On 9/15/05, Scott Woods <scottw@qbik.com> wrote:
----- Original Message ----- From: "Felipe Magno de Almeida" <felipe.m.almeida@gmail.com> To: <boost@lists.boost.org> Sent: Thursday, September 15, 2005 7:02 PM Subject: Re: [boost] [Review] xpressive
[snip]
Exactly. I only suspected there was some difficulty here. Thanks for the full story.
IMO, it would be needed the possibility to have more than one grammar, one for success and another for failure(Would be interesting to have the possibility for more than two), until no-one has a match continue to wait for more data...
Sorry. Don't follow the duplex grammar idea.
Imagine a SMTP protocol, it has two or more responses for a command, being from success, warning and completely failure. That way is necessary 3 grammars, one for each. If nothing matched, then we probably have a real problem. But one of the three should be matched, in genereal.
[snip]
IMO, it should be another library that should be able to interact with AIO, spirit and xpressive. I already own some helper classes for something like this, when they're called from the AIO components, they forward to the grammars and verify success or failure, but they re-do all the grammar processing again. I would be willing to volunteer to help in a library like this, since I use it a lot for processing protocols with AIO(sockets) and spirit and already have some code writed. However, I dont have enough time to create such a library all by myself.
I'm in a very similar position. Except I have been forced to write my own version of AIO and regex. If that experience is any use then I'm pleased to contribute.
I implemented AIO and a glue between the grammars and the AIO system.
Cheers.
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-- Felipe Magno de Almeida Developer from synergy and Computer Science student from State University of Campinas(UNICAMP). Unicamp: http://www.ic.unicamp.br Synergy: http://www.synergy.com.br "There is no dark side of the moon really. Matter of fact it's all dark."