From: Robert Feldt <feldt@...>
Date: 2001-05-11T17:28:11+09:00
Subject: [ruby-talk:14986] Re: Eval to Proc?

On Fri, 11 May 2001, Renald Buter wrote:

> Hello,
> 
Hi,

> My question is: is it possible to create a Ruby block/proc for evaluating
> using a string?
> 
> For example
> 
>  #!/usr/local/ruby -w
>  # test.rb
>  p = Proc.new(ARGV[0])
>  mbox.each { |mail| call p(mail) }
> 
> using the command line:
> 
>  $ ruby test.rb '|mail| mail.get_from =~ /test header/ and puts mail'
> 
> or something like that?
> 
Yes (if I understand you correctly...),

#!/usr/local/ruby -w
# test.rb
p = eval "proc{#{ARGV[0]}}"
mbox.each &p

Regards,

Robert