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diff --git a/tools/aapt2/Locale.h b/tools/aapt2/Locale.h
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+/*
+ * Copyright (C) 2015 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.
+ */
+
+#ifndef AAPT_LOCALE_VALUE_H
+#define AAPT_LOCALE_VALUE_H
+
+#include <androidfw/ResourceTypes.h>
+#include <string>
+#include <vector>
+
+namespace aapt {
+
+/**
+ * A convenience class to build and parse locales.
+ */
+struct LocaleValue {
+    char language[4];
+    char region[4];
+    char script[4];
+    char variant[8];
+
+    inline LocaleValue();
+
+    /**
+     * Initialize this LocaleValue from a config string.
+     */
+    bool initFromFilterString(const std::string& config);
+
+    /**
+     * Initialize this LocaleValue from parts of a vector.
+     */
+    ssize_t initFromParts(std::vector<std::string>::iterator iter,
+            std::vector<std::string>::iterator end);
+
+    /**
+     * Initialize this LocaleValue from a ResTable_config.
+     */
+    void initFromResTable(const android::ResTable_config& config);
+
+    /**
+     * Set the locale in a ResTable_config from this LocaleValue.
+     */
+    void writeTo(android::ResTable_config* out) const;
+
+    std::string toDirName() const;
+
+    inline int compare(const LocaleValue& other) const;
+
+    inline bool operator<(const LocaleValue& o) const;
+    inline bool operator<=(const LocaleValue& o) const;
+    inline bool operator==(const LocaleValue& o) const;
+    inline bool operator!=(const LocaleValue& o) const;
+    inline bool operator>=(const LocaleValue& o) const;
+    inline bool operator>(const LocaleValue& o) const;
+
+private:
+     void setLanguage(const char* language);
+     void setRegion(const char* language);
+     void setScript(const char* script);
+     void setVariant(const char* variant);
+};
+
+//
+// Implementation
+//
+
+LocaleValue::LocaleValue() {
+    memset(this, 0, sizeof(LocaleValue));
+}
+
+int LocaleValue::compare(const LocaleValue& other) const {
+    return memcmp(this, &other, sizeof(LocaleValue));
+}
+
+bool LocaleValue::operator<(const LocaleValue& o) const {
+    return compare(o) < 0;
+}
+
+bool LocaleValue::operator<=(const LocaleValue& o) const {
+    return compare(o) <= 0;
+}
+
+bool LocaleValue::operator==(const LocaleValue& o) const {
+    return compare(o) == 0;
+}
+
+bool LocaleValue::operator!=(const LocaleValue& o) const {
+    return compare(o) != 0;
+}
+
+bool LocaleValue::operator>=(const LocaleValue& o) const {
+    return compare(o) >= 0;
+}
+
+bool LocaleValue::operator>(const LocaleValue& o) const {
+    return compare(o) > 0;
+}
+
+} // namespace aapt
+
+#endif // AAPT_LOCALE_VALUE_H