Am 25.10.2018 um 16:04 schrieb oleg_komashko(a)ukr.net:
I do not see a possibility
to check names provided the order above
Yes, I know. Right now I was only picking up the point of whether
built-in function names should be "especially" protected.
The possible clash between series names and user-written functions (from
packages or ad hoc) when it comes to taking lags (or leads) via the
round-bracket syntax is the other ongoing topic.
cheers,
sven