I got j-mode working easily after customizing j-console-cmd. (I haven't got font-lock mode working for J yet, but that's low on my priority list.)
Now I'd like to get J working inside org-mode. I think I followed the instructions on http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-J.html, starting by loading j-mode from stable melpa, but I get an org-babel error output when I try to execute a J source code block: "/bin/bash: jconsole: command not found". That makes it sound as if orgmode requires something besides setting j-console-cmd. Looking at ob-J.el, I see (defcustom org-babel-J-command "jconsole" "Command to call J." :group 'org-babel :version "26.1" :package-version '(Org . "9.0") :type 'string) which looks suspicious to me, but, later, I see (defun org-babel-J-eval-string (str) "Sends STR to the `j-console-cmd' session and executes it." (let ((session (j-console-ensure-session))) (with-current-buffer (process-buffer session) (goto-char (point-max)) (insert (format "\n%s\n" str)) (let ((beg (point))) (comint-send-input) (sit-for .1) (buffer-substring-no-properties beg (point-max)))))) which looks like it's trying to do the right thing. Does that help? Tips? Thanks, Bill PS: I'm running Emacs v25.1.1 and org mode 9.1.3. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
