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Subject: bug#62552: Bug found in latest stable release v3.10 of grep
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Date: Thu, 30 Mar 2023 17:01:27 +0100
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Hi, i have identified what looks to be a bug in grep v3.10, the bug is not
present in v3.8 or v3.9, to reproduce the bug please see the attached bash
script.

The bug looks related to the use of the regex [^\d]+ which then ends up
resulting in no match.

If you need any more details then please let me know, I am very keen to get
this bug squashed as I make heavy use of grep in my scripts.

Many Thanks!.

--0000000000003e805e05f82035f0
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<div dir=3D"ltr">Hi, i have identified what looks to be a bug in grep v3.10=
, the bug is not present in v3.8 or v3.9, to reproduce the bug please see t=
he attached bash script.<div><br></div><div>The bug looks related to the us=
e of the regex [^\d]+ which=C2=A0then ends up resulting in no match.</div><=
div><br></div><div>If you=C2=A0need any more details then please=C2=A0let m=
e know, I am very keen to get this bug squashed as I make heavy use of grep=
 in my scripts.</div><div><br></div><div>Many Thanks!.</div></div>

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: mega lith01 <megalith01@HIDDEN>
Subject: bug#62552: Acknowledgement (Bug found in latest stable release
 v3.10 of grep)
Message-ID: <handler.62552.B.168020641214095.ack <at> debbugs.gnu.org>
References: <CAAHJQVKZXyL8y4Y85uQO2gB209Gk_u6LsuUCL3+EVfpovy=i8w@HIDDEN>
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Date: Thu, 30 Mar 2023 20:01:02 +0000

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Message sent to bug-grep@HIDDEN:

Subject: bug#62552: Bug found in latest stable release v3.10 of grep
Resent-From: Jeffrey Walton <noloader@HIDDEN>
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From: Jeffrey Walton <noloader@HIDDEN>
Date: Fri, 31 Mar 2023 10:16:44 -0400
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On Thu, Mar 30, 2023 at 4:01=E2=80=AFPM mega lith01 <megalith01@HIDDEN> =
wrote:
>
> Hi, i have identified what looks to be a bug in grep v3.10, the bug is no=
t
> present in v3.8 or v3.9, to reproduce the bug please see the attached bas=
h
> script.
>
> The bug looks related to the use of the regex [^\d]+ which then ends up
> resulting in no match.
>
> If you need any more details then please let me know, I am very keen to g=
et
> this bug squashed as I make heavy use of grep in my scripts.

This appears to be an issue caused by PCRE2. The GNU Grep folks have
been discussing it on their mailing list. See "Possible regression in
grep 3.10", https://lists.gnu.org/archive/html/grep-devel/2023-03/msg00017.=
html.

Jeff

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merge 62552 62605

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tags 60690 + patch
merge 60690 62605

Last modified: Mon, 3 Apr 2023 21:00:02 UTC

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