ntg-context February 2017

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82 discussions

LuaTeX 1.0.3 announcement
by luigi scarso 18 Feb '17

18 Feb '17

============================================================== LuaTeX Release 1.0.3 was released 2017021514 ============================================================== This is a minor upgrade and probably this version will go on texlive. There are a couple of fixes and additions. - We added a few a few more helpers in the pdf namespace (like set|get]gentounicode, [set|get]omitcidset and set|get]decimaldigits. Some helpers were moved from the tex to the pdf namespace. - We added a build_page_insert callback for inserts so that one can for instance adapt spacing on demand. - On the agenda has been some more control over word start and end in hyphenation and this is now possible via hyphenationbounds. We also updated the manual with some more details. - An old tracker item with respect to control over spacing around math was revived and has resulted in mathsurroundmode (one can wonder how useful this is). - We improved the resolution detection in included jpeg images. - An ffi library has been added to luatex so that it is more in sync with luajittex. This permits easy and flexible loading of libraries. Our policy is to make luatex as lean as possible with no dependencies and this is a step towards that. Eventually we hope to support all relevant platforms. - The glue and skip register accessors have been improved as a step in freeing the user from glue spec management. - We added a few more getters and setters for nodes in order to get a more consistent set. - Irrelevant fields have been removed from the status table and an engine identifier has been added. - Of course there are numerous fixes and improvements but none of these have consequences for the interfaces. - The manual has been updated but will be improved over time. Have fun, Hans, Luigi, Taco

4 7

strange crash
by j. van den hoff 18 Feb '17

18 Feb '17

hi, in a pristine standalone context (installed yesterday) under ubuntu I see a seemingly consistent crash of luatex if the document contains footnotes minimal example: \starttext foo\footnote{bar} \stoptext which crashes with this output: 8<------------------------------------- tx-context | run 1: luatex --fmt="/usr/local/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en" --jobname="tt" --lua="/usr/local/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en.lui" --no-parse-first-line --c:currentrun=1 --c:fulljobname="./tt.tex" --c:input="./tt.tex" --c:kindofrun=1 --c:maxnofruns=9 "cont-yes.mkiv" This is LuaTeX, Version 1.0.3 (TeX Live 2017/dev) system commands enabled. open source > level 1, order 1, name '/usr/local/context/tex/texmf-context/tex/context/base/mkiv/cont-yes.mkiv' system > system > ConTeXt ver: 2017.01.27 14:39 MKIV beta fmt: 2017.2.15 int: english/english system > system > 'cont-new.mkiv' loaded open source > level 2, order 2, name '/usr/local/context/tex/texmf-context/tex/context/base/mkiv/cont-new.mkiv' close source > level 2, order 2, name '/usr/local/context/tex/texmf-context/tex/context/base/mkiv/cont-new.mkiv' system > files > jobname 'tt', input './tt', result 'tt' fonts > latin modern fonts are not preloaded languages > language 'en' is active open source > level 2, order 3, name '/home/myusername/tt/tt.tex' fonts > preloading latin modern fonts (second stage) fonts > 'fallback modern-designsize rm 12pt' is loaded mtx-context | fatal error: no return code, message: luatex: execution interrupted 8<------------------------------------- while without the footnote it does compile just fine (the same happens in more complicated documents: crashes until last footnote is removed, then it compiles...). I am not an experienced context user, but don't see that I could have done much wrong in installing context in the first place (notably, the search path seems correct). any idea what's going on here? thx/joerg -- Using Opera's revolutionary email client: http://www.opera.com/mail/

8 26

(natural) TABLE bug?
by Alan Braslau 17 Feb '17

17 Feb '17

MWE: \starttext \bTABLE [offset=0pt,columndistance=1em] \bTR \bTD[nc=2] header \eTD \bTD 3 \eTD \eTR \bTR \bTD 1 \eTD \bTD 2 \eTD \bTD 3 \eTD \eTR \eTABLE \stoptext The columndistance is ignored after [nc=2]. Is this a bug? Alan

1 0

\externalfigure question
by j. van den hoff 17 Feb '17

17 Feb '17

I am unsure about the "canonical" way to scale images to the desired size. my current understanding is, that `scale=' should do what I want in a way portable across `context' incarnations. so currently I use commands like \externalfigure[image.png][scale=750] to adjust the image size to my taste. my problem: the same document looks completely different regarding image size in the produced pdf with standalone installations on osx64 and linux-64. actually, on oxx64 I have to use something like `scale=1500' where on linux-64 `scale=750' seemingly does about the same. questions: * what am I missing? why does the same document compile differently? I can only guess that `context' (or luatex?) has two different opinions of dpi resolution on the two machines when producing the pdf? where can I control/check this? * if `scale=' is not the way to achieve invariant and unambiguous size of images embedded in the document, what is? `width=XXX cm'? i.e.: how is this supposed to be done correctly(TM)? thx/joerg -- Using Opera's revolutionary email client: http://www.opera.com/mail/

4 10

labeltext via lua
by Andreas Schneider 17 Feb '17

17 Feb '17

Hello, if I define a labeltext via \setuplabeltext[en][test=Something], how can I access that value via lua? (context.labeltext obviously prints the content, but doesn't allow me to use it in lua). As a related side-request: how can I fix expansion in cases like this: \startsectionlevel[title=\labeltext{test}] ... this causes the bookmark to read "test" instead of "Something". \expandafter\startsectionlevel... didn't cut it. Best regards Andreas

2 6

png and svg backend in mplib embedded in luatex
by luigi scarso 17 Feb '17

17 Feb '17

We are planning to drop the png and svg backend of mplib embedded in luatex . This means that if test.lua uses the png or svg backend $>luatex --luaonly test.lua will not work anymore as expected. To be clear:, *) metapost and mplib will stay as is now; *) mplib when embedded in luatex will loose the png and svg backend. ConTeXt doesn't use the png and svg backend, and it seems that LuaLateX doesn't use these backend too. So....does anybody use the png or svg backend of mplib embedded in luatex ? -- luigi

1 0

Section 1.2)-3
by Procházka Lukáš Ing. 16 Feb '17

16 Feb '17

Hello, how to \setuphead to produce numbers like "1.2)-3"? ---- \setuphead[section][] \setuphead[subsection][] \setuphead[subsubsection][] \section{Sec} % To give "1. Sec" \subsection{SSec} % To give "1.1) SSec" \subsubsection{SSSec} % To give "1.1)-1. SSSec" ---- Best regards, Lukas -- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz | IDDS:nrpt3sn Bezová 1658 147 14 Praha 4 Tel: +420 241 096 751 (+420 720 951 172) Fax: +420 244 461 038

1 0

yearly current
by Hans Hagen 15 Feb '17

15 Feb '17

Hi, We're getting close to tex live freeze and part of that process is a luatex release as well as a context snapshot. There have been no betas for a while and the reason is that I've been cleaning up some code as well as optimizing some bits. As a consequence it could be that there are some issues with an upcoming luatex / context pair but because there has been no real fundamental changes in the typesetting part problems will be easy to sort out (like using an undefine lua function or so). Anyway, if you are not that adventurous or depend on the current version, you can best make a copy or not update from the garden too eager, just wait till the lists reports no crashes. We will try to fix luatex/context things as fast as possible, Hans Luigi ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

2 3

Customize a table with Metafun
by Fabrice Couvreur 15 Feb '17

15 Feb '17

Hello, In the code below, the red vertical line extends beyond the edges of the cell. Thank you Fabrice \startuniqueMPgraphic{Vertical} linecap:=squared ; path p ; p := unitsquare xyscaled (OverlayWidth,OverlayHeight) ; drawoptions (withpen pencircle withcolor \MPcolor{red}) ; draw .5[llcorner p, lrcorner p]--.5[ulcorner p, urcorner p] ; setbounds currentpicture to p ; \stopuniqueMPgraphic \defineoverlay[Vertical][\uniqueMPgraphic{Vertical}] \startsetups[table:initialize] \setupTABLE[start] [align={middle,lohi},offset=0.5ex,width=1.5cm, foregroundstyle={\switchtobodyfont[10pt]}] \setupTABLE[1][2][background=Vertical] \stopsetups \starttext \startlinecorrection[blank] \startmidaligned \bTABLE[setups=table:initialize] \bTR \bTD \math{\red 0 {\rm (A)}} \eTD \bTD \math{+\infty} \eTD \eTR \bTR \bTD \eTD \bTD \math{+\infty} \eTD \eTR \eTABLE \stopmidaligned \stoplinecorrection \stoptext

2 2

defining bug not setting up blank spaces
by Pablo Rodriguez 14 Feb '17

14 Feb '17

Dear list, I have the following sample: \defineblank[ab][none] \starttext \defineblank[ab][big] a \blank[ab] b \stoptext Am I missing something or is there a reason to force the new definition (instead of the setup) of already defined blank spaces? I mean, if this isn’t a bug, I don’t see the gain in this behavior. Many thanks for your help, Pablo -- http://www.ousia.tk

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ntg-context February 2017