Is capturing error/warning messages generated by R supported ?

I get the error/warning messages only on the _inferior-lisp_ buffer when in emacs. That might be due to R running on a different thread other than that of swank.

Is there a function in the package that would let me capture those warning messages.

Ex:
     `(rclg:r plot)`

I would like to capture the following error string
     `Error in is.function(x) : 'x' is missing`

Thanks
