Module: E164

Defined in:
lib/e164.rb

Constant Summary collapse

ValidFormat = 
/^\+([\d]{1,3})([\d]{1,14})$/
Identifiers = 
['+','011']
DefaultIdentifier = 
'+'
DefaultCountryCode = 
'1'

Class Method Summary collapse

Class Method Details

.e164_clean(num) ⇒ Object 



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# File 'lib/e164.rb', line 24

def self.e164_clean(num)
  num.scan(/^(?:#{Identifiers.map{|i| Regexp.escape(i) }.join('|')})|[\d]/)
end

.join_country_code(num) ⇒ Object 



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# File 'lib/e164.rb', line 28

def self.join_country_code(num)
  potentials = (1..3).map {|l| num[0,l].join}
  country_code = potentials.map {|x| CountryCodes[x] ? x : nil}.compact.first

  unless country_code
    country_code = DefaultCountryCode
    num.unshift(country_code)
  end
  
  [num.shift(country_code.length).join, *num]
end

.join_national_destination_code(num) ⇒ Object 



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# File 'lib/e164.rb', line 40

def self.join_national_destination_code(num)
  country = CountryCodes[num[0]]
  
  case (destination_codes = country[:national_destination_codes])
  when Integer
    destination_code_length = destination_codes
  when Hash
    potentials = destination_codes[:range].map {|l| num[1,l].join}
    destination_code = potentials.map {|x| destination_codes[x] ? x : nil}.compact.first
    destination_code_length = (destination_code && destination_code.length) || destination_codes[:default]
  end
  
  [num.shift, num.shift(destination_code_length).join, *num]
end

.normalize(num) ⇒ Object 



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# File 'lib/e164.rb', line 10

def self.normalize(num)
  parse(num).unshift(DefaultIdentifier).join
end

.parse(num) ⇒ Object 



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# File 'lib/e164.rb', line 14

def self.parse(num)
  num = e164_clean(num)
  identifier = Identifiers.include?(num.first) ? num.shift : nil
  
  num = (identifier || num.join.start_with?(DefaultCountryCode)) ? join_country_code(num) : num.unshift(DefaultCountryCode)
  num = join_national_destination_code(num)
  
  [num.shift,num.shift,num.join]
end