# File lib/rudy/utils.rb, line 266
266:     def strand( len=8, safe=true )
267:        chars = ("a".."z").to_a + ("0".."9").to_a
268:        chars.delete_if { |v| %w(i l o 1 0).member?(v) } if safe
269:        str = ""
270:        1.upto(len) { |i| str << chars[rand(chars.size-1)] }
271:        str
272:     end