April 2016 - ntg-context - NTG Mailing Lists

Support for Optional Content Groups
by Chris Chapman 22 May '16

22 May '16

I am new to ConTeXt (coming from LaTeX), and am really impressed. Great work! I am working on a document that has layers that I want to be screen-only, similar in approach to this: http://tex.stackexchange.com/questions/167846/implementing-full-page-screen… I am assuming that Optional Content Groups would be the best way to do this. How would I set something up like this in ConTeXt/LuaTeX? I know I could make a screen-only version and a print version of the output pdf, but I want to have my cake and eat it too ;) Thanks in advance, Chris Chapman

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new features
by Hans Hagen 22 May '16

22 May '16

Hi, (mostly for Thomas) In the next beta: When you include files in another file (using xmlinclude) we now register what gets included. There are two new commands: \xmlinclusion{#1} : the current inclusion \xmlinclusions{#1} : a list of inclusions the first one backtracks till it find a name and the second one will locate the root if needed. This option can be handy for tracing (i.e. seeing where input comes from). Another addition is that \definemode[something][keep] define an undefined mode; the keep makes sure that the already set value is kept (another option is 'yes'). Using defined modes (that is, set with: \enabledmode, \disablemode or \definemode) can be tested about twice as fast as undefined modes which can make a small difference when modes are tested lots of times. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

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bibliography tool
by Gour 22 May '16

22 May '16

I was browsing docs in the contextgarden but not sure what is available for handling bibliography in ConTeXt today? Afaict, RefTeX is for LaTeX only, I recall there was(is). (My dev environment is Debian Linux/Emacs/AUCTeX.) Sincerely, Gour -- Whatever action a great man performs, common men follow. And whatever standards he sets by exemplary acts, all the world pursues.

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uppercase, small caps, numerals and German capital sharp s
by Thomas Fehige 19 May '16

19 May '16

Hello, I'm new to ConTeXt and this list. After a long time of using LaTeX and xeLaTeX I was finally lured into trying ConTexT by its ability of grid typesetting. Today's problem is a bit complex. In a book project I have several points where stuff is capitalized or turned into caps+smallcaps or pure smallcaps. My guess is that that should work either with \WORD{Stuff}, \Cap{Stuff} and \cap{Stuff} or with \uppercase, \sc, and {\sc\lowercase{Stuff}}. (Not quite, it seems) I'll use a commercial font called Calluna, but have added Linux Biolinum O to the example for those who don't want to download Calluna (the "Regular" can be "bought" for free, e.g. at https://www.fontspring.com/fonts/exljbris/calluna) Both Calluna and Biolinum contain the glyph "LATIN CAPITAL LETTER SHARP S" at "1E9E. Calluna also has a small caps version at "F727", while Biolinum has it at "E092. I'd like to use these glyphs in the capitalizations mentioned, but that only works erratically (cf. example). Secondly, Calluna comes with oldstyle numerals switched on, which is nice for normal text, but should change to proportional lining numbers in uppercase and to small-cap proportional lining numbers in an all-small-cap text. I'm not sure what I'd want in a caps+smallcaps context, but certainly not oldstyle numerals with their descenders. Any hints and ideas? Thanks for reading! -- Thomas PS: I asked the same question on stackexchange, there's also an image of the result of my example: http://tex.stackexchange.com/questions/302823/context-uppercase-%C3%9F-cust… %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \mainlanguage[de] \language[de] \uccode`ß="1E9E % This gives the capital ß to \uppercase \definefontfeature[fcalluna][default][] % I tried all the font features built into Calluna, to no avail. \definefontfamily [myfamily] [serif][Calluna][features=fcalluna] \definefontfamily [myfamily] [sans] [Linux Biolinum O][features=fcalluna] \definefontfamily [myfamily] [mono] [TeX Gyre Cursor] \setupbodyfont [myfamily] \startTEXpage[offset=10pt] \starttabulate[|l|l|l|] \NC \it Command \NC \it Calluna \NC \it Linux Biolinum \NC\NR \NC\type{\WORD{Gruß134}}: \NC\WORD{Gruß134} \NC {\ss\WORD{Gruß134}} \NC\NR \NC\type{\uppercase{Gruß134}}: \NC\uppercase{Gruß134} \NC{\ss\uppercase{Gruß134}} \NC\NR \NC\type{\sc{Gruß134}}: \NC{\sc Gruß134} \NC{\ss{\sc Gruß134}} \NC\NR \NC\type{\Cap{Gruß134}:} \NC\Cap{Gruß134} \NC{\ss \Cap{Gruß134}} \NC\NR \NC\type{\cap{Gruß134}:} \NC\cap{Gruß134} \NC{\ss \cap{Gruß134}} \NC\NR \NC\type{{\sc\lowercase{Gruß134}}:} \NC{\sc\lowercase{Gruß134}} \NC{\ss\sc\lowercase{Gruß134}} \NC\NR \stoptabulate \stopTEXpage %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

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MacOsX Mavericks and Luatex
by Pierre Bovet 19 May '16

19 May '16

Hi all! It seems that Luatex (0.76 2013/04/05) don't works with Mavericks? Thank's in advanced for your help and testimonies Best wishes -- Pierre Bovet Documentaliste technique | Chargé de sécurité CFST Tel : +41 (0) 26 401 61 56 Courriel : pierre67(a)me.com

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Overlays as background in textbackground
by Marco Patzer 18 May '16

18 May '16

Hi, overlays are not displayed when used as a background for textbackground. Is this a bug or are overlays not supported? \defineoverlay [myoverlay] [\ssd Foo] \definetextbackground [mybackgroundColour] [background=color, backgroundcolor=gray] \definetextbackground [mybackgroundOverlay] [background=myoverlay] \starttext %% overlay works \framed [background=myoverlay, align=normal] {\input knuth\par} %% background=color works \startmybackgroundColour \input knuth \stopmybackgroundColour %% overlay is missing \startmybackgroundOverlay \input knuth \stopmybackgroundOverlay \stoptext Marco

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halign broken
by Meer, H. van der 16 May '16

16 May '16

There seems something very much amiss with \halign in later ConTeXt versions. This typesets fine in PlainTeX and is an example taken from a textbook. \tabskip=1em\halign{% \hfil\it#\hfil&\hfil#\hfil&#&\hfil#\crA&B&C&D\cr} Also in contextversion 2012.05.30 (from a TeXlive distribution). But it fails at least in ConTeXt ver: 2013.03.20 10:34 MKIV and in ConTeXt ver: 2013.04.16 12:08 MKIV beta with the following error ! Only one # is allowed per tab. system > tex > error on line 5 in file fixedwidth.tex: Only one # is allowed per tab ... 1 \starttext 2 contextversion=\contextversion\par 3 \tabskip=1em 4 \halign{% 5 >> \hfil\it#\hfil&\hfil#\hfil&#&\hfil#\cr 6 A&B&C&D\cr} 7 \stoptext l.5 \hfil\it#\hfil&\hfil# \hfil&#&\hfil#\cr Why? How primitive it may be, I would like to use \halign now and then. Hans van der Meer

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RTL-related bug in \startcolumns
by Mohammad Hossein Bateni 13 May '16

13 May '16

Hello, In RTL text, I use direction=left to mirror the columns. I just noticed that surprisingly section numbering will not be correct. See the MWE below, where I get "2 First" at the top of the right column and then "1 Second" in the middle of the left column. The correct numbering should be "1 First" and "2 Second." \starttext \startcolumns[n=2,direction=left] \section{First} \input knuth \section{Second} \input ward \stopcolumns \stoptext Produced using context version 2016.04.27 10:18. Thanks! —MHB

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xml expression error
by dr. Hans van der Meer 12 May '16

12 May '16

Why is there anexpression error here? I would expect that the expression number(-10000101) evaluates to a negative number taking part in the comparsion. It looks as if the minus sign is not seen as an unary minus, while -10000101 should have be evaluated by Lua's tonumber(-10000101). relevant code snippet is: \xmlfilter{#1}{lpath[number(@date) <= number(-10000101)]/command(...) xml > lpath > error in expression: number(@date) <= number(-10000101) => expr.number((ll.at and ll.at['date'])) <= expr.number(expr.child(ll,'-')10000101) Changing number(-10000101) to -10000101 does not make a difference. The @date attribute has no problem with a negative value. Hans van der Meer

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alternate to font feature file for glyph substitution ?
by jfbu 10 May '16

10 May '16

Hi, how should I go at the Plain TeX level about implementing the following glyph substitution which I formerly expressed in a font feature file: languagesystem DFLT dflt; languagesystem latn dflt; feature oneb { sub one by one.ss01; } oneb; The font is Vollkorn, a Plain LuaTeX file which worked in TL2015 would be \input luaotfload.sty \font\x="Vollkorn:script=latn;language=DFLT;+tlig;featurefile=vollkornlua.fff;+oneb;" \x 123 \bye % Local Variables: % TeX-engine: luatex % End: The glyph for digit 1 is modified and picked in stylistic set 1. I don't want to globally switch to that stylistic set, I am only interested into digit 1. My use case is more with LuaLaTeX+fontspec, but if I am explained a Plain LuaTeX approach I can at least forward to Will Robertson who maintains fontspec and cross my fingers that it trickles down back to me at some point via update of fontspec, or luatex, or luaotfload, ... Please CC to me as although I asked for (temporary) list inscription I might not yet be registered. I am aware of https://mailman.ntg.nl/pipermail/ntg-context/2016/083952.html but can't work it out from there. Jean-François

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