jgn

# Force the underlying store for a Set to be an OrderedHash.
class OrderedSet < Set
  def initialize(enum = nil, &block)
    @hash ||= ActiveSupport::OrderedHash.new
    super
  end
end

jgn

# Memcache wrapping in a declarative fashion.
#
# Usage example:
#
#   class << self
#     extend Utils::MemoizableWithMC
#
#     def get_host_details(id)
#       select('host_first_name, host_last_name, host_email').find(id)
#     end

jgn

#!/usr/bin/env ruby
# http://en.wikipedia.org/wiki/RADIX-50
class String
  R50_CHARS = " ABCDEFGHIJKLMNOPQRSTUVWXYZ$.%0123456789"
  R50_LOOKUP = {}.tap { |h| String::R50_CHARS.split(//).each_with_index { |c, i| h[c] = i } }
  R50_CLEAN = /[[:upper:]|[:digit:]| |.|$|%]/
  def radix50
    [].tap do |r|
      self.upcase.scan(R50_CLEAN).inject([]) do |m, c|
        m << R50_LOOKUP[c]