From: Drew Olson <olsonas@...>
Date: 2008-02-29T08:05:47+09:00
Subject: Re: Help with the DSL (ish) config class

M.W. Mitchell wrote:
> Hi,
> 
> I experimenting with this config class. I'm hoping to get something
> really easy to write and I'm on to something here, well at least I
> thought I was. This class allows me to build a nested Has like:

I threw this together in a few minutes, doesn't support nested hashes 
though :( It writes out your hash to a .yaml file that you can read in 
later.

- Drew

require 'yaml'

class Configuration
  def initialize(filename)
    @filename = filename
    @hash = {}
  end

  def method_missing(name,*args)
    @hash[name] = args.first
  end

  def store
    File.open(@filename,"w") do |out|
      out << YAML::dump(@hash)
    end
  end
end

def Configuration filename,&block
  config = Configuration.new(filename)
  config.instance_eval(&block)
end

Configuration "my_app.yaml" do
  a 10
  b 20
  c 30

  store
end

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