Eythan Weg wrote:
Hi,


I use luatex 0.43 with yesterday's beta. Running \everymath = {\displaystyle} \starttext
  ${a\over  b}$
\stoptext

results in
  ! Use of \dospecialabout doesn't match its definition.
  l.4 ${a\over  b
               }$

Plain format under luatex has no problem here.

If I change \over to \times it runs with fonts changed
to roman (i.e, not math italics).

taco and i looked into it (fearing big problems) but it's actually normal; use

\everymath = \expandafter{\the\everymath \displaystyle}

or

\appendtoks \displaystyle \to \everymath

as (among other important things) \everymath does initialize \over


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