Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!dali.cs.montana.edu!milton!serval!tek4!hakimian
From: hakimian@tek4.eecs.wsu.edu (Karl Hakimian - staff)
Newsgroups: comp.lang.perl
Subject: regular expressions
Message-ID: <1991Jun4.175023.6509@serval.net.wsu.edu>
Date: 4 Jun 91 17:50:23 GMT
Sender: news@serval.net.wsu.edu (USENET News System)
Organization: Washington State University
Lines: 11

I would like to talk with and and all regular expression gurus. It seems that
the regular expressions that are supported by perl (and unix) do not accept
any and all regular languages. If this is not true, I would love to learn how
to do some of the things that I am trying to do.

For example, how would you write a regular expression that accepts a string
with "foo" iff "bar" is not also in the string.

-- 
Karl Hakimian
hakimian@yoda.eecs.wsu.edu