Clean mobile number

README.md

Example usage

ruby clean.rb 09121001234 9121001234 989121001234 00989121001234 09001001234

clean.rb

#!/usr/bin/env ruby
# Example usage:
#
#     ruby clean.rb 9121001234
#
module Mobile
  PREFIXES = {
    "901"=>"mtn",
    "902"=>"mtn",
    "930"=>"mtn",
    "933"=>"mtn",
    "934"=>"mtn",
    "935"=>"mtn",
    "936"=>"mtn",
    "937"=>"mtn",
    "938"=>"mtn",
    "939"=>"mtn",
    "932"=>"taliya",
    "910"=>"mci",
    "911"=>"mci",
    "912"=>"mci",
    "913"=>"mci",
    "914"=>"mci",
    "915"=>"mci",
    "916"=>"mci",
    "917"=>"mci",
    "918"=>"mci",
    "919"=>"mci",
    "940"=>"mci",
    "920"=>"rightel",
    "921"=>"rightel",
  }.freeze

  RE_MOBILE = /^0(9\d{2})(\d{7})$/
  RE_COUNTRY = /^(\+|00)?98/

  # Try to clean the number
  def self.clean(number)
    return number if valid?(number)
    number = number.sub(RE_COUNTRY, '').strip
    number = "0#{number}" if number.chr != '0'
    fail "invalid_mobile_number_format" unless valid?(number)
    number
  end

  # Check if number is valid
  def self.valid?(number)
    RE_MOBILE =~ number
    PREFIXES.key?($1)
  end
end

if ARGV.none?
  puts "Usage: ruby #{__FILE__} [<mobile>...]"
  exit 1
end

ARGV.each do |mobile|
  begin
    puts Mobile.clean(mobile)
  rescue Exception => e
    puts "#{e}: #{mobile}"
  end
end