On 2025-04-12, Lawrence D'Oliveiro wrote:

On Wed, 9 Apr 2025 13:26:48 +0100, Geoff Clare wrote:

It became an IEEE standard in 1992 (and ISO in 1993) for
POSIX-conforming shells, and has remained standard to this day. IEEE
chose not to include emacs mode, so effectively it is emacs mode that
was treated as obsolete (in 1992).

Nevertheless, that is the one that is most commonly used in *nix systems today.

Oh, I didn't know Emacs edit mode was that common, which other shells
support it besides GNU bash?

(Yes, we're in comp.os.linux.misc, but, following the mention of "*nix systems", I'm talking about shells in all such systems, not just
linux-based systems.)

--
Nuno Silva

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On Mon, 14 Apr 2025 09:47:22 +0100, Nuno Silva wrote:

Oh, I didn't know Emacs edit mode was that common, which other shells
support it besides GNU bash?

It’s not the shell specifically that supports it, remember. It’s actually
a separate library called GNU readline, that is also used by a lot of
other software.

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In comp.os.linux.misc, Lawrence D'Oliveiro <ldo@nz.invalid> wrote:

On Mon, 14 Apr 2025 09:47:22 +0100, Nuno Silva wrote:

Oh, I didn't know Emacs edit mode was that common, which other shells
support it besides GNU bash?

It’s not the shell specifically that supports it, remember. It’s actually

Well akshuly. In ksh it is built into the shell, not gnu. That's how I
used it with the shells on HP-UX and Solaris.

It’s not the shell specifically that supports it, remember. It’s actually a separate library called GNU readline, that is also used by a lot of
other software.

Gnu readline is used in bc(1), for example, which lets me have have vi
mode there, but it has also caused the bc developers to lose the ability
to have blank lines from a user hitting enter twice.

I complained to bug-bc@gnu.org in 2022 about this and got back a reply
from Phil Nelson:

| This appears to be a GNU Readline issue. Readline never sends the
| blank line to bc. I've tried to track it down, but with no success.

Elijah
------
can't think of any other programs where he encounters readline()

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On Di 15 Apr 2025 at 23:28, Eli the Bearded <*@eli.users.panix.com> wrote:

Well akshuly. In ksh it is built into the shell, not gnu. That's how I
used it with the shells on HP-UX and Solaris.

In zsh it is the same - no readline there.

'Andreas
--
ceterum censeo redmondinem esse delendam

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On Tue, 15 Apr 2025 23:28:35 -0000 (UTC), Eli the Bearded wrote:

can't think of any other programs where he encounters readline()

<https://docs.python.org/3/library/readline.html>

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In comp.os.linux.misc, Lawrence D'Oliveiro <ldo@nz.invalid> wrote:

On Tue, 15 Apr 2025 23:28:35 -0000 (UTC), Eli the Bearded wrote:

can't think of any other programs where he encounters readline()

<https://docs.python.org/3/library/readline.html>

That's just a wrapper to use in in Python scripts that interact with
the user. I do not believe I have ever encountered a script using it.
But that does remind me that the Perl CPAN shell can optionally use
the Perl wrapper of the readline library. I don't usually have that
Perl wrapper installed however.

Elijah
------
knows it is used in programs outside his concern

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On 2025-04-14, Lawrence D'Oliveiro wrote:

On Mon, 14 Apr 2025 09:47:22 +0100, Nuno Silva wrote:

Oh, I didn't know Emacs edit mode was that common, which other shells
support it besides GNU bash?

It’s not the shell specifically that supports it, remember. It’s actually a separate library called GNU readline, that is also used by a lot of
other software.

What is "*the* shell"?

The question is the same, whether this is implemented internally or in a separate library (GNU or non-GNU). Are Emacs keybindings that usual in
UNIX shells?

--
Nuno Silva

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On Fri, 18 Apr 2025 04:22:27 -0000 (UTC), Eli the Bearded wrote:

In comp.os.linux.misc, Lawrence D'Oliveiro <ldo@nz.invalid> wrote:

On Tue, 15 Apr 2025 23:28:35 -0000 (UTC), Eli the Bearded wrote:

can't think of any other programs where he encounters readline()

<https://docs.python.org/3/library/readline.html>

That's just a wrapper to use in in Python scripts that interact with
the user.

ldo@theon:~> apt-cache rdepends libreadline8t64 | wc -l
325

Do you want a full list?

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In comp.os.linux.misc, Lawrence D'Oliveiro <ldo@nz.invalid> wrote:

On Fri, 18 Apr 2025 04:22:27 -0000 (UTC), Eli the Bearded wrote:

That's just a wrapper to use in in Python scripts that interact with
the user.

ldo@theon:~> apt-cache rdepends libreadline8t64 | wc -l
325

Do you want a full list?

The things using libreadline and the things using the Python libreadline
are different. sqlite3, for example, is in the list, but isn't using
Python. I've already pointed out there's a Perl libreadline library,
too.

(I perused the full list on my system and very few were things that I
have run in say, the last 12 months, but sqlite3 and gdb are there and
I've used those.)

Elijah
------
not quite sure why inkscape is on the list

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