--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/INICommand.cpp	Sat Nov 21 18:26:39 2020 +0100
@@ -0,0 +1,108 @@
+/**
+ * Relational pipes
+ * Copyright © 2020 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, version 3 of the License.
+ *
+ * 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 <vector>
+#include <sstream>
+#include <memory>
+
+#include <relpipe/writer/RelationalWriter.h>
+#include <relpipe/writer/RelpipeWriterException.h>
+#include <relpipe/writer/AttributeMetadata.h>
+#include <relpipe/writer/TypeId.h>
+
+#include <relpipe/cli/CLI.h>
+
+#include "INICommand.h"
+#include "lib/INIReader.h"
+
+using namespace std;
+using namespace relpipe::writer;
+
+namespace relpipe {
+namespace in {
+namespace ini {
+
+class FlatINIContentHandler : public INIContentHandler {
+private:
+	wstring_convert < codecvt_utf8<wchar_t>> convertor; // INI parser works with UTF-8
+	std::shared_ptr<writer::RelationalWriter> writer;
+	Configuration& configuration;
+	std::vector<std::string> currentSection;
+
+	std::string getCurrentSectionFullName() {
+		std::stringstream result;
+
+		// TODO: configurable hierarchy delimiter
+		// TODO: escape delimiter characters that are part of the section names
+		for (int i = 0; i < currentSection.size(); i++) {
+			if (i > 0)result << "/";
+			result << currentSection[i];
+		}
+
+		return result.str();
+	}
+
+public:
+
+	FlatINIContentHandler(std::shared_ptr<writer::RelationalWriter> writer, Configuration& configuration) : writer(writer), configuration(configuration) {
+	}
+
+	virtual ~FlatINIContentHandler() {
+	}
+
+	void startDocument() override {
+		vector<AttributeMetadata> metadata;
+		metadata.push_back({L"section", TypeId::STRING});
+		metadata.push_back({L"key", TypeId::STRING});
+		metadata.push_back({L"value", TypeId::STRING});
+		writer->startRelation(configuration.relation, metadata, true);
+	};
+
+	void endDocument() override {
+		currentSection.clear();
+	};
+
+	void startSection(const std::string& name) override {
+		currentSection.push_back(name);
+	};
+
+	void endSection() override {
+		currentSection.pop_back();
+	};
+
+	void entry(const std::string& key, const std::string& value) override {
+		writer->writeAttribute(convertor.from_bytes(getCurrentSectionFullName()));
+		writer->writeAttribute(convertor.from_bytes(key));
+		writer->writeAttribute(convertor.from_bytes(value));
+	};
+
+	// TODO: handle also comments and whitespace (to allow lossless transformation from INI and back to INI)
+	// TODO: handle also subkeys (in [] brackets in the key)
+
+};
+
+void INICommand::process(std::istream& input, std::shared_ptr<writer::RelationalWriter> writer, Configuration& configuration) {
+	FlatINIContentHandler handler(writer, configuration);
+	std::shared_ptr<INIReader> reader(INIReader::create(input));
+	reader->addHandler(&handler);
+	reader->process();
+
+}
+
+}
+}
+}