March 2019 - ntg-context - NTG Mailing Lists

(huge thanks) attaching files from links
by Pablo Rodriguez 04 Mar '19

04 Mar '19

Dear list, I was about to ask how to attach a file from links and I just discovered that it works perfectly fine. \attachment[http://pragma-ade.com/general/manuals/xtables-mkiv.pdf] I just wanted to thank Hans and all developers for the awesome work with ConTeXt and LuaTeX. They are outstanding pieces of code. Sorry for not expressing this clearer and more often. Many thanks again for your work and your help, Pablo PS: I wonder whether ConTeXt/LuaTeX might do my laundry, the dishes, home cleaning or cooking... 😊. -- http://www.ousia.tk

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LuaTex on Windows PCs
by Nigel King 04 Mar '19

04 Mar '19

Hi All, I have been using ConTeXt on Macs for >20 years. Having written a particular piece of code for others to operate who have PCs, I am now stuck. I upgraded to LuaTeX some time ago as recommended on this list. IT do not seem to be able to install a working version of LuaTeX on PCs. I have directed them to ConTeXt Garden but they have had no luck. Do any of you have guaranteed pointers to a simple installation on PCs? Simple editing and creating (from ConTeXt) the PDFs is all that is required. Thanks — Nigel nigel(a)nigelking.me.uk m:07917 803879

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util-sha.lua misbehaving?
by Pablo Rodriguez 04 Mar '19

04 Mar '19

Dear list, I have the following sample: \startluacode function document.capture(cmd, raw) local f = assert(io.popen(cmd, 'r')) local s = assert(f:read('*a')) f:close() if raw then return s end s = string.gsub(s, '^%s+', '') s = string.gsub(s, '%s+$', '') s = string.gsub(s, '[\n\r]+', ' ') return s end function document.sha512(file) command_output= document.capture("sha512sum -b " .. file) context(command_output:sub(0,8)) end \stopluacode \def\shafive#1{\ctxlua{document.sha512("#1")}} \doif{\luaversion}{5.3}{\ctxlua{require("util-sha")}} \def\hashfive#1{% \ctxlua{context( utilities.sha2.hash512("#1"):sub(0,8))}} \def\hashfivefile#1{% \ctxlua{context( utilities.sha2.hash512(io.loaddata("#1")):sub(0,8))}} \def\cB{i-context.pdf} \starttext \startTEXpage[offset=2em] \tt i-context.pdf\ss: \doifelse{\luaversion}{5.3} {\hashfivefile{\cB}\\ {\rm text: }\hashfive{\cB}} {\shafive{\cB}} \stopTEXpage \stoptext Just accidentally, I discovered today (using latest beta from 2019.02.26 20:04) that file hashing may be wrong in ConTeXt. For the sake of brevity, I only use the 8 first chars. "sha512sum i-context.pdf" gives c4cc3840. Using luajittex, I get that result. But using Lua 5.3 (and util-sha.lua), I get 44241e9d. I don’t know whether my invocation of io.loaddata is wrong, since the SHA512 for the text "i-context.pdf" is 2ac2778b, which is the same result as https://duckduckgo.com/?q=sha512+i-context.pdf. After discovering that io.loaddata is from l-io.lua, I don’t know what I may be doing wrong. This is an essential feature for me in ConTeXt, since it is the way of showing the integrity of the attached files to a PDF document (mainly digitally signed documents). Could anyone tell me what I am missing here? Many thanks for your help, Pablo -- http://www.ousia.tk

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ARIAL and hebrew
by Willi Egger 04 Mar '19

04 Mar '19

Good evening! I have a little project for preparing a vocabulary for an Ivrith student. — The text should be typeset with Arial. However, when I try to use it I get the vowel points between the glyphs instead of thereunder. — So my question is, does anybody have experience with the use of Arial for typesetting Hebrew? Kinde regards Willi

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textext within ConTeXt
by Mohammad Hossein Bateni 03 Mar '19

03 Mar '19

Hi, I can't understand why the following code does not work. Could someone help me out here? \starttext \startMPpage draw textext("\convertnumber{r}{12}"); draw textext("\convertnumber{r}{" & "12" & "}"); \stopMPpage \stoptext The first draw statement works perfectly. But the second one throws out errors and complains as follows: .....test.tex: ! Missing number, treated as zero <to be read again> <argument> \number " & "12" & " \romannumerals #1->\clf_romannumerals \numexpr #1 \relax <argument> ... draw textext("\convertnumber {r}{" & "12" & "} "); \meta_process_graphic ...currentMPformat }data {#1 ;}initializations {\meta_f... \page_fitting_stop_command ...eter \c!command {#1} \page_fitting_stop_normal Is there a workaround here? Ultimately I want to replace "12" with a loop variable in MetaPost. Thanks, ~MHB

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Space between initials in bibliography
by Mikael P. Sundqvist 03 Mar '19

03 Mar '19

Hi, By default there seem to be no space between initials in bibliography (which I guess there should be?). I can get a space by adding \setupbtx[ stopper:initials={.\btxspace}, ] but I don't think that this is how the stopper is meant to be used. Do I miss some other key that I can use to get space inbetween initials? Minimal example below, and I attach the result without the setting above (no space V.I. Arnol'd) and with the setting above (space V. I. Arnol'd). /Mikael %Example \startbuffer[ref] @book {arnold, AUTHOR = {Arnold, Vladimir I.}, TITLE = {Ordinary differential equations}, SERIES = {Universitext}, NOTE = {Translated from the Russian by Roger Cooke, Second printing of the 1992 edition}, PUBLISHER = {Springer-Verlag, Berlin}, YEAR = {2006}, PAGES = {ii+334}, ISBN = {978-3-540-34563-3; 3-540-34563-9}, MRCLASS = {34-01 (34Cxx 37-01 37C10)}, MRNUMBER = {2242407}, } \stopbuffer \usebtxdataset[ref][ref.buffer] \setupbtx[dataset=ref] \definebtxrendering[ref][dataset=ref] \setupbtx[ stopper:initials={.\btxspace},%comment to show version without space ] \starttext \startTEXpage[offset=3bp] We study \cite[arnold]. \placelistofpublications[ref][method=dataset] \stopTEXpage \stoptext

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Search path for typescripts
by Rik Kabel 01 Mar '19

01 Mar '19

List, What is the proper place to put a custom typescript file to make it accessible to multiple projects? For testing I placed copies in" 1) the local directory 2) <user>/texmf/fonts 3) <installation>/tex/texmf-local/fonts/ A standard version (uncustomized) exists as part of the distribution in: 4) <installation>/tex/texmf-context/tex/context/fonts/mkiv/ luatools <typescriptfile> finds the file in 1, 4, and 2. That is, after the local directory it immediately takes the standard installation directory, never looking in the places one might store local versions meant to override the distribution files. It might get to one of those directories (<user>/texmf/fonts) if there is no standard file in the distribution, but that is not the case here. I did not see an appropriate environment variable to control this. It does not seem sensitive to TEXMF or OSFONTDIR. So, where do I place the customized typescript, or how do I tell ConTeXt where to look? -- Rik

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em-dash ligature is converted to en-dash in the generic fontloader
by Marcel Krüger 01 Mar '19

01 Mar '19

On 2/23/2019 1:50 PM, Ulrike Fischer wrote: > As reported on the dev-luatex list --- is converted to an en-dash > (instead of em-dash) if there are no spaces around the ---. > > We could now reproduce the problem also with the generic fontloader: > it appears only with mode=node. I'm using the files from 2019-02-14, > but the problem appeared first in the files from 2018-11-18): > > \font\test={file:texgyreheros-regular.otf:+tlig;mode=node;}\test > > dashes-these % gives dash > > dashes--these % gives en-dash > > dashes---these % gives en-dash WRONG > > dashes --- these % gives em-dash > > em-dashes---these % gives em-dash > > \bye > > context is not affected, there the code works fine. This issue can be fixed in the fontloader with the attached patch. Best regards, Marcel Krüger

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TeX Live 2019: attempt to call a nil value (upvalue 'isfile')
by Henri Menke 01 Mar '19

01 Mar '19

Dear list, I just installed TeX Live 2019 pretest and running context --make fails with error in callback: ...xlive/2019/texmf-dist/tex/context/base/mkiv/luat-cod.lua:194: attempt to call a nil value (upvalue 'isfile') This can easily be fixed by replacing in luat-cod.lua local isfile = lfs.isfile with local isfile = function(file) return lfs.attributes(file,"mode") == "file" end This should probably be fixed before the release. Cheers, Henri

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How to define a new language?
by Paul Hoffman 01 Mar '19

01 Mar '19

I'm trying to define a new language for use in a bilingual document, but my hyphenation patterns are being ignored and I'm sure I must be doing something wrong. I've devised a minimal example that should hyphenate between vowels but doesn't. Here's the hyphenation patterns file: ----------------------------- lang-foo.pat ----------------------------- % Hyphenation patterns for Foo. \begingroup \patterns{ a1a a1e a1i a1o a1u e1a e1e e1i e1o e1u i1a i1e i1i i1o i1u o1a o1e o1i o1o o1u u1a u1e u1i u1o u1u } \endgroup ------------------------------------------------------------------------ I tried to convert this to Lua code but couldn't figure out the right invocation of _mtxrun --script pattern --convert_. Then I wrote a minimal Context file and hoped it would pick up lang-foo.pat anyhow: ----------------------------- test-foo.tex ----------------------------- \installlanguage[foo][ spacing=broad, leftsentence=---, rightsentence=---, leftsubsentence=---, rightsubsentence=---, leftquote=\upperleftsinglesixquote, rightquote=\upperrightsingleninequote, leftquotation=\upperleftdoublesixquote, rightquotation=\upperrightdoubleninequote, date={month,\ ,day,{,\ },year}, state=stop, ] \mainlanguage[foo] \setuppapersize[A6] \setupalign[hyphenated,morehyphenation,flushleft] \starttext umleoeoikaoukkoiiaaiewuewniimoaralkokolwwuiuirmlkipetnoaeteuntoilooooamm uuuauemepokawpoieoomtkeaipeailloaukoiwaeuaewurawiueanwtaoaoemmuuonwleaue mrtmuweokmikariurtlluiraapnkowuaueolmrneraiiioeauemmaamauiiolluwrltounte aaaunnoitwueemwlniowotuauwomaupaapwtawiikiuolnrolouletouunwptoioououoael kiitinouoeolopewourtuineuaermnmmioaiuienkewuiaaklinipprurainouioiomuwokr koriiaieulkppwwieoemlipiakinppprnpaiaaekapnpatritotoeormaetualeonemlppau earoeauoiimekoilliiuomirnrwarpupieiilaaueeoaekwriummikpatakeairolwpiaoaa tniweuiineeetuiektpalukluanetoiklwnemutlonnuaalpnelpniiuiutmaoakmkoiomia ineioporrieopatakomonipiuwuiwiiaueiueoluoeaaiootwuekinkwawrrwwppilewoioo itroreraeonkeuiaawalunnueoreiaaeewknailaeomomilkruruekuonkaonwwiieunonow \stoptext ------------------------------------------------------------------------ It does seem to see lang-foo.pat: $ context --pdf test-foo.tex | fgrep patterns mkiv lua stats > loaded patterns: en::2 foo::67, load time: 0.000 But in the resulting PDF, nothing is hyphenated. (I'll post the PDF if anyone really wants to see it.) Here's my _context --version_ output: mtx-context | ConTeXt Process Management 1.02 mtx-context | mtx-context | main context file: /usr/local/context/tex/texmf-context/tex/context/base/mkiv/context.mkiv mtx-context | current version: 2018.01.19 13:42 Can someone point me to my mistake? Thanks in advance, Paul. -- Paul Hoffman <nkuitse(a)nkuitse.com>

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