+(* Copyright (C) 2000-2002, 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://cs.unibo.it/helm/.
+ *)
+
+(******************************************************************************)
+(* *)
+(* PROJECT HELM *)
+(* *)
+(* Claudio Sacerdoti Coen <sacerdot@cs.unibo.it> *)
+(* 06/01/2002 *)
+(* *)
+(* *)
+(******************************************************************************)
+
+let domImpl = Gdome.domImplementation ()
+let helm_ns = Gdome.domString "http://www.cs.unibo.it/helm"
+let xlink_ns = Gdome.domString "http://www.w3.org/1999/xlink"
+let mathml_ns = Gdome.domString "http://www.w3.org/1998/Math/MathML"
+let boxml_ns = Gdome.domString "http://helm.cs.unibo.it/2003/BoxML"
+
+ (* TODO BRRRRR .... *)
+ (** strip first 4 line of a string, used to strip xml declaration and doctype
+ declaration from XML strings generated by Xml.pp_to_string *)
+let strip_xml_headings =
+ let xml_headings_RE = Pcre.regexp "^.*\n.*\n.*\n.*\n" in
+ fun s ->
+ Pcre.replace ~rex:xml_headings_RE s
+