From: Alex Stahl <astahl@...5.com>
Date: 2010-09-10T09:29:31+09:00
Subject: Re: How to do foo.chomp!.rstrip!.downcase!  ?

What you're likely running into is that .rstrip! returns nil if no
change was made.

Check this for more details:
http://ruby-doc.org/core/classes/String.html#M000829

-Alex

On Thu, 2010-09-09 at 19:23 -0500, Geometric Patterns wrote:
> Rather than:
> 
> foo.chomp!
> foo.rstrip!
> foo.downcase!
> 
> ...it seems like I should be able to do:
> 
> foo.chomp!.rstrip!.downcase!
> 
> ...but I get: undefined method `downcase!' for nil:NilClass
> (NoMethodError)
> 
> This is probably a basic ruby thing that I'm not grokking...
> 
> Many thanks in advance,
> 
>  - d