February 2019 - ntg-context - NTG Mailing Lists

Issue with the latest beta of context standalone
by Fabrice Couvreur 04 Feb '19

04 Feb '19

Hi, I just updated context standalone and if I compile the following file, the date does not appear anymore. Thank you Fabrice \mainlanguage[fr] \setupbackgrounds [header] [text] [frame=off, topframe=off, bottomframe=on, framecolor=, rulethickness=1pt] \defineframed [headerframed] [frame=off, height=fit, width=fit] \startsetups [headertext] \setupheadertexts [{ \startframed [headerframed] [foregroundstyle=bold] \getvariable{headertext}{title} n\high{o}\,\getvariable{headertext}{number} \stopframed }] \setupheadertexts [{ \startframed [headerframed] [align=flushleft,foregroundstyle=\ssx] \getvariable{headertext}{location}\\ \getvariable{headertext}{time} \stopframed }] [{ \startframed [headerframed] [align=flushright,foregroundstyle=\ssx] Lycée LA SALLE\\ \date[d=\getvariable{headertext}{day},m=\getvariable{headertext}{month},y=\getvariable{headertext}{year}] \stopframed }] \stopsetups \setvariable{headertext}{set}{\directsetup{headertext}} \setvariables [headertext] [title={Interrogation écrite}, number={6}, day={29}, month={01}, year={2019}, location={Seconde GTE}, time={55 minutes}] \starttext \input Knuth \stoptext

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Show the letters of the alphabet with a loop (Metapost)
by Fabrice Couvreur 04 Feb '19

04 Feb '19

The idea is to display the first 25 letters of the alphabet. The code below shows the letter a to show what I want to do. Thank you. Fabrice \starttext \startMPcode for i=0 upto 3 : for j=0 upto 3 : draw unitsquare scaled 4cm shifted (4*i*cm,4*j*cm) ; endfor ; endfor ; for i=0 upto 4 : for j=0 upto 4 : label.llft("A", (4*i*cm,4*j*cm)) ; endfor ; endfor ; \stopMPcode \stoptext

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Where to put icc color profiles
by Jan U. Hasecke 03 Feb '19

03 Feb '19

Hi all, I downloaded some color profiles and stored them in: /context/tex/texmf-context/colors/icc/profiles But they get overwritten, when I update context. Can I put color profiles in the working folder of my project. And how do I access them with setupbackend? TIA juh -- Software-Dokumentation mit Sphinx http://www.amazon.de/dp/1497448689/ Paperback: 224 Seiten

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Re: [NTG-context] About the macro path intersectionpoint path with Metapost
by Jeong Dal 03 Feb '19

03 Feb '19

Dear Fabrice, Metapost is great for drawiang figures but it is not easy for me to use it. > b:= fullcircle scaled 2cm shifted (0,-3cm); > pair A, B ; > A:= p intersectionpoint r ; > B:= p intersectionpoint r ; > path u ; > u:= A--B--cycle ; A and B are the same point. One of “r” should be changed to “q” or “b”. Then you can have a line. I also made similar errors many times too. Btw, is there any reason to add “—cycle”? Enjoy the drawing. Best regards, Dalyoung

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problem with \sym?
by Alan Bowen 03 Feb '19

03 Feb '19

Processing a table of contents with the latest standalone (ConTeXt ver: 2019.01.28 16:58 MKIV beta fmt: 2019.2.3) fails with the following message: luatex warning > hpack filter: error: ...eXt/tex/texmf-context/tex/context/base/mkiv/typo-dua.lua:422: attempt to compare number with nil tex error > tex error on line 18 in file c_Contents.tex: ? \strc_itemgroups_make_symbol_box ...mbol \fi \fi } \let \strc_itemgroups_extr... \strc_itemgroups_insert_item ...s_make_symbol_box \strc_itemgroups_make_dest... \strc_itemgroups_start_item ...groups_insert_item \dostoptagged \ifcondition... <to be read again> \dotagsetitem \sym ..._symbol \startitemgroupitem \dotagsetitem \s!symbol l.18 \sym{0.} Prolegomena to the Study of Hellenistic Astronomy This worked with the previous standalone. Alan

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Title from setupinteraction used in header
by Jan U. Hasecke 03 Feb '19

03 Feb '19

Hi all, it is quite easy to have chapters in headers and footers as shows this example. \setuppagenumbering[location=] \setupheadertexts [text] [chapter] [] [] [chapter] \setupinteraction [title={foo}, subtitle={bar}, author={Peter}, keyword={context}] \starttext \startchapter[title={chapter title},] \input lorem \stopchapter \startchapter[title={another chapter title},] \input lorem \stopchapter \stoptext How can I insert title, subtitle and author from setupinteraction into headertexts? Background: authors shall define title, subtitle etc in the product file with setupinteraction (or a better method if available). In the environment file I want to insert theses informations into headers and footers. TIA juh

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Color profile not found
by Jan U. Hasecke 03 Feb '19

03 Feb '19

I get an error when I use. \setupbackend[ format=PDF/X-3:2003, intent={Coated FOGRA39 (ISO 12647-2:2004)}, ] backend > profiles > profile specification 'Coated FOGRA39 (ISO 12647-2:2004)' loaded from '/home/juh/context/tex/texmf-context/colors/icc/context/colorprofiles.xml' backend > profiles > error, couldn't locate profile 'CoatedFOGRA39.icc' backend > profiles > invalid output intent 'Coated FOGRA39 (ISO 12647-2:2004)' I copied the file CoatedFOGRA39.icc to context/tex/texmf-context/colors/icc/profiles My setup worked before. Using the intent "ISO Coated v2 300\letterpercent\space (ECI)" I get no error. TIA juh

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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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