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

rklemme

class Module
  def attr_with_default(name, default = nil, &init)
    n = "@#{name}"

    define_method name do
      instance_variable_get(n) || (init ? init.call(self) : default)
    end

    attr_writer name
  end

rklemme

18:00:04 Temp$ allruby sc.rb
CYGWIN_NT-5.1 padrklemme1 1.7.5(0.225/5/3) 2010-04-12 19:07 i686 Cygwin
========================================
ruby 1.8.7 (2008-08-11 patchlevel 72) [i386-cygwin]
Rehearsal ----------------------------------------------
scan         2.766000   0.000000   2.766000 (  2.786000)
scan ++      4.656000   0.000000   4.656000 (  4.668000)
scan re      2.688000   0.000000   2.688000 (  2.696000)
scan re ++   4.531000   0.000000   4.531000 (  4.547000)
while        1.094000   0.000000   1.094000 (  1.135000)

rklemme

11:01:47 Temp$ ./nested_each.rb
[["foo\n", "bar", "dummy"], ["another\nline", "ends", "now\nor not?"]]

Now the test...

"foo\n"
"bar"
"dummy"
"another\n"
"line"

rklemme

#!/bin/env ruby19

Num = Struct.new :pre, :val do
  def succ
    self.class.new pre, val.succ
  end

  def to_s; "#{pre}#{val}" end
  def inspect; "#{self.class.name}(#{self})" end

rklemme

#!/bin/env ruby19

require 'nokogiri'

# Nokogiri should have this as well
REPL =  {
  '&lt;' => '<',
  '&le;' => '<=',
  '&gt;' => '>',
  '&ge;' => '>=',

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require 'pp'

Node = Struct.new :value, :parent, :children do
  def initialize(value = nil, parent = nil)
    self.value = value
    self.children = []
    yield self if block_given?
  end

  def add(child)

rklemme

package enc;

public class EncodingTest {

  public static void main(String[] args) {
    boolean lastDefined = !Character.isDefined(0);
    int lastStart = -1;

    for (int i = Character.MIN_CODE_POINT; i <= Character.MAX_CODE_POINT; ++i) {
      final boolean def = Character.isDefined(i);

rklemme

# test whether the given element is a month label
def is_label(o)
  String === o
end

# exchange values at positions
def swap(arr, i, j)
  # not using parrallel assignment since
  # we want to avoid all the fancy stuff
  x = arr[i]