nuna

$ time curl -Lso - http://bit.ly/ye8vZA | zcat | ruby -rtext -e 'w=ARGF.read.split(/\n/);p %w(インターネト プログラミングル 東強都 任人堂 東京特許許許可局 マロオブラザーズ イーサネッット コソトローラ).map{|i|w.sort_by{|j|Text::Levenshtein.distance(i,j)}[0]}'
["インターネット", "プログラミング", "東都", "任天堂", "東京特許許可局", "マリオブラザーズ", "イーサネット", "コントローラ"]

real	14m13.030s
user	13m28.858s
sys	0m5.232s

nuna

class FactoryGirl::TestHelper
  include ActionDispatch::TestProcess

  def self.fixture_file_upload(*args)
    self.new.fixture_file_upload(*args)
  end

  def self.fixture_path
    File.join(File.dirname(__FILE__) + '/fixtures/')
  end

nuna

#!/usr/bin/ruby

require 'find'
require 'fileutils'

dir = ARGV.shift

Find.find(dir) do |f|
  if File.file?(f) and /20111123.*\.xls$/ =~ f
    FileUtils.mv(f, f.sub(/20111123/, '20111124'), { :noop => false, :verbose => true })

nuna

# まず dry run
$ find . -name thumnail.png | ruby -rfileutils -ne '$_.chomp!; FileUtils.mv($_, $_.sub(/thum/, "thumb"), {:noop => true, :verbose => true})'

# 本当に実行
$ find . -name thumnail.png | ruby -rfileutils -ne '$_.chomp!; FileUtils.mv($_, $_.sub(/thum/, "thumb"), {:noop => false, :verbose => false})'

nuna

$ irb
ruby-1.8.7-p352 :001 > str = 'a'
 => "a" 
ruby-1.8.7-p352 :002 > str + 'b'
 => "ab" 
ruby-1.8.7-p352 :003 > p str                                                          
"a"
 => nil 
ruby-1.8.7-p352 :004 > class String
ruby-1.8.7-p352 :005?>   def +(other)                                                 

nuna

$ irb-ruby-1.9.2-p290
ruby-1.9.2-p290 :001 > RUBY_VERSION
 => "1.9.2"
ruby-1.9.2-p290 :002 > File.read('test.png').encoding
 => #<Encoding:UTF-8> 
ruby-1.9.2-p290 :003 >  image = File.open('test.png', 'r:ascii-8bit'){|f| f.read}
<snip>
ruby-1.9.2-p290 :004 > image.encoding                                                   
 => #<Encoding:ASCII-8BIT>

nuna

$ file test.png 
test.png: PNG image data, 22 x 13, 16-bit grayscale, non-interlaced
$ md5sum test.png 
c6db60c696981f908324d3365e0836c0  test.png

# base64 encoding with ruby 1.8.7
$ irb-ruby-1.8.7-p334
ruby-1.8.7-p334 :001 > RUBY_VERSION
 => "1.8.7" 
ruby-1.8.7-p334 :002 > b64 = [File.read('test.png')].pack('m')

nuna

#!/usr/bin/ruby

Person = Struct.new(:name, :age)
jo = Person.new("Jo", 15)
meg = Person.new("Meg", 16)
beth = Person.new("Beth", 10)
amy = Person.new("Amy", 7)
sisters = [jo, meg, beth, amy]
sisters.each{|person| puts person.name }
#=> Jo

nuna

Index: ruby-1.9.2-p290/tool/rbinstall.rb
===================================================================
--- ruby-1.9.2-p290.orig/tool/rbinstall.rb
+++ ruby-1.9.2-p290/tool/rbinstall.rb
@@ -491,38 +491,6 @@
   end
 end
 
-install?(:ext, :comm, :gem) do
-  directories = []

nuna

#!/usr/bin/ruby19
# -*- coding: utf-8 -*-

require 'mongo'

connection = Mongo::Connection.new
db = connection.db('apache-log')
logs = db.collection('log')

map =<<'_FUNC_'