1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
/* GENERATED SOURCE. DO NOT MODIFY. */
// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 2009-2010, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*/
package android.icu.impl.locale;
import java.util.Collections;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.SortedMap;
import java.util.TreeMap;
import java.util.TreeSet;
import android.icu.impl.locale.InternalLocaleBuilder.CaseInsensitiveChar;
import android.icu.impl.locale.InternalLocaleBuilder.CaseInsensitiveString;
/**
* @hide Only a subset of ICU is exposed in Android
*/
public class LocaleExtensions {
private SortedMap<Character, Extension> _map;
private String _id;
private static final SortedMap<Character, Extension> EMPTY_MAP =
Collections.unmodifiableSortedMap(new TreeMap<Character, Extension>());
public static final LocaleExtensions EMPTY_EXTENSIONS;
public static final LocaleExtensions CALENDAR_JAPANESE;
public static final LocaleExtensions NUMBER_THAI;
static {
EMPTY_EXTENSIONS = new LocaleExtensions();
EMPTY_EXTENSIONS._id = "";
EMPTY_EXTENSIONS._map = EMPTY_MAP;
CALENDAR_JAPANESE = new LocaleExtensions();
CALENDAR_JAPANESE._id = "u-ca-japanese";
CALENDAR_JAPANESE._map = new TreeMap<Character, Extension>();
CALENDAR_JAPANESE._map.put(UnicodeLocaleExtension.SINGLETON, UnicodeLocaleExtension.CA_JAPANESE);
NUMBER_THAI = new LocaleExtensions();
NUMBER_THAI._id = "u-nu-thai";
NUMBER_THAI._map = new TreeMap<Character, Extension>();
NUMBER_THAI._map.put(UnicodeLocaleExtension.SINGLETON, UnicodeLocaleExtension.NU_THAI);
}
private LocaleExtensions() {
}
/*
* Package local constructor, only used by InternalLocaleBuilder.
*/
LocaleExtensions(Map<CaseInsensitiveChar, String> extensions,
Set<CaseInsensitiveString> uattributes, Map<CaseInsensitiveString, String> ukeywords) {
boolean hasExtension = (extensions != null && extensions.size() > 0);
boolean hasUAttributes = (uattributes != null && uattributes.size() > 0);
boolean hasUKeywords = (ukeywords != null && ukeywords.size() > 0);
if (!hasExtension && !hasUAttributes && !hasUKeywords) {
_map = EMPTY_MAP;
_id = "";
return;
}
// Build extension map
_map = new TreeMap<>();
if (hasExtension) {
for (Entry<CaseInsensitiveChar, String> ext : extensions.entrySet()) {
char key = AsciiUtil.toLower(ext.getKey().value());
String value = ext.getValue();
if (LanguageTag.isPrivateusePrefixChar(key)) {
// we need to exclude special variant in privuateuse, e.g. "x-abc-lvariant-DEF"
value = InternalLocaleBuilder.removePrivateuseVariant(value);
if (value == null) {
continue;
}
}
Extension e = new Extension(key, AsciiUtil.toLowerString(value));
_map.put(key, e);
}
}
if (hasUAttributes || hasUKeywords) {
TreeSet<String> uaset = null;
TreeMap<String, String> ukmap = null;
if (hasUAttributes) {
uaset = new TreeSet<String>();
for (CaseInsensitiveString cis : uattributes) {
uaset.add(AsciiUtil.toLowerString(cis.value()));
}
}
if (hasUKeywords) {
ukmap = new TreeMap<String, String>();
for (Entry<CaseInsensitiveString, String> kwd : ukeywords.entrySet()) {
String key = AsciiUtil.toLowerString(kwd.getKey().value());
String type = AsciiUtil.toLowerString(kwd.getValue());
ukmap.put(key, type);
}
}
UnicodeLocaleExtension ule = new UnicodeLocaleExtension(uaset, ukmap);
_map.put(UnicodeLocaleExtension.SINGLETON, ule);
}
if (_map.size() == 0) {
// this could happen when only privuateuse with special variant
_map = EMPTY_MAP;
_id = "";
} else {
_id = toID(_map);
}
}
public Set<Character> getKeys() {
return Collections.unmodifiableSet(_map.keySet());
}
public Extension getExtension(Character key) {
return _map.get(AsciiUtil.toLower(key.charValue()));
}
public String getExtensionValue(Character key) {
Extension ext = _map.get(AsciiUtil.toLower(key.charValue()));
if (ext == null) {
return null;
}
return ext.getValue();
}
public Set<String> getUnicodeLocaleAttributes() {
Extension ext = _map.get(UnicodeLocaleExtension.SINGLETON);
if (ext == null) {
return Collections.emptySet();
}
assert (ext instanceof UnicodeLocaleExtension);
return ((UnicodeLocaleExtension)ext).getUnicodeLocaleAttributes();
}
public Set<String> getUnicodeLocaleKeys() {
Extension ext = _map.get(UnicodeLocaleExtension.SINGLETON);
if (ext == null) {
return Collections.emptySet();
}
assert (ext instanceof UnicodeLocaleExtension);
return ((UnicodeLocaleExtension)ext).getUnicodeLocaleKeys();
}
public String getUnicodeLocaleType(String unicodeLocaleKey) {
Extension ext = _map.get(UnicodeLocaleExtension.SINGLETON);
if (ext == null) {
return null;
}
assert (ext instanceof UnicodeLocaleExtension);
return ((UnicodeLocaleExtension)ext).getUnicodeLocaleType(AsciiUtil.toLowerString(unicodeLocaleKey));
}
public boolean isEmpty() {
return _map.isEmpty();
}
public static boolean isValidKey(char c) {
return LanguageTag.isExtensionSingletonChar(c) || LanguageTag.isPrivateusePrefixChar(c);
}
public static boolean isValidUnicodeLocaleKey(String ukey) {
return UnicodeLocaleExtension.isKey(ukey);
}
private static String toID(SortedMap<Character, Extension> map) {
StringBuilder buf = new StringBuilder();
Extension privuse = null;
for (Entry<Character, Extension> entry : map.entrySet()) {
char singleton = entry.getKey().charValue();
Extension extension = entry.getValue();
if (LanguageTag.isPrivateusePrefixChar(singleton)) {
privuse = extension;
} else {
if (buf.length() > 0) {
buf.append(LanguageTag.SEP);
}
buf.append(extension);
}
}
if (privuse != null) {
if (buf.length() > 0) {
buf.append(LanguageTag.SEP);
}
buf.append(privuse);
}
return buf.toString();
}
@Override
public String toString() {
return _id;
}
public String getID() {
return _id;
}
@Override
public int hashCode() {
return _id.hashCode();
}
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (!(other instanceof LocaleExtensions)) {
return false;
}
return this._id.equals(((LocaleExtensions)other)._id);
}
}
|
