diff -r 471c0cda94c3 -r b890783e4043 java/alt2xml-lib/src/cz/frantovo/alt2xml/Alt2XmlRegexReaderFactory.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/alt2xml-lib/src/cz/frantovo/alt2xml/Alt2XmlRegexReaderFactory.java	Sat Jun 07 10:38:31 2014 +0200
@@ -0,0 +1,36 @@
+/**
+ * Alt2XML
+ * Copyright © 2014 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 cz.frantovo.alt2xml;
+
+import java.util.regex.Pattern;
+
+/**
+ * Factory for XMLReaders that can read documents with systemId defined by given pattern (typically
+ * file extension like .ini, .properties etc.)
+ *
+ * @author Ing. František Kučera (frantovo.cz)
+ */
+public abstract class Alt2XmlRegexReaderFactory implements Alt2XmlReaderFactory {
+
+	protected abstract Pattern getSystemIdPattern();
+
+	@Override
+	public boolean canRead(String systemId) {
+		return getSystemIdPattern().matcher(systemId).matches();
+	}
+}