shunsugai

class Bar
  class << self
    def self.bar(method)
      define_method(method) do
        puts "Bar.#{method} called."
      end
    end

    bar :foo
    bar :baz

shunsugai

class Foo
  def self.foo(method)
    define_method(method) do
      puts "Foo##{method} called."
    end
  end

  foo :bar
  foo :baz
end

shunsugai

#encoding: utf-8

class String
  def make_ngram(n)
    ary = self.split(//)
    ngram_ary = []
    p = ary.length
    for i in 0..(p - n) do
      ngram_ary << ary[i...(i + n)]
    end