fj

Mozilla/5.0(iPad; U; CPU iPhone OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B314 Safari/531.21.10

fj

class Nanomachine
  class Nanoparticle
    def add(p)
      while more?
        p << self
    end
  end
end

# Ruby 1.9 includes nicer support for warnings that you didn't get in 1.8.

fj

# Given a constant's name of the form r = "One::Two::[...]::ThirtyFive",
# resolve its value.
sep = "::" # Doesn't appear that '::' is defined.
c = r.split(sep).inject(Object) { |memo, el| memo.const_get(el) }

# Usage:
module Foo
  module Bar
    Baz = 100
  end

fj

I'm trying to be diligent about checking my rake tasks with RSpec tests, but in the process of feeling my way around I seem to have hit a wall. I've got a really simple RSpec test that looks like this:

# ./test/meta_spec.rb
describe "Rake tasks" do
  require 'rake'
  
  before(:each) do
    @rake = Rake::Application.new
    @rake.load_rakefile  # => Error here!

Rake.application = @rake

fj

We couldn’t find that file to show.

fj

// Given an interface (IFactory<> in this example), find everything that
// implements the interface and put it in a map.
//
// Usage:
// public interface IFactory<T> { ... }
// public class AppleFactory : IFactory<Apple> { ... }
// public class BananaFactory : IFactory<Banana> { ... }
// public class ChocolateFactory : IFactory<Chocolate> { ... }
//
// var m = new FactoryManager();   // Automatically scans this assembly for suitable implementations

fj

    require 'tempfile'
    t = Tempfile.new('test-data')
    t.open
    t.sync = true
    t << "apples"
    t.puts "bananas"
    # prints "contents are [] (14 bytes)"
    puts "contents are [#{t.read}] (#{t.size} bytes)

fj

[johnf@genesis][2010/06/12|17:53:00]
[/tmp]> mkdir foo
[johnf@genesis][2010/06/12|17:53:36]
[/tmp]> cd foo

[johnf@genesis][2010/06/12|17:53:39]
[/tmp/foo]> git init
Initialized empty Git repository in /tmp/foo/.git/

[johnf@genesis][2010/06/12|17:53:40]

fj

diff --git a/scripts/cli b/scripts/cli
index b4cd70e..496d322 100644
--- a/scripts/cli
+++ b/scripts/cli
@@ -280,6 +280,7 @@ __rvm_parse_args() {
       ;;
 
       system|default)
+        echo "Reverting to predefined interpreter '${rvm_token}'."
         rvm_action=${rvm_action:-use}

fj

b = lambda { |e| e.kind_of?(Array) ? e.map(&b) : (e.nil? ? "" : e) }
# => #<Proc:0x0000000104d908@(irb):1 (lambda)> 

arr = [5, 6, 7, nil, [nil], [6, 8, nil], [[194, 48, nil], [nil]]]
# => [5, 6, 7, nil, [nil], [6, 8, nil], [[194, 48, nil], [nil]]] 

arr.map(&b)
# => [5, 6, 7, "", [""], [6, 8, ""], [[194, 48, ""], [""]]]