[Rd] R evolution suggestion request

[Stephen Ellison]

> It is pure native R annotation, I mean à la java. I wish to have an @
> operator available a R language level to create/embed real code
> annotations. Currently, the best I can get is to use a trick of hiding such
> thing behind a comment. Neither good, not the right way, as comments are
> comments, and annotations are annotations. They must be distinguished and
> distinguish-able immediately, both for humans and code parsers.

I can't comment on whether R can be extended in that way; that's R-core to answer. 
But @ is the slot extraction operator in S4 (see ?"@") so you'd need another operator symbol. 

But for faintly java-like annotation used for documentation and namespace management, you could look at the roxygen package; see 
https://cran.r-project.org/web/packages/roxygen2/vignettes/roxygen2.html

S Ellison


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