From: Joost Kremers <joostkremers@fastmail.fm>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Regex to match lines with a specific number of words
Date: Sun, 24 Apr 2022 16:31:56 +0200 [thread overview]
Message-ID: <87ee1mo8cu.fsf@fastmail.fm> (raw)
In-Reply-To: <jwvk0bf1kx2.fsf-monnier+emacs@gnu.org>
On Sat, Apr 23 2022, Stefan Monnier via Users list for the GNU Emacs text editor wrote:
>>> \([^[:space:]]+[[:space:]]+\)\{30,\}
>
> I don't think yo want to match more than 30 times: as soon as you have
> 30 repetitions you know what to do.
True. I modelled it on a regex for SublimeText, which, however, was used in a
search and replace operation (where the replacement string was empty), so
matching more than 30 times was necessary. But for flush-lines it's not.
[...]
> Personally, I'd go with something like:
>
> ^\([^\n\t ]+[\t ]+\)\{30\}
Thanks, I'll try that and see if it gives any speed advantages.
--
Joost Kremers
Life has its moments
next prev parent reply other threads:[~2022-04-24 14:31 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-23 19:44 Regex to match lines with a specific number of words Joost Kremers
2022-04-23 20:58 ` Thibaut Verron
2022-04-23 21:20 ` Joost Kremers
2022-04-23 21:46 ` Thibaut Verron
2022-04-23 22:11 ` [External] : " Drew Adams
2022-04-23 22:32 ` Thibaut Verron
2022-04-23 22:21 ` Joost Kremers
2022-04-23 22:46 ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-04-24 14:31 ` Joost Kremers [this message]
2022-04-26 23:55 ` Nick Dokos
2022-04-27 7:23 ` Jean Louis
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