--- /dev/null
+(*
+ * Copyright (C) 2000, 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/.
+ *)
+
+exception Http_getter_bad_request of string
+exception Http_getter_unresolvable_URI of string
+exception Http_getter_invalid_URI of string
+exception Http_getter_invalid_URL of string
+exception Http_getter_invalid_RDF_class of string
+exception Http_getter_internal_error of string
+
+type http_getter_encoding = Enc_normal | Enc_gzipped
+type http_getter_answer_format = Fmt_text | Fmt_xml
+type http_getter_ls_flag = No | Yes | Ann
+
+type http_getter_xml_uri =
+ | Cic of string
+ | Theory of string
+type http_getter_rdf_uri = string * http_getter_xml_uri
+type http_getter_uri =
+ | Xml_uri of http_getter_xml_uri
+ | Rdf_uri of http_getter_rdf_uri
+