diff -r 000000000000 -r eca0b23802e8 src/relpipe-in-csv.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/relpipe-in-csv.cpp	Wed Jan 09 17:23:02 2019 +0100
@@ -0,0 +1,63 @@
+/**
+ * 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/>.
+ */
+#include <cstdlib>
+#include <fstream>
+#include <memory>
+#include <regex>
+#include <algorithm>
+#include <unistd.h>
+
+#include <relpipe/writer/RelationalWriter.h>
+#include <relpipe/writer/RelpipeWriterException.h>
+#include <relpipe/writer/Factory.h>
+#include <relpipe/writer/TypeId.h>
+
+#include <relpipe/cli/CLI.h>
+
+using namespace std;
+using namespace relpipe::cli;
+using namespace relpipe::writer;
+
+/**
+ * see https://hg.frantovo.cz/sql-api/file/tip/prototyp/prototyp.sql#l49
+ */
+void processDataStream(ostream &output, istream* input) {
+
+	for (char ch; input->get(ch);) {
+		output << "ch: " << ch << endl;
+	}
+}
+
+int main(int argc, char** argv) {
+	setlocale(LC_ALL, "");
+	CLI::untieStdIO();
+	CLI cli(argc, argv);
+
+	int resultCode = CLI::EXIT_CODE_UNEXPECTED_ERROR;
+
+	try {
+		processDataStream(cout, &cin);
+		resultCode = CLI::EXIT_CODE_SUCCESS;
+	} catch (RelpipeWriterException e) {
+		fwprintf(stderr, L"Caught Writer exception: %ls\n", e.getMessge().c_str());
+		fwprintf(stderr, L"Debug: Input stream: eof=%ls, lastRead=%d\n", (cin.eof() ? L"true" : L"false"), cin.gcount());
+		resultCode = CLI::EXIT_CODE_DATA_ERROR;
+	}
+
+	return resultCode;
+}