Subj : PCRE in Synchronet?
To   : Digital Man
From : Angus Mcleod
Date : Fri Dec 17 2004 10:11 pm

  Re: PCRE in Synchronet?
  By: Digital Man to Angus Mcleod on Fri Dec 17 2004 17:02:00

 >  > There's always PCRE (http://sourceforge.net/projects/pcre/) for which
 >  > there is a windows port (http://gnuwin32.sourceforge.net/packages/pcre.ht
 >  > but who knows how well it works?
 > 
 > It probably "works" fine, but it's rather large.

That too....
 
 >  > I was hoping that a suitable library had already been included in the SBB
 >  > code-base.  I don't much fancy sticking an entire library in there to do 
 >  > silly proggy or two!
 > 
 > What exactly did you want to do?

I'd only got a vague idea on improving the filtering in various ways:

* Read the entire twit-list once before starting on the packet, and build 
  a structure in-memory, rather than re-reading the file repeatedly for 
  each message.

* Support some sort of network-specific or host-specific lists like say 
  maybe twitlist.vert.cfg for filters applicable to a specific host and/or
  twitlist.dove-net.cfg to filter by specific network.  Default twitlist.cfg
  to apply to all packets.

* Expand syntax to make filters more useful.  I'm thinking allow the 
  field(s) to be matched to be specified, and the action to be taken to be 
  specified as well.  Currently, a name is checked against From: and To: 
  and if matched it's dropped:

	Drop: From= To= Newborn	

  But also allow (say):

	Drop: Subject= Body= NetJuke

  and perhaps:

	Moveto RELIGION: Subj= Law and Evo0ltion

And so forth.  As you can see, poorly considered at present, and no doubt 
worth considerable more thought, but it would obviously be valuable to be 
able to use RE's in matching.


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