+++ /dev/null
-(* Copyright (C) 2004-2005, 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/
- *)
-
-(* $Id$ *)
-
-let gzip_bufsize = 10240
-
-type callbacks = {
- start_element: (string -> (string * string) list -> unit) option;
- end_element: (string -> unit) option;
- character_data: (string -> unit) option;
- processing_instruction: (string -> string -> unit) option;
- comment: (string -> unit) option;
-}
-
-let default_callbacks = {
- start_element = None;
- end_element = None;
- character_data = None;
- processing_instruction = None;
- comment = None;
-}
-
-type xml_source =
- [ `Channel of in_channel
- | `File of string
- | `Gzip_channel of Gzip.in_channel
- | `Gzip_file of string
- | `String of string
- ]
-
-type position = int * int
-
-type xml_parser = Expat.expat_parser
-
-exception Parse_error of string
-
-let create_parser callbacks =
- let expat_parser = Expat.parser_create ~encoding:None in
- (match callbacks.start_element with
- | Some f -> Expat.set_start_element_handler expat_parser f
- | _ -> ());
- (match callbacks.end_element with
- | Some f -> Expat.set_end_element_handler expat_parser f
- | _ -> ());
- (match callbacks.character_data with
- | Some f -> Expat.set_character_data_handler expat_parser f
- | _ -> ());
- (match callbacks.processing_instruction with
- | Some f -> Expat.set_processing_instruction_handler expat_parser f
- | _ -> ());
- (match callbacks.comment with
- | Some f -> Expat.set_comment_handler expat_parser f
- | _ -> ());
- expat_parser
-
-let final = Expat.final
-
-let get_position expat_parser =
- (Expat.get_current_line_number expat_parser,
- Expat.get_current_column_number expat_parser)
-
-let parse expat_parser =
- let parse_fun = Expat.parse expat_parser in
- let rec aux = function
- | `Channel ic ->
- (try
- while true do parse_fun (input_line ic ^ "\n") done
- with End_of_file -> final expat_parser)
- | `File fname ->
- let ic = open_in fname in
- aux (`Channel ic);
- close_in ic
- | `Gzip_channel ic ->
- let buf = String.create gzip_bufsize in
- (try
- while true do
- let bytes = Gzip.input ic buf 0 gzip_bufsize in
- if bytes = 0 then raise End_of_file;
- parse_fun (String.sub buf 0 bytes)
- done
- with End_of_file -> final expat_parser)
- | `Gzip_file fname ->
- let ic = Gzip.open_in fname in
- aux (`Gzip_channel ic);
- Gzip.close_in ic
- | `String s -> parse_fun s
- in
- aux
-
-let parse expat_parser xml_source =
- try
- parse expat_parser xml_source
- with Expat.Expat_error xml_error ->
- raise (Parse_error (Expat.xml_error_to_string xml_error))
-