GNU bug report logs -
#70157
29.3; Bad mouseover help for mode-line `d'
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Reported by: Drew Adams <drew.adams <at> oracle.com>
Date: Wed, 3 Apr 2024 03:36:02 UTC
Severity: normal
Found in version 29.3
Done: Eli Zaretskii <eliz <at> gnu.org>
Bug is archived. No further changes may be made.
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:
bug#70157
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emacs
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(Wed, 03 Apr 2024 03:36:02 GMT)
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Drew Adams <drew.adams <at> oracle.com>
:
New bug report received and forwarded. Copy sent to
bug-gnu-emacs <at> gnu.org
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(Wed, 03 Apr 2024 03:36:02 GMT)
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
The default mouseover help text when editing a buffer in emacs-lisp-mode
is this:
"Using old dynamic scoping mode"
That's incorrect and misleading.
1. There's no "NEW dynamic scoping mode".
2. Lexical binding is not new - it's as old as the hills.
Even for Emacs it's not new - it's been available for quite a while.
3. There's technically no such thing as "dynamic scope" - that's a
convenient misnomer. The Common Lisp doc makes this clear:
"In addition to the above terms, it is convenient to define dynamic
scope to mean indefinite scope and dynamic extent. Thus we speak of
`special' variables as having dynamic scope, or being dynamically
scoped, because they have indefinite scope and dynamic extent: a
special variable can be referred to anywhere as long as its binding
is currently in effect.
The term `dynamic scope' is a misnomer. Nevertheless it is both
traditional and useful."
https://www.cs.cmu.edu/Groups/AI/html/cltl/clm/node43.html#SECTION00700000000000000000
Emacs Lisp's approach to lexical and dynamic binding is very close to
that of Common Lisp, and it will become even closer (essentially the
same) when lexical binding becomes the default.
Emacs Lisp is not Scheme. Dynamic binding is important to Emacs. RMS's
arguments about this make perfect sense today, as they did decades ago:
http://www.gnu.org/software/emacs/emacs-paper.html#SEC17.
What the `d' help should say is that dynamic binding is currently the
default in the buffer. Nothing more, nothing less. Just the facts,
ma'am.
In GNU Emacs 29.3 (build 2, x86_64-w64-mingw32) of 2024-03-24 built on
AVALON
Windowing system distributor 'Microsoft Corp.', version 10.0.19045
System Description: Microsoft Windows 10 Pro (v10.0.2009.19045.4170)
Configured using:
'configure --with-modules --without-dbus --with-native-compilation=aot
--without-compress-install --with-sqlite3 --with-tree-sitter
CFLAGS=-O2'
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Eli Zaretskii <eliz <at> gnu.org>
:
You have taken responsibility.
(Wed, 03 Apr 2024 11:14:03 GMT)
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Drew Adams <drew.adams <at> oracle.com>
:
bug acknowledged by developer.
(Wed, 03 Apr 2024 11:14:03 GMT)
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Message #10 received at 70157-done <at> debbugs.gnu.org (full text, mbox):
tags 70157 notabug wontfix
thanks
> Date: Wed, 3 Apr 2024 03:34:48 +0000
> From: Drew Adams via "Bug reports for GNU Emacs,
> the Swiss army knife of text editors" <bug-gnu-emacs <at> gnu.org>
>
> The default mouseover help text when editing a buffer in emacs-lisp-mode
> is this:
>
> "Using old dynamic scoping mode"
>
> That's incorrect and misleading.
I disagree. I see no reason to change what we have, and so I'm
closing this non-bug.
bug archived.
Request was from
Debbugs Internal Request <help-debbugs <at> gnu.org>
to
internal_control <at> debbugs.gnu.org
.
(Wed, 01 May 2024 11:24:11 GMT)
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This bug report was last modified 2 days ago.
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