From: Jay Levitt <jay+news@...>
Date: 2007-09-28T02:05:06+09:00
Subject: Re: Detecting number ranges

On Wed, 26 Sep 2007 14:57:04 -0700, William James wrote:

> I'm not in the mood for hash.
> 
> ary = DATA.readlines
> ary.map{|s| s[/\d+$/] }.uniq.each{|server|
>   db = ary.grep(/ #{server}$/).map{|s|
>     s[/\d+/].to_i}.sort
>   puts "Server #{server} databases #{db[0]} to #{db[-1]}"
> }

Definitely wins the "shortest" prize!  But, um, no output:

#=> Server  databases  to 

Looks like .each is called only once, with |server| == nil.  

Weirder, when I just run:

ary = open("fake_data").readlines
ary.map{|s| s[/\d+$/] }.inspect
return

I get:

#=> wjames.rb:4: unexpected return (LocalJumpError)

I would have thought that ary.map{|s| s[/d+$] } should return an array
itself.  Although I'm not clear what that line does - doesn't it look for a
1+ digit number n, and return the nth character of the line?

-- 
Jay Levitt                |
Boston, MA                | My character doesn't like it when they
Faster: jay at jay dot fm | cry or shout or hit.
http://www.jay.fm         | - Kristoffer