I sometimes define lua functions for showing out worked out calculations. The following minimal example shows that

  context([[\startformula ... \stopformula]])

fails in LMTX with an error message:

tex error       > tex error on line 3 in file ./test.tex: Undefined control sequence \undefined

MWE:

\startluacode
  thirddata = thirddata or {}

  local comment = [[
    This is a famous formula
    \startformula
      a^2 + b^2 = c^2
    \stopformula
  ]]

  function thirddata.explanation()
      context(comment)
  end

\stopluacode

\starttext
\ctxlua{thirddata.explanation()}
\stoptext

The actual use case is more complicated (where I use templates, so I don't want to convert everything to context.startformula() etc.). The example compiles with MkIV but not LMTX.

Any idea what is going on?

Thanks,
Aditya

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