* licenses updated

[helm.git] / helm / DEVEL / mathml_editor / ocaml / ml_mathml_editor.c

diff --git a/helm/DEVEL/mathml_editor/ocaml/ml_mathml_editor.c b/helm/DEVEL/mathml_editor/ocaml/ml_mathml_editor.c
index bbe8884353d7d70a4013de14b8aa157ec74f7d32..9b78aeb4101ade83155400f41882b5a43fc3c7c0 100644 (file)
--- a/helm/DEVEL/mathml_editor/ocaml/ml_mathml_editor.c
+++ b/helm/DEVEL/mathml_editor/ocaml/ml_mathml_editor.c
@@ -1,3 +1,29 @@
+/* This file is part of EdiTeX, an editor of mathematical
+ * expressions based on TeX syntax.
+ * 
+ * Copyright (C) 2002-2003 Luca Padovani <lpadovan@cs.unibo.it>,
+ *                    2003 Paolo Marinelli <pmarinel@cs.unibo.it>.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * For more information, please visit the project's home page
+ * http://helm.cs.unibo.it/editex/
+ * or send an email to <lpadovan@cs.unibo.it>
+ */
+
+#include <assert.h>
 
 #include <caml/memory.h>
 #include <caml/custom.h>
@@ -16,7 +42,7 @@ typedef struct
 ml_Editor*
 Editor_val(value v)
 {
-  ml_Editor* editor = (ml_Editor*) Data_custom_val(v);
+  ml_Editor* editor = *((ml_Editor**) Data_custom_val(v));
   assert(editor != NULL);
   return editor;
 }
@@ -29,6 +55,7 @@ ml_mathml_editor_finalize(value v)
 
   remove_global_root(&editor->callback);
   c_mathml_editor_destroy(editor->c_editor);
+  free(editor);
 }
 
 void
@@ -55,8 +82,9 @@ ml_mathml_editor_new(value dictionary,
     custom_deserialize_default
   };
   
-  value v = alloc_custom(&ops, sizeof(ml_Editor), 0, 1);
-  ml_Editor* ml_editor = (ml_Editor*) Data_custom_val(v);
+  value v = alloc_custom(&ops, sizeof(ml_Editor*), 0, 1);
+  ml_Editor** ml_editor_ref = (ml_Editor**) Data_custom_val(v);
+  ml_Editor* ml_editor = *ml_editor_ref = malloc(sizeof(ml_Editor));
   ml_editor->c_editor = c_mathml_editor_new(Document_val(dictionary),
                                            Document_val(tml_mml),
                                            Document_val(tml_tex),