--- a/src/XMLDocumentConstructor.h	Sun Mar 07 17:50:11 2021 +0100
+++ b/src/XMLDocumentConstructor.h	Sat Mar 13 17:58:09 2021 +0100
@@ -16,12 +16,16 @@
  */
 #pragma once
 
+#include <libxml++-2.6/libxml++/libxml++.h>
+
+#include "lib/BasicASN1Reader.h"
+#include "lib/GenericASN1ContentHandler.h"
+#include "lib/DOMBuildingSAXContentHandler.h"
+
 namespace relpipe {
 namespace in {
 namespace xmltable {
 
-#include <libxml++-2.6/libxml++/libxml++.h>
-
 class XMLDocumentConstructor {
 private:
 	std::istream* input = nullptr;
@@ -30,11 +34,15 @@
 
 	XMLDocumentConstructor(std::istream* input, xmlpp::DomParser* parser) : input(input), parser(parser) {
 	}
-	
+
 	void setOption(const std::string& uri, const std::string& value) {
 	}
 
 	void process() {
+
+		relpipe::in::asn1::lib::BasicASN1Reader reader;
+		reader.write(nullptr, 0); // FIXME: transfer data from input to reader + use DOMBuildingSAXContentHandler
+
 		parser->parse_stream(*input);
 	}
 };