diff -r 000000000000 -r 2f3c9e508827 src/OdsHandler.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/OdsHandler.h	Fri Dec 07 12:49:39 2018 +0100
@@ -0,0 +1,139 @@
+/**
+ * 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 <string>
+#include <vector>
+#include <iostream>
+#include <sstream>
+#include <locale>
+#include <codecvt>
+#include <regex>
+
+#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 ods {
+
+using namespace relpipe::reader;
+
+class OdsHandler : public handlers::RelationalReaderStringHadler {
+private:
+	std::wstring_convert<std::codecvt_utf8<wchar_t>> convertor; // XML output will be always in UTF-8
+	const char* INDENT = "\t";
+
+	std::ostream &output;
+
+	std::vector<TypeId> columnTypes;
+	std::vector<string_t> columnTypeCodes;
+	std::vector<string_t> columnNames;
+	integer_t valueCount = 0;
+	integer_t columnCount = 0;
+	integer_t relationCount = 0;
+
+	const std::string escapeXmlText(const string_t &value) {
+		std::wstringstream result;
+
+		for (auto & ch : value) {
+			switch (ch) {
+				case L'&': result << L"&amp;";
+					break;
+				case L'<': result << L"&lt;";
+					break;
+				case L'>': result << L"&gt;";
+					break;
+				case L'\'': result << L"&apos;"; // TODO: escape ' and " only in attributes
+					break;
+				case L'"': result << L"&quot;"; // TODO: escape ' and " only in attributes
+					break;
+				default: result << ch;
+			}
+		}
+
+		return convertor.to_bytes(result.str());
+	}
+
+public:
+
+	OdsHandler(std::ostream& output) : output(output) {
+	}
+
+	void startRelation(string_t name, std::vector<handlers::AttributeMetadata> attributes) override {
+		// TODO: refactor and move common XML functions to relpipe-lib-xml
+
+		valueCount = 0;
+		columnCount = 0;
+
+		if (relationCount == 0) {
+			output << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << std::endl;
+			output << "<pipe TODO=\"ods\">" << std::endl;
+			// TODO: xmlns
+		} else {
+			output << INDENT << INDENT << "</record>" << std::endl;
+			output << INDENT << "</relation>" << std::endl;
+		}
+		relationCount++;
+		output << INDENT << "<relation>" << std::endl;
+
+		output << INDENT << INDENT << "<name>" << escapeXmlText(name) << "</name>" << std::endl;
+
+
+		columnCount = attributes.size();
+		columnTypes.resize(columnCount);
+		columnTypeCodes.resize(columnCount);
+		columnNames.resize(columnCount);
+		for (int i = 0; i < attributes.size(); i++) {
+			columnNames[i] = attributes[i].getAttributeName();
+			columnTypes[i] = attributes[i].getTypeId();
+			columnTypeCodes[i] = attributes[i].getTypeName();
+		}
+		
+		// TODO: print attribute metadata
+	}
+
+	void attribute(const string_t& value) override {
+		integer_t i = valueCount % columnCount;
+
+		if (i == 0 && valueCount) output << INDENT << INDENT << "</record>" << std::endl;
+		if (i == 0) output << INDENT << INDENT << "<record>" << std::endl;
+
+		valueCount++;
+
+		// TODO: print attribute metadata (optional)
+		output << INDENT << INDENT << INDENT << "<attribute>";
+		output << escapeXmlText(value);
+		output << "</attribute>" << std::endl;
+
+	}
+
+	void endOfPipe() {
+		if (valueCount) output << INDENT << INDENT << "</record>" << std::endl;
+		if (relationCount) output << INDENT << "</relation>" << std::endl;
+		output << "</pipe>" << std::endl;
+
+	}
+
+};
+
+}
+}
+}