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From Vladimir Ivanov <>
Subject Re: Actions with Lift 2.2 (was: Move to latest Lift release for 1.2)
Date Fri, 17 Dec 2010 22:58:57 GMT
Hi Vassil!

Thank you very much for the link and explanation. Now it becomes much more
clear for me.

I didn't want to say that MsgParser is a simple parser. I was saying that in
absence of any documentation, it's code helps (after refreshing combinator
parsers basics in memory) to understand on very high-level the syntax of

Of course it would be better if you'll be able to look at this code by

Yes, I noticed this change in SchedulerActor when I saw your commit.

Every advice from you is greatly appreciated! :s)

2010/12/18 Vassil Dichev <>

> Hi Vladimir,
> About using actions, there used to be a short help on the "New action"
> page. I still think we did a mistake by removing it, because without
> some type of reference at hand you're lost- even I don't remember all
> details of the syntax for many actions. Anyway, here's a short
> reference:
> In short, the idea is that you have configurable filters with which
> you select messages and then for these filters you apply some actions
> with this message, like mail it or resend (i.e. retweet) it to all
> your followers. In this way you can set up the behaviour for many
> existing Twitter bots, but inside ESME, which means less problems for
> security and less problems for configuring inside the firewall.
> Regarding development: not that I want to discourage you, but actions
> seem a fairly complicated to start. First of all, sorry to disagree
> with you, but the MsgParser hardly speaks for itself :) As one can
> expect from a reasonably complicated parser, it's fairly dense code
> and it takes me some effort to modify.
> In addition, the regular action is somewhat special- it starts its own
> actor, the sole purpose of which is to trigger an action at regular
> intervals.
> By the way, the SchedulerActor had the same problem as the UserActor-
> the list was not updated properly because of the :+ operator, but I
> fixed it by replacing with the ::= operator too.
> Anyway, I'll take a look at the code this weekend and try to see what's
> wrong.
> Hope this helps,
> Vassil

Best Regards,
Vladimir Ivanov

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