Expect examples

Ruby
1

Where can I find examples of using expect.rb? I find plenty of web
references to a file sample_expect.rb but I never seem to find the
actual file.

2

On Sat, 30 Sep 2006, Robert Love wrote:

Where can I find examples of using expect.rb? I find plenty of web
references to a file sample_expect.rb but I never seem to find the
actual file.

download the ruby source. then it’s in ext/pty/expect_sample.rb

sample program of expect.rb

by A. Ito

This program reports the latest version of ruby interpreter

by connecting to ftp server at ruby-lang.org.

require ‘pty’
require ‘expect’

fnames = []
PTY.spawn(“ftp ftp.ruby-lang.org”) do |r_f,w_f,pid|
w_f.sync = true

$expect_verbose = false

r_f.expect(/^Name.*: /) do
w_f.print “ftp\n”
end

if !ENV[‘USER’].nil?
username = ENV[‘USER’]
elsif !ENV[‘LOGNAME’].nil?
username = ENV[‘LOGNAME’]
else
username = ‘guest’
end

r_f.expect(‘word:’) do
w_f.print username+“@\n”
end
r_f.expect("> “) do
w_f.print “cd pub/ruby\n”
end
r_f.expect(”> ") do
w_f.print “dir\n”
end

r_f.expect(“> “) do |output|
for x in output[0].split(”\n”)
if x =~ /(ruby.*.tar.gz)/ then
fnames.push $1
end
end
end
begin
w_f.print “quit\n”
rescue
end
end

print "The latest ruby interpreter is "
print fnames.sort.pop
print “\n”

-a