January 2025 - ntg-context - NTG Mailing Lists

month form \currentdate in Roman numerals
by Pablo Rodriguez 03 Mar '25

03 Mar '25

Dear list, I would like to get the current month in Roman numerals (just now, it would be XII for December). The best I get is: \currentdate[\cldcontext{converters['R'] (tonumber(os.date("\letterpercent m", os.date(os.time()))))}] This strikes me as too complex (even for someone who cannot code). Is there now simpler way to write that? Just in case it may be relevant, this is part of the full day reference. Many thanks for your help, Pablo

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context / auctex problem?
by hanneder＠staff.uni-marburg.de 24 Feb '25

24 Feb '25

Apologies for this question, which is probably an auctex problem. I have a new install of everything (LinuX, emacs, texlive) and the latest (?) context (ConTeXt ver: 2024.05.27 18:16 LMTX) installed in a separate directory. Running context from the commandline works fine, so I guess I did not misspell the path, but when running "Context All" from emacs, the error is: ----- Running `ConTeXt' on `context-test' with ``context --once --nonstop context-test.tex'' /bin/sh: Zeile 1: context: Kommando nicht gefunden. TeX Output exited abnormally with code 127 at Mon Jun 17 14:03:03 ------ I don't think the .emacs is at fault, it worked before the reinstall and contains, for instance: (setq-default TeX-master t) (setq TeX-parse-self t) (setq TeX-auto-save t) (setq ConTeXt-Mark-version "IV") Any ideas welcome, Jürgen --- Prof. Dr. Juergen Hanneder Philipps-Universitaet Marburg FG Indologie u. Tibetologie Deutschhausstr.12 35032 Marburg Germany Tel. 0049-6421-28-24930 hanneder(a)staff.uni-marburg.de

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images with alt text
by Steffen Wolfrum 06 Feb '25

06 Feb '25

Hi, as publishing houses (at least in Germany) are forced to provide «alt text» with their PDF-publications (from June 2025 on), I need to know how «images with alternate text» (https://en.wikipedia.org/wiki/Alt_attribute) are typeset with ConTeXt LMTX. In HTML it looks like this: <img src="example.jpg" alt="Example text"> What is the equivalent in ConTeXt LMTX? Yours, Steffen

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Error when running context --make after updating context (FreeBSD)
by Potzilov K. 01 Feb '25

01 Feb '25

Hi folks, I receive the following error when running context --make command (after update via install.sh): lua error > lua error on line 18 in file file-mod.mklx: token call, execute: ...ext/tex/texmf-context/tex/context/base/mkxl/file-mod.lmt:78: attempt to call a nil value (field 'getrunstate') stack traceback: ...ext/tex/texmf-context/tex/context/base/mkxl/file-mod.lmt:78: in local 'code' ...ext/tex/texmf-context/tex/context/base/mkiv/util-lua.lua:97: in field 'loadedluacode' ...ext/tex/texmf-context/tex/context/base/mkiv/luat-env.lua:108: in field 'luafilechunk' ...ext/tex/texmf-context/tex/context/base/mkxl/luat-cod.lmt:82: in function 'lua.registercode' [ctxlua]:1: in main chunk <empty file> A number should have been here; I inserted '0'. (If you can't figure out why I needed to see a number, look up 'weird error' in the index to The TeXbook.) Any clues as to what causes this error? System is FreeBSD 14.2 TIA and regards, PT

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(no subject)
by Ursula Hermann 31 Jan '25

31 Jan '25

Dear List From the page: Text blocks/Environments/Lists of items, in the point Customization details and examples Manual labels I have tried the second example. But I don't know what to do, because, as you can see on the pdf, I got the wrong text. \startitemize[R,fit][itemalign=flushright,stopper={ --- }] \dorecurse{5}{\item blablabla} \stopitemize Many thanks Uschi

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does \setuplayout[grid=yes] require \startformula[split=line] ?
by garulfo＠azules.eu 29 Jan '25

29 Jan '25

Hi, sorry for the potentially puzzling title. I try to figure out why \setuplayout[grid=yes] seems to insert a line break in a short formula. Is there a way of ensuring regular vertical alignment of the formula number without ‘split=line’ ? Many thanks for your help. %%% START \setuppapersize[A6,landscape] \enabletrackers[math.showmargins.less] \startsetups[math:penalties:mathincontext] \shapingpenaltiesmode \zerocount \widowpenalties 3 5000 250 100 \clubpenalties 3 5000 250 100 \stopsetups \setupformula [split=mathincontext] \starttext Text \startplaceformula \startformula c^2 = a^2 + b^2 \stopformula \stopplaceformula \setuplayout[grid=yes] \page Text \startplaceformula \startformula c^2 = a^2 + b^2 \stopformula \stopplaceformula \page Text \startplaceformula \startformula[split=line,numberlocation=overlay] c^2 = a^2 + b^2 \stopformula \stopplaceformula \disabletrackers[math.showmargins.less] \stoptext %%% END

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\setupdelimitedtext and color parameter: only the second delimiter is colored
by garulfo＠azules.eu 27 Jan '25

27 Jan '25

Is this the expected behaviour? From an observation from https://wiki.contextgarden.net/Text_blocks/Environments/Quotes#Directly \starttext \quote{Some text} \setupdelimitedtext [quote] [color=red] \quote{Some text} \setupdelimitedtext [quote] [symcolor=red] \quote{Some text} \stoptext

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[ page setup ]
by vm 26 Jan '25

26 Jan '25

What would be the simple preferred way to define a document having not just odd and even pages but also alternating width is sets of two. e.g. two pages with width 118 mm followed by two pages of 178 mm followed by two pages with width 118 mm, ... all hints appreciated .Floris

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How to load external lua library
by krulis.tomas＠seznam.cz 25 Jan '25

25 Jan '25

Dear ConTeXt mailing list, I've been struggling with loading the sqlite external lua library. I tried the following: 1. Instaling the system package and running ConTeXt with the `--permitloadlib` option (I am running Manjaro, an arch-linux derivative: https://archlinux.org/packages/core/x86_64/sqlite/) 2. Installing the luarocks package (https://luarocks.org/modules/dougcurrie/lsqlite3) for the 5.1, 5.3 and 5.4 lua versions. I also tried to symlink the files in $HOME/.luarocks/lib/lua/{version}/lsqlite3.so to the project directory 3. I tried also setting the relevant lua paths with `eval $(luarocks path)`. The compilation always fails with an error that context can't locate the sqlite3 library. How can I load data from sqlite database during context compilation? As an MWE, I am adding the example in the documentation for the interaction with sqlite from the context garden (https://www.pragma-ade.nl/general/manuals/sql-mkiv.pdf) ```tex \starttext \startluacode require("util-sql") utilities.sql.setmethod("sqlite") require("util-sql-loggers") local loggers = utilities.sql.loggers local presets = { -- method = "sqlite", database = "loggertest", datatable = "loggers", id = "loggers", } os.remove("loggertest.db") -- start fresh local db = loggers.createdb(presets) loggers.save(db, { -- variant 1: data subtable type = "error", action = "process", data = { filename = "test-1", message = "whatever a" } } ) loggers.save(db, { -- variant 2: flat table type = "warning", action = "process", filename = "test-2", message = "whatever b" } ) local result = loggers.collect(db, { start = { day = 1, month = 1, year = 2016, }, stop = { day = 31, month = 12, year = 2116, }, limit = 1000000, -- type = "error", action = "process" }) context.starttabulate { "||||||" } for i=1,#result do local r = result[i] context.NC() context(r.time) context.NC() context(r.type) context.NC() context(r.action) if r.data then context.NC() context(r.data.filename) context.NC() context(r.data.message) else context.NC() context.NC() end context.NC() context.NR() end context.stoptabulate() -- local result = loggers.cleanup(db, { -- before = { -- day = 1, -- month = 1, -- year = 2117, -- }, -- }) \stopluacode \stoptext ``` I am sorry for the poor quality of the example, but I don't know how to add an attachment to a message in a mailing list. I have found a few references on the web and on this mailing list (https://mailman.ntg.nl/archives/list/ntg-context@ntg.nl/message/IDZBJQIXG3J…) but I wasn't able to figure out what I could be doing wrong. I found a reference that the issue might be a version mismatch, so I tested multiple lua versions. My project is about using multiple data sources in multiple formats and creating reports from them. I know I will definitely need to load YAML as well (with the `lyaml` luarocks package I guess). There's always the alternative of trying to use other programs to get the data, but I was wondering if I could leverage ConTeXt to do that directly. Thank you for any guidance on this, and I hope this message is not too long ...

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page number in margin
by Thomas Meyer 24 Jan '25

24 Jan '25

Hi folks, how is it possible to centre the page number vertically and horizontally in the outer text margin (even page on the left and odd page on the right)? Any help is welcome. Greetings Thomas

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