[Rd] Syntactically valid names

[Hadley Wickham]

> That's two different issues:
>
>> y <- list()
>> y$... <- 2
>> y$..2 <- 3
>> y$break <- 4
> Error: unexpected 'break' in "y$break"
>
> Notice that there is nothing _syntactically_ wrong with ... & friends as names:
>
>> quote(...<-4)
> ... <- 4
>
> It's the _evaluator_ that throws the error because the ...-name has a special interpretation.

Oh good point.  Thanks for the clarification.

Hadley


-- 
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/