Thank you Jairo!
I have tried playing around with letterpercent/catcodes as well, not sure
what I did wrong, but your examples work just fine, so thanks again.
Adam
On Sat, May 29, 2021 at 2:04 PM Jairo A. del Rio
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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