From: Rudolf Sykora <rudolf.sykora@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] grep (or perhaps regex(6)) question
Date: Tue, 5 Jul 2011 16:01:23 +0200 [thread overview]
Message-ID: <BANLkTimd9XtR+A6q1kR0AhJ7o4dSsOpUdg@mail.gmail.com> (raw)
In-Reply-To: <7e1b88d2eda348d9ea703e50b378a2e8@coraid.com>
> there should be no match to the re $junk.
> it's impossible for there to be text after then
> end of line.
1) from the regexp grammer, $junk is a valid regexp
2) grep checks input line-by-line
3) the answer to a question whether a *line* complies with '$whatever'
is --- I believe --- undefined. (It definitely should match '$';
however comparing with '$whatever' gets us outside the definitions).
Ruda
next prev parent reply other threads:[~2011-07-05 14:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-05 7:56 dexen deVries
2011-07-05 11:56 ` Rudolf Sykora
2011-07-05 12:13 ` erik quanstrom
2011-07-05 12:40 ` Rudolf Sykora
2011-07-05 12:58 ` erik quanstrom
2011-07-05 14:01 ` Rudolf Sykora [this message]
2011-07-05 14:06 ` erik quanstrom
2011-07-11 0:08 ` Russ Cox
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