--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/CSVHandler.h	Tue Jan 08 18:40:15 2019 +0100
@@ -0,0 +1,67 @@
+/**
+ * Relational pipes
+ * Copyright © 2018 František Kučera (Frantovo.cz, GlobalCode.info)
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include <memory>
+#include <string>
+#include <vector>
+#include <iostream>
+#include <sstream>
+#include <locale>
+#include <codecvt>
+
+#include <relpipe/reader/typedefs.h>
+#include <relpipe/reader/TypeId.h>
+#include <relpipe/reader/handlers/RelationalReaderStringHandler.h>
+#include <relpipe/reader/handlers/AttributeMetadata.h>
+
+namespace relpipe {
+namespace out {
+namespace csv {
+
+using namespace relpipe;
+using namespace relpipe::reader;
+using namespace relpipe::reader::handlers;
+
+class CSVHandler : public RelationalReaderStringHadler {
+private:
+	std::ostream& output;
+	std::wstring_convert<std::codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings.
+public:
+
+	CSVHandler(std::ostream& output) : output(output) {
+	}
+
+	void startRelation(string_t name, std::vector<AttributeMetadata> attributes) override {
+
+	}
+
+	void attribute(const string_t& value) override {
+		output << convertor.to_bytes(value).c_str();
+		output.put(0);
+	}
+
+	void endOfPipe() {
+		output.flush();
+	}
+
+};
+
+}
+}
+}