From: Michael Neumann <mneumann@...>
Date: 2004-05-19T00:50:35+09:00
Subject: Re: stream filtering

On Wed, May 19, 2004 at 12:43:49AM +0900, Ryan Paul wrote:
> I'm looking for a way to filter the stdout/stderr streams in ruby.
> In python, you can point sys.stdout to any class with a 'write' method-
> the write method could then be used to perform filtering actions on
> printed text. If it is possible, I would really appreciate a sample. If it
> isnt, i'd appreciate suggestions. I think I might try replacing the puts
> function, or something like that.

  a = nil
  def a.write(str)
    STDOUT << str.upcase
  end

  $stdout = a

  puts "hallo" # => "HALLO"

Regards,

  Michael