From: "Mauricio Fernández" <batsman.geo@...>
Date: 2003-06-24T02:30:16+09:00
Subject: Re: Runtime interpretation

On Tue, Jun 24, 2003 at 02:21:45AM +0900, Orion Hunter wrote:
> I want to know how to interpret something from a string, so as to be used 
> directly by the interpreter at runtime.  A simplified example:
> 
> $> ruby myprogram.rb
> Enter object information:> Array.new(4)
> object created:> [nil, nil, nil, nil]
> Enter object information:> Hash.new()
> object created:> {}
> Enter object information:> MyObject.new(2,4,6)
> etc., etc.

You mean this?

batsman@tux-chan:/tmp/ruby-1.8.0$ expand -t 2 /tmp/az.rb

require 'readline'

loop do
  line = Readline.readline("Enter object information:> ", true)
  obj = eval line
  puts "object created:> #{obj.inspect}"
end

batsman@tux-chan:/tmp/ruby-1.8.0$ ruby /tmp/az.rb
Enter object information:> Array.new(4)
object created:> [nil, nil, nil, nil]
Enter object information:> Hash.new()
object created:> {}

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