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LMTX: request for \tracinglostchars=3
by Leah Neukirchen 22 Dec '22

22 Dec '22

Hi, since TeX Live 2021 (TeX 3.141592653), there is > - if \tracinglostchars >= 3, make missing characters an error (not just > a log message), and always report the character code in hex. LaTeX also enables this by default these days. LMTX only seems to support =0 (ignore) and =1 (report). Making these a fatal error (with exit status != 0) would be useful for automated typesetting, as missing characters easily can get lost in the logs, and then symbols are missing unnoticed in the output. (However, \tracinglostchars=3 also doesn't seem to work with LuaTeX+MKIV, probably because there is code to fallback to other fonts?) cu, -- Leah Neukirchen <leah(a)vuxu.org> https://leahneukirchen.org/

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Unconnected \mathboxanchored produces unexpected results
by Gavin 22 Dec '22

22 Dec '22

Hi Hans, MIkael and list, I got an unexpected result when I asked for a \mathboxanchored, but then did not use it with a connector. I expected the \mathboxanchored contents to be typeset as usual, without a connector. Instead I got “ ::: c3” added into the formula (“c3” was the anchor’s tag). MWE and unexpected output below. Thanks, Gavin \starttext \startboxanchoring[+] \connectboxanchors[top] [top] [distance=1ex,arrow=no] {c1}{c2} %\connectboxanchors[bottom] [bottom] [distance=1ex,arrow=no] {c2}{c3} % <-- I decided not to use this connector, producing unexpected results. \startformula \mathboxanchored[nucleus]{c1}{e}^{\dot\alpha} \mathboxanchored[nucleus]{c2}{e}_{\mu} \mathboxanchored[nucleus]{c3}{e}^{\beta} = \frac{1}{\sqrt{2}} \bar\sigma^{\dot\alpha\beta}_{\mu} \stopformula \stopboxanchoring \stoptext

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Accent wrecking \mathboxanchored
by Gavin 22 Dec '22

22 Dec '22

Hi Hans, Mikael and list, I’ve been testing the connectors, which work great with the latest upload. One problem I found: an accent in the \mathboxanchored causes a "Missing number, treated as zero” error and no output. MWE below. Thanks for all of the improvements. I’m making all kinds of connections! Gavin \starttext \startboxanchoring[+] \connectboxanchors[top] [top] [distance=1ex,arrow=no] {c1}{c2} \connectboxanchors[bottom] [bottom] [distance=1ex,arrow=no] {c2}{c3} \startformula \mathboxanchored[nucleus]{c1}{e}^{\dot\alpha} % \mathboxanchored[nucleus]{c2}{e}_{\mu} % <-- This works, without accent % \mathboxanchored[nucleus]{c2}{\bar{e}}_{\mu} % <-- This does not work, with accent \bar{\mathboxanchored[nucleus]{c2}{e}}_{\mu} % <-- This works, but connector punches through accent \mathboxanchored[nucleus]{c3}{e}^{\beta} = \frac{1}{\sqrt{2}} \bar\sigma^{\dot\alpha\beta}_{\mu} \stopformula \stopboxanchoring \stoptext

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move glyph vertically
by Pablo Rodriguez 22 Dec '22

22 Dec '22

Dear list, I have the following sample: \startluacode fonts.handlers.otf.addfeature { name = "gpos_test", type = "single", data = { [ '¿' ] = 1000, [ '¡' ] = 1000, } } \stopluacode \definefontfeature[ktest][gpost_tes=yes] \starttext \startTEXpage[offset=1em] \feature[+][gpos_test] ¿? ¡! \stopTEXpage \stoptext This tries to move vertically the opening question and exclamation marks, so they are at the same height that its closing counterparts. I thought there may be a GPOS feature that could achieve this, but I must admit I have no idea about how to achive it. In my document, this should only work with the slanted feature. Could anyone tell me how could I move vertically single glyphs? Many thanks for your help, Pablo

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Unwanted space with \startframedtext
by Max Chernoff 22 Dec '22

22 Dec '22

Hi Hans, There's an uncommented linebreak in the definition of \pack_framed_text_start that's introducing an unwanted space just before \startframedtext. Minimal example: \showmakeup[space] \starttext \hbox{.\startframedtext.\stopframedtext} \stoptext Patch: --- texmf-context/tex/context/base/mkxl/pack-rul.old 2022-12-21 19:12:14.790830416 -0700 +++ texmf-context/tex/context/base/mkxl/pack-rul.mkxl 2022-12-21 19:12:26.193652551 -0700 @@ -2693,7 +2693,7 @@ \tolerant\protected\def\pack_framed_text_start[#1]#*[#2]#*[#3]% or #1#*[#2]#*[#3]% and pass {#1} {\bgroup - \edef\currentframedtext{#1} + \edef\currentframedtext{#1}% \doifelseassignment{#2} {\pack_framed_text_start_indeed\empty{#2}} {\pack_framed_text_start_indeed{#2}{#3}}} (originally reported at https://tex.stackexchange.com/q/669296/270600) Thanks, -- Max

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Use section custom value in a header text.
by Pawel Urbanski 22 Dec '22

22 Dec '22

Dear Friends, I spent some time searching and coding simple documents, but failed and therefore I'm asking for help... A section such as chapter cn have custom keys with values. One uses the: \structureuservariable command to access such values. How can I use such a value to create a custom header in a format: Prefix: \structureuservariable{foo} I am asking for the only thing that worked when I tried was calling the: \setupheadertexts command inside a chapter environment block with some prefix. Unfortunately the value from the custom field was not expanded. It was correctly inserted in a regular paragraph. For example: \startchapter [title={A sample title}][custom_something={random_value}] ... \stopchapter How can I put the value of: custom_something in the header with some prefix? All the best and thanks, Pawel

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upload
by Hans Hagen 21 Dec '22

21 Dec '22

Hi, I uploaded a new version of lmtx. This version uses a new counter and dimension model deep down (\newinteger and \newdimension) which is more efficient in certain cases. From the user's perspective there is no difference between \newcount and \newdimen although there are some fundamental differences. I might have overlooked a few cases where it does make a difference in ConTeXt (easy to handle once I know). The test suite runs 5-10 % faster depending on the load of the machine and the gain mostly relates to memory access (where processes fight over memory and cpu cache). Of course I can probably gain more but using a faster machien than this 5 year old one but why waste a good machine. Some other possible speedups are on-hold till I have better test cases. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

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Cron <context@zapf> /var/www/aanhet.net/context/bin/cron/context-mirror
by root＠ntg.nl 21 Dec '22

21 Dec '22

receiving incremental file list ./ ctan.lsr document-2.htm download-1.htm download-2.htm logo-ade.png logo-cts.png logo-pod.png rss.xml show-fil.pdf context/latest/ context/latest/cont-mpd.zip context/latest/cont-ppc.zip context/latest/cont-sci.zip context/latest/cont-tmf.zip context/latest/cont-tst.7z context/latest/cont-tst.tar.xz context/latest/cont-tst.zip sent 101,520 bytes received 21,334,966 bytes 3,297,920.92 bytes/sec total size is 449,094,478 speedup is 20.95 Running archiver: New dir: /var/www/aanhet.net/context//htdocs/archives/context-2022-12-21.18 172178708 /var/www/aanhet.net/context//htdocs/archives/context-2022-12-21.18/latest 126745317 /var/www/aanhet.net/context//htdocs/archives/context-2022-12-21.18/current 18956262 /var/www/aanhet.net/context//htdocs/archives/context-2022-12-21.18/alpha 126707516 /var/www/aanhet.net/context//htdocs/archives/context-2022-12-21.18/beta 444591899 /var/www/aanhet.net/context//htdocs/archives/context-2022-12-21.18 444591899 total

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Mathematical MetaFun Mania
by Gavin 21 Dec '22

21 Dec '22

Hello MetaFun Math Lovers, I am using MetaFun to attach diagrams to formulas. Both the physics and the typesetting are going great! I attached a sample below, to give a taste of what I am trying to do. This page of actual calculations has examples of almost everything I need. It’s a lot, but it is all working. Right now the interface is terrible, but effective. Thanks to Hans and Mikael for many helpful hints! I am still using \hpos and \setMPpositiongraphic, because I haven't figured out how to pass information from \mathboxanchored and \connectboxanchors to my MetaPost code. Here is the code for the connectors: \startMPpositiongraphic{mypos:contract} path pa, pb, pab ; numeric na, nb ; string ta, tb, hand, product ; ta := mpvars("from") ; tb := mpvars("to") ; stemshiftfrom := (EmWidth/8)*mpvarn("startstem") ; stemshiftto := (EmWidth/8)*mpvarn("stopstem") ; hand := mpvars("hand") ; product := mpvars("product") ; delta := mpvard("distance") ; na := positionpage(ta) ; % page number of a nb := positionpage(tb) ; % page number of b pa := positionbox(ta) ; % box of a pb := positionbox(tb) ; % box of b if hand = "right" : z1 = 0.5[llcorner pa,lrcorner pa] shifted (stemshiftfrom, -ExHeight/4) ; z2 = 0.5[llcorner pb,lrcorner pb] shifted (stemshiftto, -ExHeight/4) ; y3 = min(y1,y2) - ExHeight/2 -delta; else : z1 = 0.5[ulcorner pa,urcorner pa] shifted (stemshiftfrom, ExHeight/4) ; z2 = 0.5[ulcorner pb,urcorner pb] shifted (stemshiftto, ExHeight/4) ; y3 = max(y1,y2) + ExHeight/2 +delta; fi ; if na = nb : % Check that positions are on the same page pickup pencircle scaled 0.6pt ; if product = "sym" : draw z1 -- (x1,y3+ExHeight/2) ; draw z2 -- (x2,y3+ExHeight/2) ; pickup pencircle scaled 1.2pt ; draw (x1-EmWidth/8,y3) -- (x2+EmWidth/8,y3) ; else : pab := z1 -- (x1,y3) -- (x2,y3) -- z2{down} ; draw pab ; fi ; positioninregion ; fi ; \stopMPpositiongraphic A connector command might look something like this: \setMPpositiongraphic{X-1}{mypos:contract}{to=X-2,product=sym,startstem=-2,stopstem=2,distance=0.5ex} All of the key=value pairs in the last argument of \setMPpositiongraphic pop right up in my MetaPost code with mpvar(“key”). I haven’t been able to follow this with \mathboxanchored and \connectboxanchors. My two questions are: 1) Can I use \setMPpositiongraphic with \mathboxanchored? That would allow me to go straight to my MetaPost code without the \connectboxanchors interface 2) Can I tell \connectboxanchors to use my MetaPost code and pass key=value pairs like I do with \setMPpositiongraphic? Thanks for any hints! Gavin

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Writing Tabular with \Vert
by Ursula Hermann 21 Dec '22

21 Dec '22

Dear List, In this tabular I wanted to set \Vert. But when I compile it, \starttable \bTD \Vert r1c1\Vert \bTD \bf r1c2 \eTD \bTD \bf r1c3 \eTD \bTD \bf r1c4 \eTD \eTR \bTR \bTD r2c1 \eTD \bTD r2c2 \eTD \bTD[nr=2] r2c3 \eTD \bTD r2c4 \eTD \eTR \bTR \bTD r3c1 \eTD \bTD r3c2 \eTD \bTD r3c4 \eTD \eTR \bTR \bTD r4c1 \eTD \bTD r4c2 \eTD \bTD[nr=3] r4c3 \eTD \bTD[nr=3] r4c4 \eTD \eTR \bTR \bTD r5c1 \eTD \bTD r5c2 \eTD \eTR \bTR \bTD r6c1 \eTD \bTD r6c2 \eTD \eTR \stoptable I get this : Command Line: C:\texlive\2022\bin\win32\context.exe --synctex=1 "Tabular.tex" Startup Folder: C:\texlive\My Documents\My Documents resolvers | formats | executing runner 'run luatex format': C:/texlive/2022/bin/win32/luatex --jobname="Tabular" --fmt=C:/texlive/2022/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9/formats/luatex/cont-en.fmt --lua=C:/texlive/2022/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9/formats/luatex/cont-en.lui cont-yes.mkiv --c:currentrun=1 --c:fulljobname="./Tabular.tex" --c:input="./Tabular.tex" --c:kindofrun=1 --c:maxnofruns=9 --c:synctex="1" --c:texmfbinpath="C:/texlive/2022/bin/win32" This is LuaTeX, Version 1.15.0 (TeX Live 2022) system commands enabled. open source > level 1, order 1, name 'C:/texlive/2022/texmf-dist/tex/context/base/mkiv/cont-yes.mkiv' system > system > ConTeXt ver: 2021.03.05 19:11 MKIV fmt: 2022.10.11 int: english/english system > system > 'cont-new.mkiv' loaded open source > level 2, order 2, name 'C:/texlive/2022/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 'C:/texlive/2022/texmf-dist/tex/context/base/mkiv/cont-new.mkiv' system > files > jobname 'Tabular', input './Tabular', result 'Tabular' fonts > latin modern fonts are not preloaded languages > language 'en' is active system > synctex functionality is enabled, expect 5-10 pct runtime overhead! open source > level 2, order 3, name 'C:/texlive/My Documents/My Documents/Tabular.tex' fonts > beware: no fonts are loaded yet, using 'lm mono' in box tex error > tex error on line 2 in file C:/texlive/My Documents/My Documents/Tabular.tex: ! Use of \csname\endcsname doesn't match its definition \tabl_table_restart_indeed #1->\gdef \tabl_table_restart {#1}\tabl_table_restart \tabl_table_insert_head \ifsplittables \ifconditional \c_tabl_table_repeat_tail \tablenoalign {\goodbreak }\tabl_table_insert_tail \tablenoalign {\goodbreak }\fi \fi <to be read again> \bTD l.2 \bTD \Vert r1c1\Vert 1 \starttable 2 >> \bTD \Vert r1c1\Vert 3 \bTD \bf r1c2 \eTD 4 \bTD \bf r1c3 \eTD 5 \bTD \bf r1c4 \eTD 6 \eTR 7 \bTR 8 \bTD r2c1 \eTD 9 \bTD r2c2 \eTD 10 \bTD[nr=2] r2c3 \eTD 11 \bTD r2c4 \eTD 12 \eTR mtx-context | fatal error: return code: 1 How can I write it in the right way? Uschi _____________________________________________________________________ ConTeXt Compilation Report (Pages: 0) Errors: 1 Warnings: 0 Bad Boxes: 0

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