DataWraith

class TrieNode

  def initialize
    @sub_tries = {}
    @end_of_word = false
  end                   

  def insert(input)
    to_insert = input

DataWraith

# Ruby implementation of the Alleged RC4 Cipher

class ArcFourCipher
  def initialize(key)
    @s = (0..255).to_a

    s2 = []
    key_arr = key.bytes.to_a
    0.upto(255) do |i|
      s2 << key_arr[i % key.bytesize]

DataWraith

#!/bin/zsh

# hash_dir.zsh recursively hashes the contents of the current directory.
#
# It is meant for use with file collections that are occasionally added to, and
# will preserve older hashes if files are removed for some reason (for example,
# moved to a different storage medium).
#
# To avoid recalculating hashes every time it is run, it caches file hashes by
# full path, size and mtime.

DataWraith

# Langton Ant in ruby-processing

class LangtonAnt < Processing::App

  WHITE = -1
  BLACK = -16777216

  DefaultMovements = {
    :up    => { WHITE => :right, BLACK => :left  },
    :down  => { WHITE => :left,  BLACK => :right },

DataWraith

#!/bin/zsh

# This script deletes the least-recently used (LRU) files from Polipo's cache
# once the partition it is on has less than $min_disk_free Bytes of free space
# left.
#
# It's meant to be used as a cron job, and it's a little more complicated than
# it needs to be, because I wrote it mostly to learn zsh.

local cache_dir="/var/cache/polipo/"

DataWraith

class Link

  def initialize(to, weight)
    @to = to
    @weight = weight
  end

  def propagate(activation)
    puts "  propagating #{activation} * #{@weight} = #{@weight * activation} to #{@to.name}"
    puts "    old activation: #{@to.activation}"

DataWraith

class Fixnum

  ROMAN_CONVERSION = [
    [1000, 'M' ],
    [900,  'CM'],
    [500,  'D' ],
    [400,  'CD'],
    [100,  'C' ],
    [90,   'XC'],
    [50,   'L' ],

DataWraith

#/usr/bin/env ruby

require 'securerandom'

ENTROPY_BITS = 256

# Generate a password with an entropy of #{ENTROPY_BITS} bits by encoding a large number
# from the secure random number generator as Base62. Base64 is avoided because some websites
# reject passwords that contain non-alphanumeric characters. This also makes copy&paste easy
# through automatic word-boundary detection (on doubleclick) in many application.

DataWraith

Creative Commons Legal Code

CC0 1.0 Universal

    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM

DataWraith

# This entry is based on Prediction by Partial Matching, a method that is used
# in data compression.

import random
from collections import defaultdict

CONTEXT_SIZE=32

if input == "":
    # Initialize data structure