Path: csiph.com!x330-a1.tempe.blueboxinc.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!news.linkpendium.com!news.linkpendium.com!news.iecc.com!nerds-end From: Tony Finch Newsgroups: comp.compilers Subject: Re: Inverse grep Date: 13 Jun 2011 17:48:13 +0100 (BST) Organization: dotat labs Lines: 17 Sender: news@iecc.com Approved: comp.compilers@iecc.com Message-ID: <11-06-021@comp.compilers> References: <11-06-015@comp.compilers> <11-06-018@comp.compilers> NNTP-Posting-Host: news.iecc.com X-Trace: gal.iecc.com 1308093967 16633 64.57.183.58 (14 Jun 2011 23:26:07 GMT) X-Complaints-To: abuse@iecc.com NNTP-Posting-Date: Tue, 14 Jun 2011 23:26:07 +0000 (UTC) Keywords: lex Posted-Date: 14 Jun 2011 19:26:07 EDT X-submission-address: compilers@iecc.com X-moderator-address: compilers-request@iecc.com X-FAQ-and-archives: http://compilers.iecc.com Xref: x330-a1.tempe.blueboxinc.net comp.compilers:147 Chris F Clark wrote: > >Actually, most "intrusion detection systems" (IDSes, e.g. Snort) and >virus scanners (e.g. ClamAV) are essentially just that. Given a >packet, the contents of the packet are inspected to see which if any >patterns are matched and if so, the relevant pattern [numbers] are >reported. Another tool to look at is re2c which can be used with SpamAssassin to compile its rule regexes. Tony. -- f.anthony.n.finch http://dotat.at/ Faeroes, South-east Iceland: Variable 3 or 4 becoming north or northwest 4 or 5. Moderate. Occasional rain. Moderate or good.