Update: try to get colorisation in the html generated from the org in the guide (still not working)

guides/users/Makefile

@@ -7,6 +7,7 @@ all:README.html
 
 EMACS=emacs  \
      --load=htmlize.el \
+	  --load=ob-ocaml.el \
      --load=emacs-org.el  
 
 %.html2:
@@ -14,7 +15,3 @@ EMACS=emacs  \
 
 clean:
 	rm *.html
-
-
-
- 

guides/users/README.org

@@ -72,6 +72,7 @@ registred using the string used in dot file algo fields with:
 
 which profiles is defined in [[https://gricad-gitlab.univ-grenoble-alpes.fr/verimag/synchrone/sasa/blob/master/lib/algo/algo.mli][algo.mli]]
 
+
 #+BEGIN_SRC ocaml
 let x = ref 6 in 
  !x

guides/users/el/ob-ocaml.el

-;;; ob-ocaml.el --- org-babel functions for ocaml evaluation
+;;; ob-ocaml.el --- Babel Functions for Ocaml        -*- lexical-binding: t; -*-
 
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
+;; Copyright (C) 2009-2017 Free Software Foundation, Inc.
 
 ;; Author: Eric Schulte
 ;; Keywords: literate programming, reproducible research
@@ -19,7 +19,7 @@
 ;; GNU General Public License for more details.
 
 ;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 ;;; Commentary:
 
@@ -36,12 +36,12 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-comint)
 (require 'comint)
-(eval-when-compile (require 'cl))
 
 (declare-function tuareg-run-caml "ext:tuareg" ())
+(declare-function tuareg-run-ocaml "ext:tuareg" ())
 (declare-function tuareg-interactive-send-input "ext:tuareg" ())
+(declare-function org-trim "org" (s &optional keep-lead))
 
 (defvar org-babel-tangle-lang-exts)
 (add-to-list 'org-babel-tangle-lang-exts '("ocaml" . "ml"))
@@ -51,19 +51,26 @@
 (defvar org-babel-ocaml-eoe-indicator "\"org-babel-ocaml-eoe\";;")
 (defvar org-babel-ocaml-eoe-output "org-babel-ocaml-eoe")
 
+(defcustom org-babel-ocaml-command "ocaml"
+  "Name of the command for executing Ocaml code."
+  :version "24.4"
+  :package-version '(Org . "8.0")
+  :group 'org-babel
+  :type 'string)
+
 (defun org-babel-execute:ocaml (body params)
   "Execute a block of Ocaml code with Babel."
-  (let* ((vars (mapcar #'cdr (org-babel-get-header params :var)))
-         (full-body (org-babel-expand-body:generic
+  (let* ((full-body (org-babel-expand-body:generic
 		     body params
 		     (org-babel-variable-assignments:ocaml params)))
          (session (org-babel-prep-session:ocaml
-		   (cdr (assoc :session params)) params))
+		   (cdr (assq :session params)) params))
          (raw (org-babel-comint-with-output
-		  (session org-babel-ocaml-eoe-output t full-body)
+		  (session org-babel-ocaml-eoe-output nil full-body)
 		(insert
 		 (concat
-		  (org-babel-chomp full-body)"\n"org-babel-ocaml-eoe-indicator))
+		  (org-babel-chomp full-body) ";;\n"
+		  org-babel-ocaml-eoe-indicator))
 		(tuareg-interactive-send-input)))
 	 (clean
 	  (car (let ((re (regexp-quote org-babel-ocaml-eoe-output)) out)
@@ -72,16 +79,31 @@
 					 (progn (setq out nil) line)
 				       (when (string-match re line)
 					 (progn (setq out t) nil))))
-				 (mapcar #'org-babel-trim (reverse raw))))))))
-    (org-babel-reassemble-table
-     (org-babel-ocaml-parse-output (org-babel-trim clean))
-     (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))))))
+				   (mapcar #'org-trim (reverse raw)))))))
+	 (raw (org-trim clean))
+	 (result-params (cdr (assq :result-params params))))
+    (string-match
+     "\\(\\(.*\n\\)*\\)[^:\n]+ : \\([^=\n]+\\) =\\(\n\\| \\)\\(.+\\)$"
+     raw)
+    (let ((output (match-string 1 raw))
+	  (type (match-string 3 raw))
+	  (value (match-string 5 raw)))
+      (org-babel-reassemble-table
+       (org-babel-result-cond result-params
+	 (cond
+	  ((member "verbatim" result-params) raw)
+	  ((member "output" result-params) output)
+	  (t raw))
+	 (if (and value type)
+	     (org-babel-ocaml-parse-output value type)
+	   raw))
+       (org-babel-pick-name
+	(cdr (assq :colname-names params)) (cdr (assq :colnames params)))
+       (org-babel-pick-name
+	(cdr (assq :rowname-names params)) (cdr (assq :rownames params)))))))
 
 (defvar tuareg-interactive-buffer-name)
-(defun org-babel-prep-session:ocaml (session params)
+(defun org-babel-prep-session:ocaml (session _params)
   "Prepare SESSION according to the header arguments in PARAMS."
   (require 'tuareg)
   (let ((tuareg-interactive-buffer-name (if (and (not (string= session "none"))
@@ -89,15 +111,17 @@
                                                  (stringp session))
                                             session
                                           tuareg-interactive-buffer-name)))
-    (save-window-excursion (tuareg-run-caml)
-                           (get-buffer tuareg-interactive-buffer-name))))
+    (save-window-excursion (if (fboundp 'tuareg-run-process-if-needed)
+	 (tuareg-run-process-if-needed org-babel-ocaml-command)
+       (tuareg-run-caml)))
+    (get-buffer tuareg-interactive-buffer-name)))
 
 (defun org-babel-variable-assignments:ocaml (params)
-  "Return list of ocaml statements assigning the block's variables"
+  "Return list of ocaml statements assigning the block's variables."
   (mapcar
    (lambda (pair) (format "let %s = %s;;" (car pair)
 			  (org-babel-ocaml-elisp-to-ocaml (cdr pair))))
-   (mapcar #'cdr (org-babel-get-header params :var))))
+   (org-babel--get-vars params)))
 
 (defun org-babel-ocaml-elisp-to-ocaml (val)
   "Return a string of ocaml code which evaluates to VAL."
@@ -105,37 +129,40 @@
       (concat "[|" (mapconcat #'org-babel-ocaml-elisp-to-ocaml val "; ") "|]")
     (format "%S" val)))
 
-(defun org-babel-ocaml-parse-output (output)
-  "Parse OUTPUT.
-OUTPUT is string output from an ocaml process."
-  (let ((regexp "%s = \\(.+\\)$"))
-    (cond
-     ((string-match (format regexp "string") output)
-      (org-babel-read (match-string 1 output)))
-     ((or (string-match (format regexp "int") output)
-          (string-match (format regexp "float") output))
-      (string-to-number (match-string 1 output)))
-     ((string-match (format regexp "list") output)
-      (org-babel-ocaml-read-list (match-string 1 output)))
-     ((string-match (format regexp "array") output)
-      (org-babel-ocaml-read-array (match-string 1 output)))
-     (t (message "don't recognize type of %s" output) output))))
+(defun org-babel-ocaml-parse-output (value type)
+  "Parse VALUE of type TYPE.
+VALUE and TYPE are string output from an ocaml process."
+  (cond
+   ((string= "string" type)
+    (org-babel-read value))
+   ((or (string= "int" type)
+	(string= "float" type))
+    (string-to-number value))
+   ((string-match "list" type)
+    (org-babel-ocaml-read-list value))
+   ((string-match "array" type)
+    (org-babel-ocaml-read-array value))
+   (t (message "don't recognize type %s" type) value)))
 
 (defun org-babel-ocaml-read-list (results)
   "Convert RESULTS into an elisp table or string.
 If the results look like a table, then convert them into an
 Emacs-lisp table, otherwise return the results as a string."
+  ;; XXX: This probably does not behave as expected when a semicolon
+  ;; is in a string in a list.  The same comment applies to
+  ;; `org-babel-ocaml-read-array' below (with even more failure
+  ;; modes).
   (org-babel-script-escape (replace-regexp-in-string ";" "," results)))
 
 (defun org-babel-ocaml-read-array (results)
   "Convert RESULTS into an elisp table or string.
 If the results look like a table, then convert them into an
 Emacs-lisp table, otherwise return the results as a string."
-    (org-babel-script-escape
-     (replace-regexp-in-string
-      "\\[|" "[" (replace-regexp-in-string
-		  "|\\]" "]" (replace-regexp-in-string
-			      "; " "," results)))))
+  (org-babel-script-escape
+   (replace-regexp-in-string
+    "\\[|" "[" (replace-regexp-in-string
+		"|\\]" "]" (replace-regexp-in-string
+			    "; " "," results)))))
 
 (provide 'ob-ocaml)
 

guides/users/emacs-org.el

@@ -6,12 +6,15 @@
 (setq auto-mode-alist (cons '("\\.lut$" . lutin-mode) auto-mode-alist))
 (setq auto-mode-alist (cons '("\\.lus$" . lustre-mode) auto-mode-alist))
 (setq auto-mode-alist (cons '("\\.rif$" . rif-mode) auto-mode-alist))
+(setq auto-mode-alist (cons '("\\.ml$" . tuareg-mode) auto-mode-alist))
 
 
 (autoload 'rif-mode "rif" "" t)
 (autoload 'lutin-mode "lutin" "Edition de code lutin" t)
 (autoload 'lustre-mode "lustre" "Edition de code lustre" t)
 
+;;(autoload 'tuareg-mode "ocaml" "" t)
+
 
 (require 'org)
 
@@ -35,6 +38,7 @@
   (and (not (string= lang "dot")) (not (string= lang "sh"))))
 (setq org-confirm-babel-evaluate 'my-org-confirm-babel-evaluate)
 
+(mapcar #'cdr (org-babel--get-vars params))
 
 (org-babel-do-load-languages
  'org-babel-load-languages
@@ -42,6 +46,7 @@
    (ocaml . t)
    (dot . t)
    (lustre . t)
+   (lutin . t)
    (rif . t)
    (sh . t)
    )