delete.rb

#-*- coding: utf-8 -*-
require 'net/http'
require 'uri'
require 'json'

Net::HTTP.version_1_2

def chirp(id, pass)
  uri  = URI('http://chirpstream.twitter.com/2b/user.json')
  buf = ""
  http = Net::HTTP.start(uri.host, uri.port)
  req = Net::HTTP::Get.new(uri.request_uri)
  req.basic_auth id, pass

  http.request(req) do |res|
    res.read_body do |body|
      buf += body
      while i = buf.index("\r\n") # nil is same as false in ruby, so use "while" and remove "nil?" method
        str = buf.slice!(0, i + 2).chomp
        yield JSON.parse(str) unless str.size.zero?
      end
    end
  end
end

s = [] #Array.new is *migurushi-*

if $0 == __FILE__
  chirp('Twitter ID', 'PASS') do |h|
    s << h
    if h['delete']
      puts (did = h['delete']['status']['id'].to_s) # If you want String, use to_s method.
      s.each do |tweet|
        ssid = tweet['id'].to_s # Same as line30
        puts "#{tweet['user']['screen_name']} has deleted '#{tweet['text']}'" if did == ssid # () isn't needed
      end
      puts "#{h['user']['screen_name']}: #{h['text']}" if h['text']
    end
  end
end