> \unexpanded\def\uncover[#1]%
>   {\ctxlua{
>      distance = simplesteps.distance_to_step(\!!bs#1\!!es)
>      ...
>   }}
>
> it works because the " is now only part of the string.

Thanks. That's what I needed. I guess
bs = begin string
es = end string.


Cheers,
André Caldas.
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