From: "Einar Magnús Boson" <einarmagnus@...>
Date: 2008-12-19T10:40:40+09:00
Subject: Re: Sleep


On 19.12.2008, at 01:21 , Adam Steinfurth wrote:

> This program is very simple.  It is suppose to load in the text  
> file, load
> each character into an array, then print out the array one letter at a
> time.  It is supposed to wait 1 second each time it prints.  This  
> freezes
> every time I run it.  Any ideas?
>
> Adam
>
>
> class Slow_Array
>
>    def array_split
>        @f = File.open('Text_for_TextReader.txt','r') do |f|
>            f.gets.scan(/\w/)
>        end
>    end
>
>    def print_and_wait
>        @f.each {
>            |i|
>            print i
>            sleep 1
>        }
>    end
>
> end
>
> #-------------------------------------------------
> # Main logic
> TextReader = Slow_Array.new
>
> # Bring file into program
> TextReader.array_split
>
> # Print each character, waiting one second in between each printing
> TextReader.print_and_wait
>
> -- 
> Put your computer to work.
> www.volunteerathome.com


It doesn't freeze, but the output is buffered so it appears that way.  
try adding a flush:

   print i
   STDOUT.flush
   sleep 1


einarmagnus