January 2016 - ntg-context - NTG Mailing Lists

Is there anybody from Vienna, Austria?
by Ursula Hermann 12 Jan '16

12 Jan '16

Hallo everybody! Is there anybody from Vienna, Austria, in this mailinglist? Would like to know, if anybody wants a contact.!! If this ist the wrong Mailinglist, please tell me the right adress, for this message. Thanks Uschi

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disabling ligatures in selected words
by Thomas A. Schmitz 12 Jan '16

12 Jan '16

Hi, in German typography, ligatures are disabled at boundaries between what used to be independent words (Wortfugen). Thusly, in a correct German text, you'd find Anflug (with fl-ligature) but Auf|lage (without ligature). I know that I can prevent a ligature with something like Auf\/lage or even Auf|*|lage. However, I typeset from xml and would much rather have a general solution so I can leave my generated xml files alone. Something like a list where I could list "ligature exceptions" the way we have a file with hyphenation exceptions. Is anything like this possible? Thanks Thomas

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file not found
by Meer, Hans van der 12 Jan '16

12 Jan '16

The code below did work ok some version of ConTeXt ago, now an error and I cannot think of the cause. There is an unknown file ./t. Is it origin something with the jobname mysteriously being t? Or is it perhaps that modules now have names preceded by t- ? I am completely baffled. Help would be very much appreciated because I have not much time left to finish the text. Macro for calling a context run: % Call context for figures #1 = mode, #2 = fontchoice, #3 = colorchoice, #4 = file without .tex extension. \def\callcontext[#1][#2][#3]#4{% \writestatus{HVDM}{CALLING DIRECTLUA file=#4 mode=#1 fontchoice=#2}% \directlua{os.execute("cd \FigSrc;context --once --mode=#1 --font=#2 --colors=#3 --purge #4;rm #4.tuc;cd -;mv \FigSrc/#4.pdf \FigDir")}% } HVDM > CALLING DIRECTLUA file=taalengels mode=screen,info fontchoice=lucidaot,sans,12pt\tt resolvers | trees | analyzing '/Users/hansm/Documents/TeX/texmf' mtx-context | warning: no (local) file './t', proceeding mtx-context | run 1: luatex --fmt="/Users/hansm/Applications/TeX/context-28/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en" --jobname="t" --lua="/Users/hansm/Applications/TeX/context-28/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en.lui" --no-parse-first-line --c:colors="darkslategray,darkslategray,mistyrose,darklavenderblush,peachpuff" --c:currentrun=1 --c:font="lucidaot,sans,12pt" --c:fulljobname="./t" --c:input="./t" --c:kindofrun=3 --c:maxnofruns=1 --c:mode="screen,info" --c:once --c:purge "cont-yes.mkiv" This is LuaTeX, Version beta-0.80.0 (TeX Live 2015) (rev 5238) \write18 enabled. resolvers > trees > analyzing '/Users/hansm/Documents/TeX/texmf' system > callbacks > not registering frozen 'find_format_file' open source > 1 > 1 > /Users/hansm/Applications/TeX/context-28/tex/texmf-context/tex/context/base/cont-yes.mkiv ConTeXt ver: 2015.10.09 21:28 MKIV beta fmt: 2015.10.11 int: english/english system > 'cont-new.mkiv' loaded open source > 2 > 2 > /Users/hansm/Applications/TeX/context-28/tex/texmf-context/tex/context/base/cont-new.mkiv close source > 2 > 2 > /Users/hansm/Applications/TeX/context-28/tex/texmf-context/tex/context/base/cont-new.mkiv system > files > jobname 't', input './t', result 't' fonts > latin modern fonts are not preloaded languages > language 'en' is active tex error > tex error on line 8 in file /Users/hansm/Applications/TeX/context-28/tex/texmf-context/tex/context/base/cont-yes.mkiv: ! I can't find file `./t'. Hans van der Meer

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ConTeXt on ARM architecture raspberry pi
by Jan U. Hasecke 12 Jan '16

12 Jan '16

Hi, has anyone installed ConTeXt on a Raspberry Pi? juh -- Das ZEN von Pandoc Bücher und E-Books einfach und professionell produzieren http://www.amazon.de/Das-ZEN-von-Pandoc-professionell/dp/1505218799/ Paperback (232 Seiten) und E-Book

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Paragraph breaking bug with BiDi text
by Mohammad Hossein Bateni 11 Jan '16

11 Jan '16

Hello, When a line ends with a sequence whose direction differs from that of the paragraph, we risk pushing some text into the margin (when not necessary). Here is an example with corresponding output: \usemodule[simplefonts] \setmainfont[ALM Fixed][features=arabic,range=arabic] \setupalign[r2l] \setupwhitespace[big] \showframe \starttext % 10 copies of Persian word "hello" stay on one line. \dorecurse{10}{سلام } % 20 copies makes a 2-line paragraph. \dorecurse{20}{سلام } % one copy of the word goes into the margin although the Latin letters perfectly fit the line. \dorecurse{10}{سلام } {\textdir TLT\dorecurse{20}{a}} \dorecurse{10}{سلام } % although the Latin string extends into the margin, TeX still puts one copy of "hello" there as well. \dorecurse{10}{سلام } {\textdir TLT\dorecurse{30}{a}} \dorecurse{10}{سلام } % something similar happens here with the opposite par/text dir \pardir TLT \dorecurse{10}{bidi } {\textdir TRT\dorecurse{20}{آ}} \dorecurse{10}{bidi } \stoptext The problem seems to be that after typesetting the LTR text within the RTL paragraph, TeX thinks the current text ends at the left end of the LTR portion; hence, it tries to add something to the line; it's only after that that it discovers we ran into the margin! —MHB

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Formula-numbering and \setuphead[...][number=no]
by Alias 1 11 Jan '16

11 Jan '16

Hello, I spotted a strange behavior when I use \setupformulas[way=bychapter,prefixsegments=chapter] to get formula numbers with the chapternumber as prefix and using \setuphead[…][number=no] to turn off the title number. Minimal example: \setupformulas[way=bychapter,prefixsegments=chapter] \setuphead[section][number=no] \starttext \chapter{foo} \placeformula \startformula E=mc^2 \stopformula \section{bar} \placeformula \startformula a^2+b^2=c^2 \stopformula \stoptext The second formula has only the formula number 2. I would expect the formula number 1.2 (or at least I would want to get this number). Thanks for help Jannik

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Backgrounds header and footers
by Ursula Hermann 11 Jan '16

11 Jan '16

Hello evryone! I have just a problem. I want the colored header only in the middle where the text is written, but not in the margin. \setuppapersize[A4] \setupbackgrounds[header][background=color, backgroundcolor=gray] \setupbackgrounds[leftmargin][background=color, backgroundcolor=white] This is me Thanks Uschi

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spacing in notes
by Pablo Rodriguez 11 Jan '16

11 Jan '16

Dear list, I have this sample: \showframe \setuppapersize[A7] \setupnotation[footnote][width=broad] \starttext \footnote{\input zapf} \stoptext I need better spacing in footnotes (to avoid horizontal overflows). I thought "width=broad" would improve the situation, but it didn’t change anything. What am I doing wrong here? Many thanks for your help, Pablo -- http://www.ousia.tk

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Fieldstacks are broken
by Wolfgang Schuster 11 Jan '16

11 Jan '16

Hi Hans, the fieldstack mechanism doesn’t work anymore. \setupinteraction[state=start] \starttext \showframe \definesymbol[frame-1][\tt 1] \definesymbol[frame-2][\tt 2] \definesymbol[frame-3][\tt 3] \definefieldstack[frame][frame-1,frame-2,frame-3] \placeontopofeachother {\framed[strut=no,offset=1ex]{\fieldstack[frame]}} {\goto{Play}[Walk{frame}]} \stoptext Wolfgang

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MetaPost and externalfigure() REQUEST FOR COMMENTS
by Alan BRASLAU 10 Jan '16

10 Jan '16

Hello, INTRODUCTION MetaPost, in fact Metafun, has extensions to include external figures as well as typeset text. For example: \startMPcode draw externalfigure("cow") ; \stopMPcode would be the equivalent to the ConTeXt command. \externalfigure [cow] However, for historical reasons (coming from its implementation in mkii), the MetaPost externalfigure() function behaves somewhat differently from the ConTeXt \externalfigure []. Another very important Metafun extension allows the inclusion of ConTeXt typeset text. For example: \startMPcode draw textext("\input knuth") ; \stopMPcode that can be substituted for the traditional MP \startMPcode label("Some text to be typeset", origin) ; \stopMPcode or its alternate form: \startMPcode label(btex $5\times10^4$ etex, origin) ; \stopMPcode In MetaFun, these all go through the textext mechanism. Getting back to external figures, one could also use \startMPcode draw textext("\externalfigure [cow]") ; \stopMPcode (There is also a rawtextext() variant, which is similar.) In MetaPost, all of these substitute a box having the appropriate dimension that gets filled by ConTeXt as the graphic gets shipped-out; there is no real modification of MetaPost or MPlib itself. After this long-winded introduction, now comes our question: PROBLEM Consider the following MWE: \setupexternalfigures [location=default] \starttext \startMPcode draw externalfigure("cow") xsized 2cm ; draw textext("\externalfigure [cow] [frame=on]") xsized 2cm ; fill fullcircle scaled 2mm withcolor red ; % origin \stopMPcode \stoptext One notices differences, notably that the Metafun externalfigure() function distorts the image as it maps it to a unitsquare. Notice also that I used the xsized transformation rather than scaled since the textext("\externalfigure[cow]") variant returns the "natural" dimension of the figure, not a unit-scaled box. The origin of the two images also differs (lower-left corner vs. center); both behave logically, as draw textext.urt("\externalfigure[cow]") xsized 2cm ; will be placed as expected. There are other issues, in particular all textexts are cleared at the exit of each MP code block, as they each occupy a luatex box. QUESTION We would like to change the behavior of the MetaPost externalfigure function, as lua makes their handling easier than in the original mkii implementation. The purpose of this message is to solicit comments, requests, and/or objections from users on the mailing list. Alan (and Hans)

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