Extract Names and Emails Address

extract_emails_names.rb

# http://zadasnotes.blogspot.ca/2012/04/extracting-names-and-email-addresses.html
# first last <email1@example.com>
# {:name => "First Last", :email => "email1@example.com"}
# john.smith@example.com
# {:name => "John Smith", :email => "john.smith@example.com"}
# mary@example.com
# {:name => "Mary", :email => "mary@example.com"}

def names_and_emails_from_multiple_addresses(emails)
   addresses = emails.split(',')
   result = Array.new
   addresses.each do |address|
     next if address.blank?
     matches = address.strip.scan(/(\w[^<\>]*)<(\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b)\>\z|\A<!--?((\b[A-Z0-9._%+-]+)@[A-Z0-9.-]+\.[A-Z]{2,4}\b)-->?\z/i)
     if matches[0] && matches[0][1]
       email = matches[0][1]
       name = matches[0][0]
     elsif matches[0] && matches[0][2]
       email = matches[0][2]
       name = matches [0][3]
     end
     if email.blank? || name.blank?
       return nil
     else
       result << {:email => email.downcase.strip, :name => name.gsub(/\./, ' ').titleize.strip}
     end
   end
   return result
end