ruanwz

class Song
  def initialize
    @bottles = 99
  end
  
  def sing
    @bottles.downto(0) do |bottle|
      if bottle > 1
        puts "#{bottle} bottles of beer on the wall, #{bottle} bottles of beer."
        puts "Take one down and pass it around, #{bottle - 1} bottles of beer on the wall.\n"

ruanwz

reg2=/^[\w!#\$%&'*+\/=?`{|}~^-]+ #only allow to start with these symbols
      (?:\.[\w!#\$%&'*+\/=?`{|}~^-]+)* # the user name can contain dot
      @ # @ symbol
      (?:[a-zA-Z0-9-]+\.)+ # domain
      [a-zA-Z]{2,6}$ # the last part of domain
      /x # ignore spaces

reg=/(?<allow_char> [\w!#\$%&'*+\/=?`{|}~^-]+){0} #only allow to start with these symbols
     (?<script_tag> script){0}
      ^\g<allow_char>+

ruanwz

reg2=/^[\w!#\$%&'*+\/=?`{|}~^-]+ #only allow to start with these symbols
      (?:\.[\w!#\$%&'*+\/=?`{|}~^-]+)* # the user name can contain dot
      @ # @ symbol
      (?:[a-zA-Z0-9-]+\.)+ # domain
      [a-zA-Z]{2,6}$ # the last part of domain
      /x # ignore spaces

reg=/(?<allow_char> [\w!#\$%&'*+\/=?`{|}~^-]+){0} #only allow to start with these symbols
      ^(?<!\<script)(\g<allow_char>+)
      (?:\.\g<allow_char>)* # the user name can contain dot

ruanwz

require 'rubygems'
require 'twitter'

config = File.exists?("#{ENV['HOME']}/.twitter") ? YAML::load(open("#{ENV['HOME']}/.twitter")) : Hash.new
if config.empty?
  print "> what was the comsumer token twitter provided you with? "
  config['token'] = gets.chomp
  print "> what was the comsumer secret twitter provided you with? "
  config['secret'] = gets.chomp
  File.open( "#{ENV['HOME']}/.twitter", 'w' ) do |out|

ruanwz

require 'rubygems'
require 'gcal4ruby'
include GCal4Ruby
service = Service.new
service.authenticate("", "")
#2. Get Calendar List
# puts calendars = service.calendars
cals = Calendar.find(service, {:title => "RMU September Session 1"})
puts cals.first.to_xml
#event = Event.new(service, {:calendar => cal, :title => "Soccer Game", :start => Time.parse("12-06-2010 at 12:30 PM"),  :where => "Merry Playfields"})

ruanwz

Sinatra is designed to need friends
  no presets
  pure ruby
  rack-lover

Rack is the best friend
  Rack::Session::Cookie
  Rack::CommonLogger
  Rack::MethodOverride
rack-contrib

ruanwz

The following lines are the output of following command:
cucumber features > ~/gstore_features_output.txt


Feature: object
  As a google storeage api user
  I want to create objects in a bucket
  So that I can perform other operation on the objects

  Scenario: create an object in an empty bucket      # features/object.feature:6

ruanwz

[IO]^[BasicSocket], [BasicSocket]^[Socket], [BasicSocket]^[UNIXSocket],
[BasicSocket]^[IPSocket]
[IPSocket]^[UDPSocket],[UDPSocket]^[UDPServer]
[IPSocket]^[TCPSocket],[TCPSocket]^[TCPServer]
[UNIXSocket]^[UNIXServer],
[StandardError]^[SocketError]
[FFI::Struct]^[AddrInfo]
[FFI::Struct]^[SockAddr_In]
[FFI::Struct]^[SockAddr_Un]
[FFI::Struct]^[Servent]

ruanwz

Socket

[Document on ruby-doc.org] [ruby_doc]

Introduction

Ruby provides a standard library Socket for networking programming in lower layer, such as TCP and UDP. There are also other libraries for application layers like HTTP, FTP and TELNET, they are not included in this tutorial.

What is Socket

ruanwz

require "socket"  
echo_server = TCPServer.new('localhost', 2200)  
loop do  
  Thread.start(echo_server.accept) do |client|  
    puts "#{client.peeraddr[2]}:#{client.peeraddr[1]} is connected"
    loop do
      data = client.recvfrom( 20 )[0].chomp
      if data =="exit"
        client.puts "bye!"
        puts "#{client.peeraddr[2]}:#{client.peeraddr[1]} is disconnect"