From owner-freebsd-questions@freebsd.org Wed Jan 6 20:04:32 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C3607A65A72 for ; Wed, 6 Jan 2016 20:04:32 +0000 (UTC) (envelope-from ike@michaeleichorn.com) Received: from mx1.eichornenterprises.com (mx1.eichornenterprises.com [104.236.13.122]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mx1.eichornenterprises.com", Issuer "StartCom Class 1 Primary Intermediate Server CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 88D681472 for ; Wed, 6 Jan 2016 20:04:32 +0000 (UTC) (envelope-from ike@michaeleichorn.com) Received: from smtp.eichornenterprises.com (cpe-184-59-147-149.neo.res.rr.com [184.59.147.149]) by mx1.eichornenterprises.com (OpenSMTPD) with ESMTP id a089e072; Wed, 6 Jan 2016 15:04:23 -0500 (EST) Received: by smtp.eichornenterprises.com (OpenSMTPD) with ESMTPSA id 0d2b9e67 TLS version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO; Wed, 6 Jan 2016 15:04:23 -0500 (EST) Message-ID: <1452110676.9558.12.camel@michaeleichorn.com> Subject: Re: TERM=xterm lacking smcup and rmcup (alternate screen) From: "Michael B. Eichorn" To: Sebastian Gniazdowski , freebsd-questions@freebsd.org Date: Wed, 06 Jan 2016 15:04:36 -0500 In-Reply-To: References: Content-Type: multipart/signed; micalg="sha-256"; protocol="application/x-pkcs7-signature"; boundary="=-8XcWTewhRE9qax85kFoj" X-Mailer: Evolution 3.18.3 Mime-Version: 1.0 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Jan 2016 20:04:33 -0000 --=-8XcWTewhRE9qax85kFoj Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, 2016-01-06 at 19:38 +0100, Sebastian Gniazdowski wrote: > Hello > I want to criticize an approach taken in FreeBSD regarding the > alternate screen. It's not available in newcons. One person wrote > that's because Tekken doesn't have such feature, and newcons > implements Tekken. >=20 > That's maybe fine. However, newcons doesn't have it's own termcap. It > uses TERM=3Dxterm, which normally has rmcup and smcup. Some smart > person > thus decided to remove those codes from TERM=3Dxterm. You see what this > leads to? No alternate screen on X11. >=20 > Why doesn't newcon create it's own termcap entry? Why nobody cares > about trashed xterm screens when fullscreen applications are exiting. > In my software I've wrote a special function to handle FreeBSD > nuance: >=20 > https://github.com/psprint/zsh-cmd-architect/blob/master/zca#L65-L81 >=20 > But this should be fixed, really. Newcons could ignore rmcup and > smcup. Why remove them from TERM=3Dxterm, let newcons just ignore it. > FreeBSD could then still use TERM=3Dxterm for its virtual terminal. >=20 > Best regards, > Sebastian Gniazdowski Hi, Technical discussions like this are somewhat off-topic for this list. FreeBSD-questions is for 'user questions' and as such is primarily populated by users not developers. You probably want freebsd-hackers which is for 'Technical Discussions relating to FreeBSD'. 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