ntg-context April 2017

ntg-context@ntg.nl

38 participants
67 discussions

XML inclusion
by Meer, Hans van der 12 Apr '17

12 Apr '17

The command \xmlinclude{}{}{} includes the file specified by attribute IDENTIFIER of the element located by LPATH at NODE. What I would like to do is including a bunch of .xml files where the directory to load from is given. Is this a possibility or could this be a feature added to the ConTeXt XML-processing in a new beta? Hans van der Meer

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How do I set the path to the figure cache?
by Kevin D. Robbins 11 Apr '17

11 Apr '17

By default, converted figures (m_k_i_v_foo.pdf for source figure foo.svg) are written to the same directory as the source figure. I would like all converted figures to be written instead to a cache directory in my home directory. How do I set this path? Best Regards, Kevin

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processing very big tables
by Thomas A. Schmitz 11 Apr '17

11 Apr '17

Hi all, I need some fundamental advice from experienced users: I'm processing xml and collecting the data in lua tables, which I want to typeset in some sort of table or tabular format. Typesetting requirements are fairly low, just a couple of columns that need to be nicely aligned, with the occasional horizontal overflow that should be handled gracefully (i.e. longer lines should be broken), and of course, the table has to break across pages. However, the lua tables have several thousands of entries, and I expect the final document to have around 3,000 pages. When I tried Natural Tables, I got a "TeX capacity exceeded" error, which disappeared when I tried with a smaller part of my document. So my question is: what is the most "inexpensive" way of typesetting this sort of material? One of the table environments? Which one (would xtables be better?)? Or low-level vboxes within hboxes etc.? Or just \framed within \framed? What would you suggest for this sort of material? Thanks for your insights! Thomas

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side caption top aligned on grid -- not implemented?
by Florian Grammel 08 Apr '17

08 Apr '17

At http://tex.stackexchange.com/q/362215/6819 I asked: How can I place the top line of the caption (location={left, high}) on the grid and have it align with the figure at same height. I hoped this to be solvable by some simple instructions that I just haven’t been able to figure out. But Henri Menke suggested in a comment that the mechanism might not be implemented. Is this really the case? And if so: is there any way to achieve the alignment anyway? I’d greatly appreciate any help as this is an important requirement for my present project! Best regards, Florian. ____________________________________________ Florian Grammel Copenhagen, Denmark

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get current fontstyle with lua
by MF 07 Apr '17

07 Apr '17

Hello list, I need the lua equivalent of \fontstyle, a function that returns a string like "rm", "ss", etc. A lua equivalent for \doifelse{\fontstyle}{ss}{...}{...} to write lua code like this: local fs = get_current_font_style() if fs == "ss" then ... else ... end Thanks, best greetings MF

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query re placing a float
by Alan Bowen 06 Apr '17

06 Apr '17

I have a paragraph of text and I would like to place a float to the left so that there a some lines above the float, some beside, and some below. Is there a way to do this? What I have so far breaks the paragraph in two: one before the float and one beside it (with a few lines below). If I invoke the float before the paragraph, there are no lines above the float. \starttext Quisque facilisis erat a dui. Nam malesuada ornare dolor. Cras gravida, diam sit amet rhoncus ornare, erat elit consectetuer erat, id egestas pede nibh eget odio. Proin tincidunt, velit vel porta elementum, magna diam molestie sapien, non aliquet massa pede eu diam. Aliquam iaculis. Fusce et ipsum et nulla tristique facilisis. Donec eget sem sit amet ligula viverra gravida.% \startplacefigure[title={A cow}, location={here,left}, align=middle, number=yes] {\externalfigure[cow.pdf][width=.45\textwidth]} \stopplacefigure Fusce ultrices, neque id dignissim ultrices, tellus mauris dictum elit, vel lacinia enim metus eu nunc. Quisque facilisis erat a dui. Nam malesuada ornare dolor. Cras gravida, diam sit amet rhoncus ornare, erat elit consectetuer erat, id egestas pede nibh eget odio. Proin tincidunt, velit vel porta elementum, magna diam molestie sapien, non aliquet massa pede eu diam. Aliquam iaculis. Fusce et ipsum et nulla tristique facilisis. Donec eget sem sit amet ligula viverra gravida. Etiam vehicula urna vel turpis. Suspendisse sagittis ante a urna. Morbi a est quis orci consequat rutrum. Nullam egestas feugiat felis. Integer adipiscing semper ligula. Nunc molestie, nisl sit amet cursus convallis, sapien lectus pretium metus, vitae pretium enim wisi id lectus. Donec vestibulum. Etiam vel nibh. Nulla facilisi. Mauris pharetra. Donec augue. Fusce ultrices, neque id dignissim ultrices, tellus mauris dictum elit, vel lacinia enim metus eu nunc. \stoptext Alan

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Problem loading a DLL with the latest Ctx beta
by Akira Kakuto 06 Apr '17

06 Apr '17

> I encountered problem loading WinCon.dll > (a module that I wrote and I've been using for several years) In the new lua(jit)tex, one cannot use DLL modules. See my mail in http://tug.org/pipermail/luatex/2017-March/006410.html http://tug.org/pipermail/luatex/2017-March/006413.html Reason: I could not build usable binaries for the new sources by linking dynamically lua-5.2.4 or luajit. Thus I changed to link lua-5.2.4 etc. statically. Best, Akira

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Problem loading a DLL with the latest Ctx beta
by Akira Kakuto 06 Apr '17

06 Apr '17

> How exactly do you mean to combine "ffi" and > "--shell-escape" to work with latest ConTeXt/LuaTeX? In usual luatex, ffi needs --shell-escape, since ffi is dangerous from the point of view of the security. As you know, ConTeXt allows --shell-escape, so the following works with context test.tex. % % context test.tex % \starttext \placeformula \startformula j_1(2.387) = \startluacode local ffi = require("ffi") ffi.cdef[[ double _j1(double x); ]] local mscrt = ffi.load("msvcrt") tex.print(mscrt._j1(2.387)) \stopluacode \stopformula \stoptext In the above example, a function _j1(x) in msvcrt.dll is evaluated. The msvcrt.dll must be loaded as above, because standard C library is linked statically. The following DLLs can be used without loading, because luatex knows them: SHLWAPI.dll WSOCK32.dll USER32.dll ADVAPI32.dll SHELL32.dll KERNEL32.dll WS2_32.dll GDI32.dll Note that you may not be able to use "DLL Lua Modules" in this way. I don't know details. Try various cases. Best, Akira

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frac font feature doesn't work as expected
by Ulrike Fischer 05 Apr '17

05 Apr '17

\starttext \font\test={file:linlibertine_r.otf:+frac} \test 1/2 3/4 5/6 7/8 9/10 11/12 31415/27182 1000/1000000 \stoptext gives as output ½ 3¾ 5⅚ 7⅜ 9/10 1⅟12 31415/27182 1000/1000000 (I couldn't build an example without the primitive command. After \definefontfeature[frac][frac=yes] \definefontfamily[default][rm][linuslibertineo][features=frac] context always falls back to latin modern) A similar plaintex example for xetex \font\test="[linlibertine_r.otf]:+frac" \test 1/2 3/4 5/6 7/8 9/10 11/12 31415/27182 1000/1000000 \bye gives the correct result: ¹⁄₂ ³⁄₄ ⁵⁄₆ ⁷⁄₈ ⁹⁄₁₀ ¹¹⁄₁₂ ³¹⁴¹⁵⁄₂₇₁₈₂ ¹⁰⁰⁰⁄₁₀₀₀₀₀₀ A plain tex example for luatex is broken too but differently to the context version, one gets at least the correct numbers: \input luaotfload.sty \font\test={file:linlibertine_r.otf:+frac} \test 1/2 3/4 5/6 7/8 9/10 11/12 31415/27182 1000/1000000 \bye ½ ¾ ⅚ ⅞ 9/10 1⅟12 31415/27182 1000/1000000 -- Ulrike Fischer http://www.troubleshooting-tex.de/

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Strange behaviour with spacing in itemization using "columns" vs "horizontal".
by cryo shock 05 Apr '17

05 Apr '17

Hi folks, I noticed a difference in how spacing is set after an itemization. I have the following example: ----------------------------- \starttext \startitemize[packed, joinedup, columns, two] \startitem top left item \stopitem \startitem bottom left item \stopitem \startitem top right item \stopitem \startitem bottom right item \stopitem \stopitemize Notice the size of the blank space? \startitemize[packed, joinedup, horizontal, two] \startitem top left item \stopitem \startitem top right item \stopitem \startitem bottom left item \stopitem \startitem bottom right item \stopitem \stopitemize Notice the size of the blank space? \stoptext --------------------------------- Both itemizations are the same except item order and using "columns" in the first one and "horizontal" in the second. Yet the spacing after the first itemization seems not right. Or do I oversee something? Greetings, Sebastian

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ntg-context April 2017