1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef AAPT_LOCALE_VALUE_H 18 #define AAPT_LOCALE_VALUE_H 19 20 #include <string> 21 #include <vector> 22 23 #include "androidfw/ResourceTypes.h" 24 #include "androidfw/StringPiece.h" 25 26 namespace aapt { 27 28 /** 29 * A convenience class to build and parse locales. 30 */ 31 struct LocaleValue { 32 char language[4]; 33 char region[4]; 34 char script[4]; 35 char variant[8]; 36 37 inline LocaleValue(); 38 39 /** 40 * Initialize this LocaleValue from a config string. 41 */ 42 bool InitFromFilterString(const android::StringPiece& config); 43 44 /** 45 * Initialize this LocaleValue from parts of a vector. 46 */ 47 ssize_t InitFromParts(std::vector<std::string>::iterator iter, 48 std::vector<std::string>::iterator end); 49 50 /** 51 * Initialize this LocaleValue from a ResTable_config. 52 */ 53 void InitFromResTable(const android::ResTable_config& config); 54 55 /** 56 * Set the locale in a ResTable_config from this LocaleValue. 57 */ 58 void WriteTo(android::ResTable_config* out) const; 59 60 inline int compare(const LocaleValue& other) const; 61 62 inline bool operator<(const LocaleValue& o) const; 63 inline bool operator<=(const LocaleValue& o) const; 64 inline bool operator==(const LocaleValue& o) const; 65 inline bool operator!=(const LocaleValue& o) const; 66 inline bool operator>=(const LocaleValue& o) const; 67 inline bool operator>(const LocaleValue& o) const; 68 69 private: 70 void set_language(const char* language); 71 void set_region(const char* language); 72 void set_script(const char* script); 73 void set_variant(const char* variant); 74 }; 75 76 // 77 // Implementation 78 // 79 LocaleValue()80LocaleValue::LocaleValue() { memset(this, 0, sizeof(LocaleValue)); } 81 compare(const LocaleValue & other)82int LocaleValue::compare(const LocaleValue& other) const { 83 return memcmp(this, &other, sizeof(LocaleValue)); 84 } 85 86 bool LocaleValue::operator<(const LocaleValue& o) const { 87 return compare(o) < 0; 88 } 89 90 bool LocaleValue::operator<=(const LocaleValue& o) const { 91 return compare(o) <= 0; 92 } 93 94 bool LocaleValue::operator==(const LocaleValue& o) const { 95 return compare(o) == 0; 96 } 97 98 bool LocaleValue::operator!=(const LocaleValue& o) const { 99 return compare(o) != 0; 100 } 101 102 bool LocaleValue::operator>=(const LocaleValue& o) const { 103 return compare(o) >= 0; 104 } 105 106 bool LocaleValue::operator>(const LocaleValue& o) const { 107 return compare(o) > 0; 108 } 109 110 } // namespace aapt 111 112 #endif // AAPT_LOCALE_VALUE_H 113