Class: JapaneseNumbers::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/japanese_numbers/parser.rb

Constant Summary collapse

DELIMITERS = 
{
  '万' => 10000,
  '億' => 100000000,
  '兆' => 1000000000000,
  '京' => 10000000000000000,
}

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.parse(str) ⇒ Object 



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# File 'lib/japanese_numbers/parser.rb', line 9

def self.parse(str)
  JIntParser.new.parse(str)
end

Instance Method Details

#parse(str) ⇒ Object 



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# File 'lib/japanese_numbers/parser.rb', line 13

def parse(str)
  parts = split_to_parts(str)
  res = parts.inject(0) do |sum, part|
    sum + part[0].to_i * (DELIMITERS[part[1]] || 1)
  end
  res
end

#split_to_parts(str) ⇒ Object 



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# File 'lib/japanese_numbers/parser.rb', line 21

def split_to_parts(str)
  parts = []
  loop do
    coefficient, unit, remains = str.partition(Regexp.union(DELIMITERS.keys))
    parts.push([coefficient, unit])
    str = remains
    break if str == ""
  end
  parts
end