ob-R.el: org-babel-R-evaluate-session finds prompts more reliably
* lisp/ob-R.el (org-babel-R-evaluate-session) should find prompts more
reliably. First, the regular expression used requires spacing
between and after instances of `[>+.]'. Also, the search terminates
at the first `\n', so complicated results with prompt like strings
in them are not deleted.
Prompt finding is necessarily heuristic. It may be necessary to render
the regular expression with a defcustom as is done in ess-mode.