254 lines
7 KiB
Java
254 lines
7 KiB
Java
package net.osmand.util;
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import com.atilika.kuromoji.ipadic.Token;
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import com.atilika.kuromoji.ipadic.Tokenizer;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import net.osmand.PlatformUtil;
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import net.sf.junidecode.Junidecode;
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import org.apache.commons.logging.Log;
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public class TransliterationHelper {
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private static TransliterationHelper instance;
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public final static Log LOG = PlatformUtil.getLog(TransliterationHelper.class);
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public final static String DEFAULT = "default";
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public final static String JAPAN = "Japan";
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private static String country = DEFAULT;
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private static Tokenizer tokenizer;
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private static Map<String, String> katakanaMap = new HashMap<>();
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private TransliterationHelper() {
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}
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static {
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try {
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instance = new TransliterationHelper();
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} catch (Exception e) {
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LOG.debug(e.getMessage(), e);
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}
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}
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public static TransliterationHelper getInstance() {
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return instance;
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}
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public static void setCountry(String countryName) {
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if (!countryName.equals(country)) {
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switch (countryName) {
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case "Japan": {
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country = JAPAN;
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break;
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}
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default:
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country = DEFAULT;
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break;
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}
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}
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}
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public static String getCountry() {
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return country;
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}
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public static String transliterate(String text) {
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if (tokenizer == null) {
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tokenizer = new Tokenizer();
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}
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switch (country) {
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case DEFAULT:
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return Junidecode.unidecode(text);
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case JAPAN:
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return japanese2Romaji(text);
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}
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return text;
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}
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private static String japanese2Romaji(String text) {
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boolean capitalizeWords = true;
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List<Token> tokens = tokenizer.tokenize(text);
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StringBuilder builder = new StringBuilder();
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if (katakanaMap.isEmpty()) {
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initKanaMap();
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}
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for (Token token : tokens) {
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String type = token.getAllFeaturesArray()[1];
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if (token.getAllFeaturesArray()[0].equals("記号")) {
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builder.append(token.getSurface());
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continue;
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}
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switch (token.getAllFeaturesArray()[1]) {
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case "数":
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case "アルファベット":
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case "サ変接続":
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builder.append(token.getSurface());
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continue;
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default:
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String lastFeature = token.getAllFeaturesArray()[8];
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if (lastFeature.equals("*")) {
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builder.append(token.getSurface());
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} else {
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String romaji = convertKanaToRomaji(token.getAllFeaturesArray()[8]);
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if (capitalizeWords) {
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builder.append(romaji.substring(0, 1).toUpperCase());
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builder.append(romaji.substring(1));
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} else {
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if (token.getSurface()
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.equals(token.getPronunciation())) {
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romaji = romaji.toUpperCase();
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}
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builder.append(romaji);
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}
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}
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}
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builder.append(" ");
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}
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return builder.toString();
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}
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private static String convertKanaToRomaji(String s) {
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StringBuilder t = new StringBuilder();
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for (int i = 0; i < s.length(); i++) {
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if (i <= s.length() - 2) {
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if (katakanaMap.containsKey(s.substring(i, i + 2))) {
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t.append(katakanaMap.get(s.substring(i, i + 2)));
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i++;
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} else if (katakanaMap.containsKey(s.substring(i, i + 1))) {
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t.append(katakanaMap.get(s.substring(i, i + 1)));
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} else if (s.charAt(i) == 'ッ') {
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t.append(katakanaMap.get(s.substring(i + 1, i + 2)).charAt(0));
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} else {
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t.append(s.charAt(i));
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}
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} else {
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if (katakanaMap.containsKey(s.substring(i, i + 1))) {
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t.append(katakanaMap.get(s.substring(i, i + 1)));
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} else {
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t.append(s.charAt(i));
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}
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}
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}
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return t.toString();
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}
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private static void initKanaMap() {
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katakanaMap.put("ア", "a");
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katakanaMap.put("イ", "i");
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katakanaMap.put("ウ", "u");
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katakanaMap.put("エ", "e");
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katakanaMap.put("オ", "o");
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katakanaMap.put("カ", "ka");
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katakanaMap.put("キ", "ki");
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katakanaMap.put("ク", "ku");
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katakanaMap.put("ケ", "ke");
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katakanaMap.put("コ", "ko");
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katakanaMap.put("サ", "sa");
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katakanaMap.put("シ", "shi");
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katakanaMap.put("ス", "su");
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katakanaMap.put("セ", "se");
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katakanaMap.put("ソ", "so");
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katakanaMap.put("タ", "ta");
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katakanaMap.put("チ", "chi");
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katakanaMap.put("ツ", "tsu");
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katakanaMap.put("テ", "te");
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katakanaMap.put("ト", "to");
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katakanaMap.put("ナ", "na");
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katakanaMap.put("ニ", "ni");
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katakanaMap.put("ヌ", "nu");
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katakanaMap.put("ネ", "ne");
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katakanaMap.put("ノ", "no");
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katakanaMap.put("ハ", "ha");
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katakanaMap.put("ヒ", "hi");
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katakanaMap.put("フ", "fu");
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katakanaMap.put("ヘ", "he");
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katakanaMap.put("ホ", "ho");
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katakanaMap.put("マ", "ma");
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katakanaMap.put("ミ", "mi");
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katakanaMap.put("ム", "mu");
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katakanaMap.put("メ", "me");
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katakanaMap.put("モ", "mo");
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katakanaMap.put("ヤ", "ya");
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katakanaMap.put("ユ", "yu");
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katakanaMap.put("ヨ", "yo");
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katakanaMap.put("ラ", "ra");
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katakanaMap.put("リ", "ri");
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katakanaMap.put("ル", "ru");
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katakanaMap.put("レ", "re");
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katakanaMap.put("ロ", "ro");
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katakanaMap.put("ワ", "wa");
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katakanaMap.put("ヲ", "wo");
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katakanaMap.put("ン", "n");
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katakanaMap.put("ガ", "ga");
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katakanaMap.put("ギ", "gi");
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katakanaMap.put("グ", "gu");
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katakanaMap.put("ゲ", "ge");
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katakanaMap.put("ゴ", "go");
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katakanaMap.put("ザ", "za");
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katakanaMap.put("ジ", "ji");
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katakanaMap.put("ズ", "zu");
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katakanaMap.put("ゼ", "ze");
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katakanaMap.put("ゾ", "zo");
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katakanaMap.put("ダ", "da");
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katakanaMap.put("ヂ", "ji");
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katakanaMap.put("ヅ", "zu");
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katakanaMap.put("デ", "de");
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katakanaMap.put("ド", "do");
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katakanaMap.put("バ", "ba");
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katakanaMap.put("ビ", "bi");
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katakanaMap.put("ブ", "bu");
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katakanaMap.put("ベ", "be");
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katakanaMap.put("ボ", "bo");
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katakanaMap.put("パ", "pa");
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katakanaMap.put("ピ", "pi");
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katakanaMap.put("プ", "pu");
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katakanaMap.put("ペ", "pe");
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katakanaMap.put("ポ", "po");
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katakanaMap.put("キャ", "kya");
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katakanaMap.put("キュ", "kyu");
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katakanaMap.put("キョ", "kyo");
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katakanaMap.put("シャ", "sha");
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katakanaMap.put("シュ", "shu");
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katakanaMap.put("ショ", "sho");
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katakanaMap.put("チャ", "cha");
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katakanaMap.put("チュ", "chu");
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katakanaMap.put("チョ", "cho");
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katakanaMap.put("ニャ", "nya");
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katakanaMap.put("ニュ", "nyu");
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katakanaMap.put("ニョ", "nyo");
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katakanaMap.put("ヒャ", "hya");
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katakanaMap.put("ヒュ", "hyu");
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katakanaMap.put("ヒョ", "hyo");
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katakanaMap.put("リャ", "rya");
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katakanaMap.put("リュ", "ryu");
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katakanaMap.put("リョ", "ryo");
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katakanaMap.put("ギャ", "gya");
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katakanaMap.put("ギュ", "gyu");
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katakanaMap.put("ギョ", "gyo");
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katakanaMap.put("ジャ", "ja");
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katakanaMap.put("ジュ", "ju");
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katakanaMap.put("ジョ", "jo");
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katakanaMap.put("ティ", "ti");
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katakanaMap.put("ディ", "di");
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katakanaMap.put("ツィ", "tsi");
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katakanaMap.put("ヂャ", "dya");
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katakanaMap.put("ヂュ", "dyu");
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katakanaMap.put("ヂョ", "dyo");
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katakanaMap.put("ビャ", "bya");
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katakanaMap.put("ビュ", "byu");
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katakanaMap.put("ビョ", "byo");
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katakanaMap.put("ピャ", "pya");
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katakanaMap.put("ピュ", "pyu");
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katakanaMap.put("ピョ", "pyo");
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katakanaMap.put("ー", "-");
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}
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}
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