From: Simon Strandgaard <neoneye@...>
Date: 2003-11-21T04:07:14+09:00
Subject: Re: [ann] iterator 0.1

On Fri, 21 Nov 2003 03:11:28 +0900, ts wrote:

>>>>>> "N" == Nikolai Weibull <ruby-talk@pcppopper.org> writes:
> 
> N> * Simon Strandgaard <qj5nd7l02@sneakemail.com> [Nov, 20 2003 17:40]:
>>> We are curios to hear what your first-impression are, What do
>>> you want from 'iterator.rb'? What are your requirements?
> N> my first impression is that you must really, really love iterators ;-)
> N> anyway, may be interesting to see how useful this is.  this may be
> N> something to integrate into (or other way around perhaps? ;-) RDSL

You are welcome to use 'iterator.rb' in RDSL.. However 'iterator.rb' are
under Ruby license and RDSL are under LGPL. I think you can make a
vendor-branch, and import 'iterator.rb' into your cvs-repository:
http://www.loria.fr/~molli/cvs/doc/cvs_13.html#SEC98
 

>  Well, the problem is that it exist something similar in 1.8.1
> 
> # == Overview
> #
> # This library provides the Generator class, which converts an
> # internal iterator (i.e. an Enumerable object) to an external
> # iterator.  In that form, you can roll many iterators independently.

I wasn't aware of 'generator.rb'. The 'Generator from a block' idea 
is good, I will rip it. 

I started working on the iterator before Ruby-1.8.1 were released,
because I needed it for my regexp-engine in order to iterate over many
different kinds of input-streams. Also because I needed a robust-iterator.
'generator.rb' cannot replace 'iterator.rb'.

I originally tried out Horst Duchene's 'stream' package, but found it too
counter-intuitive. I don't believe there are other iterator packages ?

--
Simon Strandgaard