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
26namespace aapt {
27
28/**
29 * A convenience class to build and parse locales.
30 */
31struct 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
80LocaleValue::LocaleValue() { memset(this, 0, sizeof(LocaleValue)); }
81
82int LocaleValue::compare(const LocaleValue& other) const {
83  return memcmp(this, &other, sizeof(LocaleValue));
84}
85
86bool LocaleValue::operator<(const LocaleValue& o) const {
87  return compare(o) < 0;
88}
89
90bool LocaleValue::operator<=(const LocaleValue& o) const {
91  return compare(o) <= 0;
92}
93
94bool LocaleValue::operator==(const LocaleValue& o) const {
95  return compare(o) == 0;
96}
97
98bool LocaleValue::operator!=(const LocaleValue& o) const {
99  return compare(o) != 0;
100}
101
102bool LocaleValue::operator>=(const LocaleValue& o) const {
103  return compare(o) >= 0;
104}
105
106bool LocaleValue::operator>(const LocaleValue& o) const {
107  return compare(o) > 0;
108}
109
110}  // namespace aapt
111
112#endif  // AAPT_LOCALE_VALUE_H
113