From: James Edward Gray II <james@...>
Date: 2007-04-29T09:47:26+09:00
Subject: Re: Output A File w/ Line Numbers?

On Apr 28, 2007, at 7:11 PM, John Joyce wrote:

>
> On Apr 29, 2007, at 4:49 AM, James Edward Gray II wrote:
>
>> See the standard generator library for doing this without a counter.
> You just made up that name right?

Nope:

 >> require "generator"
=> true
 >> enum = %w[one two three]
=> ["one", "two", "three"]
 >> gen = Generator.new(enum)
=> #<Generator:0x14be12c @cont_endp=nil, @cont_yield=#<Continuation: 
0x14be050>, cont_nextnil, queue["one"], block#<Proc:0x014c3640@/usr/ 
local/lib/ruby/1.8/generator.rb:71>, index0
 >> gen.next?
=> true
 >> gen.next
=> "one"
 >> gen.next?
=> true
 >> gen.next
=> "two"
 >> gen.next?
=> true
 >> gen.next
=> "three"
 >> gen.next?
=> false

James Edward Gray II