Class: IBAN

Inherits:
Object
  • Object
show all
Defined in:
lib/iban.rb,
lib/iban/version.rb

Constant Summary collapse

VERSION = 
"0.1.0"

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(code) ⇒ IBAN

Returns a new instance of IBAN.



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# File 'lib/iban.rb', line 12

def initialize(code)
  @code = code.strip.gsub(/\s+/, '').upcase
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args) ⇒ Object (private) 



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# File 'lib/iban.rb', line 72

def method_missing(method_name, *args)
  respond_to?(method_name) ? bban_data[method_name] : super
end

Class Method Details

.specifications ⇒ Object 



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

def self.specifications
  @@specs ||= YAML.load_file(File.expand_path('iban/specs.yml', File.dirname(__FILE__)))
end

.valid?(code) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/iban.rb', line 8

def self.valid?(code)
  new(code).valid?
end

Instance Method Details

#bban ⇒ Object 



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# File 'lib/iban.rb', line 24

def bban
  @code[4..-1]
end

#check_digits ⇒ Object 



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# File 'lib/iban.rb', line 20

def check_digits
  @code[2..3]
end

#country_code ⇒ Object 



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# File 'lib/iban.rb', line 16

def country_code
  @code[0..1]
end

#respond_to?(method_name, include_private = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/iban.rb', line 58

def respond_to?(method_name, include_private=false)
  (bban_data && bban_data.names.include?(method_name.to_s)) || super
end

#to_i ⇒ Object 



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# File 'lib/iban.rb', line 28

def to_i
  "#{bban}#{country_code}#{check_digits}".each_byte.map do |byte|
    case byte
    when 48..57 then byte - 48 # 0..9
    when 65..90 then byte - 55 # A..Z
    else raise RuntimeError.new("Unexpected byte '#{byte}' in IBAN code '#{@code}'")
    end
  end.join.to_i
end

#to_s(formatted = false) ⇒ Object 



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# File 'lib/iban.rb', line 38

def to_s(formatted=false)
  formatted ? @code.gsub(/(.{4})/, '\1 ').strip : @code
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/iban.rb', line 42

def valid?
  valid_check_digits? && valid_length? && valid_bban?
end

#valid_bban? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/iban.rb', line 54

def valid_bban?
  !!bban_data
end

#valid_check_digits? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/iban.rb', line 46

def valid_check_digits?
  to_i % 97 == 1
end

#valid_length? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/iban.rb', line 50

def valid_length?
  !!specification && specification['length'] == @code.length
end