Class: NumbersInWords::Fraction

Inherits:
Object
  • Object
show all
Defined in:
lib/numbers_in_words/fraction.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(denominator:, numerator: 1, attributes: nil) ⇒ Fraction

Returns a new instance of Fraction.



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# File 'lib/numbers_in_words/fraction.rb', line 15

def initialize(denominator:, numerator: 1, attributes: nil)
  @denominator = denominator
  @numerator = numerator
  @attributes = attributes || NumbersInWords::ExceptionalNumbers::DEFINITIONS[denominator] || {}
end

Instance Attribute Details

#attributes ⇒ Object (readonly)

Returns the value of attribute attributes.



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# File 'lib/numbers_in_words/fraction.rb', line 5

def attributes
  @attributes
end

#denominator ⇒ Object (readonly)

Returns the value of attribute denominator.



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# File 'lib/numbers_in_words/fraction.rb', line 5

def denominator
  @denominator
end

#numerator ⇒ Object (readonly)

Returns the value of attribute numerator.



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# File 'lib/numbers_in_words/fraction.rb', line 5

def numerator
  @numerator
end

Class Method Details

.in_words(that) ⇒ Object 



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# File 'lib/numbers_in_words/fraction.rb', line 7

def self.in_words(that)
  r = that.rationalize(EPSILON)

  NumbersInWords
    .fraction(denominator: r.denominator, numerator: r.numerator)
    .in_words
end

Instance Method Details

#fraction ⇒ Object 



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# File 'lib/numbers_in_words/fraction.rb', line 40

def fraction
  if denominator == Float::INFINITY
    # We've reached the limits of ruby's number system
    # by the time we get to a googolplex (10 ** (10 ** 100))
    return pluralize? ? 'infinitieths' : 'infinitieth'
  end

  pluralize? ? pluralized_fraction : singular_fraction
end

#in_words ⇒ Object 



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# File 'lib/numbers_in_words/fraction.rb', line 32

def in_words
  NumbersInWords.in_words(numerator) + ' ' + fraction
end

#lookup_keys ⇒ Object 



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# File 'lib/numbers_in_words/fraction.rb', line 21

def lookup_keys
  key = in_words
  key2 = strip_punctuation(key.split(' ')).join(' ')

  key3 = "a #{key}"
  key4 = "an #{key}"
  key5 = "a #{key2}"
  key6 = "an #{key2}"
  [key, key2, key3, key4, key5, key6].uniq
end

#ordinal ⇒ Object 



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# File 'lib/numbers_in_words/fraction.rb', line 36

def ordinal
  pluralize? ? pluralized_ordinal_in_words : singular_ordinal_in_words
end