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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/102447] std::regex incorrectly accepts invalid bracket expression
Date: Fri, 01 Oct 2021 10:24:57 +0000	[thread overview]
Message-ID: <bug-102447-4-yOfdFL0VDK@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-102447-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102447

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|INVALID                     |---
             Status|RESOLVED                    |NEW

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Reopening. JavaScript engines in web browsers accept invalid regexes for legacy
support:
https://262.ecma-international.org/#sec-additional-ecmascript-features-for-web-browsers

If we're not implementing a browser engine, then it should be a syntax error:

 NonemptyClassRanges :: ClassAtom - ClassAtom ClassRanges

    It is a Syntax Error if IsCharacterClass of the first ClassAtom is true or
IsCharacterClass of the second ClassAtom is true.

    It is a Syntax Error if IsCharacterClass of the first ClassAtom is false
and IsCharacterClass of the second ClassAtom is false and the CharacterValue of
the first ClassAtom is larger than the CharacterValue of the second ClassAtom.

  parent reply	other threads:[~2021-10-01 10:24 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-22 10:06 [Bug libstdc++/102447] New: " redi at gcc dot gnu.org
2021-09-24 18:50 ` [Bug libstdc++/102447] " mpolacek at gcc dot gnu.org
2021-09-24 19:03 ` redi at gcc dot gnu.org
2021-09-24 21:32 ` redi at gcc dot gnu.org
2021-09-27 11:45 ` redi at gcc dot gnu.org
2021-10-01 10:24 ` redi at gcc dot gnu.org [this message]
2021-10-02  1:28 ` rs2740 at gmail dot com
2021-10-02  6:55 ` redi at gcc dot gnu.org
2021-10-02 16:54 ` rs2740 at gmail dot com
2021-10-04  5:09 ` s.ikarashi at fujitsu dot com
2021-12-13 22:27 ` redi at gcc dot gnu.org
2021-12-14 21:47 ` cvs-commit at gcc dot gnu.org
2021-12-14 21:51 ` redi at gcc dot gnu.org
2022-07-07 23:33 ` cvs-commit at gcc dot gnu.org
2022-07-07 23:37 ` redi at gcc dot gnu.org
2023-06-23 16:12 ` cvs-commit at gcc dot gnu.org
2023-06-23 16:18 ` redi at gcc dot gnu.org

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