From: msnomer <msnomer@...>
Date: 2002-05-20T01:08:51+09:00
Subject: Broken protocol.rb behavior?

There seems to be a problem with ReadAdapter, unless I'm doing something 
very stupid with breaking out of a loop.

Here is my entire program:

> #!/usr/bin/ruby
> require 'net/pop'
> 
> MSGPAT  = /^\$\$\$X(.*)/
> 
> i = 0
> Net::POP3.start('pop server', 110, 'user', 'pass') {|pop|
>     if pop.mails.empty? then
>         puts 'no mail.'
>     else
>         pop.each_mail do |m|   # or "pop.mails.each ..."
>         m.all { |line|
>             if line =~ MSGPAT
>                 break
>             end
>         }
>         i += 1
>     end
>     puts "#{pop.mails.size} mails popped."
> end
> }

Running it gets the following backtrace:

> /usr/lib/ruby/1.6/net/pop.rb:456:in `get_reply': undefined method `strip' for 
> nil (NameError)
>         from /usr/lib/ruby/1.6/net/protocol.rb:275:in `check_reply'
>         from /usr/lib/ruby/1.6/net/protocol.rb:287:in `getok'
>         from /usr/lib/ruby/1.6/net/pop.rb:423:in `retr'
>         from /usr/lib/ruby/1.6/net/pop.rb:423:in `atomic'
>         from /usr/lib/ruby/1.6/net/pop.rb:423:in `retr'
>         from /usr/lib/ruby/1.6/net/pop.rb:361:in `pop'
>         from ./test1.rb:12
>         from ./test1.rb:11:in `each'
>         from /usr/lib/ruby/1.6/net/pop.rb:318:in `each_mail'
>         from ./test1.rb:11
>         from ./test1.rb:7:in `start'
>         from /usr/lib/ruby/1.6/net/protocol.rb:49:in `start'
>         from /usr/lib/ruby/1.6/net/protocol.rb:49:in `start'
>         from ./test1.rb:7

This error happens IFF the m.all loop is broken out of.

So, is something very weird going on, or am I doing something wrong? If 
the former, what's a workaround, or, if the latter, what am I doing 
wrong?

This is a relatively recent change in behavior, which tends to make me 
leans towards ReadAdapter being broken rather than my code.
-- 
meredith

"If you want me to leave, you can put your hands
 on my hot tight little body and make me." - Spike, IWMTLY
"Everyone's getting spanked but me!" - Willow, The I In Team