Rename maketext tool to make-keyboard-text

Change-Id: Icceda22aec75f9e3602da8775c0e94b110283575

6 files changed, 667 insertions, 0 deletions

diff --git a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/ArrayInitializerFormatter.java b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/ArrayInitializerFormatter.java
new file mode 100644
index 000000000..331003e67
--- /dev/null
+++ b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/ArrayInitializerFormatter.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.inputmethod.keyboard.tools;
+
+import java.io.PrintStream;
+
+public class ArrayInitializerFormatter {
+    private final PrintStream mOut;
+    private final int mMaxWidth;
+    private final String mIndent;
+
+    private int mCurrentIndex = 0;
+    private String mFixedElement;
+    private final StringBuilder mBuffer = new StringBuilder();
+    private int mBufferedLen;
+    private int mBufferedIndex = Integer.MIN_VALUE;
+
+    public ArrayInitializerFormatter(PrintStream out, int width, String indent) {
+        mOut = out;
+        mMaxWidth = width - indent.length();
+        mIndent = indent;
+    }
+
+    public void flush() {
+        if (mBuffer.length() == 0) {
+            return;
+        }
+        final int lastIndex = mCurrentIndex - 1;
+        if (mBufferedIndex == lastIndex) {
+            mOut.format("%s/* %d */ %s\n", mIndent, mBufferedIndex, mBuffer);
+        } else if (mBufferedIndex == lastIndex - 1) {
+            final String[] elements = mBuffer.toString().split(" ");
+            mOut.format("%s/* %d */ %s\n"
+                    + "%s/* %d */ %s\n",
+                    mIndent, mBufferedIndex, elements[0],
+                    mIndent, lastIndex, elements[1]);
+        } else {
+            mOut.format("%s/* %d~ */\n"
+                    + "%s%s\n"
+                    + "%s/* ~%d */\n", mIndent, mBufferedIndex,
+                    mIndent, mBuffer,
+                    mIndent, lastIndex);
+        }
+        mBuffer.setLength(0);
+        mBufferedLen = 0;
+    }
+
+    public void outCommentLines(String lines) {
+        flush();
+        mOut.print(lines);
+        mFixedElement = null;
+    }
+
+    public void outElement(String element) {
+        if (!element.equals(mFixedElement)) {
+            flush();
+            mBufferedIndex = mCurrentIndex;
+        }
+        final int nextLen = mBufferedLen + " ".length() + element.length();
+        if (mBufferedLen != 0 && nextLen < mMaxWidth) {
+            mBuffer.append(' ');
+            mBuffer.append(element);
+            mBufferedLen = nextLen;
+        } else {
+            if (mBufferedLen != 0) {
+                mBuffer.append('\n');
+                mBuffer.append(mIndent);
+            }
+            mBuffer.append(element);
+            mBufferedLen = element.length();
+        }
+        mCurrentIndex++;
+        mFixedElement = element;
+    }
+}
diff --git a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/JarUtils.java b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/JarUtils.java
new file mode 100644
index 000000000..a74096e79
--- /dev/null
+++ b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/JarUtils.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.inputmethod.keyboard.tools;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.net.URL;
+import java.net.URLDecoder;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+
+public final class JarUtils {
+    private JarUtils() {
+        // This utility class is not publicly instantiable.
+    }
+
+    public static JarFile getJarFile(final Class<?> mainClass) {
+        final String mainClassPath = "/" + mainClass.getName().replace('.', '/') + ".class";
+        final URL resUrl = mainClass.getResource(mainClassPath);
+        if (!resUrl.getProtocol().equals("jar")) {
+            throw new RuntimeException("Should run as jar");
+        }
+        final String path = resUrl.getPath();
+        if (!path.startsWith("file:")) {
+            throw new RuntimeException("Unknown jar path: " + path);
+        }
+        final String jarPath = path.substring("file:".length(), path.indexOf('!'));
+        try {
+            return new JarFile(URLDecoder.decode(jarPath, "UTF-8"));
+        } catch (UnsupportedEncodingException e) {
+        } catch (IOException e) {
+        }
+        return null;
+    }
+
+    public static InputStream openResource(final String name) {
+        return JarUtils.class.getResourceAsStream("/" + name);
+    }
+
+    public interface JarFilter {
+        public boolean accept(String dirName, String name);
+    }
+
+    public static ArrayList<String> getNameListing(final JarFile jar, final JarFilter filter) {
+        final ArrayList<String> result = new ArrayList<String>();
+        final Enumeration<JarEntry> entries = jar.entries();
+        while (entries.hasMoreElements()) {
+            final JarEntry entry = entries.nextElement();
+            final String path = entry.getName();
+            final int pos = path.lastIndexOf('/');
+            final String dirName = (pos >= 0) ? path.substring(0, pos) : "";
+            final String name = (pos >= 0) ? path.substring(pos + 1) : path;
+            if (filter.accept(dirName, name)) {
+                result.add(path);
+            }
+        }
+        return result;
+    }
+
+    public static ArrayList<String> getNameListing(final JarFile jar, final String filterName) {
+        return getNameListing(jar, new JarFilter() {
+            @Override
+            public boolean accept(final String dirName, final String name) {
+                return name.equals(filterName);
+            }
+        });
+    }
+}
diff --git a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MakeKeyboardText.java b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MakeKeyboardText.java
new file mode 100644
index 000000000..36a03f8dc
--- /dev/null
+++ b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MakeKeyboardText.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.inputmethod.keyboard.tools;
+
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.NoSuchElementException;
+import java.util.jar.JarFile;
+
+public class MakeKeyboardText {
+    static class Options {
+        private static final String OPTION_JAVA = "-java";
+
+        public final String mJava;
+
+        public static void usage(String message) {
+            if (message != null) {
+                System.err.println(message);
+            }
+            System.err.println("usage: make-keyboard-text " + OPTION_JAVA + " <java_output_dir>");
+            System.exit(1);
+        }
+
+        public Options(final String[] argsArray) {
+            final LinkedList<String> args = new LinkedList<String>(Arrays.asList(argsArray));
+            String arg = null;
+            String java = null;
+            try {
+                while (!args.isEmpty()) {
+                    arg = args.removeFirst();
+                    if (arg.equals(OPTION_JAVA)) {
+                        java = args.removeFirst();
+                    } else {
+                        usage("Unknown option: " + arg);
+                    }
+                }
+            } catch (NoSuchElementException e) {
+                usage("Option " + arg + " needs argument");
+            }
+
+            mJava = java;
+        }
+    }
+
+    public static void main(final String[] args) {
+        final Options options = new Options(args);
+        final JarFile jar = JarUtils.getJarFile(MakeKeyboardText.class);
+        final MoreKeysResources resources = new MoreKeysResources(jar);
+        resources.writeToJava(options.mJava);
+    }
+}
diff --git a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MoreKeysResources.java b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MoreKeysResources.java
new file mode 100644
index 000000000..2643e01ec
--- /dev/null
+++ b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/MoreKeysResources.java
@@ -0,0 +1,264 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.inputmethod.keyboard.tools;
+
+import java.io.Closeable;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.LineNumberReader;
+import java.io.PrintStream;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.jar.JarFile;
+
+public class MoreKeysResources {
+    private static final String TEXT_RESOURCE_NAME = "donottranslate-more-keys.xml";
+
+    private static final String JAVA_TEMPLATE = "KeyboardTextsSet.tmpl";
+    private static final String MARK_NAMES = "@NAMES@";
+    private static final String MARK_DEFAULT_TEXTS = "@DEFAULT_TEXTS@";
+    private static final String MARK_TEXTS = "@TEXTS@";
+    private static final String MARK_LANGUAGES_AND_TEXTS = "@LANGUAGES_AND_TEXTS@";
+    private static final String DEFAUT_LANGUAGE_NAME = "DEFAULT";
+    private static final String ARRAY_NAME_FOR_LANGUAGE = "LANGUAGE_%s";
+    private static final String EMPTY_STRING_VAR = "EMPTY";
+
+    private static final String NO_LANGUAGE_CODE = "zz";
+    private static final String NO_LANGUAGE_DISPLAY_NAME = "Alphabet";
+
+    private final JarFile mJar;
+    // Language to string resources map.
+    private final HashMap<String, StringResourceMap> mResourcesMap =
+            new HashMap<String, StringResourceMap>();
+    // Name to id map.
+    private final HashMap<String, Integer> mNameToIdMap = new HashMap<String,Integer>();
+
+    public MoreKeysResources(final JarFile jar) {
+        mJar = jar;
+        final ArrayList<String> resources = JarUtils.getNameListing(jar, TEXT_RESOURCE_NAME);
+        for (final String name : resources) {
+            final String dirName = name.substring(0, name.lastIndexOf('/'));
+            final int pos = dirName.lastIndexOf('/');
+            final String parentName = (pos >= 0) ? dirName.substring(pos + 1) : dirName;
+            final String language = getLanguageFromResDir(parentName);
+            final InputStream stream = JarUtils.openResource(name);
+            try {
+                mResourcesMap.put(language, new StringResourceMap(stream));
+            } finally {
+                close(stream);
+            }
+        }
+    }
+
+    private static String getLanguageFromResDir(final String dirName) {
+        final int languagePos = dirName.indexOf('-');
+        if (languagePos < 0) {
+            // Default resource.
+            return DEFAUT_LANGUAGE_NAME;
+        }
+        final String language = dirName.substring(languagePos + 1);
+        final int countryPos = language.indexOf("-r");
+        if (countryPos < 0) {
+            return language;
+        }
+        return language.replace("-r", "_");
+    }
+
+    public void writeToJava(final String outDir) {
+        final ArrayList<String> list = JarUtils.getNameListing(mJar, JAVA_TEMPLATE);
+        if (list.isEmpty())
+            throw new RuntimeException("Can't find java template " + JAVA_TEMPLATE);
+        if (list.size() > 1)
+            throw new RuntimeException("Found multiple java template " + JAVA_TEMPLATE);
+        final String template = list.get(0);
+        final String javaPackage = template.substring(0, template.lastIndexOf('/'));
+        PrintStream ps = null;
+        LineNumberReader lnr = null;
+        try {
+            if (outDir == null) {
+                ps = System.out;
+            } else {
+                final File outPackage = new File(outDir, javaPackage);
+                final File outputFile = new File(outPackage,
+                        JAVA_TEMPLATE.replace(".tmpl", ".java"));
+                outPackage.mkdirs();
+                ps = new PrintStream(outputFile, "UTF-8");
+            }
+            lnr = new LineNumberReader(new InputStreamReader(JarUtils.openResource(template)));
+            inflateTemplate(lnr, ps);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        } finally {
+            close(lnr);
+            close(ps);
+        }
+    }
+
+    private void inflateTemplate(final LineNumberReader in, final PrintStream out)
+            throws IOException {
+        String line;
+        while ((line = in.readLine()) != null) {
+            if (line.contains(MARK_NAMES)) {
+                dumpNames(out);
+            } else if (line.contains(MARK_DEFAULT_TEXTS)) {
+                dumpDefaultTexts(out);
+            } else if (line.contains(MARK_TEXTS)) {
+                dumpTexts(out);
+            } else if (line.contains(MARK_LANGUAGES_AND_TEXTS)) {
+                dumpLanguageMap(out);
+            } else {
+                out.println(line);
+            }
+        }
+    }
+
+    private void dumpNames(final PrintStream out) {
+        final StringResourceMap defaultResMap = mResourcesMap.get(DEFAUT_LANGUAGE_NAME);
+        int id = 0;
+        for (final StringResource res : defaultResMap.getResources()) {
+            out.format("        /* %2d */ \"%s\",\n", id, res.mName);
+            mNameToIdMap.put(res.mName, id);
+            id++;
+        }
+    }
+
+    private void dumpDefaultTexts(final PrintStream out) {
+        final StringResourceMap defaultResMap = mResourcesMap.get(DEFAUT_LANGUAGE_NAME);
+        dumpTextsInternal(out, defaultResMap, defaultResMap);
+    }
+
+    private void dumpTexts(final PrintStream out) {
+        final StringResourceMap defaultResMap = mResourcesMap.get(DEFAUT_LANGUAGE_NAME);
+        final ArrayList<String> allLanguages = new ArrayList<String>();
+        allLanguages.addAll(mResourcesMap.keySet());
+        Collections.sort(allLanguages);
+        for (final String language : allLanguages) {
+            if (language.equals(DEFAUT_LANGUAGE_NAME)) {
+                continue;
+            }
+            out.format("    /* Language %s: %s */\n", language, getLanguageDisplayName(language));
+            out.format("    private static final String[] " + ARRAY_NAME_FOR_LANGUAGE + " = {\n",
+                    language);
+            final StringResourceMap resMap = mResourcesMap.get(language);
+            for (final StringResource res : resMap.getResources()) {
+                if (!defaultResMap.contains(res.mName)) {
+                    throw new RuntimeException(res.mName + " in " + language
+                            + " doesn't have default resource");
+                }
+            }
+            dumpTextsInternal(out, resMap, defaultResMap);
+            out.format("    };\n\n");
+        }
+    }
+
+    private void dumpLanguageMap(final PrintStream out) {
+        final ArrayList<String> allLanguages = new ArrayList<String>();
+        allLanguages.addAll(mResourcesMap.keySet());
+        Collections.sort(allLanguages);
+        for (final String language : allLanguages) {
+            out.format("        \"%s\", " + ARRAY_NAME_FOR_LANGUAGE + ", /* %s */\n",
+                    language, language, getLanguageDisplayName(language));
+        }
+    }
+
+    private static String getLanguageDisplayName(final String language) {
+        if (language.equals(NO_LANGUAGE_CODE)) {
+            return NO_LANGUAGE_DISPLAY_NAME;
+        } else {
+            return new Locale(language).getDisplayLanguage();
+        }
+    }
+
+    private static void dumpTextsInternal(final PrintStream out, final StringResourceMap resMap,
+            final StringResourceMap defaultResMap) {
+        final ArrayInitializerFormatter formatter =
+                new ArrayInitializerFormatter(out, 100, "        ");
+        boolean successiveNull = false;
+        for (final StringResource defaultRes : defaultResMap.getResources()) {
+            if (resMap.contains(defaultRes.mName)) {
+                final StringResource res = resMap.get(defaultRes.mName);
+                if (res.mComment != null) {
+                    formatter.outCommentLines(addPrefix("        // ", res. mComment));
+                }
+                final String escaped = escapeNonAscii(res.mValue);
+                if (escaped.length() == 0) {
+                    formatter.outElement(EMPTY_STRING_VAR + ",");
+                } else {
+                    formatter.outElement(String.format("\"%s\",", escaped));
+                }
+                successiveNull = false;
+            } else {
+                formatter.outElement("null,");
+                successiveNull = true;
+            }
+        }
+        if (!successiveNull) {
+            formatter.flush();
+        }
+    }
+
+    private static String addPrefix(final String prefix, final String lines) {
+        final StringBuilder sb = new StringBuilder();
+        for (final String line : lines.split("\n")) {
+            sb.append(prefix + line.trim() + "\n");
+        }
+        return sb.toString();
+    }
+
+    private static String escapeNonAscii(final String text) {
+        final StringBuilder sb = new StringBuilder();
+        final int length = text.length();
+        for (int i = 0; i < length; i++) {
+            final char c = text.charAt(i);
+            if (c >= ' ' && c < 0x7f) {
+                sb.append(c);
+            } else {
+                sb.append(String.format("\\u%04X", (int)c));
+            }
+        }
+        return replaceIncompatibleEscape(sb.toString());
+    }
+
+    private static String replaceIncompatibleEscape(final String text) {
+        String t = text;
+        t = replaceAll(t, "\\?", "?");
+        t = replaceAll(t, "\\@", "@");
+        t = replaceAll(t, "@string/", "!text/");
+        return t;
+    }
+
+    private static String replaceAll(final String text, final String target, final String replace) {
+        String t = text;
+        while (t.indexOf(target) >= 0) {
+            t = t.replace(target, replace);
+        }
+        return t;
+    }
+
+    private static void close(Closeable stream) {
+        try {
+            if (stream != null) {
+                stream.close();
+            }
+        } catch (IOException e) {
+        }
+    }
+}
diff --git a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/StringResource.java b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/StringResource.java
new file mode 100644
index 000000000..a49b8fe70
--- /dev/null
+++ b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/StringResource.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.inputmethod.keyboard.tools;
+
+public class StringResource {
+    public final String mName;
+    public final String mValue;
+    public final String mComment;
+
+    public StringResource(final String name, final String value, final String comment) {
+        mName = name;
+        mValue = value;
+        mComment = comment;
+    }
+}
diff --git a/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/StringResourceMap.java b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/StringResourceMap.java
new file mode 100644
index 000000000..cc7ff6a9c
--- /dev/null
+++ b/tools/make-keyboard-text/src/com/android/inputmethod/keyboard/tools/StringResourceMap.java
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.inputmethod.keyboard.tools;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.SAXException;
+import org.xml.sax.SAXParseException;
+import org.xml.sax.ext.DefaultHandler2;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.parsers.SAXParser;
+import javax.xml.parsers.SAXParserFactory;
+
+public class StringResourceMap {
+    // String resource list.
+    private final List<StringResource> mResources;
+    // Name to string resource map.
+    private final Map<String, StringResource> mResourcesMap;
+
+    public StringResourceMap(final InputStream is) {
+        final StringResourceHandler handler = new StringResourceHandler();
+        final SAXParserFactory factory = SAXParserFactory.newInstance();
+        factory.setNamespaceAware(true);
+        try {
+            final SAXParser parser = factory.newSAXParser();
+            // In order to get comment tag.
+            parser.setProperty("http://xml.org/sax/properties/lexical-handler", handler);
+            parser.parse(is, handler);
+        } catch (ParserConfigurationException e) {
+        } catch (SAXParseException e) {
+            throw new RuntimeException(e.getMessage() + " at line " + e.getLineNumber()
+                    + ", column " + e.getColumnNumber());
+        } catch (SAXException e) {
+            throw new RuntimeException(e.getMessage());
+        } catch (IOException e) {
+        }
+
+        mResources = Collections.unmodifiableList(handler.mResources);
+        final HashMap<String,StringResource> map = new HashMap<String,StringResource>();
+        for (final StringResource res : mResources) {
+            map.put(res.mName, res);
+        }
+        mResourcesMap = map;
+    }
+
+    public List<StringResource> getResources() {
+        return mResources;
+    }
+
+    public boolean contains(final String name) {
+        return mResourcesMap.containsKey(name);
+    }
+
+    public StringResource get(final String name) {
+        return mResourcesMap.get(name);
+    }
+
+    static class StringResourceHandler extends DefaultHandler2 {
+        private static final String TAG_RESOURCES = "resources";
+        private static final String TAG_STRING = "string";
+        private static final String ATTR_NAME = "name";
+
+        final ArrayList<StringResource> mResources = new ArrayList<StringResource>();
+
+        private String mName;
+        private final StringBuilder mValue = new StringBuilder();
+        private final StringBuilder mComment = new StringBuilder();
+
+        private void init() {
+            mName = null;
+            mComment.setLength(0);
+        }
+
+        @Override
+        public void comment(char[] ch, int start, int length) {
+            mComment.append(ch, start, length);
+            if (ch[start + length - 1] != '\n') {
+                mComment.append('\n');
+            }
+        }
+
+        @Override
+        public void startElement(String uri, String localName, String qName, Attributes attr) {
+            if (TAG_RESOURCES.equals(localName)) {
+                init();
+            } else if (TAG_STRING.equals(localName)) {
+                mName = attr.getValue(ATTR_NAME);
+                mValue.setLength(0);
+            }
+        }
+
+        @Override
+        public void characters(char[] ch, int start, int length) {
+            mValue.append(ch, start, length);
+        }
+
+        @Override
+        public void endElement(String uri, String localName, String qName) throws SAXException {
+            if (TAG_STRING.equals(localName)) {
+                if (mName == null)
+                    throw new SAXException(TAG_STRING + " doesn't have name");
+                final String comment = mComment.length() > 0 ? mComment.toString() : null;
+                String value = mValue.toString();
+                if (value.startsWith("\"") && value.endsWith("\"")) {
+                    // Trim surroundings double quote.
+                    value = value.substring(1, value.length() - 1);
+                }
+                mResources.add(new StringResource(mName, value, comment));
+                init();
+            }
+        }
+    }
+}