Module: Num2words::Locales::JA

Defined in:
lib/num2words/locales/ja.rb

Constant Summary collapse

ONES_MASC = 
I18n.t("num2words.ones_masc", locale: :ja)
ONES_FEM = 
I18n.t("num2words.ones_fem", locale: :ja)
TEENS = 
I18n.t("num2words.teens", locale: :ja)
TENS = 
I18n.t("num2words.tens", locale: :ja)
HUNDREDS = 
I18n.t("num2words.hundreds", locale: :ja)
SCALES = 
I18n.t("num2words.scales", locale: :ja)
FRACTIONS = 
I18n.t("num2words.fractions", locale: :ja)
GRAMMAR = 
I18n.t("num2words.grammar", locale: :ja)
DATE = 
I18n.t("num2words.date", locale: :ja)
DATE_TEMPLATE = 
I18n.t("num2words.date.template", locale: :ja)
TIME = 
I18n.t("num2words.time", locale: :ja)
TIME_TEMPLATE = 
I18n.t("num2words.time.template", locale: :ja)
DATETIME_TEMPLATE = 
I18n.t("num2words.datetime.template", locale: :ja)
ORDINALS = 
I18n.t("num2words.numbers.ordinals", locale: :ja)
THOUSANDS = 
["", "せん", "にせん", "さんぜん", "よんせん", "ごせん", "ろくせん", "ななせん", "はっせん", "きゅうせん"].freeze
LARGE_SCALES = 
["", "まん", "おく", "ちょう", "けい"].freeze

Class Method Summary collapse

Class Method Details

.currency_major_feminine?(_currency) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/num2words/locales/ja.rb', line 90

def currency_major_feminine?(_currency)
  false
end

.currency_minor_feminine?(_currency) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/num2words/locales/ja.rb', line 94

def currency_minor_feminine?(_currency)
  false
end

.currency_number_words(number, _currency, unit:) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 98

def currency_number_words(number, _currency, unit:)
  integer_to_words(number)
end

.date_day(day, format: :default, date_case: :default) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 118

def date_day(day, format: :default, date_case: :default)
  integer_to_words(day)
end

.date_year(year, format: :default) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 122

def date_year(year, format: :default)
  integer_to_words(year)
end

.decimal_fraction_words(fraction_string) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 71

def decimal_fraction_words(fraction_string)
  fraction_string.chars.map { |digit| ONES_MASC[digit.to_i] }.join
end

.decimal_separator_word ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 67

def decimal_separator_word
  GRAMMAR[:decimal_separator] || "てん"
end

.default_fraction_word ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 63

def default_fraction_word
  GRAMMAR[:default_fraction]
end

.fraction_joiner(joiner) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 59

def fraction_joiner(joiner)
  joiner.to_sym == :and ? "と" : GRAMMAR[:conjunction]
end

.integer_to_words(number, feminine: false) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 28

def integer_to_words(number, feminine: false)
  integer_value = Integer(number)
  negative = integer_value.negative?
  integer_value = integer_value.abs

  return ONES_MASC[0] if integer_value.zero?

  groups = integer_value.to_s
                        .chars.reverse.each_slice(4).map(&:reverse)
                        .map(&:join).map!(&:to_i).reverse

  words = groups.each_with_index.filter_map do |group_value, index|
    next if group_value.zero?

    scale_index = groups.size - index - 1
    "#{under_ten_thousand(group_value)}#{LARGE_SCALES.fetch(scale_index, '')}"
  end.join

  negative ? "#{minus_word}#{words}" : words
end

.join_currency_parts(parts) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 102

def join_currency_parts(parts)
  parts.join
end

.join_decimal_words(words) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 75

def join_decimal_words(words)
  words.compact.reject(&:empty?).join
end

.join_fraction_words(words) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 79

def join_fraction_words(words)
  sign_word, integer_words, conjunction_word, numerator_words, denominator_words = words
  numerator_words = "" if denominator_words.to_s.end_with?(numerator_words.to_s)

  [sign_word, integer_words, conjunction_word, denominator_words, numerator_words].compact.reject(&:empty?).join
end

.join_time_words(number_words, unit_words) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 114

def join_time_words(number_words, unit_words)
  "#{number_words}#{unit_words}"
end

.minus_word ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 55

def minus_word
  GRAMMAR[:minus]
end

.pluralize(number, singular, few, _plural) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 86

def pluralize(number, singular, few, _plural)
  number == 1 ? singular : few
end

.time_number_words(number, unit:) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 110

def time_number_words(number, unit:)
  integer_to_words(number)
end

.time_unit_feminine?(_unit) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/num2words/locales/ja.rb', line 106

def time_unit_feminine?(_unit)
  false
end

.triple_to_words(number, scale_idx, feminine: false) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 49

def triple_to_words(number, scale_idx, feminine: false)
  words = under_ten_thousand(number)
  scale = LARGE_SCALES[scale_idx].to_s
  ["#{words}#{scale}"]
end

.under_hundred(number) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 139

def under_hundred(number)
  return "" if number.zero?
  return TEENS[number - 10] if number.between?(10, 19)

  tens = number / 10
  ones = number % 10

  [TENS[tens], ones.positive? ? ONES_MASC[ones] : nil].compact.reject(&:empty?).join
end

.under_ten_thousand(number) ⇒ Object 



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# File 'lib/num2words/locales/ja.rb', line 126

def under_ten_thousand(number)
  thousands = number / 1000
  remainder = number % 1000
  hundreds = remainder / 100
  rest = remainder % 100

  [
    THOUSANDS[thousands],
    HUNDREDS[hundreds],
    under_hundred(rest)
  ].compact.reject(&:empty?).join
end