From: Akib Azmain Turja <akib@disroot.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: Emacs doesn't use only terminfo database to identify a terminal
Date: Sat, 10 Sep 2022 17:27:39 +0600 [thread overview]
Message-ID: <877d2b5v10.fsf@disroot.org> (raw)
In-Reply-To: <83zgf7a570.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 10 Sep 2022 13:34:27 +0300")
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Eli Zaretskii <eliz@gnu.org> writes:
>> From: Akib Azmain Turja <akib@disroot.org>
>> Date: Sat, 10 Sep 2022 16:11:51 +0600
>>
>> Emacs uses something more than just a terminfo database to determine the
>> capabilities of a terminal. For example, if I run Emacs in St, keys
>> like C-<left>, M-<up> work. Then I modified the terminal name by
>> changing the terminfo source file (st-256color -> est-256color). If I
>> run Emacs with the new terminfo database, keys like C-<down>, M-<right>
>> no longer work, although infocmp shows that both (st-256color and
>> est-256color) terminfo databases contain identical capabilities. Now if
>> I rename the terminal name to something like "st-..." (I used
>> "st-foo-bar-baz"), those keys work again.
>>
>> But why? Who is the culprit here, Emacs or ncurses?
>
> See lisp/term/st.el, it's part of the puzzle, I think.
>
Yeah, it is. Putting the following in my early-init.el make those
C-<up> keys work:
--8<---------------cut here---------------start------------->8---
(setq term-file-aliases
'(("apollo" . "vt100")
("vt102" . "vt100")
("vt125" . "vt100")
("vt201" . "vt200")
("vt220" . "vt200")
("vt240" . "vt200")
("vt300" . "vt200")
("vt320" . "vt200")
("vt400" . "vt200")
("vt420" . "vt200")
("alacritty" . "xterm")
("est" . "st")
("foot" . "xterm")))
--8<---------------cut here---------------end--------------->8---
Thanks, I just found that those keys are defined in xterm-function-map
in lisp/term/xterm.el.
--
Akib Azmain Turja
Find me on Mastodon at @akib@hostux.social.
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prev parent reply other threads:[~2022-09-10 11:27 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-10 10:11 Emacs doesn't use only terminfo database to identify a terminal Akib Azmain Turja
2022-09-10 10:34 ` Eli Zaretskii
2022-09-10 11:27 ` Akib Azmain Turja [this message]
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