From: Jim Freeze <jim@...>
Date: 2003-05-07T21:30:09+09:00
Subject: Re: Testing for a class existence

On Wednesday,  7 May 2003 at 21:20:39 +0900, Mike Campbell wrote:
> 
> > $ irb18 -v
> > irb 0.9(02/07/03)
> > $ irb18
> > irb(main):001:0> defined? (a=1)
> > => "assignment"
> > irb(main):002:0> defined? (a,b=1,2)
> > SyntaxError: compile error
> > (irb):2: syntax error
> > defined? (a,b=1,2)
> >             ^
> > (irb):2: syntax error
> >         from (irb):2
> >
> 
> I don't have any 1.8 stuff yet, but is there  a difference between : defined?
> (a,b = 1,2)
> and: defined?(a,b = 1,2)  # note space
> 
> With all the poetry mode (IMO) nonsense and changes lately, _anything_
> unexpected I've seen I've been afraid of whitespace causing it...
> 

Spaces don't seem to matter:

 
ruby -v -e 'defined?(a,b = 1,2)'
ruby 1.8.0 (2003-04-10) [sparc-solaris2.8]
-e:1: parse error
defined?(a,b = 1,2)
           ^
-e:1: parse error


-- 
Jim Freeze
----------
... the MYSTERIANS are in here with my CORDUROY SOAP DISH!!