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#
# This module is a collection of named_scope for time column.
# Requires MySQL to work because of usage of MySQL functions.
# But you can easly replace that part to work with another databases.
#
# Example
#
#   class Article < ActiveRecord::Base
#     include TimeScopes[:created_at]
#   end

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# This rack app overrides http method by __method=xxx query.
#
# Example
#
#   link_to 'Destroy', post_path(@post, :__method => :delete)
class RequestMethodOverrider
  HTTP_METHODS = %w(GET HEAD PUT POST DELETE OPTIONS)
  HTTP_METHOD_OVERRIDE_KEY = "__method".freeze

  def initialize(app)

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module Daemons
  class Base
    include SSH

    attr_accessor :server

    delegate :logger, :address, :to => :server

    class << self
      def inherited(klass)

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#!/usr/bin/env ruby

a = [1,2,3,4]
a.each { |x| a.delete(x) }
#=> [2,4]

a = [1,2,3,4]
a.each { |x| a -= [x] }
#=> []

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#!/usr/bin/env Rscript

# 統計データがなかったので、お正月番組に触発されてテーブルクロス引きでコップが
# ずれた距離を測りました。コップの中の水の容量は
#   (x1, x2,..., x5) = (0, 50,.., 200)
# です。それぞれの容量で５回ずつ測定。単位はcmとccです。

x1 <- c(1.5, 2.2, 2.4, 2.2, 2.7)
x2 <- c(1.8, 1.6, 1.9, 1.6, 1.6)
x3 <- c(1.7, 2.1, 1.6, 1.5, 2.0)

shouichi

#!/usr/bin/env ruby

module Teacher
  def self.included(model)
    model.instance_eval do
      extend ClassMethods
      include InstanceMethods
    end
  end

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; This is from http://www.learningclojure.com/2009/09/fractal-tree.html
(import '(javax.swing JFrame JPanel )
        '(java.awt Color Graphics Graphics2D))

(defn draw-tree [#^Graphics g2d angle x y length branch-angle depth]
  (if (> depth 0)
    (let [new-x (- x (* length (Math/sin (Math/toRadians angle))))
          new-y (- y (*  length (Math/cos (Math/toRadians angle))))
          new-length (fn [] (* length (+ 0.75 (rand 0.1))))
          new-angle  (fn [op] (op angle (* branch-angle (+ 0.95 (rand)))))]

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module Maybe
  class NullObject
    def initialize
      @origin = caller.first
    end 

    def __null_origin__
      @origin
    end 

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/**
 * Builder pattern example from Effective Java.
 */
public final class NutritionFacts {
  private final int servingSize;
  private final int servings;
  private final int calories;
  private final int fat;
  private final int sodium;
  private final int carbohydrate;

shouichi

*.png
*.eps