September 2021 - ntg-context - NTG Mailing Lists

transparency stopped working in LMTX
by Henning Hraban Ramm 07 Sep '21

07 Sep '21

(Latest LMTX, yesterday’s luametatex binary) The MWE shows no transparency with LMTX, it works with MkIV: ''' \setupexternalfigures[location=default] \definetransparency[light][a=1,t=.05] \definelayer[bg][x=0mm,y=0mm] \setupbackgrounds[text][background={bg},state=start] \starttext \starttransparent[light]% \externalfigure[hacker]% \stoptransparent \setlayer[bg][ hoffset=5mm, voffset=5mm, ]{ \starttransparent[light]% \externalfigure[hacker]% \stoptransparent } \stoptext ''' The layer stuff is not "minimal", but I wanted to check if "multiply" works. Hraban

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error: (nodes): fuzzy token cleanup in whatsit node
by Sylvain Hubert 07 Sep '21

07 Sep '21

Dear List, I think I've just encountered a fragile bug. It is only reproducible with exactly the same layout as the doc below. Any insertion or removal of an item that changes the pagination would let the document compile. \defineitemgroup[choice][itemize] \setupchoice[packed,columns,one] \setupchoice[before={\blank[medium]}] \starttext .\blank[32*big] \startitemize \item 0 \startchoice[text] \item 0 \item 0 \item 0 \item 0 \stopchoice \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \blank[6*big] \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \blank[6*big] \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \item 0 \startchoice \item 0 \item 0 \item 0 \item 0 \stopchoice \stopitemize \stoptext test.log: open source > level 1, order 1, name '/home/me/apps/texlive/2021/texmf-dist/tex/context/base/mkiv/cont-yes.mkiv' system > system > ConTeXt ver: 2021.03.05 19:11 MKIV fmt: 2021.4.24 int: english/english system > system > 'cont-new.mkiv' loaded open source > level 2, order 2, name '/home/me/apps/texlive/2021/texmf-dist/tex/context/base/mkiv/cont-new.mkiv' system > beware: some patches loaded from cont-new.mkiv close source > level 2, order 2, name '/home/me/apps/texlive/2021/texmf-dist/tex/context/base/mkiv/cont-new.mkiv' system > files > jobname 'test', input './test', result 'test' fonts > latin modern fonts are not preloaded languages > language 'en' is active open source > level 2, order 3, name '/home/me/code/qs-cs/test.tex' fonts > preloading latin modern fonts (second stage) fonts > 'fallback modern-designsize rm 12pt' is loaded backend > xmp > using file '/home/me/apps/texlive/2021/texmf-dist/tex/context/base/mkiv/lpdf-pdx.xml' pages > flushing realpage 1, userpage 1, subpage 1 pages > flushing realpage 2, userpage 2, subpage 2 ! error: (nodes): fuzzy token cleanup in whatsit node with type whatsit and subtype 29 Could anyone reproduce or explain this bug? Thanks! Sylvain

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Re: [NTG-context] Equation alignment
by Jeong Dal 07 Sep '21

07 Sep '21

Dear Sylvain, I am using ’\startalign’ > > \starttext > \startformula > \eqalign{ > ax^2+bx+c &= 0 \cr > x &= \frac{-b \pm \sqrt{b^2-4ac}}{2a} \cr > } > \stopformula > \stoptext > \starttext \startformula \startalign \NC ax^2 + bx + c \NC = 0 \NR \NC x \NC = = \frac{-b \pm \sqrt{b^2-4ac}}{2a} \NR \stopalign \stopformula \stoptext There is a nice guide book "My Way” for math-alignment by Aditya. https://wiki.contextgarden.net/images/archive/b/b4/20100530075041!Mathalign… <https://wiki.contextgarden.net/images/archive/b/b4/20100530075041!Mathalign…> Best regards, Dalyoung

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no looseness in LMTX?
by Henning Hraban Ramm 07 Sep '21

07 Sep '21

In my magazine and book projects, I sometimes fix pagebreaking by stretching paragraphs with \looseness=1 Unfortunately this works _in my project_ only with MkIV, i.e. \looseness has no effect with LMTX. I tried different examples (e.g. the attached file) and can’t reproduce the problem, there MkIV and LMTX always behave the same. So it must be something in my settings. What could cause the difference? I tried English and German and different settings of alignment and tolerance. Might it be font dependent? Hraban

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Equation alignment
by Sylvain Hubert 07 Sep '21

07 Sep '21

Dear List, The following example of equation alignment copied from An Excursion is not reproducible under my context 2021.03.05 shipped with texlive 2021: \starttext \startformula \eqalign{ ax^2+bx+c &= 0 \cr x &= \frac{-b \pm \sqrt{b^2-4ac}}{2a} \cr } \stopformula \stoptext Both ampersands are rendered literally. Does anyone know how to properly typeset aligned equations? Thanks! Sylvain

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features of fallback font
by Sylvain Hubert 07 Sep '21

07 Sep '21

Dear List, I'm using the chinese simsun font that has no builtin SerifBold. I'm trying to define a fakebold feature for it, but the following code does not work: \definefontfeature[fakebold][effect={width=0.3, delta=0}] \definefontfallback [sunfallback] [name:simsun] [cjkunifiedideographs] \definefontfallback [sunbffallback] [name:simsun] [cjkunifiedideographs][features=fakebold] \definefontsynonym [Serif] [modern] [fallbacks=sunfallback] \definefontsynonym [SerifBold] [modern] [fallbacks=sunbffallback] \starttext 人 foo \bf 人 bar % bar is bold, the second 人 is not \stoptext Does anyone know how to define features for fallback font? Thanks! Best, Sylvain

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Re: [NTG-context] Remove vertical space around typing
by Wolfgang Schuster 07 Sep '21

07 Sep '21

Sylvain Hubert schrieb am 07.09.2021 um 13:38: > Thanks Wolfgang, this solves my problem. > > But now I'm wondering why \starttyping[before=,after=] cannot do the same job? Works here. \starttext Remove space below \starttyping[before=,after=] some code \stoptyping \stoptext Wolfgang

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Remove vertical space around typing
by Sylvain Hubert 07 Sep '21

07 Sep '21

Dear List, How should we remove the vertical space above and below the following typing? \starttext Remove space below \starttyping some code \stoptyping \stoptext Thanks! Best, Sylvain

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margin of inner item group
by Sylvain Hubert 07 Sep '21

07 Sep '21

Dear List, Does anyone know how to set the margin of an inner item group? The natural way does not seem to work: \showframe \starttext \startitemize[margin=5em] \item 1 \startitemize[margin=10em] \item 1 \item 2 \item 3 \stopitemize \item 2 \item 3 \stopitemize \stoptext In the doc above, only the outer item group has a margin. Any help will be appreciated. Best, Sylvain

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itemize problems
by Sylvain Hubert 07 Sep '21

07 Sep '21

Dear List, Here's a collection of four problems about item groups that I've just encountered. 1. 'n' and 'packed' not playing well with other options. This works: \defineitemgroup[myitems][itemize][margin=2em,before=before] \setupmyitems[n,packed] \starttext text \startmyitems \item 1 \item 2 \stopmyitems \stoptext This does not: \defineitemgroup[myitems][itemize][margin=2em,before=before,n,packed] This does not either: \defineitemgroup[myitems][itemize] \setupmyitems[n,packed,margin=2em,before=before] Is there a rule for this glitch which makes it worth memorizing, or is this just a bug? 2. 'before' not working in nested item groups. \starttext \startitemize[before=before1] \item 1 \startitemize[before=before2] \item 2 \stopitemize \stopitemize \stoptext Both before1 and before2 should appear, but only before1 is shown. 3. How to wrap the line under the bulletin or number? To be more precise, the current wrapping behavior of, say, "\item 0 1 2 3 4 5 6 7 8 9" is: * 0 1 2 3 4 5 6 7 8 9 How can we remove the indentation of the second line and make it like * 0 1 2 3 4 5 6 7 8 9 4. How to put the items on the same line? That is, for "\item 0 \item 1 \item 2", I would like it to be like * 0 * 1 * 2 instead of * 0 * 1 * 2 My context version: 2021.03.05 19:11, texlive. Any help with any of the problems above would be greatly appreciated. Best, Sylvain

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