ntg-context April 2020

ntg-context@ntg.nl

48 participants
108 discussions

Fontfallbacks using typescripts
by Tim Steenvoorden 04 Apr '20

04 Apr '20

Hi all, I’d like to use Lucida (Type1) as my main font for text and math, but fallback on arrows from Pagella. Especially, I’d like to use the `\downzigzagarrow` which is not defined by Lucida. Although direct lookup of the zigzag symbol in Pagella works, below typescripts do not seem to work. Can somebody give me a hint? Cheers, Tim \startproduct test \definefontfallback[pagellaarrows][texgyrepagella-math][arrows][check=yes,force=yes] \definefontfallback[pagellaarrows][texgyrepagella-math][0x021AF][check=yes,force=yes] \starttypescript[math][main] \loadfontgoodies[lucida-typeone-math] \definefontsynonym[MathRoman][lucidamath@lucida-math][fallbacks=pagellaarrows] \stoptypescript \starttypescript [main] \definetypeface [main] [rm] [serif] [lucida] [default] [features=default] \definetypeface [main] [ss] [sans] [lucida] [default] [features=default] \definetypeface [main] [tt] [mono] [lucida] [default] [features=none] \definetypeface [main] [hw] [handwriting] [lucida] [default] [features=default] \definetypeface [main] [cg] [calligraphy] [lucida] [default] [features=default] \definetypeface [main] [mm] [math] [main] [default]%[fallbacks=pagellaarrows] \stoptypescript \setupbodyfont[main,9pt] $\downzigzagarrow,↯,\downarrow$ {\switchtobodyfont[pagella,10pt]↯} \stopproduct

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Compile a file embedding modules with the lmtx engine
by Fabrice Couvreur 03 Apr '20

03 Apr '20

Hi, I'm sorry but I didn't necessarily follow all the threads. I use to make my graphics Metapost or Metafun, but I also sometimes use TiKz. This file compiles with context but not with lmtx because the modules are not recognized. I am willing to use only lmtx which seems to be the future of ConteXt, but how do I do that ? Thank you. Fabrice \usemodule[tikz] \usetikzlibrary[calc] \starttext \startlinecorrection[blank] \startmidaligned \starttikzpicture \draw[fill=orange!30e,draw=orange] (0,0) rectangle (5,5); \stoptikzpicture \stopmidaligned \stoplinecorrection \stoptext

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xtable headers and handlecsv loop
by Geert Dobbels 03 Apr '20

03 Apr '20

Hello, The sample below has 2 problems I cannot find the solution for: I am reading a table from a CSV file and want to typeset it via \xtable. The xtable as defined below works, it splits over several pages, but the header does not repeat. I have seen examples in the mailing list where people put the "\startxtable.....\stopxtable" within a \placefigure, but as soon as I try this, I get an error message: "missing } or endgroup", although I doublechecked the "}" and I see no error. The other issue I have: Since xtable requires me to read the header line separately in order to put it between \startxtablehead and \stopxtablehead, I access the csv buffer twice: the first time, I only read the first line, and the second time, I read starting from the second line. My problem here is that I do not know beforehand the number of lines in the csv file. So in my second \doloopfromto I give the second argument a number high enough to be sure it reads all the lines. It works fine, but I would like to know if there is a way to read the number of lines in the csv file to use the exact number of lines, instead of guessing. \usemodule[handlecsv] \opencsvfile{systaprov2.csv} \starttext \startbuffer[loop] \startxrow \startxcell[left] \cA \stopxcell \startxcell[left] \cB \stopxcell \startxcell[left] \cC \stopxcell \startxcell[left] \cD \stopxcell \startxcell \cE \stopxcell \startxcell[left] \cF \stopxcell \startxcell \cG \stopxcell \startxcell \cH \stopxcell \doifdefined{cI}{\startxcell \cI \stopxcell} \doifdefined{cJ}{\startxcell \cJ \stopxcell} \doifdefined{cK}{\startxcell [left] \cK \stopxcell} \stopxrow \stopbuffer \setupxtable[offset=0cm, frame=off, bottomframe=on, framecolor=gray, option=stretch, align=middle] \setupxtable[head][background=color, backgroundcolor=gray, topframe=on, bottomframe=on, framecolor=black, foregroundcolor=blue] \setupxtable[left][align=right] \startxtable[header=repeat] \startxtablehead[head] \doloopfromto{1}{1}{\getbuffer[loop]} \stopxtablehead \startxtablebody \doloopfromto{2}{500}{\getbuffer[loop]} \stopxtablebody \stopxtable \stoptext

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\placenamedfloat and \setuphead[aftersection=...] broken?
by Benjamin Buchmuller 03 Apr '20

03 Apr '20

Potentially on the same lines, placing delayed element seems currently not to work properly (or the syntax has changed?). I think these features of MkIV are very elegant and useful. I’m just wondering if they are/were temporarily not working (tried on 2019.12.27 16:34 MKIV beta and the Wiki’s ConTeXt online) or have been disabled/changed for some reason? Thanks! Benjamin (1) palcenamedfloat --------------- This is the example from the Wiki: \starttext test \placefigure[somewhere:alpha][whatever]{alpha}{} test \placefigure[somewhere:beta] [whatever]{beta}{} test \placefigure[somewhere:gamma][whatever]{gamma}{} test \placefigure[somewhere:delta][whatever]{delta}{} test \placefigure{}{} in \in{figure}[whatever] bla bla \placenamedfloat[figure][*l*] \placenamedfloat[figure][gamma] \placenamedfloat[figure][beta] \stoptext (2) Footnotes at the end of each chapter ------------------------------------ Also an example from the Wiki: \startsetups chapter:after \ifcase\rawcountervalue[footnote]\relax \or \startsubject[title=Footnote] \placefootnotes \stopsubject \else \startsubject[title=Footnotes] \placefootnotes \stopsubject \fi \stopsetups \setupnotes[location=none] \setupnotation[way=bychapter] \setuphead[chapter][aftersection=\setups{chapter:after}]

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Re: [NTG-context] \setupinteraction[style=...] supersedes manual text style for \note
by Pablo Rodriguez 02 Apr '20

02 Apr '20

On 4/2/20 12:30 PM, Benjamin Buchmuller wrote: > Hi Pablo, > > thanks, this works. :) I will see if I can add this information in > the wiki at some point. > > Is there any way to figure out which styles are inherited or taken > from which setup in general? Hi Benjamin, maybe a superuser from the list knows that, but I’m afraid I only know by trial and error 😅. Pablo PS: I see that your reply to me was also carbon-copied to the mailing list, but it seems it hasn’t reached it yet. -- http://www.ousia.tk

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Lua/TeX/METAPOST/textext string issue/puzzle
by Gerben Wierda 02 Apr '20

02 Apr '20

I have lua code that generates this for METAPOST: ApplicationComponentLogo( w, h, "withcolor (0.686,1.000,1.000) withtransparency (1,0.200)", "withcolor (0.000,0.000,0.000) withtransparency (1,1.000) withpen pencircle scaled 1.000", "\{Hello\}, "&ditto&"(a)"&ditto&" [World]!") shifted (x, -y); draw pic; The string to be typeset, eventually is this: {Hello}, "(a)" [World]! So, with double quotes in the string. The function creating the actual string to pass to METAPOST (above) is this: local function mpLabelString( xmlLabelString) -- Returns a string where each " is replaced by a METAPOST compatible result, except for outer double quotes" rep = { [1] = { "\"", "\"&ditto&\"" }, } local tmpString = string.formatters( "%!tex!", xmlLabelString) return lpeg.replacer(rep):match(tmpString) end That works. Then, in METAPOST the vardef ‘ApplicationComponentLogo’ calls a vardef makeTeXLabel draw makeTeXLabel( w, h, name) shifted (w/2,0); which, for now, simplified does this: vardef makeTeXLabel( expr w, h, name) = save p; picture p ; save s; string s; s := "\framed{" & name & "}”; % s := "\type-" & name & "-"; p := textext( s); p enddef; But, this is what is in string s before it is sent to textext(): \framed {{Hello}, "(a)" [World]!} In other words, the escapes on the curly braces are lost and now the curly braces are ignored by TeX. I tried adding a doubling of the backslahes to the replacement: rep = { [1] = { "\"", "\"&ditto&\"" }, [2] = { "\\", "\\\\" }, } But then the string that is typeset (and given to textext()) becomes \framed {\\{Hello\\}, "(a)" [World]!} And the result in the output is the same. No curly braces. My route is probably to complex anyway, but what can I do for the curly braces to be actually typeset? G

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\setupinteraction[style=...] supersedes manual text style for \note
by Benjamin Buchmuller 02 Apr '20

02 Apr '20

For the following one, I’m not sure if this is the intended behaviour or not: I want to set up the “notation” and “note” style manually, which works great unless I also call \setupinteraction[state=start,style=normal] (or any other style), regardless of calling it before or after setting up “notation” or “note”. MWE (with an assortment of different note positions): % \setupinteraction[state=start,style=normal] %% uncomment and manual style for \note[] is no longer respected \setupnotes[textcolor=blue,textstyle=italic] \setupnotation[endnote][headcolor=green,numberconversion=character] \starttext This is the footnote\footnote[one]{aha} and the reference\note[one]. This is the endnote\endnote[two]{oho} and the reference\note[endnote][two]. Let's look \in[one]. \startplacefigure[title={And in this float\endnote[three]{hmm} and the reference\note[three].}] \externalfigure[cow] \stopplacefigure \page And look here \in[two]. \placenotes[endnote] \stoptext Cheers Benjamin

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Puzzle (for me)
by Gerben Wierda 01 Apr '20

01 Apr '20

I have a string with double quotes that needs to become a text in a box in METAPOST. METAPOST is used to create an image consisting of boxes and connections. Basically, the approach is now something like this: TeX: calls Lua code with \ctxlua{filename} Lua: context.startMPpage Lua: read XML. String in XML in filename read by Lua Here we know the dimensions in which the string must be typeset and wrapped around because that is also in the XML Lua: A context() call contains METAPOST code that calls a METAPOST vardef (‘draw box’) with the string as argument METAPOST: Draws box and call TeX to typeset string using textext(), returns picture object TeX: Typeset string In short: TeX, calls Lua, reads XML and executes context( MP code) that gets executed on stopMPpage MP code calls TeX which typesets the string But, if the string contains double quotes (”) this will fail in METAPOST because the double quotes in the string will be printed in METAPOST code that is created by Lua and thus mess up METAPOST. So, what can I do? G

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ntg-context April 2020