Date: Sat, 26 Mar 2011 03:55:12 -0500 From: Zhihao Yuan <lichray@gmail.com> To: Paul Schenkeveld <freebsd@psconsult.nl> Cc: freebsd-hackers@freebsd.org Subject: Re: [GSoC] About the idea: Unicode support in vi Message-ID: <AANLkTimUA2y8c2rMSpGH9z0fRq47KNka=qUMZgTi9D=5@mail.gmail.com> In-Reply-To: <20110326084537.GA18254@psconsult.nl> References: <AANLkTintkKzW=o%2B7Q53aMSpA1mmqC7aDF1wN8zHY_Wc%2B@mail.gmail.com> <86mxkm1erm.fsf@gmail.com> <AANLkTin3Wki6bnriNgWUy5JC68MDMVc4Y444tGWcKBQ7@mail.gmail.com> <86aaglx1ow.fsf@gmail.com> <AANLkTikLbU--J2aVa00tzxWb9GAvjfGnUGovwYaXXqhp@mail.gmail.com> <AANLkTimKzTrLA%2BW4a73D=aS8fy9npeqvrS8Ua3oNKrjf@mail.gmail.com> <AANLkTin=Y-z-Rt0cnd3MRg0JoSWJmhC3Uh2b32Bosgfi@mail.gmail.com> <AANLkTimDnA6jdj-MR7J2EGAQFn=%2BRrS9h32N5UWkaDUs@mail.gmail.com> <AANLkTinuQG2ew4R81861Ei7Czds0pGVFaD4ExheFpnnE@mail.gmail.com> <20110326084537.GA18254@psconsult.nl>
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On Sat, Mar 26, 2011 at 3:45 AM, Paul Schenkeveld <freebsd@psconsult.nl> wr= ote: > On Wed, Mar 23, 2011 at 08:20:07PM -0500, Zhihao Yuan wrote: >> On Wed, Mar 23, 2011 at 7:26 PM, Arnaud Lacombe <lacombar@gmail.com> wro= te: >> > Hi, >> > >> > On Wed, Mar 23, 2011 at 7:32 PM, Zhihao Yuan <lichray@gmail.com> wrote= : >> >> Among *all* the GNU/Linux distributions I used, they include a vim >> >> compiled in tiny mode (ln -s it to vi), which doubles the size of nvi= , >> >> in their base systems. A vim.tiny contains much more features compare= d >> >> with nvi, but it's not compatible with POSIX vi. >> >> >> > Let's compare the comparable, I don't really care if PCbsd ship vim as >> > its default, but FreeBSD as the base is not only aimed at desktop >> > specifically. So you should take into account that I may want to run >> > FreeBSD on an adm5120 board with 32MB of RAM, without having a text >> > editor consuming too much disk-space/ram. >> > >> > =C2=A0- Arnaud >> > >> >> If you really want to use vi in a 32MB mem environment, the ex-vi may >> make sense. It consumes 1600KB memory while nvi consumes 2000KB. Note >> that the ee editor uses same amount memory as ex-vi. >> >> So basically, if no one disagree that we can drop the infinite undo, >> multiple buffer, multiple window and some other potential missing >> features, we can replace the nvi in the base system with ex-vi. > > I like the idea of adding Unicode support to nvi but I hate the idea of > replacing nvi in the base system by something else. =C2=A0I've been there > before, when administering a heterogenous environment with Unix, BSD and > Linux systems, being a heavy user of vi, it's frustrating if commands in > various versions of vi do not behave *exactly* the same, e.g. different > versions of vi leave the cursor in different places after undo, the > effect of the repeat command (.) after an undo command, the availability > or not to do something like /pattern/z. to find and position the found > text in the middle of the screen so you can immediately see the context. > > Administering hundreds of FreeBSD systems at various sites would become > a nightmare if frequently used utilities in the base system do not > behave exactly the same between different builds, a true POLA violation > I think. =C2=A0I truly hope that adding unicode to nvi doesn't change the > behaviour of nvi, at least not when not using actually Unicode. I will improve nvi only, and I won't break the traditional functions. But your words reminds me that, perhaps the move of cursor is a problem for a mbytes-enabled vi. We will see. > > I think it makes more sense to grow a WITHOUT_NVI knob in buildworld so > that people building for embedded systems can exclude nvi and include > another version of vi when really pressed for space, like we can replace > the base systems sendmail by sendmail from ports or another MTA. > > Regards, > > Paul Schenkeveld > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org= " > --=20 Zhihao Yuan The best way to predict the future is to invent it.
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