cawel

VALUE rb_ary_each(ary)
VALUE ary;
{
  long i;
  for (i=0; ilen; i++) {
    rb_yield(RARRAY(ary)->ptr[i]);
  }
  return ary;
}

cawel

class Base
  def initialize
    @@var = 'base' 
  end

  def base_set_var  
    @@var = 'base' 
  end

  def base_print_var

cawel

def process(values)
  result = Proc.new { return values.max }.call
  result * 100
end

puts process( [1,2,3] )

cawel

def process(values)
  result = lambda { return values.max }.call
  result * 100
end

puts process( [1,2,3] )

cawel

y = false
z = 1
x = y or z

def z arg
  arg * 10
end

puts x

cawel

#!/usr/bin/env ruby
require 'open-uri'
require "rexml/document"
require 'rexml/xpath'

feed_link = "http://feeds.feedburner.com/37signals/beMH"
title, published_date = "", ""

TITLE_PATH = "//item//title"
DATE_PATH = "//item/pubDate"

cawel

#!/usr/bin/env ruby
require 'rubygems'
require 'open-uri'
require 'feed-normalizer'

def every seconds, &block
  while true
    yield
    sleep seconds
  end

cawel

require 'rubygems'
require 'scrubyt'

HASH_TERM = "leadscon"

data = Scrubyt::Extractor.define do

  fetch 'http://www.hashtweeps.com/'
  fill_textfield "term", HASH_TERM
  submit

cawel

# using properly-named methods indicate the intention
# as opposed to having the logic inlined

class RemoteCache < Remote
  def deploy!
    update_repository_cache
    copy_repository_cache
  end
end

cawel

# using a block ensures the file is closed when done

File.open("temp_file") do |file|
  file.write(data)
end