[Unreal-users] RE: Unreal-users digest, Vol 1 #917 - 2 msgs

[droolin <dr...@ad...>]

Thank you,
	Very much appriceated.

	drool

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Subject: Unreal-users digest, Vol 1 #917 - 2 msgs


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Today's Topics:

   1. spam list question on regular expresions (droolin)
   2. Re: spam list question on regular expresions (Bram Matthys (Syzop))

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Message: 1
Reply-To: <dr...@ad...>
From: "droolin" <dr...@ad...>
To: "Unreal-Users" <unr...@li...>
Date: Tue, 23 Nov 2004 19:19:58 -0500
Subject: [Unreal-users] spam list question on regular expresions

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I follow a couple of security e-mails on irc, and see that there is a new
spam bot out that is posting a couple of web sites.  But, the web address's
are in both upper and lower case.  Which, I'm sure is to get past the spam
filters.
My question is this:  When we define the regex in the spam filter, can we
specify flags/switch's that turns off case sensitivity????  Like perl has?

One of the things I want to match against is this:
Www.Video.Such.Info

But, because they could just change any of the letters to be upper and lower
case.  I would like to specify a switch in the regular expression to turn
off case sensitivity.

droolin


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Message: 2
Date: Wed, 24 Nov 2004 03:54:26 +0100
From: "Bram Matthys (Syzop)" <sy...@vu...>
To: Unreal-Users <unr...@li...>
Subject: Re: [Unreal-users] spam list question on regular expresions

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Hi,

droolin wrote:

> My question is this:  When we define the regex in the spam filter, can we
> specify flags/switch's that turns off case sensitivity????  Like perl has?

Yup, since Unreal3.2.2 (which uses TRE 0.7.0) this is possible.
You can use (?-i) to turn off case sensitivity, and
(?i) to turn it on again... eg: (?-i)test(?i)ing
would match:
testing
testINg
but not:
teSTING
TESTING

Regards,

	Syzop.


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