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In-reply-to: <200501121558.j0CFwgeq026991@news01.csr.com> 
From: Oliver Kiddle <okiddle@yahoo.co.uk>
References: <m3r7kr31g9.fsf@zion.rcn.com> <200501121027.j0CAR12W018808@news01.csr.com> <m33bx6wwzx.fsf@zion.rcn.com> <200501121558.j0CFwgeq026991@news01.csr.com>
To: zsh-workers@sunsite.dk
Subject: Re: POSIX conformance in coreutils 
Date: Wed, 23 Feb 2005 17:36:03 +0100
Message-ID: <22172.1109176563@trentino.logica.co.uk>
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On 12 Jan, Peter wrote:
> Vin Shelton wrote:
> > I checked and I do not have POSIXLY_CORRECT set.  Here's what the
> > 'Standards conformance' section of the coreutils info says:
> 
> It doesn't look like we can expect much sense, then.
> 
> Here is a more heavyweight change.

> +  if [[ -z $TAIL_SUPPORTS_MINUS_N ]]; then

Would it perhaps be easier to just use something like this:

  tail() {
    local arr
    arr=( ${(f)"$(</dev/fd/0)"} )
    print -lr -- $arr[${1:--10},-1]
  }

It's shorter and potentially tests other zsh features as a side-effect
(such as emulating /dev/fd in redirections).

Oliver