GNU bug report logs - #64533
[PATCH] Support displaying function name in the header line

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#64533: closed ([PATCH] Support displaying function name in
 the header line)
Date: Sat, 15 Jul 2023 08:03:02 +0000

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Your message dated Sat, 15 Jul 2023 11:02:50 +0300
with message-id <83v8eld2l1.fsf <at> gnu.org>
and subject line Re: bug#64533: [PATCH] Support displaying function name in the header line
has caused the debbugs.gnu.org bug report #64533,
regarding [PATCH] Support displaying function name in the header line
to be marked as done.

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help-debbugs <at> gnu.org.)


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64533: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=64533
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From: Spencer Baugh <sbaugh <at> janestreet.com>
To: bug-gnu-emacs <at> gnu.org
Subject: [PATCH] Support displaying function name in the header line
Date: Sat, 08 Jul 2023 13:56:23 -0400

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Tags: patch


In some languages, the function name as displayed in the mode-line by
which-func-mode can be quite long.  It's useful to be able to display
it in the header-line instead.  Let's support that.

This was my original motivation for Bug#63825, so that the header line
was not displayed when which-func-mode wasn't enabled, but just teaching
which-function-mode to handle this is much easier.

* lisp/progmodes/which-func.el (which-func-use-header-line)
(which-func-use-mode-line): Add.
(which-func-try-to-enable): Support which-func-use-header-line.
(which-func--disable): Add, to support which-func-use-header-line.
(which-func-ff-hook, which-func-update-1): Use which-func--disable.

In GNU Emacs 29.0.92 (build 3, x86_64-pc-linux-gnu, X toolkit, cairo
 version 1.15.12, Xaw scroll bars) of 2023-07-05 built on
 igm-qws-u22796a
Repository revision: 4127aa427fc7e2cb5b3dbae9264c2ee628474db4
Repository branch: emacs-29
Windowing system distributor 'The X.Org Foundation', version 11.0.12011000
System Description: CentOS Linux 7 (Core)

Configured using:
 'configure --config-cache --with-x-toolkit=lucid
 --with-gif=ifavailable'

[0001-Support-displaying-function-name-in-the-header-line.patch (text/patch, attachment)]

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From: Eli Zaretskii <eliz <at> gnu.org>
To: sbaugh <at> catern.com
Cc: sbaugh <at> janestreet.com, schwab <at> linux-m68k.org, 64533-done <at> debbugs.gnu.org
Subject: Re: bug#64533: [PATCH] Support displaying function name in the header
 line
Date: Sat, 15 Jul 2023 11:02:50 +0300

> From: sbaugh <at> catern.com
> Date: Sun, 09 Jul 2023 17:26:09 +0000 (UTC)
> Cc: Spencer Baugh <sbaugh <at> janestreet.com>, schwab <at> linux-m68k.org,
> 	64533 <at> debbugs.gnu.org
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> >> +This should be a list of symbols.  If it contains 'mode, display
> >> +in the mode line.  If it contains 'header, display in the header
> >> +line."
> >
> > Which leaves it to the user to deduce that '(mode header) means both:
> > yet another reason not to prefer this kind of values in user options.
> >
> > It also doesn't tell how to disable this display: another riddle left
> > to the user to solve.
> >
> > Let's always remember that Emacs users are not necessarily experienced
> > Lispers.  User options should not be "tricky", especially where such
> > trickery is unjustified.  And the doc strings should not pose riddles,
> > however logical they seem to us.
> >
> > Thanks.
> 
> Fair point.  Back to the single symbol.

Thanks, installed on master, and closing the bug.

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