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
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next 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
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