diff -r 000000000000 -r 03e4aaa4ef3d htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/htmlpage/src/main/java/org/apidesign/bck2brwsr/htmlpage/PageProcessor.java	Mon Sep 24 15:06:43 2012 +0200
@@ -0,0 +1,113 @@
+/**
+ * Java 4 Browser Bytecode Translator
+ * Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * 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, version 2 of the License.
+ *
+ * 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. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.bck2brwsr.htmlpage;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.util.Locale;
+import java.util.Set;
+import javax.annotation.processing.AbstractProcessor;
+import javax.annotation.processing.Processor;
+import javax.annotation.processing.RoundEnvironment;
+import javax.annotation.processing.SupportedAnnotationTypes;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.PackageElement;
+import javax.lang.model.element.TypeElement;
+import javax.tools.Diagnostic;
+import javax.tools.FileObject;
+import javax.tools.StandardLocation;
+import org.apidesign.bck2brwsr.htmlpage.api.Page;
+import org.openide.util.lookup.ServiceProvider;
+
+/** Annotation processor to process an XHTML page and generate appropriate 
+ * "id" file.
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+@ServiceProvider(service=Processor.class)
+@SupportedAnnotationTypes("org.apidesign.bck2brwsr.htmlpage.api.Page")
+public final class PageProcessor extends AbstractProcessor {
+    @Override
+    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+        for (Element e : roundEnv.getElementsAnnotatedWith(Page.class)) {
+            Page p = e.getAnnotation(Page.class);
+            PackageElement pe = (PackageElement)e;
+            String pkg = pe.getQualifiedName().toString();
+            
+            ProcessPage pp;
+            try {
+                InputStream is = openStream(pkg, p.xhtml());
+                pp = ProcessPage.readPage(is);
+                is.close();
+            } catch (IOException iOException) {
+                processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "Can't read " + p.xhtml(), e);
+                return false;
+            }
+            Writer w;
+            try {
+                FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + p.name(), e);
+                w = new OutputStreamWriter(java.openOutputStream());
+                w.append("package " + pkg + ";\n");
+                w.append("import org.apidesign.bck2brwsr.htmlpage.api.*;\n");
+                w.append("class ").append(p.name()).append(" {\n");
+                for (String id : pp.ids()) {
+                    String tag = pp.tagNameForId(id);
+                    String type = type(tag);
+                    w.append("  ").append("public static final ").
+                        append(type).append(' ').append(cnstnt(id)).append(" = new ").
+                        append(type).append("(\"").append(id).append("\");\n");
+                }
+                w.append("}");
+                w.close();
+            } catch (IOException ex) {
+                processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "Can't create " + p.name() + ".java", e);
+                return false;
+            }
+        }
+        return true;
+    }
+
+    private InputStream openStream(String pkg, String name) throws IOException {
+        FileObject fo = processingEnv.getFiler().getResource(
+            StandardLocation.SOURCE_PATH, pkg, name);
+        try {
+            return fo.openInputStream();
+        } catch (IOException ex) {
+            return processingEnv.getFiler().getResource(StandardLocation.CLASS_OUTPUT, pkg, name).openInputStream();
+        }
+    }
+
+    private static String type(String tag) {
+        if (tag.equals("title")) {
+            return "Title";
+        }
+        if (tag.equals("button")) {
+            return "Button";
+        }
+        if (tag.equals("input")) {
+            return "Input";
+        }
+        return "Element";
+    }
+
+    private static String cnstnt(String id) {
+        return id.toUpperCase(Locale.ENGLISH).replace('.', '_');
+    }
+}