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From: Frank Terbeck <ft@bewatermyfriend.org>
To: Felipe Contreras <felipe.contreras@gmail.com>
Cc: zsh-workers@zsh.org
Subject: Re: Bug with sh emulation; shouldn't KSH_TYPESET be set?
Date: Mon, 30 Jan 2012 23:17:11 +0100	[thread overview]
Message-ID: <87y5so96oo.fsf@ft.bewatermyfriend.org> (raw)
In-Reply-To: <CAMP44s0Mji0OdU7K-ftazbwD2YYJzXzm1J1yEQOeWc0f2=zjMg@mail.gmail.com> (Felipe Contreras's message of "Mon, 30 Jan 2012 23:46:46 +0200")

Felipe Contreras wrote:
> Frank Terbeck <ft@bewatermyfriend.org> wrote:
[...]
>> So, I don't think it should be enabled.
>
> But it wouldn't hurt either, right? It would be nice to have some
> 'bash' emulation mode, but since there isn't any, why not enable this
> harmless option?

I'm unsure (personally, I wouldn't mind), as to whether the
argument-handling semantics of a random builtin can be changed with
POSIX in mind. Maybe someone with deeper understanding of the standard
can shed some light here.

I'd just do

    local foo="$(bar --baz)"

and be done with it. That should be portable over pretty much every
bourne-line shell that supports $(...) and `local',

>> FWIW, dash and posh behave like zsh's sh-mode here. Ksh93 doesn't work
>> at all, because it has no `local' (only typeset). Mksh, pdksh and bash
>> work like KSH_TYPESET was set in zsh.
>
> Hmm, I see, but there's no bash emulation mode =/
>
> I guess it's time to compare the differences between ksh and sh
> emulation to see which is closer.

Unsure, due to fairly limited knowledge of bash's extensions to POSIX.

Regards, Frank

-- 
In protocol design, perfection has been reached not when there is
nothing left to add, but when there is nothing left to take away.
                                                  -- RFC 1925


  reply	other threads:[~2012-01-30 22:28 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-30 20:21 Felipe Contreras
2012-01-30 20:43 ` Frank Terbeck
2012-01-30 21:46   ` Felipe Contreras
2012-01-30 22:17     ` Frank Terbeck [this message]
2012-01-30 22:20     ` Vincent Lefevre
2012-01-31  9:43 ` Peter Stephenson

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