Module: Num2words::Locales::DE

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

Constant Summary collapse

ONES_MASC = 
I18n.t("num2words.ones_masc", locale: :de)
ONES_FEM = 
I18n.t("num2words.ones_fem", locale: :de)
TEENS = 
I18n.t("num2words.teens", locale: :de)
TENS = 
I18n.t("num2words.tens", locale: :de)
HUNDREDS = 
I18n.t("num2words.hundreds", locale: :de)
SCALES = 
I18n.t("num2words.scales", locale: :de)
FRACTIONS = 
I18n.t("num2words.fractions", locale: :de)
GRAMMAR = 
I18n.t("num2words.grammar", locale: :de)
DATE = 
I18n.t("num2words.date", locale: :de)
DATE_TEMPLATE = 
I18n.t("num2words.date.template", locale: :de)
TIME = 
I18n.t("num2words.time", locale: :de)
TIME_TEMPLATE = 
I18n.t("num2words.time.template", locale: :de)
DATETIME_TEMPLATE = 
I18n.t("num2words.datetime.template", locale: :de)
ORDINALS = 
I18n.t("num2words.numbers.ordinals", locale: :de)

Class Method Summary collapse

Class Method Details

.cardinal(number, feminine: false) ⇒ Object 



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# File 'lib/num2words/locales/de.rb', line 89

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

  return (feminine ? ONES_FEM[0] : ONES_MASC[0]) if integer_value.zero?

  groups = integer_value.to_s
                        .chars.reverse.each_slice(3).map(&:reverse)
                        .map(&:join).map!(&:to_i).reverse

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

    scale_idx = groups.size - index - 1
    group_feminine = feminine_group?(scale_idx) || (feminine && scale_idx.zero?)
    group_words = triple_to_words(group_value, scale_idx, feminine: group_feminine)
    group_words.shift if scale_idx == 1 && group_value == 1
    words.concat(group_words)
  end

  words.unshift(minus_word) if negative
  words.join(" ")
end

.currency_major_feminine?(currency) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/num2words/locales/de.rb', line 50

def currency_major_feminine?(currency)
  %i[UAH CZK SEK NOK DKK INR IDR PKR].include?(currency)
end

.currency_minor_feminine?(currency) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/num2words/locales/de.rb', line 54

def currency_minor_feminine?(currency)
  false
end

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



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# File 'lib/num2words/locales/de.rb', line 58

def currency_number_words(number, currency, unit:)
  return cardinal(number, feminine: currency_major_feminine?(currency)) unless Integer(number) == 1

  unit == :major && currency_major_feminine?(currency) ? "eine" : "ein"
end

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



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# File 'lib/num2words/locales/de.rb', line 72

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

.date_year(year, format:) ⇒ Object 



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# File 'lib/num2words/locales/de.rb', line 76

def date_year(year, format:)
  cardinal(year).delete(" ")
end

.default_fraction_word ⇒ Object 



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# File 'lib/num2words/locales/de.rb', line 42

def default_fraction_word
  GRAMMAR[:default_fraction]
end

.feminine_group?(scale_idx) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/num2words/locales/de.rb', line 26

def feminine_group?(scale_idx)
  scale_idx >= 2
end

.fraction_joiner(joiner) ⇒ Object 



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# File 'lib/num2words/locales/de.rb', line 38

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

.fraction_numerator_feminine? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/num2words/locales/de.rb', line 30

def fraction_numerator_feminine?
  false
end

.integer_to_words(number, feminine: false) ⇒ Object 



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# File 'lib/num2words/locales/de.rb', line 46

def integer_to_words(number, feminine: false)
  cardinal(number, feminine: feminine)
end

.minus_word ⇒ Object 



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# File 'lib/num2words/locales/de.rb', line 34

def minus_word
  GRAMMAR[:minus]
end

.ordinal(value, format, gender: :masculine) ⇒ Object 



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# File 'lib/num2words/locales/de.rb', line 80

def ordinal(value, format, gender: :masculine)
  ordinals = ORDINALS[format] || ORDINALS[:nominative]
  gender_data = ordinals[gender] || ordinals[:masculine]

  return gender_data[value - 1] if value.between?(1, gender_data.length)

  cardinal(value)
end

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



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

def pluralize(number, singular, few, plural)
  number.abs == 1 ? singular : plural
end

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



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# File 'lib/num2words/locales/de.rb', line 64

def triple_to_words(number, scale_idx, feminine: false)
  return [] if number.zero?

  words = [under_thousand(number, feminine: feminine)]
  words << pluralize(number, *SCALES[scale_idx]) unless scale_idx.zero?
  words
end

.under_hundred(number, feminine: false) ⇒ Object 



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# File 'lib/num2words/locales/de.rb', line 127

def under_hundred(number, feminine: false)
  return feminine ? ONES_FEM[number] : ONES_MASC[number] if number < 10
  return TEENS[number - 10] if number < 20
  return TENS[number / 10] if (number % 10).zero?

  ones = number % 10
  tens = number / 10
  ones_word = ones == 1 ? "ein" : ONES_MASC[ones]

  "#{ones_word}und#{TENS[tens]}"
end

.under_thousand(number, feminine: false) ⇒ Object 



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# File 'lib/num2words/locales/de.rb', line 115

def under_thousand(number, feminine: false)
  return under_hundred(number, feminine: feminine) if number < 100

  hundreds = number / 100
  rest = number % 100
  hundred_words = hundreds == 1 ? "einhundert" : "#{under_hundred(hundreds)}hundert"

  return hundred_words if rest.zero?

  "#{hundred_words}#{under_hundred(rest, feminine: feminine)}"
end