Hi, Adam. There are some ways to do it. I'm sure there are many more, but I don't remember them right now. Hi, Hans. There's a bug (?) in syst-lua.lua related to \expression in MkIV (xmath and xcomplex aren't defined). Please fix that %Temporary hack for MkIV %Only use it in case \expression ... \relax doesn't work \startmkivmode \startluacode xmath = xmath or math xcomplex = xcomplex or {} --maybe math too??? \stopluacode \stopmkivmode \starttext $\pi = \ctxlua{context("\letterpercent.6f", math.pi)}$ $\pi = \expression string.format("\letterpercent.6f", pi)\relax$ %Changing catcodes so $ and % are letter characters \startasciimode \m{\pi = \expression ("%.6f"):format(pi) \relax} \m{\pi = \ctxlua{context("%.6f", math.pi)}} \stopasciimode \stoptext Regards, Jairo El sáb, 29 de may. de 2021 a la(s) 07:32, Adam Reviczky (reviczky@gmail.com) escribió:
Hi,
I was trying to use a quick calculation like the new mathfun in lmtx for an older mkiv document.
MWE from the wiki: https://wiki.contextgarden.net/Programming_in_LuaTeX#Examples
\starttext $\pi = \ctxlua{context("\%.6f", math.pi)}$ \stoptext
But that gives an error (actually for both lmtx and mkiv): token call, syntax: [ctxlua]:1: invalid escape sequence near '"\%'
Whereas
\starttext $\pi = \startluacode context("%.6f", math.pi) \stopluacode$ \stoptext
Works fine as expected.
Is there a way to escape the percentage sign in ctxlua as a format value?
Adam
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