From: Brian Candler <b.candler@...>
Date: 2010-06-16T17:18:20+09:00
Subject: Re: Simulating keystrokes for automated user input

Ryan Mohr wrote:
> The solution needs to generate a keystroke programmatically such that
> the console has no idea whether it was physically typed by the user or
> not.
> 
> Tried writing to a modified stdin, directly editing /dev/tty, redirected
> echos... no luck yet.
> 
> Any ideas?

Spawn a pty. There's pty.so in the standard library, which is a C 
extension and unfortunately not well documented, but google for 
"PTY.spawn" to find some examples, e.g.

http://www.ruby-forum.com/topic/133560

http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/ext/pty/expect_sample.rb?view=markup
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