X-Git-Url: https://git.saurik.com/apple/icu.git/blobdiff_plain/4388f060552cc537e71e957d32f35e9d75a61233..0f5d89e82340278ed3d7d50029f37cab2c41a57e:/icuSources/data/translit/ja_Latn_ru.txt

diff --git a/icuSources/data/translit/ja_Latn_ru.txt b/icuSources/data/translit/ja_Latn_ru.txt
index 05a623b8..fc2bf525 100644
--- a/icuSources/data/translit/ja_Latn_ru.txt
+++ b/icuSources/data/translit/ja_Latn_ru.txt
@@ -1,64 +1,129 @@
-# ***************************************************************************
-# *
-# *  Copyright (C) 2004-2012, International Business Machines
-# *  Corporation; Unicode, Inc.; and others.  All Rights Reserved.
-# *
-# ***************************************************************************
+# © 2016 and later: Unicode, Inc. and others.
+# License & terms of use: http://www.unicode.org/copyright.html#License
+#
 # File: ja_Latn_ru.txt
-# Generated from CLDR 
+# Generated from CLDR
+#
+
+# Japanese (Rōmaji) to Russian (Cyrillic) Polivanov transliteration for ICU.
+# Can be run in sequence after e.g. Katakana-Latin.
+#
+# These rules cannot be used to target Bulgarian, Serbian, Tajik, or Ukrainian.
+#
+# TODO: Cyrillization needs to respect morpheme/Kanji boundaries.
+# 中井 becomes Накаи, but 北海道 becomes Хоккайдо.  We need boundary
+# markup in the input in order to do that properly.
 #
 ::NFD(NFC);
 ::[:Latin:] Lower();
+#
+#
 $lengthMarker = [\u0302\u0304];
+#
+#
+# Delete apostrophes.  Apostrophes after "n" are consumed below.
 \' → ;
+#
+#
+# Turn long /e:/ into diphthong /ei/.
+# Note that /ei/ across a morpheme boundary (e.g. 武井 Takei) becomes эи.
 e $lengthMarker → эй ;
+#
+#
+# Turn long /i:/ into two vowels /ii/.
 i $lengthMarker → | i i ;
+#
+#
+# Ignore vowel length everywhere else.
 $lengthMarker → ;
-a → а ;
+#
+#
+# Vowels.
+#
+# TODO(mjansche): Enable diphthongs once we have Kanji boundaries.
+## ai → ай ;
+a  → а ;
 i\~e → | ye ;
-i → и ;
-u\~ → в ; # ウィ etc.
-u → у ;
-e → э ;
-o → о ;
+i  → и ;
+u\~ → в ;  # ウィ etc.
+#
+## ui → уй ;
+u  → у ;
+e  → э ;
+o  → о ;
+#
+#
+# Consonants.
+#
 k → к ;
+#
+#
 sh → | sy ;
 s → с ;
-ch → | ty ;
+#
+#
+ch     → | ty ;
 c } ch → t ;
-te\~ → | t ; # テュ
-to\~ → | t ; # トゥ
-tsu\~ → | ts ; # ツァ, ツィ, etc.
+te\~   → | t ;   # テュ
+to\~   → | t ;   # トゥ
+tsu\~  → | ts ;  # ツァ, ツィ, etc.
 ts → ц ;
-t → т ;
+t  → т ;
+#
+#
 \~tsu → | tsu ;
-n } [bpm] → м ; # 群馬 → Гумма
+#
+#
+n } [bpm] → м ;  # 群馬 → Гумма
 n\' → нъ ;
 n → н ;
+#
+#
 h → х ;
-fu\~ → | f ; # フュ
+fu\~ → | f ;  # フュ
 f → ф ;
+#
+#
 m → м ;
+#
+#
 ya → я ;
-yi → и ; # Added for convenience, after sh, ch, j.
+yi → и ;  # Added for convenience, after sh, ch, j.
 yu → ю ;
-ye → е ; # ?? unobserved
+ye → е ;  # ?? unobserved
 yo → ё ;
+#
+#
 r → р ;
+#
+#
 wa → ва ;
 w → ;
+#
+#
 g → г ;
+#
+#
 j → | zy ;
 z → дз ;
-de\~ → | d ; # デュ
-dji\~ → | z ; # ヂャ, ヂュ, etc.
-dj → | j ; # ヂ
-do\~ → | d ; # ドゥ
-dzu\~ → | z ; # ヅァ, ヅィ, etc.
-dz → | z ; # ヅ
+#
+#
+de\~  → | d ;  # デュ
+dji\~ → | z ;  # ヂャ, ヂュ, etc.
+dj    → | j ;  # ヂ
+do\~  → | d ;  # ドゥ
+dzu\~ → | z ;  # ヅァ, ヅィ, etc.
+dz    → | z ;  # ヅ
 d → д ;
+#
+#
 b → б ;
-vu\~ → | v ; # ヴァ, etc.
-v → в ; # ?? unobserved
+vu\~ → | v ;  # ヴァ, etc.
+v → в ;  # ?? unobserved
+#
+#
 p → п ;
+#
+#
 ::NFC(NFD);
+