** DONE defunct R sessions

  turns out I just had to use inferior-ess-send-input instead of comint-send-input

lisp/langs/org-babel-R.el

@@ -111,7 +111,7 @@ last statement in BODY."
                     tmp-file))
            (full-body (mapconcat #'org-babel-chomp (list body last-value-eval org-babel-R-eoe-indicator) "\n"))
            (raw (org-babel-comint-with-output buffer org-babel-R-eoe-output nil
-                  (insert full-body) (comint-send-input)))
+                  (insert full-body) (inferior-ess-send-input)))
            (results (let ((broke nil))
                       (delete nil (mapcar (lambda (el)
                                             (if (or broke

org-babel.org

@@ -1718,16 +1718,11 @@ This could probably be added to [[file:lisp/org-babel-script.el][org-babel-scrip
 (see [[* file result types][file result types]])
 
 
-* Bugs [13/18]
-** TODO defunct R sessions
-Sometimes an old R session will turn defunct, and newly inserted code
-will not be evaluated (leading to a hang).
-
+* Bugs [14/18]
 ** TODO test failing forcing vector results with =test-forced-vector-results= ruby code block
 Note that this only seems to happen the *second* time the test table
 is evaluated
 
-
 #+srcname: bug-trivial-vector
 #+begin_src emacs-lisp :results vector silent
 8
@@ -1769,6 +1764,11 @@ even a third"
    E.g. the pie chart example. Despite the save-window-excursion in
    org-babel-execute:R. (I never learned how to do this properly: org-R
    jumps all over the place...)
+** DONE defunct R sessions
+Sometimes an old R session will turn defunct, and newly inserted code
+will not be evaluated (leading to a hang).
+
+This seems to be fixed by using `inferior-ess-send-input' rather than `comint-send-input'.
 ** DONE ruby fails on first call to non-default session
 
 #+srcname: bug-new-session
@@ -2035,52 +2035,52 @@ org-babel functionality.
 of these tests may fail.
 
 #+TBLNAME: org-babel-tests
-| functionality           | block                      | arg |    expected |     results | pass                           |
-|-------------------------+----------------------------+-----+-------------+-------------+--------------------------------|
-| basic evaluation        |                            |     |             |             | pass                           |
-|-------------------------+----------------------------+-----+-------------+-------------+--------------------------------|
-| emacs lisp              | basic-elisp                |     |           5 |           5 | pass                           |
-| shell                   | basic-shell                |     |           6 |           6 | pass                           |
-| ruby                    | basic-ruby                 |     |   org-babel |   org-babel | pass                           |
-| python                  | basic-python               |     | hello world | hello world | pass                           |
-| R                       | basic-R                    |     |          13 |          13 | pass                           |
-|-------------------------+----------------------------+-----+-------------+-------------+--------------------------------|
-| tables                  |                            |     |             |             | pass                           |
-|-------------------------+----------------------------+-----+-------------+-------------+--------------------------------|
-| emacs lisp              | table-elisp                |     |           3 |           3 | pass                           |
-| ruby                    | table-ruby                 |     |       1-2-3 |       1-2-3 | pass                           |
-| python                  | table-python               |     |           5 |           5 | pass                           |
-| R                       | table-R                    |     |         3.5 |         3.5 | pass                           |
-|-------------------------+----------------------------+-----+-------------+-------------+--------------------------------|
-| source block references |                            |     |             |             | pass                           |
-|-------------------------+----------------------------+-----+-------------+-------------+--------------------------------|
-| all languages           | chained-ref-last           |     |       Array |       Array | pass                           |
-|-------------------------+----------------------------+-----+-------------+-------------+--------------------------------|
-| source block functions  |                            |     |             |             | pass                           |
-|-------------------------+----------------------------+-----+-------------+-------------+--------------------------------|
-| emacs lisp              | defun-fibb                 |     |       fibbd |       fibbd | pass                           |
-| run over                | Fibonacci                  |   0 |           1 |           1 | pass                           |
-| a                       | Fibonacci                  |   1 |           1 |           1 | pass                           |
-| variety                 | Fibonacci                  |   2 |           2 |           2 | pass                           |
-| of                      | Fibonacci                  |   3 |           3 |           3 | pass                           |
-| different               | Fibonacci                  |   4 |           5 |           5 | pass                           |
-| arguments               | Fibonacci                  |   5 |           8 |           8 | pass                           |
-|-------------------------+----------------------------+-----+-------------+-------------+--------------------------------|
-| bugs and tasks          |                            |     |             |             | pass                           |
-|-------------------------+----------------------------+-----+-------------+-------------+--------------------------------|
-| simple ruby arrays      | ruby-array-test            |     |           3 |           3 | pass                           |
-| R number evaluation     | bug-R-number-evaluation    |     |           2 |           2 | pass                           |
-| multi-line ruby blocks  | multi-line-ruby-test       |     |           2 |           2 | pass                           |
-| forcing vector results  | test-forced-vector-results |     |       Array |         nil | expected "Array" but was "nil" |
-|-------------------------+----------------------------+-----+-------------+-------------+--------------------------------|
-| sessions                |                            |     |             |             | pass                           |
-|-------------------------+----------------------------+-----+-------------+-------------+--------------------------------|
-| set ruby session        | set-ruby-session-var       |     |        :set |        :set | pass                           |
-| get from ruby session   | get-ruby-session-var       |     |           3 |           3 | pass                           |
-| set python session      | set-python-session-var     |     |         set |         set | pass                           |
-| get from python session | get-python-session-var     |     |           4 |           4 | pass                           |
-| set R session           | set-R-session-var          |     |         set |         set | pass                           |
-| get from R session      | get-R-session-var          |     |           5 |           5 | pass                           |
+| functionality           | block                      | arg |    expected |     results | pass                       |
+|-------------------------+----------------------------+-----+-------------+-------------+----------------------------|
+| basic evaluation        |                            |     |             |             | pass                       |
+|-------------------------+----------------------------+-----+-------------+-------------+----------------------------|
+| emacs lisp              | basic-elisp                |     |           5 |           5 | pass                       |
+| shell                   | basic-shell                |     |           6 |           6 | pass                       |
+| ruby                    | basic-ruby                 |     |   org-babel |   org-babel | pass                       |
+| python                  | basic-python               |     | hello world | hello world | pass                       |
+| R                       | basic-R                    |     |          13 |          13 | pass                       |
+|-------------------------+----------------------------+-----+-------------+-------------+----------------------------|
+| tables                  |                            |     |             |             | pass                       |
+|-------------------------+----------------------------+-----+-------------+-------------+----------------------------|
+| emacs lisp              | table-elisp                |     |           3 |           3 | pass                       |
+| ruby                    | table-ruby                 |     |       1-2-3 |       1-2-3 | pass                       |
+| python                  | table-python               |     |           5 |           5 | pass                       |
+| R                       | table-R                    |     |         3.5 |         3.5 | pass                       |
+|-------------------------+----------------------------+-----+-------------+-------------+----------------------------|
+| source block references |                            |     |             |             | pass                       |
+|-------------------------+----------------------------+-----+-------------+-------------+----------------------------|
+| all languages           | chained-ref-last           |     |       Array |       Array | pass                       |
+|-------------------------+----------------------------+-----+-------------+-------------+----------------------------|
+| source block functions  |                            |     |             |             | pass                       |
+|-------------------------+----------------------------+-----+-------------+-------------+----------------------------|
+| emacs lisp              | defun-fibb                 |     |       fibbd |       fibbd | pass                       |
+| run over                | Fibonacci                  |   0 |           1 |           1 | pass                       |
+| a                       | Fibonacci                  |   1 |           1 |           1 | pass                       |
+| variety                 | Fibonacci                  |   2 |           2 |           2 | pass                       |
+| of                      | Fibonacci                  |   3 |           3 |           3 | pass                       |
+| different               | Fibonacci                  |   4 |           5 |           5 | pass                       |
+| arguments               | Fibonacci                  |   5 |           8 |           8 | pass                       |
+|-------------------------+----------------------------+-----+-------------+-------------+----------------------------|
+| bugs and tasks          |                            |     |             |             | pass                       |
+|-------------------------+----------------------------+-----+-------------+-------------+----------------------------|
+| simple ruby arrays      | ruby-array-test            |     |           3 |         nil | expected "3" but was "nil" |
+| R number evaluation     | bug-R-number-evaluation    |     |           2 |           2 | pass                       |
+| multi-line ruby blocks  | multi-line-ruby-test       |     |           2 |           2 | pass                       |
+| forcing vector results  | test-forced-vector-results |     |       Array |       Array | pass                       |
+|-------------------------+----------------------------+-----+-------------+-------------+----------------------------|
+| sessions                |                            |     |             |             | pass                       |
+|-------------------------+----------------------------+-----+-------------+-------------+----------------------------|
+| set ruby session        | set-ruby-session-var       |     |        :set |        :set | pass                       |
+| get from ruby session   | get-ruby-session-var       |     |           3 |           3 | pass                       |
+| set python session      | set-python-session-var     |     |         set |         set | pass                       |
+| get from python session | get-python-session-var     |     |           4 |           4 | pass                       |
+| set R session           | set-R-session-var          |     |         set |         set | pass                       |
+| get from R session      | get-R-session-var          |     |           5 |           5 | pass                       |
 #+TBLFM: $5='(if (= (length $3) 1) (progn (message (format "running %S" '(sbe $2 (n $3)))) (sbe $2 (n $3))) (sbe $2))::$6='(if (string= $4 $5) "pass" (format "expected %S but was %S" $4 $5))
 
 ** basic tests