From: Peter Stephenson <p.w.stephenson@ntlworld.com>
To: <zsh-workers@zsh.org>
Subject: Re: Bug in sh emulation
Date: Mon, 12 Dec 2011 19:16:25 +0000 [thread overview]
Message-ID: <20111212191625.0d0e09b9@pws-pc.ntlworld.com> (raw)
In-Reply-To: <111212101000.ZM1865@torch.brasslantern.com>
On Mon, 12 Dec 2011 10:10:00 -0800
Bart Schaefer <schaefer@brasslantern.com> wrote:
> On Dec 12, 4:06pm, Peter Stephenson wrote:
> }
> } I think this must be OK (unless, of course, something is failing where I
> } don't see it). The chunk of code in entersubsh() we've been staring at
> } is the one that's only executed if there's no group leader, and in that
> } case it creates its own process group and attaches that to the tty
>
> Right. My lingering doubt is that "no group leader" doesn't necessarily
> mean "no other group attached to the tty", if we've been given some wacky
> structure like
>
> (emulate sh -c "(foo | bar)" | emulate zsh -c "(baz | ding)") | read -E
The last patch attempted to do a bit better in limiting the cases where
the MONITOR option was left on to a straightforward subshell. In this
example, the first fork is for a pipeline rather than subshell, so
MONITOR should be turned off before the subshell is started --- it's
perfectly possible I've missed a passage through the maze that should do
that, though.
We might well get into problems if MONITOR is explicitly turned back on,
but I don't have so much sympathy there.
--
Peter Stephenson <p.w.stephenson@ntlworld.com>
Web page now at http://homepage.ntlworld.com/p.w.stephenson/
next prev parent reply other threads:[~2011-12-12 19:16 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-10 1:39 Ivan S. Freitas
2011-12-10 2:47 ` Bart Schaefer
2011-12-10 3:40 ` Bart Schaefer
2011-12-10 18:15 ` Peter Stephenson
2011-12-10 19:40 ` Peter Stephenson
2011-12-10 23:28 ` Peter Stephenson
2011-12-11 19:39 ` Peter Stephenson
2011-12-11 20:20 ` Peter Stephenson
2011-12-11 20:56 ` Peter Stephenson
2011-12-11 23:39 ` Bart Schaefer
2011-12-12 10:01 ` Peter Stephenson
2011-12-12 10:14 ` Peter Stephenson
2011-12-12 15:44 ` Bart Schaefer
2011-12-12 16:06 ` Peter Stephenson
2011-12-12 18:10 ` Bart Schaefer
2011-12-12 19:16 ` Peter Stephenson [this message]
2011-12-11 22:37 ` Bart Schaefer
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