- ntg-context - NTG Mailing Lists

Adjusting column width dynamically to get rid of orphans and widows
by Thomas Widmann 03 Jul '17

03 Jul '17

Hello, I recently started experimenting with using ConTeXt (mkiv) for dictionary typesetting. It's a much more attractive option than plain TeX or LaTeX because of the support for typesetting on a grid. However, grid typesetting can easily result in a large number of orphans and widows, which really doesn't look good in a dictionary. In an ideal world, I'd want to alter the column width slightly to prevent them (because most dictionaries aren't justified, this wouldn't be very noticeable). Would it be possible to use LuaTeX to achieve this? I.e., could one write some code that gets triggered by orphans and widows and then alters the current column width slightly until the problem disappears? Has somebody already done this? Or have the relevant TeX internals not been Luafied yet? I'd also be interested in other ways to solve this issue – for instance changing the looseness dynamically instead of the column width. Thanks a lot, Thomas -- Thomas Widmann Director Complexli Limited +44 789 444 3009

3 15

Why is the page off?
by Henri Menke 03 Jul '17

03 Jul '17

Dear list, Why is the page shifted? Reproducible in TL2017 and latest beta. See also attached. MWE is below. Cheers, Henri --- \showframe \starttext Foo \stoptext

3 5

mathalignment and grid
by Henri Menke 03 Jul '17

03 Jul '17

Dear Hans, In a previous email I complained that with mathalignment large formulas crash into the paragraph below when using grid typesetting. This has been fixed in the latest beta but now the space above and below is asymmetric. For this particular case I could fix it by setting the gird snapping mode to "top" rather than "math", but this does not apply universally. Any chance there is an easy fix? Cheers, Henri --- \setuplayout[grid=both] \showgrid \startmode[fix] \unprotect \def\math_alignment_snap_start {\ifgridsnapping \snaptogrid[top]\vbox\bgroup \fi} \protect \stopmode \starttext \input knuth \startformula \startmathalignment \NC i\hbar\frac{\diff}{\diff t}\psi \NC= \left( - \frac{\hbar^2}{2 m} \nabla^2 + V(r) \right) \psi \NR \NC F(x) \NC= \int f(x) \diff x \NR \stopmathalignment \stopformula \input ward \stoptext

2 1

Overarc etc. symbols
by Jaroslav Hajtmar 03 Jul '17

03 Jul '17

Hello ConTeXist. Can someone advise me how to lay an arc over three letters AVB. It's about the LaTeX equivalent of \overarc or \widearc macro. Is there any table of similar ConTeXt symbols? Thanks Jaroslav Hajtmar

2 5

floatcombination boundingbox
by Mikael P. Sundqvist 30 Jun '17

30 Jun '17

Hi, I wonder what is going on in the example given below (resulting pdf attached)? The placement of the figures in floatcombination (this does not happen if I place them one by one in a figure) are shifted horizontally, and seems to depend on the boundingbox. Am I doing something wrong? This happens with current version: 2017.06.27 18:05 but also with a version that is some weeks old. /Mikael \setupcombinations[ distance=1cm, ] \starttext \startuseMPgraphic{figa} draw (1cm,1cm) -- origin -- (1cm,-1cm); draw boundingbox currentpicture; \stopuseMPgraphic \startplacefigure[location={nonumber}] \startfloatcombination[nx=2,ny=1] \startplacefigure \useMPgraphic{figa} \stopplacefigure \startplacefigure \useMPgraphic{figa} \stopplacefigure \stopfloatcombination \stopplacefigure \startuseMPgraphic{figb} draw (1cm,1cm) -- origin -- (1cm,-1cm); setbounds currentpicture to ((0,-1cm)--(1cm,-1cm)--(1cm,1cm)--(0,1cm)--cycle) enlarged 0.2cm; draw boundingbox currentpicture; \stopuseMPgraphic \startplacefigure[location={nonumber}] \startfloatcombination[nx=2,ny=1] \startplacefigure \useMPgraphic{figb} \stopplacefigure \startplacefigure \useMPgraphic{figb} \stopplacefigure \stopfloatcombination \stopplacefigure \startuseMPgraphic{figc} draw (1cm,1cm) -- origin -- (1cm,-1cm); setbounds currentpicture to ((0,-1cm)--(1cm,-1cm)--(1cm,1cm)--(0,1cm)--cycle) enlarged 0.5cm; draw boundingbox currentpicture; \stopuseMPgraphic \startplacefigure[location={nonumber}] \startfloatcombination[nx=2,ny=1] \startplacefigure \useMPgraphic{figc} \stopplacefigure \startplacefigure \useMPgraphic{figc} \stopplacefigure \stopfloatcombination \stopplacefigure \stoptext

2 2

Problem with lucida fonts (again)
by Eric Détrez 29 Jun '17

29 Jun '17

Hello I already had this problem with lucida fonts. When I type text the letter are shifted : "b" becomes "a", "c" becomes "b", ... I solved it with using the stable version. I updated my system and I downloaded again context-minimal. The problem came back with both versions (last or stable). ConTeXt ver: 2017.05.15 21:48 MKIV beta fmt: 2017.6.27 int: english/english ConTeXt ver: 2017.06.27 18:05 MKIV beta fmt: 2017.6.27 int: english/english If I use the tex-live version all is fine ConTeXt ver: 2016.05.17 19:20 MKIV current fmt: 2017.6.27 int: english/english It seems current version does provide a beta. I'm afraid I'll can use Lucida soon -- Eric Détrez Informatique Lycée Faidherbe, Lille http://eric-detrez.fr

4 7

Problem with macro with optional parameter
by Jaroslav Hajtmar 27 Jun '17

27 Jun '17

Hello ConTeXist. I'm not able to solve a macros problem with one optional argument. I need the macro to return a value that can be used as a dorecurse loop parameter. Is there possibility create macro with optional parameter and parameter is concurrently inside in braces? (in nonsquare brackets)? I've tried to experiment with examples from the wiki, but I'm not clear about it. Thanx for help. Jaroslav Hajtmar Here is minimal example: \def\DoCommand[#1]% {\iffirstargument#1\else100\fi} \def\Command% {\dosingleargument\DoCommand} %\def\DoAnotherCommand{#1}% % {\iffirstargument#1\else100\fi} %\def\AnotherCommand% % {\dosingleargument\DoAnotherCommand} \starttext 1. \Command[5] % OK 2. \Command % OK %1. \dorecurse{\Command[5]}{\recurselevel\crlf} % not working %2. \dorecurse{\Command}{\recurselevel\crlf} % not working \stoptext

2 2

italian index: "I" and "J" under "I", "U" and "V" under "V"
by MF 27 Jun '17

27 Jun '17

Hello list, there's a bug in the way ConTeXt groups the items of a register when "indicator=yes" and mainlanguage is "it": - items starting with the J letter are grouped under the I letter - items starting with the V letter are grouped under the U letter This is not what one would expect from an index in modern italian. If you browse an italian dictionary, you will find all the 26 letters. You can test the bug with this code: ---------------------- \starttext \mainlanguage[it] Imbuto\index{imbuto}, Juventus\index{Juventus}, volpe\index{volpe}, Windows\index{Windows}, uovo\index{uovo}, yes\index{yes}. \placeindex[indicator=yes,n=1] \stoptext ---------------------- Is there a way to get around this bug and get all the 26 distinct letters in a register keeping "it" as the main language? Thanks in advance, best regards, Massi

4 5

Re: [NTG-context] Fw: thanks for your support
by martin.kolarik 26 Jun '17

26 Jun '17

Hello friend, I wanted to thank you for your support and share with you some interesting information, you may find it here http://bit.do/dxm9S All best, martin.kolarik From: ntg-context [mailto:ntg-context@ntg.nl] Sent: Monday, June 26, 2017 9:53 AM To: martin.kolarik(a)email.cz Subject: Only ze best :D the analogy of falling on a skateboard and a rough trip is more about learning to respect. but i see rough trips as an essencial part of lsd, because some aspects about everyone will only change, and their mind will only expand if they have those rough trips,because they represent facing your fears. but i liked your analogy (: Sent from Mail for Windows 10

1 0

\startcomment...\stopcomment with XML processing
by Pablo Rodriguez 25 Jun '17

25 Jun '17

Dear list, I have the following sample: \startbuffer[demo] <doc> <pre class="copy-code"><code>1 2 3 4 5</code></pre> </doc> \stopbuffer \startxmlsetups xml:initialize \xmlsetsetup{#1}{doc}{xml:doc} \xmlsetsetup{\xmldocument} {pre[contains(@class,'copy\letterpercent-code')]/code} {xml:copy:code} \stopxmlsetups \xmlregistersetup{xml:initialize} \startxmlsetups xml:doc \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:copy:code %~ \startcomment[location=inmargin, color=yellow] %~ \xmlpure{#1} %~ \stopcomment \comment[location=inmargin, color=yellow]{\xmlpure{#1}} \stopxmlsetups \setupinteraction[state=start] \starttext \xmlprocessbuffer{main}{demo}{} \startcomment 1 2 3 4 5 \stopcomment \stoptext I don’t know why I cannot get \startcomment...\stopcomment with \xmlpure{#1}. This is the only way I have to get lines and spaces in comments. Which is the right way to do it? Many thanks for your help, Pablo -- http://www.ousia.tk

2 2