ivaravko

Problem 1: Stacks and Bags

Our goal is to make it so that we have a stack equality operator that is both a stand-in replacement for bag's equality operator and does the right thing when dealing with a stack operation. Liskov suggests that you could define something like Bag#bag_equal?, which Stack must expose and implement to match Bag's behavior, and that you could add a second stack_equal? method for doing ordered comparisons. However, this feels like a kludge to me, and so I tried to take another angle, following a pattern found in Ruby's Numeric class (i.e. its integer? and float? methods):

require "set"

class Bag  
  def ==(other)
    [Set.new(data), limit] == [Set.new(other.send(:data)), other.send(:limit)]

ivaravko

var page = new WebPage(),
    address, output, size;

  address = "http://www.metachunk.com/";
  width = 1024; height = 600;
  output = "./screenshots/wat-"+width+"X"+height+".png";


  page.viewportSize = { width: width, height: height };
  if (phantom.args.length === 3 && phantom.args[1].substr(-4) === ".pdf") {

ivaravko

<?php

namespace CHH;

trait MetaObject
{
    protected static $metaClass;

    static function setMetaClass(MetaClass $metaClass)
    {

ivaravko

from selenium.common.exceptions import NoSuchElementException, TimeoutException


class DomHelper(object):
    driver = None
    waiter = None

    def open_page(self, url):
        self.driver.get(url)

ivaravko

# coding: utf-8
require 'sinatra'
set server: 'thin', connections: []

get '/' do
  halt erb(:login) unless params[:user]
  erb :chat, locals: { user: params[:user].gsub(/\W/, '') }
end

get '/stream', provides: 'text/event-stream' do

ivaravko

#
# Get development tools installed
#
sudo yum install -y git cvs zlib-devel
sudo yum groupinstall -y "Development Tools"

#
# Install RVM
#
bash < <(curl -s https://rvm.beginrescueend.com/install/rvm)

ivaravko

require 'rubygems'
require 'selenium-webdriver'
require 'pp'

dir = Dir.mktmpdir("modal-dialog")

htmls = DATA.read.scan(/--- (.+?) ---\n(.+?)(?=---|\z)/m)
htmls.each do |name, content|
  File.open(File.join(dir, name), "w") { |io| io << content}
end

ivaravko

require 'selenium-webdriver'

ctrl = Selenium::WebDriver::Platform.os == :macosx ? :command : :control
browser = Selenium::WebDriver.for :chrome

begin
  browser.get "data:text/html;content-type=utf-8,#{URI.escape DATA.read}"
  receiver = browser.find_element(:id => "receiver")
  receiver.send_keys 'foo'
  receiver.send_keys [ctrl, 'a'], :backspace

ivaravko

require 'selenium-webdriver'

browser = Selenium::WebDriver.for :firefox

begin
  browser.get "data:text/html;content-type=utf-8,#{URI.escape DATA.read}"
  opts = browser.find_elements(:tag_name => "option")
  opts[0].click
  opts[1].click
  

ivaravko

#encoding: utf-8

require 'selenium-webdriver'

browser = Selenium::WebDriver.for :firefox

begin
  browser.get "data:text/html;content-type=utf-8,#{URI.escape DATA.read}"
  frame = browser.find_element(:tag_name => "iframe")
  p frame