Class: Ja::SoundIndex

Inherits:
Object
  • Object
show all
Defined in:
lib/ja/sound_index.rb

Constant Summary collapse

VOWEL = 
%w[A I U E O]
CONSONANT = 
%w[A K S T N H M Y R W G Z D B P]
LARGE = 
[
  'ア', 'イ', 'ウ', 'エ', 'オ', 'カ', 'キ', 'ク', 'ケ', 'コ', 
  'サ', 'シ', 'ス', 'セ', 'ソ', 'タ', 'チ', 'ツ', 'テ', 'ト', 
  'ナ', 'ニ', 'ヌ', 'ネ', 'ノ', 'ハ', 'ヒ', 'フ', 'ヘ', 'ホ', 
  'マ', 'ミ', 'ム', 'メ', 'モ', 'ヤ',  nil, 'ユ',  nil, 'ヨ', 
  'ラ', 'リ', 'ル', 'レ', 'ロ', 'ワ', 'ヰ', 'ヴ', 'ヱ', 'ヲ', 
  'ガ', 'ギ', 'グ', 'ゲ', 'ゴ', 'ザ', 'ジ', 'ズ', 'ゼ', 'ゾ', 
  'ダ', 'ヂ', 'ヅ', 'デ', 'ド', 'バ', 'ビ', 'ブ', 'ベ', 'ボ', 
  'パ', 'ピ', 'プ', 'ペ', 'ポ',
]
SMALL = 
[
  'ァ',  'ィ', 'ゥ', 'ェ', 'ォ', 'ャ',   nil, 'ュ',  nil, 'ョ',
  'ヮ'
]
SPECIAL = 
{'ッ' => '.', 'ー' => '-', 'ン' => 'N'}

Instance Method Summary collapse

Constructor Details

#initialize(mode) ⇒ SoundIndex

Returns a new instance of SoundIndex.



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# File 'lib/ja/sound_index.rb', line 22

def initialize(mode)
  @mode = mode
end

Instance Method Details

#consonant(text, with = []) ⇒ Object 



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# File 'lib/ja/sound_index.rb', line 42

def consonant(text, with=[])
  if !only_katakana?(text)
    raise ArgumentError, 'Error: first param must consist only of katakana.'
  end
  text = text.gsub(/([#{LARGE.join}])/u) {
    i = LARGE.index($1) - LARGE.index($1) % 5
    @mode == :ascii ? CONSONANT[i / 5] : LARGE[i]
  }
  text = text.gsub(/[#{SMALL.join}]/u, '')
  special(text, with)
end

#only_katakana?(text) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ja/sound_index.rb', line 26

def only_katakana?(text)
  text.match /^[#{LARGE.join}#{SMALL.join}#{SPECIAL.keys.join}]+$/u
end

#vowel(text, with = []) ⇒ Object 



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# File 'lib/ja/sound_index.rb', line 30

def vowel(text, with=[])
  if !only_katakana?(text)
    raise ArgumentError, 'Error: first param must consist only of katakana.'
  end
  text = text.gsub(/([#{LARGE.join}])([#{SMALL.join}])*/u) {
    map, snd = $2 ? [SMALL, $2] : [LARGE, $1]
	arr = @mode == :ascii ? VOWEL : LARGE
    arr[map.index(snd) % 5]
  }
  special(text, with)
end