From: Robert Dober <robert.dober@...>
Date: 2010-04-30T02:26:21+09:00
Subject: Re: Use of STDOUT.flush after puts

On Thu, Apr 29, 2010 at 2:31 PM, hemant <gethemant@gmail.com> wrote:
> On Thu, Apr 29, 2010 at 1:28 PM, Robert Dober <robert.dober@gmail.com> wrote:
>> On Thu, Apr 29, 2010 at 9:16 AM, Siep Korteling <s.korteling@gmail.com> wrote:
>> <snip>
>>> Instead of STDOUT.flush-ing multiple times, you can set STDOUT.sync =
>>> true once.
>>
>> And, please, instead of using STDOUT, please use $stdout, this allows
>> your users to mock stdout to somewhere else *without* getting constant
>> redefinition warnings.
>
>
> One can always use IO#reopen if one wants to redirect the output
> somewhere. I still prefer constant declaration more than global
> variable.
>
Hmm, can you? I am not that sure, here is the behavior I was thinking about:

def with_stdout stdout, &blk
  original_stdout = $stdout
  $stdout = stdout
  blk[]
ensure
  $stdout = original_stdout
end

R.