From: Robert Klemme <shortcutter@...>
Date: 2010-01-29T06:40:19+09:00
Subject: Re: Regex or line.each seems to not be working.

On 01/28/2010 08:45 PM, Roger Pack wrote:
>> Perfect... Thanx man that did the trick.... Changed everything to 
>> "match" instead of "scan"... Keep a mental not on that.
> 
> Believe it or not, I run into that one *all the time*
> 
> Perhaps there should be an RCR for scan to return nil on no match?

IMHO that would be inconsistent.  Think about how SQL does it: if you 
query for one element, you get a result set with one element which can 
be NULL or a value != NULL.  If you query for multiple elements you get 
a potentially empty result set.  I believe the number of APIs that 
return collections and which return nil, null or NULL in case nothing is 
found is a minority.

Btw, I usually use #scan with the block.  In that case I don't really 
care about the return value of #scan. :-)

Kind regards

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/