Class: Fraction

Inherits:
Object
  • Object
show all
Defined in:
lib/fraction.rb,
ext/fraction/fraction.c

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#denominator ⇒ Object (readonly)

Returns the value of attribute denominator.



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# File 'lib/fraction.rb', line 4

def denominator
  @denominator
end

#error ⇒ Object (readonly)

Returns the value of attribute error.



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# File 'lib/fraction.rb', line 4

def error
  @error
end

#numerator ⇒ Object (readonly)

Returns the value of attribute numerator.



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# File 'lib/fraction.rb', line 4

def numerator
  @numerator
end

Instance Method Details

#to_html ⇒ Object 



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# File 'lib/fraction.rb', line 6

def to_html
  entity = case self.numerator

  when 1 then
    case self.denominator
    when 2 then "½"
    when 3 then "⅓"
    when 4 then "¼"
    when 5 then "⅕"
    when 6 then "⅙"
    when 8 then "⅛"
    end

  when 2 then
    case self.denominator
    when 3 then "⅔"
    when 5 then "⅖"
    end

  when 3 then
    case self.denominator
    when 4 then "¾"
    when 5 then "⅗"
    when 8 then "⅜"
    end

  when 4 then "⅘"

  when 5 then
    case self.denominator
    when 6 then "⅚"
    when 8 then "⅝"
    end
    
  when 7 then "⅞"
  end

  entity ||= "#{self.numerator}/#{self.denominator}"
  entity
end