\starttext
\m{\root3\of2}
\stoptext
works.
But
\starttext
\startMPcode
label("\m{\root3\of2}", origin);
\stopMPcode
\stoptext
doesn't.
Running `LuaMetaTeX' on `trial' with
``/home/fvleung/ConTeXt/tex/texmf-linux-64/bin/mtxrun --autogenerate
--script context trial.tex''
resolvers | formats | executing runner 'run luametatex format':
/home/fvleung/ConTeXt/tex/texmf-linux-64/bin/luametatex --jobname="trial"
--fmt=/home/fvleung/ConTeXt/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luametatex/cont-en.fmt
--lua=/home/fvleung/ConTeXt/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luametatex/cont-en.lui
cont-yes.mkiv --c:currentrun=1 --c:fulljobname="./trial.tex"
--c:input="./trial.tex" --c:kindofrun=1 --c:maxnofruns=9
--c:texmfbinpath="/home/fvleung/ConTeXt/tex/texmf-linux-64/bin"
open source > level 1, order 1, name 'cont-yes.mkiv'
fonts > beware: no fonts are loaded yet, using 'lm mono' in box
system >
system > ConTeXt ver: 2021.07.27 19:27 LMTX fmt: 2021.7.28 int:
english/english
system >
system > 'cont-new.mkxl' loaded
open source > level 2, order 2, name
'/home/fvleung/ConTeXt/tex/texmf-context/tex/context/base/mkxl/cont-new.mkxl'
system > beware: some patches loaded from cont-new.mkiv
close source> level 2, order 2, name
'/home/fvleung/ConTeXt/tex/texmf-context/tex/context/base/mkxl/cont-new.mkxl'
system > files > jobname './trial', input './trial.tex', result
'./trial'
fonts > latin modern fonts are not preloaded
languages > language 'en' is active
open source > level 2, order 3, name './trial.tex'
fonts > preloading latin modern fonts (second stage)
fonts > 'fallback modern-designsize rm 12pt' is loaded
metapost> initializing instance 'metafun:1' using format 'metafun'
and method 'default'
metapost> loading 'metafun' as 'metafun.mpxl' using method 'default'
metapost> initializing number mode 'scaled'
metapost> trace > This is MPLIB for LuaMetaTeX, version 3.11,
running in scaled mode.
metapost> trace >
metapost> trace > loading metafun for lmtx, including the plain
1.004 base definitions
metapost> trace >
tex error > tex error on line 7 in file ./trial.tex: Argument of
\root has an extra }
32\normalstopimath \fi
\par
}
}
\global \setbox \mptextbox \hbox {\clf_mptexttoks
}
[[special cmd: end local call]]
\relax
...
\stopMPcode
1 \starttext
2
3 \startMPcode
4 label("\m{\root3\of2}", origin);
5 \stopMPcode
6
7 >> \stoptext
8
I've run across a '}' that doesn't seem to match anything. For example,
'\def\a#1{...}' and '\a}' would produce this error. The '\par' that I've
just
inserted will cause me to report a runaway argument that might be the root
of the
problem.
mtx-context | fatal error: return code: 256
TeX Output exited abnormally with code 1 at Fri Sep 3 17:44:19
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