all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Jean Louis <bugs@gnu.support>
To: Help GNU Emacs <help-gnu-emacs@gnu.org>
Subject: Help improve regular expression for 24 hours format
Date: Thu, 24 Nov 2022 06:36:34 +0300	[thread overview]
Message-ID: <d0335757979a3e7c2c3f476fbe9b17a4.support1@rcdrun.com> (raw)


This regular expression shall match 24 hours format such as "12:34".

I do not like how I wrote this regular expression, is there way to
provide to `rx' function something like "[012]"?

Any other way to improve this regular expression by using rx notation
that shall match only the 24 hours format such as HH:MM where HH is
for hours and MM for minutes?

(defvar rcd-rx-time (rx (= 1 (or "00" "01" "02" "03" "04" "05" "06" "07" "08" "09" "10" "11" 
 				 "12" "13" "14" "15" "16" "17" "18" "19" "20" "21" "22" "23"))
 			":" (= 1 (any "0" "1" "2" "3" "4" "5")) (= 1 (any digit)))
  "Regular expression for 24 hours format")

(string-match rcd-rx-time "23:00") ⇒ 0

--
Jean

Take action in Free Software Foundation campaigns:
https://www.fsf.org/campaigns

In support of Richard M. Stallman
https://stallmansupport.org/



             reply	other threads:[~2022-11-24  3:36 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-24  3:36 Jean Louis [this message]
2022-11-24  5:50 ` Help improve regular expression for 24 hours format tomas
2022-11-24  6:32 ` Yuri Khan
2022-11-24  8:59   ` Jean Louis
2022-11-24  9:38     ` tomas
2022-11-24 10:31       ` Jean Louis
2022-11-24 10:45         ` tomas
2022-11-24 14:22           ` [SOLVED]: " Jean Louis
2022-11-25 15:31             ` Emanuel Berg
2022-11-26 18:08               ` Jean Louis
2022-11-24 14:30           ` Jean Louis
2022-11-24 13:09 ` Michael Heerdegen

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=d0335757979a3e7c2c3f476fbe9b17a4.support1@rcdrun.com \
    --to=bugs@gnu.support \
    --cc=help-gnu-emacs@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.