GNU bug report logs - #38844
28.0.50; Incorrect result by help-fns--mention-first-release

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Xu Chunyang <xuchunyang56 <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 28.0.50; Incorrect result by help-fns--mention-first-release
Date: Wed, 1 Jan 2020 17:36:28 +0800

C-h f exec-path mentions "Probably introduced at or before Emacs
version 22.1.", however, according to NEWS.27 the function exec-path
is introduced in Emacs 27.1. I checked that Emacs 24.5 doesn't provide
the function exec-path.

Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: bug-gnu-emacs <at> gnu.org, Xu Chunyang <xuchunyang56 <at> gmail.com>,
 38844 <at> debbugs.gnu.org
Subject: Re: bug#38844: 28.0.50;
 Incorrect result by help-fns--mention-first-release
Date: Wed, 01 Jan 2020 12:22:42 +0200

On January 1, 2020 11:36:28 AM GMT+02:00, Xu Chunyang <xuchunyang56 <at> gmail.com> wrote:
> C-h f exec-path mentions "Probably introduced at or before Emacs
> version 22.1.", however, according to NEWS.27 the function exec-path
> is introduced in Emacs 27.1. I checked that Emacs 24.5 doesn't provide
> the function exec-path.

That's because 'exec-path' the variable was introduced a long time ago.  The heuristics we use to search the NEWS files for symbols cannot distinguish between diffetent kinds that have the same names.

Message #14 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Xu Chunyang <xuchunyang56 <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: bug-gnu-emacs <at> gnu.org, 38844 <at> debbugs.gnu.org
Subject: Re: bug#38844: 28.0.50;
 Incorrect result by help-fns--mention-first-release
Date: Wed, 1 Jan 2020 19:38:08 +0800

Another case is the function file-size-human-readable, C-h f says it
probably is added in 27.1, but I checked it's available in 24.5,
though NEWS.27 does mention the function

> ** The function 'file-size-human-readable' accepts more optional arguments.

On Wed, Jan 1, 2020 at 6:22 PM Eli Zaretskii <eliz <at> gnu.org> wrote:
>
> On January 1, 2020 11:36:28 AM GMT+02:00, Xu Chunyang <xuchunyang56 <at> gmail.com> wrote:
> > C-h f exec-path mentions "Probably introduced at or before Emacs
> > version 22.1.", however, according to NEWS.27 the function exec-path
> > is introduced in Emacs 27.1. I checked that Emacs 24.5 doesn't provide
> > the function exec-path.
>
> That's because 'exec-path' the variable was introduced a long time ago.  The heuristics we use to search the NEWS files for symbols cannot distinguish between diffetent kinds that have the same names

Message #20 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Xu Chunyang <xuchunyang56 <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: bug-gnu-emacs <at> gnu.org, 38844 <at> debbugs.gnu.org
Subject: Re: bug#38844: 28.0.50;
 Incorrect result by help-fns--mention-first-release
Date: Wed, 1 Jan 2020 20:58:42 +0800

I just noticed 27.1 in "Probably introduced at or before Emacs version
27.1." is clickable and linked to relevant NEWS entry. It makes more
sense to me now.

On Wed, Jan 1, 2020 at 7:38 PM Xu Chunyang <xuchunyang56 <at> gmail.com> wrote:
>
> Another case is the function file-size-human-readable, C-h f says it
> probably is added in 27.1, but I checked it's available in 24.5,
> though NEWS.27 does mention the function
>
> > ** The function 'file-size-human-readable' accepts more optional arguments.
>
> On Wed, Jan 1, 2020 at 6:22 PM Eli Zaretskii <eliz <at> gnu.org> wrote:
> >
> > On January 1, 2020 11:36:28 AM GMT+02:00, Xu Chunyang <xuchunyang56 <at> gmail.com> wrote:
> > > C-h f exec-path mentions "Probably introduced at or before Emacs
> > > version 22.1.", however, according to NEWS.27 the function exec-path
> > > is introduced in Emacs 27.1. I checked that Emacs 24.5 doesn't provide
> > > the function exec-path.
> >
> > That's because 'exec-path' the variable was introduced a long time ago.  The heuristics we use to search the NEWS files for symbols cannot distinguish between diffetent kinds that have the same names

Message #26 received at 38844 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Xu Chunyang <xuchunyang56 <at> gmail.com>
Cc: 38844 <at> debbugs.gnu.org
Subject: Re: bug#38844: 28.0.50;
 Incorrect result by help-fns--mention-first-release
Date: Wed, 01 Jan 2020 18:32:15 +0200

> From: Xu Chunyang <xuchunyang56 <at> gmail.com>
> Date: Wed, 1 Jan 2020 19:38:08 +0800
> Cc: bug-gnu-emacs <at> gnu.org, 38844 <at> debbugs.gnu.org
> 
> Another case is the function file-size-human-readable, C-h f says it
> probably is added in 27.1, but I checked it's available in 24.5,
> though NEWS.27 does mention the function

Fixed.

Message #29 received at 38844 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Xu Chunyang <xuchunyang56 <at> gmail.com>
Cc: 38844 <at> debbugs.gnu.org
Subject: Re: bug#38844: 28.0.50; Incorrect result by
 help-fns--mention-first-release
Date: Mon, 30 Aug 2021 04:02:45 +0200

Xu Chunyang <xuchunyang56 <at> gmail.com> writes:

> C-h f exec-path mentions "Probably introduced at or before Emacs
> version 22.1.", however, according to NEWS.27 the function exec-path
> is introduced in Emacs 27.1. I checked that Emacs 24.5 doesn't provide
> the function exec-path.

These are produced heuristically, which is why the text says "probably".
To make these less probabilistic is the subject of bug#49631, so I'm
closing this bug report.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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