From: Wybo Dekker <wybo@...>
Date: 2006-02-23T00:06:05+09:00
Subject: Re: How to evaluate file as Ruby code?

On Wed, 22 Feb 2006, Ronald Fischer wrote:

> How do I evaluate a text file as a sequence of Ruby statements?
> (For those who happen to know Perl: I would like to have an
> equivalent of the Perl 'do FILENAME' feature).
>
> For example, I have a file "foo" which contains the lines
>
>  abc=4
>  def=5
>
> I would like to "evaluate" the file such that after this, the
> variable abc is set to 4 and def is set to 5.
>
> I tried the following:
>
> eval(File.new("foo").read)
>
> But after this, abc is still undefined. What am I doing wrong here?

first, def=5 is a problem because def is a reserved word
So make 'foo' to state
    a=4
    b=5

and then try:

a = b = nil
eval(File.new('foo').read)
puts "a=#{a} b=#{b}"

-- 
Wybo