Add Latvian transliteration

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBApplication.java

@@ -1135,7 +1135,7 @@ public class GBApplication extends Application {
 
         if (oldVersion < 16) {
             // If transliteration was enabled for a device, migrate it to the per-language setting
-            final String defaultLanguagesIfEnabled = "extended_ascii,scandinavian,german,russian,hebrew,greek,ukranian,arabic,persian,lithuanian,polish,estonian,icelandic,czech,turkish,bengali,korean";
+            final String defaultLanguagesIfEnabled = "extended_ascii,scandinavian,german,russian,hebrew,greek,ukranian,arabic,persian,latvian,lithuanian,polish,estonian,icelandic,czech,turkish,bengali,korean";
             try (DBHandler db = acquireDB()) {
                 final DaoSession daoSession = db.getDaoSession();
                 final List<Device> activeDevices = DBHelper.getActiveDevices(daoSession);

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/language/LanguageUtils.java

@@ -48,6 +48,7 @@ import nodomain.freeyourgadget.gadgetbridge.util.language.impl.GreekTransliterat
 import nodomain.freeyourgadget.gadgetbridge.util.language.impl.HebrewTransliterator;
 import nodomain.freeyourgadget.gadgetbridge.util.language.impl.IcelandicTransliterator;
 import nodomain.freeyourgadget.gadgetbridge.util.language.impl.KoreanTransliterator;
+import nodomain.freeyourgadget.gadgetbridge.util.language.impl.LatvianTransliterator;
 import nodomain.freeyourgadget.gadgetbridge.util.language.impl.LithuanianTransliterator;
 import nodomain.freeyourgadget.gadgetbridge.util.language.impl.PersianTransliterator;
 import nodomain.freeyourgadget.gadgetbridge.util.language.impl.PolishTransliterator;
@@ -73,6 +74,7 @@ public class LanguageUtils {
         put("hebrew", new HebrewTransliterator());
         put("icelandic", new IcelandicTransliterator());
         put("korean", new KoreanTransliterator());
+        put("latvian", new LatvianTransliterator());
         put("lithuanian", new LithuanianTransliterator());
         put("persian", new PersianTransliterator());
         put("polish", new PolishTransliterator());

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/language/impl/LatvianTransliterator.java

@@ -0,0 +1,33 @@
+/*  Copyright (C) 2017-2023 Andreas Shimokawa, Aniruddha Adhikary, Daniele
+    Gobbetti, ivanovlev, kalaee, lazarosfs, McSym28, M. Hadi, Roi Greenberg,
+    Taavi Eomäe, Ted Stein, Thomas, Yaron Shahrabani, José Rebelo, Davis
+    Mosenkovs
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+package nodomain.freeyourgadget.gadgetbridge.util.language.impl;
+
+import java.util.HashMap;
+
+import nodomain.freeyourgadget.gadgetbridge.util.language.SimpleTransliterator;
+
+public class LatvianTransliterator extends SimpleTransliterator {
+    public LatvianTransliterator() {
+        super(new HashMap<Character, String>() {{
+            put('ā', "a"); put('č', "c"); put('ē', "e"); put('ģ', "g"); put('ī', "i"); put('ķ', "k"); put('ļ', "l"); put('ņ', "n"); put('š', "s"); put('ū', "u"); put('ž', "z");
+            put('Ā', "A"); put('Č', "C"); put('Ē', "E"); put('Ģ', "G"); put('Ī', "I"); put('Ķ', "K"); put('Ļ', "L"); put('Ņ', "N"); put('Š', "S"); put('Ū', "U"); put('Ž', "Z");
+        }});
+    }
+}

app/src/main/res/values/arrays.xml

@@ -3081,6 +3081,7 @@
         <item>@string/hebrew</item>
         <item>@string/icelandic</item>
         <item>@string/korean</item>
+        <item>@string/latvian</item>
         <item>@string/lithuanian</item>
         <item>@string/persian</item>
         <item>@string/polish</item>
@@ -3104,6 +3105,7 @@
         <item>hebrew</item>
         <item>icelandic</item>
         <item>korean</item>
+        <item>latvian</item>
         <item>lithuanian</item>
         <item>persian</item>
         <item>polish</item>

app/src/main/res/values/strings.xml

@@ -996,6 +996,7 @@
     <string name="estonian">Estonian</string>
     <string name="extended_ascii">Extended ASCII</string>
     <string name="icelandic">Icelandic</string>
+    <string name="latvian">Latvian</string>
     <string name="lithuanian">Lithuanian</string>
     <string name="persian">Persian</string>
     <string name="scandinavian">Scandinavian</string>

app/src/test/java/nodomain/freeyourgadget/gadgetbridge/util/language/LanguageUtilsTest.java

@@ -149,6 +149,21 @@ public class LanguageUtilsTest extends TestBase {
         assertEquals("Korean transliteration modified a non-Hangul composite", germanExpected, germanActual);
     }
 
+    @Test
+    public void testStringTransliterateLatvian() {
+        final Transliterator transliterator = LanguageUtils.getTransliterator("latvian");
+
+        String input = "ā č ē ģ ī ķ ļ ņ š ū ž Ā Č Ē Ģ Ī Ķ Ļ Ņ Š Ū Ž";
+        String output = transliterator.transliterate(input);
+        String expected = "a c e g i k l n s u z A C E G I K L N S U Z";
+        assertEquals("latvian translation failed", expected, output);
+
+        input = "aāa cčc eēe gģg iīi kķk lļl nņn sšs uūu zžz AĀA CČC EĒE GĢG IĪI KĶK LĻL NŅN SŠS UŪU ZŽZ";
+        output = transliterator.transliterate(input);
+        expected = "aaa ccc eee ggg iii kkk lll nnn sss uuu zzz AAA CCC EEE GGG III KKK LLL NNN SSS UUU ZZZ";
+        assertEquals("latvian translation failed", expected, output);
+    }
+
     @Test
     public void testStringTransliterateLithuanian() {
         final Transliterator transliterator = LanguageUtils.getTransliterator("lithuanian");