Class: NumbersInWords::ToWord

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(that) ⇒ ToWord

Returns a new instance of ToWord.



14
15
16
 
# File 'lib/numbers_in_words/to_word.rb', line 14

def initialize(that)
  @that = that
end

Instance Attribute Details

#that ⇒ Object (readonly)

Returns the value of attribute that.



12
13
14
 
# File 'lib/numbers_in_words/to_word.rb', line 12

def that
  @that
end

Instance Method Details

#as_fraction(fraction) ⇒ Object 



36
37
38
 
# File 'lib/numbers_in_words/to_word.rb', line 36

def as_fraction(fraction)
  return Fraction.in_words(that) if fraction
end

#decimals ⇒ Object 



40
41
42
43
44
45
46
47
48
49
 
# File 'lib/numbers_in_words/to_word.rb', line 40

def decimals
  int, decimals = NumberGroup.new(@that).split_decimals
  return unless int

  out = NumbersInWords.in_words(int) + ' point '
  decimals.each do |decimal|
    out << NumbersInWords.in_words(decimal.to_i) + ' '
  end
  out.strip
end

#handle_exceptional_numbers ⇒ Object 



78
79
80
81
82
 
# File 'lib/numbers_in_words/to_word.rb', line 78

def handle_exceptional_numbers
  return unless @that.is_a?(Integer)

  NumbersInWords.exceptional_numbers.lookup(@that)
end

#handle_tens(number) ⇒ Object 



61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/numbers_in_words/to_word.rb', line 61

def handle_tens(number)
  output = ''

  tens = (number / 10).round * 10 # write the tens

  output += NumbersInWords.lookup(tens) # e.g. eighty

  digit = number - tens # write the digits

  unless digit.zero?
    join = number < 100 ? '-' : ' '
    output << join + NumbersInWords.in_words(digit)
  end

  output
end

#in_words(fraction: false) ⇒ Object 



28
29
30
31
32
33
34
 
# File 'lib/numbers_in_words/to_word.rb', line 28

def in_words(fraction: false)
  as_fraction(fraction) ||
    handle_exceptional_numbers ||
    decimals ||
    negative ||
    output
end

#negative ⇒ Object 



22
23
24
25
26
 
# File 'lib/numbers_in_words/to_word.rb', line 22

def negative
  return unless to_i.negative?

  'minus ' + NumbersInWords.in_words(-@that)
end

#output ⇒ Object 



51
52
53
54
55
56
57
58
59
 
# File 'lib/numbers_in_words/to_word.rb', line 51

def output
  output = if to_i.to_s.length == 2 # 20-99
             handle_tens(to_i)
           else
             Writer.new(that).call # longer numbers
           end

  output.strip
end

#to_i ⇒ Object 



18
19
20
 
# File 'lib/numbers_in_words/to_word.rb', line 18

def to_i
  that.to_i
end