From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2009-09-03T19:44:35+09:00
Subject: Re: Counter problem for specific file types

On Thu, Sep 3, 2009 at 11:58 AM, Ne
Scripter<stuart.clarke@northumbria.ac.uk> wrote:
> Hi all,
>
> This is a real teaser for me and would appreciate some help with the
> logic. I want to introduce some numbering to a data set. Basically I
> have two sets of items the,a control item and a process item. The
> control item is always assigned the number 0 eg. if type == "Control"
> number = "0" end
>
> A control item may or may not have process, and may have multiple
> processes. I have a while loop that goes through every single item and
> when it encounters a Control item it assigns it a 0, what I want it to
> do also is assign a continuous number to each process item.
>
> Take this algorithm
>
> if type = "control"
> number = 0
> elsif type = "process"
>  number = counter starting at one
> end
>
> It will keep adding a continuous  number to each process item until it
> comes across a type of control or something else.

If I understood correctly, what you can do is to have a counter that
starts at 1, and it's reset every time you come across a "control" or
that "something else you mention":

counter = 1
if type == "control"
  number = 0
  counter = 1
elsif type == "process"
  number = counter
  counter += 1
end

Hope this helps,

Jesus.