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From: Tassilo Horn <tassilo@member.fsf.org>
To: help-gnu-emacs@gnu.org
Subject: Re: does emacs regular expression support (?!expression)
Date: Thu, 02 Feb 2012 19:56:51 +0100	[thread overview]
Message-ID: <8739at5aj0.fsf@thinkpad.tsdh.de> (raw)
In-Reply-To: CADU1KvKHJnYk-FyFJfqm9kg5ekGSZM3yfvPK=JM_SLTtAty1zw@mail.gmail.com

土星五号 <laf163@gmail.com> writes:

> does emacs regular expression support (?!expression) ?

It would be more helpful if you'd tell us what (?!expression) would
match, preferably with some examples.  Syntactically, emacs regexp's shy
groups look similar.  The regular expression

  "\\(:?foo\\|bar\\)\\([0-9]+\\)"

matches "foo19" or "bar23", but doesn't capture foo or bar, so that
(match-string 1) is the number.

Bye,
Tassilo




  reply	other threads:[~2012-02-02 18:56 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-02 14:02 does emacs regular expression support (?!expression) 土星五号
2012-02-02 18:56 ` Tassilo Horn [this message]
2012-02-02 21:14   ` Tim Landscheidt
2012-02-02 21:45     ` Tassilo Horn
2012-02-02 22:11       ` Tim Landscheidt
2012-02-02 22:17         ` Tim Landscheidt
2012-02-03  0:37       ` Kevin Rodgers
2012-02-03  2:12         ` 土星五号
2012-02-03  8:30           ` Thien-Thi Nguyen
2012-02-03 11:17             ` Tim Landscheidt
2012-02-03 11:48               ` Thien-Thi Nguyen
2012-02-04 10:12                 ` Tim Landscheidt
2012-02-04 12:16                   ` 土星五号
2012-02-04 15:26                   ` Thien-Thi Nguyen
2012-02-05 11:57                     ` Tim Landscheidt
2012-02-02 22:09     ` Glenn Morris

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