From: Thomas Haggett <lists@...>
Date: 2009-10-01T08:15:15+09:00
Subject: Re: Can you make a clock?

Hi. Am I missing something or do you just need:

	Time.now.strftime("%h %d %H:%M:%S")

To write to a terminal by replacing existing lines you need to send a  
carriage-return without a line-feed (i.e. \r rather than \n on the end  
of lines). If I'm being hacky, I generally just write them directly:

	$stderr.write "\rstuff here"

Just be aware that anything longer than the new line will still be  
visible (i.e.

	$stderr.write "\rlong string"
	$stderr.write "\rshort"

will result in

	"shortstring"

being visible.

If you want to do this properly, you should probably look at the  
ncurses library (http://ncurses-ruby.berlios.de/).

Thomas

On 30 Sep 2009, at 23:54, Scott Andrechek wrote:

> 'Ello. I was just wandering how you update the time in a ruby program
> (like a clock). For instance:
> COMP:WED Sep 30 18:51:30
> COMP:WED Sep 30 18:51:31  #Replacing the above line
>
> I don't need the entire code for a clock (unless you happen to have  
> it)
> I just need to know the idea of how to make it. Thanks.
>
> -Scott
> -- 
> Posted via http://www.ruby-forum.com/.
>