Issue #3169212 by int_ua, Matroskeen, anmolgoyal74, Krzysztof Domański, alexpott, biblos, init90, xjm: Improve transliteration of Ukrainian letters

core/lib/Drupal/Component/Transliteration/data/uk.php

@@ -0,0 +1,26 @@
+<?php
+
+/**
+ * @file
+ * Ukrainian transliteration data for the PhpTransliteration class.
+ * @see https://zakon.rada.gov.ua/laws/show/55-2010-п#Text
+ */
+
+$overrides['uk'] = [
+  0x413 => 'H',
+  0x433 => 'h',
+  0x404 => 'Ye',
+  0x454 => 'ye',
+  0x418 => 'Y',
+  0x438 => 'y',
+  0x407 => 'Yi',
+  0x457 => 'yi',
+  0x426 => 'Ts',
+  0x446 => 'ts',
+  0x429 => 'Shch',
+  0x449 => 'shch',
+  // Hide several variations of apostrophe character.
+  0x2bc => '',
+  0x27 => '',
+  0x2019 => '',
+];

core/tests/Drupal/Tests/Component/Transliteration/PhpTransliterationTest.php

@@ -141,6 +141,8 @@ class PhpTransliterationTest extends TestCase {
       ['da', $random, $random],
       ['kg', $three_byte, 'ts'],
       // Test strings in some other languages.
+      // Ukrainian pangram.
+      ['uk', 'На подушечці форми любої є й ґудзик щоб пірʼя геть жовте сховати.', 'Na podushechtsi formy lyuboyi ye y gudzyk shchob pirya het zhovte skhovaty.'],
       // Turkish, provided by drupal.org user Kartagis.
       ['tr', 'Abayı serdiler bize. Söyleyeceğim yüzlerine. Sanırım hepimiz aynı şeyi düşünüyoruz.', 'Abayi serdiler bize. Soyleyecegim yuzlerine. Sanirim hepimiz ayni seyi dusunuyoruz.'],
       // Max length.