User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130107
            Thunderbird/17.0.2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Message-ID:  <50F050A2.3030208@gmail.com>
Date:         Sat, 12 Jan 2013 01:49:22 +0800
Reply-To: Mailing list for the LaTeX3 project
              <LATEX-L@LISTSERV.UNI-HEIDELBERG.DE>
Sender: Mailing list for the LaTeX3 project <LATEX-L@LISTSERV.UNI-HEIDELBERG.DE>
From: Qing Lee <sobenlee@GMAIL.COM>
Subject: Use a stack to manage the allocation of input and output streams.
To: LATEX-L@LISTSERV.UNI-HEIDELBERG.DE
Precedence: list
Envelope-To: <rainer.schoepf@GMX.NET>
Status: R

Hello,

I would like to provide some code in order to use a stack to manage the 
allocation of input and output streams.

It is available in https://gist.github.com/4015700 . Please have a look. 
I think it is more efficient and clearer than the current approach in 
`l3file`. It is obvious that it is fairly rough. And there is still some 
more work to be done in `package` module in order to compatible with 
LaTeX2e.

Best regards,
-- 
Qing Lee