From: Drew Adams <drew.adams@oracle.com>
To: goncholden <goncholden@protonmail.com>, Robert Pluim <rpluim@gmail.com>
Cc: "help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
Subject: RE: [External] : Re: Making a regex string that matches (
Date: Thu, 10 Mar 2022 17:57:12 +0000 [thread overview]
Message-ID: <SJ0PR10MB5488829A4ABD8B32311BEC3CF30B9@SJ0PR10MB5488.namprd10.prod.outlook.com> (raw)
In-Reply-To: <JO60EMe2_V2IFCKjFg585c3Va1An0uIOVKfYq8A11t2UOLdmjcfIRZRDySFRxT_s4LavmoZbqEddi7RlFL4qVpLTOEUhRQUJpjGT3WzZyHA=@protonmail.com>
> Have come up with the following function. Would this be enough to
> count the number oy opening parantheses in a region ?
>
> (defun bracketing-count (region-start region-end)
> "Counts opening and closing bracketing marks.
> Interactive functions enable them to be called using `M-x`"
> (interactive "r") ; gets region start and end
> (message "Counting bracketing marks ...")
> (save-excursion
> (let (count)
> (setq count 0)
> (goto-char region-start)
> (while (and (< (point) region-end)
> (search-forward "\(" region-end t))
> (setq count (1+ count))) ))))
1. You can just use function `count-matches', with "("
as the regexp.
https://emacs.stackexchange.com/q/70870/105
2. (let (count) (setq count 0)...)
->
(let ((count 0)...)
3. (search-forward "(" ...) ; You don't need "\(".
4. If your user uses your command, s?he sees only the
message "Counting bracketing marks...". She likely
would like to see the count at the end, no?
next prev parent reply other threads:[~2022-03-10 17:57 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-10 13:36 Making a regex string that matches ( angelomolina--- via Users list for the GNU Emacs text editor
2022-03-10 14:39 ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-03-10 15:51 ` Robert Pluim
2022-03-10 17:14 ` goncholden
2022-03-10 17:48 ` Eric Abrahamsen
2022-03-10 17:57 ` Drew Adams [this message]
2022-03-10 18:54 ` [External] : " Emanuel Berg via Users list for the GNU Emacs text editor
2022-03-10 18:03 ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-03-11 12:24 ` Leo Butler
2022-03-11 19:53 ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-03-10 15:13 ` Leo Butler
2022-03-11 23:43 ` Eduardo Ochs
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