--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/sql-dk/src/main/java/info/globalcode/sql/dk/formatting/RecfileFormatter.java	Tue Apr 30 19:49:17 2019 +0200
@@ -0,0 +1,110 @@
+/**
+ * SQL-DK
+ * Copyright © 2015 František Kučera (frantovo.cz)
+ *
+ * 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/>.
+ */
+package info.globalcode.sql.dk.formatting;
+
+import info.globalcode.sql.dk.ColorfulPrintWriter;
+import info.globalcode.sql.dk.configuration.PropertyDeclaration;
+import static info.globalcode.sql.dk.formatting.CommonProperties.COLORFUL;
+import static info.globalcode.sql.dk.formatting.CommonProperties.COLORFUL_DESCRIPTION;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Prints results in the recfile format. This format is both human- and machine- readable. Can be
+ * processed by the <a href="https://www.gnu.org/software/recutils/">GNU Recutils</a>
+ * or <a href="https://relational-pipes.globalcode.info/">Relational pipes</a>.
+ *
+ * @author Ing. František Kučera (frantovo.cz)
+ */
+@PropertyDeclaration(name = COLORFUL, defaultValue = "false", type = Boolean.class, description = COLORFUL_DESCRIPTION)
+public class RecfileFormatter extends AbstractFormatter {
+
+	private static final Logger log = Logger.getLogger(RecfileFormatter.class.getName());
+	public static final String NAME = "recfile"; // bash-completion:formatter
+	private final ColorfulPrintWriter out;
+	private boolean firstResult = true;
+
+	public RecfileFormatter(FormatterContext formatterContext) {
+		super(formatterContext);
+		out = new ColorfulPrintWriter(formatterContext.getOutputStream());
+		out.setColorful(formatterContext.getProperties().getBoolean(COLORFUL, false));
+	}
+
+	@Override
+	public void writeStartResultSet(ColumnsHeader header) {
+		super.writeStartResultSet(header);
+		printResultSeparator();
+		out.print(ColorfulPrintWriter.TerminalColor.Red, "%rec: ");
+		printRecfileValue(getCurrentRelationName());
+		// TODO: declare attribute data types where jdbc→recfile mapping is possible
+	}
+
+	@Override
+	public void writeStartRow() {
+		super.writeStartRow();
+		println();
+	}
+
+	@Override
+	public void writeColumnValue(Object value) {
+		super.writeColumnValue(value);
+		String columnName = getCurrentColumnsHeader().getColumnDescriptors().get(getCurrentColumnsCount() - 1).getLabel();
+		out.print(ColorfulPrintWriter.TerminalColor.Green, columnName + ": ");
+		printRecfileValue(value);
+	}
+
+	@Override
+	public void writeUpdatesResult(int updatedRowsCount) {
+		super.writeUpdatesResult(updatedRowsCount);
+		printResultSeparator();
+		log.log(Level.INFO, "Updated records: {0}", updatedRowsCount);
+	}
+
+	@Override
+	public void writeEndBatch() {
+		super.writeEndBatch();
+		println();
+	}
+
+	private void println() {
+		out.println();
+		out.flush();
+	}
+
+	private void printRecfileValue(Object value) {
+		if (value == null) {
+			// TODO: null values in recfiles?
+		} else {
+			for (char ch : value.toString().toCharArray()) {
+				out.print(ch);
+				if (ch == '\n') {
+					out.print(ColorfulPrintWriter.TerminalColor.Magenta, "+ ");
+				}
+			}
+		}
+		println();
+	}
+
+	private void printResultSeparator() {
+		if (firstResult) {
+			firstResult = false;
+		} else {
+			println();
+		}
+	}
+}