- ntg-context - NTG Mailing Lists

Changing decimals points to Persian ones via font features
by Mohammad Hossein Bateni 08 Aug '16

08 Aug '16

Dear list, I want to add a customized font feature to the math font, to automatically change the decimal point (unicode 0x2E) to the Arabic/Farsi version (unicode 0x66B). This will go well with the mapping from Latin digits to Farsi digits (done in a sample with mathdigits fallback). For instance, I want to code in $123.45$ and get a result like ۱۲۳٫۴۵. However, I do not want to simply map 0x2E to 0x66B, because then "full stop" outside a number will also change. In particular, I'd like to have the mapping only when full-stop is preceded and succeeded by a digit. This will, among other things, leave the end-of-equation periods unchanged. Here is how I tried to achieve it. \startluacode digits = { 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39 } -- 0x66B instead of 0x2F gives an error! replacements = { [0x002E] = { 0x2F } } fonts.handlers.otf.addfeature { name = "mpf", type = "chainsubstitution", lookups = { { type = "multiple", data = replacements, } }, data = { rules = { { current = { { 0x002E } }, after = { digits }, before = { digits }, lookups = { 1 }, } } } } \stopluacode \definefontfeature[mathperiod][mpf=yes] \resetfontfallback [mathdigits] %\definefontfallback[mathdigits][dejavusansmono][digitsextendedarabicindic][check=yes,force=yes,offset=digitsnormal] \definefontsynonym [MathRoman][name:modern][features={math\mathsizesuffix,mathperiod},goodies=lm-math,fallbacks=mathdigits] \starttext $123.45.$ 123.45. \addff{mathperiod} 123.45. \stoptext Though this font feature works outside math, it does not seem to have any effect within the math font. Why is that? Can we add font feature to the math font? Are the character codes different? Notice that I could not get it to work, so I commented out the fallback for Persian digits, to make things simpler. To get the proof of concept, I am trying to change period to forward slash (see below). Is the syntax I use for having two features in \defontfontsynonym correct? Actually, I did try with only mathperiod and it does not work, either. When I change 0x2F (slash) to 0x066B in "replacements", I get an error as follows. fonts > otf chain > feature 'mpf', type 'gsub_contextchain', chain lookup 'mpf': rule 1 matches at char U+0002E (period) for (1,1,1) chars, lookuptype 'gsub_multiple' error: ...ext/tex/texmf-context/tex/context/base/mkiv/font-ots.lua:1232: attempt to index field '?' (a nil value) tex error > tex error on line 1 in file /Users/bateni/farsitex/context/bostan/examples/mathfa/1.tex: ? \page ->\par \dosingleempty \page_breaks_process \strc_pagenumbers_flush_final_page ...\else \page [\p_strc_pagenumbers_page ... \dostoptext ...\strc_pagenumbers_flush_final_page \page \the \everystoptext ... l.1 \dostoptext \clf_stoptext ->\luafunction \16>>clf_stoptext l.46 \stoptext Best, MHB

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luatex-0.98.0 for linux?
by Pablo Rodriguez 08 Aug '16

08 Aug '16

Dear ConTeXt maintainers, would it be possible that ConTeXt Standalone for the linux platform had the latest LuaTeX binaries? Besides the update, I think it is important to confirm whether English hyphenation is fixed in the latest binary. The following sample: \starttext \hyphenatedword{schematic} \stoptext outputs "sc-he-matic" with luatex-0.95.0. Many thanks for your help, Pablo -- http://www.ousia.tk

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drawpathoptions and drawoptions
by Mikael P. Sundqvist 08 Aug '16

08 Aug '16

Hi, I have two questions: 1) In the metafun manual I found (p 57 in the version I browse) a setting drawpathoptions. I tried with \startMPpage drawpathoptions(withcolor darkred); path p; p:= (0,0)--(1cm,1cm)--(1cm,0)--(0,1cm); draw p; \stopMPpage but the result turned out to be black. Isn't drawpathoptions available anymore, or do I misuse it? 2) If I run the code below \startMPpage drawoptions(withcolor darkred); path p; p:= (0,0)--(1cm,1cm)--(1cm,0)--(0,1cm); draw image ( draw p; draw p xshifted 2cm withcolor darkyellow; ); \stopMPpage everything gets dark red. Can I somehow change the color inside an image after setting a default color with drawoptions? If I do \startMPpage drawoptions(withcolor darkred); path p; p:= (0,0)--(1cm,1cm)--(1cm,0)--(0,1cm); draw p; draw p xshifted 2cm withcolor darkyellow; \stopMPpage I get the expected result (i.e. one darkred and one darkyellow path), but I want to use an image. /Mikael

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marking in two pass data
by Thomas A. Schmitz 08 Aug '16

08 Aug '16

Hi all, the example is kind of silly but shows my problem: I use Lua to manipulate data from xml files, and I want to typeset it as natural tables. Is it possible to set a marking within such tables so that it works in page headers? I hit a similar problem some time ago, but I'm not sure I found any good solution for it... Thanks Thomas Example: \starttext \setupTABLE [split=repeat] \definemarking [Test] \setupheadertexts [{\getmarking[Test][top]--\getmarking[Test][bottom]}] \startluacode samples = { { "A", "aesop-de.tex" }, { "B", "bryson.tex" }, { "C", "carey.tex" }, { "D", "cervantes-es.tex" }, { "E", "darwin.tex" }, { "F", "davis.tex" }, { "G", "dawkins.tex" }, { "H", "douglas.tex" }, { "I", "hawking.tex" }, } context.bTABLE() for _, k in ipairs(samples) do context.marking( { "Test" }, k[1]) context.bTR() context.bTD() context(k[1]) context.eTD() context.bTD() context.input( k[2] ) context.eTD() context.eTR() end context.eTABLE() \stopluacode \stoptext

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Access to Intermediate Document after Pre-processing
by Malte Stien 08 Aug '16

08 Aug '16

Hi all, I am working with a reasonably complex document structure, where I make heavy use of the following constructs \input (to import a number of source files) \if and \newif (to switch between different paragraphs depending on some conditions) \setvariable and \getvariable (to reuse some text in different places) So, does ConTeXt run some sort of pre-processing step that processes all of the above and which results in an intermediate document that is then type-set? And is it possible to only run this pre-processing step and get access to that intermediate document? I am asking as I have some Ruby scripts that take ConTeXt documents and convert it to another format. However, those scripts do not deal with any of the above and rather than implementing the necessary logic to deal with importing of files, conditions and variables, I thought ConTeXt does that already if only I could get access to the resulting intermediate file. Does that makes sense? Thank you, Malte. Malte Stien, PhD | Chief Technology Officer | SmartWard Pty Ltd E: malte.stien(a)smartward.com.au | W: www.smartward.com.au P: +61 (0)2 6251 1798 | M: +61 (0)413 928 895 -- Please consider the environment before printing this email --

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Nicer than 'context("\\\\")'?
by Procházka Lukáš Ing. 08 Aug '16

08 Aug '16

Hello, is there an alternative code instead of 'context("\\\\")'? See the code: ---- \starttext %\startsetups[headertext] % \startframed[width=fit,align=flushleft] % Bla\\ % Uhh % \stopframed %\stopsetups \startluacode context.startsetups{"headertext"} context.startframed{frame = "off", align = "flushright", width = "fit", } context("AB") context("\\\\") -- Not very nice here context("CD") context(true) -- Trial 1 but doesn't give the same as "\\\\" context("EF") context.crlf() -- Trial 2 but doesn't give the same as "\\\\" context("GH") context.stopframed() context.stopsetups() \stopluacode \setupheadertexts[][\directsetup{headertext}] Foo \stoptext ---- 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

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How to reset a new processor ?
by Fabrice Couvreur 08 Aug '16

08 Aug '16

Hi, I use a counter for each "Exercises" section of each chapter (Wolfgang thank you !). How to reset the counter to 1 for each section ? thank you, Fabrice \defineprocessor[ACPROCESSOR][command=\EXFRAME] \defineconversionset[ACCONVERSION][][ACPROCESSOR->n]

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Header background off with \page?
by Procházka Lukáš Ing. 08 Aug '16

08 Aug '16

Hello, the following code: ---- \setupheadertexts[Le][Ri] \setupbackgrounds[header][text][bottomframe=on] \starttext \startTEXpage \externalfigure[dummy] \stopTEXpage \page[yes,header,footer,odd] % Empty page to come here Blabla \stoptext ---- should generate an empty page. The \page[yes,header,footer,odd] suppress header and footer, which is good, and inserts one page; the problem is that header and footer background is kept and still appears. Is it a "wanted" feature? My guess is that when one uses "\page[...,header,footer...]" than suppressing header/footer background is intended, too. If the background is not suppressed automatically with "header,footer", would it be possible to implement something like "\page[...,background,...] which would suppress header and footer background (or suppress their backgrounds automatically with \page[...header...footer...])? 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

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Error in loading font Samim
by Mohammad Hossein Bateni 07 Aug '16

07 Aug '16

Hello, I believe this worked fine in June's beta but now gives an error. \starttext \definedfont[Samim] سلام \stoptext I got the font originally from here <https://github.com/rastikerdar/samim-font/releases/download/v0.11.0/samim-f…>, but then removed the MATH table because it was causing an error at the time to get the attached version. Now the above code gives the following error: ...ntext/tex/texmf-context/tex/context/base/mkiv/l-lpeg.lua:290: bad argument #2 to '__div' (invalid replacement value) stack traceback: [C]: in function '__div' ...ntext/tex/texmf-context/tex/context/base/mkiv/l-lpeg.lua:290: in function 'splitter' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otc.lua:159: in function 'addfeature' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otc.lua:730: in function 'enhancer' ...ext/tex/texmf-context/tex/context/base/mkiv/font-con.lua:1269: in function 'enhance' ...ext/tex/texmf-context/tex/context/base/mkiv/font-con.lua:1291: in function 'apply' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otl.lua:246: in function 'load' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otl.lua:538: in function 'otftotfm' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otl.lua:566: in function <...ext/tex/texmf-context/tex/context/base/mkiv/font-otl.lua:565> (...tail calls...) ...ext/tex/texmf-context/tex/context/base/mkiv/font-def.lua:304: in function 'loadfont' ...ext/tex/texmf-context/tex/context/base/mkiv/font-ctx.lua:492: in function 'loadfont' ...ext/tex/texmf-context/tex/context/base/mkiv/font-def.lua:418: in function 'read' ...ext/tex/texmf-context/tex/context/base/mkiv/font-ctx.lua:1172: in function <...ext/tex/texmf-context/tex/context/base/mkiv/font-ctx.lua:1059> Could you advise me on how to get over this issue? As far as I know, the font lacks Latin characters and is restricted to the Arabic/Farsi characters. In a more complicated example, I used dejavusans as fallback but the above MWE seemed fine, as far as I remember. Thanks, MHB

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\pdfactualtext and \char
by Henri Menke 05 Aug '16

05 Aug '16

Dear list, \pdfactualtext behaves oddly when the argument is \char. \starttext \pdfactualtext{\char`A}{B} \stoptext In the example, the actual text in the PDF is »A« even though it should be »B«. If I just use \pdfactualtext{A}{B} it works fine. Cheers, Henri

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