From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Newsgroups: gmane.emacs.help Subject: Re: Does code exist to check if a key sequence is valid for Emacs running in terminal mode? Date: Fri, 12 Jul 2024 15:07:40 +0200 Message-ID: References: <874j8ug4a7.fsf@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="bRH0NXm4EJ0//Rri" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31027"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Pierre Rouleau , help-gnu-emacs To: Robert Pluim Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jul 12 15:08:32 2024 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1sSG0m-0007oN-58 for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 12 Jul 2024 15:08:32 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sSG06-0002hP-J9; Fri, 12 Jul 2024 09:07:50 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sSG04-0002hH-MZ for help-gnu-emacs@gnu.org; Fri, 12 Jul 2024 09:07:48 -0400 Original-Received: from mail.tuxteam.de ([5.199.139.25]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sSG01-0007MC-7x for help-gnu-emacs@gnu.org; Fri, 12 Jul 2024 09:07:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tuxteam.de; s=mail; h=From:In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=AyCk/HEnnIv1J5Y5nrUY9fh4cep+zHzQdWZinbNaebY=; b=WgxkcukDrGDpjFD3FGNjB3tAGt mGIPo1SEf4tNQlOzUlyLCLlId0a81UzII1nf7Uxuc+T01Dxj0yiAWJtFiNe3DYCpjTajOnszXVEYI vTvn800RrV4K/7JO5AoKWSvDnsHVwR3skqSRzaksqwsOvpzRYKciCbJpSv7tnZUPi4bsnVUysoOeH 8B9pLjEDHIrdl4yaP3KqdlBuC7aGL9MY0CZAzzq3FTNkZ4KTGQ/6f1Tfn+VkYSS8RQ8YU5cBYLILA 8DFuDPzc6GDDEPv3SSorBfX7fUEDWVnq2rekO0zs4w6AWE/+Dq23AQr8k2z5HSWswiu8l3gRohDkb iOhzTTyQ==; Original-Received: from tomas by mail.tuxteam.de with local (Exim 4.94.2) (envelope-from ) id 1sSFzw-0005Ds-IW; Fri, 12 Jul 2024 15:07:40 +0200 Content-Disposition: inline In-Reply-To: <874j8ug4a7.fsf@gmail.com> Received-SPF: pass client-ip=5.199.139.25; envelope-from=tomas@tuxteam.de; helo=mail.tuxteam.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:147159 Archived-At: --bRH0NXm4EJ0//Rri Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jul 12, 2024 at 02:53:36PM +0200, Robert Pluim wrote: > >>>>> On Fri, 12 Jul 2024 08:14:52 -0400, Pierre Rouleau said: >=20 > Pierre> Hi all, > Pierre> Does Emacs already have a predicate function that can be used= to check if > Pierre> the specified key sequence is valid for Emacs running in term= inal mode? >=20 > Not that I know of, but Emacs always has functionality I don=CA=BCt know = of > :-) >=20 > Pierre> For example, "C-;" is not accessible on Emacs running in term= inal mode > Pierre> because this is not an ASCII control character. It's availabl= e for Emacs > Pierre> running in graphical environment, but not in terminal mode. >=20 > Pierre> Is there something similar already available or one would sim= ply wrap > Pierre> describe-key and catch the error to check? >=20 > I=CA=BCm in a terminal frame: >=20 > (describe-key (kbd "C-;")) =3D> > #("C-; is undefined" 0 3 (face help-key-binding font-lock-face help-k= ey-binding)) >=20 > which is exactly what you get in a GUI frame. >=20 > I think the best you can do is bind the key. If it=CA=BCs available, it w= ill work. OK, negatively speaking, on a terminal CTRL zeros bit 6 (counting from LSB, starting with 0) to reach the control codes 0..1f (hex). So it only makes sense with the character codes 40..5f hex (that's '@'..'_'). Everything else is probably GUIsh. Cheers --=20 t --bRH0NXm4EJ0//Rri Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQRp53liolZD6iXhAoIFyCz1etHaRgUCZpEqlgAKCRAFyCz1etHa RmOFAJ0WI2XL1Y3KO9mBel4/aA5X6ewxIACdEs2Y1JyIdQkzVtMuxkDlugEmDKY= =XTVs -----END PGP SIGNATURE----- --bRH0NXm4EJ0//Rri--