Feature - japanese2latin transliteration - in progress

OsmAnd/src/net/osmand/AndroidUtils.java

@@ -523,4 +523,6 @@ public class AndroidUtils {
 		}
 		return isKana;
 	}
+
+
 }

OsmAnd/src/net/osmand/plus/helpers/CustomTransliterationHelper.java

@@ -0,0 +1,89 @@
+package net.osmand.plus.helpers;
+
+import com.atilika.kuromoji.ipadic.Token;
+import com.atilika.kuromoji.ipadic.Tokenizer;
+import java.util.List;
+
+public class CustomTransliterationHelper {
+
+	public static String japanese2Romaji(String input) {
+
+		boolean capitalizeWords = true;
+		boolean isDebug = true;
+
+		Tokenizer tokenizer = new Tokenizer() ;
+		List<Token> tokens = tokenizer.tokenize(input);
+
+		StringBuffer buffer = new StringBuffer();
+		KanaToRomaji kanaToRomaji = new KanaToRomaji();
+		String lastTokenToMerge = "";
+		for (Token token : tokens) {
+			String type = token.getAllFeaturesArray()[1];
+			if (isDebug) {
+				System.out.println("Type: " + type);
+			}
+
+			if( token.getAllFeaturesArray()[0].equals("記号"))  {
+				buffer.append(token.getSurface());
+				continue;
+			}
+			switch(token.getAllFeaturesArray()[1]) {
+				case "数":
+				case "アルファベット":
+				case "サ変接続":
+					buffer.append(token.getSurface());
+					//break;
+					continue;
+				default:
+					String lastFeature = token.getAllFeaturesArray()[8];
+					if (lastFeature.equals("*")) {
+						buffer.append(token.getSurface());
+					}
+					else {
+						String romaji = kanaToRomaji.convert(token.getAllFeaturesArray()[8]);
+						if ( lastFeature.endsWith("ッ") ) {
+							lastTokenToMerge = lastFeature;
+							continue;
+						} else {
+							lastTokenToMerge = "";
+						}
+
+						if ( capitalizeWords == true ) {
+							buffer.append(romaji.substring(0, 1).toUpperCase());
+							buffer.append(romaji.substring(1));
+						} else {
+							// Convert foreign katakana words to uppercase
+							if(token.getSurface().equals(token.getPronunciation())) // detect katakana
+								romaji = romaji.toUpperCase();
+							buffer.append(romaji);
+						}
+					}
+			}
+			buffer.append(" ");
+		}
+		return buffer.toString();
+	}
+
+
+	public static boolean isCharCJK(final char c) {
+		if ((Character.UnicodeBlock.of(c) == Character.UnicodeBlock.HIRAGANA)
+			||(Character.UnicodeBlock.of(c) == Character.UnicodeBlock.KATAKANA)
+			||(Character.UnicodeBlock.of(c) == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS)
+			|| (Character.UnicodeBlock.of(c) == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A)
+			|| (Character.UnicodeBlock.of(c) == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B)
+			|| (Character.UnicodeBlock.of(c) == Character.UnicodeBlock.CJK_COMPATIBILITY_FORMS)
+			|| (Character.UnicodeBlock.of(c) == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS)
+
+			|| (Character.UnicodeBlock.of(c) == Character.UnicodeBlock.ENCLOSED_CJK_LETTERS_AND_MONTHS)) {
+			return true;
+		}
+		return false;
+	}
+
+	public static void main(String[] args) {
+		System.out.println(japanese2Romaji("川名本町"));
+		System.out.println(japanese2Romaji("明岸寺"));
+		System.out.println(japanese2Romaji("つきしま"));
+
+	}
+}

OsmAnd/src/net/osmand/plus/helpers/KanaToRomaji.java

@@ -1,4 +1,4 @@
-package net.osmand.plus;
+package net.osmand.plus.helpers;
 
 import java.util.HashMap;
 import java.util.Map;

OsmAnd/src/net/osmand/plus/render/TextRenderer.java

@@ -12,6 +12,7 @@ import net.osmand.binary.BinaryMapDataObject;
 import net.osmand.binary.BinaryMapIndexReader.TagValuePair;
 import net.osmand.data.QuadRect;
 import net.osmand.data.QuadTree;
+import net.osmand.plus.helpers.CustomTransliterationHelper;
 import net.osmand.plus.render.OsmandRenderer.RenderingContext;
 import net.osmand.render.RenderingRuleSearchRequest;
 import net.osmand.render.RenderingRulesStorage;
@@ -236,9 +237,15 @@ public class TextRenderer {
 			TextDrawInfo text = rc.textToDraw.get(i);
 			if (text.text != null && text.text.length() > 0) {
 				if (preferredLocale.length() > 0) {
-					text.text = Junidecode.unidecode(text.text);
+					if (CustomTransliterationHelper.isCharCJK(text.text.charAt(0))) {
+						text.text = CustomTransliterationHelper.japanese2Romaji(text.text);
+					} else {
+						text.text = Junidecode.unidecode(text.text);
+					}
 				}
 
+
+
 				// sest text size before finding intersection (it is used there)
 				float textSize = text.textSize * rc.textScale ;
 				paintText.setTextSize(textSize);