From: Markus Koenig <markus@...>
Date: 2005-10-07T06:11:53+09:00
Subject: Re: HighLine Issue (was Re: Lisp Game (#49))

Hello James,

I really appreciate your and Greg's work. It's nice to see what can
evolve from a simple quiz idea. :)

> I'm very interested in understanding this problem and fixing it  
> correctly.  Could you please show a trivial HighLine script and how  
> you are trying to use it, so I can wrap my head around this?

I think HighLine's methods should either raise EOFError or return nil
if EOF is reached, but I'm not sure which one would be nicer. Maybe a
hybrid approach, like IO#gets and IO#readline?

The trivial script, if the methods return nil:

    require 'highline/import'
    loop do
        name = ask("What's your name?")
        if response.nil? or response == 'exit'
            puts 'Goodbye, dear friend.'
            exit
        else
            puts "Hello, #{name}!"
        end
    end

I expect this program to behave like most Unix shells - quietly quit
when one presses Ctrl-D (EOF). But this would print a stack trace, as
shown earlier.

Thanks,
Markus