May 2020 - ntg-context - NTG Mailing Lists

.so libraries not working with LMTX
by Jairo A. del Rio 01 May '20

01 May '20

I've tried using some C libraries for Lua in LuaTeX: http://webserver2.tecgraf.puc-rio.br/~lhf/ftp/lua/ They work (both LuaLaTeX and ConTeXt), but when LMTX is used, the following message appears (an example with MAPM): token call, execute: ...xt/tex/texmf-context/tex/context/base/mkiv/l-package.lua:325: error loading module 'mapm' from file './mapm.so': ./mapm.so: undefined symbol: lua_settop I've compiled both with Lua 5.3.5 and Lua 5.4.0 (rc1 and rc2) and both work successfully for test.lua (command line). However, they just don't work with LMTX. Is this a bug or feature of LMTX? Thank you in advance.

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[rotate question]
by Floris van Manen 01 May '20

01 May '20

I try to introduce a per character rotation using lua. But a negative rotation angle seems to introduce a vertical offset to the base line. It might be intended, but how to get it gone? Any hints? .Floris \def\streepA{% \rotate[rotation=\ctxlua{context(math.random(1,15))}]{\|}% } \def\streepB{% \rotate[rotation=\ctxlua{context(math.random(-15,-1))}]{\|}% } \def\stapA#1{\dorecurse{#1}{\streepA}} \def\stapB#1{\dorecurse{#1}{\streepB}} \starttext \startTEXpage[offset=20mm, width=297mm] \startalignment[width]~ \dorecurse{50}{\stapA{10}\stapB{10}} \stopalignment \stopTEXpage \stoptext

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How do I get an empty line in a \framed[align=flushleft]{} item?
by Gerben Wierda 01 May '20

01 May '20

In normal TeX, when I type Aap\\\\Aap I get something like Aap Aap But inside a \framed[align=]{} the empty line disappears. How do I get it back? Minimal example: \starttext Testing\\\\Testing \page \framed[align=flushleft]{Testing\\\\Testing} \stoptext

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module article-basic interferes with \definebodyfont?
by Gerben Wierda 01 May '20

01 May '20

The following code: \enabletrackers[context.trace] %\usemodule[article-basic] \starttypescript [sans] [optima] \setups[font:fallback:sans] \definefontsynonym [Sans] [file:Optima.ttc(Optima Regular)] [features=default] \definefontsynonym [SansBold] [file:Optima.ttc(Optima Bold)] [features=default] \definefontsynonym [SansItalic] [file:Optima.ttc(Optima Italic)] [features=default] \definefontsynonym [SansBoldItalic] [file:Optima.ttc(Optima Bold Italic)] [features=default] \stoptypescript \definetypeface [optima] [ss] [sans] [optima] [default] \setupbodyfont [optima] \starttext \startMPpage[instance=doublefun] picture pic; pic := textext("\definebodyfont[14.9pt][rm][default=Regular at 14.9pt]\switchtobodyfont[14.9pt]\setupinterlinespace[16.9pt]\framed[align=center,frame=off,offset=none,width=335.350bp]{\colored[r=0.000, g=0.000, b=0.000]{\rm (Artifact)\\}}"); draw pic scaled 1.13; \stopMPpage \stoptext Produces nice Optima at 14.9pt without \usemodule[article-basic] (as above), but with \usemodule[article-basic] included, the output becomes some serif (modern?) font, but only if I use nonstandard font sizes. Took me some time to hunt this one down. I actually don’t know what article-basic does for me (I started out with an example given to me by Hans) and I don’t need it now, but I might need it later in combination with my own stuff G

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Trouble setting PDF boxes
by Jack Steyn 01 May '20

01 May '20

Hi, I am having trouble setting the PDF boxes to my desired dimensions. Suppose I have \setuppapersize[*a*][*b*]. I want CropBox = MediaBox = *b*. So far, so good: I can just use cropoffset=0mm in \setuplayout. But I want TrimBox = *a*. However, as far as I can see, I can't achieve this using trimoffset in \setuplayout unless (width of *b*) – (width of *a*) = (height of *b*) – (height of *a*), which does not hold in my case. So it looks like I need to find another way to set the TrimBox (and the BleedBox, which I want to be 3mm wider and taller than the TrimBox). Does anyone know how to do this? Best, Jack

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