apeiros

def that_method(parameter)
  array_list = ['Thing', 'Another Thing']

  array_list.include? parameter
end

apeiros

require "openssl"
require 'digest/sha2'
require 'securerandom'

# Automatically upgradable encryption provider
module Encryption
  class InvalidData < StandardError
  end
  class InvalidPattern < InvalidData
    def initialize(version)

apeiros

### The stuff to encrypt
data = 'hello world!'
password = 'test123'

# Note: all 3 implementations are supposed to do exactly the same


### Raw OpenSSL
# Decisions, decisions, decisions...
cipher        = 'AES-256-CBC' # which ciphers are not trivially broken?

apeiros

module Jacob
  class Model
    class ColumnDsl
      # [snip]

      def integer(name, null: false, default: nil, size: nil, primary_key: false, auto_increment: false, unique: false)
        # [snip]
      end

      # [snip]

apeiros

class Unreachable < StandardError
end

module Kernel
  module_function def unreachable(msg="This place in the code should never have been reached")
    raise Unreachable, msg
  end
end

apeiros

require 'webrick'
include WEBrick
s = HTTPServer.new(
  :Port         => 9951,
  :DocumentRoot => File.expand_path(File.dirname(__FILE__)) 
)
s.config[:MimeTypes].update({
  "text"      => "text/plain",
})
trap("INT") { s.stop }

apeiros

pg.exec_params("CREATE TABLE foos (data bytea)")
para = Array.new(256).pack("C*") # => "\x00\x01\x02\x03\x04\x05…\xFE\xFF"
pg.exec_params("INSERT INTO foos ($1)", [para])
pg.exec_params("SELECT * FROM foos").to_a # => [{"data"=>"\\x"}]

apeiros

module Lib
  def has_color
    define_method(:color) do 'red' end
  end
end

class Car
  extend Lib
  has_color
end

apeiros

class String
  def segments
    segments = split(/\./)
    while segments.size > 1
      yield(segments.join('.'))
      segments.pop
    end
    yield('.')
  end
end

apeiros

#!/usr/bin/env ruby

# hackery to simulate a file
require 'stringio'
RealFile = File
Object.send(:remove_const, :File)
File = StringIO
def StringIO.open(data); x=new(data);x.rewind; x; end
# end of hackery