rklemme

class Visitor
  def traverse(enum)
    enum.each do |node|
      visit node
    end
    self
  end

  def visit(node)
    node.class.ancestors.each do |cl|

rklemme

require 'set'

# information about a single line
LineInfo = Struct.new :file_name, :lineno, :line

# comparison data
FileData = Struct.new :file_a, :file_b

# read all words from first file and store in a Set
words = File.foreach(ARGV.shift).map {|l| l.chomp!}.to_set.freeze

rklemme

#! ruby19

require 'thread'

Thread.abort_on_exception = true

def log(msg)
  printf "%-30p %s\n", Thread.current, msg
end

rklemme

class HexNum < Numeric

  # Create a new instance from an int or String.
  def initialize(val)
    case val
    when String
      @i = parse_string(val)
      @s = val.frozen? ? val : val.dup.freeze
    when Numeric
      @i = val.to_i

rklemme

#! ruby19

require 'benchmark'

REP = 10
BS = 1024

files = []

at_exit do

rklemme

#! ruby19

ADDR = %r{[-.\w]+@[-.\w]+}
email = DATA.read.freeze

# 1. Java style

subst = {}

puts email.gsub(ADDR) {|match|

rklemme

#! ruby19

DirDfs = Struct.new :root, :state_file do

  def self.resume(state_file)
    File.open(state_file, "rb") do |io|
      Marshal.load(io)
    end
  end

rklemme

#! ruby19

require 'pp'

Converter = Struct.new :root, :converted do

  def convert
    @stack = []
    self.converted = {}
    dfs(root)

rklemme

#! ruby19

require 'date'

class EndlessEnum
  include Enumerable

  def initialize(x, method = :succ)
    @x = x
    @method = method

rklemme

# This class works as a proxy for an instance
# and presents it as Hash.
class InstanceHash
  include Enumerable

  def initialize(obj, default_val = nil, &default_proc)
    @obj = obj
    @default = default_val
    @default_proc = default_proc || lambda {|h,k| @default}
  end