- ntg-context - NTG Mailing Lists

MetaPost shading broken with latest beta
by Adam Reviczky 24 Jun '18

24 Jun '18

Hi, Using the shading function in a metapost image the whole page is filled in instead of the figure that defines it. Minimal example as from the metafun manual 8.3.3 (http://www.pragma-ade.nl/general/manuals/metafun-p.pdf) \starttext \startMPcode fill fullsquare xyscaled (1cm,1cm) withshademethod "linear" withshadevector (1,0) withshadecolors (darkred,darkgreen) ; \stopMPcode \stoptext ConTeXt ver: 2018.06.23 12:12 MKIV beta fmt: 2018.6.23 int: english/english luatex version 1.09 with functionality level 6823, MetaPost 2.00 With this, I get a full A4 page with the shading colors. This worked until the beta 2018-06-22 16:02 and the desired output is shown when using live.contextgarden.net. Thanks, Adam

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setmemstream to use pdfe.new instead of epdf.openMemStream
by Adam Reviczky 24 Jun '18

24 Jun '18

Hi, I am using the "figures.setmemstream" for inline images and it is broken now with the latest luatex on the changes from epdf.openMemStream to pdfe.new. Although it does say "very experimental and likely to change", but can we update the call from epdf.openMemStream? Minimal example: \starttext \startluacode figures.setmemstream("inline",mime.unb64("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAAACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=")) context.externalfigure({"memstream:///inline"}) \stopluacode \stoptext or as in grph-mem.lua: -- \startluacode -- figures.setmemstream("whatever",io.loaddata("t:/sources/cow.pdf")) -- \stopluacode -- -- \externalfigure[memstream:///t:/sources/cow.pdf] -- \externalfigure[memstream:///whatever] The error message is: /usr/share/texmf/tex/context/base/mkiv/grph-mem.lua:32: attempt to index global 'epdf' (a nil value) stack traceback: /usr/share/texmf/tex/context/base/mkiv/grph-mem.lua:32: in function 'setmemstream' [ctxlua]:2: in main chunk Which points to the line of "local memstream, identifier = epdf.openMemStream(stream,#stream,name)" LuaTeX commit 6822 change was "epdf.new (aka memstreams) (HH)" ConTeXt ver: 2018.06.23 12:12 MKIV beta fmt: 2018.6.23 int: english/english luatex version 1.09 with functionality level 6823, Thanks, Adam

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MetaPost shading broken with latest beta
by Akira Kakuto 23 Jun '18

23 Jun '18

> With this, I get a full A4 page with the shading colors. > This worked until the beta 2018-06-22 16:02 and the desired output is > shown when using live.contextgarden.net. Even in the previous mtx-context | current version: 2018.06.22 15:55 I get a full A4 page with the shading colors if I use Luatex 1.09.0 Development id: 6823 The desired output is obtained if I use Luatex 1.08.0 Development id: 6731 So I think the latest experimental binary is problematic in this example. Best, Akira

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beta
by Akira Kakuto 23 Jun '18

23 Jun '18

> On Linux armhf i get with the same context and luatex: > ... 1.09.0 is varying. Please see Development id by luatex --credits Best, Akira

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beta
by Akira Kakuto 23 Jun '18

23 Jun '18

> I get the same error after the update with > > \starttext > \externalfigure[A] > \stoptext > > where A.pdf is in the current folder. I'm on windows 10. Here it works OK: LuaTeX, Version 1.09.0 Development id: 6822 Thanks, Akira

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Re: [NTG-context] Using goto in lua
by Christoph Reller 22 Jun '18

22 Jun '18

On Fri, 22 Jun 2018 13:57:05 +0200 Wolfgang Schuster <schuster.wolfgang(a)gmail.com> wrote: > > Hans gave a solution to this a while ago: > https://mailman.ntg.nl/pipermail/ntg-context/2018/090833.html > > Wolfgang Thank you Wolfgang for pointing me to this solution! Cheers, Christoph

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Using goto in lua
by Christoph Reller 22 Jun '18

22 Jun '18

Hi, As mentioned in cld-mkiv.pdf, the entire ConTeXt interface can be called from lua: This is great! Unfortunately the ConTeXt command \goto is a little problematic because goto is a lua keyword. Therefore, the following leads to a lua error: context.goto("text", { "label" }) I guess the only way to call goto from lua is context(false, "\\goto{text}[label]") Am I correct? Cheers, Christoph

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TABLE: centering splitted TABLE; suppressing vertical space btw two TABLEs
by Procházka Lukáš Ing. 21 Jun '18

21 Jun '18

Hello, I have two questions about TABLEs. Suppose having the following code: ---- \setuplayout[page] %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \starttext \startalignment[middle] \dontleavehmode \bTABLE[before=,after=,inbetween=] \bTABLEbody \dorecurse{10}{ \bTR \bTD aaa\eTD \bTD bbb\eTD \eTR } \eTABLEbody \eTABLE \crlf \bTABLE[before=,after=,inbetween=] \bTABLEbody \bTR \bTD AAA\eTD \bTD BBB\eTD \eTR \eTABLEbody \eTABLE \stopalignment % \page \startalignment[middle] \dontleavehmode \bTABLE[split=yes] \bTABLEbody \dorecurse{60}{ \bTR \bTD uuu\eTD \bTD vvv\eTD \eTR } \eTABLEbody \eTABLE \stopalignment \stoptext ---- - How to make the "uuu - vvv" table - which goes into several pages - centered on each page, like "aaa - bbb" (non splitting) table is? - How to suppress the vertical space between the last row of "aaa - bbb" table and the first row of the "AAA - BBB" table? (I'm trying to typeset some picture playing cards, so usual typographic rules don't apply here...) Any help would be appreciated. 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 Mob.: +420 702 033 396

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How to display widows/orphans
by hanak＠is-it.eu 20 Jun '18

20 Jun '18

Hello, I know, that letting context to solve all widow/orphans automatically is possible like: \startsetups[grid][mypenalties] \setdefaultpenalties \setpenalties\widowpenalties{1}{10000} \setpenalties\clubpenalties{1}{10000} \stopsetups \setuplayout[grid=yes, setups=mypenalties] or even only: \widowpenalty=10000 \clubpenalty=10000 But this solution will let the page shorter (I will get one empty line on the bottom of the page). I would prefer to solve the widow problem manually, e.g. using \looseness=-1 or \looseness=1 on some paragraphs. In order to identify the problematic pages quickly, it would be nice to see them in the log (on the console), similarly how I see e.g. overfull hboxes. If I have an overfull line, I see: pages > flushing realpage 74, userpage 74 Overfull \hbox (2.01712pt too wide) in paragraph at lines 3504--3510 Now I would like to see a widow like: pages > flushing realpage 74, userpage 74 Underfull \vbox ... Is it something like this possible? Thanks. Pavel

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xml, language, btx problems
by Thomas A. Schmitz 18 Jun '18

18 Jun '18

Hi, I have a conceptual problem integrating btx into my xml workflow. There are too many files involved, so no minimal example, but a minimal description. Root of my xml document: <document language="en"> ... </document> I have two files with btx definitions: publ-imp-deutsch.mkvi publ-imp-english.mkvi Loading one of these two should depend on the main language: \doifelse {\currentlanguage} {en} {\usebtxdefinitions [english]} {\usebtxdefinitions [deutsch]} My problem: the main language is set within the processing rules for the root of my xml document: \startxmlsetups xml:document \mainlanguage[\xmlatt{#1}{language}] \stopxmlsetups However, this implies a \starttext. And the btxdefinitions need to be loaded before \starttext, or so it seems. Which means: the processing rules for \usebtxdefinitions need to be set outside of the xml setups. But at this moment, the main language is not set yet, and the \doifelse fails. Any hints how to get out of this conundrum? Thanks, and all best Thomas

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