Index: trunk/scripts/TaggingPresetSchemeWikiGenerator.java
===================================================================
--- trunk/scripts/TaggingPresetSchemeWikiGenerator.java	(revision 16640)
+++ trunk/scripts/TaggingPresetSchemeWikiGenerator.java	(revision 16640)
@@ -0,0 +1,84 @@
+// License: GPL. For details, see LICENSE file.
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Iterator;
+import java.util.stream.IntStream;
+
+import javax.xml.XMLConstants;
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.xpath.XPath;
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPathExpressionException;
+import javax.xml.xpath.XPathFactory;
+
+import org.openstreetmap.josm.data.preferences.JosmUrls;
+import org.openstreetmap.josm.gui.tagging.presets.TaggingPresetReader;
+import org.openstreetmap.josm.io.CachedFile;
+import org.openstreetmap.josm.spi.preferences.Config;
+import org.openstreetmap.josm.tools.XmlUtils;
+import org.w3c.dom.Document;
+import org.w3c.dom.NodeList;
+import org.xml.sax.SAXException;
+
+/**
+ * This script generates the wiki content for https://josm.openstreetmap.de/wiki/TaggingPresets#Attributes
+ */
+public class TaggingPresetSchemeWikiGenerator {
+
+    private static Document document;
+    private static XPath xPath;
+
+    public static void main(String[] args) throws Exception {
+        document = parseTaggingPresetSchema();
+        xPath = XPathFactory.newInstance().newXPath();
+        xPath.setNamespaceContext(new TaggingNamespaceContext());
+        printAttributes();
+    }
+
+    private static Document parseTaggingPresetSchema() throws IOException, ParserConfigurationException, SAXException {
+        Config.setUrlsProvider(JosmUrls.getInstance());
+        Document document;
+        try (CachedFile file = new CachedFile(TaggingPresetReader.SCHEMA_SOURCE);
+             InputStream in = file.getInputStream()) {
+            document = XmlUtils.parseSafeDOM(in);
+        }
+        return document;
+    }
+
+    private static void printAttributes() throws XPathExpressionException {
+        NodeList attributes = (NodeList) xPath.compile("/xs:schema/xs:attributeGroup/xs:attribute").evaluate(document, XPathConstants.NODESET);
+        System.out.println("=== Attributes ===");
+        System.out.println("The attributes of the tags have the following meaning:");
+        IntStream.range(0, attributes.getLength())
+                .mapToObj(attributes::item)
+                .forEach(node -> System.out.format(" `%s` (type: %s)%n  %s%n",
+                        node.getAttributes().getNamedItem("name").getTextContent(),
+                        node.getAttributes().getNamedItem("type").getTextContent(),
+                        node.getTextContent().trim()));
+    }
+
+    private static class TaggingNamespaceContext implements NamespaceContext {
+        @Override
+        public String getNamespaceURI(String prefix) {
+            switch (prefix) {
+                case "tns":
+                    return TaggingPresetReader.NAMESPACE;
+                case "xs":
+                    return "http://www.w3.org/2001/XMLSchema";
+                default:
+                    return XMLConstants.NULL_NS_URI;
+            }
+        }
+
+        @Override
+        public String getPrefix(String namespaceURI) {
+            throw new UnsupportedOperationException();
+        }
+
+        @Override
+        public Iterator<String> getPrefixes(String namespaceURI) {
+            throw new UnsupportedOperationException();
+        }
+    }
+}