From: Massimiliano Mirra <list@...>
Date: 2002-09-30T06:57:58+09:00
Subject: Re: How to load vars from users' app.conf (quite long)

On Sun, Sep 29, 2002 at 11:11:53PM +0900, gabriele renzi <surrender_it@ wrote:
> 1: clear, long, unpretty
> 2: shameless ripped from rbot/config.rb
> 3: shorter, but using eval 
> 4: huge case , kind of 
> 5: quicky and risky:

6: With a singleton instead of globals.


<file name="app.conf">

# comment

var1=foo
var2=bar

# comment

</file>



<file name="app/config.rb">

require 'singleton'

module App
  class Config
    def initialize
      @fields = {}
      File.open("app.conf") do |f|
        f.read.scan(/^(\w+)=(\w+)$/).each do |name, value|
          @fields[name] = value
        end
      end
    end    

    def [](name)
      @fields[name]
    end
  end

  CONF = Config.instance
end

</file>



<file name="app/logic.rb">

require 'app/config'

p App::CONF['var1']
p App::CONF['var2']

</file>


You'll probably want to improve the regex passed to #scan in
Config#initialize.

HTH

Massimiliano