From: Eric Hodel <drbrain@...7.net>
Date: 2006-05-18T03:35:08+09:00
Subject: Re: Capturing stdout

On May 17, 2006, at 5:26 AM, Mark Volkmann wrote:
> On 5/17/06, Daniel Harple <dharple@generalconsumption.org> wrote:
>> 2006/5/17, Damphyr <damphyr@freemail.gr>:
>>> I have code that prints to stdout (using puts and/or print). I'm  
>>> loading the code from a file (pretty much the way rake handles  
>>> rakefiles) and would like to capture the output from the loaded  
>>> code.  I don't want to redirect stdout into a file or anywhere  
>>> else, I need the output in a string.
>>
>> require 'stringio'
>> stdout = StringIO.new
>> $stdout = stdout
>> load "file1.rb"
>> $stdout = STDOUT
>> stdout.rewind
>> puts "got: #{stdout.read}" # => got: Output of meaningful code  
>> omitted
>
> Here's another alternative.
>
>  # Create a string object to receive the output.
>  dest = ''
>
>  # Add a write method to this string object.
>  def dest.write(data); self << data; end

How is this better than using StringIO?

-- 
Eric Hodel - drbrain@segment7.net - http://blog.segment7.net
This implementation is HODEL-HASH-9600 compliant

http://trackmap.robotcoop.com