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[helm.git] / helm / ocaml / getter / getter.ml

diff --git a/helm/ocaml/getter/getter.ml b/helm/ocaml/getter/getter.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                                 *)
-(*                                                                            *)
-(******************************************************************************)
-
-let getter_url = ref Configuration.getter_url;;
-
-let update () =
- (* deliver update request to http_getter *)
- ClientHTTP.send (!getter_url ^ "update")
-;;
-
-type format =
-   Normal
- | GZipped
-;;
-
-let getxml ?(format=Normal) ?(patchdtd=true) uri =
- (* deliver getxml request to http_getter *)
- ClientHTTP.get_and_save_to_tmp
-  (!getter_url ^ "getxml" ^
-    "?uri=" ^ UriManager.string_of_uri uri ^
-    "&format=" ^ (match format with Normal -> "normal" | GZipped -> "gzipped") ^
-    "&patch_dtd=" ^ (match patchdtd with true -> "yes" | false -> "no")
-  )
-;;
-
-let register uri url =
- (* deliver register request to http_getter *)
- ClientHTTP.send
-  (!getter_url ^ "register" ^
-    "?uri=" ^ (UriManager.string_of_uri uri) ^
-    "&url=" ^ url)
-;;
-
-exception Unresolved;;
-exception UnexpectedGetterOutput;;
-
-(* resolve_result is needed because it is not possible to raise *)
-(* an exception in a pxp even-processing callback. Too bad.     *)
-type resolve_result =
-   Unknown
- | Exception of exn
- | Resolved of string
-
-let resolve uri =
- (* deliver resolve request to http_getter *)
- let doc =
-  ClientHTTP.get
-   (!getter_url ^ "resolve" ^ "?uri=" ^ (UriManager.string_of_uri uri))
- in
-  let res = ref Unknown in
-   Pxp_yacc.process_entity Pxp_yacc.default_config (`Entry_content [])
-    (Pxp_yacc.create_entity_manager ~is_document:true Pxp_yacc.default_config
-     (Pxp_yacc.from_string doc))
-    (function
-        Pxp_yacc.E_start_tag ("url",["value",url],_) -> res := Resolved url
-      | Pxp_yacc.E_start_tag ("unresolved",[],_) -> res := Exception Unresolved
-      | Pxp_yacc.E_start_tag _ -> res := Exception UnexpectedGetterOutput
-      | _ -> ()
-    ) ;
-   match !res with
-      Unknown -> raise UnexpectedGetterOutput
-    | Exception e -> raise e
-    | Resolved url -> url
-;;