gistfile1.rb

# Determine whether a string contains a Social Security number.
def has_ssn?(string)
  #check overall length
  if string.length < 11
    return false
  #check for match
  elsif string.match(/\d{3}(-)\d{2}(-)\d{4}/)
    return true
  else
    return false
  end
end

# Return the Social Security number from a string.
def grab_ssn(string)
  if has_ssn?(string)
    result = string.match(/\d{3}(-)\d{2}(-)\d{4}/)
    result = result.to_s
    return result
  else
    return nil
  end 
end

# Return all of the Social Security numbers from a string.
def grab_all_ssns(string)
  puts "The input is \"#{string}\""
  if has_ssn?(string)
    result = string.scan(/\d{3}./)
    puts "The match data is #{result}"
    matches_array = result.to_a
    puts "The grab result for multiple ssns is #{matches_array.inspect}"
    matches = matches_array.join(", ")
    puts "The string of matches is #{matches}"
    return matches 
  else
    puts "No ssn present"
    return nil
  end
end

# Obfuscate all of the Social Security numbers in a string. Example: XXX-XX-4430.
def hide_all_ssns(string)
end

# Ensure all of the Social Security numbers use dashes for delimiters.
# Example: 480.01.4430 and 480014430 would both be 480-01-4430.
def format_ssns(string)
end