- ntg-context - Mailing Lists

Restarting with different engine fails
by Henri Menke 01 Feb '19

01 Feb '19

Dear list, ConTeXt allows to select the engine in the preamble with a “magic comment”. The preamble is parsed and the engine restarted with new options. The following MWE fails in the latest beta % engine=luajittex \starttext Fail \stoptext with the error message texmf-context/scripts/context/lua/mtx-context.lua:427: attempt to call a nil value (global 'restart') If I uncomment the restart function and its helpers around line 110 it works. Please fix. Cheers, Henri

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getting ConTeXt results back to Lua (for typesetting solutions at end of document)
by Sanjoy Mahajan 01 Feb '19

01 Feb '19

Dear List, I'm trying to have problem solutions automatically collected, each with its corresponding problem number, e.g. 2.3, and then typeset at the end of a document. Thus, I imagine something like \startproblem{A problem title} % Problem 1.1 A question \startsolution An answer \stopsolution \stopproblem And then the solution(s) would appear at the end (with the "1.1" remembered from when the problem was typeset): Solution to Problem 1.1. An answer It seems that buffers are the way to do this. But I cannot quite get the automatic numbering to work. The delayed evaluation and information passing between lua and ConTeXt has me confused and tangled in a knot. Below is a minimal almost-working example. The issue is in the line {\ctxlua{userdata.addTempToBuffer('#1', [==[\getnumber[problem]]==])}} which ends up putting the verbatim string "\getnumber[problem]" into the temp buffer, rather than the typeset result, which would be something like 1.1 or 1.2. I've read the cld-mkiv.pdf manual, but I must be missing a simple solution to getting ConTeXt to send back the result of \getnumber[problem]. I've also tried the analogous context.getnumber({"problem"}), though without success. Does anyone see what I am missing? Many thanks! -Sanjoy \defineenumeration[problem] [title=yes, text=Problem, way=bychapter, prefix=chapter] \defineenumeration[solution][problem] \setupenumeration [solution][text={Solution to problem}, number=no] \def\test#1{[#1]} % appendbuffer modified from Sietse Brouwer's on mailing list (Jan 15, 2013) \startluacode userdata = userdata or { } function userdata.addTempToBuffer(buffername, problem) buffers.append( buffername, '\\startsolution{' .. problem .. '}\n' .. buffers.getcontent('APPENDTEMP') .. '\n\\stopsolution\n\n' ) end \stopluacode \def\startappendbuffer[#1]% {\def\stopappendbuffer% {\ctxlua{userdata.addTempToBuffer('#1', [==[\getnumber[problem]]==])}} \dostartbuffer[APPENDTEMP][startappendbuffer][stopappendbuffer]} \starttext \chapter{One} \startproblem{Test} Test problem \startappendbuffer[soln] Solution \stopappendbuffer \stopproblem \startproblem{Test} Test problem \startappendbuffer[soln] Solution \stopappendbuffer \stopproblem \typebuffer[soln] \stoptext

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Headings vs. enumerations
by Clyde Johnston 01 Feb '19

01 Feb '19

I have a document that contains a numbered enumeration that spans 107 pages - it's a legal document where \items are clauses. I would like to put level one of the enumeration in a table of contents. I have read the available documentation but I am not clear whether I should make level one headers, whether I can utilise the \starthead in \startitemize or whether I can create a list from the level one headings to create the table of contents. How is best to tackle this problem? Thanks, Clyde MWE #1: \starttext \placecontent[alternative=c] \startitemize[n,repeat] \starthead{A heading}\stophead \startitemize[n,repeat,2*broad] \starthead{A sub-heading}\stophead \startitemize[n,repeat,3*broad] \item \input knuth \stopitemize \stopitemize \stoptext MWE #2: \starttext \placecontent[alternative=c] \chapter{A heading} \startitemize[n,repeat,2*broad] \starthead{A sub-heading}\stophead \startitemize[n,repeat,3*broad] \item \input knuth \stopitemize \stopitemize \stoptext

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New logo proposal
by Paul Schalck 31 Jan '19

31 Jan '19

Dear ConTeXt users and developers, I want to submit a new ConTeXt logo to you (link to GitLab project): https://gitlab.com/schickele/new-context-logo I made this logo in February 2018. At the time, I was planning to do some video tutorials on ConTeXt (still work in progress), and I wanted a nice looking visual clue for the thumbnails. Recently, I made a few minor tweaks and thought it would be the right time to put it out there. The logo comes in two different layouts (hexagonal and horizontal), and each layout comes in two color variations (multicolored and blue). The hexagonal layout is borrowed from the unofficial ConTeXt logo that has been around for some time. I like the idea of a clean geometrical form, and the hexagon reminds me of chemistry formulas -- one of the many application fields of ConTeXt. The seven colors have mainly an esthetic purpose. They also denote the flexibility of ConTeXt. I've added a monochromatic blue version because shiny, saturated colors are not suitable for every case, and blue is strongly associated with ConTeXt to me. Blue is also a reminder of Mark IV and LuaTeX. The letters are set in Din17 EF, which I've licensed. I like its simple shapes combined with a round and soft touch. It avoids consciously the very connoted Computer Modern and can be seen as a modernized and also Europeanized interpretation of the TeX tradition. This logo is just a humble proposal. Perhaps it is of some use to someone. It could also make someone else want to create and share his or her logo -- that would be great. I'm using ConTeXt since 2006/07 for almost everything that contains text: letters, presentations, invitations, résumés, certificates, manuals, reports, flyers, university papers, book typesetting, exercise sheets, song sheets, and I'm still amazed by how powerful, flexible and reliable it is. Thanks to the whole community -- and particularly to the Dutch wizard -- for making this possible! Greetings from Leimen, Germany Paul Schalck

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New logo proposal
by Paul Schalck 30 Jan '19

30 Jan '19

Hello again, as many critics go towards "I don't see any coherence" or "to me it's just a random bunch of colored letters" or "it's hard to read the word CONTEXT", some afterthoughts in that regard (difficulty, randomness). Personally, I like visual material that catches my attention, but does not give all away at first glance. For example a good poster or book cover. It invites me to spend time on it. And I don't have the feeling that the designer thinks I'm stupid. ConTeXt is quite sophisticated, its logo can also be a little bit more complicated than your average sportswear brand. Any color choice is arbitrary to some extend. The colors I've used cover the entire hue range and are at equal distance apart (common in multicolored designs). This denotes to me not only the flexibility, and the fun of using it, but also the comprehensiveness of ConTeXt. Not only can you use ConTeXt in very different situations, you can use it in every situation (that requires typesetting). My 2c! Greetings, Paul

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New logo proposal
by Paul Schalck 30 Jan '19

30 Jan '19

Hello, thank you all again for your reactions. A lot of interesting comments here on logo design in general and a ConTeXt logo in particular. I'm honored that the new design has found its way into the Wiki, thanks Taco! @Lukas: I like the idea. Would be worth a try. @Floris vM: I'm glad that my nemesis on the matter felt himself challenged to make his own proposal. While I think it's too minimalistic (only insiders know what 'CTX' stands for), I like your idea of the subscript 'T'. Your concept with the crosses reminded me of the visual identity of Amsterdam. I do not see, however, how it reflects better "typesetting beautiful readable typography". And it lacks some colors ,-) Greetings! Paul

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New logo proposal
by Paul Schalck 30 Jan '19

30 Jan '19

Hello, thanks for your feedback. Again, I don't want to impose or dismiss anything. I wanted to share this because I believed somebody else in the ConTeXt community could be interested. @Taco: Actually, I stumbled upon the nice ConTeXt group logo recently and was wondering who made it. To answer your questions: I tried to avoid any logic or rainbow-type color sequence to create something more unique. The first square had to be in blue and the middle area in a warm color. (I played around a lot with the color combinations.) Regarding the outside circle: I tried different variations, with and without a surrounding circle or round background, with and without rounded squares, and was most pleased with this solution. It's true, "clean and simple" can easily lead to "too informal". @Clyde J: Valid point. I use the logotype with the subscript 'E' whenever I can in inline text. @Floris vM: Font, spacing, overall appealingness. No Helvetica/Nimbus Sans, which has less meaning to me for ConTeXt than a DIN-ish/technical one. Colors are fun. If you don't see it this way, it's perfectly fine. @Alan B: I've uploaded MetaPost files of the main version. Yes, the horizontal version is not very exciting nor very TeX-aware. I made this one primarily because I wanted something small for a little GUI script. Now I think it's just superfluous. Greetings! Paul

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Re: [NTG-context] New logo proposal
by Hans Hagen 29 Jan '19

29 Jan '19

On 1/29/2019 2:01 PM, Floris van Manen wrote: >> i can imagine these numbers being language dependent .. not all languages have the X >> >> https://nl.wikipedia.org/wiki/Scrabble >> >> so you use english .. dutch is not bad either with 20 > > i agree, we need a native \scrabblescore function to add the total letter score at the end of each document typeset by context ;-) This is the scrabble coun tof the luatex manual: mkiv lua stats > scrabble count: 513167 characters with a grand total of 790781 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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\setbreakpoints[compound] inserts spurious hyphen
by Henri Menke 28 Jan '19

28 Jan '19

Dear list, When \setbreakpoints is set to the method compound, it inserts a spurious hyphen on the next line, see MWE below. This was falsely reported as an issue with the btx system on TeX.SX. https://tex.stackexchange.com/q/472041 Cheers, Henri --- \setupbodyfont[palatino,14pt] \setbreakpoints[compound] \starttext Antique astronomy was gradually replaced by the logic of counting.(Eastwood) \stoptext

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Server upgrade planned for Feb. 1
by Taco Hoekwater 28 Jan '19

28 Jan '19

Hi all, We plan to upgrade the software installation on the zapf.ntg.nl server on Friday Feb 1, 2019. As a consequence, various tex-related sites including www.ntg.nl, wiki.contextgarden.net and www.luatex.org, as well as the mailman lists @ntg.nl, will be down for some as-of-yet undetermined amount of time. We’ll try to be fast, but one never knows with these things... Best wishes, Taco

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