# encoding: utf8
-"""Provides `romanize()` for romanizing simple Japanese text."""
-
-_roomaji_kana = {
- u'ア': 'a', u'イ': 'i', u'ウ': 'u', u'エ': 'e', u'オ': 'o',
- u'カ': 'ka', u'キ': 'ki', u'ク': 'ku', u'ケ': 'ke', u'コ': 'ko',
- u'サ': 'sa', u'シ': 'shi', u'ス': 'su', u'セ': 'se', u'ソ': 'so',
- u'タ': 'ta', u'チ': 'chi', u'ツ': 'tsu', u'テ': 'te', u'ト': 'to',
- u'ナ': 'na', u'ニ': 'ni', u'ヌ': 'nu', u'ネ': 'ne', u'ノ': 'no',
- u'ハ': 'ha', u'ヒ': 'hi', u'フ': 'fu', u'ヘ': 'he', u'ホ': 'ho',
- u'マ': 'ma', u'ミ': 'mi', u'ム': 'mu', u'メ': 'me', u'モ': 'mo',
- u'ヤ': 'ya', u'ユ': 'yu', u'ヨ': 'yo',
- u'ラ': 'ra', u'リ': 'ri', u'ル': 'ru', u'レ': 're', u'ロ': 'ro',
- u'ワ': 'wa', u'ヰ': 'wi', u'ヱ': 'we', u'ヲ': 'wo',
- u'ン': 'n',
- u'ガ': 'ga', u'ギ': 'gi', u'グ': 'gu', u'ゲ': 'ge', u'ゴ': 'go',
- u'ザ': 'za', u'ジ': 'ji', u'ズ': 'zu', u'ゼ': 'ze', u'ゾ': 'zo',
- u'ダ': 'da', u'ヂ': 'ji', u'ヅ': 'dzu', u'デ': 'de', u'ド': 'do',
- u'バ': 'ba', u'ビ': 'bi', u'ブ': 'bu', u'ベ': 'be', u'ボ': 'bo',
- u'パ': 'pa', u'ピ': 'pi', u'プ': 'pu', u'ペ': 'pe', u'ポ': 'po',
-}
-
-_roomaji_youon = {
- u'ャ': 'ya', u'ュ': 'yu', u'ョ': 'yo',
- u'ゃ': 'ya', u'ゅ': 'yu', u'ょ': 'yo',
-}
-
-# XXX If romanize() ever handles hiragana, it will need to make sure that the
-# preceding character was a katakana
-# This does not include every small kana combination, but should include every
-# one used in a Pokémon name. An exhaustive list would be.. very long
-_roomaji_small_kana = {
- u'ァ': 'a', u'ィ': 'i', u'ゥ': 'u', u'ェ': 'e', u'ォ': 'o',
-}
-_roomaji_small_kana_combos = {
- u'チェ': 'che',
- u'シェ': 'she',
- u'テァ': 'tha', u'ティ': 'ti', u'テゥ': 'thu', u'テェ': 'tye', u'テォ': 'tho',
- u'デァ': 'dha', u'ディ': 'di', u'デゥ': 'dhu', u'デェ': 'dye', u'デォ': 'dho',
- u'ファ': 'fa', u'フィ': 'fi', u'ホゥ': 'hu', u'フェ': 'fe', u'フォ': 'fo',
-}
-
-def romanize(string):
- """Converts a string of kana to roomaji."""
-
- vowels = ['a', 'e', 'i', 'o', 'u', 'y']
-
- characters = []
- last_kana = None # Used for ー; っ or ッ; ん or ン
- last_char = None # Used for small kana combos
- for char in string:
- # Full-width Latin
- if ord(char) >= 0xff11 and ord(char) <= 0xff5e:
- if last_kana == 'sokuon':
- raise ValueError("Sokuon cannot precede Latin characters.")
-
- char = chr(ord(char) - 0xff11 + 0x31)
- characters.append(char)
-
- last_kana = None
-
- # Small vowel kana
- elif char in _roomaji_small_kana:
- combo = last_char + char
- if combo in _roomaji_small_kana_combos:
- characters[-1] = _roomaji_small_kana_combos[combo]
-
- else:
- # If we don't know what it is... act dumb and treat it as a
- # full-size vowel. Better than bailing, and seems to occur a
- # lot, e.g. ピィ is "pii"
- characters.append(_roomaji_small_kana[char])
-
- # Youon
- elif char in _roomaji_youon:
- if last_kana[-1] != 'i' or last_kana == 'i':
- raise ValueError("Youon must follow an -i sound.")
-
- # Drop the -i and append the ya/yu/yo sound
- new_sound = _roomaji_youon[char]
- if last_kana in ['shi', 'ji']:
- # Strip the y-
- new_char = last_kana[:-1] + new_sound[1:]
- else:
- new_char = last_kana[:-1] + new_sound
-
- characters[-1] = new_char
- last_kana = new_char
-
- # Sokuon
- elif char in (u'っ', u'ッ'):
- # Remember it and double the consonant next time around
- last_kana = 'sokuon'
-
- # Extended vowel or n
- elif char == u'ー':
- if last_kana[-1] not in vowels:
- raise ValueError(u"'ー' must follow by a vowel.")
- characters.append(last_kana[-1])
-
- last_kana = None
-
- # Regular ol' kana
- elif char in _roomaji_kana:
- kana = _roomaji_kana[char]
-
- if last_kana == 'sokuon':
- if kana[0] in vowels:
- raise ValueError("Sokuon cannot precede a vowel.")
-
- characters.append(kana[0])
- elif last_kana == 'n' and kana[0] in vowels:
- characters.append("'")
-
- characters.append(kana)
-
- last_kana = kana
-
- # Not Japanese?
+"""Provides `romanize()` for romanizing simple Japanese text.
+
+Also provides available romanizers in a dictionary keyed by language identifier.
+"""
+
+class Romanizer(object):
+ def __init__(self, parent=None, **tables):
+ """Create a Romanizer
+
+ parent: A LookupTables to base this one on
+ tables: Dicts that become the object's attributes. If a parent is given,
+ its tables are used, and updated with the given ones
+ """
+ self.parent = parent
+ if parent:
+ self.tables = parent.tables
+ for name, table in tables.items():
+ # Take a copy -- don't want to clobber the parent's tables
+ self.tables[name] = dict(self.tables[name])
+ self.tables[name].update(table)
else:
- if last_kana == 'sokuon':
- raise ValueError("Sokuon must be followed by another kana.")
-
- characters.append(char)
-
- last_kana = None
-
- last_char = char
-
-
- if last_kana == 'sokuon':
- raise ValueError("Sokuon cannot be the last character.")
-
- return ''.join(characters)
+ self.tables = tables
+
+ for name, table in self.tables.items():
+ setattr(self, name, table)
+
+ def romanize(self, string):
+ """Convert a string of kana to roomaji."""
+
+ vowels = ['a', 'e', 'i', 'o', 'u', 'y']
+
+ characters = []
+ last_kana = None # Used for ー; っ or ッ; ん or ン
+ last_char = None # Used for small kana combos
+ for char in string:
+ # Full-width Latin
+ if 0xff01 <= ord(char) <= 0xff5e:
+ if last_kana == 'sokuon':
+ raise ValueError("Sokuon cannot precede Latin characters.")
+
+ # XXX Real Unicode decomposition would be nicer
+ char = chr(ord(char) - 0xff01 + 0x21)
+ characters.append(char)
+
+ last_kana = None
+
+ # Small vowel kana
+ elif char in self.roomaji_small_kana:
+ combo = last_char + char
+ if combo in self.roomaji_small_kana_combos:
+ characters[-1] = self.roomaji_small_kana_combos[combo]
+
+ else:
+ # If we don't know what it is... act dumb and treat it as a
+ # full-size vowel. Better than bailing, and seems to occur a
+ # lot, e.g. ピィ is "pii"
+ characters.append(self.roomaji_small_kana[char])
+
+ last_kana = self.roomaji_small_kana[char]
+
+ # Youon
+ elif char in self.roomaji_youon:
+ if not last_kana or last_kana[-1] != 'i' or last_kana == 'i':
+ raise ValueError("Youon must follow an -i sound.")
+
+ # Drop the -i and append the ya/yu/yo sound
+ new_sound = self.roomaji_youon[char]
+ if last_kana in self.y_drop:
+ # Strip the y-
+ new_char = self.y_drop[last_kana] + new_sound[1:]
+ else:
+ new_char = last_kana[:-1] + new_sound
+
+ characters[-1] = new_char
+ last_kana = new_char
+
+ # Sokuon
+ elif char in (u'っ', u'ッ'):
+ # Remember it and double the consonant next time around
+ last_kana = 'sokuon'
+
+ # Extended vowel or n
+ elif char == u'ー':
+ if last_kana[-1] not in vowels:
+ raise ValueError(u"'ー' must follow by a vowel.")
+ if last_kana[-1] in self.lengthened_vowels:
+ characters[-1] = characters[-1][:-1]
+ characters.append(self.lengthened_vowels[last_kana[-1]])
+ else:
+ characters.append(last_kana[-1])
+
+ last_kana = None
+
+ # Regular ol' kana
+ elif char in self.roomaji_kana:
+ kana = self.roomaji_kana[char]
+
+ if last_kana == 'sokuon':
+ if kana[0] in vowels:
+ raise ValueError("Sokuon cannot precede a vowel.")
+
+ characters.append(kana[0])
+ elif last_kana == 'n' and kana[0] in vowels:
+ characters.append("'")
+
+ # Special characters fo doubled kana
+ if kana[0] in self.lengthened_vowels and characters and kana == characters[-1][-1]:
+ kana = self.lengthened_vowels[kana[0]]
+ characters[-1] = characters[-1][:-1]
+
+ characters.append(kana)
+
+ last_kana = kana
+
+ # Not Japanese?
+ else:
+ if last_kana == 'sokuon':
+ raise ValueError("Sokuon must be followed by another kana.")
+
+ characters.append(char)
+
+ last_kana = None
+
+ last_char = char
+
+
+ if last_kana == 'sokuon':
+ raise ValueError("Sokuon cannot be the last character.")
+
+ return unicode(''.join(characters))
+
+
+romanizers = dict()
+
+romanizers['en'] = Romanizer(
+ roomaji_kana={
+ # Hiragana
+ u'あ': 'a', u'い': 'i', u'う': 'u', u'え': 'e', u'お': 'o',
+ u'か': 'ka', u'き': 'ki', u'く': 'ku', u'け': 'ke', u'こ': 'ko',
+ u'さ': 'sa', u'し': 'shi', u'す': 'su', u'せ': 'se', u'そ': 'so',
+ u'た': 'ta', u'ち': 'chi', u'つ': 'tsu', u'て': 'te', u'と': 'to',
+ u'な': 'na', u'に': 'ni', u'ぬ': 'nu', u'ね': 'ne', u'の': 'no',
+ u'は': 'ha', u'ひ': 'hi', u'ふ': 'fu', u'へ': 'he', u'ほ': 'ho',
+ u'ま': 'ma', u'み': 'mi', u'む': 'mu', u'め': 'me', u'も': 'mo',
+ u'や': 'ya', u'ゆ': 'yu', u'よ': 'yo',
+ u'ら': 'ra', u'り': 'ri', u'る': 'ru', u'れ': 're', u'ろ': 'ro',
+ u'わ': 'wa', u'ゐ': 'wi', u'ゑ': 'we', u'を': 'wo',
+ u'ん': 'n',
+ u'が': 'ga', u'ぎ': 'gi', u'ぐ': 'gu', u'げ': 'ge', u'ご': 'go',
+ u'ざ': 'za', u'じ': 'ji', u'ず': 'zu', u'ぜ': 'ze', u'ぞ': 'zo',
+ u'だ': 'da', u'ぢ': 'ji', u'づ': 'dzu', u'で': 'de', u'ど': 'do',
+ u'ば': 'ba', u'び': 'bi', u'ぶ': 'bu', u'べ': 'be', u'ぼ': 'bo',
+ u'ぱ': 'pa', u'ぴ': 'pi', u'ぷ': 'pu', u'ぺ': 'pe', u'ぽ': 'po',
+
+ # Katakana
+ u'ア': 'a', u'イ': 'i', u'ウ': 'u', u'エ': 'e', u'オ': 'o',
+ u'カ': 'ka', u'キ': 'ki', u'ク': 'ku', u'ケ': 'ke', u'コ': 'ko',
+ u'サ': 'sa', u'シ': 'shi', u'ス': 'su', u'セ': 'se', u'ソ': 'so',
+ u'タ': 'ta', u'チ': 'chi', u'ツ': 'tsu', u'テ': 'te', u'ト': 'to',
+ u'ナ': 'na', u'ニ': 'ni', u'ヌ': 'nu', u'ネ': 'ne', u'ノ': 'no',
+ u'ハ': 'ha', u'ヒ': 'hi', u'フ': 'fu', u'ヘ': 'he', u'ホ': 'ho',
+ u'マ': 'ma', u'ミ': 'mi', u'ム': 'mu', u'メ': 'me', u'モ': 'mo',
+ u'ヤ': 'ya', u'ユ': 'yu', u'ヨ': 'yo',
+ u'ラ': 'ra', u'リ': 'ri', u'ル': 'ru', u'レ': 're', u'ロ': 'ro',
+ u'ワ': 'wa', u'ヰ': 'wi', u'ヱ': 'we', u'ヲ': 'wo',
+ u'ン': 'n',
+ u'ガ': 'ga', u'ギ': 'gi', u'グ': 'gu', u'ゲ': 'ge', u'ゴ': 'go',
+ u'ザ': 'za', u'ジ': 'ji', u'ズ': 'zu', u'ゼ': 'ze', u'ゾ': 'zo',
+ u'ダ': 'da', u'ヂ': 'ji', u'ヅ': 'dzu', u'デ': 'de', u'ド': 'do',
+ u'バ': 'ba', u'ビ': 'bi', u'ブ': 'bu', u'ベ': 'be', u'ボ': 'bo',
+ u'パ': 'pa', u'ピ': 'pi', u'プ': 'pu', u'ペ': 'pe', u'ポ': 'po',
+ u'ヴ': 'vu',
+ },
+
+ roomaji_youon={
+ # Hiragana
+ u'ゃ': 'ya', u'ゅ': 'yu', u'ょ': 'yo',
+
+ # Katakana
+ u'ャ': 'ya', u'ュ': 'yu', u'ョ': 'yo',
+ },
+
+ # XXX If romanize() ever handles hiragana, it will need to make sure that the
+ # preceding character was a katakana
+ # This does not include every small kana combination, but should include every
+ # one used in a Pokémon name. An exhaustive list would be.. very long
+ roomaji_small_kana={
+ u'ァ': 'a', u'ィ': 'i', u'ゥ': 'u', u'ェ': 'e', u'ォ': 'o',
+ },
+ roomaji_small_kana_combos={
+ # These are, by the way, fairly arbitrary. "shi xi" to mean "sy" is
+ # particularly weird, but it seems to be what GF intends
+
+ # Simple vowel replacement
+ u'ウィ': 'wi', u'ウゥ': 'wu', u'ウェ': 'we', u'ウォ': 'wo',
+ u'ヴァ': 'va', u'ヴィ': 'vi', u'ヴェ': 've', u'ヴォ': 'vo',
+ u'チェ': 'che',
+ u'シェ': 'she',
+ u'ジェ': 'je',
+ u'テァ': 'tha', u'ティ': 'ti', u'テゥ': 'thu', u'テェ': 'tye', u'テォ': 'tho',
+ u'デァ': 'dha', u'ディ': 'di', u'デゥ': 'dhu', u'デェ': 'dye', u'デォ': 'dho',
+ u'ファ': 'fa', u'フィ': 'fi', u'ホゥ': 'hu', u'フェ': 'fe', u'フォ': 'fo',
+
+ # Not so much
+ u'シィ': 'sy',
+ u'ミィ': 'my',
+ u'ビィ': 'by',
+ u'ピィ': 'py',
+ },
+ lengthened_vowels={},
+ y_drop={'chi': 'ch', 'shi': 'sh', 'ji': 'j'},
+)
+
+romanizers['cs'] = Romanizer(parent=romanizers['en'],
+ roomaji_kana={
+ u'し': u'ši', u'ち': u'či', u'つ': u'cu',
+ u'や': u'ja', u'ゆ': u'ju', u'よ': u'jo',
+ u'じ': u'dži', u'ぢ': u'dži',
+ u'シ': u'ši', u'チ': u'či', u'ツ': u'cu',
+ u'ヤ': u'ja', u'ユ': u'ju', u'ヨ': 'jo',
+ u'ジ': u'dži', u'ヂ': u'dži',
+ },
+ roomaji_youon={
+ u'ゃ': 'ja', u'ゅ': 'ju', u'ょ': 'jo',
+ u'ャ': 'ja', u'ュ': 'ju', u'ョ': 'jo',
+ },
+ roomaji_small_kana_combos={
+ u'チェ': u'če', u'シェ': u'še', u'ジェ': u'dže',
+ u'テェ': u'tje', u'デェ': u'dje',
+ u'シィ': u'sí', u'ミィ': u'mí', u'ビィ': u'bí', u'ピィ': u'pí',
+ },
+ lengthened_vowels={'a': u'á', 'e': u'é', 'i': u'í', 'o': u'ó', 'u': u'ú'},
+ y_drop={u'či': u'č', u'ši': u'š', u'dži': u'dž', u'ni': u'ňj'},
+)
+
+def romanize(string, lang='en'):
+ """Convert a string of kana to roomaji."""
+
+ # Get the correct romanizer; fall back to English
+ romanizer = romanizers.get(lang, 'en')
+
+ # Romanize away!
+ return romanizer.romanize(string)
projects / zzz-pokedex.git / blobdiff