--- /dev/null
+(* 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/
+ *)
+
+(* $Id$ *)
+
+open Printf
+
+open DisambiguateTypes
+
+exception Choice_not_found of string Lazy.t
+
+let num_choices = ref []
+
+let add_num_choice choice = num_choices := choice :: !num_choices
+
+let has_description dsc = (fun x -> fst x = dsc)
+
+let lookup_num_choices () = !num_choices
+
+let lookup_num_by_dsc dsc =
+ try
+ List.find (has_description dsc) !num_choices
+ with Not_found -> raise (Choice_not_found (lazy ("Num with dsc " ^ dsc)))
+
+let mk_choice (dsc, args, appl_pattern) =
+ dsc,
+ (fun env _ cic_args ->
+ let env',rest =
+ let names =
+ List.map (function CicNotationPt.IdentArg (_, name) -> name) args
+ in
+ let rec combine_with_rest l1 l2 =
+ match l1,l2 with
+ _::_,[] -> raise (Invalid_argument "combine_with_rest")
+ | [],rest -> [],rest
+ | he1::tl1,he2::tl2 ->
+ let l,rest = combine_with_rest tl1 tl2 in
+ (he1,he2)::l,rest
+ in
+ try
+ combine_with_rest names cic_args
+ with Invalid_argument _ ->
+ raise (Invalid_choice (None, lazy ("The notation " ^ dsc ^ " expects more arguments")))
+ in
+ let combined =
+ TermAcicContent.instantiate_appl_pattern env' appl_pattern
+ in
+ match rest with
+ [] -> combined
+ | _::_ -> Cic.Appl (combined::rest))
+
+let lookup_symbol_by_dsc symbol dsc =
+ try
+ mk_choice
+ (List.find
+ (fun (dsc', _, _) -> dsc = dsc')
+ (TermAcicContent.lookup_interpretations symbol))
+ with TermAcicContent.Interpretation_not_found | Not_found ->
+ raise (Choice_not_found (lazy (sprintf "Symbol %s, dsc %s" symbol dsc)))
+