diff -r 3876a9c56a66 -r f031a4dc7c52 src/INICommand.cpp
--- a/src/INICommand.cpp	Sat Nov 21 20:09:18 2020 +0100
+++ b/src/INICommand.cpp	Sun Nov 22 00:44:00 2020 +0100
@@ -66,10 +66,13 @@
 
 	void startDocument() override {
 		vector<AttributeMetadata> metadata;
-		metadata.push_back({L"section", TypeId::STRING});
+		if (configuration.enableLineNumbers) metadata.push_back({L"line", TypeId::INTEGER});
+		if (configuration.enableEventNumbers) metadata.push_back({L"event", TypeId::INTEGER});
+		if (configuration.enableSections) metadata.push_back({L"section", TypeId::STRING});
 		metadata.push_back({L"key", TypeId::STRING});
-		metadata.push_back({L"subkey", TypeId::STRING});
+		if (configuration.enableSubkeys) metadata.push_back({L"subkey", TypeId::STRING});
 		metadata.push_back({L"value", TypeId::STRING});
+		if (configuration.enableComments) metadata.push_back({L"comment", TypeId::STRING});
 		writer->startRelation(configuration.relation, metadata, true);
 	};
 
@@ -77,23 +80,31 @@
 		currentSection.clear();
 	};
 
-	void startSection(const std::string& name) override {
-		currentSection.push_back(name);
+	void startSection(const SectionStartEvent& event) override {
+		currentSection.push_back(event.name);
 	};
 
 	void endSection() override {
 		currentSection.pop_back();
 	};
 
-	void entry(const std::string& key, const std::string& subkey, const std::string& value) override {
-		writer->writeAttribute(convertor.from_bytes(getCurrentSectionFullName()));
+	void entry(const EntryEvent& event) override {
+		if (configuration.enableLineNumbers) writer->writeAttribute(&event.lineNumber, typeid (event.lineNumber));
+		if (configuration.enableEventNumbers) writer->writeAttribute(&event.eventNumber, typeid (event.eventNumber));
+
+		std::string section = getCurrentSectionFullName();
+		std::string key = configuration.enableSubkeys ? event.key : event.fullKey;
+
+		if (configuration.enableSections) writer->writeAttribute(convertor.from_bytes(section));
+		else if (section.size()) key = section + "/" + key;
 		writer->writeAttribute(convertor.from_bytes(key));
-		writer->writeAttribute(convertor.from_bytes(subkey));
-		writer->writeAttribute(convertor.from_bytes(value));
+		if (configuration.enableSubkeys) writer->writeAttribute(convertor.from_bytes(event.subKey));
+
+		writer->writeAttribute(convertor.from_bytes(event.value));
+		if (configuration.enableComments) writer->writeAttribute(convertor.from_bytes(event.comment));
 	};
 
 	// TODO: handle also comments and whitespace (to allow lossless transformation from INI and back to INI)
-	// TODO: make subkeys (in [] brackets in the key) optional/configurable
 
 };