December 2018 - ntg-context - NTG Mailing Lists

Issues using publications subsystem for non-bibliographic database
by Rik Kabel 08 Dec '18

08 Dec '18

List, I am trying to use the publications subsystem to support a non-bibliographic database, as chapter 10 of mkiv-publications suggests one can. My example is a database of quotations. I have been partially successful, which is another way of saying there are some issues I have not been able to resolve. First, what goes into a specification lua file (I think that is what the document suggests I need) that says my author field should be handled as a bibliographic author field? There is some processing: {Schopenhauer, Arthur} gets displayed as ArthurSchopenhauer (with no space). Specifying an authorconversion in \setupbtx has no effect, so it looks like I have to do something else. Second, how can I link one entry to another. The example shows my almost-working attempt, adding a linking key (translation in the example) and recursively using it in processing. This fails, but when I use the literal equivalent, it works. (And the recursion does not seem to be the problem.) I know that this description is not clear, but the example should demonstrate the issue. Finally, the document loses all data from the quotation database when \placebtxrendering for that database is omitted. I apologize for the larger-than-usual example size. %{[( \startbuffer[quotesources] @book{Schopenhauer1862v2, title = {Parerga und Paralipomena}, subtitle = {Kleine Philosophische Schriften}, publisher = {A. W. Hahn}, year = {1862}, volume = {2}, volumes = {2}, author = {Arthur Schopenhauer}, editor = {Julius Frauenstädt}, address = {Berlin}, language = {german}, } @book{SchopenhauerPayne2000, title = {Parerga and Paralipomena}, subtitle = {Short Philosophical Essays}, publisher = {Oxford University Press Clarendon Press}, address = {New York and Oxford}, year = {2000}, author = {Arthur Schopenhauer}, volumes = {2}, origyear = {1974}, origlanguage= {german}, translator = {Eric F. J. Payne}, } \stopbuffer \startbuffer[quotedatabase] @quote{qSchopA02, extract = {Es wäre gut Bücher kaufen, wenn man die Zeit, sie zu lesen, mitkaufen könnte, aber man verweschelt meistens den Ankauf der Bücher mit dem Aneignen ihres Inhalts.}, author = {Schopenhauer, Arthur}, born = {1788}, died = {1860}, work = {\cite[title][sources::Schopenhauer1862v2]}, year = {1862}, location = {chapter\btxnbsp24}, translation = {\cite[tag][qPayneE01]}, attribnote = {The selection was inserted posthumously into the work, probably based on notes Schopenhauer left, by Julius Frauenstädt, his literary executor, and has appeared in different locations in various editions.}, } @quote{qPayneE01, extract = {Buying books would be a good thing if one could also buy the time to read them in: but as a rule the purchase of books is mistaken for the appropriation of their contents.}, author = {Eric F. J. Payne}, born = {1895}, died = {1983}, year = {1974/2000}, work = {\cite[title][sources::SchopenhauerPayne2000]}, page = {559}, } \stopbuffer \loadbtxdefinitionfile [apa] \usebtxdefinitions [apa] \usebtxdataset [sources] [quotesources.buffer] \definebtxrendering [sources] [apa] [group=bib, dataset=sources] \setupbtx [sources] [specification=apa, dataset=sources] \usebtxdataset [quotedb] [quotedatabase.buffer] \definebtxrendering [quotedb] [group=quotes, sorttype=cite, numbering=no, dataset=quotedb] \setupbtx [specification=quotedb, authorconversion=normalshort, dataset=quotedb] \startsetups btx:quotedb:cite:attribnote {\rm\btxfield{attribnote}} \stopsetups \startsetups btx:quotedb:cite:born {\rm\btxfield{born}} \stopsetups \startsetups btx:quotedb:cite:died {\rm\btxfield{died}} \stopsetups \startsetups btx:quotedb:cite:location {\rm\btxfield{location}} \stopsetups \startsetups btx:quotedb:cite:page {\rm\btxfield{page}} \stopsetups \startsetups btx:quotedb:cite:work {\rm\btxfield{work}} \stopsetups \startsetups btx:quotedb:cite:extract {\rm\btxfield{extract}} \stopsetups \startsetups btx:quotedb:cite:title {\rm\it\btxfield{title}} \stopsetups \startsetups btx:quotedb:list:quote \limitatetext{\btxfield{extract}}{\textwidth}{\unknown} \blank[none] -\btxspace\btxflush{author} \btxcomma\btxfield{year} \stopsetups \starttexdefinition Quotation #QUOTE \startnarrower \blank[halfline] \startparagraph \cite[extract][#QUOTE] \stopparagraph \startparagraph\noindentation \blank[halfline] \dontleavehmode\llap{– }\cite[author][#QUOTE] \btxspace \doifnotempty{\cite[born][#QUOTE]} {(\cite[born][#QUOTE]|–|\doiftext{\cite[died][#QUOTE]} {\cite[died][#QUOTE]})} \btxspace in \cite[work][#QUOTE] \doiftextelse{\cite[page][#QUOTE]} {\btxcomma p\btxperiod\btxnbsp\cite[page][#QUOTE]} {\doiftext{\cite[location][#QUOTE]} {\btxcomma \cite[location][#QUOTE]}} \btxcomma \cite[year][#QUOTE] \btxperiod \cite[attribnote][#QUOTE] \doiftext{\cite[translation][#QUOTE]} {\btxspace A translation is:} \stopparagraph \doiftext{\cite[translation][#QUOTE]} {\stopnarrower %%---------------------------------------------------------------------- %% When this form is used, the compilation fails. % % \Quotation{\cite[translation][#QUOTE]} % %% When this form is used, the compilation works, but of course, this %% form is not what is wanted. % \Quotation{qPayneE01} % %%---------------------------------------------------------------------- \startnarrower } \blank[3*halfline] \stopnarrower \stoptexdefinition \starttext \Quotation{qSchopA02} %%---------------------------------------------------------------------- %% When this form is used, the compilation fails as well, so it isn't %% the recursion that is the problem. % % \Quotation{\cite[translation][qSchopA02]} % %%---------------------------------------------------------------------- \hrule\blank %%---------------------------------------------------------------------- %% When \placebtxrendering for the quotation database is removed, %% none of the text from the database is printed, even though the %% dataset completeness shows the data % \placebtxrendering [quotedb][method=dataset] % %%---------------------------------------------------------------------- \hrule\blank \placebtxrendering [sources][method=dataset] \page \showbtxdatasetcompleteness[dataset=quotedb] \page \showbtxdatasetcompleteness[dataset=sources,specification=apa] \stoptext %)]} -- Rik

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Framed mathematics
by Mathias Schickel 07 Dec '18

07 Dec '18

Dear list, it seems that \mframed does not align properly. Compare the example fount at https://www.contextgarden.net/Framed#Location_parameter <https://www.contextgarden.net/Framed#Location_parameter> to the compiled example attached. What can I do to get a correctly aligned framed formula? Many thanks for you help, Mathias

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glyph width and bearings of a given glyph?
by Pablo Rodriguez 06 Dec '18

06 Dec '18

Dear list, how can I get the value in Lua of width and the bearings of a given glyph (such as Ὧ)? Many thanks for your help, Pablo -- http://www.ousia.tk

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question about fonts.handlers.otf.addfeature
by Pablo Rodriguez 06 Dec '18

06 Dec '18

Dear list, as far as I know, fonts.handlers.otf.addfeature has the following types: substitution, alternate, multiple, ligature, kern and chainsubstitution. Is there a type of feature that simply moves a single glyph when activated? Many thanks for your help, Pablo -- http://www.ousia.tk

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indenting after placefigure
by Hans van der Meer 06 Dec '18

06 Dec '18

I used \setupindenting[always,medium]. This works everywhere except after a figure placed with \placefigure. Why does placing the figure suppress the indent after it? And how can this behaviour be changed? dr. Hans van der Meer

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Typing Unicode subscript and superscript numbers
by Hans Åberg 06 Dec '18

06 Dec '18

Only some of the Unicode subscript and superscript numbers and signs show up in the example below in the typing and text environments, though all correct in the formula environment. — \setupbodyfont[stix,10pt] \starttext \startformula \startalign \NC 𝑨₀ 0 ₁ 1 ₂ 2 ₃ 3 ₄ 4 ₅ 5 ₆ 6 ₇ 7 ₈ 8 ₉ 9 ₊ + ₋ - ₌ = ₍ ( ₎ )\NR \NC 𝑩⁰ 0 ¹ 1 ² 2 ³ 3 ⁴ 4 ⁵ 5 ⁶ 6 ⁷ 7 ⁸ 8 ⁹ 9 ⁺ + ⁻ - ⁼ = ⁽ ( ⁾ )\NR \stopalign \stopformula \starttyping 𝑨₀ 0 ₁ 1 ₂ 2 ₃ 3 ₄ 4 ₅ 5 ₆ 6 ₇ 7 ₈ 8 ₉ 9 ₊ + ₋ - ₌ = ₍ ( ₎ ) 𝑩⁰ 0 ¹ 1 ² 2 ³ 3 ⁴ 4 ⁵ 5 ⁶ 6 ⁷ 7 ⁸ 8 ⁹ 9 ⁺ + ⁻ - ⁼ = ⁽ ( ⁾ ) \stoptyping 𝑨₀ 0 ₁ 1 ₂ 2 ₃ 3 ₄ 4 ₅ 5 ₆ 6 ₇ 7 ₈ 8 ₉ 9 ₊ + ₋ - ₌ = ₍ ( ₎ ) 𝑩⁰ 0 ¹ 1 ² 2 ³ 3 ⁴ 4 ⁵ 5 ⁶ 6 ⁷ 7 ⁸ 8 ⁹ 9 ⁺ + ⁻ - ⁼ = ⁽ ( ⁾ ) \stoptext —

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color check
by Floris van Manen 06 Dec '18

06 Dec '18

while experimenting with the sample transparency color code \definecolor [transparentred] [r=1,t=.5,a=1] \definecolor [transparentblue] [b=1,t=.5,a=1] \definecolor [solidyellow] [y=1,t=1,a=1] \starttext \startTEXpage ~This is some sample text that goes behind the rectangles\hskip-80mm \blackrule[width=18mm,height=10mm,depth=10mm,color=solidyellow]\hskip-6mm \blackrule[width=18mm,height=20mm,depth=1mm,color=transparentred]\hskip-6mm \blackrule[width=18mm,height=10mm,depth=10mm,color=transparentblue]\hskip-6mm \blackrule[width=18mm,height=20mm,depth=1mm,color=solidyellow]\hskip27mm \stopTEXpage \stoptext i get the intended result. if i change the yellow t value to .99 \definecolor [solidyellow] [y=1,t=0.99,a=1] some green layer pops up. as this is all about software, there is a reason to this. it cold be the OSX preview program too, of course. can someone explain to me ? :-) .F

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'figures.getinfo()' not to exit ConTeXt
by Procházka Lukáš Ing. 06 Dec '18

06 Dec '18

Hello, I'm using the following code, mentioned here some time ago, to get some info about PDF: ---- \startluacode figures.getinfo = function(name, page) if type(name) == "string" then name = { name = name, page = page } end if name.name then local data = figures.push(name) --figures.identify() local ok, res = pcall(figures.identify) print(">>1", ok, res) --figures.check() local ok, res = pcall(figures.check) print(">>2", ok, res) figures.pop() return data end end local data = figures.getinfo("NonExisting.pdf") \stopluacode ---- The problem is that once the PDF file doesn't exist, the function causes ConTeXt to exit, even when I enclose 'figure.check()' into the 'pcall' (to be handled like try/catch mechanism). Is there a way so that the function 'figures.getinfo()' does't exit ConTeXt, it just returns 'nil', or even gives info which directories (or even which file types) were searched? TIA. Best regards, Lukas -- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz | IDDS: nrpt3sn | IČO: 40763439 Bezová 1658 147 14 Praha 4 Mob.: +420 702 033 396

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align in setuphead
by Jan U. Hasecke 06 Dec '18

06 Dec '18

Hi all, why aligns left to right and right to left in this example? \setuphead [title] [align=left] \starttext \starttitle[title=Test] \stoptitle \stoptext TIA juh

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Ending strings with non-break space in lang-txt.lua
by Marco Patzer 06 Dec '18

06 Dec '18

Hi! I've got a few unfortunate line breaks in my documents. In particular, breaks are introduced in between the string “page” and the number: See figure 1 at page 2. The reason is that many strings in lang-txt.lua end in a space, rather than a non-break space: ["atpage"]={ ["labels"]={ … ["en"]="at page ", … I fixed this by defining \setuplabeltext [en] [atpage=at page\nbsp] So I wonder: Does it ever make sense to have a regular space at the end of those commands? I just skimmed through the file and most, if not all, strings ending in a space would actually benefit from having it replaced by a non-break space IMO. Example: \def\pageref#1%% {\in{figure}[#1] \labeltext{atpage}\at[#1]} \starttext \hsize 3cm See \pageref{foo}. \page \startplacefigure [reference=foo] \stopplacefigure \stoptext Marco

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