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[helm.git] / helm / interface / cicParser.ml

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-(* 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/.
- *)
-
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(* This is the main (top level) module of a parser for cic objects from xml   *)
-(* files to the internal representation. It uses the modules cicParser2       *)
-(* (objects level) and cicParser3 (terms level)                               *)
-(*                                                                            *)
-(******************************************************************************)
-
-exception Warnings;;
-
-class warner =
-  object 
-    method warn w =
-      print_endline ("WARNING: " ^ w) ;
-      (raise Warnings : unit)
-  end
-;;
-
-exception EmptyUri;;
-
-(* given an uri u it returns the list of tokens of the base uri of u *)
-(* e.g.: token_of_uri "cic:/a/b/c/d.xml" returns ["a" ; "b" ; "c"]   *)
-let tokens_of_uri uri =
- let uri' = UriManager.string_of_uri uri in
- let rec chop_list =
-  function
-     [] -> raise EmptyUri
-   | he::[fn] -> [he]
-   | he::tl -> he::(chop_list tl)
- in
-  let trimmed_uri = Str.replace_first (Str.regexp "cic:") "" uri' in
-   let list_of_tokens = Str.split (Str.regexp "/") trimmed_uri in
-    chop_list list_of_tokens
-;;
-
-(* given the filename of an xml file of a cic object it returns its internal *)
-(* representation. process_annotations is true if the annotations do really  *)
-(* matter                                                                    *)
-let term_of_xml filename uri process_annotations =
- let module Y = Pxp_yacc in
-  try 
-    let d =
-      (* sets the current base uri to resolve relative URIs *)
-      CicParser3.current_sp := tokens_of_uri uri ;
-      CicParser3.current_uri := uri ;
-      CicParser3.process_annotations := process_annotations ;
-      CicParser3.ids_to_targets :=
-       if process_annotations then Some (Hashtbl.create 500) else None ;
-      let config = {Y.default_config with Y.warner = new warner} in
-      Y.parse_document_entity config
-(*PXP       (Y.ExtID (Pxp_types.System filename,
-         new Pxp_reader.resolve_as_file ~url_of_id ()))
-*)     (PxpUriResolver.from_file filename)
-       CicParser3.domspec
-    in
-     let ids_to_targets = !CicParser3.ids_to_targets in
-      let res = (CicParser2.get_term d#root, ids_to_targets) in
-       CicParser3.ids_to_targets := None ; (* let's help the GC *)
-       res
-  with
-   e ->
-     print_endline ("Filename: " ^ filename ^ "\nException: ") ;
-     print_endline (Pxp_types.string_of_exn e) ;
-     raise e
-;;