From: Hans Sjunnesson <hans.sjunnesson@...>
Date: 2007-02-26T19:05:05+09:00
Subject: Re: symbol to true object

On Feb 26, 10:39 am, Brian Candler <B.Cand...@pobox.com> wrote:
> On Mon, Feb 26, 2007 at 04:19:13PM +0900, Nasir Khan wrote:
> > Is there an idiom to convert the symbol :true to object true (of TrueClass)?
>
> BOOL_MAP = { :true=>true, :false=>false }
> BOOL_MAP[sym_arg]

Or

class Symbol
  def to_bool
    if to_s.eql?("true")
      true
    elsif to_s.eql?("false")
      false
    else
      raise ArgumentError
    end
  end
end

:true.to_bool => true
:false.to_bool => false
:nothing.to_bool => ArgumentError

--
Hans