X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=helm%2Focaml%2Fxml%2FxmlPushParser.mli;fp=helm%2Focaml%2Fxml%2FxmlPushParser.mli;h=c13481c91e7677d809224cdd741e46199bb8ed0d;hp=0000000000000000000000000000000000000000;hb=792b5d29ebae8f917043d9dd226692919b5d6ca1;hpb=a14a8c7637fd0b95e9d4deccb20c6abc98e8f953 diff --git a/helm/ocaml/xml/xmlPushParser.mli b/helm/ocaml/xml/xmlPushParser.mli new file mode 100644 index 000000000..c13481c91 --- /dev/null +++ b/helm/ocaml/xml/xmlPushParser.mli @@ -0,0 +1,78 @@ +(* 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/ + *) + +(** {2 XLM push parser generic interface} + * Do not depend on CIC *) + + (** callbacks needed to instantiate a parser *) +type callbacks = { + start_element: + (string -> (string * string) list -> unit) option; (* tag, attr list *) + end_element: (string -> unit) option; (* tag *) + character_data: (string -> unit) option; (* data *) + processing_instruction: + (string -> string -> unit) option; (* target, value *) + comment: (string -> unit) option; (* value *) +} + + (** do nothing callbacks (all set to None) *) +val default_callbacks: callbacks + + (** source from which parse an XML file *) +type xml_source = + [ `Channel of in_channel + | `File of string + | `Gzip_channel of Gzip.in_channel + | `Gzip_file of string + | `String of string + ] + + (** source position in a XML source. + * A position is a pair *) +type position = int * int + +type xml_parser + + (** raised when a parse error occurs, argument is an error message. + * This exception carries no position information, but it should be get using + * get_position below *) +exception Parse_error of string + + (** Create a push parser which invokes the given callbacks *) +val create_parser: callbacks -> xml_parser + + (** Parse XML data from a given source with a given parser + * @raise Parse_error *) +val parse: xml_parser -> xml_source -> unit + + (** Inform the parser that parsing is completed, needed only when source is + * `String, for other sources it is automatically invoked when the end of file + * is reached + * @raise Parse_error *) +val final: xml_parser -> unit + + (** @return current pair *) +val get_position: xml_parser -> position +