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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 ANDROIDFW_LOCALE_VALUE_H
#define ANDROIDFW_LOCALE_VALUE_H
#include <string>
#include <vector>
#include "androidfw/ResourceTypes.h"
#include "androidfw/StringPiece.h"
namespace android {
/**
* 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 android::StringPiece& config);
// Initializes this LocaleValue from a BCP-47 locale tag.
bool InitFromBcp47Tag(const android::StringPiece& bcp47tag);
/**
* 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;
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:
bool InitFromBcp47TagImpl(const android::StringPiece& bcp47tag, const char separator);
void set_language(const char* language);
void set_region(const char* language);
void set_script(const char* script);
void set_variant(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 android
#endif // ANDROIDFW_LOCALE_VALUE_H