From: John Joyce <dangerwillrobinsondanger@...>
Date: 2007-04-24T01:38:41+09:00
Subject: nil instead of EOF

Seeing as how Ruby will return nil when an I/O stream is empty,
is there anything wrong with using nil where other languages might  
use EOF ?
As in this example:

File.open("text.txt") do |f|
   puts f.gets(nil)
end