class GoogleFinanceCurrencyConverter - google_finance_currency

Public Class Methods

new(params={}) click to toggle source

# File lib/google_finance_currency_converter.rb, line 4
def initialize(params={})
  @from = params[:from]
  @to = params[:to]
  @amount = params[:amount]
  @amount = 1 if @amount == nil
  raise "Same code" if @from == @to
end

Public Instance Methods

result() click to toggle source

# File lib/google_finance_currency_converter.rb, line 12
def result
  return 0 if @amount == 0
  parse_response(request)
end

Private Instance Methods

parse_response(response) click to toggle source

# File lib/google_finance_currency_converter.rb, line 22
def parse_response(response)
  scanned_result = response.scan(/<span class=bld>([^.]+(?:\.(?:\d+))?)/)
  raise "Result not found" if scanned_result.empty?
  scanned_result[0][0].to_f
end

request() click to toggle source

# File lib/google_finance_currency_converter.rb, line 18
def request
  open("http://www.google.com/finance/converter?a=#{@amount}&from=#{@from}&to=#{@to}").read
end