xref: /frameworks/base/core/java/com/android/internal/util/HanziToPinyin.java

/*
 * Copyright (C) 2009 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.
 */

package com.android.internal.util;

import android.text.TextUtils;
import android.util.Log;

import java.text.Collator;
import java.util.ArrayList;
import java.util.Locale;

/**
 * An object to convert Chinese character to its corresponding pinyin string.
 * For characters with multiple possible pinyin string, only one is selected
 * according to collator. Polyphone is not supported in this implementation.
 * This class is implemented to achieve the best runtime performance and minimum
 * runtime resources with tolerable sacrifice of accuracy. This implementation
 * highly depends on zh_CN ICU collation data and must be always synchronized with
 * ICU.
 */
public class HanziToPinyin {
    private static final String TAG = "HanziToPinyin";

    private static final char[] UNIHANS = {
            '\u5416', '\u54ce', '\u5b89', '\u80ae', '\u51f9', '\u516b', '\u63b0', '\u6273',
            '\u90a6', '\u52f9', '\u9642', '\u5954', '\u4f3b', '\u7680', '\u782d', '\u706c',
            '\u618b', '\u6c43', '\u51ab', '\u7676', '\u5cec', '\u5693', '\u5072', '\u53c2',
            '\u4ed3', '\u64a1', '\u518a', '\u5d7e', '\u564c', '\u6260', '\u62c6', '\u8fbf',
            '\u4f25', '\u6284', '\u8f66', '\u62bb', '\u9637', '\u5403', '\u5145', '\u62bd',
            '\u51fa', '\u640b', '\u5ddb', '\u5205', '\u5439', '\u65fe', '\u8e14', '\u5472',
            '\u4ece', '\u51d1', '\u7c97', '\u6c46', '\u5d14', '\u90a8', '\u6413', '\u5491',
            '\u5446', '\u4e39', '\u5f53', '\u5200', '\u6074', '\u6265', '\u706f', '\u4efe',
            '\u55f2', '\u6541', '\u5201', '\u7239', '\u4e01', '\u4e1f', '\u4e1c', '\u543a',
            '\u5262', '\u8011', '\u5796', '\u5428', '\u591a', '\u59b8', '\u5940', '\u97a5',
            '\u800c', '\u53d1', '\u5e06', '\u531a', '\u98de', '\u5206', '\u4e30', '\u8985',
            '\u4ecf', '\u57ba', '\u7d11', '\u592b', '\u7324', '\u65ee', '\u4f85', '\u5e72',
            '\u5188', '\u768b', '\u6208', '\u7ed9', '\u6839', '\u63ef', '\u55bc', '\u55f0',
            '\u5de5', '\u52fe', '\u4f30', '\u9e39', '\u4e56', '\u5173', '\u5149', '\u5f52',
            '\u4e28', '\u8b34', '\u5459', '\u598e', '\u548d', '\u4f44', '\u592f', '\u8320',
            '\u8bc3', '\u9ed2', '\u62eb', '\u4ea8', '\u53ff', '\u9f41', '\u4e4e', '\u82b1',
            '\u6000', '\u6b22', '\u5ddf', '\u7070', '\u660f', '\u5419', '\u4e0c', '\u52a0',
            '\u620b', '\u6c5f', '\u827d', '\u9636', '\u5dfe', '\u5755', '\u5182', '\u4e29',
            '\u51e5', '\u59e2', '\u5658', '\u519b', '\u5494', '\u5f00', '\u938e', '\u5ffc',
            '\u5c3b', '\u533c', '\u808e', '\u52a5', '\u7a7a', '\u62a0', '\u625d', '\u5938',
            '\u84af', '\u5bbd', '\u5321', '\u4e8f', '\u5764', '\u6269', '\u62c9', '\u4f86',
            '\u5170', '\u5577', '\u635e', '\u4ec2', '\u96f7', '\u8137', '\u68f1', '\u695e',
            '\u550e', '\u4fe9', '\u5afe', '\u826f', '\u8e7d', '\u57d3', '\u53b8', '\u62ce',
            '\u6e9c', '\u9f99', '\u5a04', '\u565c', '\u5b6a', '\u62a1', '\u9831', '\u5988',
            '\u57cb', '\u989f', '\u7264', '\u732b', '\u5445', '\u95e8', '\u6c13', '\u54aa',
            '\u5b80', '\u55b5', '\u4e5c', '\u6c11', '\u540d', '\u8c2c', '\u6478', '\u725f',
            '\u6bcd', '\u62cf', '\u8149', '\u56e1', '\u56d4', '\u5b6c', '\u8bb7', '\u5a1e',
            '\u5ae9', '\u80fd', '\u92b0', '\u62c8', '\u5a18', '\u9e1f', '\u634f', '\u56dc',
            '\u5b81', '\u599e', '\u519c', '\u7fba', '\u5974', '\u597b', '\u9ec1', '\u90cd',
            '\u5662', '\u8bb4', '\u5991', '\u62cd', '\u7705', '\u6c78', '\u629b', '\u5478',
            '\u55b7', '\u5309', '\u4e76', '\u7247', '\u527d', '\u6c15', '\u59d8', '\u4e52',
            '\u948b', '\u5256', '\u4ec6', '\u4e03', '\u6390', '\u5343', '\u545b', '\u6084',
            '\u5207', '\u4eb2', '\u9751', '\u5b86', '\u74d7', '\u533a', '\u5cd1', '\u7094',
            '\u590b', '\u5465', '\u7a63', '\u835b', '\u60f9', '\u4eba', '\u6254', '\u65e5',
            '\u620e', '\u53b9', '\u909a', '\u5827', '\u6875', '\u95f0', '\u633c', '\u4ee8',
            '\u6be2', '\u4e09', '\u6852', '\u63bb', '\u8272', '\u68ee', '\u50e7', '\u6740',
            '\u7b5b', '\u5c71', '\u4f24', '\u5f30', '\u5962', '\u7533', '\u5347', '\u5c38',
            '\u53ce', '\u4e66', '\u5237', '\u8870', '\u95e9', '\u53cc', '\u8c01', '\u542e',
            '\u8bf4', '\u53b6', '\u5fea', '\u51c1', '\u82cf', '\u72fb', '\u590a', '\u5b59',
            '\u5506', '\u4ed6', '\u5b61', '\u574d', '\u6c64', '\u5932', '\u5fd1', '\u81af',
            '\u5254', '\u5929', '\u65eb', '\u6017', '\u5385', '\u70b5', '\u5077', '\u51f8',
            '\u6e4d', '\u63a8', '\u541e', '\u8bac', '\u52b8', '\u6b6a', '\u5f2f', '\u5c23',
            '\u5371', '\u6637', '\u7fc1', '\u631d', '\u4e4c', '\u5915', '\u5477', '\u4ed9',
            '\u4e61', '\u7071', '\u4e9b', '\u5fc3', '\u5174', '\u51f6', '\u4f11', '\u620c',
            '\u5405', '\u75b6', '\u7025', '\u4e2b', '\u54bd', '\u592e', '\u5e7a', '\u503b',
            '\u4e00', '\u4e5a', '\u5e94', '\u5537', '\u4f63', '\u4f18', '\u7ea1', '\u56e6',
            '\u66f0', '\u8480', '\u5e00', '\u707d', '\u5142', '\u7242', '\u50ae', '\u556b',
            '\u9c61', '\u600e', '\u66fd', '\u5412', '\u635a', '\u6cbe', '\u5f20', '\u4f4b',
            '\u8707', '\u8d1e', '\u9eee', '\u4e4b', '\u4e2d', '\u5dde', '\u6731', '\u6293',
            '\u62fd', '\u4e13', '\u5986', '\u96b9', '\u5b92', '\u5353', '\u4ed4', '\u5b97',
            '\u90b9', '\u79df', '\u5297', '\u55fa', '\u5c0a', '\u6628',
        };
    private final static byte[][] PINYINS = {
            {65, 00, 00, 00, 00, 00, }, {65, 73, 00, 00, 00, 00, },
            {65, 78, 00, 00, 00, 00, }, {65, 78, 71, 00, 00, 00, },
            {65, 79, 00, 00, 00, 00, }, {66, 65, 00, 00, 00, 00, },
            {66, 65, 73, 00, 00, 00, }, {66, 65, 78, 00, 00, 00, },
            {66, 65, 78, 71, 00, 00, }, {66, 65, 79, 00, 00, 00, },
            {66, 69, 73, 00, 00, 00, }, {66, 69, 78, 00, 00, 00, },
            {66, 69, 78, 71, 00, 00, }, {66, 73, 00, 00, 00, 00, },
            {66, 73, 65, 78, 00, 00, }, {66, 73, 65, 79, 00, 00, },
            {66, 73, 69, 00, 00, 00, }, {66, 73, 78, 00, 00, 00, },
            {66, 73, 78, 71, 00, 00, }, {66, 79, 00, 00, 00, 00, },
            {66, 85, 00, 00, 00, 00, }, {67, 65, 00, 00, 00, 00, },
            {67, 65, 73, 00, 00, 00, }, {67, 65, 78, 00, 00, 00, },
            {67, 65, 78, 71, 00, 00, }, {67, 65, 79, 00, 00, 00, },
            {67, 69, 00, 00, 00, 00, }, {67, 69, 78, 00, 00, 00, },
            {67, 69, 78, 71, 00, 00, }, {67, 72, 65, 00, 00, 00, },
            {67, 72, 65, 73, 00, 00, }, {67, 72, 65, 78, 00, 00, },
            {67, 72, 65, 78, 71, 00, }, {67, 72, 65, 79, 00, 00, },
            {67, 72, 69, 00, 00, 00, }, {67, 72, 69, 78, 00, 00, },
            {67, 72, 69, 78, 71, 00, }, {67, 72, 73, 00, 00, 00, },
            {67, 72, 79, 78, 71, 00, }, {67, 72, 79, 85, 00, 00, },
            {67, 72, 85, 00, 00, 00, }, {67, 72, 85, 65, 73, 00, },
            {67, 72, 85, 65, 78, 00, }, {67, 72, 85, 65, 78, 71, },
            {67, 72, 85, 73, 00, 00, }, {67, 72, 85, 78, 00, 00, },
            {67, 72, 85, 79, 00, 00, }, {67, 73, 00, 00, 00, 00, },
            {67, 79, 78, 71, 00, 00, }, {67, 79, 85, 00, 00, 00, },
            {67, 85, 00, 00, 00, 00, }, {67, 85, 65, 78, 00, 00, },
            {67, 85, 73, 00, 00, 00, }, {67, 85, 78, 00, 00, 00, },
            {67, 85, 79, 00, 00, 00, }, {68, 65, 00, 00, 00, 00, },
            {68, 65, 73, 00, 00, 00, }, {68, 65, 78, 00, 00, 00, },
            {68, 65, 78, 71, 00, 00, }, {68, 65, 79, 00, 00, 00, },
            {68, 69, 00, 00, 00, 00, }, {68, 69, 78, 00, 00, 00, },
            {68, 69, 78, 71, 00, 00, }, {68, 73, 00, 00, 00, 00, },
            {68, 73, 65, 00, 00, 00, }, {68, 73, 65, 78, 00, 00, },
            {68, 73, 65, 79, 00, 00, }, {68, 73, 69, 00, 00, 00, },
            {68, 73, 78, 71, 00, 00, }, {68, 73, 85, 00, 00, 00, },
            {68, 79, 78, 71, 00, 00, }, {68, 79, 85, 00, 00, 00, },
            {68, 85, 00, 00, 00, 00, }, {68, 85, 65, 78, 00, 00, },
            {68, 85, 73, 00, 00, 00, }, {68, 85, 78, 00, 00, 00, },
            {68, 85, 79, 00, 00, 00, }, {69, 00, 00, 00, 00, 00, },
            {69, 78, 00, 00, 00, 00, }, {69, 78, 71, 00, 00, 00, },
            {69, 82, 00, 00, 00, 00, }, {70, 65, 00, 00, 00, 00, },
            {70, 65, 78, 00, 00, 00, }, {70, 65, 78, 71, 00, 00, },
            {70, 69, 73, 00, 00, 00, }, {70, 69, 78, 00, 00, 00, },
            {70, 69, 78, 71, 00, 00, }, {70, 73, 65, 79, 00, 00, },
            {70, 79, 00, 00, 00, 00, }, {70, 85, 00, 00, 00, 00, },
            {70, 79, 85, 00, 00, 00, }, {70, 85, 00, 00, 00, 00, },
            {71, 85, 73, 00, 00, 00, }, {71, 65, 00, 00, 00, 00, },
            {71, 65, 73, 00, 00, 00, }, {71, 65, 78, 00, 00, 00, },
            {71, 65, 78, 71, 00, 00, }, {71, 65, 79, 00, 00, 00, },
            {71, 69, 00, 00, 00, 00, }, {71, 69, 73, 00, 00, 00, },
            {71, 69, 78, 00, 00, 00, }, {71, 69, 78, 71, 00, 00, },
            {74, 73, 69, 00, 00, 00, }, {71, 69, 00, 00, 00, 00, },
            {71, 79, 78, 71, 00, 00, }, {71, 79, 85, 00, 00, 00, },
            {71, 85, 00, 00, 00, 00, }, {71, 85, 65, 00, 00, 00, },
            {71, 85, 65, 73, 00, 00, }, {71, 85, 65, 78, 00, 00, },
            {71, 85, 65, 78, 71, 00, }, {71, 85, 73, 00, 00, 00, },
            {71, 85, 78, 00, 00, 00, }, {71, 85, 65, 78, 00, 00, },
            {71, 85, 79, 00, 00, 00, }, {72, 65, 00, 00, 00, 00, },
            {72, 65, 73, 00, 00, 00, }, {72, 65, 78, 00, 00, 00, },
            {72, 65, 78, 71, 00, 00, }, {72, 65, 79, 00, 00, 00, },
            {72, 69, 00, 00, 00, 00, }, {72, 69, 73, 00, 00, 00, },
            {72, 69, 78, 00, 00, 00, }, {72, 69, 78, 71, 00, 00, },
            {72, 79, 78, 71, 00, 00, }, {72, 79, 85, 00, 00, 00, },
            {72, 85, 00, 00, 00, 00, }, {72, 85, 65, 00, 00, 00, },
            {72, 85, 65, 73, 00, 00, }, {72, 85, 65, 78, 00, 00, },
            {72, 85, 65, 78, 71, 00, }, {72, 85, 73, 00, 00, 00, },
            {72, 85, 78, 00, 00, 00, }, {72, 85, 79, 00, 00, 00, },
            {74, 73, 00, 00, 00, 00, }, {74, 73, 65, 00, 00, 00, },
            {74, 73, 65, 78, 00, 00, }, {74, 73, 65, 78, 71, 00, },
            {74, 73, 65, 79, 00, 00, }, {74, 73, 69, 00, 00, 00, },
            {74, 73, 78, 00, 00, 00, }, {74, 73, 78, 71, 00, 00, },
            {74, 73, 79, 78, 71, 00, }, {74, 73, 85, 00, 00, 00, },
            {74, 85, 00, 00, 00, 00, }, {74, 85, 65, 78, 00, 00, },
            {74, 85, 69, 00, 00, 00, }, {74, 85, 78, 00, 00, 00, },
            {75, 65, 00, 00, 00, 00, }, {75, 65, 73, 00, 00, 00, },
            {75, 65, 78, 00, 00, 00, }, {75, 65, 78, 71, 00, 00, },
            {75, 65, 79, 00, 00, 00, }, {75, 69, 00, 00, 00, 00, },
            {75, 69, 78, 00, 00, 00, }, {75, 69, 78, 71, 00, 00, },
            {75, 79, 78, 71, 00, 00, }, {75, 79, 85, 00, 00, 00, },
            {75, 85, 00, 00, 00, 00, }, {75, 85, 65, 00, 00, 00, },
            {75, 85, 65, 73, 00, 00, }, {75, 85, 65, 78, 00, 00, },
            {75, 85, 65, 78, 71, 00, }, {75, 85, 73, 00, 00, 00, },
            {75, 85, 78, 00, 00, 00, }, {75, 85, 79, 00, 00, 00, },
            {76, 65, 00, 00, 00, 00, }, {76, 65, 73, 00, 00, 00, },
            {76, 65, 78, 00, 00, 00, }, {76, 65, 78, 71, 00, 00, },
            {76, 65, 79, 00, 00, 00, }, {76, 69, 00, 00, 00, 00, },
            {76, 69, 73, 00, 00, 00, }, {76, 73, 00, 00, 00, 00, },
            {76, 73, 78, 71, 00, 00, }, {76, 69, 78, 71, 00, 00, },
            {76, 73, 00, 00, 00, 00, }, {76, 73, 65, 00, 00, 00, },
            {76, 73, 65, 78, 00, 00, }, {76, 73, 65, 78, 71, 00, },
            {76, 73, 65, 79, 00, 00, }, {76, 73, 69, 00, 00, 00, },
            {76, 73, 78, 00, 00, 00, }, {76, 73, 78, 71, 00, 00, },
            {76, 73, 85, 00, 00, 00, }, {76, 79, 78, 71, 00, 00, },
            {76, 79, 85, 00, 00, 00, }, {76, 85, 00, 00, 00, 00, },
            {76, 85, 65, 78, 00, 00, }, {76, 85, 78, 00, 00, 00, },
            {76, 85, 79, 00, 00, 00, }, {77, 65, 00, 00, 00, 00, },
            {77, 65, 73, 00, 00, 00, }, {77, 65, 78, 00, 00, 00, },
            {77, 65, 78, 71, 00, 00, }, {77, 65, 79, 00, 00, 00, },
            {77, 69, 73, 00, 00, 00, }, {77, 69, 78, 00, 00, 00, },
            {77, 69, 78, 71, 00, 00, }, {77, 73, 00, 00, 00, 00, },
            {77, 73, 65, 78, 00, 00, }, {77, 73, 65, 79, 00, 00, },
            {77, 73, 69, 00, 00, 00, }, {77, 73, 78, 00, 00, 00, },
            {77, 73, 78, 71, 00, 00, }, {77, 73, 85, 00, 00, 00, },
            {77, 79, 00, 00, 00, 00, }, {77, 79, 85, 00, 00, 00, },
            {77, 85, 00, 00, 00, 00, }, {78, 65, 00, 00, 00, 00, },
            {78, 65, 73, 00, 00, 00, }, {78, 65, 78, 00, 00, 00, },
            {78, 65, 78, 71, 00, 00, }, {78, 65, 79, 00, 00, 00, },
            {78, 69, 00, 00, 00, 00, }, {78, 69, 73, 00, 00, 00, },
            {78, 69, 78, 00, 00, 00, }, {78, 69, 78, 71, 00, 00, },
            {78, 73, 00, 00, 00, 00, }, {78, 73, 65, 78, 00, 00, },
            {78, 73, 65, 78, 71, 00, }, {78, 73, 65, 79, 00, 00, },
            {78, 73, 69, 00, 00, 00, }, {78, 73, 78, 00, 00, 00, },
            {78, 73, 78, 71, 00, 00, }, {78, 73, 85, 00, 00, 00, },
            {78, 79, 78, 71, 00, 00, }, {78, 79, 85, 00, 00, 00, },
            {78, 85, 00, 00, 00, 00, }, {78, 85, 65, 78, 00, 00, },
            {78, 85, 78, 00, 00, 00, }, {78, 85, 79, 00, 00, 00, },
            {79, 00, 00, 00, 00, 00, }, {79, 85, 00, 00, 00, 00, },
            {80, 65, 00, 00, 00, 00, }, {80, 65, 73, 00, 00, 00, },
            {80, 65, 78, 00, 00, 00, }, {80, 65, 78, 71, 00, 00, },
            {80, 65, 79, 00, 00, 00, }, {80, 69, 73, 00, 00, 00, },
            {80, 69, 78, 00, 00, 00, }, {80, 69, 78, 71, 00, 00, },
            {80, 73, 00, 00, 00, 00, }, {80, 73, 65, 78, 00, 00, },
            {80, 73, 65, 79, 00, 00, }, {80, 73, 69, 00, 00, 00, },
            {80, 73, 78, 00, 00, 00, }, {80, 73, 78, 71, 00, 00, },
            {80, 79, 00, 00, 00, 00, }, {80, 79, 85, 00, 00, 00, },
            {80, 85, 00, 00, 00, 00, }, {81, 73, 00, 00, 00, 00, },
            {81, 73, 65, 00, 00, 00, }, {81, 73, 65, 78, 00, 00, },
            {81, 73, 65, 78, 71, 00, }, {81, 73, 65, 79, 00, 00, },
            {81, 73, 69, 00, 00, 00, }, {81, 73, 78, 00, 00, 00, },
            {81, 73, 78, 71, 00, 00, }, {81, 73, 79, 78, 71, 00, },
            {81, 73, 85, 00, 00, 00, }, {81, 85, 00, 00, 00, 00, },
            {81, 85, 65, 78, 00, 00, }, {81, 85, 69, 00, 00, 00, },
            {81, 85, 78, 00, 00, 00, }, {82, 65, 78, 00, 00, 00, },
            {82, 65, 78, 71, 00, 00, }, {82, 65, 79, 00, 00, 00, },
            {82, 69, 00, 00, 00, 00, }, {82, 69, 78, 00, 00, 00, },
            {82, 69, 78, 71, 00, 00, }, {82, 73, 00, 00, 00, 00, },
            {82, 79, 78, 71, 00, 00, }, {82, 79, 85, 00, 00, 00, },
            {82, 85, 00, 00, 00, 00, }, {82, 85, 65, 78, 00, 00, },
            {82, 85, 73, 00, 00, 00, }, {82, 85, 78, 00, 00, 00, },
            {82, 85, 79, 00, 00, 00, }, {83, 65, 00, 00, 00, 00, },
            {83, 65, 73, 00, 00, 00, }, {83, 65, 78, 00, 00, 00, },
            {83, 65, 78, 71, 00, 00, }, {83, 65, 79, 00, 00, 00, },
            {83, 69, 00, 00, 00, 00, }, {83, 69, 78, 00, 00, 00, },
            {83, 69, 78, 71, 00, 00, }, {83, 72, 65, 00, 00, 00, },
            {83, 72, 65, 73, 00, 00, }, {83, 72, 65, 78, 00, 00, },
            {83, 72, 65, 78, 71, 00, }, {83, 72, 65, 79, 00, 00, },
            {83, 72, 69, 00, 00, 00, }, {83, 72, 69, 78, 00, 00, },
            {83, 72, 69, 78, 71, 00, }, {83, 72, 73, 00, 00, 00, },
            {83, 72, 79, 85, 00, 00, }, {83, 72, 85, 00, 00, 00, },
            {83, 72, 85, 65, 00, 00, }, {83, 72, 85, 65, 73, 00, },
            {83, 72, 85, 65, 78, 00, }, {83, 72, 85, 65, 78, 71, },
            {83, 72, 85, 73, 00, 00, }, {83, 72, 85, 78, 00, 00, },
            {83, 72, 85, 79, 00, 00, }, {83, 73, 00, 00, 00, 00, },
            {83, 79, 78, 71, 00, 00, }, {83, 79, 85, 00, 00, 00, },
            {83, 85, 00, 00, 00, 00, }, {83, 85, 65, 78, 00, 00, },
            {83, 85, 73, 00, 00, 00, }, {83, 85, 78, 00, 00, 00, },
            {83, 85, 79, 00, 00, 00, }, {84, 65, 00, 00, 00, 00, },
            {84, 65, 73, 00, 00, 00, }, {84, 65, 78, 00, 00, 00, },
            {84, 65, 78, 71, 00, 00, }, {84, 65, 79, 00, 00, 00, },
            {84, 69, 00, 00, 00, 00, }, {84, 69, 78, 71, 00, 00, },
            {84, 73, 00, 00, 00, 00, }, {84, 73, 65, 78, 00, 00, },
            {84, 73, 65, 79, 00, 00, }, {84, 73, 69, 00, 00, 00, },
            {84, 73, 78, 71, 00, 00, }, {84, 79, 78, 71, 00, 00, },
            {84, 79, 85, 00, 00, 00, }, {84, 85, 00, 00, 00, 00, },
            {84, 85, 65, 78, 00, 00, }, {84, 85, 73, 00, 00, 00, },
            {84, 85, 78, 00, 00, 00, }, {84, 85, 79, 00, 00, 00, },
            {87, 65, 00, 00, 00, 00, }, {87, 65, 73, 00, 00, 00, },
            {87, 65, 78, 00, 00, 00, }, {87, 65, 78, 71, 00, 00, },
            {87, 69, 73, 00, 00, 00, }, {87, 69, 78, 00, 00, 00, },
            {87, 69, 78, 71, 00, 00, }, {87, 79, 00, 00, 00, 00, },
            {87, 85, 00, 00, 00, 00, }, {88, 73, 00, 00, 00, 00, },
            {88, 73, 65, 00, 00, 00, }, {88, 73, 65, 78, 00, 00, },
            {88, 73, 65, 78, 71, 00, }, {88, 73, 65, 79, 00, 00, },
            {88, 73, 69, 00, 00, 00, }, {88, 73, 78, 00, 00, 00, },
            {88, 73, 78, 71, 00, 00, }, {88, 73, 79, 78, 71, 00, },
            {88, 73, 85, 00, 00, 00, }, {88, 85, 00, 00, 00, 00, },
            {88, 85, 65, 78, 00, 00, }, {88, 85, 69, 00, 00, 00, },
            {88, 85, 78, 00, 00, 00, }, {89, 65, 00, 00, 00, 00, },
            {89, 65, 78, 00, 00, 00, }, {89, 65, 78, 71, 00, 00, },
            {89, 65, 79, 00, 00, 00, }, {89, 69, 00, 00, 00, 00, },
            {89, 73, 00, 00, 00, 00, }, {89, 73, 78, 00, 00, 00, },
            {89, 73, 78, 71, 00, 00, }, {89, 79, 00, 00, 00, 00, },
            {89, 79, 78, 71, 00, 00, }, {89, 79, 85, 00, 00, 00, },
            {89, 85, 00, 00, 00, 00, }, {89, 85, 65, 78, 00, 00, },
            {89, 85, 69, 00, 00, 00, }, {89, 85, 78, 00, 00, 00, },
            {90, 65, 00, 00, 00, 00, }, {90, 65, 73, 00, 00, 00, },
            {90, 65, 78, 00, 00, 00, }, {90, 65, 78, 71, 00, 00, },
            {90, 65, 79, 00, 00, 00, }, {90, 69, 00, 00, 00, 00, },
            {90, 69, 73, 00, 00, 00, }, {90, 69, 78, 00, 00, 00, },
            {90, 69, 78, 71, 00, 00, }, {90, 72, 65, 00, 00, 00, },
            {90, 72, 65, 73, 00, 00, }, {90, 72, 65, 78, 00, 00, },
            {90, 72, 65, 78, 71, 00, }, {90, 72, 65, 79, 00, 00, },
            {90, 72, 69, 00, 00, 00, }, {90, 72, 69, 78, 00, 00, },
            {90, 72, 69, 78, 71, 00, }, {90, 72, 73, 00, 00, 00, },
            {90, 72, 79, 78, 71, 00, }, {90, 72, 79, 85, 00, 00, },
            {90, 72, 85, 00, 00, 00, }, {90, 72, 85, 65, 00, 00, },
            {90, 72, 85, 65, 73, 00, }, {90, 72, 85, 65, 78, 00, },
            {90, 72, 85, 65, 78, 71, }, {90, 72, 85, 73, 00, 00, },
            {90, 72, 85, 78, 00, 00, }, {90, 72, 85, 79, 00, 00, },
            {90, 73, 00, 00, 00, 00, }, {90, 79, 78, 71, 00, 00, },
            {90, 79, 85, 00, 00, 00, }, {90, 85, 00, 00, 00, 00, },
            {90, 85, 65, 78, 00, 00, }, {90, 85, 73, 00, 00, 00, },
            {90, 85, 78, 00, 00, 00, }, {90, 85, 79, 00, 00, 00, },

        };

    /** First and last Chinese character with known Pinyin according to zh collation */
    private static final String FIRST_PINYIN_UNIHAN =  "\u5416";
    private static final String LAST_PINYIN_UNIHAN =  "\u5497";
    /** The first Chinese character in Unicode block */
    private static final char FIRST_UNIHAN = '\u3400';
    private static final Collator COLLATOR = Collator.getInstance(Locale.CHINA);

    private static HanziToPinyin sInstance;
    private final boolean mHasChinaCollator;

    public static class Token {
        /**
         * Separator between target string for each source char
         */
        public static final String SEPARATOR = " ";

        public static final int LATIN = 1;
        public static final int PINYIN = 2;
        public static final int UNKNOWN = 3;

        public Token() {
        }

        public Token(int type, String source, String target) {
            this.type = type;
            this.source = source;
            this.target = target;
        }
        /**
         * Type of this token, ASCII, PINYIN or UNKNOWN.
         */
        public int type;
        /**
         * Original string before translation.
         */
        public String source;
        /**
         * Translated string of source. For Han, target is corresponding Pinyin.
         * Otherwise target is original string in source.
         */
        public String target;
    }

    protected HanziToPinyin(boolean hasChinaCollator) {
        mHasChinaCollator = hasChinaCollator;
    }

    public static HanziToPinyin getInstance() {
        synchronized(HanziToPinyin.class) {
            if (sInstance != null) {
                return sInstance;
            }
            // Check if zh_CN collation data is available
            final Locale locale[] = Collator.getAvailableLocales();
            for (int i = 0; i < locale.length; i++) {
                if (locale[i].equals(Locale.CHINA)) {
                    sInstance = new HanziToPinyin(true);
                    return sInstance;
                }
            }
            Log.w(TAG, "There is no Chinese collator, HanziToPinyin is disabled");
            sInstance = new HanziToPinyin(false);
            return sInstance;
        }
    }

    private Token getToken(char character) {
        Token token = new Token();
        final String letter = Character.toString(character);
        token.source = letter;
        int offset = -1;
        int cmp;
        if (character < 256) {
            token.type = Token.LATIN;
            token.target = letter;
            return token;
        } else if (character < FIRST_UNIHAN) {
            token.type = Token.UNKNOWN;
            token.target = letter;
            return token;
        } else {
            cmp = COLLATOR.compare(letter, FIRST_PINYIN_UNIHAN);
            if (cmp < 0) {
                token.type = Token.UNKNOWN;
                token.target = letter;
                return token;
            } else if (cmp == 0) {
                token.type = Token.PINYIN;
                offset = 0;
            } else {
                cmp = COLLATOR.compare(letter, LAST_PINYIN_UNIHAN);
                if (cmp > 0) {
                    token.type = Token.UNKNOWN;
                    token.target = letter;
                    return token;
                } else if (cmp == 0) {
                    token.type = Token.PINYIN;
                    offset = UNIHANS.length - 1;
                }
            }
        }

        token.type = Token.PINYIN;
        if (offset < 0) {
            int begin = 0;
            int end = UNIHANS.length - 1;
            while (begin <= end) {
                offset = (begin + end) / 2;
                final String unihan = Character.toString(UNIHANS[offset]);
                cmp = COLLATOR.compare(letter, unihan);
                if (cmp == 0) {
                    break;
                } else if (cmp > 0) {
                    begin = offset + 1;
                } else {
                    end = offset - 1;
                }
            }
        }
        if (cmp < 0) {
            offset--;
        }
        StringBuilder pinyin = new StringBuilder();
        for (int j = 0; j < PINYINS[offset].length && PINYINS[offset][j] != 0; j++) {
            pinyin.append((char)PINYINS[offset][j]);
        }
        token.target = pinyin.toString();
        return token;
    }

    /**
     * Convert the input to a array of tokens. The sequence of ASCII or Unknown
     * characters without space will be put into a Token, One Hanzi character
     * which has pinyin will be treated as a Token.
     * If these is no China collator, the empty token array is returned.
     */
    public ArrayList<Token> get(final String input) {
        ArrayList<Token> tokens = new ArrayList<Token>();
        if (!mHasChinaCollator || TextUtils.isEmpty(input)) {
            // return empty tokens.
            return tokens;
        }
        final int inputLength = input.length();
        final StringBuilder sb = new StringBuilder();
        int tokenType = Token.LATIN;
        // Go through the input, create a new token when
        // a. Token type changed
        // b. Get the Pinyin of current charater.
        // c. current character is space.
        for (int i = 0; i < inputLength; i++) {
            final char character = input.charAt(i);
            if (character == ' ') {
                if (sb.length() > 0) {
                    addToken(sb, tokens, tokenType);
                }
            } else if (character < 256) {
                if (tokenType != Token.LATIN && sb.length() > 0) {
                    addToken(sb, tokens, tokenType);
                }
                tokenType = Token.LATIN;
                sb.append(character);
            } else if (character < FIRST_UNIHAN) {
                if (tokenType != Token.UNKNOWN && sb.length() > 0) {
                    addToken(sb, tokens, tokenType);
                }
                tokenType = Token.UNKNOWN;
                sb.append(character);
            } else {
                Token t = getToken(character);
                if (t.type == Token.PINYIN) {
                    if (sb.length() > 0) {
                        addToken(sb, tokens, tokenType);
                    }
                    tokens.add(t);
                    tokenType = Token.PINYIN;
                } else {
                    if (tokenType != t.type && sb.length() > 0) {
                        addToken(sb, tokens, tokenType);
                    }
                    tokenType = t.type;
                    sb.append(character);
                }
            }
        }
        if (sb.length() > 0) {
            addToken(sb, tokens, tokenType);
        }
        return tokens;
    }

    private void addToken(final StringBuilder sb, final ArrayList<Token> tokens,
            final int tokenType) {
        String str = sb.toString();
        tokens.add(new Token(tokenType, str, str));
        sb.setLength(0);
    }

}