September 2014 - ntg-context - NTG Mailing Lists

Main or Overall Index of a series of volumes
by Rudolf Bahr 20 Sep '14

20 Sep '14

Hello All, just to plan in advance: I'd like to construct a main or overall index out of the indices of a series of rather big volumes with their own page numbering from 1 to (say) 1000. Of course the intended main or overall index should point not only to a page number, but to the corresponding volume number or title too. Is that fundamentally possible and if yes how? Greetings, Rudolf

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perfect centering of layers in a text area
by Bernd Donner 20 Sep '14

20 Sep '14

Hello, I'm converting some context from mkii to mkiv. Since the definelogo is depreciated I try to use layers to get the same result. The problem in the example below is, the text in the header - which is a table - is not perfectly centered with respect to the bottomframe. What is the reason that the table is not perfectly centered with respect to the line and what is the correct solution? Thank you, Bernd \setuppapersize[A4] \language[de] \enableregime[utf] \setuplayout[backspace=2.0cm, height=fit, width=fit, rightmarginwidth=0.0cm, leftmargin=1.8cm, footerdistance=0.0cm, rightmargindistance=0.2cm, rightmargin=1.8cm, bottom=0.5cm, leftmargindistance=0.2cm, header=0.4cm, headerdistance=0.5cm, footer=0.5cm, top=0.0cm, topspace=0.0cm, bottomspace=0.0cm] \definelayer[sabel] [x=0mm, y=0mm, width=\paperwidth, height=\paperheight, preset=lefttop] \startsetups layer \setlayer[sabel] [hoffset=0mm, voffset=0mm] {\tfx{\vbox {\bTABLE[option=stretch] \setupTABLE[rulethickness=0pt] \setupTABLE[column][1][align={right}, width=.4\textwidth] \setupTABLE[column][2][align={center}] \setupTABLE[column][3][align={left}, width=.4\textwidth] \bTR \bTD I want to be \eTD \bTD \eTD \bTD perfectly centered \eTD \eTR \eTABLE}}} \stopsetups \setupbackgrounds[header][text][bottomframe=on, setups=layer, background=sabel] \setuppagenumbering[location=] \starttext thx \stoptext

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How to get parameters in lua
by Christoph Reller 19 Sep '14

19 Sep '14

Hi, \installcommandhandler nicely provides (among others) \define<name> and \setup<name> commands. Thus it is easy to provide a key with \setup...[key=value] and to read the value of such a key with \<name>parameter{key}. My question is: How do I read the value of a key defined with \setup...[key=value] on the lua side? If I use context.<name>parameter("key") then the value of key is printed directly. I want to be able to read that value and use it in lua with something like myvariable = context.?whatfunction?("key") Here is some example code: \unprotect \startluacode function myfun(parameters,content) context("From lua: Parameters: ") context(parameters) context.elemparameter("gkey") -- directly prints the parameter context.par() end \stopluacode \installnamespace{elem} \installcommandhandler \????elem {elem} \????elem \appendtoks \setuevalue{\currentelem}{\elem_cmd{\currentelem}}% \to \everydefineelem \unexpanded\def\elem_cmd#environment{% \edef\currentelem{#environment}% \dosingleempty\elem_cmd_parameters} \def\elem_cmd_parameters[#parameters]#content{% \setupcurrentelem[#parameters] From \TeX\: Parameters: key=\elemparameter{key}, gkey=\elemparameter{gkey}\par \ctxlua{myfun(\!!bs#parameters\!!es,\!!bs\normalunexpanded{#content}\!!es)} } \defineelem[base] \setupelem[gkey=gval] \protect \starttext \base[key=val]{Hello} \stoptext Thank you for any feedback, Christoph Reller

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bug in hyphenation?
by Pablo Rodriguez 18 Sep '14

18 Sep '14

Dear list, I have a simplified verson of the sample I submitted to the list almost a week ago: \setuppapersize[A8] \starttext \startlinenumbering \hsize\zeropoint sentence sentence sentence \stoplinenumbering \hsize\zeropoint sentence sentence sentence \stoptext I’m afraid that line numbering is preventing right hyphenations. Could anyone be so kind to confirm whether this is a bug or I am missing something? Many thanks for your help, Pablo -- http://www.ousia.tk

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Permissible characters in ConTeXt reference labels
by Mark Szepieniec 18 Sep '14

18 Sep '14

I'm trying to fix a problem in pandoc (see https://github.com/jgm/pandoc/pull/1589) where it doesn't properly sanitize the reference labels in ConTeXt output, causing errors during compilation when a label contains '#' for example. Note that this sanitizing is needed in addition to the regular backslash escaping used for control characters: '\#' is still illegal in a label for example. In the sanitizer function I'm writing, I'd like to properly escape all illegal characters, but I couldn't find an explicit list of allowed or illegal characters. Based on some testing I've conducted (see attached file), I've arrived at the following set: \#[]",{}%()|= 1) Does this look like a reasonable set? Are there other characters or sequences that should be included, or are worth testing? 2) I was told (see https://groups.google.com/forum/#!topic/pandoc-discuss/tYpXMUkmbEY) that if the characters " and , didn't work, it would count as a ConTeXt bug, is there any truth to that? Please let me know if any further info is needed on my part. 3) Does anyone see issues with this general approach? I'm relatively new to ConTeXt, so I might be missing either a huge problem, or an obviously easier way to do this. Thanks, Mark

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Change linewidth of a table
by Fabrice Couvreur 17 Sep '14

17 Sep '14

Hi, How to complete the grid ? Thank you. Fabrice \setuppapersize[A4] \setuplayout[ backspace=5mm, width=middle, topspace=5mm, height=middle, header=0pt, footer=0pt, ] \definetypeface [me] [rm] [serif] [pagella] [default] \definetypeface [me] [ss] [sans] [dejavu] [default] \definetypeface [me] [mm] [math] [xits] [default] \setupbodyfont[me,12pt] \startsetups[table:initialize] \setupTABLE[height=2.25cm,width=2.25cm] \setupTABLE[column][1,4,7][frame=off,rulethickness=1.2pt,leftframe=on] \setupTABLE[column][9][frame=off,rulethickness=1.2pt,rightframe=on] \setupTABLE[row][9][frame=off,rulethickness=1.2pt,bottomframe=on] \setupTABLE[row][1,4,7][frame=off,rulethickness=1.2pt,topframe=on] \setupTABLE[start][align={middle,lohi}] \stopsetups \starttext \startmidaligned \switchtobodyfont[small] \bTABLE[setups=table:initialize] \bTR \bTD \eTD \bTD $\sqrt{25}$ \eTD \bTD \eTD \bTD Partie entière de $\pi$ \eTD \bTD \eTD \bTD $\frac{48}{8}$ \eTD \bTD \eTD \bTD \eTD \bTD 5 augmenté de 40\,\% \eTD \eTR \bTR \bTD \eTD \bTD \eTD \bTD \eTD \bTD \eTD \bTD $4\sqrt{4}$ \eTD \bTD Le double de $\frac{15^3 \times 2^2}{5^2 \times 6^3}$\eTD \bTD \eTD \bTD Nombre premier pair \eTD \bTD Nombre de faces d'une pyramide à base triangulaire \eTD \eTR \bTR \bTD \eTD \bTD 30\,\% de 30 \eTD \bTD $2^3$ \eTD \bTD Opposé de $(5-9)$\eTD \bTD Nombre d'axes de symétrie d'un rectangle \eTD \bTD \eTD \bTD Nombre de faces d'un cube \eTD \bTD \eTD \bTD \eTD \eTR \bTR \bTD$\frac{\sqrt{324}}{2}$ \eTD \bTD \eTD \bTD $27^0$ \eTD \bTD \eTD \bTD \eTD \bTD Numérateur de la fraction irréductible égale à $\frac{9\,261}{33\,957}$ \eTD \bTD L'inverse de $\sin{\unit{30 degree}}$\eTD \bTD\eTD \bTD PGCD de 11\,760 et de 2\,574\eTD \eTR \bTR \bTD \eTD \bTD $\sqrt{25-9}$ \eTD \bTD \eTD \bTD \eTD \bTD \eTD \bTD \eTD \bTD \eTD \bTD $\frac{10^{-2}}{0.01}$\eTD \bTD\eTD \eTR \bTR \bTD$\frac{125}{25}$ \eTD \bTD \eTD \bTD Quatrième nombre premier \eTD \bTD $\sqrt{1}\times \sqrt{4}$\eTD \bTD Nombre de diviseurs de 20 \eTD \bTD \eTD \bTD Numérateur de $\frac{7}{4}-\frac{1}{2}+\frac{5}{8}-\frac{3}{4}$\eTD \bTD \eTD \bTD $\left(2\sqrt{2}\right)^2$ \eTD \eTR \bTR \bTD Le quart du seizième de $256$\eTD \bTD \eTD \bTD Nombre de côtés d'un pentagone\eTD \bTD \eTD \bTD L'opposé de la différence du tiers de $21$ et du carré de $4$ \eTD \bTD \eTD \bTD Nombre d'axes de symétrie d'un triangle équilatéral\eTD \bTD Nombre de sommets d'un cube\eTD \bTD\eTD \eTR \bTR \bTD \eTD \bTD $\frac{\left(2\sqrt{3}\right)^2}{12}$\eTD \bTD \eTD \dontleavehmode \bTD \startMPcode defaultscale:=0.8; angle_radius:=4pt; def mark_rt_angle(expr a, b, c)= draw((1,0)--(1,1)--(0,1)) zscaled (angle_radius*unitvector(a-b)) shifted b enddef; def midpoint(expr a, b) = (.5[a,b]) enddef; u:=0.4cm; path p; z0=(0,0); z1=(4u,0); z2=(0,3u); z3=(2u,0); z4=(0,1.5u); z5=midpoint(z1,z2); draw z0--z1--z2--cycle; mark_rt_angle(z1,z0,z2); label.bot("4",z3); label.lft("3",z4); label.urt("?",z5); \stopMPcode \eTD \bTD Solution de l'équation $4x-5=2x+9$ \eTD \bTD \eTD \bTD \eTD \bTD \eTD \bTD$\left(\frac{2}{\sqrt{2}}\right)^2$\eTD \eTR \bTR \bTD$\frac{\sqrt{192}-\sqrt{128}}{\sqrt{3}-\sqrt{2}}$ \eTD \bTD \eTD \bTD \eTD \bTD $2^{\rm ?}=2$ \eTD \bTD \eTD \bTD Nombre d'axes de symétrie d'un carré \eTD \bTD \eTD \bTD $\sqrt{81}-\sqrt{4}$\eTD \bTD\eTD \eTR \eTABLE \stopmidaligned \stoptext

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Erratic error message
by Robert Blackstone 17 Sep '14

17 Sep '14

Hi all, When typesetting my project with interaction, sometimes the processing stops after a few runs with an error message that points at an empty line in one of the chapters that normally gives no trouble. For interaction this setup is used: \setupinteraction[state=start,focus=standard,style=,color=blue,contrastcolor=] \placebookmarks[prechapter,chapter,section][prechapter,chapter,section][number=no] When I comment out the first of these two lines, in other words, without interaction, the project is processed without any problem. Sometimes, unfortunately not always, when I immediately repeat the processing with interaction, all goes well. So what is my problem? Not understanding what might be wrong, and not being able to correct things gives me a feeling of insecurity, trusting Murphy’s law to make sure that processing will fail when my deadline is approaching fast. I use mkiv on Mac OSX 10.9.4. All my standalone versions from january up to today give the same behaviour. I mostly get the following error message: (occasionally something different happens: the processing gets into some endless loop and I have to abort it) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ tex error > error on line 2314 in file TD-Ch3.tex: ! Attempt to double-free dir node 54467, ignored \page_shipouts_normal ...box \shipoutscratchbox }} \else \page_shipouts_ignor... \page_boxes_shipout ... {\box \shipoutscratchbox } \fi \setnextrealpageno \th... \page_otr_construct_and_shipout ...cted_page #1#2} \page_otr_flush_pending_co... \page_sides_output_routine_nop ...de_float_output \global \d_page_sides_vsiz... \page_sides_output_routine ..._output_routine_nop \fi \page_otr_triggered_output_routine ...and_routine \fi ... l.2314 2304 {\externalfigure[LegrenIoViLasfa]}{} 2305 {\externalfigure[LegrenIoViLasfi**]}{}%LegrenIoViLasfi* voor verbeterde versie 2306 \stopcombination 2307 2308 2309 %{\externalfigure[LegrenIoViLastot]} 2310 %Ex. 3.70 Legrenzi\index[Legrenzi]{Legrenzi, Giovanni}, aria \quote{Io vi lascio} 2311 2312 2313 Of course the major 6th should also be played upon the {\em a} in b.~3. 2314 >> 2315 2316 A number of major 6ths occur in the first section of Frescobaldi\index[Frescobaldi]{Frescobaldi, Girolamo}'s \quote{Capriccio sopra La Sol Fa Mi Re Ut} %\footnote{Frescobaldi\index[Frescobaldi]{Frescobaldi, Girolamo}, {\em Il primo libro di capricci} (Rome, 1624), ME (Milan, 1984), 9.} 2317 (\in{Ex.}[fig:FrescCaprLaSolFaMiReUtfi]).\footnote{\dcite{Frescobaldi:1984blb}, 9.} All sharps are used above respectively the descending bass progressions {\em e'}$\xrightarrow[none]${\em d'}, with {\em \sharp c''}; {\em a}$\xrightarrow[none]${\em g}, with {\em \sharp f''}, %G\sharp, 2318 and {\em B}$\xrightarrow[none]${\em A} with {\em \sharp g'}. %G\sharp. 2319 2320 2321 \placeexample[force][fig:FrescCaprLaSolFaMiReUtfi]{Frescobaldi\index[Frescobaldi]{Frescobaldi, Girolamo}, \quote{Capriccio sopra La Sol Fa Mi Re Ut}, bb.~7-15} 2322 {\externalfigure[FrescCaprLaSolFaMiReUtfi*]}%* voor compr 2323 %Ex. 3.71 Frescobaldi\index[Frescobaldi]{Frescoba ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Does anybody have any idea what is wrong here? (I should add that when I comment out or hide this passage the error moves to the next passage and so on.) Best regards, Robert Blackstone

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can not get colums to work
by Marc Spitzer 16 Sep '14

16 Sep '14

Hi, The below contex document generates a pdf when the \startcolumns and\stopcolums directives are commented out, when they are active it dies on me. I probably am doing something stupid here, but have no idea what, here is the tex and below is the error: ###### TEX start head[section][style=\bfa] \setupbodyfontenvironment[default][em=italic] \setuppapersize[A5] \starttext \startsection[title={Testing ConTeXt}] \startcolumns "I would say to the House, as I said to those who have joined this Government, I have nothing to offer but blood, toil, tears and sweat. We have before us an ordeal of the most grievous kind. We have before us many long months of toil and struggle. "You ask what is our policy. I will say, it is to wage war with all our might, with all the strength that God can give us, to wag war against a monstrous tyranny never surpassed in the dark, lamentable catalogue of human crime. "You ask what is our aim? I can answer in one word: Victory. Victory at all costs. Victory in spite of all terror. Victory however long and hard the road may be. For without victory there is no survival." hello there \stopcolumns This is my {\em first} ConTeXt document. \stopsection \stoptext ####### ERROR start marcmac:hello ms4720$ context hello_utf8.tex mtx-context | run 1: luatex --fmt="/Users/ms4720/context/tex/texmf-cache/luatex-cache/context/\ 5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en" --jobname="hello_utf8" --lua="/Users/ms4720/context/tex/texmf-cache/luatex-cache/context/\ 5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en.lui" --no-parse-first-line --c:currentrun=1 --c:fulljobname="./hello_utf8.tex" --c:input="./hello_utf8.tex" --c:kindofrun=1 --c:maxnofruns=8 "cont-yes.mkiv" This is LuaTeX, Version beta-0.79.1 (TeX Live 2014/dev) (rev 4972) \write18 enabled. (/Users/ms4720/context/tex/texmf-context/tex/context/base/cont-yes.mkiv ConTeXt ver: 2014.01.03 00:40 MKIV current fmt: 2014.9.9 int: english/english system > 'cont-new.mkiv' loaded (/Users/ms4720/context/tex/texmf-context/tex/context/base/cont-new.mkiv) system > files > jobname 'hello_utf8', input './hello_utf8', \ result 'hello_utf8' fonts > latin modern fonts are not preloaded languages > language 'en' is active (/Users/ms4720/work/marquiswhoswho.com/context_demo/hello/hello_utf8.tex{\ /Users/ms4720/context/tex/texmf-context/fonts/map/pdftex/context/mkiv-base.map} fonts > preloading latin modern fonts (second stage) fonts > typescripts > unknown library 'loc' {/Users/ms4720/context/tex/texmf/fonts/map/dvips/lm/lm-math.map}\ {/Users/ms4720/context/tex/texmf/fonts/map/dvips/lm/lm-rm.map} fonts > 'fallback modern rm 12pt' is loaded structure > sectioning > section @ level 3 : 0.0.1 -> Testing ConTeXt Underfull \hbox (badness 2269) in paragraph at lines 12--13 [][]\3>modern-designsize-12pt-rm-tf-0--0 "You ask what is our Underfull \hbox (badness 1546) in paragraph at lines 12--13 \3>modern-designsize-12pt-rm-tf-0--0 pol-icy. I will say, it Underfull \hbox (badness 1360) in paragraph at lines 12--13 \3>modern-designsize-12pt-rm-tf-0--0 strength that God can Underfull \hbox (badness 2671) in paragraph at lines 12--13 \3>modern-designsize-12pt-rm-tf-0--0 give us, to wage war Overfull \hbox (13.80435pt too wide) in paragraph at lines 12--13 \3>modern-designsize-12pt-rm-tf-0--0 against a mon-strous tyranny Underfull \hbox (badness 1655) in paragraph at lines 12--13 \3>modern-designsize-12pt-rm-tf-0--0 never sur-passed in the Overfull \hbox (6.68115pt too wide) in paragraph at lines 12--13 \3>modern-designsize-12pt-rm-tf-0--0 dark, lam-en-ta-ble cat-a-logue columns > balanced in '9 ' step(s) mtx-context | fatal error: no return code, message: luatex: execution interruptedmarcmac:hello ms4720$

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Gallery of fonts
by Procházka Lukáš Ing. - Pontex s. r. o. 16 Sep '14

16 Sep '14

Hello ConTeXtists, there are many fonts distributed with Ctx standalone (minimals). I'd like to create a "gallery" (or "preview") of fonts - one font per page (A4) with all its "kinds" (italic, bold, semibold; ss, rm, hw atc.), and a couple of sizes (10, 11, 12, 16, 24 pt). Is there a way how to create such gallery, which would walk through Ctx fonts directory (on my machine: c:\ConTeXt\tex\texmf\fonts\*) automatically? - This would allow user to have a better overview over AVAILABLE fonts and their LOOK; and the code for the gallery generator would help user to see how to use/access fonts in a Ctx document. Thanks in advance. Best regards, Lukas -- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz Bezová 1658 147 14 Praha 4 Tel: +420 241 096 751 Fax: +420 244 461 038

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lpdf.checkedkey has problem with false values
by Michail Vidiassov 15 Sep '14

15 Sep '14

Dear Developers and All, lpdf.checkedkey routine from lpdf-ini.lua has problems with accessing false boolean values, it returns them as nil. Is it by design or neglect? (I vaguely remember stumbling on this problems before, so there is a chance that I have already got the answer, but have forgotten it.) The minimal demo: \starttext \startluacode local function writebool(bv,text) if bv == true then io.write(text, " true \n") elseif bv == nil then io.write(text, " nil \n") else io.write(text, " false\n") end end local a = {} a["x"] = true a["y"] = false a["z"] = nil writebool(lpdf.checkedkey(a,"x","boolean"),"lpdf.checkedkey(a,\"x\",\"boolean\")") writebool(lpdf.checkedkey(a,"y","boolean"),"lpdf.checkedkey(a,\"y\",\"boolean\")") writebool(lpdf.checkedkey(a,"z","boolean"),"lpdf.checkedkey(a,\"z\",\"boolean\")") writebool(a.x,"a.x") writebool(a.y,"a.y") writebool(a.z,"a.z") \stopluacode TEST \stoptext It results in the following relevant output lpdf.checkedkey(a,"x","boolean") true lpdf.checkedkey(a,"y","boolean") nil lpdf.checkedkey(a,"z","boolean") nil a.x true a.y false a.z nil Note that false value was read by checkedkey as nil. Sincerely, MIchail

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