name generator

name_gen.rb

def char_by_order(ord)
  case ord
		when 0..25		# lower case alphabet	
			offset = 'a'.ord
		when 26..51	# upper case alphabet
			offset = 'A'.ord
			ord -= 26
		else			# number
			offset = '0'.ord
			ord -= 52
	end

	return (ord + offset).chr
end

def name_by_order(ord, len)
	name = ""	

	for	i in 0..len-1
		name += char_by_order( (ord % (62)) )
		ord /= 62
	end
	
	return name.reverse
end