From: steve-humphreys@gmx.com
To: Yuri Khan <yuri.v.khan@gmail.com>
Cc: "help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>,
Jean Louis <bugs@gnu.support>
Subject: [External] : Use the characters "+" and "-" in regular expressions
Date: Thu, 20 May 2021 18:34:20 +0200 [thread overview]
Message-ID: <trinity-ae704cbe-2458-47f2-9f6a-250d37b6f234-1621528460458@3c-app-mailcom-bs16> (raw)
In-Reply-To: <CAP_d_8VtFTnQp5zpnfdm6A11d6UqHvCM_aW_dAd0iXJuaf9XJA@mail.gmail.com>
> Sent: Friday, May 21, 2021 at 4:24 AM
> From: "Yuri Khan" <yuri.v.khan@gmail.com>
> To: steve-humphreys@gmx.com
> Cc: "Jean Louis" <bugs@gnu.support>, "help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
> Subject: Re: [External] : Use the characters "+" and "-" in regular expressions
>
> On Thu, 20 May 2021 at 21:50, <steve-humphreys@gmx.com> wrote:
>
> > I have settled with
> >
> > (string-match "^[:blank:]*$" s)
> >
> > This would match only strings with spaces, not sentences with spaces. What do you think?
>
> No, that will match lines consisting of colons and letters a, b, k, l,
> and n. To use a named character class, you need double brackets.
Like this then
(string-match "^[[:blank:]]*$" s)
next prev parent reply other threads:[~2021-05-20 16:34 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-19 16:07 Use the characters "+" and "-" in regular expressions steve-humphreys
2021-05-19 16:17 ` Skip Montanaro
2021-05-19 16:26 ` steve-humphreys
2021-05-19 16:47 ` Yuri Khan
2021-05-19 17:39 ` steve-humphreys
2021-05-19 19:16 ` tomas
2021-05-19 19:27 ` tomas
2021-05-19 19:30 ` Yuri Khan
2021-05-19 21:32 ` tomas
2021-05-19 21:59 ` [External] : " Drew Adams
2021-05-20 6:26 ` RE: [External] : " steve-humphreys
2021-05-20 7:59 ` steve-humphreys
2021-05-20 8:26 ` tomas
2021-05-20 8:41 ` steve-humphreys
2021-05-20 9:42 ` steve-humphreys
2021-05-20 9:56 ` tomas
2021-05-20 10:11 ` steve-humphreys
2021-05-20 10:22 ` tomas
2021-05-20 10:37 ` steve-humphreys
2021-05-20 10:50 ` tomas
2021-05-20 11:19 ` steve-humphreys
2021-05-20 11:27 ` steve-humphreys
2021-05-20 12:04 ` tomas
2021-05-20 11:31 ` Christopher Dimech
2021-05-20 11:40 ` steve-humphreys
2021-05-20 11:49 ` Christopher Dimech
2021-05-20 13:03 ` Jean Louis
2021-05-20 11:59 ` tomas
2021-05-20 12:53 ` Jean Louis
2021-05-20 12:46 ` Jean Louis
2021-05-20 13:55 ` steve-humphreys
2021-05-20 14:14 ` Jean Louis
2021-05-20 14:28 ` steve-humphreys
2021-05-20 16:24 ` Yuri Khan
2021-05-20 16:34 ` steve-humphreys [this message]
2021-05-20 17:16 ` Eduardo Ochs
2021-05-20 18:29 ` Drew Adams
2021-05-21 5:48 ` Jean Louis
2021-05-20 10:29 ` Negating a regexp Yuri Khan
2021-05-20 10:39 ` tomas
2021-05-20 12:39 ` [External] : Use the characters "+" and "-" in regular expressions Jean Louis
2021-05-20 7:15 ` Dash in regexp character classes: Beginnig vs. end [was: Use the characters "+" and "-" in regular expressions] tomas
2021-05-20 8:08 ` Robert Pluim
2021-05-19 19:26 ` [External] : Re: Use the characters "+" and "-" in regular expressions Drew Adams
2021-05-19 19:25 ` Drew Adams
2021-05-19 16:27 ` tomas
2021-05-19 16:39 ` Skip Montanaro
2021-05-19 17:43 ` Marcin Borkowski
2021-05-19 19:10 ` tomas
2021-05-19 19:17 ` [External] : " Drew Adams
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