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ob-sh: compatibility fix for "Marker does not point anywhere" errors in Emacs 23 

* lisp/ob-sh.el (org-babel-sh-initiate-session): After initiating a
  session, initialize the marker `comint-last-output-start' since it
  is going to be used by the ANSI color filter without further checks
  in Emacs 23 and throws an error.
This commit is contained in:
Achim Gratz 2014-09-19 11:52:30 +02:00
parent 873fe49811
commit 98afe0046f
1 changed files with 7 additions and 1 deletions
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8
lisp/ob-sh.el
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@ -123,7 +123,13 @@ Emacs-lisp table, otherwise return the results as a string."
(when (and session (not (string= session "none")))
(save-window-excursion
(or (org-babel-comint-buffer-livep session)
(progn (shell session) (get-buffer (current-buffer)))))))
(progn
(shell session)
;; Needed for Emacs 23 since the marker is initially
;; undefined and the filter functions try to use it without
;; checking.
(set-marker comint-last-output-start (point))
(get-buffer (current-buffer)))))))
(defvar org-babel-sh-eoe-indicator "echo 'org_babel_sh_eoe'"
"String to indicate that evaluation has completed.")