GNU bug report logs - #58992
28.2; "lax space matching" no longer works

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Package: emacs;

Reported by: Vincent Lefevre <vincent <at> vinc17.net>

Date: Thu, 3 Nov 2022 16:54:02 UTC

Severity: normal

Found in version 28.2

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Vincent Lefevre <vincent <at> vinc17.net>
To: Andreas Schwab <schwab <at> linux-m68k.org>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 58992 <at> debbugs.gnu.org
Subject: bug#58992: 28.2; "lax space matching" no longer works
Date: Fri, 4 Nov 2022 15:32:50 +0100

On 2022-11-04 14:25:20 +0100, Andreas Schwab wrote:
> On Nov 04 2022, Vincent Lefevre wrote:
> 
> > On 2022-11-04 12:38:14 +0100, Andreas Schwab wrote:
> >> On Nov 04 2022, Vincent Lefevre wrote:
> >> 
> >> > Wow! This is really confusing! [:space:] is defined by POSIX,
> >> 
> >> Emacs regexps are _not_ defined by POSIX.
> >> 
> >> >     A character alternative can also specify named character classes
> >> >     (*note Char Classes::).  This is a POSIX feature.  [...]
> >                                  ^^^^^^^^^^^^^^^^^^^^^^^
> >
> >> Did you read the referenced node?
> >
> > Did you read what the manual says?
> 
> Yes, I did.

No, you didn't.

> ‘[:space:]’
>      This matches any character that has whitespace syntax (*note Syntax
>      Class Table::).

This is NOT a POSIX feature!!!

-- 
Vincent Lefèvre <vincent <at> vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
This bug report was last modified 2 years and 203 days ago.

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