indicates that there are two kinds of differences: For some command codes, there are multiple primitives whose second entry in the token.primitives table is zero even though their mode is not zero. This especially affects the commands `above`, `after_something`, `make_box`, `un_vbox`, `set_specification` and `car_ret`. E.g. for after_something, all of \atendofgrouped, \afterassigned and \aftergrouped have a zero as second entry in token.primitives. The other difference is that all the internal_... commands have a fixed offset which differes between commands in their mode field. IMO the difference for the internal_... commands make sense because they make for easier to use numbers, but having multiple primitives indicating mode 0 for the other commands seems to make this table significantly less useful because it can't be used to get a unique description of a primitive. (I may have completely misinterpreted the table of course, but given that for other primitives the values match I do not think so) Best regards, Marcel

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Converting a CSV file to a Lua table and Lua file
by Otared Kavian 04 Jul '20

04 Jul '20

Hi all, I have a bash script which converts a CSV file into a Lua table, which is then used in ConTeXt. It works fine, but I wonder whether there is a code within LuaMetaTeX for doing this directly there (writing a new file which contains the Lua table). This would be more efficient and neater. Thus a CSV file « example.csv » containing the lines: X,Y,Z 0.05597,0.6612,0.8618 0.156804,0.8784,0.961 0.496804,0.8784,0.9324 0.176804,0.648,0.9643 would be converted and wriiten into a lua file « example.lua » containing the lines: return{ -- {X,Y,Z}, {0.05597,0.6612,0.8618} {0.156804,0.8784,0.961} {0.496804,0.8784,0.9324} {0.176804,0.648,0.9643} } Thanks in advance for any help: Otared K.

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overfull message
by Hans van der Meer 03 Jul '20

03 Jul '20

I would very much like to get rid of the overfull hbox messages in the log. They clutter the log and I have not much use for them Setting \hbadness to a large enough value should suppress them below the threshold. But this does not happen. At least not in the minimal example enclosed herby. Is there a remedy making these messages disappear from the log? dr. Hans van der Meer

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Store images and text in the right margin
by Fabrice Couvreur 03 Jul '20

03 Jul '20

Hello everyone and in particular to Wolfgang who has already provided me with the solution below. I will have to write a Mathematics book for my students and the remarks and graphics should be in the right margin. I got the code written by Wolfgang and tried to include the graphics in it. The result is not as expected because the graphic overflows on the text. The course will be written in A4 format with an 11 pts font. Thanks for your help. Fabrice \useMPlibrary[dum] \setuppapersize[A4] \setuplayout [width=12cm, rightmargin=5cm] \definemargindata[marginfigure][inright] \setupmargindata [marginfigure][command=\vbox,align=middle] \defineuserdata [margintext] [alternative=margintext] \defineuserdataalternative [margintext] [renderingsetup=userdata:margintext] \startsetups [userdata:margintext] \margindata [inright] [%style=\smallbodyfont, style={\switchtobodyfont[9pt]}, width=\rightmarginwidth, align={flushleft,broad}] {{\bf Remarque — }\getinlineuserdata} \stopsetups \showframe \starttext \startuserdata[margintext] \input ward \stopuserdata \marginfigure{\externalfigure[dummy][width=\rightmarginwidth]} \startchapter[title=First chapter] \dorecurse{2}{\input knuth} \stopchapter \stoptext

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Typesetting poetry with particular indenting
by Tommaso Gordini 02 Jul '20

02 Jul '20

Hi everyone. I am typesetting a poetry text in triplets and I would like the second and third lines of each triplet to be indented (i.e., in the next example, verse no. 2, 3, 5, and 6). Is it possible to get what I ask for with ConTeXt? The most I managed to do is this: \starttext \setupindenting[yes,1em] \setuplines[indenting=even] \startlines Per correr miglior acque alza le vele omai la navicella del mio ingegno, che lascia dietro a sé mar sì crudele; e canterò di quel secondo regno dove l'umano spirito si purga e di salire al ciel diventa degno. \stoplines \stoptext but that's not what I want. Thank you very much in advance? Tommy

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Fwd: TeX Annual Meeting 2020 going online
by Taco Hoekwater 02 Jul '20

02 Jul '20

Hi all, See the announcement for the (online) TUG 2020 meeting below. Best wishes, Taco > Begin forwarded message: > > From: Paulo Ney DE SOUZA <paulo(a)berkeley.edu> > Subject: TeX Annual Meeting 2020 going online > Date: 1 July 2020 at 21:32:35 CEST > > ----------------------------------- > The TeX annual user conference TUG 2020 is going digital on July 24, 25, 26. Register for free! > > As we move TUG 2020 completely online, we look forward to offering you the same vibrant programming, innovative and timely content from presenters, and opportunities to reflect and connect over the emerging topics in TeX and typography with users across the world. The online conference will include our regular offerings and opportunities for engagement, including sessions, workshops, keynotes, and space to connect with users, from across the globe. > > We will have keynote addresses by Steven Matteson, the designer of the NOTO fonts and John MacFarlane the author of Pandoc. We will also feature interviews with Javier Bezos of Babel and Philip Kime of BibLaTeX. > > In addition to participating in the live event, all attendees will have access to break-out rooms for networking and social engagement. Moving our face-to-face conference to a fully online format presents us with the unique opportunity to spotlight the best of what the online modality affords – meaningful collaboration and the ability to reflect and connect with colleagues around the world. We hope that you will join us for this reimagined event, and celebrate our collective resilience and dedication to forging connections without boundaries. > > We look forward to welcoming you to the TUG 2020 Online Conference in July, and we are here to help you however we can with questions and requests for support. Please feel free to reach out to us with requests related to TUG 2020 at > > tug-conferences(a)tug.org <mailto:tug-conferences@tug.org> > > Registration is required. While access to the meeting will be free to everyone, you will be required to register to view the meeting. Even if you registered to attend the TUG 2020 at RIT, you will need to register again for TUG 2020 Online. Registration for the meeting is open at > > https://tug.org/tug2020/ <https://tug.org/tug2020/> > > Paulo Ney de Souza > TUG 2020 Organizers Taco Hoekwater Elvenkind BV

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something between packed and "small"??
by Mike Cooper 01 Jul '20

01 Jul '20

Me again... I've got an itemize that needs to fit on one page. I've been using inbetween={\blank[small]} for all the other analogous lists but this one is longer and with that spacing, it goes about one inch onto the next page. But if I use packed, the list is way too crammed together and there's about 2.5 inches of extra space on the page! How do I go smaller than small? Is there a "lightly packed"? Or other degrees? I've tried \blank[1mm] and other dimensions but nothing will go smaller than small... :-( THANKS FOR YOUR HELP!! Mike Cooper Technical Trainer Murchison Drilling Schools, Inc. 2501 Juan Tabo NE Albuquerque, NM 87112 Tel: (505) 293-6271 Fax: (505) 298-5294 Email: mike(a)murchisondrillingschools.com<mailto:mike@murchisondrillingschools.com> Website: www.murchisondrillingschools.com<http://www.murchisondrillingschools.com/> [cid:image007.jpg@01D03ADC.BD6E6850]<https://www.facebook.com/pages/Murchison-Drilling-Schools/158018484232622> [cid:image008.jpg@01D03ADC.BD6E6850] <http://www.linkedin.com/company/murchison-drilling-schools-inc-> [cid:image009.jpg@01D03ADC.BD6E6850] <https://twitter.com/trainingmds> Murchison Drilling Schools is now part of [cid:image001.png@01D63515.857FD120]

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Wiki ConText Installation updated
by Taco Hoekwater 01 Jul '20

01 Jul '20

Hi all, Today I updated the ConText behind wiki.contextgarden.net, live.contextgarden.net and source.contextgarden.net to the current latest: 2020.06.30 17:30. * The wiki’s <context> tag now defaults to “lmtx” mode, and you can switch back to “mkiv“ using the “mode” attribute. The “mkii” mode is no longer working. * The wiki’s <syntax> now supports the latest ConText as well, and I added support for all the “system-level” commands. Also the colors have changed a little and generated commands now have a link back to generating command. * the live website always run lmtx. * the source website’s software has been improved a little as well; I have updated the documentation page accordingly. Happy TeXing, Taco

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Avoid indentation after \typebuffer
by Mikael Sundqvist 01 Jul '20

01 Jul '20

Hi, I want to avoid indentation after \typebuffer (or set indentnext to auto perhaps). I am probably missing something simple, but I thought that the example file below should have worked: \setupindenting[yes,medium] \setuptyping[buffer][ indentnext=no, ] \starttext \startbuffer \startformula \int_a^b f'(x)\,dx \stopformula \stopbuffer \typebuffer I do not want this line to be indented. \stoptext Compiled with an updated lmxt, and resulting pdf file is attached. /Mikael

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\hideframe to cancel \showframe
by Mikael Sundqvist 30 Jun '20

30 Jun '20

Hi, say that I, for educational purposes, want to use \showframe for a couple of pages, and then want to hide the frames. What is the correct way of doing this? I have for now added a \begingroup and \endgroup, but then another document parameter that is set inside is cancelled after the \endgroup. I tried to look in the source, but could not find anything that worked (what I tried with was to use \setupbackgrounds[state=stop], but that was merely a guess, and it did not work). /Mikael

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