instiki/vendor/rails/activesupport/lib/active_support/core_ext/string/conversions.rb

require 'parsedate'

module ActiveSupport #:nodoc:
  module CoreExtensions #:nodoc:
    module String #:nodoc:
      # Converting strings to other objects
      module Conversions
        # 'a'.ord == 'a'[0] for Ruby 1.9 forward compatibility.
        def ord
          self[0]
        end if RUBY_VERSION < '1.9'

        # Form can be either :utc (default) or :local.
        def to_time(form = :utc)
          ::Time.send("#{form}_time", *ParseDate.parsedate(self)[0..5].map {|arg| arg || 0})
        end

        def to_date
          ::Date.new(*ParseDate.parsedate(self)[0..2])
        end

        def to_datetime
          ::DateTime.civil(*ParseDate.parsedate(self)[0..5].map {|arg| arg || 0} << 0)
        end
      end
    end
  end
end