From: Paul Brannan <pbrannan@...>
Date: 2001-10-31T00:21:31+09:00
Subject: [ruby-talk:23853] Re: String#each_line

On Tue, 30 Oct 2001, David Alan Black wrote:

> Weirdly, it works if you use '' instead of "".

I think that's because:

  ruby -e '"1\n2\n\n3\n4".each('') {|s| p s}'

is really:

  ruby -e '"1\n2\n\n3\n4".each('<------>') {|s| p s}'

(the two pieces are pasted together on the command line).  So that's the
same as:

  ruby -e '"1\n2\n\n3\n4".each() {|s| p s}'

This is evident if you try the same in irb:

  [pbrannan@zaphod ruby-1.6.5]$ irb
  irb(main):001:0> "1\n2\n\n3\n4".each('') {|s| p s}
  "1\n2\n\n"
  "3\n4"
  "1\n2\n\n3\n4"
  irb(main):002:0>

Paul