GNU bug report logs - #17782
24.3; package.el: searches don't see elided chars of package name

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

From: Samuel Bronson <naesten <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3; package.el: searches don't see elided chars of package name
Date: Sat, 14 Jun 2014 16:58:46 -0400

When I search within the *Packages* buffer, my searches can't match on
parts of the package name that got elided to fit into the column width.

Couldn't this be remedied by displaying the ellipsis using an overlay,
rather than actually including it in the buffer text?

It would also be nice if there was some way to customize the column
widths.

(Also, when the user hovers the mouse over a truncated field in a
columnview, it's traditional to display the un-truncated text in a
"tooltip" that appears exactly on top of the truncated text, at least
when that's possible without the tooltip going past the edge of the
screen.  I'm not sure if an actual Emacs tooltip would be the best way
to do it though.  May not be worth bothering with, though, since it
sounds like an awful lot of work to do properly ...)

(One other thing that tends to bug me: when isearch scrolls my window
to the right because it matched something in a long summary, the next
match doesn't reverse this, and I *CANNOT SEE THE PACKAGE NAMES*.)

In GNU Emacs 24.3.1 (i486-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2014-05-16 on babin, modified by Debian
Windowing system distributor `Colin Harrison', version 11.0.60900031
System Description:	Debian GNU/Linux testing (jessie)

Configured using:
 `configure '--build' 'i486-linux-gnu' '--build' 'i486-linux-gnu'
 '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib'
 '--localstatedir=/var/lib' '--infodir=/usr/share/info'
 '--mandir=/usr/share/man' '--with-pop=yes'
 '--enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.3/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.3/site-lisp:/usr/share/emacs/site-lisp'
 '--with-crt-dir=/usr/lib/i386-linux-gnu' '--with-x=yes'
 '--with-x-toolkit=lucid' '--with-toolkit-scroll-bars' '--without-gconf'
 '--without-gsettings' 'build_alias=i486-linux-gnu' 'CFLAGS=-g -O2
 -fstack-protector --param=ssp-buffer-size=4 -Wformat
 -Werror=format-security -Wall' 'LDFLAGS=-Wl,-z,relro'
 'CPPFLAGS=-D_FORTIFY_SOURCE=2''

Important settings:
  value of $LC_COLLATE: C
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Package Menu

Minor modes in effect:
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  diff-auto-refine-mode: t
  xterm-mouse-mode: t
  show-paren-mode: t
  recentf-mode: t
  tooltip-mode: t
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  tool-bar-mode: t
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  file-name-shadow-mode: t
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  auto-encryption-mode: t
  auto-compression-mode: t
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/usr/share/emacs24/site-lisp/mailcrypt/mc-toplev hides /usr/share/emacs/site-lisp/mailcrypt/mc-toplev
/usr/share/emacs24/site-lisp/mailcrypt/mc-remail hides /usr/share/emacs/site-lisp/mailcrypt/mc-remail
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Message #8 received at 17782 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Samuel Bronson <naesten <at> gmail.com>
Cc: 17782 <at> debbugs.gnu.org
Subject: Re: bug#17782: 24.3; package.el: searches don't see elided chars of
 package name
Date: Mon, 07 Oct 2019 20:13:33 +0200

Samuel Bronson <naesten <at> gmail.com> writes:

> When I search within the *Packages* buffer, my searches can't match on
> parts of the package name that got elided to fit into the column width.
>
> Couldn't this be remedied by displaying the ellipsis using an overlay,
> rather than actually including it in the buffer text?

I've now done this in Emacs 27 -- in all tabulated list modes, which may
or may not be controversial.

If people feel like this is a bad change, feel free to revert.  It seems
nice to me: `C-s' works more reliably in these buffers, even when bits
are shortened.  But perhaps there's a bad user interaction somewhere...

> It would also be nice if there was some way to customize the column
> widths.

In Emacs 27, the '}' command can be used to widen column widths.

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

Message #15 received at 17782 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Samuel Bronson <naesten <at> gmail.com>, 17782 <at> debbugs.gnu.org
Subject: Re: bug#17782: 24.3; package.el: searches don't see elided chars of
 package name
Date: Mon, 7 Oct 2019 20:28:48 +0200

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> I've now done this in Emacs 27 -- in all tabulated list modes, which may
> or may not be controversial.

Sounds like a good change to me, FWIW.  Thanks.

Best regards,
Stefan Kangas

Message #18 received at 17782 <at> debbugs.gnu.org (full text, mbox):

From: "Basil L. Contovounesios" <contovob <at> tcd.ie>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Samuel Bronson <naesten <at> gmail.com>, 17782 <at> debbugs.gnu.org
Subject: Re: bug#17782: 24.3; package.el: searches don't see elided chars of
 package name
Date: Mon, 07 Oct 2019 19:37:20 +0100

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> Samuel Bronson <naesten <at> gmail.com> writes:
>
>> When I search within the *Packages* buffer, my searches can't match on
>> parts of the package name that got elided to fit into the column width.
>>
>> Couldn't this be remedied by displaying the ellipsis using an overlay,
>> rather than actually including it in the buffer text?
>
> I've now done this in Emacs 27 -- in all tabulated list modes, which may
> or may not be controversial.
>
> If people feel like this is a bad change, feel free to revert.  It seems
> nice to me: `C-s' works more reliably in these buffers, even when bits
> are shortened.  But perhaps there's a bad user interaction somewhere...

I'm curious to know why the ellipsis is added as a display property in
truncate-string-to-width[1] instead of making the relevant text
invisible[2].  Isn't this behaviour too specific to this use case to
justify extending truncate-string-to-width with it?

[1]: Use text properties instead of truncating strings
67830e7569 2019-10-07 20:11:26 +0200
https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=67830e756911f0c262bb3a447e58b9ff6739a60f

[2]: (info "(elisp) Invisible Text")

Thanks,

-- 
Basil

Message #21 received at 17782 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: "Basil L. Contovounesios" <contovob <at> tcd.ie>
Cc: Samuel Bronson <naesten <at> gmail.com>, 17782 <at> debbugs.gnu.org
Subject: Re: bug#17782: 24.3; package.el: searches don't see elided chars of
 package name
Date: Tue, 08 Oct 2019 18:14:31 +0200

"Basil L. Contovounesios" <contovob <at> tcd.ie> writes:

> I'm curious to know why the ellipsis is added as a display property in
> truncate-string-to-width[1] instead of making the relevant text
> invisible[2].  Isn't this behaviour too specific to this use case to
> justify extending truncate-string-to-width with it?

Sorry, I don't quite understand?  Making the text invisible would make
it look visually different than what it used to look like, so the
ellipsis have to be added to avoid changing the look.

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

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