patshaughnessy

after :: String -> [String] -> [String]
after _ []               = []
after target (x:xs)
    | isInfixOf target x = [x] ++ xs
    | otherwise          = after target xs

main = do  
        contents <- readFile "the-lake-isle-of-innisfree.txt"
        putStr . unlines . after "glimmer" . lines $ contents

patshaughnessy

Wow Justin, I really loved this! My only criticism is that it’s too bad you
used CoffeeScript instead of Ruby :)

I especially loved the top-down approach you used in your example. I’ve started
to use this all the time myself. I actually wrote about this recently:
http://patshaughnessy.net/2014/2/10/use-an-ask-dont-tell-policy-with-ruby

For me, the biggest benefit of the top-down (“Ask, Don’t Tell” - apologies to
Dave Thomas) style is how it encourages a functional coding style. There are
just so many benefits of doing this. Since I’ve been doing this at a micro

patshaughnessy

This weekend Ashley Williams (@ag_dubs), Jeff Casimir (@j3) and I had a brief
discussion on Twitter about teaching programming to kids. We thought this would
be a topic that many other people might be interested in too, so I setup this
page in case anyone else wants to join the discussion.

We're not sure where this will lead - as a next step we could setup a Google
group, Discourse site, Basecamp or some other forum for a longer discussion.


Here's the original Twitter conversation:

patshaughnessy

With regard to this twitter conversation:
https://twitter.com/PericlesTheo/status/601745115074420736

Hi Pericles,

This morning I took a quick look at how ActiveRecord converts the query result
back into Ruby objects.

Here’s where it happens:

patshaughnessy

def avatar_geometry(style = :original)
  @geometry ||= {}
  begin
    path = avatar.path(style)
    unless path
      temp_file = Tempfile.open("#{avatar_file_name}_#{style}")
      temp_file << avatar.file_contents(style)
      path = temp_file.path
    end
    @geometry[style] ||= Paperclip::Geometry.from_file path

patshaughnessy

class Hostess < Sinatra::Base

... etc ...

  def serve_via_s3
    serve do
      redirect "http://#{$rubygems_config[:s3_domain]}#{request.path_info}"
    end
  end

patshaughnessy

class Pusher
  attr_reader :user, :spec, :message, :code, :rubygem, :body, :version, :version_id

  def initialize(user, body, host_with_port=nil)
    @user = user
    @body = StringIO.new(body.read)
    @indexer = Indexer.new
    @host_with_port = host_with_port
  end

patshaughnessy

def cripple_rubygems(specs)
  reverse_rubygems_kernel_mixin

  executables = specs.map { |s| s.executables }.flatten
  Gem.source_index # ensure RubyGems is fully loaded

  ::Kernel.send(:define_method, :gem) do |dep, *reqs|

...etc...

patshaughnessy

(gdb) bt
#0  str_new (klass=4303856320, ptr=0x100680500 "The Ruby core team is playing a joke on us!", len=43) at string.c:389
#1  0x00000001001179f8 in rb_str_new [inlined] () at /Users/pat/.rvm/src/ruby-1.9.3-preview1/string.c:416
#2  0x00000001001179f8 in rb_enc_str_new (ptr=<value temporarily unavailable, due to optimizations>, len=<value temporarily unavailable, due to optimizations>, enc=0x1004027e0) at string.c:430
#3  0x000000010009f725 in parser_str_new (p=<value temporarily unavailable, due to optimizations>, n=<value temporarily unavailable, due to optimizations>, enc=0x1004027e0, func=2, enc0=0x1004027e0) at parse.y:5401
#4  0x00000001000aa677 in parser_parse_string (parser=0x10060e000, quote=0x1010793e0) at parse.y:6033
#5  0x00000001000ab285 in parser_yylex (parser=0x10060e000) at parse.y:6645
#6  0x00000001000b4999 in ruby_yyparse (parser=<value temporarily unavailable, due to optimizations>) at parse.y:7922
#7  0x00000001000c24bf in yycompile0 (arg=<value temporarily unavailable, due to optimi

patshaughnessy

I go to the home page
And I follow "sign up"
And I fill in username with "Matt"
And I fill in password with…