From: Bart Schaefer <schaefer@brasslantern.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: PATCH: functions with redirections
Date: Thu, 02 Oct 2014 08:54:27 -0700 [thread overview]
Message-ID: <141002085427.ZM12149@torch.brasslantern.com> (raw)
In-Reply-To: <20141002093509.789ff912@pwslap01u.europe.root.pri>
(Sorry for the extensive context for short responses.)
On Oct 2, 9:35am, Peter Stephenson wrote:
}
} On Wed, 01 Oct 2014 21:07:41 -0700
} Bart Schaefer <schaefer@brasslantern.com> wrote:
} > On Oct 1, 8:17pm, Peter Stephenson wrote:
} > }
} > } On Mon, 29 Sep 2014 14:37:35 -0700
} > } Bart Schaefer <schaefer@brasslantern.com> wrote:
} > } >
} > } > foo () { { echo foo } >&3 }
} >
} > } +function is executed. Any variables in the redirection are expanded
} > } +at the point the function is executed, but outside the function scope.
}
} It doesn't make any obvious practical difference simply to expanding
} variables given that no variables appear in the function before the
} redirection is applied.
It makes a practical difference if $argv or its aliases are mentioned, or
for special parameters like funcstack and zsh_eval_context.
} > torch% cat /tmp/foo
} > foo() { echo foo } >&3
} > torch% zcompile -k /tmp/foo
} > torch% autoload foo
} > torch% FPATH=/tmp foo
} > foo
} >
} > Oops, the redirection didn't get applied.
}
} Not sure how that could happen --- there must be some kludge to run the
} function the first time. I guess this is specific to ksh style ---
} there may be something funny with the EF_RUN flag.
loadautofn() does a direct call to execode() in some cases but not in
others. That or something like it is probably bypassing the redirect
handling.
next prev parent reply other threads:[~2014-10-02 15:54 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-29 19:52 Peter Stephenson
2014-09-29 20:27 ` Peter Stephenson
2014-09-29 20:53 ` Bart Schaefer
2014-09-29 21:37 ` Bart Schaefer
2014-09-30 4:51 ` Mikael Magnusson
2014-10-01 19:17 ` Peter Stephenson
2014-10-02 4:07 ` Bart Schaefer
2014-10-02 8:35 ` Peter Stephenson
2014-10-02 14:55 ` Peter Stephenson
2014-10-02 15:54 ` Bart Schaefer [this message]
2014-10-02 15:56 ` Bart Schaefer
2014-10-02 16:03 ` Peter Stephenson
2014-09-30 1:02 ` Bart Schaefer
2014-09-30 8:48 ` Peter Stephenson
2014-09-30 11:52 ` Peter Stephenson
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