Module: Scrapetor::Money

Defined in:
lib/scrapetor/money.rb

Constant Summary collapse

NUMERIC = 
/-?\d[\d.,]*/.freeze
THOUSAND_GROUPED_COMMAS = 
/\A-?\d{1,3}(?:,\d{3})+\z/.freeze
THOUSAND_GROUPED_DOTS = 
/\A-?\d{1,3}(?:\.\d{3})+\z/.freeze

Class Method Summary collapse

Class Method Details

.parse(s) ⇒ Object 



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# File 'lib/scrapetor/money.rb', line 9

def self.parse(s)
  return nil if s.nil?
  m = s.to_s.match(NUMERIC)
  return nil unless m
  num = m[0]
  dots = num.count(".")
  commas = num.count(",")
  if dots > 0 && commas > 0
    if num.rindex(".") > num.rindex(",")
      num = num.delete(",")
    else
      num = num.delete(".").tr(",", ".")
    end
  elsif commas > 0
    num = THOUSAND_GROUPED_COMMAS.match?(num) ? num.delete(",") : num.tr(",", ".")
  elsif dots > 1
    num = THOUSAND_GROUPED_DOTS.match?(num) ? num.delete(".") : num
  end
  num.to_f
end