[O] [babel] ob-octave does not catch EOE from matlabShell on MS Windows

[Mikhail Titov]

Hello!

I was trying hard to set up Matlab R2011a to work with my Emacs 24.1.50.1 (org 
version is release_7.8.09-532-gb797c8.dirty) and finally I was able to use it 
from M-shell but not from orgmode yet. I've edited emacs wiki [1] to reflect 
somewhat working matlab-mode setup on win32. Namely I use [2] as matlab shell.

I have a simple test block like

#+begin_src matlab :session *MATLAB*
a=2
#+end_src

When I try to execute it with C-c C-c , emacs never returns unless I hit C-g. 
If I do M-x toggle-debug-on-quit RET I see that for some reason it keeps 
waiting for EOE.

I'd appreciate any suggestion as what to try (other than Octave which has its 
own tricks on Win32). I'm lost.

[1] http://www.emacswiki.org/emacs/MatlabMode#toc3
[2] http://www.cs.umb.edu/~ram/matlabShell/index.html

--
Mikhail


Here is what I see in *MATLAB* buffer:

----8<-----------------*MATLAB*------------------>8-----
>> a=2
if ischar(ans), fid = 
fopen('c:/DOCUME~1/user/LOCALS~1/Temp/babel-7560HUp/matlab-7560PPd', 'w'); 
fprintf(fid, '%s\n', ans); fclose(fid); else, 
dlmwrite('c:/DOCUME~1/user/LOCALS~1/Temp/babel-7560HUp/matlab-7560PPd', ans, 
'\t'); end
'org_babel_eoe'

a =

     2

>> >> 
ans =

org_babel_eoe

>>
----8<-----------------*MATLAB*------------------>8-----


----8<-----------------*Bactrace*------------------>8-----
Debugger entered--Lisp error: (quit)
  accept-process-output(#<process MATLAB>)
  (while (progn (goto-char comint-last-input-end) (not (save-excursion (and 
(re-search-forward (regexp-quote (if matlabp org-babel-octave-eoe-indicator 
org-babel-octave-eoe-output)) nil t) (re-search-forward comint-prompt-regexp 
nil t))))) (accept-process-output (get-buffer-process (current-buffer))))
  (progn (goto-char (process-mark (get-buffer-process (current-buffer)))) (let 
((start (point)) (end (point-max))) (setq dangling-text (buffer-substring start 
end)) (delete-region start end)) (insert full-body) (comint-send-input nil t) 
(while (progn (goto-char comint-last-input-end) (not (save-excursion (and 
(re-search-forward (regexp-quote ...) nil t) (re-search-forward 
comint-prompt-regexp nil t))))) (accept-process-output (get-buffer-process 
(current-buffer)))) (goto-char (process-mark (get-buffer-process 
(current-buffer)))) (insert dangling-text))
  (unwind-protect (progn (goto-char (process-mark (get-buffer-process 
(current-buffer)))) (let ((start (point)) (end (point-max))) (setq 
dangling-text (buffer-substring start end)) (delete-region start end)) (insert 
full-body) (comint-send-input nil t) (while (progn (goto-char 
comint-last-input-end) (not (save-excursion (and (re-search-forward ... nil t) 
(re-search-forward comint-prompt-regexp nil t))))) (accept-process-output 
(get-buffer-process (current-buffer)))) (goto-char (process-mark 
(get-buffer-process (current-buffer)))) (insert dangling-text)) (remove-hook 
(quote comint-output-filter-functions) (quote my-filt)))
  (progn (fset (quote my-filt) (function* (lambda (text) (block my-filt (setq 
string-buffer (concat string-buffer text)))))) (add-hook (quote 
comint-output-filter-functions) (quote my-filt)) (unwind-protect (progn 
(goto-char (process-mark (get-buffer-process (current-buffer)))) (let ((start 
(point)) (end (point-max))) (setq dangling-text (buffer-substring start end)) 
(delete-region start end)) (insert full-body) (comint-send-input nil t) (while 
(progn (goto-char comint-last-input-end) (not (save-excursion (and ... ...)))) 
(accept-process-output (get-buffer-process (current-buffer)))) (goto-char 
(process-mark (get-buffer-process (current-buffer)))) (insert dangling-text)) 
(remove-hook (quote comint-output-filter-functions) (quote my-filt))))
  (unwind-protect (progn (fset (quote my-filt) (function* (lambda (text) (block 
my-filt (setq string-buffer (concat string-buffer text)))))) (add-hook (quote 
comint-output-filter-functions) (quote my-filt)) (unwind-protect (progn 
(goto-char (process-mark (get-buffer-process (current-buffer)))) (let ((start 
(point)) (end (point-max))) (setq dangling-text (buffer-substring start end)) 
(delete-region start end)) (insert full-body) (comint-send-input nil t) (while 
(progn (goto-char comint-last-input-end) (not (save-excursion ...))) 
(accept-process-output (get-buffer-process (current-buffer)))) (goto-char 
(process-mark (get-buffer-process (current-buffer)))) (insert dangling-text)) 
(remove-hook (quote comint-output-filter-functions) (quote my-filt)))) (if 
--cl-letf-bound-- (fset (quote my-filt) --cl-letf-save--) (fmakunbound (quote 
my-filt))))
  (let* ((--cl-letf-bound-- (fboundp (quote my-filt))) (--cl-letf-save-- (and 
--cl-letf-bound-- (symbol-function (quote my-filt))))) (unwind-protect (progn 
(fset (quote my-filt) (function* (lambda (text) (block my-filt (setq 
string-buffer ...))))) (add-hook (quote comint-output-filter-functions) (quote 
my-filt)) (unwind-protect (progn (goto-char (process-mark (get-buffer-process 
...))) (let ((start ...) (end ...)) (setq dangling-text (buffer-substring start 
end)) (delete-region start end)) (insert full-body) (comint-send-input nil t) 
(while (progn (goto-char comint-last-input-end) (not ...)) 
(accept-process-output (get-buffer-process ...))) (goto-char (process-mark 
(get-buffer-process ...))) (insert dangling-text)) (remove-hook (quote 
comint-output-filter-functions) (quote my-filt)))) (if --cl-letf-bound-- (fset 
(quote my-filt) --cl-letf-save--) (fmakunbound (quote my-filt)))))
  (letf (((symbol-function (quote my-filt)) (function* (lambda (text) (block 
my-filt (setq string-buffer (concat string-buffer text))))))) (add-hook (quote 
comint-output-filter-functions) (quote my-filt)) (unwind-protect (progn 
(goto-char (process-mark (get-buffer-process (current-buffer)))) (let ((start 
(point)) (end (point-max))) (setq dangling-text (buffer-substring start end)) 
(delete-region start end)) (insert full-body) (comint-send-input nil t) (while 
(progn (goto-char comint-last-input-end) (not (save-excursion (and ... ...)))) 
(accept-process-output (get-buffer-process (current-buffer)))) (goto-char 
(process-mark (get-buffer-process (current-buffer)))) (insert dangling-text)) 
(remove-hook (quote comint-output-filter-functions) (quote my-filt))))
  (letf* (((symbol-function (quote my-filt)) (function* (lambda (text) (block 
my-filt (setq string-buffer (concat string-buffer text))))))) (add-hook (quote 
comint-output-filter-functions) (quote my-filt)) (unwind-protect (progn 
(goto-char (process-mark (get-buffer-process (current-buffer)))) (let ((start 
(point)) (end (point-max))) (setq dangling-text (buffer-substring start end)) 
(delete-region start end)) (insert full-body) (comint-send-input nil t) (while 
(progn (goto-char comint-last-input-end) (not (save-excursion (and ... ...)))) 
(accept-process-output (get-buffer-process (current-buffer)))) (goto-char 
(process-mark (get-buffer-process (current-buffer)))) (insert dangling-text)) 
(remove-hook (quote comint-output-filter-functions) (quote my-filt))))
  (flet ((my-filt (text) (setq string-buffer (concat string-buffer text)))) 
(add-hook (quote comint-output-filter-functions) (quote my-filt)) 
(unwind-protect (progn (goto-char (process-mark (get-buffer-process 
(current-buffer)))) (let ((start (point)) (end (point-max))) (setq 
dangling-text (buffer-substring start end)) (delete-region start end)) (insert 
full-body) (comint-send-input nil t) (while (progn (goto-char 
comint-last-input-end) (not (save-excursion (and ... ...)))) 
(accept-process-output (get-buffer-process (current-buffer)))) (goto-char 
(process-mark (get-buffer-process (current-buffer)))) (insert dangling-text)) 
(remove-hook (quote comint-output-filter-functions) (quote my-filt))))
  (let ((string-buffer "") dangling-text raw) (flet ((my-filt (text) (setq 
string-buffer (concat string-buffer text)))) (add-hook (quote 
comint-output-filter-functions) (quote my-filt)) (unwind-protect (progn 
(goto-char (process-mark (get-buffer-process (current-buffer)))) (let ((start 
(point)) (end (point-max))) (setq dangling-text (buffer-substring start end)) 
(delete-region start end)) (insert full-body) (comint-send-input nil t) (while 
(progn (goto-char comint-last-input-end) (not (save-excursion ...))) 
(accept-process-output (get-buffer-process (current-buffer)))) (goto-char 
(process-mark (get-buffer-process (current-buffer)))) (insert dangling-text)) 
(remove-hook (quote comint-output-filter-functions) (quote my-filt)))) (if (and 
t full-body (string-match (replace-regexp-in-string "\n" "[
\n]+" (regexp-quote (or full-body ""))) string-buffer)) (setq raw (substring 
string-buffer (match-end 0)))) (split-string string-buffer 
comint-prompt-regexp))
  (progn (unless (org-babel-comint-buffer-livep session) (error "buffer %s 
doesn't exist or has no process" session)) (set-buffer session) (let 
((string-buffer "") dangling-text raw) (flet ((my-filt (text) (setq 
string-buffer (concat string-buffer text)))) (add-hook (quote 
comint-output-filter-functions) (quote my-filt)) (unwind-protect (progn 
(goto-char (process-mark (get-buffer-process ...))) (let ((start ...) (end 
...)) (setq dangling-text (buffer-substring start end)) (delete-region start 
end)) (insert full-body) (comint-send-input nil t) (while (progn (goto-char 
comint-last-input-end) (not ...)) (accept-process-output (get-buffer-process 
...))) (goto-char (process-mark (get-buffer-process ...))) (insert 
dangling-text)) (remove-hook (quote comint-output-filter-functions) (quote 
my-filt)))) (if (and t full-body (string-match (replace-regexp-in-string "\n" "[
\n]+" (regexp-quote (or full-body ""))) string-buffer)) (setq raw (substring 
string-buffer (match-end 0)))) (split-string string-buffer 
comint-prompt-regexp)))
  (unwind-protect (progn (unless (org-babel-comint-buffer-livep session) (error 
"buffer %s doesn't exist or has no process" session)) (set-buffer session) (let 
((string-buffer "") dangling-text raw) (flet ((my-filt (text) (setq 
string-buffer (concat string-buffer text)))) (add-hook (quote 
comint-output-filter-functions) (quote my-filt)) (unwind-protect (progn 
(goto-char (process-mark ...)) (let (... ...) (setq dangling-text ...) 
(delete-region start end)) (insert full-body) (comint-send-input nil t) (while 
(progn ... ...) (accept-process-output ...)) (goto-char (process-mark ...)) 
(insert dangling-text)) (remove-hook (quote comint-output-filter-functions) 
(quote my-filt)))) (if (and t full-body (string-match (replace-regexp-in-string 
"\n" "[
\n]+" (regexp-quote ...)) string-buffer)) (setq raw (substring string-buffer 
(match-end 0)))) (split-string string-buffer comint-prompt-regexp))) 
(set-match-data save-match-data-internal (quote evaporate)))
  (let ((save-match-data-internal (match-data))) (unwind-protect (progn (unless 
(org-babel-comint-buffer-livep session) (error "buffer %s doesn't exist or has 
no process" session)) (set-buffer session) (let ((string-buffer "") 
dangling-text raw) (flet ((my-filt (text) (setq string-buffer ...))) (add-hook 
(quote comint-output-filter-functions) (quote my-filt)) (unwind-protect (progn 
(goto-char ...) (let ... ... ...) (insert full-body) (comint-send-input nil t) 
(while ... ...) (goto-char ...) (insert dangling-text)) (remove-hook (quote 
comint-output-filter-functions) (quote my-filt)))) (if (and t full-body 
(string-match (replace-regexp-in-string "\n" "[
\n]+" ...) string-buffer)) (setq raw (substring string-buffer (match-end 0)))) 
(split-string string-buffer comint-prompt-regexp))) (set-match-data 
save-match-data-internal (quote evaporate))))
  (save-match-data (unless (org-babel-comint-buffer-livep session) (error 
"buffer %s doesn't exist or has no process" session)) (set-buffer session) (let 
((string-buffer "") dangling-text raw) (flet ((my-filt (text) (setq 
string-buffer (concat string-buffer text)))) (add-hook (quote 
comint-output-filter-functions) (quote my-filt)) (unwind-protect (progn 
(goto-char (process-mark (get-buffer-process ...))) (let ((start ...) (end 
...)) (setq dangling-text (buffer-substring start end)) (delete-region start 
end)) (insert full-body) (comint-send-input nil t) (while (progn (goto-char 
comint-last-input-end) (not ...)) (accept-process-output (get-buffer-process 
...))) (goto-char (process-mark (get-buffer-process ...))) (insert 
dangling-text)) (remove-hook (quote comint-output-filter-functions) (quote 
my-filt)))) (if (and t full-body (string-match (replace-regexp-in-string "\n" "[
\n]+" (regexp-quote (or full-body ""))) string-buffer)) (setq raw (substring 
string-buffer (match-end 0)))) (split-string string-buffer 
comint-prompt-regexp)))
  (save-excursion (save-match-data (unless (org-babel-comint-buffer-livep 
session) (error "buffer %s doesn't exist or has no process" session)) 
(set-buffer session) (let ((string-buffer "") dangling-text raw) (flet 
((my-filt (text) (setq string-buffer (concat string-buffer text)))) (add-hook 
(quote comint-output-filter-functions) (quote my-filt)) (unwind-protect (progn 
(goto-char (process-mark ...)) (let (... ...) (setq dangling-text ...) 
(delete-region start end)) (insert full-body) (comint-send-input nil t) (while 
(progn ... ...) (accept-process-output ...)) (goto-char (process-mark ...)) 
(insert dangling-text)) (remove-hook (quote comint-output-filter-functions) 
(quote my-filt)))) (if (and t full-body (string-match (replace-regexp-in-string 
"\n" "[
\n]+" (regexp-quote ...)) string-buffer)) (setq raw (substring string-buffer 
(match-end 0)))) (split-string string-buffer comint-prompt-regexp))))
  (org-babel-comint-in-buffer session (let ((string-buffer "") dangling-text 
raw) (flet ((my-filt (text) (setq string-buffer (concat string-buffer text)))) 
(add-hook (quote comint-output-filter-functions) (quote my-filt)) 
(unwind-protect (progn (goto-char (process-mark (get-buffer-process ...))) (let 
((start ...) (end ...)) (setq dangling-text (buffer-substring start end)) 
(delete-region start end)) (insert full-body) (comint-send-input nil t) (while 
(progn (goto-char comint-last-input-end) (not ...)) (accept-process-output 
(get-buffer-process ...))) (goto-char (process-mark (get-buffer-process ...))) 
(insert dangling-text)) (remove-hook (quote comint-output-filter-functions) 
(quote my-filt)))) (if (and t full-body (string-match (replace-regexp-in-string 
"\n" "[
\n]+" (regexp-quote (or full-body ""))) string-buffer)) (setq raw (substring 
string-buffer (match-end 0)))) (split-string string-buffer 
comint-prompt-regexp)))
  (org-babel-comint-with-output (session (if matlabp 
org-babel-octave-eoe-indicator org-babel-octave-eoe-output) t full-body) 
(insert full-body) (comint-send-input nil t))
  (if (and matlabp org-babel-matlab-with-emacs-link) (save-window-excursion 
(with-temp-buffer (insert full-body) (write-region "" (quote ignored) wait-file 
nil nil nil (quote excl)) (matlab-shell-run-region (point-min) (point-max)) 
(message "Waiting for Matlab Emacs Link") (while (file-exists-p wait-file) 
(sit-for 0.01)) "")) (org-babel-comint-with-output (session (if matlabp 
org-babel-octave-eoe-indicator org-babel-octave-eoe-output) t full-body) 
(insert full-body) (comint-send-input nil t)))
  (let* ((tmp-file (org-babel-temp-file (if matlabp "matlab-" "octave-"))) 
(wait-file (org-babel-temp-file "matlab-emacs-link-wait-signal-")) (full-body 
(case result-type (output (mapconcat (function org-babel-chomp) (list body 
org-babel-octave-eoe-indicator) "\n")) (value (if (and matlabp 
org-babel-matlab-with-emacs-link) (concat (format 
org-babel-matlab-emacs-link-wrapper-method body ... ... wait-file) "\n") 
(mapconcat (function org-babel-chomp) (list ... org-babel-octave-eoe-indicator) 
"\n"))))) (raw (if (and matlabp org-babel-matlab-with-emacs-link) 
(save-window-excursion (with-temp-buffer (insert full-body) (write-region "" 
(quote ignored) wait-file nil nil nil (quote excl)) (matlab-shell-run-region 
(point-min) (point-max)) (message "Waiting for Matlab Emacs Link") (while 
(file-exists-p wait-file) (sit-for 0.01)) "")) (org-babel-comint-with-output 
(session (if matlabp org-babel-octave-eoe-indicator 
org-babel-octave-eoe-output) t full-body) (insert full-body) (comint-send-input 
nil t)))) results) (case result-type (value 
(org-babel-octave-import-elisp-from-file tmp-file)) (output (progn (setq 
results (if matlabp (cdr (reverse ...)) (cdr (member 
org-babel-octave-eoe-output ...)))) (mapconcat (function identity) (reverse 
results) "\n")))))
  org-babel-octave-evaluate-session("*MATLAB*" "a=2" value matlab)
  (if session (org-babel-octave-evaluate-session session body result-type 
matlabp) (org-babel-octave-evaluate-external-process body result-type matlabp))
  org-babel-octave-evaluate("*MATLAB*" "a=2" value matlab)
  (let* ((session (funcall (intern (format "org-babel-%s-initiate-session" (if 
matlabp "matlab" "octave"))) (cdr (assoc :session params)) params)) (vars 
(mapcar (function cdr) (org-babel-get-header params :var))) (result-params (cdr 
(assoc :result-params params))) (result-type (cdr (assoc :result-type params))) 
(out-file (cdr (assoc :file params))) (full-body (org-babel-expand-body:generic 
body params (org-babel-variable-assignments:octave params))) (result 
(org-babel-octave-evaluate session (if (org-babel-octave-graphical-output-file 
params) (mapconcat (quote identity) (list "set (0, \"defaultfigurevisible\", 
\"off\");" full-body (format "print -dpng %s" ...)) "\n") full-body) 
result-type matlabp))) (if (org-babel-octave-graphical-output-file params) nil 
(org-babel-reassemble-table result (org-babel-pick-name (cdr (assoc 
:colname-names params)) (cdr (assoc :colnames params))) (org-babel-pick-name 
(cdr (assoc :rowname-names params)) (cdr (assoc :rownames params))))))
  org-babel-execute:octave("a=2" ((:comments . "") (:shebang . "") (:cache . 
"no") (:padline . "") (:noweb . "no") (:tangle . "no") (:exports . "code") 
(:results . "replace") (:hlines . "no") (:padnewline . "yes") (:session . 
"*MATLAB*") (:result-type . value) (:result-params "replace") (:rowname-names) 
(:colname-names)) matlab)
  org-babel-execute:matlab("a=2" ((:comments . "") (:shebang . "") (:cache . 
"no") (:padline . "") (:noweb . "no") (:tangle . "no") (:exports . "code") 
(:results . "replace") (:hlines . "no") (:padnewline . "yes") (:session . 
"*MATLAB*") (:result-type . value) (:result-params "replace") (:rowname-names) 
(:colname-names)))
  org-babel-execute-src-block(nil ("matlab" "a=2" ((:comments . "") (:shebang . 
"") (:cache . "no") (:padline . "") (:noweb . "no") (:tangle . "no") (:exports 
. "code") (:results . "replace") (:hlines . "no") (:padnewline . "yes") 
(:session . "*MATLAB*") (:result-type . value) (:result-params "replace") 
(:rowname-names) (:colname-names)) "" nil 0))
  org-babel-execute-src-block-maybe()
  org-babel-execute-maybe()
  org-babel-execute-safely-maybe()
  run-hook-with-args-until-success(org-babel-execute-safely-maybe)
  org-ctrl-c-ctrl-c(nil)
  call-interactively(org-ctrl-c-ctrl-c nil nil)
----8<-----------------*Bactrace*------------------>8-----