abarringer

# $Id: dns_cache.rb 5040 2007-10-05 17:31:04Z francis $
#
#

require 'rubygems'
require 'eventmachine'
require 'resolv'


module EventMachine

igrigorik

# example for multi-fiber workers 

require "fiber"
require "eventmachine"

results = []
work = [:a, :b, :c]

EventMachine.run {
  Fiber.new do

andreasronge

require 'rubygems'
require 'neo4j'
include Neo4j

Transaction.new

# create some people
andreas = Node.new :name => 'andreas'
peter = Node.new :name => 'peter'
kalle = Node.new :name => 'kalle'

karmi

.DS_Store
*.csv
*.pdf

mrflip

votes CF 

"back in black" => { 201005211200 => '1', 201005201159 => '1', 201005201157 => '1',  201005011900 => '1', 201004190600 => '1' },
"black album"   => { 201005021800 => '1', 201005010600 => '1' },
"black star"    => { 201005011000 => '1' }

cached_counts CF

"back in black" => { 'cached_count' => 2, 'counted_until' => 201005011931 },
"black album"   => { 'cached_count' => 1, 'counted_until' => 201005010600 }

tail-recursive.rb

# First, I suppose you have ruby 1.9.1 or 1.9.2
# Open irb. Execute this:
# RubyVM::InstructionSequence.compile_option = { tailcall_optimization: true, trace_instruction: false }
# Note, RubyVM::InstructionSequence.compile_option() doesn't have item :trace_instruction, still, you need to specify it. WTF?
# Also, it doesn't work if you just put it to the script. Don't know why yet. Tell me (@rofh) if you know.

# Then open the file:
# require "./tail-recursive"
# Then execute function:
# fact(30000)

igrigorik

require "date"
require "time"


# converts base10 integers into NewBase60
def num_to_sxg(num=nil)
  sxg        = ""
  vocabulary = "0123456789ABCDEFGHJKLMNPQRSTUVWXYZ_abcdefghijkmnopqrstuvwxyz"

  return 0 if num.nil? || num.zero?

parse_delicious_xml.py

#!/usr/bin/env python
# encoding: utf-8
"""
parse_delicious_xml.py

First download your bookmarks and restrict to specific tags if desired:

$ curl --user 'username':'password' -o delicious.xml 'https://api.del.icio.us/v1/posts/all'

Extract and count most common domains:

dahlia

# 30 minutes Lisp in Ruby
# Hong Minhee <http://dahlia.kr/>
#
# This Lisp implementation does not provide a s-expression reader.
# Instead, it uses Ruby syntax like following code:
#
#     [:def, :factorial,
#       [:lambda, [:n],
#         [:if, [:"=", :n, 1],
#               1,

mnutt

Instrument Anything in Rails 3

With Rails 3.0 released a few weeks ago I've migrated a few apps and I'm constantly finding useful new improvements. One such improvement is the ability to log anything in the same way that Rails internally logs ActiveRecord and ActionView. By default Rails 3 logs look slightly spiffier than those produced by Rails 2.3: (notice the second line has been cleaned up)

Started GET "/" for 127.0.0.1 at Mon Sep 06 01:07:11 -0400 2010
  Processing by HomeController#index as HTML
  User Load (0.2ms)  SELECT `users`.* FROM `users` WHERE (`users`.`id` = 3) LIMIT 1
  CACHE (0.0ms)  SELECT `users`.* FROM `users` WHERE (`users`.`id` = 3) LIMIT 1

Rendered layouts/_nav.html.erb (363.4ms)