October 2019 - ntg-context - NTG Mailing Lists

beta
by Hans Hagen 29 Oct '19

29 Oct '19

Hi, I uploaded a beta. In lmtx there is now a bit more advanced support for svg. A preliminary manual is included that explains a few things. As a teaser ... it is also possible to embed svg code, as in: \startbuffer[svgtest] <svg> <circle cx="50" cy="50" r="40" stroke="green" stroke-width="10" stroke-opacity="0.3" fill="red" fill-opacity="0.3" /> <circle cx="150" cy="50" r="40" stroke="green" stroke-width="10" fill="red" opacity="0.3" /> </svg> \stopbuffer \startTEXpage \includesvgbuffer[svgtest] \stopTEXpage \startTEXpage \includesvgbuffer[svgtest][offset=2bp] \stopTEXpage or in metapost disguise: \startMPpage vardef svg expr c = lmt_svg [ code = c ] enddef ; draw svg "<svg> <circle cx='50' cy='50' r='40' stroke='green' stroke-width='10' stroke-opacity='0.3' fill='red' fill-opacity='0.3' /> <circle cx='150' cy='50' r='40' stroke='green' stroke-width='10' fill='red' opacity='0.3' /> </svg>" ; \stopMPpage It is not a replacement for metapost (which is more efficient runtime anbyway) but for artistic images a mixture might work out ok. In principle inclusion with externalfigure also works when conversion=mps is set but, although I have some 1500 test images, not all might work out well. There can be a lot of crap be hidden in svg files and angle brackets are no guarantee for properly structured images. Especially fonts can be troublesome. On the other hand, if one has very structured input, text labels can be swapped for propertly typeset ones (like math), but that's for later to explain (experimental stuff). We'll see. 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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Bug in latest LMTX?
by Otared Kavian 29 Oct '19

29 Oct '19

Hi Hans, Last night I updated to th elatest beta LMTX (version 2019.10.28 18:57), and noticed that several things don't work as usual. I have not yet been able to find all the examples, but here is one in math: \definemathfence[abs][bar][command=yes,factor=auto] \starttext \startformula \sup_{t\in {\Bbb R}}\abs{f(t + T) - f(t)} \leq \epsilon. \stopformula \stoptext The above does not typeset and I have the following error message: tex error > tex error on line 7 in file ./bug-math.tex: ! This can't happen (mlist2) \stopforceddisplaymath ->\endgroup \stopimath \strc_math_box_stop ->\stopforceddisplaymath \egroup \d_strc_math_number_wid... \stopdisplaymath ...xpandafter \stopinnermath \fi \afterdisplayspace \egroup \strc_formulas_stop_formula ...formula \endcsname \dostoptagged \dostoptagge... l.7 \stopformula 1 \definemathfence[abs][bar][command=yes,factor=auto] 2 3 \starttext 4 5 \startformula 6 \sup_{t\in {\Bbb R}}\abs{f(t + T) - f(t)} \leq \epsilon. 7 >> \stopformula 8 9 \stoptext I'm broken. Please show this to someone who can fix me. mtx-context | fatal error: return code: 256 Thanks for your attention: OK PS: the PDF produced now with a colorful « error » is very nice… but the error messages are cryptic :-)

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Fails with MkIV works with LMTX
by Rik Kabel 29 Oct '19

29 Oct '19

This works with the 20191028 LMTX beta, fails with the 20191028 MkIV beta: \starttext This\footnote{that} \stoptext Error log: return { ["filename"]="c:/Users/micro/Desktop/fn.tex", ["lastcontext"]="\n<inserted text> ...s \\inheritmaintextcolor \\strc_itemgroups_push \n \n\\handlenoteinsert ...tes_synchronize \\the \\everybeforenoteinsert \n \\insert \\currentnoteinsert...\n\\235>notation:note ...enoteinsert \\currentnote \\currentnotenumber \n \\fi \\fi \\fi \\endgroup \\fi ...\n\\m_syst_action_nop ...dler \\currentconstructionhandler \\endcsname \n \\strc_constructions_finali...\nl.2 This\\footnote{that}\n ", ["lastluaerror"]="?", ["lasttexerror"]="! Undefined control sequence", ["linenumber"]=2, ["offset"]=10, } Can anyone reproduce this? I have tried rebuilding. -- Rik

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A question about an algorithm environment
by Fabrice Couvreur 29 Oct '19

29 Oct '19

Hi Wolfgang, Why in the first example, the indentation of my Python code that I wish is not respected and that I have to do as the second example to have what I want ? Thank you. Fabrice \defineframedtext [algorithmframe] [width=fit, location=middle, foregroundstyle={\tt\switchtobodyfont[11pt]}, framecolor=darkblue, corner=round] \definelines [algorithm] [space=on, before=\startalgorithmframe, after=\stopalgorithmframe] \starttext \startlinecorrection[blank] \startmidaligned \startalgorithm {\blue def nom} (argument1, argument2,\unknown): \unknown {\orange return} résultat \stopalgorithm \stopmidaligned \stoplinecorrection \startlinecorrection[blank] \startmidaligned \startalgorithm {\blue def nom} (argument1, argument2,\unknown): \unknown {\orange return} résultat \stopalgorithm \stopmidaligned \stoplinecorrection \stoptext

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Luatex 1.08.0 announcement
by luigi scarso 28 Oct '19

28 Oct '19

============================================================== LuaTeX 1.08 2018-08-28 ============================================================== (1) This release is a prelude to 1.10, the next stable iteration of LuaTeX after version 1.00. (2) Lua 5.3 is now considered to be default and we might use 5.4 in version 1.10. There are no real functional changed expected. You still need to rename the binary for 5.3! (3) Binary mode is no longer available in MPlib but it is still available in stand alone MetaPost. This simplifies compilation and reduces dependencies. (4) The dependency on Poppler for pdf image inclusion has been removed. We now use a small dedicated library written by Pawel Jakowski. We no longer need c++ compilers. We're in the process of making it behave well on all platforms. It has been tested on intel platforms. (5) We know that there can be some (alignment) issues with the arm platform but these are looked into. Therefore, later this year we will release 1.09. Version 1.10 is planned for TeXlive. We hope that ffi works ok on intel and arm platforms at that point. (6) There have been some extensions to the Lua libraries and some callbacks have been added. Also, a few new primitives have been introduced. The documentation mentions the stable extensions. (7) There are the usual bug fixes and cleanups but there have been no real fundamental changes in the API. The LuaTeX team

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questions about publ-imp-apa.mkvi
by Damien Thiriet 28 Oct '19

28 Oct '19

Hello, Why do we have in publ-imp-apa.mkvi, line 1182 sq \btxdoif {number} { %\btxleftparenthesis (\btxflush{number} \btxrightparenthesis } and not \btxdoif {number} { \btxleftparenthesis \btxflush{number} \btxrightparenthesis } ? Damien Thiriet

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typo in publications-customized.tex
by Damien Thiriet 28 Oct '19

28 Oct '19

Hello, I found a typo in publications-customize.tex. Here is a diff -u that may help to fix it quickly (not used to sending diff, I hope it'll help) --- publications-customize-patched.tex Mon Oct 28 07:26:37 2019 +++ publications-customize.tex Mon Oct 21 13:56:04 2019 @@ -362,7 +362,7 @@ diagnostics as described in the Appendices. Their functional meaning is rather \quote {handled} in contrast to \index {field+ignored}\quote {ignored}. \stopfootnote Note that if a category is \emphasis {not} declared in this \LUA\ -table, then \emphasis {all} of its fields will be considered \index +table, than \emphasis {all} of its fields will be considered \index {field+optional}\quote {optional}. Thus, ignoring this level of control and simply defining additional setups might be sufficient for most use. Regards, Damien Thiriet

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cm unicode font: missing tounicode of oldstyle nums
by Ulrike Fischer 27 Oct '19

27 Oct '19

cmunrm.otf uses "unstandard" names for the glyphs of the old style numbers, e.g. oneoldstyle. This means that the glyphs don't get a tounicode mapping: \starttext \pdfvariable compresslevel=0 \font\test={file:cmunrm.otf:mode=node;script=latn;language=DFLT;+onum;}\test abc123 \stoptext gives 6 beginbfchar <0042> <0061> <0043> <0062> <0044> <0063> <0874> <FFFD> <0875> <FFFD> <0876> <FFFD> endbfchar The names are in glyphtounicode.tex, which contains e.g. \pdfglyphtounicode{oneoldstyle}{0031} So it doesn't looks as if they were completly unusual. Would it be possible to add tounicode mappings for these name? And how can one declare mappings for really unusual names? -- Ulrike Fischer https://www.troubleshooting-tex.de/

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interlaced overbrace and underbrace
by mf 25 Oct '19

25 Oct '19

Hello list, is there a better way to interlace overbraces and underbraces like this? \starttext These are the expressions to combine: $$\overbrace{a+b+c}+d \quad a+\underbrace{b+c+d}$$ This is the desired result: $$\overbrace{a+b+c}+d \kern-16mm\underbrace{\hbox to 15mm{ }}$$ \blank {\tfx(the underbrace should move down a little more)} \stoptext TIA, Massi

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place single entry of a register, or filtering the terms of a register
by mf 25 Oct '19

25 Oct '19

Hello list, is there a way to place only one single entry of a register, or a selection of entries? I looked into strc-reg.mkiv and strc-reg.lua and i would answer "no, it's not possible". I could hack strc-reg.lua and define a command to do that, but maybe a better solution is already there. Here's a very simple MWE to work on, in case it's possible: \starttext Cat\index{cat}, mouse\index{mouse}. \page Cat\index{cat}, dog\index{dog}. \page \placeindex \page Here I'd like to place only the "cat" entry:\par \placeindex[criterium=???] \stoptext Massi

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