diff --git a/tools/droiddoc/src/Proofread.java b/tools/droiddoc/src/Proofread.java
new file mode 100644
index 0000000..ec9f523
--- /dev/null
+++ b/tools/droiddoc/src/Proofread.java
@@ -0,0 +1,178 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.IOException;
+import java.io.FileWriter;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+
+public class Proofread
+{
+    static FileWriter out = null;
+    static final Pattern WHITESPACE = Pattern.compile("\\r?\\n");
+    static final String INDENT = "        ";
+    static final String NEWLINE = "\n" + INDENT;
+
+    public static void initProofread(String filename)
+    {
+        try {
+            out = new FileWriter(filename);
+            out.write("javadoc proofread file: " + filename + "\n");
+        }
+        catch (IOException e) {
+            if (out != null) {
+                try {
+                    out.close();
+                }
+                catch (IOException ex) {
+                }
+                out = null;
+            }
+            System.err.println("error opening file: " + filename);
+        }
+    }
+
+    public static void finishProofread(String filename)
+    {
+        if (out == null) {
+            return;
+        }
+
+        try {
+            out.close();
+        }
+        catch (IOException e) {
+        }
+    }
+
+    public static void write(String s)
+    {
+        if (out == null) {
+            return ;
+        }
+        try {
+            out.write(s);
+        }
+        catch (IOException e) {
+        }
+    }
+
+    public static void writeIndented(String s)
+    {
+        s = s.trim();
+        Matcher m = WHITESPACE.matcher(s);
+        s = m.replaceAll(NEWLINE);
+        write(INDENT);
+        write(s);
+        write("\n");
+    }
+
+    public static void writeFileHeader(String filename)
+    {
+        write("\n\n=== ");
+        write(filename);
+        write(" ===\n");
+    }
+
+    public static void writeTagList(TagInfo[] tags)
+    {
+        if (out == null) {
+            return;
+        }
+
+        for (TagInfo t: tags) {
+            String k = t.kind();
+            if ("Text".equals(t.name())) {
+                writeIndented(t.text());
+            }
+            else if ("@more".equals(k)) {
+                writeIndented("");
+            }
+            else if ("@see".equals(k)) {
+                SeeTagInfo see = (SeeTagInfo)t;
+                String label = see.label();
+                if (label == null) {
+                    label = "";
+                }
+                writeIndented("{" + see.name() + " ... " + label + "}");
+            }
+            else if ("@code".equals(k)) {
+                writeIndented(t.text());
+            }
+            else if ("@samplecode".equals(k)) {
+                writeIndented(t.text());
+            }
+            else {
+                writeIndented("{" + (t.name() != null ? t.name() : "") + "/" +
+                        t.text() + "}");
+            }
+        }
+    }
+
+    public static void writePackages(String filename, TagInfo[] tags)
+    {
+        if (out == null) {
+            return;
+        }
+
+        writeFileHeader(filename);
+        writeTagList(tags);
+    }
+
+    public static void writePackage(String filename, TagInfo[] tags)
+    {
+        if (out == null) {
+            return;
+        }
+
+        writeFileHeader(filename);
+        writeTagList(tags);
+    }
+
+    public static void writeClass(String filename, ClassInfo cl)
+    {
+        if (out == null) {
+            return;
+        }
+
+        writeFileHeader(filename);
+        writeTagList(cl.inlineTags());
+
+        // enum constants
+        for (FieldInfo f: cl.enumConstants()) {
+            write("ENUM: " + f.name() + "\n");
+            writeTagList(f.inlineTags());
+        }
+
+        // fields
+        for (FieldInfo f: cl.selfFields()) {
+            write("FIELD: " + f.name() + "\n");
+            writeTagList(f.inlineTags());
+        }
+
+        // constructors
+        for (MethodInfo m: cl.constructors()) {
+            write("CONSTRUCTOR: " + m.name() + "\n");
+            writeTagList(m.inlineTags().tags());
+        }
+
+        // methods
+        for (MethodInfo m: cl.selfMethods()) {
+            write("METHOD: " + m.name() + "\n");
+            writeTagList(m.inlineTags().tags());
+        }
+    }
+}