1/* 2 * Copyright (C) 2013 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 17package android.support.v4.text; 18 19import android.os.Build; 20 21public class ICUCompat { 22 23 interface ICUCompatImpl { 24 public String getScript(String locale); 25 public String addLikelySubtags(String locale); 26 } 27 28 static class ICUCompatImplBase implements ICUCompatImpl { 29 @Override 30 public String getScript(String locale) { 31 return null; 32 } 33 34 @Override 35 public String addLikelySubtags(String locale) { 36 return locale; 37 } 38 } 39 40 static class ICUCompatImplIcs implements ICUCompatImpl { 41 @Override 42 public String getScript(String locale) { 43 return ICUCompatIcs.getScript(locale); 44 } 45 46 @Override 47 public String addLikelySubtags(String locale) { 48 return ICUCompatIcs.addLikelySubtags(locale); 49 } 50 } 51 52 private static final ICUCompatImpl IMPL; 53 54 static { 55 final int version = Build.VERSION.SDK_INT; 56 if (version >= 14) { 57 IMPL = new ICUCompatImplIcs(); 58 } else { 59 IMPL = new ICUCompatImplBase(); 60 } 61 } 62 63 /** 64 * Returns the script (language code) of a script. 65 * 66 * @param locale The locale. 67 * @return a String representing the script (language code) of the locale. 68 */ 69 public static String getScript(String locale) { 70 return IMPL.getScript(locale); 71 } 72 73 /** 74 * Add the likely subtags for a provided locale ID, per the algorithm described in the following 75 * CLDR technical report: 76 * 77 * http://www.unicode.org/reports/tr35/#Likely_Subtags 78 * 79 * If locale is already in the maximal form, or there is no data available for maximization, 80 * it will be just returned. For example, "und-Zzzz" cannot be maximized, since there is no 81 * reasonable maximization. 82 * 83 * Examples: 84 * 85 * "en" maximizes to "en_Latn_US" 86 * "de" maximizes to "de_Latn_US" 87 * "sr" maximizes to "sr_Cyrl_RS" 88 * "sh" maximizes to "sr_Latn_RS" (Note this will not reverse.) 89 * "zh_Hani" maximizes to "zh_Hans_CN" (Note this will not reverse.) 90 91 * @param locale The locale to maximize 92 * 93 * @return the maximized locale 94 */ 95 public static String addLikelySubtags(String locale) { 96 return IMPL.addLikelySubtags(locale); 97 } 98} 99