Module: Kirillica::Passport

Defined in:
lib/kirillica/passport.rb

Constant Summary collapse

TABLE = 
{
  'а' => 'a',
  'б' => 'b',
  'в' => 'v',
  'г' => 'g',
  'д' => 'd',
  'е' => ['e', 'ye'],
  'ё' => ['e', 'ye'],
  'ж' => 'zh',
  'з' => 'z',
  'и' => 'i',
  'й' => 'y',
  'к' => 'k',
  'л' => 'l',
  'м' => 'm',
  'н' => 'n',
  'о' => 'o',
  'п' => 'p',
  'р' => 'r',
  'с' => 's',
  'т' => 't',
  'у' => 'u',
  'ф' => 'f',
  'х' => 'kh',
  'ц' => 'ts',
  'ч' => 'ch',
  'ш' => 'sh',
  'щ' => 'shch',
  'ъ' => '``',
  'ы' => 'y',
  'ь' => '`',
  'э' => 'e`',
  'ю' => 'yu',
  'я' => 'ya',
}
DIPHTHONGS = 
{
  'ай' => 'ay',
  'ей' => ['ey', 'yey'],
  'ий' => 'iy',
  'ой' => 'oy',
  'уй' => 'uy',
  'ый' => 'yy',
  'эй' => 'ey',
  'юй' => 'yuy'
}
WINDOW = 
3

Class Method Summary collapse

Class Method Details

.revert!(phrase) ⇒ Object

invert transliteration



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# File 'lib/kirillica/passport.rb', line 82

def self.revert!(phrase)
  # TODO
end

.translit(phrase = '') ⇒ Object

transliteration



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# File 'lib/kirillica/passport.rb', line 53

def self.translit(phrase='')
  return '' if phrase.empty?
  translitted_phrase = ''

  chars = phrase.downcase.chars

  while chars.any?
    window = 2
    if diphthong = DIPHTHONGS[chars.take(window).join]
      c = diphthong.is_a?(Array) ? diphthong.first : diphthong
      translitted_phrase << c
      chars.drop(window)
    else
      translitted_char = TABLE[chars.first]

      if translitted_char.nil?
        translitted_phrase << chars.first
      else
        c = translitted_char.is_a?(Array) ? translitted_char.first : translitted_char
        translitted_phrase << c
      end
      chars = chars.drop(1)
    end
  end

  translitted_phrase
end