dev-luatex July 2022

dev-luatex@ntg.nl

7 participants
7 discussions

Luatex 1.12.0 announcement.
by luigi scarso 27 May '23

27 May '23

============================================================== LuaTeX 1.12.0 2020-03-15 ============================================================== This is the release for TeX live 2020. --shell-restricted now forbids loading of dso (dll/so object) Scaled virtual font Aadditional primitives \eTeXglue[stretch|shrink]order for querying order the etex way. Extra features runtoks tex.getmodenames() (as these can differ per engine/version) Permit nested runtoks in more complex situations of nesting (HH) More accurate and correct test for tex.[set|get]math Minor clean-up and bugs fixed -- luigi

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Fix for pdf_literal Lua string / token list conversions
by Michal Vlasák 06 May '23

06 May '23

Hello, take this plain LuaTeX example: \setbox0=\hbox{\pdfextension literal{0 g}} % 1) \directlua{ local literal = tex.getbox(0).head texio.write_nl("log", "literal.data="..literal.data) } \showbox0 % 2) \directlua{ local literal = tex.getbox(0).head literal.data = "test" literal.token = "toks" texio.write_nl("log", "literal.token="..(literal.token or "nil")) } \showbox0 % 3) patch test \directlua{ tex.set("everyjob", "asd") texio.write_nl("log", tex.get("everyjob")) } \bye Expected log output (abridged): 1) literal.data=0 g .\pdfliteral origin{0 g} 2) literal.token=toks .\pdfliteral origin{toks} Actual output: 1) literal.data=data .\pdfliteral origin{0 g} 2) literal.token=characters .\pdfliteral origin <lua data reference 153> In the first case the Lua accessor returns a value which happens to be on top of the stack (the key "data" itself). In the second case an index into TeX memory is misinterpreted as a Lua registry index, so the returned data is essentially garbage. Patch for both issues is attached. I also extended `tokenlist_from_lua` (which is what `nodelib_gettoks` is defined as) to allow an index argument. The previous version used the value on top of the stack, which probably worked for every use currently in LuaTeX, but seemed rather dangerous and subtle. The patch is from git, though it can be applied normally with patch -Np1 < pdf_literal.patch Kind regards, Michal Vlasák

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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

2 6

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

3 3

\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

1 0

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

2 3

Fwd: luatex (suggestion by Ivo Welch)
by Taco Hoekwater 04 Jul '22

04 Jul '22

> Begin forwarded message: > > From: ivo welch > Subject: luatex > Date: 3 July 2022 at 21:46:46 CEST > > hi taco--- > > https://tex.stackexchange.com/questions/649666/lulatex-macos-font-mystery-f… > > I just ran into some lualatex problems with a font from macos Fontbook. > > suggestion: may I suggest improving the error messages with respect to > fonts? if a font is not found, print out *where* luatex was looking > for the font ("montserrat not found in /usr/...; /opt/..."). [maybe > also add the most similarly named font if one exists.] ulrike also > suggested that maybe the font was damaged, although it worked well > with other apps. in any case, if this could be the reason, perhaps > add a different kind of error message than "font not found." > > regards, > > /iaw > > -- > Ivo Welch (ivo.welch(a)ucla.edu) > http://www.ivo-welch.info/ > J. Fred Weston Distinguished Professor of Finance, UCLA Anderson > [please acknowledge receipt if this is the first email in a conversation] — Taco Hoekwater E: taco(a)bittext.nl genderfluid (all pronouns)

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dev-luatex July 2022