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Date:      Wed, 23 Mar 2011 15:36:04 -0500
From:      Zhihao Yuan <lichray@gmail.com>
To:        Pan Tsu <inyaoo@gmail.com>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: [GSoC] About the idea: Unicode support in vi
Message-ID:  <AANLkTikLbU--J2aVa00tzxWb9GAvjfGnUGovwYaXXqhp@mail.gmail.com>
In-Reply-To: <86aaglx1ow.fsf@gmail.com>
References:  <AANLkTintkKzW=o%2B7Q53aMSpA1mmqC7aDF1wN8zHY_Wc%2B@mail.gmail.com> <86mxkm1erm.fsf@gmail.com> <AANLkTin3Wki6bnriNgWUy5JC68MDMVc4Y444tGWcKBQ7@mail.gmail.com> <86aaglx1ow.fsf@gmail.com>

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On Wed, Mar 23, 2011 at 11:05 AM, Pan Tsu <inyaoo@gmail.com> wrote:
> Zhihao Yuan <lichray@gmail.com> writes:
>
>>> Why not just use "traditional vi"?
>>>
>>> =C2=A0 http://ex-vi.sourceforge.net/ (lives under editors/2bsd-vi)
>>
>> This one lacks of many feature, compared with nvi.
>
> nvi also lacks some features, e.g. lisp, modelines, sourceany.
> ex-vi is more lightweight
>
> =C2=A0# both built with DEBUG_FLAGS=3D-ggdb + mg(1) for reference
>
> =C2=A0$ =C2=A0du -Ah *
> =C2=A01.9M =C2=A0 =C2=A0nvi
> =C2=A0556K =C2=A0 =C2=A0ex-vi
> =C2=A0505K =C2=A0 =C2=A0mg
>
> =C2=A0$ size *
> =C2=A0 =C2=A0 text =C2=A0 =C2=A0data =C2=A0 =C2=A0 bss =C2=A0 =C2=A0 dec =
=C2=A0 =C2=A0 hex filename
> =C2=A0 329080 =C2=A0 =C2=A01952 =C2=A0 =C2=A04528 =C2=A0335560 =C2=A0 51e=
c8 nvi
> =C2=A0 175675 =C2=A0 =C2=A05048 =C2=A0233024 =C2=A0413747 =C2=A0 65033 ex=
-vi
> =C2=A0 128570 =C2=A0 =C2=A09760 =C2=A0 10184 =C2=A0148514 =C2=A0 24422 mg

nvi is a rewrite of the original vi, so this only shows that the new
implementation uses more symbols. The actual binary results are just a
120K difference.

>
>> I'm not sure whether the FreeBSD system administrators (who opens 100
>> ssh sessions) agree with that to replace the nvi in base system with
>> this one.
>
> Do they expect more features beyond POSIX vi?

Like multiple windows. This has been discussed y other BSDs before.

>
>> However, it's source code can be a great reference for a mbyte-capable
>> nvi.
>

--=20
Zhihao Yuan
The best way to predict the future is to invent it.



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