From: Petr Viktorin Date: Wed, 26 Jan 2011 01:14:42 +0000 (+0100) Subject: Add Czech romanization X-Git-Tag: veekun-promotions/2011041101~24^2 X-Git-Url: http://git.veekun.com/zzz-pokedex.git/commitdiff_plain/ed78ca15a08dbcb73847a94c4274be15c707fafe Add Czech romanization --- diff --git a/pokedex/roomaji.py b/pokedex/roomaji.py index e91c960..aa378ac 100644 --- a/pokedex/roomaji.py +++ b/pokedex/roomaji.py @@ -1,173 +1,244 @@ # encoding: utf8 -"""Provides `romanize()` for romanizing simple Japanese text.""" - -_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', -} - -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 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 _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]) - - last_kana = _roomaji_small_kana[char] - - # Youon - elif char in _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 = _roomaji_youon[char] - if last_kana in ['chi', '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 unicode(''.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) diff --git a/pokedex/tests/test_roomaji.py b/pokedex/tests/test_roomaji.py index 09dfe71..dc95afb 100644 --- a/pokedex/tests/test_roomaji.py +++ b/pokedex/tests/test_roomaji.py @@ -12,6 +12,7 @@ def test_roomaji(): # Elongated vowel (u'イーブイ', 'iibui'), (u'ホーホー', 'hoohoo'), + (u'ピカチュウ', u'pikachuu'), # Combined characters (u'ニャース', 'nyaasu'), @@ -28,3 +29,28 @@ def test_roomaji(): for kana, roomaji in tests: result = pokedex.roomaji.romanize(kana) assert_equal(result, roomaji, u"'%s' romanizes correctly" % roomaji) + +def test_roomaji_cs(): + tests = [ + (u'ヤミカラス', u'jamikarasu'), + + # Elongated vowel + (u'イーブイ', u'íbui'), + (u'ホーホー', u'hóhó'), + (u'ピカチュウ', u'pikačú'), + + # Combined characters + (u'ニャース', u'ňjásu'), + (u'ジャ', u'dža'), + (u'ぎゃくてん', u'gjakuten'), + (u'ウェザーボール', u'wezábóru'), + + # Special katakana combinations + (u'ラティアス', u'ratiasu'), + (u'ウィー', u'wí'), + (u'セレビィ', u'serebí'), + ] + + for kana, roomaji in tests: + result = pokedex.roomaji.romanize(kana, 'cs') + assert_equal(result, roomaji, u"'%s' romanizes correctly for Czech" % roomaji)