Hangman autoclicker for #ruby-offtopic (when the category is ruby)

slowlag.rb

require 'socket'

s = TCPSocket.new 'irc.freenode.net', 6667
s.puts "NICK slowlag"
s.puts "USER slowlag 0 * :slowlag"
s.puts "JOIN #ruby-offtopic"

all = File.read('all').split("\n")
can = all.dup

loop do
  msg = s.gets.force_encoding('utf-8')

  next s.puts("PONG #$1") if msg[/PING (\S+)/]
  next unless msg[/^:DeBot/]
  next can = all.dup if msg[/won!/]

  msg[/:(\S+) \[(\S*)\] (\d)/]

  next can.select! { |c| c.size == $1.size } if $3 == ?0

  cs = $1.delete(?␣) + $2
  rx = $1.gsub ?␣, "[^#{cs}]"
  can.select! { |c| c[/^#{rx}$/i] }

  s.puts "PRIVMSG #ruby-offtopic :DeBot: #{can[0]}" if can.size == 1
end