From: David Alan Black <dblack@...>
Date: 2002-04-12T06:00:33+09:00
Subject: Re: Is this behavior correct?

Hello --

On Fri, 12 Apr 2002, David Corbin wrote:

> --cut--
> Hit ENTER or type command to continue
> class Bar
>     def initialize(*children)
>         puts "Init "+children.to_s
>     end
> end
>
> foo =  Bar.new("Alpha");
> foo =  Bar.new
>     ("Beta");
> --cut--
> --stdout--
> Init Alpha
> Init
> --stdout--
>
> Ruby version: ruby 1.6.7 (2002-03-01) [i686-linux]
>
> If it is correct?  If so, can someone point me at some documentation
> about where whitespace is important to Ruby?

Yes, it's correct.  Use -w and you'll get a hint :-)

$ ruby -w corbin.rb
corbin.rb:9: warning: useless use of a literal in void context
Init Alpha
Init

So the second Bar.new has no argument, and the ("Beta") is just sort
of sitting there.  I'm not sure of the exact formulation of the
rule...  (see Pickaxe), but the newline will be significant (end of
statement) generally unless the line ends with a binary operator.

  puts 3 +
  4           # => 7

  puts 3
  + 4         # => 3

(and maybe other circumstances I'm not thinking of)


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav