purplejacket’s gists

purplejacket / selenium_hello.rb

Created January 26, 2011 22:22

A Selenium "hello world" program to be run in Ruby

	require File.dirname(__FILE__) + '/../test_helper'
	require "selenium/client"

	class HelloTest < ActiveSupport::TestCase
	def setup
	@verification_errors = []
	@selenium = Selenium::Client::Driver.new \
	:host => "localhost",
	:port => 4444,
	:browser => "*safari",

purplejacket / main_controller.rb

Created February 11, 2011 23:17

attempt at returning a 500 error if the params hash has a nil value

	# Is this the proper way to detect whether any of the params has a nil value?
	# I think it's being superseded by the before_filter because I see
	# /Users/kaimiddleton/Sites/thundercat/vendor/plugins/fixie_whitelister/lib/white_list_helper.rb:34:in `strip_naughty_stuff'
	# when I hit the browser with, say, http://localhost:3000/?/

	class MainController < ApplicationController
	skip_before_filter :require_restrictive_access
	before_filter :main_sidebar, :only => [:index, :landing_page]

	def index

purplejacket / quine.php

Created February 15, 2011 23:12

A quine in PHP language

	<?
	# PHP Quine written by Ian Kjos - [email protected]
	$y = "function q(\$q) {
	\$q = str_replace('\\\\', '\\\\\\\\', \$q);
	\$q = str_replace('\$', '\\\\\$', \$q);
	\$q = str_replace('\\n', '\\\\n', \$q);
	\$q = str_replace('\"', '\\\\\"', \$q);
	return \$q;
	}

purplejacket / Picture1.rb

Created August 23, 2011 21:43

Picture class without S3 authentication

	class Ckeditor::Picture < Ckeditor::Asset
	has_attached_file :data,
	:url => "/ckeditor_assets/pictures/:id/:style_:basename.:extension",
	:path => ":rails_root/public/ckeditor_assets/" +
	"pictures/:id/:style_:basename.:extension",
	:styles => {:content => '800>', :thumb => '118x100#'}
	# etc....
	end

purplejacket / halting.js

Last active November 23, 2021 01:28

Fermat's last theorem - halting problem

	// Theory of computation: halting problem: will the following program ever halt?

	outer_loop:
	for (let bound=3; ; bound++)
	for (let n=3; n<=bound; n++)
	for (let a=1; a<=bound; a++)
	for (let b=1; b<=bound; b++)
	for (let c=1; c<=bound; c++)
	if (an + bn == c**n)
	break outer_loop;

purplejacket / Stack.java

Last active October 24, 2018 15:53

An implementation of a stack in java ... but with a bug in it

	import java.util.*;

	public class Stack {
	private Object[] elements;
	private int size = 0;

	public Stack(int initialCapacity) {
	this.elements = new Object[initialCapacity];
	}

purplejacket / Gull.cpp

Created May 1, 2014 01:43

Gull Chess version 3.0 by Vadim Demichev, released April 17, 2014

purplejacket / micromax.c

Created May 1, 2014 02:06

MicroMax v. 4.0, by Harm Geert Muller - a chess program in under 2000 characters of C code -- see http://home.hccnet.nl/h.g.muller/progress.html

	/***************************************************************************/
	/* micro-Max, */
	/* A chess program smaller than 2KB (of non-blank source), by H.G. Muller */
	/***************************************************************************/
	/* version 4.0 (1752 characters) features: */
	/* - recursive negamax search */
	/* - quiescence search with recaptures */
	/* - recapture extensions */
	/* - (internal) iterative deepening */
	/* - best-move-first 'sorting' */

purplejacket / apply.core.clj

Created April 1, 2015 23:53

The Clojure apply function

	(defn apply
	"Applies fn f to the argument list formed by prepending intervening arguments to args."
	{:added "1.0"
	:static true}
	([^clojure.lang.IFn f args]
	(. f (applyTo (seq args))))
	([^clojure.lang.IFn f x args]
	(. f (applyTo (list* x args))))
	([^clojure.lang.IFn f x y args]
	(. f (applyTo (list* x y args))))

purplejacket / css_positioning_divs.html

Created November 17, 2015 18:46

Learn CSS Positioning in Ten Steps

	<div id="example">
	<div id="div-before">
	<p>id = div-before</p>
	</div>
	<div id="div-1">
	<div id="div-1-padding">
	<p>id = div-1</p>
	<div id="div-1a">
	<p>id = div-1a</p>
	<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer pretium dui sit amet felis. Integer sit amet diam. Phasellus ultrices viverra velit.</p>

Kai Middleton purplejacket