From: Theodore Knab <tjk@...>
Date: 2004-02-11T14:28:12+09:00
Subject: Re: expect.rb -- self solved

If there is a better module let me know.

Never mind I found a working expect module which I added to '/usr/lib/ruby/1.8/expect.rb':

$expect_verbose = false

class IO
  def expect(pat,timeout=9999999)
    buf = ''
    case pat
    when String
      e_pat = Regexp.new(Regexp.quote(pat))
    when Regexp
      e_pat = pat
    end
    while true
      if IO.select([self],nil,nil,timeout).nil? then
        result = nil
        break
      end
      c = getc.chr
      buf << c
      if $expect_verbose
        STDOUT.print c
        STDOUT.flush
      end
      if mat=e_pat.match(buf) then
        result = [buf,*mat.to_a[1..-1]]
        break
      end
    end
    if block_given? then
      yield result
    else
      return result
    end
    nil
  end
end

Additionally, this expect test worked pretty good for me:
http://www.ksky.ne.jp/~sakae/d2/20518.html

--- sample expect ---------------------------------
require 'pty'
require 'expect'

x = ''
PTY.spawn("telnet foo.bar.com") do	# Do connect
  |r_f,w_f,pid|
  w_f.sync = true
  $expect_verbose = false		### if true, Can monitor session
  
  status = r_f.expect('login: ',timeout=30) 		### login
  if status.nil?
    puts "No responce foo.bar.com"
    exit
  end
  w_f.print "hoge\n"
  r_f.expect('word: ') do
    w_f.print "hoge-password\n"
  end

  r_f.expect('foo% ') do		### DO ls
    w_f.print "ls -l\n"   
  end  
  r_f.expect('foo% ') do |output|
     x = output[0]
  end

  begin					### logout
    w_f.print "logout\n"
  rescue
  end
end

print "\n=====\nhost foo hoge's home-dir files are \n"
print x
print "\n"
-------------------------------------------------------------------



-- 
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Ted Knab
Chester, MD 21619
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