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diff --git a/matita/components/syntax_extensions/utf8Macro.mli b/matita/components/syntax_extensions/utf8Macro.mli
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+(* Copyright (C) 2004, HELM Team.
+ * 
+ * This file is part of HELM, an Hypertextual, Electronic
+ * Library of Mathematics, developed at the Computer Science
+ * Department, University of Bologna, Italy.
+ * 
+ * HELM is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * 
+ * HELM 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with HELM; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA  02111-1307, USA.
+ * 
+ * For details, see the HELM World-Wide-Web page,
+ * http://helm.cs.unibo.it/
+ *)
+
+exception Macro_not_found of string
+exception Utf8_not_found of string
+
+  (** @param macro name
+     @return utf8 string *)
+val expand: string -> string
+
+  (** @param tex TeX like command (e.g. \forall, \lnot, ...)
+   * @return unicode character corresponding to the command if it exists, or the
+   * unchanged command if not *)
+val unicode_of_tex: string -> string
+
+  (** ... the other way round *)
+val tex_of_unicode: string -> string list
+
+val pp_table: unit -> (string * (string list)) list