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\Udelcodenum doesn't work properly
by Petr Olsak 18 Nov '22

18 Nov '22

Hello The XeTeX manual says that \Udelcodenum sets or return packet information about family/slot of the \Udelcode data. It seems that it doesn't work in LuaTeX: \chardef\lx="027E8 \Udelcode\lx=1 "027E8 \the\Udelcodenum\lx % prints 42893312, i.e. "28E8000 \Udelcodenum\lx=\Udelcodenum\lx \the\Udelcodenum\lx % prints -381681664 \bye The slot code "027E8 is mixed with 01 family and \Udelocodenum returns "28E8000. Of course, if I set new Udelcode data using \Udelcodenum\lx=\Udelcodenum\lx then I get totally bad result. On the other hand, XeTeX runing on the same testing file prints in both cases 1075849192, i.e "402027E8. The slot code "027E8 isn't mixed with the family number. Petr Olsak

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\intop without \nolimits gives bas spacing
by Petr Olsak 17 Nov '22

17 Nov '22

Hello suppose following testing file: ------------------- CM, intop+nolimits: $\intop\nolimits_0^1$ CM, intop directly: $\intop_0^1$ \ifx\directlua\undefined \else \input luafonts \fi \font\fA=[latinmodern-math]:mode=base;script=math;ssty=0; \font\fB=[latinmodern-math]:mode=base;script=math;ssty=1; at7pt \Umathchardef\intop="1"00"00222B \textfont0=\fA \scriptfont0=\fB LM, intop+nolimits $\intop\nolimits_0^1$ LM, intop directly $\intop_0^1$ \bye ------------------- The first two output lines print integral via classical PlainTeX setting with Coputer Modern fonts. We can see that there is no difference between \intop without \nolimits and with \nolimits. The following two output lines shows LatinModern-math Unicode font. First prints \intop with \nolimits, the result is with somewhat tightly spacing but it is not our problem. This is due to suboptimal font parameters. But the last line prints \intop without \nolimits and there is significantly difference: big space after \intop before limits. IMHO, it is a bug in LuaTeX. If we run the same testing file via XeTeX then there is no difference between third and last line of output. Petr Olsak

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letter spacing in display math
by blumens＠fi.muni.cz 23 Sep '22

23 Sep '22

Hello, using fonts with additional letter spacing does not seem to work in display formulae. (Not sure whether it's a bug in luatex or whether I should report it to luaotfload instead.) Example (LuaHBTeX, Version 1.15.0): \documentclass{minimal} \begin{document} \font\f="DejaVuSerif-Italic:letterspace=20.0" at 10pt \f % these work as expected \hfill abcdefxyz\hfill\hbox{} \hfill$\textfont1=\f abcdefxyz$\hfill\hbox{} \hfill$\textfont1=\f\displaystyle abcdefxyz$\hfill\hbox{} % these don't $$\textfont1=\f abcdefxyz$$ $$\textfont1=\f\textstyle abcdefxyz$$ \end{document} Am I missing something? Achim

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\Uchar errors with "FFFD
by Ulrike Fischer 16 Aug '22

16 Aug '22

\Uchar"FFFD \bye errors with ! String contains an invalid utf-8 sequence. l.93 \Uchar"FFFD (^^^^fffd works) -- Ulrike Fischer http://www.troubleshooting-tex.de/

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Fwd: Importing .tex files using \directlua to navigate files and folders
by Hans Hagen 12 Aug '22

12 Aug '22

-------- Forwarded Message -------- Subject: Re: [Dev-luatex] Importing .tex files using \directlua to navigate files and folders Date: Fri, 12 Aug 2022 09:44:24 +0200 From: Hans Hagen <j.hagen(a)xs4all.nl> To: Taco Hoekwater <taco(a)bittext.nl> On 8/12/2022 9:30 AM, Taco Hoekwater wrote: > > >> On 11 Aug 2022, at 14:08, paolo de luca <teugon(a)gmail.com> wrote: >> >> Hi all, >> >> I've been trying to import all tex files and inside a given folder, the issue I'm facing is that my lua call is not able to navigate folders: it only works for files. >> It's worth mentioning that compilation successfully completes as the document is created, but I have no errors explaining me why it's not working as intended. >> I've also opened a question on tex.stackexchange. >> >> would you mind having a look at it ? >> >> https://tex.stackexchange.com/questions/653499/understanding-implicit-error… > > > See comment on SX. Don't 'return' the nested call, and it works just fine. > > function inputAll(dir) > for content in lfs.dir(dir) do > if ("." ~= content) and (".." ~= content) then > fullpath = dir .."/".. content > contentType = lfs.attributes(fullpath, "mode") > if isTexFile(content, contentType) then > tex.sprint(" > \\ > input{" .. fullpath .. "}") > elseif ("directory" == contentType) then > -- return > inputAll(fullpath) > end > end > end > end yes, the return is quitter, but even then one can run into some nested directory handle issue especially when one does things inside that loop on one of the directories (maybe the \input results in new files there or files get deleted and or ..) and one wants to have a predictable sorted list i assume so i tend to collect first 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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Importing .tex files using \directlua to navigate files and folders
by paolo de luca 12 Aug '22

12 Aug '22

Hi all, I've been trying to import all tex files and inside a given folder, the issue I'm facing is that my lua call is not able to navigate folders: it only works for files. It's worth mentioning that compilation successfully completes as the document is created, but I have no errors explaining me why it's not working as intended. I've also opened a question on tex.stackexchange. would you mind having a look at it ? https://tex.stackexchange.com/questions/653499/understanding-implicit-error… Thanks in advance for your time

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Cannot load .tex when both --output-directory and \input are present
by Ikumi Keita 30 Jul '22

30 Jul '22

Hello LuaTeX developers, Let me explain an issue I encountered. I'd like to know how to circumvent it. In latex tools bundle, there is a file ".tex", which has a file name with extension only. Its path is /usr/local/texlive/2022/texmf-dist/tex/latex/tools/.tex typically. This example loads that ".tex" successfully: lualatex --jobname=abcd '\input\relax' '\input' sample2e Here '\input\relax' actually directs to load ".tex". The console log is: ---------------------------------------------------------------------- This is LuaHBTeX, Version 1.15.0 (TeX Live 2022) restricted system commands enabled. LaTeX2e <2021-11-15> patch level 1 L3 programming layer <2022-02-24> (/usr/local/texlive/2022/texmf-dist/tex/latex/tools/.tex File ignored) (/usr/local/texlive/2022/texmf-dist/tex/latex/base/sample2e.tex ... ---------------------------------------------------------------------- This is OK. Next, make a directory "build" for output directory by mkdir build . Then this command stalls with the following console output: lualatex --jobname=abcd --output-directory=build/ '\input\relax' '\input' sample2e ---------------------------------------------------------------------- This is LuaHBTeX, Version 1.15.0 (TeX Live 2022) restricted system commands enabled. LaTeX2e <2021-11-15> patch level 1 L3 programming layer <2022-02-24> ! I can't find file `'. <to be read again> \let <*> \input\relax \input sample2e (Press Enter to retry, or Control-D to exit) Please type another input file name: ---------------------------------------------------------------------- This affects preview-latex: https://lists.gnu.org/r/auctex/2022-06/msg00020.html Is this a supposed behavior of lua(la)tex? If so, is there any workaround to load ".tex" when both --output-directory and \input are present? [Supplementary information with respect to this issue] (1) pdflatex doesn't have this issue: pdflatex --jobname=abcd --output-directory=build/ '\input\relax' '\input' sample2e ---------------------------------------------------------------------- This is pdfTeX, Version 3.141592653-2.6-1.40.24 (TeX Live 2022) (preloaded format=pdflatex) restricted \write18 enabled. entering extended mode LaTeX2e <2021-11-15> patch level 1 L3 programming layer <2022-02-24> (/usr/local/texlive/2022/texmf-dist/tex/latex/tools/.tex File ignored) (/usr/local/texlive/2022/texmf-dist/tex/latex/base/sample2e.tex ... ---------------------------------------------------------------------- (2) In actual usage, "\input\relax" is mandatory because it is an argument of mylatex.ltx written in temporal xxx.ini file created by (kinda) script and we are trying to dump format file with -ini like this: lualatex -ini --output-directory="build/" -interaction=nonstopmode "&lualatex" prv_tst-prv.ini "\nonstopmode\nofiles\PassOptionsToPackage{active,tightpage,auctex}{preview}\AtBeginDocument{\ifx\ifPreview\undefined\RequirePackage[displaymath,floats,graphics,textmath,sections,footnotes]{preview}[2004/11/05]\fi}" "\input" tst-prv.tex (3) When I answer the prompt "Please type another input file name:" providing ".tex", the process continues and completes. However, we can't take this way because we want to use it like batch operation by -interaction=nonstopmode option. (4) When I copy the ".tex" file in the "build" subdirctory, the above command succeeds: cp /usr/local/texlive/2022/texmf-dist/tex/latex/tools/.tex build/ lualatex --jobname=abcd --output-directory=build/ '\input\relax' '\input' sample2e ---------------------------------------------------------------------- This is LuaHBTeX, Version 1.15.0 (TeX Live 2022) restricted system commands enabled. LaTeX2e <2021-11-15> patch level 1 L3 programming layer <2022-02-24> (./build//.tex File ignored) (/usr/local/texlive/2022/texmf-dist/tex/latex/base/sample2e.tex ... ---------------------------------------------------------------------- However, such approach isn't suitable for our batch-like usage. Regards, Ikumi Keita #StandWithUkraine #StopWarInUkraine

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Fonts used for luatex discretionaries
by David Carlisle 30 Jul '22

30 Jul '22

Normally a hyphen inserted at a line break comes from the font used for the current word. If the luatex extended {before}{after}{nobreak} syntax is used in \hyphenation the same is true unless the nobreak field is empty in which case the font from (I think) the end of the paragraph is used. This is LuaTeX, Version 1.15.0 (TeX Live 2022) You can work around the issue by repeating the following character so {-}{w}{w} instead of {-}{}{}w in the attached example, but this seems wrong? David

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\scriptspace behavior?
by Petr Olsak 21 Jul '22

21 Jul '22

Suppose ---- $x_1=y$ \scriptspace=10pt $x_1=y$ \bye ----- When we use pdftex then we get expected result: the first formula has default script space and the second has big script space. But when we use luatex then both formulae have default script space. When the first formula is removed then the resting one has expected script space 10pt with luatex too. I am unable to understand the logic of luatex behavior. This is LuaTeX, Version 1.15.0 (TeX Live 2022) Regards Petr Olsak

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Cannot compile LuaTeX on macOS / arm
by Patrick Gundlach 07 Jul '22

07 Jul '22

Hi all, I try to compile LuaTeX (master branch) on macOS / m1 (arm): ./build.sh --clang --luahb --lua53 --nojit --parallel --nostrip and after a while I get this error: libtool: link: clang++ -Wall -Wunused -Wreturn-type -Wno-write-strings -o luahbtex luatexdir/luahbtex-luatex.o mplibdir/luahbtex-lmplib.o -Wl,-bind_at_load libluahbtexspecific.a libluatex.a libff.a libluamisc.a libluasocket.a libluaffi.a libluaharfbuzz.a /Users/patrick/work/software/luaTeX/build-clang/libs/lua53/.libs/libtexlua53.a libmplibcore.a /Users/patrick/work/software/luaTeX/build-clang/libs/zziplib/libzzip.a /Users/patrick/work/software/luaTeX/build-clang/libs/libpng/libpng.a /Users/patrick/work/software/luaTeX/build-clang/libs/harfbuzz/libharfbuzz.a /Users/patrick/work/software/luaTeX/build-clang/libs/graphite2/libgraphite2.a /Users/patrick/work/software/luaTeX/build-clang/libs/pplib/libpplib.a /Users/patrick/work/software/luaTeX/build-clang/libs/zlib/libz.a lib/lib.a /Users/patrick/work/software/luaTeX/build-clang/texk/kpathsea/.libs/libkpathsea.a libmputil.a libunilib.a libmd5.a Undefined symbols for architecture arm64: "_png_do_expand_palette_rgb8_neon", referenced from: _png_do_expand_palette in libpng.a(pngrtran.o) "_png_do_expand_palette_rgba8_neon", referenced from: _png_do_expand_palette in libpng.a(pngrtran.o) "_png_init_filter_functions_neon", referenced from: _png_init_filter_functions in libpng.a(pngrutil.o) "_png_riffle_palette_neon", referenced from: _png_do_read_transformations in libpng.a(pngrtran.o) ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation) make: *** [luahbtex] Error 1 Is there anything I can do? Patrick

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