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Archives for 2008

Meta-Ruby for the win!

May 17th, 2008

So… let’s suppose you’re hacking away in Ruby and you mistype a method name:

irb(main):001:0> 5.clas
NoMethodError: undefined method `clas' for 5:Fixnum
        from (irb):1

Obviously I *meant* to type ‘class’, but I got the arity (0) right and the spelling wrong.

I propose an extension to Ruby based on the hypothesis that typos are more common than arity errors: if I call an undefined method with arity A on an object then I probably meant to call *one* of the object’s methods of arity A. Just printing an error message is pretty doof since its certainly not what you wanted to happen. A statistically much better solution is to pick one method of the correct arity at random and execute that — it’s going to be right *some* of the time!

How would we do this in Ruby? After little bit of experimentation I produced this:

class Object
  def method_missing(name, *args)
    choices = self.class.instance_methods.collect do |name|
      self.method name
    right_arity = choices.select do |method|
      method.arity == args.length
    which = right_arity[rand(right_arity.length)]

Just include this in your program and *all* Ruby objects will have this amazing feature!!!!

Sample run:

irb(main):017:0> 4.asdsa
irb(main):018:0> 4.asdsa
irb(main):019:0> 4.asdsa
irb(main):020:0> 4.asdsa
irb(main):023:0> 4.asdsa(7)

:D :D :D

Telepathic Cows

April 17th, 2008

Next version of xcowsay may feature telepathy

Use case? IRC messages appear as cowz!!! Awesome.

Filed in xcowsay - Comments closed

Another xcowsay release!!

April 17th, 2008

Yes yes yes!!! xcowsay 0.7 has been released!!!!

This version has:

  • A config file! checkout the man page for details
  • Can specify as many words as you like on the command line and they’ll all be joined together

Get it here!

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xcowsay 0.5

March 7th, 2008

The next release of xcowsay is out!

New features in this version:

  • Click the cow to make it go away
  • Specify the cow size with –cow-size=(small|med|large)

Get it here

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February 28th, 2008

OMG LiKE… xcowsay-0.4 is released. New featurez:

  • Automatically calculates your reading speedz!

Gets it here

Filed in xcowsay - Comments closed