From: Peter Stephenson <p.stephenson@samsung.com>
To: zsh workers <zsh-workers@zsh.org>
Subject: Re: Anyone want to help make zsh/db/gdbm work?
Date: Fri, 30 Jan 2015 08:59:49 +0000 [thread overview]
Message-ID: <20150130085949.4d44007d@pwslap01u.europe.root.pri> (raw)
In-Reply-To: <150129140625.ZM14730@torch.brasslantern.com>
On Thu, 29 Jan 2015 14:06:25 -0800
Bart Schaefer <schaefer@brasslantern.com> wrote:
> ztie() still calls createspecialhash() which only succeeds if the
> parameter is not set. So to make a ztie parameter local, one has
> to do this:
>
> (){
> local foo
> unset foo
> ztie -d db/gdbm -f gdbmdb foo
> # $foo is now a local ztie
> }
>
> Still, this makes wrong the part of the doc I wrote about it always
> creating a global parameter.
>
> Should we document the need to both declare and unset the parameter,
> or should we add an implicit unset to ztie() ?
It should probably unset the variable; any other attempt to reuse a
variable declared local (e.g. by declaring it local as a scalar and
assigning it as an array) will silently do that, so I don't see why this
should be different.
Arguably that should be down in createparam(), which isn't told the full
story of the parameter you want to create; stuff like whether it's being
declared local or not, or whether you need to change the type, is
handled up above, creating what's currently a fairly monstrous
interface with createparam() acting as a backend to a lot of half-baked
logic.
pws
next prev parent reply other threads:[~2015-01-30 9:00 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-23 5:19 Bart Schaefer
2015-01-23 5:37 ` ZyX
2015-01-23 5:59 ` Bart Schaefer
2015-01-23 15:49 ` ZyX
2015-01-23 19:47 ` Peter Stephenson
2015-01-23 20:00 ` ZyX
2015-01-23 20:16 ` Aaron Schrab
2015-01-23 20:33 ` Mikael Magnusson
2015-01-26 12:11 ` Peter Stephenson
2015-01-29 20:46 ` Peter Stephenson
2015-01-29 22:06 ` Bart Schaefer
2015-01-30 8:59 ` Peter Stephenson [this message]
2015-01-30 19:56 ` Peter Stephenson
2015-01-30 20:03 ` Bart Schaefer
2015-02-02 9:46 ` Peter Stephenson
2015-02-03 10:22 ` Peter Stephenson
2015-01-31 3:21 ` Bart Schaefer
2015-01-31 3:37 ` Bart Schaefer
2015-02-01 19:57 ` Bart Schaefer
2015-02-01 21:49 ` Bart Schaefer
2015-02-02 5:18 ` ZyX
2015-02-02 17:33 ` Peter Stephenson
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