From mboxrd@z Thu Jan  1 00:00:00 1970
Message-Id: <3.0.6.32.20020304132132.009cba10@pop3.clear.net.nz>
To: 9fans@cse.psu.edu
From: Andrew Simmons <andrew@mbmnz.co.nz>
Subject: Fwd: Re: [9fans] samuel (fwd) 
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Date: Mon,  4 Mar 2002 13:21:32 +1300
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>(A reasonable grep, even without a regexp library to hand, can be done in
a few dozen
>lines of C.  An exercise for the reader.)

It's easier to cheat, and look up the answer in TPOP chapter 9.