From: Ned Konz <ned@...>
Date: 2002-07-06T07:58:00+09:00
Subject: Re: VIM/ruby

On Friday 05 July 2002 03:11 pm, Steve Tuckner wrote:
> I am want to build a class or set of classes to use in VIM so that
> I can more easily script vim/ruby. The problem with the current set
> of classes is that I want VIM::Buffer, VIM::Window, and the buffer
> lists to act
>
> just like arrays so that I could do the following:
> : ruby $curbuf.sort {|a,b| a.to_i <=> b.to_i}
>
> My solution is to build a proxy class for the lines in a buffer
> that is
>
> a sub-class of an array so that I would be able to do the following:
> : ruby VIMbuf($curbuf).sort {|a,b| a.to_i <=> b.to_i}
>
> Is there a better way to do this or should I proceed as above?

You don't need to subclass Array at all to do this. Just mix in 
Enumerable and define each().

For instance, source this in Vim:

ruby <<EOF
module VIM
  class B
   include Enumerable
   def initialize(b = VIM::Buffer.current)
     @b = b
   end
   def each(&block)
     (1..@b.count).each { |n| block.call(@b[n]) }
   end
 end
end

def p(s)
  b = VIM::Buffer.current
  b.append(b.count, s.inspect)
end

# print out all the lines of this file
def beach(&block)
  b = VIM::B.new
  b.each(&block)
end
beach { |s| puts s }

# append all the lines of this file to the end.
b = VIM::B.new
b.sort.each { |s| p "s: #{s}" }

EOF

Have you seen Benoit Cerrina's VimRubyX?

There may be some good ideas in that..

http://vim.sourceforge.net/scripts/script.php?script_id=248

-- 
Ned Konz
http://bike-nomad.com
GPG key ID: BEEA7EFE