From: cldwalker <gabriel.horner@...>
Date: 2009-07-24T03:30:09+09:00
Subject: Re: Pagination in Readline

Hi Brian,

> I'm writing a Ruby command-line terminal program using Readline, and in
> some cases the output from the commands ran by the user overflows the
> height of the terminal.  Thus, I'd like to be able to have pagination in
> the program.  Any ideas how to do this?

I've written hirb, http://tagaholic.me/hirb/, which does conditional
stdout pagination
among other things. For your particular case you'd do this:

require 'hirb'
Hirb::View.enable
Hirb::View.capture_and_render { puts output }


If the output exceeds your console height, it should default to a
system pager.
If this doesn't work you may need to pass your console's width and
height explicitly to Hirb:
Hirb::View.resize(width, height)

If Hirb doesn't do exactly what you want, you can also just rip out
the pagination stuff + tweak it.


Gabriel