kjwierenga

  // Available variables:
  // - Machine
  // - interpret
  // - assign
  // - send
  // - sendParent
  // - spawn
  // - raise
  // - actions

kjwierenga

#!/usr/bin/env ruby
text = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum."

freqs = text.downcase.tr(".\n ",'').chars.inject(Hash.new(0)) { |freq,c|
 freq[c] += 1; freq }.to_a.sort{ |a,b| a.last <=> b.last}

kjwierenga

#!/bin/sh

#########################################################################
#									#
#	MySQL performance tuning primer script				#
#	Writen by: Matthew Montgomery <mmontgomery@mysql.com>		#
#	Inspired by: MySQLARd (http://gert.sos.be/demo/mysqlar/)	#
#	Version: 1.5-r5		Released: 2009-11-22			#
#	Licenced under GPLv2                                            #
#									#

kjwierenga

# From http://www.algolist.com/code/java/Dijkstra%27s_algorithm
# Here you can find the algorithm in Java, C, C++, Python, Ruby and PHP.
#
# You need pqueue: gem install pqueue
#
require 'pqueue'

class Algorithm

  INFINITY = 1 << 32

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class Configuration
  class AppServer
    attr_accessor :port, :admin_password
  end
  
  def initialize
    @app_server = AppServer.new
  end
  
  attr_accessor :tail_logs, :max_connections, :admin_password, :app_server

kjwierenga

# My final solution to 'Closures' exercise at the
# Scottish Ruby Conference - Ruby Tutorial
# by Chad Fowler and Keavy McMinn.

# The returning keyword/proc is not defined in Ruby 1.8. Define it here
#
def returning(value, &block)
  yield
  value
end

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def returning(value, &block)
  yield
  value
end

def counter(start, inc)
  lambda do
    returning start do
      start += inc
    end

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def counter(start, inc)
  lambda do
    current = start
    start += inc
    current
  end
end

result = counter(10, 2)

kjwierenga

Getting up and running with OS X, Textmate & Scheme
===================================================

SCHEME
======

I ran across two implementations of Scheme which appear to work well with OS X.
mit-scheme & PLT Scheme.

I was able to install mit-scheme from darwin ports ( sudo port install mit-scheme)

kjwierenga

> date -d-1day
Mon Sep  6 09:08:43 CEST 2010
> date -d-1day +%Y%m
201009