From owner-freebsd-current@FreeBSD.ORG Sat Aug 30 11:56:02 2008 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A1F6C1065694 for ; Sat, 30 Aug 2008 11:56:02 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from mail12.syd.optusnet.com.au (mail12.syd.optusnet.com.au [211.29.132.193]) by mx1.freebsd.org (Postfix) with ESMTP id EBDDE8FC1A for ; Sat, 30 Aug 2008 11:56:01 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from server.vk2pj.dyndns.org (c122-106-215-175.belrs3.nsw.optusnet.com.au [122.106.215.175]) by mail12.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id m7UBtxPk022218 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sat, 30 Aug 2008 21:56:00 +1000 X-Bogosity: Ham, spamicity=0.000000 Received: from server.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by server.vk2pj.dyndns.org (8.14.2/8.14.2) with ESMTP id m7UBtxTS010581 for ; Sat, 30 Aug 2008 21:55:59 +1000 (EST) (envelope-from peter@server.vk2pj.dyndns.org) Received: (from peter@localhost) by server.vk2pj.dyndns.org (8.14.2/8.14.2/Submit) id m7UBtxSO010580 for freebsd-current@freebsd.org; Sat, 30 Aug 2008 21:55:59 +1000 (EST) (envelope-from peter) Date: Sat, 30 Aug 2008 21:55:59 +1000 From: Peter Jeremy To: freebsd-current@freebsd.org Message-ID: <20080830115559.GM86609@server.vk2pj.dyndns.org> References: <3cb459ed0808250952j572dfc35j2feb852a73de5ace@mail.gmail.com> <200808281718.m7SHISGL067492@lurza.secnetix.de> <3cb459ed0808290636r5eb389c8y6d4aafae1b8001cf@mail.gmail.com> <3cb459ed0808291708l581422c1pdb2e3cb2913ecaa7@mail.gmail.com> <20080830083901.GA2183@medusa.sysfault.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="nFBW6CQlri5Qm8JQ" Content-Disposition: inline In-Reply-To: <20080830083901.GA2183@medusa.sysfault.org> X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.18 (2008-05-17) Subject: Re: Unicode-based FreeBSD X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 30 Aug 2008 11:56:02 -0000 --nFBW6CQlri5Qm8JQ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2008-Aug-30 10:39:02 +0200, Marcus von Appen wrote: >I wonder, how backspacing will be implemented for complex scripts such >as the Indic one or Arabic, where two codepoints will be resolved to one >logical (and usually visible) character. IMHO, unless we want to embed the equivalent of pango in the kernel, the only realistic solution is to count unicode codepoints. >In my opinion that'd mean either that for codepoints, which are not >rendered, either the internal unicode set is used (for Arabic this'd be >form 1) or the user-visible one (form 2). In either of those case the >backspacing might appear broken to the user. It would be useful to know how other implementations work because I can't see how to avoid some degree of broken-ness without a complete CTF implementation. If we aim syscons at sysadmins then a degree of misbehaviour may be acceptable. >Creating a useful CJK font however will mostly mean to implement around >at least 1000-2000 characters ;-). The fonts are available in ports. I'm not sure if there are existing bit-mapped fonts but a TTF or similar font can be converted to a bitmap without major effort. Antialiasing would help with legibility. --=20 Peter Jeremy Please excuse any delays as the result of my ISP's inability to implement an MTA that is either RFC2821-compliant or matches their claimed behaviour. --nFBW6CQlri5Qm8JQ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAki5NU8ACgkQ/opHv/APuIefGwCgo1d0w1bYv/RDqyVVZjwbGXbL l8IAoJEpdpADIVDM1WkpxDxAVUfPgGBR =7mUC -----END PGP SIGNATURE----- --nFBW6CQlri5Qm8JQ--