--- /dev/null
+(* Copyright (C) 2000-2002, 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/.
+ *)
+
+let update_dom ~(from : Gdome.document) (d : Gdome.document) =
+ let rec aux (p: Gdome.node) (f: Gdome.node) (t: Gdome.node) =
+(* Perche' non andava?
+ if f#get_localName = t#get_localName &&
+ f#get_namespaceURI = t#get_namespaceURI
+*)
+ match
+ f#get_nodeType,t#get_nodeType,
+ f#get_namespaceURI,t#get_namespaceURI,
+ f#get_localName,t#get_localName
+ with
+ GdomeNodeTypeT.TEXT_NODE,GdomeNodeTypeT.TEXT_NODE,_,_,_,_ when
+ match f#get_nodeValue, t#get_nodeValue with
+ Some v, Some v' -> v#to_string = v'#to_string
+ | _,_ -> assert false
+ ->
+prerr_endline ("XML_DIFF: preservo il nodo testo " ^ match f#get_nodeValue with Some v -> v#to_string | None -> assert false);
+ ()
+ | GdomeNodeTypeT.ELEMENT_NODE,GdomeNodeTypeT.ELEMENT_NODE,
+ Some nu, Some nu', Some ln, Some ln' when
+ ln#to_string = ln'#to_string && nu#to_string = nu'#to_string ->
+prerr_endline ("XML_DIFF: preservo il nodo "^ nu#to_string ^ ":" ^ln#to_string);
+ begin
+ match f#get_attributes, t#get_attributes with
+ Some fattrs, Some tattrs ->
+ let flen = fattrs#get_length in
+ let tlen = tattrs#get_length in
+ let processed = ref [] in
+ for i = 0 to flen -1 do
+ match fattrs#item i with
+ None -> assert false
+ | Some attr ->
+ match attr#get_namespaceURI with
+ None ->
+ (* Back to DOM Level 1 ;-( *)
+ begin
+ let name = attr#get_nodeName in
+ match tattrs#getNamedItem ~name with
+ None ->
+prerr_endline ("XML_DIFF: rimuovo l'attributo " ^ name#to_string);
+ ignore (f#removeChild attr)
+ | Some attr' ->
+ processed :=
+ (None,Some name)::!processed ;
+ match attr#get_nodeValue, attr'#get_nodeValue with
+ Some v1, Some v2 when
+ v1#to_string = v2#to_string
+ || (name#to_string = "selection" &&
+ nu#to_string =
+ "http://www.w3.org/1998/Math/MathML" &&
+ ln#to_string = "maction")
+ ->
+prerr_endline ("XML_DIFF: DOM 1; preservo l'attributo " ^ name#to_string);
+ ()
+ | Some _, Some _ ->
+prerr_endline ("XML_DIFF: DOM 1; rimpiazzo l'attributo " ^ name#to_string);
+ let attr'' = from#importNode attr' true in
+ ignore (fattrs#setNamedItem attr'')
+ | _,_ -> assert false
+ end
+ | Some namespaceURI ->
+ let localName =
+ match attr#get_localName with
+ Some v -> v
+ | None -> assert false
+ in
+ match
+ tattrs#getNamedItemNS ~namespaceURI ~localName
+ with
+ None ->
+prerr_endline ("XML_DIFF: rimuovo l'attributo " ^ localName#to_string);
+ ignore (f#removeChild attr)
+ | Some attr' ->
+ processed :=
+ (Some namespaceURI,Some localName)::!processed ;
+ (*CSC: questo mi dice read-only ;-(
+ attr#set_nodeValue attr'#get_nodeValue *)
+ (*CSC: questo mi abortisce con una assert
+ let attr'' = from#importNode attr' true in
+ ignore(f#replaceChild ~newChild:attr'' ~oldChild:attr)*)
+ match attr#get_nodeValue, attr'#get_nodeValue with
+ Some v1, Some v2 when
+ v1#to_string = v2#to_string ->
+prerr_endline ("XML_DIFF: DOM 2; preservo l'attributo " ^ namespaceURI#to_string ^ ":" ^ localName#to_string);
+ ()
+ | Some _, Some _ ->
+prerr_endline ("XML_DIFF: DOM 2; rimpiazzo l'attributo " ^ namespaceURI#to_string ^ ":" ^ localName#to_string);
+ let attr'' = from#importNode attr' true in
+ ignore (fattrs#setNamedItem attr'')
+ | _,_ -> assert false
+ done ;
+ for i = 0 to tlen -1 do
+ match tattrs#item i with
+ None -> assert false
+ | Some attr ->
+let debugs = ref "" in
+ let namespaceURI,localName =
+ match attr#get_namespaceURI with
+ None ->
+debugs := ("XML_DIFF: DOM 1.0; creo un nuovo attributo " ^ attr#get_nodeName#to_string) ;
+ None,attr#get_nodeName
+ | Some namespaceURI as v ->
+debugs := ("XML_DIFF: DOM 2.0; creo un nuovo attributo " ^ namespaceURI#to_string ^ ":" ^ match attr#get_localName with Some v -> v#to_string | None -> assert false);
+ v, match attr#get_localName with
+ None -> assert false
+ | Some v -> v
+ in
+ if
+ not
+ (List.exists
+ (function
+ None,Some localName' ->
+ (match namespaceURI with
+ None ->
+ localName#to_string = localName'#to_string
+ | Some _ -> false)
+ | Some namespaceURI', Some localName' ->
+ (match namespaceURI with
+ None -> false
+ | Some namespaceURI ->
+ localName#to_string = localName'#to_string &&
+ namespaceURI#to_string=namespaceURI'#to_string
+ )
+ | _,_ -> assert false
+ ) !processed)
+ then
+ let attr' = from#importNode attr false in
+prerr_endline !debugs ;
+ ignore (fattrs#setNamedItem attr')
+ done
+ | _,_ -> assert false
+ end ;
+ let fchildren = f#get_childNodes in
+ let tchildren = t#get_childNodes in
+ let rec dumb_diff =
+ function
+ [],[] -> ()
+ | he1::tl1,he2::tl2 ->
+prerr_endline "XML_DIFF: processo una coppia di figli" ;
+ aux f he1 he2 ;
+ dumb_diff (tl1,tl2)
+ | [],tl2 ->
+prerr_endline "XML_DIFF: appendo i nodi residui" ;
+ List.iter
+ (function n ->
+ let n' = from#importNode n true in
+ ignore (f#appendChild n')
+ ) tl2
+ | tl1,[] ->
+prerr_endline "XML_DIFF: cancello i nodi residui" ;
+ List.iter (function n -> ignore (f#removeChild n)) tl1
+ in
+ let node_list_of_nodeList nl =
+ let rec aux i =
+ match nl#item ~index:i with
+ None -> []
+ | Some n when
+ n#get_nodeType = GdomeNodeTypeT.ELEMENT_NODE
+ or n#get_nodeType = GdomeNodeTypeT.TEXT_NODE ->
+ n::(aux (i+1))
+ | Some n ->
+prerr_endline ("XML_DIFF: mi sto perdendo i nodi di tipo " ^ string_of_int (Obj.magic n#get_nodeType)) ;
+ aux (i+1)
+ in
+ aux 0
+ in
+for i = 0 to fchildren#get_length - 1 do
+match fchildren#item i with
+None -> prerr_endline "EUREKA: ma siamo matti?"
+|Some n ->
+match n#get_nodeType with GdomeNodeTypeT.ATTRIBUTE_NODE -> prerr_endline "EUREKA attr" | GdomeNodeTypeT.CDATA_SECTION_NODE -> prerr_endline "EUREKA text" | GdomeNodeTypeT.DOCUMENT_FRAGMENT_NODE -> prerr_endline "EUREKA document fragment" | _ -> prerr_endline ("EUREKA " ^ string_of_int (Obj.magic n#get_nodeType))
+done ;
+prerr_endline("XML_DIFF: from ha " ^ string_of_int fchildren#get_length ^ " nodi, ovvero " ^ string_of_int (List.length (node_list_of_nodeList fchildren)) ^ " figli");
+prerr_endline("XML_DIFF: to ha " ^ string_of_int tchildren#get_length ^ " nodi, ovvero " ^ string_of_int (List.length (node_list_of_nodeList tchildren)) ^ " figli");
+ dumb_diff
+ (node_list_of_nodeList fchildren, node_list_of_nodeList tchildren)
+ | t1,t2,_,_,_,_ when
+ (t1 = GdomeNodeTypeT.ELEMENT_NODE || t1 = GdomeNodeTypeT.TEXT_NODE) &&
+ (t2 = GdomeNodeTypeT.ELEMENT_NODE || t2 = GdomeNodeTypeT.TEXT_NODE) ->
+ let t' = from#importNode t true in
+prerr_endline "XML_DIFF: importo il nodo" ;
+(*
+prerr_endline ("Rimpiazzo" ^ (match f#get_namespaceURI with Some s -> s#to_string) ^ ":" ^ (match f#get_localName with Some s -> s#to_string) ^ " con " ^ (match t#get_namespaceURI with Some s -> s#to_string) ^ ":" ^ (match t#get_localName with Some s -> s#to_string) ^ " in " ^ (match p#get_localName with Some s -> s#to_string | None -> "_")) ;
+*)
+ ignore (p#replaceChild ~newChild:t' ~oldChild:f)
+ | _,_,_,_,_,_ -> assert false
+ in
+ try
+ aux (d :> Gdome.node)
+ (from#get_documentElement :> Gdome.node)
+ (d#get_documentElement :> Gdome.node)
+ with
+ (GdomeInit.DOMException (e,msg) as ex) ->
+(*
+ let module E = GdomeDOMExceptionT in
+*)
+ prerr_endline
+ ("DOM EXCEPTION: " ^ msg ^ " --- " ^
+string_of_int (Obj.magic e)) ;
+ raise ex
+ (*
+ match e with
+ E.NO_ERR -> "NO_ERR"
+ | E.INDEX_SIZE_ERR -> "INDEX_SIZE_ERR"
+ | E.DOMSTRING_SIZE_ERR -> "DOMSTRING_SIZE_ERR"
+ | E.HIERARCHY_REQUEST_ERR -> "HIERARCHY_REQUEST_ERR"
+ | E.WRONG_DOCUMENT_ERR -> "WRONG_DOCUMENT_ERR"
+ | E.INVALID_CHARACTER_ERR -> "INVALID_CHARACTER_ERR"
+ | E.NO_DATA_ALLOWED_ERR -> "NO_DATA_ALLOWER_ERR"
+ | E.NO_MODIFICATION_ALLOWED_ERR -> "NO_MODIFICATION_ALLOWED_ERR"
+ | E.NOT_FOUND_ERR -> "NOT_FOUND_ERR"
+ | E.NOT_SUPPORTED_ERR -> "NOT_SUPPORTED_ERR"
+ | E.INUSE_ATTRIBUTE_ERR -> "INUSE_ATTRIBUTE_ERR"
+ | E.INVALID_STATE_ERR -> "INVALID_STATE_ERR"
+ | E.SYNTAX_ERR -> "SYNTAX_ERR"
+ | E.INVALID_MODIFICATION_ERR -> "INVALID_MODIFICATION_ERR"
+ | E.NAMESPACE_ERR -> "NAMESPACE_ERR"
+ | E.INVALID_ACCESS_ERR -> "INVALID_ACCESS_ERR"
+*)
+ | e ->
+ prerr_endline "PROBLEMA" ;
+ raise e
+;;
projects / helm.git / blobdiff