# File lib/rbot/core/unicode.rb, line 76
    def UnicodePlugin.reconfigure_filter(bot)
        debug "configuring encodings"
        enable = bot.config['encoding.enable']
        if not enable
            bot.socket.filter = nil
            $KCODE = @@old_kcode
            return
        end
        charsets = bot.config['encoding.charsets']
        charsets = ['utf-8'] if charsets.empty?
        bot.socket.filter = UnicodeFilter.new(charsets[0], *charsets)
        $KCODE = 'u'
    end