--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/relpipe-in-fstab.cpp	Sat Aug 11 22:56:41 2018 +0200
@@ -0,0 +1,92 @@
+#include <cstdlib>
+#include <fstream>
+#include <memory>
+#include <regex>
+#include <algorithm>
+#include <unistd.h>
+
+#include <RelationalWriter.h>
+#include <RelpipeWriterException.h>
+#include <Factory.h>
+#include <TypeId.h>
+
+#include "CLI.h"
+
+using namespace relpipe::cli;
+using namespace relpipe::writer;
+
+void processDataStream(ostream &output, istream* input) {
+	wregex devicePattern = wregex(L"(LABEL|UUID)=(.*)");
+	wregex linePattern = wregex(L"^([^\\s#]+)\\s+([^\\s]+)\\s+([^\\s]+)\\s+([^\\s]+)\\s+(\\d+)\\s+(\\d+)\\s*$");
+	wstring_convert < codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings.
+
+	std::shared_ptr<RelationalWriter> writer(Factory::create(output));
+
+	writer->startRelation(L"fstab",{
+		{L"scheme", TypeId::STRING},
+		{L"device", TypeId::STRING},
+		{L"mount_point", TypeId::STRING},
+		{L"type", TypeId::STRING},
+		// {L"types", TypeId::STRING}, // TODO: array
+		{L"options", TypeId::STRING}, // TODO: array
+		{L"dump", TypeId::INTEGER},
+		{L"pass", TypeId::INTEGER}
+	}, true);
+
+	string lineBytes;
+	while (getline(*input, lineBytes)) {
+
+		wstring line = convertor.from_bytes(lineBytes);
+		wsmatch lineMatch;
+		if (regex_search(line, lineMatch, linePattern) && lineMatch.size() > 0) {
+			int g = 1;
+			wstring device = lineMatch[g++];
+			wstring mountPoint = lineMatch[g++];
+			wstring type = lineMatch[g++];
+			wstring options = lineMatch[g++];
+			wstring dump = lineMatch[g++];
+			wstring pass = lineMatch[g++];
+
+			wsmatch deviceMatch;
+			if (regex_search(device, deviceMatch, devicePattern)) {
+				writer->writeAttribute(deviceMatch[1]);
+				writer->writeAttribute(deviceMatch[2]);
+			} else {
+				writer->writeAttribute(L""); // TODO: null (requires bitmap)
+				writer->writeAttribute(device);
+			}
+
+			if (mountPoint == L"none") mountPoint = L""; // TODO: null (requires bitmap)
+			writer->writeAttribute(mountPoint);
+			writer->writeAttribute(type);
+			writer->writeAttribute(options);
+			writer->writeAttribute(dump);
+			writer->writeAttribute(pass);
+		}
+	}
+
+}
+
+int main(int argc, char** argv) {
+	setlocale(LC_ALL, "");
+	//CLI cli(argc, argv);
+
+	int resultCode = CLI::EXIT_CODE_UNEXPECTED_ERROR;
+
+	try {
+		if (isatty(fileno(stdin))) {
+			ifstream s("/etc/fstab");
+			processDataStream(cout, &s);
+		} else {
+			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;
+}