From: Eric Hodel <drbrain@...7.net>
Date: 2006-05-18T05:13:37+09:00
Subject: Re: Capturing stdout

On May 17, 2006, at 12:10 PM, uncutstone wu wrote:

> Eric Hodel wrote:
>> On May 17, 2006, at 5:26 AM, Mark Volkmann wrote:
>>>> $stdout = stdout
>>>
>>>  # Add a write method to this string object.
>>>  def dest.write(data); self << data; end
>>
>> How is this better than using StringIO?
>
> IMHO, by using StringIO, you pay for something useless in this case  
> but
> maybe usefule anywhere else. I mean StringIO has many methods(e.g.
> read,close,rewind) besides write , but "def dest.write....." has just
> the function you want.

You're confusing unused with useless.  I almost never use Hash#index  
but that doesn't make it useless.

> You just pay for what you want. Isn't it better?

No.  Using StringIO is more robust and more maintainable than using a  
String with custom methods.  If I want to puts or print then I have  
to add those methods.  If I just used StringIO I won't have to do  
anything.

I've found that having to maintain custom code is usually more  
expensive than reusing what's available.

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

http://trackmap.robotcoop.com