From: Kaldrenon <kaldrenon@...>
Date: 2008-07-22T01:44:33+09:00
Subject: Re: Where should I put the loops

On Jul 21, 9:25 am, Li Chen <chen_...@yahoo.com> wrote:
> > [A..Z].each do |letter|
> >        [1...num].each do |number|
> >               #Process the website in here
> >                process_website letter number
> >        end
> > end

> In order to break out of the loop what I do is that I  compare the website
> address of current page and the previous page. If they are the same I am
> going to break out the current loop and go to next letter. I wonder how
> you implement this idea into the current script.

If I understand what you're asking correctly, it would be something
like this (this is pseudo-code)

[A..Z].each do |letter|
  old_website = nil
  [1...num].each do |number|
     #Process the website in here
     new_website = fetch_website(letter, number)
     if new_website != old_website
       process_website(new_website)
     else
       #break out of num-loop
     end
     old_website = new_website
  end
end

This is assuming that the only time you will ever have duplication is
when you have reached the end of the loop for a given letter. Is that
correct?