Take into account __tostring whet printing _PROMPT

["Александр Машин" <traditio.ru@...>]

Dear all,

Why doesn't interactive Lua takes into account the __tostring metamethod 
of the non-string _PROMPT global when it prints the prompt, so that the 
below code does not help to increment the prompt on any typed command, 
although on any >=_PROMPT the variable is incremented?

|>_PROMPT = {no = 0}; setmetatable (_PROMPT, {__tostring = function 
(self) self.no = self.no + 1; return tostring (self.no) .. ' >' end})|

https://stackoverflow.com/a/64474830/6632736


Alexander Mashin