From: Mike Wilson <wmwilson01@...>
Date: 2002-03-07T22:52:09+09:00
Subject: pty and vi

I've hacked together a little script, using some of the samples from the 
ruby distribution.  It's using the pty module, but I can't figure out how to 
get this to work with vi.  Whenever I try to vi a file, it basically just 
overwrites the contents of the file with the vi commands.

here's the script:
require 'pty'

puts "Choose a system to connet to: "
puts "    1) t..."
puts "    2) a..."
puts "    3) h..."
puts "    4) d..."
puts
print "selection(1-4): "
sys = STDIN.gets.chomp
connect_string = "FFFX30*hmc1*9734*" + sys + "*7040-681*0207D5A*1\n"

system "stty -echo raw lnext ^_"

PTY.spawn("telnet hmc1 9735") do
  |r_pty,w_pty,pid|

  w_pty.print connect_string
  w_pty.flush

  Thread.new do
    while true
      w_pty.print STDIN.getc.chr
      w_pty.flush
    end
  end

  begin
    while true
      c = r_pty.sysread(512)
      break if c.nil?
      print c
      STDOUT.flush
    end
  rescue
     print $@,':',$!,"\n"
  end
end

system "stty echo -raw lnext ^v"

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