October 2018 - ntg-context - NTG Mailing Lists

Can anyone connect context to R or python?
by Kelley, Claire 08 Oct '18

08 Oct '18

Hi All, I am very interested in creating pdf documents using Context with calculations done in R or Python and then added into the document. If you were using traditional latex this could be accomplished through R markdown or Sweave- is there any way to connect these to Context? Best, Claire

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linking to an external PDF file
by Alan Bowen 08 Oct '18

08 Oct '18

A how-to question that has come up: Is there a way to establish to hyperlink to a specific page or footnote in an external PDF document? Alan

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OpenType optical bounds not working
by Pablo Rodriguez 08 Oct '18

08 Oct '18

Hans, I reported this issue some time ago. The new fontloader crashed when the opbd feature was invoked. That issue was fixed, but opbd is still not working, as shown in the following sample: \definefontfeature[default][default][protrusion=quality, opbd=yes] \definefontfamily[mainface][rm][Linux Libertine O] \setupbodyfont[mainface, 300pt] \setuppagenumbering[location=] \setupalign[hanging] \showframe \starttext W \stoptext Could you fix the opbd feature? Many thanks for your help, Pablo -- http://www.ousia.tk

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filling overlap ?
by Floris van Manen 07 Oct '18

07 Oct '18

Could someone point me to te way as how to fill only the overlap of three paths using metafun ? path p ; p := fullsquare xscaled 10mm yscaled 12mm superellipsed .7 ; path q ; q := fullsquare xscaled 9mm yscaled 11mm superellipsed .7 ; q := q shifted (3mm, -2mm); path r ; r := fullsquare xscaled 8mm yscaled 10mm superellipsed .7 ; r := r shifted (0mm, -4mm); draw p ; draw q ; draw r ; Thanks .Floris

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\enabletrackers[*] gives lua error.
by Ulrike Fischer 06 Oct '18

06 Oct '18

I tried to look at a font and enabled the trackers like this \enabletrackers[*] \definefont [test][name:texgyreheros] \starttext abcäöü \stoptext The context compilations fails then with ...ext/tex/texmf-context/tex/context/base/mkiv/font-oup.lua:718: attempt to call a nil value (global 'report_unicode') Imho around a week ago (when I asked about the source han font) this worked. -- Ulrike Fischer https://www.troubleshooting-tex.de/

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Need help with project: TeX capacity exceeded
by Axel Kielhorn 05 Oct '18

05 Oct '18

Hello, this is my second try to start with context and I can’t even do the first step. I’m planing to convert a large but simple document to context. The document consists of 3 Parts. Each part has several chapters. Thus I started to build a project with three products, see enclosed archive. According to my understanding I should be able to context c_01 to get one chapter context prd_A to get one product context project_ecm to get the whole book. The first two steps lead to circular inclusion and the TeX capacity error. The last step doesn’t load the products and creates no files. I got my information from https://wiki.contextgarden.net/Project_structure and think I adapted them correctly, but obviously I didn’t. I included the log files in case there is something broken with my setup. Greetings Axel

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Magic Elimination
by Sebastian Miele 05 Oct '18

05 Oct '18

ConTeXt contains a lot of magic. Is there a very plain-ish X between iniLuaTeX and MKIV, plus a tool that does the following: Given an MKIV document, reduce the document to X, especially including a solid deal of dead code and magic elimination? I.e. a tool that leaves a "How it can be done without magic directly in X". There is a tool named (la)texdef. Is there something like contextdef? What is the quickest way to find the definition of a macro (on the command line and/or in Emacs)?

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faking smallcaps font with font features and fallbacks
by mf 04 Oct '18

04 Oct '18

Hello list, i'm trying to add a smallcaps variant to the MyriadPro font, since it does not implement the smcp opentype feature. My strategy: - "transplant" the uppercase letters of the MyriadPro-Regular into the lowercase letters of the same font with a font fallback that scales down the glyphs ("FakeSansCaps" in the following source) - since the scaled down glyphs get also thinner traits, embolden them with a font feature effect ("emboldened" in the following source) to make them consistent with the "real" uppercase letters What is not working: i don't know how to map the uppercase letters to the lowercase range; i tried to specify an offset of -32 in \definefontfallback[FakeSansCaps][SansEmboldened][0x61-0x7a][rscale=.8,force=yes,offset=-32] but it does not work. Here's the minimal (not) working example: \starttypescriptcollection [myriadpro] \definefontfeature[emboldened][effect={width=0.1,delta=0.4,factor=0.3}] \starttypescript [sans] [myriadpro] \definefontsynonym [Sans] [file:MyriadPro-Regular.otf] [features=default] \definefontsynonym [SansItalic] [file:MyriadPro-It.otf] [features=default] \definefontsynonym [SansBold] [file:MyriadPro-Bold.otf] [features=default] \definefontsynonym [SansBoldItalic] [file:MyriadPro-BoldIt.otf] [features=default] \definefontsynonym [SansSlanted] [file:MyriadPro-It.otf] [features=default] \definefontsynonym [SansBoldSlanted] [file:MyriadPro-BoldIt.otf] [features=default] \definefontsynonym [SansEmboldened] [Sans] [features=emboldened] \definefontfallback[FakeSansCaps] [SansEmboldened] [0x61-0x7a] [rscale=.8,force=yes] % offset? \definefontsynonym [SansCaps] [file:MyriadPro-Regular.otf] [fallbacks=FakeSansCaps] \stoptypescript \starttypescript [myriadpro] \definetypeface [myriadpro] [ss] [sans] [myriadpro] [default] \stoptypescript \stoptypescriptcollection \usetypescript[myriadpro] \setupbodyfont[myriadpro,ss] \starttext % scaled up 4 times to appreciate the thickness compensation \scale[sx=4,sy=4]{\sc SoMe CaMeLcAsE TeXt.}\par \stoptext

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style=underbar output in export
by Rik Kabel 04 Oct '18

04 Oct '18

List, With recent betas, since a fix for tagged elements in tables, underbar processing seems to have changed (or perhaps I just noticed it after that fix). Previously, the following highlight definition worked for both pdf and export outputs: \definehighlight [Term][style={{\underbar}}] With the current betas (2018-10-02 and 2018-10-03) this no longer works for all output formats. I have tried a few variants, and the results are as follows: Using [style={{\underbar}}], the pdf output now shows no underlining, while the html export has the expected underlining. Using [style={\underbar}] or [style=\underbar] or [style=underbar], the pdf output shows the expected underlining, while the html export may show continuous underlining after the first use, and in any case eventually loses all formatting. In a large enough document, an error is generated in the html, but not in the log as far as I can tell: <div class="error">...eXt/tex/texmf-context/tex/context/base/mkiv/lxml-tab.lua:1192: backtrack stack overflow (current limit is 1000)</div> A test harness: xxx.css: highlight[detail="Term"], div.highlight.Term { display : inline ; font-style : inherit ; font-variant : inherit ; font-weight : inherit ; font-family : inherit ; color : inherit ; text-decoration : underline ; } xxx.tex: \setupbackend[export=yes] \setupexport[cssfile=xxx.css] \definehighlight[Term][style=underbar]% pdf ok, html bad %\definehighlight[Term][style={{\underbar}}]% pdf bad, html ok \starttext \dorecurse{200}{% \startparagraph \samplefile{ward} \Term{pollakis legomenon} \samplefile{bryson} \stopparagraph} \stoptext The html output of the above shows the text as a single long line and when displayed the last paragraph are run together with no formatting. For a larger recurse (250 does it for me) the error described above is triggered. As a work-around, I can enable one variant or the other based on the output mode, but clearly there is an issue here. -- Rik

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profile specification '{ISO Coated v2 300% (ECI)} ' not found in 'colorprofiles.xml, colorprofiles.lua'
by Jan U. Hasecke 03 Oct '18

03 Oct '18

I get this error when I try to compile a pdf with: \setupbackend[ format=PDF/X-3:2003, intent={ISO Coated v2 300\letterpercent\space (ECI)} ] In log: backend > profiles > setting format to 'PDF/X-3:2003' backend > profiles > forcing pdf version 1.4.0, compression level 3, object compression disabled colors > defining > supported models: gray 'true', rgb 'true', cmyk 'true', spot 'true' transparencies > support > transparency is not supported viewerlayers > viewerlayers are not supported backend > xmp > using file '/home/juh/context/tex/texmf-context/tex/context/base/mkiv/lpdf-pdx.xml' backend > profiles > profile specification '{ISO Coated v2 300% (ECI)} ' not found in 'colorprofiles.xml, colorprofiles.lua' The profile is there: ~/context/tex/texmf-context/colors/icc/profiles$ ls CoatedFOGRA39.icc Probev1_ICCv2.icc default_cmyk.icc Probev1_ICCv4.icc default_gray.icc Probev2_ICCv4.icc default_rgb.icc ps_cmyk.icc ecirgb_v2.icc ps_gray.icc ecirgb_v2_iccv4.icc ps_rgb.icc GRACoL2006_Coated1v2.icc PSRgravureMF.icc isocoated_v2_300_eci.icc PSR_LWC_PLUS_V2_PT.icc ISOcoated_v2_300_eci.icc PSR_LWC_STD_V2_PT.icc isocoated_v2_eci.icc PSR_SC_PLUS_V2_PT.icc ISOcoated_v2_eci.icc PSR_SC_STD_V2_PT.icc ISOnewspaper26v4_gr.icc SC_paper_eci.icc ISOnewspaper26v4.icc sgray.icc ISOuncoated.icc SNAP2007.icc ISOuncoatedyellowish.icc srgb.icc ISOwebcoated.icc srgb_v4_icc_preference.icc JapanColor2001Coated.icc SWOP2006_Coated3v2.icc JapanColor2002Newspaper.icc SWOP2006_Coated5v2.icc JapanWebCoated.icc UncoatedFOGRA29.icc lab.icc WebCoatedFOGRA28.icc The profile is also defined in colorporfiles.xml <profile> <filename>ISOcoated_v2_300_eci.icc</filename> <colorspace>CMYK</colorspace> <class>prtr</class> <id>FOGRA39</id> <info>ISO Coated v2 300% (ECI)</info> <checksum>e14f5db955711d914d877df35ad7a1b5</checksum> <version>24000000</version> <url>http://www.color.org</url> <outputcondition>Offset printing, according to ISO 12647-2:2004/Amd 1, OFCOM, paper type 1 or 2 = coated art, 115 g/m2, tone value increase curves A (CMY) and B (K)</outputcondition> </profile> Any hints? juh

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