From: Simon Strandgaard <neoneye@...>
Date: 2004-08-06T16:07:00+09:00
Subject: Re: %w for symbols

On Friday 06 August 2004 09:00, Caio Chassot wrote:
> Is there any similar notation to %w[ word word2 word3 ] that returns an
> array of symbols instead of strings?
>
> If not, are there any plans for it in future ruby? Is it a good idea
> anyway?
>
> (Maybe that's a good example of where we could use macros?)



%w(a b c).map{|i|i.to_sym}   #=> [:a, :b, :c]

If that isn't short enough.. then you may want to do

irb(main):001:0> class Array; def to_sym; self.map{|i|i.to_sym}; end; end
=> nil
irb(main):001:0> %w(a b c).to_sym
=> [:a, :b, :c]


IMHO I don't think a literal for easier making  array of symbols is needed.

--
Simon Strandgaard